cmdpack-1.03-src/ 0000755 0001750 0001750 00000000000 11731303760 013537 5 ustar corlett corlett cmdpack-1.03-src/doc/ 0000755 0001750 0001750 00000000000 11731303760 014304 5 ustar corlett corlett cmdpack-1.03-src/doc/cmdpack.txt 0000644 0001750 0001750 00000031270 11731303760 016452 0 ustar corlett corlett --------------------------------------------------------------------------------
Command-Line Pack v1.03
Copyright (C) 1996-2011 Neill Corlett
http://www.neillcorlett.com/cmdpack/
--------------------------------------------------------------------------------
This is a collection of command-line tools I've written over the years that I
decided to clean up and repackage. All of the tools are released under the
terms of the GNU General Public License version 3.
--------------------------------------------------------------------------------
Contents
--------------------------------------------------------------------------------
bin2iso - Convert CD .BIN to .ISO
---------------------------------
Converts CD-ROM .BIN images (including full 2352-byte sectors) into .ISO format
(2048-byte sectors). Automatically detects mode 1 or 2. Will warn if there are
any form 2 sectors, which are not convertible.
Usage: bin2iso [-f] input_file output_file
-f: Force conversion and bypass checks
bincomp - Compare binary files
------------------------------
Similar to the old DOS "FC /B" command. The default output is a side-by-side
table showing 16 bytes per line. The "-l" flag will show one byte per line.
Usage: bincomp file1 file2 [-l]
-l Use long format
brrrip - Rip SNES BRR sound samples
-----------------------------------
Automatically detects and rips sound samples from SNES ROMs. Works great with
uncompressed .SPC files too.
Usage: brrrip romfile [samplerate [minblocks]]
"samplerate" should be given in Hz. Samples will only be detected if they are at
least "minblocks" long (default=50). The output files will be named
(hex address).wav.
byteshuf - Shuffle or unshuffle bytes in a file
-----------------------------------------------
Divides a file into its interleaved even/odd bytes, or recombines them. Can also
divide every 3rd, 4th, etc. byte, depending on how many subfiles you specify.
Useful for dealing with certain types of ROM images.
Usage:
To unshuffle: byteshuf [-o] -u source [subfiles...]
To shuffle: byteshuf [-o] -s destination [subfiles...]
Options:
-o Force overwrite
For example, "byteshuf -u abc def0 def1" will split all the even bytes from
"abc" into "def0", and the odd bytes into "def1".
byteswap - Swap byte order of files
-----------------------------------
Swaps the byte order of each record in a file, in place. If the record size is
2, this means every even and odd byte is swapped, but the record size can also
be larger than 2. Useful for dealing with certain types of ROM images.
Usage: byteswap [-q] [-s recordsize] files...
-q: Quiet
-s: Size, in bytes, of each record to swap (default: 2)
cdpatch - CD-XA image insert/extract utility
--------------------------------------------
Inserts or extracts files in-place into CD-ROM images in either .BIN or .ISO
format. Properly handles CD-XA streams from Mode 2 CDs (Video CDs, PlayStation
movie files, etc.) and patches ECC/EDC data as appropriate.
Usage:
To insert: cdpatch -i bin_or_iso [options] [files...]
To extract: cdpatch -x bin_or_iso [options] [files...]
Options:
-be Favor big-endian values in ISO9660 metadata
-boot Insert or extract boot area
-d dir Set the base directory for inserted or extracted files
(defaults to .)
-f Skip filesystem consistency checks
-le Favor little-endian values in ISO9660 metadata
-o Force overwrite when extracting files
-r Recurse into subdirectories
-v Verbose
By default, cdpatch will attempt to insert or extract every file in the CD
image, the same as if you'd specified "-r ." The "-boot" option will insert or
extract the 32KiB boot sector area to a file named "boot".
Some CD images may have conflicting sets big- and little-endian metadata as a
platform-specific quirk or copy protection scheme; the "-be" and "-le" options
can be used to override this.
Specifying both -f and -v will list all filesystem errors, while still ignoring
them for extraction purposes.
When extracting files via -x, cdpatch preserves file modification times when
possible.
ecm - Encoder/decoder for Error Code Modeler format
---------------------------------------------------
ECM is a compression format for CD images which removes ECC/EDC data where it's
possible to do so losslessly. Compressing a CD image with ECM first, then
compressing the ECM file with a general-purpose compressor such as 7z or RAR,
can result in better compression than 7z or RAR alone.
See http://www.neillcorlett.com/ecm/ for more details.
Usage:
To encode:
ecm cdimagefile
ecm cdimagefile ecmfile
ecm e cdimagefile ecmfile
To decode:
unecm ecmfile
unecm ecmfile cdimagefile
ecm d ecmfile cdimagefile
fakecrc - Fake the CRC32 of a file
----------------------------------
Modifies a file to force it to have a particular CRC32 checksum, by patching 4
consecutive bytes anywhere in the file. Can also obtain the CRC32 checksum of a
file.
Usage:
To obtain the CRC32 of a file:
fakecrc file
To modify the CRC32 of a file:
fakecrc file desired_crc [offset]
The 4 bytes at "offset" will be modified. If no offset is given, the last 4
bytes of the file are used.
hax65816 - Simple 65816 disassembler
------------------------------------
A simple 65c816 disassembler with basic flag following. This is the disassembler
I used for the Seiken Densetsu 3 project, among others.
Usage: hax65816 imagefile start address [length] [options]
Output is written to stdout. All values must be given in hex.
If no length is given, disassembly will stop at the end of the bank.
Options:
-m0 Assume M flag = 0
-m1 Assume M flag = 1 (default)
-x0 Assume X flag = 0 (default)
-x1 Assume X flag = 1
-noreturn Disable flag reset after RTS/RTL/RTI
-noguess Disable flag guess on BRK/COP/WDM/STP
-nofollow Disable REP/SEP following (not recommended)
id3point - Pointless ID3v1 Tagger
---------------------------------
A basic ID3v1 tagger for MP3 files. Probably superseded by newer tools, but
included here nonetheless.
Usage: id3point [options] mp3file(s)
Options:
-t title Set ID3 title -t- Clear ID3 title
-a artist Set ID3 artist -a- Clear ID3 artist
-m album Set ID3 album -m- Clear ID3 album
-y year Set ID3 year -y- Clear ID3 year
-c comment Set ID3 comment -c- Clear ID3 comment
-k track# Set ID3 track # -k- Clear ID3 track #
-g genre# Set ID3 genre # -g- Clear ID3 genre #
-tf Set ID3 title based on the filename
Notes:
- Only ID3v1 tags are supported.
- The track number increments automatically for each additional file.
- The -tf option will turn "Artist - Title.mp3" into "Title", but
be sure to check the titles by hand in case it gets confused.
pecompat - Maximize compatibility of a Win32 PE file
----------------------------------------------------
Patches a Windows 32-bit PE executable file to maximize its compatibility with
older versions of Windows.
- Clears the linker timestamp
- Sets the required OS version and subsystem version to "4.00"
- Recalculates the PE file checksum
- Warns if any Unicode import functions are used
Usage: pecompat pe_exe_file(s)
rels - Relative Searcher
------------------------
Searches for a string in a group of files by comparing the relative difference
between each letter. This allows finding strings in non-ASCII character sets.
Also attempts double values (e.g. 00=A, 02=B, 04=C) and wide values (every other
byte, as in UCS-2). A staple ROM hacking tool.
Usage: rels string files
Search strings may include '.' characters as wildcards, but must include at
least two non-wildcard characters.
screamf - .AMF to .S3M converter
--------------------------------
Converts AMF music files to S3M. AMF was a format used exclusively by Otto
Chrons' DOS Sound and Music Interface (DSMI) library and Dual Module Player.
Various DOS games and demos in the 1990s used this format. AMF files were the
result of running MOD2AMF on an existing S3M or other module; screamf does the
opposite. It's round-trippable for the most part.
Usage: screamf inputfile.amf outputfile.s3m
subfile - Extract a portion of a file
-------------------------------------
Extracts a portion of a file, given a starting offset and length, in bytes.
Offset and length may be specified in C style "0x123" or "0123" notation for
hexadecimal or octal.
Usage: subfile infile offset length outfile
uips - Universal IPS patch create/apply utility
-----------------------------------------------
UIPS is a command-line utility for creating and applying IPS patches. IPS is an
old patch format for binary files, limited to 16 MiB in size, and not to be
confused with the newer UPS format. Multiple source files and IPS v2 truncation
are supported.
Usage:
To create an IPS patch:
uips c patch_file source_file(s) target_file
To apply an IPS patch:
uips a patch_file target_file
For example, "uips c patch.ips file1 file2 file3 file4" will create a patch file
capable of transforming any of file1, file2, or file3 to file4.
usfv - Universal SFV create/verify utility
------------------------------------------
USFV is a utility for creating and verifying SFV (Simple File Verification)
files, such as those created by Win-SFV32. A SFV file contains a list of
filenames and their corresponding CRC32 checksums.
Caveat: CRC32 is not a cryptographic hash and cannot be used to ensure that a
file was not maliciously modified (see fakecrc, above).
Usage:
To create a SFV file: usfv c sfvfile filenames
To verify a SFV file: usfv v sfvfile
vb2rip - VB2 sound format ripping utility
-----------------------------------------
Rips music in .VB2 and various similar formats found in PlayStation and
PlayStation 2 games.
See http://www.neillcorlett.com/vb2rip/ for more details.
Usage: vb2rip [options] inputfile(s)
Options:
-fmt format Specify the input file format
-o path Specify the output filename (if one input file is given)
or specify the output directory (if several are given)
-mono Treat input file as monaural
-stereo Treat input file as stereo
-rate n Specify the sample rate
-interleave n Specify the block interleave size
-skip n Skip this many bytes after each block
-offset n Start at the given offset in the input file
-endflag Stop decoding when the sample end flag is reached
-noendflag Ignore the sample end flag
-maxbytes n Set the maximum number of input bytes to decode
Supported input formats:
Format Description
------------------------------------------------------------
raw Raw data (for experimentation)
vb2 Konami multi-song .BIN/.VB2 file (Dance Dance Revolution, etc.)
8 .8 file (Suikoden)
msa .MSA file (Psyvariar, possibly other PS2 games)
xa2 .XA2 file (Extreme-G 3, possibly other PS2 games)
wordadd - Addition word puzzle solver
-------------------------------------
Finds solutions to letter/digit substitution puzzles of the "WORD + WORD =
OTHER" variety. Supports multiple addends and digits mixed in with letters.
Usage: wordadd words... sum
Examples:
wordadd BEEF BACON MEATS
zerofill - Create a large, empty file
-------------------------------------
Creates a file filled with bytes of value zero. Similar to "dd if=/dev/zero",
except not all platforms have dd, and there's a progress indicator.
Inside a virtual machine, zerofill can be used to create a large dummy file in
order to zero out all the unused sectors before compressing the drive image.
(zerofill is also useful for creating drive images in the first place.)
Usage: zerofill [-f] [-q] size filename
-f: Force overwrite
-q: Quiet
"size" may be specified in C style "0x123" or "0123" notation for hexadecimal or
octal.
--------------------------------------------------------------------------------
Terms of use
--------------------------------------------------------------------------------
All of the programs included in Command-Line Pack are subject to the following
terms of use:
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see .
--------------------------------------------------------------------------------
cmdpack-1.03-src/doc/gpl.txt 0000644 0001750 0001750 00000104513 11731303760 015633 0 ustar corlett corlett GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
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Moreover, your license from a particular copyright holder is
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material under section 10.
9. Acceptance Not Required for Having Copies.
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occurring solely as a consequence of using peer-to-peer transmission
to receive a copy likewise does not require acceptance. However,
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11. Patents.
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work thus licensed is called the contributor's "contributor version".
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Nothing in this License shall be construed as excluding or limiting
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to collect a royalty for further conveying from those to whom you convey
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License would be to refrain entirely from conveying the Program.
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14. Revised Versions of this License.
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17. Interpretation of Sections 15 and 16.
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END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
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the "copyright" line and a pointer to where the full notice is found.
Copyright (C)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see .
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
Copyright (C)
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
.
cmdpack-1.03-src/src/ 0000755 0001750 0001750 00000000000 11731303760 014326 5 ustar corlett corlett cmdpack-1.03-src/src/banner.h 0000644 0001750 0001750 00000004141 11731303760 015744 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
void banner_ok(void) {
printf(TITLE "\n"
" " COPYR "\n"
" from Command-Line Pack "
#include "version.h"
" (%d-bit "
#if defined(__CYGWIN__)
"Windows, Cygwin"
#elif defined(__MINGW32__)
"Windows, MinGW"
#elif defined(_WIN32) && defined(_MSC_VER) && (defined(__alpha) || defined(__ALPHA) || defined(__Alpha_AXP))
"Windows, Digital AXP C"
#elif defined(_WIN32) && defined(_MSC_VER) && defined(_M_ALPHA)
"Windows, Microsoft C, Alpha"
#elif defined(_WIN32) && defined(_MSC_VER) && defined(_M_MRX000)
"Windows, Microsoft C, MIPS"
#elif defined(_WIN32) && defined(_MSC_VER)
"Windows, Microsoft C"
#elif defined(__WIN32__) || defined(_WIN32)
"Windows"
#elif defined(__DJGPP__)
"DOS, DJGPP"
#elif defined(__MSDOS__) && defined(__TURBOC__)
"DOS, Turbo C"
#elif defined(_DOS) && defined(__WATCOMC__)
"DOS, Watcom"
#elif defined(__MSDOS__) || defined(MSDOS) || defined(_DOS)
"DOS"
#elif defined(__APPLE__)
"Mac OS"
#elif defined(__linux) || defined(__linux__) || defined(__gnu_linux__) || defined(linux)
"Linux"
#elif defined(__OpenBSD__)
"OpenBSD"
#elif defined(BSD)
"BSD"
#elif defined(human68k) || defined(HUMAN68K) || defined(__human68k) || defined(__HUMAN68K) || defined(__human68k__) || defined(__HUMAN68K__)
"Human68k"
#elif defined(__unix__) || defined(__unix) || defined(unix)
"unknown Unix"
#else
"unknown platform"
#endif
"%s)\n"
" http://www.neillcorlett.com/cmdpack/\n"
"\n",
(int)(sizeof(size_t) * 8),
(sizeof(off_t) > 4 && sizeof(off_t) > sizeof(size_t)) ? ", large file support" : ""
);
}
void banner_error(void) {
printf("Configuration error\n");
exit(1);
}
static void banner(void) {
((sizeof(off_t) >= sizeof(size_t)) ? banner_ok : banner_error)();
//
// If we've displayed the banner, we'll also want to warn that this is a
// command-line app when we exit
//
atexit(commandlinewarning);
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/bin2iso.c 0000644 0001750 0001750 00000017327 11731303760 016051 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "bin2iso - Convert CD .BIN to .ISO"
#define COPYR "Copyright (C) 2011 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
//
// Sector buffer
//
uint8_t buffer[2352];
////////////////////////////////////////////////////////////////////////////////
static const char* w(int force) { return force ? "Warning" : "Error"; }
int main(int argc, char** argv) {
int returncode = 0;
const char* binfilename = NULL;
const char* isofilename = NULL;
FILE* binfile = NULL;
FILE* isofile = NULL;
int force = 0;
time_t tstart = time(NULL) - 1;
off_t binfilelength = 0;
off_t binfilepos = 0;
char warning_shown_sync = 0;
char warning_shown_mode = 0;
char warning_shown_form2 = 0;
normalize_argv0(argv[0]);
//
// Process command line
//
{ int fn = 0;
int i;
for(i = 1; i < argc; i++) {
if(argv[i][0] == '-' && !fn) {
// An option
if(argv[i][1] == '-' && argv[i][2] == 0) {
// No more options
fn = 1;
continue;
}
if(argv[i][1] == 'f' && argv[i][2] == 0) {
// Force
force = 1;
continue;
}
printf("Unknown option: %s\n", argv[i]);
goto usage;
} else {
// A filename
switch(fn) {
case 0:
case 1: binfilename = argv[i]; fn = 2; break;
case 2: isofilename = argv[i]; fn = 3; break;
default: goto usage;
}
}
}
}
if(!binfilename || !isofilename) { goto usage; }
//
// Make sure the iso doesn't already exist
//
{ int exists = 0;
FILE* test = fopen(isofilename, "rb");
exists = (test != NULL);
if(test) {
fclose(test);
}
if(exists) {
printf("%s: %s already exists.\n", w(force), isofilename);
if(!force) { goto error_override; }
printf("Overwriting.\n");
}
}
//
// Open bin for reading
//
binfile = fopen(binfilename, "rb");
if(!binfile) { goto error_bin; }
//
// Verify the file length
//
if(fseeko(binfile, 0, SEEK_END) != 0) { goto error_bin; }
binfilelength = ftello(binfile);
if(!binfilelength) {
printf("Error: %s: Empty file; nothing to convert.\n", binfilename);
goto error;
}
if((binfilelength % ((off_t)2352)) != 0) {
printf("%s: %s: File size is not a multiple of 2352.\n", w(force), binfilename);
printf("Likely not a BIN file.\n");
if(!force) { goto error_override; }
}
//
// Open iso for writing
//
isofile = fopen(isofilename, "wb");
if(!isofile) { goto error_iso; }
//
// Convert
//
if(fseeko(binfile, 0, SEEK_SET) != 0) { goto error_bin; }
for(binfilepos = 0;; binfilepos += 2352) {
size_t data_ofs = 0x10;
size_t s;
time_t t = time(NULL);
//
// Progress indicator
//
if(t != tstart) {
off_t a = binfilepos / ((off_t)2352);
off_t b = binfilelength / ((off_t)2352);
off_t percent = b ? ((((off_t)100) * a) / b) : 0;
fprintf(stderr, "%d%%...\r", (int)percent);
tstart = t;
}
s = fread(buffer, 1, 2352, binfile);
if(ferror(binfile)) { goto error_bin; }
if(s == 0 && feof(binfile)) {
// Done converting
break;
}
if(s > 2352) { s = 2352; }
if(s < 2352) {
printf("%s: %s: Last sector is incomplete\n", w(force), binfilename);
if(!force) { goto error_override; }
// Zero-fill the remaining data
memset(buffer + s, 0, 2352 - s);
}
//
// Check for sync
//
if(memcmp(buffer, "\x00\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x00", 12)) {
if(!warning_shown_sync) {
printf("%s: %s: Sync area missing at 0x", w(force), binfilename);
fprinthex(stdout, binfilepos, 1);
printf("\n");
printf("Likely not a BIN file.\n");
}
if(!force) { goto error_override; }
warning_shown_sync = 1;
}
//
// Determine sector mode
//
switch(buffer[0xF]) {
case 0x00:
//
// Mode 0: technically legal, all zeroes
//
data_ofs = 0x10;
break;
case 0x01:
//
// Mode 1: ok
//
data_ofs = 0x10;
break;
case 0x02:
//
// Mode 2: Check form
//
data_ofs = 0x18;
if(
((buffer[0x12] & 0x20) != 0) ||
((buffer[0x16] & 0x20) != 0)
) {
if(!warning_shown_form2) {
printf("%s: %s: Form 2 sector at 0x", w(force), binfilename);
fprinthex(stdout, binfilepos, 1);
printf("\n");
printf("Information will be lost.\n");
}
if(!force) { goto error_override; }
warning_shown_form2 = 1;
}
break;
default:
//
// Unknown mode
//
if(!warning_shown_mode) {
printf("%s: %s: Unknown sector mode 0x%x at 0x", w(force), binfilename, buffer[0xF]);
fprinthex(stdout, binfilepos, 1);
printf("\n");
}
if(!force) { goto error_override; }
data_ofs = 0x10;
if(!warning_shown_mode) {
printf("Assuming mode 1.\n");
}
warning_shown_mode = 1;
break;
}
//
// Write sector to ISO
//
s = fwrite(buffer + data_ofs, 1, 2048, isofile);
if(ferror(isofile)) { goto error_iso; }
if(s != 2048) { goto error_iso; }
}
printf("%s -> %s done\n", binfilename, isofilename);
goto done;
usage:
banner();
printf(
"Usage: %s [-f] input_file output_file\n"
" -f: Force conversion and bypass checks\n",
argv[0]
);
goto error;
error_bin: printfileerror(binfile, binfilename); goto error;
error_iso: printfileerror(isofile, isofilename); goto error;
error_override:
printf("Use -f to override.\n");
error:
returncode = 1;
done:
if(binfile) { fclose(binfile); }
if(isofile) {
fclose(isofile);
// If there was an error, remove the partial ISO file
if(returncode && isofilename) {
remove(isofilename);
}
}
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/bincomp.c 0000644 0001750 0001750 00000010377 11731303760 016131 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "bincomp - Compare binary files"
#define COPYR "Copyright (C) 2010 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
static void dumpline(off_t ofs, uint16_t mask, uint8_t* bytes, off_t limit) {
off_t i;
fprinthex(stdout, ofs, 8);
printf(": ");
for(i = 0; i < 16; i++) {
if((mask >> i) & 1) {
printf("%02X", (int)bytes[i]);
} else {
printf((ofs + i) < limit ? ". " : " ");
}
}
printf(" ");
for(i = 0; i < 16; i++) {
if((mask >> i) & 1) {
printf("%02X", (int)bytes[16 + i]);
} else {
printf((ofs + i) < limit ? ". " : " ");
}
}
printf("\n");
}
////////////////////////////////////////////////////////////////////////////////
int main(int argc, char** argv) {
int returncode = 0;
FILE* fa = NULL;
FILE* fb = NULL;
off_t ofs;
int8_t is_different = 0;
int longform = 0;
off_t line_ofs = -1;
uint16_t line_mask = 0;
uint8_t line_bytes[32];
normalize_argv0(argv[0]);
if(argc == 4) {
if(strcmp(argv[3], "-l")) { goto usage; }
longform = 1;
} else if(argc == 3) {
longform = 0;
} else {
goto usage;
}
if(!strcmp(argv[1], argv[2])) {
printf("You specified the same file\n");
goto done;
}
fa = fopen(argv[1], "rb");
if(!fa) { goto error_fa; }
fb = fopen(argv[2], "rb");
if(!fb) { goto error_fb; }
for(ofs = 0;; ofs++) {
int ca;
int cb;
if(line_mask && ((ofs | 0xF) != (line_ofs | 0xF))) {
dumpline(line_ofs, line_mask, line_bytes, line_ofs + 0x10);
line_mask = 0;
}
ca = fgetc(fa);
if(ca == EOF && ferror(fa)) { goto error_fa; }
cb = fgetc(fb);
if(cb == EOF && ferror(fb)) { goto error_fb; }
is_different |= (ca != cb);
if(ca == EOF && cb != EOF) {
if(line_mask) { dumpline(line_ofs, line_mask, line_bytes, ofs); }
printf("%s is longer than %s\n", argv[2], argv[1]);
break;
}
if(cb == EOF && ca != EOF) {
if(line_mask) { dumpline(line_ofs, line_mask, line_bytes, ofs); }
printf("%s is longer than %s\n", argv[1], argv[2]);
break;
}
if(ca == EOF && cb == EOF) {
if(line_mask) { dumpline(line_ofs, line_mask, line_bytes, ofs); }
break;
}
if(ca != cb) {
if(longform) {
fprinthex(stdout, ofs, 8);
printf(": %02X %02X\n", ca, cb);
} else {
line_ofs = (ofs | 0xF) ^ 0xF;
line_mask |= 1 << (ofs & 0xF);
line_bytes[ (ofs & 0xF)] = (uint8_t)ca;
line_bytes[16 + (ofs & 0xF)] = (uint8_t)cb;
}
}
}
if(!is_different) {
printf("Files match\n");
}
returncode = is_different;
goto done;
error_fa: printfileerror(fa, argv[1]); goto error;
error_fb: printfileerror(fb, argv[2]); goto error;
usage:
banner();
printf(
"Usage: %s file1 file2 [-l]\n"
" -l Use long format\n",
argv[0]
);
goto error;
error:
returncode = 1;
done:
if(fa != NULL) { fclose(fa); }
if(fb != NULL) { fclose(fb); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/brrrip.c 0000644 0001750 0001750 00000016061 11731303760 015776 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "brrrip - Rip SNES BRR sound samples"
#define COPYR "Copyright (C) 2011 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
static void set32lsb(uint8_t* dest, uint32_t n) {
dest[0] = (uint8_t)(n >> 0);
dest[1] = (uint8_t)(n >> 8);
dest[2] = (uint8_t)(n >> 16);
dest[3] = (uint8_t)(n >> 24);
}
////////////////////////////////////////////////////////////////////////////////
static int writewav(
FILE* src,
const char* srcfilename,
off_t startpos,
off_t endpos,
off_t samplerate
) {
int returncode = 0;
static uint8_t wavhdr[] = {
0x52,0x49,0x46,0x46,0x16,0x63,0x01,0x00,
0x57,0x41,0x56,0x45,0x66,0x6D,0x74,0x20,
0x10,0x00,0x00,0x00,0x01,0x00,0x01,0x00,
0x44,0xAC,0x00,0x00,0x88,0x58,0x01,0x00,
0x02,0x00,0x10,0x00,0x64,0x61,0x74,0x61,
0x40,0x62,0x01,0x00
};
FILE *wav = NULL;
char wavfilename[24];
int32_t p1 = 0;
int32_t p2 = 0;
if(fseeko(src, startpos, SEEK_SET) != 0) { goto error_src; }
sprintf(wavfilename, "%06lx.wav", (unsigned long)((uint32_t)(startpos)));
fprinthex(stdout, startpos, 6);
printf("..");
fprinthex(stdout, endpos , 6);
printf(" -> %s: ", wavfilename);
fflush(stdout);
wav = fopen(wavfilename, "wb");
if(!wav) { goto error_wav; }
set32lsb(wavhdr + 0x04, (uint32_t)(0x24+32*((endpos - startpos) / 9)));
set32lsb(wavhdr + 0x28, (uint32_t)( 32*((endpos - startpos) / 9)));
set32lsb(wavhdr + 0x18, (uint32_t)(samplerate ));
set32lsb(wavhdr + 0x1C, (uint32_t)(samplerate * 2));
if(fwrite(wavhdr, 1, 0x2C, wav) != 0x2C) { goto error_wav; }
for(; startpos < endpos; startpos += 9) {
static const int8_t coef1[4] = { -128, -68, -6, -13 };
static const int8_t coef2[4] = { 0, 0, -15, -13 };
int32_t c1, c2;
uint8_t block[9];
uint8_t shift;
size_t s = fread(block, 1, 9, src);
if(s != 9) { goto error_src; }
shift = block[0] >> 4;
c1 = coef1[(block[0] >> 2) & 3];
c2 = coef2[(block[0] >> 2) & 3];
for(s = 0; s < 16; s++) {
int32_t sample = block[1 + (s >> 1)];
sample <<= 24 + 4 * (s & 1);
sample >>= 28;
if(shift <= 12) {
sample <<= shift;
sample >>= 1;
} else {
sample &= -0x800;
}
sample += (p1 << 1) + ((c1 * p1) >> 6);
sample += (c2 * p2) >> 4;
if(sample < -32768) { sample = -32768; }
if(sample > 32767) { sample = 32767; }
fputc((sample ) & 0xFF, wav);
fputc((sample >> 8) & 0xFF, wav);
p2 = p1;
p1 = sample;
}
}
printf("ok\n");
goto done;
error_wav: printfileerror(wav, wavfilename); goto error;
error_src: printfileerror(src, srcfilename); goto error;
error:
returncode = 1;
goto done;
done:
if(wav) { fclose(wav); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
static int isvalidblock(const uint8_t* block) {
if(block[0] >= 0xD0) { return 0; }
if( (!block[1]) && (!block[2]) && (!block[3]) && (!block[4]) &&
(!block[5]) && (!block[6]) && (!block[7]) && (!block[8])
) { return 0; }
return 1;
}
////////////////////////////////////////////////////////////////////////////////
static int analyze(
FILE* f,
const char* filename,
off_t* nsamples,
off_t samplerate,
off_t minblocks
) {
int returncode = 0;
clearerr(f);
for(;;) {
uint8_t block[9];
size_t s;
off_t startpos, endpos;
startpos = ftello(f);
if(startpos == -1) { goto error_f; }
//
// Find a sample beginning
//
for(;; startpos += 9) {
s = fread(block, 1, 9, f);
if(s != 9) {
if(ferror(f)) { goto error_f; }
goto done;
}
if(!isvalidblock(block)) { continue; }
break;
}
endpos = ftello(f);
if(endpos == -1) { goto error_f; }
//
// Find a sample end
//
for(;; endpos += 9) {
s = fread(block, 1, 9, f);
if(s != 9) {
if(ferror(f)) { goto error_f; }
break;
}
if(!isvalidblock(block)) { break; } // end before this block
if(block[0] & 1) { endpos += 9; break; } // end after this block
}
//
// If the sample is long enough, write it out
//
if(((endpos - startpos) / 9) >= minblocks) {
if(writewav(f, filename, startpos, endpos, samplerate)) {
goto error;
}
(*nsamples)++;
}
if(fseeko(f, endpos, SEEK_SET) != 0) { goto error_f; }
}
error_f:
printfileerror(f, filename);
goto error;
error:
returncode = 1;
goto done;
done:
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
int main(int argc, char** argv) {
int returncode = 0;
off_t samplerate = 16000;
off_t minblocks = 50;
off_t nsamples = 0;
FILE *f = NULL;
int i;
normalize_argv0(argv[0]);
if(argc < 2) { goto usage; }
if(argc >= 3) { samplerate = strtoofft(argv[2], NULL, 0); }
if(argc >= 4) { minblocks = strtoofft(argv[3], NULL, 0); }
if(argc >= 5) { goto usage; }
f = fopen(argv[1], "rb");
if(!f) { goto error_f; }
for(i = 0; i < 9; i++) {
printf("Pass %d/9:\n", (int)(i + 1));
if(fseeko(f, i, SEEK_SET) != 0) { goto error_f; }
if(analyze(f, argv[1], &nsamples, samplerate, minblocks)) {
goto error;
}
}
goto done;
usage:
banner();
printf("Usage: %s romfile [samplerate [minblocks]]\n", argv[0]);
goto error;
error_f:
printfileerror(f, argv[1]);
error:
returncode = 1;
goto done;
done:
if(nsamples) {
printf("Ripped ");
fprintdec(stdout, nsamples);
printf(" sample%s\n", nsamples != 1 ? "s" : "");
}
if(f) { fclose(f); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/byteshuf.c 0000644 0001750 0001750 00000017770 11731303760 016337 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "byteshuf - Shuffle or unshuffle bytes in a file"
#define COPYR "Copyright (C) 2011 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
static int shuffle(
int shuffling,
const char* mainfile,
const char** subfiles,
size_t subfiles_count,
int overwrite
) {
int returncode = 0;
size_t i;
int* chars = calloc(1, sizeof(int) * subfiles_count);
FILE* mf = NULL;
FILE** sf = calloc(1, sizeof(FILE*) * subfiles_count);
if(!sf || !chars) {
printf("Error: Out of memory\n");
goto error;
}
if(shuffling && !overwrite) {
//
// Ensure main file doesn't already exist
//
mf = fopen(mainfile, "rb");
if(mf) {
printf("Error: %s already exists (use -o to overwrite)\n",
mainfile
);
goto error;
}
}
if(!shuffling && !overwrite) {
//
// Ensure sub files don't already exist
//
for(i = 0; i < subfiles_count; i++) {
sf[i] = fopen(subfiles[i], "rb");
if(sf[i]) {
printf("Error: %s already exists (use -o to overwrite)\n",
subfiles[i]
);
goto error;
}
}
}
if(shuffling) {
size_t num_chars_last = subfiles_count;
//
// Open sub files
//
for(i = 0; i < subfiles_count; i++) {
sf[i] = fopen(subfiles[i], "rb");
if(!sf[i]) { goto error_sf_i; }
clearerr(sf[i]);
}
//
// Open main file
//
mf = fopen(mainfile, "wb");
if(!mf) { goto error_mf; }
clearerr(mf);
for(;;) {
size_t num_chars = 0;
for(i = 0; i < subfiles_count; i++) {
chars[i] = fgetc(sf[i]);
if(chars[i] == EOF) {
if(ferror(sf[i])) { goto error_sf_i; }
chars[i] = 0;
} else {
chars[i] &= 0xFF;
num_chars = i + 1;
}
}
if(!num_chars) { break; }
for(i = num_chars_last; i < subfiles_count; i++) {
if(fputc(0, mf) == EOF) { goto error_mf; }
}
for(i = 0; i < num_chars; i++) {
if(fputc(chars[i], mf) == EOF) { goto error_mf; }
}
num_chars_last = num_chars;
}
} else {
//
// Open main file
//
mf = fopen(mainfile, "rb");
if(!mf) { goto error_mf; }
clearerr(mf);
//
// Open sub files
//
for(i = 0; i < subfiles_count; i++) {
sf[i] = fopen(subfiles[i], "wb");
if(!sf[i]) { goto error_sf_i; }
clearerr(sf[i]);
}
for(;;) {
for(i = 0; i < subfiles_count; i++) {
int c = fgetc(mf);
if(c == EOF) {
if(ferror(mf)) { goto error_mf; }
break;
}
if(fputc(c & 0xFF, sf[i]) == EOF) { goto error_sf_i; }
}
if(i < subfiles_count) { break; }
}
}
goto done;
error_mf:
printfileerror(mf, mainfile);
goto error;
error_sf_i:
printfileerror(sf[i], subfiles[i]);
goto error;
error:
returncode = 1;
goto done;
done:
if(mf) { fclose(mf); }
if(sf) {
for(i = 0; i < subfiles_count; i++) {
if(sf[i]) { fclose(sf[i]); }
}
free(sf);
}
if(chars) { free(chars); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
static int checkboth(int a, int b, const char* ab) {
if(a && b) {
printf("Error: Cannot specify both -%c and -%c\n", ab[0], ab[1]);
return 1;
}
return 0;
}
static int checkeither(int a, int b, const char* ab) {
if((!a) && (!b)) {
printf("Error: Must specify either -%c or -%c\n", ab[0], ab[1]);
return 1;
}
return 0;
}
////////////////////////////////////////////////////////////////////////////////
int main(int argc, char** argv) {
int returncode = 0;
struct {
int8_t shuffle;
int8_t unshuffle;
int8_t overwrite;
const char* mainfile;
const char** files;
size_t files_count;
} opt;
int i;
normalize_argv0(argv[0]);
memset(&opt, 0, sizeof(opt));
//
// Check options
//
if(argc == 1) { goto usage; }
for(i = 1; i < argc; i++) {
if(argv[i][0] == '-') {
// An option
if(argv[i][1] == '-' && argv[i][2] == 0) {
// No more options
i++;
break;
} else if(argv[i][1] == 's' && argv[i][2] == 0) {
if(opt.shuffle) { goto error_dup; }
if(i >= (argc - 1)) { goto error_missing; }
opt.shuffle = 1;
opt.mainfile = argv[++i];
continue;
} else if(argv[i][1] == 'u' && argv[i][2] == 0) {
if(opt.unshuffle) { goto error_dup; }
if(i >= (argc - 1)) { goto error_missing; }
opt.unshuffle = 1;
opt.mainfile = argv[++i];
continue;
} else if(argv[i][1] == 'o' && argv[i][2] == 0) {
opt.overwrite = 1;
continue;
}
printf("Error: Unknown option: %s\n", argv[i]);
goto error_usage;
} else {
// Not an option - stop here
break;
}
}
if(checkeither(opt.shuffle, opt.unshuffle, "su")) { goto error_usage; }
if(checkboth (opt.shuffle, opt.unshuffle, "su")) { goto error_usage; }
//
// At least two files must be specified
//
opt.files = (const char**)(argv + i);
opt.files_count = (argc - i);
if(opt.files_count < 2) {
printf("Error: Must specify at least two subfiles\n");
goto error_usage;
}
//
// Go
//
if(opt.shuffle) {
returncode = shuffle(
1, opt.mainfile, opt.files, opt.files_count, opt.overwrite
);
} else if(opt.unshuffle) {
returncode = shuffle(
0, opt.mainfile, opt.files, opt.files_count, opt.overwrite
);
}
goto done;
error_dup:
printf("Error: Specified %s twice\n", argv[i]);
goto error_usage;
error_missing:
printf("Error: Missing parameter for %s\n", argv[i]);
goto error_usage;
error_usage:
printf("\n");
goto usage;
usage:
banner();
printf(
"Usage:\n"
" To unshuffle: %s [-o] -u source [subfiles...]\n"
" To shuffle: %s [-o] -s destination [subfiles...]\n"
"\n"
"Options:\n"
" -o Force overwrite\n"
"\n"
"For example, \"%s -u abc def0 def1\" will split all the even bytes from\n"
"\"abc\" into \"def0\", and the odd bytes into \"def1\".\n",
argv[0], argv[0], argv[0]
);
goto error;
error:
returncode = 1;
goto done;
done:
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/byteswap.c 0000644 0001750 0001750 00000013323 11731303760 016332 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "byteswap - Swap byte order of files"
#define COPYR "Copyright (C) 2011 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
static int byteswap(
const char* filename,
uint8_t* buf,
size_t buffersize,
size_t recordsize,
int quiet
) {
int returncode = 0;
FILE* f = NULL;
f = fopen(filename, "r+b");
if(!f) { goto error_f; }
for(;;) {
size_t rec;
size_t size;
//
// Read
//
clearerr(f);
size = fread(buf, 1, buffersize, f);
if(size == 0) {
// Check for error
if(ferror(f)) {
goto error_f;
}
// Otherwise, done
break;
}
//
// Seek backwards
//
if(fseeko(f, -((off_t)size), SEEK_CUR) != 0) {
goto error_f;
}
if(size > buffersize) { size = buffersize; }
if(size < buffersize) {
//
// Round up to the next record, filling with zeroes as we go
//
size_t extra = size % recordsize;
if(extra) {
for(; extra < recordsize; extra++) {
buf[size++] = 0;
}
}
}
//
// Reverse each record in memory
//
for(rec = 0; rec < size; rec += recordsize) {
size_t a = rec;
size_t b = rec + recordsize - 1;
for(; a < b; a++, b--) {
uint8_t t = buf[a];
buf[a] = buf[b];
buf[b] = t;
}
}
//
// Write
//
if(fwrite(buf, 1, size, f) != size) {
goto error_f;
}
fflush(f);
}
if(!quiet) {
printf("%s: Done\n", filename);
}
goto done;
error_f:
printfileerror(f, filename);
goto error;
error:
returncode = 1;
done:
if(f != NULL) { fclose(f); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
int main(int argc, char** argv) {
int returncode = 0;
unsigned long recordsize = 2;
unsigned long recordsize_max = (sizeof(size_t) < sizeof(unsigned long)) ?
((unsigned long)((size_t)(-1))) : LONG_MAX;
int quiet = 0;
int i;
uint8_t* buf = NULL;
size_t buffersize = 0;
size_t buffersize_min = 8192;
normalize_argv0(argv[0]);
//
// Check options
//
if(argc == 1) { goto usage; }
for(i = 1; i < argc; i++) {
if(argv[i][0] == '-') {
// An option
if(argv[i][1] == '-' && argv[i][2] == 0) {
// No more options
i++;
break;
} else if(argv[i][1] == 'q' && argv[i][2] == 0) {
// Quiet
quiet = 1;
continue;
} else if(argv[i][1] == 's' && argv[i][2] == 0) {
// Record size
i++;
if(i >= argc) { goto usage; }
if(argv[i][0] == '-') {
printf("Error: Record size must not be negative\n");
goto error;
}
if(!isdigit((int)(argv[i][0]))) { goto usage; }
recordsize = strtoul(argv[i], NULL, 0);
continue;
}
printf("Unknown option: %s\n", argv[i]);
goto usage;
} else {
// Not an option - stop here
break;
}
}
if(i >= argc) {
printf("Error: No files were specified\n");
goto usage;
}
if(recordsize > recordsize_max || recordsize > LONG_MAX) {
printf("Error: Record size is too large\n");
goto error;
}
if(recordsize < 2) {
printf("Error: Record size must be at least 2\n");
goto error;
}
//
// Figure out how big the buffer should be
//
buffersize = ((size_t)(recordsize));
if(buffersize < buffersize_min) {
buffersize = buffersize_min - (
buffersize_min % ((size_t)(recordsize))
);
}
//
// Allocate buffer
//
buf = malloc(buffersize);
if(!buf) {
printf("Error: Out of memory\n");
goto error;
}
//
// Process files
//
for(; i < argc; i++) {
if(byteswap(argv[i], buf, buffersize, (size_t)recordsize, quiet)) {
returncode = 1;
}
}
goto done;
usage:
banner();
printf("Swaps the byte order of each record in a file, in place.\n");
printf("\n");
printf("Usage: %s [-q] [-s recordsize] files...\n", argv[0]);
printf(" -q: Quiet\n");
printf(" -s: Size, in bytes, of each record to swap (default: 2)\n");
goto error;
error:
returncode = 1;
done:
if(buf != NULL) { free(buf); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/cdpatch.c 0000644 0001750 0001750 00000166665 11731303760 016124 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "cdpatch - CD-XA image insert/extract utility"
#define COPYR "Copyright (C) 2001,2011 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
static const uint32_t max_path_depth = 256;
////////////////////////////////////////////////////////////////////////////////
//
// Program options
//
struct cdpatch_options {
int8_t insert;
int8_t extract;
const char* binname;
const char* basedir;
int8_t big;
int8_t little;
int8_t boot;
int8_t enforce_fscheck;
int8_t overwrite;
int8_t verbose;
int8_t recurse;
const char** files;
int files_count;
};
static const char* fsoverride = " (use -f to override)";
////////////////////////////////////////////////////////////////////////////////
static int exists(const char* filename) {
FILE* f = fopen(filename, "rb");
if(f) { fclose(f); return 1; }
return 0;
}
////////////////////////////////////////////////////////////////////////////////
static const char* oom = "Error: Out of memory\n";
////////////////////////////////////////////////////////////////////////////////
static uint32_t get32lsb(const uint8_t* p) {
return
(((uint32_t)(p[0])) << 0) |
(((uint32_t)(p[1])) << 8) |
(((uint32_t)(p[2])) << 16) |
(((uint32_t)(p[3])) << 24);
}
static uint32_t get32msb(const uint8_t* p) {
return
(((uint32_t)(p[0])) << 24) |
(((uint32_t)(p[1])) << 16) |
(((uint32_t)(p[2])) << 8) |
(((uint32_t)(p[3])) << 0);
}
static void set32lsb(uint8_t* p, uint32_t value) {
p[0] = (uint8_t)(value >> 0);
p[1] = (uint8_t)(value >> 8);
p[2] = (uint8_t)(value >> 16);
p[3] = (uint8_t)(value >> 24);
}
static void set32msb(uint8_t* p, uint32_t value) {
p[0] = (uint8_t)(value >> 24);
p[1] = (uint8_t)(value >> 16);
p[2] = (uint8_t)(value >> 8);
p[3] = (uint8_t)(value >> 0);
}
////////////////////////////////////////////////////////////////////////////////
//
// Returns nonzero if any bytes in the array are nonzero
//
static int anynonzero(const uint8_t* data, size_t len) {
for(; len; len--) {
if(*data++) { return 1; }
}
return 0;
}
////////////////////////////////////////////////////////////////////////////////
//
// Convert ISO9660 file size to sector count, rounding up
//
static uint32_t sectorcount(uint32_t size) {
return (size >> 11) + ((size & 0x7FF) != 0);
}
////////////////////////////////////////////////////////////////////////////////
//
// LUTs for computing ECC/EDC
//
static uint8_t ecc_f_lut[256];
static uint8_t ecc_b_lut[256];
static uint32_t edc_lut [256];
static void eccedc_init(void) {
uint32_t i, j, edc;
for(i = 0; i < 256; i++) {
j = (i << 1) ^ (i & 0x80 ? 0x11D : 0);
ecc_f_lut[i ] = (uint8_t)j;
ecc_b_lut[i ^ j] = (uint8_t)i;
edc = i;
for(j = 0; j < 8; j++) {
edc = (edc >> 1) ^ (edc & 1 ? 0xD8018001 : 0);
}
edc_lut[i] = edc;
}
}
////////////////////////////////////////////////////////////////////////////////
//
// Compute EDC for a block
//
static void edc_computeblock(const uint8_t* src, size_t size, uint8_t* dest) {
uint32_t edc = 0;
while(size--) {
edc = (edc >> 8) ^ edc_lut[(edc ^ (*src++)) & 0xFF];
}
set32lsb(dest, edc);
}
////////////////////////////////////////////////////////////////////////////////
//
// Compute ECC for a block (can do either P or Q)
//
static void ecc_computeblock(
uint8_t* src,
uint32_t major_count,
uint32_t minor_count,
uint32_t major_mult,
uint32_t minor_inc,
uint8_t* dest
) {
uint32_t size = major_count * minor_count;
uint32_t major, minor;
for(major = 0; major < major_count; major++) {
uint32_t index = (major >> 1) * major_mult + (major & 1);
uint8_t ecc_a = 0;
uint8_t ecc_b = 0;
for(minor = 0; minor < minor_count; minor++) {
uint8_t temp = src[index];
index += minor_inc;
if(index >= size) index -= size;
ecc_a ^= temp;
ecc_b ^= temp;
ecc_a = ecc_f_lut[ecc_a];
}
ecc_a = ecc_b_lut[ecc_f_lut[ecc_a] ^ ecc_b];
dest[major ] = ecc_a;
dest[major + major_count] = ecc_a ^ ecc_b;
}
}
//
// Generate ECC P and Q codes for a block
//
static void ecc_generate(uint8_t* sector, int zeroaddress) {
uint8_t saved_address[4];
//
// Save the address and zero it out, if necessary
//
if(zeroaddress) {
memmove(saved_address, sector + 12, 4);
memset(sector + 12, 0, 4);
}
//
// Compute ECC P code
//
ecc_computeblock(sector + 0xC, 86, 24, 2, 86, sector + 0x81C);
//
// Compute ECC Q code
//
ecc_computeblock(sector + 0xC, 52, 43, 86, 88, sector + 0x8C8);
//
// Restore the address, if necessary
//
if(zeroaddress) {
memmove(sector + 12, saved_address, 4);
}
}
////////////////////////////////////////////////////////////////////////////////
//
// CD sync header
//
static const uint8_t sync_header[12] = {
0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00
};
////////////////////////////////////////////////////////////////////////////////
//
// Generate ECC/EDC information for a sector (must be 2352 = 0x930 bytes)
//
static void eccedc_generate(uint8_t* sector) {
//
// Generate sync
//
memmove(sector, sync_header, sizeof(sync_header));
switch(sector[0x0F]) {
case 0x00:
//
// Mode 0: no data; generate zeroes
//
memset(sector + 0x10, 0, 0x920);
break;
case 0x01:
//
// Mode 1:
//
// Compute EDC
//
edc_computeblock(sector + 0x00, 0x810, sector + 0x810);
//
// Zero out reserved area
//
memset(sector + 0x814, 0, 8);
//
// Generate ECC P/Q codes
//
ecc_generate(sector, 0);
break;
case 0x02:
//
// Mode 2:
//
// Make sure XA flags match
//
memmove(sector + 0x14, sector + 0x10, 4);
if(!(sector[0x12] & 0x20)) {
//
// Form 1: Compute EDC
//
edc_computeblock(sector + 0x10, 0x808, sector + 0x818);
//
// Generate ECC P/Q codes
//
ecc_generate(sector, 1);
} else {
//
// Form 2: Compute EDC
//
edc_computeblock(sector + 0x10, 0x91C, sector + 0x92C);
}
break;
}
}
////////////////////////////////////////////////////////////////////////////////
//
// Verify EDC for a sector (must be 2352 = 0x930 bytes)
// Returns 0 on success
//
static int edc_verify(const uint8_t* sector) {
uint8_t myedc[4];
//
// Verify sync
//
if(memcmp(sector, sync_header, sizeof(sync_header))) { return 1; }
switch(sector[0x0F]) {
case 0x00:
//
// Mode 0: no data; everything had better be zero
//
return anynonzero(sector + 0x10, 0x920);
case 0x01:
//
// Mode 1
//
edc_computeblock(sector + 0x00, 0x810, myedc);
return memcmp(myedc, sector + 0x810, 4);
case 0x02:
//
// Mode 2: Verify that the XA type is correctly copied twice
//
if(memcmp(sector + 0x10, sector + 0x14, 4)) { return 1; }
if(!(sector[0x12] & 0x20)) {
//
// Form 1
//
edc_computeblock(sector + 0x10, 0x808, myedc);
return memcmp(myedc, sector + 0x818, 4);
} else {
//
// Form 2
//
edc_computeblock(sector + 0x10, 0x91C, myedc);
return memcmp(myedc, sector + 0x92C, 4);
}
}
//
// Invalid mode
//
return 1;
}
////////////////////////////////////////////////////////////////////////////////
struct cacheentry {
uint8_t* data;
uint32_t sector;
uint8_t valid;
};
enum { CACHE_ENTRIES = 4 };
enum {
BINTYPE_UNKNOWN = 0,
BINTYPE_2048 = 1,
BINTYPE_2352 = 2
};
struct binfile {
FILE* f;
const char* name;
int type;
uint32_t sectors;
struct cacheentry cache[CACHE_ENTRIES];
};
static void bin_quit(struct binfile* bin) {
size_t i;
if(bin->f) { fclose(bin->f); }
for(i = 0; i < CACHE_ENTRIES; i++) {
if(bin->cache[i].data) { free(bin->cache[i].data); }
}
}
static int bin_init(struct binfile* bin) {
size_t i;
memset(bin, 0, sizeof(struct binfile));
for(i = 0; i < CACHE_ENTRIES; i++) {
bin->cache[i].data = malloc(2352);
if(!bin->cache[i].data) {
printf("%s", oom);
bin_quit(bin);
return 1;
}
}
return 0;
}
static void cache_mtf(struct binfile* bin, size_t entry) {
if(entry) {
struct cacheentry tmp = bin->cache[entry];
memmove(bin->cache + 1, bin->cache, sizeof(struct cacheentry) * entry);
bin->cache[0] = tmp;
}
}
static uint8_t* cache_find(struct binfile* bin, uint32_t sector) {
size_t i;
for(i = 0; i < CACHE_ENTRIES; i++) {
if((bin->cache[i].sector == sector) && bin->cache[i].valid) {
cache_mtf(bin, i);
return bin->cache[0].data;
}
}
return NULL;
}
static uint8_t* cache_allocbegin(struct binfile* bin, uint32_t sector) {
bin->cache[CACHE_ENTRIES - 1].valid = 0;
bin->cache[CACHE_ENTRIES - 1].sector = sector;
return bin->cache[CACHE_ENTRIES - 1].data;
}
static void cache_allocend(struct binfile* bin) {
cache_mtf(bin, CACHE_ENTRIES - 1);
bin->cache[0].valid = 1;
}
////////////////////////////////////////////////////////////////////////////////
//
// Detect whether image is ISO or BIN
// Returns nonzero on error
//
static int bintype_detect(struct binfile* bin) {
uint8_t* sector = NULL;
off_t size;
bin->type = BINTYPE_UNKNOWN;
if(fseeko(bin->f, 0, SEEK_END) != 0) { goto error_bin; }
size = ftello(bin->f);
if(size == -1) { goto error_bin; }
if(fseeko(bin->f, 0, SEEK_SET) != 0) { goto error_bin; }
if(size <= 0 || ((size % 2352) != 0 && (size % 2048) != 0)) {
//
// Size is zero or not cleanly divisible
//
printf("Error: %s: Unable to determine BIN or ISO format based on size\n",
bin->name
);
goto error;
} else if((size % 2352) != 0) {
//
// If indivisible by 2352, assume ISO
//
bin->type = BINTYPE_2048;
} else if((size % 2048) != 0) {
//
// If indivisible by 2048, assume BIN
//
bin->type = BINTYPE_2352;
} else {
//
// If divisible by both, read the first 2352 bytes and see if it's a
// valid raw sector. If so, assume BIN.
//
sector = malloc(2352);
if(!sector) { goto error_mem; }
if(fread(sector, 1, 2352, bin->f) != 2352) { goto error_bin; }
bin->type = edc_verify(sector) ? BINTYPE_2048 : BINTYPE_2352;
}
//
// Figure out the number of sectors
//
{ off_t sectorsize = (bin->type == BINTYPE_2048) ? 2048 : 2352;
bin->sectors =
(sizeof(off_t) > 4) ? (
((((off_t)(size / sectorsize)) >> 31) > 1) ?
((uint32_t)(0xFFFFFFFFLU)) :
((uint32_t)(size / sectorsize))
) : (((uint32_t)size) / ((uint32_t)sectorsize));
}
goto done;
error_mem:
printf("%s", oom);
goto error;
error_bin:
printfileerror(bin->f, bin->name);
goto error;
error:
bin->type = BINTYPE_UNKNOWN;
goto done;
done:
if(sector) { free(sector); }
return (bin->type == BINTYPE_UNKNOWN);
}
////////////////////////////////////////////////////////////////////////////////
//
// Ensure that the sector number is within the seekable range for the bin file;
// returns nonzero on error
//
int check_bin_sector_range(const struct binfile* bin, uint32_t sector) {
if(sector >= bin->sectors) {
printf("Error: Sector %lu is out of range\n", (unsigned long)sector);
return 1;
}
return 0;
}
////////////////////////////////////////////////////////////////////////////////
//
// Returns NULL on failure
// The returned buffer is valid until the next call
//
static uint8_t* read_raw_sector(struct binfile* bin, uint32_t sector) {
uint8_t* data = NULL;
if(check_bin_sector_range(bin, sector)) { goto error; }
if(bin->type != BINTYPE_2352) {
printf("Error: Tried to read raw sector from ISO\n");
goto error;
}
data = cache_find(bin, sector);
if(!data) {
data = cache_allocbegin(bin, sector);
if(fseeko(bin->f, 2352 * ((off_t)sector), SEEK_SET) != 0) {
goto error_f;
}
if(fread(data, 1, 2352, bin->f) != 2352) { goto error_f; }
cache_allocend(bin);
}
return data;
error_f:
printf("At sector %lu: ", (unsigned long)sector);
printfileerror(bin->f, bin->name);
goto error;
error:
return NULL;
}
////////////////////////////////////////////////////////////////////////////////
//
// Returns NULL on failure
// The returned buffer is valid until the next call
//
static uint8_t* read_cooked_sector(
struct binfile* bin,
uint32_t sector,
const struct cdpatch_options* opt
) {
uint8_t* data = NULL;
if(check_bin_sector_range(bin, sector)) { goto error; }
data = cache_find(bin, sector);
if(!data) {
data = cache_allocbegin(bin, sector);
if(bin->type == BINTYPE_2048) {
if(fseeko(bin->f, 2048 * ((off_t)sector), SEEK_SET) != 0) {
goto error_f;
}
if(fread(data, 1, 2048, bin->f) != 2048) { goto error_f; }
} else {
if(fseeko(bin->f, 2352 * ((off_t)sector), SEEK_SET) != 0) {
goto error_f;
}
if(fread(data, 1, 2352, bin->f) != 2352) { goto error_f; }
//
// Verify the EDC
//
if(edc_verify(data)) {
if(opt->enforce_fscheck || opt->verbose) {
printf("%s: CD sector %lu is corrupt%s\n",
opt->enforce_fscheck ? "Error" : "Warning",
(unsigned long)sector,
opt->enforce_fscheck ? fsoverride : ""
);
}
if(opt->enforce_fscheck) { goto error; }
}
}
cache_allocend(bin);
}
if(bin->type == BINTYPE_2352) {
//
// Figure out where the data actually resides in the sector
//
switch(data[0xF]) {
case 1:
data += 0x10;
break;
case 2:
if(data[0x12] & 0x20) {
if(opt->enforce_fscheck || opt->verbose) {
printf("%s: Attempted to read Form 2 sector %lu%s\n",
opt->enforce_fscheck ? "Error" : "Warning",
(unsigned long)sector,
opt->enforce_fscheck ? fsoverride : ""
);
}
if(opt->enforce_fscheck) { goto error; }
}
data += 0x18;
break;
default:
if(opt->enforce_fscheck || opt->verbose) {
printf("%s: Invalid mode 0x%02X at sector %lu%s\n",
opt->enforce_fscheck ? "Error" : "Warning",
(int)data[0xF], (unsigned long)sector,
opt->enforce_fscheck ? fsoverride : ""
);
if(opt->enforce_fscheck) { goto error; }
}
data += 0x10; // assume mode 1
break;
}
}
return data;
error_f:
printf("At sector %lu: ", (unsigned long)sector);
printfileerror(bin->f, bin->name);
goto error;
error:
return NULL;
}
////////////////////////////////////////////////////////////////////////////////
//
// Allocate space for a cooked sector, with the understanding that we will
// overwrite all of it
//
// Returns NULL on failure
// The returned buffer is valid until the next call
//
static uint8_t* alloc_cooked_sector(
struct binfile* bin,
uint32_t sector,
const struct cdpatch_options* opt
) {
if(bin->type == BINTYPE_2048) {
uint8_t* data;
if(check_bin_sector_range(bin, sector)) { return NULL; }
//
// Just allocate space and not initialize it
//
data = cache_find(bin, sector);
if(!data) {
data = cache_allocbegin(bin, sector);
cache_allocend(bin);
}
return data;
} else {
//
// We need to read the sector anyway, so just read it
//
return read_cooked_sector(bin, sector, opt);
}
}
////////////////////////////////////////////////////////////////////////////////
//
// Returns 0 on success
//
static int writeback_raw_sector(struct binfile* bin, uint32_t sector) {
int returncode = 0;
const uint8_t* data;
if(check_bin_sector_range(bin, sector)) { goto error; }
if(bin->type != BINTYPE_2352) {
printf("Error: Tried to write raw sector to ISO\n");
goto error;
}
data = cache_find(bin, sector);
if(!data) {
printf("Error: Sector not in cache\n");
goto error;
}
//
// Seek and write
//
if(fseeko(bin->f, 2352 * ((off_t)sector), SEEK_SET) != 0) { goto error_f; }
if(fwrite(data, 1, 2352, bin->f) != 2352) { goto error_f; }
fflush(bin->f);
goto done;
error_f:
printf("At sector %lu: ", (unsigned long)sector);
printfileerror(bin->f, bin->name);
goto error;
error:
returncode = 1;
goto done;
done:
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
//
// Returns 0 on success
//
static int writeback_cooked_sector(
struct binfile* bin,
uint32_t sector,
int redoflags,
int last
) {
int returncode = 0;
uint8_t* data;
if(check_bin_sector_range(bin, sector)) { goto error; }
data = cache_find(bin, sector);
if(!data) {
printf("Error: Sector not in cache\n");
goto error;
}
if(bin->type == BINTYPE_2048) {
//
// If this is an ISO file, just seek and write directly
//
if(fseeko(bin->f, 2048 * ((off_t)sector), SEEK_SET) != 0) { goto error_f; }
if(fwrite(data, 1, 2048, bin->f) != 2048) { goto error_f; }
} else {
//
// If mode 2, and we care about the XA flags, set those up
//
if(redoflags && (data[0xF] == 2)) {
data[0x10] = data[0x14] = 0;
data[0x11] = data[0x15] = 0;
data[0x12] = data[0x16] = 0x08 | (last ? 0x81 : 0x00);
data[0x13] = data[0x17] = 0;
}
//
// Regenerate ECC/EDC
//
eccedc_generate(data);
//
// Seek and write
//
if(fseeko(bin->f, 2352 * ((off_t)sector), SEEK_SET) != 0) { goto error_f; }
if(fwrite(data, 1, 2352, bin->f) != 2352) { goto error_f; }
}
fflush(bin->f);
goto done;
error_f:
printf("At sector %lu: ", (unsigned long)sector);
printfileerror(bin->f, bin->name);
goto error;
error:
returncode = 1;
goto done;
done:
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
//
// Read or write arbitrary cooked data; returns nonzero on error
//
static int rw_cooked_data(
struct binfile* bin,
uint32_t sector,
uint32_t offset,
uint8_t* data,
size_t size,
const struct cdpatch_options* opt,
int write
) {
int returncode = 0;
//
// Normalize sector/offset, and verify the range
//
if((offset >> 11) > (0xFFFFFFFFLU - sector)) { goto error_range; }
sector += offset >> 11;
offset &= 0x7FF;
if(check_bin_sector_range(bin, sector)) { goto error; }
if(bin->type == BINTYPE_2048) {
//
// Read or write the image file directly
//
if(fseeko(
bin->f, 2048 * ((off_t)sector) + ((off_t)offset), SEEK_SET
) != 0) { goto error_f; }
if(write) {
if(fwrite(data, 1, size, bin->f) != size) { goto error_f; }
} else {
if(fread (data, 1, size, bin->f) != size) { goto error_f; }
}
} else {
//
// Read or write sector-by-sector
//
for(; size; sector++) {
size_t insector = 0x800 - offset;
size_t z = size < insector ? size : insector;
uint8_t* d = read_cooked_sector(bin, sector, opt);
if(!d) { goto error; }
if(write) {
memmove(d + offset, data, z);
if(writeback_cooked_sector(bin, sector, 0, 0)) { goto error; }
} else {
memmove(data, d + offset, z);
}
data += z;
size -= z;
offset = 0;
if(size && (sector == 0xFFFFFFFFLU)) { goto error_range; }
}
}
goto done;
error_f:
printf("At sector %lu: ", (unsigned long)sector);
printfileerror(bin->f, bin->name);
goto error;
error_range:
printf("Error: %s out of range: sector=%lu offset=%lu\n",
write ? "Write" : "Read", (unsigned long)sector, (unsigned long)offset
);
goto error;
error:
returncode = 1;
done:
return returncode;
}
static int read_cooked_data(
struct binfile* bin,
uint32_t sector,
uint32_t offset,
uint8_t* data,
size_t size,
const struct cdpatch_options* opt
) {
return rw_cooked_data(bin, sector, offset, data, size, opt, 0);
}
static int write_cooked_data(
struct binfile* bin,
uint32_t sector,
uint32_t offset,
const uint8_t* data,
size_t size,
const struct cdpatch_options* opt
) {
return rw_cooked_data(bin, sector, offset, (uint8_t*)data, size, opt, 1);
}
////////////////////////////////////////////////////////////////////////////////
//
// Use RIFF if:
// - The sector is mode 0, or invalid
// - The sector is mode 2 and any of the flag bits besides 'data', 'last sector
// of data record', or 'last sector of file' are set.
//
static int should_use_riff_format(const uint8_t* sector) {
if(sector[0xF] == 1) { return 0; }
if(sector[0xF] == 2) {
return
( sector[0x10] != 0) ||
( sector[0x11] != 0) ||
((sector[0x12] & 0x76) != 0) ||
( sector[0x13] != 0);
}
return 1;
}
////////////////////////////////////////////////////////////////////////////////
//
// Returns nonzero on error
//
static int extract_file(
struct binfile* bin,
uint32_t sector,
uint32_t filesize,
time_t modtime,
const char* filename,
const struct cdpatch_options* opt
) {
int returncode = 0;
FILE* f = NULL;
uint8_t* data = NULL;
if(!opt->overwrite && exists(filename)) {
printf("Error: %s already exists (use -o to override)\n", filename);
goto error;
}
f = fopen(filename, "wb");
if(!f) { goto error_f; }
//
// Check for RIFF format
//
if(bin->type == BINTYPE_2352) {
data = read_raw_sector(bin, sector);
if(!data) { goto error; }
}
if(data && should_use_riff_format(data)) {
//
// Extract in RIFF format
//
uint32_t sectors = sectorcount(filesize);
if(sectors > 1826091LU) {
sectors = 1826091LU; // Exceeds uint32_t - just cap it
}
if(opt->verbose) {
printf(
"Extract %7lu %10lu %s (CDXA)\n",
(unsigned long)sector,
(unsigned long)(2352 * sectors + 0x2C),
filename
);
}
//
// Write header
//
{ uint8_t hdr[0x2C];
memset(hdr, 0, sizeof(hdr));
memmove (hdr + 0x00, "RIFF", 4);
set32lsb(hdr + 0x04, 2352 * sectors + 0x2C);
memmove (hdr + 0x08, "CDXA", 4);
set32lsb(hdr + 0x0C, 2352 * sectors);
if(fwrite(hdr, 1, 0x2C, f) != 0x2C) { goto error_f; }
}
//
// Write contents
//
for(; sectors; sector++, sectors--) {
data = read_raw_sector(bin, sector);
if(!data) { goto error; }
if(edc_verify(data)) {
if(opt->enforce_fscheck || opt->verbose) {
printf("%s: %s: CD sector %lu is corrupt%s\n",
opt->enforce_fscheck ? "Error" : "Warning",
filename, (unsigned long)sector,
opt->enforce_fscheck ? fsoverride : ""
);
}
if(opt->enforce_fscheck) { goto error; }
}
if(fwrite(data, 1, 2352, f) != 2352) { goto error_f; }
}
} else {
if(opt->verbose) {
printf(
"Extract %7lu %10lu %s\n",
(unsigned long)sector,
(unsigned long)filesize,
filename
);
}
//
// Extract normally
//
for(; filesize; sector++) {
size_t remain = filesize < 2048 ? filesize : 2048;
data = read_cooked_sector(bin, sector, opt);
if(!data) { goto error; }
if(fwrite(data, 1, remain, f) != remain) { goto error_f; }
filesize -= remain;
}
}
if(f) { fclose(f); f = NULL; }
//
// Set modification time, if it was valid
//
if(modtime != ((time_t)(-1))) {
struct utimbuf b;
b.actime = modtime;
b.modtime = modtime;
if(utime((char*)filename, &b) != 0) {
// Silently fail - preserving modtime shouldn't be considered critical
}
}
goto done;
error_f:
printfileerror(f, filename);
goto error;
error:
returncode = 1;
goto done;
done:
if(f) { fclose(f); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
//
// Returns nonzero on error
// Outputs the new size in *filesize
//
static int insert_file(
struct binfile* bin,
uint32_t sector,
uint32_t* filesize,
const char* filename,
const struct cdpatch_options* opt
) {
int returncode = 0;
uint8_t* data = NULL;
FILE* f = NULL;
uint32_t newfilesize;
uint32_t sectors = sectorcount(*filesize);
f = fopen(filename, "rb");
if(!f) { goto error_f; }
//
// Get the replacement file size
//
{ off_t size;
if(fseeko(f, 0, SEEK_END) != 0) { goto error_f; }
size = ftello(f);
if(size == -1) { goto error_f; }
if(fseeko(f, 0, SEEK_SET) != 0) { goto error_f; }
// Verify size is not out of uint32_t range
if(sizeof(size) > 4 && (size >> 31) > 1) {
printf("Error: %s: Too large for ISO9660 (> 4GiB)\n", filename);
goto error;
}
newfilesize = (uint32_t)size;
}
//
// Check for RIFF format
//
if(bin->type == BINTYPE_2352) {
data = read_raw_sector(bin, sector);
if(!data) { goto error; }
}
if(data && should_use_riff_format(data)) {
//
// Insert in RIFF format
//
if(sectors > 1826091LU) {
sectors = 1826091LU; // Exceeds uint32_t - just cap it
}
if(opt->verbose) {
printf(
"Insert %7lu %10lu %s (CDXA)\n",
(unsigned long)sector,
(unsigned long)newfilesize,
filename
);
}
if(
(newfilesize < 0x2C) ||
((newfilesize - 0x2C) % 2352) != 0
) {
printf("Error: %s: CDXA file has invalid size\n", filename);
goto error;
}
//
// Make sure we're not expanding the file, at all
//
if(newfilesize > (2352 * sectors + 0x2C)) {
printf("Error: %s: Cannot expand CDXA data beyond %lu bytes\n",
filename, (unsigned long)(2352 * sectors)
);
goto error;
}
//
// Read and verify header
//
{ uint8_t hdr[0x2C];
if(fread(hdr, 1, 0x2C, f) != 0x2C) { goto error_f; }
if(
memcmp(hdr + 0x00, "RIFF", 4) ||
memcmp(hdr + 0x08, "CDXA", 4) ||
anynonzero(hdr + 0x10, 0x1C)
) {
printf("Error: %s: RIFF header is invalid\n", filename);
goto error;
}
if(
get32lsb(hdr + 0x04) != (newfilesize ) ||
get32lsb(hdr + 0x0C) != (newfilesize - 0x2C)
) {
printf("Error: %s: RIFF header mismatches actual file size\n",
filename
);
goto error;
}
}
//
// Read contents
//
newfilesize -= 0x2C;
*filesize = (newfilesize / 2352) * 2048;
for(; newfilesize >= 2352; sector++) {
data = read_raw_sector(bin, sector);
if(!data) { goto error; }
// Ignore sync and address
if(fread(data + 0x00F, 1, 0x00F, f) != 0x00F) { goto error_f; }
// Read mode and everything else
if(fread(data + 0x00F, 1, 0x921, f) != 0x921) { goto error_f; }
// Regenerate sync and ECC/EDC
memmove(data, sync_header, sizeof(sync_header));
eccedc_generate(data);
if(writeback_raw_sector(bin, sector)) { goto error; }
newfilesize -= 2352;
}
} else {
//
// Make sure we're not expanding the file too much
//
uint32_t bytelimit = (sectors >= 0x200000LU) ?
((uint32_t)(0xFFFFFFFFLU)) :
((uint32_t)(sectors << 11));
if(newfilesize > bytelimit) {
printf("Error: %s: Cannot expand file beyond %lu bytes\n",
filename, (unsigned long)bytelimit
);
goto error;
}
if(opt->verbose) {
printf(
"Insert %7lu %10lu %s\n",
(unsigned long)sector,
(unsigned long)newfilesize,
filename
);
}
//
// Insert normally
//
*filesize = newfilesize;
for(; newfilesize; sector++) {
size_t remain = newfilesize < 2048 ? newfilesize : 2048;
data = alloc_cooked_sector(bin, sector, opt);
if(!data) { goto error; }
if(fread(data, 1, remain, f) != remain) { goto error_f; }
if(remain < 2048) { memset(data + remain, 0, 2048 - remain); }
if(writeback_cooked_sector(bin, sector, 1, newfilesize <= 2048)) {
goto error;
}
newfilesize -= remain;
}
}
goto done;
error_f:
printfileerror(f, filename);
goto error;
error:
returncode = 1;
goto done;
done:
if(f) { fclose(f); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
//
// ISO9660 data structure offsets
//
enum {
PD_type = 0,
PD_id = 1,
PD_version = 6,
PD_unused1 = 7,
PD_system_id = 8,
PD_volume_id = 40,
PD_unused2 = 72,
PD_volume_space_size = 80,
PD_unused3 = 88,
PD_volume_set_size = 120,
PD_volume_sequence_number = 124,
PD_logical_block_size = 128,
PD_path_table_size = 132,
PD_type_l_path_table = 140,
PD_opt_type_l_path_table = 144,
PD_type_m_path_table = 148,
PD_opt_type_m_path_table = 152,
PD_root_dir_record = 156,
PD_volume_set_id = 190,
PD_publisher_id = 318,
PD_preparer_id = 446,
PD_application_id = 574,
PD_copyright_file_id = 702,
PD_abstract_file_id = 739,
PD_bibliographic_file_id = 776,
PD_creation_date = 813,
PD_modification_date = 830,
PD_expiration_date = 847,
PD_effective_date = 864,
PD_file_structure_version = 881,
PD_unused4 = 882,
PD_application_data = 883,
PD_unused5 = 1395
};
enum {
DR_length = 0,
DR_ext_attr_length = 1,
DR_extent = 2,
DR_size = 10,
DR_date = 18,
DR_flags = 25,
DR_file_unit_size = 26,
DR_interleave = 27,
DR_volume_sequence_number = 28,
DR_name_len = 32,
DR_name = 33
};
////////////////////////////////////////////////////////////////////////////////
static void printsafestring(const uint8_t* src, size_t size) {
size_t i;
for(i = 0; i < size; i++) {
int c = src[i];
if(!c) { break; }
if(isprint(c)) {
fputc(c, stdout);
}
}
}
////////////////////////////////////////////////////////////////////////////////
//
// Node: Info about a ISO9660 directory or file
//
struct node {
//
// Location of the ISO DR representing this node
//
uint32_t dr_sector;
uint32_t dr_ofs;
//
// Info copied from the ISO DR
//
uint8_t name[256];
int8_t isdir;
uint32_t sector;
uint32_t size;
time_t modtime;
//
// Internal data
//
uint32_t depth;
struct node* up;
//
// Current state, if this is a directory and we're reading it
//
uint32_t dirread;
};
static void rewindnode(struct node* n) { n->dirread = 0; }
static void freesubnodes(struct node* n, struct node* root) {
while(n && n != root) {
struct node* up = n->up;
free(n);
n = up;
}
}
static void printnodename(struct node* n) {
struct node* prev = NULL;
//
// Special case root directory
//
if(n && !n->up) {
printf("/");
} else {
int num = 0;
//
// Momentarily reverse node order
//
while(n) {
struct node* up = n->up;
n->up = prev;
prev = n;
n = up;
}
n = prev;
prev = NULL;
//
// Reverse node order again while printing names
//
while(n) {
struct node* up = n->up;
n->up = prev;
if(strcmp((const char*)(n->name), ".")) {
if(num++) { printf("/"); }
printsafestring(n->name, strlen((const char*)(n->name)));
}
prev = n;
n = up;
}
}
}
static size_t nodenamelen(const struct node* n) {
size_t len = 0;
for(; n && n->up; n = n->up) {
len += strlen((const char*)(n->name));
if(n->up->up) {
len++; // directory separator
}
}
return len;
}
static void copynodename(char* end, const struct node* n) {
for(; n && n->up; n = n->up) {
size_t len = strlen((const char*)(n->name));
memmove(end - len, n->name, len);
end -= len;
if(n->up->up) {
*(--end) = '/';
}
}
}
////////////////////////////////////////////////////////////////////////////////
//
// Read an ISO9660 directory record
//
// Returns the number of bytes in the record, 0 on end, or -1 on error
//
static int read_iso_dr(
struct binfile* bin,
struct node* n,
uint32_t sector,
uint32_t ofs,
uint32_t size,
const struct cdpatch_options* opt
) {
uint8_t dr[256];
uint32_t little;
uint32_t big;
size_t i, namelen;
n->dr_sector = sector;
n->dr_ofs = ofs;
n->name[0] = 0;
n->isdir = 0;
n->sector = 0;
n->size = 0;
n->modtime = (time_t)(-1);
rewindnode(n);
if(ofs >= size) { return 0; }
//
// Read DR length
//
if(read_cooked_data(bin, sector, ofs, dr, 1, opt)) { return -1; }
if(dr[DR_length] == 0) { return 0; }
if(dr[DR_length] > (size - ofs)) {
dr[DR_length] = (uint8_t)(size - ofs);
goto malformed;
}
if(dr[DR_length] < DR_name) { goto malformed; }
//
// Read DR
//
if(read_cooked_data(bin, sector, ofs+1, dr+1, dr[DR_length]-1, opt)) {
return -1;
}
if(dr[DR_name_len] > (dr[DR_length] - DR_name)) { goto malformed; }
if(dr[DR_name_len] == 0) { goto malformed; }
namelen = dr[DR_name_len];
//
// Get name (but don't normalize yet)
//
memmove(n->name, dr + DR_name, namelen);
n->name[namelen] = 0;
//
// Get directory flag
//
n->isdir = (dr[DR_flags] & 0x02) != 0;
//
// Normalize name, checking it for errors in the process
//
if(namelen == 1 && n->name[0] == 0) {
n->name[0] = '.';
} else if(namelen == 1 && n->name[0] == 1) {
n->name[0] = '.';
n->name[1] = '.';
n->name[2] = 0;
namelen = 2;
} else {
for(i = 0; i < namelen; i++) {
uint8_t c = n->name[i];
if(
(c >= 'a' && c <= 'z') ||
(c >= '0' && c <= '9') ||
(c == '_')
) {
// acceptable character
} else if(c >= 'A' && c <= 'Z') {
// uppercase alpha - convert to lowercase
c += ('a' - 'A');
} else if(c == '.') {
// if the next character is the end, or version number, then
// eat the dot
if(n->name[i + 1] == 0 || n->name[i + 1] == ';') {
memmove(n->name + i, n->name + i + 1, namelen - i);
namelen--;
i--;
continue;
}
} else if(c == ';') {
// semicolon - strip the rest of the name if ";1"
if(i == (namelen - 2) && n->name[i + 1] == '1') {
c = 0;
namelen = i;
}
} else {
// not ok - just replace with an underscore
c = '_';
}
n->name[i] = c;
}
}
//
// Get sector
//
little = get32lsb(dr + DR_extent + 0);
big = get32msb(dr + DR_extent + 4);
if(little == big || opt->little) {
n->sector = little;
} else if(opt->big) {
n->sector = big;
} else {
goto error_mismatch;
}
//
// Get size
//
little = get32lsb(dr + DR_size + 0);
big = get32msb(dr + DR_size + 4);
if(little == big || opt->little) {
n->size = little;
} else if(opt->big) {
n->size = big;
} else {
goto error_mismatch;
}
//
// Get modified time
//
{ int32_t year = ((uint8_t)(dr[DR_date + 0]));
int32_t month = ((uint8_t)(dr[DR_date + 1]));
int32_t day = ((uint8_t)(dr[DR_date + 2]));
int32_t hour = ((uint8_t)(dr[DR_date + 3]));
int32_t minute = ((uint8_t)(dr[DR_date + 4]));
int32_t second = ((uint8_t)(dr[DR_date + 5]));
int32_t gmtofs = (( int8_t)(dr[DR_date + 6]));
year -= 70; // year = Years since 1970
if(year < 0) {
// Before 1970: Invalid
n->modtime = (time_t)(-1);
} else {
int32_t i;
// Calculate modtime = days since 1970
n->modtime = year;
n->modtime *= 365;
// Adjust for leap years
if(year > 2) {
n->modtime += (year + 1) / 4;
}
if(((((year+2) % 4)) == 0) && (month > 2)) {
n->modtime += 1;
}
// Add days from previous months
for(i = 1; i < month; i++) {
static const int32_t md[] = {
31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
};
n->modtime += md[i - 1];
}
// Add days from this month
n->modtime += day - 1;
// Multiply out modtime from days into seconds
n->modtime *= 24;
n->modtime += hour;
n->modtime *= 60;
n->modtime += minute;
n->modtime *= 60;
n->modtime += second;
// Adjust modtime into GMT using the provided offset
if(gmtofs >= -52 && gmtofs <= 52) {
n->modtime -= gmtofs * 15 * 60;
}
}
}
//
// Success: Return the length of the directory record
//
return dr[DR_length];
malformed:
if(opt->enforce_fscheck || opt->verbose) {
printf("%s: ",
opt->enforce_fscheck ? "Error" : "Warning"
);
printnodename(n);
printf(": Malformed directory record%s\n",
opt->enforce_fscheck ? fsoverride : ""
);
}
if(opt->enforce_fscheck) { return -1; }
return dr[DR_length];
error_mismatch:
printf("Error: ");
printnodename(n);
printf(": Mismatched little vs. big-endian metadata\n");
printf("Use -le or -be to override\n");
return -1;
}
////////////////////////////////////////////////////////////////////////////////
//
// Get the next directory entry in a directory
// Returns nonzero on error
// Returns zero, but NULL node, if nothing was found
//
static int findnext(
struct binfile* bin,
struct node* n,
struct node** out,
const struct cdpatch_options* opt
) {
int returncode = 0;
//
// Allocate a new node
//
*out = malloc(sizeof(struct node));
if(!(*out)) { goto error_mem; }
(*out)->up = n;
(*out)->depth = n->depth + 1;
//
// Read node data from DR
//
returncode = read_iso_dr(bin, *out, n->sector, n->dirread, n->size, opt);
if(returncode < 0) { goto error; }
if(returncode == 0) { goto notfound; }
//
// Advance
//
n->dirread += returncode;
returncode = 0;
goto done;
error_mem:
printf("%s", oom);
goto error;
error:
returncode = 1;
goto notfound;
notfound:
if(*out) { free(*out); *out = NULL; }
goto done;
done:
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
static int pathsep(char c) { return c == '/' || c == '\\'; }
static int pathend(char c) { return c == 0 || pathsep(c); }
////////////////////////////////////////////////////////////////////////////////
//
// Pass f=NULL to get the boot area
//
static void dofile(
struct binfile* bin,
struct node* filenode,
const struct cdpatch_options* opt,
int automatic,
uint32_t* numerrors,
uint32_t* numsuccesses
) {
//
// Construct base filename from base name and node name
//
char* filename = NULL;
size_t basedirlen = strlen(opt->basedir);
size_t addsep = !(basedirlen && pathsep(opt->basedir[basedirlen - 1]));
size_t filenamelen = basedirlen + addsep +
(filenode ? nodenamelen(filenode) : 4);
filename = malloc(filenamelen + 1);
if(!filename) { goto error_mem; }
memmove(filename, opt->basedir, basedirlen);
if(addsep) { filename[basedirlen] = '/'; }
if(filenode) {
copynodename(filename + filenamelen, filenode);
} else {
memmove(filename + filenamelen - 4, "boot", 4);
}
filename[filenamelen] = 0;
if(opt->extract) {
//
// Ensure that all parent directories are created
//
char* t = filename;
while(*t) {
while(pathsep(*t)) { t++; }
while(!pathend(*t)) { t++; }
if(pathsep(*t)) {
char c = *t;
*t = 0;
mkdir(filename); // OK if it doesn't succeed
*t = c;
}
}
//
// Extract
//
if(filenode) {
if(extract_file(
bin,
filenode->sector,
filenode->size,
filenode->modtime,
filename,
opt
)) { goto error; }
} else {
if(extract_file(bin, 0, 32768, (time_t)(-1), filename, opt)) {
goto error;
}
}
(*numsuccesses)++;
} else if(opt->insert && (!automatic || exists(filename))) {
//
// Insert
//
if(filenode) {
uint32_t newsize = filenode->size;
if(insert_file(bin, filenode->sector, &newsize, filename, opt)) {
goto error;
}
//
// If the size changed, update the size in the DR
//
if(newsize != filenode->size) {
uint8_t sz[8];
set32lsb(sz + 0, newsize);
set32msb(sz + 4, newsize);
if(write_cooked_data(
bin,
filenode->dr_sector,
filenode->dr_ofs + DR_size,
sz,
8,
opt
)) { goto error; }
}
} else {
uint32_t newsize = 32768;
if(insert_file(bin, 0, &newsize, filename, opt)) {
goto error;
}
}
(*numsuccesses)++;
}
goto done;
error_mem:
printf("%s", oom);
goto error;
error:
(*numerrors)++;
goto done;
done:
if(filename) { free(filename); }
}
////////////////////////////////////////////////////////////////////////////////
//
// Recursively walk a directory
//
static void walkdirectory(
struct binfile* bin,
struct node* root,
const struct cdpatch_options* opt,
uint32_t* numerrors,
uint32_t* numsuccesses
) {
struct node* n = root;
struct node* f = NULL;
rewindnode(n);
for(;;) {
if(findnext(bin, n, &f, opt)) { goto error; }
if(!f) {
if(n == root) {
// Done with entire tree walk
break;
} else {
// Back to previous directory
f = n;
n = n->up;
freesubnodes(f, n);
f = NULL;
}
} else if(!f->name[0]) {
//
// Probably a malformed entry which was ignored
//
} else if(f->isdir) {
if(
strcmp((const char*)(f->name), ".") &&
strcmp((const char*)(f->name), "..")
) {
// Ensure this directory didn't appear anywhere up the chain
struct node* t;
for(t = n; t != root; t = t->up) {
if(t->sector == f->sector) { break; }
}
if(t->sector == f->sector) {
if(opt->enforce_fscheck || opt->verbose) {
printf("%s: Infinite recursion: ",
opt->enforce_fscheck ? "Error" : "Warning"
);
printnodename(f);
printf(" points to ");
printnodename(t);
printf("%s\n",
opt->enforce_fscheck ? fsoverride : ""
);
}
if(opt->enforce_fscheck) { goto error; }
// Ignore the error, but we still can't descend into it
} else {
// Check depth limit.
// Allow out-of-ISO9660 spec, but impose our own limit
if(f->depth > max_path_depth) {
printf("Error: ");
printnodename(f);
printf(": Path is too deep\n");
goto error;
}
// Descend into this directory
n = f;
}
}
} else {
//
// This is a file
//
dofile(bin, f, opt, 1, numerrors, numsuccesses);
}
freesubnodes(f, n);
f = NULL;
}
goto done;
error:
(*numerrors)++;
goto done;
done:
freesubnodes(f, n);
freesubnodes(n, root);
}
////////////////////////////////////////////////////////////////////////////////
static int arenamesequal(const char* a, const char* b) {
for(;;) {
int ca = (*a++) & 0xff;
int cb = (*b++) & 0xff;
if(pathend(ca) && pathend(cb)) { return 1; }
if(pathend(ca)) { return 0; }
if(pathend(cb)) { return 0; }
ca = tolower(ca);
cb = tolower(cb);
if(ca != cb) { return 0; }
}
}
////////////////////////////////////////////////////////////////////////////////
//
// Find a file or directory in the ISO9660 filesystem
// Returns NULL if not found
//
static struct node* findnode(
struct binfile* bin,
struct node* root,
const char* filename,
const struct cdpatch_options* opt
) {
struct node* n = root;
struct node* f = NULL;
const char* p = filename;
const char* next = p;
while(pathsep(*p)) { p++; }
for(; *p; p = next) {
//
// Figure out the next path component, if any
//
next = p;
while(!pathend(*next)) { next++; }
while(pathsep(*next)) { next++; }
//
// Special case "." and ".."
//
if(p[0] == '.' && pathend(p[1])) {
continue;
}
if(p[0] == '.' && p[1] == '.' && pathend(p[2])) {
if(n != root && n->up) {
f = n;
n = n->up;
freesubnodes(f, n);
f = NULL;
}
continue;
}
//
// Find n = path component p in directory node n
//
rewindnode(n);
for(;;) {
if(findnext(bin, n, &f, opt)) { goto error; }
if(!f) { goto error_pathnotfound; }
if(
arenamesequal(p, (const char*)(f->name)) &&
(f->isdir || !(*next))
) {
n = f;
break;
}
freesubnodes(f, n);
f = NULL;
}
}
return n;
error_pathnotfound:
printf("Error: %s: Path not found in ISO\n", filename);
goto error;
error:
freesubnodes(f, n);
freesubnodes(n, root);
return NULL;
}
////////////////////////////////////////////////////////////////////////////////
static void visit_arg(
struct binfile* bin,
struct node* root,
const char* filename,
const struct cdpatch_options* opt,
uint32_t* numerrors,
uint32_t* numsuccesses
) {
struct node* n = NULL;
//
// First, find the node in the ISO9660 filesystem
//
n = findnode(bin, root, filename, opt);
if(!n) { goto error; }
if(n->isdir) {
//
// If it's a directory:
//
// If we're not recursing, that's an error
//
if(!opt->recurse) {
printf("Error: %s: Is a directory\n", filename);
goto error;
}
//
// Walk the directory
//
walkdirectory(bin, n, opt, numerrors, numsuccesses);
} else {
//
// If it's a file, visit it
//
dofile(bin, n, opt, 0, numerrors, numsuccesses);
}
goto done;
error:
(*numerrors)++;
goto done;
done:
freesubnodes(n, root);
}
////////////////////////////////////////////////////////////////////////////////
static int cdpatch(const struct cdpatch_options* opt) {
int returncode = 0;
struct binfile bin;
struct node* root = NULL;
int i;
uint32_t numerrors = 0;
uint32_t numsuccesses = 0;
if(bin_init(&bin)) { goto error; }
bin.name = opt->binname;
//
// Attempt to open bin/iso file
//
bin.f = fopen(bin.name, opt->insert ? "r+b" : "rb");
if(!bin.f) { goto error_bin; }
if(bintype_detect(&bin)) { goto error; }
if(opt->verbose) {
printf("Image file: %s\n", opt->binname);
printf("Format: ");
switch(bin.type) {
case BINTYPE_2048: printf("ISO (2048-byte sectors)\n"); break;
case BINTYPE_2352: printf("BIN (2352-byte sectors)\n"); break;
}
}
//
// Read primary descriptor
//
{ uint8_t* data = read_cooked_sector(&bin, 16, opt);
if(!data) { goto error; }
if(opt->verbose) {
printf("System ID: ");
printsafestring(data + PD_system_id, 32);
printf("\nVolume ID: ");
printsafestring(data + PD_volume_id, 32);
printf("\n");
}
}
//
// Insert or extract boot area, if desired
//
if(opt->boot) {
dofile(&bin, NULL, opt, 0, &numerrors, &numsuccesses);
}
//
// Retrive root directory info
//
root = malloc(sizeof(struct node));
if(!root) { goto error_mem; }
root->depth = 0;
root->up = NULL;
i = read_iso_dr(&bin, root, 16, PD_root_dir_record, 2048, opt);
if(i < 0) { goto error; }
if(i == 0) {
printf("Error: Root directory descriptor is missing\n");
goto error;
}
//
// Visit each of the arguments
//
for(i = 0; i < opt->files_count; i++) {
const char* file = opt->files[i];
if(*file) { // If non-empty
visit_arg(&bin, root, file, opt, &numerrors, &numsuccesses);
}
}
if(numsuccesses || !numerrors) {
printf("%lu file%s %s\n",
(unsigned long)numsuccesses,
numsuccesses != 1 ? "s" : "",
opt->extract ? "extracted" : "inserted"
);
}
if(numerrors) {
printf("%lu error%s encountered\n",
(unsigned long)numerrors,
numerrors != 1 ? "s" : ""
);
}
returncode = (numerrors != 0);
goto done;
error_mem:
printf("%s", oom);
goto error;
error_bin:
printfileerror(bin.f, bin.name);
goto error;
error:
returncode = 1;
goto done;
done:
if(root) { free(root); }
bin_quit(&bin);
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
static int checkboth(int a, int b, const char* opa, const char* opb) {
if(a && b) {
printf("Error: Cannot specify both %s and %s\n", opa, opb);
return 1;
}
return 0;
}
static int checkeither(int a, int b, const char* opa, const char* opb) {
if((!a) && (!b)) {
printf("Error: Must specify either %s or %s\n", opa, opb);
return 1;
}
return 0;
}
////////////////////////////////////////////////////////////////////////////////
int main(int argc, char** argv) {
int returncode = 0;
static const char* default_files[1] = { "." };
static const int default_files_count = 1;
const char* warn_missing = NULL;
struct cdpatch_options opt;
int i;
normalize_argv0(argv[0]);
memset(&opt, 0, sizeof(opt));
//
// Enforce filesystem checks by default (unless overridden with -f)
//
opt.enforce_fscheck = 1;
//
// Check options
//
if(argc == 1) { goto usage; }
for(i = 1; i < argc; i++) {
if(argv[i][0] == '-') {
// An option
if(!strcmp(argv[i], "--")) {
// No more options
i++;
break;
} else if(!strcmp(argv[i], "-i")) {
if(opt.insert) { goto error_dup; }
if(i >= (argc - 1)) { goto error_missing; }
if(argv[i+1][0] == '-') { warn_missing = argv[i]; }
opt.insert = 1;
opt.binname = argv[++i];
continue;
} else if(!strcmp(argv[i], "-x")) {
if(opt.extract) { goto error_dup; }
if(i >= (argc - 1)) { goto error_missing; }
if(argv[i+1][0] == '-') { warn_missing = argv[i]; }
opt.extract = 1;
opt.binname = argv[++i];
continue;
} else if(!strcmp(argv[i], "-d")) {
if(opt.basedir) { goto error_dup; }
if(i >= (argc - 1)) { goto error_missing; }
if(argv[i+1][0] == '-') { warn_missing = argv[i]; }
opt.basedir = argv[++i];
continue;
} else if(!strcmp(argv[i], "-be")) {
opt.big = 1;
continue;
} else if(!strcmp(argv[i], "-le")) {
opt.little = 1;
continue;
} else if(!strcmp(argv[i], "-boot")) {
opt.boot = 1;
continue;
} else if(!strcmp(argv[i], "-f")) {
opt.enforce_fscheck = 0;
continue;
} else if(!strcmp(argv[i], "-o")) {
opt.overwrite = 1;
continue;
} else if(!strcmp(argv[i], "-v")) {
opt.verbose = 1;
continue;
} else if(!strcmp(argv[i], "-r")) {
opt.recurse = 1;
continue;
}
printf("Unknown option: %s\n", argv[i]);
goto error_usage;
} else {
// Not an option - stop here
break;
}
}
if(checkeither(opt.insert, opt.extract ,"-i","-x")) { goto error_usage; }
warn_missing = NULL;
if(checkboth (opt.big , opt.little ,"-be","-le")) { goto error_usage; }
if(checkboth (opt.insert, opt.extract ,"-i","-x")) { goto error_usage; }
if(checkboth (opt.insert, opt.overwrite,"-i","-o")) { goto error_usage; }
//
// If base directory wasn't specified, default to "."
//
if(!opt.basedir) { opt.basedir = "."; }
//
// If no files or -boot were specified, default to "-r ."
//
if(i >= argc && !opt.boot) {
opt.recurse = 1;
opt.files = default_files;
opt.files_count = default_files_count;
} else {
opt.files = (const char**)(argv + i);
opt.files_count = (argc - i);
}
//
// Initialize ECC/EDC tables
//
eccedc_init();
//
// Go
//
returncode = cdpatch(&opt);
goto done;
error_dup:
printf("Error: Specified %s twice\n", argv[i]);
goto error_usage;
error_missing:
printf("Error: Missing parameter for %s\n", argv[i]);
goto error_usage;
error_usage:
if(warn_missing) {
printf("(Missing parameter after %s?)\n", warn_missing);
}
printf("\n");
goto usage;
usage:
banner();
printf(
"Usage:\n"
" To insert: %s -i bin_or_iso [options] [files...]\n"
" To extract: %s -x bin_or_iso [options] [files...]\n"
"\nOptions:\n"
" -be Favor big-endian values in ISO9660 metadata\n"
" -boot Insert or extract boot area\n"
" -d dir Set the base directory for inserted or extracted files\n"
" (defaults to .)\n"
" -f Skip filesystem consistency checks\n"
" -le Favor little-endian values in ISO9660 metadata\n"
" -o Force overwrite when extracting files\n"
" -r Recurse into subdirectories\n"
" -v Verbose\n",
argv[0],
argv[0]
);
goto error;
error:
returncode = 1;
goto done;
done:
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/common.h 0000644 0001750 0001750 00000036375 11731303760 016005 0 ustar corlett corlett #ifndef __CMDPACK_COMMON_H__
#define __CMDPACK_COMMON_H__
////////////////////////////////////////////////////////////////////////////////
//
// Common headers for Command-Line Pack programs
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
// Disable fopen() warnings on VC++. It means well...
#define _CRT_SECURE_NO_WARNINGS
// Try to enable 64-bit file offsets on platforms where it's optional
#define _LARGEFILE64_SOURCE 1
#define __USE_FILE_OFFSET64 1
#define __USE_LARGEFILE64 1
#define _FILE_OFFSET_BITS 64
// Try to enable long filename support on Watcom
#define __WATCOM_LFN__ 1
// Convince MinGW that we want to glob arguments
#ifdef __MINGW32__
int _dowildcard = -1;
#endif
////////////////////////////////////////////////////////////////////////////////
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
// MSC toolchains use sys/utime.h; everything else uses utime.h
#if defined(_MSC_VER)
#include
#else
#include
#endif
// Try to bring in unistd.h if possible
#if !defined(__TURBOC__) && !defined(_MSC_VER)
#include
#endif
// Bring in direct.h if we need to; sometimes mkdir/rmdir is defined here
#if defined(__WATCOMC__) || defined(_MSC_VER)
#include
#endif
// Fill in S_ISDIR
#if !defined(_POSIX_VERSION) && !defined(S_ISDIR)
#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
#endif
#if defined(__TURBOC__) || defined(__WATCOMC__) || defined(__MINGW32__) || defined(_MSC_VER)
//
// Already have a single-argument mkdir()
//
#else
//
// Provide a single-argument mkdir()
//
#define mkdir(a) mkdir(a, S_IRWXU | S_IRWXG | S_IRWXO)
#endif
////////////////////////////////////////////////////////////////////////////////
//
// Enforce large memory model for 16-bit DOS targets
//
#if defined(__MSDOS__) || defined(MSDOS)
#if defined(__TURBOC__) || defined(__WATCOMC__)
#if !defined(__LARGE__)
#error This is not the memory model we should be using!
#endif
#endif
#endif
////////////////////////////////////////////////////////////////////////////////
//
// Try to figure out integer types
//
#if defined(_STDINT_H) || defined(_EXACT_WIDTH_INTS)
// _STDINT_H_ - presume stdint.h has already been included
// _EXACT_WIDTH_INTS - OpenWatcom already provides int*_t in sys/types.h
#elif defined(__STDC__) && __STDC__ && __STDC_VERSION__ >= 199901L
// Assume C99 compliance when the compiler specifically tells us it is
#include
#elif defined(_MSC_VER)
// On Visual Studio, use its integral types
typedef signed __int8 int8_t;
typedef unsigned __int8 uint8_t;
typedef signed __int16 int16_t;
typedef unsigned __int16 uint16_t;
typedef signed __int32 int32_t;
typedef unsigned __int32 uint32_t;
#else
// Guess integer sizes from limits.h
//
// int8_t
//
#ifndef __int8_t_defined
#if SCHAR_MIN == -128 && SCHAR_MAX == 127 && UCHAR_MAX == 255
typedef signed char int8_t;
#else
#error Unknown how to define int8_t!
#endif
#endif
//
// uint8_t
//
#ifndef __uint8_t_defined
#if SCHAR_MIN == -128 && SCHAR_MAX == 127 && UCHAR_MAX == 255
typedef unsigned char uint8_t;
#else
#error Unknown how to define uint8_t!
#endif
#endif
//
// int16_t
//
#ifndef __int16_t_defined
#if SHRT_MIN == -32768 && SHRT_MAX == 32767 && USHRT_MAX == 65535
typedef signed short int16_t;
#else
#error Unknown how to define int16_t!
#endif
#endif
//
// uint16_t
//
#ifndef __uint16_t_defined
#if SHRT_MIN == -32768 && SHRT_MAX == 32767 && USHRT_MAX == 65535
typedef unsigned short uint16_t;
#else
#error Unknown how to define uint16_t!
#endif
#endif
//
// int32_t
//
#ifndef __int32_t_defined
#if INT_MIN == -2147483648 && INT_MAX == 2147483647 && UINT_MAX == 4294967295
typedef signed int int32_t;
#elif LONG_MIN == -2147483648 && LONG_MAX == 2147483647 && ULONG_MAX == 4294967295
typedef signed long int32_t;
#else
#error Unknown how to define int32_t!
#endif
#endif
//
// uint32_t
//
#ifndef __uint32_t_defined
#if INT_MIN == -2147483648 && INT_MAX == 2147483647 && UINT_MAX == 4294967295
typedef unsigned int uint32_t;
#elif LONG_MIN == -2147483648 && LONG_MAX == 2147483647 && ULONG_MAX == 4294967295
typedef unsigned long uint32_t;
#else
#error Unknown how to define uint32_t!
#endif
#endif
#endif
//
// There are some places in the code where it's assumed 'long' can hold at least
// 32 bits. Verify that here:
//
#if LONG_MAX < 2147483647 || ULONG_MAX < 4294967295
#error long type must be at least 32 bits!
#endif
////////////////////////////////////////////////////////////////////////////////
//
// Figure out how big file offsets should be
//
#if defined(_OFF64_T_) || defined(_OFF64_T_DEFINED) || defined(__off64_t_defined)
//
// We have off64_t
// Regular off_t may be smaller, so check this first
//
#ifdef off_t
#undef off_t
#endif
#ifdef fseeko
#undef fseeko
#endif
#ifdef ftello
#undef ftello
#endif
#define off_t off64_t
#define fseeko fseeko64
#define ftello ftello64
#elif defined(_OFF_T) || defined(__OFF_T_TYPE) || defined(__off_t_defined) || defined(_OFF_T_DEFINED_)
//
// We have off_t
//
#else
//
// Assume offsets are just 'long'
//
#ifdef off_t
#undef off_t
#endif
#ifdef fseeko
#undef fseeko
#endif
#ifdef ftello
#undef ftello
#endif
#define off_t long
#define fseeko fseek
#define ftello ftell
#endif
//
// Add the ability to read off_t
// (assumes off_t is a signed type)
//
off_t strtoofft(const char* s_start, char** endptr, int base) {
off_t max =
((((off_t)1) << ((sizeof(off_t)*8)-2)) - 1) +
((((off_t)1) << ((sizeof(off_t)*8)-2)) );
off_t min = ((-1) - max);
const char* s = s_start;
off_t accumulator;
off_t limit_tens;
off_t limit_ones;
int c;
int negative = 0;
int anyinput;
do {
c = *s++;
} while(isspace(c));
if(c == '-') {
negative = 1;
c = *s++;
} else if (c == '+') {
c = *s++;
}
if(
(base == 0 || base == 16) &&
c == '0' && (*s == 'x' || *s == 'X')
) {
c = s[1];
s += 2;
base = 16;
}
if(!base) {
base = (c == '0') ? 8 : 10;
}
limit_ones = max % ((off_t)base);
limit_tens = max / ((off_t)base);
if(negative) {
limit_ones++;
if(limit_ones >= base) { limit_ones = 0; limit_tens++; }
}
for(accumulator = 0, anyinput = 0;; c = *s++) {
if(isdigit(c)) {
c -= '0';
} else if(isalpha(c)) {
c -= isupper(c) ? 'A' - 10 : 'a' - 10;
} else {
break;
}
if(c >= base) { break; }
if(
(anyinput < 0) ||
(accumulator < 0) ||
(accumulator > limit_tens) ||
(accumulator == limit_tens && c > limit_ones)
) {
anyinput = -1;
} else {
anyinput = 1;
accumulator *= base;
accumulator += c;
}
}
if(anyinput < 0) {
accumulator = negative ? min : max;
errno = ERANGE;
} else if(negative) {
accumulator = -accumulator;
}
if(endptr) {
*endptr = (char*)(anyinput ? (char*)s - 1 : s_start);
}
return accumulator;
}
//
// Add the ability to print off_t
//
void fprinthex(FILE* f, off_t off, int min_digits) {
unsigned anydigit = 0;
int place;
for(place = 2 * sizeof(off_t) - 1; place >= 0; place--) {
if(sizeof(off_t) > (((size_t)(place)) / 2)) {
unsigned digit = (off >> (4 * place)) & 0xF;
anydigit |= digit;
if(anydigit || place < min_digits) {
fputc("0123456789ABCDEF"[digit], f);
}
}
}
}
static void fprintdec_digit(FILE* f, off_t off) {
if(off == 0) { return; }
if(off >= 10) {
fprintdec_digit(f, off / ((off_t)10));
off %= ((off_t)10);
}
fputc('0' + off, f);
}
void fprintdec(FILE* f, off_t off) {
if(off == 0) {
fputc('0', f);
return;
}
if(off < 0) {
fputc('-', f);
off = -off;
if(off < 0) {
off_t ones = off % ((off_t)10);
off /= ((off_t)10);
off = -off;
fprintdec_digit(f, off);
fputc('0' - ones, f);
return;
}
}
fprintdec_digit(f, off);
}
////////////////////////////////////////////////////////////////////////////////
//
// Define truncate() for systems that don't have it
//
#if !defined(_POSIX_VERSION)
#if (defined(__MSDOS__) || defined(MSDOS)) && (defined(__TURBOC__) || defined(__WATCOMC__))
#include
#include
#include
int truncate(const char *filename, off_t size) {
if(size < 0) {
errno = EINVAL;
return -1;
}
//
// Extend (or do nothing) if necessary
//
{ off_t end;
FILE* f = fopen(filename, "rb");
if(!f) {
return -1;
}
if(fseeko(f, 0, SEEK_END) != 0) {
fclose(f);
return -1;
}
end = ftello(f);
if(end <= size) {
for(; end < size; end++) {
if(fputc(0, f) == EOF) {
fclose(f);
return -1;
}
}
fclose(f);
return 0;
}
fclose(f);
}
//
// Shrink if necessary (DOS-specific call)
//
{ int doshandle = 0;
unsigned nwritten = 0;
if(_dos_open(filename, O_WRONLY, &doshandle)) {
return -1;
}
if(lseek(doshandle, size, SEEK_SET) == -1L) {
_dos_close(doshandle);
return -1;
}
if(_dos_write(doshandle, &doshandle, 0, &nwritten)) {
_dos_close(doshandle);
return -1;
}
_dos_close(doshandle);
}
//
// Success
//
return 0;
}
#elif (defined(_WIN32) && defined(_MSC_VER))
#if defined(_MSC_VER)
// Disable extension warnings for and friends
#pragma warning (disable: 4226)
#endif
#include
#ifndef INVALID_SET_FILE_POINTER
#define INVALID_SET_FILE_POINTER ((DWORD)(-1))
#endif
int truncate(const char *filename, off_t size) {
if(size < 0) {
errno = EINVAL;
return -1;
}
//
// Extend (or do nothing) if necessary
//
{ off_t end;
FILE* f = fopen(filename, "rb");
if(!f) {
return -1;
}
if(fseeko(f, 0, SEEK_END) != 0) {
fclose(f);
return -1;
}
end = ftello(f);
if(end <= size) {
for(; end < size; end++) {
if(fputc(0, f) == EOF) {
fclose(f);
return -1;
}
}
fclose(f);
return 0;
}
fclose(f);
}
//
// Shrink if necessary (Windows-specific call)
//
{ HANDLE f = CreateFile(
filename,
GENERIC_WRITE,
0,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL
);
if(f == INVALID_HANDLE_VALUE) {
return -1;
}
if(size > ((off_t)0x7FFFFFFFL)) {
// use fancy 64-bit SetFilePointer
LONG lo = size;
LONG hi = size >> 32;
if(SetFilePointer(f, lo, &hi, FILE_BEGIN) == INVALID_SET_FILE_POINTER) {
CloseHandle(f);
return -1;
}
} else {
// use plain 32-bit SetFilePointer
if(SetFilePointer(f, size, NULL, FILE_BEGIN) == INVALID_SET_FILE_POINTER) {
CloseHandle(f);
return -1;
}
}
if(!SetEndOfFile(f)) {
CloseHandle(f);
return -1;
}
}
//
// Success
//
return 0;
}
#endif
#endif // !defined(_POSIX_VERSION)
////////////////////////////////////////////////////////////////////////////////
//
// Normalize argv[0]
//
void normalize_argv0(char* argv0) {
size_t i;
size_t start = 0;
int c;
for(i = 0; argv0[i]; i++) {
if(argv0[i] == '/' || argv0[i] == '\\') {
start = i + 1;
}
}
i = 0;
do {
c = ((unsigned char)(argv0[start + i]));
if(c == '.') { c = 0; }
if(c != 0) { c = tolower(c); }
argv0[i++] = c;
} while(c != 0);
}
////////////////////////////////////////////////////////////////////////////////
void printfileerror(FILE* f, const char* name) {
int e = errno;
printf("Error: ");
if(name) { printf("%s: ", name); }
printf("%s\n", f && feof(f) ? "Unexpected end-of-file" : strerror(e));
}
////////////////////////////////////////////////////////////////////////////////
#if defined(_WIN32)
//
// Detect if the user double-clicked on the .exe rather than executing this from
// the command line, and if so, display a warning and wait for input before
// exiting
//
#include
static HWND getconsolewindow(void) {
HWND hConsoleWindow = NULL;
HANDLE k32;
//
// See if GetConsoleWindow is available (Windows 2000 or later)
//
k32 = GetModuleHandle(TEXT("kernel32.dll"));
if(k32) {
typedef HWND (* WINAPI gcw_t)(void);
gcw_t gcw = (gcw_t)GetProcAddress(k32, TEXT("GetConsoleWindow"));
if(gcw) {
hConsoleWindow = gcw();
}
}
//
// There is an alternative method that involves FindWindow, but it's too
// cumbersome for just printing a warning.
//
return hConsoleWindow;
}
void commandlinewarning(void) {
HWND hConsoleWindow;
DWORD processId = 0;
//
// This trick doesn't work in Win9x
//
if(GetVersion() >= ((DWORD)0x80000000LU)) { return; }
//
// See if the console window belongs to my own process
//
hConsoleWindow = getconsolewindow();
if(!hConsoleWindow) { return; }
GetWindowThreadProcessId(hConsoleWindow, &processId);
if(GetCurrentProcessId() == processId) {
printf(
"\n"
"Note: This is a command-line application.\n"
"It was meant to run from a Windows command prompt.\n\n"
"Press ENTER to close this window..."
);
fflush(stdout);
fgetc(stdin);
}
}
#else
void commandlinewarning(void) {}
#endif
////////////////////////////////////////////////////////////////////////////////
//
// Work around some problems with the Mariko CC toolchain
//
#ifdef MARIKO_CC
// 32-bit signed and unsigned mod seem buggy; this solves it
unsigned long __umodsi3(unsigned long a, unsigned long b) { return a - (a / b) * b; }
signed long __modsi3(signed long a, signed long b) { return a - (a / b) * b; }
// Some kind of soft float linkage issue?
void __cmpdf2(void) {}
#endif
////////////////////////////////////////////////////////////////////////////////
#endif
cmdpack-1.03-src/src/ecm.c 0000644 0001750 0001750 00000074765 11731303760 015261 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "ecm - Encoder/decoder for Error Code Modeler format"
#define COPYR "Copyright (C) 2002-2011 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
//
// Sector types
//
// Mode 1
// -----------------------------------------------------
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
// 0000h 00 FF FF FF FF FF FF FF FF FF FF 00 [-ADDR-] 01
// 0010h [---DATA...
// ...
// 0800h ...DATA---]
// 0810h [---EDC---] 00 00 00 00 00 00 00 00 [---ECC...
// ...
// 0920h ...ECC---]
// -----------------------------------------------------
//
// Mode 2 (XA), form 1
// -----------------------------------------------------
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
// 0000h 00 FF FF FF FF FF FF FF FF FF FF 00 [-ADDR-] 02
// 0010h [--FLAGS--] [--FLAGS--] [---DATA...
// ...
// 0810h ...DATA---] [---EDC---] [---ECC...
// ...
// 0920h ...ECC---]
// -----------------------------------------------------
//
// Mode 2 (XA), form 2
// -----------------------------------------------------
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
// 0000h 00 FF FF FF FF FF FF FF FF FF FF 00 [-ADDR-] 02
// 0010h [--FLAGS--] [--FLAGS--] [---DATA...
// ...
// 0920h ...DATA---] [---EDC---]
// -----------------------------------------------------
//
// ADDR: Sector address, encoded as minutes:seconds:frames in BCD
// FLAGS: Used in Mode 2 (XA) sectors describing the type of sector; repeated
// twice for redundancy
// DATA: Area of the sector which contains the actual data itself
// EDC: Error Detection Code
// ECC: Error Correction Code
//
////////////////////////////////////////////////////////////////////////////////
static uint32_t get32lsb(const uint8_t* src) {
return
(((uint32_t)(src[0])) << 0) |
(((uint32_t)(src[1])) << 8) |
(((uint32_t)(src[2])) << 16) |
(((uint32_t)(src[3])) << 24);
}
static void put32lsb(uint8_t* dest, uint32_t value) {
dest[0] = (uint8_t)(value );
dest[1] = (uint8_t)(value >> 8);
dest[2] = (uint8_t)(value >> 16);
dest[3] = (uint8_t)(value >> 24);
}
////////////////////////////////////////////////////////////////////////////////
//
// LUTs used for computing ECC/EDC
//
static uint8_t ecc_f_lut[256];
static uint8_t ecc_b_lut[256];
static uint32_t edc_lut [256];
static void eccedc_init(void) {
size_t i;
for(i = 0; i < 256; i++) {
uint32_t edc = i;
size_t j = (i << 1) ^ (i & 0x80 ? 0x11D : 0);
ecc_f_lut[i] = j;
ecc_b_lut[i ^ j] = i;
for(j = 0; j < 8; j++) {
edc = (edc >> 1) ^ (edc & 1 ? 0xD8018001 : 0);
}
edc_lut[i] = edc;
}
}
////////////////////////////////////////////////////////////////////////////////
//
// Compute EDC for a block
//
static uint32_t edc_compute(
uint32_t edc,
const uint8_t* src,
size_t size
) {
for(; size; size--) {
edc = (edc >> 8) ^ edc_lut[(edc ^ (*src++)) & 0xFF];
}
return edc;
}
////////////////////////////////////////////////////////////////////////////////
//
// Check ECC block (either P or Q)
// Returns true if the ECC data is an exact match
//
static int8_t ecc_checkpq(
const uint8_t* address,
const uint8_t* data,
size_t major_count,
size_t minor_count,
size_t major_mult,
size_t minor_inc,
const uint8_t* ecc
) {
size_t size = major_count * minor_count;
size_t major;
for(major = 0; major < major_count; major++) {
size_t index = (major >> 1) * major_mult + (major & 1);
uint8_t ecc_a = 0;
uint8_t ecc_b = 0;
size_t minor;
for(minor = 0; minor < minor_count; minor++) {
uint8_t temp;
if(index < 4) {
temp = address[index];
} else {
temp = data[index - 4];
}
index += minor_inc;
if(index >= size) { index -= size; }
ecc_a ^= temp;
ecc_b ^= temp;
ecc_a = ecc_f_lut[ecc_a];
}
ecc_a = ecc_b_lut[ecc_f_lut[ecc_a] ^ ecc_b];
if(
ecc[major ] != (ecc_a ) ||
ecc[major + major_count] != (ecc_a ^ ecc_b)
) {
return 0;
}
}
return 1;
}
//
// Write ECC block (either P or Q)
//
static void ecc_writepq(
const uint8_t* address,
const uint8_t* data,
size_t major_count,
size_t minor_count,
size_t major_mult,
size_t minor_inc,
uint8_t* ecc
) {
size_t size = major_count * minor_count;
size_t major;
for(major = 0; major < major_count; major++) {
size_t index = (major >> 1) * major_mult + (major & 1);
uint8_t ecc_a = 0;
uint8_t ecc_b = 0;
size_t minor;
for(minor = 0; minor < minor_count; minor++) {
uint8_t temp;
if(index < 4) {
temp = address[index];
} else {
temp = data[index - 4];
}
index += minor_inc;
if(index >= size) { index -= size; }
ecc_a ^= temp;
ecc_b ^= temp;
ecc_a = ecc_f_lut[ecc_a];
}
ecc_a = ecc_b_lut[ecc_f_lut[ecc_a] ^ ecc_b];
ecc[major ] = (ecc_a );
ecc[major + major_count] = (ecc_a ^ ecc_b);
}
}
//
// Check ECC P and Q codes for a sector
// Returns true if the ECC data is an exact match
//
static int8_t ecc_checksector(
const uint8_t *address,
const uint8_t *data,
const uint8_t *ecc
) {
return
ecc_checkpq(address, data, 86, 24, 2, 86, ecc) && // P
ecc_checkpq(address, data, 52, 43, 86, 88, ecc + 0xAC); // Q
}
//
// Write ECC P and Q codes for a sector
//
static void ecc_writesector(
const uint8_t *address,
const uint8_t *data,
uint8_t *ecc
) {
ecc_writepq(address, data, 86, 24, 2, 86, ecc); // P
ecc_writepq(address, data, 52, 43, 86, 88, ecc + 0xAC); // Q
}
////////////////////////////////////////////////////////////////////////////////
static const uint8_t zeroaddress[4] = {0, 0, 0, 0};
////////////////////////////////////////////////////////////////////////////////
//
// Check if this is a sector we can compress
//
// Sector types:
// 0: Literal bytes (not a sector)
// 1: 2352 mode 1 predict sync, mode, reserved, edc, ecc
// 2: 2336 mode 2 form 1 predict redundant flags, edc, ecc
// 3: 2336 mode 2 form 2 predict redundant flags, edc
//
static int8_t detect_sector(const uint8_t* sector, size_t size_available) {
if(
size_available >= 2352 &&
sector[0x000] == 0x00 && // sync (12 bytes)
sector[0x001] == 0xFF &&
sector[0x002] == 0xFF &&
sector[0x003] == 0xFF &&
sector[0x004] == 0xFF &&
sector[0x005] == 0xFF &&
sector[0x006] == 0xFF &&
sector[0x007] == 0xFF &&
sector[0x008] == 0xFF &&
sector[0x009] == 0xFF &&
sector[0x00A] == 0xFF &&
sector[0x00B] == 0x00 &&
sector[0x00F] == 0x01 && // mode (1 byte)
sector[0x814] == 0x00 && // reserved (8 bytes)
sector[0x815] == 0x00 &&
sector[0x816] == 0x00 &&
sector[0x817] == 0x00 &&
sector[0x818] == 0x00 &&
sector[0x819] == 0x00 &&
sector[0x81A] == 0x00 &&
sector[0x81B] == 0x00
) {
//
// Might be Mode 1
//
if(
ecc_checksector(
sector + 0xC,
sector + 0x10,
sector + 0x81C
) &&
edc_compute(0, sector, 0x810) == get32lsb(sector + 0x810)
) {
return 1; // Mode 1
}
} else if(
size_available >= 2336 &&
sector[0] == sector[4] && // flags (4 bytes)
sector[1] == sector[5] && // versus redundant copy
sector[2] == sector[6] &&
sector[3] == sector[7]
) {
//
// Might be Mode 2, Form 1 or 2
//
if(
ecc_checksector(
zeroaddress,
sector,
sector + 0x80C
) &&
edc_compute(0, sector, 0x808) == get32lsb(sector + 0x808)
) {
return 2; // Mode 2, Form 1
}
//
// Might be Mode 2, Form 2
//
if(
edc_compute(0, sector, 0x91C) == get32lsb(sector + 0x91C)
) {
return 3; // Mode 2, Form 2
}
}
//
// Nothing
//
return 0;
}
////////////////////////////////////////////////////////////////////////////////
//
// Reconstruct a sector based on type
//
static void reconstruct_sector(
uint8_t* sector, // must point to a full 2352-byte sector
int8_t type
) {
//
// Sync
//
sector[0x000] = 0x00;
sector[0x001] = 0xFF;
sector[0x002] = 0xFF;
sector[0x003] = 0xFF;
sector[0x004] = 0xFF;
sector[0x005] = 0xFF;
sector[0x006] = 0xFF;
sector[0x007] = 0xFF;
sector[0x008] = 0xFF;
sector[0x009] = 0xFF;
sector[0x00A] = 0xFF;
sector[0x00B] = 0x00;
switch(type) {
case 1:
//
// Mode
//
sector[0x00F] = 0x01;
//
// Reserved
//
sector[0x814] = 0x00;
sector[0x815] = 0x00;
sector[0x816] = 0x00;
sector[0x817] = 0x00;
sector[0x818] = 0x00;
sector[0x819] = 0x00;
sector[0x81A] = 0x00;
sector[0x81B] = 0x00;
break;
case 2:
case 3:
//
// Mode
//
sector[0x00F] = 0x02;
//
// Flags
//
sector[0x010] = sector[0x014];
sector[0x011] = sector[0x015];
sector[0x012] = sector[0x016];
sector[0x013] = sector[0x017];
break;
}
//
// Compute EDC
//
switch(type) {
case 1: put32lsb(sector+0x810, edc_compute(0, sector , 0x810)); break;
case 2: put32lsb(sector+0x818, edc_compute(0, sector+0x10, 0x808)); break;
case 3: put32lsb(sector+0x92C, edc_compute(0, sector+0x10, 0x91C)); break;
}
//
// Compute ECC
//
switch(type) {
case 1: ecc_writesector(sector+0xC , sector+0x10, sector+0x81C); break;
case 2: ecc_writesector(zeroaddress, sector+0x10, sector+0x81C); break;
}
//
// Done
//
}
////////////////////////////////////////////////////////////////////////////////
//
// Encode a type/count combo
//
// Returns nonzero on error
//
static int8_t write_type_count(
const char* outfilename,
FILE *out,
int8_t type,
uint32_t count
) {
int8_t returncode = 0;
count--;
if(fputc(((count >= 32) << 7) | ((count & 31) << 2) | type, out) == EOF) {
goto error_out;
}
count >>= 5;
while(count) {
if(fputc(((count >= 128) << 7) | (count & 127), out) == EOF) {
goto error_out;
}
count >>= 7;
}
//
// Success
//
returncode = 0;
goto done;
error_out:
printfileerror(out, outfilename);
goto error;
error:
returncode = 1;
goto done;
done:
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
static uint8_t sector_buffer[2352];
////////////////////////////////////////////////////////////////////////////////
static off_t mycounter_analyze = (off_t)-1;
static off_t mycounter_encode = (off_t)-1;
static off_t mycounter_decode = (off_t)-1;
static off_t mycounter_total = 0;
static void resetcounter(off_t total) {
mycounter_analyze = (off_t)-1;
mycounter_encode = (off_t)-1;
mycounter_decode = (off_t)-1;
mycounter_total = total;
}
static void encode_progress(void) {
off_t a = (mycounter_analyze + 64) / 128;
off_t e = (mycounter_encode + 64) / 128;
off_t t = (mycounter_total + 64) / 128;
if(!t) { t = 1; }
fprintf(stderr,
"Analyze(%02u%%) Encode(%02u%%)\r",
(unsigned)((((off_t)100) * a) / t),
(unsigned)((((off_t)100) * e) / t)
);
}
static void decode_progress(void) {
off_t d = (mycounter_decode + 64) / 128;
off_t t = (mycounter_total + 64) / 128;
if(!t) { t = 1; }
fprintf(stderr,
"Decode(%02u%%)\r",
(unsigned)((((off_t)100) * d) / t)
);
}
static void setcounter_analyze(off_t n) {
int8_t p = ((n >> 20) != (mycounter_analyze >> 20));
mycounter_analyze = n;
if(p) { encode_progress(); }
}
static void setcounter_encode(off_t n) {
int8_t p = ((n >> 20) != (mycounter_encode >> 20));
mycounter_encode = n;
if(p) { encode_progress(); }
}
static void setcounter_decode(off_t n) {
int8_t p = ((n >> 20) != (mycounter_decode >> 20));
mycounter_decode = n;
if(p) { decode_progress(); }
}
////////////////////////////////////////////////////////////////////////////////
//
// Encode a run of sectors/literals of the same type
//
// Returns nonzero on error
//
static int8_t write_sectors(
int8_t type,
uint32_t count,
const char* infilename,
const char* outfilename,
FILE* in,
FILE* out
) {
int8_t returncode = 0;
if(write_type_count(outfilename, out, type, count)) { goto error; }
if(type == 0) {
while(count) {
uint32_t b = count;
if(b > sizeof(sector_buffer)) { b = sizeof(sector_buffer); }
if(fread(sector_buffer, 1, b, in) != b) { goto error_in; }
if(fwrite(sector_buffer, 1, b, out) != b) { goto error_out; }
count -= b;
setcounter_encode(ftello(in));
}
return 0;
}
for(; count; count--) {
switch(type) {
case 1:
if(fread(sector_buffer, 1, 2352, in) != 2352) { goto error_in; }
if(fwrite(sector_buffer + 0x00C, 1, 0x003, out) != 0x003) { goto error_out; }
if(fwrite(sector_buffer + 0x010, 1, 0x800, out) != 0x800) { goto error_out; }
break;
case 2:
if(fread(sector_buffer, 1, 2336, in) != 2336) { goto error_in; }
if(fwrite(sector_buffer + 0x004, 1, 0x804, out) != 0x804) { goto error_out; }
break;
case 3:
if(fread(sector_buffer, 1, 2336, in) != 2336) { goto error_in; }
if(fwrite(sector_buffer + 0x004, 1, 0x918, out) != 0x918) { goto error_out; }
break;
}
setcounter_encode(ftello(in));
}
//
// Success
//
returncode = 0;
goto done;
error_in:
printfileerror(in, infilename);
goto error;
error_out:
printfileerror(out, outfilename);
goto error;
error:
returncode = 1;
goto done;
done:
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
//
// Returns nonzero on error
//
static int8_t ecmify(
const char* infilename,
const char* outfilename
) {
int8_t returncode = 0;
FILE* in = NULL;
FILE* out = NULL;
uint8_t* queue = NULL;
size_t queue_start_ofs = 0;
size_t queue_bytes_available = 0;
uint32_t input_edc = 0;
//
// Current sector type (run)
//
int8_t curtype = -1; // not a valid type
uint32_t curtype_count = 0;
off_t curtype_in_start = 0;
uint32_t literal_skip = 0;
off_t input_file_length;
off_t input_bytes_checked = 0;
off_t input_bytes_queued = 0;
off_t typetally[4] = {0,0,0,0};
static const size_t sectorsize[4] = {
1,
2352,
2336,
2336
};
size_t queue_size = ((size_t)(-1)) - 4095;
if((unsigned long)queue_size > 0x40000lu) {
queue_size = (size_t)0x40000lu;
}
//
// Allocate space for queue
//
queue = malloc(queue_size);
if(!queue) {
printf("Out of memory\n");
goto error;
}
//
// Ensure the output file doesn't already exist
//
out = fopen(outfilename, "rb");
if(out) {
printf("Error: %s exists; refusing to overwrite\n", outfilename);
goto error;
}
//
// Open both files
//
in = fopen(infilename, "rb");
if(!in) { goto error_in; }
out = fopen(outfilename, "wb");
if(!out) { goto error_out; }
printf("Encoding %s to %s...\n", infilename, outfilename);
//
// Get the length of the input file
//
if(fseeko(in, 0, SEEK_END) != 0) { goto error_in; }
input_file_length = ftello(in);
if(input_file_length < 0) { goto error_in; }
resetcounter(input_file_length);
//
// Magic identifier
//
if(fputc('E' , out) == EOF) { goto error_out; }
if(fputc('C' , out) == EOF) { goto error_out; }
if(fputc('M' , out) == EOF) { goto error_out; }
if(fputc(0x00, out) == EOF) { goto error_out; }
for(;;) {
int8_t detecttype;
//
// Refill queue if necessary
//
if(
(queue_bytes_available < 2352) &&
(((off_t)queue_bytes_available) < (input_file_length - input_bytes_queued))
) {
//
// We need to read more data
//
off_t willread = input_file_length - input_bytes_queued;
off_t maxread = queue_size - queue_bytes_available;
if(willread > maxread) {
willread = maxread;
}
if(queue_start_ofs > 0) {
memmove(queue, queue + queue_start_ofs, queue_bytes_available);
queue_start_ofs = 0;
}
if(willread) {
setcounter_analyze(input_bytes_queued);
if(fseeko(in, input_bytes_queued, SEEK_SET) != 0) {
goto error_in;
}
if(fread(queue + queue_bytes_available, 1, willread, in) != (size_t)willread) {
goto error_in;
}
input_edc = edc_compute(
input_edc,
queue + queue_bytes_available,
willread
);
input_bytes_queued += willread;
queue_bytes_available += willread;
}
}
if(queue_bytes_available == 0) {
//
// No data left to read -> quit
//
detecttype = -1;
} else if(literal_skip > 0) {
//
// Skipping through literal bytes
//
literal_skip--;
detecttype = 0;
} else {
//
// Heuristic to skip past CD sync after a mode 2 sector
//
if(
curtype >= 2 &&
queue_bytes_available >= 0x10 &&
queue[queue_start_ofs + 0x0] == 0x00 &&
queue[queue_start_ofs + 0x1] == 0xFF &&
queue[queue_start_ofs + 0x2] == 0xFF &&
queue[queue_start_ofs + 0x3] == 0xFF &&
queue[queue_start_ofs + 0x4] == 0xFF &&
queue[queue_start_ofs + 0x5] == 0xFF &&
queue[queue_start_ofs + 0x6] == 0xFF &&
queue[queue_start_ofs + 0x7] == 0xFF &&
queue[queue_start_ofs + 0x8] == 0xFF &&
queue[queue_start_ofs + 0x9] == 0xFF &&
queue[queue_start_ofs + 0xA] == 0xFF &&
queue[queue_start_ofs + 0xB] == 0x00 &&
queue[queue_start_ofs + 0xF] == 0x02
) {
// Treat this byte as a literal...
detecttype = 0;
// ...and skip the next 15
literal_skip = 15;
} else {
//
// Detect the sector type at the current offset
//
detecttype = detect_sector(queue + queue_start_ofs, queue_bytes_available);
}
}
if(
(detecttype == curtype) &&
(curtype_count <= 0x7FFFFFFF) // avoid overflow
) {
//
// Same type as last sector
//
curtype_count++;
} else {
//
// Changing types: Flush the input
//
if(curtype_count > 0) {
if(fseeko(in, curtype_in_start, SEEK_SET) != 0) { goto error_in; }
typetally[curtype] += curtype_count;
if(write_sectors(
curtype,
curtype_count,
infilename,
outfilename,
in,
out
)) { goto error; }
}
curtype = detecttype;
curtype_in_start = input_bytes_checked;
curtype_count = 1;
}
//
// Current type is negative ==> quit
//
if(curtype < 0) { break; }
//
// Advance to the next sector
//
input_bytes_checked += sectorsize[curtype];
queue_start_ofs += sectorsize[curtype];
queue_bytes_available -= sectorsize[curtype];
}
//
// Store the end-of-records indicator
//
if(write_type_count(outfilename, out, 0, 0)) { goto error; }
//
// Store the EDC of the input file
//
put32lsb(sector_buffer, input_edc);
if(fwrite(sector_buffer, 1, 4, out) != 4) { goto error_out; }
//
// Show report
//
printf("Literal bytes........... "); fprintdec(stdout, typetally[0]); printf("\n");
printf("Mode 1 sectors.......... "); fprintdec(stdout, typetally[1]); printf("\n");
printf("Mode 2 form 1 sectors... "); fprintdec(stdout, typetally[2]); printf("\n");
printf("Mode 2 form 2 sectors... "); fprintdec(stdout, typetally[3]); printf("\n");
printf("Encoded ");
fprintdec(stdout, input_file_length);
printf(" bytes -> ");
fprintdec(stdout, ftello(out));
printf(" bytes\n");
//
// Success
//
printf("Done\n");
returncode = 0;
goto done;
error_in:
printfileerror(in, infilename);
goto error;
error_out:
printfileerror(out, outfilename);
goto error;
error:
returncode = 1;
goto done;
done:
if(queue != NULL) { free(queue); }
if(in != NULL) { fclose(in ); }
if(out != NULL) { fclose(out); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
//
// Returns nonzero on error
//
static int8_t unecmify(
const char* infilename,
const char* outfilename
) {
int8_t returncode = 0;
FILE* in = NULL;
FILE* out = NULL;
off_t input_file_length;
uint32_t output_edc = 0;
int8_t type;
uint32_t num;
//
// Ensure the output file doesn't already exist
//
out = fopen(outfilename, "rb");
if(out) {
printf("Error: %s exists; refusing to overwrite\n", outfilename);
goto error;
}
//
// Open both files
//
in = fopen(infilename, "rb");
if(!in) { goto error_in; }
//
// Get the length of the input file
//
if(fseeko(in, 0, SEEK_END) != 0) { goto error_in; }
input_file_length = ftello(in);
if(input_file_length < 0) { goto error_in; }
resetcounter(input_file_length);
if(fseeko(in, 0, SEEK_SET) != 0) { goto error_in; }
//
// Magic header
//
if(
(fgetc(in) != 'E') ||
(fgetc(in) != 'C') ||
(fgetc(in) != 'M') ||
(fgetc(in) != 0x00)
) {
printf("Header missing; does not appear to be an ECM file\n");
goto error;
}
//
// Open output file
//
out = fopen(outfilename, "wb");
if(!out) { goto error_out; }
printf("Decoding %s to %s...\n", infilename, outfilename);
for(;;) {
int c = fgetc(in);
int bits = 5;
if(c == EOF) { goto error_in; }
type = c & 3;
num = (c >> 2) & 0x1F;
while(c & 0x80) {
c = fgetc(in);
if(c == EOF) { goto error_in; }
if(
(bits > 31) ||
((uint32_t)(c & 0x7F)) >= (((uint32_t)0x80000000LU) >> (bits-1))
) {
printf("Corrupt ECM file; invalid sector count\n");
goto error;
}
num |= ((uint32_t)(c & 0x7F)) << bits;
bits += 7;
}
if(num == 0xFFFFFFFF) {
// End indicator
break;
}
num++;
if(type == 0) {
while(num) {
uint32_t b = num;
if(b > sizeof(sector_buffer)) { b = sizeof(sector_buffer); }
if(fread(sector_buffer, 1, b, in) != b) {
goto error_in;
}
output_edc = edc_compute(output_edc, sector_buffer, b);
if(fwrite(sector_buffer, 1, b, out) != b) {
goto error_out;
}
num -= b;
setcounter_decode(ftello(in));
}
} else {
for(; num; num--) {
switch(type) {
case 1:
if(fread(sector_buffer + 0x00C, 1, 0x003, in) != 0x003) { goto error_in; }
if(fread(sector_buffer + 0x010, 1, 0x800, in) != 0x800) { goto error_in; }
reconstruct_sector(sector_buffer, 1);
output_edc = edc_compute(output_edc, sector_buffer, 2352);
if(fwrite(sector_buffer, 1, 2352, out) != 2352) { goto error_out; }
break;
case 2:
if(fread(sector_buffer + 0x014, 1, 0x804, in) != 0x804) { goto error_in; }
reconstruct_sector(sector_buffer, 2);
output_edc = edc_compute(output_edc, sector_buffer + 0x10, 2336);
if(fwrite(sector_buffer + 0x10, 1, 2336, out) != 2336) { goto error_out; }
break;
case 3:
if(fread(sector_buffer + 0x014, 1, 0x918, in) != 0x918) { goto error_in; }
reconstruct_sector(sector_buffer, 3);
output_edc = edc_compute(output_edc, sector_buffer + 0x10, 2336);
if(fwrite(sector_buffer + 0x10, 1, 2336, out) != 2336) { goto error_out; }
break;
}
setcounter_decode(ftello(in));
}
}
}
//
// Verify the EDC of the entire output file
//
if(fread(sector_buffer, 1, 4, in) != 4) { goto error_in; }
printf("Decoded ");
fprintdec(stdout, ftello(in));
printf(" bytes -> ");
fprintdec(stdout, ftello(out));
printf(" bytes\n");
if(get32lsb(sector_buffer) != output_edc) {
printf("Checksum error (0x%08lX, should be 0x%08lX)\n",
(unsigned long)output_edc,
(unsigned long)get32lsb(sector_buffer)
);
goto error;
}
//
// Success
//
printf("Done\n");
returncode = 0;
goto done;
error_in:
printfileerror(in, infilename);
goto error;
error_out:
printfileerror(out, outfilename);
goto error;
error:
returncode = 1;
goto done;
done:
if(in != NULL) { fclose(in ); }
if(out != NULL) { fclose(out); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
int main(int argc, char** argv) {
int returncode = 0;
int8_t encode = 0;
char* infilename = NULL;
char* outfilename = NULL;
char* tempfilename = NULL;
normalize_argv0(argv[0]);
//
// Check command line
//
switch(argc) {
case 2:
//
// ecm source
// unecm source
//
encode = (strcmp(argv[0], "unecm") != 0);
infilename = argv[1];
tempfilename = malloc(strlen(infilename) + 7);
if(!tempfilename) {
printf("Out of memory\n");
goto error;
}
strcpy(tempfilename, infilename);
if(encode) {
//
// Append ".ecm" to the input filename
//
strcat(tempfilename, ".ecm");
} else {
//
// Remove ".ecm" from the input filename
//
size_t l = strlen(tempfilename);
if(
(l > 4) &&
tempfilename[l - 4] == '.' &&
tolower(tempfilename[l - 3]) == 'e' &&
tolower(tempfilename[l - 2]) == 'c' &&
tolower(tempfilename[l - 1]) == 'm'
) {
tempfilename[l - 4] = 0;
} else {
//
// If that fails, append ".unecm" to the input filename
//
strcat(tempfilename, ".unecm");
}
}
outfilename = tempfilename;
break;
case 3:
//
// ecm source dest
// unecm source dest
//
encode = (strcmp(argv[0], "unecm") != 0);
infilename = argv[1];
outfilename = argv[2];
break;
case 4:
//
// ecm e source dest
// ecm d source dest
//
if(!strcmp(argv[1], "e")) {
encode = 1;
} else if(!strcmp(argv[1], "d")) {
encode = 0;
} else {
goto usage;
}
infilename = argv[2];
outfilename = argv[3];
break;
default:
goto usage;
}
//
// Initialize the ECC/EDC tables
//
eccedc_init();
//
// Go!
//
if(encode) {
if(ecmify(infilename, outfilename)) { goto error; }
} else {
if(unecmify(infilename, outfilename)) { goto error; }
}
//
// Success
//
returncode = 0;
goto done;
usage:
banner();
printf(
"Usage:\n"
"\n"
"To encode:\n"
" ecm cdimagefile\n"
" ecm cdimagefile ecmfile\n"
" ecm e cdimagefile ecmfile\n"
"\n"
"To decode:\n"
" unecm ecmfile\n"
" unecm ecmfile cdimagefile\n"
" ecm d ecmfile cdimagefile\n"
);
error:
returncode = 1;
goto done;
done:
if(tempfilename) { free(tempfilename); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/fakecrc.c 0000644 0001750 0001750 00000021416 11731303760 016074 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "fakecrc - Fake the CRC32 of a file"
#define COPYR "Copyright (C) 2010 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
static uint32_t crctable_f[256];
static uint32_t crctable_r[256];
static void crc_init(void) {
uint32_t i, j, k;
for(i = 0; i < 256; i++) {
j = i;
for(k = 0; k < 8; k++) {
j = (j >> 1) ^ ((j & 1) ? 0x80000000 : 0x6DB88320);
}
crctable_f[i] = j;
j = i << 24;
for(k = 0; k < 8; k++) {
j = (j << 1) ^ ((((int32_t)j) < 0) ? 0x00000001 : 0xDB710640);
}
crctable_r[i] = j;
}
}
static uint32_t crc_nextbyte(uint32_t crc, uint8_t byte) {
return (crc >> 8) ^ crctable_f[(crc ^ byte) & 0xFF];
}
static uint32_t crc_prevbyte(uint32_t crc, uint8_t byte) {
return (crc << 8) ^ byte ^ crctable_r[crc >> 24];
}
////////////////////////////////////////////////////////////////////////////////
//
// Compute CRC forward for a section of a file
//
static uint8_t crc_buffer[4096];
// Returns nonzero on error
static int crc_f(uint32_t crc, FILE* f, off_t start, off_t end, uint32_t* result) {
if(start < 0) { printf("error - start is negative\n"); return 1; }
if(end < 0) { printf("error - end is negative\n"); return 1; }
if(start > end) { printf("error - start > end\n"); return 1; }
if(fseeko(f, start, SEEK_SET) != 0) {
printf("seek error\n");
return 1;
}
while(start < end) {
off_t i;
off_t diff = end - start;
if(diff > ((off_t)sizeof(crc_buffer))) { diff = sizeof(crc_buffer); }
if(fread(crc_buffer, 1, (size_t)diff, f) != (size_t)diff) {
printf("read error\n");
return 1;
}
for(i = 0; i < diff; i++) {
crc = crc_nextbyte(crc, crc_buffer[i]);
}
start += diff;
}
if(result) { *result = crc; }
return 0;
}
//
// Compute CRC reverse for a section of a file
//
// Returns nonzero on error
static int crc_r(uint32_t crc, FILE* f, off_t start, off_t end, uint32_t* result) {
if(start < 0) { printf("error - start is negative\n"); return 1; }
if(end < 0) { printf("error - end is negative\n"); return 1; }
if(start > end) { printf("error - start > end\n"); return 1; }
while(start < end) {
off_t i;
off_t diff = end - start;
if(diff > ((off_t)sizeof(crc_buffer))) { diff = sizeof(crc_buffer); }
end -= diff;
if(fseeko(f, end, SEEK_SET) != 0) {
printf("seek error\n");
return 1;
}
if(fread(crc_buffer, 1, (size_t)diff, f) != (size_t)diff) {
printf("read error\n");
return 1;
}
for(i = diff; i > 0; i--) {
crc = crc_prevbyte(crc, crc_buffer[i - 1]);
}
}
if(result) { *result = crc; }
return 0;
}
////////////////////////////////////////////////////////////////////////////////
//
// Returns the 4 data bytes necessary to go from current->desired
//
static uint32_t crc32_preimage(uint32_t current_crc, uint32_t desired_crc) {
uint32_t x = desired_crc ^ 0x2144DF1Clu;
return current_crc ^
( x & 0x47FF01FFlu) ^ (((x<< 1)|(x>>31)) & 0x8F0003C1lu) ^
(((x<< 2)|(x>>30)) & 0xFE0FFE03lu) ^ (((x<< 3)|(x>>29)) & 0x3FE003C0lu) ^
(((x<< 4)|(x>>28)) & 0x7830FE00lu) ^ (((x<< 5)|(x>>27)) & 0xF01F03DFlu) ^
(((x<< 6)|(x>>26)) & 0x00C001C0lu) ^ (((x<< 7)|(x>>25)) & 0x3E00FC40lu) ^
(((x<< 8)|(x>>24)) & 0x7F0FFEC0lu) ^ (((x<< 9)|(x>>23)) & 0xF9EF03FFlu) ^
(((x<<10)|(x>>22)) & 0x0FDFFE00lu) ^ (((x<<11)|(x>>21)) & 0x07CF05C0lu) ^
(((x<<12)|(x>>20)) & 0x30E00C00lu) ^ (((x<<13)|(x>>19)) & 0x7ECF0000lu) ^
(((x<<14)|(x>>18)) & 0xC1E001FFlu) ^ (((x<<15)|(x>>17)) & 0x78CF03C0lu) ^
(((x<<16)|(x>>16)) & 0xF61FFFFFlu) ^ (((x<<17)|(x>>15)) & 0x0F310000lu) ^
(((x<<18)|(x>>14)) & 0x39E0FE00lu) ^ (((x<<19)|(x>>13)) & 0x4F37FC00lu) ^
(((x<<20)|(x>>12)) & 0x8610003Flu) ^ (((x<<21)|(x>>11)) & 0xCF30FFFFlu) ^
(((x<<22)|(x>>10)) & 0x79EFFFC0lu) ^ (((x<<23)|(x>> 9)) & 0xCF2001FFlu) ^
(((x<<24)|(x>> 8)) & 0x793FFC00lu) ^ (((x<<25)|(x>> 7)) & 0xCF0F01FFlu) ^
(((x<<26)|(x>> 6)) & 0x7AE003C0lu) ^ (((x<<27)|(x>> 5)) & 0xC9C0003Flu) ^
(((x<<28)|(x>> 4)) & 0x78000000lu) ^ (((x<<29)|(x>> 3)) & 0xD70FFE3Flu) ^
(((x<<30)|(x>> 2)) & 0x4E1F0200lu) ^ (((x<<31)|(x>> 1)) & 0xC03FFC3Flu);
}
////////////////////////////////////////////////////////////////////////////////
int main(
int argc,
char **argv
) {
int returncode = 0;
FILE *f = NULL;
uint32_t i;
uint32_t desired_crc = 0;
off_t file_size;
off_t patch_offset;
uint32_t pre_crc = 0;
uint32_t post_crc = 0;
uint32_t preimage = 0;
uint8_t initial_bytes[4];
uint8_t patched_bytes[4];
normalize_argv0(argv[0]);
crc_init();
if(argc != 2 && argc != 3 && argc != 4) {
banner();
printf(
"Usage:\n"
"To obtain the CRC32 of a file:\n"
" %s file\n"
"To modify the CRC32 of a file:\n"
" %s file desired_crc [offset]\n"
"Patches 4 consecutive bytes at the given offset to force the file's CRC32.\n"
"If no offset is given, the last 4 bytes of the file are used.\n",
argv[0],
argv[0]
);
goto error;
}
if(argc == 2) {
//
// Just get the file's CRC
//
f = fopen(argv[1], "rb");
if(!f) { goto error_f; }
if(fseeko(f, 0, SEEK_END) != 0) { goto error_f; }
file_size = ftello(f);
if(fseeko(f, 0, SEEK_SET) != 0) { goto error_f; }
if(crc_f(0, f, 0, file_size, &pre_crc)) { goto error; }
printf("0x%08lX\n", (unsigned long)pre_crc);
goto done;
}
if(argc >= 3) {
desired_crc = strtoul(argv[2], NULL, 0);
}
f = fopen(argv[1], "r+b");
if(!f) { goto error_f; }
if(fseeko(f, 0, SEEK_END) != 0) { goto error_f; }
file_size = ftello(f);
if(fseeko(f, 0, SEEK_SET) != 0) { goto error_f; }
if(file_size < 4) {
printf("error: file must be at least 4 bytes\n");
goto error;
}
patch_offset = file_size - 4;
if(argc >= 4) {
patch_offset = strtoofft(argv[3], NULL, 0);
if(patch_offset < 0) {
printf("patch offset must not be negative\n");
goto error;
}
}
if(patch_offset > (file_size - 4)) {
printf("offset 0x");
fprinthex(stdout, patch_offset, 1);
printf(" is out of range of the file\n");
goto error;
}
//
// Compute pre- and post-crc
//
if(crc_f(0x00000000 , f, 0 , patch_offset, &pre_crc )) { goto error; }
if(crc_r(desired_crc, f, patch_offset + 4, file_size , &post_crc)) { goto error; }
//
// Compute preimage from pre to post
//
preimage = crc32_preimage(pre_crc, post_crc);
patched_bytes[0] = (uint8_t)(preimage >> 0);
patched_bytes[1] = (uint8_t)(preimage >> 8);
patched_bytes[2] = (uint8_t)(preimage >> 16);
patched_bytes[3] = (uint8_t)(preimage >> 24);
//
// Write preimage at the patch offset
//
if(fseeko(f, patch_offset, SEEK_SET) != 0) { goto error_f; }
if(fread (initial_bytes, 1, 4, f) != 4) { goto error_f; }
if(fseeko(f, patch_offset, SEEK_SET) != 0) { goto error_f; }
if(fwrite(patched_bytes, 1, 4, f) != 4) { goto error_f; }
fflush(f);
//
// Done
//
for(i = 0; i < 4; i++) {
printf("0x");
fprinthex(stdout, patch_offset + i, 1);
printf(": 0x%02X -> 0x%02X\n", initial_bytes[i], patched_bytes[i]);
}
printf("Done! CRC32 is now 0x%08lX\n", (unsigned long)desired_crc);
goto done;
error_f:
printfileerror(f, argv[1]);
error:
returncode = 1;
done:
if(f != NULL) { fclose(f); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/hax65816.c 0000644 0001750 0001750 00000047743 11731303760 015703 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "hax65816 - Simple 65816 disassembler"
#define COPYR "Copyright (C) 1998,2010 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
static char aluop[8][4] =
{"ora", "and", "eor", "adc", "sta", "lda", "cmp", "sbc" };
static char rmwop[8][4] =
{"asl", "rol", "lsr", "ror", "???", "???", "dec", "inc" };
static int8_t mflag_default = 1;
static int8_t xflag_default = 0;
static int8_t flag_return = 1;
static int8_t flag_guess = 1;
static int8_t flag_follow = 1;
static uint32_t dasm_address, ins_address;
static int8_t mflag, xflag;
static int getbyte(void);
////////////////////////////////////////////////////////////////////////////////
static int fetchlist[10];
static int unfetchstack[10];
static int fetchn, unfetchn;
static int fetchbyte(void) {
int b;
dasm_address++;
if(unfetchn) b = unfetchstack[--unfetchn]; else b = getbyte();
fetchlist[fetchn++] = b;
return b;
}
static void unfetchbyte(int b) {
dasm_address--;
fetchn--;
if(fetchn < 0) fetchn = 0;
unfetchstack[unfetchn++] = b;
}
enum { INS_COLUMN = 23 };
static void ins(const char* fmt, ...) {
static char outputstr[100];
int outputn = INS_COLUMN;
va_list ap;
va_start(ap, fmt);
for(;;) {
char c = *fmt++;
if(!c) break;
if(c == '%') {
c = *fmt++;
switch(c) {
case '%': {
outputstr[outputn++] = '%';
break; }
case 'A': {
int n = (va_arg(ap, int) >> 5) & 7;
outputstr[outputn++] = aluop[n][0];
outputstr[outputn++] = aluop[n][1];
outputstr[outputn++] = aluop[n][2];
break; }
case 'M': {
int n = (va_arg(ap, int) >> 5) & 7;
outputstr[outputn++] = rmwop[n][0];
outputstr[outputn++] = rmwop[n][1];
outputstr[outputn++] = rmwop[n][2];
break; }
case 'B': {
int n = fetchbyte();
outputstr[outputn++] = '$';
if(n < 0) {
outputstr[outputn++] = '-';
outputstr[outputn++] = '-';
} else {
sprintf(
outputstr + outputn,
"%02lX", (unsigned long)n
);
outputn += 2;
}
break; }
case 'R': {
int n = fetchbyte();
outputstr[outputn++] = '$';
if(n < 0) {
outputstr[outputn++] = '-';
outputstr[outputn++] = '-';
outputstr[outputn++] = '-';
outputstr[outputn++] = '-';
} else {
n = ((int8_t)(n)) +
dasm_address;
sprintf(
outputstr + outputn,
"%04lX", (unsigned long)(n & 0xFFFF)
);
outputn += 4;
}
break; }
case 'Z': {
int n1 = fetchbyte();
int n2 = fetchbyte();
outputstr[outputn++] = '$';
if((n1 < 0) || (n2 < 0)) {
for(n1 = 0; n1 < 6; n1++) {
outputstr[outputn++] = '-';
}
} else {
int n = (n2 << 8) | (n1 & 0xFF);
n = ((int16_t)(n)) +
dasm_address;
sprintf(
outputstr + outputn,
"%04lX", (unsigned long)(n & 0xFFFF)
);
outputn += 6;
}
break; }
case 'G': {
int n = va_arg(ap, int);
outputstr[outputn++] = '$';
if(n < 0) {
outputstr[outputn++] = '-';
outputstr[outputn++] = '-';
} else {
sprintf(
outputstr + outputn,
"%02lX", (unsigned long)(n)
);
outputn += 2;
}
break; }
case 'W': {
int q, n[2];
n[1] = fetchbyte();
n[0] = fetchbyte();
outputstr[outputn++] = '$';
for(q = 0; q < 2; q++) {
if(n[q] < 0) {
outputstr[outputn++] = '-';
outputstr[outputn++] = '-';
} else {
sprintf(
outputstr + outputn,
"%02lX", (unsigned long)(n[q])
);
outputn += 2;
}
}
break; }
case 'L': {
int q, n[3];
n[2] = fetchbyte();
n[1] = fetchbyte();
n[0] = fetchbyte();
outputstr[outputn++] = '$';
for(q = 0; q < 3; q++) {
if(n[q] < 0) {
outputstr[outputn++] = '-';
outputstr[outputn++] = '-';
} else {
sprintf(
outputstr + outputn,
"%02lX", (unsigned long)(n[q])
);
outputn += 2;
}
}
break; }
case 'I': case 'X': {
int q, n[3];
int8_t* sflag = (c == 'I') ? (&mflag) : (&xflag);
outputstr[outputn++] = '$';
if(*sflag) {
n[0] = fetchbyte();
n[1] = fetchbyte();
//
// BRK/COP/WDM/STP after this?
//
switch(n[1]) {
case 0x00: case 0x02:
case 0x42: case 0xDB:
if(flag_follow && flag_guess
) {
(*sflag) = 0;
q = 2;
break;
}
default:
unfetchbyte(n[1]);
q = 1;
break;
}
} else {
n[0] = fetchbyte();
n[1] = fetchbyte();
n[2] = fetchbyte();
//
// BRK/COP/WDM/STP after this?
//
switch(n[2]) {
case 0x00: case 0x02:
case 0x42: case 0xDB:
if(flag_follow && flag_guess
) {
(*sflag) = 1;
unfetchbyte(n[2]);
unfetchbyte(n[1]);
q = 1;
break;
}
default:
unfetchbyte(n[2]);
q = 2;
break;
}
}
while(q--) {
if(n[q] < 0) {
outputstr[outputn++] = '-';
outputstr[outputn++] = '-';
} else {
sprintf(
outputstr + outputn,
"%02lX", (unsigned long)(n[q])
);
outputn += 2;
}
}
break; }
}
} else {
outputstr[outputn++] = c;
}
}
outputstr[outputn] = 0;
sprintf(outputstr, "%02lX/%04lX:",
(unsigned long)(ins_address >> 16),
(unsigned long)(ins_address & 0xFFFF)
);
memset(outputstr + 8, ' ', INS_COLUMN - 8);
outputn = 9;
{ int i;
for(i = 0; i < fetchn; i++) {
int n = fetchlist[i];
if(n < 0) {
outputstr[outputn ] = '-';
outputstr[outputn+1] = '-';
} else {
sprintf(outputstr + outputn, "%02X", n);
outputstr[outputn+2] = ' ';
}
outputn += 3;
}
}
fetchn = 0;
printf("%s\n", outputstr);
va_end(ap);
}
static void disassemble_one(void) {
int opcode;
ins_address = dasm_address;
opcode = fetchbyte();
if(opcode < 0) return;
if (opcode == 0x00) { ins("brk %B");
} else if(opcode == 0x20) { ins("jsr %W");
} else if(opcode == 0x40) { ins("rti"); if(flag_return) { mflag = mflag_default; xflag = xflag_default; }
} else if(opcode == 0x60) { ins("rts"); if(flag_return) { mflag = mflag_default; xflag = xflag_default; }
} else if(opcode == 0x80) { ins("bra %R");
} else if(opcode == 0xA0) { ins("ldy #%X");
} else if(opcode == 0xC0) { ins("cpy #%X");
} else if(opcode == 0xE0) { ins("cpx #%X");
} else if(opcode == 0x10) { ins("bpl %R");
} else if(opcode == 0x30) { ins("bmi %R");
} else if(opcode == 0x50) { ins("bvc %R");
} else if(opcode == 0x70) { ins("bvs %R");
} else if(opcode == 0x90) { ins("bcc %R");
} else if(opcode == 0xB0) { ins("bcs %R");
} else if(opcode == 0xD0) { ins("bne %R");
} else if(opcode == 0xF0) { ins("beq %R");
} else if((opcode & 0x1F) == 0x01) { ins("%A (%B,x)" , opcode);
} else if((opcode & 0x1F) == 0x11) { ins("%A (%B),y" , opcode);
} else if(opcode == 0x02) { ins("cop %B");
} else if(opcode == 0x22) { ins("jsr %L");
} else if(opcode == 0x42) { ins("wdm %B");
} else if(opcode == 0x62) { ins("per %Z");
} else if(opcode == 0x82) { ins("brl %Z");
} else if(opcode == 0xA2) { ins("ldx #%X");
} else if(opcode == 0xC2) {
int n = fetchbyte();
if(flag_follow) if(n >= 0) {
if(n & 0x10) xflag = 0;
if(n & 0x20) mflag = 0;
}
ins("rep #%G", n);
} else if(opcode == 0xE2) {
int n = fetchbyte();
if(flag_follow) if(n >= 0) {
if(n & 0x10) xflag = 1;
if(n & 0x20) mflag = 1;
}
ins("sep #%G", n);
} else if((opcode & 0x1F) == 0x12) { ins("%A (%B)" , opcode);
} else if((opcode & 0x1F) == 0x03) { ins("%A %B,s" , opcode);
} else if((opcode & 0x1F) == 0x13) { ins("%A (%B,s),y", opcode);
} else if(opcode == 0x04) { ins("tsb %B");
} else if(opcode == 0x24) { ins("bit %B");
} else if(opcode == 0x44) { ins("mvp %B,%B");
} else if(opcode == 0x64) { ins("stz %B");
} else if(opcode == 0x84) { ins("sty %B");
} else if(opcode == 0xA4) { ins("ldy %B");
} else if(opcode == 0xC4) { ins("cpy %B");
} else if(opcode == 0xE4) { ins("cpx %B");
} else if(opcode == 0x14) { ins("trb %B");
} else if(opcode == 0x34) { ins("bit %B,x");
} else if(opcode == 0x54) { ins("mvn %B,%B");
} else if(opcode == 0x74) { ins("stz %B,x");
} else if(opcode == 0x94) { ins("sty %B,x");
} else if(opcode == 0xB4) { ins("ldy %B,x");
} else if(opcode == 0xD4) { ins("pei (%B)");
} else if(opcode == 0xF4) { ins("pea %W");
} else if((opcode & 0x1F) == 0x05) { ins("%A %B" , opcode);
} else if((opcode & 0x1F) == 0x15) { ins("%A %B,x" , opcode);
} else if(((opcode & 0x1F) == 0x06) && ((opcode & 0xC0) != 0x80)) {
ins("%M %B", opcode);
} else if(opcode == 0x86) { ins("stx %B");
} else if(opcode == 0xA6) { ins("ldx %B");
} else if(((opcode & 0x1F) == 0x16) && ((opcode & 0xC0) != 0x80)) {
ins("%M %B,x", opcode);
} else if(opcode == 0x96) { ins("stx %B,y");
} else if(opcode == 0xB6) { ins("ldx %B,y");
} else if((opcode & 0x1F) == 0x07) { ins("%A [%B]" , opcode);
} else if((opcode & 0x1F) == 0x17) { ins("%A [%B],y" , opcode);
} else if(opcode == 0x08) { ins("php");
} else if(opcode == 0x28) { ins("plp");
} else if(opcode == 0x48) { ins("pha");
} else if(opcode == 0x68) { ins("pla");
} else if(opcode == 0x88) { ins("dey");
} else if(opcode == 0xA8) { ins("tay");
} else if(opcode == 0xC8) { ins("iny");
} else if(opcode == 0xE8) { ins("inx");
} else if(opcode == 0x18) { ins("clc");
} else if(opcode == 0x38) { ins("sec");
} else if(opcode == 0x58) { ins("cli");
} else if(opcode == 0x78) { ins("sei");
} else if(opcode == 0x98) { ins("tya");
} else if(opcode == 0xB8) { ins("clv");
} else if(opcode == 0xD8) { ins("cld");
} else if(opcode == 0xF8) { ins("sed");
} else if((opcode & 0x1F) == 0x09) {
if(opcode == 0x89) ins("bit #%I");
else ins("%A #%I", opcode);
} else if((opcode & 0x1F) == 0x19) { ins("%A %W,y" , opcode);
} else if(opcode == 0x0A) { ins("asl");
} else if(opcode == 0x2A) { ins("rol");
} else if(opcode == 0x4A) { ins("lsr");
} else if(opcode == 0x6A) { ins("ror");
} else if(opcode == 0x8A) { ins("txa");
} else if(opcode == 0xAA) { ins("tax");
} else if(opcode == 0xCA) { ins("dex");
} else if(opcode == 0xEA) { ins("nop");
} else if(opcode == 0x1A) { ins("inc");
} else if(opcode == 0x3A) { ins("dec");
} else if(opcode == 0x5A) { ins("phy");
} else if(opcode == 0x7A) { ins("ply");
} else if(opcode == 0x9A) { ins("txs");
} else if(opcode == 0xBA) { ins("tsx");
} else if(opcode == 0xDA) { ins("phx");
} else if(opcode == 0xFA) { ins("plx");
} else if(opcode == 0x0B) { ins("phd");
} else if(opcode == 0x2B) { ins("pld");
} else if(opcode == 0x4B) { ins("phk");
} else if(opcode == 0x6B) { ins("rtl"); if(flag_return) { mflag = mflag_default; xflag = xflag_default; }
} else if(opcode == 0x8B) { ins("phb");
} else if(opcode == 0xAB) { ins("plb");
} else if(opcode == 0xCB) { ins("wai");
} else if(opcode == 0xEB) { ins("xba");
} else if(opcode == 0x1B) { ins("tcs");
} else if(opcode == 0x3B) { ins("tsc");
} else if(opcode == 0x5B) { ins("tcd");
} else if(opcode == 0x7B) { ins("tdc");
} else if(opcode == 0x9B) { ins("txy");
} else if(opcode == 0xBB) { ins("tyx");
} else if(opcode == 0xDB) { ins("stp");
} else if(opcode == 0xFB) { ins("xce");
} else if(opcode == 0x0C) { ins("tsb %W");
} else if(opcode == 0x2C) { ins("bit %W");
} else if(opcode == 0x4C) { ins("jmp %W");
} else if(opcode == 0x6C) { ins("jmp (%W)");
} else if(opcode == 0x8C) { ins("sty %W");
} else if(opcode == 0xAC) { ins("ldy %W");
} else if(opcode == 0xCC) { ins("cpy %W");
} else if(opcode == 0xEC) { ins("cpx %W");
} else if(opcode == 0x1C) { ins("trb %W");
} else if(opcode == 0x3C) { ins("bit %W,x");
} else if(opcode == 0x5C) { ins("jmp %L");
} else if(opcode == 0x7C) { ins("jmp (%W,x)");
} else if(opcode == 0x9C) { ins("stz %W");
} else if(opcode == 0xBC) { ins("ldy %W,x");
} else if(opcode == 0xDC) { ins("jmp [%W]");
} else if(opcode == 0xFC) { ins("jsr (%W,x)");
} else if((opcode & 0x1F) == 0x0D) { ins("%A %W" , opcode);
} else if((opcode & 0x1F) == 0x1D) { ins("%A %W,x" , opcode);
} else if(((opcode & 0x1F) == 0x0E) && ((opcode & 0xC0) != 0x80)) {
ins("%M %W", opcode);
} else if(opcode == 0x8E) { ins("stx %W");
} else if(opcode == 0xAE) { ins("ldx %W");
} else if(((opcode & 0x1F) == 0x1E) && ((opcode & 0xC0) != 0x80)) {
ins("%M %W,x", opcode);
} else if(opcode == 0x9E) { ins("stz %W,x");
} else if(opcode == 0xBE) { ins("ldx %W,y");
} else if((opcode & 0x1F) == 0x0F) { ins("%A %L" , opcode);
} else if((opcode & 0x1F) == 0x1F) { ins("%A %L,x" , opcode);
} else { ins("???"); }
}
////////////////////////////////////////////////////////////////////////////////
static FILE* infile = NULL;
static uint32_t infile_bytes_left;
static int getbyte(void) {
if(infile_bytes_left) {
int n = fgetc(infile);
if(n == EOF) {
infile_bytes_left = 0;
return -1;
} else {
infile_bytes_left--;
return (n & 0xFF);
}
}
return -1;
}
static void disasm_range(uint32_t fileoffset, uint32_t len, uint32_t addr) {
fseeko(infile, fileoffset, SEEK_SET);
dasm_address = addr;
infile_bytes_left = len;
mflag = mflag_default;
xflag = xflag_default;
fetchn = unfetchn = 0;
while(infile_bytes_left > 0) {
disassemble_one();
}
}
static uint32_t gethex(const char* s) {
if(!s[0]) return 0;
if(s[0] == '$') s++;
if(s[0] == '0' && (s[1] == 'x' || s[1] == 'X')) s += 2;
return (uint32_t)strtoul(s, NULL, 16);
}
////////////////////////////////////////////////////////////////////////////////
int main(int argc, char** argv) {
const char* infilename;
uint32_t arg_start;
uint32_t arg_len;
uint32_t arg_addr;
int option_argn = 4;
normalize_argv0(argv[0]);
if(argc < 4) {
banner();
printf(
"Usage: %s imagefile start address [length] [options]\n"
"Output is written to stdout. All values must be given in hex.\n"
"If no length is given, disassembly will stop at the end of the bank.\n"
"Options:\n"
" -m0 Assume M flag = 0\n"
" -m1 Assume M flag = 1 (default)\n"
" -x0 Assume X flag = 0 (default)\n"
" -x1 Assume X flag = 1\n"
" -noreturn Disable flag reset after RTS/RTL/RTI\n"
" -noguess Disable flag guess on BRK/COP/WDM/STP\n"
" -nofollow Disable REP/SEP following (not recommended)\n",
argv[0]
);
return 1;
}
infilename = argv[1];
arg_start = gethex(argv[2]);
arg_addr = gethex(argv[3]);
arg_len = ((arg_addr & 0xFFFF) ^ 0xFFFF) + 1;
if((argc >= 5) && (argv[4][0] != '-')) {
arg_len = gethex(argv[4]);
option_argn = 5;
}
while(option_argn < argc) {
const char* s = argv[option_argn];
if (!strcmp(s, "-m0")) { mflag_default = 0;
} else if(!strcmp(s, "-m1")) { mflag_default = 1;
} else if(!strcmp(s, "-x0")) { xflag_default = 0;
} else if(!strcmp(s, "-x1")) { xflag_default = 1;
} else if(!strcmp(s, "-noreturn")) { flag_return = 0;
} else if(!strcmp(s, "-noguess" )) { flag_guess = 0;
} else if(!strcmp(s, "-nofollow")) { flag_follow = 0;
} else {
printf("unknown option: %s\n", s);
return 1;
}
option_argn++;
}
printf(
"Disassembly of %s\n"
"Starting at offset $%lX for $%lX bytes\n"
"65816 address starts at $%lX\n"
"return=%s guess=%s follow=%s\n"
"\n",
infilename,
(unsigned long)arg_start,
(unsigned long)arg_len,
(unsigned long)arg_addr,
flag_return ? "on" : "off",
flag_guess ? "on" : "off",
flag_follow ? "on" : "off"
);
infile = fopen(infilename, "rb");
if(!infile) {
fprintf(stderr, "Error: %s: %s\n", infilename, strerror(errno));
return 1;
}
disasm_range(arg_start, arg_len, arg_addr);
fclose(infile);
return 0;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/id3point.c 0000644 0001750 0001750 00000020525 11731303760 016227 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "id3point - Pointless ID3v1 Tagger"
#define COPYR "Copyright (C) 2001,2010 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
enum {
TITLE_START = 3,
TITLE_LEN = 30,
ARTIST_START = 33,
ARTIST_LEN = 30,
ALBUM_START = 63,
ALBUM_LEN = 30,
YEAR_START = 93,
YEAR_LEN = 4,
COMMENT_START = 97,
COMMENT_LEN = 29,
TRACKNUM_START = 126,
GENRE_START = 127
};
////////////////////////////////////////////////////////////////////////////////
static void usage(const char *name) {
banner();
printf(
"Usage: %s [options] mp3file(s)\n"
"\n"
"Options:\n"
" -t title Set ID3 title -t- Clear ID3 title\n"
" -a artist Set ID3 artist -a- Clear ID3 artist\n"
" -m album Set ID3 album -m- Clear ID3 album\n"
" -y year Set ID3 year -y- Clear ID3 year\n"
" -c comment Set ID3 comment -c- Clear ID3 comment\n"
" -k track# Set ID3 track # -k- Clear ID3 track #\n"
" -g genre# Set ID3 genre # -g- Clear ID3 genre #\n"
" -tf Set ID3 title based on the filename\n"
"\n"
"Notes:\n"
" - Only ID3v1 tags are supported.\n"
" - The track number increments automatically for each additional file.\n"
" - The -tf option will turn \"Artist - Title.mp3\" into \"Title\", but\n"
" be sure to check the titles by hand in case it gets confused.\n",
name
);
}
////////////////////////////////////////////////////////////////////////////////
static void cleanstring(
char *s,
int size
) {
int l = strlen(s) + 1;
int z = size - l;
if(z > 0) memset(s + l, 0, z);
}
////////////////////////////////////////////////////////////////////////////////
int main(
int argc,
char **argv
) {
FILE *f = NULL;
int returncode = 0;
int n;
int8_t set_title = 0; char title [TITLE_LEN +1] = {0};
int8_t set_artist = 0; char artist [ARTIST_LEN +1] = {0};
int8_t set_album = 0; char album [ALBUM_LEN +1] = {0};
int8_t set_year = 0; char year [YEAR_LEN +1] = {0};
int8_t set_comment = 0; char comment[COMMENT_LEN+1] = {0};
int8_t set_tracknum = 0; int tracknum = 0;
int8_t set_genre = 0; int genre = 0;
normalize_argv0(argv[0]);
for(n = 1; n < argc; n++) {
if(argv[n][0] != '-') break;
if(!strcmp(argv[n], "--")) { n++; break; }
if(!strcmp(argv[n], "-t")) { n++; if(n >= argc) { usage(argv[0]); goto error; } set_title = 1; strncpy(title , argv[n], TITLE_LEN ); }
if(!strcmp(argv[n], "-a")) { n++; if(n >= argc) { usage(argv[0]); goto error; } set_artist = 1; strncpy(artist , argv[n], ARTIST_LEN ); }
if(!strcmp(argv[n], "-m")) { n++; if(n >= argc) { usage(argv[0]); goto error; } set_album = 1; strncpy(album , argv[n], ALBUM_LEN ); }
if(!strcmp(argv[n], "-y")) { n++; if(n >= argc) { usage(argv[0]); goto error; } set_year = 1; strncpy(year , argv[n], YEAR_LEN ); }
if(!strcmp(argv[n], "-c")) { n++; if(n >= argc) { usage(argv[0]); goto error; } set_comment = 1; strncpy(comment, argv[n], COMMENT_LEN); }
if(!strcmp(argv[n], "-k")) { n++; if(n >= argc) { usage(argv[0]); goto error; } set_tracknum = 1; tracknum = atoi(argv[n]); }
if(!strcmp(argv[n], "-g")) { n++; if(n >= argc) { usage(argv[0]); goto error; } set_genre = 1; genre = atoi(argv[n]); }
if(!strcmp(argv[n], "-t-")) { set_title = 1; title [0] = 0; }
if(!strcmp(argv[n], "-a-")) { set_artist = 1; artist [0] = 0; }
if(!strcmp(argv[n], "-m-")) { set_album = 1; album [0] = 0; }
if(!strcmp(argv[n], "-y-")) { set_year = 1; year [0] = 0; }
if(!strcmp(argv[n], "-c-")) { set_comment = 1; comment[0] = 0; }
if(!strcmp(argv[n], "-k-")) { set_tracknum = 1; tracknum = 0; }
if(!strcmp(argv[n], "-g-")) { set_genre = 1; genre = 255; }
if(!strcmp(argv[n], "-tf")) { set_title = -1; }
}
if(n >= argc) {
usage(argv[0]);
goto error;
}
cleanstring(title , sizeof(title ));
cleanstring(artist , sizeof(artist ));
cleanstring(album , sizeof(album ));
cleanstring(year , sizeof(year ));
cleanstring(comment, sizeof(comment));
for(; n < argc; n++) {
char *mp3filename = argv[n];
printf("%s: ", mp3filename);
if(f) { fclose(f); f = NULL; }
f = fopen(mp3filename, "r+b");
if(!f) {
printf("%s\n", strerror(errno));
returncode = 1;
continue;
}
//
// File must be at least 128 bytes
//
fseeko(f, 0, SEEK_END);
if(ftello(f) < 128) {
fclose(f); f = NULL;
printf("file is too short\n");
returncode = 1;
continue;
}
//
// See if there's an ID3 tag, and if not, create one
//
fseeko(f, -128, SEEK_END);
if(
(fgetc(f) != 'T') ||
(fgetc(f) != 'A') ||
(fgetc(f) != 'G')
) {
int i;
printf("(creating tag) ");
fseeko(f, 0, SEEK_END);
fputc('T', f);
fputc('A', f);
fputc('G', f);
for(i = 3; i < 127; i++) fputc(0, f);
fputc(255, f);
}
//
// Get title from the filename if we need to
//
if(set_title == -1) {
char *m;
m = strrchr(mp3filename, '-');
if(!m) {
m = mp3filename;
} else {
m++;
}
//
// Skip spaces/underscores
//
while(((*m) == ' ') || ((*m) == '_')) m++;
//
// Skip track numbers
//
while((*m >= '0') && (*m <= '9')) m++;
//
// Skip more spaces/underscores
//
while(((*m) == ' ') || ((*m) == '_')) m++;
strncpy(title, m, TITLE_LEN);
m = strchr(title, '.');
if(m) *m = 0;
while((m = strchr (title, '_')) != NULL) { *m = ' '; }
while(strlen(title) && title[strlen(title) - 1] == ' ') {
title[strlen(title) - 1] = 0; // rare case: difficult to test in DOS
}
cleanstring(title, sizeof(title));
}
//
// Set various things
//
if(set_title ) { fseeko(f, -128 + TITLE_START , SEEK_END); fwrite(title , TITLE_LEN , 1, f); }
if(set_artist ) { fseeko(f, -128 + ARTIST_START , SEEK_END); fwrite(artist , ARTIST_LEN , 1, f); }
if(set_album ) { fseeko(f, -128 + ALBUM_START , SEEK_END); fwrite(album , ALBUM_LEN , 1, f); }
if(set_year ) { fseeko(f, -128 + YEAR_START , SEEK_END); fwrite(year , YEAR_LEN , 1, f); }
if(set_comment ) { fseeko(f, -128 + COMMENT_START , SEEK_END); fwrite(comment, COMMENT_LEN, 1, f); }
if(set_tracknum) { fseeko(f, -128 + TRACKNUM_START, SEEK_END); fputc(tracknum, f); }
if(set_genre ) { fseeko(f, -128 + GENRE_START , SEEK_END); fputc(genre, f); }
fclose(f); f = NULL;
printf("ok\n");
if(tracknum) {
tracknum++;
}
}
goto done;
error:
returncode = 1;
done:
if(f) { fclose(f); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/pecompat.c 0000644 0001750 0001750 00000041465 11731303760 016314 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "pecompat - Maximize compatibility of a Win32 PE file"
#define COPYR "Copyright (C) 2012 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
//
// Seek in a way that doesn't involve seeking past the end of the file
//
void safe_seek(FILE* f, unsigned long offset) {
long limit;
clearerr(f);
fseek(f, 0, SEEK_END);
if(ferror(f)) { return; }
limit = ftell(f);
if(ferror(f)) { return; }
if(limit >= 0) {
if(offset > ((unsigned long)limit)) {
fgetc(f); // force EOF
return;
}
}
fseek(f, offset, SEEK_SET);
}
////////////////////////////////////////////////////////////////////////////////
unsigned get16lsb(FILE* f) {
int c0, c1;
clearerr(f);
c0 = fgetc(f);
if(ferror(f) || feof(f)) { return 0; }
c1 = fgetc(f);
if(ferror(f) || feof(f)) { return 0; }
return
(((unsigned)(c1 & 0xff)) << 8) +
(((unsigned)(c0 & 0xff)) );
}
unsigned get16lsb_at(FILE* f, unsigned long offset) {
safe_seek(f, offset);
if(ferror(f) || feof(f)) { return 0; }
return get16lsb(f);
}
unsigned long get32lsb(FILE* f) {
int c0, c1, c2, c3;
clearerr(f);
c0 = fgetc(f);
if(ferror(f) || feof(f)) { return 0; }
c1 = fgetc(f);
if(ferror(f) || feof(f)) { return 0; }
c2 = fgetc(f);
if(ferror(f) || feof(f)) { return 0; }
c3 = fgetc(f);
if(ferror(f) || feof(f)) { return 0; }
return
(((unsigned long)(c3 & 0xff)) << 24) +
(((unsigned long)(c2 & 0xff)) << 16) +
(((unsigned long)(c1 & 0xff)) << 8) +
(((unsigned long)(c0 & 0xff)) );
}
unsigned long get32lsb_at(FILE* f, unsigned long offset) {
safe_seek(f, offset);
if(ferror(f) || feof(f)) { return 0; }
return get32lsb(f);
}
int put16lsb(unsigned value, FILE* f) {
clearerr(f);
fputc(((value >> 0) & 0xff), f);
if(ferror(f) || feof(f)) { return 1; }
fputc(((value >> 8) & 0xff), f);
if(ferror(f) || feof(f)) { return 1; }
fflush(f);
return 0;
}
int put16lsb_at(unsigned value, FILE* f, unsigned long offset) {
safe_seek(f, offset);
if(ferror(f) || feof(f)) { return 0; }
return put16lsb(value, f);
}
int put32lsb(unsigned long value, FILE* f) {
clearerr(f);
fputc(((value >> 0) & 0xff), f);
if(ferror(f) || feof(f)) { return 1; }
fputc(((value >> 8) & 0xff), f);
if(ferror(f) || feof(f)) { return 1; }
fputc(((value >> 16) & 0xff), f);
if(ferror(f) || feof(f)) { return 1; }
fputc(((value >> 24) & 0xff), f);
if(ferror(f) || feof(f)) { return 1; }
fflush(f);
return 0;
}
int put32lsb_at(unsigned long value, FILE* f, unsigned long offset) {
safe_seek(f, offset);
if(ferror(f) || feof(f)) { return 0; }
return put32lsb(value, f);
}
////////////////////////////////////////////////////////////////////////////////
//
// Convert virtual address to file offset
// Returns 0 if not found
//
unsigned long virtual_to_fileoffset(FILE* f, unsigned long v) {
unsigned long pe;
unsigned long imagebase;
unsigned long obj;
unsigned long nobjs;
unsigned long i;
pe = get32lsb_at(f, 0x3c);
if(ferror(f) || feof(f)) { return 0; }
imagebase = get32lsb_at(f, pe + 0x34);
if(ferror(f) || feof(f)) { return 0; }
nobjs = get16lsb_at(f, pe + 0x06);
if(ferror(f) || feof(f)) { return 0; }
obj = pe + 0x18 + get16lsb_at(f, pe + 0x14);
if(ferror(f) || feof(f)) { return 0; }
for(i = 0; i < nobjs; i++) {
unsigned long record = 0x28 * i + obj;
unsigned long vsize;
unsigned long vaddr;
unsigned long psize;
unsigned long fileoffset;
unsigned long size;
vsize = get32lsb_at(f, record + 0x08);
if(ferror(f) || feof(f)) { return 0; }
vaddr = get32lsb_at(f, record + 0x0c) + imagebase;
if(ferror(f) || feof(f)) { return 0; }
psize = get32lsb_at(f, record + 0x10);
if(ferror(f) || feof(f)) { return 0; }
fileoffset = get32lsb_at(f, record + 0x14);
if(ferror(f) || feof(f)) { return 0; }
size = vsize;
if(size > psize) { size = psize; }
if((v >= vaddr) && (v < (vaddr + size))) {
return (v - vaddr) + fileoffset;
}
}
return 0;
}
////////////////////////////////////////////////////////////////////////////////
void dumpstring(FILE* f, unsigned long offset) {
safe_seek(f, offset);
if(ferror(f) || feof(f)) { return; }
for(;;) {
int c = fgetc(f);
if((c == 0) || (c == EOF) || (!isprint(c))) { break; }
fputc(c, stdout);
}
}
////////////////////////////////////////////////////////////////////////////////
int fixpe(const char* filename) {
int returnvalue = 1;
FILE* f = NULL;
unsigned long pe_header;
unsigned cpu_type;
unsigned long old_pe_checksum;
unsigned long new_pe_checksum;
f = fopen(filename, "r+b");
if(!f) { goto fileerror; }
//
// Check MZ header
//
{ unsigned mz = get16lsb_at(f, 0);
if(ferror(f) || feof(f)) { goto fileerror; }
if(mz != 0x5a4d) {
printf("%s: Error: Incorrect MZ signature\n", filename);
goto error;
}
}
//
// Check PE header
//
pe_header = get32lsb_at(f, 0x3c);
if(ferror(f)) { goto fileerror; }
if(feof(f)) {
printf("%s: Error: Too short, not a PE file\n", filename);
goto error;
}
{ unsigned long pe = get32lsb_at(f, pe_header);
if(ferror(f)) { goto fileerror; }
if(feof(f)) {
printf("%s: Error: PE signature not found\n", filename);
goto error;
}
if(pe != 0x00004550) {
printf("%s: Error: Incorrect PE signature\n", filename);
goto error;
}
}
//
// Check CPU type (but don't patch it)
//
cpu_type = get16lsb_at(f, pe_header+0x04);
if(ferror(f) || feof(f)) { goto fileerror; }
switch(cpu_type) {
case 0x014c:
// 80386 - OK
break;
case 0x014d:
case 0x014e:
// 80486 or 80586 - warn
printf("%s: Warning: CPU type of 0x%x is not strictly 80386 compatible\n", filename, cpu_type);
break;
case 0x8664:
// x86-64 - will not work
printf("%s: Error: x86-64 architecture; not supported\n", filename);
goto error;
default:
// Unknown architecture
printf("%s: Error: Unknown CPU architecture 0x%x\n", filename, cpu_type);
goto error;
}
//
// Patch the linker timestamp
//
{ unsigned long old_timestamp;
unsigned long new_timestamp = 0;
old_timestamp = get32lsb_at(f, pe_header+0x08);
if(ferror(f) || feof(f)) { goto fileerror; }
if(old_timestamp != new_timestamp) {
printf("%s: Patching linker timestamp: 0x%lx -> 0x%lx\n",
filename,
old_timestamp,
new_timestamp
);
if(put32lsb_at(new_timestamp, f, pe_header+0x08)) { goto fileerror; }
}
}
//
// Patch the OS version
//
{ unsigned old_os_major;
unsigned old_os_minor;
unsigned new_os_major = 4;
unsigned new_os_minor = 0;
old_os_major = get16lsb_at(f, pe_header+0x40);
if(ferror(f) || feof(f)) { goto fileerror; }
old_os_minor = get16lsb_at(f, pe_header+0x42);
if(ferror(f) || feof(f)) { goto fileerror; }
if(
old_os_major != new_os_major ||
old_os_minor != new_os_minor
) {
printf("%s: Patching OS version: %u.%u -> %u.%u\n",
filename,
old_os_major, old_os_minor,
new_os_major, new_os_minor
);
if(put16lsb_at(new_os_major, f, pe_header+0x40)) { goto fileerror; }
if(put16lsb_at(new_os_minor, f, pe_header+0x42)) { goto fileerror; }
}
}
//
// Patch the subsystem version
//
{ unsigned old_sub_major;
unsigned old_sub_minor;
unsigned new_sub_major = 4;
unsigned new_sub_minor = 0;
old_sub_major = get16lsb_at(f, pe_header+0x48);
if(ferror(f) || feof(f)) { goto fileerror; }
old_sub_minor = get16lsb_at(f, pe_header+0x4a);
if(ferror(f) || feof(f)) { goto fileerror; }
if(
old_sub_major != new_sub_major ||
old_sub_minor != new_sub_minor
) {
printf("%s: Patching subsystem version: %u.%u -> %u.%u\n",
filename,
old_sub_major, old_sub_minor,
new_sub_major, new_sub_minor
);
if(put16lsb_at(new_sub_major, f, pe_header+0x48)) { goto fileerror; }
if(put16lsb_at(new_sub_minor, f, pe_header+0x4a)) { goto fileerror; }
}
}
//
// Grab the old PE checksum
//
old_pe_checksum = get32lsb_at(f, pe_header+0x58);
if(ferror(f) || feof(f)) { goto fileerror; }
//
// Calculate the new PE checksum
//
new_pe_checksum = 0;
{ unsigned long offset = 0;
safe_seek(f, 0);
if(ferror(f) || feof(f)) { goto fileerror; }
for(;;) {
unsigned long len = 0;
int c0, c1;
c0 = fgetc(f);
if(ferror(f)) { goto fileerror; }
if(c0 == EOF) { break; } else { len++; }
c1 = fgetc(f);
if(ferror(f)) { goto fileerror; }
if(c1 == EOF) { c1 = 0; } else { len++; }
//
// Treat existing checksum field as zero for purposes of checksumming
//
if(
offset >= (pe_header + 0x58) &&
offset < (pe_header + 0x5c)
) { c0 = c1 = 0; }
//
// Add word with carry
//
{ unsigned long word =
(((unsigned long)(c0 & 0xff)) << 0) +
(((unsigned long)(c1 & 0xff)) << 8);
new_pe_checksum += word;
new_pe_checksum += (new_pe_checksum >> 16);
new_pe_checksum &= ((unsigned long)(0xffff));
}
offset += len;
}
//
// Finally, add the file size
//
new_pe_checksum += offset;
}
//
// Patch checksum if necessary
//
if(old_pe_checksum != new_pe_checksum) {
printf("%s: Patching checksum: 0x%lx -> 0x%lx\n",
filename,
old_pe_checksum,
new_pe_checksum
);
if(put32lsb_at(new_pe_checksum, f, pe_header+0x58)) { goto fileerror; }
}
//
// Look at the import table
//
{ unsigned long imagebase;
unsigned long import_table_vaddr;
unsigned long import_table_size;
unsigned long import_table_fileoffset;
unsigned long i;
unsigned long warned_functions = 0;
unsigned long max_warned_functions = 5;
imagebase = get32lsb_at(f, pe_header+0x34);
if(ferror(f) || feof(f)) { goto fileerror; }
import_table_vaddr = get32lsb_at(f, pe_header+0x80) + imagebase;
if(ferror(f) || feof(f)) { goto fileerror; }
import_table_size = get32lsb_at(f, pe_header+0x84);
if(ferror(f) || feof(f)) { goto fileerror; }
import_table_fileoffset = virtual_to_fileoffset(f, import_table_vaddr);
if(ferror(f) || feof(f)) { goto fileerror; }
if(!import_table_fileoffset) {
printf("%s: Error: Unable to find import table\n", filename);
goto error;
}
for(i = 0; i < import_table_size; i += 0x14) {
unsigned long function_list_vaddr;
unsigned long dll_name_vaddr;
unsigned long function_list_fileoffset;
unsigned long dll_name_fileoffset;
function_list_vaddr = get32lsb_at(f, import_table_fileoffset + i + 0x00);
if(ferror(f) || feof(f)) { goto fileerror; }
dll_name_vaddr = get32lsb_at(f, import_table_fileoffset + i + 0x0c);
if(ferror(f) || feof(f)) { goto fileerror; }
//
// These lists seem to be NULL-terminated
//
if(function_list_vaddr == 0) { break; }
if(dll_name_vaddr == 0) { break; }
function_list_vaddr += imagebase;
dll_name_vaddr += imagebase;
function_list_fileoffset = virtual_to_fileoffset(f, function_list_vaddr);
if(ferror(f) || feof(f)) { goto fileerror; }
dll_name_fileoffset = virtual_to_fileoffset(f, dll_name_vaddr);
if(ferror(f) || feof(f)) { goto fileerror; }
if(!function_list_fileoffset) {
printf("%s: Error: Malformed import table: Unable to map function list address 0x%lx\n",
filename,
function_list_vaddr
);
goto error;
}
if(!dll_name_fileoffset) {
printf("%s: Error: Malformed import table: Unable to map DLL filename address 0x%lx\n",
filename,
dll_name_vaddr
);
goto error;
}
for(;;) {
int c0 = 0, c1 = 0;
unsigned long methodname_vaddr;
unsigned long methodname_fileoffset;
methodname_vaddr = get32lsb_at(f, function_list_fileoffset);
if(ferror(f) || feof(f)) { goto fileerror; }
if(methodname_vaddr == 0) { break; }
methodname_vaddr += imagebase;
function_list_fileoffset += 4;
methodname_fileoffset = virtual_to_fileoffset(f, methodname_vaddr);
if(ferror(f) || feof(f)) { goto fileerror; }
if(!methodname_fileoffset) {
printf("%s: Error: Malformed import table: Unable to map method name address 0x%lx\n",
filename,
methodname_vaddr
);
goto error;
}
//
// Method name ending in 'W'?
//
safe_seek(f, methodname_fileoffset + 2);
if(ferror(f) || feof(f)) { goto fileerror; }
for(;;) {
c0 = c1;
c1 = fgetc(f);
if(c1 == 0 || c1 == EOF) { break; }
}
if(c0 == 'W') {
if(warned_functions < max_warned_functions) {
if(warned_functions == 0) {
printf("%s: Warning: The following Unicode imports are used:\n",
filename
);
}
printf(" ");
dumpstring(f, dll_name_fileoffset);
printf(": ");
dumpstring(f, methodname_fileoffset + 2);
printf("\n");
}
warned_functions++;
}
}
}
if(warned_functions > max_warned_functions) {
printf(" ...plus %lu more\n", (warned_functions - max_warned_functions));
}
}
printf("%s: Done\n", filename);
returnvalue = 0;
goto done;
fileerror:
if((!f) || ferror(f)) {
printf("%s: Error: %s\n", filename, strerror(errno));
} else if(feof(f)) {
printf("%s: Error: Unexpected end of file\n", filename);
} else {
printf("%s: Error: Unknown error\n", filename);
}
goto error;
error:
returnvalue = 1;
done:
if(f) { fclose(f); }
return returnvalue;
}
////////////////////////////////////////////////////////////////////////////////
int main(int argc, char** argv) {
int error = 0;
int i;
normalize_argv0(argv[0]);
if(argc < 2) {
banner();
printf("Usage: %s pe_exe_file(s)\n", argv[0]);
return 1;
}
for(i = 1; i < argc; i++) {
if(fixpe(argv[i])) { error = 1; }
}
return error;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/rels.c 0000644 0001750 0001750 00000014302 11731303760 015437 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "rels - Relative Searcher"
#define COPYR "Copyright (C) 2002,2010 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
void report(
off_t filepos,
const uint8_t* src,
size_t len,
const char* type
) {
fprinthex(stdout, filepos, 8);
printf(": ");
while(len--) {
uint8_t c = *src++;
printf("%02X ", c);
}
printf("(%s)\n", type);
}
////////////////////////////////////////////////////////////////////////////////
int matchtest(
const uint8_t* string,
const uint8_t* buffer,
size_t increment,
int shift
) {
int16_t stringstart;
int16_t bufferstart;
for(;;) {
uint8_t c = *string;
if(!c) { return 1; }
if(c != '.') {
stringstart = ((int16_t)( c )) & 0xFF;
bufferstart = ((int16_t)(*buffer)) & 0xFF;
break;
}
string++;
buffer += increment;
}
for(;;) {
uint8_t c = *string;
if(!c) { break; }
if(c != '.') {
int16_t stringnow = ((int16_t)( c )) & 0xFF;
int16_t buffernow = ((int16_t)(*buffer)) & 0xFF;
stringnow -= stringstart;
buffernow -= bufferstart;
stringnow <<= shift;
if(stringnow != buffernow) { return 0; }
}
string++;
buffer += increment;
}
return 1;
}
////////////////////////////////////////////////////////////////////////////////
off_t relsearch(
const uint8_t* string,
const char* filename
) {
FILE* f = NULL;
uint8_t* buffer = NULL;
size_t stringlen;
size_t buffersize;
off_t matchesfound = 0;
off_t bufferbase;
size_t bufferpos;
size_t bufferlen;
//
// Examine length of search string
//
stringlen = strlen((const char*)string);
// Avoid overflow
if(stringlen > (((size_t)(-1)) / 2)) {
printf("String is too long\n"); // very rare case
goto done; // very rare case
}
//
// Allocate buffer
//
buffersize = 2 * stringlen - 1;
if(buffersize < 4096) {
buffersize = 4096;
}
buffer = malloc(buffersize);
if(!buffer) {
printf("Out of memory\n");
goto done;
}
f = fopen(filename, "rb");
if(!f) { goto error_f; }
printf("%s: ", filename);
bufferbase = 0;
bufferpos = 0;
bufferlen = 0;
for(;;) {
size_t readsize;
if(bufferlen && ((buffersize - bufferpos) < (2 * stringlen - 1))) {
memmove(buffer, buffer + bufferpos, bufferlen);
bufferbase += bufferpos;
bufferpos = 0;
}
readsize = buffersize - (bufferpos + bufferlen);
if((readsize > 0) && (!feof(f))) {
readsize = fread(buffer + (bufferpos + bufferlen), 1, readsize, f);
bufferlen += readsize;
}
if(bufferlen < stringlen) break;
if(matchtest(string, buffer + bufferpos, 1, 0)) { if(matchesfound < 1) printf("\n"); matchesfound++; report(bufferbase + bufferpos, buffer + bufferpos, stringlen, "normal"); }
else if(matchtest(string, buffer + bufferpos, 1, 1)) { if(matchesfound < 1) printf("\n"); matchesfound++; report(bufferbase + bufferpos, buffer + bufferpos, stringlen, "double"); }
if(bufferlen >= (2 * stringlen - 1)) {
if(matchtest(string, buffer + bufferpos, 2, 0)) { if(matchesfound < 1) printf("\n"); matchesfound++; report(bufferbase + bufferpos, buffer + bufferpos, 2 * stringlen - 1, "wide"); }
else if(matchtest(string, buffer + bufferpos, 2, 1)) { if(matchesfound < 1) printf("\n"); matchesfound++; report(bufferbase + bufferpos, buffer + bufferpos, 2 * stringlen - 1, "wide double"); }
}
bufferpos++;
bufferlen--;
}
printf(
"%lu match%s found\n",
(unsigned long)matchesfound,
(matchesfound == 1) ? "" : "es"
);
goto done;
error_f:
printfileerror(f, filename);
done:
if(f != NULL) { fclose(f); }
if(buffer != NULL) { free(buffer); }
return matchesfound;
}
////////////////////////////////////////////////////////////////////////////////
int main(int argc, char **argv) {
const uint8_t* string;
int i;
off_t total = 0;
normalize_argv0(argv[0]);
if(argc < 3) {
banner();
printf(
"Usage: %s string files\n"
"\n"
"Search string may include '.' characters as wildcards, but must include at\n"
"least two non-wildcard characters.\n",
argv[0]
);
return 1;
}
string = (const uint8_t*)(argv[1]);
{ size_t nwc = 0;
const uint8_t* s = string;
for(;;) {
uint8_t c = *s++;
if(!c) { break; }
if(c != '.') { nwc++; }
}
if(nwc < 2) {
printf(
"Search string must contain at least two non-wildcard characters\n"
);
return 1;
}
}
printf("Searching for \"%s\":\n", string);
for(i = 2; i < argc; i++) {
total += relsearch(string, argv[i]);
}
printf(
"Total: %lu %s found\n",
(unsigned long)total,
(total == 1) ? "match" : "matches"
);
return 0;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/screamf.c 0000644 0001750 0001750 00000063561 11731303760 016125 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "screamf - .AMF to .S3M converter"
#define COPYR "Copyright (C) 1996,2010 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
// S3M parapointer limit
static const off_t S3MFILESIZELIMIT = (off_t)0xFFFFFLU;
// Pattern size limit
static const off_t S3MPATTERNSIZELIMIT = (off_t) 0xFFFFLU;
////////////////////////////////////////////////////////////////////////////////
struct INSTRUMENT {
char name [33];
char filename[14];
uint8_t sampled;
uint32_t samplelength;
uint32_t loopstart;
uint32_t loopend;
uint16_t c4spd;
uint8_t defaultvol;
uint8_t* sampledata;
};
struct PLACE {
int8_t note;
int8_t octave;
int8_t instrument;
int8_t effect;
int16_t volume;
int16_t parameter;
};
struct TRACK {
struct PLACE place[64];
};
struct MODULE {
char title[33];
uint8_t insnum;
uint8_t ordnum;
size_t tracknum; // AMF only
uint8_t channels;
int8_t panposition[32];
uint8_t tempo;
uint8_t speed;
};
////////////////////////////////////////////////////////////////////////////////
static void fput32lsb(uint32_t c, FILE* stream) {
fputc(((c ) & 0xFF), stream);
fputc(((c >> 8) & 0xFF), stream);
fputc(((c >> 16) & 0xFF), stream);
fputc(((c >> 24) & 0xFF), stream);
}
static void fput16lsb(uint16_t c, FILE* stream) {
fputc(((c ) & 0xFF), stream);
fputc(((c >> 8) & 0xFF), stream);
}
static uint32_t fget32lsb(FILE* stream) {
uint32_t t;
t = (((uint32_t)(fgetc(stream) & 0xFF)) << 0);
t |= (((uint32_t)(fgetc(stream) & 0xFF)) << 8);
t |= (((uint32_t)(fgetc(stream) & 0xFF)) << 16);
t |= (((uint32_t)(fgetc(stream) & 0xFF)) << 24);
return t;
}
static uint16_t fget16lsb(FILE* stream) {
uint16_t t;
t = (((uint16_t)(fgetc(stream) & 0xFF)) << 0);
t |= (((uint16_t)(fgetc(stream) & 0xFF)) << 8);
return t;
}
//
// Align file offset to a paragraph (16 bytes)
//
static void alignpara(FILE* f) {
while((ftello(f) & 0xF) != 0) {
fputc(0, f);
}
}
////////////////////////////////////////////////////////////////////////////////
//
// Returns nonzero on error
//
static int amf_decodetrack(
FILE* amffile,
struct TRACK* track,
uint8_t insnum
) {
int16_t i,c,n,row,num,effect;
struct PLACE* place = track->place;
//
// Initialize track to empty/unused
//
for(i = 0; i < 64; i++) {
place[i].note = -1;
place[i].octave = -1;
place[i].instrument = -1;
place[i].volume = -1;
place[i].effect = -1;
place[i].parameter = -1;
}
n = fgetc(amffile);
num = fgetc(amffile); // lost?
effect = fgetc(amffile); // lost?
for(c = 0; c < n; c++) {
row = fgetc(amffile);
num = fgetc(amffile);
effect = fgetc(amffile);
if(row == 0xFF) { break; }
if(row >= 64) {
printf("row out of bounds");
goto errorat;
}
if(num == 0x80) {
for(i = row; i < 64; i++) {
if(effect >= insnum) {
printf("instrument out of bounds");
goto errorat;
}
place[i].instrument = (int8_t)effect;
}
} else if(num > 0x80) {
place[row].effect = num & 0x7F;
place[row].parameter = (int8_t)effect;
} else {
place[row].note = num % 12;
place[row].octave = num / 12;
place[row].volume = effect;
}
}
//
// Postprocess the track
//
for(i = 0; i < 64; i++) {
//
// remove phantom instruments
//
if(place[i].note == -1) {
place[i].instrument = -1;
}
//
// Convert effects
//
switch(place[i].effect) {
case -1:
break;
case 1: // Set Speed [A]
place[i].effect='A'-64;
break;
case 2: // Volume Slide [D]
place[i].effect='D'-64;
//
// Convert to S3M style
//
if(place[i].parameter < 0) {
place[i].parameter=-(place[i].parameter);
} else {
place[i].parameter<<=4;
}
break;
case 3: // Volume Change
// (What's this doing in here?)
place[i].volume = place[i].parameter;
place[i].effect = -1;
place[i].parameter = -1;
break;
case 4: // Portamento [E]+, [F]-
if(place[i].parameter < 0) {
place[i].effect='F'-64;
place[i].parameter=-(place[i].parameter);
} else {
place[i].effect='E'-64;
}
break;
case 6: // Tone Portamento [G]
place[i].effect='G'-64;
break;
case 7: // Tremolo [R]
place[i].effect='R'-64;
break;
case 8: // [J]
place[i].effect='J'-64;
break;
case 9: // [H]
place[i].effect='H'-64;
break;
case 10: // [L] (negative)
place[i].effect='L'-64;
place[i].parameter=-(place[i].parameter);
break;
case 11: // [K] (negative)
place[i].effect='K'-64;
place[i].parameter=-(place[i].parameter);
break;
case 12: // [C]
place[i].effect='C'-64;
break;
case 13: // [B]
place[i].effect='B'-64;
break;
case 15: // [Q]
place[i].effect='Q'-64;
break;
case 16: // Set Sample Offset [O]
place[i].effect='O'-64;
break;
case 17: // Find Volume Slide [DxF]+, [DFx]-
place[i].effect='D'-64;
//
// convert to S3M style
//
if(place[i].parameter<(-14))place[i].parameter=(-14);
if(place[i].parameter>( 14))place[i].parameter=( 14);
if(place[i].parameter<0) {
place[i].parameter=-(place[i].parameter);
place[i].parameter|=0xF0;
} else if(place[i].parameter>0) {
place[i].parameter<<=4;
place[i].parameter|=0x0F;
} else {
place[i].effect=-1;
place[i].parameter=-1;
}
break;
case 18: // Fine Portamento [EF]+, [FF]-
if(place[i].parameter<0) {
place[i].effect='F'-64;
place[i].parameter=-(place[i].parameter);
} else {
place[i].effect='E'-64;
}
if(place[i].parameter>0xF)place[i].parameter=0xF;
place[i].parameter|=0xF0;
break;
case 21: // Set Tempo [T]
place[i].effect='T'-64;
break;
case 22: // Extra Fine Portamento [EE]+, [FE]-
if(place[i].parameter<0) {
place[i].effect='F'-64;
place[i].parameter=-(place[i].parameter);
} else {
place[i].effect='E'-64;
}
if(place[i].parameter>0xF)place[i].parameter=0xF;
place[i].parameter|=0xE0;
break;
case 23: // [X]
place[i].effect='X'-64;
break;
default: // Remove the unknown effect
printf(
"Unknown effect %02X-%02X\n",
place[i].effect,
place[i].parameter
);
place[i].effect=-1;
break;
}
}
return 0;
errorat:
printf(" @ 0x");
fprinthex(stdout, ftello(amffile), 1);
printf("\n");
return 1;
}
static void amf_decodeinstrument(
FILE* amffile,
struct INSTRUMENT* instrument
) {
size_t i;
instrument->sampled = fgetc(amffile);
for(i = 0; i < 32; i++) {
instrument->name[i] = fgetc(amffile);
}
instrument->name[i] = 0;
for(i = 0; i < 13; i++) {
instrument->filename[i] = fgetc(amffile);
}
instrument->filename[i] = 0;
fget32lsb(amffile); // TODO: unknown
instrument->samplelength = fget32lsb(amffile);
instrument->c4spd = fget16lsb(amffile);
instrument->defaultvol = fgetc (amffile);
instrument->loopstart = fget32lsb(amffile);
instrument->loopend = fget32lsb(amffile);
}
static void s3m_writeinstrument(
const struct INSTRUMENT* instrument,
FILE* f
) {
fputc(instrument->sampled, f);
fwrite(instrument->filename, 1, 13, f);
fput16lsb(0, f); // sample pointer - zero by default
fput32lsb(instrument->samplelength, f);
fput32lsb(instrument->loopstart, f);
fput32lsb(instrument->loopend, f);
fputc(instrument->defaultvol, f);
fputc(0, f);
fputc(0, f);
if(
instrument->loopstart != 0 ||
instrument->loopend != 0
) {
fputc(1, f);
} else {
fputc(0, f);
}
fput32lsb(instrument->c4spd, f);
//
// Next 12 bytes are reserved
//
fput32lsb(0, f);
fput32lsb(0, f);
fput32lsb(0, f);
fwrite(instrument->name, 1, 28, f);
fputc('S', f);
fputc('C', f);
fputc('R', f);
fputc('S', f);
}
////////////////////////////////////////////////////////////////////////////////
static uint8_t s3morderlist[256];
int main(int argc, char** argv) {
int returncode = 0;
FILE* amffile = NULL;
FILE* s3mfile = NULL;
const char* amffilename = "";
const char* s3mfilename = "";
uint16_t* ordertable = NULL;
uint16_t* tracktable = NULL;
struct INSTRUMENT* instrument = NULL;
uint16_t* s3mpatterntable = NULL;
uint8_t s3mpatterns;
struct TRACK** amftrack = NULL;
size_t amftracknum = 0;
char amfheader[4];
struct MODULE module;
off_t fpos_tracktable;
off_t fpos_instrument;
off_t fpos_samples;
off_t s3minstrumentstart;
off_t s3mpatternpointers;
uint32_t i, j, k;
normalize_argv0(argv[0]);
if(argc != 3) {
banner();
printf(
"Usage: %s inputfile.amf outputfile.s3m\n",
argv[0]
);
goto error;
}
amffilename = argv[1];
amffile = fopen(amffilename, "rb");
if(!amffile) { goto error_amffile; }
amfheader[0] = fgetc(amffile);
amfheader[1] = fgetc(amffile);
amfheader[2] = fgetc(amffile);
amfheader[3] = 0;
if(strcmp(amfheader, "AMF")) {
printf("'%s' is not an AMF file\n",amffilename);
goto conversionfailed;
}
if(fgetc(amffile) != 0xE) {
printf("'%s' - unrecognized AMF version\n",amffilename);
goto conversionfailed;
}
//
// Ensure the S3M file doesn't already exist
//
s3mfilename = argv[2];
s3mfile = fopen(s3mfilename, "rb");
if(s3mfile != NULL) {
printf("%s already exists; refusing to overwrite\n", s3mfilename);
goto conversionfailed;
}
for(i = 0; i < 32; i++) {
module.title[i] = fgetc(amffile);
}
module.title[i] = 0;
module.insnum = fgetc (amffile);
module.ordnum = fgetc (amffile);
module.tracknum = fget16lsb(amffile);
module.channels = fgetc (amffile);
for(i = 0; i < 32; i++) {
module.panposition[i] = fgetc(amffile);
}
module.tempo = fgetc (amffile);
module.speed = fgetc (amffile);
if(module.insnum == 0) {
printf("Module apparently has zero instruments\n");
goto conversionfailed;
}
if(module.ordnum == 0) {
printf("Module apparently has zero orders\n");
goto conversionfailed;
}
if(module.tracknum == 0) {
printf("Module apparently has zero tracks\n");
goto conversionfailed;
}
if(module.channels == 0) {
printf("Module apparently has zero channels\n");
goto conversionfailed;
}
if(module.channels > 32) {
printf("Module reports too many channels (%u); max is 32\n", module.channels);
goto conversionfailed;
}
//
// Print out general information
//
printf(
"Title..........%s\n"
"Channels.......%lu\n"
"Orders.........%lu\n"
"Track entries..%lu\n"
"Instruments....%lu\n"
"Tempo..........%lu bpm\n"
"Speed..........%lu\n\n",
module.title,
(unsigned long)module.channels,
(unsigned long)module.ordnum,
(unsigned long)module.tracknum,
(unsigned long)module.insnum,
(unsigned long)module.tempo,
(unsigned long)module.speed
);
//
// Allocate memory for all kinds of things, except AMF tracks
//
ordertable = malloc(sizeof(*ordertable) * module.channels * module.ordnum);
if(!ordertable) { printf("Out of memory\n"); goto conversionfailed; }
if(module.tracknum > (((size_t)(-1)) / sizeof(*tracktable))) {
printf("Too many tracks (%lu)\n", (unsigned long)module.tracknum);
goto conversionfailed;
}
tracktable = malloc(sizeof(*tracktable) * module.tracknum);
if(!tracktable) { printf("Out of memory\n"); goto conversionfailed; }
instrument = malloc(sizeof(*instrument) * module.insnum);
if(!instrument) { printf("Out of memory\n"); goto conversionfailed; }
//
// Determine the number of real tracks present
//
printf("Reading and decoding AMF...\n");
fpos_instrument = (off_t)0x4B + ((((off_t)module.channels + 1) * (off_t)module.ordnum) * 2);
fpos_tracktable = (off_t)fpos_instrument + (off_t)65 * (off_t)module.insnum;
fseeko(amffile, fpos_tracktable, SEEK_SET);
for(i = 0; i < module.tracknum; i++) {
tracktable[i] = fget16lsb(amffile);
if(tracktable[i] > amftracknum) {
amftracknum = tracktable[i];
}
// make zero-based
if(tracktable[i] > 0) { tracktable[i]--; }
}
//
// Allocate space for real tracks
//
if(amftracknum > (((size_t)(-1)) / sizeof(*amftrack))) {
printf("Too many amftracks (%lu)\n", (unsigned long)amftracknum);
goto conversionfailed;
}
amftrack = malloc(sizeof(*amftrack) * amftracknum);
if(!amftrack) { printf("Out of memory\n"); goto conversionfailed; }
for(i = 0; i < amftracknum; i++) { amftrack[i] = NULL; }
for(i = 0; i < amftracknum; i++) {
amftrack[i] = malloc(sizeof(*amftrack[i]));
if(!amftrack[i]) { printf("Out of memory\n"); goto conversionfailed; }
}
//
// Decode the AMF tracks
//
for(i = 0; i < amftracknum; i++) {
if(amf_decodetrack(amffile, amftrack[i], module.insnum)) {
goto conversionfailed;
}
}
//
// Save this place, this is where the samples are stored
//
fpos_samples = ftello(amffile);
//
// Now decode the orderlist, replacing track tags with real track numbers
//
fseeko(amffile, 0x4B, SEEK_SET);
for(i = 0; i < module.ordnum; i++) {
fget16lsb(amffile);
for(j = 0; j < module.channels; j++) {
uint16_t x = fget16lsb(amffile);
ordertable[i*module.channels+j] = tracktable[x ? x-1 : 0];
}
}
//
// Now decode the instrument headers
//
for(i = 0; i < module.insnum; i++) {
amf_decodeinstrument(amffile, instrument + i);
}
printf("Processing patterns...");
//
// Rearrange the patterns in a more S3M-friendly way
//
s3mpatterntable = malloc(sizeof(*s3mpatterntable) * module.ordnum * module.channels);
if(!s3mpatterntable) { printf("Out of memory\n"); goto conversionfailed; }
//
// Start numbering S3M patterns with 0
//
s3mpatterns = 0;
//
// Go through the entire AMF orderlist
//
for(i = 0; i < module.ordnum; i++) {
//
// Is there already a S3M pattern with this track configuration?
//
for(j = 0; j < s3mpatterns; j++) {
if(!memcmp(
s3mpatterntable + j * module.channels,
ordertable + i * module.channels,
sizeof(*s3mpatterntable) * module.channels
)) {
break;
}
}
s3morderlist[i] = (uint8_t)j;
if(j == s3mpatterns) {
// We need to create a new pattern
memmove(
s3mpatterntable + j * module.channels,
ordertable + i * module.channels,
sizeof(*s3mpatterntable) * module.channels
);
if(s3mpatterns >= 0xFF) {
printf("Too many patterns!\n");
goto conversionfailed;
}
s3mpatterns++;
}
}
printf(" (%u patterns used)\n", s3mpatterns);
//
// Now s3mpatterns holds the number of S3M patterns required.
// (plus, we know how to set up each pattern now)
//
//
// Try creating the S3M file
//
s3mfile = fopen(s3mfilename, "wb");
if(!s3mfile) { goto error_s3mfile; }
//
// Begin writing it
//
printf("Writing S3M header information...\n");
fwrite(module.title, 1, 28, s3mfile);
fput32lsb(0x101A, s3mfile);
//
// OrdNum has to be even in the S3M file, so adjust it
//
fput16lsb((module.ordnum + 1) & (~1), s3mfile);
fput16lsb(module.insnum, s3mfile);
fput16lsb(s3mpatterns, s3mfile);
fput16lsb(64, s3mfile); // flags
fput16lsb(0x1301, s3mfile); // created with Scream Tracker 3.01
fput16lsb(2, s3mfile); // unsigned samples
fputc('S', s3mfile);
fputc('C', s3mfile);
fputc('R', s3mfile);
fputc('M', s3mfile);
fputc(0x40, s3mfile); // global volume
fputc(module.speed, s3mfile); // initial speed
fputc(module.tempo, s3mfile); // initial tempo
fputc(0xB0, s3mfile); // master volume
fputc(16, s3mfile); // ultraclick removal level=8
fputc(0, s3mfile); // don't bother with pan positions
//
// next 10 bytes are reserved
//
fputc(0, s3mfile);fputc(0, s3mfile);fputc(0, s3mfile);fputc(0, s3mfile);
fputc(0, s3mfile);fputc(0, s3mfile);fputc(0, s3mfile);fputc(0, s3mfile);
fputc(0, s3mfile);fputc(0, s3mfile);
//
// Now set up the default LRLR... panning
//
for(i = 0; i < module.channels; i++) {
fputc(((i & 1) << 3) | (i >> 1), s3mfile);
}
for(i = module.channels; i < 32; i++) {
fputc(0xFF, s3mfile);
}
//
// Write out the orderlist
//
for(i = 0; i < module.ordnum;i++) {
fputc(s3morderlist[i], s3mfile);
}
//
// Adjust for that even-ordnum thing
//
if(module.ordnum & 1) {
fputc(0xFF, s3mfile);
module.ordnum++;
}
//
// Precompute and write out where all the instrument headers are going to be
//
s3minstrumentstart = (
((0x60 + module.ordnum + 2 * module.insnum + 2 * s3mpatterns) + 0xF) & (~0xF)
);
for(i = 0; i < module.insnum; i++) {
fput16lsb((uint16_t)((s3minstrumentstart + 80 * i) >> 4), s3mfile);
}
//
// Zero out the pattern parapointers for now
//
s3mpatternpointers = ftello(s3mfile);
for(i = 0; i < s3mpatterns; i++) {
fput16lsb(0, s3mfile);
}
//
// Wait until the boundary is an even paragraph
//
alignpara(s3mfile);
//
// Write out all instrument headers (making up sample locations)
//
for(i = 0; i < module.insnum;i++) {
s3m_writeinstrument(instrument + i, s3mfile);
}
//
// Squeeze some extra bytes out of each track
//
for(i = 0; i < amftracknum; i++) {
struct PLACE* place = amftrack[i]->place;
for(j = 0; j < 64; j++) {
if(
place[j].note != -1 &&
place[j].instrument != -1 &&
place[j].volume == instrument[place[j].instrument].defaultvol
) {
place[j].volume = -1;
}
}
}
//
// Now encode and write patterns
//
printf("Writing patterns...\n");
for(i = 0; i < s3mpatterns; i++) {
off_t pattern_start;
off_t pattern_end;
//
// Align to the next paragraph offset
//
alignpara(s3mfile);
//
// Obtain the pattern pointer
//
pattern_start = ftello(s3mfile);
if(pattern_start > S3MFILESIZELIMIT) {
printf("S3M file is too large!\n");
goto conversionfailed;
}
//
// Go back and write the pattern parapointer
//
fseeko(s3mfile, s3mpatternpointers + 2 * i, SEEK_SET);
fput16lsb((uint16_t)(pattern_start >> 4), s3mfile);
fseeko(s3mfile, pattern_start, SEEK_SET);
// Dummy size - fill it in later
fput16lsb(0, s3mfile);
for(j = 0; j < 64; j++) {
for(k = 0; k < module.channels; k++) {
struct PLACE* thisplace = amftrack[
s3mpatterntable[module.channels * i + k]
]->place + j;
uint8_t s3mbytewhat = 0;
if(thisplace->note != -1) { s3mbytewhat |= 0x20; }
if(thisplace->volume != -1) { s3mbytewhat |= 0x40; }
if(thisplace->effect != -1) { s3mbytewhat |= 0x80; }
if(s3mbytewhat != 0) {
s3mbytewhat |= k;
fputc(s3mbytewhat, s3mfile);
if((s3mbytewhat & 0x20) != 0) {
if(thisplace->octave > 0) {
fputc(((thisplace->note)|
(((thisplace->octave)-1)<<4)), s3mfile);
fputc(thisplace->instrument+1, s3mfile);
} else { // note cut
fputc(254, s3mfile);
fputc(0, s3mfile);
}
}
if((s3mbytewhat & 0x40) != 0) {
fputc(thisplace->volume , s3mfile);
}
if((s3mbytewhat & 0x80) != 0) {
fputc(thisplace->effect , s3mfile);
fputc(thisplace->parameter, s3mfile);
}
}
}
fputc(0, s3mfile);
}
//
// Mark end of pattern
//
pattern_end = ftello(s3mfile);
if((pattern_end - pattern_start) > S3MPATTERNSIZELIMIT) {
printf("S3M pattern is too large!\n");
goto conversionfailed;
}
//
// Go back and write the pattern size
//
fseeko(s3mfile, pattern_start, SEEK_SET);
fput16lsb((uint16_t)(pattern_end - pattern_start), s3mfile);
fseeko(s3mfile, pattern_end, SEEK_SET);
}
//
// Now write out the samples
//
printf("Writing samples...\n");
fseeko(amffile, fpos_samples, SEEK_SET);
for(i = 0; i < module.insnum; i++) {
if(instrument[i].sampled == 1) {
off_t sample_start;
//
// Align to the next paragraph offset
//
alignpara(s3mfile);
//
// Obtain the sample pointer
//
sample_start = ftello(s3mfile);
if(sample_start > S3MFILESIZELIMIT) {
printf("S3M file is too large!\n");
goto conversionfailed;
}
//
// Go back and write the sample pointer in the instrument
//
fseeko(s3mfile, s3minstrumentstart + 80 * i + 14, SEEK_SET);
fput16lsb((uint16_t)(sample_start >> 4), s3mfile);
fseeko(s3mfile, sample_start, SEEK_SET);
//
// Copy the actual sample
//
for(j = 0; j < instrument[i].samplelength; j++) {
fputc(fgetc(amffile), s3mfile);
}
}
}
printf("Done!\n");
//
// Success (hopefully)
//
goto done;
conversionfailed:
printf("Conversion failed\n");
goto error;
error_amffile: printfileerror(amffile, amffilename); goto error;
error_s3mfile: printfileerror(s3mfile, s3mfilename); goto error;
error:
returncode = 1;
done:
//
// Free up all allocated memory
//
if(ordertable != NULL) { free(ordertable ); }
if(tracktable != NULL) { free(tracktable ); }
if(instrument != NULL) { free(instrument ); }
if(s3mpatterntable != NULL) { free(s3mpatterntable); }
if(amftrack != NULL) {
for(i = 0; i < amftracknum; i++) {
if(amftrack[i] != NULL) { free(amftrack[i]); }
}
free(amftrack);
}
//
// Close both files
//
if(amffile != NULL) { fclose(amffile); }
if(s3mfile != NULL) { fclose(s3mfile); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/subfile.c 0000644 0001750 0001750 00000006762 11731303760 016136 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "subfile - Extract a portion of a file"
#define COPYR "Copyright (C) 2010 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
static uint8_t buf[0x8000LU];
int main(int argc, char **argv) {
int returncode = 0;
FILE *inf = NULL;
FILE *outf = NULL;
off_t offset = 0;
off_t length = 0;
off_t in_length;
const char *infilename = NULL;
const char *outfilename = NULL;
normalize_argv0(argv[0]);
if(argc != 5) {
banner();
printf("Usage: %s infile offset length outfile\n", argv[0]);
goto error;
}
infilename = argv[1];
offset = strtoofft(argv[2], NULL, 0);
length = strtoofft(argv[3], NULL, 0);
outfilename = argv[4];
if(offset < 0) { printf("Offset must not be negative\n"); goto error; }
if(length < 0) { printf("Length must not be negative\n"); goto error; }
inf = fopen(infilename, "rb");
if(!inf) { goto infileerror; }
clearerr(inf);
//
// Verify offset and length against the size of the input file
//
if(fseeko(inf, 0, SEEK_END) != 0) { goto infileerror; }
in_length = ftello(inf);
if(in_length < 0) { goto infileerror; }
if(offset > in_length) {
printf("Offset is past the end of %s\n", infilename);
goto error;
}
if(length > in_length) {
printf("Length is past the end of %s\n", infilename);
goto error;
}
if(offset > (in_length - length)) {
printf("Offset+length is past the end of %s\n", infilename);
goto error;
}
//
// Seek to the desired offset
//
if(fseeko(inf, offset, SEEK_SET) != 0) { goto infileerror; }
//
// Ensure the output file doesn't already exist
//
outf = fopen(outfilename, "rb");
if(outf) {
printf("Error: %s already exists; cannot overwrite\n", outfilename);
goto error;
}
outf = fopen(outfilename, "wb");
if(!outf) { goto outfileerror; }
clearerr(outf);
while(length > 0) {
size_t r, w;
off_t l = length;
if(l > ((off_t)sizeof(buf))) { l = sizeof(buf); }
r = fread(buf, 1, (size_t)l, inf);
if(r != ((size_t)l)) { goto infileerror; }
w = fwrite(buf, 1, r, outf);
if(w != r) { goto outfileerror; }
length -= r;
}
goto end;
infileerror: printfileerror(inf, infilename); goto error;
outfileerror: printfileerror(outf, outfilename); goto error;
error:
returncode = 1;
end:
if(inf != NULL) { fclose(inf ); }
if(outf != NULL) { fclose(outf); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/uips.c 0000644 0001750 0001750 00000034564 11731303760 015466 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "uips - Universal IPS patch create/apply utility"
#define COPYR "Copyright (C) 1999,2010 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
static const off_t IPS_EOF = 0x00454F46L;
static const off_t IPS_LIMIT = 0x01000000L;
//
// Wrapper for fopen that does various things
//
static FILE *my_fopen(const char *filename, const char *mode, off_t *size) {
FILE *f = fopen(filename, mode);
if(!f) { goto error; }
if(size) {
if(fseeko(f, 0, SEEK_END) == -1) { goto error; }
*size = ftello(f);
if(*size < 0) { goto error; }
if(fseeko(f, 0, SEEK_SET) == -1) { goto error; }
}
return f;
error:
printfileerror(f, filename);
if(f) { fclose(f); }
return NULL;
}
//
// Read a number from a file, MSB first
// Returns -1 on end of file
//
static int32_t readvalue(FILE *f, size_t nbytes) {
int32_t v = 0;
while(nbytes--) {
int c = fgetc(f);
if(c == EOF) {
return -1;
}
v = (v << 8) | (c & 0xFF);
}
return v;
}
//
// Write a number to a file, MSB first
//
static void writevalue(int32_t value, FILE *f, size_t nbytes) {
size_t i = nbytes << 3;
while(nbytes--) {
i -= 8;
fputc(value >> i, f);
}
}
//
// Search for the next difference between the target file and a number of
// source files
//
static off_t get_next_difference(
off_t ofs,
FILE **source_file,
const off_t *source_size,
size_t source_nfiles,
FILE *target_file,
off_t target_size
) {
size_t i;
if(ofs >= target_size) {
return target_size;
}
fseeko(target_file, ofs, SEEK_SET);
for(i = 0; i < source_nfiles; i++) {
if(ofs >= source_size[i]) {
return ofs;
}
}
for(i = 0; i < source_nfiles; i++) {
fseeko(source_file[i], ofs, SEEK_SET);
}
for(;;) {
int tc = fgetc(target_file);
if(tc == EOF) {
return target_size;
}
for(i = 0; i < source_nfiles; i++) {
if(fgetc(source_file[i]) != tc) {
return ofs;
}
}
ofs++;
}
}
//
// Search for the end of a difference block
//
static off_t get_difference_end(
off_t ofs,
off_t similar_limit,
FILE **source_file,
const off_t *source_size,
size_t source_nfiles,
FILE *target_file,
off_t target_size
) {
size_t i;
off_t similar_rl = 0;
if(ofs >= target_size) {
return target_size;
}
fseeko(target_file, ofs, SEEK_SET);
for(i = 0; i < source_nfiles; i++) {
if(ofs >= source_size[i]) {
return target_size;
}
}
for(i = 0; i < source_nfiles; i++) {
fseeko(source_file[i], ofs, SEEK_SET);
}
for(;;) {
char is_different = 0;
int tc = fgetc(target_file);
if(tc == EOF) {
return target_size - similar_rl;
}
for(i = 0; i < source_nfiles; i++) {
int fc = fgetc(source_file[i]);
if((fc == EOF) || (fc != tc)) {
is_different = 1;
}
}
ofs++;
if(is_different) {
similar_rl = 0;
} else {
similar_rl++;
if(similar_rl == similar_limit) {
break;
}
}
}
return ofs - similar_rl;
}
//
// Encode a difference block into a patch file
//
static void encode_patch_block(
FILE* patch_file,
FILE* target_file,
off_t ofs,
off_t ofs_end
) {
while(ofs < ofs_end) {
off_t ofs_block_end;
off_t rl;
int c;
//
// Avoid accidental "EOF" marker
//
if(ofs == IPS_EOF) {
ofs--;
}
//
// Write the offset to the patch file
//
writevalue(ofs, patch_file, 3);
fseeko(target_file, ofs, SEEK_SET);
//
// If there is a beginning run of at least 9 bytes, use it
//
c = fgetc(target_file);
rl = 1;
while(
(fgetc(target_file) == c) &&
(rl < 0xFFFF) &&
((ofs + rl) < ofs_end)
) {
rl++;
}
//
// Encode a run, if the run was long enough
//
if(rl >= 9) {
writevalue( 0, patch_file, 2);
writevalue(rl, patch_file, 2);
writevalue( c, patch_file, 1);
ofs += rl;
continue;
}
//
// Search for the end of the block.
// The block ends if there's an internal run of at least 14, or an ending
// run of at least 9, or the block length == 0xFFFF, or the block reaches
// ofs_end.
//
fseeko(target_file, ofs, SEEK_SET);
ofs_block_end = ofs;
c = -1;
while(
(ofs_block_end < ofs_end) &&
((ofs_block_end - ofs) < 0xFFFF)
) {
int c2 = fgetc(target_file);
ofs_block_end++;
if(c == c2) {
rl++;
if(rl == 14) {
ofs_block_end -= 14;
break;
}
} else {
rl = 1;
c = c2;
}
}
//
// Look for a sufficiently long ending run
//
if((ofs_block_end == ofs_end) && (rl >= 9)) {
ofs_block_end -= rl;
if(ofs_block_end == IPS_EOF) {
ofs_block_end++;
}
}
//
// Encode a regular patch block
//
writevalue(ofs_block_end - ofs, patch_file, 2);
fseeko(target_file, ofs, SEEK_SET);
while(ofs < ofs_block_end) {
fputc(fgetc(target_file), patch_file);
ofs++;
}
}
}
//
// Create a patch given a list of source filenames and a target filename.
// Returns 0 on success.
//
static int create_patch(
const char *patch_filename,
size_t source_nfiles,
const char **source_filename,
const char *target_filename
) {
int returncode = 0;
FILE *patch_file = NULL;
FILE **source_file = NULL;
off_t *source_size = NULL;
FILE *target_file = NULL;
off_t target_size;
off_t ofs;
size_t i;
char will_truncate = 0;
//
// Allocate memory for list of source file streams and sizes
//
if(
source_nfiles > (((size_t)(-1)) / sizeof(*source_file)) ||
source_nfiles > (((size_t)(-1)) / sizeof(*source_size)) ||
((source_file = malloc(sizeof(*source_file) * source_nfiles)) == NULL) ||
((source_size = malloc(sizeof(*source_size) * source_nfiles)) == NULL)
) {
printf("Out of memory\n");
goto err;
}
for(i = 0; i < source_nfiles; i++) { source_file[i] = NULL; }
//
// Open target file
//
target_file = my_fopen(target_filename, "rb", &target_size);
if(!target_file) { goto err; }
//
// Open source files
//
for(i = 0; i < source_nfiles; i++) {
source_file[i] = my_fopen(source_filename[i], "rb", source_size + i);
if(!source_file[i]) { goto err; }
if(source_size[i] > target_size) {
will_truncate = 1;
}
}
//
// Create patch file
//
patch_file = my_fopen(patch_filename, "wb", NULL);
if(!patch_file) { goto err; }
printf("Creating %s...\n", patch_filename);
//
// Write "PATCH" signature
//
if(fwrite("PATCH", 1, 5, patch_file) != 5) { goto err_patch_file; }
//
// Main patch creation loop
//
ofs = 0;
for(;;) {
off_t ofs_end;
//
// Search for next difference
//
ofs = get_next_difference(
ofs,
source_file,
source_size,
source_nfiles,
target_file,
target_size
);
if(ofs == target_size) {
break;
}
if(ofs >= IPS_LIMIT) {
printf("Warning: Differences beyond 16MiB were ignored\n");
break;
}
//
// Determine the length of the difference block
//
ofs_end = get_difference_end(
ofs,
5,
source_file,
source_size,
source_nfiles,
target_file,
target_size
);
//
// Encode the difference block into the patch file
//
encode_patch_block(patch_file, target_file, ofs, ofs_end);
ofs = ofs_end;
}
//
// Write EOF marker
//
writevalue(IPS_EOF, patch_file, 3);
if(will_truncate) {
if(target_size >= IPS_LIMIT) {
printf("Warning: Can't truncate beyond 16MiB\n");
} else {
writevalue(target_size, patch_file, 3);
}
}
//
// Finished
//
printf("Done\n");
goto no_err;
err_patch_file: printfileerror(patch_file, patch_filename); goto err;
err:
returncode = 1;
no_err:
if(patch_file) { fclose(patch_file); }
for(i = 0; i < source_nfiles; i++) {
if(source_file[i]) { fclose(source_file[i]); }
}
if(target_file) { fclose(target_file); }
if(source_file) { free(source_file); }
if(source_size) { free(source_size); }
return returncode;
}
//
// Apply a patch to a given target.
// Returns 0 on success.
//
static int apply_patch(
const char* patch_filename,
const char* target_filename
) {
int returncode = 0;
FILE *patch_file = NULL;
FILE *target_file = NULL;
off_t target_size;
off_t ofs;
//
// Open patch file
//
patch_file = my_fopen(patch_filename, "rb", NULL);
if(!patch_file) { goto err; }
//
// Verify first five characters
//
if(
(fgetc(patch_file) != 'P') ||
(fgetc(patch_file) != 'A') ||
(fgetc(patch_file) != 'T') ||
(fgetc(patch_file) != 'C') ||
(fgetc(patch_file) != 'H')
) {
printf("%s: Invalid patch file format\n", patch_filename);
goto err;
}
//
// Open target file
//
target_file = my_fopen(target_filename, "r+b", &target_size);
if(!target_file) { goto err; }
printf("Applying %s...\n", patch_filename);
//
// Main patch application loop
//
for(;;) {
off_t ofs, len;
off_t rlen = 0;
int rchar = 0;
//
// Read the beginning of a patch record
//
ofs = readvalue(patch_file, 3);
if(ofs == -1) { goto err_eof; }
if(ofs == IPS_EOF) {
break;
}
len = readvalue(patch_file, 2);
if(len == -1) { goto err_eof; }
if(!len) {
rlen = readvalue(patch_file, 2);
if(rlen == -1) { goto err_eof; }
rchar = fgetc(patch_file);
if(rchar == EOF) { goto err_eof; }
}
//
// Seek to the appropriate position in the target file
//
if(ofs <= target_size) {
fseeko(target_file, ofs, SEEK_SET);
} else {
fseeko(target_file, 0, SEEK_END);
while(target_size < ofs) {
fputc(0, target_file);
target_size++;
}
}
//
// Apply patch block
//
if(len) {
ofs += len;
if(ofs > target_size) {
target_size = ofs;
}
while(len--) {
rchar = fgetc(patch_file);
if(rchar == EOF) { goto err_eof; }
fputc(rchar, target_file);
}
} else {
ofs += rlen;
if(ofs > target_size) {
target_size = ofs;
}
while(rlen--) {
fputc(rchar, target_file);
}
}
}
//
// Perform truncation if necessary
//
fclose(target_file);
target_file = NULL;
ofs = readvalue(patch_file, 3);
if(ofs != -1 && ofs < target_size) {
if(truncate(target_filename, ofs) != 0) {
printf("Warning: Truncate failed\n");
}
}
//
// Finished
//
printf("Done\n");
goto no_err;
err_eof:
printf(
"Error: %s: Unexpected end-of-file; patch incomplete\n",
patch_filename
);
err:
returncode = 1;
no_err:
if(target_file) { fclose(target_file); }
if( patch_file) { fclose( patch_file); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
int main(
int argc,
char **argv
) {
int returncode = 1;
char cmd;
normalize_argv0(argv[0]);
if(argc < 2) {
banner();
goto usage;
}
cmd = argv[1][0];
if(cmd && argv[1][1]) { cmd = 0; }
switch(cmd) {
case 'c':
case 'C':
if(argc < 5) {
goto usage;
}
returncode = create_patch(
argv[2],
argc - 4,
(const char**)(argv + 3),
argv[argc - 1]
);
break;
case 'a':
case 'A':
if(argc != 4) {
goto usage;
}
returncode = apply_patch(argv[2], argv[3]);
break;
default:
printf("Unknown command: %s\n", argv[1]);
goto usage;
}
goto done;
usage:
printf(
"Usage:\n"
"To create an IPS patch:\n"
" %s c patch_file source_file(s) target_file\n"
"To apply an IPS patch:\n"
" %s a patch_file target_file\n",
argv[0], argv[0]
);
returncode = 1;
done:
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/usfv.c 0000644 0001750 0001750 00000024422 11731303760 015461 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "usfv - Universal SFV create/verify utility"
#define COPYR "Copyright (C) 2003,2010 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
enum { BIG_FILENAME_SIZE = 30000 };
////////////////////////////////////////////////////////////////////////////////
static int usfv_isspace(int c) {
return (
(c == 32) ||
((c >= 9) && (c <= 13))
);
}
////////////////////////////////////////////////////////////////////////////////
static int getfilecrc(
const char *filename,
uint32_t *crc_out
) {
static uint32_t crctable[256];
static char initialized = 0;
uint32_t crc = 0;
FILE *f;
if(!initialized) {
uint32_t i, j, k;
for(i = 0; i < 256; i++) {
j = i ^ 0xFF;
for (k = 0; k < 8; k++) {
j = (j & 1) ? 0xEDB88320 ^ (j >> 1) : j >> 1;
}
crctable[i] = j ^ 0xFF000000;
}
initialized = 1;
}
f = fopen(filename, "rb");
if(!f) { return -1; }
if(crc_out) {
for(;;) {
int c = fgetc(f);
if(c == EOF) { break; }
crc = (crc >> 8) ^ crctable[(crc ^ c) & 0xFF];
}
*crc_out = crc;
}
fclose(f);
return 0;
}
////////////////////////////////////////////////////////////////////////////////
//
// Convert a time_t to a struct tm, safely
//
static struct tm my_localtime(time_t t) {
struct tm *p_tm = localtime(&t);
if(!p_tm) { t = 0; p_tm = localtime(&t); }
if(!p_tm) {
struct tm fallback;
memset(&fallback, 0, sizeof(fallback));
return fallback;
}
return (*p_tm);
}
////////////////////////////////////////////////////////////////////////////////
//
// Returns the number of errors
//
static off_t sfvcreate(
char *sfvfilename,
char **filename,
size_t n
) {
off_t nerrors = 0;
FILE *sfvfile = NULL;
size_t i = 0;
off_t nfiles_done = 0;
sfvfile = fopen(sfvfilename, "rb");
if(sfvfile) {
printf("Error: %s already exists; will not overwrite\n", sfvfilename);
goto error;
}
sfvfile = fopen(sfvfilename, "wb");
if(!sfvfile) { goto error_sfvfile; }
printf("Creating SFV file %s\n", sfvfilename);
{ char buf[24];
size_t r;
struct tm my_tm = my_localtime(time(NULL));
memset(buf, 0, sizeof(buf));
r = strftime(buf, sizeof(buf)-1, "%Y-%m-%d at %H:%M.%S", &my_tm);
if(r < 1) { strncpy(buf, "9999-99-99 at 99:99.99", sizeof(buf)-1); }
fprintf(sfvfile,
"; Generated by WIN-SFV32 v1.1a "
"(usfv) "
"on %s", buf
);
}
//
// Note: SFV newlines have to be in CRLF format, regardless of platform
//
fputc('\r', sfvfile);
fputc('\n', sfvfile);
fputc(';' , sfvfile);
fputc('\r', sfvfile);
fputc('\n', sfvfile);
//
// Write comments indicating file lengths/times
//
for(i = 0; i < n; i++) {
struct stat mystat;
int r;
memset(&mystat, 0, sizeof(mystat));
r = stat(filename[i], &mystat);
if(r >= 0) {
size_t s;
struct tm my_tm;
char buf[24];
if(S_ISDIR(mystat.st_mode)) {
// Skip directories
filename[i] = NULL;
continue;
}
my_tm = my_localtime(mystat.st_mtime);
memset(buf, 0, sizeof(buf));
s = strftime(buf, sizeof(buf)-1, "%H:%M.%S %Y-%m-%d", &my_tm);
if(s < 1) { strncpy(buf, " ", sizeof(buf)-1); }
fprintf(sfvfile, ";%13lu %s %s", ((unsigned long)(mystat.st_size)), buf, filename[i]);
fputc('\r', sfvfile);
fputc('\n', sfvfile);
}
}
//
// Calculate CRCs
//
for(i = 0; i < n; i++) {
uint32_t crc = 0;
int r;
if(!filename[i]) { continue; }
printf("%-22s ", filename[i]);
fflush(stdout);
r = getfilecrc(filename[i], &crc);
if(r) {
printf("%s\n", strerror(errno));
nerrors++;
continue;
}
printf("%02X%02X%02X%02X\n",
(int)((crc >> 24) & 0xFF),
(int)((crc >> 16) & 0xFF),
(int)((crc >> 8) & 0xFF),
(int)((crc >> 0) & 0xFF)
);
fprintf(sfvfile,
"%s %02X%02X%02X%02X",
filename[i],
(int)((crc >> 24) & 0xFF),
(int)((crc >> 16) & 0xFF),
(int)((crc >> 8) & 0xFF),
(int)((crc >> 0) & 0xFF)
);
fputc('\r', sfvfile);
fputc('\n', sfvfile);
nfiles_done++;
}
printf(
"%lu file%s processed\n"
"%lu error%s encountered\n",
(unsigned long)nfiles_done, nfiles_done == 1 ? "" : "s",
(unsigned long)nerrors , nerrors == 1 ? "" : "s"
);
goto done;
error_sfvfile:
printfileerror(sfvfile, sfvfilename);
goto error;
error:
nerrors = 1;
done:
if(sfvfile != NULL) { fclose(sfvfile); }
return nerrors;
}
////////////////////////////////////////////////////////////////////////////////
//
// Returns the number of errors
//
static off_t sfvverify(
char *sfvfilename
) {
off_t returncode = 0;
FILE *sfvfile = NULL;
char *filename = NULL;
int filename_size = 0;
size_t nfiles = 0;
size_t nfiles_ok = 0;
size_t nfiles_bad = 0;
size_t nfiles_err = 0;
sfvfile = fopen(sfvfilename, "rb");
if(!sfvfile) { goto error_sfvfile; }
printf("Verifying SFV file %s\n", sfvfilename);
for(;;) {
int c, i, filename_len;
const char *crcstr;
uint32_t crcnum, filecrcnum;
do { c = fgetc(sfvfile); } while(c != EOF && usfv_isspace(c));
if(c == EOF) { break; }
// Skip comments
if(c == ';') {
do { c = fgetc(sfvfile); } while(c != EOF && c != '\n');
if(c == EOF) { break; }
continue;
}
// Assume this is a filename
filename_len = 0;
for(;;) {
if((filename_len + 1) >= filename_size) {
if(filename_size > BIG_FILENAME_SIZE) {
fflush(stdout);
printf("Corrupt SFV file\n");
goto error;
}
filename_size += 100;
filename = realloc(filename, filename_size);
if(!filename) {
printf("Out of memory\n");
goto error;
}
}
filename[filename_len++] = c;
if(!c) { break; }
c = fgetc(sfvfile);
if(c == EOF || c == '\n') {
c = 0;
}
}
filename_len--;
while(filename_len && usfv_isspace(filename[filename_len - 1])) {
filename_len--;
}
filename[filename_len] = 0;
i = filename_len;
while(i && !usfv_isspace(filename[i - 1])) { i--; }
crcstr = filename + i;
while(i && usfv_isspace(filename[i - 1])) { i--; }
// No filename? just one thing on a line? ignore it
if(!i) { continue; }
filename[i] = 0;
crcnum = strtoul(crcstr, NULL, 16);
printf("%-22s ", filename);
fflush(stdout);
filecrcnum = 0;
i = getfilecrc(filename, &filecrcnum);
if(i) {
nfiles_err++;
printf("%s\n", strerror(errno));
continue;
}
nfiles++;
if(filecrcnum == crcnum) {
nfiles_ok++;
printf("ok\n");
} else {
nfiles_bad++;
printf("*** BAD *** (%02X%02X%02X%02X, should be %02X%02X%02X%02X)\n",
(int)((filecrcnum >> 24) & 0xFF),
(int)((filecrcnum >> 16) & 0xFF),
(int)((filecrcnum >> 8) & 0xFF),
(int)((filecrcnum >> 0) & 0xFF),
(int)(( crcnum >> 24) & 0xFF),
(int)(( crcnum >> 16) & 0xFF),
(int)(( crcnum >> 8) & 0xFF),
(int)(( crcnum >> 0) & 0xFF)
);
}
}
printf(
"%lu file%s checked (%lu ok, %lu bad)\n"
"%lu error%s encountered\n",
(unsigned long)nfiles , nfiles == 1 ? "" : "s",
(unsigned long)nfiles_ok ,
(unsigned long)nfiles_bad,
(unsigned long)nfiles_err, nfiles_err == 1 ? "" : "s"
);
returncode = nfiles_err + nfiles_bad;
goto done;
error_sfvfile:
printfileerror(sfvfile, sfvfilename);
goto error;
error:
returncode = 1;
done:
if(sfvfile != NULL) { fclose(sfvfile); }
if(filename != NULL) { free(filename); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
int main(
int argc,
char **argv
) {
normalize_argv0(argv[0]);
tzset();
if(
(argc < 3) ||
(argv[1][0] == 0) ||
(argv[1][1] != 0) ||
(argv[1][0] != 'c' && argv[1][0] != 'v') ||
(argv[1][0] == 'c' && argc == 3) ||
(argv[1][0] == 'v' && argc > 3)
) {
banner();
printf(
"Usage:\n"
"To create a SFV file: %s c sfvfile filenames\n"
"To verify a SFV file: %s v sfvfile\n", argv[0], argv[0]
);
return 1;
}
if(argv[1][0] == 'c') {
return sfvcreate(argv[2], argv + 3, argc - 3);
} else {
return sfvverify(argv[2]);
}
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/vb2rip.c 0000644 0001750 0001750 00000110445 11731303760 015703 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "vb2rip - VB2 sound format ripping utility"
#define COPYR "Copyright (C) 2001,2011 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
static const char* oom = "Error: Out of memory\n";
////////////////////////////////////////////////////////////////////////////////
struct vb2rip_options {
const char* fmt;
const char* outname;
size_t inputfilecount;
int8_t use_channels;
int8_t use_honor_endflag;
int8_t use_maxbytes;
int8_t use_samplerate;
int8_t use_offset;
int8_t use_interleave;
int8_t use_skip;
int8_t channels;
int8_t honor_endflag;
off_t maxbytes;
uint32_t samplerate;
off_t offset;
off_t interleave;
off_t skip;
};
////////////////////////////////////////////////////////////////////////////////
static uint32_t get32lsb(const uint8_t *data) {
return
(((uint32_t)(data[0])) ) |
(((uint32_t)(data[1])) << 8) |
(((uint32_t)(data[2])) << 16) |
(((uint32_t)(data[3])) << 24);
}
static void put32lsb(uint8_t *data, uint32_t value) {
data[0] = (uint8_t)(value );
data[1] = (uint8_t)(value >> 8);
data[2] = (uint8_t)(value >> 16);
data[3] = (uint8_t)(value >> 24);
}
////////////////////////////////////////////////////////////////////////////////
static FILE *wav_create(
const char* filename,
uint8_t channels,
uint32_t samplerate
) {
// .WAV file header
uint8_t wavhdr[0x2C] = {
0x52,0x49,0x46,0x46,0x00,0x00,0x00,0x00,0x57,0x41,0x56,0x45,0x66,0x6D,0x74,0x20,
0x10,0x00,0x00,0x00,0x01,0x00,0x02,0x00,0x44,0xAC,0x00,0x00,0x10,0xB1,0x02,0x00,
0x04,0x00,0x10,0x00,0x64,0x61,0x74,0x61,0x00,0x00,0x00,0x00
};
FILE *f = fopen(filename, "wb");
if(!f) { goto error; }
wavhdr[0x16] = channels;
put32lsb(wavhdr + 0x18, samplerate);
put32lsb(wavhdr + 0x1C, samplerate * channels * 2);
if(fwrite(wavhdr, 1, sizeof(wavhdr), f) != sizeof(wavhdr)) { goto error; }
return f;
error:
printfileerror(f, filename);
if(f) { fclose(f); }
return NULL;
}
////////////////////////////////////////////////////////////////////////////////
//
// Returns nonzero on error
//
static int wav_close(FILE *f) {
off_t tl = ftello(f);
uint8_t buf[4];
if(tl == -1) { goto error; }
fflush(f);
if(fseeko(f, 0x04, SEEK_SET) != 0) { goto error; }
put32lsb(buf, (uint32_t)(tl - 0x08));
if(fwrite(buf, 1, 4, f) != 4) { goto error; }
fflush(f);
if(fseeko(f, 0x28, SEEK_SET) != 0) { goto error; }
put32lsb(buf, (uint32_t)(tl - 0x2C));
if(fwrite(buf, 1, 4, f) != 4) { goto error; }
fflush(f);
if(fseeko(f, tl, SEEK_SET) != 0) { goto error; }
fflush(f);
fclose(f);
return 0;
error:
printfileerror(f, NULL);
fclose(f);
return 1;
}
////////////////////////////////////////////////////////////////////////////////
//
// Decode a line of samples
//
static void decodeline(
const uint8_t* src,
int16_t* outbuf,
int32_t* p1,
int32_t* p2
) {
static int32_t coef[5][2] = {
{ 0, 0},
{ 60, 0},
{115, -52},
{ 98, -55},
{122, -60}
};
int32_t c;
size_t i;
uint8_t fm = *src++;
uint32_t filter = (fm >> 4) & 0xF;
uint32_t magnitude = (fm ) & 0xF;
if(magnitude > 12 || filter > 4) {
magnitude = 12;
filter = 0;
}
src++;
for(i = 0; i < 14; i++) {
uint32_t d = *src++;
int32_t d1 = (d & 0x0F) << (12 + 16);
int32_t d2 = (d & 0xF0) << ( 8 + 16);
d1 >>= magnitude + 16;
d2 >>= magnitude + 16;
c = d1 +
((((*p1) * coef[filter][0]) +
((*p2) * coef[filter][1])) >> 6);
if(c < -32768) c = -32768;
if(c > 32767) c = 32767;
*outbuf++ = (int16_t)c;
(*p2) = (*p1);
(*p1) = c;
c = d2 +
((((*p1) * coef[filter][0]) +
((*p2) * coef[filter][1])) >> 6);
if(c < -32768) c = -32768;
if(c > 32767) c = 32767;
*outbuf++ = (int16_t)c;
(*p2) = (*p1);
(*p1) = c;
}
}
////////////////////////////////////////////////////////////////////////////////
static int cmpcase(const char* a, const char* b) {
for(;;) {
int ca = (*a++) & 0xFF;
int cb = (*b++) & 0xFF;
int la = tolower(ca) & 0xFF;
int lb = tolower(cb) & 0xFF;
if(la != lb) { return (la - lb); }
if(!la) { return 0; }
}
}
////////////////////////////////////////////////////////////////////////////////
//
// callback which should detect the beginning of a new block
//
typedef off_t (*blockdetect_t)(FILE* f, off_t ofs, off_t size);
////////////////////////////////////////////////////////////////////////////////
//
// returns the number of errors
//
static int rip(
FILE *inf,
struct vb2rip_options opts,
blockdetect_t blockdetect
) {
int returncode = 1;
char *outname = NULL;
uint8_t *block = NULL;
uint8_t *block_r = NULL;
FILE *outf = NULL;
off_t in_start;
off_t in_end;
off_t in_pos;
off_t out_indicator_pos;
size_t readsize;
int8_t endflag = 0;
int32_t p1[2] = {0, 0}; // per channel
int32_t p2[2] = {0, 0}; // per channel
in_pos = in_start = ftello(inf);
if(in_start == -1) { goto error_in; }
if(fseeko(inf, 0, SEEK_END) != 0) { goto error_in; }
in_end = ftello(inf);
if(in_end == -1) { goto error_in; }
if(fseeko(inf, in_start, SEEK_SET) != 0) { goto error_in; }
// use a default for the output filename if it doesn't exist
if(!opts.outname) { opts.outname = "out"; }
{ size_t outname_l = strlen(opts.outname);
outname = malloc(outname_l + 4 + 1);
if(!outname) { printf("%s", oom); goto error; }
strcpy(outname, opts.outname);
if(
(outname_l < 4) ||
cmpcase(outname + outname_l - 4, ".wav")
) {
strcat(outname, ".wav");
}
}
printf("writing %s: ", outname);
fflush(stdout);
// fill in and validate all parts of opts
// channel count
if(!opts.use_channels) { opts.channels = 1; }
if(opts.channels < 1 || opts.channels > 2) {
printf("invalid channel count (%d)", (int)opts.channels);
goto error;
}
// honor end flag
if(!opts.use_honor_endflag) { opts.honor_endflag = 1; }
// max bytes will be used/checked later
// sample rate
if(!opts.use_samplerate) { opts.samplerate = 44100; }
// offset
if(!opts.use_offset) { opts.offset = 0; }
// interleave size
// defaults to 16K for stereo, 16 bytes (the minimum) for mono
if(!opts.use_interleave) {
opts.interleave = (opts.channels == 2) ? 0x4000 : 0x10;
}
if((opts.interleave < 1) || ((opts.interleave) & 0xF)) {
printf("invalid interleave size (");
fprintdec(stdout, opts.interleave);
printf("); must be a positive multiple of 16");
goto error;
}
// skip
if(!opts.use_skip) { opts.skip = 0; }
// apply the starting offset if necessary
in_start += opts.offset;
in_pos = in_start;
// max bytes
if(opts.use_maxbytes) {
if(opts.maxbytes < (in_end - in_start)) {
in_end = in_start + opts.maxbytes;
}
}
//
// allocate input blocks
//
readsize = (size_t)(opts.interleave < 0x8000 ? opts.interleave : 0x8000);
block = malloc(readsize);
if(!block) { printf("%s", oom); goto error; }
if(opts.channels == 2) {
block_r = malloc(readsize);
if(!block_r) { printf("%s", oom); goto error; }
}
//
// now, open the output wav file
//
outf = wav_create(outname, opts.channels, opts.samplerate);
if(!outf) { goto error; }
out_indicator_pos = ftello(outf);
if(out_indicator_pos == -1) { goto error_out; }
endflag = 0;
for(in_pos = in_start;
in_pos < in_end &&
(in_pos + (opts.channels * opts.interleave)) <= in_end &&
!endflag;
) {
off_t b;
//
// See if there's a new first block here
//
if((in_pos != in_start) && (blockdetect)) {
off_t size = opts.channels * opts.interleave;
if(size > (in_end - in_pos)) {
size = in_end - in_pos;
}
if(blockdetect(inf, in_pos, size) != 0) { break; }
}
//
// Get through this block
//
for(b = 0; b < opts.interleave && !endflag; ) {
int16_t outbuf [28];
int16_t outbuf_r[28];
uint8_t outline[28 * 2 * 2];
size_t i, j;
size_t bpc =
(opts.interleave - b) < ((off_t)readsize) ?
(size_t)(opts.interleave - b) : readsize;
//
// Read left
//
if(fseeko(inf, in_pos + b, SEEK_SET) != 0) { goto error_in; }
clearerr(inf);
i = fread(block, 1, bpc, inf);
if(i != bpc) {
if(ferror(inf)) { goto error_in; }
break;
}
//
// Read right
//
if(opts.channels == 2) {
if(fseeko(inf, in_pos + opts.interleave + b, SEEK_SET) != 0) {
goto error_in;
}
clearerr(inf);
i = fread(block_r, 1, bpc, inf);
if(i != bpc) {
if(ferror(inf)) { goto error_in; }
break;
}
}
//
// If we're honoring the end flag, look for it, and cut this block
// short if it's there
//
if(opts.honor_endflag) {
for(i = 0; i < bpc; i += 0x10) {
if(
(block[i + 1] & 1) ||
(block_r && (block_r[i + 1] & 1))
) {
endflag = 1;
bpc = i + 0x10;
break;
}
}
}
if(opts.channels == 1) {
for(i = 0; i < bpc; i += 0x10) {
decodeline(block + i, outbuf, p1, p2);
for(j = 0; j < 28; j++) {
outline[2 * j + 0] = (uint8_t)(outbuf[j] );
outline[2 * j + 1] = (uint8_t)(outbuf[j] >> 8);
}
if(fwrite(outline, 1, 28 * 2, outf) != (28 * 2)) {
goto error_out;
}
}
} else {
for(i = 0; i < bpc; i += 0x10) {
decodeline(block + i, outbuf , p1+0, p2+0);
decodeline(block_r + i, outbuf_r, p1+1, p2+1);
for(j = 0; j < 28; j++) {
outline[4 * j + 0] = (uint8_t)(outbuf [j] );
outline[4 * j + 1] = (uint8_t)(outbuf [j] >> 8);
outline[4 * j + 2] = (uint8_t)(outbuf_r[j] );
outline[4 * j + 3] = (uint8_t)(outbuf_r[j] >> 8);
}
if(fwrite(outline, 1, 28 * 2 * 2, outf) != (28 * 2 * 2)) {
goto error_out;
}
}
}
b += bpc;
}
// if we couldn't process the whole block, stop here
if(b < opts.interleave) { break; }
// progress indicator
if((out_indicator_pos >> 20) != (ftello(outf) >> 20)) {
out_indicator_pos = ftello(outf);
printf(".");
fflush(stdout);
}
// seek to next block
in_pos += (opts.channels * opts.interleave) + opts.skip;
}
printf("ok");
goto success;
error_in: printfileerror(inf , NULL ); goto error;
error_out: printfileerror(outf, outname); goto error;
error: returncode = 1; goto end;
success: returncode = 0; goto end;
end:
if(outf) { wav_close(outf); }
if(outname) { free(outname); }
if(block ) { free(block ); }
if(block_r) { free(block_r); }
if(inf) { fseeko(inf, in_pos, SEEK_SET); }
printf("\n");
fflush(stdout);
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
//
// Format: 8
//
// Used by: Suikoden
//
////////////////////////////////////////////////////////////////////////////////
static int fmt_8_detect(FILE *inf, const char* ext) {
int score = 50;
// base the entire test on the file extension for now
(void)inf;
if(!cmpcase(ext, "8")) { return 90; }
return score;
}
static int fmt_8_rip(
FILE *inf,
struct vb2rip_options opts
) {
// set .8-specific options
if(!opts.use_channels) {
opts.use_channels = 1;
opts.channels = 2;
}
if(!opts.use_honor_endflag) {
opts.use_honor_endflag = 1;
opts.honor_endflag = 1;
}
if(!opts.use_samplerate) {
opts.use_samplerate = 1;
opts.samplerate = 44100;
}
if(!opts.use_interleave) {
opts.use_interleave = 1;
opts.interleave = 0x4000;
}
// now pass these options to rip
return rip(inf, opts, NULL);
}
////////////////////////////////////////////////////////////////////////////////
//
// Format: MSA
//
// Used by: Psyvariar Complete Edition, maybe other PS2 games.
//
////////////////////////////////////////////////////////////////////////////////
static int fmt_msa_detect(FILE *inf, const char* ext) {
int score = 50;
// base the entire test on the file extension for now
(void)inf;
if(!cmpcase(ext, "msa")) { return 90; }
return score;
}
static int fmt_msa_rip(
FILE *inf,
struct vb2rip_options opts
) {
uint8_t hdr[0x14];
if(opts.use_offset) {
if(fseeko(inf, opts.offset, SEEK_CUR) != 0) { goto error_in; }
}
opts.use_offset = 0;
if(fread(hdr, 1, 0x14, inf) != 0x14) { goto error_in; }
if(!opts.use_channels) {
opts.use_channels = 1;
opts.channels = 2;
}
if(!opts.use_honor_endflag) {
opts.use_honor_endflag = 1;
opts.honor_endflag = 1;
}
if(!opts.use_samplerate) {
opts.use_samplerate = 1;
opts.samplerate = get32lsb(hdr + 0x10);
if(opts.samplerate < 8000 || opts.samplerate > 48000) {
opts.samplerate = 44100;
}
}
if(!opts.use_interleave) {
opts.use_interleave = 1;
opts.interleave = 0x4000;
}
return rip(inf, opts, NULL);
error_in:
printfileerror(inf, NULL);
return 1;
}
////////////////////////////////////////////////////////////////////////////////
//
// Format: Raw
//
// Used for experimentation.
//
////////////////////////////////////////////////////////////////////////////////
static int fmt_raw_detect(FILE *inf, const char* ext) {
int score = 50;
(void)inf;
(void)ext;
// can never be quite sure if a file is "raw" or not
return score;
}
static int fmt_raw_rip(FILE *inf, struct vb2rip_options opts) {
// just pass these options directly to rip
return rip(inf, opts, NULL);
}
////////////////////////////////////////////////////////////////////////////////
//
// Format: VB2
//
// Used by: DDR, Castlevania Chronicles, other Konami games
//
////////////////////////////////////////////////////////////////////////////////
static int fmt_vb2_detect(FILE *inf, const char* ext) {
int score = 50;
(void)inf;
// if it ends in vb2, we're pretty sure
if(!cmpcase(ext, "vb2")) { return 90; }
// otherwise, it's not so clear - would have to search around for the
// start of the data
return score;
}
//
// Tell if a block of bytes is all zero
//
static int iszeroes(const uint8_t *buf, uint32_t n) {
uint32_t i;
for(i = 0; i < n; i++) {
if(buf[i]) { return 0; }
}
return 1;
}
//
// Detect the beginning of a vb2 music block
// Returns the interleave size if successful
// Returns 0 if no beginning was detected
//
static off_t blockdetect_vb2(FILE* f, off_t ofs, off_t size) {
uint8_t buf0[0x20];
uint8_t buf2[0x20];
uint8_t buf4[0x20];
uint8_t buf8[0x20];
if(size >= 0x2000) {
if(fseeko(f, ofs + 0x0000, SEEK_SET) != 0) { return 0; }
if(fread(buf0, 1, 0x20, f) != 0x20) { return 0; }
}
if(size >= 0x4000) {
if(fseeko(f, ofs + 0x2000, SEEK_SET) != 0) { return 0; }
if(fread(buf2, 1, 0x20, f) != 0x20) { return 0; }
}
if(size >= 0x8000) {
if(fseeko(f, ofs + 0x4000, SEEK_SET) != 0) { return 0; }
if(fread(buf4, 1, 0x20, f) != 0x20) { return 0; }
}
if(size >= 0x10000) {
if(fseeko(f, ofs + 0x8000, SEEK_SET) != 0) { return 0; }
if(fread(buf8, 1, 0x20, f) != 0x20) { return 0; }
}
//
// DDR, various versions
//
if(size >= 0x8000) {
if(
(buf0[0x01] == 0x00) &&
(buf0[0x11] == 0x06) &&
(buf4[0x01] == 0x00) &&
(buf4[0x11] == 0x06)
) { return 0x4000; }
}
//
// DDRMAX2
//
if(size >= 0x4000) {
if(
iszeroes(buf0 + 0x00, 0x10) &&
((buf0[0x11] == 0x06) || (buf0[0x11] == 0x04)) &&
iszeroes(buf2 + 0x00, 0x10) &&
((buf2[0x11] == 0x06) || (buf2[0x11] == 0x04))
) { return 0x2000; }
}
//
// Castlevania Chronicles (J)
//
if(size >= 0x8000) {
if(
((buf0[0x00] == 0x00) && ( iszeroes(buf0 + 0x02, 0x0E))) &&
((buf4[0x00] == 0x00) && ( iszeroes(buf4 + 0x02, 0x0E))) &&
((buf0[0x10] != 0x00) || (!iszeroes(buf0 + 0x12, 0x0E))) &&
((buf4[0x10] != 0x00) || (!iszeroes(buf4 + 0x12, 0x0E))) &&
((buf0[0x11] == 0x02) || (buf0[0x11] == 0x06)) &&
((buf4[0x11] == 0x02) || (buf4[0x11] == 0x06)) &&
(buf0[0x01] == buf4[0x01]) &&
(buf0[0x11] == buf4[0x11])
) { return 0x4000; }
}
//
// Castlevania Chronicles (US)
//
if(size >= 0x10000) {
if(
((buf0[0x00] == 0x00) && ( iszeroes(buf0 + 0x02, 0x0E))) &&
((buf8[0x00] == 0x00) && ( iszeroes(buf8 + 0x02, 0x0E))) &&
((buf0[0x10] != 0x00) || (!iszeroes(buf0 + 0x12, 0x0E))) &&
((buf8[0x10] != 0x00) || (!iszeroes(buf8 + 0x12, 0x0E))) &&
((buf0[0x11] == 0x02) || (buf0[0x11] == 0x06)) &&
((buf8[0x11] == 0x02) || (buf8[0x11] == 0x06)) &&
(buf0[0x01] == buf8[0x01]) &&
(buf0[0x11] == buf8[0x11])
) { return 0x8000; }
}
// all tests failed
return 0;
}
static int fmt_vb2_rip(
FILE *inf,
struct vb2rip_options opts
) {
int errors = 0;
off_t bytesskipped = 0;
off_t startpos;
off_t addpos;
off_t in_size;
off_t searchstartpos = -1;
off_t lastsongendedat = 0;
int songnum = 0;
const char* orig_outname;
char *outname = NULL;
orig_outname = opts.outname;
if(!orig_outname) orig_outname = "out";
outname = malloc(strlen(orig_outname) + 20);
if(!outname) { printf("%s", oom); goto error; }
startpos = ftello(inf);
if(startpos == -1) { goto error_in; }
if(fseeko(inf, 0, SEEK_END) != 0) { goto error_in; }
in_size = ftello(inf);
if(in_size == -1) { goto error_in; }
if(fseeko(inf, startpos, SEEK_SET) != 0) { goto error_in; }
if(!opts.use_channels) {
opts.use_channels = 1;
opts.channels = 2;
}
if(!opts.use_honor_endflag) {
opts.use_honor_endflag = 1;
opts.honor_endflag = 1;
}
addpos = 0;
while((startpos + addpos) < in_size) {
off_t interleave = blockdetect_vb2(
inf,
startpos + addpos,
in_size - (startpos + addpos)
);
if(!interleave) {
if(addpos >= lastsongendedat) {
if(searchstartpos < 0) {
searchstartpos = startpos + addpos;
printf("searching at 0x");
fprinthex(stdout, searchstartpos, 1);
printf("...");
fflush(stdout);
}
bytesskipped += 0x800;
}
addpos += 0x800;
continue;
}
if(searchstartpos >= 0) {
printf("skipped ");
fprintdec(stdout, (startpos + addpos) - searchstartpos);
printf(" bytes\n");
searchstartpos = -1;
}
opts.use_interleave = 1;
opts.interleave = interleave;
sprintf(outname, "%s%04ld", orig_outname, (long)songnum);
opts.outname = outname;
songnum++;
if(fseeko(inf, startpos + addpos, SEEK_SET) != 0) { goto error_in; }
errors += rip(inf, opts, blockdetect_vb2);
//
// rather than advancing completely beyond this song, we should seek back
// 2*interleave to make sure the last block isn't short/malformed.
// this fixes DDRMAX/DDRMAX2
//
lastsongendedat = ((ftello(inf) - startpos) | 0x7FF) ^ 0x7FF;
{ off_t newaddpos = lastsongendedat - 2 * interleave;
if(newaddpos <= addpos) { newaddpos = addpos + 0x800; }
addpos = newaddpos;
}
}
if(searchstartpos >= 0) {
printf("nothing found\n");
}
printf("total bytes skipped: ");
fprintdec(stdout, bytesskipped);
printf("\n");
goto end;
error_in: printfileerror(inf, NULL); goto error;
error:
errors++;
end:
if(outname) free(outname);
return errors;
}
////////////////////////////////////////////////////////////////////////////////
//
// Format: XA2
//
// Used by: Extreme-G 3, possibly other PS2
//
////////////////////////////////////////////////////////////////////////////////
static int fmt_xa2_detect(FILE *inf, const char* ext) {
int score = 50;
(void)inf;
// base the entire test on the file extension for now
if(!cmpcase(ext, "xa2")) { return 90; }
return score;
}
static int fmt_xa2_rip(
FILE *inf,
struct vb2rip_options opts
) {
int errors = 0;
static uint8_t hdr[0x800]; // TODO: not very clean
uint32_t streams;
off_t interleave;
uint32_t sn;
off_t startpos;
const char* orig_outname;
orig_outname = opts.outname;
if(!orig_outname) { orig_outname = "out"; }
// get the header
memset(hdr, 0, sizeof(hdr));
if(fread(hdr, 1, 0x800, inf) != 0x800) { goto error_in; }
startpos = ftello(inf);
if(startpos == -1) { goto error_in; }
streams = get32lsb(hdr);
interleave = get32lsb(hdr + 4);
if(streams < 1) {
printf("invalid stream count present: %ld\n", (long)streams);
return 1;
}
if(
(interleave <= 0) ||
(interleave & (interleave - 1))
) {
printf("invalid interleave value present: 0x");
fprinthex(stdout, interleave, 1);
printf("\n");
return 1;
}
if(!opts.use_channels) {
opts.use_channels = 1;
opts.channels = (streams >= 2) ? 2 : 1;
}
if(!opts.use_honor_endflag) {
opts.use_honor_endflag = 1;
opts.honor_endflag = 1;
}
if(!opts.use_samplerate) {
opts.use_samplerate = 1;
opts.samplerate = 44100;
}
if(!opts.use_interleave) {
opts.use_interleave = 1;
opts.interleave = interleave;
}
for(sn = 0; sn < streams; sn += opts.channels) {
char *outname = malloc(strlen(orig_outname) + 20);
if(!outname) { printf("%s", oom); errors++; break; }
sprintf(outname, "%s%ld", orig_outname, (long)sn);
opts.outname = outname;
// if there's only one stream left, rip it as a mono
if(sn == (streams - 1)) { opts.channels = 1; }
// seek to the appropriate spot
if(fseeko(inf, startpos + sn * opts.interleave, SEEK_SET) != 0) {
goto error_in;
}
// set the appropriate skip value to skip over the other streams
opts.use_skip = 1;
opts.skip = (streams - opts.channels) * opts.interleave;
errors += rip(inf, opts, NULL);
free(outname);
}
return errors;
error_in:
printfileerror(inf, NULL);
return 1;
}
////////////////////////////////////////////////////////////////////////////////
//
// Table of recognized formats
//
typedef int (*fmt_rip_t)(FILE *inf, struct vb2rip_options opts);
typedef int (*fmt_detect_t)(FILE *inf, const char* ext);
struct FMT_TABLE {
const char* name;
fmt_rip_t rip;
fmt_detect_t detect;
const char* desc;
};
static const struct FMT_TABLE fmt_table[] = {
{ "raw", fmt_raw_rip, fmt_raw_detect, "Raw data (for experimentation)" },
{ "vb2", fmt_vb2_rip, fmt_vb2_detect, "Konami multi-song .BIN/.VB2 file (Dance Dance Revolution, etc.)" },
{ "8" , fmt_8_rip , fmt_8_detect , ".8 file (Suikoden)" },
{ "msa", fmt_msa_rip, fmt_msa_detect, ".MSA file (Psyvariar, possibly other PS2 games)" },
{ "xa2", fmt_xa2_rip, fmt_xa2_detect, ".XA2 file (Extreme-G 3, possibly other PS2 games)" },
{ NULL, NULL, NULL, NULL }
};
////////////////////////////////////////////////////////////////////////////////
static void fmt_printtable(void) {
const struct FMT_TABLE *t;
printf(" Format Description\n");
printf(" ------------------------------------------------------------\n");
for(t = fmt_table; t->name; t++) {
printf(" %-9s%s\n", t->name, t->desc);
}
}
////////////////////////////////////////////////////////////////////////////////
//
// determine if a given format name is recognized
//
static int fmt_isvalid(const char* fmt) {
const struct FMT_TABLE *t;
for(t = fmt_table; t->name; t++) {
if(!strcmp(t->name, fmt)) return 1;
}
return 0;
}
////////////////////////////////////////////////////////////////////////////////
//
// detect the format of a file if none was given
// (must return at least some valid string pointer)
//
static const char* fmt_detect(FILE *inf, const char* ext) {
const struct FMT_TABLE *t;
const char* fmt_highest = "raw";
int fmt_highest_score = 50;
for(t = fmt_table; t->name; t++) {
if(t->detect) {
int score = t->detect(inf, ext);
if(score > fmt_highest_score) {
fmt_highest = t->name;
fmt_highest_score = score;
}
}
}
return fmt_highest;
}
////////////////////////////////////////////////////////////////////////////////
//
// rip the actual music from a file
// returns the number of errors that occurred
// fmt and outname must be valid in opts
//
static int fmt_rip(FILE *inf, struct vb2rip_options opts) {
const struct FMT_TABLE *t;
if(!opts.fmt) { opts.fmt = "raw"; }
if(!opts.outname) { opts.outname = "out"; }
if(opts.use_offset) {
if(fseeko(inf, opts.offset, SEEK_CUR) != 0) {
goto error_in;
}
opts.use_offset = 0;
opts.offset = 0;
}
for(t = fmt_table; t->name; t++) {
if(!strcmp(t->name, opts.fmt)) {
return t->rip(inf, opts);
}
}
printf("unknown format '%s'\n", opts.fmt);
return 1;
error_in:
printfileerror(inf, NULL);
return 1;
}
////////////////////////////////////////////////////////////////////////////////
void usage(const char* progname) {
banner();
printf("Usage: %s [options] inputfile(s)\n\n", progname);
printf(
"Options:\n"
" -fmt format Specify the input file format\n"
" -o path Specify the output filename (if one input file is given)\n"
" or specify the output directory (if several are given)\n"
" -mono Treat input file as monaural\n"
" -stereo Treat input file as stereo\n"
" -rate n Specify the sample rate\n"
" -interleave n Specify the block interleave size\n"
" -skip n Skip this many bytes after each block\n"
" -offset n Start at the given offset in the input file\n"
" -endflag Stop decoding when the sample end flag is reached\n"
" -noendflag Ignore the sample end flag\n"
" -maxbytes n Set the maximum number of input bytes to decode\n"
"\n"
);
printf("Supported input formats:\n");
fmt_printtable();
}
////////////////////////////////////////////////////////////////////////////////
//
// returns how many argv spots were used
// returns 0 on error
// if opts is NULL, there are no side effects
//
static int decodeoption(
struct vb2rip_options* opts,
int argc,
char **argv
) {
if(argc < 1) return 0;
if(!strcmp(argv[0], "-fmt")) {
if(argc < 2) { goto needextra; }
if(!fmt_isvalid(argv[1])) {
printf("unknown format '%s'\n", argv[1]);
return 0;
}
opts->fmt = argv[1];
return 2;
} else if(!strcmp(argv[0], "-o")) {
if(argc < 2) { goto needextra; }
opts->outname = argv[1];
return 2;
} else if(!strcmp(argv[0], "-mono")) {
opts->use_channels = 1;
opts->channels = 1;
return 1;
} else if(!strcmp(argv[0], "-stereo")) {
opts->use_channels = 1;
opts->channels = 2;
return 1;
} else if(!strcmp(argv[0], "-rate")) {
if(argc < 2) { goto needextra; }
opts->use_samplerate = 1;
opts->samplerate = strtoul(argv[1], NULL, 0);
return 2;
} else if(!strcmp(argv[0], "-interleave")) {
if(argc < 2) { goto needextra; }
opts->use_interleave = 1;
opts->interleave = strtoofft(argv[1], NULL, 0);
return 2;
} else if(!strcmp(argv[0], "-skip")) {
if(argc < 2) { goto needextra; }
opts->use_skip = 1;
opts->skip = strtoofft(argv[1], NULL, 0);
return 2;
} else if(!strcmp(argv[0], "-offset")) {
if(argc < 2) { goto needextra; }
opts->use_offset = 1;
opts->offset = strtoofft(argv[1], NULL, 0);
return 2;
} else if(!strcmp(argv[0], "-noendflag")) {
opts->use_honor_endflag = 1;
opts->honor_endflag = 0;
return 1;
} else if(!strcmp(argv[0], "-endflag")) {
opts->use_honor_endflag = 1;
opts->honor_endflag = 1;
return 1;
} else if(!strcmp(argv[0], "-maxbytes")) {
if(argc < 2) { goto needextra; }
opts->use_maxbytes = 1;
opts->maxbytes = strtoofft(argv[1], NULL, 0);
return 2;
}
printf("unknown option '%s'\n", argv[0]);
return 0;
needextra:
printf("option '%s' needs an extra parameter\n", argv[0]);
return 0;
}
//
// returns nonzero on error
//
static int getoptions(
struct vb2rip_options* opts,
int argc,
char **argv
) {
int endopts = 0;
int i;
for(i = 1; i < argc; i++) {
if(endopts || (argv[i][0] != '-')) {
opts->inputfilecount++;
} else if(!strcmp(argv[i], "--")) {
endopts = 1;
} else {
int advance = decodeoption(opts, argc - i, argv + i);
if(advance < 1) return 1;
i += (advance - 1);
}
}
// success
return 0;
}
////////////////////////////////////////////////////////////////////////////////
//
// returns the number of errors that occurred
//
static int processfile(const char* infilename, struct vb2rip_options opts) {
int returncode = 1;
const char* fmt;
FILE* f = NULL;
char* innameonly = NULL;
char* outname = NULL;
char separator = '/';
if(!infilename) { printf("no input filename given\n"); goto error; }
// allocate memory for filename strings
innameonly = malloc(strlen(infilename) + 1);
if(!innameonly) { printf("%s", oom); goto error; }
{ int maxoutl = strlen(infilename);
if(opts.outname) { maxoutl += strlen(opts.outname); }
maxoutl += 10;
outname = malloc(maxoutl);
if(!outname) { printf("%s", oom); goto error; }
}
// count directory separators in both input and output names
{ const char* t;
int sepunix = 0;
int sepdos = 0;
if(infilename) {
for(t = infilename; *t; t++) {
switch(*t) {
case '/' : sepunix++; break;
case '\\': sepdos++; break;
}
}
}
if(opts.outname) {
for(t = opts.outname; *t; t++) {
switch(*t) {
case '/' : sepunix++; break;
case '\\': sepdos++; break;
}
}
}
// if one beats the other, use it; otherwise leave at the default
if(sepunix > sepdos ) { separator = '/'; }
if(sepdos > sepunix) { separator = '\\'; }
}
// strip the input filename to its name only
{ const char* t, *base;
base = infilename;
for(t = infilename; *t; t++) {
switch(*t) {
case '/' : case '\\': base = t + 1; break;
}
}
strcpy(innameonly, base);
{ char *p = strrchr(innameonly, '.');
if(p) *p = 0;
}
}
// if no output name was specified at all, then we use innameonly
if(!opts.outname) {
strcpy(outname, innameonly);
// if we only have one input file, we use outname directly
} else if(opts.inputfilecount == 1) {
strcpy(outname, opts.outname);
// otherwise, outname is actually a path to which we'll add innameonly
} else {
int l = strlen(opts.outname);
strcpy(outname, opts.outname);
if(l > 0) {
char c = outname[l - 1];
if(c != '/' && c != '\\') {
outname[l] = separator;
outname[l + 1] = 0;
}
}
strcat(outname, innameonly);
}
// now we actually open the input file
printf("reading %s: ", infilename);
fflush(stdout);
f = fopen(infilename, "rb");
if(!f) { goto error_in; }
// determine the format if necessary, or use the override
fmt = opts.fmt;
if(opts.use_offset) {
if(fseeko(f, opts.offset, SEEK_SET) != 0) { goto error_in; }
opts.use_offset = 0;
opts.offset = 0;
}
if(fmt) {
printf("(format set to: %s)", fmt);
} else {
const char* ext = strrchr(infilename, '.');
if(ext) { ext++; }
else { ext = ""; }
fmt = fmt_detect(f, ext);
printf("(format detected as: %s)", fmt);
}
// set fmt and outname in the options for fmt_rip
opts.fmt = fmt;
opts.outname = outname;
printf("\n");
// call fmt_rip to do the actual ripping work
if(fmt_rip(f, opts)) { goto error; }
goto success;
error_in: printfileerror(f, infilename); goto error;
error: returncode = 1; goto end;
success: returncode = 0; goto end;
end:
if(f) { fclose(f); }
if(innameonly) { free(innameonly); }
if(outname) { free(outname); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
int main(int argc, char** argv) {
struct vb2rip_options opts;
const char* progname = argv[0];
int i;
int endopts = 0;
int errors = 0;
// get options from command line
memset(&opts, 0, sizeof(opts));
if(getoptions(&opts, argc, argv)) return 1;
// make sure at least one input file was specified
if((opts.inputfilecount) < 1) {
usage(progname);
return 1;
}
// now process each file
endopts = 0;
for(i = 1; i < argc; i++) {
if(endopts || (argv[i][0] != '-')) {
errors += processfile(argv[i], opts);
} else if(!strcmp(argv[i], "--")) {
endopts = 1;
} else {
struct vb2rip_options dummy;
int advance = decodeoption(&dummy, argc - i, argv + i);
if(advance < 1) return 1;
i += (advance - 1);
}
}
return errors;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/version.h 0000644 0001750 0001750 00000000010 11731303760 016153 0 ustar corlett corlett "v1.03"
cmdpack-1.03-src/src/wordadd.c 0000644 0001750 0001750 00000020312 11731303760 016114 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "wordadd - Addition word puzzle solver"
#define COPYR "Copyright (C) 2010 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
//
// Count trailing zeroes
//
static uint8_t ctztable[1024];
static void init_ctztable(void) {
size_t i, j, k;
ctztable[0] = 0;
for(i = 1; i < 1024; i++) {
for(k = 0, j = i; !(j & 1); k++, j >>= 1) { }
ctztable[i] = k;
}
}
////////////////////////////////////////////////////////////////////////////////
enum {
DIGIT = 0x0F,
KNOWN = 0x10,
NONZERO = 0x20
};
static char** lines;
static size_t n_lines;
static uint8_t digitmap[256];
static uint16_t available = 0x3FF;
static uint32_t solutions = 0;
static char printresults = 0;
static void init_puzzle(void) {
size_t i;
//
// Reset digit maps
//
memset(digitmap, 0, 256);
//
// Digits not present: 0
//
digitmap[0] = KNOWN | 0;
//
// 0-9 are literal
//
for(i = 0; i < 10; i++) {
digitmap['0' + i] = KNOWN | i;
}
//
// First letter of each word must be nonzero
//
for(i = 0; i < n_lines; i++) {
if(lines[i][0]) {
digitmap[(uint8_t)lines[i][0]] |= NONZERO;
}
}
}
void print_puzzle(void) {
size_t i;
for(i = 0; i < n_lines; i++) {
if(i == (n_lines - 1)) {
printf(" = ");
} else if(i > 0) {
printf(" + ");
}
printf("%s", lines[i]);
}
printf("\n");
}
void print_solution(void) {
size_t i, j;
for(i = 0; i < n_lines; i++) {
if(i == (n_lines - 1)) {
printf(" = ");
} else if(i > 0) {
printf(" + ");
}
for(j = 0; lines[i][j]; j++) {
fputc('0' + (digitmap[(uint8_t)(lines[i][j])] & DIGIT), stdout);
}
}
printf("\n");
}
////////////////////////////////////////////////////////////////////////////////
void solve_puzzle(
size_t line,
size_t place, // 0 = rightmost
int carry_in,
char final
) {
//
// Obtain the current letter, or 0 if none
//
size_t len = strlen(lines[line]);
uint8_t letter =
(place < len) ?
(letter = lines[line][(len - 1) - place]) : 0;
if(letter) { final = 0; }
if(line == (n_lines - 1)) {
//
// This is the sum line
//
if(final) {
//
// We have finished the addition
//
if(carry_in == 0) {
//
// Sum matches: Found a solution
//
if(printresults) { print_solution(); }
solutions++;
}
} else {
//
// Get next carry digit
//
int carry_out = carry_in / 10;
carry_in %= 10;
if(digitmap[letter] & KNOWN) {
//
// Letter is mapped
//
if((digitmap[letter] & DIGIT) == carry_in) {
//
// Letter is mapped to the correct digit; move on
//
solve_puzzle(0, place + 1, carry_out, 1);
}
} else {
//
// Letter is not mapped yet.
// We will need to map it to carry_in.
//
int mask = 1 << carry_in;
if(
(available & mask) &&
(carry_in || !(digitmap[letter] & NONZERO))
) {
//
// Digit we need is available; map it and move on
//
digitmap[letter] |= KNOWN | carry_in;
available ^= mask;
solve_puzzle(0, place + 1, carry_out, 1);
digitmap[letter] &= ~(KNOWN | DIGIT);
available ^= mask;
}
}
}
} else {
//
// This is not the sum line
//
if(digitmap[letter] & KNOWN) {
//
// Letter is mapped; add it and move on
//
solve_puzzle(line + 1, place, carry_in + (digitmap[letter] & DIGIT), final);
} else {
//
// Letter is not mapped
//
//
// Try all available digits, and count the solutions
//
int t = available;
if(digitmap[letter] & NONZERO) { t &= ~1; }
for(; t; t &= t - 1) {
int digit = ctztable[t];
int mask = 1 << digit;
digitmap[letter] |= KNOWN | digit;
available ^= mask;
solve_puzzle(line + 1, place, carry_in + digit, final);
digitmap[letter] &= ~(KNOWN | DIGIT);
available ^= mask;
}
}
}
}
static void solve_puzzle_all(void) {
solve_puzzle(0, 0, 0, 1);
}
////////////////////////////////////////////////////////////////////////////////
int main(int argc, char** argv) {
int i;
// Bitmask of letters A-Z that were used
uint32_t letters = 0;
int lettercount;
int avdigitcount;
if(argc < 3) {
banner();
printf(
"Usage: %s words... sum\n"
"Examples:\n"
" %s BEEF BACON MEATS\n",
argv[0],
argv[0]
);
return 1;
}
for(i = 1; i < argc; i++) {
char* s = argv[i];
size_t j;
for(j = 0; s[j]; j++) {
int c = ((unsigned char)(s[j]));
static const char* allletters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
static const char* alldigits = "0123456789";
if(isalpha(c)) {
const char* t;
s[j] = c = toupper(c);
t = strchr(allletters, c);
if(t) {
letters |= ((uint32_t)1) << (t - allletters);
continue;
}
} else if(isdigit(c)) {
const char* t = strchr(alldigits, c);
if(t) {
//
// Allow digits, but don't allow letters to use that digit
//
available &= ~(1 << (t - alldigits));
continue;
}
}
printf("Not a word: \"%s\"\n", s);
return 1;
}
}
lines = argv + 1;
n_lines = argc - 1;
//
// Count letters
//
lettercount = 0;
for(i = 0; i < 26; i++) {
lettercount += (letters >> i) & 1;
}
if(lettercount < 1) {
printf("Not enough letters\n");
return 1;
}
if(lettercount > 10) {
printf("Too many letters (%d)\n", lettercount);
return 1;
}
//
// Count available digits
//
avdigitcount = 0;
for(i = 0; i < 10; i++) {
avdigitcount += (available >> i) & 1;
}
if(lettercount > avdigitcount) {
printf(
"There are more letters (%d) than available digits (%d)\n",
lettercount,
avdigitcount
);
return 1;
}
//
// Solve
//
init_ctztable();
init_puzzle();
print_puzzle();
printresults = 1;
solve_puzzle_all();
printf("Solutions: %lu\n", (unsigned long)solutions);
return 0;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/zerofill.c 0000644 0001750 0001750 00000014400 11731303760 016317 0 ustar corlett corlett ////////////////////////////////////////////////////////////////////////////////
//
#define TITLE "zerofill - Create a large, empty file"
#define COPYR "Copyright (C) 2011 Neill Corlett"
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
//
////////////////////////////////////////////////////////////////////////////////
#include "common.h"
#include "banner.h"
////////////////////////////////////////////////////////////////////////////////
//
// Convert a time_t to a struct tm, safely
//
static struct tm my_localtime(time_t t) {
struct tm *p_tm = localtime(&t);
if(!p_tm) { t = 0; p_tm = localtime(&t); }
if(!p_tm) {
struct tm fallback;
memset(&fallback, 0, sizeof(fallback));
return fallback;
}
return (*p_tm);
}
////////////////////////////////////////////////////////////////////////////////
static void fprinttime(FILE* f, time_t t) {
size_t r;
char buf[64];
struct tm my_tm = my_localtime(t);
memset(buf, 0, sizeof(buf));
r = strftime(buf, sizeof(buf)-1, "%c", &my_tm);
if(r < 1) {
strncpy(buf, "(invalid date)", sizeof(buf)-1);
}
fputs(buf, f);
}
////////////////////////////////////////////////////////////////////////////////
static void progress(
FILE* f,
off_t written,
off_t size,
time_t time_cur,
time_t time_start
) {
time_t elapsed = time_cur - time_start;
{ off_t divider;
off_t percent;
divider = size / 100;
if(divider < 1) { divider = 1; }
percent = (size == 0) ? 100 : (written / divider);
if(percent < 0) { percent = 0; }
if(percent > 100) { percent = 100; }
fprintf(f, "%3d%%", (int)percent);
}
if(elapsed >= 5) {
off_t rate = written / ((off_t)(elapsed > 1 ? elapsed : 1));
off_t sec_remain = (size - written) / (rate > 1 ? rate : 1);
if(sec_remain <= 1000000) {
time_t eta = time_cur + sec_remain;
fputs(" (", f);
fprintdec(f, rate);
fputs(" byte/sec, ETA ", f);
fprinttime(f, eta);
fputs(") ", f);
}
}
fputs("\r", f);
fflush(f);
}
////////////////////////////////////////////////////////////////////////////////
static uint8_t buf[0x8000LU];
int main(int argc, char **argv) {
int returncode = 0;
int force = 0;
int quiet = 0;
const char* filename = NULL;
FILE* f = NULL;
off_t size = 0;
off_t written = 0;
time_t time_start = time(NULL);
time_t time_cur = 0;
normalize_argv0(argv[0]);
//
// Check command line
//
{ int argn = 0;
int i;
for(i = 1; i < argc; i++) {
if(argv[i][0] == '-' && argn == 0) {
// An option
if(argv[i][1] != 0 && argv[i][2] == 0) {
switch(argv[i][1]) {
case '-':
// No more options
argn = 1;
continue;
case 'f':
// Force
force = 1;
continue;
case 'q':
// Quiet
quiet = 1;
continue;
}
}
printf("Unknown option: %s\n", argv[i]);
goto usage;
} else {
switch(argn) {
case 0:
case 1:
size = strtoofft(argv[i], NULL, 0);
argn = 2;
break;
case 2:
filename = argv[i];
argn = 3;
break;
default:
goto usage;
}
}
}
if(argn != 3) { goto usage; }
}
if(size < 0) {
printf("Error: Size must not be negative\n");
goto error;
}
if(!force) {
//
// Make sure the file doesn't already exist
//
f = fopen(filename, "rb");
if(f) {
printf("Error: %s already exists (use -f to overwrite)\n", filename);
goto error;
}
}
f = fopen(filename, "wb");
if(!f) { goto fileerror; }
if(!quiet) {
printf("Writing ");
fprintdec(stdout, size);
printf(" bytes to file: %s\n", filename);
}
memset(buf, 0, sizeof(buf));
while(written < size) {
off_t remain;
size_t s;
//
// Do progress indicator
//
if(!quiet) {
time_t t = time(NULL);
if(t != time_cur) {
time_cur = t;
progress(stderr, written, size, time_cur, time_start);
}
}
//
// Write a block
//
remain = size - written;
if(remain > ((off_t)(sizeof(buf)))) {
remain = ((off_t)(sizeof(buf)));
}
s = fwrite(buf, 1, (size_t)remain, f);
if(s != ((size_t)remain)) {
if(!quiet) {
fputs("\n", stdout);
}
goto fileerror;
}
written += remain;
}
//
// Done
//
if(!quiet) {
time_cur = time(NULL);
progress(stderr, written, size, time_cur, time_start);
printf("\nDone\n");
}
goto end;
fileerror:
printfileerror(f, filename);
goto error;
usage:
banner();
printf("Usage: %s [-f] [-q] size filename\n", argv[0]);
printf(" -f: Force overwrite\n");
printf(" -q: Quiet\n");
goto error;
error:
returncode = 1;
end:
if(f != NULL) { fclose(f); }
return returncode;
}
////////////////////////////////////////////////////////////////////////////////
cmdpack-1.03-src/src/mkdjgpp.bat 0000644 0001750 0001750 00000001355 11731303760 016456 0 ustar corlett corlett @echo off
if "%1" == "" goto usage
if not exist %1.c goto notfound
echo (DJGPP 32-bit DOS) %1
rem - You need djdev203, binutils/gcc, and pmode13b.
rem - This assumes DJGPP is in Y:\DJGPP\BIN.
rem - This also assumes UPX is somewhere in your path.
gcc -O9 -Wall -Wextra -Werror -fomit-frame-pointer %1.c -s -o %1.exe
IF ERRORLEVEL 1 goto exit
if exist %1.obj del %1.obj
if exist %1.o del %1.o
exe2coff %1.exe
IF ERRORLEVEL 1 goto exit
copy /b Y:\DJGPP\BIN\PMODSTUB.EXE+%1 %1.exe > nul
IF ERRORLEVEL 1 goto exit
del %1
IF ERRORLEVEL 1 goto exit
upx --best %1.exe > nul
IF ERRORLEVEL 1 goto exit
goto exit
:usage
echo Usage: %0 program_name
goto exit
:notfound
echo %1.c not found
goto exit
:exit
cmdpack-1.03-src/src/mkgcc 0000755 0001750 0001750 00000000142 11731303760 015335 0 ustar corlett corlett #!/bin/sh
MYFLAGS=
gcc $MYFLAGS -O9 -Wall -Wextra -Werror -fomit-frame-pointer "$1.c" -s -o "$1"
cmdpack-1.03-src/src/mkhuman.bat 0000644 0001750 0001750 00000000644 11731303760 016462 0 ustar corlett corlett echo off
rem I'm using gcc 2.6.3 and the "Mr. DON" libcd4.tgz, and g2cpp.x is replaced with cpp.x from
rem the gcc 2.95.2 beta
if "%1" == "" goto usage
if not exist %1.c goto notfound
echo (gcc2 Human68k) %1
gcc2 -O9 -Wall -Werror -fomit-frame-pointer %1.c -s -o %1.x
del tmp.o > nul
goto exit
:usage
echo Usage: %0 program_name
goto exit
:notfound
echo %1.c not found
goto exit
:exit
cmdpack-1.03-src/src/mkmacppc 0000755 0001750 0001750 00000000155 11731303760 016050 0 ustar corlett corlett #!/bin/sh
MYFLAGS="-arch ppc"
gcc $MYFLAGS -O9 -Wall -Wextra -Werror -fomit-frame-pointer "$1.c" -s -o "$1"
cmdpack-1.03-src/src/mkmacx64 0000755 0001750 0001750 00000000207 11731303760 015705 0 ustar corlett corlett #!/bin/sh
MYFLAGS="-mmacosx-version-min=10.4 -arch x86_64"
gcc $MYFLAGS -O9 -Wall -Wextra -Werror -fomit-frame-pointer "$1.c" -o "$1"
cmdpack-1.03-src/src/mkmacx86 0000755 0001750 0001750 00000000205 11731303760 015707 0 ustar corlett corlett #!/bin/sh
MYFLAGS="-mmacosx-version-min=10.4 -arch i386"
gcc $MYFLAGS -O9 -Wall -Wextra -Werror -fomit-frame-pointer "$1.c" -o "$1"
cmdpack-1.03-src/src/mkming32.bat 0000644 0001750 0001750 00000000510 11731303760 016441 0 ustar corlett corlett @echo off
if "%1" == "" goto usage
if not exist %1.c goto notfound
echo (MinGW 32-bit Windows) %1
i686-w64-mingw32-gcc -DWINVER=0x0400 -O9 -Wall -Wextra -Werror -fomit-frame-pointer %1.c -s -o %1.exe
goto exit
:usage
echo Usage: %0 program_name
goto exit
:notfound
echo %1.c not found
goto exit
:exit
cmdpack-1.03-src/src/mkming64.bat 0000644 0001750 0001750 00000000472 11731303760 016455 0 ustar corlett corlett @echo off
if "%1" == "" goto usage
if not exist %1.c goto notfound
echo (MinGW 64-bit Windows) %1
x86_64-w64-mingw32-gcc -O9 -Wall -Wextra -Werror -fomit-frame-pointer %1.c -s -o %1.exe
goto exit
:usage
echo Usage: %0 program_name
goto exit
:notfound
echo %1.c not found
goto exit
:exit
cmdpack-1.03-src/src/mkmsc.bat 0000644 0001750 0001750 00000001575 11731303760 016140 0 ustar corlett corlett @echo off
rem - Build using various Microsoft C++ variants
if "%1" == "" goto usage
if not exist %1.c goto notfound
rem - Platform selection
if "%CPU%" == "ALPHA" goto axp
goto msc
rem - Build using the Microsoft/Digital AXP C++ compiler
rem - (part of the NT 3.5 SDK, I think)
:axp
echo (Digital AXP C++) %1
cl /W3 /WX /O /Gs /Gy %1.c /link /subsystem:console /opt:ref /fixed /release /nodefaultlib:oldnames.lib kernel32.lib user32.lib setargv.obj
IF ERRORLEVEL 1 goto exit
goto cleanup
rem - Build using just regular Microsoft C++?
:msc
echo (Microsoft C++) %1
cl /W3 /WX /Ox /Gy %1.c /link /fixed /opt:ref /release user32.lib setargv.obj
IF ERRORLEVEL 1 goto exit
goto cleanup
:cleanup
if exist %1.obj del %1.obj
if exist %1.o del %1.o
goto exit
:usage
echo Usage: %0 program_name
goto exit
:notfound
echo %1.c not found
goto exit
:exit
cmdpack-1.03-src/src/mkturboc.bat 0000644 0001750 0001750 00000001030 11731303760 016636 0 ustar corlett corlett @echo off
if "%1" == "" goto usage
if not exist %1.c goto notfound
echo (Turbo C 16-bit DOS) %1
rem -
rem - Have to be careful with optimization options; in
rem - particular, -O has demonstrably generated wrong code
rem -
TCC -IY:\TURBOC\INCLUDE -LY:\TURBOC\LIB -ml %1.c Y:\TURBOC\LIB\WILDARGS.OBJ
if errorlevel 1 goto exit
if exist %1.obj del %1.obj
if exist %1.o del %1.o
upx --best %1.exe > nul
goto exit
:usage
echo Usage: %0 program_name
goto exit
:notfound
echo %1.c not found
goto exit
:exit
cmdpack-1.03-src/src/mkwatcom.bat 0000644 0001750 0001750 00000001554 11731303760 016645 0 ustar corlett corlett @echo off
if "%1" == "" goto usage
if not exist %1.c goto notfound
echo (OpenWatcom 16-bit DOS) %1
PATH Y:\WATCOM\BINW;%PATH%
SET INCLUDE=Y:\WATCOM\H
SET WATCOM=Y:\WATCOM
SET EDPATH=Y:\WATCOM\EDDAT
SET WIPFC=Y:\WATCOM\WIPFC
if exist %1.err del %1.err
wcc -ml -j -0 -d0 -obmilers -we -wx -q %WATCOM%\src\startup\wildargv.c
if errorlevel 1 goto doerr
wcc -ml -j -0 -d0 -obmilers -we -wx -q %1.c
if exist %1.err goto doerr
if errorlevel 1 goto doerr
wlink system dos name %1.exe file %1.obj file wildargv.obj
if exist %1.err goto doerr
if errorlevel 1 goto doerr
if exist %1.obj del %1.obj
upx --best %1.exe > nul
goto exit
:doerr
if exist %1 type %1.err
if exist %1 del %1.err
goto exit
:usage
echo Usage: %0 program_name
goto exit
:notfound
echo %1.c not found
goto exit
:exit
if exist wildargv.obj del wildargv.obj