| 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; |