115 lines
3.9 KiB
C
115 lines
3.9 KiB
C
// dir_patch_tools.c
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// hdiffz dir patch
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//
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/*
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The MIT License (MIT)
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Copyright (c) 2018-2019 HouSisong
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use,
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copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following
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conditions:
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The above copyright notice and this permission notice shall be
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included in all copies of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "dir_patch_tools.h"
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#include "../../file_for_patch.h"
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#if (_IS_NEED_DIR_DIFF_PATCH)
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#include <stdio.h>
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#include <string.h>
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#define TUInt hpatch_StreamPos_t
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#define checki(value,errorInfo) { if (!(value)){ LOG_ERR("dir_patch " errorInfo " error!\n"); \
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result=hpatch_FALSE; goto clear; } }
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void formatDirTagForLoad(char* utf8_path,char* utf8_pathEnd){
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if (kPatch_dirSeparator==kPatch_dirSeparator_saved) return;
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for (;utf8_path<utf8_pathEnd;++utf8_path){
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if ((*utf8_path)!=kPatch_dirSeparator_saved)
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continue;
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else
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*utf8_path=kPatch_dirSeparator;
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}
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}
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hpatch_BOOL clipCStrsTo(const char* cstrs,const char* cstrsEnd,
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const char** out_cstrList,size_t cstrCount){
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if (cstrs<cstrsEnd){
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if (cstrsEnd[-1]!='\0') return hpatch_FALSE;
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while ((cstrs<cstrsEnd)&(cstrCount>0)) {
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*out_cstrList=cstrs; ++out_cstrList; --cstrCount;
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cstrs+=strlen(cstrs)+1; //safe
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}
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}
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return (cstrs==cstrsEnd)&(cstrCount==0);
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}
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hpatch_BOOL readListTo(TStreamCacheClip* sclip,hpatch_StreamPos_t* out_list,size_t count){
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hpatch_BOOL result=hpatch_TRUE;
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size_t i;
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for (i=0; i<count; ++i) {
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checki(_TStreamCacheClip_unpackUIntWithTag(sclip,&out_list[i],0),
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"readListTo() saved data");
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}
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clear:
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return result;
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}
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hpatch_BOOL readIncListTo(TStreamCacheClip* sclip,size_t* out_list,
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size_t count,size_t check_endValue){
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//endValue: maxValue+1
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hpatch_BOOL result=hpatch_TRUE;
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TUInt backValue=~(TUInt)0;
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size_t i;
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for (i=0; i<count; ++i) {
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TUInt incValue;
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checki(_TStreamCacheClip_unpackUIntWithTag(sclip,&incValue,0),"readIncListTo() saved data");
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backValue+=1+incValue;
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checki(backValue<check_endValue,"readIncListTo() saved data value");
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out_list[i]=(size_t)backValue;
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}
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clear:
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return result;
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}
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char* setPath(char* out_path,char* out_pathBufEnd,const char* fileName){
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char* result=0; //false
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size_t strLen=strlen(fileName);
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checki(strLen+1<=(size_t)(out_pathBufEnd-out_path),"setPath() fileName buf size");
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memcpy(out_path,fileName,strLen+1);//with '\0'
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result=out_path+strLen;
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clear:
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return result;
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}
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char* setDirPath(char* out_path,char* out_pathBufEnd,const char* dirName){
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char* result=0; //false
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size_t strLen=strlen(dirName);
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hpatch_BOOL isNeedDirSeparator=(strLen>0)&&(dirName[strLen-1]!=kPatch_dirSeparator);
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checki((strLen+(isNeedDirSeparator?1:0)+1)<=(size_t)(out_pathBufEnd-out_path),
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"setDirPath() dirName buf size");
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memcpy(out_path,dirName,strLen);
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result=out_path+strLen;
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if (isNeedDirSeparator) { *result=kPatch_dirSeparator; ++result; }
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*result='\0'; //C string end
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clear:
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return result;
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}
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#endif
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