unalz/00007000001040€ÿÿÿÿ0000000000011164625223014462 5ustar Administrators????????unalz/bzip2/00007000001040€ÿÿÿÿ0000000000011164625223015510 5ustar Administrators????????unalz/bzip2/blocksort.c00007000001040€ÿÿÿÿ0000007374610726756652017720 0ustar Administrators???????? /*-------------------------------------------------------------*/ /*--- Block sorting machinery ---*/ /*--- blocksort.c ---*/ /*-------------------------------------------------------------*/ /* ------------------------------------------------------------------ This file is part of bzip2/libbzip2, a program and library for lossless, block-sorting data compression. bzip2/libbzip2 version 1.0.5 of 10 December 2007 Copyright (C) 1996-2007 Julian Seward Please read the WARNING, DISCLAIMER and PATENTS sections in the README file. This program is released under the terms of the license contained in the file LICENSE. ------------------------------------------------------------------ */ #include "bzlib_private.h" /*---------------------------------------------*/ /*--- Fallback O(N log(N)^2) sorting ---*/ /*--- algorithm, for repetitive blocks ---*/ /*---------------------------------------------*/ /*---------------------------------------------*/ static __inline__ void fallbackSimpleSort ( UInt32* fmap, UInt32* eclass, Int32 lo, Int32 hi ) { Int32 i, j, tmp; UInt32 ec_tmp; if (lo == hi) return; if (hi - lo > 3) { for ( i = hi-4; i >= lo; i-- ) { tmp = fmap[i]; ec_tmp = eclass[tmp]; for ( j = i+4; j <= hi && ec_tmp > eclass[fmap[j]]; j += 4 ) fmap[j-4] = fmap[j]; fmap[j-4] = tmp; } } for ( i = hi-1; i >= lo; i-- ) { tmp = fmap[i]; ec_tmp = eclass[tmp]; for ( j = i+1; j <= hi && ec_tmp > eclass[fmap[j]]; j++ ) fmap[j-1] = fmap[j]; fmap[j-1] = tmp; } } /*---------------------------------------------*/ #define fswap(zz1, zz2) \ { Int32 zztmp = zz1; zz1 = zz2; zz2 = zztmp; } #define fvswap(zzp1, zzp2, zzn) \ { \ Int32 yyp1 = (zzp1); \ Int32 yyp2 = (zzp2); \ Int32 yyn = (zzn); \ while (yyn > 0) { \ fswap(fmap[yyp1], fmap[yyp2]); \ yyp1++; yyp2++; yyn--; \ } \ } #define fmin(a,b) ((a) < (b)) ? (a) : (b) #define fpush(lz,hz) { stackLo[sp] = lz; \ stackHi[sp] = hz; \ sp++; } #define fpop(lz,hz) { sp--; \ lz = stackLo[sp]; \ hz = stackHi[sp]; } #define FALLBACK_QSORT_SMALL_THRESH 10 #define FALLBACK_QSORT_STACK_SIZE 100 static void fallbackQSort3 ( UInt32* fmap, UInt32* eclass, Int32 loSt, Int32 hiSt ) { Int32 unLo, unHi, ltLo, gtHi, n, m; Int32 sp, lo, hi; UInt32 med, r, r3; Int32 stackLo[FALLBACK_QSORT_STACK_SIZE]; Int32 stackHi[FALLBACK_QSORT_STACK_SIZE]; r = 0; sp = 0; fpush ( loSt, hiSt ); while (sp > 0) { AssertH ( sp < FALLBACK_QSORT_STACK_SIZE - 1, 1004 ); fpop ( lo, hi ); if (hi - lo < FALLBACK_QSORT_SMALL_THRESH) { fallbackSimpleSort ( fmap, eclass, lo, hi ); continue; } /* Random partitioning. Median of 3 sometimes fails to avoid bad cases. Median of 9 seems to help but looks rather expensive. This too seems to work but is cheaper. Guidance for the magic constants 7621 and 32768 is taken from Sedgewick's algorithms book, chapter 35. */ r = ((r * 7621) + 1) % 32768; r3 = r % 3; if (r3 == 0) med = eclass[fmap[lo]]; else if (r3 == 1) med = eclass[fmap[(lo+hi)>>1]]; else med = eclass[fmap[hi]]; unLo = ltLo = lo; unHi = gtHi = hi; while (1) { while (1) { if (unLo > unHi) break; n = (Int32)eclass[fmap[unLo]] - (Int32)med; if (n == 0) { fswap(fmap[unLo], fmap[ltLo]); ltLo++; unLo++; continue; }; if (n > 0) break; unLo++; } while (1) { if (unLo > unHi) break; n = (Int32)eclass[fmap[unHi]] - (Int32)med; if (n == 0) { fswap(fmap[unHi], fmap[gtHi]); gtHi--; unHi--; continue; }; if (n < 0) break; unHi--; } if (unLo > unHi) break; fswap(fmap[unLo], fmap[unHi]); unLo++; unHi--; } AssertD ( unHi == unLo-1, "fallbackQSort3(2)" ); if (gtHi < ltLo) continue; n = fmin(ltLo-lo, unLo-ltLo); fvswap(lo, unLo-n, n); m = fmin(hi-gtHi, gtHi-unHi); fvswap(unLo, hi-m+1, m); n = lo + unLo - ltLo - 1; m = hi - (gtHi - unHi) + 1; if (n - lo > hi - m) { fpush ( lo, n ); fpush ( m, hi ); } else { fpush ( m, hi ); fpush ( lo, n ); } } } #undef fmin #undef fpush #undef fpop #undef fswap #undef fvswap #undef FALLBACK_QSORT_SMALL_THRESH #undef FALLBACK_QSORT_STACK_SIZE /*---------------------------------------------*/ /* Pre: nblock > 0 eclass exists for [0 .. nblock-1] ((UChar*)eclass) [0 .. nblock-1] holds block ptr exists for [0 .. nblock-1] Post: ((UChar*)eclass) [0 .. nblock-1] holds block All other areas of eclass destroyed fmap [0 .. nblock-1] holds sorted order bhtab [ 0 .. 2+(nblock/32) ] destroyed */ #define SET_BH(zz) bhtab[(zz) >> 5] |= (1 << ((zz) & 31)) #define CLEAR_BH(zz) bhtab[(zz) >> 5] &= ~(1 << ((zz) & 31)) #define ISSET_BH(zz) (bhtab[(zz) >> 5] & (1 << ((zz) & 31))) #define WORD_BH(zz) bhtab[(zz) >> 5] #define UNALIGNED_BH(zz) ((zz) & 0x01f) static void fallbackSort ( UInt32* fmap, UInt32* eclass, UInt32* bhtab, Int32 nblock, Int32 verb ) { Int32 ftab[257]; Int32 ftabCopy[256]; Int32 H, i, j, k, l, r, cc, cc1; Int32 nNotDone; Int32 nBhtab; UChar* eclass8 = (UChar*)eclass; /*-- Initial 1-char radix sort to generate initial fmap and initial BH bits. --*/ if (verb >= 4) VPrintf0 ( " bucket sorting ...\n" ); for (i = 0; i < 257; i++) ftab[i] = 0; for (i = 0; i < nblock; i++) ftab[eclass8[i]]++; for (i = 0; i < 256; i++) ftabCopy[i] = ftab[i]; for (i = 1; i < 257; i++) ftab[i] += ftab[i-1]; for (i = 0; i < nblock; i++) { j = eclass8[i]; k = ftab[j] - 1; ftab[j] = k; fmap[k] = i; } nBhtab = 2 + (nblock / 32); for (i = 0; i < nBhtab; i++) bhtab[i] = 0; for (i = 0; i < 256; i++) SET_BH(ftab[i]); /*-- Inductively refine the buckets. Kind-of an "exponential radix sort" (!), inspired by the Manber-Myers suffix array construction algorithm. --*/ /*-- set sentinel bits for block-end detection --*/ for (i = 0; i < 32; i++) { SET_BH(nblock + 2*i); CLEAR_BH(nblock + 2*i + 1); } /*-- the log(N) loop --*/ H = 1; while (1) { if (verb >= 4) VPrintf1 ( " depth %6d has ", H ); j = 0; for (i = 0; i < nblock; i++) { if (ISSET_BH(i)) j = i; k = fmap[i] - H; if (k < 0) k += nblock; eclass[k] = j; } nNotDone = 0; r = -1; while (1) { /*-- find the next non-singleton bucket --*/ k = r + 1; while (ISSET_BH(k) && UNALIGNED_BH(k)) k++; if (ISSET_BH(k)) { while (WORD_BH(k) == 0xffffffff) k += 32; while (ISSET_BH(k)) k++; } l = k - 1; if (l >= nblock) break; while (!ISSET_BH(k) && UNALIGNED_BH(k)) k++; if (!ISSET_BH(k)) { while (WORD_BH(k) == 0x00000000) k += 32; while (!ISSET_BH(k)) k++; } r = k - 1; if (r >= nblock) break; /*-- now [l, r] bracket current bucket --*/ if (r > l) { nNotDone += (r - l + 1); fallbackQSort3 ( fmap, eclass, l, r ); /*-- scan bucket and generate header bits-- */ cc = -1; for (i = l; i <= r; i++) { cc1 = eclass[fmap[i]]; if (cc != cc1) { SET_BH(i); cc = cc1; }; } } } if (verb >= 4) VPrintf1 ( "%6d unresolved strings\n", nNotDone ); H *= 2; if (H > nblock || nNotDone == 0) break; } /*-- Reconstruct the original block in eclass8 [0 .. nblock-1], since the previous phase destroyed it. --*/ if (verb >= 4) VPrintf0 ( " reconstructing block ...\n" ); j = 0; for (i = 0; i < nblock; i++) { while (ftabCopy[j] == 0) j++; ftabCopy[j]--; eclass8[fmap[i]] = (UChar)j; } AssertH ( j < 256, 1005 ); } #undef SET_BH #undef CLEAR_BH #undef ISSET_BH #undef WORD_BH #undef UNALIGNED_BH /*---------------------------------------------*/ /*--- The main, O(N^2 log(N)) sorting ---*/ /*--- algorithm. Faster for "normal" ---*/ /*--- non-repetitive blocks. ---*/ /*---------------------------------------------*/ /*---------------------------------------------*/ static __inline__ Bool mainGtU ( UInt32 i1, UInt32 i2, UChar* block, UInt16* quadrant, UInt32 nblock, Int32* budget ) { Int32 k; UChar c1, c2; UInt16 s1, s2; AssertD ( i1 != i2, "mainGtU" ); /* 1 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); i1++; i2++; /* 2 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); i1++; i2++; /* 3 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); i1++; i2++; /* 4 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); i1++; i2++; /* 5 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); i1++; i2++; /* 6 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); i1++; i2++; /* 7 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); i1++; i2++; /* 8 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); i1++; i2++; /* 9 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); i1++; i2++; /* 10 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); i1++; i2++; /* 11 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); i1++; i2++; /* 12 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); i1++; i2++; k = nblock + 8; do { /* 1 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); s1 = quadrant[i1]; s2 = quadrant[i2]; if (s1 != s2) return (s1 > s2); i1++; i2++; /* 2 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); s1 = quadrant[i1]; s2 = quadrant[i2]; if (s1 != s2) return (s1 > s2); i1++; i2++; /* 3 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); s1 = quadrant[i1]; s2 = quadrant[i2]; if (s1 != s2) return (s1 > s2); i1++; i2++; /* 4 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); s1 = quadrant[i1]; s2 = quadrant[i2]; if (s1 != s2) return (s1 > s2); i1++; i2++; /* 5 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); s1 = quadrant[i1]; s2 = quadrant[i2]; if (s1 != s2) return (s1 > s2); i1++; i2++; /* 6 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); s1 = quadrant[i1]; s2 = quadrant[i2]; if (s1 != s2) return (s1 > s2); i1++; i2++; /* 7 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); s1 = quadrant[i1]; s2 = quadrant[i2]; if (s1 != s2) return (s1 > s2); i1++; i2++; /* 8 */ c1 = block[i1]; c2 = block[i2]; if (c1 != c2) return (c1 > c2); s1 = quadrant[i1]; s2 = quadrant[i2]; if (s1 != s2) return (s1 > s2); i1++; i2++; if (i1 >= nblock) i1 -= nblock; if (i2 >= nblock) i2 -= nblock; k -= 8; (*budget)--; } while (k >= 0); return False; } /*---------------------------------------------*/ /*-- Knuth's increments seem to work better than Incerpi-Sedgewick here. Possibly because the number of elems to sort is usually small, typically <= 20. --*/ static Int32 incs[14] = { 1, 4, 13, 40, 121, 364, 1093, 3280, 9841, 29524, 88573, 265720, 797161, 2391484 }; static void mainSimpleSort ( UInt32* ptr, UChar* block, UInt16* quadrant, Int32 nblock, Int32 lo, Int32 hi, Int32 d, Int32* budget ) { Int32 i, j, h, bigN, hp; UInt32 v; bigN = hi - lo + 1; if (bigN < 2) return; hp = 0; while (incs[hp] < bigN) hp++; hp--; for (; hp >= 0; hp--) { h = incs[hp]; i = lo + h; while (True) { /*-- copy 1 --*/ if (i > hi) break; v = ptr[i]; j = i; while ( mainGtU ( ptr[j-h]+d, v+d, block, quadrant, nblock, budget ) ) { ptr[j] = ptr[j-h]; j = j - h; if (j <= (lo + h - 1)) break; } ptr[j] = v; i++; /*-- copy 2 --*/ if (i > hi) break; v = ptr[i]; j = i; while ( mainGtU ( ptr[j-h]+d, v+d, block, quadrant, nblock, budget ) ) { ptr[j] = ptr[j-h]; j = j - h; if (j <= (lo + h - 1)) break; } ptr[j] = v; i++; /*-- copy 3 --*/ if (i > hi) break; v = ptr[i]; j = i; while ( mainGtU ( ptr[j-h]+d, v+d, block, quadrant, nblock, budget ) ) { ptr[j] = ptr[j-h]; j = j - h; if (j <= (lo + h - 1)) break; } ptr[j] = v; i++; if (*budget < 0) return; } } } /*---------------------------------------------*/ /*-- The following is an implementation of an elegant 3-way quicksort for strings, described in a paper "Fast Algorithms for Sorting and Searching Strings", by Robert Sedgewick and Jon L. Bentley. --*/ #define mswap(zz1, zz2) \ { Int32 zztmp = zz1; zz1 = zz2; zz2 = zztmp; } #define mvswap(zzp1, zzp2, zzn) \ { \ Int32 yyp1 = (zzp1); \ Int32 yyp2 = (zzp2); \ Int32 yyn = (zzn); \ while (yyn > 0) { \ mswap(ptr[yyp1], ptr[yyp2]); \ yyp1++; yyp2++; yyn--; \ } \ } static __inline__ UChar mmed3 ( UChar a, UChar b, UChar c ) { UChar t; if (a > b) { t = a; a = b; b = t; }; if (b > c) { b = c; if (a > b) b = a; } return b; } #define mmin(a,b) ((a) < (b)) ? (a) : (b) #define mpush(lz,hz,dz) { stackLo[sp] = lz; \ stackHi[sp] = hz; \ stackD [sp] = dz; \ sp++; } #define mpop(lz,hz,dz) { sp--; \ lz = stackLo[sp]; \ hz = stackHi[sp]; \ dz = stackD [sp]; } #define mnextsize(az) (nextHi[az]-nextLo[az]) #define mnextswap(az,bz) \ { Int32 tz; \ tz = nextLo[az]; nextLo[az] = nextLo[bz]; nextLo[bz] = tz; \ tz = nextHi[az]; nextHi[az] = nextHi[bz]; nextHi[bz] = tz; \ tz = nextD [az]; nextD [az] = nextD [bz]; nextD [bz] = tz; } #define MAIN_QSORT_SMALL_THRESH 20 #define MAIN_QSORT_DEPTH_THRESH (BZ_N_RADIX + BZ_N_QSORT) #define MAIN_QSORT_STACK_SIZE 100 static void mainQSort3 ( UInt32* ptr, UChar* block, UInt16* quadrant, Int32 nblock, Int32 loSt, Int32 hiSt, Int32 dSt, Int32* budget ) { Int32 unLo, unHi, ltLo, gtHi, n, m, med; Int32 sp, lo, hi, d; Int32 stackLo[MAIN_QSORT_STACK_SIZE]; Int32 stackHi[MAIN_QSORT_STACK_SIZE]; Int32 stackD [MAIN_QSORT_STACK_SIZE]; Int32 nextLo[3]; Int32 nextHi[3]; Int32 nextD [3]; sp = 0; mpush ( loSt, hiSt, dSt ); while (sp > 0) { AssertH ( sp < MAIN_QSORT_STACK_SIZE - 2, 1001 ); mpop ( lo, hi, d ); if (hi - lo < MAIN_QSORT_SMALL_THRESH || d > MAIN_QSORT_DEPTH_THRESH) { mainSimpleSort ( ptr, block, quadrant, nblock, lo, hi, d, budget ); if (*budget < 0) return; continue; } med = (Int32) mmed3 ( block[ptr[ lo ]+d], block[ptr[ hi ]+d], block[ptr[ (lo+hi)>>1 ]+d] ); unLo = ltLo = lo; unHi = gtHi = hi; while (True) { while (True) { if (unLo > unHi) break; n = ((Int32)block[ptr[unLo]+d]) - med; if (n == 0) { mswap(ptr[unLo], ptr[ltLo]); ltLo++; unLo++; continue; }; if (n > 0) break; unLo++; } while (True) { if (unLo > unHi) break; n = ((Int32)block[ptr[unHi]+d]) - med; if (n == 0) { mswap(ptr[unHi], ptr[gtHi]); gtHi--; unHi--; continue; }; if (n < 0) break; unHi--; } if (unLo > unHi) break; mswap(ptr[unLo], ptr[unHi]); unLo++; unHi--; } AssertD ( unHi == unLo-1, "mainQSort3(2)" ); if (gtHi < ltLo) { mpush(lo, hi, d+1 ); continue; } n = mmin(ltLo-lo, unLo-ltLo); mvswap(lo, unLo-n, n); m = mmin(hi-gtHi, gtHi-unHi); mvswap(unLo, hi-m+1, m); n = lo + unLo - ltLo - 1; m = hi - (gtHi - unHi) + 1; nextLo[0] = lo; nextHi[0] = n; nextD[0] = d; nextLo[1] = m; nextHi[1] = hi; nextD[1] = d; nextLo[2] = n+1; nextHi[2] = m-1; nextD[2] = d+1; if (mnextsize(0) < mnextsize(1)) mnextswap(0,1); if (mnextsize(1) < mnextsize(2)) mnextswap(1,2); if (mnextsize(0) < mnextsize(1)) mnextswap(0,1); AssertD (mnextsize(0) >= mnextsize(1), "mainQSort3(8)" ); AssertD (mnextsize(1) >= mnextsize(2), "mainQSort3(9)" ); mpush (nextLo[0], nextHi[0], nextD[0]); mpush (nextLo[1], nextHi[1], nextD[1]); mpush (nextLo[2], nextHi[2], nextD[2]); } } #undef mswap #undef mvswap #undef mpush #undef mpop #undef mmin #undef mnextsize #undef mnextswap #undef MAIN_QSORT_SMALL_THRESH #undef MAIN_QSORT_DEPTH_THRESH #undef MAIN_QSORT_STACK_SIZE /*---------------------------------------------*/ /* Pre: nblock > N_OVERSHOOT block32 exists for [0 .. nblock-1 +N_OVERSHOOT] ((UChar*)block32) [0 .. nblock-1] holds block ptr exists for [0 .. nblock-1] Post: ((UChar*)block32) [0 .. nblock-1] holds block All other areas of block32 destroyed ftab [0 .. 65536 ] destroyed ptr [0 .. nblock-1] holds sorted order if (*budget < 0), sorting was abandoned */ #define BIGFREQ(b) (ftab[((b)+1) << 8] - ftab[(b) << 8]) #define SETMASK (1 << 21) #define CLEARMASK (~(SETMASK)) static void mainSort ( UInt32* ptr, UChar* block, UInt16* quadrant, UInt32* ftab, Int32 nblock, Int32 verb, Int32* budget ) { Int32 i, j, k, ss, sb; Int32 runningOrder[256]; Bool bigDone[256]; Int32 copyStart[256]; Int32 copyEnd [256]; UChar c1; Int32 numQSorted; UInt16 s; if (verb >= 4) VPrintf0 ( " main sort initialise ...\n" ); /*-- set up the 2-byte frequency table --*/ for (i = 65536; i >= 0; i--) ftab[i] = 0; j = block[0] << 8; i = nblock-1; for (; i >= 3; i -= 4) { quadrant[i] = 0; j = (j >> 8) | ( ((UInt16)block[i]) << 8); ftab[j]++; quadrant[i-1] = 0; j = (j >> 8) | ( ((UInt16)block[i-1]) << 8); ftab[j]++; quadrant[i-2] = 0; j = (j >> 8) | ( ((UInt16)block[i-2]) << 8); ftab[j]++; quadrant[i-3] = 0; j = (j >> 8) | ( ((UInt16)block[i-3]) << 8); ftab[j]++; } for (; i >= 0; i--) { quadrant[i] = 0; j = (j >> 8) | ( ((UInt16)block[i]) << 8); ftab[j]++; } /*-- (emphasises close relationship of block & quadrant) --*/ for (i = 0; i < BZ_N_OVERSHOOT; i++) { block [nblock+i] = block[i]; quadrant[nblock+i] = 0; } if (verb >= 4) VPrintf0 ( " bucket sorting ...\n" ); /*-- Complete the initial radix sort --*/ for (i = 1; i <= 65536; i++) ftab[i] += ftab[i-1]; s = block[0] << 8; i = nblock-1; for (; i >= 3; i -= 4) { s = (s >> 8) | (block[i] << 8); j = ftab[s] -1; ftab[s] = j; ptr[j] = i; s = (s >> 8) | (block[i-1] << 8); j = ftab[s] -1; ftab[s] = j; ptr[j] = i-1; s = (s >> 8) | (block[i-2] << 8); j = ftab[s] -1; ftab[s] = j; ptr[j] = i-2; s = (s >> 8) | (block[i-3] << 8); j = ftab[s] -1; ftab[s] = j; ptr[j] = i-3; } for (; i >= 0; i--) { s = (s >> 8) | (block[i] << 8); j = ftab[s] -1; ftab[s] = j; ptr[j] = i; } /*-- Now ftab contains the first loc of every small bucket. Calculate the running order, from smallest to largest big bucket. --*/ for (i = 0; i <= 255; i++) { bigDone [i] = False; runningOrder[i] = i; } { Int32 vv; Int32 h = 1; do h = 3 * h + 1; while (h <= 256); do { h = h / 3; for (i = h; i <= 255; i++) { vv = runningOrder[i]; j = i; while ( BIGFREQ(runningOrder[j-h]) > BIGFREQ(vv) ) { runningOrder[j] = runningOrder[j-h]; j = j - h; if (j <= (h - 1)) goto zero; } zero: runningOrder[j] = vv; } } while (h != 1); } /*-- The main sorting loop. --*/ numQSorted = 0; for (i = 0; i <= 255; i++) { /*-- Process big buckets, starting with the least full. Basically this is a 3-step process in which we call mainQSort3 to sort the small buckets [ss, j], but also make a big effort to avoid the calls if we can. --*/ ss = runningOrder[i]; /*-- Step 1: Complete the big bucket [ss] by quicksorting any unsorted small buckets [ss, j], for j != ss. Hopefully previous pointer-scanning phases have already completed many of the small buckets [ss, j], so we don't have to sort them at all. --*/ for (j = 0; j <= 255; j++) { if (j != ss) { sb = (ss << 8) + j; if ( ! (ftab[sb] & SETMASK) ) { Int32 lo = ftab[sb] & CLEARMASK; Int32 hi = (ftab[sb+1] & CLEARMASK) - 1; if (hi > lo) { if (verb >= 4) VPrintf4 ( " qsort [0x%x, 0x%x] " "done %d this %d\n", ss, j, numQSorted, hi - lo + 1 ); mainQSort3 ( ptr, block, quadrant, nblock, lo, hi, BZ_N_RADIX, budget ); numQSorted += (hi - lo + 1); if (*budget < 0) return; } } ftab[sb] |= SETMASK; } } AssertH ( !bigDone[ss], 1006 ); /*-- Step 2: Now scan this big bucket [ss] so as to synthesise the sorted order for small buckets [t, ss] for all t, including, magically, the bucket [ss,ss] too. This will avoid doing Real Work in subsequent Step 1's. --*/ { for (j = 0; j <= 255; j++) { copyStart[j] = ftab[(j << 8) + ss] & CLEARMASK; copyEnd [j] = (ftab[(j << 8) + ss + 1] & CLEARMASK) - 1; } for (j = ftab[ss << 8] & CLEARMASK; j < copyStart[ss]; j++) { k = ptr[j]-1; if (k < 0) k += nblock; c1 = block[k]; if (!bigDone[c1]) ptr[ copyStart[c1]++ ] = k; } for (j = (ftab[(ss+1) << 8] & CLEARMASK) - 1; j > copyEnd[ss]; j--) { k = ptr[j]-1; if (k < 0) k += nblock; c1 = block[k]; if (!bigDone[c1]) ptr[ copyEnd[c1]-- ] = k; } } AssertH ( (copyStart[ss]-1 == copyEnd[ss]) || /* Extremely rare case missing in bzip2-1.0.0 and 1.0.1. Necessity for this case is demonstrated by compressing a sequence of approximately 48.5 million of character 251; 1.0.0/1.0.1 will then die here. */ (copyStart[ss] == 0 && copyEnd[ss] == nblock-1), 1007 ) for (j = 0; j <= 255; j++) ftab[(j << 8) + ss] |= SETMASK; /*-- Step 3: The [ss] big bucket is now done. Record this fact, and update the quadrant descriptors. Remember to update quadrants in the overshoot area too, if necessary. The "if (i < 255)" test merely skips this updating for the last bucket processed, since updating for the last bucket is pointless. The quadrant array provides a way to incrementally cache sort orderings, as they appear, so as to make subsequent comparisons in fullGtU() complete faster. For repetitive blocks this makes a big difference (but not big enough to be able to avoid the fallback sorting mechanism, exponential radix sort). The precise meaning is: at all times: for 0 <= i < nblock and 0 <= j <= nblock if block[i] != block[j], then the relative values of quadrant[i] and quadrant[j] are meaningless. else { if quadrant[i] < quadrant[j] then the string starting at i lexicographically precedes the string starting at j else if quadrant[i] > quadrant[j] then the string starting at j lexicographically precedes the string starting at i else the relative ordering of the strings starting at i and j has not yet been determined. } --*/ bigDone[ss] = True; if (i < 255) { Int32 bbStart = ftab[ss << 8] & CLEARMASK; Int32 bbSize = (ftab[(ss+1) << 8] & CLEARMASK) - bbStart; Int32 shifts = 0; while ((bbSize >> shifts) > 65534) shifts++; for (j = bbSize-1; j >= 0; j--) { Int32 a2update = ptr[bbStart + j]; UInt16 qVal = (UInt16)(j >> shifts); quadrant[a2update] = qVal; if (a2update < BZ_N_OVERSHOOT) quadrant[a2update + nblock] = qVal; } AssertH ( ((bbSize-1) >> shifts) <= 65535, 1002 ); } } if (verb >= 4) VPrintf3 ( " %d pointers, %d sorted, %d scanned\n", nblock, numQSorted, nblock - numQSorted ); } #undef BIGFREQ #undef SETMASK #undef CLEARMASK /*---------------------------------------------*/ /* Pre: nblock > 0 arr2 exists for [0 .. nblock-1 +N_OVERSHOOT] ((UChar*)arr2) [0 .. nblock-1] holds block arr1 exists for [0 .. nblock-1] Post: ((UChar*)arr2) [0 .. nblock-1] holds block All other areas of block destroyed ftab [ 0 .. 65536 ] destroyed arr1 [0 .. nblock-1] holds sorted order */ void BZ2_blockSort ( EState* s ) { UInt32* ptr = s->ptr; UChar* block = s->block; UInt32* ftab = s->ftab; Int32 nblock = s->nblock; Int32 verb = s->verbosity; Int32 wfact = s->workFactor; UInt16* quadrant; Int32 budget; Int32 budgetInit; Int32 i; if (nblock < 10000) { fallbackSort ( s->arr1, s->arr2, ftab, nblock, verb ); } else { /* Calculate the location for quadrant, remembering to get the alignment right. Assumes that &(block[0]) is at least 2-byte aligned -- this should be ok since block is really the first section of arr2. */ i = nblock+BZ_N_OVERSHOOT; if (i & 1) i++; quadrant = (UInt16*)(&(block[i])); /* (wfact-1) / 3 puts the default-factor-30 transition point at very roughly the same place as with v0.1 and v0.9.0. Not that it particularly matters any more, since the resulting compressed stream is now the same regardless of whether or not we use the main sort or fallback sort. */ if (wfact < 1 ) wfact = 1; if (wfact > 100) wfact = 100; budgetInit = nblock * ((wfact-1) / 3); budget = budgetInit; mainSort ( ptr, block, quadrant, ftab, nblock, verb, &budget ); if (verb >= 3) VPrintf3 ( " %d work, %d block, ratio %5.2f\n", budgetInit - budget, nblock, (float)(budgetInit - budget) / (float)(nblock==0 ? 1 : nblock) ); if (budget < 0) { if (verb >= 2) VPrintf0 ( " too repetitive; using fallback" " sorting algorithm\n" ); fallbackSort ( s->arr1, s->arr2, ftab, nblock, verb ); } } s->origPtr = -1; for (i = 0; i < s->nblock; i++) if (ptr[i] == 0) { s->origPtr = i; break; }; AssertH( s->origPtr != -1, 1003 ); } /*-------------------------------------------------------------*/ /*--- end blocksort.c ---*/ /*-------------------------------------------------------------*/ unalz/bzip2/bzlib.h00007000001040€ÿÿÿÿ0000001414510726760337017004 0ustar Administrators???????? /*-------------------------------------------------------------*/ /*--- Public header file for the library. ---*/ /*--- bzlib.h ---*/ /*-------------------------------------------------------------*/ /* ------------------------------------------------------------------ This file is part of bzip2/libbzip2, a program and library for lossless, block-sorting data compression. bzip2/libbzip2 version 1.0.5 of 10 December 2007 Copyright (C) 1996-2007 Julian Seward Please read the WARNING, DISCLAIMER and PATENTS sections in the README file. This program is released under the terms of the license contained in the file LICENSE. ------------------------------------------------------------------ */ #ifndef _BZLIB_H #define _BZLIB_H #ifdef __cplusplus extern "C" { #endif #define BZ_RUN 0 #define BZ_FLUSH 1 #define BZ_FINISH 2 #define BZ_OK 0 #define BZ_RUN_OK 1 #define BZ_FLUSH_OK 2 #define BZ_FINISH_OK 3 #define BZ_STREAM_END 4 #define BZ_SEQUENCE_ERROR (-1) #define BZ_PARAM_ERROR (-2) #define BZ_MEM_ERROR (-3) #define BZ_DATA_ERROR (-4) #define BZ_DATA_ERROR_MAGIC (-5) #define BZ_IO_ERROR (-6) #define BZ_UNEXPECTED_EOF (-7) #define BZ_OUTBUFF_FULL (-8) #define BZ_CONFIG_ERROR (-9) typedef struct { char *next_in; unsigned int avail_in; unsigned int total_in_lo32; unsigned int total_in_hi32; char *next_out; unsigned int avail_out; unsigned int total_out_lo32; unsigned int total_out_hi32; void *state; void *(*bzalloc)(void *,int,int); void (*bzfree)(void *,void *); void *opaque; } bz_stream; #ifndef BZ_IMPORT #define BZ_EXPORT #endif #ifndef BZ_NO_STDIO /* Need a definitition for FILE */ #include #endif #ifdef _WIN32 # include # ifdef small /* windows.h define small to char */ # undef small # endif # ifdef BZ_EXPORT # define BZ_API(func) WINAPI func # define BZ_EXTERN extern # else /* import windows dll dynamically */ # define BZ_API(func) (WINAPI * func) # define BZ_EXTERN # endif #else # define BZ_API(func) func # define BZ_EXTERN extern #endif /*-- Core (low-level) library functions --*/ BZ_EXTERN int BZ_API(BZ2_bzCompressInit) ( bz_stream* strm, int blockSize100k, int verbosity, int workFactor ); BZ_EXTERN int BZ_API(BZ2_bzCompress) ( bz_stream* strm, int action ); BZ_EXTERN int BZ_API(BZ2_bzCompressEnd) ( bz_stream* strm ); BZ_EXTERN int BZ_API(BZ2_bzDecompressInit) ( bz_stream *strm, int verbosity, int small ); BZ_EXTERN int BZ_API(BZ2_bzDecompress) ( bz_stream* strm ); BZ_EXTERN int BZ_API(BZ2_bzDecompressEnd) ( bz_stream *strm ); /*-- High(er) level library functions --*/ #ifndef BZ_NO_STDIO #define BZ_MAX_UNUSED 5000 typedef void BZFILE; BZ_EXTERN BZFILE* BZ_API(BZ2_bzReadOpen) ( int* bzerror, FILE* f, int verbosity, int small, void* unused, int nUnused ); BZ_EXTERN void BZ_API(BZ2_bzReadClose) ( int* bzerror, BZFILE* b ); BZ_EXTERN void BZ_API(BZ2_bzReadGetUnused) ( int* bzerror, BZFILE* b, void** unused, int* nUnused ); BZ_EXTERN int BZ_API(BZ2_bzRead) ( int* bzerror, BZFILE* b, void* buf, int len ); BZ_EXTERN BZFILE* BZ_API(BZ2_bzWriteOpen) ( int* bzerror, FILE* f, int blockSize100k, int verbosity, int workFactor ); BZ_EXTERN void BZ_API(BZ2_bzWrite) ( int* bzerror, BZFILE* b, void* buf, int len ); BZ_EXTERN void BZ_API(BZ2_bzWriteClose) ( int* bzerror, BZFILE* b, int abandon, unsigned int* nbytes_in, unsigned int* nbytes_out ); BZ_EXTERN void BZ_API(BZ2_bzWriteClose64) ( int* bzerror, BZFILE* b, int abandon, unsigned int* nbytes_in_lo32, unsigned int* nbytes_in_hi32, unsigned int* nbytes_out_lo32, unsigned int* nbytes_out_hi32 ); #endif /*-- Utility functions --*/ BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffCompress) ( char* dest, unsigned int* destLen, char* source, unsigned int sourceLen, int blockSize100k, int verbosity, int workFactor ); BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffDecompress) ( char* dest, unsigned int* destLen, char* source, unsigned int sourceLen, int small, int verbosity ); /*-- Code contributed by Yoshioka Tsuneo (tsuneo@rr.iij4u.or.jp) to support better zlib compatibility. This code is not _officially_ part of libbzip2 (yet); I haven't tested it, documented it, or considered the threading-safeness of it. If this code breaks, please contact both Yoshioka and me. --*/ BZ_EXTERN const char * BZ_API(BZ2_bzlibVersion) ( void ); #ifndef BZ_NO_STDIO BZ_EXTERN BZFILE * BZ_API(BZ2_bzopen) ( const char *path, const char *mode ); BZ_EXTERN BZFILE * BZ_API(BZ2_bzdopen) ( int fd, const char *mode ); BZ_EXTERN int BZ_API(BZ2_bzread) ( BZFILE* b, void* buf, int len ); BZ_EXTERN int BZ_API(BZ2_bzwrite) ( BZFILE* b, void* buf, int len ); BZ_EXTERN int BZ_API(BZ2_bzflush) ( BZFILE* b ); BZ_EXTERN void BZ_API(BZ2_bzclose) ( BZFILE* b ); BZ_EXTERN const char * BZ_API(BZ2_bzerror) ( BZFILE *b, int *errnum ); #endif #ifdef __cplusplus } #endif #endif /*-------------------------------------------------------------*/ /*--- end bzlib.h ---*/ /*-------------------------------------------------------------*/ unalz/bzip2/bzlib_private.h00007000001040€ÿÿÿÿ0000003167410726772416020545 0ustar Administrators???????? /*-------------------------------------------------------------*/ /*--- Private header file for the library. ---*/ /*--- bzlib_private.h ---*/ /*-------------------------------------------------------------*/ /* ------------------------------------------------------------------ This file is part of bzip2/libbzip2, a program and library for lossless, block-sorting data compression. bzip2/libbzip2 version 1.0.5 of 10 December 2007 Copyright (C) 1996-2007 Julian Seward Please read the WARNING, DISCLAIMER and PATENTS sections in the README file. This program is released under the terms of the license contained in the file LICENSE. ------------------------------------------------------------------ */ #ifndef _BZLIB_PRIVATE_H #define _BZLIB_PRIVATE_H #include #ifndef BZ_NO_STDIO #include #include #include #endif #include "bzlib.h" /*-- General stuff. --*/ #define BZ_VERSION "1.0.5, 10-Dec-2007" typedef char Char; typedef unsigned char Bool; typedef unsigned char UChar; typedef int Int32; typedef unsigned int UInt32; typedef short Int16; typedef unsigned short UInt16; #define True ((Bool)1) #define False ((Bool)0) #ifndef __GNUC__ #define __inline__ /* */ #endif #ifndef BZ_NO_STDIO extern void BZ2_bz__AssertH__fail ( int errcode ); #define AssertH(cond,errcode) \ { if (!(cond)) BZ2_bz__AssertH__fail ( errcode ); } #if BZ_DEBUG #define AssertD(cond,msg) \ { if (!(cond)) { \ fprintf ( stderr, \ "\n\nlibbzip2(debug build): internal error\n\t%s\n", msg );\ exit(1); \ }} #else #define AssertD(cond,msg) /* */ #endif #define VPrintf0(zf) \ fprintf(stderr,zf) #define VPrintf1(zf,za1) \ fprintf(stderr,zf,za1) #define VPrintf2(zf,za1,za2) \ fprintf(stderr,zf,za1,za2) #define VPrintf3(zf,za1,za2,za3) \ fprintf(stderr,zf,za1,za2,za3) #define VPrintf4(zf,za1,za2,za3,za4) \ fprintf(stderr,zf,za1,za2,za3,za4) #define VPrintf5(zf,za1,za2,za3,za4,za5) \ fprintf(stderr,zf,za1,za2,za3,za4,za5) #else extern void bz_internal_error ( int errcode ); #define AssertH(cond,errcode) \ { if (!(cond)) bz_internal_error ( errcode ); } #define AssertD(cond,msg) do { } while (0) #define VPrintf0(zf) do { } while (0) #define VPrintf1(zf,za1) do { } while (0) #define VPrintf2(zf,za1,za2) do { } while (0) #define VPrintf3(zf,za1,za2,za3) do { } while (0) #define VPrintf4(zf,za1,za2,za3,za4) do { } while (0) #define VPrintf5(zf,za1,za2,za3,za4,za5) do { } while (0) #endif #define BZALLOC(nnn) (strm->bzalloc)(strm->opaque,(nnn),1) #define BZFREE(ppp) (strm->bzfree)(strm->opaque,(ppp)) /*-- Header bytes. --*/ #define BZ_HDR_B 0x42 /* 'B' */ #define BZ_HDR_Z 0x5a /* 'Z' */ #define BZ_HDR_h 0x68 /* 'h' */ #define BZ_HDR_0 0x30 /* '0' */ /*-- Constants for the back end. --*/ #define BZ_MAX_ALPHA_SIZE 258 #define BZ_MAX_CODE_LEN 23 #define BZ_RUNA 0 #define BZ_RUNB 1 #define BZ_N_GROUPS 6 #define BZ_G_SIZE 50 #define BZ_N_ITERS 4 #define BZ_MAX_SELECTORS (2 + (900000 / BZ_G_SIZE)) /*-- Stuff for randomising repetitive blocks. --*/ extern Int32 BZ2_rNums[512]; #define BZ_RAND_DECLS \ Int32 rNToGo; \ Int32 rTPos \ #define BZ_RAND_INIT_MASK \ s->rNToGo = 0; \ s->rTPos = 0 \ #define BZ_RAND_MASK ((s->rNToGo == 1) ? 1 : 0) #define BZ_RAND_UPD_MASK \ if (s->rNToGo == 0) { \ s->rNToGo = BZ2_rNums[s->rTPos]; \ s->rTPos++; \ if (s->rTPos == 512) s->rTPos = 0; \ } \ s->rNToGo--; /*-- Stuff for doing CRCs. --*/ extern UInt32 BZ2_crc32Table[256]; #define BZ_INITIALISE_CRC(crcVar) \ { \ crcVar = 0xffffffffL; \ } #define BZ_FINALISE_CRC(crcVar) \ { \ crcVar = ~(crcVar); \ } #define BZ_UPDATE_CRC(crcVar,cha) \ { \ crcVar = (crcVar << 8) ^ \ BZ2_crc32Table[(crcVar >> 24) ^ \ ((UChar)cha)]; \ } /*-- States and modes for compression. --*/ #define BZ_M_IDLE 1 #define BZ_M_RUNNING 2 #define BZ_M_FLUSHING 3 #define BZ_M_FINISHING 4 #define BZ_S_OUTPUT 1 #define BZ_S_INPUT 2 #define BZ_N_RADIX 2 #define BZ_N_QSORT 12 #define BZ_N_SHELL 18 #define BZ_N_OVERSHOOT (BZ_N_RADIX + BZ_N_QSORT + BZ_N_SHELL + 2) /*-- Structure holding all the compression-side stuff. --*/ typedef struct { /* pointer back to the struct bz_stream */ bz_stream* strm; /* mode this stream is in, and whether inputting */ /* or outputting data */ Int32 mode; Int32 state; /* remembers avail_in when flush/finish requested */ UInt32 avail_in_expect; /* for doing the block sorting */ UInt32* arr1; UInt32* arr2; UInt32* ftab; Int32 origPtr; /* aliases for arr1 and arr2 */ UInt32* ptr; UChar* block; UInt16* mtfv; UChar* zbits; /* for deciding when to use the fallback sorting algorithm */ Int32 workFactor; /* run-length-encoding of the input */ UInt32 state_in_ch; Int32 state_in_len; BZ_RAND_DECLS; /* input and output limits and current posns */ Int32 nblock; Int32 nblockMAX; Int32 numZ; Int32 state_out_pos; /* map of bytes used in block */ Int32 nInUse; Bool inUse[256]; UChar unseqToSeq[256]; /* the buffer for bit stream creation */ UInt32 bsBuff; Int32 bsLive; /* block and combined CRCs */ UInt32 blockCRC; UInt32 combinedCRC; /* misc administratium */ Int32 verbosity; Int32 blockNo; Int32 blockSize100k; /* stuff for coding the MTF values */ Int32 nMTF; Int32 mtfFreq [BZ_MAX_ALPHA_SIZE]; UChar selector [BZ_MAX_SELECTORS]; UChar selectorMtf[BZ_MAX_SELECTORS]; UChar len [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; Int32 code [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; Int32 rfreq [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; /* second dimension: only 3 needed; 4 makes index calculations faster */ UInt32 len_pack[BZ_MAX_ALPHA_SIZE][4]; } EState; /*-- externs for compression. --*/ extern void BZ2_blockSort ( EState* ); extern void BZ2_compressBlock ( EState*, Bool ); extern void BZ2_bsInitWrite ( EState* ); extern void BZ2_hbAssignCodes ( Int32*, UChar*, Int32, Int32, Int32 ); extern void BZ2_hbMakeCodeLengths ( UChar*, Int32*, Int32, Int32 ); /*-- states for decompression. --*/ #define BZ_X_IDLE 1 #define BZ_X_OUTPUT 2 #define BZ_X_MAGIC_1 10 #define BZ_X_MAGIC_2 11 #define BZ_X_MAGIC_3 12 #define BZ_X_MAGIC_4 13 #define BZ_X_BLKHDR_1 14 #define BZ_X_BLKHDR_2 15 #define BZ_X_BLKHDR_3 16 #define BZ_X_BLKHDR_4 17 #define BZ_X_BLKHDR_5 18 #define BZ_X_BLKHDR_6 19 #define BZ_X_BCRC_1 20 #define BZ_X_BCRC_2 21 #define BZ_X_BCRC_3 22 #define BZ_X_BCRC_4 23 #define BZ_X_RANDBIT 24 #define BZ_X_ORIGPTR_1 25 #define BZ_X_ORIGPTR_2 26 #define BZ_X_ORIGPTR_3 27 #define BZ_X_MAPPING_1 28 #define BZ_X_MAPPING_2 29 #define BZ_X_SELECTOR_1 30 #define BZ_X_SELECTOR_2 31 #define BZ_X_SELECTOR_3 32 #define BZ_X_CODING_1 33 #define BZ_X_CODING_2 34 #define BZ_X_CODING_3 35 #define BZ_X_MTF_1 36 #define BZ_X_MTF_2 37 #define BZ_X_MTF_3 38 #define BZ_X_MTF_4 39 #define BZ_X_MTF_5 40 #define BZ_X_MTF_6 41 #define BZ_X_ENDHDR_2 42 #define BZ_X_ENDHDR_3 43 #define BZ_X_ENDHDR_4 44 #define BZ_X_ENDHDR_5 45 #define BZ_X_ENDHDR_6 46 #define BZ_X_CCRC_1 47 #define BZ_X_CCRC_2 48 #define BZ_X_CCRC_3 49 #define BZ_X_CCRC_4 50 /*-- Constants for the fast MTF decoder. --*/ #define MTFA_SIZE 4096 #define MTFL_SIZE 16 /*-- Structure holding all the decompression-side stuff. --*/ typedef struct { /* pointer back to the struct bz_stream */ bz_stream* strm; /* state indicator for this stream */ Int32 state; /* for doing the final run-length decoding */ UChar state_out_ch; Int32 state_out_len; Bool blockRandomised; BZ_RAND_DECLS; /* the buffer for bit stream reading */ UInt32 bsBuff; Int32 bsLive; /* misc administratium */ Int32 blockSize100k; Bool smallDecompress; Int32 currBlockNo; Int32 verbosity; /* for undoing the Burrows-Wheeler transform */ Int32 origPtr; UInt32 tPos; Int32 k0; Int32 unzftab[256]; Int32 nblock_used; Int32 cftab[257]; Int32 cftabCopy[257]; /* for undoing the Burrows-Wheeler transform (FAST) */ UInt32 *tt; /* for undoing the Burrows-Wheeler transform (SMALL) */ UInt16 *ll16; UChar *ll4; /* stored and calculated CRCs */ UInt32 storedBlockCRC; UInt32 storedCombinedCRC; UInt32 calculatedBlockCRC; UInt32 calculatedCombinedCRC; /* map of bytes used in block */ Int32 nInUse; Bool inUse[256]; Bool inUse16[16]; UChar seqToUnseq[256]; /* for decoding the MTF values */ UChar mtfa [MTFA_SIZE]; Int32 mtfbase[256 / MTFL_SIZE]; UChar selector [BZ_MAX_SELECTORS]; UChar selectorMtf[BZ_MAX_SELECTORS]; UChar len [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; Int32 limit [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; Int32 base [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; Int32 perm [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; Int32 minLens[BZ_N_GROUPS]; /* save area for scalars in the main decompress code */ Int32 save_i; Int32 save_j; Int32 save_t; Int32 save_alphaSize; Int32 save_nGroups; Int32 save_nSelectors; Int32 save_EOB; Int32 save_groupNo; Int32 save_groupPos; Int32 save_nextSym; Int32 save_nblockMAX; Int32 save_nblock; Int32 save_es; Int32 save_N; Int32 save_curr; Int32 save_zt; Int32 save_zn; Int32 save_zvec; Int32 save_zj; Int32 save_gSel; Int32 save_gMinlen; Int32* save_gLimit; Int32* save_gBase; Int32* save_gPerm; } DState; /*-- Macros for decompression. --*/ #define BZ_GET_FAST(cccc) \ /* c_tPos is unsigned, hence test < 0 is pointless. */ \ if (s->tPos >= (UInt32)100000 * (UInt32)s->blockSize100k) return True; \ s->tPos = s->tt[s->tPos]; \ cccc = (UChar)(s->tPos & 0xff); \ s->tPos >>= 8; #define BZ_GET_FAST_C(cccc) \ /* c_tPos is unsigned, hence test < 0 is pointless. */ \ if (c_tPos >= (UInt32)100000 * (UInt32)ro_blockSize100k) return True; \ c_tPos = c_tt[c_tPos]; \ cccc = (UChar)(c_tPos & 0xff); \ c_tPos >>= 8; #define SET_LL4(i,n) \ { if (((i) & 0x1) == 0) \ s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0xf0) | (n); else \ s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0x0f) | ((n) << 4); \ } #define GET_LL4(i) \ ((((UInt32)(s->ll4[(i) >> 1])) >> (((i) << 2) & 0x4)) & 0xF) #define SET_LL(i,n) \ { s->ll16[i] = (UInt16)(n & 0x0000ffff); \ SET_LL4(i, n >> 16); \ } #define GET_LL(i) \ (((UInt32)s->ll16[i]) | (GET_LL4(i) << 16)) #define BZ_GET_SMALL(cccc) \ /* c_tPos is unsigned, hence test < 0 is pointless. */ \ if (s->tPos >= (UInt32)100000 * (UInt32)s->blockSize100k) return True; \ cccc = BZ2_indexIntoF ( s->tPos, s->cftab ); \ s->tPos = GET_LL(s->tPos); /*-- externs for decompression. --*/ extern Int32 BZ2_indexIntoF ( Int32, Int32* ); extern Int32 BZ2_decompress ( DState* ); extern void BZ2_hbCreateDecodeTables ( Int32*, Int32*, Int32*, UChar*, Int32, Int32, Int32 ); #endif /*-- BZ_NO_STDIO seems to make NULL disappear on some platforms. --*/ #ifdef BZ_NO_STDIO #ifndef NULL #define NULL 0 #endif #endif /*-------------------------------------------------------------*/ /*--- end bzlib_private.h ---*/ /*-------------------------------------------------------------*/ unalz/bzip2/compress.c00007000001040€ÿÿÿÿ0000005012110726757645017532 0ustar Administrators???????? /*-------------------------------------------------------------*/ /*--- Compression machinery (not incl block sorting) ---*/ /*--- compress.c ---*/ /*-------------------------------------------------------------*/ /* ------------------------------------------------------------------ This file is part of bzip2/libbzip2, a program and library for lossless, block-sorting data compression. bzip2/libbzip2 version 1.0.5 of 10 December 2007 Copyright (C) 1996-2007 Julian Seward Please read the WARNING, DISCLAIMER and PATENTS sections in the README file. This program is released under the terms of the license contained in the file LICENSE. ------------------------------------------------------------------ */ /* CHANGES 0.9.0 -- original version. 0.9.0a/b -- no changes in this file. 0.9.0c -- changed setting of nGroups in sendMTFValues() so as to do a bit better on small files */ #include "bzlib_private.h" /*---------------------------------------------------*/ /*--- Bit stream I/O ---*/ /*---------------------------------------------------*/ /*---------------------------------------------------*/ void BZ2_bsInitWrite ( EState* s ) { s->bsLive = 0; s->bsBuff = 0; } /*---------------------------------------------------*/ static void bsFinishWrite ( EState* s ) { while (s->bsLive > 0) { s->zbits[s->numZ] = (UChar)(s->bsBuff >> 24); s->numZ++; s->bsBuff <<= 8; s->bsLive -= 8; } } /*---------------------------------------------------*/ #define bsNEEDW(nz) \ { \ while (s->bsLive >= 8) { \ s->zbits[s->numZ] \ = (UChar)(s->bsBuff >> 24); \ s->numZ++; \ s->bsBuff <<= 8; \ s->bsLive -= 8; \ } \ } /*---------------------------------------------------*/ static __inline__ void bsW ( EState* s, Int32 n, UInt32 v ) { bsNEEDW ( n ); s->bsBuff |= (v << (32 - s->bsLive - n)); s->bsLive += n; } /*---------------------------------------------------*/ static void bsPutUInt32 ( EState* s, UInt32 u ) { bsW ( s, 8, (u >> 24) & 0xffL ); bsW ( s, 8, (u >> 16) & 0xffL ); bsW ( s, 8, (u >> 8) & 0xffL ); bsW ( s, 8, u & 0xffL ); } /*---------------------------------------------------*/ static void bsPutUChar ( EState* s, UChar c ) { bsW( s, 8, (UInt32)c ); } /*---------------------------------------------------*/ /*--- The back end proper ---*/ /*---------------------------------------------------*/ /*---------------------------------------------------*/ static void makeMaps_e ( EState* s ) { Int32 i; s->nInUse = 0; for (i = 0; i < 256; i++) if (s->inUse[i]) { s->unseqToSeq[i] = s->nInUse; s->nInUse++; } } /*---------------------------------------------------*/ static void generateMTFValues ( EState* s ) { UChar yy[256]; Int32 i, j; Int32 zPend; Int32 wr; Int32 EOB; /* After sorting (eg, here), s->arr1 [ 0 .. s->nblock-1 ] holds sorted order, and ((UChar*)s->arr2) [ 0 .. s->nblock-1 ] holds the original block data. The first thing to do is generate the MTF values, and put them in ((UInt16*)s->arr1) [ 0 .. s->nblock-1 ]. Because there are strictly fewer or equal MTF values than block values, ptr values in this area are overwritten with MTF values only when they are no longer needed. The final compressed bitstream is generated into the area starting at (UChar*) (&((UChar*)s->arr2)[s->nblock]) These storage aliases are set up in bzCompressInit(), except for the last one, which is arranged in compressBlock(). */ UInt32* ptr = s->ptr; UChar* block = s->block; UInt16* mtfv = s->mtfv; makeMaps_e ( s ); EOB = s->nInUse+1; for (i = 0; i <= EOB; i++) s->mtfFreq[i] = 0; wr = 0; zPend = 0; for (i = 0; i < s->nInUse; i++) yy[i] = (UChar) i; for (i = 0; i < s->nblock; i++) { UChar ll_i; AssertD ( wr <= i, "generateMTFValues(1)" ); j = ptr[i]-1; if (j < 0) j += s->nblock; ll_i = s->unseqToSeq[block[j]]; AssertD ( ll_i < s->nInUse, "generateMTFValues(2a)" ); if (yy[0] == ll_i) { zPend++; } else { if (zPend > 0) { zPend--; while (True) { if (zPend & 1) { mtfv[wr] = BZ_RUNB; wr++; s->mtfFreq[BZ_RUNB]++; } else { mtfv[wr] = BZ_RUNA; wr++; s->mtfFreq[BZ_RUNA]++; } if (zPend < 2) break; zPend = (zPend - 2) / 2; }; zPend = 0; } { register UChar rtmp; register UChar* ryy_j; register UChar rll_i; rtmp = yy[1]; yy[1] = yy[0]; ryy_j = &(yy[1]); rll_i = ll_i; while ( rll_i != rtmp ) { register UChar rtmp2; ryy_j++; rtmp2 = rtmp; rtmp = *ryy_j; *ryy_j = rtmp2; }; yy[0] = rtmp; j = ryy_j - &(yy[0]); mtfv[wr] = j+1; wr++; s->mtfFreq[j+1]++; } } } if (zPend > 0) { zPend--; while (True) { if (zPend & 1) { mtfv[wr] = BZ_RUNB; wr++; s->mtfFreq[BZ_RUNB]++; } else { mtfv[wr] = BZ_RUNA; wr++; s->mtfFreq[BZ_RUNA]++; } if (zPend < 2) break; zPend = (zPend - 2) / 2; }; zPend = 0; } mtfv[wr] = EOB; wr++; s->mtfFreq[EOB]++; s->nMTF = wr; } /*---------------------------------------------------*/ #define BZ_LESSER_ICOST 0 #define BZ_GREATER_ICOST 15 static void sendMTFValues ( EState* s ) { Int32 v, t, i, j, gs, ge, totc, bt, bc, iter; Int32 nSelectors, alphaSize, minLen, maxLen, selCtr; Int32 nGroups, nBytes; /*-- UChar len [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; is a global since the decoder also needs it. Int32 code[BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; Int32 rfreq[BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; are also globals only used in this proc. Made global to keep stack frame size small. --*/ UInt16 cost[BZ_N_GROUPS]; Int32 fave[BZ_N_GROUPS]; UInt16* mtfv = s->mtfv; if (s->verbosity >= 3) VPrintf3( " %d in block, %d after MTF & 1-2 coding, " "%d+2 syms in use\n", s->nblock, s->nMTF, s->nInUse ); alphaSize = s->nInUse+2; for (t = 0; t < BZ_N_GROUPS; t++) for (v = 0; v < alphaSize; v++) s->len[t][v] = BZ_GREATER_ICOST; /*--- Decide how many coding tables to use ---*/ AssertH ( s->nMTF > 0, 3001 ); if (s->nMTF < 200) nGroups = 2; else if (s->nMTF < 600) nGroups = 3; else if (s->nMTF < 1200) nGroups = 4; else if (s->nMTF < 2400) nGroups = 5; else nGroups = 6; /*--- Generate an initial set of coding tables ---*/ { Int32 nPart, remF, tFreq, aFreq; nPart = nGroups; remF = s->nMTF; gs = 0; while (nPart > 0) { tFreq = remF / nPart; ge = gs-1; aFreq = 0; while (aFreq < tFreq && ge < alphaSize-1) { ge++; aFreq += s->mtfFreq[ge]; } if (ge > gs && nPart != nGroups && nPart != 1 && ((nGroups-nPart) % 2 == 1)) { aFreq -= s->mtfFreq[ge]; ge--; } if (s->verbosity >= 3) VPrintf5( " initial group %d, [%d .. %d], " "has %d syms (%4.1f%%)\n", nPart, gs, ge, aFreq, (100.0 * (float)aFreq) / (float)(s->nMTF) ); for (v = 0; v < alphaSize; v++) if (v >= gs && v <= ge) s->len[nPart-1][v] = BZ_LESSER_ICOST; else s->len[nPart-1][v] = BZ_GREATER_ICOST; nPart--; gs = ge+1; remF -= aFreq; } } /*--- Iterate up to BZ_N_ITERS times to improve the tables. ---*/ for (iter = 0; iter < BZ_N_ITERS; iter++) { for (t = 0; t < nGroups; t++) fave[t] = 0; for (t = 0; t < nGroups; t++) for (v = 0; v < alphaSize; v++) s->rfreq[t][v] = 0; /*--- Set up an auxiliary length table which is used to fast-track the common case (nGroups == 6). ---*/ if (nGroups == 6) { for (v = 0; v < alphaSize; v++) { s->len_pack[v][0] = (s->len[1][v] << 16) | s->len[0][v]; s->len_pack[v][1] = (s->len[3][v] << 16) | s->len[2][v]; s->len_pack[v][2] = (s->len[5][v] << 16) | s->len[4][v]; } } nSelectors = 0; totc = 0; gs = 0; while (True) { /*--- Set group start & end marks. --*/ if (gs >= s->nMTF) break; ge = gs + BZ_G_SIZE - 1; if (ge >= s->nMTF) ge = s->nMTF-1; /*-- Calculate the cost of this group as coded by each of the coding tables. --*/ for (t = 0; t < nGroups; t++) cost[t] = 0; if (nGroups == 6 && 50 == ge-gs+1) { /*--- fast track the common case ---*/ register UInt32 cost01, cost23, cost45; register UInt16 icv; cost01 = cost23 = cost45 = 0; # define BZ_ITER(nn) \ icv = mtfv[gs+(nn)]; \ cost01 += s->len_pack[icv][0]; \ cost23 += s->len_pack[icv][1]; \ cost45 += s->len_pack[icv][2]; \ BZ_ITER(0); BZ_ITER(1); BZ_ITER(2); BZ_ITER(3); BZ_ITER(4); BZ_ITER(5); BZ_ITER(6); BZ_ITER(7); BZ_ITER(8); BZ_ITER(9); BZ_ITER(10); BZ_ITER(11); BZ_ITER(12); BZ_ITER(13); BZ_ITER(14); BZ_ITER(15); BZ_ITER(16); BZ_ITER(17); BZ_ITER(18); BZ_ITER(19); BZ_ITER(20); BZ_ITER(21); BZ_ITER(22); BZ_ITER(23); BZ_ITER(24); BZ_ITER(25); BZ_ITER(26); BZ_ITER(27); BZ_ITER(28); BZ_ITER(29); BZ_ITER(30); BZ_ITER(31); BZ_ITER(32); BZ_ITER(33); BZ_ITER(34); BZ_ITER(35); BZ_ITER(36); BZ_ITER(37); BZ_ITER(38); BZ_ITER(39); BZ_ITER(40); BZ_ITER(41); BZ_ITER(42); BZ_ITER(43); BZ_ITER(44); BZ_ITER(45); BZ_ITER(46); BZ_ITER(47); BZ_ITER(48); BZ_ITER(49); # undef BZ_ITER cost[0] = cost01 & 0xffff; cost[1] = cost01 >> 16; cost[2] = cost23 & 0xffff; cost[3] = cost23 >> 16; cost[4] = cost45 & 0xffff; cost[5] = cost45 >> 16; } else { /*--- slow version which correctly handles all situations ---*/ for (i = gs; i <= ge; i++) { UInt16 icv = mtfv[i]; for (t = 0; t < nGroups; t++) cost[t] += s->len[t][icv]; } } /*-- Find the coding table which is best for this group, and record its identity in the selector table. --*/ bc = 999999999; bt = -1; for (t = 0; t < nGroups; t++) if (cost[t] < bc) { bc = cost[t]; bt = t; }; totc += bc; fave[bt]++; s->selector[nSelectors] = bt; nSelectors++; /*-- Increment the symbol frequencies for the selected table. --*/ if (nGroups == 6 && 50 == ge-gs+1) { /*--- fast track the common case ---*/ # define BZ_ITUR(nn) s->rfreq[bt][ mtfv[gs+(nn)] ]++ BZ_ITUR(0); BZ_ITUR(1); BZ_ITUR(2); BZ_ITUR(3); BZ_ITUR(4); BZ_ITUR(5); BZ_ITUR(6); BZ_ITUR(7); BZ_ITUR(8); BZ_ITUR(9); BZ_ITUR(10); BZ_ITUR(11); BZ_ITUR(12); BZ_ITUR(13); BZ_ITUR(14); BZ_ITUR(15); BZ_ITUR(16); BZ_ITUR(17); BZ_ITUR(18); BZ_ITUR(19); BZ_ITUR(20); BZ_ITUR(21); BZ_ITUR(22); BZ_ITUR(23); BZ_ITUR(24); BZ_ITUR(25); BZ_ITUR(26); BZ_ITUR(27); BZ_ITUR(28); BZ_ITUR(29); BZ_ITUR(30); BZ_ITUR(31); BZ_ITUR(32); BZ_ITUR(33); BZ_ITUR(34); BZ_ITUR(35); BZ_ITUR(36); BZ_ITUR(37); BZ_ITUR(38); BZ_ITUR(39); BZ_ITUR(40); BZ_ITUR(41); BZ_ITUR(42); BZ_ITUR(43); BZ_ITUR(44); BZ_ITUR(45); BZ_ITUR(46); BZ_ITUR(47); BZ_ITUR(48); BZ_ITUR(49); # undef BZ_ITUR } else { /*--- slow version which correctly handles all situations ---*/ for (i = gs; i <= ge; i++) s->rfreq[bt][ mtfv[i] ]++; } gs = ge+1; } if (s->verbosity >= 3) { VPrintf2 ( " pass %d: size is %d, grp uses are ", iter+1, totc/8 ); for (t = 0; t < nGroups; t++) VPrintf1 ( "%d ", fave[t] ); VPrintf0 ( "\n" ); } /*-- Recompute the tables based on the accumulated frequencies. --*/ /* maxLen was changed from 20 to 17 in bzip2-1.0.3. See comment in huffman.c for details. */ for (t = 0; t < nGroups; t++) BZ2_hbMakeCodeLengths ( &(s->len[t][0]), &(s->rfreq[t][0]), alphaSize, 17 /*20*/ ); } AssertH( nGroups < 8, 3002 ); AssertH( nSelectors < 32768 && nSelectors <= (2 + (900000 / BZ_G_SIZE)), 3003 ); /*--- Compute MTF values for the selectors. ---*/ { UChar pos[BZ_N_GROUPS], ll_i, tmp2, tmp; for (i = 0; i < nGroups; i++) pos[i] = i; for (i = 0; i < nSelectors; i++) { ll_i = s->selector[i]; j = 0; tmp = pos[j]; while ( ll_i != tmp ) { j++; tmp2 = tmp; tmp = pos[j]; pos[j] = tmp2; }; pos[0] = tmp; s->selectorMtf[i] = j; } }; /*--- Assign actual codes for the tables. --*/ for (t = 0; t < nGroups; t++) { minLen = 32; maxLen = 0; for (i = 0; i < alphaSize; i++) { if (s->len[t][i] > maxLen) maxLen = s->len[t][i]; if (s->len[t][i] < minLen) minLen = s->len[t][i]; } AssertH ( !(maxLen > 17 /*20*/ ), 3004 ); AssertH ( !(minLen < 1), 3005 ); BZ2_hbAssignCodes ( &(s->code[t][0]), &(s->len[t][0]), minLen, maxLen, alphaSize ); } /*--- Transmit the mapping table. ---*/ { Bool inUse16[16]; for (i = 0; i < 16; i++) { inUse16[i] = False; for (j = 0; j < 16; j++) if (s->inUse[i * 16 + j]) inUse16[i] = True; } nBytes = s->numZ; for (i = 0; i < 16; i++) if (inUse16[i]) bsW(s,1,1); else bsW(s,1,0); for (i = 0; i < 16; i++) if (inUse16[i]) for (j = 0; j < 16; j++) { if (s->inUse[i * 16 + j]) bsW(s,1,1); else bsW(s,1,0); } if (s->verbosity >= 3) VPrintf1( " bytes: mapping %d, ", s->numZ-nBytes ); } /*--- Now the selectors. ---*/ nBytes = s->numZ; bsW ( s, 3, nGroups ); bsW ( s, 15, nSelectors ); for (i = 0; i < nSelectors; i++) { for (j = 0; j < s->selectorMtf[i]; j++) bsW(s,1,1); bsW(s,1,0); } if (s->verbosity >= 3) VPrintf1( "selectors %d, ", s->numZ-nBytes ); /*--- Now the coding tables. ---*/ nBytes = s->numZ; for (t = 0; t < nGroups; t++) { Int32 curr = s->len[t][0]; bsW ( s, 5, curr ); for (i = 0; i < alphaSize; i++) { while (curr < s->len[t][i]) { bsW(s,2,2); curr++; /* 10 */ }; while (curr > s->len[t][i]) { bsW(s,2,3); curr--; /* 11 */ }; bsW ( s, 1, 0 ); } } if (s->verbosity >= 3) VPrintf1 ( "code lengths %d, ", s->numZ-nBytes ); /*--- And finally, the block data proper ---*/ nBytes = s->numZ; selCtr = 0; gs = 0; while (True) { if (gs >= s->nMTF) break; ge = gs + BZ_G_SIZE - 1; if (ge >= s->nMTF) ge = s->nMTF-1; AssertH ( s->selector[selCtr] < nGroups, 3006 ); if (nGroups == 6 && 50 == ge-gs+1) { /*--- fast track the common case ---*/ UInt16 mtfv_i; UChar* s_len_sel_selCtr = &(s->len[s->selector[selCtr]][0]); Int32* s_code_sel_selCtr = &(s->code[s->selector[selCtr]][0]); # define BZ_ITAH(nn) \ mtfv_i = mtfv[gs+(nn)]; \ bsW ( s, \ s_len_sel_selCtr[mtfv_i], \ s_code_sel_selCtr[mtfv_i] ) BZ_ITAH(0); BZ_ITAH(1); BZ_ITAH(2); BZ_ITAH(3); BZ_ITAH(4); BZ_ITAH(5); BZ_ITAH(6); BZ_ITAH(7); BZ_ITAH(8); BZ_ITAH(9); BZ_ITAH(10); BZ_ITAH(11); BZ_ITAH(12); BZ_ITAH(13); BZ_ITAH(14); BZ_ITAH(15); BZ_ITAH(16); BZ_ITAH(17); BZ_ITAH(18); BZ_ITAH(19); BZ_ITAH(20); BZ_ITAH(21); BZ_ITAH(22); BZ_ITAH(23); BZ_ITAH(24); BZ_ITAH(25); BZ_ITAH(26); BZ_ITAH(27); BZ_ITAH(28); BZ_ITAH(29); BZ_ITAH(30); BZ_ITAH(31); BZ_ITAH(32); BZ_ITAH(33); BZ_ITAH(34); BZ_ITAH(35); BZ_ITAH(36); BZ_ITAH(37); BZ_ITAH(38); BZ_ITAH(39); BZ_ITAH(40); BZ_ITAH(41); BZ_ITAH(42); BZ_ITAH(43); BZ_ITAH(44); BZ_ITAH(45); BZ_ITAH(46); BZ_ITAH(47); BZ_ITAH(48); BZ_ITAH(49); # undef BZ_ITAH } else { /*--- slow version which correctly handles all situations ---*/ for (i = gs; i <= ge; i++) { bsW ( s, s->len [s->selector[selCtr]] [mtfv[i]], s->code [s->selector[selCtr]] [mtfv[i]] ); } } gs = ge+1; selCtr++; } AssertH( selCtr == nSelectors, 3007 ); if (s->verbosity >= 3) VPrintf1( "codes %d\n", s->numZ-nBytes ); } /*---------------------------------------------------*/ void BZ2_compressBlock ( EState* s, Bool is_last_block ) { if (s->nblock > 0) { BZ_FINALISE_CRC ( s->blockCRC ); s->combinedCRC = (s->combinedCRC << 1) | (s->combinedCRC >> 31); s->combinedCRC ^= s->blockCRC; if (s->blockNo > 1) s->numZ = 0; if (s->verbosity >= 2) VPrintf4( " block %d: crc = 0x%08x, " "combined CRC = 0x%08x, size = %d\n", s->blockNo, s->blockCRC, s->combinedCRC, s->nblock ); BZ2_blockSort ( s ); } s->zbits = (UChar*) (&((UChar*)s->arr2)[s->nblock]); /*-- If this is the first block, create the stream header. --*/ if (s->blockNo == 1) { BZ2_bsInitWrite ( s ); bsPutUChar ( s, BZ_HDR_B ); bsPutUChar ( s, BZ_HDR_Z ); bsPutUChar ( s, BZ_HDR_h ); bsPutUChar ( s, (UChar)(BZ_HDR_0 + s->blockSize100k) ); } if (s->nblock > 0) { bsPutUChar ( s, 0x31 ); bsPutUChar ( s, 0x41 ); bsPutUChar ( s, 0x59 ); bsPutUChar ( s, 0x26 ); bsPutUChar ( s, 0x53 ); bsPutUChar ( s, 0x59 ); /*-- Now the block's CRC, so it is in a known place. --*/ bsPutUInt32 ( s, s->blockCRC ); /*-- Now a single bit indicating (non-)randomisation. As of version 0.9.5, we use a better sorting algorithm which makes randomisation unnecessary. So always set the randomised bit to 'no'. Of course, the decoder still needs to be able to handle randomised blocks so as to maintain backwards compatibility with older versions of bzip2. --*/ bsW(s,1,0); bsW ( s, 24, s->origPtr ); generateMTFValues ( s ); sendMTFValues ( s ); } /*-- If this is the last block, add the stream trailer. --*/ if (is_last_block) { bsPutUChar ( s, 0x17 ); bsPutUChar ( s, 0x72 ); bsPutUChar ( s, 0x45 ); bsPutUChar ( s, 0x38 ); bsPutUChar ( s, 0x50 ); bsPutUChar ( s, 0x90 ); bsPutUInt32 ( s, s->combinedCRC ); if (s->verbosity >= 2) VPrintf1( " final combined CRC = 0x%08x\n ", s->combinedCRC ); bsFinishWrite ( s ); } } /*-------------------------------------------------------------*/ /*--- end compress.c ---*/ /*-------------------------------------------------------------*/ unalz/bzip2/crctable.c00007000001040€ÿÿÿÿ0000001132210726757675017461 0ustar Administrators???????? /*-------------------------------------------------------------*/ /*--- Table for doing CRCs ---*/ /*--- crctable.c ---*/ /*-------------------------------------------------------------*/ /* ------------------------------------------------------------------ This file is part of bzip2/libbzip2, a program and library for lossless, block-sorting data compression. bzip2/libbzip2 version 1.0.5 of 10 December 2007 Copyright (C) 1996-2007 Julian Seward Please read the WARNING, DISCLAIMER and PATENTS sections in the README file. This program is released under the terms of the license contained in the file LICENSE. ------------------------------------------------------------------ */ #include "bzlib_private.h" /*-- I think this is an implementation of the AUTODIN-II, Ethernet & FDDI 32-bit CRC standard. Vaguely derived from code by Rob Warnock, in Section 51 of the comp.compression FAQ. --*/ UInt32 BZ2_crc32Table[256] = { /*-- Ugly, innit? --*/ 0x00000000L, 0x04c11db7L, 0x09823b6eL, 0x0d4326d9L, 0x130476dcL, 0x17c56b6bL, 0x1a864db2L, 0x1e475005L, 0x2608edb8L, 0x22c9f00fL, 0x2f8ad6d6L, 0x2b4bcb61L, 0x350c9b64L, 0x31cd86d3L, 0x3c8ea00aL, 0x384fbdbdL, 0x4c11db70L, 0x48d0c6c7L, 0x4593e01eL, 0x4152fda9L, 0x5f15adacL, 0x5bd4b01bL, 0x569796c2L, 0x52568b75L, 0x6a1936c8L, 0x6ed82b7fL, 0x639b0da6L, 0x675a1011L, 0x791d4014L, 0x7ddc5da3L, 0x709f7b7aL, 0x745e66cdL, 0x9823b6e0L, 0x9ce2ab57L, 0x91a18d8eL, 0x95609039L, 0x8b27c03cL, 0x8fe6dd8bL, 0x82a5fb52L, 0x8664e6e5L, 0xbe2b5b58L, 0xbaea46efL, 0xb7a96036L, 0xb3687d81L, 0xad2f2d84L, 0xa9ee3033L, 0xa4ad16eaL, 0xa06c0b5dL, 0xd4326d90L, 0xd0f37027L, 0xddb056feL, 0xd9714b49L, 0xc7361b4cL, 0xc3f706fbL, 0xceb42022L, 0xca753d95L, 0xf23a8028L, 0xf6fb9d9fL, 0xfbb8bb46L, 0xff79a6f1L, 0xe13ef6f4L, 0xe5ffeb43L, 0xe8bccd9aL, 0xec7dd02dL, 0x34867077L, 0x30476dc0L, 0x3d044b19L, 0x39c556aeL, 0x278206abL, 0x23431b1cL, 0x2e003dc5L, 0x2ac12072L, 0x128e9dcfL, 0x164f8078L, 0x1b0ca6a1L, 0x1fcdbb16L, 0x018aeb13L, 0x054bf6a4L, 0x0808d07dL, 0x0cc9cdcaL, 0x7897ab07L, 0x7c56b6b0L, 0x71159069L, 0x75d48ddeL, 0x6b93dddbL, 0x6f52c06cL, 0x6211e6b5L, 0x66d0fb02L, 0x5e9f46bfL, 0x5a5e5b08L, 0x571d7dd1L, 0x53dc6066L, 0x4d9b3063L, 0x495a2dd4L, 0x44190b0dL, 0x40d816baL, 0xaca5c697L, 0xa864db20L, 0xa527fdf9L, 0xa1e6e04eL, 0xbfa1b04bL, 0xbb60adfcL, 0xb6238b25L, 0xb2e29692L, 0x8aad2b2fL, 0x8e6c3698L, 0x832f1041L, 0x87ee0df6L, 0x99a95df3L, 0x9d684044L, 0x902b669dL, 0x94ea7b2aL, 0xe0b41de7L, 0xe4750050L, 0xe9362689L, 0xedf73b3eL, 0xf3b06b3bL, 0xf771768cL, 0xfa325055L, 0xfef34de2L, 0xc6bcf05fL, 0xc27dede8L, 0xcf3ecb31L, 0xcbffd686L, 0xd5b88683L, 0xd1799b34L, 0xdc3abdedL, 0xd8fba05aL, 0x690ce0eeL, 0x6dcdfd59L, 0x608edb80L, 0x644fc637L, 0x7a089632L, 0x7ec98b85L, 0x738aad5cL, 0x774bb0ebL, 0x4f040d56L, 0x4bc510e1L, 0x46863638L, 0x42472b8fL, 0x5c007b8aL, 0x58c1663dL, 0x558240e4L, 0x51435d53L, 0x251d3b9eL, 0x21dc2629L, 0x2c9f00f0L, 0x285e1d47L, 0x36194d42L, 0x32d850f5L, 0x3f9b762cL, 0x3b5a6b9bL, 0x0315d626L, 0x07d4cb91L, 0x0a97ed48L, 0x0e56f0ffL, 0x1011a0faL, 0x14d0bd4dL, 0x19939b94L, 0x1d528623L, 0xf12f560eL, 0xf5ee4bb9L, 0xf8ad6d60L, 0xfc6c70d7L, 0xe22b20d2L, 0xe6ea3d65L, 0xeba91bbcL, 0xef68060bL, 0xd727bbb6L, 0xd3e6a601L, 0xdea580d8L, 0xda649d6fL, 0xc423cd6aL, 0xc0e2d0ddL, 0xcda1f604L, 0xc960ebb3L, 0xbd3e8d7eL, 0xb9ff90c9L, 0xb4bcb610L, 0xb07daba7L, 0xae3afba2L, 0xaafbe615L, 0xa7b8c0ccL, 0xa379dd7bL, 0x9b3660c6L, 0x9ff77d71L, 0x92b45ba8L, 0x9675461fL, 0x8832161aL, 0x8cf30badL, 0x81b02d74L, 0x857130c3L, 0x5d8a9099L, 0x594b8d2eL, 0x5408abf7L, 0x50c9b640L, 0x4e8ee645L, 0x4a4ffbf2L, 0x470cdd2bL, 0x43cdc09cL, 0x7b827d21L, 0x7f436096L, 0x7200464fL, 0x76c15bf8L, 0x68860bfdL, 0x6c47164aL, 0x61043093L, 0x65c52d24L, 0x119b4be9L, 0x155a565eL, 0x18197087L, 0x1cd86d30L, 0x029f3d35L, 0x065e2082L, 0x0b1d065bL, 0x0fdc1becL, 0x3793a651L, 0x3352bbe6L, 0x3e119d3fL, 0x3ad08088L, 0x2497d08dL, 0x2056cd3aL, 0x2d15ebe3L, 0x29d4f654L, 0xc5a92679L, 0xc1683bceL, 0xcc2b1d17L, 0xc8ea00a0L, 0xd6ad50a5L, 0xd26c4d12L, 0xdf2f6bcbL, 0xdbee767cL, 0xe3a1cbc1L, 0xe760d676L, 0xea23f0afL, 0xeee2ed18L, 0xf0a5bd1dL, 0xf464a0aaL, 0xf9278673L, 0xfde69bc4L, 0x89b8fd09L, 0x8d79e0beL, 0x803ac667L, 0x84fbdbd0L, 0x9abc8bd5L, 0x9e7d9662L, 0x933eb0bbL, 0x97ffad0cL, 0xafb010b1L, 0xab710d06L, 0xa6322bdfL, 0xa2f33668L, 0xbcb4666dL, 0xb8757bdaL, 0xb5365d03L, 0xb1f740b4L }; /*-------------------------------------------------------------*/ /*--- end crctable.c ---*/ /*-------------------------------------------------------------*/ unalz/bzip2/huffman.c00007000001040€ÿÿÿÿ0000001551710726760075017324 0ustar Administrators???????? /*-------------------------------------------------------------*/ /*--- Huffman coding low-level stuff ---*/ /*--- huffman.c ---*/ /*-------------------------------------------------------------*/ /* ------------------------------------------------------------------ This file is part of bzip2/libbzip2, a program and library for lossless, block-sorting data compression. bzip2/libbzip2 version 1.0.5 of 10 December 2007 Copyright (C) 1996-2007 Julian Seward Please read the WARNING, DISCLAIMER and PATENTS sections in the README file. This program is released under the terms of the license contained in the file LICENSE. ------------------------------------------------------------------ */ #include "bzlib_private.h" /*---------------------------------------------------*/ #define WEIGHTOF(zz0) ((zz0) & 0xffffff00) #define DEPTHOF(zz1) ((zz1) & 0x000000ff) #define MYMAX(zz2,zz3) ((zz2) > (zz3) ? (zz2) : (zz3)) #define ADDWEIGHTS(zw1,zw2) \ (WEIGHTOF(zw1)+WEIGHTOF(zw2)) | \ (1 + MYMAX(DEPTHOF(zw1),DEPTHOF(zw2))) #define UPHEAP(z) \ { \ Int32 zz, tmp; \ zz = z; tmp = heap[zz]; \ while (weight[tmp] < weight[heap[zz >> 1]]) { \ heap[zz] = heap[zz >> 1]; \ zz >>= 1; \ } \ heap[zz] = tmp; \ } #define DOWNHEAP(z) \ { \ Int32 zz, yy, tmp; \ zz = z; tmp = heap[zz]; \ while (True) { \ yy = zz << 1; \ if (yy > nHeap) break; \ if (yy < nHeap && \ weight[heap[yy+1]] < weight[heap[yy]]) \ yy++; \ if (weight[tmp] < weight[heap[yy]]) break; \ heap[zz] = heap[yy]; \ zz = yy; \ } \ heap[zz] = tmp; \ } /*---------------------------------------------------*/ void BZ2_hbMakeCodeLengths ( UChar *len, Int32 *freq, Int32 alphaSize, Int32 maxLen ) { /*-- Nodes and heap entries run from 1. Entry 0 for both the heap and nodes is a sentinel. --*/ Int32 nNodes, nHeap, n1, n2, i, j, k; Bool tooLong; Int32 heap [ BZ_MAX_ALPHA_SIZE + 2 ]; Int32 weight [ BZ_MAX_ALPHA_SIZE * 2 ]; Int32 parent [ BZ_MAX_ALPHA_SIZE * 2 ]; for (i = 0; i < alphaSize; i++) weight[i+1] = (freq[i] == 0 ? 1 : freq[i]) << 8; while (True) { nNodes = alphaSize; nHeap = 0; heap[0] = 0; weight[0] = 0; parent[0] = -2; for (i = 1; i <= alphaSize; i++) { parent[i] = -1; nHeap++; heap[nHeap] = i; UPHEAP(nHeap); } AssertH( nHeap < (BZ_MAX_ALPHA_SIZE+2), 2001 ); while (nHeap > 1) { n1 = heap[1]; heap[1] = heap[nHeap]; nHeap--; DOWNHEAP(1); n2 = heap[1]; heap[1] = heap[nHeap]; nHeap--; DOWNHEAP(1); nNodes++; parent[n1] = parent[n2] = nNodes; weight[nNodes] = ADDWEIGHTS(weight[n1], weight[n2]); parent[nNodes] = -1; nHeap++; heap[nHeap] = nNodes; UPHEAP(nHeap); } AssertH( nNodes < (BZ_MAX_ALPHA_SIZE * 2), 2002 ); tooLong = False; for (i = 1; i <= alphaSize; i++) { j = 0; k = i; while (parent[k] >= 0) { k = parent[k]; j++; } len[i-1] = j; if (j > maxLen) tooLong = True; } if (! tooLong) break; /* 17 Oct 04: keep-going condition for the following loop used to be 'i < alphaSize', which missed the last element, theoretically leading to the possibility of the compressor looping. However, this count-scaling step is only needed if one of the generated Huffman code words is longer than maxLen, which up to and including version 1.0.2 was 20 bits, which is extremely unlikely. In version 1.0.3 maxLen was changed to 17 bits, which has minimal effect on compression ratio, but does mean this scaling step is used from time to time, enough to verify that it works. This means that bzip2-1.0.3 and later will only produce Huffman codes with a maximum length of 17 bits. However, in order to preserve backwards compatibility with bitstreams produced by versions pre-1.0.3, the decompressor must still handle lengths of up to 20. */ for (i = 1; i <= alphaSize; i++) { j = weight[i] >> 8; j = 1 + (j / 2); weight[i] = j << 8; } } } /*---------------------------------------------------*/ void BZ2_hbAssignCodes ( Int32 *code, UChar *length, Int32 minLen, Int32 maxLen, Int32 alphaSize ) { Int32 n, vec, i; vec = 0; for (n = minLen; n <= maxLen; n++) { for (i = 0; i < alphaSize; i++) if (length[i] == n) { code[i] = vec; vec++; }; vec <<= 1; } } /*---------------------------------------------------*/ void BZ2_hbCreateDecodeTables ( Int32 *limit, Int32 *base, Int32 *perm, UChar *length, Int32 minLen, Int32 maxLen, Int32 alphaSize ) { Int32 pp, i, j, vec; pp = 0; for (i = minLen; i <= maxLen; i++) for (j = 0; j < alphaSize; j++) if (length[j] == i) { perm[pp] = j; pp++; }; for (i = 0; i < BZ_MAX_CODE_LEN; i++) base[i] = 0; for (i = 0; i < alphaSize; i++) base[length[i]+1]++; for (i = 1; i < BZ_MAX_CODE_LEN; i++) base[i] += base[i-1]; for (i = 0; i < BZ_MAX_CODE_LEN; i++) limit[i] = 0; vec = 0; for (i = minLen; i <= maxLen; i++) { vec += (base[i+1] - base[i]); limit[i] = vec-1; vec <<= 1; } for (i = minLen + 1; i <= maxLen; i++) base[i] = ((limit[i-1] + 1) << 1) - base[i]; } /*-------------------------------------------------------------*/ /*--- end huffman.c ---*/ /*-------------------------------------------------------------*/ unalz/bzip2/randtable.c00007000001040€ÿÿÿÿ0000000742410726760167017634 0ustar Administrators???????? /*-------------------------------------------------------------*/ /*--- Table for randomising repetitive blocks ---*/ /*--- randtable.c ---*/ /*-------------------------------------------------------------*/ /* ------------------------------------------------------------------ This file is part of bzip2/libbzip2, a program and library for lossless, block-sorting data compression. bzip2/libbzip2 version 1.0.5 of 10 December 2007 Copyright (C) 1996-2007 Julian Seward Please read the WARNING, DISCLAIMER and PATENTS sections in the README file. This program is released under the terms of the license contained in the file LICENSE. ------------------------------------------------------------------ */ #include "bzlib_private.h" /*---------------------------------------------*/ Int32 BZ2_rNums[512] = { 619, 720, 127, 481, 931, 816, 813, 233, 566, 247, 985, 724, 205, 454, 863, 491, 741, 242, 949, 214, 733, 859, 335, 708, 621, 574, 73, 654, 730, 472, 419, 436, 278, 496, 867, 210, 399, 680, 480, 51, 878, 465, 811, 169, 869, 675, 611, 697, 867, 561, 862, 687, 507, 283, 482, 129, 807, 591, 733, 623, 150, 238, 59, 379, 684, 877, 625, 169, 643, 105, 170, 607, 520, 932, 727, 476, 693, 425, 174, 647, 73, 122, 335, 530, 442, 853, 695, 249, 445, 515, 909, 545, 703, 919, 874, 474, 882, 500, 594, 612, 641, 801, 220, 162, 819, 984, 589, 513, 495, 799, 161, 604, 958, 533, 221, 400, 386, 867, 600, 782, 382, 596, 414, 171, 516, 375, 682, 485, 911, 276, 98, 553, 163, 354, 666, 933, 424, 341, 533, 870, 227, 730, 475, 186, 263, 647, 537, 686, 600, 224, 469, 68, 770, 919, 190, 373, 294, 822, 808, 206, 184, 943, 795, 384, 383, 461, 404, 758, 839, 887, 715, 67, 618, 276, 204, 918, 873, 777, 604, 560, 951, 160, 578, 722, 79, 804, 96, 409, 713, 940, 652, 934, 970, 447, 318, 353, 859, 672, 112, 785, 645, 863, 803, 350, 139, 93, 354, 99, 820, 908, 609, 772, 154, 274, 580, 184, 79, 626, 630, 742, 653, 282, 762, 623, 680, 81, 927, 626, 789, 125, 411, 521, 938, 300, 821, 78, 343, 175, 128, 250, 170, 774, 972, 275, 999, 639, 495, 78, 352, 126, 857, 956, 358, 619, 580, 124, 737, 594, 701, 612, 669, 112, 134, 694, 363, 992, 809, 743, 168, 974, 944, 375, 748, 52, 600, 747, 642, 182, 862, 81, 344, 805, 988, 739, 511, 655, 814, 334, 249, 515, 897, 955, 664, 981, 649, 113, 974, 459, 893, 228, 433, 837, 553, 268, 926, 240, 102, 654, 459, 51, 686, 754, 806, 760, 493, 403, 415, 394, 687, 700, 946, 670, 656, 610, 738, 392, 760, 799, 887, 653, 978, 321, 576, 617, 626, 502, 894, 679, 243, 440, 680, 879, 194, 572, 640, 724, 926, 56, 204, 700, 707, 151, 457, 449, 797, 195, 791, 558, 945, 679, 297, 59, 87, 824, 713, 663, 412, 693, 342, 606, 134, 108, 571, 364, 631, 212, 174, 643, 304, 329, 343, 97, 430, 751, 497, 314, 983, 374, 822, 928, 140, 206, 73, 263, 980, 736, 876, 478, 430, 305, 170, 514, 364, 692, 829, 82, 855, 953, 676, 246, 369, 970, 294, 750, 807, 827, 150, 790, 288, 923, 804, 378, 215, 828, 592, 281, 565, 555, 710, 82, 896, 831, 547, 261, 524, 462, 293, 465, 502, 56, 661, 821, 976, 991, 658, 869, 905, 758, 745, 193, 768, 550, 608, 933, 378, 286, 215, 979, 792, 961, 61, 688, 793, 644, 986, 403, 106, 366, 905, 644, 372, 567, 466, 434, 645, 210, 389, 550, 919, 135, 780, 773, 635, 389, 707, 100, 626, 958, 165, 504, 920, 176, 193, 713, 857, 265, 203, 50, 668, 108, 645, 990, 626, 197, 510, 357, 358, 850, 858, 364, 936, 638 }; /*-------------------------------------------------------------*/ /*--- end randtable.c ---*/ /*-------------------------------------------------------------*/ unalz/clear.bat00007000001040€ÿÿÿÿ0000000042610775273077016262 0ustar Administrators????????del *.plg *.obj *.o *.sbr *.pch *.pdb *.res *.bsc *.pcc *.idb *.pdb *.ncb *.aps *.ilk 2*.log *.map *.opt *.exp *.sup *.dpbcd gebug.txt *_d.exe *_d.dll *_d.lib *_debug.dll *_debug.exe *.tlh *.tli *.scc *.bak *.suo *.vspscc /s del unalz.exe rmdir bin rmdir release rmdir debugunalz/main.cpp00007000001040€ÿÿÿÿ0000002315311164601710016114 0ustar Administrators????????/* UNALZ : read and extract module for ALZ format. LICENSE (zlib License) Copyright (C) 2004-2009 kippler@gmail.com , http://www.kipple.pe.kr This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. ÀÌ ¼ÒÇÁÆ®¿þ¾î´Â ¾î¶°ÇÑ ¸í½ÃÀû ¶Ç´Â ¹¬½ÃÀû º¸Áõµµ ¾øÀÌ "ÀÖ´Â ±×´ë·Î" Á¦°øµË´Ï´Ù. ±× ¾î¶² °æ¿ì¿¡µµ ÀÛ¼ºÀÚ´Â ÀÌ ¼ÒÇÁÆ®¿þ¾îÀÇ »ç¿ëÀ¸·Î ÀÎÇÑ ¼ÕÇØ¿¡ ´ëÇØ Ã¥ÀÓÀ» ÁöÁö ¾Ê½À´Ï´Ù. ´ÙÀ½ Á¦ÇÑ ±ÔÁ¤À» ÁؼöÇÏ´Â °æ¿ì¿¡ ÇÑÇÏ¿© »ó¾÷ÀûÀÎ ÀÀ¿ë ÇÁ·Î±×·¥À» Æ÷ÇÔÇÏ´Â ¸ðµç ¿ëµµ·Î ÀÌ ¼ÒÇÁÆ®¿þ¾î¸¦ »ç¿ëÇÏ°í ÀÚÀ¯·Ó°Ô ¼öÁ¤ ¹× Àç¹èÆ÷ÇÒ ¼ö ÀÖ´Â ±ÇÇÑÀÌ ´©±¸¿¡°Ô³ª ºÎ¿©µË´Ï´Ù. 1. ÀÌ ¼ÒÇÁÆ®¿þ¾îÀÇ Ãâó¸¦ À߸ø Ç¥½ÃÇϰųª ¿ø·¡ ¼ÒÇÁÆ®¿þ¾î¸¦ ÀÚ½ÅÀÌ ÀÛ¼ºÇß´Ù°í ÁÖÀåÇؼ­´Â ¾È µË´Ï´Ù. Á¦Ç°¿¡ ÀÌ ¼ÒÇÁÆ®¿þ¾î¸¦ »ç¿ëÇÏ´Â °æ¿ì ¿ä±¸ »çÇ×Àº ¾Æ´ÏÁö¸¸ Á¦Ç° ¼³¸í¼­¿¡ ÀÎÁ¤ Á¶Ç×À» ³Ö¾î ÁÖ½Ã¸é °¨»çÇÏ°Ú½À´Ï´Ù. 2. ¼öÁ¤µÈ ¼Ò½º ¹öÀüÀº ¹Ýµå½Ã ¸íÈ®ÇÏ°Ô Ç¥½ÃµÇ¾î¾ß ÇÏ¸ç ¿ø·¡ ¼ÒÇÁÆ®¿þ¾î·Î ¿ÀÀεǵµ·Ï À߸ø Ç¥½ÃÇؼ­´Â ¾È µË´Ï´Ù. 3. ¸ðµç ¼Ò½º ¹èÆ÷ ½Ã ÀÌ °øÁö¸¦ »èÁ¦Çϰųª ¼öÁ¤ÇÒ ¼ö ¾ø½À´Ï´Ù. ============================================================================================================= */ #ifdef _WIN32 # pragma warning( disable : 4786 ) // stl warning ¾ø¾Ö±â # pragma warning( disable : 4996 ) // crt secure warning #endif #include #include #include #include #include #include #include "UnAlz.h" #include "UnAlzUtils.h" #include BOOL g_bPipeMode=FALSE; void Copyright() { // printf("unalz v0.20 (2004/10/22) \n"); // printf("unalz v0.22 (2004/10/27) \n"); // printf("unalz v0.23 (2004/10/30) \n"); // printf("unalz v0.31 (2004/11/27) \n"); // printf("unalz v0.4 (2005/06/18) \n"); // printf("unalz v0.5 (2005/07/09) \n"); // printf("unalz v0.51 (2005/07/24) \n"); // printf("unalz v0.52 (2005/07/27) \n"); // printf("unalz v0.53 (2005/10/15) \n"); // printf("unalz v0.54 (2005/11/21) \n"); // printf("unalz v0.55 (2006/03/10) \n"); // printf("unalz v0.60 (2006/12/31) \n"); // printf("unalz v0.61 (2007/02/10) \n"); // printf("unalz v0.62 (2008/04/04) \n"); // printf("unalz v0.63 (2009/01/09) \n"); // printf("unalz v0.64 (2009/01/20) \n"); printf("unalz v0.65 (2009/04/01) \n"); printf("Copyright(C) 2004-2009 by kippler@gmail.com (http://www.kipple.pe.kr) \n"); } void Usage() { Copyright(); printf("\n"); /* #ifdef _UNALZ_ICONV printf("USAGE : unalz [ -utf8 | -cp949 | -euc-kr ] sourcefile.alz [dest path] \n"); # ifdef _UNALZ_UTF8 printf(" -utf8 : convert filename's codepage to UTF-8 (default)\n"); printf(" -cp949 : convert filename's codepage to CP949\n"); printf(" -euc-kr: convert filename's codepage to EUC-KR\n"); # else printf(" -utf8 : convert filename's codepage to UTF-8\n"); printf(" -cp949 : convert filename's codepage to CP949 (default)\n"); printf(" -euc-kr: convert filename's codepage to EUC-KR\n"); # endif // _UNALZ_UTF8 #else // no iconv printf("USAGE : unalz sourcefile.alz [dest path] \n"); #endif // _UNALZ_ICONV */ printf("Usage : unalz [...] archive.alz [...]\n"); printf("\n"); printf("\n"); #ifdef _UNALZ_ICONV # ifdef _UNALZ_UTF8 printf(" -utf8 : convert filename's codepage to UTF-8 (default)\n"); printf(" -cp949 : convert filename's codepage to CP949\n"); printf(" -euc-kr : convert filename's codepage to EUC-KR\n"); # else printf(" -utf8 : convert filename's codepage to UTF-8\n"); printf(" -cp949 : convert filename's codepage to CP949 (default)\n"); printf(" -euc-kr : convert filename's codepage to EUC-KR\n"); # endif // _UNALZ_UTF8 #endif // _UNALZ_ICONV printf(" -l : list contents of archive\n"); printf(" -d directory : set output directory\n"); printf(" -p : extract files to pipe, no messages\n"); printf(" -pwd : set password\n"); } void UnAlzCallback(const char* szFileName, INT64 nCurrent, INT64 nRange, void* param, BOOL* bHalt) { if(g_bPipeMode) return; // slient #define MSG_BUF_LEN 1024 // progress static char szMessage[MSG_BUF_LEN]={0}; static INT64 nPrevPercent = -1; INT64 percent; // ÆÄÀϸí Ãâ·Â.. if(szFileName) { printf("\n"); #ifdef _WIN32 _snprintf(szMessage, MSG_BUF_LEN, "unalziiiing : %s (%I64dbytes) ", szFileName, nRange); #else snprintf(szMessage, MSG_BUF_LEN, "unalziiiing : %s (%lldbytes) ", szFileName, nRange); #endif printf("%s.", szMessage); fflush(stdout); nPrevPercent = -1; return; } percent = nCurrent*100/nRange; if(nPrevPercent/10==percent/10) return; // ³Ê¹« ÀæÀº ¾÷µ¥ÀÌÆ® ¹æÁö.. nPrevPercent = percent; printf("."); fflush(stdout); } int main(int argc, char* argv[]) { setlocale(LC_ALL, ""); if(argc<2) { Usage(); return 0; } CUnAlz unalz; char* source=NULL; const char* destpath="."; const char* destcodepage=NULL; char* password=NULL; int count; BOOL listMode = FALSE; vector filelist; /* old method for (count=1 ; count < argc && argv[count][0] == '-'; ++count) { #ifdef _UNALZ_ICONV // utf8 ¿É¼Ç ó¸® if(strcmp(argv[count], "-utf8")==0) { destcodepage = "UTF-8"; // utf-8 support } else if(strcmp(argv[count], "-cp949")==0) { destcodepage = "CP949"; // cp949 } else if(strcmp(argv[count], "-euc-kr")==0) { destcodepage = "EUC-KR"; // EUC-KR } else #endif if(strcmp(argv[count], "-l")==0 || strcmp(argv[count], "-list")==0) { listMode = TRUE; } } #ifdef _UNALZ_ICONV if(count>=argc) {Usage();return 0;} // ¿É¼Ç¸¸ ¾²¸é ¾î¼¶ó°í.. if(destcodepage) unalz.SetDestCodepage(destcodepage); #endif // ¼Ò½º ÆÄÀÏ source=argv[count]; count++; // ´ë»ó °æ·Î if(count=argc) {Usage();return 0;} // dest dir ÀÌ Á¤»ó ÁöÁ¤µÇÁö ¾Ê¾Ò´Ù.. destpath = argv[count]; } else if(strcmp(argv[count], "-pwd")==0) // pwd { count++; if(count>=argc) {Usage();return 0;} // dest dir ÀÌ Á¤»ó ÁöÁ¤µÇÁö ¾Ê¾Ò´Ù.. password = argv[count]; } else // ¿É¼ÇÀÌ ¾Æ´Ñ °æ¿ì { if(source==NULL) // ¼Ò½º ÆÄÀÏ °æ·Î { source=argv[count]; } else // ¾ÐÃàÇ® ÆÄÀÏ { filelist.push_back(argv[count]); } } } if(source==NULL) {Usage();return 0;} // ¿É¼Ç¸¸ ¾²¸é ¾î¼¶ó°í.. #ifdef _UNALZ_ICONV if(destcodepage) unalz.SetDestCodepage(destcodepage); #endif if(g_bPipeMode==FALSE) Copyright(); // copyright Ç¥½Ã // pipe mode setting unalz.SetPipeMode(g_bPipeMode); // ÆÄÀÏ ¿­±â if(unalz.Open(source)==FALSE) { if(unalz.GetLastErr()==CUnAlz::ERR_CORRUPTED_FILE) { printf("It's corrupted file.\n"); // ±×³É °è¼Ó Ç®±â.. } else { printf("file open error : %s\n", source); printf("err code(%d) (%s)\n", unalz.GetLastErr(), unalz.GetLastErrStr()); return 0; } } if (listMode) { return ListAlz(&unalz, source); } else { if(unalz.IsEncrypted()) { if(password) // command line À¸·Î ¾ÏÈ£°¡ ÁöÁ¤µÇ¾úÀ» °æ¿ì. { unalz.SetPassword(password); } else { char temp[256]; char pwd[256]; printf("Enter Password : "); fgets(temp,256,stdin); sscanf(temp, "%s\n", pwd); // remove \n unalz.SetPassword(pwd); } } if(g_bPipeMode==FALSE) printf("\nExtract %s to %s\n", source, destpath); // callback ÇÔ¼ö ¼¼Æà unalz.SetCallback(UnAlzCallback, (void*)NULL); if (filelist.empty()==false) // ÆÄÀÏ ÁöÁ¤Çϱâ. { vector::iterator i; for(i=filelist.begin();ic_str())==FALSE) { if(g_bPipeMode==FALSE) printf("filename not matched : %s\n", i->c_str()); } else unalz.ExtractCurrentFile(destpath); } } else // ¸ðµç ÆÄÀÏ ´ÙÇ®±â. { if(unalz.ExtractAll(destpath)==FALSE) { if(g_bPipeMode==FALSE) { printf("\n"); printf("extract %s to %s failed.\n", source, destpath); printf("err code(%d) (%s)\n", unalz.GetLastErr(), unalz.GetLastErrStr()); } } } if(g_bPipeMode==FALSE) printf("\ndone.\n"); } return 0; } unalz/Makefile00007000001040€ÿÿÿÿ0000000510411135226043016120 0ustar Administrators????????CPP = g++ CC = gcc OBJ = main.o UnAlz.o UnAlzUtils.o UnAlzBz2decompress.o UnAlzBzip2.o UnAlzbzlib.o zlib/adler32.o zlib/crc32.o zlib/infback.o zlib/inffast.o zlib/inflate.o zlib/inftrees.o zlib/zutil.o bzip2/blocksort.o bzip2/compress.o bzip2/crctable.o bzip2/huffman.o bzip2/randtable.o BIN = unalz LDFLAGS = CFLAGS = -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 all: @echo "" @echo "USAGE : make TARGET_SYSTEM" @echo "" @echo "" @echo "TARGET_SYSTEM is one of" @echo "" @echo " posix-utf8 : POSIX with utf8 filesystem(Most of modern OS, e.g. OSX/Ubuntu)" @echo " posix : POSIX system (FreeBSD/linux/OSX/sparc/Win32)" @echo " linux-utf8 : LINUX with utf8 filesystem(without -liconv option)" @echo " posix-noiconv : POSIX without libiconv (Windows(MINGW32,CYGWIN) or EUC-KR file system)" @echo "" @echo " 'install' for copy unalz to /usr/local/bin and " @echo " 'clean' for clean" @echo "" posix: unalz $(CPP) -c UnAlz.cpp -c UnAlzUtils.cpp -c main.cpp -D_UNALZ_ICONV $(CFLAGS) $(CPP) $(OBJ) $(LDFLAGS) -liconv -o $(BIN) posix-utf8: unalz $(CPP) -c UnAlz.cpp -c UnAlzUtils.cpp -c main.cpp -D_UNALZ_ICONV -D_UNALZ_UTF8 $(CFLAGS) $(CPP) $(OBJ) $(LDFLAGS) -liconv -o $(BIN) posix-noiconv: unalz $(CPP) -c UnAlz.cpp -c UnAlzUtils.cpp -c main.cpp $(CFLAGS) $(CPP) $(OBJ) $(LDFLAGS) -o $(BIN) linux-utf8: unalz $(CPP) -c UnAlz.cpp -c UnAlzUtils.cpp -c main.cpp -D_UNALZ_ICONV -D_UNALZ_UTF8 $(CFLAGS) $(CPP) $(OBJ) $(LDFLAGS) -o $(BIN) install: cp unalz /usr/local/bin/ clean: rm -f $(OBJ) $(BIN) $(BIN): $(OBJ) zlib/adler32.o: zlib/adler32.c $(CC) -c zlib/adler32.c -o zlib/adler32.o $(CFLAGS) zlib/crc32.o: zlib/crc32.c $(CC) -c zlib/crc32.c -o zlib/crc32.o $(CFLAGS) zlib/infback.o: zlib/infback.c $(CC) -c zlib/infback.c -o zlib/infback.o $(CFLAGS) zlib/inffast.o: zlib/inffast.c $(CC) -c zlib/inffast.c -o zlib/inffast.o $(CFLAGS) zlib/inflate.o: zlib/inflate.c $(CC) -c zlib/inflate.c -o zlib/inflate.o $(CFLAGS) zlib/inftrees.o: zlib/inftrees.c $(CC) -c zlib/inftrees.c -o zlib/inftrees.o $(CFLAGS) zlib/zutil.o: zlib/zutil.c $(CC) -c zlib/zutil.c -o zlib/zutil.o $(CFLAGS) bzip2/blocksort.o: bzip2/blocksort.c $(CC) -c bzip2/blocksort.c -o bzip2/blocksort.o $(CFLAGS) bzip2/compress.o: bzip2/compress.c $(CC) -c bzip2/compress.c -o bzip2/compress.o $(CFLAGS) bzip2/crctable.o: bzip2/crctable.c $(CC) -c bzip2/crctable.c -o bzip2/crctable.o $(CFLAGS) bzip2/huffman.o: bzip2/huffman.c $(CC) -c bzip2/huffman.c -o bzip2/huffman.o $(CFLAGS) bzip2/randtable.o: bzip2/randtable.c $(CC) -c bzip2/randtable.c -o bzip2/randtable.o $(CFLAGS) unalz/Makefile.freebsd00007000001040€ÿÿÿÿ0000000026510261525060017534 0ustar Administrators????????# $FreeBSD$ PROG= unalz NOMAN= SRCS= main.cpp UnAlz.cpp UnAlzBz2decompress.c UnAlzBzip2.cpp UnAlzbzlib.c UnAlzUtils.cpp LDADD+= -lz -lbz2 -liconv -lstdc++ .include unalz/Makefile.win00007000001040€ÿÿÿÿ0000000562410152124422016717 0ustar Administrators????????# Project: unalz # Makefile created by Dev-C++ 4.9.9.0 CPP = g++.exe CC = gcc.exe WINDRES = windres.exe RES = OBJ = main.o UnAlz.o UnAlzBz2decompress.o UnAlzBzip2.o UnAlzbzlib.o bzip2/blocksort.o bzip2/compress.o bzip2/crctable.o bzip2/huffman.o bzip2/randtable.o zlib/adler32.o zlib/crc32.o zlib/infback.o zlib/inffast.o zlib/inflate.o zlib/inftrees.o zlib/zutil.o $(RES) LINKOBJ = main.o UnAlz.o UnAlzBz2decompress.o UnAlzBzip2.o UnAlzbzlib.o bzip2/blocksort.o bzip2/compress.o bzip2/crctable.o bzip2/huffman.o bzip2/randtable.o zlib/adler32.o zlib/crc32.o zlib/infback.o zlib/inffast.o zlib/inflate.o zlib/inftrees.o zlib/zutil.o $(RES) LIBS = -L"C:/Dev-Cpp/lib" -lkernel32 -luser32 -lgdi32 -lwinspool -lcomdlg32 -ladvapi32 -lshell32 -lole32 -loleaut32 -luuid -lodbc32 -lodbccp32 -lkernel32 -luser32 -lgdi32 -lwinspool -lcomdlg32 -ladvapi32 -lshell32 -lole32 -loleaut32 -luuid -lodbc32 -lodbccp32 INCS = -I"C:/Dev-Cpp/include" CXXINCS = -I"C:/Dev-Cpp/include/c++/3.3.1" -I"C:/Dev-Cpp/include/c++/3.3.1/mingw32" -I"C:/Dev-Cpp/include/c++/3.3.1/backward" -I"C:/Dev-Cpp/lib/gcc-lib/mingw32/3.3.1/include" -I"C:/Dev-Cpp/include" BIN = bin/unalz.exe CXXFLAGS = $(CXXINCS) -D__GNUWIN32__ -W -DWIN32 -DNDEBUG -D_CONSOLE -D_MBCS CFLAGS = $(INCS) -D__GNUWIN32__ -W -DWIN32 -DNDEBUG -D_CONSOLE -D_MBCS .PHONY: all all-before all-after clean clean-custom all: all-before bin/unalz.exe all-after clean: clean-custom rm -f $(OBJ) $(BIN) $(BIN): $(OBJ) $(CPP) $(LINKOBJ) -o "bin\unalz.exe" $(LIBS) main.o: main.cpp $(CPP) -c main.cpp -o main.o $(CXXFLAGS) UnAlz.o: UnAlz.cpp $(CPP) -c UnAlz.cpp -o UnAlz.o $(CXXFLAGS) UnAlzBz2decompress.o: UnAlzBz2decompress.c $(CC) -c UnAlzBz2decompress.c -o UnAlzBz2decompress.o $(CFLAGS) UnAlzBzip2.o: UnAlzBzip2.cpp $(CPP) -c UnAlzBzip2.cpp -o UnAlzBzip2.o $(CXXFLAGS) UnAlzbzlib.o: UnAlzbzlib.c $(CC) -c UnAlzbzlib.c -o UnAlzbzlib.o $(CFLAGS) bzip2/blocksort.o: bzip2/blocksort.c $(CC) -c bzip2/blocksort.c -o bzip2/blocksort.o $(CFLAGS) bzip2/compress.o: bzip2/compress.c $(CC) -c bzip2/compress.c -o bzip2/compress.o $(CFLAGS) bzip2/crctable.o: bzip2/crctable.c $(CC) -c bzip2/crctable.c -o bzip2/crctable.o $(CFLAGS) bzip2/huffman.o: bzip2/huffman.c $(CC) -c bzip2/huffman.c -o bzip2/huffman.o $(CFLAGS) bzip2/randtable.o: bzip2/randtable.c $(CC) -c bzip2/randtable.c -o bzip2/randtable.o $(CFLAGS) zlib/adler32.o: zlib/adler32.c $(CC) -c zlib/adler32.c -o zlib/adler32.o $(CFLAGS) zlib/crc32.o: zlib/crc32.c $(CC) -c zlib/crc32.c -o zlib/crc32.o $(CFLAGS) zlib/infback.o: zlib/infback.c $(CC) -c zlib/infback.c -o zlib/infback.o $(CFLAGS) zlib/inffast.o: zlib/inffast.c $(CC) -c zlib/inffast.c -o zlib/inffast.o $(CFLAGS) zlib/inflate.o: zlib/inflate.c $(CC) -c zlib/inflate.c -o zlib/inflate.o $(CFLAGS) zlib/inftrees.o: zlib/inftrees.c $(CC) -c zlib/inftrees.c -o zlib/inftrees.o $(CFLAGS) zlib/zutil.o: zlib/zutil.c $(CC) -c zlib/zutil.c -o zlib/zutil.o $(CFLAGS) unalz/readme.txt00007000001040€ÿÿÿÿ0000000337111135217301016457 0ustar Administrators???????? unalz v0.64 Copyright(C) 2004-2009 by kippler@gmail.com (http://www.kipple.pe.kr) - LICENSE (zlib License) This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. ÀÌ ¼ÒÇÁÆ®¿þ¾î´Â ¾î¶°ÇÑ ¸í½ÃÀû ¶Ç´Â ¹¬½ÃÀû º¸Áõµµ ¾øÀÌ "ÀÖ´Â ±×´ë·Î" Á¦°øµË´Ï´Ù. ±× ¾î¶² °æ¿ì¿¡µµ ÀÛ¼ºÀÚ´Â ÀÌ ¼ÒÇÁÆ®¿þ¾îÀÇ »ç¿ëÀ¸·Î ÀÎÇÑ ¼ÕÇØ¿¡ ´ëÇØ Ã¥ÀÓÀ» ÁöÁö ¾Ê½À´Ï´Ù. ´ÙÀ½ Á¦ÇÑ ±ÔÁ¤À» ÁؼöÇÏ´Â °æ¿ì¿¡ ÇÑÇÏ¿© »ó¾÷ÀûÀÎ ÀÀ¿ë ÇÁ·Î±×·¥À» Æ÷ÇÔÇÏ´Â ¸ðµç ¿ëµµ·Î ÀÌ ¼ÒÇÁÆ®¿þ¾î¸¦ »ç¿ëÇÏ°í ÀÚÀ¯·Ó°Ô ¼öÁ¤ ¹× Àç¹èÆ÷ÇÒ ¼ö ÀÖ´Â ±ÇÇÑÀÌ ´©±¸¿¡°Ô³ª ºÎ¿©µË´Ï´Ù. 1. ÀÌ ¼ÒÇÁÆ®¿þ¾îÀÇ Ãâó¸¦ À߸ø Ç¥½ÃÇϰųª ¿ø·¡ ¼ÒÇÁÆ®¿þ¾î¸¦ ÀÚ½ÅÀÌ ÀÛ¼ºÇß´Ù°í ÁÖÀåÇؼ­´Â ¾È µË´Ï´Ù. Á¦Ç°¿¡ ÀÌ ¼ÒÇÁÆ®¿þ¾î¸¦ »ç¿ëÇÏ´Â °æ¿ì ¿ä±¸ »çÇ×Àº ¾Æ´ÏÁö¸¸ Á¦Ç° ¼³¸í¼­¿¡ ÀÎÁ¤ Á¶Ç×À» ³Ö¾î ÁÖ½Ã¸é °¨»çÇÏ°Ú½À´Ï´Ù. 2. ¼öÁ¤µÈ ¼Ò½º ¹öÀüÀº ¹Ýµå½Ã ¸íÈ®ÇÏ°Ô Ç¥½ÃµÇ¾î¾ß ÇÏ¸ç ¿ø·¡ ¼ÒÇÁÆ®¿þ¾î·Î ¿ÀÀεǵµ·Ï À߸ø Ç¥½ÃÇؼ­´Â ¾È µË´Ï´Ù. 3. ¸ðµç ¼Ò½º ¹èÆ÷ ½Ã ÀÌ °øÁö¸¦ »èÁ¦Çϰųª ¼öÁ¤ÇÒ ¼ö ¾ø½À´Ï´Ù. unalz/UnAlz.cpp00007000001040€ÿÿÿÿ0000014750311164601373016234 0ustar Administrators????????#include "bzip2/bzlib.h" #include "UnAlz.h" #ifdef _WIN32 # include "zlib/zlib.h" #else # include #endif #ifdef _WIN32 # pragma warning( disable : 4996 ) // crt secure warning #endif // utime ÇÔ¼ö ó¸® #if defined(_WIN32) || defined(__CYGWIN__) # include # include #endif #ifdef __GNUC__ # include # include #endif // mkdir #ifdef _WIN32 # include #else # include #endif #ifdef _UNALZ_ICONV // code page support # include #endif #if defined(__linux__) || defined(__GLIBC__) || defined(__GNU__) || defined(__APPLE__) # include #endif #if defined(__NetBSD__) # include // __NetBSD_Version__ # include // iconv.h ¶§¹®¿¡ ÇÊ¿ä #endif #ifdef _WIN32 // safe string ó¸® # include #endif // ENDIAN ó¸® #ifdef _WIN32 // (L) # define swapint64(a) (UINT64) ( (((a)&0x00000000000000FFL) << 56) | (((a)&0x000000000000FF00L) << 40) | (((a)&0x0000000000FF0000L) << 24) | (((a)&0x00000000FF000000L) << 8) | (((a)&0x000000FF00000000L) >> 8) | (((a)&0x0000FF0000000000L) >> 24) | (((a)&0x00FF000000000000L) >> 40) | (((a)&0xFF00000000000000L) >> 56) ) #else // (LL) # define swapint64(a) (UINT64) ( (((a)&0x00000000000000FFLL) << 56) | (((a)&0x000000000000FF00LL) << 40) | (((a)&0x0000000000FF0000LL) << 24) | (((a)&0x00000000FF000000LL) << 8) | (((a)&0x000000FF00000000LL) >> 8) | (((a)&0x0000FF0000000000LL) >> 24) | (((a)&0x00FF000000000000LL) >> 40) | (((a)&0xFF00000000000000LL) >> 56) ) #endif #define swapint32(a) ((((a)&0xff)<<24)+(((a>>8)&0xff)<<16)+(((a>>16)&0xff)<<8)+(((a>>24)&0xff))) #define swapint16(a) (((a)&0xff)<<8)+(((a>>8)&0xff)) typedef UINT16 (*_unalz_le16toh)(UINT16 a); typedef UINT32 (*_unalz_le32toh)(UINT32 a); typedef UINT64 (*_unalz_le64toh)(UINT64 a); static _unalz_le16toh unalz_le16toh=NULL; static _unalz_le32toh unalz_le32toh=NULL; static _unalz_le64toh unalz_le64toh=NULL; static UINT16 le16tole(UINT16 a){return a;} static UINT32 le32tole(UINT32 a){return a;} static UINT64 le64tole(UINT64 a){return a;} static UINT16 le16tobe(UINT16 a){return swapint16(a);} static UINT32 le32tobe(UINT32 a){return swapint32(a);} static UINT64 le64tobe(UINT64 a){return swapint64(a);} #ifndef MAX_PATH # define MAX_PATH 260*6 // ±×³É .. ÃæºÐÈ÷.. #endif #ifdef _WIN32 # define PATHSEP "\\" # define PATHSEPC '\\' #else # define PATHSEP "/" # define PATHSEPC '/' #endif static time_t dosTime2TimeT(UINT32 dostime) // from INFO-ZIP src { struct tm t; t.tm_isdst = -1; t.tm_sec = (((int)dostime) << 1) & 0x3e; t.tm_min = (((int)dostime) >> 5) & 0x3f; t.tm_hour = (((int)dostime) >> 11) & 0x1f; t.tm_mday = (int)(dostime >> 16) & 0x1f; t.tm_mon = ((int)(dostime >> 21) & 0x0f) - 1; t.tm_year = ((int)(dostime >> 25) & 0x7f) + 80; return mktime(&t); } static BOOL IsBigEndian(void) { union { short a; char b[2]; } endian; endian.a = 0x0102; if(endian.b[0] == 0x02) return FALSE; return TRUE; } #ifdef _WIN32 # define safe_sprintf StringCbPrintfA #else # define safe_sprintf snprintf #endif // 64bit file handling support #if (_FILE_OFFSET_BITS==64) # define unalz_fseek fseeko # define unalz_ftell ftello #else # define unalz_fseek fseek # define unalz_ftell ftell #endif // error string table <- CUnAlz::ERR ÀÇ ¹ø¿ª static const char* errorstrtable[]= { "no error", // ERR_NOERR "general error", // ERR_GENERAL "can't open archive file", // ERR_CANT_OPEN_FILE "can't open dest file or path", // ERR_CANT_OPEN_DEST_FILE // "can't create dest path", // ERR_CANT_CREATE_DEST_PATH "corrupted file", // ERR_CORRUPTED_FILE "not alz file", // ERR_NOT_ALZ_FILE "can't read signature", // ERR_CANT_READ_SIG "can't read file", // ERR_CANT_READ_FILE "error at read header", // ERR_AT_READ_HEADER "invalid filename length", // ERR_INVALID_FILENAME_LENGTH "invalid extrafield length", // ERR_INVALID_EXTRAFIELD_LENGTH, "can't read central directory structure head", // ERR_CANT_READ_CENTRAL_DIRECTORY_STRUCTURE_HEAD, "invalid filename size", // ERR_INVALID_FILENAME_SIZE, "invalid extrafield size", // ERR_INVALID_EXTRAFIELD_SIZE, "invalid filecomment size", // ERR_INVALID_FILECOMMENT_SIZE, "cant' read header", // ERR_CANT_READ_HEADER, "memory allocation failed", // ERR_MEM_ALLOC_FAILED, "file read error", // ERR_FILE_READ_ERROR, "inflate failed", // ERR_INFLATE_FAILED, "bzip2 decompress failed", // ERR_BZIP2_FAILED, "invalid file CRC", // ERR_INVALID_FILE_CRC "unknown compression method", // ERR_UNKNOWN_COMPRESSION_METHOD "iconv-can't open iconv", // ERR_ICONV_CANT_OPEN, "iconv-invalid multisequence of characters", // ERR_ICONV_INVALID_MULTISEQUENCE_OF_CHARACTERS, "iconv-incomplete multibyte sequence", // ERR_ICONV_INCOMPLETE_MULTIBYTE_SEQUENCE, "iconv-not enough space of buffer to convert", // ERR_ICONV_NOT_ENOUGH_SPACE_OF_BUFFER_TO_CONVERT, "iconv-etc", // ERR_ICONV_ETC, "password was not set", // ERR_PASSWD_NOT_SET, "invalid password", // ERR_INVALID_PASSWD, "user aborted", }; //////////////////////////////////////////////////////////////////////////////////////////////////// /// ctor /// @date 2004-03-06 ¿ÀÈÄ 11:19:49 //////////////////////////////////////////////////////////////////////////////////////////////////// CUnAlz::CUnAlz() { memset(m_files, 0, sizeof(m_files)); m_nErr = ERR_NOERR; m_posCur = m_fileList.end();//(FileList::iterator)NULL; m_pFuncCallBack = NULL; m_pCallbackParam = NULL; m_bHalt = FALSE; m_nFileCount = 0; m_nCurFile = -1; m_nVirtualFilePos = 0; m_nCurFilePos = 0; m_bIsEOF = FALSE; m_bIsEncrypted = FALSE; m_bIsDataDescr = FALSE; m_bPipeMode = FALSE; #ifdef _UNALZ_ICONV #ifdef _UNALZ_UTF8 safe_strcpy(m_szToCodepage, "UTF-8",UNALZ_LEN_CODEPAGE) ; // ±âº»ÀûÀ¸·Î utf-8 #else safe_strcpy(m_szToCodepage, "CP949",UNALZ_LEN_CODEPAGE) ; // ±âº»ÀûÀ¸·Î CP949 #endif // _UNALZ_UTF8 safe_strcpy(m_szFromCodepage, "CP949",UNALZ_LEN_CODEPAGE); // alz ´Â 949 ¸¸ Áö¿ø #endif // _UNALZ_ICONV // check endian if(unalz_le16toh==NULL) { if(IsBigEndian()) { unalz_le16toh = le16tobe; unalz_le32toh = le32tobe; unalz_le64toh = le64tobe; } else { unalz_le16toh = le16tole; unalz_le32toh = le32tole; unalz_le64toh = le64tole; } } } //////////////////////////////////////////////////////////////////////////////////////////////////// /// dtor /// @date 2004-03-06 ¿ÀÈÄ 11:19:52 //////////////////////////////////////////////////////////////////////////////////////////////////// CUnAlz::~CUnAlz() { Close(); } //////////////////////////////////////////////////////////////////////////////////////////////////// /// progress callback func setting /// @date 2004-03-01 ¿ÀÀü 6:02:05 //////////////////////////////////////////////////////////////////////////////////////////////////// void CUnAlz::SetCallback(_UnAlzCallback* pFunc, void* param) { m_pFuncCallBack = pFunc; m_pCallbackParam = param; } #ifdef _WIN32 #if !defined(__GNUWIN32__) && !defined(__GNUC__) //////////////////////////////////////////////////////////////////////////////////////////////////// /// ÆÄÀÏ ¿­±â /// @param szPathName /// @return /// @date 2004-03-06 ¿ÀÈÄ 11:03:59 //////////////////////////////////////////////////////////////////////////////////////////////////// BOOL CUnAlz::Open(LPCWSTR szPathName) { char szPathNameA[MAX_PATH]; ::WideCharToMultiByte(CP_ACP, 0, szPathName, -1, szPathNameA, MAX_PATH, NULL, NULL); return Open(szPathNameA); } //////////////////////////////////////////////////////////////////////////////////////////////////// /// ´ë»ó ÆÄÀÏ ¼¼ÆÃÇϱâ. /// @param szFileName /// @return /// @date 2004-03-06 ¿ÀÈÄ 11:06:20 //////////////////////////////////////////////////////////////////////////////////////////////////// BOOL CUnAlz::SetCurrentFile(LPCWSTR szFileName) { char szFileNameA[MAX_PATH]; ::WideCharToMultiByte(CP_ACP, 0, szFileName, -1, szFileNameA, MAX_PATH, NULL, NULL); return SetCurrentFile(szFileNameA); } BOOL CUnAlz::IsFolder(LPCWSTR szPathName) { UINT32 dwRet; dwRet = GetFileAttributesW(szPathName); if(dwRet==0xffffffff) return FALSE; if(dwRet & FILE_ATTRIBUTE_DIRECTORY) return TRUE; return FALSE; } #endif // __GNUWIN32__ #endif // _WIN32 BOOL CUnAlz::Open(const char* szPathName) { if(FOpen(szPathName)==FALSE) { m_nErr = ERR_CANT_OPEN_FILE; return FALSE; } BOOL bValidAlzHeader = FALSE; // file ºÐ¼®½ÃÀÛ.. for(;;) { SIGNATURE sig; BOOL ret; if(FEof()) break; //int pos = unalz_ftell(m_fp); sig = ReadSignature(); if(sig==SIG_EOF) { break; } if(sig==SIG_ERROR) { if(bValidAlzHeader) m_nErr = ERR_CORRUPTED_FILE; // ¼Õ»óµÈ ÆÄÀÏ else m_nErr = ERR_NOT_ALZ_FILE; // alz ÆÄÀÏÀÌ ¾Æ´Ï´Ù. return FALSE; // ±úÁø ÆÄÀÏ.. } if(sig==SIG_ALZ_FILE_HEADER) { ret = ReadAlzFileHeader(); bValidAlzHeader = TRUE; // alz ÆÄÀÏÀº ¸Â´Ù. } else if(sig==SIG_LOCAL_FILE_HEADER) ret = ReadLocalFileheader(); else if(sig==SIG_CENTRAL_DIRECTORY_STRUCTURE) ret = ReadCentralDirectoryStructure(); else if(sig==SIG_ENDOF_CENTRAL_DIRECTORY_RECORD) ret = ReadEndofCentralDirectoryRecord(); else { // ¹Ì±¸ÇöµÈ signature ? ±úÁø ÆÄÀÏ ? ASSERT(0); m_nErr = ERR_CORRUPTED_FILE; return FALSE; } if(ret==FALSE) { return FALSE; } if(FEof()) break; } return TRUE; } //////////////////////////////////////////////////////////////////////////////////////////////////// /// ÆÄÀÏ ´Ý±â.. /// @return /// @date 2004-03-06 ¿ÀÈÄ 11:04:21 //////////////////////////////////////////////////////////////////////////////////////////////////// void CUnAlz::Close() { FClose(); // ¸ñ·Ï ³¯¸®±â.. FileList::iterator i; for(i=m_fileList.begin(); iClear(); } m_posCur = m_fileList.end();//(FileList::iterator)NULL; } //////////////////////////////////////////////////////////////////////////////////////////////////// /// FILE ³»ÀÇ SIGNATURE Àбâ /// @return /// @date 2004-03-06 ¿ÀÈÄ 11:04:47 //////////////////////////////////////////////////////////////////////////////////////////////////// CUnAlz::SIGNATURE CUnAlz::ReadSignature() { UINT32 dwSig; if(FRead(&dwSig, sizeof(dwSig))==FALSE) { if(FEof()) return SIG_EOF; m_nErr = ERR_CANT_READ_SIG; return SIG_ERROR; } return (SIGNATURE)unalz_le32toh(dwSig); // little to host; } //////////////////////////////////////////////////////////////////////////////////////////////////// /// ALZ HEADER SIGNATURE Àбâ /// @return /// @date 2004-03-06 ¿ÀÈÄ 11:05:11 //////////////////////////////////////////////////////////////////////////////////////////////////// BOOL CUnAlz::ReadAlzFileHeader() { SAlzHeader header; if(FRead(&header, sizeof(header))==FALSE) { ASSERT(0); m_nErr = ERR_CANT_READ_FILE; return FALSE; } return TRUE; } //////////////////////////////////////////////////////////////////////////////////////////////////// /// °¢°¢ÀÇ ÆÄÀÏ Çì´õ Àбâ /// @return /// @date 2004-03-06 ¿ÀÈÄ 11:05:18 //////////////////////////////////////////////////////////////////////////////////////////////////// BOOL CUnAlz::ReadLocalFileheader() { SAlzLocalFileHeader zipHeader; int ret; ret = FRead(&(zipHeader.head), sizeof(zipHeader.head)); if(ret==FALSE) { m_nErr = ERR_AT_READ_HEADER; return FALSE; } // ALZ È®Àå.. if( (zipHeader.head.fileDescriptor & (SHORT)1) != 0){ m_bIsEncrypted = TRUE; // Çϳª¶óµµ ¾ÏÈ£ °É·ÈÀ¸¸é ¼¼ÆÃÇÑ´Ù. } if( (zipHeader.head.fileDescriptor & (SHORT)8) != 0){ m_bIsDataDescr = TRUE; } int byteLen = zipHeader.head.fileDescriptor/0x10; if(byteLen) { FRead(&(zipHeader.compressionMethod), sizeof(zipHeader.compressionMethod)); FRead(&(zipHeader.unknown), sizeof(zipHeader.unknown)); FRead(&(zipHeader.fileCRC), sizeof(zipHeader.fileCRC)); FRead(&(zipHeader.compressedSize), byteLen); FRead(&(zipHeader.uncompressedSize), byteLen); // ¾ÐÃà »çÀÌÁî°¡ ¾ø´Ù. } // little to system zipHeader.fileCRC = unalz_le32toh(zipHeader.fileCRC); zipHeader.head.fileNameLength = unalz_le16toh(zipHeader.head.fileNameLength); zipHeader.compressedSize = unalz_le64toh(zipHeader.compressedSize); zipHeader.uncompressedSize = unalz_le64toh(zipHeader.uncompressedSize); // FILE NAME zipHeader.fileName = (char*)malloc(zipHeader.head.fileNameLength+sizeof(char)); if(zipHeader.fileName==NULL) { m_nErr = ERR_INVALID_FILENAME_LENGTH; return FALSE; } FRead(zipHeader.fileName, zipHeader.head.fileNameLength); if(zipHeader.head.fileNameLength > MAX_PATH - 5) zipHeader.head.fileNameLength = MAX_PATH - 5; zipHeader.fileName[zipHeader.head.fileNameLength] = (CHAR)NULL; #ifdef _UNALZ_ICONV // codepage convert if(strlen(m_szToCodepage)) { #define ICONV_BUF_SIZE (260*6) // utf8 Àº ÃÖ´ë 6byte size_t ileft, oleft; iconv_t cd; size_t iconv_result; size_t size; char inbuf[ICONV_BUF_SIZE]; char outbuf[ICONV_BUF_SIZE]; #if defined(__FreeBSD__) || defined(__CYGWIN__) || defined(__NetBSD__) const char *inptr = inbuf; #else char *inptr = inbuf; #endif char *outptr = outbuf; size = strlen(zipHeader.fileName)+1; strncpy(inbuf, zipHeader.fileName, size); ileft = size; oleft = sizeof(outbuf); cd = iconv_open(m_szToCodepage, m_szFromCodepage); // º¸Åë "CP949" ¿¡¼­ "UTF-8" ·Î iconv(cd, NULL, NULL, NULL, NULL); if( cd == (iconv_t)(-1)) { m_nErr = ERR_ICONV_CANT_OPEN; // printf("Converting Error : Cannot open iconv"); return FALSE; } else { iconv_result = iconv(cd, &inptr, &ileft, &outptr, &oleft); if(iconv_result== (size_t)(-1)) // iconv ½ÇÆÐ.. { if (errno == EILSEQ) m_nErr = ERR_ICONV_INVALID_MULTISEQUENCE_OF_CHARACTERS; // printf("Invalid Multibyte Sequence of Characters"); else if (errno == EINVAL) m_nErr = ERR_ICONV_INCOMPLETE_MULTIBYTE_SEQUENCE; //printf("Incomplete multibyte sequence"); else if (errno != E2BIG) m_nErr = ERR_ICONV_NOT_ENOUGH_SPACE_OF_BUFFER_TO_CONVERT; // printf("Not enough space of buffer to convert"); else m_nErr = ERR_ICONV_ETC; iconv_close(cd); return FALSE; } else { outbuf[ICONV_BUF_SIZE-oleft] = 0; if(zipHeader.fileName) free(zipHeader.fileName); zipHeader.fileName = strdup(outbuf); if (zipHeader.fileName == NULL) { m_nErr = ERR_ICONV_ETC; iconv_close(cd); return FALSE; } // printf("\n Converted File Name : %s", outbuf); } iconv_close(cd); } } #endif /* // EXTRA FIELD LENGTH if(zipHeader.head.extraFieldLength) { zipHeader.extraField = (BYTE*)malloc(zipHeader.head.extraFieldLength); if(zipHeader.extraField==NULL) { m_nErr = ERR_INVALID_EXTRAFIELD_LENGTH; return FALSE; } FRead(zipHeader.extraField, 1, zipHeader.head.extraFieldLength); } */ if(IsEncryptedFile(zipHeader.head.fileDescriptor)) FRead(zipHeader.encChk, ALZ_ENCR_HEADER_LEN); // xf86 // SKIP FILE DATA zipHeader.dwFileDataPos = FTell(); // data ÀÇ À§Ä¡ ÀúÀåÇϱâ.. FSeek(FTell()+zipHeader.compressedSize); // DATA DESCRIPTOR /* if(zipHeader.head.generalPurposeBitFlag.bit1) { FRead(zipHeader.extraField, 1, sizeof(zipHeader.extraField),); } */ /* #ifdef _DEBUG printf("NAME:%s COMPRESSED SIZE:%d UNCOMPRESSED SIZE:%d COMP METHOD:%d\n", zipHeader.fileName, zipHeader.compressedSize, zipHeader.uncompressedSize, zipHeader.compressionMethod ); #endif */ // ÆÄÀÏÀ» ¸ñ·Ï¿¡ Ãß°¡ÇÑ´Ù.. m_fileList.push_back(zipHeader); return TRUE; } BOOL CUnAlz::ReadCentralDirectoryStructure() { SCentralDirectoryStructure header; if(FRead(&header, sizeof(header.head))==FALSE) { m_nErr = ERR_CANT_READ_CENTRAL_DIRECTORY_STRUCTURE_HEAD; return FALSE; } /* // read file name if(header.head.fileNameLength) { header.fileName = (char*)malloc(header.head.fileNameLength+1); if(header.fileName==NULL) { m_nErr = ERR_INVALID_FILENAME_SIZE; return FALSE; } FRead(header.fileName, 1, header.head.fileNameLength, m_fp); header.fileName[header.head.fileNameLength] = NULL; } // extra field; if(header.head.extraFieldLength) { header.extraField = (BYTE*)malloc(header.head.extraFieldLength); if(header.extraField==NULL) { m_nErr = ERR_INVALID_EXTRAFIELD_SIZE; return FALSE; } FRead(header.extraField, 1, header.head.extraFieldLength, m_fp); } // file comment; if(header.head.fileCommentLength) { header.fileComment = (char*)malloc(header.head.fileCommentLength+1); if(header.fileComment==NULL) { m_nErr = ERR_INVALID_FILECOMMENT_SIZE; return FALSE; } FRead(header.fileComment, 1, header.head.fileCommentLength, m_fp); header.fileComment[header.head.fileCommentLength] = NULL; } */ return TRUE; } BOOL CUnAlz::ReadEndofCentralDirectoryRecord() { /* SEndOfCentralDirectoryRecord header; if(FRead(&header, sizeof(header.head), 1, m_fp)!=1) { m_nErr = ERR_CANT_READ_HEADER; return FALSE; } if(header.head.zipFileCommentLength) { header.fileComment = (char*)malloc(header.head.zipFileCommentLength+1); if(header.fileComment==NULL) { m_nErr = ERR_INVALID_FILECOMMENT_SIZE; return FALSE; } FRead(header.fileComment, 1, header.head.zipFileCommentLength, m_fp); header.fileComment[header.head.zipFileCommentLength] = NULL; } */ return TRUE; } BOOL CUnAlz::SetCurrentFile(const char* szFileName) { FileList::iterator i; // ¼øÂ÷ÀûÀ¸·Î ã´Â´Ù. for(i=m_fileList.begin(); ifileName, szFileName)==0) #else if(strcmp(i->fileName, szFileName)==0) #endif { m_posCur = i; return TRUE; } } m_posCur = m_fileList.end();//(FileList::iterator)NULL; return FALSE; } void CUnAlz::SetCurrentFile(FileList::iterator newPos) { m_posCur = newPos; } #ifndef MAX_WBITS # define MAX_WBITS 15 /* 32K LZ77 window */ #endif //////////////////////////////////////////////////////////////////////////////////////////////////// /// ¹öÆÛ¿¡ ¾ÐÃà Ç®±â. ¹öÆÛ´Â ´ç±Ù ÃæºÐÇÑ Å©±â°¡ ÁغñµÇ¾î ÀÖ¾î¾ß ÇÑ´Ù. /// @param pDestBuf /// @return /// @date 2004-03-07 ¿ÀÀü 12:26:13 //////////////////////////////////////////////////////////////////////////////////////////////////// BOOL CUnAlz::ExtractCurrentFileToBuf(BYTE* pDestBuf, int nBufSize) { SExtractDest dest; dest.nType = ET_MEM; dest.buf = pDestBuf; dest.bufpos = 0; dest.bufsize = nBufSize; return ExtractTo(&dest); } //////////////////////////////////////////////////////////////////////////////////////////////////// /// ÇöÀç ÆÄÀÏ (SetCurrentFile·Î Áö)À» ´ë»ó °æ·Î¿¡ ´ë»ó ÆÄÀϷΠǬ´Ù. /// @param szDestPathName - ´ë»ó °æ·Î /// @param szDestFileName - ´ë»ó ÆÄÀϸí, NULL ÀÌ¸é ¿ø·¡ ÆÄÀÏ¸í »ç¿ë /// @return /// @date 2004-03-06 ¿ÀÈÄ 11:06:59 //////////////////////////////////////////////////////////////////////////////////////////////////// BOOL CUnAlz::ExtractCurrentFile(const char* szDestPathName, const char* szDestFileName) { if(m_posCur==m_fileList.end()/*(FileList::iterator)NULL*/) {ASSERT(0); return FALSE;} BOOL ret=FALSE; SExtractDest dest; char szDestPathFileName[MAX_PATH]; if(chkValidPassword() == FALSE) { return FALSE; } if( szDestPathName==NULL|| strlen(szDestPathName) + (szDestFileName?strlen(szDestFileName):strlen(m_posCur->fileName))+1 > MAX_PATH ) // check buffer overflow { ASSERT(0); m_nErr = ERR_GENERAL; return FALSE; } // °æ·Î¸í safe_strcpy(szDestPathFileName, szDestPathName, MAX_PATH); if(szDestPathFileName[strlen(szDestPathFileName)]!=PATHSEPC) safe_strcat(szDestPathFileName, PATHSEP, MAX_PATH); // ÆÄÀϸí if(szDestFileName) safe_strcat(szDestPathFileName, szDestFileName, MAX_PATH); else safe_strcat(szDestPathFileName, m_posCur->fileName, MAX_PATH); // ../../ Çü½ÄÀÇ º¸¾È ¹ö±× È®ÀÎ if( strstr(szDestPathFileName, "../")|| strstr(szDestPathFileName, "..\\")) { ASSERT(0); m_nErr = ERR_GENERAL; return FALSE; } #ifndef _WIN32 { char* p = szDestPathFileName; // °æ·Î delimiter ¹Ù²Ù±â while(*p) { if(*p=='\\') *p='/'; p++; } } #endif // ¾ÐÃàÇ® ´ë»ó ( ÆÄÀÏ ) dest.nType = ET_FILE; if(m_bPipeMode) dest.fp = stdout; // pipe mode ÀÏ °æ¿ì stdout Ãâ·Â else dest.fp = fopen(szDestPathFileName, "wb"); // ŸÀÔÀÌ Æú´õÀÏ °æ¿ì.. if(m_bPipeMode==FALSE && (m_posCur->head.fileAttribute) & ALZ_FILEATTR_DIRECTORY ) { //printf("digpath:%s\n", szDestPathFileName); // °æ·ÎÆıâ DigPath(szDestPathFileName); return TRUE; // m_nErr = ERR_CANT_CREATE_DEST_PATH; // return FALSE; } // ÆÄÀÏ ¿­±â ½ÇÆнà - °æ·Î¸¦ Æĺ»´Ù if(dest.fp==NULL) { DigPath(szDestPathFileName); dest.fp = fopen(szDestPathFileName, "wb"); } // ±×·¡µµ ÆÄÀÏ¿­±â ½ÇÆнÃ. if(dest.fp==NULL) { // ´ë»ó ÆÄÀÏ ¿­±â ½ÇÆÐ m_nErr = ERR_CANT_OPEN_DEST_FILE; //printf("dest pathfilename:%s\n",szDestPathFileName); if(m_pFuncCallBack) { // CHAR buf[1024]; // sprintf(buf, "ÆÄÀÏ ¿­±â ½ÇÆÐ : %s", szDestPathFileName); // m_pFuncCallBack(buf, 0,0,m_pCallbackParam, NULL); } return FALSE; } //#endif // CALLBACK ¼¼Æà if(m_pFuncCallBack) m_pFuncCallBack(m_posCur->fileName, 0,m_posCur->uncompressedSize,m_pCallbackParam, NULL); ret = ExtractTo(&dest); if(dest.fp!=NULL) { fclose(dest.fp); // file time setting - from unalz_wcx_01i.zip utimbuf tmp; tmp.actime = 0; // ¸¶Áö¸· ¿¢¼¼½º ŸÀÓ tmp.modtime = dosTime2TimeT(m_posCur->head.fileTimeDate); // ¸¶Áö¸· ¼öÁ¤ÀÏÀÚ¸¸ º¯°æ(¸¸µç ³¯ÀÚ´Â ¾î¶»°Ô ¹Ù²ÙÁö?) utime(m_posCur->fileName, &tmp); } return ret; } //////////////////////////////////////////////////////////////////////////////////////////////////// /// ´ë»ó¿¡ ¾ÐÃà Ç®±â.. /// @param dest /// @return /// @date 2004-03-07 ¿ÀÀü 12:44:36 //////////////////////////////////////////////////////////////////////////////////////////////////// BOOL CUnAlz::ExtractTo(SExtractDest* dest) { BOOL ret = FALSE; // ¾ÐÃà ¹æ¹ý¿¡ µû¶ó¼­ ¾ÐÃà Ç®±â if(m_posCur->compressionMethod==COMP_NOCOMP) { ret = ExtractRawfile(dest, *m_posCur); } else if(m_posCur->compressionMethod==COMP_BZIP2) { ret = ExtractBzip2(dest, *m_posCur); // bzip2 } else if(m_posCur->compressionMethod==COMP_DEFLATE) { ret = ExtractDeflate2(dest, *m_posCur); // deflate } else // COMP_UNKNOWN { // alzip 5.6 ºÎÅÍ Ãß°¡µÈ Æ÷¸Ë(5.5 ¿¡¼­´Â Ç®Áö ¸øÇÑ´Ù. ¿µ¹® 5.51 Àº Ǭ´Ù ) // ÇÏÁö¸¸ ¾î¶² ¹öÀü¿¡¼­ ÀÌ Æ÷¸ËÀ» ¸¸µé¾î ³»´ÂÁö Á¤È®È÷ ¾Ë ¼ö ¾ø´Ù. // °ø½ÄÀ¸·Î ¸±¸®ÁîµÈ ¾ËÁýÀº ÀÌ Æ÷¸ËÀ» ¸¸µé¾î³»Áö ¾Ê´Â´Ù. ºñ°ø½Ä(º£Å¸?)À¸·Î ¹èÆ÷µÈ ¹öÀü¿¡¼­¸¸ ÀÌ Æ÷¸ËÀ» ¸¸µé¾î³½´Ù. m_nErr = ERR_UNKNOWN_COMPRESSION_METHOD; ASSERT(0); ret = FALSE; } return ret; } //////////////////////////////////////////////////////////////////////////////////////////////////// /// DEFLATE ·Î Ç®±â - Å×½ºÆ®¿ë ÇÔ¼ö. ¸ðµç ÆÄÀÏÀ» ÇѲ¨¹ø¿¡ Àо Ǭ´Ù. ½ÇÁ¦ »ç¿ë ¾ÈÇÔ. /// @param fp - ´ë»ó ÆÄÀÏ /// @param file - ¼Ò½º ÆÄÀÏ Á¤º¸ /// @return /// @date 2004-03-06 ¿ÀÈÄ 11:09:17 //////////////////////////////////////////////////////////////////////////////////////////////////// /* BOOL CUnAlz::ExtractDeflate(FILE* fp, SAlzLocalFileHeader& file) { z_stream stream; BYTE* pInBuf=NULL; BYTE* pOutBuf=NULL; int nInBufSize = file.compressedSize; int nOutBufSize = file.uncompressedSize; int err; int flush=Z_SYNC_FLUSH; BOOL ret = FALSE; memset(&stream, 0, sizeof(stream)); pInBuf = (BYTE*)malloc(nInBufSize); if(pInBuf==NULL) { m_nErr = ERR_MEM_ALLOC_FAILED; goto END; } pOutBuf = (BYTE*)malloc(nOutBufSize); if(pOutBuf==NULL) { m_nErr = ERR_MEM_ALLOC_FAILED; goto END; } // Çѹø¿¡ Àо fseek(m_fp, file.dwFileDataPos, SEEK_SET); if(FRead(pInBuf, nInBufSize, 1, m_fp)!=1) { m_nErr = ERR_FILE_READ_ERROR; goto END; } // ÃʱâÈ­.. inflateInit2(&stream, -MAX_WBITS); stream.next_out = pOutBuf; stream.avail_out = nOutBufSize; stream.next_in = pInBuf; stream.avail_in = nInBufSize; err = inflate(&stream, flush); if(err!=Z_OK && err!=Z_STREAM_END ) { m_nErr = ERR_INFLATE_FAILED; goto END; } fwrite(pOutBuf, 1, nOutBufSize, fp); ret = TRUE; END : inflateEnd(&stream); if(pInBuf) free(pInBuf); if(pOutBuf) free(pOutBuf); return ret; } */ //////////////////////////////////////////////////////////////////////////////////////////////////// /// ´ë»ó Æú´õ¿¡ ÇöÀç ¾ÐÃàÆÄÀÏÀ» ÀüºÎ Ç®±â /// @param szDestPathName - ´ë»ó °æ·Î /// @return /// @date 2004-03-06 ¿ÀÈÄ 11:09:49 //////////////////////////////////////////////////////////////////////////////////////////////////// BOOL CUnAlz::ExtractAll(const char* szDestPathName) { FileList::iterator i; for(i=m_fileList.begin(); inType==ET_FILE) { return fwrite(buf, 1, nSize, dest->fp); } else if(dest->nType==ET_MEM) { if(dest->buf==NULL) return nSize; // ´ë»óÀÌ NULL ÀÌ´Ù... ¾ÐÃàǪ´Â ½Ã´¿¸¸ ÇÑ´Ù.. if(dest->bufpos+nSize >dest->bufsize) // ¿¡·¯.. ¹öÆÛ°¡ ³ÑÃÆ´Ù. { ASSERT(0); return -1; } // memcpy memcpy(dest->buf + dest->bufpos, buf, nSize); dest->bufpos += nSize; return nSize; } else { ASSERT(0); } return -1; } /* ½ÇÆÐÇÑ ¹æ¹ý.. °í»ýÇÑ°Ô ¾Æ±î¿ö¼­ ¸øÁö¿ò. #define ALZDLZ_HEADER_SIZE 4 // alz ÆÄÀÏÀÇ bzip2 Çì´õ Å©±â #define BZIP2_HEADER_SIZE 10 // bzip ÆÄÀÏÀÇ Çì´õ Å©±â #define BZIP2_CRC_SIZE 4 // bzip2 ÀÇ crc #define BZIP2_TAIL_SIZE 10 // ´ëÃæ 4+5 Á¤µµ.? BYTE bzip2Header[BZIP2_HEADER_SIZE] = {0x42, 0x5a, 0x68, 0x39, 0x31, 0x41, 0x59, 0x26, 0x53, 0x59}; BOOL CUnAlz::ExtractBzip2_bak(FILE* fp, SAlzLocalFileHeader& file) { bz_stream stream; BYTE* pInBuf=NULL; BYTE* pOutBuf=NULL; int nInBufSize = file.compressedSize; int nOutBufSize = file.uncompressedSize; //int err; int flush=Z_SYNC_FLUSH; BOOL ret = FALSE; UINT32 crc = 0xffffffff; //BYTE temp[100]; memset(&stream, 0, sizeof(stream)); pInBuf = (BYTE*)malloc(nInBufSize + BZIP2_HEADER_SIZE + BZIP2_CRC_SIZE - ALZDLZ_HEADER_SIZE + BZIP2_TAIL_SIZE); if(pInBuf==NULL) { m_nErr = ERR_MEM_ALLOC_FAILED; goto END; } pOutBuf = (BYTE*)malloc(nOutBufSize); if(pOutBuf==NULL) { m_nErr = ERR_MEM_ALLOC_FAILED; goto END; } // ALZ ÀÇ BZIP Çì´õ ("DLZ.") ½ºÅµÇϱâ. fseek(m_fp, ALZDLZ_HEADER_SIZE, SEEK_CUR); // BZIP2 Çì´õ »ðÀÔ memcpy(pInBuf, bzip2Header, BZIP2_HEADER_SIZE); // BZIP2 CRC memcpy(pInBuf+BZIP2_HEADER_SIZE, &(crc), BZIP2_CRC_SIZE); // ÁøÂ¥ ¾ÐÃàµÈ µ¥ÀÌŸ¸¦ Çѹø¿¡ Àо fseek(m_fp, file.dwFileDataPos+ALZDLZ_HEADER_SIZE, SEEK_SET); if(FRead(pInBuf+BZIP2_HEADER_SIZE+BZIP2_CRC_SIZE, nInBufSize-ALZDLZ_HEADER_SIZE, 1, m_fp)!=1) { m_nErr = ERR_FILE_READ_ERROR; goto END; } // ÃʱâÈ­.. stream.bzalloc = NULL; stream.bzfree = NULL; stream.opaque = NULL; ret = BZ2_bzDecompressInit ( &stream, 3,0 ); if (ret != BZ_OK) goto END; //memcpy(temp, pInBuf, 100); stream.next_in = (char*)pInBuf; stream.next_out = (char*)pOutBuf; stream.avail_in = nInBufSize+BZIP2_HEADER_SIZE+BZIP2_CRC_SIZE+BZIP2_TAIL_SIZE; stream.avail_out = nOutBufSize; ret = BZ2_bzDecompress ( &stream ); // BZ_DATA_ERROR °¡ ¸®Å쵃 ¼ö ÀÖ´Ù.. //if (ret == BZ_OK) goto END; //if (ret != BZ_STREAM_END) goto END; BZ2_bzDecompressEnd(&stream); fwrite(pOutBuf, 1, nOutBufSize, fp); ret = TRUE; END : if(pInBuf) free(pInBuf); if(pOutBuf) free(pOutBuf); if(ret==FALSE) BZ2_bzDecompressEnd(&stream); return ret; } */ //////////////////////////////////////////////////////////////////////////////////////////////////// /// RAW ·Î ¾ÐÃàµÈ ÆÄÀÏ Ç®±â /// @param fp - ´ë»ó ÆÄÀÏ /// @param file - ¼Ò½º ÆÄÀÏ /// @return /// @date 2004-03-06 ¿ÀÈÄ 11:10:53 //////////////////////////////////////////////////////////////////////////////////////////////////// #define BUF_LEN (4096*2) BOOL CUnAlz::ExtractRawfile(SExtractDest* dest, SAlzLocalFileHeader& file) { BOOL ret = FALSE; BYTE buf[BUF_LEN]; INT64 read; INT64 sizeToRead; INT64 bufLen = BUF_LEN; INT64 nWritten = 0; BOOL bHalt = FALSE; BOOL bIsEncrypted = IsEncryptedFile(); // ¾ÏÈ£°É¸° ÆÄÀÏÀΰ¡? UINT32 dwCRC32= 0; // À§Ä¡ Àâ°í. FSeek(file.dwFileDataPos); sizeToRead = file.compressedSize; // ÀÐÀ» Å©±â. m_nErr = ERR_NOERR; while(sizeToRead) { read = min(sizeToRead, bufLen); if(FRead(buf, (int)read)==FALSE) { break; } if(bIsEncrypted) DecryptingData((int)read, buf); // xf86 dwCRC32 = crc32(dwCRC32, buf, (UINT)(read)); WriteToDest(dest, buf, (int)read); //fwrite(buf, read, 1, fp); sizeToRead -= read; nWritten+=read; // progress callback if(m_pFuncCallBack) { m_pFuncCallBack(NULL, nWritten, file.uncompressedSize, m_pCallbackParam, &bHalt); if(bHalt) { break; } } } m_bHalt = bHalt; if(m_nErr==ERR_NOERR) // ¼º°øÀûÀ¸·Î ¾ÐÃàÀ» Ç®¾ú´Ù.. CRC °Ë»çÇϱâ.. { if(file.fileCRC==dwCRC32) { ret = TRUE; } else { m_nErr = ERR_INVALID_FILE_CRC; } } return ret; } //////////////////////////////////////////////////////////////////////////////////////////////////// /// BZIP2 ¾ÐÃà Ç®±â.. /// @param fp_w - ´ë»ó ÆÄÀÏ /// @param file - ¼Ò½º ÆÄÀÏ Á¤º¸ /// @return /// @date 2004-03-01 ¿ÀÀü 5:47:36 //////////////////////////////////////////////////////////////////////////////////////////////////// #define BZIP2_EXTRACT_BUF_SIZE 0x2000 BOOL CUnAlz::ExtractBzip2(SExtractDest* dest, SAlzLocalFileHeader& file) { BZFILE *bzfp = NULL; int smallMode = 0; int verbosity = 1; int bzerr; INT64 len; BYTE buff[BZIP2_EXTRACT_BUF_SIZE]; INT64 nWritten = 0; BOOL bHalt = FALSE; UINT32 dwCRC32= 0; BOOL ret = FALSE; FSeek(file.dwFileDataPos); bzfp = BZ2_bzReadOpen(&bzerr,this,verbosity,smallMode,0,0); if(bzfp==NULL){ASSERT(0); return FALSE;} m_nErr = ERR_NOERR; while((len=BZ2_bzread(bzfp,buff,BZIP2_EXTRACT_BUF_SIZE))>0) { WriteToDest(dest, (BYTE*)buff, (int)len); //fwrite(buff,1,len,fp_w); dwCRC32 = crc32(dwCRC32,buff, (UINT)(len)); nWritten+=len; // progress callback if(m_pFuncCallBack) { m_pFuncCallBack(NULL, nWritten, file.uncompressedSize, m_pCallbackParam, &bHalt); if(bHalt) { break; } } } if(len<0) // ¿¡·¯ »óȲ.. { m_nErr = ERR_INFLATE_FAILED; } BZ2_bzReadClose( &bzerr, bzfp); m_bHalt = bHalt; if(m_nErr==ERR_NOERR) // ¼º°øÀûÀ¸·Î ¾ÐÃàÀ» Ç®¾ú´Ù.. CRC °Ë»çÇϱâ.. { if(file.fileCRC==dwCRC32) { ret = TRUE; } else { m_nErr = ERR_INVALID_FILE_CRC; } } /* // FILE* ¸¦ »ç¿ëÇÒ°æ¿ì »ç¿ëÇÏ´ø ÄÚµå. - ¸ÖƼ º¼·ý Áö¿ø ¾ÈÇÔ.. BZFILE *bzfp = NULL; int smallMode = 0; int verbosity = 1; int bzerr; int len; char buff[BZIP2_EXTRACT_BUF_SIZE]; INT64 nWritten = 0; BOOL bHalt = FALSE; FSeek(file.dwFileDataPos, SEEK_SET); bzfp = BZ2_bzReadOpen(&bzerr,m_fp,verbosity,smallMode,0,0); while((len=BZ2_bzread(bzfp,buff,BZIP2_EXTRACT_BUF_SIZE))>0) { WriteToDest(dest, (BYTE*)buff, len); //fwrite(buff,1,len,fp_w); nWritten+=len; // progress callback if(m_pFuncCallBack) { m_pFuncCallBack(NULL, nWritten, file.uncompressedSize, m_pCallbackParam, &bHalt); if(bHalt) { break; } } } BZ2_bzReadClose( &bzerr, bzfp); m_bHalt = bHalt; */ return ret; } #ifndef UNZ_BUFSIZE #define UNZ_BUFSIZE 0x1000 // (16384) #endif #define IN_BUF_SIZE UNZ_BUFSIZE #define OUT_BUF_SIZE 0x1000 //IN_BUF_SIZE //////////////////////////////////////////////////////////////////////////////////////////////////// /// deflate ·Î ¾ÐÃà Ç®±â. ExtractDeflate() ¿Í ´Þ¸® Á¶±Ý¾¿ Àо Ǭ´Ù. /// @param fp /// @param file /// @return /// @date 2004-03-06 ¿ÀÈÄ 11:11:36 //////////////////////////////////////////////////////////////////////////////////////////////////// BOOL CUnAlz::ExtractDeflate2(SExtractDest* dest, SAlzLocalFileHeader& file) { z_stream stream; BYTE pInBuf[IN_BUF_SIZE]; BYTE pOutBuf[OUT_BUF_SIZE]; int nInBufSize = IN_BUF_SIZE; int nOutBufSize = OUT_BUF_SIZE; int err; int flush=Z_SYNC_FLUSH; BOOL ret = FALSE; INT64 nRestReadCompressed; UINT32 dwCRC32= 0; INT64 rest_read_uncompressed; UINT iRead = 0; INT64 nWritten = 0; BOOL bHalt = FALSE; BOOL bIsEncrypted = IsEncryptedFile(); // ¾ÏÈ£°É¸° ÆÄÀÏÀΰ¡? memset(&stream, 0, sizeof(stream)); FSeek(file.dwFileDataPos); inflateInit2(&stream, -MAX_WBITS); nRestReadCompressed = file.compressedSize; rest_read_uncompressed = file.uncompressedSize; // Ãâ·Â ºÎºÐ. stream.next_out = pOutBuf; stream.avail_out = OUT_BUF_SIZE; m_nErr = ERR_NOERR; while(stream.avail_out>0) { if(stream.avail_in==0 && nRestReadCompressed>0) { UINT uReadThis = UNZ_BUFSIZE; if (nRestReadCompressed<(int)uReadThis) uReadThis = (UINT)nRestReadCompressed; // ÀÐÀ» Å©±â. if (uReadThis == 0) break; // ÁßÁö if(FRead(pInBuf, uReadThis)==FALSE) { m_nErr = ERR_CANT_READ_FILE; goto END; } if(bIsEncrypted) DecryptingData(uReadThis, pInBuf); // xf86 // dwCRC32 = crc32(dwCRC32,pInBuf, (UINT)(uReadThis)); nRestReadCompressed -= uReadThis; stream.next_in = pInBuf; stream.avail_in = uReadThis; } UINT uTotalOutBefore,uTotalOutAfter; const BYTE *bufBefore; UINT uOutThis; int flush=Z_SYNC_FLUSH; uTotalOutBefore = stream.total_out; bufBefore = stream.next_out; err=inflate(&stream,flush); uTotalOutAfter = stream.total_out; uOutThis = uTotalOutAfter-uTotalOutBefore; dwCRC32 = crc32(dwCRC32,bufBefore, (UINT)(uOutThis)); rest_read_uncompressed -= uOutThis; iRead += (UINT)(uTotalOutAfter - uTotalOutBefore); WriteToDest(dest, pOutBuf, uOutThis); //fwrite(pOutBuf, uOutThis, 1, fp); // file ¿¡ ¾²±â. stream.next_out = pOutBuf; stream.avail_out = OUT_BUF_SIZE; nWritten+=uOutThis; // progress callback if(m_pFuncCallBack) { m_pFuncCallBack(NULL, nWritten, file.uncompressedSize, m_pCallbackParam, &bHalt); if(bHalt) { m_nErr = ERR_USER_ABORTED; break; } } if (err==Z_STREAM_END) break; //if(iRead==0) break; // UNZ_EOF; if (err!=Z_OK) { m_nErr = ERR_INFLATE_FAILED; goto END; } } m_bHalt = bHalt; if(m_nErr==ERR_NOERR) // ¼º°øÀûÀ¸·Î ¾ÐÃàÀ» Ç®¾ú´Ù.. CRC °Ë»çÇϱâ.. { if(file.fileCRC==dwCRC32) { ret = TRUE; } else { m_nErr = ERR_INVALID_FILE_CRC; } } END : inflateEnd(&stream); return ret; } //////////////////////////////////////////////////////////////////////////////////////////////////// /// ÆÄÀÏ ¿­±â /// @param szPathName /// @return /// @date 2004-10-02 ¿ÀÈÄ 11:47:14 //////////////////////////////////////////////////////////////////////////////////////////////////// BOOL CUnAlz::FOpen(const char* szPathName) { char* temp = strdup(szPathName); // ÆÄÀÏ¸í º¹»ç.. int i; int nLen = strlen(szPathName); UINT64 nFileSizeLow; UINT32 dwFileSizeHigh; m_nFileCount = 0; m_nCurFile = 0; m_nVirtualFilePos = 0; m_nCurFilePos = 0; m_bIsEOF = FALSE; for(i=0;i0) safe_sprintf(temp+nLen-3, 4, "%c%02d", (i-1)/100+'a', (i-1)%100); #ifdef _WIN32 m_files[i].fp = CreateFileA(temp, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, NULL); if(m_files[i].fp==INVALID_HANDLE_VALUE) break; nFileSizeLow = GetFileSize(m_files[i].fp, (DWORD*)&dwFileSizeHigh); #else m_files[i].fp = fopen(temp, "rb"); if(m_files[i].fp==NULL) break; dwFileSizeHigh=0; unalz_fseek(m_files[i].fp,0,SEEK_END); nFileSizeLow=unalz_ftell(m_files[i].fp); unalz_fseek(m_files[i].fp,0,SEEK_SET); #endif m_nFileCount++; m_files[i].nFileSize = ((INT64)nFileSizeLow) + (((INT64)dwFileSizeHigh)<<32); if(i==0) m_files[i].nMultivolHeaderSize = 0; else m_files[i].nMultivolHeaderSize = MULTIVOL_HEAD_SIZE; m_files[i].nMultivolTailSize = MULTIVOL_TAIL_SIZE; } free(temp); if(m_nFileCount==0) return FALSE; m_files[m_nFileCount-1].nMultivolTailSize = 0; // ¸¶Áö¸· ÆÄÀÏÀº ²Ã¶ûÁö°¡ ¾ø´Ù.. return TRUE; } //////////////////////////////////////////////////////////////////////////////////////////////////// /// ÆÄÀÏ ´Ý±â /// @return /// @date 2004-10-02 ¿ÀÈÄ 11:48:53 //////////////////////////////////////////////////////////////////////////////////////////////////// void CUnAlz::FClose() { int i; #ifdef _WIN32 for(i=0;i>32)&0xffffffff); #ifdef _WIN32 SetFilePointer(m_files[i].fp, LONG(m_nCurFilePos), &remainHigh, FILE_BEGIN); #else unalz_fseek(m_files[i].fp, m_nCurFilePos, SEEK_SET); #endif return TRUE; } remain -= (m_files[i].nFileSize-m_files[i].nMultivolHeaderSize-m_files[i].nMultivolTailSize); } // ½ÇÆÐ..? ASSERT(0); return FALSE; } //////////////////////////////////////////////////////////////////////////////////////////////////// /// ÆÄÀÏ Àбâ /// @param buffer /// @param size /// @param count /// @return /// @date 2004-10-02 ¿ÀÈÄ 11:44:05 //////////////////////////////////////////////////////////////////////////////////////////////////// BOOL CUnAlz::FRead(void* buffer, UINT32 nBytesToRead, int* pTotRead ) { BOOL ret; UINT32 nNumOfBytesRead; INT64 dwRemain; UINT32 dwRead; UINT32 dwTotRead; dwRemain = nBytesToRead; dwTotRead = 0; if(pTotRead) *pTotRead=0; while(dwRemain) { dwRead = (UINT32)min(dwRemain, (m_files[m_nCurFile].nFileSize-m_nCurFilePos-m_files[m_nCurFile].nMultivolTailSize)); if(dwRead==0) { m_bIsEOF = TRUE;return FALSE; } #ifdef _WIN32 ret = ReadFile(m_files[m_nCurFile].fp, ((BYTE*)buffer)+dwTotRead, dwRead, (DWORD*)&nNumOfBytesRead, NULL); if(ret==FALSE && GetLastError()==ERROR_HANDLE_EOF) { m_bIsEOF = TRUE;return FALSE; } #else nNumOfBytesRead = fread(((BYTE*)buffer)+dwTotRead, 1,dwRead ,m_files[m_nCurFile].fp); if(nNumOfBytesRead<=0) { m_bIsEOF = TRUE;return FALSE; } ret=TRUE; #endif if(dwRead!=nNumOfBytesRead) // ¹ß»ýÇÏ¸é ¾ÈµÈ´Ù.. { ASSERT(0); return FALSE; } m_nVirtualFilePos += nNumOfBytesRead; // virtual ÆÄÀÏ À§Ä¡.. m_nCurFilePos+=nNumOfBytesRead; // ¹°¸®Àû ÆÄÀÏ À§Ä¡. dwRemain-=nNumOfBytesRead; dwTotRead+=nNumOfBytesRead; if(pTotRead) *pTotRead=dwTotRead; if(m_nCurFilePos==m_files[m_nCurFile].nFileSize-m_files[m_nCurFile].nMultivolTailSize) // overflow { m_nCurFile++; #ifdef _WIN32 if(m_files[m_nCurFile].fp==INVALID_HANDLE_VALUE) #else if(m_files[m_nCurFile].fp==NULL) #endif { m_bIsEOF = TRUE; if(dwRemain==0) return TRUE; // ¿ÏÀüÈ÷ ³¡±îÁö Àоú´Ù.. return FALSE; } m_nCurFilePos = m_files[m_nCurFile].nMultivolHeaderSize; // header skip #ifdef _WIN32 SetFilePointer(m_files[m_nCurFile].fp, (int)m_nCurFilePos, NULL, FILE_BEGIN); #else unalz_fseek(m_files[m_nCurFile].fp, m_nCurFilePos, SEEK_SET); #endif } else if(m_nCurFilePos>m_files[m_nCurFile].nFileSize-m_files[m_nCurFile].nMultivolTailSize) ASSERT(0); } return ret; } //////////////////////////////////////////////////////////////////////////////////////////////////// /// error code ¸¦ ½ºÆ®¸µÀ¸·Î ¹Ù²ã ÁØ´Ù. /// @param nERR /// @return /// @date 2004-10-24 ¿ÀÈÄ 3:28:39 //////////////////////////////////////////////////////////////////////////////////////////////////// const char* CUnAlz::LastErrToStr(ERR nERR) { if(nERR>= sizeof(errorstrtable)/sizeof(errorstrtable[0])) {ASSERT(0); return NULL; } return errorstrtable[nERR]; } // by xf86 BOOL CUnAlz::chkValidPassword() { if(IsEncryptedFile()==FALSE) {return TRUE;} if (getPasswordLen() == 0){ m_nErr = ERR_PASSWD_NOT_SET; return FALSE; } InitCryptKeys(m_szPasswd); if(CryptCheck(m_posCur->encChk) == FALSE){ m_nErr = ERR_INVALID_PASSWD; return FALSE; } return TRUE; } /* //////////////////////////////////////////////////////////////////////////////////////////////////// // from CZipArchive // Copyright (C) 2000 - 2004 Tadeusz Dracz // // http://www.artpol-software.com // // it's under GPL. //////////////////////////////////////////////////////////////////////////////////////////////////// void CUnAlz::CryptDecodeBuffer(UINT32 uCount, CHAR *buf) { if (IsEncrypted()) for (UINT32 i = 0; i < uCount; i++) CryptDecode(buf[i]); } void CUnAlz::CryptInitKeys() { m_keys[0] = 305419896L; m_keys[1] = 591751049L; m_keys[2] = 878082192L; for (int i = 0; i < strlen(m_szPasswd); i++) CryptUpdateKeys(m_szPasswd[i]); } void CUnAlz::CryptUpdateKeys(CHAR c) { m_keys[0] = CryptCRC32(m_keys[0], c); m_keys[1] += m_keys[0] & 0xff; m_keys[1] = m_keys[1] * 134775813L + 1; c = CHAR(m_keys[1] >> 24); m_keys[2] = CryptCRC32(m_keys[2], c); } BOOL CUnAlz::CryptCheck(CHAR *buf) { CHAR b = 0; for (int i = 0; i < ALZ_ENCR_HEADER_LEN; i++) { b = buf[i]; CryptDecode((CHAR&)b); } if (IsDataDescr()) // Data descriptor present return CHAR(m_posCur->head.fileTimeDate >> 8) == b; else return CHAR(m_posCur->maybeCRC >> 24) == b; } CHAR CUnAlz::CryptDecryptCHAR() { int temp = (m_keys[2] & 0xffff) | 2; return (CHAR)(((temp * (temp ^ 1)) >> 8) & 0xff); } void CUnAlz::CryptDecode(CHAR &c) { c ^= CryptDecryptCHAR(); CryptUpdateKeys(c); } UINT32 CUnAlz::CryptCRC32(UINT32 l, CHAR c) { const ULONG *CRC_TABLE = get_crc_table(); return CRC_TABLE[(l ^ c) & 0xff] ^ (l >> 8); } */ //////////////////////////////////////////////////////////////////////////////////////////////////// /// ¾ÏÈ£°É¸° ÆÄÀÏÀÎÁö ¿©ºÎ /// @param fileDescriptor /// @return /// @date 2004-11-27 ¿ÀÈÄ 11:25:32 //////////////////////////////////////////////////////////////////////////////////////////////////// BOOL CUnAlz::IsEncryptedFile(BYTE fileDescriptor) { return fileDescriptor&0x01; } BOOL CUnAlz::IsEncryptedFile() { return m_posCur->head.fileDescriptor&0x01; } //////////////////////////////////////////////////////////////////////////////////////////////////// /// ¾ÏÈ£·Î Å° ÃʱâÈ­ /// @param szPassword /// @return /// @date 2004-11-27 ¿ÀÈÄ 11:04:01 //////////////////////////////////////////////////////////////////////////////////////////////////// void CUnAlz::InitCryptKeys(const CHAR* szPassword) { m_key[0] = 305419896; m_key[1] = 591751049; m_key[2] = 878082192; int i; for(i=0;i<(int)strlen(szPassword);i++) { UpdateKeys(szPassword[i]); } } //////////////////////////////////////////////////////////////////////////////////////////////////// /// µ¥ÀÌŸ·Î Å° ¾÷µ¥ÀÌÆ®Çϱâ /// @param c /// @return /// @date 2004-11-27 ¿ÀÈÄ 11:04:09 //////////////////////////////////////////////////////////////////////////////////////////////////// void CUnAlz::UpdateKeys(BYTE c) { m_key[0] = CRC32(m_key[0], c); m_key[1] = m_key[1]+(m_key[0]&0x000000ff); m_key[1] = m_key[1]*134775813+1; m_key[2] = CRC32(m_key[2],m_key[1]>>24); } //////////////////////////////////////////////////////////////////////////////////////////////////// /// ¾ÏÈ£°¡ ¸Â´ÂÁö Çì´õ üũÇϱâ /// @param buf /// @return /// @date 2004-11-27 ¿ÀÈÄ 11:04:24 //////////////////////////////////////////////////////////////////////////////////////////////////// BOOL CUnAlz::CryptCheck(const BYTE* buf) { int i; BYTE c; BYTE temp[ALZ_ENCR_HEADER_LEN]; memcpy(temp, buf, ALZ_ENCR_HEADER_LEN); // Àӽà º¹»ç. for(i=0;ihead.fileTimeDate >> 8) == c; else return ( ((m_posCur->fileCRC)>>24) ) == c; // ÆÄÀÏ crc ÀÇ ÃÖ»óÀ§ byte } //////////////////////////////////////////////////////////////////////////////////////////////////// /// Å°¿¡¼­ µ¥ÀÌŸ ÃßÃâ /// @return /// @date 2004-11-27 ¿ÀÈÄ 11:05:36 //////////////////////////////////////////////////////////////////////////////////////////////////// BYTE CUnAlz::DecryptByte() { UINT16 temp; temp = m_key[2] | 2; return (temp * (temp^1))>>8; } //////////////////////////////////////////////////////////////////////////////////////////////////// /// µ¥ÀÌŸ ¾ÐÃà Ç®±â /// @param nSize /// @param data /// @return /// @date 2004-11-27 ¿ÀÈÄ 11:03:30 //////////////////////////////////////////////////////////////////////////////////////////////////// void CUnAlz::DecryptingData(int nSize, BYTE* data) { BYTE* p = data; BYTE temp; while(nSize) { temp = *p ^ DecryptByte(); UpdateKeys(temp); *p = temp; nSize--; p++; } } //////////////////////////////////////////////////////////////////////////////////////////////////// /// CRC Å×À̺í ÂüÁ¶ /// @param l /// @param c /// @return /// @date 2004-11-27 ¿ÀÈÄ 11:14:16 //////////////////////////////////////////////////////////////////////////////////////////////////// UINT32 CUnAlz::CRC32(UINT32 l, BYTE c) { const unsigned long *CRC_TABLE = get_crc_table(); return CRC_TABLE[(l ^ c) & 0xff] ^ (l >> 8); } void CUnAlz::SetPassword(char *passwd) { if(strlen(passwd) == 0) return; safe_strcpy(m_szPasswd, passwd, UNALZ_LEN_PASSWORD); } #ifdef _UNALZ_ICONV void CUnAlz::SetDestCodepage(const char* szToCodepage) { safe_strcpy(m_szToCodepage, szToCodepage, UNALZ_LEN_CODEPAGE); } #endif //////////////////////////////////////////////////////////////////////////////////////////////////// /// ¹®ÀÚ¿­ ó¸® ÇÔ¼öµé /// @param l /// @param c /// @return /// @date 2007-02 //////////////////////////////////////////////////////////////////////////////////////////////////// unsigned int CUnAlz::_strlcpy (char *dest, const char *src, unsigned int size) { register unsigned int i = 0; if (size > 0) { size--; for (i=0; size > 0 && src[i] != '\0'; ++i, size--) dest[i] = src[i]; dest[i] = '\0'; } while (src[i++]); return i; } unsigned int CUnAlz::_strlcat (char *dest, const char *src, unsigned int size) { register char *d = dest; for (; size > 0 && *d != '\0'; size--, d++); return (d - dest) + _strlcpy(d, src, size); } // ¾ÈÀüÇÑ strcpy void CUnAlz::safe_strcpy(char* dst, const char* src, size_t dst_size) { #ifdef _WIN32 lstrcpynA(dst, src, dst_size); #else _strlcpy(dst, src, dst_size); #endif } void CUnAlz::safe_strcat(char* dst, const char* src, size_t dst_size) { #ifdef _WIN32 StringCchCatExA(dst, dst_size, src, NULL, NULL, STRSAFE_FILL_BEHIND_NULL); //lstrcatA(dst, src); // not safe!! #else _strlcat(dst, src, dst_size); #endif } unalz/unalz.dsp00007000001040€ÿÿÿÿ0000001430210545537761016341 0ustar Administrators????????# Microsoft Developer Studio Project File - Name="unalz" - Package Owner=<4> # Microsoft Developer Studio Generated Build File, Format Version 6.00 # ** DO NOT EDIT ** # TARGTYPE "Win32 (x86) Console Application" 0x0103 CFG=unalz - Win32 Debug !MESSAGE This is not a valid makefile. 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Win32 Debug" # PROP BASE Use_MFC 0 # PROP BASE Use_Debug_Libraries 1 # PROP BASE Output_Dir "Debug" # PROP BASE Intermediate_Dir "Debug" # PROP BASE Target_Dir "" # PROP Use_MFC 0 # PROP Use_Debug_Libraries 1 # PROP Output_Dir "Debug" # PROP Intermediate_Dir "Debug" # PROP Ignore_Export_Lib 0 # PROP Target_Dir "" # ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c # ADD CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /FR /YX /FD /GZ /c # ADD BASE RSC /l 0x412 /d "_DEBUG" # ADD RSC /l 0x412 /d "_DEBUG" BSC32=bscmake.exe # ADD BASE BSC32 /nologo # ADD BSC32 /nologo LINK32=link.exe # ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept # ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /debug /machine:I386 /out:"bin/unalz_d.exe" /pdbtype:sept !ENDIF # Begin Target # Name "unalz - 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Package Owner=<4> Package=<5> {{{ begin source code control "$/Home/unalz", VXBAAAAA . end source code control }}} Package=<4> {{{ }}} ############################################################################### Global: Package=<5> {{{ }}} Package=<3> {{{ }}} ############################################################################### unalz/UnAlz.h00007000001040€ÿÿÿÿ0000005024511164616454015703 0ustar Administrators????????/* UNALZ : read and extract module for ALZ format. LICENSE (zlib License) Copyright (C) 2004-2009 kippler@gmail.com , http://www.kipple.pe.kr This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. ÀÌ ¼ÒÇÁÆ®¿þ¾î´Â ¾î¶°ÇÑ ¸í½ÃÀû ¶Ç´Â ¹¬½ÃÀû º¸Áõµµ ¾øÀÌ "ÀÖ´Â ±×´ë·Î" Á¦°øµË´Ï´Ù. ±× ¾î¶² °æ¿ì¿¡µµ ÀÛ¼ºÀÚ´Â ÀÌ ¼ÒÇÁÆ®¿þ¾îÀÇ »ç¿ëÀ¸·Î ÀÎÇÑ ¼ÕÇØ¿¡ ´ëÇØ Ã¥ÀÓÀ» ÁöÁö ¾Ê½À´Ï´Ù. ´ÙÀ½ Á¦ÇÑ ±ÔÁ¤À» ÁؼöÇÏ´Â °æ¿ì¿¡ ÇÑÇÏ¿© »ó¾÷ÀûÀÎ ÀÀ¿ë ÇÁ·Î±×·¥À» Æ÷ÇÔÇÏ´Â ¸ðµç ¿ëµµ·Î ÀÌ ¼ÒÇÁÆ®¿þ¾î¸¦ »ç¿ëÇÏ°í ÀÚÀ¯·Ó°Ô ¼öÁ¤ ¹× Àç¹èÆ÷ÇÒ ¼ö ÀÖ´Â ±ÇÇÑÀÌ ´©±¸¿¡°Ô³ª ºÎ¿©µË´Ï´Ù. 1. ÀÌ ¼ÒÇÁÆ®¿þ¾îÀÇ Ãâó¸¦ À߸ø Ç¥½ÃÇϰųª ¿ø·¡ ¼ÒÇÁÆ®¿þ¾î¸¦ ÀÚ½ÅÀÌ ÀÛ¼ºÇß´Ù°í ÁÖÀåÇؼ­´Â ¾È µË´Ï´Ù. Á¦Ç°¿¡ ÀÌ ¼ÒÇÁÆ®¿þ¾î¸¦ »ç¿ëÇÏ´Â °æ¿ì ¿ä±¸ »çÇ×Àº ¾Æ´ÏÁö¸¸ Á¦Ç° ¼³¸í¼­¿¡ ÀÎÁ¤ Á¶Ç×À» ³Ö¾î ÁÖ½Ã¸é °¨»çÇÏ°Ú½À´Ï´Ù. 2. ¼öÁ¤µÈ ¼Ò½º ¹öÀüÀº ¹Ýµå½Ã ¸íÈ®ÇÏ°Ô Ç¥½ÃµÇ¾î¾ß ÇÏ¸ç ¿ø·¡ ¼ÒÇÁÆ®¿þ¾î·Î ¿ÀÀεǵµ·Ï À߸ø Ç¥½ÃÇؼ­´Â ¾È µË´Ï´Ù. 3. ¸ðµç ¼Ò½º ¹èÆ÷ ½Ã ÀÌ °øÁö¸¦ »èÁ¦Çϰųª ¼öÁ¤ÇÒ ¼ö ¾ø½À´Ï´Ù. ============================================================================================================= ±ÇÀå»çÇ× : - ¼Ò½ºÀÇ ¿À·ù¸¦ ã¾Ò°Å³ª, ¹®Á¦Á¡À» ¼öÁ¤ÇÏ¿´À» °æ¿ì ÀÌ¿¡ ´ëÇÑ ³»¿ëÀ» ¾Ë·ÁÁÖ¸é Á¤¸» °í¸¶¿ï²¬.. - ÀÚ½ÅÀÇ ÇÁ·Î±×·¥¿¡ ÀÌ ¼Ò½º¸¦ »ç¿ëÇÏ¿´À» °æ¿ì ³ªÇÑÅ× ¸ÞÀÏÇÑÅë ¶§·ÁÁÖ¸é ³»°¡ °í¸¶¿ö ÇÒ²¬.. ¼Ò½º ¼³¸í : - .ALZ ÀÇ ¾ÐÃàÀ» ÇØÁ¦Çϱâ À§ÇÑ ¸ðµâ. - ALZ´Â BZIP2º¯Çü(º¯ÇüÀ̶ó°í ¹¹ °³¼±ÇÑ°Ô ¾Æ´Ï°í, Çì´õ³ª CRC Á¤º¸µîÀ» »©¼­ Å©±â¸¦ ÁÙÀÎ °ÍÀÓ)°ú, DEFLATE ¾ÐÃà ¾Ë°í¸®Áò¿¡ ZIP°ú À¯»çÇÑ Çì´õ¸¦ ¸¸µé¾î¼­ ¾º¿î Æ÷¸ËÀÓ. (bzip2 ´Â ¾ËÁý 4.9x ¿¡¼­ »ç¿ëÇÏ¿´°í, deflate ´Â 5.x ºÎÅÍ »ç¿ëÇÏ¿´À½. 5.x ºÎÅÍ´Â bzip2´Â ³Ê¹« ´À·Á¼­ »ç¿ë ¾ÈÇÔ) - UnAlzBz2decompress.c ¿Í UnAlzbzlib.c ´Â ¿ø·¡ÀÇ bzip2 ¼Ò½º¿¡¼­ alz ¿ëÀ¸·Î ¼öÁ¤µÈ ÆÄÀÏÀÓ (deflate ´Â º¯ÇüÀÌ ¾ÈµÇ¾ú±â ¶§¹®¿¡ ±×³É zlib ¸¦ ½áµµ µÇÁö¸¸.. bzip2 ´Â º¯ÇüÀÌ µÇ¾î¼­ ¿ø·¡ÀÇ bzip2 ¼Ò½º¸¦ ±×´ë·Î ¾²¸é ¾ÈµÈ´Ù.) - ÀÌ ¼Ò½º´Â 4Ä­ ÅÇÀ» »ç¿ë ÇÏ¿´À½. °³¹ß ¼ø¼­ : 2004/02/06 - http://www.wotsit.org/ ¿¡¼­ ZIP File Format Specification version 4.5 [PKWARE Inc.] ¸¦ ´Ù¿î·Îµå ¹Þ¾Æ¼­ ºÐ¼®. 2004/02/07 - µµÅ¥¸ÕÆ®·Î unzip Ŭ·¡½º ´ëÃæ ±¸Çö 2004/02/08 - unzip Ŭ·¡½º¸¦ alzip Æ÷¸Ë¿¡ ¸ÂÃß¾î º¯Çü ¹× Å×½ºÆ® - deflate, rawdata ¾ÐÃà ÇØÁ¦ ±¸Çö. - ´ÙÀÌ¾Ë·Î±× ¹Ú½º ²®µ¥±â ¾º¿ò. 2004/02/08 - bzip2 ´ëÃæ Áö¿ø 2004/03/01 - bzip2 °ÅÀÇ ¿Ïº® Áö¿ø Ò¬ - callback ±¸Çö.. 2004/03/07 - À¯Æ¿ ÇÔ¼ö Ãß°¡ (ExtractCurrentFileToBuf()) 2004/10/03 - ºÐÇÒ ¾ÐÃà ÇØÁ¦ ±â´É Ãß°¡ (FILE I/O ¿¡ ´ëÇÑ ·¡ÆÛ Å¬·¡½º ±¸Çö) - 2GB ÀÌ»óÀÇ ÆÄÀÏ Ã³¸® Áö¿ø (WINDOWS ONLY) 2004/10/22 - ´ÙÁß Ç÷§Æû(BSD/LINUX)Áö¿øÀ» À§ÇÑ ¼öÁ¤ (BSD/LINUX ÀÇ °æ¿ì 2GB ÀÌÇÏÀÇ ÆÄÀϸ¸ Áö¿ø) - unalz 0.20 2004/10/23 - by xxfree86 : DARWIN ÄÄÆÄÀÏ Áö¿ø, °æ·Î¸í¿¡ "\\" Æ÷ÇԽà ¹®Á¦Á¡ ¼öÁ¤ 2004/10/24 - by aqua0125 : ÄÚµåÆäÀÌÁö º¯È¯Ã³¸®, 64bit ÆÄÀÏ Ã³¸® - ºò¿£µð¾È, ÄÚµåÆäÀÌÁö º¯È¯ °ü·Ã ¼Ò½º Á¤¸® 2004/10/25 - by yongari : __LP64__ , ºò¿£µð¾È(le64toh/le132oh/le16toh) °ü·Ã À̽´ ¼öÁ¤ 2004/10/26 - BSD/LINUX : byte-order, libiconv À̽´ Á¤¸® - unalz 0.22 2004/10/30 - Á¤¸® & Á¤¸®.. - unalz 0.23 2004/11/14 - by xxfree86 : ¾ÏÈ£ °É¸° ÆÄÀÏ Ã³¸® Ãß°¡ - unalz 0.30 2004/11/27 - cygwin¿¡¼­ ÄÄÆÄÀÏ µÇµµ·Ï ¼öÁ¤ - ¾Ïȣó¸® ºÎºÐ¿¡ ÀϺΠ»ç¿ëµÈ GPL ÀÇ CZipArchive Äڵ带 "ZIP File Format Specification version 4.5" ¹®¼­¸¦ Âü°íÇؼ­ ´Ù½Ã ÄÚµù & Á¤¸® - ¾ÏÈ£°É¸° ÆÄÀÏ°ú ¾È°É¸° ÆÄÀÏ ¼¯¿´À»¶§ ó¸® - ÆÄÀÏÀÇ µÞºÎºÐÀÌ Àß·Á¼­ ¼Õ»óµÈ ÆÄÀϵµ ¸ÖÂÄÇÑ ºÎºÐ±îÁö´Â ¾ÐÃàÀ» Ç®µµ·Ï ¼öÁ¤ - unalz 0.31 2005/01/08 - ¾ÏÈ£ À߸ø ÀԷ½à Çѹø üũÈÄ µÎ¹ø°´Â Á¤»ó ¾ÏÈ£¸¦ ÀÔ·ÂÇصµ Ç®Áö ¸øÇÏ°Ô µÇ´ø ¹ö±× ¼öÁ¤ 2005/02/05 - ¾ÐÃà ÇØÁ¦ÈÄ deflate ÀÇ ÆÄÀÏ CRC È®ÀÎ ±â´É Ãß°¡ 2005/03/07 - bzip2, raw ÆÄÀÏ¿¡ ´ëÇÑ ÆÄÀÏ CRC È®ÀÎ ±â´É Ãß°¡ 2005/03/13 - ALZ ÆÄÀÏÀÌ ¾Æ´Ò°æ¿ì ¿¡·¯ ÄÚµå(ERR_NOT_ALZ_FILE) Ãß°¡ 2005/06/16 - GetFileList() ÇÔ¼ö ¹ö±× ¼öÁ¤(¸®ÅÏŸÀÔ º¯°æ) 2005/06/18 - by goweol : utf-8 »ç¿ë½Ã ÆÄÀÏÀ̸§¿¡¼­ ¹öÆÛ ¿À¹öÇÃ·Î¿ì ¹ß»ýÇÏ´ø ¹ö±× ¼öÁ¤ - unalz 0.4 2005/06/22 - by goweol : -l ¿É¼ÇÀ¸·Î ÆÄÀÏ ¸®½ºÆà ±â´É Ãß°¡ - UnAlzUtils.cpp/h ÆÄÀÏÀ» ÇÁ·ÎÁ§Æ®¿¡ Ãß°¡ 2005/06/29 - by xxfree86 : MacOSX 10.4.1 gcc 4.0 ¿¡¼­ iconv °ü·Ã ÄÄÆÄÀÏ ¿¡·¯ ¼öÁ¤ - ºò¿£µð¾È¿¡¼­ CRC üũ½Ã ¿¡·¯ ¹ß»ýÇÏ´Â ¹®Á¦Á¡ ¼öÁ¤(?) 2005/07/02 - unalz Ä¿¸Çµå ¶óÀÎ ¹æ½Ä º¯°æ, ¾ÐÃàÇ® ´ë»ó ÆÄÀÏ ÁöÁ¤ ±â´É Ãß°¡.. - ¾ÐÃà ÇØÁ¦µÈ ÆÄÀϽð£À» ¿ø·¡ ½Ã°£À¸·Î ¼¼ÆÃÇÏ´Â ÄÚµå Ãß°¡ - from unalz_wcx_01i.zip 2005/07/09 - unalz 0.5 2005/07/24 - -d ·Î ´ë»ó °æ·Î¸¦ "/" ·Î ½ÃÀ۵Ǵ Àý´ë°æ·Î·Î ÁöÁ¤Çϸé ÇÁ·Î±×·¥ÀÌ Á×´ø ¹ö±× ¼öÁ¤(Pavel Roskin) - pipemode Ãß°¡ - ¸Þ½ÃÁö¾øÀÌ ÆÄÀÌÇÁ·Î Ãâ·ÂÇÑ´Ù(Pavel Roskin) - ¸®½ºÆ® ¸ðµå¿¡¼­ ÆÄÀÏ ³¯ÀÚ/½Ã°£À» ½Ã½ºÅÛ ·ÎÄÉÀÏ ¼³Á¤¿¡ µû¶ó¼­ Ç¥½Ã(Pavel Roskin) - Ä¿¸Çµå¶óÀο¡¼­ -pwd ¿É¼ÇÀ¸·Î ¾ÏÈ£ ÁöÁ¤±â´É Ãß°¡ - unalz 0.51 2005/07/27 - main() ¿¡ setlocale() Ãß°¡ - unalz 0.52 2005/10/15 - NetBSD ¿¡¼­ ÄÄÆÄÀÏ µÇµµ·Ï ¼öÁ¤ (by minskim@bawi) 2005/11/21 - buffer overflow ¹ö±× ¼öÁ¤ (by Ulf Harnhammar) - unalz 0.53 2006/03/10 - .. Æú´õ °ü·Ã º¸¾È ¹®Á¦ ¼öÁ¤ (by vuln@secunia) - unalz 0.55 2006/04/23 - ¿£µð¾È 󸮸¦ ·±Å¸ÀÓ¿¡ Çϵµ·Ï ¼öÁ¤ 2006/12/31 - strcpy/strcat/sprintf ¿Í °°Àº ¹öÆÛ ¿À¹öÇÃ·Î¿ì °¡´É¼ºÀÌ ÀÖ´Â ÇÔ¼ö Á¦°Å (by liam.joo@gmail) - unalz 0.60 2007/02/10 - ¸®´ª½ºµî¿¡¼­ strlcpy, strlcat ÄÄÆÄÀÏ ¿¡·¯ ¼öÁ¤ - unalz 0.61 2007/04/12 - unalz command ¶óÀÎ ½ÇÇàÁß ¾ÏÈ£ ÀԷ½à \nÀÌ Æ÷ÇԵǴ ¹ö±× ¼öÁ¤ 2008/04/04 - debian ºôµå °ü·Ã ¼öÁ¤ (by cwryu@debian ) - ¼Ò½º Á¤¸®, NULL iterator °ü·Ã ¼öÁ¤ - unalz 0.62 2009/01/09 - apple gcc ÄÄÆÄÀÏ °ü·Ã ¼öÁ¤(by lacovnk) - unalz 0.63 2009/01/20 - 2GB°¡ ³Ñ´Â ÆÄÀÏ Ã³¸® °ü·Ã ¼öÁ¤(by bsjeon@hanmail) - ÆÄÀÏ ¸®½ºÆà ºÎºÐ ¼öÁ¤ - ¼Ò½º Á¤¸® - unalz 0.64 2009/04/01 - bzip2 1.0.5 update - vs2008 ÄÄÆÄÀÏ °ü·Ã À̽´ ¼öÁ¤(atlconv ¾È¾²±â, crt secure warning disable) (by kaisyu@gmail) - unalz 0.65 ±â´É : - alz ÆÄÀÏÀÇ ¾ÐÃà ÇØÁ¦ (deflate/º¯Çü bzip2/raw) - ºÐÇÒ ¾ÐÃà ÆÄÀÏ Áö¿ø (alz, a00, a01.. ) - ´Ù¾çÇÑ Ç÷¡Æû Áö¿ø (Win32/POSIX(BSD/LINUX/DARWIN)) - ¾ÏÈ£°É¸° ÆÄÀÏÀÇ ¾ÐÃà ÇØÁ¦ - µÞºÎºÐÀÌ À߸° ÆÄÀϵµ ¸ÖÂÄÇÑ ºÎºÐ±îÁö ¾ÐÃà ÇØÁ¦ °¡´É - CRC üũ±â´É ÄÄÆÄÀÏ ¿É¼Ç (-DXXXX) - _WIN32 : WIN32 - _UNALZ_ICONV : iconv ¸¦ »ç¿ëÇؼ­ code ÆäÀÌÁö º¯È¯ Áö¿ø - _UNALZ_UTF8 : _UNALZ_ICONV ¸¦ »ç¿ëÇÒ °æ¿ì ±âº» ÄÚµåÆäÀÌÁö¸¦ "UTF-8" ·Î ÁöÁ¤ */ #ifndef _UNALZ_H_ #define _UNALZ_H_ #include #include #include using namespace std; #ifndef INT64 #ifdef _WIN32 # define INT64 __int64 #else # define INT64 long long #endif #endif #ifndef UINT64 #ifdef _WIN32 # define UINT64 unsigned __int64 #else # define UINT64 unsigned long long #endif #endif #ifndef UINT32 typedef unsigned int UINT32; #endif #ifndef UINT16 typedef unsigned short UINT16; #endif #ifndef SHORT typedef short SHORT; #endif #ifndef BYTE typedef unsigned char BYTE; #endif #ifndef CHAR typedef char CHAR; #endif #ifndef BYTE typedef unsigned char BYTE; #endif #ifndef UINT typedef unsigned int UINT; #endif #ifndef LONG typedef long LONG; #endif #ifndef BOOL # ifndef BOOL_DEFINED // ÀÌ¹Ì BOOL ÀÌ DEFINE µÇ¾î ÀÖÀ¸¸é BOOL_DEFINED ¸¦ define Çؼ­ ÄÄÆÄÀÏ ¿¡·¯¸¦ ¸·À» ¼ö ÀÖ´Ù. typedef int BOOL; # endif #endif #ifndef FALSE # define FALSE 0 #endif #ifndef TRUE # define TRUE 1 #endif #ifndef HANDLE # ifdef _WIN32 typedef void *HANDLE; # else typedef FILE *HANDLE; # endif #endif #ifndef ASSERT # include //# define ASSERT(x) assert(x) # define ASSERT(x) {printf("unalz assert at file:%s line:%d\n", __FILE__, __LINE__);} #endif namespace UNALZ { #ifdef _WIN32 # pragma pack(push, UNALZ, 1) // structure packing #else # pragma pack(1) #endif static const char UNALZ_VERSION[] = "CUnAlz0.65"; static const char UNALZ_COPYRIGHT[] = "Copyright(C) 2004-2009 by kippler@gmail.com ( http://www.kipple.pe.kr ) "; enum {ALZ_ENCR_HEADER_LEN=12}; // xf86 // ¸Ç ÆÄÀÏ ¾Õ.. struct SAlzHeader { UINT32 unknown; // ?? }; /* union _UGeneralPurposeBitFlag // zip ¿¡¼­¸¸ »ç¿ë.. { SHORT data; struct { BYTE bit0 : 1; BYTE bit1 : 1; BYTE bit2 : 1; BYTE bit3 : 1; BYTE bit4 : 1; BYTE bit5 : 1; }; }; */ enum COMPRESSION_METHOD ///< ¾ÐÃà ¹æ¹ý.. { COMP_NOCOMP = 0, COMP_BZIP2 = 1, COMP_DEFLATE = 2, COMP_UNKNOWN = 3, // unknown! }; enum ALZ_FILE_ATTRIBUTE { ALZ_FILEATTR_READONLY = 0x1, ALZ_FILEATTR_HIDDEN = 0x2, ALZ_FILEATTR_DIRECTORY = 0x10, ALZ_FILEATTR_FILE = 0x20, }; enum ALZ_FILE_DESCRIPTOR { ALZ_FILE_DESCRIPTOR_ENCRYPTED = 0x01, // ¾ÏÈ£ °É¸° ÆÄÀÏ ALZ_FILE_DESCRIPTOR_FILESIZEFIELD_1BYTE = 0x10, // ÆÄÀÏ Å©±â ÇʵåÀÇ Å©±â ALZ_FILE_DESCRIPTOR_FILESIZEFIELD_2BYTE = 0x20, ALZ_FILE_DESCRIPTOR_FILESIZEFIELD_4BYTE = 0x40, ALZ_FILE_DESCRIPTOR_FILESIZEFIELD_8BYTE = 0x80, }; struct _SAlzLocalFileHeaderHead ///< °íÁ¤ Çì´õ. { SHORT fileNameLength; BYTE fileAttribute; // from http://www.zap.pe.kr, enum FILE_ATTRIBUE Âü°í UINT32 fileTimeDate; // dos file time BYTE fileDescriptor; ///< ÆÄÀÏ Å©±â ÇʵåÀÇ Å©±â : 0x10, 0x20, 0x40, 0x80 °¢°¢ 1byte, 2byte, 4byte, 8byte. ///< fileDescriptor & 1 == ¾ÏÈ£°É·È´ÂÁö ¿©ºÎ BYTE unknown2[1]; ///< ??? /* SHORT versionNeededToExtract; _UGeneralPurposeBitFlag generalPurposeBitFlag; SHORT compressionMethod; SHORT lastModFileTime; SHORT lastModFileDate; UINT32 crc32; UINT32 compressedSize; UINT32 uncompressedSize; SHORT fileNameLength; SHORT extraFieldLength; */ }; struct SAlzLocalFileHeader { SAlzLocalFileHeader() { memset(this, 0, sizeof(*this)); } //~SAlzLocalFileHeader() { if(fileName) free(fileName); if(extraField) free(extraField); } void Clear() { if(fileName) free(fileName); fileName=NULL; if(extraField) free(extraField);extraField=NULL; } _SAlzLocalFileHeaderHead head; BYTE compressionMethod; ///< ¾ÐÃà ¹æ¹ý : 2 - deflate, 1 - º¯Çü bzip2, 0 - ¾ÐÃà ¾ÈÇÔ. BYTE unknown; UINT32 fileCRC; ///< ÆÄÀÏÀÇ CRC, ÃÖ»óÀ§ ¹ÙÀÌÆ®´Â ¾ÏÈ£ üũ¿ëÀ¸·Îµµ »ç¿ëµÈ´Ù. INT64 compressedSize; INT64 uncompressedSize; CHAR* fileName; BYTE* extraField; INT64 dwFileDataPos; ///< file data °¡ ÀúÀåµÈ À§Ä¡.. BYTE encChk[ALZ_ENCR_HEADER_LEN]; // xf86 }; struct _SAlzCentralDirectoryStructureHead { UINT32 dwUnknown; ///< Ç×»ó NULL ÀÌ´øµ¥.. UINT32 dwUnknown2; ///< ¾Æ¸¶µµ crc UINT32 dwCLZ03; ///< "CLZ0x03" - 0x035a4c43 ³¡À» Ç¥½ÃÇϴµí. /* SHORT versionMadeBy; SHORT versionNeededToExtract; _UGeneralPurposeBitFlag generalPurposeBitFlag; SHORT compressionMethod; SHORT lastModFileTime; SHORT lastModFileDate; UINT32 crc32; UINT32 compressedSize; UINT32 uncompressedSize; SHORT fileNameLength; SHORT extraFieldLength; SHORT fileCommentLength; SHORT diskNumberStart; SHORT internalFileAttributes; UINT32 externalFileAttributes; UINT32 relativeOffsetOfLocalHeader; */ }; struct SCentralDirectoryStructure { SCentralDirectoryStructure() { memset(this, 0, sizeof(*this)); } //~SCentralDirectoryStructure() { if(fileName) free(fileName); if(extraField) free(extraField);if(fileComment)free(fileComment); } _SAlzCentralDirectoryStructureHead head; /* CHAR* fileName; BYTE* extraField; CHAR* fileComment; */ }; /* struct _SEndOfCentralDirectoryRecordHead { SHORT numberOfThisDisk; SHORT numberOfTheDiskWithTheStartOfTheCentralDirectory; SHORT centralDirectoryOnThisDisk; SHORT totalNumberOfEntriesInTheCentralDirectoryOnThisDisk; UINT32 sizeOfTheCentralDirectory; UINT32 offsetOfStartOfCentralDirectoryWithREspectoTotheStartingDiskNumber; SHORT zipFileCommentLength; }; */ /* struct SEndOfCentralDirectoryRecord { SEndOfCentralDirectoryRecord() { memset(this, 0, sizeof(*this)); } ~SEndOfCentralDirectoryRecord() { if(fileComment) free(fileComment); } _SEndOfCentralDirectoryRecordHead head; CHAR* fileComment; }; */ #ifdef _WIN32 # pragma pack(pop, UNALZ) ///< PACKING ¿ø»ó º¹±¸ #else # pragma pack() // restore packing #endif ///< PROGRESS CALLBACK FUNCTION - ¾ÐÃà ÇØÁ¦ ÁøÇà »óȲÀ» ¾Ë°í ½ÍÀ¸¸é ÀÌ°É ¾²¸é µÈ´Ù. typedef void (_UnAlzCallback)(const char* szFileName, INT64 nCurrent, INT64 nRange, void* param, BOOL* bHalt); class CUnAlz { public: CUnAlz(); ~CUnAlz(); BOOL Open(const char* szPathName); void Close(); BOOL SetCurrentFile(const char* szFileName); BOOL ExtractCurrentFile(const char* szDestPathName, const char* szDestFileName=NULL); BOOL ExtractCurrentFileToBuf(BYTE* pDestBuf, int nBufSize); // pDestBuf=NULL ÀÏ °æ¿ì Å×½ºÆ®¸¸ ¼öÇàÇÑ´Ù. BOOL ExtractAll(const char* szDestPathName); void SetCallback(_UnAlzCallback* pFunc, void* param=NULL); void SetPipeMode(BOOL bPipeMode) {m_bPipeMode=bPipeMode;} void SetPassword(char *passwd); // xf86 BOOL chkValidPassword(); // xf86 BOOL IsEncrypted() { return m_bIsEncrypted; }; #ifdef _UNALZ_ICONV void SetDestCodepage(const char* szToCodepage); #endif public : ///< WIN32 Àü¿ë ( UNICODE 󸮿ë ) #ifdef _WIN32 #ifndef __GNUWIN32__ #ifndef LPCWSTR typedef const wchar_t* LPCWSTR; #endif BOOL Open(LPCWSTR szPathName); BOOL SetCurrentFile(LPCWSTR szFileName); static BOOL IsFolder(LPCWSTR szPathName); #endif // __GNUWIN32__ #endif // _WIN32 public : typedef vector FileList; ///< ÆÄÀÏ ¸ñ·Ï. FileList* GetFileList() { return &m_fileList; }; ///< file ¸ñ·Ï ¸®ÅÏ void SetCurrentFile(FileList::iterator newPos); ///< low level Á¢±Ù.. FileList::iterator GetCurFileHeader() { return m_posCur; }; ///< ÇöÀç (SetCurrentFile() ·Î ¼¼ÆõÈ) ÆÄÀÏ Á¤º¸ public : enum ERR ///< ¿¡·¯ ÄÚµå - Á¤¸® ÇÊ¿ä.. { ERR_NOERR, ERR_GENERAL, ///< GENERAL ERROR ERR_CANT_OPEN_FILE, ///< ¼Ò½º ÆÄÀÏ ¿­±â ½ÇÆÐ ERR_CANT_OPEN_DEST_FILE, ///< ´ë»ó ÆÄÀÏ ¿­±â ½ÇÆÐ // ERR_CANT_CREATE_DEST_PATH, ///< ´ë»ó °æ·Î ¸¸µé±â ½ÇÆÐ ERR_CORRUPTED_FILE, ///< ±úÁø ÆÄÀÏ? ERR_NOT_ALZ_FILE, ///< ALZ ÆÄÀÏÀÌ ¾Æ´Ï´Ù. ERR_CANT_READ_SIG, ///< signature Àб⠽ÇÆÐ ERR_CANT_READ_FILE, ERR_AT_READ_HEADER, ERR_INVALID_FILENAME_LENGTH, ERR_INVALID_EXTRAFIELD_LENGTH, ERR_CANT_READ_CENTRAL_DIRECTORY_STRUCTURE_HEAD, ERR_INVALID_FILENAME_SIZE, ERR_INVALID_EXTRAFIELD_SIZE, ERR_INVALID_FILECOMMENT_SIZE, ERR_CANT_READ_HEADER, ERR_MEM_ALLOC_FAILED, ERR_FILE_READ_ERROR, ERR_INFLATE_FAILED, ERR_BZIP2_FAILED, ERR_INVALID_FILE_CRC, ERR_UNKNOWN_COMPRESSION_METHOD, ERR_ICONV_CANT_OPEN, ERR_ICONV_INVALID_MULTISEQUENCE_OF_CHARACTERS, ERR_ICONV_INCOMPLETE_MULTIBYTE_SEQUENCE, ERR_ICONV_NOT_ENOUGH_SPACE_OF_BUFFER_TO_CONVERT, ERR_ICONV_ETC, ERR_PASSWD_NOT_SET, ERR_INVALID_PASSWD, ERR_USER_ABORTED, }; ERR GetLastErr(){return m_nErr;} const char* GetLastErrStr(){return LastErrToStr(m_nErr);} const char* LastErrToStr(ERR nERR); enum SIGNATURE ///< zip file signature - little endian { SIG_ERROR = 0x00, SIG_EOF = 0x01, SIG_ALZ_FILE_HEADER = 0x015a4c41, ///< ALZ 0x01 SIG_LOCAL_FILE_HEADER = 0x015a4c42, ///< BLZ 0x01 SIG_CENTRAL_DIRECTORY_STRUCTURE = 0x015a4c43, ///< CLZ 0x01 SIG_ENDOF_CENTRAL_DIRECTORY_RECORD = 0x025a4c43, ///< CLZ 0x02 }; public : static BOOL DigPath(const CHAR* szPathName); static BOOL IsFolder(const CHAR* szPathName); static const char* GetVersion() { return UNALZ_VERSION; } static const char* GetCopyright() { return UNALZ_COPYRIGHT; } BOOL IsHalted() { return m_bHalt; } // by xf86 public : static void safe_strcpy(char* dst, const char* src, size_t dst_size); static void safe_strcat(char* dst, const char* src, size_t dst_size); static unsigned int _strlcpy (char *dest, const char *src, unsigned int size); static unsigned int _strlcat (char *dest, const char *src, unsigned int size); private : SIGNATURE ReadSignature(); BOOL ReadAlzFileHeader(); BOOL ReadLocalFileheader(); BOOL ReadCentralDirectoryStructure(); BOOL ReadEndofCentralDirectoryRecord(); private : enum EXTRACT_TYPE ///< ¾ÐÃà ÇØÁ¦ ŸÀÔ. { ET_FILE, ///< FILE* ET_MEM, ///< memory buffer }; struct SExtractDest ///< ¾ÐÃà ÇØÁ¦ ´ë»ó. { SExtractDest() { memset(this, 0, sizeof(SExtractDest)); } EXTRACT_TYPE nType; ///< ´ë»óÀÌ ÆÄÀÏÀΰ¡ ¸Þ¸ð¸® Àΰ¡.. FILE* fp; ///< ET_FILE ÀÏ °æ¿ì ´ë»ó FILE* BYTE* buf; ///< ET_MEM ÀÏ °æ¿ì ´ë»ó Æ÷ÀÎÅÍ UINT32 bufsize; ///< ET_MEM ÀÏ °æ¿ì ´ë»ó ¹öÆÛÀÇ Å©±â UINT32 bufpos; ///< ET_MEM ÀÏ °æ¿ì ´ë»ó ¹öÆÛ¿¡ ¾²°í ÀÖ´Â À§Ä¡ }; int WriteToDest(SExtractDest* dest, BYTE* buf, int nSize); private : BOOL ExtractTo(SExtractDest* dest); //BOOL ExtractDeflate(FILE* fp, SAlzLocalFileHeader& file); //BOOL ExtractBzip2_bak(FILE* fp, SAlzLocalFileHeader& file); - ½ÇÆÐÇÑ(À߸øµÈ) ¹æ¹ý BOOL ExtractDeflate2(SExtractDest* dest, SAlzLocalFileHeader& file); BOOL ExtractBzip2(SExtractDest* dest, SAlzLocalFileHeader& file); BOOL ExtractRawfile(SExtractDest* dest, SAlzLocalFileHeader& file); private : // bzip2 ÆÄÀÏ Ã³¸® ÇÔ¼ö.. typedef void MYBZFILE; MYBZFILE* BZ2_bzReadOpen(int* bzerror, CUnAlz* f, int verbosity, int _small, void* unused, int nUnused); int BZ2_bzread(MYBZFILE* b, void* buf, int len ); int BZ2_bzRead(int* bzerror, MYBZFILE* b, void* buf, int len); void BZ2_bzReadClose( int *bzerror, MYBZFILE *b ); private : // ºÐÇÒ ¾ÐÃà ÆÄÀÏ Ã³¸®¸¦ À§ÇÑ ·¡ÆÛ(lapper^^?) Ŭ·¡½º BOOL FOpen(const char* szPathName); void FClose(); INT64 FTell(); BOOL FEof(); BOOL FSeek(INT64 offset); BOOL FRead(void* buffer, UINT32 nBytesToRead, int* pTotRead=NULL); BOOL IsDataDescr() { return m_bIsDataDescr; }; // xf86 int getPasswordLen() { return strlen(m_szPasswd); }; enum {MAX_FILES=1000}; ///< ó¸® °¡´ÉÇÑ ºÐÇÒ ¾ÐÃà ÆÄÀÏ ¼ö. enum {MULTIVOL_TAIL_SIZE=16,MULTIVOL_HEAD_SIZE=8}; ///< ºÐÇÒ ¾ÐÃà½Ã ²Ã¶ûÁö, Çì´õ Å©±â struct SFile ///< ºÐÇÒ ÆÄÀÏ Á¤º¸ { HANDLE fp; INT64 nFileSize; int nMultivolHeaderSize; int nMultivolTailSize; }; SFile m_files[MAX_FILES]; ///< ºÐÇÒ ÆÄÀÏ ÀúÀå array - ¹«½ÄÇÑ°¡? int m_nCurFile; ///< m_files ¿¡¼­ ÇöÀç ó¸®ÁßÀÎ ÆÄÀÏÀÇ À§Ä¡. int m_nFileCount; ///< ºÐÇÒ ÆÄÀÏ °¹¼ö.. INT64 m_nVirtualFilePos; ///< ¸ÖƼº¼·ý¿¡¼­ÀÇ °¡»óÀÇ À§Ä¡ INT64 m_nCurFilePos; ///< ÇöÀç ÆÄÀÏÀÇ ¹°¸®Àû À§Ä¡. BOOL m_bIsEOF; ///< ÆÄÀÏÀÇ ³¡±îÁö (ºÐÇÒ ÆÄÀÏ Æ÷ÇÔÇؼ­) ¿Ô³ª? BOOL m_bIsEncrypted; ///< by xf86 BOOL m_bIsDataDescr; #define UNALZ_LEN_PASSWORD 512 char m_szPasswd[UNALZ_LEN_PASSWORD]; BOOL m_bPipeMode; ///< pipemode - ¸Þ½ÃÁö Ãâ·Â¾øÀÌ stdout À¸·Î¸¸ Ãâ·Â private : /* from CZipArchive void CryptDecodeBuffer(UINT32 uCount, CHAR *buf); void CryptInitKeys(); void CryptUpdateKeys(CHAR c); BOOL CryptCheck(CHAR *buf); CHAR CryptDecryptCHAR(); void CryptDecode(CHAR &c); UINT32 CryptCRC32(UINT32 l, CHAR c); */ private : // encryption ó¸® BOOL IsEncryptedFile(BYTE fileDescriptor); BOOL IsEncryptedFile(); void InitCryptKeys(const CHAR* szPassword); void UpdateKeys(BYTE c); BOOL CryptCheck(const BYTE* buf); BYTE DecryptByte(); void DecryptingData(int nSize, BYTE* data); UINT32 CRC32(UINT32 l, BYTE c); UINT32 m_key[3]; private : FileList m_fileList; ///< ¾ÐÃàÆÄÀÏ ³»ÀÇ ÆÄÀÏ ¸ñ·Ï ERR m_nErr; FileList::iterator m_posCur; ///< ÇöÀç ÆÄÀÏ _UnAlzCallback* m_pFuncCallBack; void* m_pCallbackParam; BOOL m_bHalt; #ifdef _UNALZ_ICONV #define UNALZ_LEN_CODEPAGE 256 char m_szToCodepage[UNALZ_LEN_CODEPAGE]; ///< codepage char m_szFromCodepage[UNALZ_LEN_CODEPAGE]; ///< "CP949" #endif }; } using namespace UNALZ; #endif unalz/UnAlzBz2decompress.c00007000001040€ÿÿÿÿ0000005203511164602103020322 0ustar Administrators????????// ALZ ¾ÐÃà ÇØÁ¦¸¦ À§Çؼ­ ¼öÁ¤µÈ bzip2 ¼Ò½º // [ALZ] ¶ó°í Ç¥½ÃµÈ ºÎºÐÀÌ ¼öÁ¤µÈ ºÎºÐÀÌ´Ù. /*-------------------------------------------------------------*/ /*--- Decompression machinery ---*/ /*--- decompress.c ---*/ /*-------------------------------------------------------------*/ /* ------------------------------------------------------------------ This file is part of bzip2/libbzip2, a program and library for lossless, block-sorting data compression. bzip2/libbzip2 version 1.0.5 of 10 December 2007 Copyright (C) 1996-2007 Julian Seward Please read the WARNING, DISCLAIMER and PATENTS sections in the README file. This program is released under the terms of the license contained in the file LICENSE. ------------------------------------------------------------------ */ #include "bzip2/bzlib_private.h" /*---------------------------------------------------*/ static void makeMaps_d ( DState* s ) { Int32 i; s->nInUse = 0; for (i = 0; i < 256; i++) if (s->inUse[i]) { s->seqToUnseq[s->nInUse] = i; s->nInUse++; } } /*---------------------------------------------------*/ #define RETURN(rrr) \ { retVal = rrr; goto save_state_and_return; }; #define GET_BITS(lll,vvv,nnn) \ case lll: s->state = lll; \ while (True) { \ if (s->bsLive >= nnn) { \ UInt32 v; \ v = (s->bsBuff >> \ (s->bsLive-nnn)) & ((1 << nnn)-1); \ s->bsLive -= nnn; \ vvv = v; \ break; \ } \ if (s->strm->avail_in == 0) RETURN(BZ_OK); \ s->bsBuff \ = (s->bsBuff << 8) | \ ((UInt32) \ (*((UChar*)(s->strm->next_in)))); \ s->bsLive += 8; \ s->strm->next_in++; \ s->strm->avail_in--; \ s->strm->total_in_lo32++; \ if (s->strm->total_in_lo32 == 0) \ s->strm->total_in_hi32++; \ } #define GET_UCHAR(lll,uuu) \ GET_BITS(lll,uuu,8) #define GET_BIT(lll,uuu) \ GET_BITS(lll,uuu,1) /*---------------------------------------------------*/ #define GET_MTF_VAL(label1,label2,lval) \ { \ if (groupPos == 0) { \ groupNo++; \ if (groupNo >= nSelectors) \ RETURN(BZ_DATA_ERROR); \ groupPos = BZ_G_SIZE; \ gSel = s->selector[groupNo]; \ gMinlen = s->minLens[gSel]; \ gLimit = &(s->limit[gSel][0]); \ gPerm = &(s->perm[gSel][0]); \ gBase = &(s->base[gSel][0]); \ } \ groupPos--; \ zn = gMinlen; \ GET_BITS(label1, zvec, zn); \ while (1) { \ if (zn > 20 /* the longest code */) \ RETURN(BZ_DATA_ERROR); \ if (zvec <= gLimit[zn]) break; \ zn++; \ GET_BIT(label2, zj); \ zvec = (zvec << 1) | zj; \ }; \ if (zvec - gBase[zn] < 0 \ || zvec - gBase[zn] >= BZ_MAX_ALPHA_SIZE) \ RETURN(BZ_DATA_ERROR); \ lval = gPerm[zvec - gBase[zn]]; \ } /*---------------------------------------------------*/ Int32 BZ2_decompress ( DState* s ) { UChar uc; Int32 retVal; Int32 minLen, maxLen; bz_stream* strm = s->strm; /* stuff that needs to be saved/restored */ Int32 i; Int32 j; Int32 t; Int32 alphaSize; Int32 nGroups; Int32 nSelectors; Int32 EOB; Int32 groupNo; Int32 groupPos; Int32 nextSym; Int32 nblockMAX; Int32 nblock; Int32 es; Int32 N; Int32 curr; Int32 zt; Int32 zn; Int32 zvec; Int32 zj; Int32 gSel; Int32 gMinlen; Int32* gLimit; Int32* gBase; Int32* gPerm; if (s->state == BZ_X_MAGIC_1) { /*initialise the save area*/ s->save_i = 0; s->save_j = 0; s->save_t = 0; s->save_alphaSize = 0; s->save_nGroups = 0; s->save_nSelectors = 0; s->save_EOB = 0; s->save_groupNo = 0; s->save_groupPos = 0; s->save_nextSym = 0; s->save_nblockMAX = 0; s->save_nblock = 0; s->save_es = 0; s->save_N = 0; s->save_curr = 0; s->save_zt = 0; s->save_zn = 0; s->save_zvec = 0; s->save_zj = 0; s->save_gSel = 0; s->save_gMinlen = 0; s->save_gLimit = NULL; s->save_gBase = NULL; s->save_gPerm = NULL; } /*restore from the save area*/ i = s->save_i; j = s->save_j; t = s->save_t; alphaSize = s->save_alphaSize; nGroups = s->save_nGroups; nSelectors = s->save_nSelectors; EOB = s->save_EOB; groupNo = s->save_groupNo; groupPos = s->save_groupPos; nextSym = s->save_nextSym; nblockMAX = s->save_nblockMAX; nblock = s->save_nblock; es = s->save_es; N = s->save_N; curr = s->save_curr; zt = s->save_zt; zn = s->save_zn; zvec = s->save_zvec; zj = s->save_zj; gSel = s->save_gSel; gMinlen = s->save_gMinlen; gLimit = s->save_gLimit; gBase = s->save_gBase; gPerm = s->save_gPerm; retVal = BZ_OK; switch (s->state) { // [ALZ] - ¸Ó¸® ¶¼±â /* GET_UCHAR(BZ_X_MAGIC_1, uc); if (uc != BZ_HDR_B) RETURN(BZ_DATA_ERROR_MAGIC); GET_UCHAR(BZ_X_MAGIC_2, uc); if (uc != BZ_HDR_Z) RETURN(BZ_DATA_ERROR_MAGIC); GET_UCHAR(BZ_X_MAGIC_3, uc) if (uc != BZ_HDR_h) RETURN(BZ_DATA_ERROR_MAGIC); */ case BZ_X_MAGIC_1 : // ¾ø¾îÁø Çì´õ ÀÎ½Ä ´ë½Å // [ALZ] - blocksize ÁöÁ¤ ¾øÀ½ //GET_BITS(BZ_X_MAGIC_4, s->blockSize100k, 8) s->blockSize100k = 0x39; // static ÇÒ´ç. if (s->blockSize100k < (BZ_HDR_0 + 1) || s->blockSize100k > (BZ_HDR_0 + 9)) RETURN(BZ_DATA_ERROR_MAGIC); s->blockSize100k -= BZ_HDR_0; if (s->smallDecompress) { s->ll16 = BZALLOC( s->blockSize100k * 100000 * sizeof(UInt16) ); s->ll4 = BZALLOC( ((1 + s->blockSize100k * 100000) >> 1) * sizeof(UChar) ); if (s->ll16 == NULL || s->ll4 == NULL) RETURN(BZ_MEM_ERROR); } else { s->tt = BZALLOC( s->blockSize100k * 100000 * sizeof(Int32) ); if (s->tt == NULL) RETURN(BZ_MEM_ERROR); } GET_UCHAR(BZ_X_BLKHDR_1, uc); // [ALZ] - º¯ÇüµÈ Çì´õ if (uc != 'D') RETURN(BZ_DATA_ERROR_MAGIC); GET_UCHAR(BZ_X_BLKHDR_2, uc); if (uc != 'L') RETURN(BZ_DATA_ERROR_MAGIC); GET_UCHAR(BZ_X_BLKHDR_3, uc) if (uc != 'Z') RETURN(BZ_DATA_ERROR_MAGIC); GET_UCHAR(BZ_X_BLKHDR_4, uc) if (uc == 0x02) goto endhdr_2; if (uc != 0x01) RETURN(BZ_DATA_ERROR_MAGIC); /* [ALZ] - ¿ø·¡ Çì´õ if (uc == 0x17) goto endhdr_2; if (uc != 0x31) RETURN(BZ_DATA_ERROR); GET_UCHAR(BZ_X_BLKHDR_2, uc); if (uc != 0x41) RETURN(BZ_DATA_ERROR); GET_UCHAR(BZ_X_BLKHDR_3, uc); if (uc != 0x59) RETURN(BZ_DATA_ERROR); GET_UCHAR(BZ_X_BLKHDR_4, uc); if (uc != 0x26) RETURN(BZ_DATA_ERROR); GET_UCHAR(BZ_X_BLKHDR_5, uc); if (uc != 0x53) RETURN(BZ_DATA_ERROR); GET_UCHAR(BZ_X_BLKHDR_6, uc); if (uc != 0x59) RETURN(BZ_DATA_ERROR); */ s->currBlockNo++; if (s->verbosity >= 2) VPrintf1 ( "\n [%d: huff+mtf ", s->currBlockNo ); s->storedBlockCRC = 0; /* [ALZ] - crc »©±â GET_UCHAR(BZ_X_BCRC_1, uc); s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc); GET_UCHAR(BZ_X_BCRC_2, uc); s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc); GET_UCHAR(BZ_X_BCRC_3, uc); s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc); GET_UCHAR(BZ_X_BCRC_4, uc); s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc); */ // [ALZ] - 1bit ¾Æ³¢±â //GET_BITS(BZ_X_RANDBIT, s->blockRandomised, 1); s->origPtr = 0; GET_UCHAR(BZ_X_ORIGPTR_1, uc); s->origPtr = (s->origPtr << 8) | ((Int32)uc); GET_UCHAR(BZ_X_ORIGPTR_2, uc); s->origPtr = (s->origPtr << 8) | ((Int32)uc); GET_UCHAR(BZ_X_ORIGPTR_3, uc); s->origPtr = (s->origPtr << 8) | ((Int32)uc); if (s->origPtr < 0) RETURN(BZ_DATA_ERROR); if (s->origPtr > 10 + 100000*s->blockSize100k) RETURN(BZ_DATA_ERROR); /*--- Receive the mapping table ---*/ for (i = 0; i < 16; i++) { GET_BIT(BZ_X_MAPPING_1, uc); if (uc == 1) s->inUse16[i] = True; else s->inUse16[i] = False; } for (i = 0; i < 256; i++) s->inUse[i] = False; for (i = 0; i < 16; i++) if (s->inUse16[i]) for (j = 0; j < 16; j++) { GET_BIT(BZ_X_MAPPING_2, uc); if (uc == 1) s->inUse[i * 16 + j] = True; } makeMaps_d ( s ); if (s->nInUse == 0) RETURN(BZ_DATA_ERROR); alphaSize = s->nInUse+2; /*--- Now the selectors ---*/ GET_BITS(BZ_X_SELECTOR_1, nGroups, 3); if (nGroups < 2 || nGroups > 6) RETURN(BZ_DATA_ERROR); GET_BITS(BZ_X_SELECTOR_2, nSelectors, 15); if (nSelectors < 1) RETURN(BZ_DATA_ERROR); for (i = 0; i < nSelectors; i++) { j = 0; while (True) { GET_BIT(BZ_X_SELECTOR_3, uc); if (uc == 0) break; j++; if (j >= nGroups) RETURN(BZ_DATA_ERROR); } s->selectorMtf[i] = j; } /*--- Undo the MTF values for the selectors. ---*/ { UChar pos[BZ_N_GROUPS], tmp, v; for (v = 0; v < nGroups; v++) pos[v] = v; for (i = 0; i < nSelectors; i++) { v = s->selectorMtf[i]; tmp = pos[v]; while (v > 0) { pos[v] = pos[v-1]; v--; } pos[0] = tmp; s->selector[i] = tmp; } } /*--- Now the coding tables ---*/ for (t = 0; t < nGroups; t++) { GET_BITS(BZ_X_CODING_1, curr, 5); for (i = 0; i < alphaSize; i++) { while (True) { if (curr < 1 || curr > 20) RETURN(BZ_DATA_ERROR); GET_BIT(BZ_X_CODING_2, uc); if (uc == 0) break; GET_BIT(BZ_X_CODING_3, uc); if (uc == 0) curr++; else curr--; } s->len[t][i] = curr; } } /*--- Create the Huffman decoding tables ---*/ for (t = 0; t < nGroups; t++) { minLen = 32; maxLen = 0; for (i = 0; i < alphaSize; i++) { if (s->len[t][i] > maxLen) maxLen = s->len[t][i]; if (s->len[t][i] < minLen) minLen = s->len[t][i]; } BZ2_hbCreateDecodeTables ( &(s->limit[t][0]), &(s->base[t][0]), &(s->perm[t][0]), &(s->len[t][0]), minLen, maxLen, alphaSize ); s->minLens[t] = minLen; } /*--- Now the MTF values ---*/ EOB = s->nInUse+1; nblockMAX = 100000 * s->blockSize100k; groupNo = -1; groupPos = 0; for (i = 0; i <= 255; i++) s->unzftab[i] = 0; /*-- MTF init --*/ { Int32 ii, jj, kk; kk = MTFA_SIZE-1; for (ii = 256 / MTFL_SIZE - 1; ii >= 0; ii--) { for (jj = MTFL_SIZE-1; jj >= 0; jj--) { s->mtfa[kk] = (UChar)(ii * MTFL_SIZE + jj); kk--; } s->mtfbase[ii] = kk + 1; } } /*-- end MTF init --*/ nblock = 0; GET_MTF_VAL(BZ_X_MTF_1, BZ_X_MTF_2, nextSym); while (True) { if (nextSym == EOB) break; if (nextSym == BZ_RUNA || nextSym == BZ_RUNB) { es = -1; N = 1; do { if (nextSym == BZ_RUNA) es = es + (0+1) * N; else if (nextSym == BZ_RUNB) es = es + (1+1) * N; N = N * 2; GET_MTF_VAL(BZ_X_MTF_3, BZ_X_MTF_4, nextSym); } while (nextSym == BZ_RUNA || nextSym == BZ_RUNB); es++; uc = s->seqToUnseq[ s->mtfa[s->mtfbase[0]] ]; s->unzftab[uc] += es; if (s->smallDecompress) while (es > 0) { if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR); s->ll16[nblock] = (UInt16)uc; nblock++; es--; } else while (es > 0) { if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR); s->tt[nblock] = (UInt32)uc; nblock++; es--; }; continue; } else { if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR); /*-- uc = MTF ( nextSym-1 ) --*/ { Int32 ii, jj, kk, pp, lno, off; UInt32 nn; nn = (UInt32)(nextSym - 1); if (nn < MTFL_SIZE) { /* avoid general-case expense */ pp = s->mtfbase[0]; uc = s->mtfa[pp+nn]; while (nn > 3) { Int32 z = pp+nn; s->mtfa[(z) ] = s->mtfa[(z)-1]; s->mtfa[(z)-1] = s->mtfa[(z)-2]; s->mtfa[(z)-2] = s->mtfa[(z)-3]; s->mtfa[(z)-3] = s->mtfa[(z)-4]; nn -= 4; } while (nn > 0) { s->mtfa[(pp+nn)] = s->mtfa[(pp+nn)-1]; nn--; }; s->mtfa[pp] = uc; } else { /* general case */ lno = nn / MTFL_SIZE; off = nn % MTFL_SIZE; pp = s->mtfbase[lno] + off; uc = s->mtfa[pp]; while (pp > s->mtfbase[lno]) { s->mtfa[pp] = s->mtfa[pp-1]; pp--; }; s->mtfbase[lno]++; while (lno > 0) { s->mtfbase[lno]--; s->mtfa[s->mtfbase[lno]] = s->mtfa[s->mtfbase[lno-1] + MTFL_SIZE - 1]; lno--; } s->mtfbase[0]--; s->mtfa[s->mtfbase[0]] = uc; if (s->mtfbase[0] == 0) { kk = MTFA_SIZE-1; for (ii = 256 / MTFL_SIZE-1; ii >= 0; ii--) { for (jj = MTFL_SIZE-1; jj >= 0; jj--) { s->mtfa[kk] = s->mtfa[s->mtfbase[ii] + jj]; kk--; } s->mtfbase[ii] = kk + 1; } } } } /*-- end uc = MTF ( nextSym-1 ) --*/ s->unzftab[s->seqToUnseq[uc]]++; if (s->smallDecompress) s->ll16[nblock] = (UInt16)(s->seqToUnseq[uc]); else s->tt[nblock] = (UInt32)(s->seqToUnseq[uc]); nblock++; GET_MTF_VAL(BZ_X_MTF_5, BZ_X_MTF_6, nextSym); continue; } } /* Now we know what nblock is, we can do a better sanity check on s->origPtr. */ if (s->origPtr < 0 || s->origPtr >= nblock) RETURN(BZ_DATA_ERROR); /*-- Set up cftab to facilitate generation of T^(-1) --*/ s->cftab[0] = 0; for (i = 1; i <= 256; i++) s->cftab[i] = s->unzftab[i-1]; for (i = 1; i <= 256; i++) s->cftab[i] += s->cftab[i-1]; for (i = 0; i <= 256; i++) { if (s->cftab[i] < 0 || s->cftab[i] > nblock) { /* s->cftab[i] can legitimately be == nblock */ RETURN(BZ_DATA_ERROR); } } s->state_out_len = 0; s->state_out_ch = 0; BZ_INITIALISE_CRC ( s->calculatedBlockCRC ); s->state = BZ_X_OUTPUT; if (s->verbosity >= 2) VPrintf0 ( "rt+rld" ); if (s->smallDecompress) { /*-- Make a copy of cftab, used in generation of T --*/ for (i = 0; i <= 256; i++) s->cftabCopy[i] = s->cftab[i]; /*-- compute the T vector --*/ for (i = 0; i < nblock; i++) { uc = (UChar)(s->ll16[i]); SET_LL(i, s->cftabCopy[uc]); s->cftabCopy[uc]++; } /*-- Compute T^(-1) by pointer reversal on T --*/ i = s->origPtr; j = GET_LL(i); do { Int32 tmp = GET_LL(j); SET_LL(j, i); i = j; j = tmp; } while (i != s->origPtr); s->tPos = s->origPtr; s->nblock_used = 0; if (s->blockRandomised) { BZ_RAND_INIT_MASK; BZ_GET_SMALL(s->k0); s->nblock_used++; BZ_RAND_UPD_MASK; s->k0 ^= BZ_RAND_MASK; } else { BZ_GET_SMALL(s->k0); s->nblock_used++; } } else { /*-- compute the T^(-1) vector --*/ for (i = 0; i < nblock; i++) { uc = (UChar)(s->tt[i] & 0xff); s->tt[s->cftab[uc]] |= (i << 8); s->cftab[uc]++; } s->tPos = s->tt[s->origPtr] >> 8; s->nblock_used = 0; // [ALZ] - s->blockRandomised ´Â »ý·« µÇ¾ú´Ù. /* if (s->blockRandomised) { BZ_RAND_INIT_MASK; BZ_GET_FAST(s->k0); s->nblock_used++; BZ_RAND_UPD_MASK; s->k0 ^= BZ_RAND_MASK; } else*/ { BZ_GET_FAST(s->k0); s->nblock_used++; } } RETURN(BZ_OK); endhdr_2: // [ALZ] - ²¿¸® ¶¼±â /* GET_UCHAR(BZ_X_ENDHDR_2, uc); if (uc != 0x72) RETURN(BZ_DATA_ERROR); GET_UCHAR(BZ_X_ENDHDR_3, uc); if (uc != 0x45) RETURN(BZ_DATA_ERROR); GET_UCHAR(BZ_X_ENDHDR_4, uc); if (uc != 0x38) RETURN(BZ_DATA_ERROR); GET_UCHAR(BZ_X_ENDHDR_5, uc); if (uc != 0x50) RETURN(BZ_DATA_ERROR); GET_UCHAR(BZ_X_ENDHDR_6, uc); if (uc != 0x90) RETURN(BZ_DATA_ERROR); s->storedCombinedCRC = 0; GET_UCHAR(BZ_X_CCRC_1, uc); s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc); GET_UCHAR(BZ_X_CCRC_2, uc); s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc); GET_UCHAR(BZ_X_CCRC_3, uc); s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc); GET_UCHAR(BZ_X_CCRC_4, uc); s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc); */ s->state = BZ_X_IDLE; RETURN(BZ_STREAM_END); default: AssertH ( False, 4001 ); } AssertH ( False, 4002 ); save_state_and_return: s->save_i = i; s->save_j = j; s->save_t = t; s->save_alphaSize = alphaSize; s->save_nGroups = nGroups; s->save_nSelectors = nSelectors; s->save_EOB = EOB; s->save_groupNo = groupNo; s->save_groupPos = groupPos; s->save_nextSym = nextSym; s->save_nblockMAX = nblockMAX; s->save_nblock = nblock; s->save_es = es; s->save_N = N; s->save_curr = curr; s->save_zt = zt; s->save_zn = zn; s->save_zvec = zvec; s->save_zj = zj; s->save_gSel = gSel; s->save_gMinlen = gMinlen; s->save_gLimit = gLimit; s->save_gBase = gBase; s->save_gPerm = gPerm; return retVal; } /*-------------------------------------------------------------*/ /*--- end decompress.c ---*/ /*-------------------------------------------------------------*/ unalz/UnAlzBzip2.cpp00007000001040€ÿÿÿÿ0000001161010607420150017121 0ustar Administrators????????//////////////////////////////////////////////////////////////////////////////////////////////////// /// /// bzip2 °ü·Ã file i/o ÇÔ¼öµé - ¿ø·¡ UnAlzbzlib.c (bzlib.c) ¿¡ ÀÖ´ø ÇÔ¼öµéÀº ºÐÇÒ ¾ÐÃà 󸮸¦ À§Çؼ­ /// ¾à°£ÀÇ ¼öÁ¤À» °¡ÇÑ ¼Ò½ºµéÀÌ´Ù.. /// FILE* handle °ü·Ã ºÎºÐµéÀÌ ¼öÁ¤µÇ¾ú´Ù. /// /// @author kippler@gmail.com /// @date 2004-10-03 ¿ÀÈÄ 3:09:11 /// //////////////////////////////////////////////////////////////////////////////////////////////////// //#include "stdafx.h" #include "zlib/zlib.h" #include "bzip2/bzlib.h" #include "bzip2/bzlib_private.h" #include "UnAlz.h" typedef struct { CUnAlz* handle; Char buf[BZ_MAX_UNUSED]; Int32 bufN; Bool writing; bz_stream strm; Int32 lastErr; Bool initialisedOk; } MybzFile; #define BZ_SETERR(eee){if (bzerror != NULL) *bzerror = eee;if (bzf != NULL) bzf->lastErr = eee;} //////////////////////////////////////////////////////////////////////////////////////////////////// /// BZIP2 ÆÄÀÏ Ã³¸® ÇÔ¼ö /// @param bzerror /// @param f /// @param verbosity /// @param _small /// @param unused /// @param nUnused /// @return /// @date 2004-10-03 ¿ÀÀü 3:16:45 //////////////////////////////////////////////////////////////////////////////////////////////////// CUnAlz::MYBZFILE* CUnAlz::BZ2_bzReadOpen(int* bzerror, CUnAlz* f, int verbosity, int _small,void* unused, int nUnused) { MybzFile* bzf = NULL; int ret; BZ_SETERR(BZ_OK); if (f == NULL || (_small != 0 && _small != 1) || (verbosity < 0 || verbosity > 4) || (unused == NULL && nUnused != 0) || (unused != NULL && (nUnused < 0 || nUnused > BZ_MAX_UNUSED))) { BZ_SETERR(BZ_PARAM_ERROR); return NULL; }; // if (f->FEof()) // { BZ_SETERR(BZ_IO_ERROR); return NULL; }; bzf = (MybzFile*)malloc ( sizeof(MybzFile) ); if (bzf == NULL) { BZ_SETERR(BZ_MEM_ERROR); return NULL; }; BZ_SETERR(BZ_OK); bzf->initialisedOk = False; bzf->handle = f; bzf->bufN = 0; bzf->writing = False; bzf->strm.bzalloc = NULL; bzf->strm.bzfree = NULL; bzf->strm.opaque = NULL; while (nUnused > 0) { bzf->buf[bzf->bufN] = *((UChar*)(unused)); bzf->bufN++; unused = ((void*)( 1 + ((UChar*)(unused)) )); nUnused--; } ret = BZ2_bzDecompressInit ( &(bzf->strm), verbosity, _small ); if (ret != BZ_OK) { BZ_SETERR(ret); free(bzf); return NULL; }; bzf->strm.avail_in = bzf->bufN; bzf->strm.next_in = bzf->buf; bzf->initialisedOk = True; return bzf; } int CUnAlz::BZ2_bzread(MYBZFILE* b, void* buf, int len ) { int bzerr, nread; if (((MybzFile*)b)->lastErr == BZ_STREAM_END) return 0; nread = BZ2_bzRead(&bzerr,b,buf,len); if (bzerr == BZ_OK || bzerr == BZ_STREAM_END) { return nread; } else { return -1; } } int CUnAlz::BZ2_bzRead(int* bzerror, MYBZFILE* b, void* buf, int len) { Int32 n, ret; MybzFile* bzf = (MybzFile*)b; BOOL bIsEncrypted = bzf->handle->IsEncryptedFile(); // ¾ÏÈ£°É¸° ÆÄÀÏÀΰ¡? BZ_SETERR(BZ_OK); if (bzf == NULL || buf == NULL || len < 0) { BZ_SETERR(BZ_PARAM_ERROR); return 0; }; if (bzf->writing) { BZ_SETERR(BZ_SEQUENCE_ERROR); return 0; }; if (len == 0) { BZ_SETERR(BZ_OK); return 0; }; bzf->strm.avail_out = len; bzf->strm.next_out = (char*)buf; while (True) { // if (ferror(bzf->handle)) // { BZ_SETERR(BZ_IO_ERROR); return 0; }; if (bzf->strm.avail_in == 0 && !bzf->handle->FEof()) { bzf->handle->FRead(bzf->buf, sizeof(UChar)*BZ_MAX_UNUSED, &n); if(bIsEncrypted) bzf->handle->DecryptingData(n, (BYTE *)bzf->buf); // xf86 NOT tested -> tested if(n==0) { BZ_SETERR(BZ_IO_ERROR); return 0; }; bzf->bufN = n; bzf->strm.avail_in = bzf->bufN; bzf->strm.next_in = bzf->buf; } ret = BZ2_bzDecompress ( &(bzf->strm) ); if (ret != BZ_OK && ret != BZ_STREAM_END) { BZ_SETERR(ret); return 0; }; if (ret == BZ_OK && bzf->handle->FEof() && bzf->strm.avail_in == 0 && bzf->strm.avail_out > 0) { BZ_SETERR(BZ_UNEXPECTED_EOF); return 0; }; if (ret == BZ_STREAM_END) { BZ_SETERR(BZ_STREAM_END); return len - bzf->strm.avail_out; }; if (bzf->strm.avail_out == 0) { BZ_SETERR(BZ_OK); return len; }; } return 0; /*not reached*/ } void CUnAlz::BZ2_bzReadClose( int *bzerror, MYBZFILE *b ) { MybzFile* bzf = (MybzFile*)b; BZ_SETERR(BZ_OK); if (bzf == NULL) { BZ_SETERR(BZ_OK); return; }; if (bzf->writing) { BZ_SETERR(BZ_SEQUENCE_ERROR); return; }; if (bzf->initialisedOk) (void)BZ2_bzDecompressEnd ( &(bzf->strm) ); free ( bzf ); } unalz/UnAlzbzlib.c00007000001040€ÿÿÿÿ0000013621411164600511016705 0ustar Administrators????????//////////////////////////////////////////////////////////////////////////////////////////////////// /// /// modified for .alz handling /// /// @author kippler@gmail.com /// @date 2007-04-12 ¿ÀÈÄ 9:06:32 /// //////////////////////////////////////////////////////////////////////////////////////////////////// // ALZ ¾ÐÃà ÇØÁ¦¸¦ À§Çؼ­ ¼öÁ¤µÈ bzip2 ¼Ò½º // [ALZ] ¶ó°í Ç¥½ÃµÈ ºÎºÐÀÌ ¼öÁ¤µÈ ºÎºÐÀÌ´Ù. #ifdef _WIN32 # pragma warning( disable : 4996 ) // crt secure warning #endif /*-------------------------------------------------------------*/ /*--- Library top-level functions. ---*/ /*--- bzlib.c ---*/ /*-------------------------------------------------------------*/ /* ------------------------------------------------------------------ This file is part of bzip2/libbzip2, a program and library for lossless, block-sorting data compression. bzip2/libbzip2 version 1.0.5 of 10 December 2007 Copyright (C) 1996-2007 Julian Seward Please read the WARNING, DISCLAIMER and PATENTS sections in the README file. This program is released under the terms of the license contained in the file LICENSE. ------------------------------------------------------------------ */ /* CHANGES 0.9.0 -- original version. 0.9.0a/b -- no changes in this file. 0.9.0c -- made zero-length BZ_FLUSH work correctly in bzCompress(). fixed bzWrite/bzRead to ignore zero-length requests. fixed bzread to correctly handle read requests after EOF. wrong parameter order in call to bzDecompressInit in bzBuffToBuffDecompress. Fixed. */ #include "bzip2/bzlib_private.h" /*---------------------------------------------------*/ /*--- Compression stuff ---*/ /*---------------------------------------------------*/ /*---------------------------------------------------*/ #ifndef BZ_NO_STDIO void BZ2_bz__AssertH__fail ( int errcode ) { fprintf(stderr, "\n\nbzip2/libbzip2: internal error number %d.\n" "This is a bug in bzip2/libbzip2, %s.\n" "Please report it to me at: jseward@bzip.org. If this happened\n" "when you were using some program which uses libbzip2 as a\n" "component, you should also report this bug to the author(s)\n" "of that program. Please make an effort to report this bug;\n" "timely and accurate bug reports eventually lead to higher\n" "quality software. Thanks. Julian Seward, 10 December 2007.\n\n", errcode, BZ2_bzlibVersion() ); if (errcode == 1007) { fprintf(stderr, "\n*** A special note about internal error number 1007 ***\n" "\n" "Experience suggests that a common cause of i.e. 1007\n" "is unreliable memory or other hardware. The 1007 assertion\n" "just happens to cross-check the results of huge numbers of\n" "memory reads/writes, and so acts (unintendedly) as a stress\n" "test of your memory system.\n" "\n" "I suggest the following: try compressing the file again,\n" "possibly monitoring progress in detail with the -vv flag.\n" "\n" "* If the error cannot be reproduced, and/or happens at different\n" " points in compression, you may have a flaky memory system.\n" " Try a memory-test program. I have used Memtest86\n" " (www.memtest86.com). At the time of writing it is free (GPLd).\n" " Memtest86 tests memory much more thorougly than your BIOSs\n" " power-on test, and may find failures that the BIOS doesn't.\n" "\n" "* If the error can be repeatably reproduced, this is a bug in\n" " bzip2, and I would very much like to hear about it. Please\n" " let me know, and, ideally, save a copy of the file causing the\n" " problem -- without which I will be unable to investigate it.\n" "\n" ); } exit(3); } #endif /*---------------------------------------------------*/ static int bz_config_ok ( void ) { if (sizeof(int) != 4) return 0; if (sizeof(short) != 2) return 0; if (sizeof(char) != 1) return 0; return 1; } /*---------------------------------------------------*/ static void* default_bzalloc ( void* opaque, Int32 items, Int32 size ) { void* v = malloc ( items * size ); return v; } static void default_bzfree ( void* opaque, void* addr ) { if (addr != NULL) free ( addr ); } /*---------------------------------------------------*/ static void prepare_new_block ( EState* s ) { Int32 i; s->nblock = 0; s->numZ = 0; s->state_out_pos = 0; BZ_INITIALISE_CRC ( s->blockCRC ); for (i = 0; i < 256; i++) s->inUse[i] = False; s->blockNo++; } /*---------------------------------------------------*/ static void init_RL ( EState* s ) { s->state_in_ch = 256; s->state_in_len = 0; } static Bool isempty_RL ( EState* s ) { if (s->state_in_ch < 256 && s->state_in_len > 0) return False; else return True; } /*---------------------------------------------------*/ int BZ_API(BZ2_bzCompressInit) ( bz_stream* strm, int blockSize100k, int verbosity, int workFactor ) { Int32 n; EState* s; if (!bz_config_ok()) return BZ_CONFIG_ERROR; if (strm == NULL || blockSize100k < 1 || blockSize100k > 9 || workFactor < 0 || workFactor > 250) return BZ_PARAM_ERROR; if (workFactor == 0) workFactor = 30; if (strm->bzalloc == NULL) strm->bzalloc = default_bzalloc; if (strm->bzfree == NULL) strm->bzfree = default_bzfree; s = BZALLOC( sizeof(EState) ); if (s == NULL) return BZ_MEM_ERROR; s->strm = strm; s->arr1 = NULL; s->arr2 = NULL; s->ftab = NULL; n = 100000 * blockSize100k; s->arr1 = BZALLOC( n * sizeof(UInt32) ); s->arr2 = BZALLOC( (n+BZ_N_OVERSHOOT) * sizeof(UInt32) ); s->ftab = BZALLOC( 65537 * sizeof(UInt32) ); if (s->arr1 == NULL || s->arr2 == NULL || s->ftab == NULL) { if (s->arr1 != NULL) BZFREE(s->arr1); if (s->arr2 != NULL) BZFREE(s->arr2); if (s->ftab != NULL) BZFREE(s->ftab); if (s != NULL) BZFREE(s); return BZ_MEM_ERROR; } s->blockNo = 0; s->state = BZ_S_INPUT; s->mode = BZ_M_RUNNING; s->combinedCRC = 0; s->blockSize100k = blockSize100k; s->nblockMAX = 100000 * blockSize100k - 19; s->verbosity = verbosity; s->workFactor = workFactor; s->block = (UChar*)s->arr2; s->mtfv = (UInt16*)s->arr1; s->zbits = NULL; s->ptr = (UInt32*)s->arr1; strm->state = s; strm->total_in_lo32 = 0; strm->total_in_hi32 = 0; strm->total_out_lo32 = 0; strm->total_out_hi32 = 0; init_RL ( s ); prepare_new_block ( s ); return BZ_OK; } /*---------------------------------------------------*/ static void add_pair_to_block ( EState* s ) { Int32 i; UChar ch = (UChar)(s->state_in_ch); for (i = 0; i < s->state_in_len; i++) { BZ_UPDATE_CRC( s->blockCRC, ch ); } s->inUse[s->state_in_ch] = True; switch (s->state_in_len) { case 1: s->block[s->nblock] = (UChar)ch; s->nblock++; break; case 2: s->block[s->nblock] = (UChar)ch; s->nblock++; s->block[s->nblock] = (UChar)ch; s->nblock++; break; case 3: s->block[s->nblock] = (UChar)ch; s->nblock++; s->block[s->nblock] = (UChar)ch; s->nblock++; s->block[s->nblock] = (UChar)ch; s->nblock++; break; default: s->inUse[s->state_in_len-4] = True; s->block[s->nblock] = (UChar)ch; s->nblock++; s->block[s->nblock] = (UChar)ch; s->nblock++; s->block[s->nblock] = (UChar)ch; s->nblock++; s->block[s->nblock] = (UChar)ch; s->nblock++; s->block[s->nblock] = ((UChar)(s->state_in_len-4)); s->nblock++; break; } } /*---------------------------------------------------*/ static void flush_RL ( EState* s ) { if (s->state_in_ch < 256) add_pair_to_block ( s ); init_RL ( s ); } /*---------------------------------------------------*/ #define ADD_CHAR_TO_BLOCK(zs,zchh0) \ { \ UInt32 zchh = (UInt32)(zchh0); \ /*-- fast track the common case --*/ \ if (zchh != zs->state_in_ch && \ zs->state_in_len == 1) { \ UChar ch = (UChar)(zs->state_in_ch); \ BZ_UPDATE_CRC( zs->blockCRC, ch ); \ zs->inUse[zs->state_in_ch] = True; \ zs->block[zs->nblock] = (UChar)ch; \ zs->nblock++; \ zs->state_in_ch = zchh; \ } \ else \ /*-- general, uncommon cases --*/ \ if (zchh != zs->state_in_ch || \ zs->state_in_len == 255) { \ if (zs->state_in_ch < 256) \ add_pair_to_block ( zs ); \ zs->state_in_ch = zchh; \ zs->state_in_len = 1; \ } else { \ zs->state_in_len++; \ } \ } /*---------------------------------------------------*/ static Bool copy_input_until_stop ( EState* s ) { Bool progress_in = False; if (s->mode == BZ_M_RUNNING) { /*-- fast track the common case --*/ while (True) { /*-- block full? --*/ if (s->nblock >= s->nblockMAX) break; /*-- no input? --*/ if (s->strm->avail_in == 0) break; progress_in = True; ADD_CHAR_TO_BLOCK ( s, (UInt32)(*((UChar*)(s->strm->next_in))) ); s->strm->next_in++; s->strm->avail_in--; s->strm->total_in_lo32++; if (s->strm->total_in_lo32 == 0) s->strm->total_in_hi32++; } } else { /*-- general, uncommon case --*/ while (True) { /*-- block full? --*/ if (s->nblock >= s->nblockMAX) break; /*-- no input? --*/ if (s->strm->avail_in == 0) break; /*-- flush/finish end? --*/ if (s->avail_in_expect == 0) break; progress_in = True; ADD_CHAR_TO_BLOCK ( s, (UInt32)(*((UChar*)(s->strm->next_in))) ); s->strm->next_in++; s->strm->avail_in--; s->strm->total_in_lo32++; if (s->strm->total_in_lo32 == 0) s->strm->total_in_hi32++; s->avail_in_expect--; } } return progress_in; } /*---------------------------------------------------*/ static Bool copy_output_until_stop ( EState* s ) { Bool progress_out = False; while (True) { /*-- no output space? --*/ if (s->strm->avail_out == 0) break; /*-- block done? --*/ if (s->state_out_pos >= s->numZ) break; progress_out = True; *(s->strm->next_out) = s->zbits[s->state_out_pos]; s->state_out_pos++; s->strm->avail_out--; s->strm->next_out++; s->strm->total_out_lo32++; if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++; } return progress_out; } /*---------------------------------------------------*/ static Bool handle_compress ( bz_stream* strm ) { Bool progress_in = False; Bool progress_out = False; EState* s = strm->state; while (True) { if (s->state == BZ_S_OUTPUT) { progress_out |= copy_output_until_stop ( s ); if (s->state_out_pos < s->numZ) break; if (s->mode == BZ_M_FINISHING && s->avail_in_expect == 0 && isempty_RL(s)) break; prepare_new_block ( s ); s->state = BZ_S_INPUT; if (s->mode == BZ_M_FLUSHING && s->avail_in_expect == 0 && isempty_RL(s)) break; } if (s->state == BZ_S_INPUT) { progress_in |= copy_input_until_stop ( s ); if (s->mode != BZ_M_RUNNING && s->avail_in_expect == 0) { flush_RL ( s ); BZ2_compressBlock ( s, (Bool)(s->mode == BZ_M_FINISHING) ); s->state = BZ_S_OUTPUT; } else if (s->nblock >= s->nblockMAX) { BZ2_compressBlock ( s, False ); s->state = BZ_S_OUTPUT; } else if (s->strm->avail_in == 0) { break; } } } return progress_in || progress_out; } /*---------------------------------------------------*/ int BZ_API(BZ2_bzCompress) ( bz_stream *strm, int action ) { Bool progress; EState* s; if (strm == NULL) return BZ_PARAM_ERROR; s = strm->state; if (s == NULL) return BZ_PARAM_ERROR; if (s->strm != strm) return BZ_PARAM_ERROR; preswitch: switch (s->mode) { case BZ_M_IDLE: return BZ_SEQUENCE_ERROR; case BZ_M_RUNNING: if (action == BZ_RUN) { progress = handle_compress ( strm ); return progress ? BZ_RUN_OK : BZ_PARAM_ERROR; } else if (action == BZ_FLUSH) { s->avail_in_expect = strm->avail_in; s->mode = BZ_M_FLUSHING; goto preswitch; } else if (action == BZ_FINISH) { s->avail_in_expect = strm->avail_in; s->mode = BZ_M_FINISHING; goto preswitch; } else return BZ_PARAM_ERROR; case BZ_M_FLUSHING: if (action != BZ_FLUSH) return BZ_SEQUENCE_ERROR; if (s->avail_in_expect != s->strm->avail_in) return BZ_SEQUENCE_ERROR; progress = handle_compress ( strm ); if (s->avail_in_expect > 0 || !isempty_RL(s) || s->state_out_pos < s->numZ) return BZ_FLUSH_OK; s->mode = BZ_M_RUNNING; return BZ_RUN_OK; case BZ_M_FINISHING: if (action != BZ_FINISH) return BZ_SEQUENCE_ERROR; if (s->avail_in_expect != s->strm->avail_in) return BZ_SEQUENCE_ERROR; progress = handle_compress ( strm ); if (!progress) return BZ_SEQUENCE_ERROR; if (s->avail_in_expect > 0 || !isempty_RL(s) || s->state_out_pos < s->numZ) return BZ_FINISH_OK; s->mode = BZ_M_IDLE; return BZ_STREAM_END; } return BZ_OK; /*--not reached--*/ } /*---------------------------------------------------*/ int BZ_API(BZ2_bzCompressEnd) ( bz_stream *strm ) { EState* s; if (strm == NULL) return BZ_PARAM_ERROR; s = strm->state; if (s == NULL) return BZ_PARAM_ERROR; if (s->strm != strm) return BZ_PARAM_ERROR; if (s->arr1 != NULL) BZFREE(s->arr1); if (s->arr2 != NULL) BZFREE(s->arr2); if (s->ftab != NULL) BZFREE(s->ftab); BZFREE(strm->state); strm->state = NULL; return BZ_OK; } /*---------------------------------------------------*/ /*--- Decompression stuff ---*/ /*---------------------------------------------------*/ /*---------------------------------------------------*/ int BZ_API(BZ2_bzDecompressInit) ( bz_stream* strm, int verbosity, int small ) { DState* s; if (!bz_config_ok()) return BZ_CONFIG_ERROR; if (strm == NULL) return BZ_PARAM_ERROR; if (small != 0 && small != 1) return BZ_PARAM_ERROR; if (verbosity < 0 || verbosity > 4) return BZ_PARAM_ERROR; if (strm->bzalloc == NULL) strm->bzalloc = default_bzalloc; if (strm->bzfree == NULL) strm->bzfree = default_bzfree; s = BZALLOC( sizeof(DState) ); if (s == NULL) return BZ_MEM_ERROR; s->strm = strm; strm->state = s; s->state = BZ_X_MAGIC_1; s->bsLive = 0; s->bsBuff = 0; s->calculatedCombinedCRC = 0; strm->total_in_lo32 = 0; strm->total_in_hi32 = 0; strm->total_out_lo32 = 0; strm->total_out_hi32 = 0; s->smallDecompress = (Bool)small; s->ll4 = NULL; s->ll16 = NULL; s->tt = NULL; s->currBlockNo = 0; s->verbosity = verbosity; return BZ_OK; } /*---------------------------------------------------*/ /* Return True iff data corruption is discovered. Returns False if there is no problem. */ static Bool unRLE_obuf_to_output_FAST ( DState* s ) { UChar k1; if (s->blockRandomised) { while (True) { /* try to finish existing run */ while (True) { if (s->strm->avail_out == 0) return False; if (s->state_out_len == 0) break; *( (UChar*)(s->strm->next_out) ) = s->state_out_ch; BZ_UPDATE_CRC ( s->calculatedBlockCRC, s->state_out_ch ); s->state_out_len--; s->strm->next_out++; s->strm->avail_out--; s->strm->total_out_lo32++; if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++; } /* can a new run be started? */ if (s->nblock_used == s->save_nblock+1) return False; /* Only caused by corrupt data stream? */ if (s->nblock_used > s->save_nblock+1) return True; s->state_out_len = 1; s->state_out_ch = s->k0; BZ_GET_FAST(k1); BZ_RAND_UPD_MASK; k1 ^= BZ_RAND_MASK; s->nblock_used++; if (s->nblock_used == s->save_nblock+1) continue; if (k1 != s->k0) { s->k0 = k1; continue; }; s->state_out_len = 2; BZ_GET_FAST(k1); BZ_RAND_UPD_MASK; k1 ^= BZ_RAND_MASK; s->nblock_used++; if (s->nblock_used == s->save_nblock+1) continue; if (k1 != s->k0) { s->k0 = k1; continue; }; s->state_out_len = 3; BZ_GET_FAST(k1); BZ_RAND_UPD_MASK; k1 ^= BZ_RAND_MASK; s->nblock_used++; if (s->nblock_used == s->save_nblock+1) continue; if (k1 != s->k0) { s->k0 = k1; continue; }; BZ_GET_FAST(k1); BZ_RAND_UPD_MASK; k1 ^= BZ_RAND_MASK; s->nblock_used++; s->state_out_len = ((Int32)k1) + 4; BZ_GET_FAST(s->k0); BZ_RAND_UPD_MASK; s->k0 ^= BZ_RAND_MASK; s->nblock_used++; } } else { /* restore */ UInt32 c_calculatedBlockCRC = s->calculatedBlockCRC; UChar c_state_out_ch = s->state_out_ch; Int32 c_state_out_len = s->state_out_len; Int32 c_nblock_used = s->nblock_used; Int32 c_k0 = s->k0; UInt32* c_tt = s->tt; UInt32 c_tPos = s->tPos; char* cs_next_out = s->strm->next_out; unsigned int cs_avail_out = s->strm->avail_out; Int32 ro_blockSize100k = s->blockSize100k; /* end restore */ UInt32 avail_out_INIT = cs_avail_out; Int32 s_save_nblockPP = s->save_nblock+1; unsigned int total_out_lo32_old; while (True) { /* try to finish existing run */ if (c_state_out_len > 0) { while (True) { if (cs_avail_out == 0) goto return_notr; if (c_state_out_len == 1) break; *( (UChar*)(cs_next_out) ) = c_state_out_ch; BZ_UPDATE_CRC ( c_calculatedBlockCRC, c_state_out_ch ); c_state_out_len--; cs_next_out++; cs_avail_out--; } s_state_out_len_eq_one: { if (cs_avail_out == 0) { c_state_out_len = 1; goto return_notr; }; *( (UChar*)(cs_next_out) ) = c_state_out_ch; BZ_UPDATE_CRC ( c_calculatedBlockCRC, c_state_out_ch ); cs_next_out++; cs_avail_out--; } } /* Only caused by corrupt data stream? */ if (c_nblock_used > s_save_nblockPP) return True; /* can a new run be started? */ if (c_nblock_used == s_save_nblockPP) { c_state_out_len = 0; goto return_notr; }; c_state_out_ch = c_k0; BZ_GET_FAST_C(k1); c_nblock_used++; if (k1 != c_k0) { c_k0 = k1; goto s_state_out_len_eq_one; }; if (c_nblock_used == s_save_nblockPP) goto s_state_out_len_eq_one; c_state_out_len = 2; BZ_GET_FAST_C(k1); c_nblock_used++; if (c_nblock_used == s_save_nblockPP) continue; if (k1 != c_k0) { c_k0 = k1; continue; }; c_state_out_len = 3; BZ_GET_FAST_C(k1); c_nblock_used++; if (c_nblock_used == s_save_nblockPP) continue; if (k1 != c_k0) { c_k0 = k1; continue; }; BZ_GET_FAST_C(k1); c_nblock_used++; c_state_out_len = ((Int32)k1) + 4; BZ_GET_FAST_C(c_k0); c_nblock_used++; } return_notr: total_out_lo32_old = s->strm->total_out_lo32; s->strm->total_out_lo32 += (avail_out_INIT - cs_avail_out); if (s->strm->total_out_lo32 < total_out_lo32_old) s->strm->total_out_hi32++; /* save */ s->calculatedBlockCRC = c_calculatedBlockCRC; s->state_out_ch = c_state_out_ch; s->state_out_len = c_state_out_len; s->nblock_used = c_nblock_used; s->k0 = c_k0; s->tt = c_tt; s->tPos = c_tPos; s->strm->next_out = cs_next_out; s->strm->avail_out = cs_avail_out; /* end save */ } return False; } /*---------------------------------------------------*/ __inline__ Int32 BZ2_indexIntoF ( Int32 indx, Int32 *cftab ) { Int32 nb, na, mid; nb = 0; na = 256; do { mid = (nb + na) >> 1; if (indx >= cftab[mid]) nb = mid; else na = mid; } while (na - nb != 1); return nb; } /*---------------------------------------------------*/ /* Return True iff data corruption is discovered. Returns False if there is no problem. */ static Bool unRLE_obuf_to_output_SMALL ( DState* s ) { UChar k1; if (s->blockRandomised) { while (True) { /* try to finish existing run */ while (True) { if (s->strm->avail_out == 0) return False; if (s->state_out_len == 0) break; *( (UChar*)(s->strm->next_out) ) = s->state_out_ch; BZ_UPDATE_CRC ( s->calculatedBlockCRC, s->state_out_ch ); s->state_out_len--; s->strm->next_out++; s->strm->avail_out--; s->strm->total_out_lo32++; if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++; } /* can a new run be started? */ if (s->nblock_used == s->save_nblock+1) return False; /* Only caused by corrupt data stream? */ if (s->nblock_used > s->save_nblock+1) return True; s->state_out_len = 1; s->state_out_ch = s->k0; BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK; k1 ^= BZ_RAND_MASK; s->nblock_used++; if (s->nblock_used == s->save_nblock+1) continue; if (k1 != s->k0) { s->k0 = k1; continue; }; s->state_out_len = 2; BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK; k1 ^= BZ_RAND_MASK; s->nblock_used++; if (s->nblock_used == s->save_nblock+1) continue; if (k1 != s->k0) { s->k0 = k1; continue; }; s->state_out_len = 3; BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK; k1 ^= BZ_RAND_MASK; s->nblock_used++; if (s->nblock_used == s->save_nblock+1) continue; if (k1 != s->k0) { s->k0 = k1; continue; }; BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK; k1 ^= BZ_RAND_MASK; s->nblock_used++; s->state_out_len = ((Int32)k1) + 4; BZ_GET_SMALL(s->k0); BZ_RAND_UPD_MASK; s->k0 ^= BZ_RAND_MASK; s->nblock_used++; } } else { while (True) { /* try to finish existing run */ while (True) { if (s->strm->avail_out == 0) return False; if (s->state_out_len == 0) break; *( (UChar*)(s->strm->next_out) ) = s->state_out_ch; BZ_UPDATE_CRC ( s->calculatedBlockCRC, s->state_out_ch ); s->state_out_len--; s->strm->next_out++; s->strm->avail_out--; s->strm->total_out_lo32++; if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++; } /* can a new run be started? */ if (s->nblock_used == s->save_nblock+1) return False; /* Only caused by corrupt data stream? */ if (s->nblock_used > s->save_nblock+1) return True; s->state_out_len = 1; s->state_out_ch = s->k0; BZ_GET_SMALL(k1); s->nblock_used++; if (s->nblock_used == s->save_nblock+1) continue; if (k1 != s->k0) { s->k0 = k1; continue; }; s->state_out_len = 2; BZ_GET_SMALL(k1); s->nblock_used++; if (s->nblock_used == s->save_nblock+1) continue; if (k1 != s->k0) { s->k0 = k1; continue; }; s->state_out_len = 3; BZ_GET_SMALL(k1); s->nblock_used++; if (s->nblock_used == s->save_nblock+1) continue; if (k1 != s->k0) { s->k0 = k1; continue; }; BZ_GET_SMALL(k1); s->nblock_used++; s->state_out_len = ((Int32)k1) + 4; BZ_GET_SMALL(s->k0); s->nblock_used++; } } } /*---------------------------------------------------*/ int BZ_API(BZ2_bzDecompress) ( bz_stream *strm ) { Bool corrupt; DState* s; if (strm == NULL) return BZ_PARAM_ERROR; s = strm->state; if (s == NULL) return BZ_PARAM_ERROR; if (s->strm != strm) return BZ_PARAM_ERROR; while (True) { if (s->state == BZ_X_IDLE) return BZ_SEQUENCE_ERROR; if (s->state == BZ_X_OUTPUT) { if (s->smallDecompress) corrupt = unRLE_obuf_to_output_SMALL ( s ); else corrupt = unRLE_obuf_to_output_FAST ( s ); if (corrupt) return BZ_DATA_ERROR; if (s->nblock_used == s->save_nblock+1 && s->state_out_len == 0) { BZ_FINALISE_CRC ( s->calculatedBlockCRC ); if (s->verbosity >= 3) VPrintf2 ( " {0x%08x, 0x%08x}", s->storedBlockCRC, s->calculatedBlockCRC ); if (s->verbosity >= 2) VPrintf0 ( "]" ); // [ALZ] // if (s->calculatedBlockCRC != s->storedBlockCRC) // return BZ_DATA_ERROR; s->calculatedCombinedCRC = (s->calculatedCombinedCRC << 1) | (s->calculatedCombinedCRC >> 31); s->calculatedCombinedCRC ^= s->calculatedBlockCRC; s->state = BZ_X_BLKHDR_1; } else { return BZ_OK; } } if (s->state >= BZ_X_MAGIC_1) { Int32 r = BZ2_decompress ( s ); if (r == BZ_STREAM_END) { if (s->verbosity >= 3) VPrintf2 ( "\n combined CRCs: stored = 0x%08x, computed = 0x%08x", s->storedCombinedCRC, s->calculatedCombinedCRC ); // [ALZ] // if (s->calculatedCombinedCRC != s->storedCombinedCRC) // return BZ_DATA_ERROR; return r; } if (s->state != BZ_X_OUTPUT) return r; } } AssertH ( 0, 6001 ); return 0; /*NOTREACHED*/ } /*---------------------------------------------------*/ int BZ_API(BZ2_bzDecompressEnd) ( bz_stream *strm ) { DState* s; if (strm == NULL) return BZ_PARAM_ERROR; s = strm->state; if (s == NULL) return BZ_PARAM_ERROR; if (s->strm != strm) return BZ_PARAM_ERROR; if (s->tt != NULL) BZFREE(s->tt); if (s->ll16 != NULL) BZFREE(s->ll16); if (s->ll4 != NULL) BZFREE(s->ll4); BZFREE(strm->state); strm->state = NULL; return BZ_OK; } #ifndef BZ_NO_STDIO /*---------------------------------------------------*/ /*--- File I/O stuff ---*/ /*---------------------------------------------------*/ #define BZ_SETERR(eee) \ { \ if (bzerror != NULL) *bzerror = eee; \ if (bzf != NULL) bzf->lastErr = eee; \ } typedef struct { FILE* handle; Char buf[BZ_MAX_UNUSED]; Int32 bufN; Bool writing; bz_stream strm; Int32 lastErr; Bool initialisedOk; } bzFile; /*---------------------------------------------*/ static Bool myfeof ( FILE* f ) { Int32 c = fgetc ( f ); if (c == EOF) return True; ungetc ( c, f ); return False; } /*---------------------------------------------------*/ BZFILE* BZ_API(BZ2_bzWriteOpen) ( int* bzerror, FILE* f, int blockSize100k, int verbosity, int workFactor ) { Int32 ret; bzFile* bzf = NULL; BZ_SETERR(BZ_OK); if (f == NULL || (blockSize100k < 1 || blockSize100k > 9) || (workFactor < 0 || workFactor > 250) || (verbosity < 0 || verbosity > 4)) { BZ_SETERR(BZ_PARAM_ERROR); return NULL; }; if (ferror(f)) { BZ_SETERR(BZ_IO_ERROR); return NULL; }; bzf = malloc ( sizeof(bzFile) ); if (bzf == NULL) { BZ_SETERR(BZ_MEM_ERROR); return NULL; }; BZ_SETERR(BZ_OK); bzf->initialisedOk = False; bzf->bufN = 0; bzf->handle = f; bzf->writing = True; bzf->strm.bzalloc = NULL; bzf->strm.bzfree = NULL; bzf->strm.opaque = NULL; if (workFactor == 0) workFactor = 30; ret = BZ2_bzCompressInit ( &(bzf->strm), blockSize100k, verbosity, workFactor ); if (ret != BZ_OK) { BZ_SETERR(ret); free(bzf); return NULL; }; bzf->strm.avail_in = 0; bzf->initialisedOk = True; return bzf; } /*---------------------------------------------------*/ void BZ_API(BZ2_bzWrite) ( int* bzerror, BZFILE* b, void* buf, int len ) { Int32 n, n2, ret; bzFile* bzf = (bzFile*)b; BZ_SETERR(BZ_OK); if (bzf == NULL || buf == NULL || len < 0) { BZ_SETERR(BZ_PARAM_ERROR); return; }; if (!(bzf->writing)) { BZ_SETERR(BZ_SEQUENCE_ERROR); return; }; if (ferror(bzf->handle)) { BZ_SETERR(BZ_IO_ERROR); return; }; if (len == 0) { BZ_SETERR(BZ_OK); return; }; bzf->strm.avail_in = len; bzf->strm.next_in = buf; while (True) { bzf->strm.avail_out = BZ_MAX_UNUSED; bzf->strm.next_out = bzf->buf; ret = BZ2_bzCompress ( &(bzf->strm), BZ_RUN ); if (ret != BZ_RUN_OK) { BZ_SETERR(ret); return; }; if (bzf->strm.avail_out < BZ_MAX_UNUSED) { n = BZ_MAX_UNUSED - bzf->strm.avail_out; n2 = fwrite ( (void*)(bzf->buf), sizeof(UChar), n, bzf->handle ); if (n != n2 || ferror(bzf->handle)) { BZ_SETERR(BZ_IO_ERROR); return; }; } if (bzf->strm.avail_in == 0) { BZ_SETERR(BZ_OK); return; }; } } /*---------------------------------------------------*/ void BZ_API(BZ2_bzWriteClose) ( int* bzerror, BZFILE* b, int abandon, unsigned int* nbytes_in, unsigned int* nbytes_out ) { BZ2_bzWriteClose64 ( bzerror, b, abandon, nbytes_in, NULL, nbytes_out, NULL ); } void BZ_API(BZ2_bzWriteClose64) ( int* bzerror, BZFILE* b, int abandon, unsigned int* nbytes_in_lo32, unsigned int* nbytes_in_hi32, unsigned int* nbytes_out_lo32, unsigned int* nbytes_out_hi32 ) { Int32 n, n2, ret; bzFile* bzf = (bzFile*)b; if (bzf == NULL) { BZ_SETERR(BZ_OK); return; }; if (!(bzf->writing)) { BZ_SETERR(BZ_SEQUENCE_ERROR); return; }; if (ferror(bzf->handle)) { BZ_SETERR(BZ_IO_ERROR); return; }; if (nbytes_in_lo32 != NULL) *nbytes_in_lo32 = 0; if (nbytes_in_hi32 != NULL) *nbytes_in_hi32 = 0; if (nbytes_out_lo32 != NULL) *nbytes_out_lo32 = 0; if (nbytes_out_hi32 != NULL) *nbytes_out_hi32 = 0; if ((!abandon) && bzf->lastErr == BZ_OK) { while (True) { bzf->strm.avail_out = BZ_MAX_UNUSED; bzf->strm.next_out = bzf->buf; ret = BZ2_bzCompress ( &(bzf->strm), BZ_FINISH ); if (ret != BZ_FINISH_OK && ret != BZ_STREAM_END) { BZ_SETERR(ret); return; }; if (bzf->strm.avail_out < BZ_MAX_UNUSED) { n = BZ_MAX_UNUSED - bzf->strm.avail_out; n2 = fwrite ( (void*)(bzf->buf), sizeof(UChar), n, bzf->handle ); if (n != n2 || ferror(bzf->handle)) { BZ_SETERR(BZ_IO_ERROR); return; }; } if (ret == BZ_STREAM_END) break; } } if ( !abandon && !ferror ( bzf->handle ) ) { fflush ( bzf->handle ); if (ferror(bzf->handle)) { BZ_SETERR(BZ_IO_ERROR); return; }; } if (nbytes_in_lo32 != NULL) *nbytes_in_lo32 = bzf->strm.total_in_lo32; if (nbytes_in_hi32 != NULL) *nbytes_in_hi32 = bzf->strm.total_in_hi32; if (nbytes_out_lo32 != NULL) *nbytes_out_lo32 = bzf->strm.total_out_lo32; if (nbytes_out_hi32 != NULL) *nbytes_out_hi32 = bzf->strm.total_out_hi32; BZ_SETERR(BZ_OK); BZ2_bzCompressEnd ( &(bzf->strm) ); free ( bzf ); } /*---------------------------------------------------*/ BZFILE* BZ_API(BZ2_bzReadOpen) ( int* bzerror, FILE* f, int verbosity, int small, void* unused, int nUnused ) { bzFile* bzf = NULL; int ret; BZ_SETERR(BZ_OK); if (f == NULL || (small != 0 && small != 1) || (verbosity < 0 || verbosity > 4) || (unused == NULL && nUnused != 0) || (unused != NULL && (nUnused < 0 || nUnused > BZ_MAX_UNUSED))) { BZ_SETERR(BZ_PARAM_ERROR); return NULL; }; if (ferror(f)) { BZ_SETERR(BZ_IO_ERROR); return NULL; }; bzf = malloc ( sizeof(bzFile) ); if (bzf == NULL) { BZ_SETERR(BZ_MEM_ERROR); return NULL; }; BZ_SETERR(BZ_OK); bzf->initialisedOk = False; bzf->handle = f; bzf->bufN = 0; bzf->writing = False; bzf->strm.bzalloc = NULL; bzf->strm.bzfree = NULL; bzf->strm.opaque = NULL; while (nUnused > 0) { bzf->buf[bzf->bufN] = *((UChar*)(unused)); bzf->bufN++; unused = ((void*)( 1 + ((UChar*)(unused)) )); nUnused--; } ret = BZ2_bzDecompressInit ( &(bzf->strm), verbosity, small ); if (ret != BZ_OK) { BZ_SETERR(ret); free(bzf); return NULL; }; bzf->strm.avail_in = bzf->bufN; bzf->strm.next_in = bzf->buf; bzf->initialisedOk = True; return bzf; } /*---------------------------------------------------*/ void BZ_API(BZ2_bzReadClose) ( int *bzerror, BZFILE *b ) { bzFile* bzf = (bzFile*)b; BZ_SETERR(BZ_OK); if (bzf == NULL) { BZ_SETERR(BZ_OK); return; }; if (bzf->writing) { BZ_SETERR(BZ_SEQUENCE_ERROR); return; }; if (bzf->initialisedOk) (void)BZ2_bzDecompressEnd ( &(bzf->strm) ); free ( bzf ); } /*---------------------------------------------------*/ int BZ_API(BZ2_bzRead) ( int* bzerror, BZFILE* b, void* buf, int len ) { Int32 n, ret; bzFile* bzf = (bzFile*)b; BZ_SETERR(BZ_OK); if (bzf == NULL || buf == NULL || len < 0) { BZ_SETERR(BZ_PARAM_ERROR); return 0; }; if (bzf->writing) { BZ_SETERR(BZ_SEQUENCE_ERROR); return 0; }; if (len == 0) { BZ_SETERR(BZ_OK); return 0; }; bzf->strm.avail_out = len; bzf->strm.next_out = buf; while (True) { if (ferror(bzf->handle)) { BZ_SETERR(BZ_IO_ERROR); return 0; }; if (bzf->strm.avail_in == 0 && !myfeof(bzf->handle)) { n = fread ( bzf->buf, sizeof(UChar), BZ_MAX_UNUSED, bzf->handle ); if (ferror(bzf->handle)) { BZ_SETERR(BZ_IO_ERROR); return 0; }; bzf->bufN = n; bzf->strm.avail_in = bzf->bufN; bzf->strm.next_in = bzf->buf; } ret = BZ2_bzDecompress ( &(bzf->strm) ); if (ret != BZ_OK && ret != BZ_STREAM_END) { BZ_SETERR(ret); return 0; }; if (ret == BZ_OK && myfeof(bzf->handle) && bzf->strm.avail_in == 0 && bzf->strm.avail_out > 0) { BZ_SETERR(BZ_UNEXPECTED_EOF); return 0; }; if (ret == BZ_STREAM_END) { BZ_SETERR(BZ_STREAM_END); return len - bzf->strm.avail_out; }; if (bzf->strm.avail_out == 0) { BZ_SETERR(BZ_OK); return len; }; } return 0; /*not reached*/ } /*---------------------------------------------------*/ void BZ_API(BZ2_bzReadGetUnused) ( int* bzerror, BZFILE* b, void** unused, int* nUnused ) { bzFile* bzf = (bzFile*)b; if (bzf == NULL) { BZ_SETERR(BZ_PARAM_ERROR); return; }; if (bzf->lastErr != BZ_STREAM_END) { BZ_SETERR(BZ_SEQUENCE_ERROR); return; }; if (unused == NULL || nUnused == NULL) { BZ_SETERR(BZ_PARAM_ERROR); return; }; BZ_SETERR(BZ_OK); *nUnused = bzf->strm.avail_in; *unused = bzf->strm.next_in; } #endif /*---------------------------------------------------*/ /*--- Misc convenience stuff ---*/ /*---------------------------------------------------*/ /*---------------------------------------------------*/ int BZ_API(BZ2_bzBuffToBuffCompress) ( char* dest, unsigned int* destLen, char* source, unsigned int sourceLen, int blockSize100k, int verbosity, int workFactor ) { bz_stream strm; int ret; if (dest == NULL || destLen == NULL || source == NULL || blockSize100k < 1 || blockSize100k > 9 || verbosity < 0 || verbosity > 4 || workFactor < 0 || workFactor > 250) return BZ_PARAM_ERROR; if (workFactor == 0) workFactor = 30; strm.bzalloc = NULL; strm.bzfree = NULL; strm.opaque = NULL; ret = BZ2_bzCompressInit ( &strm, blockSize100k, verbosity, workFactor ); if (ret != BZ_OK) return ret; strm.next_in = source; strm.next_out = dest; strm.avail_in = sourceLen; strm.avail_out = *destLen; ret = BZ2_bzCompress ( &strm, BZ_FINISH ); if (ret == BZ_FINISH_OK) goto output_overflow; if (ret != BZ_STREAM_END) goto errhandler; /* normal termination */ *destLen -= strm.avail_out; BZ2_bzCompressEnd ( &strm ); return BZ_OK; output_overflow: BZ2_bzCompressEnd ( &strm ); return BZ_OUTBUFF_FULL; errhandler: BZ2_bzCompressEnd ( &strm ); return ret; } /*---------------------------------------------------*/ int BZ_API(BZ2_bzBuffToBuffDecompress) ( char* dest, unsigned int* destLen, char* source, unsigned int sourceLen, int small, int verbosity ) { bz_stream strm; int ret; if (dest == NULL || destLen == NULL || source == NULL || (small != 0 && small != 1) || verbosity < 0 || verbosity > 4) return BZ_PARAM_ERROR; strm.bzalloc = NULL; strm.bzfree = NULL; strm.opaque = NULL; ret = BZ2_bzDecompressInit ( &strm, verbosity, small ); if (ret != BZ_OK) return ret; strm.next_in = source; strm.next_out = dest; strm.avail_in = sourceLen; strm.avail_out = *destLen; ret = BZ2_bzDecompress ( &strm ); if (ret == BZ_OK) goto output_overflow_or_eof; if (ret != BZ_STREAM_END) goto errhandler; /* normal termination */ *destLen -= strm.avail_out; BZ2_bzDecompressEnd ( &strm ); return BZ_OK; output_overflow_or_eof: if (strm.avail_out > 0) { BZ2_bzDecompressEnd ( &strm ); return BZ_UNEXPECTED_EOF; } else { BZ2_bzDecompressEnd ( &strm ); return BZ_OUTBUFF_FULL; }; errhandler: BZ2_bzDecompressEnd ( &strm ); return ret; } /*---------------------------------------------------*/ /*-- Code contributed by Yoshioka Tsuneo (tsuneo@rr.iij4u.or.jp) to support better zlib compatibility. This code is not _officially_ part of libbzip2 (yet); I haven't tested it, documented it, or considered the threading-safeness of it. If this code breaks, please contact both Yoshioka and me. --*/ /*---------------------------------------------------*/ /*---------------------------------------------------*/ /*-- return version like "0.9.5d, 4-Sept-1999". --*/ const char * BZ_API(BZ2_bzlibVersion)(void) { return BZ_VERSION; } #ifndef BZ_NO_STDIO /*---------------------------------------------------*/ #if defined(_WIN32) || defined(OS2) || defined(MSDOS) # include # include # define SET_BINARY_MODE(file) setmode(fileno(file),O_BINARY) #else # define SET_BINARY_MODE(file) #endif static BZFILE * bzopen_or_bzdopen ( const char *path, /* no use when bzdopen */ int fd, /* no use when bzdopen */ const char *mode, int open_mode) /* bzopen: 0, bzdopen:1 */ { int bzerr; char unused[BZ_MAX_UNUSED]; int blockSize100k = 9; int writing = 0; char mode2[10] = ""; FILE *fp = NULL; BZFILE *bzfp = NULL; int verbosity = 0; int workFactor = 30; int smallMode = 0; int nUnused = 0; if (mode == NULL) return NULL; while (*mode) { switch (*mode) { case 'r': writing = 0; break; case 'w': writing = 1; break; case 's': smallMode = 1; break; default: if (isdigit((int)(*mode))) { blockSize100k = *mode-BZ_HDR_0; } } mode++; } #ifndef __OpenBSD__ strcat(mode2, writing ? "w" : "r" ); strcat(mode2,"b"); /* binary mode */ #else // by liam.joo@gmail 2006/12 strlcat(mode2, writing ? "w" : "r", sizeof(mode2) ); strlcat(mode2,"b",sizeof(mode2)); #endif if (open_mode==0) { if (path==NULL || strcmp(path,"")==0) { fp = (writing ? stdout : stdin); SET_BINARY_MODE(fp); } else { fp = fopen(path,mode2); } } else { #ifdef BZ_STRICT_ANSI fp = NULL; #else fp = fdopen(fd,mode2); #endif } if (fp == NULL) return NULL; if (writing) { /* Guard against total chaos and anarchy -- JRS */ if (blockSize100k < 1) blockSize100k = 1; if (blockSize100k > 9) blockSize100k = 9; bzfp = BZ2_bzWriteOpen(&bzerr,fp,blockSize100k, verbosity,workFactor); } else { bzfp = BZ2_bzReadOpen(&bzerr,fp,verbosity,smallMode, unused,nUnused); } if (bzfp == NULL) { if (fp != stdin && fp != stdout) fclose(fp); return NULL; } return bzfp; } /*---------------------------------------------------*/ /*-- open file for read or write. ex) bzopen("file","w9") case path="" or NULL => use stdin or stdout. --*/ BZFILE * BZ_API(BZ2_bzopen) ( const char *path, const char *mode ) { return bzopen_or_bzdopen(path,-1,mode,/*bzopen*/0); } /*---------------------------------------------------*/ BZFILE * BZ_API(BZ2_bzdopen) ( int fd, const char *mode ) { return bzopen_or_bzdopen(NULL,fd,mode,/*bzdopen*/1); } /*---------------------------------------------------*/ int BZ_API(BZ2_bzread) (BZFILE* b, void* buf, int len ) { int bzerr, nread; if (((bzFile*)b)->lastErr == BZ_STREAM_END) return 0; nread = BZ2_bzRead(&bzerr,b,buf,len); if (bzerr == BZ_OK || bzerr == BZ_STREAM_END) { return nread; } else { return -1; } } /*---------------------------------------------------*/ int BZ_API(BZ2_bzwrite) (BZFILE* b, void* buf, int len ) { int bzerr; BZ2_bzWrite(&bzerr,b,buf,len); if(bzerr == BZ_OK){ return len; }else{ return -1; } } /*---------------------------------------------------*/ int BZ_API(BZ2_bzflush) (BZFILE *b) { /* do nothing now... */ return 0; } /*---------------------------------------------------*/ void BZ_API(BZ2_bzclose) (BZFILE* b) { int bzerr; FILE *fp; if (b==NULL) {return;} fp = ((bzFile *)b)->handle; if(((bzFile*)b)->writing){ BZ2_bzWriteClose(&bzerr,b,0,NULL,NULL); if(bzerr != BZ_OK){ BZ2_bzWriteClose(NULL,b,1,NULL,NULL); } }else{ BZ2_bzReadClose(&bzerr,b); } if(fp!=stdin && fp!=stdout){ fclose(fp); } } /*---------------------------------------------------*/ /*-- return last error code --*/ static const char *bzerrorstrings[] = { "OK" ,"SEQUENCE_ERROR" ,"PARAM_ERROR" ,"MEM_ERROR" ,"DATA_ERROR" ,"DATA_ERROR_MAGIC" ,"IO_ERROR" ,"UNEXPECTED_EOF" ,"OUTBUFF_FULL" ,"CONFIG_ERROR" ,"???" /* for future */ ,"???" /* for future */ ,"???" /* for future */ ,"???" /* for future */ ,"???" /* for future */ ,"???" /* for future */ }; const char * BZ_API(BZ2_bzerror) (BZFILE *b, int *errnum) { int err = ((bzFile *)b)->lastErr; if(err>0) err = 0; *errnum = err; return bzerrorstrings[err*-1]; } #endif /*-------------------------------------------------------------*/ /*--- end bzlib.c ---*/ /*-------------------------------------------------------------*/ unalz/UnAlzUtils.cpp00007000001040€ÿÿÿÿ0000000645511164577276017273 0ustar Administrators????????#include #include #include "UnAlzUtils.h" #ifdef _WIN32 # define I64FORM(x) "%"#x"I64d" # define U64FORM(x) "%"#x"I64u" #else # define I64FORM(x) "%"#x"lld" # define U64FORM(x) "%"#x"llu" #endif #ifdef _WIN32 # pragma warning( disable : 4996 ) // crt secure warning #endif #define LEN_ATTR 6 time_t dosTime2TimeT(UINT32 dostime) // from INFO-ZIP src { struct tm t; t.tm_isdst = -1; t.tm_sec = (((int)dostime) << 1) & 0x3e; t.tm_min = (((int)dostime) >> 5) & 0x3f; t.tm_hour = (((int)dostime) >> 11) & 0x1f; t.tm_mday = (int)(dostime >> 16) & 0x1f; t.tm_mon = ((int)(dostime >> 21) & 0x0f) - 1; t.tm_year = ((int)(dostime >> 25) & 0x7f) + 80; return mktime(&t); } //////////////////////////////////////////////////////////////////////////////////////////////////// /// fileAttribute ¸¦ ½ºÆ®¸µÀ¸·Î ¹Ù²ãÁØ´Ù. /// @param buf - 5byte ÀÌ»ó /// @param fileAttribute - ALZ_FILE_ATTRIBUTE ÂüÁ¶ /// @return /// @date 2005-06-23 ¿ÀÈÄ 10:12:35 //////////////////////////////////////////////////////////////////////////////////////////////////// void FileAttr2Str(char szAttr[LEN_ATTR], BYTE fileAttribute) { szAttr[0] = 0; if(fileAttribute&ALZ_FILEATTR_FILE) CUnAlz::safe_strcat(szAttr, "A", LEN_ATTR); else CUnAlz::safe_strcat(szAttr, "_", LEN_ATTR); if(fileAttribute&ALZ_FILEATTR_DIRECTORY) CUnAlz::safe_strcat(szAttr, "D", LEN_ATTR); else CUnAlz::safe_strcat(szAttr, "_", LEN_ATTR); if(fileAttribute&ALZ_FILEATTR_READONLY) CUnAlz::safe_strcat(szAttr, "R", LEN_ATTR); else CUnAlz::safe_strcat(szAttr, "_", LEN_ATTR); if(fileAttribute&ALZ_FILEATTR_HIDDEN) CUnAlz::safe_strcat(szAttr, "H", LEN_ATTR); else CUnAlz::safe_strcat(szAttr, "_", LEN_ATTR); } // alz ÆÄÀÏÀ» ¸®½ºÆà ÇÑ´Ù ( -l ¿É¼Ç ) int ListAlz(CUnAlz* pUnAlz, const char* src) { CUnAlz::FileList::iterator i; CUnAlz::FileList* list; list = pUnAlz->GetFileList(); printf("\nListing archive: %s\n" "\n" "Attr Uncomp Size Comp Size Date & Time & File Name\n", src); printf("---- ------------ ------------ ------------------------------------------------\n"); // char szDate[64]; char szTime[64]; char szAttr[LEN_ATTR]; UINT64 totalUnCompressedSize = 0; UINT64 totalCompressedSize = 0; unsigned fileNum = 0; time_t time; struct tm* filetm; for(i=list->begin(); iend(); i++) { // time time = dosTime2TimeT(i->head.fileTimeDate); filetm = localtime(&time); // strftime(szTime, 64, "%H:%M:%S", filetm); // strftime(szDate, 64, "%Y-%m-%d", filetm); strftime(szTime, 64, "%x %X", filetm); // use system locale // attributes FileAttr2Str(szAttr, i->head.fileAttribute); printf("%s " I64FORM(12) " " I64FORM(12) " %s %s%s\n", szAttr, i->uncompressedSize, i->compressedSize, szTime, i->fileName, i->head.fileDescriptor & ALZ_FILE_DESCRIPTOR_ENCRYPTED ? "*" : "" ); ++fileNum; totalUnCompressedSize += i->uncompressedSize; totalCompressedSize += i->compressedSize; } printf("---- ------------ ------------ ------------------------------------------------\n"); printf(" " U64FORM(12) " " U64FORM(12) " Total %u file%s\n", totalUnCompressedSize, totalCompressedSize, fileNum, fileNum<=1 ? "" : "s"); return 0; } unalz/UnAlzUtils.h00007000001040€ÿÿÿÿ0000000460211135217166016713 0ustar Administrators????????/* UNALZ : read and extract module for ALZ format. LICENSE (zlib License) Copyright (C) 2004-2009 kippler@gmail.com , http://www.kipple.pe.kr This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. ÀÌ ¼ÒÇÁÆ®¿þ¾î´Â ¾î¶°ÇÑ ¸í½ÃÀû ¶Ç´Â ¹¬½ÃÀû º¸Áõµµ ¾øÀÌ "ÀÖ´Â ±×´ë·Î" Á¦°øµË´Ï´Ù. ±× ¾î¶² °æ¿ì¿¡µµ ÀÛ¼ºÀÚ´Â ÀÌ ¼ÒÇÁÆ®¿þ¾îÀÇ »ç¿ëÀ¸·Î ÀÎÇÑ ¼ÕÇØ¿¡ ´ëÇØ Ã¥ÀÓÀ» ÁöÁö ¾Ê½À´Ï´Ù. ´ÙÀ½ Á¦ÇÑ ±ÔÁ¤À» ÁؼöÇÏ´Â °æ¿ì¿¡ ÇÑÇÏ¿© »ó¾÷ÀûÀÎ ÀÀ¿ë ÇÁ·Î±×·¥À» Æ÷ÇÔÇÏ´Â ¸ðµç ¿ëµµ·Î ÀÌ ¼ÒÇÁÆ®¿þ¾î¸¦ »ç¿ëÇÏ°í ÀÚÀ¯·Ó°Ô ¼öÁ¤ ¹× Àç¹èÆ÷ÇÒ ¼ö ÀÖ´Â ±ÇÇÑÀÌ ´©±¸¿¡°Ô³ª ºÎ¿©µË´Ï´Ù. 1. ÀÌ ¼ÒÇÁÆ®¿þ¾îÀÇ Ãâó¸¦ À߸ø Ç¥½ÃÇϰųª ¿ø·¡ ¼ÒÇÁÆ®¿þ¾î¸¦ ÀÚ½ÅÀÌ ÀÛ¼ºÇß´Ù°í ÁÖÀåÇؼ­´Â ¾È µË´Ï´Ù. Á¦Ç°¿¡ ÀÌ ¼ÒÇÁÆ®¿þ¾î¸¦ »ç¿ëÇÏ´Â °æ¿ì ¿ä±¸ »çÇ×Àº ¾Æ´ÏÁö¸¸ Á¦Ç° ¼³¸í¼­¿¡ ÀÎÁ¤ Á¶Ç×À» ³Ö¾î ÁÖ½Ã¸é °¨»çÇÏ°Ú½À´Ï´Ù. 2. ¼öÁ¤µÈ ¼Ò½º ¹öÀüÀº ¹Ýµå½Ã ¸íÈ®ÇÏ°Ô Ç¥½ÃµÇ¾î¾ß ÇÏ¸ç ¿ø·¡ ¼ÒÇÁÆ®¿þ¾î·Î ¿ÀÀεǵµ·Ï À߸ø Ç¥½ÃÇؼ­´Â ¾È µË´Ï´Ù. 3. ¸ðµç ¼Ò½º ¹èÆ÷ ½Ã ÀÌ °øÁö¸¦ »èÁ¦Çϰųª ¼öÁ¤ÇÒ ¼ö ¾ø½À´Ï´Ù. ============================================================================================================= */ //////////////////////////////////////////////////////////////////////////////////////////////////// /// /// unalz °ü·Ã À¯Æ¿ ¸ðÀ½ /// /// @author kippler@gmail.com /// @date 2005-06-23 ¿ÀÈÄ 9:55:34 /// //////////////////////////////////////////////////////////////////////////////////////////////////// #ifndef _UNALZ_UTILS_H_ #define _UNALZ_UTILS_H_ #include "UnAlz.h" time_t dosTime2TimeT(UINT32 dostime); int ListAlz(CUnAlz* pUnAlz, const char* src); #endif // _UNALZ_UTILS_H_ unalz/zlib/00007000001040€ÿÿÿÿ0000000000011164625223015422 5ustar Administrators????????unalz/zlib/adler32.c00007000001040€ÿÿÿÿ0000001114410404306311017014 0ustar Administrators????????/* adler32.c -- compute the Adler-32 checksum of a data stream * Copyright (C) 1995-2004 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ /* @(#) $Id$ */ #define ZLIB_INTERNAL #include "zlib.h" #define BASE 65521UL /* largest prime smaller than 65536 */ #define NMAX 5552 /* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ #define DO1(buf,i) {adler += (buf)[i]; sum2 += adler;} #define DO2(buf,i) DO1(buf,i); DO1(buf,i+1); #define DO4(buf,i) DO2(buf,i); DO2(buf,i+2); #define DO8(buf,i) DO4(buf,i); DO4(buf,i+4); #define DO16(buf) DO8(buf,0); DO8(buf,8); /* use NO_DIVIDE if your processor does not do division in hardware */ #ifdef NO_DIVIDE # define MOD(a) \ do { \ if (a >= (BASE << 16)) a -= (BASE << 16); \ if (a >= (BASE << 15)) a -= (BASE << 15); \ if (a >= (BASE << 14)) a -= (BASE << 14); \ if (a >= (BASE << 13)) a -= (BASE << 13); \ if (a >= (BASE << 12)) a -= (BASE << 12); \ if (a >= (BASE << 11)) a -= (BASE << 11); \ if (a >= (BASE << 10)) a -= (BASE << 10); \ if (a >= (BASE << 9)) a -= (BASE << 9); \ if (a >= (BASE << 8)) a -= (BASE << 8); \ if (a >= (BASE << 7)) a -= (BASE << 7); \ if (a >= (BASE << 6)) a -= (BASE << 6); \ if (a >= (BASE << 5)) a -= (BASE << 5); \ if (a >= (BASE << 4)) a -= (BASE << 4); \ if (a >= (BASE << 3)) a -= (BASE << 3); \ if (a >= (BASE << 2)) a -= (BASE << 2); \ if (a >= (BASE << 1)) a -= (BASE << 1); \ if (a >= BASE) a -= BASE; \ } while (0) # define MOD4(a) \ do { \ if (a >= (BASE << 4)) a -= (BASE << 4); \ if (a >= (BASE << 3)) a -= (BASE << 3); \ if (a >= (BASE << 2)) a -= (BASE << 2); \ if (a >= (BASE << 1)) a -= (BASE << 1); \ if (a >= BASE) a -= BASE; \ } while (0) #else # define MOD(a) a %= BASE # define MOD4(a) a %= BASE #endif /* ========================================================================= */ uLong ZEXPORT adler32(adler, buf, len) uLong adler; const Bytef *buf; uInt len; { unsigned long sum2; unsigned n; /* split Adler-32 into component sums */ sum2 = (adler >> 16) & 0xffff; adler &= 0xffff; /* in case user likes doing a byte at a time, keep it fast */ if (len == 1) { adler += buf[0]; if (adler >= BASE) adler -= BASE; sum2 += adler; if (sum2 >= BASE) sum2 -= BASE; return adler | (sum2 << 16); } /* initial Adler-32 value (deferred check for len == 1 speed) */ if (buf == Z_NULL) return 1L; /* in case short lengths are provided, keep it somewhat fast */ if (len < 16) { while (len--) { adler += *buf++; sum2 += adler; } if (adler >= BASE) adler -= BASE; MOD4(sum2); /* only added so many BASE's */ return adler | (sum2 << 16); } /* do length NMAX blocks -- requires just one modulo operation */ while (len >= NMAX) { len -= NMAX; n = NMAX / 16; /* NMAX is divisible by 16 */ do { DO16(buf); /* 16 sums unrolled */ buf += 16; } while (--n); MOD(adler); MOD(sum2); } /* do remaining bytes (less than NMAX, still just one modulo) */ if (len) { /* avoid modulos if none remaining */ while (len >= 16) { len -= 16; DO16(buf); buf += 16; } while (len--) { adler += *buf++; sum2 += adler; } MOD(adler); MOD(sum2); } /* return recombined sums */ return adler | (sum2 << 16); } /* ========================================================================= */ uLong ZEXPORT adler32_combine(adler1, adler2, len2) uLong adler1; uLong adler2; z_off_t len2; { unsigned long sum1; unsigned long sum2; unsigned rem; /* the derivation of this formula is left as an exercise for the reader */ rem = (unsigned)(len2 % BASE); sum1 = adler1 & 0xffff; sum2 = rem * sum1; MOD(sum2); sum1 += (adler2 & 0xffff) + BASE - 1; sum2 += ((adler1 >> 16) & 0xffff) + ((adler2 >> 16) & 0xffff) + BASE - rem; if (sum1 > BASE) sum1 -= BASE; if (sum1 > BASE) sum1 -= BASE; if (sum2 > (BASE << 1)) sum2 -= (BASE << 1); if (sum2 > BASE) sum2 -= BASE; return sum1 | (sum2 << 16); } unalz/zlib/crc32.c00007000001040€ÿÿÿÿ0000003246010404306311016500 0ustar Administrators????????/* crc32.c -- compute the CRC-32 of a data stream * Copyright (C) 1995-2005 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h * * Thanks to Rodney Brown for his contribution of faster * CRC methods: exclusive-oring 32 bits of data at a time, and pre-computing * tables for updating the shift register in one step with three exclusive-ors * instead of four steps with four exclusive-ors. This results in about a * factor of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3. */ /* @(#) $Id$ */ /* Note on the use of DYNAMIC_CRC_TABLE: there is no mutex or semaphore protection on the static variables used to control the first-use generation of the crc tables. Therefore, if you #define DYNAMIC_CRC_TABLE, you should first call get_crc_table() to initialize the tables before allowing more than one thread to use crc32(). */ #ifdef MAKECRCH # include # ifndef DYNAMIC_CRC_TABLE # define DYNAMIC_CRC_TABLE # endif /* !DYNAMIC_CRC_TABLE */ #endif /* MAKECRCH */ #include "zutil.h" /* for STDC and FAR definitions */ #define local static /* Find a four-byte integer type for crc32_little() and crc32_big(). */ #ifndef NOBYFOUR # ifdef STDC /* need ANSI C limits.h to determine sizes */ # include # define BYFOUR # if (UINT_MAX == 0xffffffffUL) typedef unsigned int u4; # else # if (ULONG_MAX == 0xffffffffUL) typedef unsigned long u4; # else # if (USHRT_MAX == 0xffffffffUL) typedef unsigned short u4; # else # undef BYFOUR /* can't find a four-byte integer type! */ # endif # endif # endif # endif /* STDC */ #endif /* !NOBYFOUR */ /* Definitions for doing the crc four data bytes at a time. */ #ifdef BYFOUR # define REV(w) (((w)>>24)+(((w)>>8)&0xff00)+ \ (((w)&0xff00)<<8)+(((w)&0xff)<<24)) local unsigned long crc32_little OF((unsigned long, const unsigned char FAR *, unsigned)); local unsigned long crc32_big OF((unsigned long, const unsigned char FAR *, unsigned)); # define TBLS 8 #else # define TBLS 1 #endif /* BYFOUR */ /* Local functions for crc concatenation */ local unsigned long gf2_matrix_times OF((unsigned long *mat, unsigned long vec)); local void gf2_matrix_square OF((unsigned long *square, unsigned long *mat)); #ifdef DYNAMIC_CRC_TABLE local volatile int crc_table_empty = 1; local unsigned long FAR crc_table[TBLS][256]; local void make_crc_table OF((void)); #ifdef MAKECRCH local void write_table OF((FILE *, const unsigned long FAR *)); #endif /* MAKECRCH */ /* Generate tables for a byte-wise 32-bit CRC calculation on the polynomial: x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1. Polynomials over GF(2) are represented in binary, one bit per coefficient, with the lowest powers in the most significant bit. Then adding polynomials is just exclusive-or, and multiplying a polynomial by x is a right shift by one. If we call the above polynomial p, and represent a byte as the polynomial q, also with the lowest power in the most significant bit (so the byte 0xb1 is the polynomial x^7+x^3+x+1), then the CRC is (q*x^32) mod p, where a mod b means the remainder after dividing a by b. This calculation is done using the shift-register method of multiplying and taking the remainder. The register is initialized to zero, and for each incoming bit, x^32 is added mod p to the register if the bit is a one (where x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by x (which is shifting right by one and adding x^32 mod p if the bit shifted out is a one). We start with the highest power (least significant bit) of q and repeat for all eight bits of q. The first table is simply the CRC of all possible eight bit values. This is all the information needed to generate CRCs on data a byte at a time for all combinations of CRC register values and incoming bytes. The remaining tables allow for word-at-a-time CRC calculation for both big-endian and little- endian machines, where a word is four bytes. */ local void make_crc_table() { unsigned long c; int n, k; unsigned long poly; /* polynomial exclusive-or pattern */ /* terms of polynomial defining this crc (except x^32): */ static volatile int first = 1; /* flag to limit concurrent making */ static const unsigned char p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26}; /* See if another task is already doing this (not thread-safe, but better than nothing -- significantly reduces duration of vulnerability in case the advice about DYNAMIC_CRC_TABLE is ignored) */ if (first) { first = 0; /* make exclusive-or pattern from polynomial (0xedb88320UL) */ poly = 0UL; for (n = 0; n < sizeof(p)/sizeof(unsigned char); n++) poly |= 1UL << (31 - p[n]); /* generate a crc for every 8-bit value */ for (n = 0; n < 256; n++) { c = (unsigned long)n; for (k = 0; k < 8; k++) c = c & 1 ? poly ^ (c >> 1) : c >> 1; crc_table[0][n] = c; } #ifdef BYFOUR /* generate crc for each value followed by one, two, and three zeros, and then the byte reversal of those as well as the first table */ for (n = 0; n < 256; n++) { c = crc_table[0][n]; crc_table[4][n] = REV(c); for (k = 1; k < 4; k++) { c = crc_table[0][c & 0xff] ^ (c >> 8); crc_table[k][n] = c; crc_table[k + 4][n] = REV(c); } } #endif /* BYFOUR */ crc_table_empty = 0; } else { /* not first */ /* wait for the other guy to finish (not efficient, but rare) */ while (crc_table_empty) ; } #ifdef MAKECRCH /* write out CRC tables to crc32.h */ { FILE *out; out = fopen("crc32.h", "w"); if (out == NULL) return; fprintf(out, "/* crc32.h -- tables for rapid CRC calculation\n"); fprintf(out, " * Generated automatically by crc32.c\n */\n\n"); fprintf(out, "local const unsigned long FAR "); fprintf(out, "crc_table[TBLS][256] =\n{\n {\n"); write_table(out, crc_table[0]); # ifdef BYFOUR fprintf(out, "#ifdef BYFOUR\n"); for (k = 1; k < 8; k++) { fprintf(out, " },\n {\n"); write_table(out, crc_table[k]); } fprintf(out, "#endif\n"); # endif /* BYFOUR */ fprintf(out, " }\n};\n"); fclose(out); } #endif /* MAKECRCH */ } #ifdef MAKECRCH local void write_table(out, table) FILE *out; const unsigned long FAR *table; { int n; for (n = 0; n < 256; n++) fprintf(out, "%s0x%08lxUL%s", n % 5 ? "" : " ", table[n], n == 255 ? "\n" : (n % 5 == 4 ? ",\n" : ", ")); } #endif /* MAKECRCH */ #else /* !DYNAMIC_CRC_TABLE */ /* ======================================================================== * Tables of CRC-32s of all single-byte values, made by make_crc_table(). */ #include "crc32.h" #endif /* DYNAMIC_CRC_TABLE */ /* ========================================================================= * This function can be used by asm versions of crc32() */ const unsigned long FAR * ZEXPORT get_crc_table() { #ifdef DYNAMIC_CRC_TABLE if (crc_table_empty) make_crc_table(); #endif /* DYNAMIC_CRC_TABLE */ return (const unsigned long FAR *)crc_table; } /* ========================================================================= */ #define DO1 crc = crc_table[0][((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8) #define DO8 DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1 /* ========================================================================= */ unsigned long ZEXPORT crc32(crc, buf, len) unsigned long crc; const unsigned char FAR *buf; unsigned len; { if (buf == Z_NULL) return 0UL; #ifdef DYNAMIC_CRC_TABLE if (crc_table_empty) make_crc_table(); #endif /* DYNAMIC_CRC_TABLE */ #ifdef BYFOUR if (sizeof(void *) == sizeof(ptrdiff_t)) { u4 endian; endian = 1; if (*((unsigned char *)(&endian))) return crc32_little(crc, buf, len); else return crc32_big(crc, buf, len); } #endif /* BYFOUR */ crc = crc ^ 0xffffffffUL; while (len >= 8) { DO8; len -= 8; } if (len) do { DO1; } while (--len); return crc ^ 0xffffffffUL; } #ifdef BYFOUR /* ========================================================================= */ #define DOLIT4 c ^= *buf4++; \ c = crc_table[3][c & 0xff] ^ crc_table[2][(c >> 8) & 0xff] ^ \ crc_table[1][(c >> 16) & 0xff] ^ crc_table[0][c >> 24] #define DOLIT32 DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4 /* ========================================================================= */ local unsigned long crc32_little(crc, buf, len) unsigned long crc; const unsigned char FAR *buf; unsigned len; { register u4 c; register const u4 FAR *buf4; c = (u4)crc; c = ~c; while (len && ((ptrdiff_t)buf & 3)) { c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8); len--; } buf4 = (const u4 FAR *)(const void FAR *)buf; while (len >= 32) { DOLIT32; len -= 32; } while (len >= 4) { DOLIT4; len -= 4; } buf = (const unsigned char FAR *)buf4; if (len) do { c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8); } while (--len); c = ~c; return (unsigned long)c; } /* ========================================================================= */ #define DOBIG4 c ^= *++buf4; \ c = crc_table[4][c & 0xff] ^ crc_table[5][(c >> 8) & 0xff] ^ \ crc_table[6][(c >> 16) & 0xff] ^ crc_table[7][c >> 24] #define DOBIG32 DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4 /* ========================================================================= */ local unsigned long crc32_big(crc, buf, len) unsigned long crc; const unsigned char FAR *buf; unsigned len; { register u4 c; register const u4 FAR *buf4; c = REV((u4)crc); c = ~c; while (len && ((ptrdiff_t)buf & 3)) { c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); len--; } buf4 = (const u4 FAR *)(const void FAR *)buf; buf4--; while (len >= 32) { DOBIG32; len -= 32; } while (len >= 4) { DOBIG4; len -= 4; } buf4++; buf = (const unsigned char FAR *)buf4; if (len) do { c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); } while (--len); c = ~c; return (unsigned long)(REV(c)); } #endif /* BYFOUR */ #define GF2_DIM 32 /* dimension of GF(2) vectors (length of CRC) */ /* ========================================================================= */ local unsigned long gf2_matrix_times(mat, vec) unsigned long *mat; unsigned long vec; { unsigned long sum; sum = 0; while (vec) { if (vec & 1) sum ^= *mat; vec >>= 1; mat++; } return sum; } /* ========================================================================= */ local void gf2_matrix_square(square, mat) unsigned long *square; unsigned long *mat; { int n; for (n = 0; n < GF2_DIM; n++) square[n] = gf2_matrix_times(mat, mat[n]); } /* ========================================================================= */ uLong ZEXPORT crc32_combine(crc1, crc2, len2) uLong crc1; uLong crc2; z_off_t len2; { int n; unsigned long row; unsigned long even[GF2_DIM]; /* even-power-of-two zeros operator */ unsigned long odd[GF2_DIM]; /* odd-power-of-two zeros operator */ /* degenerate case */ if (len2 == 0) return crc1; /* put operator for one zero bit in odd */ odd[0] = 0xedb88320L; /* CRC-32 polynomial */ row = 1; for (n = 1; n < GF2_DIM; n++) { odd[n] = row; row <<= 1; } /* put operator for two zero bits in even */ gf2_matrix_square(even, odd); /* put operator for four zero bits in odd */ gf2_matrix_square(odd, even); /* apply len2 zeros to crc1 (first square will put the operator for one zero byte, eight zero bits, in even) */ do { /* apply zeros operator for this bit of len2 */ gf2_matrix_square(even, odd); if (len2 & 1) crc1 = gf2_matrix_times(even, crc1); len2 >>= 1; /* if no more bits set, then done */ if (len2 == 0) break; /* another iteration of the loop with odd and even swapped */ gf2_matrix_square(odd, even); if (len2 & 1) crc1 = gf2_matrix_times(odd, crc1); len2 >>= 1; /* if no more bits set, then done */ } while (len2 != 0); /* return combined crc */ crc1 ^= crc2; return crc1; } unalz/zlib/crc32.h00007000001040€ÿÿÿÿ0000007444110326522202016514 0ustar Administrators????????/* crc32.h -- tables for rapid CRC calculation * Generated automatically by crc32.c */ local const unsigned long FAR crc_table[TBLS][256] = { { 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL, 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL, 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL, 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL, 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL, 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL, 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL, 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL, 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL, 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL, 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL, 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL, 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL, 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL, 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL, 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL, 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL, 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL, 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL, 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL, 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL, 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL, 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL, 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL, 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL, 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL, 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL, 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL, 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL, 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL, 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL, 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL, 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL, 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL, 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL, 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL, 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL, 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL, 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL, 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL, 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL, 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL, 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL, 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL, 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL, 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL, 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL, 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL, 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL, 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL, 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL, 0x2d02ef8dUL #ifdef BYFOUR }, { 0x00000000UL, 0x191b3141UL, 0x32366282UL, 0x2b2d53c3UL, 0x646cc504UL, 0x7d77f445UL, 0x565aa786UL, 0x4f4196c7UL, 0xc8d98a08UL, 0xd1c2bb49UL, 0xfaefe88aUL, 0xe3f4d9cbUL, 0xacb54f0cUL, 0xb5ae7e4dUL, 0x9e832d8eUL, 0x87981ccfUL, 0x4ac21251UL, 0x53d92310UL, 0x78f470d3UL, 0x61ef4192UL, 0x2eaed755UL, 0x37b5e614UL, 0x1c98b5d7UL, 0x05838496UL, 0x821b9859UL, 0x9b00a918UL, 0xb02dfadbUL, 0xa936cb9aUL, 0xe6775d5dUL, 0xff6c6c1cUL, 0xd4413fdfUL, 0xcd5a0e9eUL, 0x958424a2UL, 0x8c9f15e3UL, 0xa7b24620UL, 0xbea97761UL, 0xf1e8e1a6UL, 0xe8f3d0e7UL, 0xc3de8324UL, 0xdac5b265UL, 0x5d5daeaaUL, 0x44469febUL, 0x6f6bcc28UL, 0x7670fd69UL, 0x39316baeUL, 0x202a5aefUL, 0x0b07092cUL, 0x121c386dUL, 0xdf4636f3UL, 0xc65d07b2UL, 0xed705471UL, 0xf46b6530UL, 0xbb2af3f7UL, 0xa231c2b6UL, 0x891c9175UL, 0x9007a034UL, 0x179fbcfbUL, 0x0e848dbaUL, 0x25a9de79UL, 0x3cb2ef38UL, 0x73f379ffUL, 0x6ae848beUL, 0x41c51b7dUL, 0x58de2a3cUL, 0xf0794f05UL, 0xe9627e44UL, 0xc24f2d87UL, 0xdb541cc6UL, 0x94158a01UL, 0x8d0ebb40UL, 0xa623e883UL, 0xbf38d9c2UL, 0x38a0c50dUL, 0x21bbf44cUL, 0x0a96a78fUL, 0x138d96ceUL, 0x5ccc0009UL, 0x45d73148UL, 0x6efa628bUL, 0x77e153caUL, 0xbabb5d54UL, 0xa3a06c15UL, 0x888d3fd6UL, 0x91960e97UL, 0xded79850UL, 0xc7cca911UL, 0xece1fad2UL, 0xf5facb93UL, 0x7262d75cUL, 0x6b79e61dUL, 0x4054b5deUL, 0x594f849fUL, 0x160e1258UL, 0x0f152319UL, 0x243870daUL, 0x3d23419bUL, 0x65fd6ba7UL, 0x7ce65ae6UL, 0x57cb0925UL, 0x4ed03864UL, 0x0191aea3UL, 0x188a9fe2UL, 0x33a7cc21UL, 0x2abcfd60UL, 0xad24e1afUL, 0xb43fd0eeUL, 0x9f12832dUL, 0x8609b26cUL, 0xc94824abUL, 0xd05315eaUL, 0xfb7e4629UL, 0xe2657768UL, 0x2f3f79f6UL, 0x362448b7UL, 0x1d091b74UL, 0x04122a35UL, 0x4b53bcf2UL, 0x52488db3UL, 0x7965de70UL, 0x607eef31UL, 0xe7e6f3feUL, 0xfefdc2bfUL, 0xd5d0917cUL, 0xcccba03dUL, 0x838a36faUL, 0x9a9107bbUL, 0xb1bc5478UL, 0xa8a76539UL, 0x3b83984bUL, 0x2298a90aUL, 0x09b5fac9UL, 0x10aecb88UL, 0x5fef5d4fUL, 0x46f46c0eUL, 0x6dd93fcdUL, 0x74c20e8cUL, 0xf35a1243UL, 0xea412302UL, 0xc16c70c1UL, 0xd8774180UL, 0x9736d747UL, 0x8e2de606UL, 0xa500b5c5UL, 0xbc1b8484UL, 0x71418a1aUL, 0x685abb5bUL, 0x4377e898UL, 0x5a6cd9d9UL, 0x152d4f1eUL, 0x0c367e5fUL, 0x271b2d9cUL, 0x3e001cddUL, 0xb9980012UL, 0xa0833153UL, 0x8bae6290UL, 0x92b553d1UL, 0xddf4c516UL, 0xc4eff457UL, 0xefc2a794UL, 0xf6d996d5UL, 0xae07bce9UL, 0xb71c8da8UL, 0x9c31de6bUL, 0x852aef2aUL, 0xca6b79edUL, 0xd37048acUL, 0xf85d1b6fUL, 0xe1462a2eUL, 0x66de36e1UL, 0x7fc507a0UL, 0x54e85463UL, 0x4df36522UL, 0x02b2f3e5UL, 0x1ba9c2a4UL, 0x30849167UL, 0x299fa026UL, 0xe4c5aeb8UL, 0xfdde9ff9UL, 0xd6f3cc3aUL, 0xcfe8fd7bUL, 0x80a96bbcUL, 0x99b25afdUL, 0xb29f093eUL, 0xab84387fUL, 0x2c1c24b0UL, 0x350715f1UL, 0x1e2a4632UL, 0x07317773UL, 0x4870e1b4UL, 0x516bd0f5UL, 0x7a468336UL, 0x635db277UL, 0xcbfad74eUL, 0xd2e1e60fUL, 0xf9ccb5ccUL, 0xe0d7848dUL, 0xaf96124aUL, 0xb68d230bUL, 0x9da070c8UL, 0x84bb4189UL, 0x03235d46UL, 0x1a386c07UL, 0x31153fc4UL, 0x280e0e85UL, 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0xe41e14f3UL, 0x8179a84bUL, 0xd769cb13UL, 0xb20e77abUL, 0x5ca1c2b9UL, 0x39c67e01UL, 0x80fea99cUL, 0xe5991524UL, 0x0b36a036UL, 0x6e511c8eUL, 0xa7166686UL, 0xc271da3eUL, 0x2cde6f2cUL, 0x49b9d394UL, 0xf0810409UL, 0x95e6b8b1UL, 0x7b490da3UL, 0x1e2eb11bUL, 0x483ed243UL, 0x2d596efbUL, 0xc3f6dbe9UL, 0xa6916751UL, 0x1fa9b0ccUL, 0x7ace0c74UL, 0x9461b966UL, 0xf10605deUL #endif } }; unalz/zlib/infback.c00007000001040€ÿÿÿÿ0000005440310404306311017162 0ustar Administrators????????/* infback.c -- inflate using a call-back interface * Copyright (C) 1995-2005 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ /* This code is largely copied from inflate.c. Normally either infback.o or inflate.o would be linked into an application--not both. The interface with inffast.c is retained so that optimized assembler-coded versions of inflate_fast() can be used with either inflate.c or infback.c. */ #include "zutil.h" #include "inftrees.h" #include "inflate.h" #include "inffast.h" /* function prototypes */ local void fixedtables OF((struct inflate_state FAR *state)); /* strm provides memory allocation functions in zalloc and zfree, or Z_NULL to use the library memory allocation functions. windowBits is in the range 8..15, and window is a user-supplied window and output buffer that is 2**windowBits bytes. */ int ZEXPORT inflateBackInit_(strm, windowBits, window, version, stream_size) z_streamp strm; int windowBits; unsigned char FAR *window; const char *version; int stream_size; { struct inflate_state FAR *state; if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || stream_size != (int)(sizeof(z_stream))) return Z_VERSION_ERROR; if (strm == Z_NULL || window == Z_NULL || windowBits < 8 || windowBits > 15) return Z_STREAM_ERROR; strm->msg = Z_NULL; /* in case we return an error */ if (strm->zalloc == (alloc_func)0) { strm->zalloc = zcalloc; strm->opaque = (voidpf)0; } if (strm->zfree == (free_func)0) strm->zfree = zcfree; state = (struct inflate_state FAR *)ZALLOC(strm, 1, sizeof(struct inflate_state)); if (state == Z_NULL) return Z_MEM_ERROR; Tracev((stderr, "inflate: allocated\n")); strm->state = (struct internal_state FAR *)state; state->dmax = 32768U; state->wbits = windowBits; state->wsize = 1U << windowBits; state->window = window; state->write = 0; state->whave = 0; return Z_OK; } /* Return state with length and distance decoding tables and index sizes set to fixed code decoding. Normally this returns fixed tables from inffixed.h. If BUILDFIXED is defined, then instead this routine builds the tables the first time it's called, and returns those tables the first time and thereafter. This reduces the size of the code by about 2K bytes, in exchange for a little execution time. However, BUILDFIXED should not be used for threaded applications, since the rewriting of the tables and virgin may not be thread-safe. */ local void fixedtables(state) struct inflate_state FAR *state; { #ifdef BUILDFIXED static int virgin = 1; static code *lenfix, *distfix; static code fixed[544]; /* build fixed huffman tables if first call (may not be thread safe) */ if (virgin) { unsigned sym, bits; static code *next; /* literal/length table */ sym = 0; while (sym < 144) state->lens[sym++] = 8; while (sym < 256) state->lens[sym++] = 9; while (sym < 280) state->lens[sym++] = 7; while (sym < 288) state->lens[sym++] = 8; next = fixed; lenfix = next; bits = 9; inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work); /* distance table */ sym = 0; while (sym < 32) state->lens[sym++] = 5; distfix = next; bits = 5; inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work); /* do this just once */ virgin = 0; } #else /* !BUILDFIXED */ # include "inffixed.h" #endif /* BUILDFIXED */ state->lencode = lenfix; state->lenbits = 9; state->distcode = distfix; state->distbits = 5; } /* Macros for inflateBack(): */ /* Load returned state from inflate_fast() */ #define LOAD() \ do { \ put = strm->next_out; \ left = strm->avail_out; \ next = strm->next_in; \ have = strm->avail_in; \ hold = state->hold; \ bits = state->bits; \ } while (0) /* Set state from registers for inflate_fast() */ #define RESTORE() \ do { \ strm->next_out = put; \ strm->avail_out = left; \ strm->next_in = next; \ strm->avail_in = have; \ state->hold = hold; \ state->bits = bits; \ } while (0) /* Clear the input bit accumulator */ #define INITBITS() \ do { \ hold = 0; \ bits = 0; \ } while (0) /* Assure that some input is available. If input is requested, but denied, then return a Z_BUF_ERROR from inflateBack(). */ #define PULL() \ do { \ if (have == 0) { \ have = in(in_desc, &next); \ if (have == 0) { \ next = Z_NULL; \ ret = Z_BUF_ERROR; \ goto inf_leave; \ } \ } \ } while (0) /* Get a byte of input into the bit accumulator, or return from inflateBack() with an error if there is no input available. */ #define PULLBYTE() \ do { \ PULL(); \ have--; \ hold += (unsigned long)(*next++) << bits; \ bits += 8; \ } while (0) /* Assure that there are at least n bits in the bit accumulator. If there is not enough available input to do that, then return from inflateBack() with an error. */ #define NEEDBITS(n) \ do { \ while (bits < (unsigned)(n)) \ PULLBYTE(); \ } while (0) /* Return the low n bits of the bit accumulator (n < 16) */ #define BITS(n) \ ((unsigned)hold & ((1U << (n)) - 1)) /* Remove n bits from the bit accumulator */ #define DROPBITS(n) \ do { \ hold >>= (n); \ bits -= (unsigned)(n); \ } while (0) /* Remove zero to seven bits as needed to go to a byte boundary */ #define BYTEBITS() \ do { \ hold >>= bits & 7; \ bits -= bits & 7; \ } while (0) /* Assure that some output space is available, by writing out the window if it's full. If the write fails, return from inflateBack() with a Z_BUF_ERROR. */ #define ROOM() \ do { \ if (left == 0) { \ put = state->window; \ left = state->wsize; \ state->whave = left; \ if (out(out_desc, put, left)) { \ ret = Z_BUF_ERROR; \ goto inf_leave; \ } \ } \ } while (0) /* strm provides the memory allocation functions and window buffer on input, and provides information on the unused input on return. For Z_DATA_ERROR returns, strm will also provide an error message. in() and out() are the call-back input and output functions. When inflateBack() needs more input, it calls in(). When inflateBack() has filled the window with output, or when it completes with data in the window, it calls out() to write out the data. The application must not change the provided input until in() is called again or inflateBack() returns. The application must not change the window/output buffer until inflateBack() returns. in() and out() are called with a descriptor parameter provided in the inflateBack() call. This parameter can be a structure that provides the information required to do the read or write, as well as accumulated information on the input and output such as totals and check values. in() should return zero on failure. out() should return non-zero on failure. If either in() or out() fails, than inflateBack() returns a Z_BUF_ERROR. strm->next_in can be checked for Z_NULL to see whether it was in() or out() that caused in the error. Otherwise, inflateBack() returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format error, or Z_MEM_ERROR if it could not allocate memory for the state. inflateBack() can also return Z_STREAM_ERROR if the input parameters are not correct, i.e. strm is Z_NULL or the state was not initialized. */ int ZEXPORT inflateBack(strm, in, in_desc, out, out_desc) z_streamp strm; in_func in; void FAR *in_desc; out_func out; void FAR *out_desc; { struct inflate_state FAR *state; unsigned char FAR *next; /* next input */ unsigned char FAR *put; /* next output */ unsigned have, left; /* available input and output */ unsigned long hold; /* bit buffer */ unsigned bits; /* bits in bit buffer */ unsigned copy; /* number of stored or match bytes to copy */ unsigned char FAR *from; /* where to copy match bytes from */ code this; /* current decoding table entry */ code last; /* parent table entry */ unsigned len; /* length to copy for repeats, bits to drop */ int ret; /* return code */ static const unsigned short order[19] = /* permutation of code lengths */ {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; /* Check that the strm exists and that the state was initialized */ if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; /* Reset the state */ strm->msg = Z_NULL; state->mode = TYPE; state->last = 0; state->whave = 0; next = strm->next_in; have = next != Z_NULL ? strm->avail_in : 0; hold = 0; bits = 0; put = state->window; left = state->wsize; /* Inflate until end of block marked as last */ for (;;) switch (state->mode) { case TYPE: /* determine and dispatch block type */ if (state->last) { BYTEBITS(); state->mode = DONE; break; } NEEDBITS(3); state->last = BITS(1); DROPBITS(1); switch (BITS(2)) { case 0: /* stored block */ Tracev((stderr, "inflate: stored block%s\n", state->last ? " (last)" : "")); state->mode = STORED; break; case 1: /* fixed block */ fixedtables(state); Tracev((stderr, "inflate: fixed codes block%s\n", state->last ? " (last)" : "")); state->mode = LEN; /* decode codes */ break; case 2: /* dynamic block */ Tracev((stderr, "inflate: dynamic codes block%s\n", state->last ? " (last)" : "")); state->mode = TABLE; break; case 3: strm->msg = (char *)"invalid block type"; state->mode = BAD; } DROPBITS(2); break; case STORED: /* get and verify stored block length */ BYTEBITS(); /* go to byte boundary */ NEEDBITS(32); if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) { strm->msg = (char *)"invalid stored block lengths"; state->mode = BAD; break; } state->length = (unsigned)hold & 0xffff; Tracev((stderr, "inflate: stored length %u\n", state->length)); INITBITS(); /* copy stored block from input to output */ while (state->length != 0) { copy = state->length; PULL(); ROOM(); if (copy > have) copy = have; if (copy > left) copy = left; zmemcpy(put, next, copy); have -= copy; next += copy; left -= copy; put += copy; state->length -= copy; } Tracev((stderr, "inflate: stored end\n")); state->mode = TYPE; break; case TABLE: /* get dynamic table entries descriptor */ NEEDBITS(14); state->nlen = BITS(5) + 257; DROPBITS(5); state->ndist = BITS(5) + 1; DROPBITS(5); state->ncode = BITS(4) + 4; DROPBITS(4); #ifndef PKZIP_BUG_WORKAROUND if (state->nlen > 286 || state->ndist > 30) { strm->msg = (char *)"too many length or distance symbols"; state->mode = BAD; break; } #endif Tracev((stderr, "inflate: table sizes ok\n")); /* get code length code lengths (not a typo) */ state->have = 0; while (state->have < state->ncode) { NEEDBITS(3); state->lens[order[state->have++]] = (unsigned short)BITS(3); DROPBITS(3); } while (state->have < 19) state->lens[order[state->have++]] = 0; state->next = state->codes; state->lencode = (code const FAR *)(state->next); state->lenbits = 7; ret = inflate_table(CODES, state->lens, 19, &(state->next), &(state->lenbits), state->work); if (ret) { strm->msg = (char *)"invalid code lengths set"; state->mode = BAD; break; } Tracev((stderr, "inflate: code lengths ok\n")); /* get length and distance code code lengths */ state->have = 0; while (state->have < state->nlen + state->ndist) { for (;;) { this = state->lencode[BITS(state->lenbits)]; if ((unsigned)(this.bits) <= bits) break; PULLBYTE(); } if (this.val < 16) { NEEDBITS(this.bits); DROPBITS(this.bits); state->lens[state->have++] = this.val; } else { if (this.val == 16) { NEEDBITS(this.bits + 2); DROPBITS(this.bits); if (state->have == 0) { strm->msg = (char *)"invalid bit length repeat"; state->mode = BAD; break; } len = (unsigned)(state->lens[state->have - 1]); copy = 3 + BITS(2); DROPBITS(2); } else if (this.val == 17) { NEEDBITS(this.bits + 3); DROPBITS(this.bits); len = 0; copy = 3 + BITS(3); DROPBITS(3); } else { NEEDBITS(this.bits + 7); DROPBITS(this.bits); len = 0; copy = 11 + BITS(7); DROPBITS(7); } if (state->have + copy > state->nlen + state->ndist) { strm->msg = (char *)"invalid bit length repeat"; state->mode = BAD; break; } while (copy--) state->lens[state->have++] = (unsigned short)len; } } /* handle error breaks in while */ if (state->mode == BAD) break; /* build code tables */ state->next = state->codes; state->lencode = (code const FAR *)(state->next); state->lenbits = 9; ret = inflate_table(LENS, state->lens, state->nlen, &(state->next), &(state->lenbits), state->work); if (ret) { strm->msg = (char *)"invalid literal/lengths set"; state->mode = BAD; break; } state->distcode = (code const FAR *)(state->next); state->distbits = 6; ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist, &(state->next), &(state->distbits), state->work); if (ret) { strm->msg = (char *)"invalid distances set"; state->mode = BAD; break; } Tracev((stderr, "inflate: codes ok\n")); state->mode = LEN; case LEN: /* use inflate_fast() if we have enough input and output */ if (have >= 6 && left >= 258) { RESTORE(); if (state->whave < state->wsize) state->whave = state->wsize - left; inflate_fast(strm, state->wsize); LOAD(); break; } /* get a literal, length, or end-of-block code */ for (;;) { this = state->lencode[BITS(state->lenbits)]; if ((unsigned)(this.bits) <= bits) break; PULLBYTE(); } if (this.op && (this.op & 0xf0) == 0) { last = this; for (;;) { this = state->lencode[last.val + (BITS(last.bits + last.op) >> last.bits)]; if ((unsigned)(last.bits + this.bits) <= bits) break; PULLBYTE(); } DROPBITS(last.bits); } DROPBITS(this.bits); state->length = (unsigned)this.val; /* process literal */ if (this.op == 0) { Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ? "inflate: literal '%c'\n" : "inflate: literal 0x%02x\n", this.val)); ROOM(); *put++ = (unsigned char)(state->length); left--; state->mode = LEN; break; } /* process end of block */ if (this.op & 32) { Tracevv((stderr, "inflate: end of block\n")); state->mode = TYPE; break; } /* invalid code */ if (this.op & 64) { strm->msg = (char *)"invalid literal/length code"; state->mode = BAD; break; } /* length code -- get extra bits, if any */ state->extra = (unsigned)(this.op) & 15; if (state->extra != 0) { NEEDBITS(state->extra); state->length += BITS(state->extra); DROPBITS(state->extra); } Tracevv((stderr, "inflate: length %u\n", state->length)); /* get distance code */ for (;;) { this = state->distcode[BITS(state->distbits)]; if ((unsigned)(this.bits) <= bits) break; PULLBYTE(); } if ((this.op & 0xf0) == 0) { last = this; for (;;) { this = state->distcode[last.val + (BITS(last.bits + last.op) >> last.bits)]; if ((unsigned)(last.bits + this.bits) <= bits) break; PULLBYTE(); } DROPBITS(last.bits); } DROPBITS(this.bits); if (this.op & 64) { strm->msg = (char *)"invalid distance code"; state->mode = BAD; break; } state->offset = (unsigned)this.val; /* get distance extra bits, if any */ state->extra = (unsigned)(this.op) & 15; if (state->extra != 0) { NEEDBITS(state->extra); state->offset += BITS(state->extra); DROPBITS(state->extra); } if (state->offset > state->wsize - (state->whave < state->wsize ? left : 0)) { strm->msg = (char *)"invalid distance too far back"; state->mode = BAD; break; } Tracevv((stderr, "inflate: distance %u\n", state->offset)); /* copy match from window to output */ do { ROOM(); copy = state->wsize - state->offset; if (copy < left) { from = put + copy; copy = left - copy; } else { from = put - state->offset; copy = left; } if (copy > state->length) copy = state->length; state->length -= copy; left -= copy; do { *put++ = *from++; } while (--copy); } while (state->length != 0); break; case DONE: /* inflate stream terminated properly -- write leftover output */ ret = Z_STREAM_END; if (left < state->wsize) { if (out(out_desc, state->window, state->wsize - left)) ret = Z_BUF_ERROR; } goto inf_leave; case BAD: ret = Z_DATA_ERROR; goto inf_leave; default: /* can't happen, but makes compilers happy */ ret = Z_STREAM_ERROR; goto inf_leave; } /* Return unused input */ inf_leave: strm->next_in = next; strm->avail_in = have; return ret; } int ZEXPORT inflateBackEnd(strm) z_streamp strm; { if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0) return Z_STREAM_ERROR; ZFREE(strm, strm->state); strm->state = Z_NULL; Tracev((stderr, "inflate: end\n")); return Z_OK; } unalz/zlib/inffast.c00007000001040€ÿÿÿÿ0000003112610404306311017214 0ustar Administrators????????/* inffast.c -- fast decoding * Copyright (C) 1995-2004 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ #include "zutil.h" #include "inftrees.h" #include "inflate.h" #include "inffast.h" #ifndef ASMINF /* Allow machine dependent optimization for post-increment or pre-increment. Based on testing to date, Pre-increment preferred for: - PowerPC G3 (Adler) - MIPS R5000 (Randers-Pehrson) Post-increment preferred for: - none No measurable difference: - Pentium III (Anderson) - M68060 (Nikl) */ #ifdef POSTINC # define OFF 0 # define PUP(a) *(a)++ #else # define OFF 1 # define PUP(a) *++(a) #endif /* Decode literal, length, and distance codes and write out the resulting literal and match bytes until either not enough input or output is available, an end-of-block is encountered, or a data error is encountered. When large enough input and output buffers are supplied to inflate(), for example, a 16K input buffer and a 64K output buffer, more than 95% of the inflate execution time is spent in this routine. Entry assumptions: state->mode == LEN strm->avail_in >= 6 strm->avail_out >= 258 start >= strm->avail_out state->bits < 8 On return, state->mode is one of: LEN -- ran out of enough output space or enough available input TYPE -- reached end of block code, inflate() to interpret next block BAD -- error in block data Notes: - The maximum input bits used by a length/distance pair is 15 bits for the length code, 5 bits for the length extra, 15 bits for the distance code, and 13 bits for the distance extra. This totals 48 bits, or six bytes. Therefore if strm->avail_in >= 6, then there is enough input to avoid checking for available input while decoding. - The maximum bytes that a single length/distance pair can output is 258 bytes, which is the maximum length that can be coded. inflate_fast() requires strm->avail_out >= 258 for each loop to avoid checking for output space. */ void inflate_fast(strm, start) z_streamp strm; unsigned start; /* inflate()'s starting value for strm->avail_out */ { struct inflate_state FAR *state; unsigned char FAR *in; /* local strm->next_in */ unsigned char FAR *last; /* while in < last, enough input available */ unsigned char FAR *out; /* local strm->next_out */ unsigned char FAR *beg; /* inflate()'s initial strm->next_out */ unsigned char FAR *end; /* while out < end, enough space available */ #ifdef INFLATE_STRICT unsigned dmax; /* maximum distance from zlib header */ #endif unsigned wsize; /* window size or zero if not using window */ unsigned whave; /* valid bytes in the window */ unsigned write; /* window write index */ unsigned char FAR *window; /* allocated sliding window, if wsize != 0 */ unsigned long hold; /* local strm->hold */ unsigned bits; /* local strm->bits */ code const FAR *lcode; /* local strm->lencode */ code const FAR *dcode; /* local strm->distcode */ unsigned lmask; /* mask for first level of length codes */ unsigned dmask; /* mask for first level of distance codes */ code this; /* retrieved table entry */ unsigned op; /* code bits, operation, extra bits, or */ /* window position, window bytes to copy */ unsigned len; /* match length, unused bytes */ unsigned dist; /* match distance */ unsigned char FAR *from; /* where to copy match from */ /* copy state to local variables */ state = (struct inflate_state FAR *)strm->state; in = strm->next_in - OFF; last = in + (strm->avail_in - 5); out = strm->next_out - OFF; beg = out - (start - strm->avail_out); end = out + (strm->avail_out - 257); #ifdef INFLATE_STRICT dmax = state->dmax; #endif wsize = state->wsize; whave = state->whave; write = state->write; window = state->window; hold = state->hold; bits = state->bits; lcode = state->lencode; dcode = state->distcode; lmask = (1U << state->lenbits) - 1; dmask = (1U << state->distbits) - 1; /* decode literals and length/distances until end-of-block or not enough input data or output space */ do { if (bits < 15) { hold += (unsigned long)(PUP(in)) << bits; bits += 8; hold += (unsigned long)(PUP(in)) << bits; bits += 8; } this = lcode[hold & lmask]; dolen: op = (unsigned)(this.bits); hold >>= op; bits -= op; op = (unsigned)(this.op); if (op == 0) { /* literal */ Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ? "inflate: literal '%c'\n" : "inflate: literal 0x%02x\n", this.val)); PUP(out) = (unsigned char)(this.val); } else if (op & 16) { /* length base */ len = (unsigned)(this.val); op &= 15; /* number of extra bits */ if (op) { if (bits < op) { hold += (unsigned long)(PUP(in)) << bits; bits += 8; } len += (unsigned)hold & ((1U << op) - 1); hold >>= op; bits -= op; } Tracevv((stderr, "inflate: length %u\n", len)); if (bits < 15) { hold += (unsigned long)(PUP(in)) << bits; bits += 8; hold += (unsigned long)(PUP(in)) << bits; bits += 8; } this = dcode[hold & dmask]; dodist: op = (unsigned)(this.bits); hold >>= op; bits -= op; op = (unsigned)(this.op); if (op & 16) { /* distance base */ dist = (unsigned)(this.val); op &= 15; /* number of extra bits */ if (bits < op) { hold += (unsigned long)(PUP(in)) << bits; bits += 8; if (bits < op) { hold += (unsigned long)(PUP(in)) << bits; bits += 8; } } dist += (unsigned)hold & ((1U << op) - 1); #ifdef INFLATE_STRICT if (dist > dmax) { strm->msg = (char *)"invalid distance too far back"; state->mode = BAD; break; } #endif hold >>= op; bits -= op; Tracevv((stderr, "inflate: distance %u\n", dist)); op = (unsigned)(out - beg); /* max distance in output */ if (dist > op) { /* see if copy from window */ op = dist - op; /* distance back in window */ if (op > whave) { strm->msg = (char *)"invalid distance too far back"; state->mode = BAD; break; } from = window - OFF; if (write == 0) { /* very common case */ from += wsize - op; if (op < len) { /* some from window */ len -= op; do { PUP(out) = PUP(from); } while (--op); from = out - dist; /* rest from output */ } } else if (write < op) { /* wrap around window */ from += wsize + write - op; op -= write; if (op < len) { /* some from end of window */ len -= op; do { PUP(out) = PUP(from); } while (--op); from = window - OFF; if (write < len) { /* some from start of window */ op = write; len -= op; do { PUP(out) = PUP(from); } while (--op); from = out - dist; /* rest from output */ } } } else { /* contiguous in window */ from += write - op; if (op < len) { /* some from window */ len -= op; do { PUP(out) = PUP(from); } while (--op); from = out - dist; /* rest from output */ } } while (len > 2) { PUP(out) = PUP(from); PUP(out) = PUP(from); PUP(out) = PUP(from); len -= 3; } if (len) { PUP(out) = PUP(from); if (len > 1) PUP(out) = PUP(from); } } else { from = out - dist; /* copy direct from output */ do { /* minimum length is three */ PUP(out) = PUP(from); PUP(out) = PUP(from); PUP(out) = PUP(from); len -= 3; } while (len > 2); if (len) { PUP(out) = PUP(from); if (len > 1) PUP(out) = PUP(from); } } } else if ((op & 64) == 0) { /* 2nd level distance code */ this = dcode[this.val + (hold & ((1U << op) - 1))]; goto dodist; } else { strm->msg = (char *)"invalid distance code"; state->mode = BAD; break; } } else if ((op & 64) == 0) { /* 2nd level length code */ this = lcode[this.val + (hold & ((1U << op) - 1))]; goto dolen; } else if (op & 32) { /* end-of-block */ Tracevv((stderr, "inflate: end of block\n")); state->mode = TYPE; break; } else { strm->msg = (char *)"invalid literal/length code"; state->mode = BAD; break; } } while (in < last && out < end); /* return unused bytes (on entry, bits < 8, so in won't go too far back) */ len = bits >> 3; in -= len; bits -= len << 3; hold &= (1U << bits) - 1; /* update state and return */ strm->next_in = in + OFF; strm->next_out = out + OFF; strm->avail_in = (unsigned)(in < last ? 5 + (last - in) : 5 - (in - last)); strm->avail_out = (unsigned)(out < end ? 257 + (end - out) : 257 - (out - end)); state->hold = hold; state->bits = bits; return; } /* inflate_fast() speedups that turned out slower (on a PowerPC G3 750CXe): - Using bit fields for code structure - Different op definition to avoid & for extra bits (do & for table bits) - Three separate decoding do-loops for direct, window, and write == 0 - Special case for distance > 1 copies to do overlapped load and store copy - Explicit branch predictions (based on measured branch probabilities) - Deferring match copy and interspersed it with decoding subsequent codes - Swapping literal/length else - Swapping window/direct else - Larger unrolled copy loops (three is about right) - Moving len -= 3 statement into middle of loop */ #endif /* !ASMINF */ unalz/zlib/inffast.h00007000001040€ÿÿÿÿ0000000064210326522202017222 0ustar Administrators????????/* inffast.h -- header to use inffast.c * Copyright (C) 1995-2003 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ /* WARNING: this file should *not* be used by applications. It is part of the implementation of the compression library and is subject to change. Applications should only use zlib.h. */ void inflate_fast OF((z_streamp strm, unsigned start)); unalz/zlib/inffixed.h00007000001040€ÿÿÿÿ0000001444510326522203017373 0ustar Administrators???????? /* inffixed.h -- table for decoding fixed codes * Generated automatically by makefixed(). */ /* WARNING: this file should *not* be used by applications. It is part of the implementation of the compression library and is subject to change. Applications should only use zlib.h. */ static const code lenfix[512] = { {96,7,0},{0,8,80},{0,8,16},{20,8,115},{18,7,31},{0,8,112},{0,8,48}, {0,9,192},{16,7,10},{0,8,96},{0,8,32},{0,9,160},{0,8,0},{0,8,128}, {0,8,64},{0,9,224},{16,7,6},{0,8,88},{0,8,24},{0,9,144},{19,7,59}, {0,8,120},{0,8,56},{0,9,208},{17,7,17},{0,8,104},{0,8,40},{0,9,176}, {0,8,8},{0,8,136},{0,8,72},{0,9,240},{16,7,4},{0,8,84},{0,8,20}, {21,8,227},{19,7,43},{0,8,116},{0,8,52},{0,9,200},{17,7,13},{0,8,100}, {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232},{16,7,8}, {0,8,92},{0,8,28},{0,9,152},{20,7,83},{0,8,124},{0,8,60},{0,9,216}, {18,7,23},{0,8,108},{0,8,44},{0,9,184},{0,8,12},{0,8,140},{0,8,76}, {0,9,248},{16,7,3},{0,8,82},{0,8,18},{21,8,163},{19,7,35},{0,8,114}, {0,8,50},{0,9,196},{17,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2}, {0,8,130},{0,8,66},{0,9,228},{16,7,7},{0,8,90},{0,8,26},{0,9,148}, {20,7,67},{0,8,122},{0,8,58},{0,9,212},{18,7,19},{0,8,106},{0,8,42}, {0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244},{16,7,5},{0,8,86}, {0,8,22},{64,8,0},{19,7,51},{0,8,118},{0,8,54},{0,9,204},{17,7,15}, {0,8,102},{0,8,38},{0,9,172},{0,8,6},{0,8,134},{0,8,70},{0,9,236}, {16,7,9},{0,8,94},{0,8,30},{0,9,156},{20,7,99},{0,8,126},{0,8,62}, {0,9,220},{18,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142}, {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{21,8,131},{18,7,31}, {0,8,113},{0,8,49},{0,9,194},{16,7,10},{0,8,97},{0,8,33},{0,9,162}, {0,8,1},{0,8,129},{0,8,65},{0,9,226},{16,7,6},{0,8,89},{0,8,25}, {0,9,146},{19,7,59},{0,8,121},{0,8,57},{0,9,210},{17,7,17},{0,8,105}, {0,8,41},{0,9,178},{0,8,9},{0,8,137},{0,8,73},{0,9,242},{16,7,4}, {0,8,85},{0,8,21},{16,8,258},{19,7,43},{0,8,117},{0,8,53},{0,9,202}, {17,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133},{0,8,69}, {0,9,234},{16,7,8},{0,8,93},{0,8,29},{0,9,154},{20,7,83},{0,8,125}, {0,8,61},{0,9,218},{18,7,23},{0,8,109},{0,8,45},{0,9,186},{0,8,13}, {0,8,141},{0,8,77},{0,9,250},{16,7,3},{0,8,83},{0,8,19},{21,8,195}, {19,7,35},{0,8,115},{0,8,51},{0,9,198},{17,7,11},{0,8,99},{0,8,35}, {0,9,166},{0,8,3},{0,8,131},{0,8,67},{0,9,230},{16,7,7},{0,8,91}, {0,8,27},{0,9,150},{20,7,67},{0,8,123},{0,8,59},{0,9,214},{18,7,19}, {0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139},{0,8,75},{0,9,246}, {16,7,5},{0,8,87},{0,8,23},{64,8,0},{19,7,51},{0,8,119},{0,8,55}, {0,9,206},{17,7,15},{0,8,103},{0,8,39},{0,9,174},{0,8,7},{0,8,135}, {0,8,71},{0,9,238},{16,7,9},{0,8,95},{0,8,31},{0,9,158},{20,7,99}, {0,8,127},{0,8,63},{0,9,222},{18,7,27},{0,8,111},{0,8,47},{0,9,190}, {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80},{0,8,16}, {20,8,115},{18,7,31},{0,8,112},{0,8,48},{0,9,193},{16,7,10},{0,8,96}, {0,8,32},{0,9,161},{0,8,0},{0,8,128},{0,8,64},{0,9,225},{16,7,6}, {0,8,88},{0,8,24},{0,9,145},{19,7,59},{0,8,120},{0,8,56},{0,9,209}, {17,7,17},{0,8,104},{0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72}, {0,9,241},{16,7,4},{0,8,84},{0,8,20},{21,8,227},{19,7,43},{0,8,116}, {0,8,52},{0,9,201},{17,7,13},{0,8,100},{0,8,36},{0,9,169},{0,8,4}, {0,8,132},{0,8,68},{0,9,233},{16,7,8},{0,8,92},{0,8,28},{0,9,153}, {20,7,83},{0,8,124},{0,8,60},{0,9,217},{18,7,23},{0,8,108},{0,8,44}, {0,9,185},{0,8,12},{0,8,140},{0,8,76},{0,9,249},{16,7,3},{0,8,82}, {0,8,18},{21,8,163},{19,7,35},{0,8,114},{0,8,50},{0,9,197},{17,7,11}, {0,8,98},{0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229}, {16,7,7},{0,8,90},{0,8,26},{0,9,149},{20,7,67},{0,8,122},{0,8,58}, {0,9,213},{18,7,19},{0,8,106},{0,8,42},{0,9,181},{0,8,10},{0,8,138}, {0,8,74},{0,9,245},{16,7,5},{0,8,86},{0,8,22},{64,8,0},{19,7,51}, {0,8,118},{0,8,54},{0,9,205},{17,7,15},{0,8,102},{0,8,38},{0,9,173}, {0,8,6},{0,8,134},{0,8,70},{0,9,237},{16,7,9},{0,8,94},{0,8,30}, {0,9,157},{20,7,99},{0,8,126},{0,8,62},{0,9,221},{18,7,27},{0,8,110}, {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253},{96,7,0}, {0,8,81},{0,8,17},{21,8,131},{18,7,31},{0,8,113},{0,8,49},{0,9,195}, {16,7,10},{0,8,97},{0,8,33},{0,9,163},{0,8,1},{0,8,129},{0,8,65}, {0,9,227},{16,7,6},{0,8,89},{0,8,25},{0,9,147},{19,7,59},{0,8,121}, {0,8,57},{0,9,211},{17,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9}, {0,8,137},{0,8,73},{0,9,243},{16,7,4},{0,8,85},{0,8,21},{16,8,258}, {19,7,43},{0,8,117},{0,8,53},{0,9,203},{17,7,13},{0,8,101},{0,8,37}, {0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235},{16,7,8},{0,8,93}, {0,8,29},{0,9,155},{20,7,83},{0,8,125},{0,8,61},{0,9,219},{18,7,23}, {0,8,109},{0,8,45},{0,9,187},{0,8,13},{0,8,141},{0,8,77},{0,9,251}, {16,7,3},{0,8,83},{0,8,19},{21,8,195},{19,7,35},{0,8,115},{0,8,51}, {0,9,199},{17,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131}, {0,8,67},{0,9,231},{16,7,7},{0,8,91},{0,8,27},{0,9,151},{20,7,67}, {0,8,123},{0,8,59},{0,9,215},{18,7,19},{0,8,107},{0,8,43},{0,9,183}, {0,8,11},{0,8,139},{0,8,75},{0,9,247},{16,7,5},{0,8,87},{0,8,23}, {64,8,0},{19,7,51},{0,8,119},{0,8,55},{0,9,207},{17,7,15},{0,8,103}, {0,8,39},{0,9,175},{0,8,7},{0,8,135},{0,8,71},{0,9,239},{16,7,9}, {0,8,95},{0,8,31},{0,9,159},{20,7,99},{0,8,127},{0,8,63},{0,9,223}, {18,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143},{0,8,79}, {0,9,255} }; static const code distfix[32] = { {16,5,1},{23,5,257},{19,5,17},{27,5,4097},{17,5,5},{25,5,1025}, {21,5,65},{29,5,16385},{16,5,3},{24,5,513},{20,5,33},{28,5,8193}, {18,5,9},{26,5,2049},{22,5,129},{64,5,0},{16,5,2},{23,5,385}, {19,5,25},{27,5,6145},{17,5,7},{25,5,1537},{21,5,97},{29,5,24577}, {16,5,4},{24,5,769},{20,5,49},{28,5,12289},{18,5,13},{26,5,3073}, {22,5,193},{64,5,0} }; unalz/zlib/inflate.c00007000001040€ÿÿÿÿ0000014225110404306311017206 0ustar Administrators????????/* inflate.c -- zlib decompression * Copyright (C) 1995-2005 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ /* * Change history: * * 1.2.beta0 24 Nov 2002 * - First version -- complete rewrite of inflate to simplify code, avoid * creation of window when not needed, minimize use of window when it is * needed, make inffast.c even faster, implement gzip decoding, and to * improve code readability and style over the previous zlib inflate code * * 1.2.beta1 25 Nov 2002 * - Use pointers for available input and output checking in inffast.c * - Remove input and output counters in inffast.c * - Change inffast.c entry and loop from avail_in >= 7 to >= 6 * - Remove unnecessary second byte pull from length extra in inffast.c * - Unroll direct copy to three copies per loop in inffast.c * * 1.2.beta2 4 Dec 2002 * - Change external routine names to reduce potential conflicts * - Correct filename to inffixed.h for fixed tables in inflate.c * - Make hbuf[] unsigned char to match parameter type in inflate.c * - Change strm->next_out[-state->offset] to *(strm->next_out - state->offset) * to avoid negation problem on Alphas (64 bit) in inflate.c * * 1.2.beta3 22 Dec 2002 * - Add comments on state->bits assertion in inffast.c * - Add comments on op field in inftrees.h * - Fix bug in reuse of allocated window after inflateReset() * - Remove bit fields--back to byte structure for speed * - Remove distance extra == 0 check in inflate_fast()--only helps for lengths * - Change post-increments to pre-increments in inflate_fast(), PPC biased? * - Add compile time option, POSTINC, to use post-increments instead (Intel?) * - Make MATCH copy in inflate() much faster for when inflate_fast() not used * - Use local copies of stream next and avail values, as well as local bit * buffer and bit count in inflate()--for speed when inflate_fast() not used * * 1.2.beta4 1 Jan 2003 * - Split ptr - 257 statements in inflate_table() to avoid compiler warnings * - Move a comment on output buffer sizes from inffast.c to inflate.c * - Add comments in inffast.c to introduce the inflate_fast() routine * - Rearrange window copies in inflate_fast() for speed and simplification * - Unroll last copy for window match in inflate_fast() * - Use local copies of window variables in inflate_fast() for speed * - Pull out common write == 0 case for speed in inflate_fast() * - Make op and len in inflate_fast() unsigned for consistency * - Add FAR to lcode and dcode declarations in inflate_fast() * - Simplified bad distance check in inflate_fast() * - Added inflateBackInit(), inflateBack(), and inflateBackEnd() in new * source file infback.c to provide a call-back interface to inflate for * programs like gzip and unzip -- uses window as output buffer to avoid * window copying * * 1.2.beta5 1 Jan 2003 * - Improved inflateBack() interface to allow the caller to provide initial * input in strm. * - Fixed stored blocks bug in inflateBack() * * 1.2.beta6 4 Jan 2003 * - Added comments in inffast.c on effectiveness of POSTINC * - Typecasting all around to reduce compiler warnings * - Changed loops from while (1) or do {} while (1) to for (;;), again to * make compilers happy * - Changed type of window in inflateBackInit() to unsigned char * * * 1.2.beta7 27 Jan 2003 * - Changed many types to unsigned or unsigned short to avoid warnings * - Added inflateCopy() function * * 1.2.0 9 Mar 2003 * - Changed inflateBack() interface to provide separate opaque descriptors * for the in() and out() functions * - Changed inflateBack() argument and in_func typedef to swap the length * and buffer address return values for the input function * - Check next_in and next_out for Z_NULL on entry to inflate() * * The history for versions after 1.2.0 are in ChangeLog in zlib distribution. */ #include "zutil.h" #include "inftrees.h" #include "inflate.h" #include "inffast.h" #ifdef MAKEFIXED # ifndef BUILDFIXED # define BUILDFIXED # endif #endif /* function prototypes */ local void fixedtables OF((struct inflate_state FAR *state)); local int updatewindow OF((z_streamp strm, unsigned out)); #ifdef BUILDFIXED void makefixed OF((void)); #endif local unsigned syncsearch OF((unsigned FAR *have, unsigned char FAR *buf, unsigned len)); int ZEXPORT inflateReset(strm) z_streamp strm; { struct inflate_state FAR *state; if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; strm->total_in = strm->total_out = state->total = 0; strm->msg = Z_NULL; strm->adler = 1; /* to support ill-conceived Java test suite */ state->mode = HEAD; state->last = 0; state->havedict = 0; state->dmax = 32768U; state->head = Z_NULL; state->wsize = 0; state->whave = 0; state->write = 0; state->hold = 0; state->bits = 0; state->lencode = state->distcode = state->next = state->codes; Tracev((stderr, "inflate: reset\n")); return Z_OK; } int ZEXPORT inflatePrime(strm, bits, value) z_streamp strm; int bits; int value; { struct inflate_state FAR *state; if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; if (bits > 16 || state->bits + bits > 32) return Z_STREAM_ERROR; value &= (1L << bits) - 1; state->hold += value << state->bits; state->bits += bits; return Z_OK; } int ZEXPORT inflateInit2_(strm, windowBits, version, stream_size) z_streamp strm; int windowBits; const char *version; int stream_size; { struct inflate_state FAR *state; if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || stream_size != (int)(sizeof(z_stream))) return Z_VERSION_ERROR; if (strm == Z_NULL) return Z_STREAM_ERROR; strm->msg = Z_NULL; /* in case we return an error */ if (strm->zalloc == (alloc_func)0) { strm->zalloc = zcalloc; strm->opaque = (voidpf)0; } if (strm->zfree == (free_func)0) strm->zfree = zcfree; state = (struct inflate_state FAR *) ZALLOC(strm, 1, sizeof(struct inflate_state)); if (state == Z_NULL) return Z_MEM_ERROR; Tracev((stderr, "inflate: allocated\n")); strm->state = (struct internal_state FAR *)state; if (windowBits < 0) { state->wrap = 0; windowBits = -windowBits; } else { state->wrap = (windowBits >> 4) + 1; #ifdef GUNZIP if (windowBits < 48) windowBits &= 15; #endif } if (windowBits < 8 || windowBits > 15) { ZFREE(strm, state); strm->state = Z_NULL; return Z_STREAM_ERROR; } state->wbits = (unsigned)windowBits; state->window = Z_NULL; return inflateReset(strm); } int ZEXPORT inflateInit_(strm, version, stream_size) z_streamp strm; const char *version; int stream_size; { return inflateInit2_(strm, DEF_WBITS, version, stream_size); } /* Return state with length and distance decoding tables and index sizes set to fixed code decoding. Normally this returns fixed tables from inffixed.h. If BUILDFIXED is defined, then instead this routine builds the tables the first time it's called, and returns those tables the first time and thereafter. This reduces the size of the code by about 2K bytes, in exchange for a little execution time. However, BUILDFIXED should not be used for threaded applications, since the rewriting of the tables and virgin may not be thread-safe. */ local void fixedtables(state) struct inflate_state FAR *state; { #ifdef BUILDFIXED static int virgin = 1; static code *lenfix, *distfix; static code fixed[544]; /* build fixed huffman tables if first call (may not be thread safe) */ if (virgin) { unsigned sym, bits; static code *next; /* literal/length table */ sym = 0; while (sym < 144) state->lens[sym++] = 8; while (sym < 256) state->lens[sym++] = 9; while (sym < 280) state->lens[sym++] = 7; while (sym < 288) state->lens[sym++] = 8; next = fixed; lenfix = next; bits = 9; inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work); /* distance table */ sym = 0; while (sym < 32) state->lens[sym++] = 5; distfix = next; bits = 5; inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work); /* do this just once */ virgin = 0; } #else /* !BUILDFIXED */ # include "inffixed.h" #endif /* BUILDFIXED */ state->lencode = lenfix; state->lenbits = 9; state->distcode = distfix; state->distbits = 5; } #ifdef MAKEFIXED #include /* Write out the inffixed.h that is #include'd above. Defining MAKEFIXED also defines BUILDFIXED, so the tables are built on the fly. makefixed() writes those tables to stdout, which would be piped to inffixed.h. A small program can simply call makefixed to do this: void makefixed(void); int main(void) { makefixed(); return 0; } Then that can be linked with zlib built with MAKEFIXED defined and run: a.out > inffixed.h */ void makefixed() { unsigned low, size; struct inflate_state state; fixedtables(&state); puts(" /* inffixed.h -- table for decoding fixed codes"); puts(" * Generated automatically by makefixed()."); puts(" */"); puts(""); puts(" /* WARNING: this file should *not* be used by applications."); puts(" It is part of the implementation of this library and is"); puts(" subject to change. Applications should only use zlib.h."); puts(" */"); puts(""); size = 1U << 9; printf(" static const code lenfix[%u] = {", size); low = 0; for (;;) { if ((low % 7) == 0) printf("\n "); printf("{%u,%u,%d}", state.lencode[low].op, state.lencode[low].bits, state.lencode[low].val); if (++low == size) break; putchar(','); } puts("\n };"); size = 1U << 5; printf("\n static const code distfix[%u] = {", size); low = 0; for (;;) { if ((low % 6) == 0) printf("\n "); printf("{%u,%u,%d}", state.distcode[low].op, state.distcode[low].bits, state.distcode[low].val); if (++low == size) break; putchar(','); } puts("\n };"); } #endif /* MAKEFIXED */ /* Update the window with the last wsize (normally 32K) bytes written before returning. If window does not exist yet, create it. This is only called when a window is already in use, or when output has been written during this inflate call, but the end of the deflate stream has not been reached yet. It is also called to create a window for dictionary data when a dictionary is loaded. Providing output buffers larger than 32K to inflate() should provide a speed advantage, since only the last 32K of output is copied to the sliding window upon return from inflate(), and since all distances after the first 32K of output will fall in the output data, making match copies simpler and faster. The advantage may be dependent on the size of the processor's data caches. */ local int updatewindow(strm, out) z_streamp strm; unsigned out; { struct inflate_state FAR *state; unsigned copy, dist; state = (struct inflate_state FAR *)strm->state; /* if it hasn't been done already, allocate space for the window */ if (state->window == Z_NULL) { state->window = (unsigned char FAR *) ZALLOC(strm, 1U << state->wbits, sizeof(unsigned char)); if (state->window == Z_NULL) return 1; } /* if window not in use yet, initialize */ if (state->wsize == 0) { state->wsize = 1U << state->wbits; state->write = 0; state->whave = 0; } /* copy state->wsize or less output bytes into the circular window */ copy = out - strm->avail_out; if (copy >= state->wsize) { zmemcpy(state->window, strm->next_out - state->wsize, state->wsize); state->write = 0; state->whave = state->wsize; } else { dist = state->wsize - state->write; if (dist > copy) dist = copy; zmemcpy(state->window + state->write, strm->next_out - copy, dist); copy -= dist; if (copy) { zmemcpy(state->window, strm->next_out - copy, copy); state->write = copy; state->whave = state->wsize; } else { state->write += dist; if (state->write == state->wsize) state->write = 0; if (state->whave < state->wsize) state->whave += dist; } } return 0; } /* Macros for inflate(): */ /* check function to use adler32() for zlib or crc32() for gzip */ #ifdef GUNZIP # define UPDATE(check, buf, len) \ (state->flags ? crc32(check, buf, len) : adler32(check, buf, len)) #else # define UPDATE(check, buf, len) adler32(check, buf, len) #endif /* check macros for header crc */ #ifdef GUNZIP # define CRC2(check, word) \ do { \ hbuf[0] = (unsigned char)(word); \ hbuf[1] = (unsigned char)((word) >> 8); \ check = crc32(check, hbuf, 2); \ } while (0) # define CRC4(check, word) \ do { \ hbuf[0] = (unsigned char)(word); \ hbuf[1] = (unsigned char)((word) >> 8); \ hbuf[2] = (unsigned char)((word) >> 16); \ hbuf[3] = (unsigned char)((word) >> 24); \ check = crc32(check, hbuf, 4); \ } while (0) #endif /* Load registers with state in inflate() for speed */ #define LOAD() \ do { \ put = strm->next_out; \ left = strm->avail_out; \ next = strm->next_in; \ have = strm->avail_in; \ hold = state->hold; \ bits = state->bits; \ } while (0) /* Restore state from registers in inflate() */ #define RESTORE() \ do { \ strm->next_out = put; \ strm->avail_out = left; \ strm->next_in = next; \ strm->avail_in = have; \ state->hold = hold; \ state->bits = bits; \ } while (0) /* Clear the input bit accumulator */ #define INITBITS() \ do { \ hold = 0; \ bits = 0; \ } while (0) /* Get a byte of input into the bit accumulator, or return from inflate() if there is no input available. */ #define PULLBYTE() \ do { \ if (have == 0) goto inf_leave; \ have--; \ hold += (unsigned long)(*next++) << bits; \ bits += 8; \ } while (0) /* Assure that there are at least n bits in the bit accumulator. If there is not enough available input to do that, then return from inflate(). */ #define NEEDBITS(n) \ do { \ while (bits < (unsigned)(n)) \ PULLBYTE(); \ } while (0) /* Return the low n bits of the bit accumulator (n < 16) */ #define BITS(n) \ ((unsigned)hold & ((1U << (n)) - 1)) /* Remove n bits from the bit accumulator */ #define DROPBITS(n) \ do { \ hold >>= (n); \ bits -= (unsigned)(n); \ } while (0) /* Remove zero to seven bits as needed to go to a byte boundary */ #define BYTEBITS() \ do { \ hold >>= bits & 7; \ bits -= bits & 7; \ } while (0) /* Reverse the bytes in a 32-bit value */ #define REVERSE(q) \ ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \ (((q) & 0xff00) << 8) + (((q) & 0xff) << 24)) /* inflate() uses a state machine to process as much input data and generate as much output data as possible before returning. The state machine is structured roughly as follows: for (;;) switch (state) { ... case STATEn: if (not enough input data or output space to make progress) return; ... make progress ... state = STATEm; break; ... } so when inflate() is called again, the same case is attempted again, and if the appropriate resources are provided, the machine proceeds to the next state. The NEEDBITS() macro is usually the way the state evaluates whether it can proceed or should return. NEEDBITS() does the return if the requested bits are not available. The typical use of the BITS macros is: NEEDBITS(n); ... do something with BITS(n) ... DROPBITS(n); where NEEDBITS(n) either returns from inflate() if there isn't enough input left to load n bits into the accumulator, or it continues. BITS(n) gives the low n bits in the accumulator. When done, DROPBITS(n) drops the low n bits off the accumulator. INITBITS() clears the accumulator and sets the number of available bits to zero. BYTEBITS() discards just enough bits to put the accumulator on a byte boundary. After BYTEBITS() and a NEEDBITS(8), then BITS(8) would return the next byte in the stream. NEEDBITS(n) uses PULLBYTE() to get an available byte of input, or to return if there is no input available. The decoding of variable length codes uses PULLBYTE() directly in order to pull just enough bytes to decode the next code, and no more. Some states loop until they get enough input, making sure that enough state information is maintained to continue the loop where it left off if NEEDBITS() returns in the loop. For example, want, need, and keep would all have to actually be part of the saved state in case NEEDBITS() returns: case STATEw: while (want < need) { NEEDBITS(n); keep[want++] = BITS(n); DROPBITS(n); } state = STATEx; case STATEx: As shown above, if the next state is also the next case, then the break is omitted. A state may also return if there is not enough output space available to complete that state. Those states are copying stored data, writing a literal byte, and copying a matching string. When returning, a "goto inf_leave" is used to update the total counters, update the check value, and determine whether any progress has been made during that inflate() call in order to return the proper return code. Progress is defined as a change in either strm->avail_in or strm->avail_out. When there is a window, goto inf_leave will update the window with the last output written. If a goto inf_leave occurs in the middle of decompression and there is no window currently, goto inf_leave will create one and copy output to the window for the next call of inflate(). In this implementation, the flush parameter of inflate() only affects the return code (per zlib.h). inflate() always writes as much as possible to strm->next_out, given the space available and the provided input--the effect documented in zlib.h of Z_SYNC_FLUSH. Furthermore, inflate() always defers the allocation of and copying into a sliding window until necessary, which provides the effect documented in zlib.h for Z_FINISH when the entire input stream available. So the only thing the flush parameter actually does is: when flush is set to Z_FINISH, inflate() cannot return Z_OK. Instead it will return Z_BUF_ERROR if it has not reached the end of the stream. */ int ZEXPORT inflate(strm, flush) z_streamp strm; int flush; { struct inflate_state FAR *state; unsigned char FAR *next; /* next input */ unsigned char FAR *put; /* next output */ unsigned have, left; /* available input and output */ unsigned long hold; /* bit buffer */ unsigned bits; /* bits in bit buffer */ unsigned in, out; /* save starting available input and output */ unsigned copy; /* number of stored or match bytes to copy */ unsigned char FAR *from; /* where to copy match bytes from */ code this; /* current decoding table entry */ code last; /* parent table entry */ unsigned len; /* length to copy for repeats, bits to drop */ int ret; /* return code */ #ifdef GUNZIP unsigned char hbuf[4]; /* buffer for gzip header crc calculation */ #endif static const unsigned short order[19] = /* permutation of code lengths */ {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; if (strm == Z_NULL || strm->state == Z_NULL || strm->next_out == Z_NULL || (strm->next_in == Z_NULL && strm->avail_in != 0)) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; if (state->mode == TYPE) state->mode = TYPEDO; /* skip check */ LOAD(); in = have; out = left; ret = Z_OK; for (;;) switch (state->mode) { case HEAD: if (state->wrap == 0) { state->mode = TYPEDO; break; } NEEDBITS(16); #ifdef GUNZIP if ((state->wrap & 2) && hold == 0x8b1f) { /* gzip header */ state->check = crc32(0L, Z_NULL, 0); CRC2(state->check, hold); INITBITS(); state->mode = FLAGS; break; } state->flags = 0; /* expect zlib header */ if (state->head != Z_NULL) state->head->done = -1; if (!(state->wrap & 1) || /* check if zlib header allowed */ #else if ( #endif ((BITS(8) << 8) + (hold >> 8)) % 31) { strm->msg = (char *)"incorrect header check"; state->mode = BAD; break; } if (BITS(4) != Z_DEFLATED) { strm->msg = (char *)"unknown compression method"; state->mode = BAD; break; } DROPBITS(4); len = BITS(4) + 8; if (len > state->wbits) { strm->msg = (char *)"invalid window size"; state->mode = BAD; break; } state->dmax = 1U << len; Tracev((stderr, "inflate: zlib header ok\n")); strm->adler = state->check = adler32(0L, Z_NULL, 0); state->mode = hold & 0x200 ? DICTID : TYPE; INITBITS(); break; #ifdef GUNZIP case FLAGS: NEEDBITS(16); state->flags = (int)(hold); if ((state->flags & 0xff) != Z_DEFLATED) { strm->msg = (char *)"unknown compression method"; state->mode = BAD; break; } if (state->flags & 0xe000) { strm->msg = (char *)"unknown header flags set"; state->mode = BAD; break; } if (state->head != Z_NULL) state->head->text = (int)((hold >> 8) & 1); if (state->flags & 0x0200) CRC2(state->check, hold); INITBITS(); state->mode = TIME; case TIME: NEEDBITS(32); if (state->head != Z_NULL) state->head->time = hold; if (state->flags & 0x0200) CRC4(state->check, hold); INITBITS(); state->mode = OS; case OS: NEEDBITS(16); if (state->head != Z_NULL) { state->head->xflags = (int)(hold & 0xff); state->head->os = (int)(hold >> 8); } if (state->flags & 0x0200) CRC2(state->check, hold); INITBITS(); state->mode = EXLEN; case EXLEN: if (state->flags & 0x0400) { NEEDBITS(16); state->length = (unsigned)(hold); if (state->head != Z_NULL) state->head->extra_len = (unsigned)hold; if (state->flags & 0x0200) CRC2(state->check, hold); INITBITS(); } else if (state->head != Z_NULL) state->head->extra = Z_NULL; state->mode = EXTRA; case EXTRA: if (state->flags & 0x0400) { copy = state->length; if (copy > have) copy = have; if (copy) { if (state->head != Z_NULL && state->head->extra != Z_NULL) { len = state->head->extra_len - state->length; zmemcpy(state->head->extra + len, next, len + copy > state->head->extra_max ? state->head->extra_max - len : copy); } if (state->flags & 0x0200) state->check = crc32(state->check, next, copy); have -= copy; next += copy; state->length -= copy; } if (state->length) goto inf_leave; } state->length = 0; state->mode = NAME; case NAME: if (state->flags & 0x0800) { if (have == 0) goto inf_leave; copy = 0; do { len = (unsigned)(next[copy++]); if (state->head != Z_NULL && state->head->name != Z_NULL && state->length < state->head->name_max) state->head->name[state->length++] = len; } while (len && copy < have); if (state->flags & 0x0200) state->check = crc32(state->check, next, copy); have -= copy; next += copy; if (len) goto inf_leave; } else if (state->head != Z_NULL) state->head->name = Z_NULL; state->length = 0; state->mode = COMMENT; case COMMENT: if (state->flags & 0x1000) { if (have == 0) goto inf_leave; copy = 0; do { len = (unsigned)(next[copy++]); if (state->head != Z_NULL && state->head->comment != Z_NULL && state->length < state->head->comm_max) state->head->comment[state->length++] = len; } while (len && copy < have); if (state->flags & 0x0200) state->check = crc32(state->check, next, copy); have -= copy; next += copy; if (len) goto inf_leave; } else if (state->head != Z_NULL) state->head->comment = Z_NULL; state->mode = HCRC; case HCRC: if (state->flags & 0x0200) { NEEDBITS(16); if (hold != (state->check & 0xffff)) { strm->msg = (char *)"header crc mismatch"; state->mode = BAD; break; } INITBITS(); } if (state->head != Z_NULL) { state->head->hcrc = (int)((state->flags >> 9) & 1); state->head->done = 1; } strm->adler = state->check = crc32(0L, Z_NULL, 0); state->mode = TYPE; break; #endif case DICTID: NEEDBITS(32); strm->adler = state->check = REVERSE(hold); INITBITS(); state->mode = DICT; case DICT: if (state->havedict == 0) { RESTORE(); return Z_NEED_DICT; } strm->adler = state->check = adler32(0L, Z_NULL, 0); state->mode = TYPE; case TYPE: if (flush == Z_BLOCK) goto inf_leave; case TYPEDO: if (state->last) { BYTEBITS(); state->mode = CHECK; break; } NEEDBITS(3); state->last = BITS(1); DROPBITS(1); switch (BITS(2)) { case 0: /* stored block */ Tracev((stderr, "inflate: stored block%s\n", state->last ? " (last)" : "")); state->mode = STORED; break; case 1: /* fixed block */ fixedtables(state); Tracev((stderr, "inflate: fixed codes block%s\n", state->last ? " (last)" : "")); state->mode = LEN; /* decode codes */ break; case 2: /* dynamic block */ Tracev((stderr, "inflate: dynamic codes block%s\n", state->last ? " (last)" : "")); state->mode = TABLE; break; case 3: strm->msg = (char *)"invalid block type"; state->mode = BAD; } DROPBITS(2); break; case STORED: BYTEBITS(); /* go to byte boundary */ NEEDBITS(32); if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) { strm->msg = (char *)"invalid stored block lengths"; state->mode = BAD; break; } state->length = (unsigned)hold & 0xffff; Tracev((stderr, "inflate: stored length %u\n", state->length)); INITBITS(); state->mode = COPY; case COPY: copy = state->length; if (copy) { if (copy > have) copy = have; if (copy > left) copy = left; if (copy == 0) goto inf_leave; zmemcpy(put, next, copy); have -= copy; next += copy; left -= copy; put += copy; state->length -= copy; break; } Tracev((stderr, "inflate: stored end\n")); state->mode = TYPE; break; case TABLE: NEEDBITS(14); state->nlen = BITS(5) + 257; DROPBITS(5); state->ndist = BITS(5) + 1; DROPBITS(5); state->ncode = BITS(4) + 4; DROPBITS(4); #ifndef PKZIP_BUG_WORKAROUND if (state->nlen > 286 || state->ndist > 30) { strm->msg = (char *)"too many length or distance symbols"; state->mode = BAD; break; } #endif Tracev((stderr, "inflate: table sizes ok\n")); state->have = 0; state->mode = LENLENS; case LENLENS: while (state->have < state->ncode) { NEEDBITS(3); state->lens[order[state->have++]] = (unsigned short)BITS(3); DROPBITS(3); } while (state->have < 19) state->lens[order[state->have++]] = 0; state->next = state->codes; state->lencode = (code const FAR *)(state->next); state->lenbits = 7; ret = inflate_table(CODES, state->lens, 19, &(state->next), &(state->lenbits), state->work); if (ret) { strm->msg = (char *)"invalid code lengths set"; state->mode = BAD; break; } Tracev((stderr, "inflate: code lengths ok\n")); state->have = 0; state->mode = CODELENS; case CODELENS: while (state->have < state->nlen + state->ndist) { for (;;) { this = state->lencode[BITS(state->lenbits)]; if ((unsigned)(this.bits) <= bits) break; PULLBYTE(); } if (this.val < 16) { NEEDBITS(this.bits); DROPBITS(this.bits); state->lens[state->have++] = this.val; } else { if (this.val == 16) { NEEDBITS(this.bits + 2); DROPBITS(this.bits); if (state->have == 0) { strm->msg = (char *)"invalid bit length repeat"; state->mode = BAD; break; } len = state->lens[state->have - 1]; copy = 3 + BITS(2); DROPBITS(2); } else if (this.val == 17) { NEEDBITS(this.bits + 3); DROPBITS(this.bits); len = 0; copy = 3 + BITS(3); DROPBITS(3); } else { NEEDBITS(this.bits + 7); DROPBITS(this.bits); len = 0; copy = 11 + BITS(7); DROPBITS(7); } if (state->have + copy > state->nlen + state->ndist) { strm->msg = (char *)"invalid bit length repeat"; state->mode = BAD; break; } while (copy--) state->lens[state->have++] = (unsigned short)len; } } /* handle error breaks in while */ if (state->mode == BAD) break; /* build code tables */ state->next = state->codes; state->lencode = (code const FAR *)(state->next); state->lenbits = 9; ret = inflate_table(LENS, state->lens, state->nlen, &(state->next), &(state->lenbits), state->work); if (ret) { strm->msg = (char *)"invalid literal/lengths set"; state->mode = BAD; break; } state->distcode = (code const FAR *)(state->next); state->distbits = 6; ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist, &(state->next), &(state->distbits), state->work); if (ret) { strm->msg = (char *)"invalid distances set"; state->mode = BAD; break; } Tracev((stderr, "inflate: codes ok\n")); state->mode = LEN; case LEN: if (have >= 6 && left >= 258) { RESTORE(); inflate_fast(strm, out); LOAD(); break; } for (;;) { this = state->lencode[BITS(state->lenbits)]; if ((unsigned)(this.bits) <= bits) break; PULLBYTE(); } if (this.op && (this.op & 0xf0) == 0) { last = this; for (;;) { this = state->lencode[last.val + (BITS(last.bits + last.op) >> last.bits)]; if ((unsigned)(last.bits + this.bits) <= bits) break; PULLBYTE(); } DROPBITS(last.bits); } DROPBITS(this.bits); state->length = (unsigned)this.val; if ((int)(this.op) == 0) { Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ? "inflate: literal '%c'\n" : "inflate: literal 0x%02x\n", this.val)); state->mode = LIT; break; } if (this.op & 32) { Tracevv((stderr, "inflate: end of block\n")); state->mode = TYPE; break; } if (this.op & 64) { strm->msg = (char *)"invalid literal/length code"; state->mode = BAD; break; } state->extra = (unsigned)(this.op) & 15; state->mode = LENEXT; case LENEXT: if (state->extra) { NEEDBITS(state->extra); state->length += BITS(state->extra); DROPBITS(state->extra); } Tracevv((stderr, "inflate: length %u\n", state->length)); state->mode = DIST; case DIST: for (;;) { this = state->distcode[BITS(state->distbits)]; if ((unsigned)(this.bits) <= bits) break; PULLBYTE(); } if ((this.op & 0xf0) == 0) { last = this; for (;;) { this = state->distcode[last.val + (BITS(last.bits + last.op) >> last.bits)]; if ((unsigned)(last.bits + this.bits) <= bits) break; PULLBYTE(); } DROPBITS(last.bits); } DROPBITS(this.bits); if (this.op & 64) { strm->msg = (char *)"invalid distance code"; state->mode = BAD; break; } state->offset = (unsigned)this.val; state->extra = (unsigned)(this.op) & 15; state->mode = DISTEXT; case DISTEXT: if (state->extra) { NEEDBITS(state->extra); state->offset += BITS(state->extra); DROPBITS(state->extra); } #ifdef INFLATE_STRICT if (state->offset > state->dmax) { strm->msg = (char *)"invalid distance too far back"; state->mode = BAD; break; } #endif if (state->offset > state->whave + out - left) { strm->msg = (char *)"invalid distance too far back"; state->mode = BAD; break; } Tracevv((stderr, "inflate: distance %u\n", state->offset)); state->mode = MATCH; case MATCH: if (left == 0) goto inf_leave; copy = out - left; if (state->offset > copy) { /* copy from window */ copy = state->offset - copy; if (copy > state->write) { copy -= state->write; from = state->window + (state->wsize - copy); } else from = state->window + (state->write - copy); if (copy > state->length) copy = state->length; } else { /* copy from output */ from = put - state->offset; copy = state->length; } if (copy > left) copy = left; left -= copy; state->length -= copy; do { *put++ = *from++; } while (--copy); if (state->length == 0) state->mode = LEN; break; case LIT: if (left == 0) goto inf_leave; *put++ = (unsigned char)(state->length); left--; state->mode = LEN; break; case CHECK: if (state->wrap) { NEEDBITS(32); out -= left; strm->total_out += out; state->total += out; if (out) strm->adler = state->check = UPDATE(state->check, put - out, out); out = left; if (( #ifdef GUNZIP state->flags ? hold : #endif REVERSE(hold)) != state->check) { strm->msg = (char *)"incorrect data check"; state->mode = BAD; break; } INITBITS(); Tracev((stderr, "inflate: check matches trailer\n")); } #ifdef GUNZIP state->mode = LENGTH; case LENGTH: if (state->wrap && state->flags) { NEEDBITS(32); if (hold != (state->total & 0xffffffffUL)) { strm->msg = (char *)"incorrect length check"; state->mode = BAD; break; } INITBITS(); Tracev((stderr, "inflate: length matches trailer\n")); } #endif state->mode = DONE; case DONE: ret = Z_STREAM_END; goto inf_leave; case BAD: ret = Z_DATA_ERROR; goto inf_leave; case MEM: return Z_MEM_ERROR; case SYNC: default: return Z_STREAM_ERROR; } /* Return from inflate(), updating the total counts and the check value. If there was no progress during the inflate() call, return a buffer error. Call updatewindow() to create and/or update the window state. Note: a memory error from inflate() is non-recoverable. */ inf_leave: RESTORE(); if (state->wsize || (state->mode < CHECK && out != strm->avail_out)) if (updatewindow(strm, out)) { state->mode = MEM; return Z_MEM_ERROR; } in -= strm->avail_in; out -= strm->avail_out; strm->total_in += in; strm->total_out += out; state->total += out; if (state->wrap && out) strm->adler = state->check = UPDATE(state->check, strm->next_out - out, out); strm->data_type = state->bits + (state->last ? 64 : 0) + (state->mode == TYPE ? 128 : 0); if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK) ret = Z_BUF_ERROR; return ret; } int ZEXPORT inflateEnd(strm) z_streamp strm; { struct inflate_state FAR *state; if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; if (state->window != Z_NULL) ZFREE(strm, state->window); ZFREE(strm, strm->state); strm->state = Z_NULL; Tracev((stderr, "inflate: end\n")); return Z_OK; } int ZEXPORT inflateSetDictionary(strm, dictionary, dictLength) z_streamp strm; const Bytef *dictionary; uInt dictLength; { struct inflate_state FAR *state; unsigned long id; /* check state */ if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; if (state->wrap != 0 && state->mode != DICT) return Z_STREAM_ERROR; /* check for correct dictionary id */ if (state->mode == DICT) { id = adler32(0L, Z_NULL, 0); id = adler32(id, dictionary, dictLength); if (id != state->check) return Z_DATA_ERROR; } /* copy dictionary to window */ if (updatewindow(strm, strm->avail_out)) { state->mode = MEM; return Z_MEM_ERROR; } if (dictLength > state->wsize) { zmemcpy(state->window, dictionary + dictLength - state->wsize, state->wsize); state->whave = state->wsize; } else { zmemcpy(state->window + state->wsize - dictLength, dictionary, dictLength); state->whave = dictLength; } state->havedict = 1; Tracev((stderr, "inflate: dictionary set\n")); return Z_OK; } int ZEXPORT inflateGetHeader(strm, head) z_streamp strm; gz_headerp head; { struct inflate_state FAR *state; /* check state */ if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; if ((state->wrap & 2) == 0) return Z_STREAM_ERROR; /* save header structure */ state->head = head; head->done = 0; return Z_OK; } /* Search buf[0..len-1] for the pattern: 0, 0, 0xff, 0xff. Return when found or when out of input. When called, *have is the number of pattern bytes found in order so far, in 0..3. On return *have is updated to the new state. If on return *have equals four, then the pattern was found and the return value is how many bytes were read including the last byte of the pattern. If *have is less than four, then the pattern has not been found yet and the return value is len. In the latter case, syncsearch() can be called again with more data and the *have state. *have is initialized to zero for the first call. */ local unsigned syncsearch(have, buf, len) unsigned FAR *have; unsigned char FAR *buf; unsigned len; { unsigned got; unsigned next; got = *have; next = 0; while (next < len && got < 4) { if ((int)(buf[next]) == (got < 2 ? 0 : 0xff)) got++; else if (buf[next]) got = 0; else got = 4 - got; next++; } *have = got; return next; } int ZEXPORT inflateSync(strm) z_streamp strm; { unsigned len; /* number of bytes to look at or looked at */ unsigned long in, out; /* temporary to save total_in and total_out */ unsigned char buf[4]; /* to restore bit buffer to byte string */ struct inflate_state FAR *state; /* check parameters */ if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; if (strm->avail_in == 0 && state->bits < 8) return Z_BUF_ERROR; /* if first time, start search in bit buffer */ if (state->mode != SYNC) { state->mode = SYNC; state->hold <<= state->bits & 7; state->bits -= state->bits & 7; len = 0; while (state->bits >= 8) { buf[len++] = (unsigned char)(state->hold); state->hold >>= 8; state->bits -= 8; } state->have = 0; syncsearch(&(state->have), buf, len); } /* search available input */ len = syncsearch(&(state->have), strm->next_in, strm->avail_in); strm->avail_in -= len; strm->next_in += len; strm->total_in += len; /* return no joy or set up to restart inflate() on a new block */ if (state->have != 4) return Z_DATA_ERROR; in = strm->total_in; out = strm->total_out; inflateReset(strm); strm->total_in = in; strm->total_out = out; state->mode = TYPE; return Z_OK; } /* Returns true if inflate is currently at the end of a block generated by Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP implementation to provide an additional safety check. PPP uses Z_SYNC_FLUSH but removes the length bytes of the resulting empty stored block. When decompressing, PPP checks that at the end of input packet, inflate is waiting for these length bytes. */ int ZEXPORT inflateSyncPoint(strm) z_streamp strm; { struct inflate_state FAR *state; if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; return state->mode == STORED && state->bits == 0; } int ZEXPORT inflateCopy(dest, source) z_streamp dest; z_streamp source; { struct inflate_state FAR *state; struct inflate_state FAR *copy; unsigned char FAR *window; unsigned wsize; /* check input */ if (dest == Z_NULL || source == Z_NULL || source->state == Z_NULL || source->zalloc == (alloc_func)0 || source->zfree == (free_func)0) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)source->state; /* allocate space */ copy = (struct inflate_state FAR *) ZALLOC(source, 1, sizeof(struct inflate_state)); if (copy == Z_NULL) return Z_MEM_ERROR; window = Z_NULL; if (state->window != Z_NULL) { window = (unsigned char FAR *) ZALLOC(source, 1U << state->wbits, sizeof(unsigned char)); if (window == Z_NULL) { ZFREE(source, copy); return Z_MEM_ERROR; } } /* copy state */ zmemcpy(dest, source, sizeof(z_stream)); zmemcpy(copy, state, sizeof(struct inflate_state)); if (state->lencode >= state->codes && state->lencode <= state->codes + ENOUGH - 1) { copy->lencode = copy->codes + (state->lencode - state->codes); copy->distcode = copy->codes + (state->distcode - state->codes); } copy->next = copy->codes + (state->next - state->codes); if (window != Z_NULL) { wsize = 1U << state->wbits; zmemcpy(window, state->window, wsize); } copy->window = window; dest->state = (struct internal_state FAR *)copy; return Z_OK; } unalz/zlib/inflate.h00007000001040€ÿÿÿÿ0000001361710404306311017216 0ustar Administrators????????/* inflate.h -- internal inflate state definition * Copyright (C) 1995-2004 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ /* WARNING: this file should *not* be used by applications. It is part of the implementation of the compression library and is subject to change. Applications should only use zlib.h. */ /* define NO_GZIP when compiling if you want to disable gzip header and trailer decoding by inflate(). NO_GZIP would be used to avoid linking in the crc code when it is not needed. For shared libraries, gzip decoding should be left enabled. */ #ifndef NO_GZIP # define GUNZIP #endif /* Possible inflate modes between inflate() calls */ typedef enum { HEAD, /* i: waiting for magic header */ FLAGS, /* i: waiting for method and flags (gzip) */ TIME, /* i: waiting for modification time (gzip) */ OS, /* i: waiting for extra flags and operating system (gzip) */ EXLEN, /* i: waiting for extra length (gzip) */ EXTRA, /* i: waiting for extra bytes (gzip) */ NAME, /* i: waiting for end of file name (gzip) */ COMMENT, /* i: waiting for end of comment (gzip) */ HCRC, /* i: waiting for header crc (gzip) */ DICTID, /* i: waiting for dictionary check value */ DICT, /* waiting for inflateSetDictionary() call */ TYPE, /* i: waiting for type bits, including last-flag bit */ TYPEDO, /* i: same, but skip check to exit inflate on new block */ STORED, /* i: waiting for stored size (length and complement) */ COPY, /* i/o: waiting for input or output to copy stored block */ TABLE, /* i: waiting for dynamic block table lengths */ LENLENS, /* i: waiting for code length code lengths */ CODELENS, /* i: waiting for length/lit and distance code lengths */ LEN, /* i: waiting for length/lit code */ LENEXT, /* i: waiting for length extra bits */ DIST, /* i: waiting for distance code */ DISTEXT, /* i: waiting for distance extra bits */ MATCH, /* o: waiting for output space to copy string */ LIT, /* o: waiting for output space to write literal */ CHECK, /* i: waiting for 32-bit check value */ LENGTH, /* i: waiting for 32-bit length (gzip) */ DONE, /* finished check, done -- remain here until reset */ BAD, /* got a data error -- remain here until reset */ MEM, /* got an inflate() memory error -- remain here until reset */ SYNC /* looking for synchronization bytes to restart inflate() */ } inflate_mode; /* State transitions between above modes - (most modes can go to the BAD or MEM mode -- not shown for clarity) Process header: HEAD -> (gzip) or (zlib) (gzip) -> FLAGS -> TIME -> OS -> EXLEN -> EXTRA -> NAME NAME -> COMMENT -> HCRC -> TYPE (zlib) -> DICTID or TYPE DICTID -> DICT -> TYPE Read deflate blocks: TYPE -> STORED or TABLE or LEN or CHECK STORED -> COPY -> TYPE TABLE -> LENLENS -> CODELENS -> LEN Read deflate codes: LEN -> LENEXT or LIT or TYPE LENEXT -> DIST -> DISTEXT -> MATCH -> LEN LIT -> LEN Process trailer: CHECK -> LENGTH -> DONE */ /* state maintained between inflate() calls. Approximately 7K bytes. */ struct inflate_state { inflate_mode mode; /* current inflate mode */ int last; /* true if processing last block */ int wrap; /* bit 0 true for zlib, bit 1 true for gzip */ int havedict; /* true if dictionary provided */ int flags; /* gzip header method and flags (0 if zlib) */ unsigned dmax; /* zlib header max distance (INFLATE_STRICT) */ unsigned long check; /* protected copy of check value */ unsigned long total; /* protected copy of output count */ gz_headerp head; /* where to save gzip header information */ /* sliding window */ unsigned wbits; /* log base 2 of requested window size */ unsigned wsize; /* window size or zero if not using window */ unsigned whave; /* valid bytes in the window */ unsigned write; /* window write index */ unsigned char FAR *window; /* allocated sliding window, if needed */ /* bit accumulator */ unsigned long hold; /* input bit accumulator */ unsigned bits; /* number of bits in "in" */ /* for string and stored block copying */ unsigned length; /* literal or length of data to copy */ unsigned offset; /* distance back to copy string from */ /* for table and code decoding */ unsigned extra; /* extra bits needed */ /* fixed and dynamic code tables */ code const FAR *lencode; /* starting table for length/literal codes */ code const FAR *distcode; /* starting table for distance codes */ unsigned lenbits; /* index bits for lencode */ unsigned distbits; /* index bits for distcode */ /* dynamic table building */ unsigned ncode; /* number of code length code lengths */ unsigned nlen; /* number of length code lengths */ unsigned ndist; /* number of distance code lengths */ unsigned have; /* number of code lengths in lens[] */ code FAR *next; /* next available space in codes[] */ unsigned short lens[320]; /* temporary storage for code lengths */ unsigned short work[288]; /* work area for code table building */ code codes[ENOUGH]; /* space for code tables */ }; unalz/zlib/inftrees.c00007000001040€ÿÿÿÿ0000003340510404306311017403 0ustar Administrators????????/* inftrees.c -- generate Huffman trees for efficient decoding * Copyright (C) 1995-2005 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ #include "zutil.h" #include "inftrees.h" #define MAXBITS 15 const char inflate_copyright[] = " inflate 1.2.3 Copyright 1995-2005 Mark Adler "; /* If you use the zlib library in a product, an acknowledgment is welcome in the documentation of your product. If for some reason you cannot include such an acknowledgment, I would appreciate that you keep this copyright string in the executable of your product. */ /* Build a set of tables to decode the provided canonical Huffman code. The code lengths are lens[0..codes-1]. The result starts at *table, whose indices are 0..2^bits-1. work is a writable array of at least lens shorts, which is used as a work area. type is the type of code to be generated, CODES, LENS, or DISTS. On return, zero is success, -1 is an invalid code, and +1 means that ENOUGH isn't enough. table on return points to the next available entry's address. bits is the requested root table index bits, and on return it is the actual root table index bits. It will differ if the request is greater than the longest code or if it is less than the shortest code. */ int inflate_table(type, lens, codes, table, bits, work) codetype type; unsigned short FAR *lens; unsigned codes; code FAR * FAR *table; unsigned FAR *bits; unsigned short FAR *work; { unsigned len; /* a code's length in bits */ unsigned sym; /* index of code symbols */ unsigned min, max; /* minimum and maximum code lengths */ unsigned root; /* number of index bits for root table */ unsigned curr; /* number of index bits for current table */ unsigned drop; /* code bits to drop for sub-table */ int left; /* number of prefix codes available */ unsigned used; /* code entries in table used */ unsigned huff; /* Huffman code */ unsigned incr; /* for incrementing code, index */ unsigned fill; /* index for replicating entries */ unsigned low; /* low bits for current root entry */ unsigned mask; /* mask for low root bits */ code this; /* table entry for duplication */ code FAR *next; /* next available space in table */ const unsigned short FAR *base; /* base value table to use */ const unsigned short FAR *extra; /* extra bits table to use */ int end; /* use base and extra for symbol > end */ unsigned short count[MAXBITS+1]; /* number of codes of each length */ unsigned short offs[MAXBITS+1]; /* offsets in table for each length */ static const unsigned short lbase[31] = { /* Length codes 257..285 base */ 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; static const unsigned short lext[31] = { /* Length codes 257..285 extra */ 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 201, 196}; static const unsigned short dbase[32] = { /* Distance codes 0..29 base */ 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577, 0, 0}; static const unsigned short dext[32] = { /* Distance codes 0..29 extra */ 16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 64, 64}; /* Process a set of code lengths to create a canonical Huffman code. The code lengths are lens[0..codes-1]. Each length corresponds to the symbols 0..codes-1. The Huffman code is generated by first sorting the symbols by length from short to long, and retaining the symbol order for codes with equal lengths. Then the code starts with all zero bits for the first code of the shortest length, and the codes are integer increments for the same length, and zeros are appended as the length increases. For the deflate format, these bits are stored backwards from their more natural integer increment ordering, and so when the decoding tables are built in the large loop below, the integer codes are incremented backwards. This routine assumes, but does not check, that all of the entries in lens[] are in the range 0..MAXBITS. The caller must assure this. 1..MAXBITS is interpreted as that code length. zero means that that symbol does not occur in this code. The codes are sorted by computing a count of codes for each length, creating from that a table of starting indices for each length in the sorted table, and then entering the symbols in order in the sorted table. The sorted table is work[], with that space being provided by the caller. The length counts are used for other purposes as well, i.e. finding the minimum and maximum length codes, determining if there are any codes at all, checking for a valid set of lengths, and looking ahead at length counts to determine sub-table sizes when building the decoding tables. */ /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */ for (len = 0; len <= MAXBITS; len++) count[len] = 0; for (sym = 0; sym < codes; sym++) count[lens[sym]]++; /* bound code lengths, force root to be within code lengths */ root = *bits; for (max = MAXBITS; max >= 1; max--) if (count[max] != 0) break; if (root > max) root = max; if (max == 0) { /* no symbols to code at all */ this.op = (unsigned char)64; /* invalid code marker */ this.bits = (unsigned char)1; this.val = (unsigned short)0; *(*table)++ = this; /* make a table to force an error */ *(*table)++ = this; *bits = 1; return 0; /* no symbols, but wait for decoding to report error */ } for (min = 1; min <= MAXBITS; min++) if (count[min] != 0) break; if (root < min) root = min; /* check for an over-subscribed or incomplete set of lengths */ left = 1; for (len = 1; len <= MAXBITS; len++) { left <<= 1; left -= count[len]; if (left < 0) return -1; /* over-subscribed */ } if (left > 0 && (type == CODES || max != 1)) return -1; /* incomplete set */ /* generate offsets into symbol table for each length for sorting */ offs[1] = 0; for (len = 1; len < MAXBITS; len++) offs[len + 1] = offs[len] + count[len]; /* sort symbols by length, by symbol order within each length */ for (sym = 0; sym < codes; sym++) if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym; /* Create and fill in decoding tables. In this loop, the table being filled is at next and has curr index bits. The code being used is huff with length len. That code is converted to an index by dropping drop bits off of the bottom. For codes where len is less than drop + curr, those top drop + curr - len bits are incremented through all values to fill the table with replicated entries. root is the number of index bits for the root table. When len exceeds root, sub-tables are created pointed to by the root entry with an index of the low root bits of huff. This is saved in low to check for when a new sub-table should be started. drop is zero when the root table is being filled, and drop is root when sub-tables are being filled. When a new sub-table is needed, it is necessary to look ahead in the code lengths to determine what size sub-table is needed. The length counts are used for this, and so count[] is decremented as codes are entered in the tables. used keeps track of how many table entries have been allocated from the provided *table space. It is checked when a LENS table is being made against the space in *table, ENOUGH, minus the maximum space needed by the worst case distance code, MAXD. This should never happen, but the sufficiency of ENOUGH has not been proven exhaustively, hence the check. This assumes that when type == LENS, bits == 9. sym increments through all symbols, and the loop terminates when all codes of length max, i.e. all codes, have been processed. This routine permits incomplete codes, so another loop after this one fills in the rest of the decoding tables with invalid code markers. */ /* set up for code type */ switch (type) { case CODES: base = extra = work; /* dummy value--not used */ end = 19; break; case LENS: base = lbase; base -= 257; extra = lext; extra -= 257; end = 256; break; default: /* DISTS */ base = dbase; extra = dext; end = -1; } /* initialize state for loop */ huff = 0; /* starting code */ sym = 0; /* starting code symbol */ len = min; /* starting code length */ next = *table; /* current table to fill in */ curr = root; /* current table index bits */ drop = 0; /* current bits to drop from code for index */ low = (unsigned)(-1); /* trigger new sub-table when len > root */ used = 1U << root; /* use root table entries */ mask = used - 1; /* mask for comparing low */ /* check available table space */ if (type == LENS && used >= ENOUGH - MAXD) return 1; /* process all codes and make table entries */ for (;;) { /* create table entry */ this.bits = (unsigned char)(len - drop); if ((int)(work[sym]) < end) { this.op = (unsigned char)0; this.val = work[sym]; } else if ((int)(work[sym]) > end) { this.op = (unsigned char)(extra[work[sym]]); this.val = base[work[sym]]; } else { this.op = (unsigned char)(32 + 64); /* end of block */ this.val = 0; } /* replicate for those indices with low len bits equal to huff */ incr = 1U << (len - drop); fill = 1U << curr; min = fill; /* save offset to next table */ do { fill -= incr; next[(huff >> drop) + fill] = this; } while (fill != 0); /* backwards increment the len-bit code huff */ incr = 1U << (len - 1); while (huff & incr) incr >>= 1; if (incr != 0) { huff &= incr - 1; huff += incr; } else huff = 0; /* go to next symbol, update count, len */ sym++; if (--(count[len]) == 0) { if (len == max) break; len = lens[work[sym]]; } /* create new sub-table if needed */ if (len > root && (huff & mask) != low) { /* if first time, transition to sub-tables */ if (drop == 0) drop = root; /* increment past last table */ next += min; /* here min is 1 << curr */ /* determine length of next table */ curr = len - drop; left = (int)(1 << curr); while (curr + drop < max) { left -= count[curr + drop]; if (left <= 0) break; curr++; left <<= 1; } /* check for enough space */ used += 1U << curr; if (type == LENS && used >= ENOUGH - MAXD) return 1; /* point entry in root table to sub-table */ low = huff & mask; (*table)[low].op = (unsigned char)curr; (*table)[low].bits = (unsigned char)root; (*table)[low].val = (unsigned short)(next - *table); } } /* Fill in rest of table for incomplete codes. This loop is similar to the loop above in incrementing huff for table indices. It is assumed that len is equal to curr + drop, so there is no loop needed to increment through high index bits. When the current sub-table is filled, the loop drops back to the root table to fill in any remaining entries there. */ this.op = (unsigned char)64; /* invalid code marker */ this.bits = (unsigned char)(len - drop); this.val = (unsigned short)0; while (huff != 0) { /* when done with sub-table, drop back to root table */ if (drop != 0 && (huff & mask) != low) { drop = 0; len = root; next = *table; this.bits = (unsigned char)len; } /* put invalid code marker in table */ next[huff >> drop] = this; /* backwards increment the len-bit code huff */ incr = 1U << (len - 1); while (huff & incr) incr >>= 1; if (incr != 0) { huff &= incr - 1; huff += incr; } else huff = 0; } /* set return parameters */ *table += used; *bits = root; return 0; } unalz/zlib/inftrees.h00007000001040€ÿÿÿÿ0000000457410404306311017415 0ustar Administrators????????/* inftrees.h -- header to use inftrees.c * Copyright (C) 1995-2005 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ /* WARNING: this file should *not* be used by applications. It is part of the implementation of the compression library and is subject to change. Applications should only use zlib.h. */ /* Structure for decoding tables. Each entry provides either the information needed to do the operation requested by the code that indexed that table entry, or it provides a pointer to another table that indexes more bits of the code. op indicates whether the entry is a pointer to another table, a literal, a length or distance, an end-of-block, or an invalid code. For a table pointer, the low four bits of op is the number of index bits of that table. For a length or distance, the low four bits of op is the number of extra bits to get after the code. bits is the number of bits in this code or part of the code to drop off of the bit buffer. val is the actual byte to output in the case of a literal, the base length or distance, or the offset from the current table to the next table. Each entry is four bytes. */ typedef struct { unsigned char op; /* operation, extra bits, table bits */ unsigned char bits; /* bits in this part of the code */ unsigned short val; /* offset in table or code value */ } code; /* op values as set by inflate_table(): 00000000 - literal 0000tttt - table link, tttt != 0 is the number of table index bits 0001eeee - length or distance, eeee is the number of extra bits 01100000 - end of block 01000000 - invalid code */ /* Maximum size of dynamic tree. The maximum found in a long but non- exhaustive search was 1444 code structures (852 for length/literals and 592 for distances, the latter actually the result of an exhaustive search). The true maximum is not known, but the value below is more than safe. */ #define ENOUGH 2048 #define MAXD 592 /* Type of code to build for inftable() */ typedef enum { CODES, LENS, DISTS } codetype; extern int inflate_table OF((codetype type, unsigned short FAR *lens, unsigned codes, code FAR * FAR *table, unsigned FAR *bits, unsigned short FAR *work)); unalz/zlib/zconf.h00007000001040€ÿÿÿÿ0000002322410404306311016706 0ustar Administrators????????/* zconf.h -- configuration of the zlib compression library * Copyright (C) 1995-2005 Jean-loup Gailly. * For conditions of distribution and use, see copyright notice in zlib.h */ /* @(#) $Id$ */ #ifndef ZCONF_H #define ZCONF_H /* * If you *really* need a unique prefix for all types and library functions, * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. */ #ifdef Z_PREFIX # define deflateInit_ z_deflateInit_ # define deflate z_deflate # define deflateEnd z_deflateEnd # define inflateInit_ z_inflateInit_ # define inflate z_inflate # define inflateEnd z_inflateEnd # define deflateInit2_ z_deflateInit2_ # define deflateSetDictionary z_deflateSetDictionary # define deflateCopy z_deflateCopy # define deflateReset z_deflateReset # define deflateParams z_deflateParams # define deflateBound z_deflateBound # define deflatePrime z_deflatePrime # define inflateInit2_ z_inflateInit2_ # define inflateSetDictionary z_inflateSetDictionary # define inflateSync z_inflateSync # define inflateSyncPoint z_inflateSyncPoint # define inflateCopy z_inflateCopy # define inflateReset z_inflateReset # define inflateBack z_inflateBack # define inflateBackEnd z_inflateBackEnd # define compress z_compress # define compress2 z_compress2 # define compressBound z_compressBound # define uncompress z_uncompress # define adler32 z_adler32 # define crc32 z_crc32 # define get_crc_table z_get_crc_table # define zError z_zError # define alloc_func z_alloc_func # define free_func z_free_func # define in_func z_in_func # define out_func z_out_func # define Byte z_Byte # define uInt z_uInt # define uLong z_uLong # define Bytef z_Bytef # define charf z_charf # define intf z_intf # define uIntf z_uIntf # define uLongf z_uLongf # define voidpf z_voidpf # define voidp z_voidp #endif #if defined(__MSDOS__) && !defined(MSDOS) # define MSDOS #endif #if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) # define OS2 #endif #if defined(_WINDOWS) && !defined(WINDOWS) # define WINDOWS #endif #if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) # ifndef WIN32 # define WIN32 # endif #endif #if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) # if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) # ifndef SYS16BIT # define SYS16BIT # endif # endif #endif /* * Compile with -DMAXSEG_64K if the alloc function cannot allocate more * than 64k bytes at a time (needed on systems with 16-bit int). */ #ifdef SYS16BIT # define MAXSEG_64K #endif #ifdef MSDOS # define UNALIGNED_OK #endif #ifdef __STDC_VERSION__ # ifndef STDC # define STDC # endif # if __STDC_VERSION__ >= 199901L # ifndef STDC99 # define STDC99 # endif # endif #endif #if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) # define STDC #endif #if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) # define STDC #endif #if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) # define STDC #endif #if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) # define STDC #endif #if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ # define STDC #endif #ifndef STDC # ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ # define const /* note: need a more gentle solution here */ # endif #endif /* Some Mac compilers merge all .h files incorrectly: */ #if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) # define NO_DUMMY_DECL #endif /* Maximum value for memLevel in deflateInit2 */ #ifndef MAX_MEM_LEVEL # ifdef MAXSEG_64K # define MAX_MEM_LEVEL 8 # else # define MAX_MEM_LEVEL 9 # endif #endif /* Maximum value for windowBits in deflateInit2 and inflateInit2. * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files * created by gzip. (Files created by minigzip can still be extracted by * gzip.) */ #ifndef MAX_WBITS # define MAX_WBITS 15 /* 32K LZ77 window */ #endif /* The memory requirements for deflate are (in bytes): (1 << (windowBits+2)) + (1 << (memLevel+9)) that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) plus a few kilobytes for small objects. For example, if you want to reduce the default memory requirements from 256K to 128K, compile with make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" Of course this will generally degrade compression (there's no free lunch). The memory requirements for inflate are (in bytes) 1 << windowBits that is, 32K for windowBits=15 (default value) plus a few kilobytes for small objects. */ /* Type declarations */ #ifndef OF /* function prototypes */ # ifdef STDC # define OF(args) args # else # define OF(args) () # endif #endif /* The following definitions for FAR are needed only for MSDOS mixed * model programming (small or medium model with some far allocations). * This was tested only with MSC; for other MSDOS compilers you may have * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, * just define FAR to be empty. */ #ifdef SYS16BIT # if defined(M_I86SM) || defined(M_I86MM) /* MSC small or medium model */ # define SMALL_MEDIUM # ifdef _MSC_VER # define FAR _far # else # define FAR far # endif # endif # if (defined(__SMALL__) || defined(__MEDIUM__)) /* Turbo C small or medium model */ # define SMALL_MEDIUM # ifdef __BORLANDC__ # define FAR _far # else # define FAR far # endif # endif #endif #if defined(WINDOWS) || defined(WIN32) /* If building or using zlib as a DLL, define ZLIB_DLL. * This is not mandatory, but it offers a little performance increase. */ # ifdef ZLIB_DLL # if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) # ifdef ZLIB_INTERNAL # define ZEXTERN extern __declspec(dllexport) # else # define ZEXTERN extern __declspec(dllimport) # endif # endif # endif /* ZLIB_DLL */ /* If building or using zlib with the WINAPI/WINAPIV calling convention, * define ZLIB_WINAPI. * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. */ # ifdef ZLIB_WINAPI # ifdef FAR # undef FAR # endif # include /* No need for _export, use ZLIB.DEF instead. */ /* For complete Windows compatibility, use WINAPI, not __stdcall. */ # define ZEXPORT WINAPI # ifdef WIN32 # define ZEXPORTVA WINAPIV # else # define ZEXPORTVA FAR CDECL # endif # endif #endif #if defined (__BEOS__) # ifdef ZLIB_DLL # ifdef ZLIB_INTERNAL # define ZEXPORT __declspec(dllexport) # define ZEXPORTVA __declspec(dllexport) # else # define ZEXPORT __declspec(dllimport) # define ZEXPORTVA __declspec(dllimport) # endif # endif #endif #ifndef ZEXTERN # define ZEXTERN extern #endif #ifndef ZEXPORT # define ZEXPORT #endif #ifndef ZEXPORTVA # define ZEXPORTVA #endif #ifndef FAR # define FAR #endif #if !defined(__MACTYPES__) typedef unsigned char Byte; /* 8 bits */ #endif typedef unsigned int uInt; /* 16 bits or more */ typedef unsigned long uLong; /* 32 bits or more */ #ifdef SMALL_MEDIUM /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ # define Bytef Byte FAR #else typedef Byte FAR Bytef; #endif typedef char FAR charf; typedef int FAR intf; typedef uInt FAR uIntf; typedef uLong FAR uLongf; #ifdef STDC typedef void const *voidpc; typedef void FAR *voidpf; typedef void *voidp; #else typedef Byte const *voidpc; typedef Byte FAR *voidpf; typedef Byte *voidp; #endif #if 0 /* HAVE_UNISTD_H -- this line is updated by ./configure */ # include /* for off_t */ # include /* for SEEK_* and off_t */ # ifdef VMS # include /* for off_t */ # endif # define z_off_t off_t #endif #ifndef SEEK_SET # define SEEK_SET 0 /* Seek from beginning of file. */ # define SEEK_CUR 1 /* Seek from current position. */ # define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ #endif #ifndef z_off_t # define z_off_t long #endif #if defined(__OS400__) # define NO_vsnprintf #endif #if defined(__MVS__) # define NO_vsnprintf # ifdef FAR # undef FAR # endif #endif /* MVS linker does not support external names larger than 8 bytes */ #if defined(__MVS__) # pragma map(deflateInit_,"DEIN") # pragma map(deflateInit2_,"DEIN2") # pragma map(deflateEnd,"DEEND") # pragma map(deflateBound,"DEBND") # pragma map(inflateInit_,"ININ") # pragma map(inflateInit2_,"ININ2") # pragma map(inflateEnd,"INEND") # pragma map(inflateSync,"INSY") # pragma map(inflateSetDictionary,"INSEDI") # pragma map(compressBound,"CMBND") # pragma map(inflate_table,"INTABL") # pragma map(inflate_fast,"INFA") # pragma map(inflate_copyright,"INCOPY") #endif #endif /* ZCONF_H */ unalz/zlib/zlib.h00007000001040€ÿÿÿÿ0000020373110404306311016532 0ustar Administrators????????/* zlib.h -- interface of the 'zlib' general purpose compression library version 1.2.3, July 18th, 2005 Copyright (C) 1995-2005 Jean-loup Gailly and Mark Adler This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. Jean-loup Gailly Mark Adler jloup@gzip.org madler@alumni.caltech.edu The data format used by the zlib library is described by RFCs (Request for Comments) 1950 to 1952 in the files http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format). */ #ifndef ZLIB_H #define ZLIB_H #include "zconf.h" #ifdef __cplusplus extern "C" { #endif #define ZLIB_VERSION "1.2.3" #define ZLIB_VERNUM 0x1230 /* The 'zlib' compression library provides in-memory compression and decompression functions, including integrity checks of the uncompressed data. This version of the library supports only one compression method (deflation) but other algorithms will be added later and will have the same stream interface. Compression can be done in a single step if the buffers are large enough (for example if an input file is mmap'ed), or can be done by repeated calls of the compression function. In the latter case, the application must provide more input and/or consume the output (providing more output space) before each call. The compressed data format used by default by the in-memory functions is the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped around a deflate stream, which is itself documented in RFC 1951. The library also supports reading and writing files in gzip (.gz) format with an interface similar to that of stdio using the functions that start with "gz". The gzip format is different from the zlib format. gzip is a gzip wrapper, documented in RFC 1952, wrapped around a deflate stream. This library can optionally read and write gzip streams in memory as well. The zlib format was designed to be compact and fast for use in memory and on communications channels. The gzip format was designed for single- file compression on file systems, has a larger header than zlib to maintain directory information, and uses a different, slower check method than zlib. The library does not install any signal handler. The decoder checks the consistency of the compressed data, so the library should never crash even in case of corrupted input. */ typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size)); typedef void (*free_func) OF((voidpf opaque, voidpf address)); struct internal_state; typedef struct z_stream_s { Bytef *next_in; /* next input byte */ uInt avail_in; /* number of bytes available at next_in */ uLong total_in; /* total nb of input bytes read so far */ Bytef *next_out; /* next output byte should be put there */ uInt avail_out; /* remaining free space at next_out */ uLong total_out; /* total nb of bytes output so far */ char *msg; /* last error message, NULL if no error */ struct internal_state FAR *state; /* not visible by applications */ alloc_func zalloc; /* used to allocate the internal state */ free_func zfree; /* used to free the internal state */ voidpf opaque; /* private data object passed to zalloc and zfree */ int data_type; /* best guess about the data type: binary or text */ uLong adler; /* adler32 value of the uncompressed data */ uLong reserved; /* reserved for future use */ } z_stream; typedef z_stream FAR *z_streamp; /* gzip header information passed to and from zlib routines. See RFC 1952 for more details on the meanings of these fields. */ typedef struct gz_header_s { int text; /* true if compressed data believed to be text */ uLong time; /* modification time */ int xflags; /* extra flags (not used when writing a gzip file) */ int os; /* operating system */ Bytef *extra; /* pointer to extra field or Z_NULL if none */ uInt extra_len; /* extra field length (valid if extra != Z_NULL) */ uInt extra_max; /* space at extra (only when reading header) */ Bytef *name; /* pointer to zero-terminated file name or Z_NULL */ uInt name_max; /* space at name (only when reading header) */ Bytef *comment; /* pointer to zero-terminated comment or Z_NULL */ uInt comm_max; /* space at comment (only when reading header) */ int hcrc; /* true if there was or will be a header crc */ int done; /* true when done reading gzip header (not used when writing a gzip file) */ } gz_header; typedef gz_header FAR *gz_headerp; /* The application must update next_in and avail_in when avail_in has dropped to zero. It must update next_out and avail_out when avail_out has dropped to zero. The application must initialize zalloc, zfree and opaque before calling the init function. All other fields are set by the compression library and must not be updated by the application. The opaque value provided by the application will be passed as the first parameter for calls of zalloc and zfree. This can be useful for custom memory management. The compression library attaches no meaning to the opaque value. zalloc must return Z_NULL if there is not enough memory for the object. If zlib is used in a multi-threaded application, zalloc and zfree must be thread safe. On 16-bit systems, the functions zalloc and zfree must be able to allocate exactly 65536 bytes, but will not be required to allocate more than this if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, pointers returned by zalloc for objects of exactly 65536 bytes *must* have their offset normalized to zero. The default allocation function provided by this library ensures this (see zutil.c). To reduce memory requirements and avoid any allocation of 64K objects, at the expense of compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h). The fields total_in and total_out can be used for statistics or progress reports. After compression, total_in holds the total size of the uncompressed data and may be saved for use in the decompressor (particularly if the decompressor wants to decompress everything in a single step). */ /* constants */ #define Z_NO_FLUSH 0 #define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */ #define Z_SYNC_FLUSH 2 #define Z_FULL_FLUSH 3 #define Z_FINISH 4 #define Z_BLOCK 5 /* Allowed flush values; see deflate() and inflate() below for details */ #define Z_OK 0 #define Z_STREAM_END 1 #define Z_NEED_DICT 2 #define Z_ERRNO (-1) #define Z_STREAM_ERROR (-2) #define Z_DATA_ERROR (-3) #define Z_MEM_ERROR (-4) #define Z_BUF_ERROR (-5) #define Z_VERSION_ERROR (-6) /* Return codes for the compression/decompression functions. Negative * values are errors, positive values are used for special but normal events. */ #define Z_NO_COMPRESSION 0 #define Z_BEST_SPEED 1 #define Z_BEST_COMPRESSION 9 #define Z_DEFAULT_COMPRESSION (-1) /* compression levels */ #define Z_FILTERED 1 #define Z_HUFFMAN_ONLY 2 #define Z_RLE 3 #define Z_FIXED 4 #define Z_DEFAULT_STRATEGY 0 /* compression strategy; see deflateInit2() below for details */ #define Z_BINARY 0 #define Z_TEXT 1 #define Z_ASCII Z_TEXT /* for compatibility with 1.2.2 and earlier */ #define Z_UNKNOWN 2 /* Possible values of the data_type field (though see inflate()) */ #define Z_DEFLATED 8 /* The deflate compression method (the only one supported in this version) */ #define Z_NULL 0 /* for initializing zalloc, zfree, opaque */ #define zlib_version zlibVersion() /* for compatibility with versions < 1.0.2 */ /* basic functions */ ZEXTERN const char * ZEXPORT zlibVersion OF((void)); /* The application can compare zlibVersion and ZLIB_VERSION for consistency. If the first character differs, the library code actually used is not compatible with the zlib.h header file used by the application. This check is automatically made by deflateInit and inflateInit. */ /* ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level)); Initializes the internal stream state for compression. The fields zalloc, zfree and opaque must be initialized before by the caller. If zalloc and zfree are set to Z_NULL, deflateInit updates them to use default allocation functions. The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9: 1 gives best speed, 9 gives best compression, 0 gives no compression at all (the input data is simply copied a block at a time). Z_DEFAULT_COMPRESSION requests a default compromise between speed and compression (currently equivalent to level 6). deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough memory, Z_STREAM_ERROR if level is not a valid compression level, Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible with the version assumed by the caller (ZLIB_VERSION). msg is set to null if there is no error message. deflateInit does not perform any compression: this will be done by deflate(). */ ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush)); /* deflate compresses as much data as possible, and stops when the input buffer becomes empty or the output buffer becomes full. It may introduce some output latency (reading input without producing any output) except when forced to flush. The detailed semantics are as follows. deflate performs one or both of the following actions: - Compress more input starting at next_in and update next_in and avail_in accordingly. If not all input can be processed (because there is not enough room in the output buffer), next_in and avail_in are updated and processing will resume at this point for the next call of deflate(). - Provide more output starting at next_out and update next_out and avail_out accordingly. This action is forced if the parameter flush is non zero. Forcing flush frequently degrades the compression ratio, so this parameter should be set only when necessary (in interactive applications). Some output may be provided even if flush is not set. Before the call of deflate(), the application should ensure that at least one of the actions is possible, by providing more input and/or consuming more output, and updating avail_in or avail_out accordingly; avail_out should never be zero before the call. The application can consume the compressed output when it wants, for example when the output buffer is full (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK and with zero avail_out, it must be called again after making room in the output buffer because there might be more output pending. Normally the parameter flush is set to Z_NO_FLUSH, which allows deflate to decide how much data to accumualte before producing output, in order to maximize compression. If the parameter flush is set to Z_SYNC_FLUSH, all pending output is flushed to the output buffer and the output is aligned on a byte boundary, so that the decompressor can get all input data available so far. (In particular avail_in is zero after the call if enough output space has been provided before the call.) Flushing may degrade compression for some compression algorithms and so it should be used only when necessary. If flush is set to Z_FULL_FLUSH, all output is flushed as with Z_SYNC_FLUSH, and the compression state is reset so that decompression can restart from this point if previous compressed data has been damaged or if random access is desired. Using Z_FULL_FLUSH too often can seriously degrade compression. If deflate returns with avail_out == 0, this function must be called again with the same value of the flush parameter and more output space (updated avail_out), until the flush is complete (deflate returns with non-zero avail_out). In the case of a Z_FULL_FLUSH or Z_SYNC_FLUSH, make sure that avail_out is greater than six to avoid repeated flush markers due to avail_out == 0 on return. If the parameter flush is set to Z_FINISH, pending input is processed, pending output is flushed and deflate returns with Z_STREAM_END if there was enough output space; if deflate returns with Z_OK, this function must be called again with Z_FINISH and more output space (updated avail_out) but no more input data, until it returns with Z_STREAM_END or an error. After deflate has returned Z_STREAM_END, the only possible operations on the stream are deflateReset or deflateEnd. Z_FINISH can be used immediately after deflateInit if all the compression is to be done in a single step. In this case, avail_out must be at least the value returned by deflateBound (see below). If deflate does not return Z_STREAM_END, then it must be called again as described above. deflate() sets strm->adler to the adler32 checksum of all input read so far (that is, total_in bytes). deflate() may update strm->data_type if it can make a good guess about the input data type (Z_BINARY or Z_TEXT). In doubt, the data is considered binary. This field is only for information purposes and does not affect the compression algorithm in any manner. deflate() returns Z_OK if some progress has been made (more input processed or more output produced), Z_STREAM_END if all input has been consumed and all output has been produced (only when flush is set to Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible (for example avail_in or avail_out was zero). Note that Z_BUF_ERROR is not fatal, and deflate() can be called again with more input and more output space to continue compressing. */ ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm)); /* All dynamically allocated data structures for this stream are freed. This function discards any unprocessed input and does not flush any pending output. deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state was inconsistent, Z_DATA_ERROR if the stream was freed prematurely (some input or output was discarded). In the error case, msg may be set but then points to a static string (which must not be deallocated). */ /* ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm)); Initializes the internal stream state for decompression. The fields next_in, avail_in, zalloc, zfree and opaque must be initialized before by the caller. If next_in is not Z_NULL and avail_in is large enough (the exact value depends on the compression method), inflateInit determines the compression method from the zlib header and allocates all data structures accordingly; otherwise the allocation will be deferred to the first call of inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to use default allocation functions. inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough memory, Z_VERSION_ERROR if the zlib library version is incompatible with the version assumed by the caller. msg is set to null if there is no error message. inflateInit does not perform any decompression apart from reading the zlib header if present: this will be done by inflate(). (So next_in and avail_in may be modified, but next_out and avail_out are unchanged.) */ ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush)); /* inflate decompresses as much data as possible, and stops when the input buffer becomes empty or the output buffer becomes full. It may introduce some output latency (reading input without producing any output) except when forced to flush. The detailed semantics are as follows. inflate performs one or both of the following actions: - Decompress more input starting at next_in and update next_in and avail_in accordingly. If not all input can be processed (because there is not enough room in the output buffer), next_in is updated and processing will resume at this point for the next call of inflate(). - Provide more output starting at next_out and update next_out and avail_out accordingly. inflate() provides as much output as possible, until there is no more input data or no more space in the output buffer (see below about the flush parameter). Before the call of inflate(), the application should ensure that at least one of the actions is possible, by providing more input and/or consuming more output, and updating the next_* and avail_* values accordingly. The application can consume the uncompressed output when it wants, for example when the output buffer is full (avail_out == 0), or after each call of inflate(). If inflate returns Z_OK and with zero avail_out, it must be called again after making room in the output buffer because there might be more output pending. The flush parameter of inflate() can be Z_NO_FLUSH, Z_SYNC_FLUSH, Z_FINISH, or Z_BLOCK. Z_SYNC_FLUSH requests that inflate() flush as much output as possible to the output buffer. Z_BLOCK requests that inflate() stop if and when it gets to the next deflate block boundary. When decoding the zlib or gzip format, this will cause inflate() to return immediately after the header and before the first block. When doing a raw inflate, inflate() will go ahead and process the first block, and will return when it gets to the end of that block, or when it runs out of data. The Z_BLOCK option assists in appending to or combining deflate streams. Also to assist in this, on return inflate() will set strm->data_type to the number of unused bits in the last byte taken from strm->next_in, plus 64 if inflate() is currently decoding the last block in the deflate stream, plus 128 if inflate() returned immediately after decoding an end-of-block code or decoding the complete header up to just before the first byte of the deflate stream. The end-of-block will not be indicated until all of the uncompressed data from that block has been written to strm->next_out. The number of unused bits may in general be greater than seven, except when bit 7 of data_type is set, in which case the number of unused bits will be less than eight. inflate() should normally be called until it returns Z_STREAM_END or an error. However if all decompression is to be performed in a single step (a single call of inflate), the parameter flush should be set to Z_FINISH. In this case all pending input is processed and all pending output is flushed; avail_out must be large enough to hold all the uncompressed data. (The size of the uncompressed data may have been saved by the compressor for this purpose.) The next operation on this stream must be inflateEnd to deallocate the decompression state. The use of Z_FINISH is never required, but can be used to inform inflate that a faster approach may be used for the single inflate() call. In this implementation, inflate() always flushes as much output as possible to the output buffer, and always uses the faster approach on the first call. So the only effect of the flush parameter in this implementation is on the return value of inflate(), as noted below, or when it returns early because Z_BLOCK is used. If a preset dictionary is needed after this call (see inflateSetDictionary below), inflate sets strm->adler to the adler32 checksum of the dictionary chosen by the compressor and returns Z_NEED_DICT; otherwise it sets strm->adler to the adler32 checksum of all output produced so far (that is, total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described below. At the end of the stream, inflate() checks that its computed adler32 checksum is equal to that saved by the compressor and returns Z_STREAM_END only if the checksum is correct. inflate() will decompress and check either zlib-wrapped or gzip-wrapped deflate data. The header type is detected automatically. Any information contained in the gzip header is not retained, so applications that need that information should instead use raw inflate, see inflateInit2() below, or inflateBack() and perform their own processing of the gzip header and trailer. inflate() returns Z_OK if some progress has been made (more input processed or more output produced), Z_STREAM_END if the end of the compressed data has been reached and all uncompressed output has been produced, Z_NEED_DICT if a preset dictionary is needed at this point, Z_DATA_ERROR if the input data was corrupted (input stream not conforming to the zlib format or incorrect check value), Z_STREAM_ERROR if the stream structure was inconsistent (for example if next_in or next_out was NULL), Z_MEM_ERROR if there was not enough memory, Z_BUF_ERROR if no progress is possible or if there was not enough room in the output buffer when Z_FINISH is used. Note that Z_BUF_ERROR is not fatal, and inflate() can be called again with more input and more output space to continue decompressing. If Z_DATA_ERROR is returned, the application may then call inflateSync() to look for a good compression block if a partial recovery of the data is desired. */ ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm)); /* All dynamically allocated data structures for this stream are freed. This function discards any unprocessed input and does not flush any pending output. inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state was inconsistent. In the error case, msg may be set but then points to a static string (which must not be deallocated). */ /* Advanced functions */ /* The following functions are needed only in some special applications. */ /* ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm, int level, int method, int windowBits, int memLevel, int strategy)); This is another version of deflateInit with more compression options. The fields next_in, zalloc, zfree and opaque must be initialized before by the caller. The method parameter is the compression method. It must be Z_DEFLATED in this version of the library. The windowBits parameter is the base two logarithm of the window size (the size of the history buffer). It should be in the range 8..15 for this version of the library. Larger values of this parameter result in better compression at the expense of memory usage. The default value is 15 if deflateInit is used instead. windowBits can also be -8..-15 for raw deflate. In this case, -windowBits determines the window size. deflate() will then generate raw deflate data with no zlib header or trailer, and will not compute an adler32 check value. windowBits can also be greater than 15 for optional gzip encoding. Add 16 to windowBits to write a simple gzip header and trailer around the compressed data instead of a zlib wrapper. The gzip header will have no file name, no extra data, no comment, no modification time (set to zero), no header crc, and the operating system will be set to 255 (unknown). If a gzip stream is being written, strm->adler is a crc32 instead of an adler32. The memLevel parameter specifies how much memory should be allocated for the internal compression state. memLevel=1 uses minimum memory but is slow and reduces compression ratio; memLevel=9 uses maximum memory for optimal speed. The default value is 8. See zconf.h for total memory usage as a function of windowBits and memLevel. The strategy parameter is used to tune the compression algorithm. Use the value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a filter (or predictor), Z_HUFFMAN_ONLY to force Huffman encoding only (no string match), or Z_RLE to limit match distances to one (run-length encoding). Filtered data consists mostly of small values with a somewhat random distribution. In this case, the compression algorithm is tuned to compress them better. The effect of Z_FILTERED is to force more Huffman coding and less string matching; it is somewhat intermediate between Z_DEFAULT and Z_HUFFMAN_ONLY. Z_RLE is designed to be almost as fast as Z_HUFFMAN_ONLY, but give better compression for PNG image data. The strategy parameter only affects the compression ratio but not the correctness of the compressed output even if it is not set appropriately. Z_FIXED prevents the use of dynamic Huffman codes, allowing for a simpler decoder for special applications. deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid method). msg is set to null if there is no error message. deflateInit2 does not perform any compression: this will be done by deflate(). */ ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm, const Bytef *dictionary, uInt dictLength)); /* Initializes the compression dictionary from the given byte sequence without producing any compressed output. This function must be called immediately after deflateInit, deflateInit2 or deflateReset, before any call of deflate. The compressor and decompressor must use exactly the same dictionary (see inflateSetDictionary). The dictionary should consist of strings (byte sequences) that are likely to be encountered later in the data to be compressed, with the most commonly used strings preferably put towards the end of the dictionary. Using a dictionary is most useful when the data to be compressed is short and can be predicted with good accuracy; the data can then be compressed better than with the default empty dictionary. Depending on the size of the compression data structures selected by deflateInit or deflateInit2, a part of the dictionary may in effect be discarded, for example if the dictionary is larger than the window size in deflate or deflate2. Thus the strings most likely to be useful should be put at the end of the dictionary, not at the front. In addition, the current implementation of deflate will use at most the window size minus 262 bytes of the provided dictionary. Upon return of this function, strm->adler is set to the adler32 value of the dictionary; the decompressor may later use this value to determine which dictionary has been used by the compressor. (The adler32 value applies to the whole dictionary even if only a subset of the dictionary is actually used by the compressor.) If a raw deflate was requested, then the adler32 value is not computed and strm->adler is not set. deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a parameter is invalid (such as NULL dictionary) or the stream state is inconsistent (for example if deflate has already been called for this stream or if the compression method is bsort). deflateSetDictionary does not perform any compression: this will be done by deflate(). */ ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest, z_streamp source)); /* Sets the destination stream as a complete copy of the source stream. This function can be useful when several compression strategies will be tried, for example when there are several ways of pre-processing the input data with a filter. The streams that will be discarded should then be freed by calling deflateEnd. Note that deflateCopy duplicates the internal compression state which can be quite large, so this strategy is slow and can consume lots of memory. deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not enough memory, Z_STREAM_ERROR if the source stream state was inconsistent (such as zalloc being NULL). msg is left unchanged in both source and destination. */ ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm)); /* This function is equivalent to deflateEnd followed by deflateInit, but does not free and reallocate all the internal compression state. The stream will keep the same compression level and any other attributes that may have been set by deflateInit2. deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source stream state was inconsistent (such as zalloc or state being NULL). */ ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm, int level, int strategy)); /* Dynamically update the compression level and compression strategy. The interpretation of level and strategy is as in deflateInit2. This can be used to switch between compression and straight copy of the input data, or to switch to a different kind of input data requiring a different strategy. If the compression level is changed, the input available so far is compressed with the old level (and may be flushed); the new level will take effect only at the next call of deflate(). Before the call of deflateParams, the stream state must be set as for a call of deflate(), since the currently available input may have to be compressed and flushed. In particular, strm->avail_out must be non-zero. deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR if strm->avail_out was zero. */ ZEXTERN int ZEXPORT deflateTune OF((z_streamp strm, int good_length, int max_lazy, int nice_length, int max_chain)); /* Fine tune deflate's internal compression parameters. This should only be used by someone who understands the algorithm used by zlib's deflate for searching for the best matching string, and even then only by the most fanatic optimizer trying to squeeze out the last compressed bit for their specific input data. Read the deflate.c source code for the meaning of the max_lazy, good_length, nice_length, and max_chain parameters. deflateTune() can be called after deflateInit() or deflateInit2(), and returns Z_OK on success, or Z_STREAM_ERROR for an invalid deflate stream. */ ZEXTERN uLong ZEXPORT deflateBound OF((z_streamp strm, uLong sourceLen)); /* deflateBound() returns an upper bound on the compressed size after deflation of sourceLen bytes. It must be called after deflateInit() or deflateInit2(). This would be used to allocate an output buffer for deflation in a single pass, and so would be called before deflate(). */ ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm, int bits, int value)); /* deflatePrime() inserts bits in the deflate output stream. The intent is that this function is used to start off the deflate output with the bits leftover from a previous deflate stream when appending to it. As such, this function can only be used for raw deflate, and must be used before the first deflate() call after a deflateInit2() or deflateReset(). bits must be less than or equal to 16, and that many of the least significant bits of value will be inserted in the output. deflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source stream state was inconsistent. */ ZEXTERN int ZEXPORT deflateSetHeader OF((z_streamp strm, gz_headerp head)); /* deflateSetHeader() provides gzip header information for when a gzip stream is requested by deflateInit2(). deflateSetHeader() may be called after deflateInit2() or deflateReset() and before the first call of deflate(). The text, time, os, extra field, name, and comment information in the provided gz_header structure are written to the gzip header (xflag is ignored -- the extra flags are set according to the compression level). The caller must assure that, if not Z_NULL, name and comment are terminated with a zero byte, and that if extra is not Z_NULL, that extra_len bytes are available there. If hcrc is true, a gzip header crc is included. Note that the current versions of the command-line version of gzip (up through version 1.3.x) do not support header crc's, and will report that it is a "multi-part gzip file" and give up. If deflateSetHeader is not used, the default gzip header has text false, the time set to zero, and os set to 255, with no extra, name, or comment fields. The gzip header is returned to the default state by deflateReset(). deflateSetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source stream state was inconsistent. */ /* ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm, int windowBits)); This is another version of inflateInit with an extra parameter. The fields next_in, avail_in, zalloc, zfree and opaque must be initialized before by the caller. The windowBits parameter is the base two logarithm of the maximum window size (the size of the history buffer). It should be in the range 8..15 for this version of the library. The default value is 15 if inflateInit is used instead. windowBits must be greater than or equal to the windowBits value provided to deflateInit2() while compressing, or it must be equal to 15 if deflateInit2() was not used. If a compressed stream with a larger window size is given as input, inflate() will return with the error code Z_DATA_ERROR instead of trying to allocate a larger window. windowBits can also be -8..-15 for raw inflate. In this case, -windowBits determines the window size. inflate() will then process raw deflate data, not looking for a zlib or gzip header, not generating a check value, and not looking for any check values for comparison at the end of the stream. This is for use with other formats that use the deflate compressed data format such as zip. Those formats provide their own check values. If a custom format is developed using the raw deflate format for compressed data, it is recommended that a check value such as an adler32 or a crc32 be applied to the uncompressed data as is done in the zlib, gzip, and zip formats. For most applications, the zlib format should be used as is. Note that comments above on the use in deflateInit2() applies to the magnitude of windowBits. windowBits can also be greater than 15 for optional gzip decoding. Add 32 to windowBits to enable zlib and gzip decoding with automatic header detection, or add 16 to decode only the gzip format (the zlib format will return a Z_DATA_ERROR). If a gzip stream is being decoded, strm->adler is a crc32 instead of an adler32. inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough memory, Z_STREAM_ERROR if a parameter is invalid (such as a null strm). msg is set to null if there is no error message. inflateInit2 does not perform any decompression apart from reading the zlib header if present: this will be done by inflate(). (So next_in and avail_in may be modified, but next_out and avail_out are unchanged.) */ ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm, const Bytef *dictionary, uInt dictLength)); /* Initializes the decompression dictionary from the given uncompressed byte sequence. This function must be called immediately after a call of inflate, if that call returned Z_NEED_DICT. The dictionary chosen by the compressor can be determined from the adler32 value returned by that call of inflate. The compressor and decompressor must use exactly the same dictionary (see deflateSetDictionary). For raw inflate, this function can be called immediately after inflateInit2() or inflateReset() and before any call of inflate() to set the dictionary. The application must insure that the dictionary that was used for compression is provided. inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a parameter is invalid (such as NULL dictionary) or the stream state is inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the expected one (incorrect adler32 value). inflateSetDictionary does not perform any decompression: this will be done by subsequent calls of inflate(). */ ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm)); /* Skips invalid compressed data until a full flush point (see above the description of deflate with Z_FULL_FLUSH) can be found, or until all available input is skipped. No output is provided. inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR if no more input was provided, Z_DATA_ERROR if no flush point has been found, or Z_STREAM_ERROR if the stream structure was inconsistent. In the success case, the application may save the current current value of total_in which indicates where valid compressed data was found. In the error case, the application may repeatedly call inflateSync, providing more input each time, until success or end of the input data. */ ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest, z_streamp source)); /* Sets the destination stream as a complete copy of the source stream. This function can be useful when randomly accessing a large stream. The first pass through the stream can periodically record the inflate state, allowing restarting inflate at those points when randomly accessing the stream. inflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not enough memory, Z_STREAM_ERROR if the source stream state was inconsistent (such as zalloc being NULL). msg is left unchanged in both source and destination. */ ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm)); /* This function is equivalent to inflateEnd followed by inflateInit, but does not free and reallocate all the internal decompression state. The stream will keep attributes that may have been set by inflateInit2. inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source stream state was inconsistent (such as zalloc or state being NULL). */ ZEXTERN int ZEXPORT inflatePrime OF((z_streamp strm, int bits, int value)); /* This function inserts bits in the inflate input stream. The intent is that this function is used to start inflating at a bit position in the middle of a byte. The provided bits will be used before any bytes are used from next_in. This function should only be used with raw inflate, and should be used before the first inflate() call after inflateInit2() or inflateReset(). bits must be less than or equal to 16, and that many of the least significant bits of value will be inserted in the input. inflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source stream state was inconsistent. */ ZEXTERN int ZEXPORT inflateGetHeader OF((z_streamp strm, gz_headerp head)); /* inflateGetHeader() requests that gzip header information be stored in the provided gz_header structure. inflateGetHeader() may be called after inflateInit2() or inflateReset(), and before the first call of inflate(). As inflate() processes the gzip stream, head->done is zero until the header is completed, at which time head->done is set to one. If a zlib stream is being decoded, then head->done is set to -1 to indicate that there will be no gzip header information forthcoming. Note that Z_BLOCK can be used to force inflate() to return immediately after header processing is complete and before any actual data is decompressed. The text, time, xflags, and os fields are filled in with the gzip header contents. hcrc is set to true if there is a header CRC. (The header CRC was valid if done is set to one.) If extra is not Z_NULL, then extra_max contains the maximum number of bytes to write to extra. Once done is true, extra_len contains the actual extra field length, and extra contains the extra field, or that field truncated if extra_max is less than extra_len. If name is not Z_NULL, then up to name_max characters are written there, terminated with a zero unless the length is greater than name_max. If comment is not Z_NULL, then up to comm_max characters are written there, terminated with a zero unless the length is greater than comm_max. When any of extra, name, or comment are not Z_NULL and the respective field is not present in the header, then that field is set to Z_NULL to signal its absence. This allows the use of deflateSetHeader() with the returned structure to duplicate the header. However if those fields are set to allocated memory, then the application will need to save those pointers elsewhere so that they can be eventually freed. If inflateGetHeader is not used, then the header information is simply discarded. The header is always checked for validity, including the header CRC if present. inflateReset() will reset the process to discard the header information. The application would need to call inflateGetHeader() again to retrieve the header from the next gzip stream. inflateGetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source stream state was inconsistent. */ /* ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits, unsigned char FAR *window)); Initialize the internal stream state for decompression using inflateBack() calls. The fields zalloc, zfree and opaque in strm must be initialized before the call. If zalloc and zfree are Z_NULL, then the default library- derived memory allocation routines are used. windowBits is the base two logarithm of the window size, in the range 8..15. window is a caller supplied buffer of that size. Except for special applications where it is assured that deflate was used with small window sizes, windowBits must be 15 and a 32K byte window must be supplied to be able to decompress general deflate streams. See inflateBack() for the usage of these routines. inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of the paramaters are invalid, Z_MEM_ERROR if the internal state could not be allocated, or Z_VERSION_ERROR if the version of the library does not match the version of the header file. */ typedef unsigned (*in_func) OF((void FAR *, unsigned char FAR * FAR *)); typedef int (*out_func) OF((void FAR *, unsigned char FAR *, unsigned)); ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm, in_func in, void FAR *in_desc, out_func out, void FAR *out_desc)); /* inflateBack() does a raw inflate with a single call using a call-back interface for input and output. This is more efficient than inflate() for file i/o applications in that it avoids copying between the output and the sliding window by simply making the window itself the output buffer. This function trusts the application to not change the output buffer passed by the output function, at least until inflateBack() returns. inflateBackInit() must be called first to allocate the internal state and to initialize the state with the user-provided window buffer. inflateBack() may then be used multiple times to inflate a complete, raw deflate stream with each call. inflateBackEnd() is then called to free the allocated state. A raw deflate stream is one with no zlib or gzip header or trailer. This routine would normally be used in a utility that reads zip or gzip files and writes out uncompressed files. The utility would decode the header and process the trailer on its own, hence this routine expects only the raw deflate stream to decompress. This is different from the normal behavior of inflate(), which expects either a zlib or gzip header and trailer around the deflate stream. inflateBack() uses two subroutines supplied by the caller that are then called by inflateBack() for input and output. inflateBack() calls those routines until it reads a complete deflate stream and writes out all of the uncompressed data, or until it encounters an error. The function's parameters and return types are defined above in the in_func and out_func typedefs. inflateBack() will call in(in_desc, &buf) which should return the number of bytes of provided input, and a pointer to that input in buf. If there is no input available, in() must return zero--buf is ignored in that case--and inflateBack() will return a buffer error. inflateBack() will call out(out_desc, buf, len) to write the uncompressed data buf[0..len-1]. out() should return zero on success, or non-zero on failure. If out() returns non-zero, inflateBack() will return with an error. Neither in() nor out() are permitted to change the contents of the window provided to inflateBackInit(), which is also the buffer that out() uses to write from. The length written by out() will be at most the window size. Any non-zero amount of input may be provided by in(). For convenience, inflateBack() can be provided input on the first call by setting strm->next_in and strm->avail_in. If that input is exhausted, then in() will be called. Therefore strm->next_in must be initialized before calling inflateBack(). If strm->next_in is Z_NULL, then in() will be called immediately for input. If strm->next_in is not Z_NULL, then strm->avail_in must also be initialized, and then if strm->avail_in is not zero, input will initially be taken from strm->next_in[0 .. strm->avail_in - 1]. The in_desc and out_desc parameters of inflateBack() is passed as the first parameter of in() and out() respectively when they are called. These descriptors can be optionally used to pass any information that the caller- supplied in() and out() functions need to do their job. On return, inflateBack() will set strm->next_in and strm->avail_in to pass back any unused input that was provided by the last in() call. The return values of inflateBack() can be Z_STREAM_END on success, Z_BUF_ERROR if in() or out() returned an error, Z_DATA_ERROR if there was a format error in the deflate stream (in which case strm->msg is set to indicate the nature of the error), or Z_STREAM_ERROR if the stream was not properly initialized. In the case of Z_BUF_ERROR, an input or output error can be distinguished using strm->next_in which will be Z_NULL only if in() returned an error. If strm->next is not Z_NULL, then the Z_BUF_ERROR was due to out() returning non-zero. (in() will always be called before out(), so strm->next_in is assured to be defined if out() returns non-zero.) Note that inflateBack() cannot return Z_OK. */ ZEXTERN int ZEXPORT inflateBackEnd OF((z_streamp strm)); /* All memory allocated by inflateBackInit() is freed. inflateBackEnd() returns Z_OK on success, or Z_STREAM_ERROR if the stream state was inconsistent. */ ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void)); /* Return flags indicating compile-time options. Type sizes, two bits each, 00 = 16 bits, 01 = 32, 10 = 64, 11 = other: 1.0: size of uInt 3.2: size of uLong 5.4: size of voidpf (pointer) 7.6: size of z_off_t Compiler, assembler, and debug options: 8: DEBUG 9: ASMV or ASMINF -- use ASM code 10: ZLIB_WINAPI -- exported functions use the WINAPI calling convention 11: 0 (reserved) One-time table building (smaller code, but not thread-safe if true): 12: BUILDFIXED -- build static block decoding tables when needed 13: DYNAMIC_CRC_TABLE -- build CRC calculation tables when needed 14,15: 0 (reserved) Library content (indicates missing functionality): 16: NO_GZCOMPRESS -- gz* functions cannot compress (to avoid linking deflate code when not needed) 17: NO_GZIP -- deflate can't write gzip streams, and inflate can't detect and decode gzip streams (to avoid linking crc code) 18-19: 0 (reserved) Operation variations (changes in library functionality): 20: PKZIP_BUG_WORKAROUND -- slightly more permissive inflate 21: FASTEST -- deflate algorithm with only one, lowest compression level 22,23: 0 (reserved) The sprintf variant used by gzprintf (zero is best): 24: 0 = vs*, 1 = s* -- 1 means limited to 20 arguments after the format 25: 0 = *nprintf, 1 = *printf -- 1 means gzprintf() not secure! 26: 0 = returns value, 1 = void -- 1 means inferred string length returned Remainder: 27-31: 0 (reserved) */ /* utility functions */ /* The following utility functions are implemented on top of the basic stream-oriented functions. To simplify the interface, some default options are assumed (compression level and memory usage, standard memory allocation functions). The source code of these utility functions can easily be modified if you need special options. */ ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen)); /* Compresses the source buffer into the destination buffer. sourceLen is the byte length of the source buffer. Upon entry, destLen is the total size of the destination buffer, which must be at least the value returned by compressBound(sourceLen). Upon exit, destLen is the actual size of the compressed buffer. This function can be used to compress a whole file at once if the input file is mmap'ed. compress returns Z_OK if success, Z_MEM_ERROR if there was not enough memory, Z_BUF_ERROR if there was not enough room in the output buffer. */ ZEXTERN int ZEXPORT compress2 OF((Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen, int level)); /* Compresses the source buffer into the destination buffer. The level parameter has the same meaning as in deflateInit. sourceLen is the byte length of the source buffer. Upon entry, destLen is the total size of the destination buffer, which must be at least the value returned by compressBound(sourceLen). Upon exit, destLen is the actual size of the compressed buffer. compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough memory, Z_BUF_ERROR if there was not enough room in the output buffer, Z_STREAM_ERROR if the level parameter is invalid. */ ZEXTERN uLong ZEXPORT compressBound OF((uLong sourceLen)); /* compressBound() returns an upper bound on the compressed size after compress() or compress2() on sourceLen bytes. It would be used before a compress() or compress2() call to allocate the destination buffer. */ ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen)); /* Decompresses the source buffer into the destination buffer. sourceLen is the byte length of the source buffer. Upon entry, destLen is the total size of the destination buffer, which must be large enough to hold the entire uncompressed data. (The size of the uncompressed data must have been saved previously by the compressor and transmitted to the decompressor by some mechanism outside the scope of this compression library.) Upon exit, destLen is the actual size of the compressed buffer. This function can be used to decompress a whole file at once if the input file is mmap'ed. uncompress returns Z_OK if success, Z_MEM_ERROR if there was not enough memory, Z_BUF_ERROR if there was not enough room in the output buffer, or Z_DATA_ERROR if the input data was corrupted or incomplete. */ typedef voidp gzFile; ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode)); /* Opens a gzip (.gz) file for reading or writing. The mode parameter is as in fopen ("rb" or "wb") but can also include a compression level ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for Huffman only compression as in "wb1h", or 'R' for run-length encoding as in "wb1R". (See the description of deflateInit2 for more information about the strategy parameter.) gzopen can be used to read a file which is not in gzip format; in this case gzread will directly read from the file without decompression. gzopen returns NULL if the file could not be opened or if there was insufficient memory to allocate the (de)compression state; errno can be checked to distinguish the two cases (if errno is zero, the zlib error is Z_MEM_ERROR). */ ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode)); /* gzdopen() associates a gzFile with the file descriptor fd. File descriptors are obtained from calls like open, dup, creat, pipe or fileno (in the file has been previously opened with fopen). The mode parameter is as in gzopen. The next call of gzclose on the returned gzFile will also close the file descriptor fd, just like fclose(fdopen(fd), mode) closes the file descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode). gzdopen returns NULL if there was insufficient memory to allocate the (de)compression state. */ ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy)); /* Dynamically update the compression level or strategy. See the description of deflateInit2 for the meaning of these parameters. gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not opened for writing. */ ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len)); /* Reads the given number of uncompressed bytes from the compressed file. If the input file was not in gzip format, gzread copies the given number of bytes into the buffer. gzread returns the number of uncompressed bytes actually read (0 for end of file, -1 for error). */ ZEXTERN int ZEXPORT gzwrite OF((gzFile file, voidpc buf, unsigned len)); /* Writes the given number of uncompressed bytes into the compressed file. gzwrite returns the number of uncompressed bytes actually written (0 in case of error). */ ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...)); /* Converts, formats, and writes the args to the compressed file under control of the format string, as in fprintf. gzprintf returns the number of uncompressed bytes actually written (0 in case of error). The number of uncompressed bytes written is limited to 4095. The caller should assure that this limit is not exceeded. If it is exceeded, then gzprintf() will return return an error (0) with nothing written. In this case, there may also be a buffer overflow with unpredictable consequences, which is possible only if zlib was compiled with the insecure functions sprintf() or vsprintf() because the secure snprintf() or vsnprintf() functions were not available. */ ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s)); /* Writes the given null-terminated string to the compressed file, excluding the terminating null character. gzputs returns the number of characters written, or -1 in case of error. */ ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len)); /* Reads bytes from the compressed file until len-1 characters are read, or a newline character is read and transferred to buf, or an end-of-file condition is encountered. The string is then terminated with a null character. gzgets returns buf, or Z_NULL in case of error. */ ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c)); /* Writes c, converted to an unsigned char, into the compressed file. gzputc returns the value that was written, or -1 in case of error. */ ZEXTERN int ZEXPORT gzgetc OF((gzFile file)); /* Reads one byte from the compressed file. gzgetc returns this byte or -1 in case of end of file or error. */ ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file)); /* Push one character back onto the stream to be read again later. Only one character of push-back is allowed. gzungetc() returns the character pushed, or -1 on failure. gzungetc() will fail if a character has been pushed but not read yet, or if c is -1. The pushed character will be discarded if the stream is repositioned with gzseek() or gzrewind(). */ ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush)); /* Flushes all pending output into the compressed file. The parameter flush is as in the deflate() function. The return value is the zlib error number (see function gzerror below). gzflush returns Z_OK if the flush parameter is Z_FINISH and all output could be flushed. gzflush should be called only when strictly necessary because it can degrade compression. */ ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file, z_off_t offset, int whence)); /* Sets the starting position for the next gzread or gzwrite on the given compressed file. The offset represents a number of bytes in the uncompressed data stream. The whence parameter is defined as in lseek(2); the value SEEK_END is not supported. If the file is opened for reading, this function is emulated but can be extremely slow. If the file is opened for writing, only forward seeks are supported; gzseek then compresses a sequence of zeroes up to the new starting position. gzseek returns the resulting offset location as measured in bytes from the beginning of the uncompressed stream, or -1 in case of error, in particular if the file is opened for writing and the new starting position would be before the current position. */ ZEXTERN int ZEXPORT gzrewind OF((gzFile file)); /* Rewinds the given file. This function is supported only for reading. gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET) */ ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file)); /* Returns the starting position for the next gzread or gzwrite on the given compressed file. This position represents a number of bytes in the uncompressed data stream. gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR) */ ZEXTERN int ZEXPORT gzeof OF((gzFile file)); /* Returns 1 when EOF has previously been detected reading the given input stream, otherwise zero. */ ZEXTERN int ZEXPORT gzdirect OF((gzFile file)); /* Returns 1 if file is being read directly without decompression, otherwise zero. */ ZEXTERN int ZEXPORT gzclose OF((gzFile file)); /* Flushes all pending output if necessary, closes the compressed file and deallocates all the (de)compression state. The return value is the zlib error number (see function gzerror below). */ ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum)); /* Returns the error message for the last error which occurred on the given compressed file. errnum is set to zlib error number. If an error occurred in the file system and not in the compression library, errnum is set to Z_ERRNO and the application may consult errno to get the exact error code. */ ZEXTERN void ZEXPORT gzclearerr OF((gzFile file)); /* Clears the error and end-of-file flags for file. This is analogous to the clearerr() function in stdio. This is useful for continuing to read a gzip file that is being written concurrently. */ /* checksum functions */ /* These functions are not related to compression but are exported anyway because they might be useful in applications using the compression library. */ ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len)); /* Update a running Adler-32 checksum with the bytes buf[0..len-1] and return the updated checksum. If buf is NULL, this function returns the required initial value for the checksum. An Adler-32 checksum is almost as reliable as a CRC32 but can be computed much faster. Usage example: uLong adler = adler32(0L, Z_NULL, 0); while (read_buffer(buffer, length) != EOF) { adler = adler32(adler, buffer, length); } if (adler != original_adler) error(); */ ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2, z_off_t len2)); /* Combine two Adler-32 checksums into one. For two sequences of bytes, seq1 and seq2 with lengths len1 and len2, Adler-32 checksums were calculated for each, adler1 and adler2. adler32_combine() returns the Adler-32 checksum of seq1 and seq2 concatenated, requiring only adler1, adler2, and len2. */ ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len)); /* Update a running CRC-32 with the bytes buf[0..len-1] and return the updated CRC-32. If buf is NULL, this function returns the required initial value for the for the crc. Pre- and post-conditioning (one's complement) is performed within this function so it shouldn't be done by the application. Usage example: uLong crc = crc32(0L, Z_NULL, 0); while (read_buffer(buffer, length) != EOF) { crc = crc32(crc, buffer, length); } if (crc != original_crc) error(); */ ZEXTERN uLong ZEXPORT crc32_combine OF((uLong crc1, uLong crc2, z_off_t len2)); /* Combine two CRC-32 check values into one. For two sequences of bytes, seq1 and seq2 with lengths len1 and len2, CRC-32 check values were calculated for each, crc1 and crc2. crc32_combine() returns the CRC-32 check value of seq1 and seq2 concatenated, requiring only crc1, crc2, and len2. */ /* various hacks, don't look :) */ /* deflateInit and inflateInit are macros to allow checking the zlib version * and the compiler's view of z_stream: */ ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level, const char *version, int stream_size)); ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm, const char *version, int stream_size)); ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int level, int method, int windowBits, int memLevel, int strategy, const char *version, int stream_size)); ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int windowBits, const char *version, int stream_size)); ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits, unsigned char FAR *window, const char *version, int stream_size)); #define deflateInit(strm, level) \ deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream)) #define inflateInit(strm) \ inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream)) #define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \ deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\ (strategy), ZLIB_VERSION, sizeof(z_stream)) #define inflateInit2(strm, windowBits) \ inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream)) #define inflateBackInit(strm, windowBits, window) \ inflateBackInit_((strm), (windowBits), (window), \ ZLIB_VERSION, sizeof(z_stream)) #if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL) struct internal_state {int dummy;}; /* hack for buggy compilers */ #endif ZEXTERN const char * ZEXPORT zError OF((int)); ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp z)); ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void)); #ifdef __cplusplus } #endif #endif /* ZLIB_H */ unalz/zlib/zutil.c00007000001040€ÿÿÿÿ0000001643610404306311016740 0ustar Administrators????????/* zutil.c -- target dependent utility functions for the compression library * Copyright (C) 1995-2005 Jean-loup Gailly. * For conditions of distribution and use, see copyright notice in zlib.h */ /* @(#) $Id$ */ #include "zutil.h" #ifndef NO_DUMMY_DECL struct internal_state {int dummy;}; /* for buggy compilers */ #endif const char * const z_errmsg[10] = { "need dictionary", /* Z_NEED_DICT 2 */ "stream end", /* Z_STREAM_END 1 */ "", /* Z_OK 0 */ "file error", /* Z_ERRNO (-1) */ "stream error", /* Z_STREAM_ERROR (-2) */ "data error", /* Z_DATA_ERROR (-3) */ "insufficient memory", /* Z_MEM_ERROR (-4) */ "buffer error", /* Z_BUF_ERROR (-5) */ "incompatible version",/* Z_VERSION_ERROR (-6) */ ""}; const char * ZEXPORT zlibVersion() { return ZLIB_VERSION; } uLong ZEXPORT zlibCompileFlags() { uLong flags; flags = 0; switch (sizeof(uInt)) { case 2: break; case 4: flags += 1; break; case 8: flags += 2; break; default: flags += 3; } switch (sizeof(uLong)) { case 2: break; case 4: flags += 1 << 2; break; case 8: flags += 2 << 2; break; default: flags += 3 << 2; } switch (sizeof(voidpf)) { case 2: break; case 4: flags += 1 << 4; break; case 8: flags += 2 << 4; break; default: flags += 3 << 4; } switch (sizeof(z_off_t)) { case 2: break; case 4: flags += 1 << 6; break; case 8: flags += 2 << 6; break; default: flags += 3 << 6; } #ifdef DEBUG flags += 1 << 8; #endif #if defined(ASMV) || defined(ASMINF) flags += 1 << 9; #endif #ifdef ZLIB_WINAPI flags += 1 << 10; #endif #ifdef BUILDFIXED flags += 1 << 12; #endif #ifdef DYNAMIC_CRC_TABLE flags += 1 << 13; #endif #ifdef NO_GZCOMPRESS flags += 1L << 16; #endif #ifdef NO_GZIP flags += 1L << 17; #endif #ifdef PKZIP_BUG_WORKAROUND flags += 1L << 20; #endif #ifdef FASTEST flags += 1L << 21; #endif #ifdef STDC # ifdef NO_vsnprintf flags += 1L << 25; # ifdef HAS_vsprintf_void flags += 1L << 26; # endif # else # ifdef HAS_vsnprintf_void flags += 1L << 26; # endif # endif #else flags += 1L << 24; # ifdef NO_snprintf flags += 1L << 25; # ifdef HAS_sprintf_void flags += 1L << 26; # endif # else # ifdef HAS_snprintf_void flags += 1L << 26; # endif # endif #endif return flags; } #ifdef DEBUG # ifndef verbose # define verbose 0 # endif int z_verbose = verbose; void z_error (m) char *m; { fprintf(stderr, "%s\n", m); exit(1); } #endif /* exported to allow conversion of error code to string for compress() and * uncompress() */ const char * ZEXPORT zError(err) int err; { return ERR_MSG(err); } #if defined(_WIN32_WCE) /* The Microsoft C Run-Time Library for Windows CE doesn't have * errno. We define it as a global variable to simplify porting. * Its value is always 0 and should not be used. */ int errno = 0; #endif #ifndef HAVE_MEMCPY void zmemcpy(dest, source, len) Bytef* dest; const Bytef* source; uInt len; { if (len == 0) return; do { *dest++ = *source++; /* ??? to be unrolled */ } while (--len != 0); } int zmemcmp(s1, s2, len) const Bytef* s1; const Bytef* s2; uInt len; { uInt j; for (j = 0; j < len; j++) { if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1; } return 0; } void zmemzero(dest, len) Bytef* dest; uInt len; { if (len == 0) return; do { *dest++ = 0; /* ??? to be unrolled */ } while (--len != 0); } #endif #ifdef SYS16BIT #ifdef __TURBOC__ /* Turbo C in 16-bit mode */ # define MY_ZCALLOC /* Turbo C malloc() does not allow dynamic allocation of 64K bytes * and farmalloc(64K) returns a pointer with an offset of 8, so we * must fix the pointer. Warning: the pointer must be put back to its * original form in order to free it, use zcfree(). */ #define MAX_PTR 10 /* 10*64K = 640K */ local int next_ptr = 0; typedef struct ptr_table_s { voidpf org_ptr; voidpf new_ptr; } ptr_table; local ptr_table table[MAX_PTR]; /* This table is used to remember the original form of pointers * to large buffers (64K). Such pointers are normalized with a zero offset. * Since MSDOS is not a preemptive multitasking OS, this table is not * protected from concurrent access. This hack doesn't work anyway on * a protected system like OS/2. Use Microsoft C instead. */ voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) { voidpf buf = opaque; /* just to make some compilers happy */ ulg bsize = (ulg)items*size; /* If we allocate less than 65520 bytes, we assume that farmalloc * will return a usable pointer which doesn't have to be normalized. */ if (bsize < 65520L) { buf = farmalloc(bsize); if (*(ush*)&buf != 0) return buf; } else { buf = farmalloc(bsize + 16L); } if (buf == NULL || next_ptr >= MAX_PTR) return NULL; table[next_ptr].org_ptr = buf; /* Normalize the pointer to seg:0 */ *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4; *(ush*)&buf = 0; table[next_ptr++].new_ptr = buf; return buf; } void zcfree (voidpf opaque, voidpf ptr) { int n; if (*(ush*)&ptr != 0) { /* object < 64K */ farfree(ptr); return; } /* Find the original pointer */ for (n = 0; n < next_ptr; n++) { if (ptr != table[n].new_ptr) continue; farfree(table[n].org_ptr); while (++n < next_ptr) { table[n-1] = table[n]; } next_ptr--; return; } ptr = opaque; /* just to make some compilers happy */ Assert(0, "zcfree: ptr not found"); } #endif /* __TURBOC__ */ #ifdef M_I86 /* Microsoft C in 16-bit mode */ # define MY_ZCALLOC #if (!defined(_MSC_VER) || (_MSC_VER <= 600)) # define _halloc halloc # define _hfree hfree #endif voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) { if (opaque) opaque = 0; /* to make compiler happy */ return _halloc((long)items, size); } void zcfree (voidpf opaque, voidpf ptr) { if (opaque) opaque = 0; /* to make compiler happy */ _hfree(ptr); } #endif /* M_I86 */ #endif /* SYS16BIT */ #ifndef MY_ZCALLOC /* Any system without a special alloc function */ #ifndef STDC extern voidp malloc OF((uInt size)); extern voidp calloc OF((uInt items, uInt size)); extern void free OF((voidpf ptr)); #endif voidpf zcalloc (opaque, items, size) voidpf opaque; unsigned items; unsigned size; { if (opaque) items += size - size; /* make compiler happy */ return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) : (voidpf)calloc(items, size); } void zcfree (opaque, ptr) voidpf opaque; voidpf ptr; { free(ptr); if (opaque) return; /* make compiler happy */ } #endif /* MY_ZCALLOC */ unalz/zlib/zutil.h00007000001040€ÿÿÿÿ0000001573010404306311016741 0ustar Administrators????????/* zutil.h -- internal interface and configuration of the compression library * Copyright (C) 1995-2005 Jean-loup Gailly. * For conditions of distribution and use, see copyright notice in zlib.h */ /* WARNING: this file should *not* be used by applications. It is part of the implementation of the compression library and is subject to change. Applications should only use zlib.h. */ /* @(#) $Id$ */ #ifndef ZUTIL_H #define ZUTIL_H #define ZLIB_INTERNAL #include "zlib.h" #ifdef STDC # ifndef _WIN32_WCE # include # endif # include # include #endif #ifdef NO_ERRNO_H # ifdef _WIN32_WCE /* The Microsoft C Run-Time Library for Windows CE doesn't have * errno. We define it as a global variable to simplify porting. * Its value is always 0 and should not be used. We rename it to * avoid conflict with other libraries that use the same workaround. */ # define errno z_errno # endif extern int errno; #else # ifndef _WIN32_WCE # include # endif #endif #ifndef local # define local static #endif /* compile with -Dlocal if your debugger can't find static symbols */ typedef unsigned char uch; typedef uch FAR uchf; typedef unsigned short ush; typedef ush FAR ushf; typedef unsigned long ulg; extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ /* (size given to avoid silly warnings with Visual C++) */ #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] #define ERR_RETURN(strm,err) \ return (strm->msg = (char*)ERR_MSG(err), (err)) /* To be used only when the state is known to be valid */ /* common constants */ #ifndef DEF_WBITS # define DEF_WBITS MAX_WBITS #endif /* default windowBits for decompression. MAX_WBITS is for compression only */ #if MAX_MEM_LEVEL >= 8 # define DEF_MEM_LEVEL 8 #else # define DEF_MEM_LEVEL MAX_MEM_LEVEL #endif /* default memLevel */ #define STORED_BLOCK 0 #define STATIC_TREES 1 #define DYN_TREES 2 /* The three kinds of block type */ #define MIN_MATCH 3 #define MAX_MATCH 258 /* The minimum and maximum match lengths */ #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ /* target dependencies */ #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) # define OS_CODE 0x00 # if defined(__TURBOC__) || defined(__BORLANDC__) # if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) /* Allow compilation with ANSI keywords only enabled */ void _Cdecl farfree( void *block ); void *_Cdecl farmalloc( unsigned long nbytes ); # else # include # endif # else /* MSC or DJGPP */ # include # endif #endif #ifdef AMIGA # define OS_CODE 0x01 #endif #if defined(VAXC) || defined(VMS) # define OS_CODE 0x02 # define F_OPEN(name, mode) \ fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") #endif #if defined(ATARI) || defined(atarist) # define OS_CODE 0x05 #endif #ifdef OS2 # define OS_CODE 0x06 # ifdef M_I86 #include # endif #endif #if defined(MACOS) || defined(TARGET_OS_MAC) # define OS_CODE 0x07 # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os # include /* for fdopen */ # else # ifndef fdopen # define fdopen(fd,mode) NULL /* No fdopen() */ # endif # endif #endif #ifdef TOPS20 # define OS_CODE 0x0a #endif #ifdef WIN32 # ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */ # define OS_CODE 0x0b # endif #endif #ifdef __50SERIES /* Prime/PRIMOS */ # define OS_CODE 0x0f #endif #if defined(_BEOS_) || defined(RISCOS) # define fdopen(fd,mode) NULL /* No fdopen() */ #endif #if (defined(_MSC_VER) && (_MSC_VER > 600)) # if defined(_WIN32_WCE) # define fdopen(fd,mode) NULL /* No fdopen() */ # ifndef _PTRDIFF_T_DEFINED typedef int ptrdiff_t; # define _PTRDIFF_T_DEFINED # endif # else # define fdopen(fd,type) _fdopen(fd,type) # endif #endif /* common defaults */ #ifndef OS_CODE # define OS_CODE 0x03 /* assume Unix */ #endif #ifndef F_OPEN # define F_OPEN(name, mode) fopen((name), (mode)) #endif /* functions */ #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550) # ifndef HAVE_VSNPRINTF # define HAVE_VSNPRINTF # endif #endif #if defined(__CYGWIN__) # ifndef HAVE_VSNPRINTF # define HAVE_VSNPRINTF # endif #endif #ifndef HAVE_VSNPRINTF # ifdef MSDOS /* vsnprintf may exist on some MS-DOS compilers (DJGPP?), but for now we just assume it doesn't. */ # define NO_vsnprintf # endif # ifdef __TURBOC__ # define NO_vsnprintf # endif # ifdef WIN32 /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */ # if !defined(vsnprintf) && !defined(NO_vsnprintf) # define vsnprintf _vsnprintf # endif # endif # ifdef __SASC # define NO_vsnprintf # endif #endif #ifdef VMS # define NO_vsnprintf #endif #if defined(pyr) # define NO_MEMCPY #endif #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) /* Use our own functions for small and medium model with MSC <= 5.0. * You may have to use the same strategy for Borland C (untested). * The __SC__ check is for Symantec. */ # define NO_MEMCPY #endif #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) # define HAVE_MEMCPY #endif #ifdef HAVE_MEMCPY # ifdef SMALL_MEDIUM /* MSDOS small or medium model */ # define zmemcpy _fmemcpy # define zmemcmp _fmemcmp # define zmemzero(dest, len) _fmemset(dest, 0, len) # else # define zmemcpy memcpy # define zmemcmp memcmp # define zmemzero(dest, len) memset(dest, 0, len) # endif #else extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); extern void zmemzero OF((Bytef* dest, uInt len)); #endif /* Diagnostic functions */ #ifdef DEBUG # include extern int z_verbose; extern void z_error OF((char *m)); # define Assert(cond,msg) {if(!(cond)) z_error(msg);} # define Trace(x) {if (z_verbose>=0) fprintf x ;} # define Tracev(x) {if (z_verbose>0) fprintf x ;} # define Tracevv(x) {if (z_verbose>1) fprintf x ;} # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} #else # define Assert(cond,msg) # define Trace(x) # define Tracev(x) # define Tracevv(x) # define Tracec(c,x) # define Tracecv(c,x) #endif voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); void zcfree OF((voidpf opaque, voidpf ptr)); #define ZALLOC(strm, items, size) \ (*((strm)->zalloc))((strm)->opaque, (items), (size)) #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) #define TRY_FREE(s, p) {if (p) ZFREE(s, p);} #endif /* ZUTIL_H */