/* iowin32.c -- IO base function header for compress/uncompress .zip Version 1.1, February 14h, 2010 part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) Modifications for Zip64 support Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) For more info read MiniZip_info.txt */ #include #include "zlib.h" #include "ioapi.h" #include "iowin32.h" #ifndef INVALID_HANDLE_VALUE #define INVALID_HANDLE_VALUE (0xFFFFFFFF) #endif #ifndef INVALID_SET_FILE_POINTER #define INVALID_SET_FILE_POINTER ((DWORD)-1) #endif voidpf ZCALLBACK win32_open_file_func OF((voidpf opaque, const char* filename, int mode)); uLong ZCALLBACK win32_read_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size)); uLong ZCALLBACK win32_write_file_func OF((voidpf opaque, voidpf stream, const void* buf, uLong size)); ZPOS64_T ZCALLBACK win32_tell64_file_func OF((voidpf opaque, voidpf stream)); long ZCALLBACK win32_seek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)); int ZCALLBACK win32_close_file_func OF((voidpf opaque, voidpf stream)); int ZCALLBACK win32_error_file_func OF((voidpf opaque, voidpf stream)); typedef struct { HANDLE hf; int error; } WIN32FILE_IOWIN; static void win32_translate_open_mode(int mode, DWORD* lpdwDesiredAccess, DWORD* lpdwCreationDisposition, DWORD* lpdwShareMode, DWORD* lpdwFlagsAndAttributes) { *lpdwDesiredAccess = *lpdwShareMode = *lpdwFlagsAndAttributes = *lpdwCreationDisposition = 0; if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) { *lpdwDesiredAccess = GENERIC_READ; *lpdwCreationDisposition = OPEN_EXISTING; *lpdwShareMode = FILE_SHARE_READ; } else if (mode & ZLIB_FILEFUNC_MODE_EXISTING) { *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ; *lpdwCreationDisposition = OPEN_EXISTING; } else if (mode & ZLIB_FILEFUNC_MODE_CREATE) { *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ; *lpdwCreationDisposition = CREATE_ALWAYS; } } static voidpf win32_build_iowin(HANDLE hFile) { voidpf ret=NULL; if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE)) { WIN32FILE_IOWIN w32fiow; w32fiow.hf = hFile; w32fiow.error = 0; ret = malloc(sizeof(WIN32FILE_IOWIN)); if (ret==NULL) CloseHandle(hFile); else *((WIN32FILE_IOWIN*)ret) = w32fiow; } return ret; } voidpf ZCALLBACK win32_open64_file_func (voidpf opaque,const void* filename,int mode) { const char* mode_fopen = NULL; DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ; HANDLE hFile = NULL; win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes); #ifdef IOWIN32_USING_WINRT_API #ifdef UNICODE if ((filename!=NULL) && (dwDesiredAccess != 0)) hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL); #else if ((filename!=NULL) && (dwDesiredAccess != 0)) { WCHAR filenameW[FILENAME_MAX + 0x200 + 1]; MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200); hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL); } #endif #else if ((filename!=NULL) && (dwDesiredAccess != 0)) hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL); #endif return win32_build_iowin(hFile); } voidpf ZCALLBACK win32_open64_file_funcA (voidpf opaque,const void* filename,int mode) { const char* mode_fopen = NULL; DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ; HANDLE hFile = NULL; win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes); #ifdef IOWIN32_USING_WINRT_API if ((filename!=NULL) && (dwDesiredAccess != 0)) { WCHAR filenameW[FILENAME_MAX + 0x200 + 1]; MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200); hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL); } #else if ((filename!=NULL) && (dwDesiredAccess != 0)) hFile = CreateFileA((LPCSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL); #endif return win32_build_iowin(hFile); } voidpf ZCALLBACK win32_open64_file_funcW (voidpf opaque,const void* filename,int mode) { const char* mode_fopen = NULL; DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ; HANDLE hFile = NULL; win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes); #ifdef IOWIN32_USING_WINRT_API if ((filename!=NULL) && (dwDesiredAccess != 0)) hFile = CreateFile2((LPCWSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition,NULL); #else if ((filename!=NULL) && (dwDesiredAccess != 0)) hFile = CreateFileW((LPCWSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL); #endif return win32_build_iowin(hFile); } voidpf ZCALLBACK win32_open_file_func (voidpf opaque,const char* filename,int mode) { const char* mode_fopen = NULL; DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ; HANDLE hFile = NULL; win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes); #ifdef IOWIN32_USING_WINRT_API #ifdef UNICODE if ((filename!=NULL) && (dwDesiredAccess != 0)) hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL); #else if ((filename!=NULL) && (dwDesiredAccess != 0)) { WCHAR filenameW[FILENAME_MAX + 0x200 + 1]; MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200); hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL); } #endif #else if ((filename!=NULL) && (dwDesiredAccess != 0)) hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL); #endif return win32_build_iowin(hFile); } uLong ZCALLBACK win32_read_file_func (voidpf opaque, voidpf stream, void* buf,uLong size) { uLong ret=0; HANDLE hFile = NULL; if (stream!=NULL) hFile = ((WIN32FILE_IOWIN*)stream) -> hf; if (hFile != NULL) { if (!ReadFile(hFile, buf, size, &ret, NULL)) { DWORD dwErr = GetLastError(); if (dwErr == ERROR_HANDLE_EOF) dwErr = 0; ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; } } return ret; } uLong ZCALLBACK win32_write_file_func (voidpf opaque,voidpf stream,const void* buf,uLong size) { uLong ret=0; HANDLE hFile = NULL; if (stream!=NULL) hFile = ((WIN32FILE_IOWIN*)stream) -> hf; if (hFile != NULL) { if (!WriteFile(hFile, buf, size, &ret, NULL)) { DWORD dwErr = GetLastError(); if (dwErr == ERROR_HANDLE_EOF) dwErr = 0; ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; } } return ret; } static BOOL MySetFilePointerEx(HANDLE hFile, LARGE_INTEGER pos, LARGE_INTEGER *newPos, DWORD dwMoveMethod) { #ifdef IOWIN32_USING_WINRT_API return SetFilePointerEx(hFile, pos, newPos, dwMoveMethod); #else LONG lHigh = pos.HighPart; DWORD dwNewPos = SetFilePointer(hFile, pos.LowPart, &lHigh, dwMoveMethod); BOOL fOk = TRUE; if (dwNewPos == 0xFFFFFFFF) if (GetLastError() != NO_ERROR) fOk = FALSE; if ((newPos != NULL) && (fOk)) { newPos->LowPart = dwNewPos; newPos->HighPart = lHigh; } return fOk; #endif } long ZCALLBACK win32_tell_file_func (voidpf opaque,voidpf stream) { long ret=-1; HANDLE hFile = NULL; if (stream!=NULL) hFile = ((WIN32FILE_IOWIN*)stream) -> hf; if (hFile != NULL) { LARGE_INTEGER pos; pos.QuadPart = 0; if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT)) { DWORD dwErr = GetLastError(); ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; ret = -1; } else ret=(long)pos.LowPart; } return ret; } ZPOS64_T ZCALLBACK win32_tell64_file_func (voidpf opaque, voidpf stream) { ZPOS64_T ret= (ZPOS64_T)-1; HANDLE hFile = NULL; if (stream!=NULL) hFile = ((WIN32FILE_IOWIN*)stream)->hf; if (hFile) { LARGE_INTEGER pos; pos.QuadPart = 0; if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT)) { DWORD dwErr = GetLastError(); ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; ret = (ZPOS64_T)-1; } else ret=pos.QuadPart; } return ret; } long ZCALLBACK win32_seek_file_func (voidpf opaque,voidpf stream,uLong offset,int origin) { DWORD dwMoveMethod=0xFFFFFFFF; HANDLE hFile = NULL; long ret=-1; if (stream!=NULL) hFile = ((WIN32FILE_IOWIN*)stream) -> hf; switch (origin) { case ZLIB_FILEFUNC_SEEK_CUR : dwMoveMethod = FILE_CURRENT; break; case ZLIB_FILEFUNC_SEEK_END : dwMoveMethod = FILE_END; break; case ZLIB_FILEFUNC_SEEK_SET : dwMoveMethod = FILE_BEGIN; break; default: return -1; } if (hFile != NULL) { LARGE_INTEGER pos; pos.QuadPart = offset; if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod)) { DWORD dwErr = GetLastError(); ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; ret = -1; } else ret=0; } return ret; } long ZCALLBACK win32_seek64_file_func (voidpf opaque, voidpf stream,ZPOS64_T offset,int origin) { DWORD dwMoveMethod=0xFFFFFFFF; HANDLE hFile = NULL; long ret=-1; if (stream!=NULL) hFile = ((WIN32FILE_IOWIN*)stream)->hf; switch (origin) { case ZLIB_FILEFUNC_SEEK_CUR : dwMoveMethod = FILE_CURRENT; break; case ZLIB_FILEFUNC_SEEK_END : dwMoveMethod = FILE_END; break; case ZLIB_FILEFUNC_SEEK_SET : dwMoveMethod = FILE_BEGIN; break; default: return -1; } if (hFile) { LARGE_INTEGER pos; pos.QuadPart = offset; if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod)) { DWORD dwErr = GetLastError(); ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; ret = -1; } else ret=0; } return ret; } int ZCALLBACK win32_close_file_func (voidpf opaque, voidpf stream) { int ret=-1; if (stream!=NULL) { HANDLE hFile; hFile = ((WIN32FILE_IOWIN*)stream) -> hf; if (hFile != NULL) { CloseHandle(hFile); ret=0; } free(stream); } return ret; } int ZCALLBACK win32_error_file_func (voidpf opaque,voidpf stream) { int ret=-1; if (stream!=NULL) { ret = ((WIN32FILE_IOWIN*)stream) -> error; } return ret; } void fill_win32_filefunc (zlib_filefunc_def* pzlib_filefunc_def) { pzlib_filefunc_def->zopen_file = win32_open_file_func; pzlib_filefunc_def->zread_file = win32_read_file_func; pzlib_filefunc_def->zwrite_file = win32_write_file_func; pzlib_filefunc_def->ztell_file = win32_tell_file_func; pzlib_filefunc_def->zseek_file = win32_seek_file_func; pzlib_filefunc_def->zclose_file = win32_close_file_func; pzlib_filefunc_def->zerror_file = win32_error_file_func; pzlib_filefunc_def->opaque = NULL; } void fill_win32_filefunc64(zlib_filefunc64_def* pzlib_filefunc_def) { pzlib_filefunc_def->zopen64_file = win32_open64_file_func; pzlib_filefunc_def->zread_file = win32_read_file_func; pzlib_filefunc_def->zwrite_file = win32_write_file_func; pzlib_filefunc_def->ztell64_file = win32_tell64_file_func; pzlib_filefunc_def->zseek64_file = win32_seek64_file_func; pzlib_filefunc_def->zclose_file = win32_close_file_func; pzlib_filefunc_def->zerror_file = win32_error_file_func; pzlib_filefunc_def->opaque = NULL; } void fill_win32_filefunc64A(zlib_filefunc64_def* pzlib_filefunc_def) { pzlib_filefunc_def->zopen64_file = win32_open64_file_funcA; pzlib_filefunc_def->zread_file = win32_read_file_func; pzlib_filefunc_def->zwrite_file = win32_write_file_func; pzlib_filefunc_def->ztell64_file = win32_tell64_file_func; pzlib_filefunc_def->zseek64_file = win32_seek64_file_func; pzlib_filefunc_def->zclose_file = win32_close_file_func; pzlib_filefunc_def->zerror_file = win32_error_file_func; pzlib_filefunc_def->opaque = NULL; } void fill_win32_filefunc64W(zlib_filefunc64_def* pzlib_filefunc_def) { pzlib_filefunc_def->zopen64_file = win32_open64_file_funcW; pzlib_filefunc_def->zread_file = win32_read_file_func; pzlib_filefunc_def->zwrite_file = win32_write_file_func; pzlib_filefunc_def->ztell64_file = win32_tell64_file_func; pzlib_filefunc_def->zseek64_file = win32_seek64_file_func; pzlib_filefunc_def->zclose_file = win32_close_file_func; pzlib_filefunc_def->zerror_file = win32_error_file_func; pzlib_filefunc_def->opaque = NULL; }