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/* iowin32.c -- IO base function header for compress/uncompress .zip |
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part of the MiniZip project - ( https://www.winimage.com/zLibDll/minizip.html ) |
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Copyright (C) 1998-2026 Gilles Vollant (minizip) ( https://www.winimage.com/zLibDll/minizip.html ) |
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Modifications for Zip64 support |
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Copyright (C) 2009-2010 Mathias Svensson ( https://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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/* see Include/shared/winapifamily.h in the Windows Kit */ |
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#if defined(WINAPI_FAMILY_PARTITION) && (!(defined(IOWIN32_USING_WINRT_API))) |
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#if !defined(WINAPI_FAMILY_ONE_PARTITION) |
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#define WINAPI_FAMILY_ONE_PARTITION(PartitionSet, Partition) ((WINAPI_FAMILY & PartitionSet) == Partition) |
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#endif |
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#if WINAPI_FAMILY_ONE_PARTITION(WINAPI_FAMILY, WINAPI_PARTITION_APP) |
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#define IOWIN32_USING_WINRT_API 1 |
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#endif |
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#endif |
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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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*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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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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(void)opaque; |
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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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#ifdef IOWIN32_USING_WINRT_API |
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#ifdef UNICODE |
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if ((filename!=NULL) && (dwDesiredAccess != 0)) |
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hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL); |
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#else |
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if ((filename!=NULL) && (dwDesiredAccess != 0)) |
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{ |
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WCHAR filenameW[FILENAME_MAX + 0x200 + 1]; |
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MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200); |
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hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL); |
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} |
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#endif |
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#else |
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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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#endif |
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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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(void)opaque; |
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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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#ifdef IOWIN32_USING_WINRT_API |
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if ((filename!=NULL) && (dwDesiredAccess != 0)) |
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{ |
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WCHAR filenameW[FILENAME_MAX + 0x200 + 1]; |
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MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200); |
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hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL); |
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} |
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#else |
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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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#endif |
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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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(void)opaque; |
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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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#ifdef IOWIN32_USING_WINRT_API |
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if ((filename!=NULL) && (dwDesiredAccess != 0)) |
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hFile = CreateFile2((LPCWSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition,NULL); |
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#else |
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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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#endif |
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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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(void)opaque; |
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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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#ifdef IOWIN32_USING_WINRT_API |
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#ifdef UNICODE |
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if ((filename!=NULL) && (dwDesiredAccess != 0)) |
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hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL); |
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#else |
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if ((filename!=NULL) && (dwDesiredAccess != 0)) |
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{ |
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WCHAR filenameW[FILENAME_MAX + 0x200 + 1]; |
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MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200); |
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hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL); |
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} |
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#endif |
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#else |
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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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#endif |
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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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(void)opaque; |
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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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(void)opaque; |
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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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static BOOL MySetFilePointerEx(HANDLE hFile, LARGE_INTEGER pos, LARGE_INTEGER *newPos, DWORD dwMoveMethod) { |
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#ifdef IOWIN32_USING_WINRT_API |
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return SetFilePointerEx(hFile, pos, newPos, dwMoveMethod); |
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#else |
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LONG lHigh = pos.HighPart; |
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DWORD dwNewPos = SetFilePointer(hFile, pos.LowPart, &lHigh, dwMoveMethod); |
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BOOL fOk = TRUE; |
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if (dwNewPos == 0xFFFFFFFF) |
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if (GetLastError() != NO_ERROR) |
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fOk = FALSE; |
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if ((newPos != NULL) && (fOk)) |
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{ |
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newPos->LowPart = dwNewPos; |
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newPos->HighPart = lHigh; |
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} |
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return fOk; |
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#endif |
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248
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} |
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249
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250
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long ZCALLBACK win32_tell_file_func(voidpf opaque, voidpf stream) { |
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(void)opaque; |
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252
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long ret=-1; |
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253
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HANDLE hFile = NULL; |
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254
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if (stream!=NULL) |
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255
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hFile = ((WIN32FILE_IOWIN*)stream) -> hf; |
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256
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if (hFile != NULL) |
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257
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{ |
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258
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LARGE_INTEGER pos; |
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259
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pos.QuadPart = 0; |
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260
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261
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if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT)) |
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262
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{ |
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263
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DWORD dwErr = GetLastError(); |
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264
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((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; |
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265
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ret = -1; |
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266
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} |
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267
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else |
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268
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ret=(long)pos.LowPart; |
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269
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} |
|
270
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return ret; |
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271
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} |
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272
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273
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ZPOS64_T ZCALLBACK win32_tell64_file_func(voidpf opaque, voidpf stream) { |
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274
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(void)opaque; |
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275
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ZPOS64_T ret= (ZPOS64_T)-1; |
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276
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HANDLE hFile = NULL; |
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277
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if (stream!=NULL) |
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278
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hFile = ((WIN32FILE_IOWIN*)stream)->hf; |
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279
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280
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if (hFile) |
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281
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{ |
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282
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LARGE_INTEGER pos; |
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283
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pos.QuadPart = 0; |
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284
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285
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if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT)) |
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286
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{ |
|
287
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DWORD dwErr = GetLastError(); |
|
288
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((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; |
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289
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ret = (ZPOS64_T)-1; |
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290
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} |
|
291
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else |
|
292
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ret=pos.QuadPart; |
|
293
|
} |
|
294
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return ret; |
|
295
|
} |
|
296
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|
297
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298
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long ZCALLBACK win32_seek_file_func(voidpf opaque, voidpf stream, uLong offset, int origin) { |
|
299
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(void)opaque; |
|
300
|
DWORD dwMoveMethod=0xFFFFFFFF; |
|
301
|
HANDLE hFile = NULL; |
|
302
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|
303
|
long ret=-1; |
|
304
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if (stream!=NULL) |
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305
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hFile = ((WIN32FILE_IOWIN*)stream) -> hf; |
|
306
|
switch (origin) |
|
307
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{ |
|
308
|
case ZLIB_FILEFUNC_SEEK_CUR : |
|
309
|
dwMoveMethod = FILE_CURRENT; |
|
310
|
break; |
|
311
|
case ZLIB_FILEFUNC_SEEK_END : |
|
312
|
dwMoveMethod = FILE_END; |
|
313
|
break; |
|
314
|
case ZLIB_FILEFUNC_SEEK_SET : |
|
315
|
dwMoveMethod = FILE_BEGIN; |
|
316
|
break; |
|
317
|
default: return -1; |
|
318
|
} |
|
319
|
|
|
320
|
if (hFile != NULL) |
|
321
|
{ |
|
322
|
LARGE_INTEGER pos; |
|
323
|
pos.QuadPart = offset; |
|
324
|
if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod)) |
|
325
|
{ |
|
326
|
DWORD dwErr = GetLastError(); |
|
327
|
((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; |
|
328
|
ret = -1; |
|
329
|
} |
|
330
|
else |
|
331
|
ret=0; |
|
332
|
} |
|
333
|
return ret; |
|
334
|
} |
|
335
|
|
|
336
|
long ZCALLBACK win32_seek64_file_func(voidpf opaque, voidpf stream, ZPOS64_T offset, int origin) { |
|
337
|
(void)opaque; |
|
338
|
DWORD dwMoveMethod=0xFFFFFFFF; |
|
339
|
HANDLE hFile = NULL; |
|
340
|
long ret=-1; |
|
341
|
|
|
342
|
if (stream!=NULL) |
|
343
|
hFile = ((WIN32FILE_IOWIN*)stream)->hf; |
|
344
|
|
|
345
|
switch (origin) |
|
346
|
{ |
|
347
|
case ZLIB_FILEFUNC_SEEK_CUR : |
|
348
|
dwMoveMethod = FILE_CURRENT; |
|
349
|
break; |
|
350
|
case ZLIB_FILEFUNC_SEEK_END : |
|
351
|
dwMoveMethod = FILE_END; |
|
352
|
break; |
|
353
|
case ZLIB_FILEFUNC_SEEK_SET : |
|
354
|
dwMoveMethod = FILE_BEGIN; |
|
355
|
break; |
|
356
|
default: return -1; |
|
357
|
} |
|
358
|
|
|
359
|
if (hFile) |
|
360
|
{ |
|
361
|
LARGE_INTEGER pos; |
|
362
|
pos.QuadPart = offset; |
|
363
|
if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod)) |
|
364
|
{ |
|
365
|
DWORD dwErr = GetLastError(); |
|
366
|
((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr; |
|
367
|
ret = -1; |
|
368
|
} |
|
369
|
else |
|
370
|
ret=0; |
|
371
|
} |
|
372
|
return ret; |
|
373
|
} |
|
374
|
|
|
375
|
int ZCALLBACK win32_close_file_func(voidpf opaque, voidpf stream) { |
|
376
|
(void)opaque; |
|
377
|
int ret=-1; |
|
378
|
|
|
379
|
if (stream!=NULL) |
|
380
|
{ |
|
381
|
HANDLE hFile; |
|
382
|
hFile = ((WIN32FILE_IOWIN*)stream) -> hf; |
|
383
|
if (hFile != NULL) |
|
384
|
{ |
|
385
|
CloseHandle(hFile); |
|
386
|
ret=0; |
|
387
|
} |
|
388
|
free(stream); |
|
389
|
} |
|
390
|
return ret; |
|
391
|
} |
|
392
|
|
|
393
|
int ZCALLBACK win32_error_file_func(voidpf opaque, voidpf stream) { |
|
394
|
(void)opaque; |
|
395
|
int ret=-1; |
|
396
|
if (stream!=NULL) |
|
397
|
{ |
|
398
|
ret = ((WIN32FILE_IOWIN*)stream) -> error; |
|
399
|
} |
|
400
|
return ret; |
|
401
|
} |
|
402
|
|
|
403
|
void fill_win32_filefunc(zlib_filefunc_def* pzlib_filefunc_def) { |
|
404
|
pzlib_filefunc_def->zopen_file = win32_open_file_func; |
|
405
|
pzlib_filefunc_def->zread_file = win32_read_file_func; |
|
406
|
pzlib_filefunc_def->zwrite_file = win32_write_file_func; |
|
407
|
pzlib_filefunc_def->ztell_file = win32_tell_file_func; |
|
408
|
pzlib_filefunc_def->zseek_file = win32_seek_file_func; |
|
409
|
pzlib_filefunc_def->zclose_file = win32_close_file_func; |
|
410
|
pzlib_filefunc_def->zerror_file = win32_error_file_func; |
|
411
|
pzlib_filefunc_def->opaque = NULL; |
|
412
|
} |
|
413
|
|
|
414
|
void fill_win32_filefunc64(zlib_filefunc64_def* pzlib_filefunc_def) { |
|
415
|
pzlib_filefunc_def->zopen64_file = win32_open64_file_func; |
|
416
|
pzlib_filefunc_def->zread_file = win32_read_file_func; |
|
417
|
pzlib_filefunc_def->zwrite_file = win32_write_file_func; |
|
418
|
pzlib_filefunc_def->ztell64_file = win32_tell64_file_func; |
|
419
|
pzlib_filefunc_def->zseek64_file = win32_seek64_file_func; |
|
420
|
pzlib_filefunc_def->zclose_file = win32_close_file_func; |
|
421
|
pzlib_filefunc_def->zerror_file = win32_error_file_func; |
|
422
|
pzlib_filefunc_def->opaque = NULL; |
|
423
|
} |
|
424
|
|
|
425
|
|
|
426
|
void fill_win32_filefunc64A(zlib_filefunc64_def* pzlib_filefunc_def) { |
|
427
|
pzlib_filefunc_def->zopen64_file = win32_open64_file_funcA; |
|
428
|
pzlib_filefunc_def->zread_file = win32_read_file_func; |
|
429
|
pzlib_filefunc_def->zwrite_file = win32_write_file_func; |
|
430
|
pzlib_filefunc_def->ztell64_file = win32_tell64_file_func; |
|
431
|
pzlib_filefunc_def->zseek64_file = win32_seek64_file_func; |
|
432
|
pzlib_filefunc_def->zclose_file = win32_close_file_func; |
|
433
|
pzlib_filefunc_def->zerror_file = win32_error_file_func; |
|
434
|
pzlib_filefunc_def->opaque = NULL; |
|
435
|
} |
|
436
|
|
|
437
|
|
|
438
|
void fill_win32_filefunc64W(zlib_filefunc64_def* pzlib_filefunc_def) { |
|
439
|
pzlib_filefunc_def->zopen64_file = win32_open64_file_funcW; |
|
440
|
pzlib_filefunc_def->zread_file = win32_read_file_func; |
|
441
|
pzlib_filefunc_def->zwrite_file = win32_write_file_func; |
|
442
|
pzlib_filefunc_def->ztell64_file = win32_tell64_file_func; |
|
443
|
pzlib_filefunc_def->zseek64_file = win32_seek64_file_func; |
|
444
|
pzlib_filefunc_def->zclose_file = win32_close_file_func; |
|
445
|
pzlib_filefunc_def->zerror_file = win32_error_file_func; |
|
446
|
pzlib_filefunc_def->opaque = NULL; |
|
447
|
} |
|
448
|
|