-/* iowin32.c -- IO base function header for compress/uncompress .zip
- files using zlib + zip or unzip API
- This IO API version uses the Win32 API (for Microsoft Windows)
-
- Version 1.01, May 8th, 2004
-
- Copyright (C) 1998-2004 Gilles Vollant
-*/
-
-#include <stdlib.h>
-
-#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));
-
-long ZCALLBACK win32_tell_file_func OF((
- voidpf opaque,
- voidpf stream));
-
-long ZCALLBACK win32_seek_file_func OF((
- voidpf opaque,
- voidpf stream,
- uLong 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;
-
-voidpf ZCALLBACK win32_open_file_func (opaque, filename, mode)
- voidpf opaque;
- const char* filename;
- int mode;
-{
- const char* mode_fopen = NULL;
- DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
- HANDLE hFile = 0;
- voidpf ret=NULL;
-
- dwDesiredAccess = dwShareMode = dwFlagsAndAttributes = 0;
-
- if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
- {
- dwDesiredAccess = GENERIC_READ;
- dwCreationDisposition = OPEN_EXISTING;
- dwShareMode = FILE_SHARE_READ;
- }
- else
- if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
- {
- dwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
- dwCreationDisposition = OPEN_EXISTING;
- }
- else
- if (mode & ZLIB_FILEFUNC_MODE_CREATE)
- {
- dwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
- dwCreationDisposition = CREATE_ALWAYS;
- }
-
- if ((filename!=NULL) && (dwDesiredAccess != 0))
- hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL,
- dwCreationDisposition, dwFlagsAndAttributes, NULL);
-
- if (hFile == INVALID_HANDLE_VALUE)
- hFile = NULL;
-
- if (hFile != NULL)
- {
- 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;
-}
-
-
-uLong ZCALLBACK win32_read_file_func (opaque, stream, buf, size)
- 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 (opaque, stream, buf, size)
- 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;
-}
-
-long ZCALLBACK win32_tell_file_func (opaque, stream)
- voidpf opaque;
- voidpf stream;
-{
- long ret=-1;
- HANDLE hFile = NULL;
- if (stream!=NULL)
- hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
- if (hFile != NULL)
- {
- DWORD dwSet = SetFilePointer(hFile, 0, NULL, FILE_CURRENT);
- if (dwSet == INVALID_SET_FILE_POINTER)
- {
- DWORD dwErr = GetLastError();
- ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
- ret = -1;
- }
- else
- ret=(long)dwSet;
- }
- return ret;
-}
-
-long ZCALLBACK win32_seek_file_func (opaque, stream, offset, origin)
- 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)
- {
- DWORD dwSet = SetFilePointer(hFile, offset, NULL, dwMoveMethod);
- if (dwSet == INVALID_SET_FILE_POINTER)
- {
- DWORD dwErr = GetLastError();
- ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
- ret = -1;
- }
- else
- ret=0;
- }
- return ret;
-}
-
-int ZCALLBACK win32_close_file_func (opaque, stream)
- 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 (opaque, stream)
- voidpf opaque;
- voidpf stream;
-{
- int ret=-1;
- if (stream!=NULL)
- {
- ret = ((WIN32FILE_IOWIN*)stream) -> error;
- }
- return ret;
-}
-
-void fill_win32_filefunc (pzlib_filefunc_def)
- 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;
-}
+/* iowin32.c -- IO base function header for compress/uncompress .zip\r
+ files using zlib + zip or unzip API\r
+ This IO API version uses the Win32 API (for Microsoft Windows)\r
+\r
+ Version 1.01e, February 12th, 2005\r
+\r
+ Copyright (C) 1998-2005 Gilles Vollant\r
+*/\r
+\r
+#include <stdlib.h>\r
+\r
+#include "zlib.h"\r
+#include "ioapi.h"\r
+#include "iowin32.h"\r
+\r
+#ifndef INVALID_HANDLE_VALUE\r
+#define INVALID_HANDLE_VALUE (0xFFFFFFFF)\r
+#endif\r
+\r
+#ifndef INVALID_SET_FILE_POINTER\r
+#define INVALID_SET_FILE_POINTER ((DWORD)-1)\r
+#endif\r
+\r
+voidpf ZCALLBACK win32_open_file_func OF((\r
+ voidpf opaque,\r
+ const char* filename,\r
+ int mode));\r
+\r
+uLong ZCALLBACK win32_read_file_func OF((\r
+ voidpf opaque,\r
+ voidpf stream,\r
+ void* buf,\r
+ uLong size));\r
+\r
+uLong ZCALLBACK win32_write_file_func OF((\r
+ voidpf opaque,\r
+ voidpf stream,\r
+ const void* buf,\r
+ uLong size));\r
+\r
+long ZCALLBACK win32_tell_file_func OF((\r
+ voidpf opaque,\r
+ voidpf stream));\r
+\r
+long ZCALLBACK win32_seek_file_func OF((\r
+ voidpf opaque,\r
+ voidpf stream,\r
+ uLong offset,\r
+ int origin));\r
+\r
+int ZCALLBACK win32_close_file_func OF((\r
+ voidpf opaque,\r
+ voidpf stream));\r
+\r
+int ZCALLBACK win32_error_file_func OF((\r
+ voidpf opaque,\r
+ voidpf stream));\r
+\r
+typedef struct\r
+{\r
+ HANDLE hf;\r
+ int error;\r
+} WIN32FILE_IOWIN;\r
+\r
+voidpf ZCALLBACK win32_open_file_func (opaque, filename, mode)\r
+ voidpf opaque;\r
+ const char* filename;\r
+ int mode;\r
+{\r
+ const char* mode_fopen = NULL;\r
+ DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;\r
+ HANDLE hFile = 0;\r
+ voidpf ret=NULL;\r
+\r
+ dwDesiredAccess = dwShareMode = dwFlagsAndAttributes = 0;\r
+\r
+ if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)\r
+ {\r
+ dwDesiredAccess = GENERIC_READ;\r
+ dwCreationDisposition = OPEN_EXISTING;\r
+ dwShareMode = FILE_SHARE_READ;\r
+ }\r
+ else\r
+ if (mode & ZLIB_FILEFUNC_MODE_EXISTING)\r
+ {\r
+ dwDesiredAccess = GENERIC_WRITE | GENERIC_READ;\r
+ dwCreationDisposition = OPEN_EXISTING;\r
+ }\r
+ else\r
+ if (mode & ZLIB_FILEFUNC_MODE_CREATE)\r
+ {\r
+ dwDesiredAccess = GENERIC_WRITE | GENERIC_READ;\r
+ dwCreationDisposition = CREATE_ALWAYS;\r
+ }\r
+\r
+ if ((filename!=NULL) && (dwDesiredAccess != 0))\r
+ hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL,\r
+ dwCreationDisposition, dwFlagsAndAttributes, NULL);\r
+\r
+ if (hFile == INVALID_HANDLE_VALUE)\r
+ hFile = NULL;\r
+\r
+ if (hFile != NULL)\r
+ {\r
+ WIN32FILE_IOWIN w32fiow;\r
+ w32fiow.hf = hFile;\r
+ w32fiow.error = 0;\r
+ ret = malloc(sizeof(WIN32FILE_IOWIN));\r
+ if (ret==NULL)\r
+ CloseHandle(hFile);\r
+ else *((WIN32FILE_IOWIN*)ret) = w32fiow;\r
+ }\r
+ return ret;\r
+}\r
+\r
+\r
+uLong ZCALLBACK win32_read_file_func (opaque, stream, buf, size)\r
+ voidpf opaque;\r
+ voidpf stream;\r
+ void* buf;\r
+ uLong size;\r
+{\r
+ uLong ret=0;\r
+ HANDLE hFile = NULL;\r
+ if (stream!=NULL)\r
+ hFile = ((WIN32FILE_IOWIN*)stream) -> hf;\r
+ if (hFile != NULL)\r
+ if (!ReadFile(hFile, buf, size, &ret, NULL))\r
+ {\r
+ DWORD dwErr = GetLastError();\r
+ if (dwErr == ERROR_HANDLE_EOF)\r
+ dwErr = 0;\r
+ ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;\r
+ }\r
+\r
+ return ret;\r
+}\r
+\r
+\r
+uLong ZCALLBACK win32_write_file_func (opaque, stream, buf, size)\r
+ voidpf opaque;\r
+ voidpf stream;\r
+ const void* buf;\r
+ uLong size;\r
+{\r
+ uLong ret=0;\r
+ HANDLE hFile = NULL;\r
+ if (stream!=NULL)\r
+ hFile = ((WIN32FILE_IOWIN*)stream) -> hf;\r
+\r
+ if (hFile !=NULL)\r
+ if (!WriteFile(hFile, buf, size, &ret, NULL))\r
+ {\r
+ DWORD dwErr = GetLastError();\r
+ if (dwErr == ERROR_HANDLE_EOF)\r
+ dwErr = 0;\r
+ ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;\r
+ }\r
+\r
+ return ret;\r
+}\r
+\r
+long ZCALLBACK win32_tell_file_func (opaque, stream)\r
+ voidpf opaque;\r
+ voidpf stream;\r
+{\r
+ long ret=-1;\r
+ HANDLE hFile = NULL;\r
+ if (stream!=NULL)\r
+ hFile = ((WIN32FILE_IOWIN*)stream) -> hf;\r
+ if (hFile != NULL)\r
+ {\r
+ DWORD dwSet = SetFilePointer(hFile, 0, NULL, FILE_CURRENT);\r
+ if (dwSet == INVALID_SET_FILE_POINTER)\r
+ {\r
+ DWORD dwErr = GetLastError();\r
+ ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;\r
+ ret = -1;\r
+ }\r
+ else\r
+ ret=(long)dwSet;\r
+ }\r
+ return ret;\r
+}\r
+\r
+long ZCALLBACK win32_seek_file_func (opaque, stream, offset, origin)\r
+ voidpf opaque;\r
+ voidpf stream;\r
+ uLong offset;\r
+ int origin;\r
+{\r
+ DWORD dwMoveMethod=0xFFFFFFFF;\r
+ HANDLE hFile = NULL;\r
+\r
+ long ret=-1;\r
+ if (stream!=NULL)\r
+ hFile = ((WIN32FILE_IOWIN*)stream) -> hf;\r
+ switch (origin)\r
+ {\r
+ case ZLIB_FILEFUNC_SEEK_CUR :\r
+ dwMoveMethod = FILE_CURRENT;\r
+ break;\r
+ case ZLIB_FILEFUNC_SEEK_END :\r
+ dwMoveMethod = FILE_END;\r
+ break;\r
+ case ZLIB_FILEFUNC_SEEK_SET :\r
+ dwMoveMethod = FILE_BEGIN;\r
+ break;\r
+ default: return -1;\r
+ }\r
+\r
+ if (hFile != NULL)\r
+ {\r
+ DWORD dwSet = SetFilePointer(hFile, offset, NULL, dwMoveMethod);\r
+ if (dwSet == INVALID_SET_FILE_POINTER)\r
+ {\r
+ DWORD dwErr = GetLastError();\r
+ ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;\r
+ ret = -1;\r
+ }\r
+ else\r
+ ret=0;\r
+ }\r
+ return ret;\r
+}\r
+\r
+int ZCALLBACK win32_close_file_func (opaque, stream)\r
+ voidpf opaque;\r
+ voidpf stream;\r
+{\r
+ int ret=-1;\r
+\r
+ if (stream!=NULL)\r
+ {\r
+ HANDLE hFile;\r
+ hFile = ((WIN32FILE_IOWIN*)stream) -> hf;\r
+ if (hFile != NULL)\r
+ {\r
+ CloseHandle(hFile);\r
+ ret=0;\r
+ }\r
+ free(stream);\r
+ }\r
+ return ret;\r
+}\r
+\r
+int ZCALLBACK win32_error_file_func (opaque, stream)\r
+ voidpf opaque;\r
+ voidpf stream;\r
+{\r
+ int ret=-1;\r
+ if (stream!=NULL)\r
+ {\r
+ ret = ((WIN32FILE_IOWIN*)stream) -> error;\r
+ }\r
+ return ret;\r
+}\r
+\r
+void fill_win32_filefunc (pzlib_filefunc_def)\r
+ zlib_filefunc_def* pzlib_filefunc_def;\r
+{\r
+ pzlib_filefunc_def->zopen_file = win32_open_file_func;\r
+ pzlib_filefunc_def->zread_file = win32_read_file_func;\r
+ pzlib_filefunc_def->zwrite_file = win32_write_file_func;\r
+ pzlib_filefunc_def->ztell_file = win32_tell_file_func;\r
+ pzlib_filefunc_def->zseek_file = win32_seek_file_func;\r
+ pzlib_filefunc_def->zclose_file = win32_close_file_func;\r
+ pzlib_filefunc_def->zerror_file = win32_error_file_func;\r
+ pzlib_filefunc_def->opaque=NULL;\r
+}\r
projects / zlib.git / blobdiff