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tif_unix.c
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1 /* $Id: tif_unix.c,v 1.12.2.1 2010-06-08 18:50:43 bfriesen Exp $ */
2
3 /*
4 * Copyright (c) 1988-1997 Sam Leffler
5 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
6 *
7 * Permission to use, copy, modify, distribute, and sell this software and
8 * its documentation for any purpose is hereby granted without fee, provided
9 * that (i) the above copyright notices and this permission notice appear in
10 * all copies of the software and related documentation, and (ii) the names of
11 * Sam Leffler and Silicon Graphics may not be used in any advertising or
12 * publicity relating to the software without the specific, prior written
13 * permission of Sam Leffler and Silicon Graphics.
14 *
15 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
17 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
18 *
19 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
20 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
21 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
22 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
23 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
24 * OF THIS SOFTWARE.
25 */
26
27 /*
28 * TIFF Library UNIX-specific Routines. These are should also work with the
29 * Windows Common RunTime Library.
30 */
31 #include "tif_config.h"
32
33 #ifdef HAVE_SYS_TYPES_H
34 # include <sys/types.h>
35 #endif
36
37 #include <stdarg.h>
38 #include <stdlib.h>
39 #include <sys/stat.h>
40
41 #ifdef HAVE_UNISTD_H
42 # include <unistd.h>
43 #endif
44
45 #ifdef HAVE_FCNTL_H
46 # include <fcntl.h>
47 #endif
48
49 #ifdef HAVE_IO_H
50 # include <io.h>
51 #endif
52
53 #include "tiffiop.h"
54
55 static tsize_t
56 _tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size)
57 {
58 return ((tsize_t) read((int) fd, buf, (size_t) size));
59 }
60
61 static tsize_t
62 _tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size)
63 {
64 return ((tsize_t) write((int) fd, buf, (size_t) size));
65 }
66
67 static toff_t
68 _tiffSeekProc(thandle_t fd, toff_t off, int whence)
69 {
70 return ((toff_t) lseek((int) fd, (off_t) off, whence));
71 }
72
73 static int
74 _tiffCloseProc(thandle_t fd)
75 {
76 return (close((int) fd));
77 }
78
79
80 static toff_t
81 _tiffSizeProc(thandle_t fd)
82 {
83 #ifdef _AM29K
84 long fsize;
85 return ((fsize = lseek((int) fd, 0, SEEK_END)) < 0 ? 0 : fsize);
86 #else
87 struct stat sb;
88 return (toff_t) (fstat((int) fd, &sb) < 0 ? 0 : sb.st_size);
89 #endif
90 }
91
92 #ifdef HAVE_MMAP
93 #include <sys/mman.h>
94
95 static int
96 _tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize)
97 {
98 toff_t size = _tiffSizeProc(fd);
99 if (size != (toff_t) -1) {
100 *pbase = (tdata_t)
101 mmap(0, size, PROT_READ, MAP_SHARED, (int) fd, 0);
102 if (*pbase != (tdata_t) -1) {
103 *psize = size;
104 return (1);
105 }
106 }
107 return (0);
108 }
109
110 static void
111 _tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size)
112 {
113 (void) fd;
114 (void) munmap(base, (off_t) size);
115 }
116 #else /* !HAVE_MMAP */
117 static int
118 _tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize)
119 {
120 (void) fd; (void) pbase; (void) psize;
121 return (0);
122 }
123
124 static void
125 _tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size)
126 {
127 (void) fd; (void) base; (void) size;
128 }
129 #endif /* !HAVE_MMAP */
130
131 /*
132 * Open a TIFF file descriptor for read/writing.
133 */
134 TIFF*
135 TIFFFdOpen(int fd, const char* name, const char* mode)
136 {
137 TIFF* tif;
138
139 tif = TIFFClientOpen(name, mode,
140 (thandle_t) fd,
141 _tiffReadProc, _tiffWriteProc,
142 _tiffSeekProc, _tiffCloseProc, _tiffSizeProc,
143 _tiffMapProc, _tiffUnmapProc);
144 if (tif)
145 tif->tif_fd = fd;
146 return (tif);
147 }
148
149 /*
150 * Open a TIFF file for read/writing.
151 */
152 TIFF*
153 TIFFOpen(const char* name, const char* mode)
154 {
155 static const char module[] = "TIFFOpen";
156 int m, fd;
157 TIFF* tif;
158
159 m = _TIFFgetMode(mode, module);
160 if (m == -1)
161 return ((TIFF*)0);
162
163 /* for cygwin and mingw */
164 #ifdef O_BINARY
165 m |= O_BINARY;
166 #endif
167
168 #ifdef _AM29K
169 fd = open(name, m);
170 #else
171 fd = open(name, m, 0666);
172 #endif
173 if (fd < 0) {
174 TIFFErrorExt(0, module, "%s: Cannot open", name);
175 return ((TIFF *)0);
176 }
177
178 tif = TIFFFdOpen((int)fd, name, mode);
179 if(!tif)
180 close(fd);
181 return tif;
182 }
183
184 #ifdef __WIN32__
185 #include <windows.h>
186 /*
187 * Open a TIFF file with a Unicode filename, for read/writing.
188 */
189 TIFF*
190 TIFFOpenW(const wchar_t* name, const char* mode)
191 {
192 static const char module[] = "TIFFOpenW";
193 int m, fd;
194 int mbsize;
195 char *mbname;
196 TIFF* tif;
197
198 m = _TIFFgetMode(mode, module);
199 if (m == -1)
200 return ((TIFF*)0);
201
202 /* for cygwin and mingw */
203 #ifdef O_BINARY
204 m |= O_BINARY;
205 #endif
206
207 fd = _wopen(name, m, 0666);
208 if (fd < 0) {
209 TIFFErrorExt(0, module, "%s: Cannot open", name);
210 return ((TIFF *)0);
211 }
212
213 mbname = NULL;
214 mbsize = WideCharToMultiByte(CP_ACP, 0, name, -1, NULL, 0, NULL, NULL);
215 if (mbsize > 0) {
216 mbname = _TIFFmalloc(mbsize);
217 if (!mbname) {
218 TIFFErrorExt(0, module,
219 "Can't allocate space for filename conversion buffer");
220 return ((TIFF*)0);
221 }
222
223 WideCharToMultiByte(CP_ACP, 0, name, -1, mbname, mbsize,
224 NULL, NULL);
225 }
226
227 tif = TIFFFdOpen((int)fd, (mbname != NULL) ? mbname : "<unknown>",
228 mode);
229
230 _TIFFfree(mbname);
231
232 if(!tif)
233 close(fd);
234 return tif;
235 }
236 #endif
237
238 void*
239 _TIFFmalloc(tsize_t s)
240 {
241 return (malloc((size_t) s));
242 }
243
244 void
245 _TIFFfree(tdata_t p)
246 {
247 free(p);
248 }
249
250 void*
251 _TIFFrealloc(tdata_t p, tsize_t s)
252 {
253 return (realloc(p, (size_t) s));
254 }
255
256 void
257 _TIFFmemset(tdata_t p, int v, tsize_t c)
258 {
259 memset(p, v, (size_t) c);
260 }
261
262 void
263 _TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c)
264 {
265 memcpy(d, s, (size_t) c);
266 }
267
268 int
269 _TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c)
270 {
271 return (memcmp(p1, p2, (size_t) c));
272 }
273
274 static void
275 unixWarningHandler(const char* module, const char* fmt, va_list ap)
276 {
277 if (module != NULL)
278 fprintf(stderr, "%s: ", module);
279 fprintf(stderr, "Warning, ");
280 vfprintf(stderr, fmt, ap);
281 fprintf(stderr, ".\n");
282 }
283 TIFFErrorHandler _TIFFwarningHandler = unixWarningHandler;
284
285 static void
286 unixErrorHandler(const char* module, const char* fmt, va_list ap)
287 {
288 if (module != NULL)
289 fprintf(stderr, "%s: ", module);
290 vfprintf(stderr, fmt, ap);
291 fprintf(stderr, ".\n");
292 }
293 TIFFErrorHandler _TIFFerrorHandler = unixErrorHandler;
294 /*
295 * Local Variables:
296 * mode: c
297 * c-basic-offset: 8
298 * fill-column: 78
299 * End:
300 */
tsize_t
int32 tsize_t
Definition: tiffio.h:67
tif_config.h
tdata_t
void * tdata_t
Definition: tiffio.h:68
write
int write(int fd, const char *buf, int nbytes)
Definition: tif_acorn.c:325
read
int read(int fd, char *buf, int nbytes)
Definition: tif_acorn.c:331
TIFFFdOpen
TIFF * TIFFFdOpen(int fd, const char *name, const char *mode)
Definition: tif_unix.c:135
SEEK_END
#define SEEK_END
Definition: zconf.h:390
TIFFErrorHandler
void(* TIFFErrorHandler)(const char *, const char *, va_list)
Definition: tiffio.h:261
_TIFFwarningHandler
TIFFErrorHandler _TIFFwarningHandler
Definition: tif_unix.c:283
_TIFFrealloc
void * _TIFFrealloc(tdata_t p, tsize_t s)
Definition: tif_unix.c:251
tiffiop.h
_TIFFfree
void _TIFFfree(tdata_t p)
Definition: tif_unix.c:245
tiff
Definition: tiffiop.h:102
tiff::tif_fd
int tif_fd
Definition: tiffiop.h:104
TIFFClientOpen
TIFF * TIFFClientOpen(const char *name, const char *mode, thandle_t clientdata, TIFFReadWriteProc readproc, TIFFReadWriteProc writeproc, TIFFSeekProc seekproc, TIFFCloseProc closeproc, TIFFSizeProc sizeproc, TIFFMapFileProc mapproc, TIFFUnmapFileProc unmapproc)
Definition: tif_open.c:139
lseek
off_t lseek(int fd, off_t offset, int whence)
Definition: tif_acorn.c:337
TIFFOpen
TIFF * TIFFOpen(const char *name, const char *mode)
Definition: tif_unix.c:153
TIFFOpenW
TIFF * TIFFOpenW(const wchar_t *name, const char *mode)
Definition: tif_win32.c:222
sb
int sb(0)
_TIFFmalloc
void * _TIFFmalloc(tsize_t s)
Definition: tif_unix.c:239
close
int close(int fd)
Definition: tif_acorn.c:320
_TIFFmemset
void _TIFFmemset(tdata_t p, int v, tsize_t c)
Definition: tif_unix.c:257
TIFFErrorExt
void TIFFErrorExt(thandle_t fd, const char *module, const char *fmt,...)
Definition: tif_error.c:63
_TIFFmemcpy
void _TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c)
Definition: tif_unix.c:263
_TIFFerrorHandler
TIFFErrorHandler _TIFFerrorHandler
Definition: tif_unix.c:293
open
int open(const char *name, int flags, int mode)
Definition: tif_acorn.c:285
_TIFFgetMode
int _TIFFgetMode(const char *mode, const char *module)
Definition: tif_open.c:115
_TIFFmemcmp
int _TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c)
Definition: tif_unix.c:269
toff_t
uint32 toff_t
Definition: tiffio.h:69
thandle_t
void * thandle_t
Definition: tiffio.h:97