First release of ZSNES sources
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teuf
289
zsnes/src/win/zfilew.c
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289
zsnes/src/win/zfilew.c
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//Copyright (C) 1997-2001 ZSNES Team ( zsknight@zsnes.com / _demo_@zsnes.com )
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//
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//This program is free software; you can redistribute it and/or
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//modify it under the terms of the GNU General Public License
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//as published by the Free Software Foundation; either
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//version 2 of the License, or (at your option) any later
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//version.
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//
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//This program is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//
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//You should have received a copy of the GNU General Public License
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//along with this program; if not, write to the Free Software
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//Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#include <stdio.h>
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#include <time.h>
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#include <io.h>
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#define DWORD unsigned int
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#define BYTE unsigned char
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FILE *FILEHANDLE[16];
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DWORD CurrentHandle=0;
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// ZFileSystemInit
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// return 0
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// ZOpenFile info :
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BYTE * ZOpenFileName;
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DWORD ZOpenMode;
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// Open modes : 0 read/write in
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// 1 write (create file, overwrite)
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// return file handle if success, 0xFFFFFFFF if error
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// ZCloseFile info :
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DWORD ZCloseFileHandle;
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// return 0
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// ZFileSeek info :
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DWORD ZFileSeekHandle;
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DWORD ZFileSeekPos;
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DWORD ZFileSeekMode; // 0 start, 1 end
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// return 0
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// ZFileReadBlock info :
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BYTE * ZFileReadBlock;
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DWORD ZFileReadSize;
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DWORD ZFileReadHandle;
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// return 0
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// ZFileWriteBlock info :
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BYTE * ZFileWriteBlock;
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DWORD ZFileWriteSize;
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DWORD ZFileWriteHandle;
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// return 0
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// ZFileTell
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DWORD ZFileTellHandle;
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// ZFileGetftime
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BYTE * ZFFTimeFName;
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DWORD ZFTimeHandle;
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DWORD ZFDate;
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DWORD ZFTime;
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// MKDir/CHDir
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BYTE * MKPath;
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BYTE * CHPath;
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BYTE * RMPath;
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// GetDir
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BYTE * DirName;
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DWORD DriveNumber;
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// ZFileDelete
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BYTE * ZFileDelFName;
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// return current position
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DWORD ZFileSystemInit()
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{
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CurrentHandle=0;
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return(0);
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}
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DWORD ZOpenFile()
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{
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if(ZOpenMode==0)
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{
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if((FILEHANDLE[CurrentHandle]=fopen(ZOpenFileName,"rb"))!=NULL)
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{
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CurrentHandle+=1;
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return(CurrentHandle-1);
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}
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return(0xFFFFFFFF);
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}
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if(ZOpenMode==1)
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{
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if((FILEHANDLE[CurrentHandle]=fopen(ZOpenFileName,"wb"))!=NULL)
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{
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CurrentHandle+=1;
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return(CurrentHandle-1);
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}
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return(0xFFFFFFFF);
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}
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if(ZOpenMode==2)
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{
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if((FILEHANDLE[CurrentHandle]=fopen(ZOpenFileName,"r+b"))!=NULL)
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{
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CurrentHandle+=1;
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return(CurrentHandle-1);
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}
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return(0xFFFFFFFF);
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}
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return(0xFFFFFFFF);
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}
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DWORD ZCloseFile()
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{
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fclose(FILEHANDLE[ZCloseFileHandle]);
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CurrentHandle-=1;
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return(0);
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}
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DWORD ZFileSeek()
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{
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if(ZFileSeekMode==0)
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{
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fseek(FILEHANDLE[ZFileSeekHandle],ZFileSeekPos,SEEK_SET);
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return(0);
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}
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if(ZFileSeekMode==1)
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{
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fseek(FILEHANDLE[ZFileSeekHandle],ZFileSeekPos,SEEK_END);
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return(0);
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}
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return(0xFFFFFFFF);
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}
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DWORD ZFileRead()
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{
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return(fread(ZFileReadBlock,1,ZFileReadSize,FILEHANDLE[ZFileReadHandle]));
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}
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DWORD ZFileWrite()
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{
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if((fwrite(ZFileWriteBlock,1,ZFileWriteSize,FILEHANDLE[ZFileWriteHandle]))!=ZFileWriteSize) return(0xFFFFFFFF);
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return(0);
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}
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DWORD ZFileTell()
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{
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return(ftell(FILEHANDLE[ZFileTellHandle]));
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}
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DWORD ZFileDelete()
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{
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return(remove(ZFileDelFName));
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}
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DWORD ZFileGetFTime()
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{
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ZFDate=0;
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ZFTime=0;
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return(0);
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}
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DWORD ZFileMKDir()
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{
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return(mkdir(MKPath));
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}
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DWORD ZFileCHDir()
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{
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return(chdir(CHPath));
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}
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DWORD ZFileRMDir()
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{
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return(rmdir(RMPath));
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}
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DWORD ZFileGetDir()
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{
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return(getcwd(DirName,128));
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}
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BYTE * ZFileFindPATH;
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DWORD ZFileFindATTRIB;
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DWORD DTALocPos;
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//struct _find_t {
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// char reserved[21] __attribute__((packed));
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// unsigned char attrib __attribute__((packed));
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// unsigned short wr_time __attribute__((packed));
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// unsigned short wr_date __attribute__((packed));
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// unsigned long size __attribute__((packed));
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// char name[256] __attribute__((packed));
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//};
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int FindFirstHandle;
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int TempFind;
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struct _finddata_t FindDataStruct;
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DWORD ZFileFindNext()
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{
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TempFind=_findnext(FindFirstHandle,&FindDataStruct);
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if(TempFind==-1) return(-1);
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*(char *)(DTALocPos+0x15)=0;
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if(ZFileFindATTRIB&0x10 && (FindDataStruct.attrib&0x10)==0) return(ZFileFindNext());
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if((ZFileFindATTRIB&0x10==0) && FindDataStruct.attrib&0x10) return(ZFileFindNext());
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if(FindDataStruct.attrib&_A_SUBDIR) *(char *)(DTALocPos+0x15)=0x10;
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strcpy((char *)DTALocPos+0x1E,FindDataStruct.name);
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if(TempFind==-1) return(-1);
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return(0);
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}
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DWORD ZFileFindFirst()
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{
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FindFirstHandle=_findfirst(ZFileFindPATH,&FindDataStruct);
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*(char *)(DTALocPos+0x15)=0;
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TempFind=0;
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if(FindFirstHandle==-1) return(-1);
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if(ZFileFindATTRIB&0x10 && (FindDataStruct.attrib&0x10)==0) return(ZFileFindNext());
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if((ZFileFindATTRIB&0x10==0) && FindDataStruct.attrib&0x10) return(ZFileFindNext());
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if(FindDataStruct.attrib&_A_SUBDIR) *(char *)(DTALocPos+0x15)=0x10;
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strcpy((char *) DTALocPos+0x1E,FindDataStruct.name);
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if(FindFirstHandle==-1) return(-1);
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return(0);
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}
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DWORD ZFileFindEnd() // for compatibility with windows later
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{
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_findclose(FindFirstHandle);
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return(0);
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}
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//BYTE * DirName;
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//DWORD DriveNumber;
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//unsigned int _dos_findfirst(char *_name, unsigned int _attr, struct _find_t *_result);
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//unsigned int _dos_findnext(struct _find_t *_result);
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DWORD GetTime()
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{
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DWORD value;
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struct tm *newtime;
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time_t long_time;
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time( &long_time );
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newtime = localtime( &long_time );
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value = ((newtime->tm_sec) % 10)+((newtime->tm_sec)/10)*16
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+((((newtime->tm_min) % 10)+((newtime->tm_min)/10)*16) << 8)
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+((((newtime->tm_hour) % 10)+((newtime->tm_hour)/10)*16) << 16);
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return(value);
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}
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DWORD GetDate()
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{
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DWORD value;
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struct tm *newtime;
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time_t long_time;
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time( &long_time );
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newtime = localtime( &long_time );
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value = ((newtime->tm_mday) % 10)+((newtime->tm_mday)/10)*16
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+(((newtime->tm_mon)+1) << 8)
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+((((newtime->tm_year) % 10)+((newtime->tm_year)/10)*16) << 16);
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+((newtime->tm_wday) << 28);
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return(value);
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}
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