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decompress_plugin_demo.h
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decompress_plugin_demo.h
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//decompress_plugin_demo.h
// decompress plugin demo for HDiffz\HPatchz
/*
The MIT License (MIT)
Copyright (c) 2012-2017 HouSisong
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 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.
*/
#ifndef HPatch_decompress_plugin_demo_h
#define HPatch_decompress_plugin_demo_h
//decompress plugin demo:
// zlibDecompressPlugin;
// bz2DecompressPlugin;
// lzmaDecompressPlugin;
// lzma2DecompressPlugin;
// lz4DecompressPlugin;
// zstdDecompressPlugin;
// brotliDecompressPlugin;
// lzhamDecompressPlugin;
// tuzDecompressPlugin;
// _bz2DecompressPlugin_unsz : support for bspatch_with_cache()
// _7zXZDecompressPlugin : support for vcpatch_with_cache(), diffData created by "xdelta3 -S lzma ..."
// _7zXZDecompressPlugin_a : support for vcpatch_with_cache(), diffData created by "hdiffz -VCD-compressLevel ..."
#include <stdlib.h> //malloc free
#include <stdio.h> //fprintf
#include "libHDiffPatch/HPatch/patch_types.h"
#ifndef kDecompressBufSize
# define kDecompressBufSize (1024*32)
#endif
#ifndef _IsNeedIncludeDefaultCompressHead
# define _IsNeedIncludeDefaultCompressHead 1
#endif
#define _dec_memErr() _hpatch_update_decError(decompressPlugin,hpatch_dec_mem_error)
#define _dec_memErr_rt() do { _dec_memErr(); return 0; } while(0)
#define _dec_openErr_rt() do { _hpatch_update_decError(decompressPlugin,hpatch_dec_open_error); return 0; } while(0)
#define _dec_close_check(value) { if (!(value)) { LOG_ERR("check "#value " ERROR!\n"); \
result=hpatch_FALSE; _hpatch_update_decError(decompressPlugin,hpatch_dec_close_error); } }
#define _dec_onDecErr_rt() do { if (!(self)->decError) (self)->decError=hpatch_dec_error; return 0; } while(0)
#define _dec_onDecErr_up() do { if ((self)->decError) _hpatch_update_decError(decompressPlugin,(self)->decError); } while(0)
static void* _dec_malloc(hpatch_size_t size) {
void* result=malloc(size);
if (!result) LOG_ERRNO(errno);
return result;
}
#define __dec_Alloc_fun(_type_TDecompress,p,size) { \
void* result=_dec_malloc(size); \
if (!result) \
((_type_TDecompress*)p)->decError=hpatch_dec_mem_error; \
return result; }
static void __dec_free(void* _, void* address){
if (address) free(address); }
#ifdef _CompressPlugin_zlib
#if (_IsNeedIncludeDefaultCompressHead)
# include "zlib.h" // http:https://zlib.net/ https://github.com/madler/zlib
#endif
typedef struct _zlib_TDecompress{
hpatch_StreamPos_t code_begin;
hpatch_StreamPos_t code_end;
const struct hpatch_TStreamInput* codeStream;
unsigned char* dec_buf;
size_t dec_buf_size;
z_stream d_stream;
signed char windowBits;
hpatch_dec_error_t decError;
} _zlib_TDecompress;
static void * __zlib_dec_Alloc(void* p,uInt items,uInt size)
__dec_Alloc_fun(_zlib_TDecompress,p,((items)*(size_t)(size)))
static hpatch_BOOL _zlib_is_can_open(const char* compressType){
return (0==strcmp(compressType,"zlib"))||(0==strcmp(compressType,"pzlib"));
}
static _zlib_TDecompress* _zlib_decompress_open_at(hpatch_TDecompress* decompressPlugin,
const hpatch_TStreamInput* codeStream,
hpatch_StreamPos_t code_begin,
hpatch_StreamPos_t code_end,
int isSavedWindowBits,
_zlib_TDecompress* self,size_t _self_and_buf_size){
int ret;
signed char kWindowBits=-MAX_WBITS;
assert(_self_and_buf_size>sizeof(_zlib_TDecompress));
if (isSavedWindowBits){//load kWindowBits
if (code_end-code_begin<1) _dec_openErr_rt();
if (!codeStream->read(codeStream,code_begin,(unsigned char*)&kWindowBits,
(unsigned char*)&kWindowBits+1)) return 0;
++code_begin;
}
memset(self,0,sizeof(_zlib_TDecompress));
self->dec_buf=((unsigned char*)self)+sizeof(_zlib_TDecompress);
self->dec_buf_size=_self_and_buf_size-sizeof(_zlib_TDecompress);
self->codeStream=codeStream;
self->code_begin=code_begin;
self->code_end=code_end;
self->windowBits=kWindowBits;
self->d_stream.zalloc=__zlib_dec_Alloc;
self->d_stream.zfree=__dec_free;
self->d_stream.opaque=self;
ret = inflateInit2(&self->d_stream,self->windowBits);
if (ret!=Z_OK) { _dec_onDecErr_up(); _dec_openErr_rt(); }
return self;
}
static hpatch_decompressHandle _zlib_decompress_open(hpatch_TDecompress* decompressPlugin,
hpatch_StreamPos_t dataSize,
const hpatch_TStreamInput* codeStream,
hpatch_StreamPos_t code_begin,
hpatch_StreamPos_t code_end){
_zlib_TDecompress* self=0;
unsigned char* _mem_buf=(unsigned char*)_dec_malloc(sizeof(_zlib_TDecompress)+kDecompressBufSize);
if (!_mem_buf) _dec_memErr_rt();
self=_zlib_decompress_open_at(decompressPlugin,codeStream,code_begin,code_end,1,
(_zlib_TDecompress*)_mem_buf,sizeof(_zlib_TDecompress)+kDecompressBufSize);
if (!self)
free(_mem_buf);
return self;
}
static hpatch_decompressHandle _zlib_decompress_open_deflate(hpatch_TDecompress* decompressPlugin,
hpatch_StreamPos_t dataSize,
const hpatch_TStreamInput* codeStream,
hpatch_StreamPos_t code_begin,
hpatch_StreamPos_t code_end){
_zlib_TDecompress* self=0;
unsigned char* _mem_buf=(unsigned char*)_dec_malloc(sizeof(_zlib_TDecompress)+kDecompressBufSize);
if (!_mem_buf) _dec_memErr_rt();
self=_zlib_decompress_open_at(decompressPlugin,codeStream,code_begin,code_end,0,
(_zlib_TDecompress*)_mem_buf,sizeof(_zlib_TDecompress)+kDecompressBufSize);
if (!self)
free(_mem_buf);
return self;
}
static _zlib_TDecompress* _zlib_decompress_open_by(hpatch_TDecompress* decompressPlugin,
const hpatch_TStreamInput* codeStream,
hpatch_StreamPos_t code_begin,
hpatch_StreamPos_t code_end,
int isSavedWindowBits,
unsigned char* _mem_buf,size_t _mem_buf_size){
#define __MAX_TS(a,b) ((a)>=(b)?(a):(b))
const hpatch_size_t kZlibAlign=__MAX_TS(__MAX_TS(sizeof(hpatch_StreamPos_t),sizeof(void*)),sizeof(uLongf));
#undef __MAX_TS
unsigned char* _mem_buf_end=_mem_buf+_mem_buf_size;
unsigned char* self_at=(unsigned char*)_hpatch_align_upper(_mem_buf,kZlibAlign);
if (self_at>=_mem_buf_end) return 0;
return _zlib_decompress_open_at(decompressPlugin,codeStream,code_begin,code_end,isSavedWindowBits,
(_zlib_TDecompress*)self_at,_mem_buf_end-self_at);
}
static hpatch_BOOL _zlib_decompress_close_by(struct hpatch_TDecompress* decompressPlugin,
_zlib_TDecompress* self){
hpatch_BOOL result=hpatch_TRUE;
if (!self) return result;
_dec_onDecErr_up();
if (self->d_stream.state!=0){
_dec_close_check(Z_OK==inflateEnd(&self->d_stream));
}
memset(self,0,sizeof(_zlib_TDecompress));
return result;
}
static hpatch_BOOL _zlib_decompress_close(struct hpatch_TDecompress* decompressPlugin,
hpatch_decompressHandle decompressHandle){
_zlib_TDecompress* self=(_zlib_TDecompress*)decompressHandle;
hpatch_BOOL result=_zlib_decompress_close_by(decompressPlugin,self);
if (self) free(self);
return result;
}
static hpatch_BOOL _zlib_reset_for_next_node(_zlib_TDecompress* self){
//backup
Bytef* next_out_back=self->d_stream.next_out;
Bytef* next_in_back=self->d_stream.next_in;
unsigned int avail_out_back=self->d_stream.avail_out;
unsigned int avail_in_back=self->d_stream.avail_in;
//reset
if (Z_OK!=inflateReset(&self->d_stream)) _dec_onDecErr_rt();
//restore
self->d_stream.next_out=next_out_back;
self->d_stream.next_in=next_in_back;
self->d_stream.avail_out=avail_out_back;
self->d_stream.avail_in=avail_in_back;
return hpatch_TRUE;
}
static hpatch_BOOL __zlib_do_inflate(hpatch_decompressHandle decompressHandle){
_zlib_TDecompress* self=(_zlib_TDecompress*)decompressHandle;
uInt avail_out_back,avail_in_back;
int ret;
hpatch_StreamPos_t codeLen=(self->code_end - self->code_begin);
if ((self->d_stream.avail_in==0)&&(codeLen>0)) {
size_t readLen=self->dec_buf_size;
if (readLen>codeLen) readLen=(size_t)codeLen;
self->d_stream.next_in=self->dec_buf;
if (!self->codeStream->read(self->codeStream,self->code_begin,self->dec_buf,
self->dec_buf+readLen)) return hpatch_FALSE;//error;
self->d_stream.avail_in=(uInt)readLen;
self->code_begin+=readLen;
codeLen-=readLen;
}
avail_out_back=self->d_stream.avail_out;
avail_in_back=self->d_stream.avail_in;
ret=inflate(&self->d_stream,Z_NO_FLUSH);
if (ret==Z_OK){
if ((self->d_stream.avail_in==avail_in_back)&&(self->d_stream.avail_out==avail_out_back))
_dec_onDecErr_rt();//error;
}else if (ret==Z_STREAM_END){
if (self->d_stream.avail_in+codeLen>0){ //next compress node!
if (!_zlib_reset_for_next_node(self))
return hpatch_FALSE;//error;
}else{//all end
if (self->d_stream.avail_out!=0)
_dec_onDecErr_rt();//error;
}
}else{
_dec_onDecErr_rt();//error;
}
return hpatch_TRUE;
}
static hpatch_BOOL _zlib_decompress_part(hpatch_decompressHandle decompressHandle,
unsigned char* out_part_data,unsigned char* out_part_data_end){
_zlib_TDecompress* self=(_zlib_TDecompress*)decompressHandle;
assert(out_part_data<=out_part_data_end);
self->d_stream.next_out = out_part_data;
self->d_stream.avail_out =(uInt)(out_part_data_end-out_part_data);
while (self->d_stream.avail_out>0) {
if (!__zlib_do_inflate(self))
return hpatch_FALSE;//error;
}
return hpatch_TRUE;
}
static hpatch_inline int _zlib_is_decompress_finish(const hpatch_TDecompress* decompressPlugin,
hpatch_decompressHandle decompressHandle){
_zlib_TDecompress* self=(_zlib_TDecompress*)decompressHandle;
while (self->code_begin!=self->code_end){ //for end tag code
unsigned char _empty;
self->d_stream.next_out = &_empty;
self->d_stream.avail_out=0;
if (!__zlib_do_inflate(self))
return hpatch_FALSE;//error;
}
return (self->code_begin==self->code_end)
&(self->d_stream.avail_in==0)
&(self->d_stream.avail_out==0);
}
static hpatch_TDecompress zlibDecompressPlugin={_zlib_is_can_open,_zlib_decompress_open,
_zlib_decompress_close,_zlib_decompress_part};
static hpatch_TDecompress zlibDecompressPlugin_deflate={_zlib_is_can_open,_zlib_decompress_open_deflate,
_zlib_decompress_close,_zlib_decompress_part};
#endif//_CompressPlugin_zlib
#ifdef _CompressPlugin_bz2
#if (_IsNeedIncludeDefaultCompressHead)
# include "bzlib.h" // http:https://www.bzip.org/ https://github.com/sisong/bzip2
#endif
typedef struct _bz2_TDecompress{
const struct hpatch_TStreamInput* codeStream;
hpatch_StreamPos_t code_begin;
hpatch_StreamPos_t code_end;
bz_stream d_stream;
hpatch_dec_error_t decError;
unsigned char dec_buf[kDecompressBufSize];
} _bz2_TDecompress;
static hpatch_BOOL _bz2_is_can_open(const char* compressType){
return (0==strcmp(compressType,"bz2"))||(0==strcmp(compressType,"bzip2"))
||(0==strcmp(compressType,"pbz2"))||(0==strcmp(compressType,"pbzip2"));
}
static hpatch_decompressHandle _bz2_open(struct hpatch_TDecompress* decompressPlugin,
hpatch_StreamPos_t dataSize,
const hpatch_TStreamInput* codeStream,
hpatch_StreamPos_t code_begin,
hpatch_StreamPos_t code_end){
int ret;
_bz2_TDecompress* self=(_bz2_TDecompress*)_dec_malloc(sizeof(_bz2_TDecompress));
if (!self) _dec_memErr_rt();
memset(self,0,sizeof(_bz2_TDecompress)-kDecompressBufSize);
self->codeStream=codeStream;
self->code_begin=code_begin;
self->code_end=code_end;
ret=BZ2_bzDecompressInit(&self->d_stream,0,0);
if (ret!=BZ_OK){ free(self); _dec_openErr_rt(); }
return self;
}
static hpatch_BOOL _bz2_close(struct hpatch_TDecompress* decompressPlugin,
hpatch_decompressHandle decompressHandle){
hpatch_BOOL result=hpatch_TRUE;
_bz2_TDecompress* self=(_bz2_TDecompress*)decompressHandle;
if (!self) return result;
_dec_onDecErr_up();
_dec_close_check(BZ_OK==BZ2_bzDecompressEnd(&self->d_stream));
free(self);
return result;
}
static hpatch_BOOL _bz2_reset_for_next_node(_bz2_TDecompress* self){
//backup
char* next_out_back=self->d_stream.next_out;
char* next_in_back=self->d_stream.next_in;
unsigned int avail_out_back=self->d_stream.avail_out;
unsigned int avail_in_back=self->d_stream.avail_in;
//reset
if (BZ_OK!=BZ2_bzDecompressEnd(&self->d_stream)) _dec_onDecErr_rt();
if (BZ_OK!=BZ2_bzDecompressInit(&self->d_stream,0,0)) _dec_onDecErr_rt();
//restore
self->d_stream.next_out=next_out_back;
self->d_stream.next_in=next_in_back;
self->d_stream.avail_out=avail_out_back;
self->d_stream.avail_in=avail_in_back;
return hpatch_TRUE;
}
static hpatch_BOOL _bz2_decompress_part_(hpatch_decompressHandle decompressHandle,
unsigned char* out_part_data,unsigned char* out_part_data_end,
hpatch_BOOL isMustOutData){
_bz2_TDecompress* self=(_bz2_TDecompress*)decompressHandle;
assert(out_part_data<=out_part_data_end);
self->d_stream.next_out =(char*)out_part_data;
self->d_stream.avail_out =(unsigned int)(out_part_data_end-out_part_data);
while (self->d_stream.avail_out>0) {
unsigned int avail_out_back,avail_in_back;
int ret;
hpatch_StreamPos_t codeLen=(self->code_end - self->code_begin);
if ((self->d_stream.avail_in==0)&&(codeLen>0)) {
size_t readLen=kDecompressBufSize;
self->d_stream.next_in=(char*)self->dec_buf;
if (readLen>codeLen) readLen=(size_t)codeLen;
if (!self->codeStream->read(self->codeStream,self->code_begin,self->dec_buf,
self->dec_buf+readLen)) return hpatch_FALSE;//error;
self->d_stream.avail_in=(unsigned int)readLen;
self->code_begin+=readLen;
codeLen-=readLen;
}
avail_out_back=self->d_stream.avail_out;
avail_in_back=self->d_stream.avail_in;
ret=BZ2_bzDecompress(&self->d_stream);
if (ret==BZ_OK){
if ((self->d_stream.avail_in==avail_in_back)&&(self->d_stream.avail_out==avail_out_back))
_dec_onDecErr_rt();//error;
}else if (ret==BZ_STREAM_END){
if (self->d_stream.avail_in+codeLen>0){ //next compress node!
if (!_bz2_reset_for_next_node(self))
return hpatch_FALSE;//error;
}else{//all end
if (self->d_stream.avail_out!=0){
if (isMustOutData){ //fill out 0
memset(self->d_stream.next_out,0,self->d_stream.avail_out);
self->d_stream.next_out+=self->d_stream.avail_out;
self->d_stream.avail_out=0;
}else{
_dec_onDecErr_rt();//error;
}
}
}
}else{
_dec_onDecErr_rt();//error;
}
}
return hpatch_TRUE;
}
static hpatch_BOOL _bz2_decompress_part(hpatch_decompressHandle decompressHandle,
unsigned char* out_part_data,unsigned char* out_part_data_end){
return _bz2_decompress_part_(decompressHandle,out_part_data,out_part_data_end,hpatch_FALSE);
}
static hpatch_BOOL _bz2_decompress_part_unsz(hpatch_decompressHandle decompressHandle,
unsigned char* out_part_data,unsigned char* out_part_data_end){
return _bz2_decompress_part_(decompressHandle,out_part_data,out_part_data_end,hpatch_TRUE);
}
static hpatch_TDecompress bz2DecompressPlugin={_bz2_is_can_open,_bz2_open,
_bz2_close,_bz2_decompress_part};
//unkown uncompress data size
static hpatch_TDecompress _bz2DecompressPlugin_unsz={_bz2_is_can_open,_bz2_open,
_bz2_close,_bz2_decompress_part_unsz};
#endif//_CompressPlugin_bz2
#if (defined _CompressPlugin_lzma) || (defined _CompressPlugin_lzma2)
#if (_IsNeedIncludeDefaultCompressHead)
# include "LzmaDec.h" // "lzma/C/LzmaDec.h" https://github.com/sisong/lzma
# ifdef _CompressPlugin_lzma2
# include "Lzma2Dec.h"
# endif
#endif
#endif
#ifdef _CompressPlugin_lzma
typedef struct _lzma_TDecompress{
ISzAlloc memAllocBase;
const struct hpatch_TStreamInput* codeStream;
hpatch_StreamPos_t code_begin;
hpatch_StreamPos_t code_end;
CLzmaDec decEnv;
SizeT decCopyPos;
SizeT decReadPos;
hpatch_dec_error_t decError;
unsigned char dec_buf[kDecompressBufSize];
} _lzma_TDecompress;
static void * __lzma1_dec_Alloc(ISzAllocPtr p, size_t size)
__dec_Alloc_fun(_lzma_TDecompress,p,size)
static hpatch_BOOL _lzma_is_can_open(const char* compressType){
return (0==strcmp(compressType,"lzma"));
}
static hpatch_decompressHandle _lzma_open(hpatch_TDecompress* decompressPlugin,
hpatch_StreamPos_t dataSize,
const hpatch_TStreamInput* codeStream,
hpatch_StreamPos_t code_begin,
hpatch_StreamPos_t code_end){
_lzma_TDecompress* self=0;
SRes ret;
unsigned char propsSize=0;
unsigned char props[256];
//load propsSize
if (code_end-code_begin<1) _dec_openErr_rt();
if (!codeStream->read(codeStream,code_begin,&propsSize,&propsSize+1)) return 0;
++code_begin;
if (propsSize>(code_end-code_begin)) _dec_openErr_rt();
//load props
if (!codeStream->read(codeStream,code_begin,props,props+propsSize)) return 0;
code_begin+=propsSize;
self=(_lzma_TDecompress*)_dec_malloc(sizeof(_lzma_TDecompress));
if (!self) _dec_memErr_rt();
memset(self,0,sizeof(_lzma_TDecompress)-kDecompressBufSize);
self->memAllocBase.Alloc=__lzma1_dec_Alloc;
*((void**)&self->memAllocBase.Free)=(void*)__dec_free;
self->codeStream=codeStream;
self->code_begin=code_begin;
self->code_end=code_end;
self->decCopyPos=0;
self->decReadPos=kDecompressBufSize;
LzmaDec_Construct(&self->decEnv);
ret=LzmaDec_Allocate(&self->decEnv,props,propsSize,&self->memAllocBase);
if (ret!=SZ_OK){ _dec_onDecErr_up(); free(self); _dec_openErr_rt(); }
LzmaDec_Init(&self->decEnv);
return self;
}
static hpatch_BOOL _lzma_close(struct hpatch_TDecompress* decompressPlugin,
hpatch_decompressHandle decompressHandle){
_lzma_TDecompress* self=(_lzma_TDecompress*)decompressHandle;
if (!self) return hpatch_TRUE;
LzmaDec_Free(&self->decEnv,&self->memAllocBase);
_dec_onDecErr_up();
free(self);
return hpatch_TRUE;
}
static hpatch_BOOL _lzma_decompress_part(hpatch_decompressHandle decompressHandle,
unsigned char* out_part_data,unsigned char* out_part_data_end){
_lzma_TDecompress* self=(_lzma_TDecompress*)decompressHandle;
unsigned char* out_cur=out_part_data;
assert(out_part_data<=out_part_data_end);
while (out_cur<out_part_data_end){
size_t copyLen=(self->decEnv.dicPos-self->decCopyPos);
if (copyLen>0){
if (copyLen>(size_t)(out_part_data_end-out_cur))
copyLen=(out_part_data_end-out_cur);
memcpy(out_cur,self->decEnv.dic+self->decCopyPos,copyLen);
out_cur+=copyLen;
self->decCopyPos+=copyLen;
if ((self->decEnv.dicPos==self->decEnv.dicBufSize)
&&(self->decEnv.dicPos==self->decCopyPos)){
self->decEnv.dicPos=0;
self->decCopyPos=0;
}
}else{
ELzmaStatus status;
SizeT inSize,dicPos_back;
SRes res;
hpatch_StreamPos_t codeLen=(self->code_end - self->code_begin);
if ((self->decReadPos==kDecompressBufSize)&&(codeLen>0)) {
size_t readLen=kDecompressBufSize;
if (readLen>codeLen) readLen=(size_t)codeLen;
self->decReadPos=kDecompressBufSize-readLen;
if (!self->codeStream->read(self->codeStream,self->code_begin,self->dec_buf+self->decReadPos,
self->dec_buf+self->decReadPos+readLen)) return hpatch_FALSE;//error;
self->code_begin+=readLen;
}
inSize=kDecompressBufSize-self->decReadPos;
dicPos_back=self->decEnv.dicPos;
res=LzmaDec_DecodeToDic(&self->decEnv,self->decEnv.dicBufSize,
self->dec_buf+self->decReadPos,&inSize,LZMA_FINISH_ANY,&status);
if(res==SZ_OK){
if ((inSize==0)&&(self->decEnv.dicPos==dicPos_back))
_dec_onDecErr_rt();//error;
}else{
_dec_onDecErr_rt();//error;
}
self->decReadPos+=inSize;
}
}
return hpatch_TRUE;
}
static hpatch_TDecompress lzmaDecompressPlugin={_lzma_is_can_open,_lzma_open,
_lzma_close,_lzma_decompress_part};
#endif//_CompressPlugin_lzma
#ifdef _CompressPlugin_lzma2
typedef struct _lzma2_TDecompress{
ISzAlloc memAllocBase;
const struct hpatch_TStreamInput* codeStream;
hpatch_StreamPos_t code_begin;
hpatch_StreamPos_t code_end;
CLzma2Dec decEnv;
SizeT decCopyPos;
SizeT decReadPos;
hpatch_dec_error_t decError;
unsigned char dec_buf[kDecompressBufSize];
} _lzma2_TDecompress;
static void * __lzma2_dec_Alloc(ISzAllocPtr p, size_t size)
__dec_Alloc_fun(_lzma2_TDecompress,p,size)
static hpatch_BOOL _lzma2_is_can_open(const char* compressType){
return (0==strcmp(compressType,"lzma2"));
}
static hpatch_decompressHandle _lzma2_open(hpatch_TDecompress* decompressPlugin,
hpatch_StreamPos_t dataSize,
const hpatch_TStreamInput* codeStream,
hpatch_StreamPos_t code_begin,
hpatch_StreamPos_t code_end){
_lzma2_TDecompress* self=0;
SRes ret;
unsigned char propsSize=0;
//load propsSize
if (code_end-code_begin<1) _dec_openErr_rt();
if (!codeStream->read(codeStream,code_begin,&propsSize,&propsSize+1)) return 0;
++code_begin;
self=(_lzma2_TDecompress*)_dec_malloc(sizeof(_lzma2_TDecompress));
if (!self) _dec_memErr_rt();
memset(self,0,sizeof(_lzma2_TDecompress)-kDecompressBufSize);
self->memAllocBase.Alloc=__lzma2_dec_Alloc;
*((void**)&self->memAllocBase.Free)=(void*)__dec_free;
self->codeStream=codeStream;
self->code_begin=code_begin;
self->code_end=code_end;
self->decCopyPos=0;
self->decReadPos=kDecompressBufSize;
Lzma2Dec_Construct(&self->decEnv);
ret=Lzma2Dec_Allocate(&self->decEnv,propsSize,&self->memAllocBase);
if (ret!=SZ_OK){ _dec_onDecErr_up(); free(self); _dec_openErr_rt(); }
Lzma2Dec_Init(&self->decEnv);
return self;
}
static hpatch_BOOL _lzma2_close(struct hpatch_TDecompress* decompressPlugin,
hpatch_decompressHandle decompressHandle){
_lzma2_TDecompress* self=(_lzma2_TDecompress*)decompressHandle;
if (!self) return hpatch_TRUE;
Lzma2Dec_Free(&self->decEnv,&self->memAllocBase);
_dec_onDecErr_up();
free(self);
return hpatch_TRUE;
}
static hpatch_BOOL _lzma2_decompress_part(hpatch_decompressHandle decompressHandle,
unsigned char* out_part_data,unsigned char* out_part_data_end){
_lzma2_TDecompress* self=(_lzma2_TDecompress*)decompressHandle;
unsigned char* out_cur=out_part_data;
assert(out_part_data<=out_part_data_end);
while (out_cur<out_part_data_end){
size_t copyLen=(self->decEnv.decoder.dicPos-self->decCopyPos);
if (copyLen>0){
if (copyLen>(size_t)(out_part_data_end-out_cur))
copyLen=(out_part_data_end-out_cur);
memcpy(out_cur,self->decEnv.decoder.dic+self->decCopyPos,copyLen);
out_cur+=copyLen;
self->decCopyPos+=copyLen;
if ((self->decEnv.decoder.dicPos==self->decEnv.decoder.dicBufSize)
&&(self->decEnv.decoder.dicPos==self->decCopyPos)){
self->decEnv.decoder.dicPos=0;
self->decCopyPos=0;
}
}else{
ELzmaStatus status;
SizeT inSize,dicPos_back;
SRes res;
hpatch_StreamPos_t codeLen=(self->code_end - self->code_begin);
if ((self->decReadPos==kDecompressBufSize)&&(codeLen>0)) {
size_t readLen=kDecompressBufSize;
if (readLen>codeLen) readLen=(size_t)codeLen;
self->decReadPos=kDecompressBufSize-readLen;
if (!self->codeStream->read(self->codeStream,self->code_begin,self->dec_buf+self->decReadPos,
self->dec_buf+self->decReadPos+readLen)) return hpatch_FALSE;//error;
self->code_begin+=readLen;
}
inSize=kDecompressBufSize-self->decReadPos;
dicPos_back=self->decEnv.decoder.dicPos;
res=Lzma2Dec_DecodeToDic(&self->decEnv,self->decEnv.decoder.dicBufSize,
self->dec_buf+self->decReadPos,&inSize,LZMA_FINISH_ANY,&status);
if(res==SZ_OK){
if ((inSize==0)&&(self->decEnv.decoder.dicPos==dicPos_back))
_dec_onDecErr_rt();//error;
}else{
_dec_onDecErr_rt();//error;
}
self->decReadPos+=inSize;
}
}
return hpatch_TRUE;
}
static hpatch_TDecompress lzma2DecompressPlugin={_lzma2_is_can_open,_lzma2_open,
_lzma2_close,_lzma2_decompress_part};
#endif//_CompressPlugin_lzma2
#ifdef _CompressPlugin_7zXZ
#if (_IsNeedIncludeDefaultCompressHead)
# include "Xz.h" // "lzma/C/Xz.h" https://github.com/sisong/lzma
# include "7zCrc.h" // CrcGenerateTable()
#endif
#ifndef _init_CompressPlugin_7zXZ_DEF
# define _init_CompressPlugin_7zXZ_DEF
static int _init_CompressPlugin_7zXZ(){
static hpatch_BOOL _isInit=hpatch_FALSE;
if (!_isInit){
CrcGenerateTable();
_isInit=hpatch_TRUE;
}
return 0;
}
#endif
typedef struct _7zXZ_TDecompress{
ISzAlloc memAllocBase;
const struct hpatch_TStreamInput* codeStream;
hpatch_StreamPos_t code_begin;
hpatch_StreamPos_t code_end;
hpatch_TDecompress* decompressPlugin;
hpatch_BOOL isResetState;
CXzUnpacker decEnv;
SizeT decCopyPos;
SizeT decReadPos;
hpatch_dec_error_t decError;
unsigned char dec_buf[kDecompressBufSize];
} _7zXZ_TDecompress;
static void * __7zXZ_dec_Alloc(ISzAllocPtr p, size_t size)
__dec_Alloc_fun(_7zXZ_TDecompress,p,size)
static hpatch_BOOL _7zXZ_is_can_open(const char* compressType){
return (0==strcmp(compressType,"7zXZ"));
}
static void _7zXZ_open_at(_7zXZ_TDecompress* self, hpatch_TDecompress* decompressPlugin,hpatch_StreamPos_t dataSize,
const hpatch_TStreamInput* codeStream,hpatch_StreamPos_t code_begin,
hpatch_StreamPos_t code_end,hpatch_BOOL isResetState,hpatch_BOOL isParseHead){
memset(self,0,sizeof(_7zXZ_TDecompress)-kDecompressBufSize);
self->memAllocBase.Alloc=__7zXZ_dec_Alloc;
*((void**)&self->memAllocBase.Free)=(void*)__dec_free;
self->codeStream=codeStream;
self->code_begin=code_begin;
self->code_end=code_end;
self->decompressPlugin=decompressPlugin;
self->isResetState=isResetState;
self->decCopyPos=0;
self->decReadPos=kDecompressBufSize;
XzUnpacker_Construct(&self->decEnv,&self->memAllocBase);
XzUnpacker_Init(&self->decEnv);
if (!isParseHead)
self->decEnv.state=XZ_STATE_BLOCK_HEADER;
}
static void _7zXZ_close_at(hpatch_decompressHandle decompressHandle){
_7zXZ_TDecompress* self=(_7zXZ_TDecompress*)decompressHandle;
if (self){
hpatch_TDecompress* decompressPlugin=self->decompressPlugin;
XzUnpacker_Free(&self->decEnv);
_dec_onDecErr_up();
}
}
static hpatch_decompressHandle _7zXZ_open(hpatch_TDecompress* decompressPlugin,
hpatch_StreamPos_t dataSize,
const hpatch_TStreamInput* codeStream,
hpatch_StreamPos_t code_begin,
hpatch_StreamPos_t code_end){
_7zXZ_TDecompress* self=0;
self=(_7zXZ_TDecompress*)_dec_malloc(sizeof(_7zXZ_TDecompress));
if (!self) _dec_memErr_rt();
_7zXZ_open_at(self,decompressPlugin,dataSize,codeStream,
code_begin,code_end,hpatch_FALSE,hpatch_TRUE);
return self;
}
static hpatch_decompressHandle _7zXZ_a_open(hpatch_TDecompress* decompressPlugin,
hpatch_StreamPos_t dataSize,
const hpatch_TStreamInput* codeStream,
hpatch_StreamPos_t code_begin,
hpatch_StreamPos_t code_end){
_7zXZ_TDecompress* self=0;
self=(_7zXZ_TDecompress*)_dec_malloc(sizeof(_7zXZ_TDecompress));
if (!self) _dec_memErr_rt();
_7zXZ_open_at(self,decompressPlugin,dataSize,codeStream,
code_begin,code_end,hpatch_TRUE,hpatch_TRUE);
return self;
}
static hpatch_BOOL _7zXZ_close(struct hpatch_TDecompress* decompressPlugin,
hpatch_decompressHandle decompressHandle){
if (decompressHandle){
_7zXZ_close_at(decompressHandle);
free(decompressHandle);
}
return hpatch_TRUE;
}
static hpatch_BOOL _7zXZ_reset_code(hpatch_decompressHandle decompressHandle,
hpatch_StreamPos_t dataSize,
const struct hpatch_TStreamInput* codeStream,
hpatch_StreamPos_t code_begin,
hpatch_StreamPos_t code_end){
_7zXZ_TDecompress* self=(_7zXZ_TDecompress*)decompressHandle;
hpatch_BOOL isResetState=self->isResetState;
if (isResetState){
hpatch_TDecompress* decompressPlugin=self->decompressPlugin;
_7zXZ_close_at(self);
_7zXZ_open_at(self,decompressPlugin,dataSize,codeStream,
code_begin,code_end,isResetState,hpatch_FALSE);
}else{
self->codeStream=codeStream;
self->code_begin=code_begin;
self->code_end=code_end;
self->decCopyPos=0;
self->decReadPos=kDecompressBufSize;
}
return hpatch_TRUE;
}
static hpatch_BOOL _7zXZ_decompress_part(hpatch_decompressHandle decompressHandle,
unsigned char* out_part_data,unsigned char* out_part_data_end){
_7zXZ_TDecompress* self=(_7zXZ_TDecompress*)decompressHandle;
unsigned char* out_cur=out_part_data;
assert(out_part_data<=out_part_data_end);
while (out_cur<out_part_data_end){
ECoderStatus status;
SizeT inSize;
SizeT outSize=out_part_data_end-out_cur;
SRes res;
hpatch_StreamPos_t codeLen=(self->code_end-self->code_begin);
if ((self->decReadPos==kDecompressBufSize)&&(codeLen>0)) {
size_t readLen=kDecompressBufSize;
if (readLen>codeLen) readLen=(size_t)codeLen;
self->decReadPos=kDecompressBufSize-readLen;
if (!self->codeStream->read(self->codeStream,self->code_begin,self->dec_buf+self->decReadPos,
self->dec_buf+self->decReadPos+readLen)) return hpatch_FALSE;//error;
self->code_begin+=readLen;
codeLen-=readLen;
}
inSize=kDecompressBufSize-self->decReadPos;
res=XzUnpacker_Code(&self->decEnv,out_cur,&outSize,self->dec_buf+self->decReadPos,&inSize,
codeLen==0,CODER_FINISH_ANY,&status);
if(res==SZ_OK){
if ((inSize==0)&&(outSize==0))
_dec_onDecErr_rt();//error;
}else{
_dec_onDecErr_rt();//error;
}
self->decReadPos+=inSize;
out_cur+=outSize;
}
return hpatch_TRUE;
}
static hpatch_TDecompress _7zXZDecompressPlugin={_7zXZ_is_can_open,_7zXZ_open,
_7zXZ_close,_7zXZ_decompress_part,_7zXZ_reset_code};
static hpatch_TDecompress _7zXZDecompressPlugin_a={_7zXZ_is_can_open,_7zXZ_a_open,
_7zXZ_close,_7zXZ_decompress_part,_7zXZ_reset_code};
#endif//_CompressPlugin_7zXZ
#if (defined(_CompressPlugin_lz4) || defined(_CompressPlugin_lz4hc))
#if (_IsNeedIncludeDefaultCompressHead)
# include "lz4.h" // "lz4/lib/lz4.h" https://github.com/lz4/lz4
#endif
typedef struct _lz4_TDecompress{
const struct hpatch_TStreamInput* codeStream;
hpatch_StreamPos_t code_begin;
hpatch_StreamPos_t code_end;
LZ4_streamDecode_t *s;
int kLz4CompressBufSize;
int code_buf_size;
int data_begin;
int data_end;
hpatch_dec_error_t decError;
unsigned char buf[1];
} _lz4_TDecompress;
static hpatch_BOOL _lz4_is_can_open(const char* compressType){
return (0==strcmp(compressType,"lz4"));
}
#define _lz4_read_len4(len,in_code,code_begin,code_end,__dec_err_rt) { \
unsigned char _temp_buf4[4]; \
if (4>code_end-code_begin) __dec_err_rt(); \
if (!in_code->read(in_code,code_begin,_temp_buf4,_temp_buf4+4)) \
return hpatch_FALSE; \
len=_temp_buf4[0]|(_temp_buf4[1]<<8)|(_temp_buf4[2]<<16)|(_temp_buf4[3]<<24); \
code_begin+=4; \
}
static hpatch_decompressHandle _lz4_open(hpatch_TDecompress* decompressPlugin,
hpatch_StreamPos_t dataSize,
const hpatch_TStreamInput* codeStream,
hpatch_StreamPos_t code_begin,
hpatch_StreamPos_t code_end){
const int kMaxLz4CompressBufSize=(1<<20)*64; //defence attack
_lz4_TDecompress* self=0;
int kLz4CompressBufSize=0;
int code_buf_size=0;
assert(code_begin<code_end);
{//read kLz4CompressBufSize
_lz4_read_len4(kLz4CompressBufSize,codeStream,code_begin,code_end,_dec_openErr_rt);
if ((kLz4CompressBufSize<0)||(kLz4CompressBufSize>=kMaxLz4CompressBufSize)) _dec_openErr_rt();
code_buf_size=LZ4_compressBound(kLz4CompressBufSize);
}
self=(_lz4_TDecompress*)_dec_malloc(sizeof(_lz4_TDecompress)+kLz4CompressBufSize+code_buf_size);
if (!self) _dec_memErr_rt();
memset(self,0,sizeof(_lz4_TDecompress));
self->codeStream=codeStream;
self->code_begin=code_begin;
self->code_end=code_end;
self->kLz4CompressBufSize=kLz4CompressBufSize;
self->code_buf_size=code_buf_size;
self->data_begin=0;
self->data_end=0;
self->s = LZ4_createStreamDecode();
if (!self->s){ free(self); _dec_openErr_rt(); }
return self;
}
static hpatch_BOOL _lz4_close(struct hpatch_TDecompress* decompressPlugin,
hpatch_decompressHandle decompressHandle){
hpatch_BOOL result=hpatch_TRUE;
_lz4_TDecompress* self=(_lz4_TDecompress*)decompressHandle;
if (!self) return result;
_dec_onDecErr_up();
_dec_close_check(0==LZ4_freeStreamDecode(self->s));
free(self);
return result;
}
static hpatch_BOOL _lz4_decompress_part(hpatch_decompressHandle decompressHandle,
unsigned char* out_part_data,unsigned char* out_part_data_end){
_lz4_TDecompress* self=(_lz4_TDecompress*)decompressHandle;
unsigned char* data_buf=self->buf;
unsigned char* code_buf=self->buf+self->kLz4CompressBufSize;
while (out_part_data<out_part_data_end) {
size_t dataLen=self->data_end-self->data_begin;
if (dataLen>0){
if (dataLen>(out_part_data_end-out_part_data))
dataLen=(out_part_data_end-out_part_data);
memcpy(out_part_data,data_buf+self->data_begin,dataLen);
out_part_data+=(size_t)dataLen;
self->data_begin+=dataLen;
}else{
int codeLen;
_lz4_read_len4(codeLen,self->codeStream,self->code_begin,self->code_end,_dec_onDecErr_rt);
if ((codeLen<=0)||(codeLen>self->code_buf_size)
||((size_t)codeLen>(self->code_end-self->code_begin))) _dec_onDecErr_rt();
if (!self->codeStream->read(self->codeStream,self->code_begin,
code_buf,code_buf+codeLen)) return hpatch_FALSE;
self->code_begin+=codeLen;
self->data_begin=0;
self->data_end=LZ4_decompress_safe_continue(self->s,(const char*)code_buf,(char*)data_buf,
codeLen,self->kLz4CompressBufSize);
if (self->data_end<=0) _dec_onDecErr_rt();
}
}
return hpatch_TRUE;
}
static hpatch_TDecompress lz4DecompressPlugin={_lz4_is_can_open,_lz4_open,
_lz4_close,_lz4_decompress_part};
#endif//_CompressPlugin_lz4 or _CompressPlugin_lz4hc
#ifdef _CompressPlugin_zstd
#if (_IsNeedIncludeDefaultCompressHead)
//# define ZSTD_STATIC_LINKING_ONLY //for ZSTD_customMem
# include "zstd.h" // "zstd/lib/zstd.h" https://github.com/sisong/zstd
#endif
typedef struct _zstd_TDecompress{
const struct hpatch_TStreamInput* codeStream;
hpatch_StreamPos_t code_begin;
hpatch_StreamPos_t code_end;
ZSTD_inBuffer s_input;
ZSTD_outBuffer s_output;
size_t data_begin;
ZSTD_DStream* s;
hpatch_dec_error_t decError;
unsigned char buf[1];
} _zstd_TDecompress;
#ifdef ZSTD_STATIC_LINKING_ONLY
static void* __ZSTD_alloc(void* opaque, size_t size)
__dec_Alloc_fun(_zstd_TDecompress,opaque,size)
#endif
static hpatch_BOOL _zstd_is_can_open(const char* compressType){
return (0==strcmp(compressType,"zstd"));
}
static hpatch_decompressHandle _zstd_open(hpatch_TDecompress* decompressPlugin,
hpatch_StreamPos_t dataSize,
const hpatch_TStreamInput* codeStream,
hpatch_StreamPos_t code_begin,
hpatch_StreamPos_t code_end){
_zstd_TDecompress* self=0;
size_t ret;
size_t _input_size=ZSTD_DStreamInSize();
size_t _output_size=ZSTD_DStreamOutSize();
self=(_zstd_TDecompress*)_dec_malloc(sizeof(_zstd_TDecompress)+_input_size+_output_size);
if (!self) _dec_memErr_rt();
memset(self,0,sizeof(_zstd_TDecompress));
self->codeStream=codeStream;
self->code_begin=code_begin;
self->code_end=code_end;
self->s_input.src=self->buf;
self->s_input.size=_input_size;
self->s_input.pos=_input_size;
self->s_output.dst=self->buf+_input_size;
self->s_output.size=_output_size;
self->s_output.pos=0;
self->data_begin=0;
#ifdef ZSTD_STATIC_LINKING_ONLY
{
ZSTD_customMem customMem={__ZSTD_alloc,__dec_free,self};
self->s=ZSTD_createDStream_advanced(customMem);
}
#else
self->s=ZSTD_createDStream();
#endif
if (!self->s){ _dec_onDecErr_up(); free(self); _dec_openErr_rt(); }
ret=ZSTD_initDStream(self->s);
if (ZSTD_isError(ret)) { ZSTD_freeDStream(self->s); _dec_onDecErr_up(); free(self); _dec_openErr_rt(); }
#define _ZSTD_WINDOWLOG_MAX 30
ret=ZSTD_DCtx_setParameter(self->s,ZSTD_d_windowLogMax,_ZSTD_WINDOWLOG_MAX);
//if (ZSTD_isError(ret)) { printf("WARNING: ZSTD_DCtx_setMaxWindowSize() error!"); }
return self;
}
static hpatch_BOOL _zstd_close(struct hpatch_TDecompress* decompressPlugin,
hpatch_decompressHandle decompressHandle){
hpatch_BOOL result=hpatch_TRUE;
_zstd_TDecompress* self=(_zstd_TDecompress*)decompressHandle;
if (!self) return result;
_dec_onDecErr_up();
_dec_close_check(0==ZSTD_freeDStream(self->s));
free(self);
return result;
}
static hpatch_BOOL _zstd_decompress_part(hpatch_decompressHandle decompressHandle,
unsigned char* out_part_data,unsigned char* out_part_data_end){
_zstd_TDecompress* self=(_zstd_TDecompress*)decompressHandle;
while (out_part_data<out_part_data_end) {
size_t dataLen=(self->s_output.pos-self->data_begin);
if (dataLen>0){
if (dataLen>(size_t)(out_part_data_end-out_part_data))
dataLen=(out_part_data_end-out_part_data);
memcpy(out_part_data,(const unsigned char*)self->s_output.dst+self->data_begin,dataLen);
out_part_data+=dataLen;
self->data_begin+=dataLen;
}else{
size_t ret;
if (self->s_input.pos==self->s_input.size) {
self->s_input.pos=0;
if (self->s_input.size>self->code_end-self->code_begin)
self->s_input.size=(size_t)(self->code_end-self->code_begin);
if (self->s_input.size>0){
if (!self->codeStream->read(self->codeStream,self->code_begin,(unsigned char*)self->s_input.src,
(unsigned char*)self->s_input.src+self->s_input.size))
return hpatch_FALSE;
self->code_begin+=self->s_input.size;
}
}