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/[OSDN]/xoonips/AL/iowin32.c

Annotation of /xoonips/AL/iowin32.c

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Revision 1.1 - (hide annotations) (download) (as text)
Mon Mar 14 06:14:50 2005 UTC (19 years, 1 month ago) by tani
Branch: MAIN
CVS Tags: AL_PORTING, MergePnt_20051116, REL20051226, XOONIPS_RC1, REL20060323, tag20060615, tag20070307current, tag20061115, MergePnt_20051220, tag20061130, merge_to_20060605, tag20070307, REL20060213, RELENG_2_0_0a_RELEASE, RELEASE_1_0_0, RELEASE_1_0_1, tag20060622, merge_to_20060411, HEAD
Branch point for: XOONIPS_STABLE_32, XOONIPS_STABLE, XOONIPS_STABLE_3, XOONIPS_STABLE_2
File MIME type: text/x-csrc 
initial version
1 tani 1.1 /* iowin32.c -- IO base function header for compress/uncompress .zip
2     files using zlib + zip or unzip API
3     This IO API version uses the Win32 API (for Microsoft Windows)
4    
5     Version 1.00, September 10th, 2003
6    
7     Copyright (C) 1998-2003 Gilles Vollant
8     */
9    
10     #include <stdlib.h>
11    
12     #include "zlib.h"
13     #include "ioapi.h"
14     #include "iowin32.h"
15    
16     #ifndef INVALID_HANDLE_VALUE
17     #define INVALID_HANDLE_VALUE (0xFFFFFFFF)
18     #endif
19    
20     #ifndef INVALID_SET_FILE_POINTER
21     #define INVALID_SET_FILE_POINTER ((DWORD)-1)
22     #endif
23    
24     voidpf ZCALLBACK win32_open_file_func OF((
25     voidpf opaque,
26     const char* filename,
27     int mode));
28    
29     uLong ZCALLBACK win32_read_file_func OF((
30     voidpf opaque,
31     voidpf stream,
32     void* buf,
33     uLong size));
34    
35     uLong ZCALLBACK win32_write_file_func OF((
36     voidpf opaque,
37     voidpf stream,
38     const void* buf,
39     uLong size));
40    
41     long ZCALLBACK win32_tell_file_func OF((
42     voidpf opaque,
43     voidpf stream));
44    
45     long ZCALLBACK win32_seek_file_func OF((
46     voidpf opaque,
47     voidpf stream,
48     uLong offset,
49     int origin));
50    
51     int ZCALLBACK win32_close_file_func OF((
52     voidpf opaque,
53     voidpf stream));
54    
55     int ZCALLBACK win32_error_file_func OF((
56     voidpf opaque,
57     voidpf stream));
58    
59     typedef struct
60     {
61     HANDLE hf;
62     int error;
63     } WIN32FILE_IOWIN;
64    
65     voidpf ZCALLBACK win32_open_file_func (opaque, filename, mode)
66     voidpf opaque;
67     const char* filename;
68     int mode;
69     {
70     const char* mode_fopen = NULL;
71     DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
72     HANDLE hFile = 0;
73     voidpf ret=NULL;
74    
75     dwDesiredAccess = dwShareMode = dwFlagsAndAttributes = 0;
76    
77     if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
78     {
79     dwDesiredAccess = GENERIC_READ;
80     dwCreationDisposition = OPEN_EXISTING;
81     dwShareMode = FILE_SHARE_READ;
82     }
83     else
84     if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
85     {
86     dwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
87     dwCreationDisposition = OPEN_EXISTING;
88     }
89     else
90     if (mode & ZLIB_FILEFUNC_MODE_CREATE)
91     {
92     dwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
93     dwCreationDisposition = CREATE_ALWAYS;
94     }
95    
96     if ((filename!=NULL) && (dwDesiredAccess != 0))
97     hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL,
98     dwCreationDisposition, dwFlagsAndAttributes, NULL);
99    
100     if (hFile == INVALID_HANDLE_VALUE)
101     hFile = NULL;
102    
103     if (hFile != NULL)
104     {
105     WIN32FILE_IOWIN w32fiow;
106     w32fiow.hf = hFile;
107     w32fiow.error = 0;
108     ret = malloc(sizeof(WIN32FILE_IOWIN));
109     if (ret==NULL)
110     CloseHandle(hFile);
111     else *((WIN32FILE_IOWIN*)ret) = w32fiow;
112     }
113     return ret;
114     }
115    
116    
117     uLong ZCALLBACK win32_read_file_func (opaque, stream, buf, size)
118     voidpf opaque;
119     voidpf stream;
120     void* buf;
121     uLong size;
122     {
123     uLong ret=0;
124     HANDLE hFile = NULL;
125     if (stream!=NULL)
126     hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
127     if (hFile != NULL)
128     if (!ReadFile(hFile, buf, size, &ret, NULL))
129     {
130     DWORD dwErr = GetLastError();
131     if (dwErr == ERROR_HANDLE_EOF)
132     dwErr = 0;
133     ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
134     }
135    
136     return ret;
137     }
138    
139    
140     uLong ZCALLBACK win32_write_file_func (opaque, stream, buf, size)
141     voidpf opaque;
142     voidpf stream;
143     const void* buf;
144     uLong size;
145     {
146     uLong ret=0;
147     HANDLE hFile = NULL;
148     if (stream!=NULL)
149     hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
150    
151     if (hFile !=NULL)
152     if (!WriteFile(hFile, buf, size, &ret, NULL))
153     {
154     DWORD dwErr = GetLastError();
155     if (dwErr == ERROR_HANDLE_EOF)
156     dwErr = 0;
157     ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
158     }
159    
160     return ret;
161     }
162    
163     long ZCALLBACK win32_tell_file_func (opaque, stream)
164     voidpf opaque;
165     voidpf stream;
166     {
167     long ret=-1;
168     HANDLE hFile = NULL;
169     if (stream!=NULL)
170     hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
171     if (hFile != NULL)
172     {
173     DWORD dwSet = SetFilePointer(hFile, 0, NULL, FILE_CURRENT);
174     if (dwSet == INVALID_SET_FILE_POINTER)
175     {
176     DWORD dwErr = GetLastError();
177     ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
178     ret = -1;
179     }
180     else
181     ret=(long)dwSet;
182     }
183     return ret;
184     }
185    
186     long ZCALLBACK win32_seek_file_func (opaque, stream, offset, origin)
187     voidpf opaque;
188     voidpf stream;
189     uLong offset;
190     int origin;
191     {
192     DWORD dwMoveMethod=0xFFFFFFFF;
193     HANDLE hFile = NULL;
194    
195     long ret=-1;
196     if (stream!=NULL)
197     hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
198     switch (origin)
199     {
200     case ZLIB_FILEFUNC_SEEK_CUR :
201     dwMoveMethod = FILE_CURRENT;
202     break;
203     case ZLIB_FILEFUNC_SEEK_END :
204     dwMoveMethod = FILE_END;
205     break;
206     case ZLIB_FILEFUNC_SEEK_SET :
207     dwMoveMethod = FILE_BEGIN;
208     break;
209     default: return -1;
210     }
211    
212     if (hFile != NULL)
213     {
214     DWORD dwSet = SetFilePointer(hFile, offset, NULL, dwMoveMethod);
215     if (dwSet == INVALID_SET_FILE_POINTER)
216     {
217     DWORD dwErr = GetLastError();
218     ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
219     ret = -1;
220     }
221     else
222     ret=0;
223     }
224     return ret;
225     }
226    
227     int ZCALLBACK win32_close_file_func (opaque, stream)
228     voidpf opaque;
229     voidpf stream;
230     {
231     int ret=-1;
232    
233     if (stream!=NULL)
234     {
235     HANDLE hFile;
236     hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
237     if (hFile != NULL)
238     {
239     CloseHandle(hFile);
240     ret=0;
241     }
242     free(stream);
243     }
244     return ret;
245     }
246    
247     int ZCALLBACK win32_error_file_func (opaque, stream)
248     voidpf opaque;
249     voidpf stream;
250     {
251     int ret=-1;
252     if (stream!=NULL)
253     {
254     ret = ((WIN32FILE_IOWIN*)stream) -> error;
255     }
256     return ret;
257     }
258    
259     void fill_win32_filefunc (pzlib_filefunc_def)
260     zlib_filefunc_def* pzlib_filefunc_def;
261     {
262     pzlib_filefunc_def->zopen_file = win32_open_file_func;
263     pzlib_filefunc_def->zread_file = win32_read_file_func;
264     pzlib_filefunc_def->zwrite_file = win32_write_file_func;
265     pzlib_filefunc_def->ztell_file = win32_tell_file_func;
266     pzlib_filefunc_def->zseek_file = win32_seek_file_func;
267     pzlib_filefunc_def->zclose_file = win32_close_file_func;
268     pzlib_filefunc_def->zerror_file = win32_error_file_func;
269     pzlib_filefunc_def->opaque=NULL;
270     }
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