390 lines
12 KiB
C
390 lines
12 KiB
C
/* iowin32.c -- IO base function header for compress/uncompress .zip
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Version 1.1, February 14h, 2010
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part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
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Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
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Modifications for Zip64 support
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Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
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For more info read MiniZip_info.txt
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*/
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#include <stdlib.h>
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#include "zlib.h"
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#include "ioapi.h"
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#include "iowin32.h"
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#ifndef INVALID_HANDLE_VALUE
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#define INVALID_HANDLE_VALUE (0xFFFFFFFF)
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#endif
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#ifndef INVALID_SET_FILE_POINTER
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#define INVALID_SET_FILE_POINTER ((DWORD)-1)
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#endif
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voidpf ZCALLBACK win32_open_file_func OF((voidpf opaque, const char* filename, int mode));
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uLong ZCALLBACK win32_read_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));
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uLong ZCALLBACK win32_write_file_func OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
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ZPOS64_T ZCALLBACK win32_tell64_file_func OF((voidpf opaque, voidpf stream));
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long ZCALLBACK win32_seek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
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int ZCALLBACK win32_close_file_func OF((voidpf opaque, voidpf stream));
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int ZCALLBACK win32_error_file_func OF((voidpf opaque, voidpf stream));
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typedef struct
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{
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HANDLE hf;
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int error;
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} WIN32FILE_IOWIN;
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static void win32_translate_open_mode(int mode,
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DWORD* lpdwDesiredAccess,
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DWORD* lpdwCreationDisposition,
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DWORD* lpdwShareMode,
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DWORD* lpdwFlagsAndAttributes)
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{
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*lpdwDesiredAccess = *lpdwShareMode = *lpdwFlagsAndAttributes = *lpdwCreationDisposition = 0;
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if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
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{
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*lpdwDesiredAccess = GENERIC_READ;
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*lpdwCreationDisposition = OPEN_EXISTING;
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*lpdwShareMode = FILE_SHARE_READ;
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}
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else if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
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{
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*lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
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*lpdwCreationDisposition = OPEN_EXISTING;
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}
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else if (mode & ZLIB_FILEFUNC_MODE_CREATE)
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{
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*lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
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*lpdwCreationDisposition = CREATE_ALWAYS;
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}
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}
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static voidpf win32_build_iowin(HANDLE hFile)
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{
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voidpf ret=NULL;
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if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
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{
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WIN32FILE_IOWIN w32fiow;
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w32fiow.hf = hFile;
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w32fiow.error = 0;
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ret = malloc(sizeof(WIN32FILE_IOWIN));
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if (ret==NULL)
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CloseHandle(hFile);
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else
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*((WIN32FILE_IOWIN*)ret) = w32fiow;
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}
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return ret;
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}
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voidpf ZCALLBACK win32_open64_file_func (voidpf opaque,const void* filename,int mode)
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{
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const char* mode_fopen = NULL;
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DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
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HANDLE hFile = NULL;
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win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
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if ((filename!=NULL) && (dwDesiredAccess != 0))
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hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
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return win32_build_iowin(hFile);
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}
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voidpf ZCALLBACK win32_open64_file_funcA (voidpf opaque,const void* filename,int mode)
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{
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const char* mode_fopen = NULL;
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DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
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HANDLE hFile = NULL;
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win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
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if ((filename!=NULL) && (dwDesiredAccess != 0))
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hFile = CreateFileA((LPCSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
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return win32_build_iowin(hFile);
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}
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voidpf ZCALLBACK win32_open64_file_funcW (voidpf opaque,const void* filename,int mode)
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{
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const char* mode_fopen = NULL;
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DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
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HANDLE hFile = NULL;
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win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
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if ((filename!=NULL) && (dwDesiredAccess != 0))
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hFile = CreateFileW((LPCWSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
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return win32_build_iowin(hFile);
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}
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voidpf ZCALLBACK win32_open_file_func (voidpf opaque,const char* filename,int mode)
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{
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const char* mode_fopen = NULL;
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DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
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HANDLE hFile = NULL;
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win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
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if ((filename!=NULL) && (dwDesiredAccess != 0))
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hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
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return win32_build_iowin(hFile);
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}
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uLong ZCALLBACK win32_read_file_func (voidpf opaque, voidpf stream, void* buf,uLong size)
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{
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uLong ret=0;
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HANDLE hFile = NULL;
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if (stream!=NULL)
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hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
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if (hFile != NULL)
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{
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if (!ReadFile(hFile, buf, size, &ret, NULL))
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{
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DWORD dwErr = GetLastError();
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if (dwErr == ERROR_HANDLE_EOF)
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dwErr = 0;
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((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
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}
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}
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return ret;
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}
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uLong ZCALLBACK win32_write_file_func (voidpf opaque,voidpf stream,const void* buf,uLong size)
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{
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uLong ret=0;
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HANDLE hFile = NULL;
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if (stream!=NULL)
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hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
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if (hFile != NULL)
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{
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if (!WriteFile(hFile, buf, size, &ret, NULL))
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{
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DWORD dwErr = GetLastError();
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if (dwErr == ERROR_HANDLE_EOF)
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dwErr = 0;
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((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
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}
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}
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return ret;
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}
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long ZCALLBACK win32_tell_file_func (voidpf opaque,voidpf stream)
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{
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long ret=-1;
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HANDLE hFile = NULL;
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if (stream!=NULL)
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hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
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if (hFile != NULL)
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{
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DWORD dwSet = SetFilePointer(hFile, 0, NULL, FILE_CURRENT);
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if (dwSet == INVALID_SET_FILE_POINTER)
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{
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DWORD dwErr = GetLastError();
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((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
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ret = -1;
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}
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else
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ret=(long)dwSet;
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}
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return ret;
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}
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ZPOS64_T ZCALLBACK win32_tell64_file_func (voidpf opaque, voidpf stream)
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{
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ZPOS64_T ret= (ZPOS64_T)-1;
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HANDLE hFile = NULL;
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if (stream!=NULL)
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hFile = ((WIN32FILE_IOWIN*)stream)->hf;
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if (hFile)
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{
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LARGE_INTEGER li;
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li.QuadPart = 0;
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li.u.LowPart = SetFilePointer(hFile, li.u.LowPart, &li.u.HighPart, FILE_CURRENT);
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if ( (li.LowPart == 0xFFFFFFFF) && (GetLastError() != NO_ERROR))
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{
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DWORD dwErr = GetLastError();
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((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
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ret = (ZPOS64_T)-1;
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}
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else
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ret=li.QuadPart;
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}
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return ret;
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}
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long ZCALLBACK win32_seek_file_func (voidpf opaque,voidpf stream,uLong offset,int origin)
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{
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DWORD dwMoveMethod=0xFFFFFFFF;
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HANDLE hFile = NULL;
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long ret=-1;
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if (stream!=NULL)
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hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
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switch (origin)
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{
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case ZLIB_FILEFUNC_SEEK_CUR :
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dwMoveMethod = FILE_CURRENT;
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break;
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case ZLIB_FILEFUNC_SEEK_END :
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dwMoveMethod = FILE_END;
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break;
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case ZLIB_FILEFUNC_SEEK_SET :
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dwMoveMethod = FILE_BEGIN;
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break;
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default: return -1;
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}
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if (hFile != NULL)
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{
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DWORD dwSet = SetFilePointer(hFile, offset, NULL, dwMoveMethod);
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if (dwSet == INVALID_SET_FILE_POINTER)
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{
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DWORD dwErr = GetLastError();
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((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
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ret = -1;
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}
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else
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ret=0;
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}
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return ret;
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}
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long ZCALLBACK win32_seek64_file_func (voidpf opaque, voidpf stream,ZPOS64_T offset,int origin)
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{
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DWORD dwMoveMethod=0xFFFFFFFF;
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HANDLE hFile = NULL;
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long ret=-1;
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if (stream!=NULL)
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hFile = ((WIN32FILE_IOWIN*)stream)->hf;
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switch (origin)
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{
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case ZLIB_FILEFUNC_SEEK_CUR :
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dwMoveMethod = FILE_CURRENT;
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break;
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case ZLIB_FILEFUNC_SEEK_END :
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dwMoveMethod = FILE_END;
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break;
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case ZLIB_FILEFUNC_SEEK_SET :
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dwMoveMethod = FILE_BEGIN;
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break;
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default: return -1;
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}
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if (hFile)
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{
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LARGE_INTEGER* li = (LARGE_INTEGER*)&offset;
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DWORD dwSet = SetFilePointer(hFile, li->u.LowPart, &li->u.HighPart, dwMoveMethod);
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if (dwSet == INVALID_SET_FILE_POINTER)
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{
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DWORD dwErr = GetLastError();
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((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
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ret = -1;
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}
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else
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ret=0;
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}
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return ret;
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}
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int ZCALLBACK win32_close_file_func (voidpf opaque, voidpf stream)
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{
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int ret=-1;
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if (stream!=NULL)
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{
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HANDLE hFile;
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hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
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if (hFile != NULL)
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{
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CloseHandle(hFile);
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ret=0;
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}
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free(stream);
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}
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return ret;
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}
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int ZCALLBACK win32_error_file_func (voidpf opaque,voidpf stream)
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{
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int ret=-1;
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if (stream!=NULL)
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{
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ret = ((WIN32FILE_IOWIN*)stream) -> error;
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}
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return ret;
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}
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void fill_win32_filefunc (zlib_filefunc_def* pzlib_filefunc_def)
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{
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pzlib_filefunc_def->zopen_file = win32_open_file_func;
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pzlib_filefunc_def->zread_file = win32_read_file_func;
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pzlib_filefunc_def->zwrite_file = win32_write_file_func;
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pzlib_filefunc_def->ztell_file = win32_tell_file_func;
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pzlib_filefunc_def->zseek_file = win32_seek_file_func;
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pzlib_filefunc_def->zclose_file = win32_close_file_func;
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pzlib_filefunc_def->zerror_file = win32_error_file_func;
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pzlib_filefunc_def->opaque = NULL;
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}
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void fill_win32_filefunc64(zlib_filefunc64_def* pzlib_filefunc_def)
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{
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pzlib_filefunc_def->zopen64_file = win32_open64_file_func;
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pzlib_filefunc_def->zread_file = win32_read_file_func;
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pzlib_filefunc_def->zwrite_file = win32_write_file_func;
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pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
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pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
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pzlib_filefunc_def->zclose_file = win32_close_file_func;
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pzlib_filefunc_def->zerror_file = win32_error_file_func;
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pzlib_filefunc_def->opaque = NULL;
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}
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void fill_win32_filefunc64A(zlib_filefunc64_def* pzlib_filefunc_def)
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{
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pzlib_filefunc_def->zopen64_file = win32_open64_file_funcA;
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pzlib_filefunc_def->zread_file = win32_read_file_func;
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pzlib_filefunc_def->zwrite_file = win32_write_file_func;
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pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
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pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
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pzlib_filefunc_def->zclose_file = win32_close_file_func;
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pzlib_filefunc_def->zerror_file = win32_error_file_func;
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pzlib_filefunc_def->opaque = NULL;
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}
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void fill_win32_filefunc64W(zlib_filefunc64_def* pzlib_filefunc_def)
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{
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pzlib_filefunc_def->zopen64_file = win32_open64_file_funcW;
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pzlib_filefunc_def->zread_file = win32_read_file_func;
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pzlib_filefunc_def->zwrite_file = win32_write_file_func;
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pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
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pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
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pzlib_filefunc_def->zclose_file = win32_close_file_func;
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pzlib_filefunc_def->zerror_file = win32_error_file_func;
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pzlib_filefunc_def->opaque = NULL;
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}
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