From 1cccc911ce3a88e9d24882ced2c597ec4e0dab20 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=BA=90=E6=96=87=E9=9B=A8?= <41315874+fumiama@users.noreply.github.com> Date: Fri, 3 Jun 2022 11:46:55 +0800 Subject: [PATCH] add v1 branch --- CMakeLists.txt | 33 -- LICENSE | 695 +-------------------------- traditional_ver/Makefile => Makefile | 0 README.md | 73 +-- base1432.c | 196 -------- base1464.c | 187 ------- base16384.1 | 86 ---- base16384.c | 312 ++++-------- base16384.h | 45 -- traditional_ver/bitio.c => bitio.c | 0 traditional_ver/bitio.h => bitio.h | 0 traditional_ver/README.md | 22 - traditional_ver/base16384.c | 99 ---- 13 files changed, 127 insertions(+), 1621 deletions(-) delete mode 100644 CMakeLists.txt rename traditional_ver/Makefile => Makefile (100%) delete mode 100644 base1432.c delete mode 100644 base1464.c delete mode 100644 base16384.1 delete mode 100644 base16384.h rename traditional_ver/bitio.c => bitio.c (100%) rename traditional_ver/bitio.h => bitio.h (100%) delete mode 100644 traditional_ver/README.md delete mode 100644 traditional_ver/base16384.c diff --git a/CMakeLists.txt b/CMakeLists.txt deleted file mode 100644 index 71422b8..0000000 --- a/CMakeLists.txt +++ /dev/null @@ -1,33 +0,0 @@ -cmake_minimum_required(VERSION 3.0.0) -project(base16384 VERSION 2.2.0) -SET(CMAKE_BUILD_TYPE "Release") - -add_executable(base16384 base16384.c) - -include(TestBigEndian) -test_big_endian(isBigEndian) -if (${isBigEndian}) - add_definitions(-DWORDS_BIGENDIAN) -endif() - -IF(NOT (CMAKE_SYSTEM_NAME MATCHES "Darwin")) - add_compile_options("-lc") -ENDIF() - -IF(CMAKE_SIZEOF_VOID_P EQUAL 8) - add_library(libbase16384 SHARED base1464.c) -ELSE() - add_library(libbase16384 SHARED base1432.c) -ENDIF() - -set_target_properties(libbase16384 PROPERTIES - OUTPUT_NAME base16384 - VERSION 2.2.0 - ) - -target_link_libraries(base16384 libbase16384) - -INSTALL(TARGETS base16384 RUNTIME DESTINATION bin) -INSTALL(TARGETS libbase16384 LIBRARY DESTINATION lib) -INSTALL(FILES base16384.h DESTINATION include) -INSTALL(FILES base16384.1 DESTINATION share/man/man1) \ No newline at end of file diff --git a/LICENSE b/LICENSE index f288702..ff183c0 100644 --- a/LICENSE +++ b/LICENSE @@ -1,674 +1,21 @@ - GNU GENERAL PUBLIC LICENSE - Version 3, 29 June 2007 - - Copyright (C) 2007 Free Software Foundation, Inc. - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The GNU General Public License is a free, copyleft license for -software and other kinds of works. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. 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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 -. +MIT License + +Copyright (c) 2021 源文雨 + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/traditional_ver/Makefile b/Makefile similarity index 100% rename from traditional_ver/Makefile rename to Makefile diff --git a/README.md b/README.md index 05d3ceb..84f899b 100644 --- a/README.md +++ b/README.md @@ -1,69 +1,22 @@ # base16384 -> **Note**: This project used the awesome cross-patfrom binary compiling tool [cosmopolitan](https://github.com/jart/cosmopolitan) +Encode binary file to readable utf16be. -Encode binary file to printable utf16be, and vise versa. - -## Description 说明 +# 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。 +使用16384个汉字作为字符表,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。 +另外,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. +# Benefits 优点 +Save more space and since the code 0x0000 is encoded to "一", finding zero space seems to be easier.
+节省更多空间。
+更容易发现二进制文件的规律。 -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 my PPA in Ubuntu 直接安装 -```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 .. -make -make 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: -[e|d] - -e encode - -d decode - pass - to read from stdin - pass - to write to stdout -``` - -## Examples 用例 -The text below is the encoding of the base16384.exe itself(MacOS Mojave version). It is clear to see the strucutre of the binary file. - -下面的文本是使用base16384程序编码自身(MacOS Mojave版本)的结果。可见文件结构十分清晰。 - 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\ No newline at end of file +# Examples 用例 +The text below is the encoding of the base16384.exe itself(MacOS Mojave version). It is clear to see the strucutre of the binary file.
+下面的文本是使用base16384程序编码自身(MacOS Mojave版本)的结果。可见文件结构十分清晰。
+
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\ No newline at end of file diff --git a/base1432.c b/base1432.c deleted file mode 100644 index d4c9063..0000000 --- a/base1432.c +++ /dev/null @@ -1,196 +0,0 @@ -// base1432.c -// fumiama 20220319 -#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 __MAC_10_0 -# 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 encode(const char* data, int dlen, char* buf, int blen) { - 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 decode(const char* data, int dlen, char* buf, int blen) { - 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 - sum = vals[n]; - 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; -} diff --git a/base1464.c b/base1464.c deleted file mode 100644 index 7aa180f..0000000 --- a/base1464.c +++ /dev/null @@ -1,187 +0,0 @@ -// base1464.c -// fumiama 20211029 -#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 __MAC_10_0 -# 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 encode(const char* data, int dlen, char* buf, int blen) { - 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 decode(const char* data, int dlen, char* buf, int blen) { - 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; -} diff --git a/base16384.1 b/base16384.1 deleted file mode 100644 index 394876c..0000000 --- a/base16384.1 +++ /dev/null @@ -1,86 +0,0 @@ -.TH BASE16384 1 "27 April 2022" "GNU" "User Commands" -.SH NAME -base16384 \- Encode binary files to printable utf16be -.SH SYNOPSIS -.B base16384 --[e|d] <\fIinputfile\fR> <\fIoutputfile\fR> -.SH DESCRIPTION -.LP -There are -.B 16384 -Chinese characters ( from -.B 4E00 -to -.B 8DFF -) being selected 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 -\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. -.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. -.SH "COPYRIGHT" -Copyright \(co 2022, 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/ . diff --git a/base16384.c b/base16384.c index d901dd0..687226b 100644 --- a/base16384.c +++ b/base16384.c @@ -1,225 +1,99 @@ -#ifndef __cosmopolitan +//base16384.c +//MIT fumiama 20200416 #include -#include #include -#include -#include -#include -#ifdef _WIN32 - #include -#else - #include -#endif -#endif -#include "base16384.h" +#include "bitio.h" -#ifdef __cosmopolitan -#define get_file_size(filepath) ((off_t)GetFileSize(filepath)) -#else -static off_t get_file_size(const char* filepath) { - struct stat statbuf; - return stat(filepath, &statbuf)?-1:statbuf.st_size; -} -#endif +#define HEAD 0x4E +BIT outbuf; +unsigned char buf[BUFSIZ/8*8+2]; -char encbuf[BUFSIZ*1024/7*7]; -char decbuf[BUFSIZ*1024/8*8+2]; - -static int encode_file(const char* input, const char* output) { - off_t inputsize; - FILE* fp = NULL; - FILE* fpo; - if(*(uint16_t*)input == *(uint16_t*)"-") { // read from stdin - inputsize = 0; - fp = stdin; - } else inputsize = get_file_size(input); - if(inputsize < 0) { - perror("Get file size error"); - return 1; - } - fpo = (*(uint16_t*)output == *(uint16_t*)"-")?stdout:fopen(output, "wb"); - if(!fpo) { - perror("Fopen output file error"); - return 2; - } - if(!inputsize || inputsize > BUFSIZ*1024) { // stdin or big file, use encbuf & fread - inputsize = BUFSIZ*1024/7*7; - #ifdef _WIN32 - } - #endif - if(!fp) fp = fopen(input, "rb"); - if(!fp) { - perror("Fopen input file error"); - return 3; - } - - int outputsize = encode_len(inputsize)+16; - size_t cnt = 0; - fputc(0xFE, fpo); - fputc(0xFF, fpo); - while((cnt = fread(encbuf, sizeof(char), inputsize, fp))) { - int n = encode(encbuf, cnt, decbuf, outputsize); - if(fwrite(decbuf, n, 1, fpo) <= 0) { - perror("Write file error"); - return 4; - } - } - /* 由操作系统负责释放资源 - fclose(fpo); - fclose(fp); - 以缩短程序运行时间 */ - #ifndef _WIN32 - } else { // small file, use mmap & fwrite - int fd = open(input, O_RDONLY); - if(fd <= 0) { - perror("Open input file error"); - return 5; - } - char *input_file = mmap(NULL, (size_t)inputsize, PROT_READ, MAP_PRIVATE, fd, 0); - if(input_file == MAP_FAILED) { - perror("Map input file error"); - return 6; - } - int outputsize = encode_len(inputsize)+16; - fputc(0xFE, fpo); - fputc(0xFF, fpo); - int n = encode(input_file, (int)inputsize, decbuf, outputsize); - if(fwrite(decbuf, n, 1, fpo) <= 0) { - perror("Write file error"); - return 7; - } - munmap(input_file, (size_t)inputsize); - /* 由操作系统负责释放资源 - fclose(fpo); - close(fd); - 以缩短程序运行时间 */ - } - #endif - return 0; -} - -#define rm_head(fp) {\ - int ch = fgetc(fp);\ - if(ch == 0xFE) fgetc(fp);\ - else rewind(fp);\ -} - -#define skip_offset(input_file) ((input_file[0]==(char)0xFE)?2:0) - -static int is_next_end(FILE* fp) { - int ch = fgetc(fp); - if(ch == '=') return fgetc(fp); - ungetc(ch, fp); - return 0; -} - -static int decode_file(const char* input, const char* output) { - off_t inputsize; - FILE* fp = NULL; - FILE* fpo; - if(*(uint16_t*)input == *(uint16_t*)"-") { // read from stdin - inputsize = 0; - fp = stdin; - } else inputsize = get_file_size(input); - if(inputsize < 0) { - perror("Get file size error"); - return 1; - } - fpo = (*(uint16_t*)output == *(uint16_t*)"-")?stdout:fopen(output, "wb"); - if(!fpo) { - perror("Fopen output file error"); - return 2; - } - if(!inputsize || inputsize > BUFSIZ*1024) { // stdin or big file, use decbuf & fread - inputsize = BUFSIZ*1024/8*8; - #ifdef _WIN32 - } - #endif - if(!fp) fp = fopen(input, "rb"); - if(!fp) { - perror("Fopen input file error"); - return 3; - } - int outputsize = decode_len(inputsize, 0)+16; - int cnt = 0; - int end = 0; - rm_head(fp); - while((cnt = fread(decbuf, sizeof(char), inputsize, fp))) { - if((end = is_next_end(fp))) { - decbuf[cnt++] = '='; - decbuf[cnt++] = end; - } - if(fwrite(encbuf, decode(decbuf, cnt, encbuf, outputsize), 1, fpo) <= 0) { - perror("Write file error"); - return 4; - } - } - /* 由操作系统负责释放资源 - fclose(fpo); - fclose(fp); - 以缩短程序运行时间 */ - #ifndef _WIN32 - } else { // small file, use mmap & fwrite - int fd = open(input, O_RDONLY); - if(fd <= 0) { - perror("Open input file error"); - return 5; - } - char *input_file = mmap(NULL, (size_t)inputsize, PROT_READ, MAP_PRIVATE, fd, 0); - if(input_file == MAP_FAILED) { - perror("Map input file error"); - return 6; - } - int outputsize = decode_len(inputsize, 0)+16; - int off = skip_offset(input_file); - if(fwrite(encbuf, decode(input_file+off, inputsize-off, encbuf, outputsize), 1, fpo) <= 0) { - perror("Write file error"); - return 7; - } - munmap(input_file, (size_t)inputsize); - /* 由操作系统负责释放资源 - fclose(fpo); - close(fd); - 以缩短程序运行时间 */ - } - #endif - return 0; -} - -#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 - -int main(int argc, char** argv) { - if(argc != 4) { - puts("Usage: -[e|d] "); - puts("\t-e encode"); - puts("\t-d decode"); - puts("\t pass - to read from stdin"); - puts("\t pass - to write to stdout"); - exit(EXIT_SUCCESS); +static void push(int istrue, FILE *fpo, int offset){ + if(!~pushbit(&outbuf, istrue)){ + if(offset) for(int i = 0; i < BITBUFSIZE; i += 2) outbuf.b[i] += offset; + fwrite(outbuf.b, sizeof(char), BITBUFSIZE, fpo); + outbuf.p = 0; + pushbit(&outbuf, istrue); } - #ifdef _WIN32 - clock_t t = clock(); - #else - unsigned long t = get_start_ms(); - #endif - int exitstat = 0; - switch(argv[1][1]) { - case 'e': exitstat = encode_file(argv[2], argv[3]); break; - case 'd': exitstat = decode_file(argv[2], argv[3]); break; - default: break; - } - if(!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 - } - return exitstat; +} + +static void encode(FILE *fp, FILE *fpo){ + int cnt, prevcnt; + + fputc(0xFE, fpo); + fputc(0xFF, fpo); + while((cnt = fread(buf, sizeof(char), BUFSIZ/7*7, fp))){ + prevcnt = cnt; + for(int i = 0; i < cnt * 8; i++){ + if(!(outbuf.p % 16)){ + push(0, fpo, HEAD); + push(0, fpo, HEAD); + } + push(buf[i / 8] & (128u >> (i % 8)), fpo, HEAD); + } + } + if(outbuf.p){ + outbuf.b[outbuf.p / 8] &= ~(255u >> outbuf.p % 8); + for(int i = 0; i < outbuf.p / 8 + 1; i += 2) outbuf.b[i] += HEAD; + fwrite(outbuf.b, sizeof(char), (outbuf.p % 8)?outbuf.p / 8 + 1:outbuf.p / 8 , fpo); + if(((outbuf.p % 8)?outbuf.p / 8 + 1:outbuf.p / 8) % 2) fputc(0, fpo); + if(outbuf.p % 16) { + fputc('=', fpo); + fputc(prevcnt%7, fpo); + } + } +} + +static uint8_t map[] = {0, 6, 12, 4, 10, 2, 8}; + +static void decode(FILE *fp, FILE *fpo){ + int cnt; + int cnt8; + while((cnt = fread(buf, sizeof(char), BUFSIZ/8*8, fp))){ + cnt8 = cnt * 8; + if(buf[cnt-2] == '=') { + cnt8 -= 2*8 + map[buf[cnt-1]&7]; + } else if(cnt == BUFSIZ && !feof(fp)) { + int ch; + if((ch=fgetc(fp)) != '=') ungetc(ch, fp); + else cnt8 -= map[fgetc(fp)&7]; + } + for(int i = ((buf[0] == 0xFE)?16:0); i < cnt8; i++){ + if(!(i % 16)){ + buf[i / 8] -= HEAD; + i += 2; + } + push(buf[i / 8] & (128u >> (i % 8)), fpo, 0); + } + } + if(outbuf.p) fwrite(outbuf.b, sizeof(char), (outbuf.p % 8)?outbuf.p / 8 + 1:outbuf.p / 8, fpo); +} + +#define CHOICE argv[1][1] +#define READ argv[2] +#define WRITE argv[3] + +int main(int argc, char **argv){ + FILE *fp = NULL; + FILE *fpo = NULL; + + if(argc != 4){ + fputs("Usage: -[e|d] inputfile outputfile\n", stderr); + fputs(" -e encode\n", stderr); + fputs(" -d decode\n", stderr); + exit(EXIT_FAILURE); + } + + fp = fopen(READ, "rb"); + fpo = fopen(WRITE, "wb"); + if(!fp || !fpo){ + fputs("IO error!", stderr); + exit(EXIT_FAILURE); + } + switch(CHOICE){ + case 'e': encode(fp, fpo); break; + case 'd': decode(fp, fpo); break; + default: break; + } + return 0; } diff --git a/base16384.h b/base16384.h deleted file mode 100644 index 45d8e94..0000000 --- a/base16384.h +++ /dev/null @@ -1,45 +0,0 @@ -#ifndef _BASE14_H_ -#define _BASE14_H_ - -// base14.h -// fumiama 20220319 - -// encode_len calc min buf size to fill encode result -int 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 -} - -// decode_len calc min buf size to fill decode result -int 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 -} - -// encode data and write result into buf -int encode(const char* data, int dlen, char* buf, int blen); -// decode data and write result into buf -int decode(const char* data, int dlen, char* buf, int blen); - -#endif \ No newline at end of file diff --git a/traditional_ver/bitio.c b/bitio.c similarity index 100% rename from traditional_ver/bitio.c rename to bitio.c diff --git a/traditional_ver/bitio.h b/bitio.h similarity index 100% rename from traditional_ver/bitio.h rename to bitio.h diff --git a/traditional_ver/README.md b/traditional_ver/README.md deleted file mode 100644 index 84f899b..0000000 --- a/traditional_ver/README.md +++ /dev/null @@ -1,22 +0,0 @@ -# base16384 -Encode binary file to readable utf16be. - -# 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. - -另外,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.
-节省更多空间。
-更容易发现二进制文件的规律。 - -# Examples 用例 -The text below is the encoding of the base16384.exe itself(MacOS Mojave version). It is clear to see the strucutre of the binary file.
-下面的文本是使用base16384程序编码自身(MacOS Mojave版本)的结果。可见文件结构十分清晰。
-
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\ No newline at end of file diff --git a/traditional_ver/base16384.c b/traditional_ver/base16384.c deleted file mode 100644 index 687226b..0000000 --- a/traditional_ver/base16384.c +++ /dev/null @@ -1,99 +0,0 @@ -//base16384.c -//MIT fumiama 20200416 -#include -#include -#include "bitio.h" - -#define HEAD 0x4E -BIT outbuf; -unsigned char buf[BUFSIZ/8*8+2]; - -static void push(int istrue, FILE *fpo, int offset){ - if(!~pushbit(&outbuf, istrue)){ - if(offset) for(int i = 0; i < BITBUFSIZE; i += 2) outbuf.b[i] += offset; - fwrite(outbuf.b, sizeof(char), BITBUFSIZE, fpo); - outbuf.p = 0; - pushbit(&outbuf, istrue); - } -} - -static void encode(FILE *fp, FILE *fpo){ - int cnt, prevcnt; - - fputc(0xFE, fpo); - fputc(0xFF, fpo); - while((cnt = fread(buf, sizeof(char), BUFSIZ/7*7, fp))){ - prevcnt = cnt; - for(int i = 0; i < cnt * 8; i++){ - if(!(outbuf.p % 16)){ - push(0, fpo, HEAD); - push(0, fpo, HEAD); - } - push(buf[i / 8] & (128u >> (i % 8)), fpo, HEAD); - } - } - if(outbuf.p){ - outbuf.b[outbuf.p / 8] &= ~(255u >> outbuf.p % 8); - for(int i = 0; i < outbuf.p / 8 + 1; i += 2) outbuf.b[i] += HEAD; - fwrite(outbuf.b, sizeof(char), (outbuf.p % 8)?outbuf.p / 8 + 1:outbuf.p / 8 , fpo); - if(((outbuf.p % 8)?outbuf.p / 8 + 1:outbuf.p / 8) % 2) fputc(0, fpo); - if(outbuf.p % 16) { - fputc('=', fpo); - fputc(prevcnt%7, fpo); - } - } -} - -static uint8_t map[] = {0, 6, 12, 4, 10, 2, 8}; - -static void decode(FILE *fp, FILE *fpo){ - int cnt; - int cnt8; - while((cnt = fread(buf, sizeof(char), BUFSIZ/8*8, fp))){ - cnt8 = cnt * 8; - if(buf[cnt-2] == '=') { - cnt8 -= 2*8 + map[buf[cnt-1]&7]; - } else if(cnt == BUFSIZ && !feof(fp)) { - int ch; - if((ch=fgetc(fp)) != '=') ungetc(ch, fp); - else cnt8 -= map[fgetc(fp)&7]; - } - for(int i = ((buf[0] == 0xFE)?16:0); i < cnt8; i++){ - if(!(i % 16)){ - buf[i / 8] -= HEAD; - i += 2; - } - push(buf[i / 8] & (128u >> (i % 8)), fpo, 0); - } - } - if(outbuf.p) fwrite(outbuf.b, sizeof(char), (outbuf.p % 8)?outbuf.p / 8 + 1:outbuf.p / 8, fpo); -} - -#define CHOICE argv[1][1] -#define READ argv[2] -#define WRITE argv[3] - -int main(int argc, char **argv){ - FILE *fp = NULL; - FILE *fpo = NULL; - - if(argc != 4){ - fputs("Usage: -[e|d] inputfile outputfile\n", stderr); - fputs(" -e encode\n", stderr); - fputs(" -d decode\n", stderr); - exit(EXIT_FAILURE); - } - - fp = fopen(READ, "rb"); - fpo = fopen(WRITE, "wb"); - if(!fp || !fpo){ - fputs("IO error!", stderr); - exit(EXIT_FAILURE); - } - switch(CHOICE){ - case 'e': encode(fp, fpo); break; - case 'd': decode(fp, fpo); break; - default: break; - } - return 0; -}