pax_global_header00006660000000000000000000000064144723265550014527gustar00rootroot0000000000000052 comment=df5ceea0c7c825da626ef96c5d0bb85b05513be5 base16384-2.2.5/000077500000000000000000000000001447232655500130555ustar00rootroot00000000000000base16384-2.2.5/.github/000077500000000000000000000000001447232655500144155ustar00rootroot00000000000000base16384-2.2.5/.github/workflows/000077500000000000000000000000001447232655500164525ustar00rootroot00000000000000base16384-2.2.5/.github/workflows/release.yml000066400000000000000000000022361447232655500206200ustar00rootroot00000000000000name: release on: push: tags: - v* env: GITHUB_TOKEN: ${{ github.token }} jobs: my-job: name: Build on Push Tag 🚀 runs-on: ubuntu-latest steps: - name: Check out code uses: actions/checkout@v2 - name: Set up Build tools run: | sudo apt-get update sudo apt-get install -y gcc wget https://justine.lol/cosmopolitan/cosmopolitan-amalgamation-1.0.zip unzip cosmopolitan-amalgamation-1.0.zip - name: Build Cosmopolitan run: | gcc -g -Os -static -nostdlib -nostdinc -fno-pie -no-pie -mno-red-zone \ -fno-omit-frame-pointer -pg -mnop-mcount -D__cosmopolitan \ -o base16384.com.dbg base16384.c file.c base1432.c -fuse-ld=bfd -Wl,-T,ape.lds \ -include cosmopolitan.h crt.o ape.o cosmopolitan.a objcopy -S -O binary base16384.com.dbg base16384.com - name: Upload binaries to release uses: svenstaro/upload-release-action@v2 with: repo_token: ${{ secrets.GITHUB_TOKEN }} file: base16384.com tag: ${{ github.ref }} overwrite: true file_glob: true base16384-2.2.5/.gitignore000066400000000000000000000000371447232655500150450ustar00rootroot00000000000000build .vscode .DS_Store obj-* base16384-2.2.5/CMakeLists.txt000066400000000000000000000021421447232655500156140ustar00rootroot00000000000000cmake_minimum_required(VERSION 2.8.12) if (POLICY CMP0048) cmake_policy(SET CMP0048 NEW) endif (POLICY CMP0048) project(base16384 VERSION 2.2.5) add_executable(base16384_b base16384.c) include(TestBigEndian) test_big_endian(isBigEndian) if (${isBigEndian}) add_definitions(-DWORDS_BIGENDIAN) endif() IF(CMAKE_SIZEOF_VOID_P EQUAL 8) add_library(base16384 SHARED file.c base1464.c) add_library(base16384_s STATIC file.c base1464.c) ELSE() add_library(base16384 SHARED file.c base1432.c) add_library(base16384_s STATIC file.c base1432.c) ENDIF() set_target_properties(base16384_b PROPERTIES OUTPUT_NAME base16384) set_target_properties(base16384_s PROPERTIES OUTPUT_NAME base16384) set_target_properties(base16384 PROPERTIES VERSION ${PROJECT_VERSION} SOVERSION ${PROJECT_VERSION_MAJOR}) target_link_libraries(base16384_b base16384_s) INSTALL(TARGETS base16384_b RUNTIME DESTINATION bin) INSTALL(TARGETS base16384 LIBRARY DESTINATION lib) INSTALL(TARGETS base16384_s ARCHIVE DESTINATION lib) INSTALL(FILES base16384.h DESTINATION include) INSTALL(FILES base16384.1 DESTINATION share/man/man1) base16384-2.2.5/LICENSE000066400000000000000000001045151447232655500140700ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. 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IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 17. Interpretation of Sections 15 and 16. If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee. 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 free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least 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 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 . 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 . base16384-2.2.5/README.md000066400000000000000000000646561447232655500143550ustar00rootroot00000000000000# base16384 > **Note**: This project used the awesome cross-platform binary compiling tool [cosmopolitan](https://github.com/jart/cosmopolitan) > Alternatives: [Go](https://github.com/fumiama/go-base16384), [Python](https://github.com/synodriver/pybase16384), [Android](https://github.com/fumiama/android-base16384), [TypeScript](https://github.com/shigma/base16384.js), [Lua(binding)](https://github.com/synodriver/lua-base16384), [Lua(pure)](https://github.com/Yiwen-Chan/base16384), [C#](https://github.com/lc6464/Base16384.Net), [Rust](https://github.com/Wybxc/base16384-rs) Encode binary file to printable utf16be, and vice versa. ## Description 说明 Use 16384 Chinene characters (from \u4E00 to \u8DFF) as the "alphabet", just like what base64 did. 使用16384个汉字(从`\u4E00`到`\u8DFF`)作为字符表，就像base64用64个字符作为字符表一样。 If length of the data has a remainder after moduled by 7, we will use \u3Dxx to log it with xx ranging from 01 to 06. 使用`\u3Dxx`附加在末尾以表示编码时数据不满7位的个数，其范围在01~06。 ## Benefits 优点 Save more space and since the code 0x0000 is encoded to "一", finding zero space seems to be easier. 相较base64节省更多空间，更容易发现二进制文件的规律。 ## Usage 使用说明 ### Install from Debian Bookworm or higher 从 Debian Bookworm 或更高版本安装 ```bash sudo apt install base16384 ``` ### Install from Homebrew 从 Homebrew 安装 ```bash brew install base16384 ``` ### Install from my PPA in Ubuntu 乌班图下从我的 PPA 安装 ```bash sudo add-apt-repository ppa:fumiama/ppa sudo apt-get update sudo apt-get install base16384 ``` ### Build from source code 编译 Clone this repo first. 首先克隆该仓库。 ```bash git clone https://github.com/fumiama/base16384.git cd base16384 ``` Then use `cmake` to build. 然后使用`cmake`进行构建。 ```bash mkdir build cd build cmake -DCMAKE_BUILD_TYPE:STRING=Release -G Ninja .. cmake --build . --config Release --target all -- cmake --install . ``` Now you can encode/decode a file by commands below. 现在可以使用命令对文件进行编码/解码。 ```kotlin Usage: base16384 [-edt] [inputfile] [outputfile] -e encode -d decode -t show spend time inputfile pass - to read from stdin outputfile pass - to write to stdout ``` ## Examples 用例 1. Encode simple text 简单文本编码 ```bash echo -n "1234567" | base16384 -e - - | iconv -f utf-16be -t utf-8 婌焳廔萷 ``` 3. Decode simple text 简单文本解码 ```bash echo -n "婌焳廔萷" | iconv -f utf-8 -t utf-16be | base16384 -d - - 1234567 ``` 3. Encode file 编码文件 The text below is the encoding of the base16384 itself on MacOS 12.6 arm64. It is clear to see the strucutre of the binary file. 下面的文本是使用base16384程序在 MacOS Mojave 版本下编码自身的结果。可见文件结构十分清晰。 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一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一丁劈湠勀一久也旗蔷徑睮樀北嘢幀旗菷寑牯歝唀偁乤汛呅词艵暗萦玹牥檀圇嚀彀旘蓆讍祟柙敇徥筥两万嚠彀旘蓆词猀爀唣久也枘蓆词猀爀唣湅也枙著後亐东爁匁浦槜呖蘂帀檒伔佽瑰歝吰偀乲戄戅讙聥晙三丁聘剐叶柝聩欙帉丁聠剐叶莵潰两万垠彀旛敖螵潰两万埀彀旛蔆掸亐东疁匁浰杜甦诈亐东瘀剅也樜璖蟑琀爀唨渄彀旜啗忌亐东眀剅也檙搖市帀檦丑匁浳欘敂弥屏弑慣市帀檨丑匁浳欜瓆掸亐东碀剅也歛瑶揑焀爀唫丄彀旝蔦珑猀爀一卼丅丁珶莡浥氙搷揑獟栙搖徕耀慙著彽腴晜畅讵脀扛搖玸乖暘收拄萳對台佭牥曘畖昃圁杛琶埕琀膀帠一七丩佰丌们叀一垕籣槙呐侹牥曛葆戂搁一珶昁蔀緀帀宥穥両縗丂威最圐刌二喀丰凰焀什垲戀丂旙渊丄仄乀丶玱猀稀攀僔佤丮渐娂舦一縏檬七両烠丌仄娀丰冠舀什娄刀刀舰戀一一丩佴焐卜訁柰呤促佣縫蘊爄一一偐尀万一布爑一侀丐乐咀丁渀刀指一习丄丧帐一封一夀蘀丁一一嘀一净开一一一帀一搀一仰刀乨咀一刀一堀一丼伀丁潰一伀一凐一丏乀七幌一乀一佐一七縐七蔕一丐一乩一一訄一弆一丄一丞縀一崁一垱嘀丁一三一一净帀丰崀一帀丂甀一仰刀仼剀一刀一紀一丼圀丰倀一伀一婀一丏偀不亀帀乀一儰一七縐丂爋一丐一仚一一訄一褂縀丄一丸一一伀一帀一一一与瘀一乀一刀一一一七茀一丐一伀一一一一伀帀丄一乀一一一一亰刀丁一丐一一一一乌伀一帀丄一一一一业乀一刀丁一一一一丈帐一伀一帀一一一丂渄一乀一刀一一一一紁一丐一伀一一一一寀帀丄一乀一一一一凐刀丁一丐一一一一伔伀一帀丄一一一一之乀一刀丁一一一一且縐一伀一帀一一一丅稄一乀一刀一一一丁漁一丐一伀一一一一柀帀丄一乀一一一一啐刀丁一丐一一一一俴伀一帀丄一一一一亅乀一刀丁一一一一丣丐一伀一帀一一一丁一一剀一么一丄縀一戀一佐一世一丁樀一吀一乤一丆渀一椀一俀一丝一丁蘀一嗀一亀一丈帀一瀀一一丁与一一言一囀一乀一丄帀一怀一估一且一丁戀一厀一乜一丆一一最一侠一丛一丁縀一啀一乸一万縀一渀一倐一丢一丂丁浟楚叶握獣歝呕计獡朙攠佽灡櫙愓曌蘴旙呖宽牥丗萦反猱完膃彽牥曛葆捽瑤丗萦反猱完膃彽牥曛葆捽瑩椙帅讉潳杌慣嫠艟朙搶讑獟果丅讉潳杌慣嫠艟杛琶讑猀旘琗宔缶嫎充讕籣槙呕讙爀旘琗宔缶嫎充讕籣槙呕讙睬杀叶垅腥婍焳滑浥榘蓶徕浦樀叶徕煢歙清讕籣暝摠佽略欗蔷待聴旛攰佽筡桛清譽浳欙咖蟀也旗蔷徑絵欜丅讍穯曚菶殕艴桛摐佽煬槜葐佽瑣椛蔶戁浦柙敆威浦槜呖蘁浦樝敆威浦檙搖币浦毜璗徔也楛搗丁浭歛瓖叀也槜呖蘁浰杜甦诈也樜璖蟑琀旜啗忌也檙搖币浳欘敂弥屏弑慣币浳欜瓆掸也歛瑶揑焀旝蔦珑猀朞擆彽腴歘珶垥籤杜清证聩榝号揍潧杀一一一一㴁 base16384-2.2.5/base1432.c000066400000000000000000000134371447232655500144550ustar00rootroot00000000000000/* base1432.c * This file is part of the base16384 distribution (https://github.com/fumiama/base16384). * Copyright (c) 2022-2023 Fumiama Minamoto. * * 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 . */ #ifdef __cosmopolitan // always le # define be16toh(x) bswap_16(x) # define be32toh(x) bswap_32(x) # define htobe16(x) bswap_16(x) # define htobe32(x) bswap_32(x) #else #include #include #include #ifdef __linux__ # include #endif #ifdef __FreeBSD__ # include #endif #ifdef __NetBSD__ # include #endif #ifdef __OpenBSD__ # include # define be16toh(x) betoh16(x) # define be32toh(x) betoh32(x) #endif #ifdef __APPLE__ # define be16toh(x) ntohs(x) # define be32toh(x) ntohl(x) # define htobe16(x) ntohs(x) # define htobe32(x) htonl(x) #endif #ifdef _WIN32 #ifdef WORDS_BIGENDIAN # define be16toh(x) (x) # define be32toh(x) (x) # define htobe16(x) (x) # define htobe32(x) (x) #else # define be16toh(x) _byteswap_ushort(x) # define be32toh(x) _byteswap_ulong(x) # define htobe16(x) _byteswap_ushort(x) # define htobe32(x) _byteswap_ulong(x) #endif #endif #endif // #define DEBUG int base16384_encode(const char* data, int dlen, char* buf) { int outlen = dlen / 7 * 8; int offset = dlen % 7; switch(offset) { // 算上偏移标志字符占用的2字节 case 0: break; case 1: outlen += 4; break; case 2: case 3: outlen += 6; break; case 4: case 5: outlen += 8; break; case 6: outlen += 10; break; default: break; } #ifdef DEBUG printf("outlen: %llu, offset: %u, malloc: %llu\n", outlen, offset, outlen + 8); #endif uint32_t* vals = (uint32_t*)buf; uint32_t n = 0; int32_t i = 0; for(; i <= dlen - 7; i += 7) { register uint32_t sum = 0; register uint32_t shift = htobe32(*(uint32_t*)(data+i)); sum |= (shift>>2) & 0x3fff0000; sum |= (shift>>4) & 0x00003fff; sum += 0x4e004e00; vals[n++] = be32toh(sum); shift <<= 26; shift &= 0x3c000000; sum = 0; shift |= (htobe32(*(uint32_t*)(data+i+4))>>6)&0x03fffffc; sum |= shift & 0x3fff0000; shift >>= 2; sum |= shift & 0x00003fff; sum += 0x4e004e00; vals[n++] = be32toh(sum); } uint8_t o = offset; if(o--) { register uint32_t sum = 0x0000003f & (data[i] >> 2); sum |= ((uint32_t)data[i] << 14) & 0x0000c000; if(o--) { sum |= ((uint32_t)data[i + 1] << 6) & 0x00003f00; sum |= ((uint32_t)data[i + 1] << 20) & 0x00300000; if(o--) { sum |= ((uint32_t)data[i + 2] << 12) & 0x000f0000; sum |= ((uint32_t)data[i + 2] << 28) & 0xf0000000; if(o--) { sum |= ((uint32_t)data[i + 3] << 20) & 0x0f000000; sum += 0x004e004e; #ifdef WORDS_BIGENDIAN vals[n++] = __builtin_bswap32(sum); #else vals[n++] = sum; #endif sum = (((uint32_t)data[i + 3] << 2)) & 0x0000003c; if(o--) { sum |= (((uint32_t)data[i + 4] >> 6)) & 0x00000003; sum |= ((uint32_t)data[i + 4] << 10) & 0x0000fc00; if(o--) { sum |= ((uint32_t)data[i + 5] << 2) & 0x00000300; sum |= ((uint32_t)data[i + 5] << 16) & 0x003f0000; } } } } } sum += 0x004e004e; #ifdef WORDS_BIGENDIAN vals[n] = __builtin_bswap32(sum); #else vals[n] = sum; #endif buf[outlen - 2] = '='; buf[outlen - 1] = offset; } return outlen; } int base16384_decode(const char* data, int dlen, char* buf) { int outlen = dlen; int offset = 0; if(data[dlen-2] == '=') { offset = data[dlen-1]; switch(offset) { // 算上偏移标志字符占用的2字节 case 0: break; case 1: outlen -= 4; break; case 2: case 3: outlen -= 6; break; case 4: case 5: outlen -= 8; break; case 6: outlen -= 10; break; default: break; } } outlen = outlen / 8 * 7 + offset; uint32_t* vals = (uint32_t*)data; uint32_t n = 0; int32_t i = 0; for(; i <= outlen - 7; i+=7) { // n实际每次自增2 register uint32_t sum = 0; register uint32_t shift = htobe32(vals[n++]) - 0x4e004e00; shift <<= 2; sum |= shift & 0xfffc0000; shift <<= 2; sum |= shift & 0x0003fff0; shift = htobe32(vals[n++]) - 0x4e004e00; sum |= shift >> 26; *(uint32_t*)(buf+i) = be32toh(sum); sum = 0; shift <<= 6; sum |= shift & 0xffc00000; shift <<= 2; sum |= shift & 0x003fff00; *(uint32_t*)(buf+i+4) = be32toh(sum); } if(offset--) { // 这里有读取越界 #ifdef WORDS_BIGENDIAN register uint32_t sum = __builtin_bswap32(vals[n++]); #else register uint32_t sum = vals[n++]; #endif sum -= 0x0000004e; buf[i++] = ((sum & 0x0000003f) << 2) | ((sum & 0x0000c000) >> 14); if(offset--) { sum -= 0x004e0000; buf[i++] = ((sum & 0x00003f00) >> 6) | ((sum & 0x00300000) >> 20); if(offset--) { buf[i++] = ((sum & 0x000f0000) >> 12) | ((sum & 0xf0000000) >> 28); if(offset--) { buf[i] = (sum & 0x0f000000) >> 20; // 这里有读取越界 #ifdef WORDS_BIGENDIAN sum = __builtin_bswap32(vals[n]); #else sum = vals[n]; #endif sum -= 0x0000004e; buf[i++] |= (sum & 0x0000003c) >> 2; if(offset--) { buf[i++] = ((sum & 0x00000003) << 6) | ((sum & 0x0000fc00) >> 10); if(offset--) { sum -= 0x004e0000; buf[i] = ((sum & 0x00000300) >> 2) | ((sum & 0x003f0000) >> 16); } } } } } } return outlen; } base16384-2.2.5/base1464.c000066400000000000000000000135271447232655500144620ustar00rootroot00000000000000/* base1464.c * This file is part of the base16384 distribution (https://github.com/fumiama/base16384). * Copyright (c) 2022-2023 Fumiama Minamoto. * * 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 #include #include #ifdef __linux__ # include #endif #ifdef __FreeBSD__ # include #endif #ifdef __NetBSD__ # include #endif #ifdef __OpenBSD__ # include # define be16toh(x) betoh16(x) # define be32toh(x) betoh32(x) # define be64toh(x) betoh64(x) #endif #ifdef __APPLE__ # define be16toh(x) ntohs(x) # define be32toh(x) ntohl(x) # define be64toh(x) ntohll(x) # define htobe16(x) ntohs(x) # define htobe32(x) htonl(x) # define htobe64(x) htonll(x) #endif #ifdef _WIN64 #ifdef WORDS_BIGENDIAN # define be16toh(x) (x) # define be32toh(x) (x) # define be64toh(x) (x) # define htobe16(x) (x) # define htobe32(x) (x) # define htobe64(x) (x) #else # define be16toh(x) _byteswap_ushort(x) # define be32toh(x) _byteswap_ulong(x) # define be64toh(x) _byteswap_uint64(x) # define htobe16(x) _byteswap_ushort(x) # define htobe32(x) _byteswap_ulong(x) # define htobe64(x) _byteswap_uint64(x) #endif #endif // #define DEBUG int base16384_encode(const char* data, int dlen, char* buf) { int outlen = dlen / 7 * 8; int offset = dlen % 7; switch(offset) { // 算上偏移标志字符占用的2字节 case 0: break; case 1: outlen += 4; break; case 2: case 3: outlen += 6; break; case 4: case 5: outlen += 8; break; case 6: outlen += 10; break; default: break; } #ifdef DEBUG printf("outlen: %llu, offset: %u, malloc: %llu\n", outlen, offset, outlen + 8); #endif uint64_t* vals = (uint64_t*)buf; uint64_t n = 0; int64_t i = 0; for(; i <= dlen - 7; i += 7) { register uint64_t sum = 0; register uint64_t shift = htobe64(*(uint64_t*)(data+i))>>2; // 这里有读取越界 sum |= shift & 0x3fff000000000000; shift >>= 2; sum |= shift & 0x00003fff00000000; shift >>= 2; sum |= shift & 0x000000003fff0000; shift >>= 2; sum |= shift & 0x0000000000003fff; sum += 0x4e004e004e004e00; vals[n++] = be64toh(sum); #ifdef DEBUG printf("i: %llu, add sum: %016llx\n", i, sum); #endif } int o = offset; if(o--) { register uint64_t sum = 0x000000000000003f & (data[i] >> 2); sum |= ((uint64_t)data[i] << 14) & 0x000000000000c000; if(o--) { sum |= ((uint64_t)data[i + 1] << 6) & 0x0000000000003f00; sum |= ((uint64_t)data[i + 1] << 20) & 0x0000000000300000; if(o--) { sum |= ((uint64_t)data[i + 2] << 12) & 0x00000000000f0000; sum |= ((uint64_t)data[i + 2] << 28) & 0x00000000f0000000; if(o--) { sum |= ((uint64_t)data[i + 3] << 20) & 0x000000000f000000; sum |= ((uint64_t)data[i + 3] << 34) & 0x0000003c00000000; if(o--) { sum |= ((uint64_t)data[i + 4] << 26) & 0x0000000300000000; sum |= ((uint64_t)data[i + 4] << 42) & 0x0000fc0000000000; if(o--) { sum |= ((uint64_t)data[i + 5] << 34) & 0x0000030000000000; sum |= ((uint64_t)data[i + 5] << 48) & 0x003f000000000000; } } } } } sum += 0x004e004e004e004e; #ifdef WORDS_BIGENDIAN vals[n] = __builtin_bswap64(sum); #else vals[n] = sum; #endif #ifdef DEBUG printf("i: %llu, add sum: %016llx\n", i, sum); #endif buf[outlen - 2] = '='; buf[outlen - 1] = offset; } return outlen; } int base16384_decode(const char* data, int dlen, char* buf) { int outlen = dlen; int offset = 0; if(data[dlen-2] == '=') { offset = data[dlen-1]; switch(offset) { // 算上偏移标志字符占用的2字节 case 0: break; case 1: outlen -= 4; break; case 2: case 3: outlen -= 6; break; case 4: case 5: outlen -= 8; break; case 6: outlen -= 10; break; default: break; } } outlen = outlen / 8 * 7 + offset; uint64_t* vals = (uint64_t*)data; uint64_t n = 0; int64_t i = 0; for(; i <= outlen - 7; n++, i+=7) { register uint64_t sum = 0; register uint64_t shift = htobe64(vals[n]) - 0x4e004e004e004e00; shift <<= 2; sum |= shift & 0xfffc000000000000; shift <<= 2; sum |= shift & 0x0003fff000000000; shift <<= 2; sum |= shift & 0x0000000fffc00000; shift <<= 2; sum |= shift & 0x00000000003fff00; *(uint64_t*)(buf+i) = be64toh(sum); #ifdef DEBUG printf("i: %llu, add sum: %016llx\n", i, sum); #endif } if(offset--) { // 这里有读取越界 #ifdef WORDS_BIGENDIAN register uint64_t sum = __builtin_bswap64(vals[n]) - 0x000000000000004e; #else register uint64_t sum = vals[n] - 0x000000000000004e; #endif buf[i++] = ((sum & 0x000000000000003f) << 2) | ((sum & 0x000000000000c000) >> 14); if(offset--) { sum -= 0x00000000004e0000; buf[i++] = ((sum & 0x0000000000003f00) >> 6) | ((sum & 0x0000000000300000) >> 20); if(offset--) { buf[i++] = ((sum & 0x00000000000f0000) >> 12) | ((sum & 0x00000000f0000000) >> 28); if(offset--) { sum -= 0x0000004e00000000; buf[i++] = ((sum & 0x000000000f000000) >> 20) | ((sum & 0x0000003c00000000) >> 34); if(offset--) { buf[i++] = ((sum & 0x0000000300000000) >> 26) | ((sum & 0x0000fc0000000000) >> 42); if(offset--) { sum -= 0x004e000000000000; buf[i] = ((sum & 0x0000030000000000) >> 34) | ((sum & 0x003f000000000000) >> 48); } } } } } } return outlen; } base16384-2.2.5/base16384.1000066400000000000000000000043131447232655500144600ustar00rootroot00000000000000.TH BASE16384 1 "26 August 2023" "GNU" "User Commands" .SH NAME base16384 \- Encode binary files to printable utf16be .SH SYNOPSIS .B base16384 -[e|d|t] <\fIinputfile\fR> <\fIoutputfile\fR> .SH DESCRIPTION .LP There are .B 16384 Chinese characters ( from .B 4E00 to .B 8DFF ) as the .I "alphabet" , just like what base64 did. If length of the data has a remainder after mod 7, an unicode Chinese character .B 3Dxx will be appended to present it with .I xx ranging from .I 01 to .I 06 . .SH OPTIONS .sp 1 .TP 0.5i \fB\-e\fR Read data from \fIinputfile\fR and encode them into \fIoutputfile\fR. .TP 0.5i \fB\-d\fR Read data from \fIinputfile\fR and decode them into \fIoutputfile\fR. .TP 0.5i \fB\-t\fR Show spend time. .TP 0.5i \fBinputfile\fR An absolute or relative file path. Specially, pass - to read from stdin. .TP 0.5i \fBoutputfile\fR An absolute or relative file path. Specially, pass - to write to stdout. .SH "EXIT STATUS" .TP 0.5i \fB0\fR Exit on success. .TP 0.5i \fB1\fR Get file size error. .TP 0.5i \fB2\fR Fopen output file error. .TP 0.5i \fB3\fR Fopen input file error. .TP 0.5i \fB4\fR Write file error. .TP 0.5i \fB5\fR Open input file error. .TP 0.5i \fB6\fR Map input file error. .TP 0.5i \fB7\fR Write file error in mmap. .TP 0.5i \fB8\fR Invalid input/output filename. .SH "SEE ALSO" https://github.com/fumiama/base16384 .SH BUGS There are currently no known bugs in this application. If you have found them, please contact the .B author on github. .SH AUTHOR This manual page contributed by Fumiama Minamoto. .SH "COPYRIGHT" Copyright \(co 2022-2023, Fumiama Minamoto This file is part of .IR "base16384" . .LP Base16384 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. .LP Base16384 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. .LP You should have received a copy of the GNU General Public License along with this program. If not, see .IR http://www.gnu.org/licenses/ . base16384-2.2.5/base16384.c000066400000000000000000000062321447232655500145440ustar00rootroot00000000000000/* base16384.c * This file is part of the base16384 distribution (https://github.com/fumiama/base16384). * Copyright (c) 2022-2023 Fumiama Minamoto. * * 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 . */ #ifndef __cosmopolitan #include #include #include #include #ifdef _WIN32 #include #endif #endif #include "base16384.h" char encbuf[BASE16384_ENCBUFSZ]; char decbuf[BASE16384_DECBUFSZ]; #ifndef _WIN32 unsigned long get_start_ms() { struct timespec ts; clock_gettime(CLOCK_MONOTONIC, &ts); return (ts.tv_sec * 1000 + ts.tv_nsec / 1000000); } #endif static void print_usage() { puts("Copyright (c) 2022-2023 Fumiama Minamoto.\nBase16384 2.2.5 (August 26th 2023). Usage:"); puts("base16384 [-edt] [inputfile] [outputfile]"); puts(" -e\t\tencode"); puts(" -d\t\tdecode"); puts(" -t\t\tshow spend time"); puts(" inputfile\tpass - to read from stdin"); puts(" outputfile\tpass - to write to stdout"); } int main(int argc, char** argv) { if(argc != 4 || argv[1][0] != '-') { print_usage(); return -1; } int flaglen = strlen(argv[1]); if(flaglen <= 1 || flaglen > 3) { print_usage(); return -2; } #ifdef _WIN32 clock_t t = 0; #else unsigned long t = 0; #endif base16384_err_t exitstat = base16384_err_ok; char cmd = argv[1][1]; if(cmd == 't') { if(flaglen == 2) { print_usage(); return -3; } #ifdef _WIN32 t = clock(); #else t = get_start_ms(); #endif cmd = argv[1][2]; } else if(flaglen == 3) { if(argv[1][2] != 't') { print_usage(); return -4; } #ifdef _WIN32 t = clock(); #else t = get_start_ms(); #endif } switch(cmd) { case 'e': exitstat = base16384_encode_file(argv[2], argv[3], encbuf, decbuf); break; case 'd': exitstat = base16384_decode_file(argv[2], argv[3], encbuf, decbuf); break; default: print_usage(); return -5; } if(t && !exitstat && *(uint16_t*)(argv[3]) != *(uint16_t*)"-") { #ifdef _WIN32 printf("spend time: %lums\n", clock() - t); #else printf("spend time: %lums\n", get_start_ms() - t); #endif } #define print_base16384_err(n) case base16384_err_##n: perror("base16384_err_"#n); break if(exitstat) switch(exitstat) { print_base16384_err(get_file_size); print_base16384_err(fopen_output_file); print_base16384_err(fopen_input_file); print_base16384_err(write_file); print_base16384_err(open_input_file); print_base16384_err(map_input_file); print_base16384_err(read_file); print_base16384_err(invalid_file_name); default: perror("base16384"); break; } #undef print_base16384_err return exitstat; } base16384-2.2.5/base16384.h000066400000000000000000000103721447232655500145510ustar00rootroot00000000000000#ifndef _BASE16384_H_ #define _BASE16384_H_ /* base16384.h * This file is part of the base16384 distribution (https://github.com/fumiama/base16384). * Copyright (c) 2022-2023 Fumiama Minamoto. * * 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 . */ #ifndef __cosmopolitan #include #include #endif #define define_base16384_err_t(n) base16384_err_##n // base16384_err_t is the return value of base16384_en/decode_file enum base16384_err_t { define_base16384_err_t(ok), define_base16384_err_t(get_file_size), define_base16384_err_t(fopen_output_file), define_base16384_err_t(fopen_input_file), define_base16384_err_t(write_file), define_base16384_err_t(open_input_file), define_base16384_err_t(map_input_file), define_base16384_err_t(read_file), define_base16384_err_t(invalid_file_name), }; // base16384_err_t is the return value of base16384_en/decode_file typedef enum base16384_err_t base16384_err_t; #undef define_base16384_err_t #define BASE16384_ENCBUFSZ (BUFSIZ*1024/7*7+7) #define BASE16384_DECBUFSZ (BUFSIZ*1024/8*8+16) // base16384_encode_len calc min buf size to fill encode result static inline int base16384_encode_len(int dlen) { int outlen = dlen / 7 * 8; int offset = dlen % 7; switch(offset) { // 算上偏移标志字符占用的2字节 case 0: break; case 1: outlen += 4; break; case 2: case 3: outlen += 6; break; case 4: case 5: outlen += 8; break; case 6: outlen += 10; break; default: break; } return outlen + 8; // 冗余的8B用于可能的结尾的覆盖 } // base16384_decode_len calc min buf size to fill decode result static inline int base16384_decode_len(int dlen, int offset) { int outlen = dlen; switch(offset) { // 算上偏移标志字符占用的2字节 case 0: break; case 1: outlen -= 4; break; case 2: case 3: outlen -= 6; break; case 4: case 5: outlen -= 8; break; case 6: outlen -= 10; break; default: break; } return outlen / 8 * 7 + offset + 1; // 多出1字节用于循环覆盖 } // base16384_encode encodes data and write result into buf int base16384_encode(const char* data, int dlen, char* buf); // base16384_decode decodes data and write result into buf int base16384_decode(const char* data, int dlen, char* buf); // base16384_encode_file encodes input file to output file. // use `-` to specify stdin/stdout // encbuf & decbuf must be no less than BASE16384_ENCBUFSZ & BASE16384_DECBUFSZ base16384_err_t base16384_encode_file(const char* input, const char* output, char* encbuf, char* decbuf); // base16384_encode_fp encodes input file to output file. // encbuf & decbuf must be no less than BASE16384_ENCBUFSZ & BASE16384_DECBUFSZ base16384_err_t base16384_encode_fp(FILE* input, FILE* output, char* encbuf, char* decbuf); // base16384_encode_fd encodes input fd to output fd. // encbuf & decbuf must be no less than BASE16384_ENCBUFSZ & BASE16384_DECBUFSZ base16384_err_t base16384_encode_fd(int input, int output, char* encbuf, char* decbuf); // base16384_decode_file decodes input file to output file. // use `-` to specify stdin/stdout // encbuf & decbuf must be no less than BASE16384_ENCBUFSZ & BASE16384_DECBUFSZ base16384_err_t base16384_decode_file(const char* input, const char* output, char* encbuf, char* decbuf); // base16384_decode_fp decodes input file to output file. // encbuf & decbuf must be no less than BASE16384_ENCBUFSZ & BASE16384_DECBUFSZ base16384_err_t base16384_decode_fp(FILE* input, FILE* output, char* encbuf, char* decbuf); // base16384_decode_fd decodes input fd to output fd. // encbuf & decbuf must be no less than BASE16384_ENCBUFSZ & BASE16384_DECBUFSZ base16384_err_t base16384_decode_fd(int input, int output, char* encbuf, char* decbuf); #endif base16384-2.2.5/file.c000066400000000000000000000176721447232655500141550ustar00rootroot00000000000000/* file.c * This file is part of the base16384 distribution (https://github.com/fumiama/base16384). * Copyright (c) 2022-2023 Fumiama Minamoto. * * 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 . */ #ifndef __cosmopolitan #include #include #include #include #include #include #ifdef _WIN32 #include #include #include #else #include #include #endif #endif #include "base16384.h" #ifdef __cosmopolitan #define get_file_size(filepath) ((off_t)GetFileSize(filepath)) #else static inline off_t get_file_size(const char* filepath) { struct stat statbuf; return stat(filepath, &statbuf)?-1:statbuf.st_size; } #endif #define is_standard_io(filename) (*(uint16_t*)(filename) == *(uint16_t*)"-") base16384_err_t base16384_encode_file(const char* input, const char* output, char* encbuf, char* decbuf) { off_t inputsize; FILE* fp = NULL; FILE* fpo; if(!input || !output || strlen(input) <= 0 || strlen(output) <= 0) return base16384_err_invalid_file_name; if(is_standard_io(input)) { // read from stdin inputsize = 0; fp = stdin; } else inputsize = get_file_size(input); if(inputsize < 0) { return base16384_err_get_file_size; } fpo = is_standard_io(output)?stdout:fopen(output, "wb"); if(!fpo) { return base16384_err_fopen_output_file; } if(!inputsize || inputsize > BASE16384_ENCBUFSZ) { // stdin or big file, use encbuf & fread inputsize = BASE16384_ENCBUFSZ-7; #if defined _WIN32 || defined __cosmopolitan } #endif if(!fp) fp = fopen(input, "rb"); if(!fp) { return base16384_err_fopen_input_file; } size_t cnt = 0; fputc(0xFE, fpo); fputc(0xFF, fpo); while((cnt = fread(encbuf, sizeof(char), inputsize, fp)) > 0) { int n = base16384_encode(encbuf, cnt, decbuf); if(fwrite(decbuf, n, 1, fpo) <= 0) { return base16384_err_write_file; } } if(!is_standard_io(output)) fclose(fpo); if(!is_standard_io(input)) fclose(fp); #if !defined _WIN32 && !defined __cosmopolitan } else { // small file, use mmap & fwrite int fd = open(input, O_RDONLY); if(fd < 0) { return base16384_err_open_input_file; } char *input_file = mmap(NULL, (size_t)inputsize+16, PROT_READ, MAP_PRIVATE, fd, 0); if(input_file == MAP_FAILED) { return base16384_err_map_input_file; } fputc(0xFE, fpo); fputc(0xFF, fpo); int n = base16384_encode(input_file, (int)inputsize, decbuf); if(fwrite(decbuf, n, 1, fpo) <= 0) { return base16384_err_write_file; } munmap(input_file, (size_t)inputsize); if(!is_standard_io(output)) fclose(fpo); close(fd); } #endif return base16384_err_ok; } base16384_err_t base16384_encode_fp(FILE* input, FILE* output, char* encbuf, char* decbuf) { if(!input) { return base16384_err_fopen_input_file; } if(!output) { return base16384_err_fopen_output_file; } off_t inputsize = BASE16384_ENCBUFSZ-7; size_t cnt = 0; fputc(0xFE, output); fputc(0xFF, output); while((cnt = fread(encbuf, sizeof(char), inputsize, input)) > 0) { int n = base16384_encode(encbuf, cnt, decbuf); if(fwrite(decbuf, n, 1, output) <= 0) { return base16384_err_write_file; } } return base16384_err_ok; } base16384_err_t base16384_encode_fd(int input, int output, char* encbuf, char* decbuf) { if(input < 0) { return base16384_err_fopen_input_file; } if(output < 0) { return base16384_err_fopen_output_file; } off_t inputsize = BASE16384_ENCBUFSZ-7; size_t cnt = 0; write(output, "\xfe\xff", 2); while((cnt = read(input, encbuf, inputsize)) > 0) { int n = base16384_encode(encbuf, cnt, decbuf); if(write(output, decbuf, n) < n) { return base16384_err_write_file; } } return base16384_err_ok; } #define rm_head(fp) {\ int ch = fgetc(fp);\ if(ch == 0xFE) fgetc(fp);\ else ungetc(ch, fp);\ } #define skip_offset(input_file) ((input_file[0]==(char)0xFE)?2:0) static inline int is_next_end(FILE* fp) { int ch = fgetc(fp); if(ch == EOF) return 0; if(ch == '=') return fgetc(fp); ungetc(ch, fp); return 0; } base16384_err_t base16384_decode_file(const char* input, const char* output, char* encbuf, char* decbuf) { off_t inputsize; FILE* fp = NULL; FILE* fpo; if(!input || !output || strlen(input) <= 0 || strlen(output) <= 0) return base16384_err_invalid_file_name; if(is_standard_io(input)) { // read from stdin inputsize = 0; fp = stdin; } else inputsize = get_file_size(input); if(inputsize < 0) { return base16384_err_get_file_size; } fpo = is_standard_io(output)?stdout:fopen(output, "wb"); if(!fpo) { return base16384_err_fopen_output_file; } if(!inputsize || inputsize > BASE16384_DECBUFSZ) { // stdin or big file, use decbuf & fread inputsize = BASE16384_DECBUFSZ/8*8; #if defined _WIN32 || defined __cosmopolitan } #endif if(!fp) fp = fopen(input, "rb"); if(!fp) { return base16384_err_fopen_input_file; } int cnt = 0; int end = 0; rm_head(fp); while((cnt = fread(decbuf, sizeof(char), inputsize, fp)) > 0) { if((end = is_next_end(fp))) { decbuf[cnt++] = '='; decbuf[cnt++] = end; } if(fwrite(encbuf, base16384_decode(decbuf, cnt, encbuf), 1, fpo) <= 0) { return base16384_err_write_file; } } if(!is_standard_io(output)) fclose(fpo); if(!is_standard_io(input)) fclose(fp); #if !defined _WIN32 && !defined __cosmopolitan } else { // small file, use mmap & fwrite int fd = open(input, O_RDONLY); if(fd < 0) { return base16384_err_open_input_file; } char *input_file = mmap(NULL, (size_t)inputsize+16, PROT_READ, MAP_PRIVATE, fd, 0); if(input_file == MAP_FAILED) { return base16384_err_map_input_file; } int off = skip_offset(input_file); if(fwrite(encbuf, base16384_decode(input_file+off, inputsize-off, encbuf), 1, fpo) <= 0) { return base16384_err_write_file; } munmap(input_file, (size_t)inputsize); if(!is_standard_io(output)) fclose(fpo); close(fd); } #endif return base16384_err_ok; } base16384_err_t base16384_decode_fp(FILE* input, FILE* output, char* encbuf, char* decbuf) { if(!input) { return base16384_err_fopen_input_file; } if(!output) { return base16384_err_fopen_output_file; } off_t inputsize = BASE16384_DECBUFSZ/8*8; int cnt = 0; int end = 0; rm_head(input); while((cnt = fread(decbuf, sizeof(char), inputsize, input)) > 0) { if((end = is_next_end(input))) { decbuf[cnt++] = '='; decbuf[cnt++] = end; } if(fwrite(encbuf, base16384_decode(decbuf, cnt, encbuf), 1, output) <= 0) { return base16384_err_write_file; } } return base16384_err_ok; } static inline int is_next_end_fd(int fd) { char ch = 0; read(fd, &ch, 1); if(ch == '=') { read(fd, &ch, 1); } return (int)ch; } base16384_err_t base16384_decode_fd(int input, int output, char* encbuf, char* decbuf) { if(input < 0) { return base16384_err_fopen_input_file; } if(output < 0) { return base16384_err_fopen_output_file; } off_t inputsize = BASE16384_DECBUFSZ/8*8; int cnt = 0; int end = 0; decbuf[0] = 0; if(read(input, decbuf, 2) < 2) { return base16384_err_read_file; } if(decbuf[0] != (char)(0xfe)) cnt = 2; while((end = read(input, decbuf+cnt, inputsize-cnt)) > 0 || cnt > 0) { if(end > 0) { cnt += end; if((end = is_next_end_fd(input))) { decbuf[cnt++] = '='; decbuf[cnt++] = end; end = 0; } else end = 1; } else end = 0; cnt = base16384_decode(decbuf, cnt, encbuf); if(write(output, encbuf, cnt) < cnt) { return base16384_err_write_file; } cnt = end; } return base16384_err_ok; }