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1 | /* $Header$ */ |
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 MSDOS-specific Routines. | |
29 | */ | |
30 | #if defined(__WATCOMC__) || defined(__BORLANDC__) || defined(_MSC_VER) | |
31 | #include <io.h> /* for open, close, etc. function prototypes */ | |
32 | #include <stdio.h> | |
33 | #endif | |
34 | #include "tiffiop.h" | |
35 | ||
36 | static tsize_t | |
37 | _tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size) | |
38 | { | |
39 | return (read((int) fd, buf, size)); | |
40 | } | |
41 | ||
42 | static tsize_t | |
43 | _tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size) | |
44 | { | |
45 | return (write((int) fd, buf, size)); | |
46 | } | |
47 | ||
48 | static toff_t | |
49 | _tiffSeekProc(thandle_t fd, toff_t off, int whence) | |
50 | { | |
51 | return (lseek((int) fd, (off_t) off, whence)); | |
52 | } | |
53 | ||
54 | static int | |
55 | _tiffCloseProc(thandle_t fd) | |
56 | { | |
57 | return (close((int) fd)); | |
58 | } | |
59 | ||
60 | #include <sys/stat.h> | |
61 | ||
62 | static toff_t | |
63 | _tiffSizeProc(thandle_t fd) | |
64 | { | |
65 | struct stat sb; | |
66 | return (fstat((int) fd, &sb) < 0 ? 0 : sb.st_size); | |
67 | } | |
68 | ||
69 | static int | |
70 | _tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) | |
71 | { | |
72 | return (0); | |
73 | } | |
74 | ||
75 | static void | |
76 | _tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) | |
77 | { | |
78 | } | |
79 | ||
80 | /* | |
81 | * Open a TIFF file descriptor for read/writing. | |
82 | */ | |
83 | TIFF* | |
84 | TIFFFdOpen(int fd, const char* name, const char* mode) | |
85 | { | |
86 | TIFF* tif; | |
87 | ||
88 | tif = TIFFClientOpen(name, mode, | |
89 | (void*) fd, | |
90 | _tiffReadProc, _tiffWriteProc, _tiffSeekProc, _tiffCloseProc, | |
91 | _tiffSizeProc, _tiffMapProc, _tiffUnmapProc); | |
92 | if (tif) | |
93 | tif->tif_fd = fd; | |
94 | return (tif); | |
95 | } | |
96 | ||
97 | /* | |
98 | * Open a TIFF file for read/writing. | |
99 | */ | |
100 | TIFF* | |
101 | TIFFOpen(const char* name, const char* mode) | |
102 | { | |
103 | static const char module[] = "TIFFOpen"; | |
104 | int m, fd; | |
105 | ||
106 | m = _TIFFgetMode(mode, module); | |
107 | if (m == -1) | |
108 | return ((TIFF*)0); | |
109 | fd = open(name, m|O_BINARY, 0666); | |
110 | if (fd < 0) { | |
111 | TIFFError(module, "%s: Cannot open", name); | |
112 | return ((TIFF*)0); | |
113 | } | |
114 | return (TIFFFdOpen(fd, name, mode)); | |
115 | } | |
116 | ||
117 | #ifdef __GNUC__ | |
118 | extern char* malloc(); | |
119 | extern char* realloc(); | |
120 | #else | |
121 | #include <malloc.h> | |
122 | #endif | |
123 | ||
124 | tdata_t | |
125 | _TIFFmalloc(tsize_t s) | |
126 | { | |
127 | return (malloc((size_t) s)); | |
128 | } | |
129 | ||
130 | void | |
131 | _TIFFfree(tdata_t p) | |
132 | { | |
133 | free(p); | |
134 | } | |
135 | ||
136 | tdata_t | |
137 | _TIFFrealloc(tdata_t p, tsize_t s) | |
138 | { | |
139 | return (realloc(p, (size_t) s)); | |
140 | } | |
141 | ||
142 | void | |
143 | _TIFFmemset(tdata_t p, int v, tsize_t c) | |
144 | { | |
145 | memset(p, v, (size_t) c); | |
146 | } | |
147 | ||
148 | void | |
149 | _TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c) | |
150 | { | |
151 | memcpy(d, s, (size_t) c); | |
152 | } | |
153 | ||
154 | int | |
155 | _TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c) | |
156 | { | |
157 | return (memcmp(p1, p2, (size_t) c)); | |
158 | } | |
159 | ||
160 | static void | |
161 | msdosWarningHandler(const char* module, const char* fmt, va_list ap) | |
162 | { | |
163 | if (module != NULL) | |
164 | fprintf(stderr, "%s: ", module); | |
165 | fprintf(stderr, "Warning, "); | |
166 | vfprintf(stderr, fmt, ap); | |
167 | fprintf(stderr, ".\n"); | |
168 | } | |
169 | TIFFErrorHandler _TIFFwarningHandler = msdosWarningHandler; | |
170 | ||
171 | static void | |
172 | msdosErrorHandler(const char* module, const char* fmt, va_list ap) | |
173 | { | |
174 | if (module != NULL) | |
175 | fprintf(stderr, "%s: ", module); | |
176 | vfprintf(stderr, fmt, ap); | |
177 | fprintf(stderr, ".\n"); | |
178 | } | |
179 | TIFFErrorHandler _TIFFerrorHandler = msdosErrorHandler; |