diff --git a/CMakeLists.txt b/CMakeLists.txt
index f75817f..6fdd0ff 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,31 +1,50 @@
cmake_minimum_required(VERSION 2.8.12)
if (POLICY CMP0048)
- cmake_policy(SET CMP0048 NEW)
+ cmake_policy(SET CMP0048 NEW)
endif (POLICY CMP0048)
-project(base16384 VERSION 2.2.5)
+project(base16384 VERSION 2.3.0)
+
+add_definitions(-DBASE16384_VERSION="${PROJECT_VERSION}")
+add_definitions(-DBASE16384_VERSION_DATE="April 5th 2024")
+
+message(STATUS "Testing endian...")
+include(TestBigEndian)
+test_big_endian(isBigEndian)
+message(STATUS "Is big endian: ${isBigEndian}.")
+if (${isBigEndian})
+ add_definitions(-DWORDS_BIGENDIAN)
+endif ()
+
+if (BUILD STREQUAL "test")
+ add_definitions(-DBASE16384_BUFSZ_FACTOR=1)
+endif ()
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()
+IF ((NOT FORCE_32BIT) AND CMAKE_SIZEOF_VOID_P EQUAL 8)
+ message(STATUS "Adding 64bit libraries...")
+ add_definitions(-DIS_64BIT_PROCESSOR)
+ add_library(base16384 SHARED wrap.c file.c base1464.c)
+ add_library(base16384_s STATIC wrap.c file.c base1464.c)
+ELSE ()
+ message(STATUS "Adding 32bit libraries...")
+ add_library(base16384 SHARED wrap.c file.c base1432.c)
+ add_library(base16384_s STATIC wrap.c 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})
+message(STATUS "Linking libraries...")
target_link_libraries(base16384_b base16384_s)
+if (BUILD STREQUAL "test")
+ message(STATUS "Building test...")
+ enable_testing()
+ add_subdirectory(test)
+endif ()
+
INSTALL(TARGETS base16384_b RUNTIME DESTINATION bin)
INSTALL(TARGETS base16384 LIBRARY DESTINATION lib)
INSTALL(TARGETS base16384_s ARCHIVE DESTINATION lib)
diff --git a/README.md b/README.md
index e6bbd8b..32f9ee9 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,9 @@
Encode binary file to printable utf16be, and vice 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。
@@ -14,31 +16,38 @@ If length of the data has a remainder after moduled by 7, we will use \u3Dxx to
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
+## 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
+## Usage
+> 用法
-### Install from Debian Bookworm or higher 从 Debian Bookworm 或更高版本安装
+### 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
+### 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
+### 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
+### Build from source code
+> 编译
Clone this repo first.
@@ -67,33 +76,39 @@ Now you can encode/decode a file by commands below.
```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
+base16384 [-edtn] [inputfile] [outputfile]
+ -e encode (default)
+ -d decode
+ -t show spend time
+ -n don't write utf16be file header (0xFEFF)
+ -c embed or validate checksum in remainder
+ 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
+## 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
-```
+ ```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
+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
-```
+ ```bash
+ echo -n "婌焳廔萷" | iconv -f utf-8 -t utf-16be | base16384 -d - -
+ 1234567
+ ```
-3. Encode file 编码文件
+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.
+ 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。
+ 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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+ 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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
diff --git a/base1432.c b/base1432.c
index ac09987..9089ab0 100644
--- a/base1432.c
+++ b/base1432.c
@@ -1,6 +1,6 @@
/* base1432.c
* This file is part of the base16384 distribution (https://github.com/fumiama/base16384).
- * Copyright (c) 2022-2023 Fumiama Minamoto.
+ * Copyright (c) 2022-2024 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
@@ -16,51 +16,113 @@
* 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
+#ifndef __cosmopolitan
+#include
#endif
-// #define DEBUG
+#include "binary.h"
+
+typedef union {
+ uint8_t buf[4];
+ uint32_t val;
+} base16384_union_remainder;
+
+int base16384_encode_safe(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;
+ }
+ 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);
+ }
+ base16384_union_remainder valbuf;
+ if(dlen - 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;
+ memcpy(valbuf.buf, data+i+4, 3);
+ shift |= (htobe32(valbuf.val)>>6)&0x03fffffc;
+ sum |= shift & 0x3fff0000;
+ shift >>= 2;
+ sum |= shift & 0x00003fff;
+ sum += 0x4e004e00;
+ vals[n++] = be32toh(sum);
+ return outlen;
+ }
+ 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;
+ // safe, because it will never go over 0x3dxx
+ #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;
+ // safe, because it will never go over 0x3dxx
+ #ifdef WORDS_BIGENDIAN
+ vals[n] = __builtin_bswap32(sum);
+ #else
+ vals[n] = sum;
+ #endif
+ buf[outlen - 2] = '=';
+ buf[outlen - 1] = offset;
+ }
+ return outlen;
+}
int base16384_encode(const char* data, int dlen, char* buf) {
int outlen = dlen / 7 * 8;
@@ -75,9 +137,6 @@ int base16384_encode(const char* data, int dlen, char* buf) {
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;
@@ -140,6 +199,143 @@ int base16384_encode(const char* data, int dlen, char* buf) {
return outlen;
}
+int base16384_encode_unsafe(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;
+ }
+ uint32_t* vals = (uint32_t*)buf;
+ uint32_t n = 0;
+ int32_t i = 0;
+ for(; i < dlen; 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);
+ }
+ if(offset) {
+ buf[outlen - 2] = '=';
+ buf[outlen - 1] = offset;
+ }
+ return outlen;
+}
+
+int base16384_decode_safe(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;
+ const uint32_t* vals = (const 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);
+ }
+ base16384_union_remainder valbuf;
+ if(outlen - i == 7) {
+ 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;
+ valbuf.val = be32toh(sum);
+ memcpy(buf+i+4, valbuf.buf, 3);
+ } else if((*(uint8_t*)(&vals[n]) != '=') && offset--) {
+ int cnt = dlen-2-(int)n*(int)sizeof(uint32_t);
+ if (cnt > 4) cnt = 4;
+ memcpy(valbuf.buf, &vals[n], cnt);
+ n++;
+ #ifdef WORDS_BIGENDIAN
+ register uint32_t sum = __builtin_bswap32(valbuf.val);
+ #else
+ register uint32_t sum = valbuf.val;
+ #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;
+ if(*(uint8_t*)(&vals[n]) == '=') return outlen;
+ memcpy(valbuf.buf, &vals[n], dlen-2-(int)n*(int)sizeof(uint32_t));
+ #ifdef WORDS_BIGENDIAN
+ sum = __builtin_bswap32(valbuf.val);
+ #else
+ sum = valbuf.val;
+ #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;
+}
+
int base16384_decode(const char* data, int dlen, char* buf) {
int outlen = dlen;
int offset = 0;
@@ -157,7 +353,7 @@ int base16384_decode(const char* data, int dlen, char* buf) {
}
}
outlen = outlen / 8 * 7 + offset;
- uint32_t* vals = (uint32_t*)data;
+ const uint32_t* vals = (const 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
@@ -177,6 +373,7 @@ int base16384_decode(const char* data, int dlen, char* buf) {
sum |= shift & 0x003fff00;
*(uint32_t*)(buf+i+4) = be32toh(sum);
}
+ if(*(uint8_t*)(&vals[n]) == '=') return outlen;
if(offset--) {
// 这里有读取越界
#ifdef WORDS_BIGENDIAN
@@ -193,6 +390,7 @@ int base16384_decode(const char* data, int dlen, char* buf) {
buf[i++] = ((sum & 0x000f0000) >> 12) | ((sum & 0xf0000000) >> 28);
if(offset--) {
buf[i] = (sum & 0x0f000000) >> 20;
+ if(*(uint8_t*)(&vals[n]) == '=') return outlen;
// 这里有读取越界
#ifdef WORDS_BIGENDIAN
sum = __builtin_bswap32(vals[n]);
@@ -214,3 +412,69 @@ int base16384_decode(const char* data, int dlen, char* buf) {
}
return outlen;
}
+
+int base16384_decode_unsafe(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;
+ const uint32_t* vals = (const 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);
+ }
+ register uint32_t sum = 0;
+ register uint32_t shift = htobe32(vals[n++]);
+ if(((shift>>24)&0xff) == 0x3d) return outlen;
+ if(((shift>>24)&0xff) < 0x4e) shift |= 0xff000000;
+ if(((shift>> 8)&0xff) < 0x4e) shift |= 0x0000ff00;
+ shift -= 0x4e004e00;
+ shift <<= 2;
+ sum |= shift & 0xfffc0000;
+ shift <<= 2;
+ sum |= shift & 0x0003fff0;
+ shift = htobe32(vals[n]);
+ if(((shift>>24)&0xff) == 0x3d) {
+ *(uint32_t*)(buf+i) = be32toh(sum);
+ return outlen;
+ }
+ if(((shift>>24)&0xff) < 0x4e) shift |= 0xff000000;
+ if(((shift>> 8)&0xff) < 0x4e) shift |= 0x0000ff00;
+ shift -= 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);
+ return outlen;
+}
diff --git a/base1464.c b/base1464.c
index 73b0432..1cfc786 100644
--- a/base1464.c
+++ b/base1464.c
@@ -1,6 +1,6 @@
/* base1464.c
* This file is part of the base16384 distribution (https://github.com/fumiama/base16384).
- * Copyright (c) 2022-2023 Fumiama Minamoto.
+ * Copyright (c) 2022-2024 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
@@ -16,51 +16,98 @@
* 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
+#ifndef __cosmopolitan
+#include
#endif
-// #define DEBUG
+#include "binary.h"
+
+typedef union {
+ uint8_t buf[8];
+ uint64_t val;
+} base16384_union_remainder;
+
+int base16384_encode_safe(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;
+ }
+ 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;
+ sum |= shift & 0x3fff000000000000;
+ shift >>= 2;
+ sum |= shift & 0x00003fff00000000;
+ shift >>= 2;
+ sum |= shift & 0x000000003fff0000;
+ shift >>= 2;
+ sum |= shift & 0x0000000000003fff;
+ sum += 0x4e004e004e004e00;
+ vals[n++] = be64toh(sum);
+ }
+ base16384_union_remainder valbuf;
+ if(dlen - i == 7) {
+ memcpy(valbuf.buf, data+i, 7);
+ register uint64_t sum = 0;
+ register uint64_t shift = htobe64(valbuf.val)>>2;
+ sum |= shift & 0x3fff000000000000;
+ shift >>= 2;
+ sum |= shift & 0x00003fff00000000;
+ shift >>= 2;
+ sum |= shift & 0x000000003fff0000;
+ shift >>= 2;
+ sum |= shift & 0x0000000000003fff;
+ sum += 0x4e004e004e004e00;
+ vals[n++] = be64toh(sum);
+ return outlen;
+ }
+ 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
+ valbuf.val = __builtin_bswap64(sum);
+ #else
+ valbuf.val = sum;
+ #endif
+ memcpy(&vals[n], valbuf.buf, outlen-2-(int)n*(int)sizeof(uint64_t));
+ buf[outlen - 2] = '=';
+ buf[outlen - 1] = offset;
+ }
+ return outlen;
+}
int base16384_encode(const char* data, int dlen, char* buf) {
int outlen = dlen / 7 * 8;
@@ -75,9 +122,6 @@ int base16384_encode(const char* data, int dlen, char* buf) {
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;
@@ -93,9 +137,6 @@ int base16384_encode(const char* data, int dlen, char* buf) {
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--) {
@@ -127,15 +168,125 @@ int base16384_encode(const char* data, int dlen, char* buf) {
#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_encode_unsafe(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;
+ }
+ uint64_t* vals = (uint64_t*)buf;
+ uint64_t n = 0;
+ int64_t i = 0;
+ for(; i < dlen; 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);
+ }
+ if(offset) {
+ buf[outlen - 2] = '=';
+ buf[outlen - 1] = offset;
+ }
+ return outlen;
+}
+
+int base16384_decode_safe(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;
+ const uint64_t* vals = (const 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);
+ }
+ base16384_union_remainder valbuf;
+ if(outlen - 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;
+ valbuf.val = be64toh(sum);
+ memcpy(buf+i, valbuf.buf, 7);
+ } else if((*(uint8_t*)(&vals[n]) != '=') && offset--) {
+ memcpy(valbuf.buf, &vals[n], dlen-2-(int)n*(int)sizeof(uint64_t));
+ #ifdef WORDS_BIGENDIAN
+ register uint64_t sum = __builtin_bswap64(valbuf.val) - 0x000000000000004e;
+ #else
+ register uint64_t sum = valbuf.val - 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;
+}
+
int base16384_decode(const char* data, int dlen, char* buf) {
int outlen = dlen;
int offset = 0;
@@ -153,7 +304,7 @@ int base16384_decode(const char* data, int dlen, char* buf) {
}
}
outlen = outlen / 8 * 7 + offset;
- uint64_t* vals = (uint64_t*)data;
+ const uint64_t* vals = (const uint64_t*)data;
uint64_t n = 0;
int64_t i = 0;
for(; i <= outlen - 7; n++, i+=7) {
@@ -168,10 +319,8 @@ int base16384_decode(const char* data, int dlen, char* buf) {
shift <<= 2;
sum |= shift & 0x00000000003fff00;
*(uint64_t*)(buf+i) = be64toh(sum);
- #ifdef DEBUG
- printf("i: %llu, add sum: %016llx\n", i, sum);
- #endif
}
+ if(*(uint8_t*)(&vals[n]) == '=') return outlen;
if(offset--) {
// 这里有读取越界
#ifdef WORDS_BIGENDIAN
@@ -201,3 +350,56 @@ int base16384_decode(const char* data, int dlen, char* buf) {
}
return outlen;
}
+
+int base16384_decode_unsafe(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;
+ const uint64_t* vals = (const 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);
+ }
+ register uint64_t sum = 0;
+ register uint64_t shift = htobe64(vals[n]);
+ if(((shift>>56)&0xff) == 0x3d) return outlen;
+ if(((shift>>56)&0xff) < 0x4e) shift |= 0xff00000000000000;
+ if(((shift>>40)&0xff) < 0x4e) shift |= 0x0000ff0000000000;
+ if(((shift>>24)&0xff) < 0x4e) shift |= 0x00000000ff000000;
+ if(((shift>> 8)&0xff) < 0x4e) shift |= 0x000000000000ff00;
+ shift -= 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);
+ return outlen;
+}
diff --git a/base16384.1 b/base16384.1
index 279534d..0b8b258 100644
--- a/base16384.1
+++ b/base16384.1
@@ -1,9 +1,9 @@
-.TH BASE16384 1 "26 August 2023" "GNU" "User Commands"
+.TH BASE16384 1 "5 April 2024" "GNU" "User Commands"
.SH NAME
base16384 \- Encode binary files to printable utf16be
.SH SYNOPSIS
.B base16384
--[e|d|t] <\fIinputfile\fR> <\fIoutputfile\fR>
+-[edtn] <\fIinputfile\fR> <\fIoutputfile\fR>
.SH DESCRIPTION
.LP
There are
@@ -27,7 +27,30 @@ to
.sp 1
.TP 0.5i
\fB\-e\fR
-Read data from \fIinputfile\fR and encode them into \fIoutputfile\fR.
+Read data from \fIinputfile\fR and encode them into \fIoutputfile\fR. It's the default option when neither
+.B -e
+nor
+.B -d
+is specified.
+.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
+\fB\-n\fR
+Do not write utf16be file header
+.B 0xFEFF
+to the output.
+.TP 0.5i
+\fB\-c\fR
+Embed or validate checksum in remainder when using \fIstdin\fR or \fIstdout\fR or inputsize > _BASE16384_ENCBUFSZ.
+.TP 0.5i
+\fB\-C\fR
+Do
+.B -c
+forcely.
.TP 0.5i
\fB\-d\fR
Read data from \fIinputfile\fR and decode them into \fIoutputfile\fR.
@@ -36,10 +59,14 @@ Read data from \fIinputfile\fR and decode them into \fIoutputfile\fR.
Show spend time.
.TP 0.5i
\fBinputfile\fR
-An absolute or relative file path. Specially, pass - to read from stdin.
+An absolute or relative file path. Specially, pass
+.B -
+to read from \fIstdin\fR.
.TP 0.5i
\fBoutputfile\fR
-An absolute or relative file path. Specially, pass - to write to stdout.
+An absolute or relative file path. Specially, pass
+.B -
+to write to \fIstdout\fR.
.SH "EXIT STATUS"
.TP 0.5i
\fB0\fR
@@ -68,6 +95,12 @@ Write file error in mmap.
.TP 0.5i
\fB8\fR
Invalid input/output filename.
+.TP 0.5i
+\fB9\fR
+Invalid commandline parameter.
+.TP 0.5i
+\fB10\fR
+Invalid decoding checksum.
.SH "SEE ALSO"
https://github.com/fumiama/base16384
.SH BUGS
@@ -77,7 +110,7 @@ on github.
.SH AUTHOR
This manual page contributed by Fumiama Minamoto.
.SH "COPYRIGHT"
-Copyright \(co 2022-2023, Fumiama Minamoto
+Copyright \(co 2022-2024, Fumiama Minamoto
This file is part of
.IR "base16384" .
.LP
diff --git a/base16384.c b/base16384.c
index 53d1891..05756b2 100644
--- a/base16384.c
+++ b/base16384.c
@@ -1,6 +1,6 @@
/* base16384.c
* This file is part of the base16384 distribution (https://github.com/fumiama/base16384).
- * Copyright (c) 2022-2023 Fumiama Minamoto.
+ * Copyright (c) 2022-2024 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
@@ -38,77 +38,103 @@ unsigned long get_start_ms() {
}
#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");
+static base16384_err_t print_usage() {
+ #ifndef BASE16384_VERSION
+ #define BASE16384_VERSION "dev"
+ #endif
+ #ifndef BASE16384_VERSION_DATE
+ #define BASE16384_VERSION_DATE "unknown date"
+ #endif
+ fputs(
+ "Copyright (c) 2022-2024 Fumiama Minamoto.\nBase16384 "
+ BASE16384_VERSION
+ " ("
+ BASE16384_VERSION_DATE
+ "). Usage:\n", stderr
+ );
+ fputs("base16384 [-edtn] [inputfile] [outputfile]\n", stderr);
+ fputs(" -e\t\tencode (default)\n", stderr);
+ fputs(" -d\t\tdecode\n", stderr);
+ fputs(" -t\t\tshow spend time\n", stderr);
+ fputs(" -n\t\tdon't write utf16be file header (0xFEFF)\n", stderr);
+ fputs(" -c\t\tembed or validate checksum in remainder\n", stderr);
+ fputs(" -C\t\tdo -c forcely\n", stderr);
+ fputs(" inputfile\tpass - to read from stdin\n", stderr);
+ fputs(" outputfile\tpass - to write to stdout\n", stderr);
+ return base16384_err_invalid_commandline_parameter;
}
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;
- }
+
+ const char* cmd = argv[1];
+ if(argc != 4 || cmd[0] != '-') return print_usage();
+
+ int flaglen = strlen(cmd);
+ if(flaglen <= 1 || flaglen > 5) return print_usage();
+
#ifdef _WIN32
clock_t t = 0;
#else
unsigned long t = 0;
#endif
+
+ uint16_t is_encode = 1, use_timer = 0, no_header = 0, use_checksum = 0;
+ #define set_flag(f, v) ((f) = (((((f)>>8)+1) << 8)&0xff00) | (v&0x00ff))
+ #define flag_has_been_set(f) ((f)>>8)
+ #define set_or_test_flag(f, v) (flag_has_been_set(f)?1:(set_flag(f, v), 0))
+ while(--flaglen) switch(cmd[flaglen]) { // skip cmd[0] = '-'
+ case 'e':
+ if(set_or_test_flag(is_encode, 1)) return print_usage();
+ break;
+ case 'd':
+ if(set_or_test_flag(is_encode, 0)) return print_usage();
+ break;
+ case 't':
+ if(set_or_test_flag(use_timer, 1)) return print_usage();
+ break;
+ case 'n':
+ if(set_or_test_flag(no_header, 1)) return print_usage();
+ break;
+ case 'c':
+ if(set_or_test_flag(use_checksum, 1)) return print_usage();
+ break;
+ case 'C':
+ if(set_or_test_flag(use_checksum, 2)) return print_usage();
+ break;
+ default:
+ return print_usage();
+ break;
+ }
+ #define clear_high_byte(x) ((x) &= 0x00ff)
+ clear_high_byte(is_encode); clear_high_byte(use_timer);
+ clear_high_byte(no_header); clear_high_byte(use_checksum);
+
+ if(use_timer) {
+ #ifdef _WIN32
+ t = clock();
+ #else
+ t = get_start_ms();
+ #endif
+ }
+
base16384_err_t exitstat = base16384_err_ok;
- char cmd = argv[1][1];
- if(cmd == 't') {
- if(flaglen == 2) {
- print_usage(); return -3;
- }
+
+ #define do_coding(method) base16384_##method##_file_detailed( \
+ argv[2], argv[3], encbuf, decbuf, \
+ (no_header?BASE16384_FLAG_NOHEADER:0) \
+ | ((use_checksum&1)?BASE16384_FLAG_SUM_CHECK_ON_REMAIN:0) \
+ | ((use_checksum&2)?BASE16384_FLAG_DO_SUM_CHECK_FORCELY:0) \
+ )
+ exitstat = is_encode?do_coding(encode):do_coding(decode);
+ #undef do_coding
+ if(t) {
#ifdef _WIN32
- t = clock();
+ fprintf(stderr, "spend time: %lums\n", clock() - t);
#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();
+ fprintf(stderr, "spend time: %lums\n", get_start_ms() - t);
#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;
+
+ return base16384_perror(exitstat);
+
}
diff --git a/base16384.h b/base16384.h
index fd19063..b5be8a5 100644
--- a/base16384.h
+++ b/base16384.h
@@ -3,7 +3,7 @@
/* base16384.h
* This file is part of the base16384 distribution (https://github.com/fumiama/base16384).
- * Copyright (c) 2022-2023 Fumiama Minamoto.
+ * Copyright (c) 2022-2024 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
@@ -24,33 +24,50 @@
#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_ok,
+ base16384_err_get_file_size,
+ base16384_err_fopen_output_file,
+ base16384_err_fopen_input_file,
+ base16384_err_write_file,
+ base16384_err_open_input_file,
+ base16384_err_map_input_file,
+ base16384_err_read_file,
+ base16384_err_invalid_file_name,
+ base16384_err_invalid_commandline_parameter,
+ base16384_err_invalid_decoding_checksum,
};
-// base16384_err_t is the return value of base16384_en/decode_file
+/**
+ * @brief return value of base16384_en/decode_file
+*/
typedef enum base16384_err_t base16384_err_t;
-#undef define_base16384_err_t
+#ifndef BASE16384_BUFSZ_FACTOR
+ #define BASE16384_BUFSZ_FACTOR (8)
+#endif
-#define BASE16384_ENCBUFSZ (BUFSIZ*1024/7*7+7)
-#define BASE16384_DECBUFSZ (BUFSIZ*1024/8*8+16)
+#define _BASE16384_ENCBUFSZ ((BUFSIZ*BASE16384_BUFSZ_FACTOR)/7*7)
+#define _BASE16384_DECBUFSZ ((BUFSIZ*BASE16384_BUFSZ_FACTOR)/8*8)
-// base16384_encode_len calc min buf size to fill encode result
-static inline int base16384_encode_len(int dlen) {
+#define BASE16384_ENCBUFSZ (_BASE16384_ENCBUFSZ+16)
+#define BASE16384_DECBUFSZ (_BASE16384_DECBUFSZ+16)
+
+// disable 0xFEFF file header in encode
+#define BASE16384_FLAG_NOHEADER (1<<0)
+// enable sum check when using stdin or stdout or inputsize > _BASE16384_ENCBUFSZ
+#define BASE16384_FLAG_SUM_CHECK_ON_REMAIN (1<<1)
+// forcely do sumcheck without checking data length
+#define BASE16384_FLAG_DO_SUM_CHECK_FORCELY (1<<2)
+
+/**
+ * @brief calculate the exact encoded size
+ * @param dlen the data length to encode
+ * @return the size
+*/
+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
+ 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:
@@ -60,13 +77,27 @@ static inline int base16384_encode_len(int dlen) {
case 6: outlen += 10; break;
default: break;
}
- return outlen + 8; // 冗余的8B用于可能的结尾的覆盖
+ return outlen;
}
-// base16384_decode_len calc min buf size to fill decode result
-static inline int base16384_decode_len(int dlen, int offset) {
+/**
+ * @brief calculate minimum encoding buffer size (16 bits larger than the real encoded size)
+ * @param dlen the data length to encode
+ * @return the minimum encoding buffer size
+*/
+static inline int base16384_encode_len(int dlen) {
+ return _base16384_encode_len(dlen) + 16; // 冗余的 16 字节用于可能的结尾的 unsafe 覆盖
+}
+
+/**
+ * @brief calculate the exact decoded size
+ * @param dlen the data length to decode
+ * @param offset the last char `xx` of the underfilled coding (0x3Dxx) or 0 for the full coding
+ * @return the size
+*/
+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
+ 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:
@@ -76,39 +107,180 @@ static inline int base16384_decode_len(int dlen, int offset) {
case 6: outlen -= 10; break;
default: break;
}
- return outlen / 8 * 7 + offset + 1; // 多出1字节用于循环覆盖
+ return outlen / 8 * 7 + offset;
}
-// base16384_encode encodes data and write result into buf
+/**
+ * @brief calculate minimum decoding buffer size (16 bits larger than the real decoded size)
+ * @param dlen the data length to decode
+ * @param offset the last char `xx` of the underfilled coding (0x3Dxx) or 0 for the full coding
+ * @return the minimum decoding buffer size
+*/
+static inline int base16384_decode_len(int dlen, int offset) {
+ return _base16384_decode_len(dlen, offset) + 16; // 多出 16 字节用于 unsafe 循环覆盖
+}
+
+/**
+ * @brief safely encode data and write result into buf
+ * @param data data to encode, no data overread
+ * @param dlen the data length
+ * @param buf the output buffer, whose size can be exactly `_base16384_encode_len`
+ * @return the total length written
+*/
+int base16384_encode_safe(const char* data, int dlen, char* buf);
+
+/**
+ * @brief encode data and write result into buf
+ * @param data data to encode
+ * @param dlen the data length
+ * @param buf the output buffer, whose size must greater than `base16384_encode_len`
+ * @return the total length written
+*/
int base16384_encode(const char* data, int dlen, char* buf);
-// base16384_decode decodes data and write result into buf
+/**
+ * @brief encode data and write result into buf without considering border condition
+ * @param data data to encode
+ * @param dlen the data length
+ * @param buf the output buffer, whose size must greater than `base16384_encode_len`
+ * @return the total length written
+*/
+int base16384_encode_unsafe(const char* data, int dlen, char* buf);
+
+/**
+ * @brief safely decode data and write result into buf
+ * @param data data to decode, no data overread
+ * @param dlen the data length
+ * @param buf the output buffer, whose size can be exactly `_base16384_decode_len`
+ * @return the total length written
+*/
+int base16384_decode_safe(const char* data, int dlen, char* buf);
+
+/**
+ * @brief decode data and write result into buf
+ * @param data data to decode
+ * @param dlen the data length
+ * @param buf the output buffer, whose size must greater than `base16384_decode_len`
+ * @return the total length written
+*/
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);
+/**
+ * @brief decode data and write result into buf without considering border condition
+ * @param data data to decode
+ * @param dlen the data length
+ * @param buf the output buffer, whose size must greater than `base16384_decode_len`
+ * @return the total length written
+*/
+int base16384_decode_unsafe(const char* data, int dlen, char* buf);
-// 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);
+#define base16384_typed_params(type) type input, type output, char* encbuf, char* decbuf
+#define base16384_typed_flag_params(type) base16384_typed_params(type), int flag
-// 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);
+/**
+ * @brief encode input file to output file
+ * @param input filename or `-` to specify stdin
+ * @param output filename or `-` to specify stdout
+ * @param encbuf must be no less than BASE16384_ENCBUFSZ
+ * @param decbuf must be no less than BASE16384_DECBUFSZ
+ * @param flag BASE16384_FLAG_xxx value, add multiple flags by `|`
+ * @return the error code
+*/
+base16384_err_t base16384_encode_file_detailed(base16384_typed_flag_params(const char*));
-// 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);
+/**
+ * @brief encode input `FILE*` to output `FILE*`
+ * @param input `FILE*` pointer
+ * @param output `FILE*` pointer
+ * @param encbuf must be no less than BASE16384_ENCBUFSZ
+ * @param decbuf must be no less than BASE16384_DECBUFSZ
+ * @param flag BASE16384_FLAG_xxx value, add multiple flags by `|`
+ * @return the error code
+*/
+base16384_err_t base16384_encode_fp_detailed(base16384_typed_flag_params(FILE*));
-// 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);
+/**
+ * @brief encode input stream to output stream
+ * @param input file descripter
+ * @param output file descripter
+ * @param encbuf must be no less than BASE16384_ENCBUFSZ
+ * @param decbuf must be no less than BASE16384_DECBUFSZ
+ * @param flag BASE16384_FLAG_xxx value, add multiple flags by `|`
+ * @return the error code
+*/
+base16384_err_t base16384_encode_fd_detailed(base16384_typed_flag_params(int));
-// 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);
+/**
+ * @brief decode input file to output file
+ * @param input filename or `-` to specify stdin
+ * @param output filename or `-` to specify stdout
+ * @param encbuf must be no less than BASE16384_ENCBUFSZ
+ * @param decbuf must be no less than BASE16384_DECBUFSZ
+ * @param flag BASE16384_FLAG_xxx value, add multiple flags by `|`
+ * @return the error code
+*/
+base16384_err_t base16384_decode_file_detailed(base16384_typed_flag_params(const char*));
+
+/**
+ * @brief decode input `FILE*` to output `FILE*`
+ * @param input `FILE*` pointer
+ * @param output `FILE*` pointer
+ * @param encbuf must be no less than BASE16384_ENCBUFSZ
+ * @param decbuf must be no less than BASE16384_DECBUFSZ
+ * @param flag BASE16384_FLAG_xxx value, add multiple flags by `|`
+ * @return the error code
+*/
+base16384_err_t base16384_decode_fp_detailed(base16384_typed_flag_params(FILE*));
+
+/**
+ * @brief decode input stream to output stream
+ * @param input file descripter
+ * @param output file descripter
+ * @param encbuf must be no less than BASE16384_ENCBUFSZ
+ * @param decbuf must be no less than BASE16384_DECBUFSZ
+ * @param flag BASE16384_FLAG_xxx value, add multiple flags by `|`
+ * @return the error code
+*/
+base16384_err_t base16384_decode_fd_detailed(base16384_typed_flag_params(int));
+
+#define BASE16384_WRAP_DECL(method, name, type) \
+ base16384_err_t base16384_##method##_##name(base16384_typed_params(type));
+
+ BASE16384_WRAP_DECL(encode, file, const char*);
+ BASE16384_WRAP_DECL(encode, fp, FILE*);
+ BASE16384_WRAP_DECL(encode, fd, int);
+
+ BASE16384_WRAP_DECL(decode, file, const char*);
+ BASE16384_WRAP_DECL(decode, fp, FILE*);
+ BASE16384_WRAP_DECL(decode, fd, int);
+
+#undef BASE16384_WRAP_DECL
+
+#undef base16384_typed_flag_params
+#undef base16384_typed_params
+
+/**
+ * @brief call perror on error
+ * @param err the error
+ * @return the input parameter `err`
+*/
+static inline base16384_err_t base16384_perror(base16384_err_t err) {
+ #define base16384_perror_case(n) case base16384_err_##n: perror("base16384_err_"#n)
+ if(err) switch(err) {
+ base16384_perror_case(get_file_size); break;
+ base16384_perror_case(fopen_output_file); break;
+ base16384_perror_case(fopen_input_file); break;
+ base16384_perror_case(write_file); break;
+ base16384_perror_case(open_input_file); break;
+ base16384_perror_case(map_input_file); break;
+ base16384_perror_case(read_file); break;
+ base16384_perror_case(invalid_file_name); break;
+ base16384_perror_case(invalid_commandline_parameter); break;
+ base16384_perror_case(invalid_decoding_checksum); break;
+ default: perror("base16384"); break;
+ }
+ #undef base16384_perror_case
+ return err;
+}
#endif
diff --git a/binary.h b/binary.h
new file mode 100644
index 0000000..46c7039
--- /dev/null
+++ b/binary.h
@@ -0,0 +1,124 @@
+#ifndef _BINARY_H_
+#define _BINARY_H_
+
+/* binary.h
+ * This file is part of the base16384 distribution (https://github.com/fumiama/base16384).
+ * Copyright (c) 2022-2024 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)
+ #ifdef IS_64BIT_PROCESSOR
+ #define be64toh(x) betoh64(x)
+ #endif
+ #endif
+ #ifdef __APPLE__
+ #define be16toh(x) ntohs(x)
+ #define be32toh(x) ntohl(x)
+ #ifdef IS_64BIT_PROCESSOR
+ #define be64toh(x) ntohll(x)
+ #endif
+ #define htobe16(x) htons(x)
+ #define htobe32(x) htonl(x)
+ #ifdef IS_64BIT_PROCESSOR
+ #define htobe64(x) htonll(x)
+ #endif
+ #endif
+ #ifdef _WIN32
+ #ifdef WORDS_BIGENDIAN
+ #define be16toh(x) (x)
+ #define be32toh(x) (x)
+ #ifdef IS_64BIT_PROCESSOR
+ #define be64toh(x) (x)
+ #endif
+ #define htobe16(x) (x)
+ #define htobe32(x) (x)
+ #ifdef IS_64BIT_PROCESSOR
+ #define htobe64(x) (x)
+ #endif
+ #else
+ #define be16toh(x) _byteswap_ushort(x)
+ #define be32toh(x) _byteswap_ulong(x)
+ #ifdef IS_64BIT_PROCESSOR
+ #define be64toh(x) _byteswap_uint64(x)
+ #endif
+ #define htobe16(x) _byteswap_ushort(x)
+ #define htobe32(x) _byteswap_ulong(x)
+ #ifdef IS_64BIT_PROCESSOR
+ #define htobe64(x) _byteswap_uint64(x)
+ #endif
+ #endif
+ #endif
+#endif
+
+// leftrotate function definition
+#define LEFTROTATE(x, c) (((x) << (c)) | ((x) >> (sizeof(x)*8 - (c))))
+
+// initial sum value used in BASE16384_FLAG_SUM_CHECK_ON_REMAIN
+#define BASE16384_SIMPLE_SUM_INIT_VALUE (0x8e29c213)
+
+static inline uint32_t calc_sum(uint32_t sum, size_t cnt, const char* encbuf) {
+ size_t i;
+ uint32_t buf;
+ for(i = 0; i < cnt; i++) {
+ buf = (uint32_t)(encbuf[i])&0xff;
+ buf = ((buf<<(24-6))&0x03000000) | ((buf<<(16-4))&0x00030000) | ((buf<<(8-2))&0x00000300) | (buf&0x03);
+ sum += buf;
+ sum = ~LEFTROTATE(sum, 3);
+ }
+ return sum;
+}
+
+static inline int check_sum(uint32_t sum, uint32_t sum_read_raw, int offset) {
+ offset = offset%7;
+ if(!offset--) return 0; // no remain bits, pass
+ // offset 1: 0011 1111 1100 0000 remain: 3*2 bits
+ // offset 2: 0011 1111 1111 1111 0011 0000 0000 0000 remain: 6*2 bits
+ // offset 3: 0011 1111 1111 0000 remain: 2*2 bits
+ // offset 4: 0011 1111 1111 1111 0011 1100 0000 0000 remain: 5*2 bits
+ // offset 5: 0011 1111 1111 1100 remain: 1*2 bits
+ // offset 6: 0011 1111 1111 1111 0011 1111 0000 0000 remain: 4*2 bits
+ // encode: 0415263 (6-1) per 3bits, thus 0x021ab3
+ int shift = sizeof(uint32_t)*8 - ((0x021ab3>>(offset*3))&0x07)*2;
+ uint32_t sum_read = be32toh(sum_read_raw) >> shift;
+ sum >>= shift;
+ #ifdef DEBUG
+ fprintf(stderr, "shift: %d, offset: %d, mysum: %08x, sumrd: %08x\n", shift, offset+1, sum, sum_read);
+ #endif
+ return sum != sum_read;
+}
+
+#endif
diff --git a/file.c b/file.c
index 0d07623..61b2457 100644
--- a/file.c
+++ b/file.c
@@ -1,6 +1,6 @@
/* file.c
* This file is part of the base16384 distribution (https://github.com/fumiama/base16384).
- * Copyright (c) 2022-2023 Fumiama Minamoto.
+ * Copyright (c) 2022-2024 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
@@ -23,6 +23,7 @@
#include
#include
#include
+#include
#ifdef _WIN32
#include
#include
@@ -33,6 +34,7 @@
#endif
#endif
#include "base16384.h"
+#include "binary.h"
#ifdef __cosmopolitan
#define get_file_size(filepath) ((off_t)GetFileSize(filepath))
@@ -45,100 +47,166 @@ static inline off_t get_file_size(const char* filepath) {
#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) {
+#define goto_base16384_file_detailed_cleanup(method, reason, dobeforereturn) { \
+ errnobak = errno; \
+ retval = reason; \
+ dobeforereturn; \
+ goto base16384_##method##_file_detailed_cleanup; \
+}
+
+#define do_sum_check(flag) ((flag)&(BASE16384_FLAG_DO_SUM_CHECK_FORCELY|BASE16384_FLAG_SUM_CHECK_ON_REMAIN))
+
+base16384_err_t base16384_encode_file_detailed(const char* input, const char* output, char* encbuf, char* decbuf, int flag) {
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;
+ FILE *fp = NULL, *fpo;
+ int errnobak = 0, is_stdin = is_standard_io(input);
+ base16384_err_t retval = base16384_err_ok;
+ if(!input || !output || strlen(input) <= 0 || strlen(output) <= 0) {
+ errno = EINVAL;
+ return base16384_err_invalid_file_name;
+ }
+ if(is_stdin) { // read from stdin
+ inputsize = _BASE16384_ENCBUFSZ;
fp = stdin;
} else inputsize = get_file_size(input);
- if(inputsize < 0) {
+ if(inputsize <= 0) {
+ if(!inputsize) errno = EINVAL;
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(flag&BASE16384_FLAG_DO_SUM_CHECK_FORCELY || inputsize >= _BASE16384_ENCBUFSZ) { // stdin or big file, use encbuf & fread
+ inputsize = _BASE16384_ENCBUFSZ;
#if defined _WIN32 || defined __cosmopolitan
}
#endif
if(!fp) fp = fopen(input, "rb");
if(!fp) {
- return base16384_err_fopen_input_file;
+ goto_base16384_file_detailed_cleanup(encode, base16384_err_fopen_input_file, {});
}
- size_t cnt = 0;
- fputc(0xFE, fpo);
- fputc(0xFF, fpo);
+ if(!(flag&BASE16384_FLAG_NOHEADER)) {
+ fputc(0xFE, fpo);
+ fputc(0xFF, fpo);
+ }
+ size_t cnt;
+ uint32_t sum = BASE16384_SIMPLE_SUM_INIT_VALUE;
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;
+ int n;
+ while(cnt%7) {
+ n = fread(encbuf+cnt, sizeof(char), 1, fp);
+ if(n > 0) cnt++;
+ else break;
+ }
+ if(do_sum_check(flag)) {
+ sum = calc_sum(sum, cnt, encbuf);
+ if(cnt%7) { // last encode
+ *(uint32_t*)(&encbuf[cnt]) = htobe32(sum);
+ #ifdef DEBUG
+ fprintf(stderr, "writesum: %08x\n", sum);
+ #endif
+ }
+ }
+ n = base16384_encode_unsafe(encbuf, cnt, decbuf);
+ if(n && fwrite(decbuf, n, 1, fpo) <= 0) {
+ goto_base16384_file_detailed_cleanup(encode, 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;
+ goto_base16384_file_detailed_cleanup(encode, 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;
+ goto_base16384_file_detailed_cleanup(encode, base16384_err_map_input_file, close(fd));
}
- 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;
+ if(!(flag&BASE16384_FLAG_NOHEADER)) {
+ fputc(0xFE, fpo);
+ fputc(0xFF, fpo);
+ }
+ int n = base16384_encode_safe(input_file, (int)inputsize, decbuf);
+ if(n && fwrite(decbuf, n, 1, fpo) <= 0) {
+ goto_base16384_file_detailed_cleanup(encode, base16384_err_write_file, {
+ munmap(input_file, (size_t)inputsize);
+ close(fd);
+ });
}
munmap(input_file, (size_t)inputsize);
- if(!is_standard_io(output)) fclose(fpo);
close(fd);
}
#endif
- return base16384_err_ok;
+base16384_encode_file_detailed_cleanup:
+ if(fpo && !is_standard_io(output)) fclose(fpo);
+ if(fp && !is_stdin) fclose(fp);
+ if(errnobak) errno = errnobak;
+ return retval;
}
-base16384_err_t base16384_encode_fp(FILE* input, FILE* output, char* encbuf, char* decbuf) {
+base16384_err_t base16384_encode_fp_detailed(FILE* input, FILE* output, char* encbuf, char* decbuf, int flag) {
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);
+ if(!(flag&BASE16384_FLAG_NOHEADER)) {
+ fputc(0xFE, output);
+ fputc(0xFF, output);
+ }
+ off_t inputsize = _BASE16384_ENCBUFSZ;
+ uint32_t sum = BASE16384_SIMPLE_SUM_INIT_VALUE;
+ size_t cnt;
while((cnt = fread(encbuf, sizeof(char), inputsize, input)) > 0) {
- int n = base16384_encode(encbuf, cnt, decbuf);
- if(fwrite(decbuf, n, 1, output) <= 0) {
+ int n;
+ while(cnt%7) {
+ n = fread(encbuf+cnt, sizeof(char), 1, input);
+ if(n > 0) cnt++;
+ else break;
+ }
+ if(do_sum_check(flag)) {
+ sum = calc_sum(sum, cnt, encbuf);
+ if(cnt%7) { // last encode
+ *(uint32_t*)(&encbuf[cnt]) = htobe32(sum);
+ }
+ }
+ n = base16384_encode_unsafe(encbuf, cnt, decbuf);
+ if(n && 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) {
+base16384_err_t base16384_encode_fd_detailed(int input, int output, char* encbuf, char* decbuf, int flag) {
if(input < 0) {
return base16384_err_fopen_input_file;
}
if(output < 0) {
return base16384_err_fopen_output_file;
}
- off_t inputsize = BASE16384_ENCBUFSZ-7;
+ off_t inputsize = _BASE16384_ENCBUFSZ;
size_t cnt = 0;
- write(output, "\xfe\xff", 2);
+ uint32_t sum = BASE16384_SIMPLE_SUM_INIT_VALUE;
+ if(!(flag&BASE16384_FLAG_NOHEADER)) 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) {
+ int n;
+ while(cnt%7) {
+ n = read(input, encbuf+cnt, sizeof(char));
+ if(n > 0) cnt++;
+ else break;
+ }
+ if(do_sum_check(flag)) {
+ sum = calc_sum(sum, cnt, encbuf);
+ if(cnt%7) { // last encode
+ *(uint32_t*)(&encbuf[cnt]) = htobe32(sum);
+ }
+ }
+ n = base16384_encode_unsafe(encbuf, cnt, decbuf);
+ if(n && write(output, decbuf, n) < n) {
return base16384_err_write_file;
}
}
@@ -161,128 +229,232 @@ static inline int is_next_end(FILE* fp) {
return 0;
}
-base16384_err_t base16384_decode_file(const char* input, const char* output, char* encbuf, char* decbuf) {
+base16384_err_t base16384_decode_file_detailed(const char* input, const char* output, char* encbuf, char* decbuf, int flag) {
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;
+ uint32_t sum = BASE16384_SIMPLE_SUM_INIT_VALUE;
+ base16384_err_t retval = base16384_err_ok;
+ int errnobak = 0, is_stdin = is_standard_io(input);
+ if(!input || !output || strlen(input) <= 0 || strlen(output) <= 0) {
+ errno = EINVAL;
+ return base16384_err_invalid_file_name;
+ }
+ if(is_stdin) { // read from stdin
+ inputsize = _BASE16384_DECBUFSZ;
fp = stdin;
} else inputsize = get_file_size(input);
- if(inputsize < 0) {
+ if(inputsize <= 0) {
+ if(!inputsize) errno = EINVAL;
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;
+ int loop_count = 0;
+ if(inputsize >= _BASE16384_DECBUFSZ) { // stdin or big file, use decbuf & fread
+ if(!is_stdin) loop_count = inputsize/_BASE16384_DECBUFSZ;
+ inputsize = _BASE16384_DECBUFSZ;
#if defined _WIN32 || defined __cosmopolitan
}
#endif
if(!fp) fp = fopen(input, "rb");
if(!fp) {
- return base16384_err_fopen_input_file;
+ goto_base16384_file_detailed_cleanup(decode, base16384_err_fopen_input_file, {});
}
- int cnt = 0;
- int end = 0;
rm_head(fp);
+ if(errno) {
+ goto_base16384_file_detailed_cleanup(decode, base16384_err_read_file, {});
+ }
+ int cnt, last_encbuf_cnt = 0, last_decbuf_cnt = 0, offset = 0;
+ size_t total_decoded_len = 0;
while((cnt = fread(decbuf, sizeof(char), inputsize, fp)) > 0) {
+ int n;
+ while(cnt%8) {
+ n = fread(decbuf+cnt, sizeof(char), 1, fp);
+ if(n > 0) cnt++;
+ else break;
+ }
+ int end;
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(errno) goto_base16384_file_detailed_cleanup(decode, base16384_err_read_file, {});
+ offset = decbuf[cnt-1];
+ last_decbuf_cnt = cnt;
+ cnt = base16384_decode_unsafe(decbuf, cnt, encbuf);
+ if(cnt && fwrite(encbuf, cnt, 1, fpo) <= 0) {
+ goto_base16384_file_detailed_cleanup(decode, base16384_err_write_file, {});
}
+ total_decoded_len += cnt;
+ if(do_sum_check(flag)) sum = calc_sum(sum, cnt, encbuf);
+ last_encbuf_cnt = cnt;
+ }
+ if(do_sum_check(flag)
+ && (flag&BASE16384_FLAG_DO_SUM_CHECK_FORCELY || total_decoded_len >= _BASE16384_ENCBUFSZ)
+ && last_decbuf_cnt > 2
+ && decbuf[last_decbuf_cnt-2] == '='
+ && check_sum(sum, *(uint32_t*)(&encbuf[last_encbuf_cnt]), offset)) {
+ errno = EINVAL;
+ goto_base16384_file_detailed_cleanup(decode, base16384_err_invalid_decoding_checksum, {});
}
- 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;
+ goto_base16384_file_detailed_cleanup(decode, 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;
+ goto_base16384_file_detailed_cleanup(decode, base16384_err_map_input_file, close(fd));
}
- 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;
+ int n = skip_offset(input_file);
+ n = base16384_decode_safe(input_file+n, inputsize-n, encbuf);
+ if(n && fwrite(encbuf, n, 1, fpo) <= 0) {
+ goto_base16384_file_detailed_cleanup(decode, base16384_err_write_file, {
+ munmap(input_file, (size_t)inputsize);
+ close(fd);
+ });
}
munmap(input_file, (size_t)inputsize);
- if(!is_standard_io(output)) fclose(fpo);
close(fd);
}
#endif
- return base16384_err_ok;
+base16384_decode_file_detailed_cleanup:
+ if(fpo && !is_standard_io(output)) fclose(fpo);
+ if(fp && !is_stdin) fclose(fp);
+ if(errnobak) errno = errnobak;
+ return retval;
}
-base16384_err_t base16384_decode_fp(FILE* input, FILE* output, char* encbuf, char* decbuf) {
+base16384_err_t base16384_decode_fp_detailed(FILE* input, FILE* output, char* encbuf, char* decbuf, int flag) {
if(!input) {
+ errno = EINVAL;
return base16384_err_fopen_input_file;
}
if(!output) {
+ errno = EINVAL;
return base16384_err_fopen_output_file;
}
- off_t inputsize = BASE16384_DECBUFSZ/8*8;
- int cnt = 0;
- int end = 0;
+ off_t inputsize = _BASE16384_DECBUFSZ;
+ uint32_t sum = BASE16384_SIMPLE_SUM_INIT_VALUE;
rm_head(input);
+ if(errno) {
+ return base16384_err_read_file;
+ }
+ int cnt, last_encbuf_cnt = 0, last_decbuf_cnt = 0, offset = 0;
+ size_t total_decoded_len = 0;
while((cnt = fread(decbuf, sizeof(char), inputsize, input)) > 0) {
+ int n;
+ while(cnt%8) {
+ n = fread(decbuf+cnt, sizeof(char), 1, input);
+ if(n > 0) cnt++;
+ else break;
+ }
+ int end;
if((end = is_next_end(input))) {
decbuf[cnt++] = '=';
decbuf[cnt++] = end;
}
- if(fwrite(encbuf, base16384_decode(decbuf, cnt, encbuf), 1, output) <= 0) {
+ if(errno) return base16384_err_read_file;
+ offset = decbuf[cnt-1];
+ last_decbuf_cnt = cnt;
+ cnt = base16384_decode_unsafe(decbuf, cnt, encbuf);
+ if(cnt && fwrite(encbuf, cnt, 1, output) <= 0) {
return base16384_err_write_file;
}
+ total_decoded_len += cnt;
+ if(do_sum_check(flag)) sum = calc_sum(sum, cnt, encbuf);
+ last_encbuf_cnt = cnt;
+ }
+ if(do_sum_check(flag)
+ && (flag&BASE16384_FLAG_DO_SUM_CHECK_FORCELY || total_decoded_len >= _BASE16384_ENCBUFSZ)
+ && last_decbuf_cnt > 2
+ && decbuf[last_decbuf_cnt-2] == '='
+ && check_sum(sum, *(uint32_t*)(&encbuf[last_encbuf_cnt]), offset)) {
+ errno = EINVAL;
+ return base16384_err_invalid_decoding_checksum;
}
return base16384_err_ok;
}
-static inline int is_next_end_fd(int fd) {
- char ch = 0;
- read(fd, &ch, 1);
+static inline uint16_t is_next_end_fd(int fd) {
+ uint8_t ch = 0;
+ if(read(fd, &ch, 1) != 1) return (uint16_t)EOF;
+ uint16_t ret = (uint16_t)ch & 0x00ff;
if(ch == '=') {
- read(fd, &ch, 1);
+ if(read(fd, &ch, 1) != 1) return (uint16_t)EOF;
+ ret <<= 8;
+ ret |= (uint16_t)ch & 0x00ff;
}
- return (int)ch;
+ return ret;
}
-base16384_err_t base16384_decode_fd(int input, int output, char* encbuf, char* decbuf) {
+base16384_err_t base16384_decode_fd_detailed(int input, int output, char* encbuf, char* decbuf, int flag) {
if(input < 0) {
+ errno = EINVAL;
return base16384_err_fopen_input_file;
}
if(output < 0) {
+ errno = EINVAL;
return base16384_err_fopen_output_file;
}
- off_t inputsize = BASE16384_DECBUFSZ/8*8;
- int cnt = 0;
- int end = 0;
+
+ off_t inputsize = _BASE16384_DECBUFSZ;
+ uint32_t sum = BASE16384_SIMPLE_SUM_INIT_VALUE;
+ uint8_t remains[8];
+
decbuf[0] = 0;
- if(read(input, decbuf, 2) < 2) {
+ if(read(input, remains, 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) {
+
+ int p = 0;
+ if(remains[0] != (uint8_t)(0xfe)) p = 2;
+
+ int n, last_encbuf_cnt = 0, last_decbuf_cnt = 0, offset = 0;
+ size_t total_decoded_len = 0;
+ while((n = read(input, decbuf+p, inputsize-p)) > 0) {
+ if(p) {
+ memcpy(decbuf, remains, p);
+ n += p;
+ p = 0;
+ }
+ int x;
+ while(n%8) {
+ x = read(input, decbuf+n, sizeof(char));
+ if(x > 0) n++;
+ else break;
+ }
+ uint16_t next = is_next_end_fd(input);
+ if(errno) {
+ return base16384_err_read_file;
+ }
+ if((uint16_t)(~next)) {
+ if(next&0xff00) {
+ decbuf[n++] = '=';
+ decbuf[n++] = (char)(next&0x00ff);
+ } else remains[p++] = (char)(next&0x00ff);
+ }
+ offset = decbuf[n-1];
+ last_decbuf_cnt = n;
+ n = base16384_decode_unsafe(decbuf, n, encbuf);
+ if(n && write(output, encbuf, n) != n) {
return base16384_err_write_file;
}
- cnt = end;
+ total_decoded_len += n;
+ if(do_sum_check(flag)) sum = calc_sum(sum, n, encbuf);
+ last_encbuf_cnt = n;
+ }
+ if(do_sum_check(flag)
+ && (flag&BASE16384_FLAG_DO_SUM_CHECK_FORCELY || total_decoded_len >= _BASE16384_ENCBUFSZ)
+ && last_decbuf_cnt > 2
+ && decbuf[last_decbuf_cnt-2] == '='
+ && check_sum(sum, *(uint32_t*)(&encbuf[last_encbuf_cnt]), offset)) {
+ errno = EINVAL;
+ return base16384_err_invalid_decoding_checksum;
}
return base16384_err_ok;
}
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
new file mode 100644
index 0000000..bb82a5e
--- /dev/null
+++ b/test/CMakeLists.txt
@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 2.8.12)
+if (POLICY CMP0048)
+ cmake_policy(SET CMP0048 NEW)
+endif (POLICY CMP0048)
+project(base16384_test VERSION 1.0.0)
+
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/..)
+
+file (GLOB_RECURSE C_FILES "*.c")
+foreach (C_FILE ${C_FILES})
+ get_filename_component(FILE_NAME ${C_FILE} NAME_WE)
+ message(STATUS "Add test ${FILE_NAME}")
+ add_executable(${FILE_NAME} ${C_FILE})
+ target_link_libraries(${FILE_NAME} base16384_s)
+ add_test(NAME do_${FILE_NAME} COMMAND ${FILE_NAME})
+endforeach ()
diff --git a/test/coder_test.c b/test/coder_test.c
new file mode 100644
index 0000000..d20674a
--- /dev/null
+++ b/test/coder_test.c
@@ -0,0 +1,91 @@
+/* test/coder_test.c
+ * This file is part of the base16384 distribution (https://github.com/fumiama/base16384).
+ * Copyright (c) 2022-2024 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
+#include
+#include
+
+#include "base16384.h"
+
+#define TEST_SIZE (4096)
+
+char encbuf[TEST_SIZE+16];
+char decbuf[TEST_SIZE/7*8+16];
+char tstbuf[TEST_SIZE+16];
+
+#define loop_diff(target) \
+ for(i = start; i < end; i++) { \
+ if (encbuf[i] != tstbuf[i]) { \
+ if(n) { \
+ fprintf(stderr, " @%d", i); \
+ n = 0; \
+ } \
+ fprintf(stderr, " %02x", (uint8_t)(target[i])); \
+ } else if(!n) { \
+ n = 1; \
+ fprintf(stderr, " ..."); \
+ } \
+ }
+
+#define return_error(i, n) { \
+ int end = i; \
+ int start; \
+ for(start = 0; start < end; start++) { \
+ if(encbuf[start] != tstbuf[start]) break; \
+ } \
+ fprintf(stderr, "result mismatch @ loop %d, decsz: %d, first diff @ %d\n", i, n, start); \
+ fprintf(stderr, "expect"); \
+ n = 1; \
+ loop_diff(encbuf); \
+ fprintf(stderr, "\ngot "); \
+ n = 1; \
+ loop_diff(tstbuf); \
+ fputc('\n', stderr); \
+ return 1; \
+}
+
+#define test_batch(encode, decode) \
+ fputs("testing base16384_"#encode"/base16384_"#decode"...\n", stderr); \
+ for(i = 0; i <= TEST_SIZE; i++) { \
+ n = base16384_##encode(encbuf, i, decbuf); \
+ n = base16384_##decode(decbuf, n, tstbuf); \
+ if (memcmp(encbuf, tstbuf, n)) return_error(i, n); \
+ }
+
+int main() {
+ srand(time(NULL));
+ int i, n;
+ for(i = 0; i <= TEST_SIZE; i += sizeof(int)) {
+ *(int*)(&encbuf[i]) = rand();
+ }
+
+ test_batch(encode, decode);
+ test_batch(encode, decode_unsafe);
+ test_batch(encode, decode_safe);
+
+ test_batch(encode_unsafe, decode);
+ test_batch(encode_unsafe, decode_unsafe);
+ test_batch(encode_unsafe, decode_safe);
+
+ test_batch(encode_safe, decode);
+ test_batch(encode_safe, decode_unsafe);
+ test_batch(encode_safe, decode_safe);
+ return 0;
+}
diff --git a/test/file_test.c b/test/file_test.c
new file mode 100644
index 0000000..0e69266
--- /dev/null
+++ b/test/file_test.c
@@ -0,0 +1,165 @@
+/* test/file_test.c
+ * This file is part of the base16384 distribution (https://github.com/fumiama/base16384).
+ * Copyright (c) 2022-2024 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 _WIN32
+ #include
+ #define ftruncate _chsize_s
+#else
+ #define _POSIX1_SOURCE 2
+ #include
+#endif
+#include
+#include
+#include
+#include
+#include
+#include
+
+#include "base16384.h"
+#include "binary.h"
+#include "file_test.h"
+
+#define TEST_SIZE (4096)
+#define TEST_INPUT_FILENAME "file_test_input.bin"
+#define TEST_OUTPUT_FILENAME "file_test_output.bin"
+#define TEST_VALIDATE_FILENAME "file_test_validate.bin"
+
+char encbuf[BASE16384_ENCBUFSZ];
+char decbuf[BASE16384_DECBUFSZ];
+char tstbuf[BASE16384_ENCBUFSZ];
+
+#define init_input_file() \
+ for(i = 0; i < BASE16384_ENCBUFSZ; i += sizeof(int)) { \
+ *(int*)(&encbuf[i]) = rand(); \
+ } \
+ fp = fopen(TEST_INPUT_FILENAME, "wb"); \
+ ok(!fp, "fopen"); \
+ ok(fwrite(encbuf, BASE16384_ENCBUFSZ, 1, fp) != 1, "fwrite"); \
+ ok(fclose(fp), "fclose"); \
+ fputs("input file created.\n", stderr);
+
+#define test_file_detailed(flag) \
+ fputs("testing base16384_en/decode_file with flag "#flag"...\n", stderr); \
+ init_input_file(); \
+ for(i = TEST_SIZE; i > 0; i--) { \
+ reset_and_truncate(fd, i); \
+ loop_ok(close(fd), i, "close"); \
+ \
+ err = base16384_encode_file_detailed(TEST_INPUT_FILENAME, TEST_OUTPUT_FILENAME, encbuf, decbuf, flag); \
+ base16384_loop_ok(err); \
+ \
+ err = base16384_decode_file_detailed(TEST_OUTPUT_FILENAME, TEST_VALIDATE_FILENAME, encbuf, decbuf, flag); \
+ base16384_loop_ok(err); \
+ \
+ validate_result(); \
+ }
+
+#define test_fp_detailed(flag) \
+ fputs("testing base16384_en/decode_fp with flag "#flag"...\n", stderr); \
+ init_input_file(); \
+ for(i = TEST_SIZE; i > 0; i--) { \
+ reset_and_truncate(fd, i); \
+ loop_ok(close(fd), i, "close"); \
+ \
+ FILE* fpin = fopen(TEST_INPUT_FILENAME, "rb"); \
+ loop_ok(!fpin, i, "fopen"); \
+ \
+ FILE* fpout = fopen(TEST_OUTPUT_FILENAME, "wb+"); \
+ loop_ok(!fpout, i, "fopen"); \
+ \
+ err = base16384_encode_fp_detailed(fpin, fpout, encbuf, decbuf, flag); \
+ base16384_loop_ok(err); \
+ \
+ loop_ok(fclose(fpin), i, "fclose"); \
+ \
+ FILE* fpval = fopen(TEST_VALIDATE_FILENAME, "wb"); \
+ loop_ok(!fpval, i, "fopen"); \
+ \
+ rewind(fpout); \
+ \
+ err = base16384_decode_fp_detailed(fpout, fpval, encbuf, decbuf, flag); \
+ base16384_loop_ok(err); \
+ \
+ loop_ok(fclose(fpout), i, "fclose"); \
+ loop_ok(fclose(fpval), i, "fclose"); \
+ \
+ validate_result(); \
+ }
+
+#define test_fd_detailed(flag) \
+ fputs("testing base16384_en/decode_fd with flag "#flag"...\n", stderr); \
+ init_input_file(); \
+ for(i = TEST_SIZE; i > 0; i--) { \
+ reset_and_truncate(fd, i); \
+ \
+ int fdout = open(TEST_OUTPUT_FILENAME, O_RDWR|O_TRUNC|O_CREAT|O_APPEND); \
+ loop_ok(!fdout, i, "open"); \
+ \
+ err = base16384_encode_fd_detailed(fd, fdout, encbuf, decbuf, 0); \
+ base16384_loop_ok(err); \
+ loop_ok(close(fd), i, "close"); \
+ \
+ int fdval = open(TEST_VALIDATE_FILENAME, O_WRONLY|O_TRUNC|O_CREAT); \
+ loop_ok(!fdval, i, "open"); \
+ \
+ loop_ok(lseek(fdout, 0, SEEK_SET), i, "lseek"); \
+ \
+ err = base16384_decode_fd_detailed(fdout, fdval, encbuf, decbuf, 0); \
+ base16384_loop_ok(err); \
+ \
+ loop_ok(close(fdout), i, "close"); \
+ loop_ok(close(fdval), i, "close"); \
+ \
+ validate_result(); \
+ }
+
+#define test_detailed(name) \
+ test_##name##_detailed(0); \
+\
+ test_##name##_detailed(BASE16384_FLAG_NOHEADER); \
+ test_##name##_detailed(BASE16384_FLAG_SUM_CHECK_ON_REMAIN); \
+ test_##name##_detailed(BASE16384_FLAG_DO_SUM_CHECK_FORCELY); \
+\
+ test_##name##_detailed(BASE16384_FLAG_NOHEADER|BASE16384_FLAG_SUM_CHECK_ON_REMAIN); \
+ test_##name##_detailed(BASE16384_FLAG_NOHEADER|BASE16384_FLAG_DO_SUM_CHECK_FORCELY); \
+\
+ test_##name##_detailed(BASE16384_FLAG_SUM_CHECK_ON_REMAIN|BASE16384_FLAG_DO_SUM_CHECK_FORCELY); \
+\
+ test_##name##_detailed(BASE16384_FLAG_NOHEADER|BASE16384_FLAG_SUM_CHECK_ON_REMAIN|BASE16384_FLAG_DO_SUM_CHECK_FORCELY);
+
+
+#define remove_test_files() \
+ remove(TEST_INPUT_FILENAME); \
+ remove(TEST_OUTPUT_FILENAME); \
+ remove(TEST_VALIDATE_FILENAME);
+
+int main() {
+ srand(time(NULL));
+
+ FILE* fp;
+ int fd, i;
+ base16384_err_t err;
+
+ test_detailed(file);
+ test_detailed(fp);
+ test_detailed(fd);
+
+ remove_test_files();
+
+ return 0;
+}
diff --git a/test/file_test.h b/test/file_test.h
new file mode 100644
index 0000000..fd97f4d
--- /dev/null
+++ b/test/file_test.h
@@ -0,0 +1,85 @@
+#ifndef _FILE_TEST_H_
+#define _FILE_TEST_H_
+
+/* test/file_test.h
+ * This file is part of the base16384 distribution (https://github.com/fumiama/base16384).
+ * Copyright (c) 2022-2024 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 .
+ */
+
+#define ok(has_failed, reason) \
+ if (has_failed) { \
+ perror(reason); \
+ return 1; \
+ }
+
+#define loop_ok(has_failed, i, reason) \
+ if (has_failed) { \
+ fprintf(stderr, "loop @%d: ", i); \
+ perror(reason); \
+ return 1; \
+ }
+
+#define reset_and_truncate(fd, i) { \
+ fd = open(TEST_INPUT_FILENAME, O_RDWR); \
+ ok(!fd, "open"); \
+ loop_ok(lseek(fd, 0, SEEK_SET), i, "lseek"); \
+ loop_ok(ftruncate(fd, i), i, "ftruncate"); \
+}
+
+#define base16384_loop_ok(err) \
+ if (err) { \
+ fprintf(stderr, "loop @%d: ", i); \
+ base16384_perror(err); \
+ return 1; \
+ }
+
+#define validate_result() \
+ uint64_t buf, sum_input = 0, sum_validate = 0; \
+ fp = fopen(TEST_INPUT_FILENAME, "rb"); { \
+ loop_ok(!fp, i, "fopen"); \
+ int cnt; \
+ while ((cnt = fread(&buf, 1, sizeof(sum_input), fp)) > 0) { \
+ int n; \
+ buf = 0; \
+ while(cnt < sizeof(sum_input)) { \
+ n = fread((uint8_t*)(&buf)+cnt, 1, 1, fp); \
+ if (n) cnt++; \
+ else break; \
+ } \
+ sum_input += buf; \
+ } \
+ } fclose(fp); \
+ fp = fopen(TEST_VALIDATE_FILENAME, "rb"); { \
+ loop_ok(!fp, i, "fopen"); \
+ int cnt; \
+ while ((cnt = fread(&buf, 1, sizeof(sum_validate), fp)) > 0) { \
+ int n; \
+ buf = 0; \
+ while(cnt < sizeof(sum_validate)) { \
+ n = fread((uint8_t*)(&buf)+cnt, 1, 1, fp); \
+ if (n) cnt++; \
+ else break; \
+ } \
+ sum_validate += buf; \
+ } \
+ } fclose(fp); \
+ if (sum_input != sum_validate) { \
+ fprintf(stderr, "loop @%d, expect: %016llx, got: %016llx: ", i, (unsigned long long)sum_input, (unsigned long long)sum_validate); \
+ fputs(TEST_INPUT_FILENAME " and " TEST_VALIDATE_FILENAME " mismatch.", stderr); \
+ return 1; \
+ }
+
+#endif
\ No newline at end of file
diff --git a/test/wrap_test.c b/test/wrap_test.c
new file mode 100644
index 0000000..2e87067
--- /dev/null
+++ b/test/wrap_test.c
@@ -0,0 +1,140 @@
+/* test/wrap_test.c
+ * This file is part of the base16384 distribution (https://github.com/fumiama/base16384).
+ * Copyright (c) 2022-2024 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 _WIN32
+ #include
+ #define ftruncate _chsize_s
+#else
+ #define _POSIX1_SOURCE 2
+ #include
+#endif
+#include
+#include
+#include
+#include
+#include
+#include
+
+#include "base16384.h"
+#include "binary.h"
+#include "file_test.h"
+
+#define TEST_SIZE (4096)
+#define TEST_INPUT_FILENAME "wrap_test_input.bin"
+#define TEST_OUTPUT_FILENAME "wrap_test_output.bin"
+#define TEST_VALIDATE_FILENAME "wrap_test_validate.bin"
+
+char encbuf[BASE16384_ENCBUFSZ];
+char decbuf[BASE16384_DECBUFSZ];
+char tstbuf[BASE16384_ENCBUFSZ];
+
+#define init_input_file() \
+ for(i = 0; i < BASE16384_ENCBUFSZ; i += sizeof(int)) { \
+ *(int*)(&encbuf[i]) = rand(); \
+ } \
+ fp = fopen(TEST_INPUT_FILENAME, "wb"); \
+ ok(!fp, "fopen"); \
+ ok(fwrite(encbuf, BASE16384_ENCBUFSZ, 1, fp) != 1, "fwrite"); \
+ ok(fclose(fp), "fclose"); \
+ fputs("input file created.\n", stderr);
+
+int main() {
+ srand(time(NULL));
+
+ FILE* fp;
+ int fd, i;
+ base16384_err_t err;
+
+ fputs("testing base16384_en/decode_file...\n", stderr);
+ init_input_file();
+ for(i = TEST_SIZE; i > 0; i--) {
+ reset_and_truncate(fd, i);
+ loop_ok(close(fd), i, "close");
+
+ err = base16384_encode_file(TEST_INPUT_FILENAME, TEST_OUTPUT_FILENAME, encbuf, decbuf);
+ base16384_loop_ok(err);
+
+ err = base16384_decode_file(TEST_OUTPUT_FILENAME, TEST_VALIDATE_FILENAME, encbuf, decbuf);
+ base16384_loop_ok(err);
+
+ validate_result();
+ }
+
+ fputs("testing base16384_en/decode_fp...\n", stderr);
+ init_input_file();
+ for(i = TEST_SIZE; i > 0; i--) {
+ reset_and_truncate(fd, i);
+ loop_ok(close(fd), i, "close");
+
+ FILE* fpin = fopen(TEST_INPUT_FILENAME, "rb");
+ loop_ok(!fpin, i, "fopen");
+
+ FILE* fpout = fopen(TEST_OUTPUT_FILENAME, "wb+");
+ loop_ok(!fpout, i, "fopen");
+
+ err = base16384_encode_fp(fpin, fpout, encbuf, decbuf);
+ base16384_loop_ok(err);
+
+ loop_ok(fclose(fpin), i, "fclose");
+
+ FILE* fpval = fopen(TEST_VALIDATE_FILENAME, "wb");
+ loop_ok(!fpval, i, "fopen");
+
+ rewind(fpout);
+
+ err = base16384_decode_fp(fpout, fpval, encbuf, decbuf);
+ base16384_loop_ok(err);
+
+ loop_ok(fclose(fpout), i, "fclose");
+ loop_ok(fclose(fpval), i, "fclose");
+
+ validate_result();
+ }
+
+ fputs("testing base16384_en/decode_fd...\n", stderr);
+ init_input_file();
+ for(i = TEST_SIZE; i > 0; i--) {
+ reset_and_truncate(fd, i);
+
+ int fdout = open(TEST_OUTPUT_FILENAME, O_RDWR|O_TRUNC|O_CREAT|O_APPEND);
+ loop_ok(!fdout, i, "open");
+
+ err = base16384_encode_fd(fd, fdout, encbuf, decbuf);
+ base16384_loop_ok(err);
+ loop_ok(close(fd), i, "close");
+
+ int fdval = open(TEST_VALIDATE_FILENAME, O_WRONLY|O_TRUNC|O_CREAT);
+ loop_ok(!fdval, i, "open");
+
+ loop_ok(lseek(fdout, 0, SEEK_SET), i, "lseek");
+
+ err = base16384_decode_fd(fdout, fdval, encbuf, decbuf);
+ base16384_loop_ok(err);
+
+ loop_ok(close(fdout), i, "close");
+ loop_ok(close(fdval), i, "close");
+
+ validate_result();
+ }
+
+ remove(TEST_INPUT_FILENAME);
+ remove(TEST_OUTPUT_FILENAME);
+ remove(TEST_VALIDATE_FILENAME);
+
+ return 0;
+}
diff --git a/wrap.c b/wrap.c
new file mode 100644
index 0000000..5358b5f
--- /dev/null
+++ b/wrap.c
@@ -0,0 +1,38 @@
+/* wrap.c
+ * This file is part of the base16384 distribution (https://github.com/fumiama/base16384).
+ * Copyright (c) 2022-2024 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 "base16384.h"
+
+#define base16384_typed_params(type) type input, type output, char* encbuf, char* decbuf
+
+#define BASE16384_WRAP_DECL(method, name, type) \
+ base16384_err_t base16384_##method##_##name(base16384_typed_params(type)) { \
+ return base16384_##method##_##name##_detailed(input, output, encbuf, decbuf, 0); \
+ }
+
+ BASE16384_WRAP_DECL(encode, file, const char*);
+ BASE16384_WRAP_DECL(encode, fp, FILE*);
+ BASE16384_WRAP_DECL(encode, fd, int);
+
+ BASE16384_WRAP_DECL(decode, file, const char*);
+ BASE16384_WRAP_DECL(decode, fp, FILE*);
+ BASE16384_WRAP_DECL(decode, fd, int);
+
+#undef BASE16384_WRAP_DECL
+
+#undef base16384_typed_params