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 UNIX-specific Routines. 29 */ 30#include "tiffiop.h" 31#include <sys/types.h> 32#include <unistd.h> 33#include <stdlib.h> 34 35static tsize_t 36_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size) 37{ 38 return ((tsize_t) read((int) fd, buf, (size_t) size)); 39} 40 41static tsize_t 42_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size) 43{ 44 return ((tsize_t) write((int) fd, buf, (size_t) size)); 45} 46 47static toff_t 48_tiffSeekProc(thandle_t fd, toff_t off, int whence) 49{ 50#if USE_64BIT_API == 1 51 return ((toff_t) lseek64((int) fd, (off64_t) off, whence)); 52#else 53 return ((toff_t) lseek((int) fd, (off_t) off, whence)); 54#endif 55} 56 57static int 58_tiffCloseProc(thandle_t fd) 59{ 60 return (close((int) fd)); 61} 62 63#include <sys/stat.h> 64 65static toff_t 66_tiffSizeProc(thandle_t fd) 67{ 68#ifdef _AM29K 69 long fsize; 70 return ((fsize = lseek((int) fd, 0, SEEK_END)) < 0 ? 0 : fsize); 71#else 72#if USE_64BIT_API == 1 73 struct stat64 sb; 74 return (toff_t) (fstat64((int) fd, &sb) < 0 ? 0 : sb.st_size); 75#else 76 struct stat sb; 77 return (toff_t) (fstat((int) fd, &sb) < 0 ? 0 : sb.st_size); 78#endif 79#endif 80} 81 82#ifdef HAVE_MMAP 83#include <sys/mman.h> 84 85static int 86_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) 87{ 88 toff_t size = _tiffSizeProc(fd); 89 if (size != (toff_t) -1) { 90 *pbase = (tdata_t) 91 mmap(0, size, PROT_READ, MAP_SHARED, (int) fd, 0); 92 if (*pbase != (tdata_t) -1) { 93 *psize = size; 94 return (1); 95 } 96 } 97 return (0); 98} 99 100static void 101_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) 102{ 103 (void) fd; 104 (void) munmap(base, (off_t) size); 105} 106#else /* !HAVE_MMAP */ 107static int 108_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) 109{ 110 (void) fd; (void) pbase; (void) psize; 111 return (0); 112} 113 114static void 115_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) 116{ 117 (void) fd; (void) base; (void) size; 118} 119#endif /* !HAVE_MMAP */ 120 121/* 122 * Open a TIFF file descriptor for read/writing. 123 */ 124TIFF* 125TIFFFdOpen(int fd, const char* name, const char* mode) 126{ 127 TIFF* tif; 128 129 tif = TIFFClientOpen(name, mode, 130 (thandle_t) fd, 131 _tiffReadProc, _tiffWriteProc, 132 _tiffSeekProc, _tiffCloseProc, _tiffSizeProc, 133 _tiffMapProc, _tiffUnmapProc); 134 if (tif) 135 tif->tif_fd = fd; 136 return (tif); 137} 138 139/* 140 * Open a TIFF file for read/writing. 141 */ 142TIFF* 143TIFFOpen(const char* name, const char* mode) 144{ 145 static const char module[] = "TIFFOpen"; 146 int m, fd; 147 148 m = _TIFFgetMode(mode, module); 149 if (m == -1) 150 return ((TIFF*)0); 151 152/* for cygwin */ 153#ifdef O_BINARY 154 m |= O_BINARY; 155#endif 156 157#ifdef _AM29K 158 fd = open(name, m); 159#else 160#if USE_64BIT_API == 1 161 fd = open(name, m | O_LARGEFILE, 0666); 162#else 163 fd = open(name, m, 0666); 164#endif 165#endif 166 if (fd < 0) { 167 TIFFError(module, "%s: Cannot open", name); 168 return ((TIFF *)0); 169 } 170 return (TIFFFdOpen(fd, name, mode)); 171} 172 173void* 174_TIFFmalloc(tsize_t s) 175{ 176 return (malloc((size_t) s)); 177} 178 179void 180_TIFFfree(tdata_t p) 181{ 182 free(p); 183} 184 185void* 186_TIFFrealloc(tdata_t p, tsize_t s) 187{ 188 return (realloc(p, (size_t) s)); 189} 190 191void 192_TIFFmemset(tdata_t p, int v, tsize_t c) 193{ 194 memset(p, v, (size_t) c); 195} 196 197void 198_TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c) 199{ 200 memcpy(d, s, (size_t) c); 201} 202 203int 204_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c) 205{ 206 return (memcmp(p1, p2, (size_t) c)); 207} 208 209static void 210unixWarningHandler(const char* module, const char* fmt, va_list ap) 211{ 212 if (module != NULL) 213 fprintf(stderr, "%s: ", module); 214 fprintf(stderr, "Warning, "); 215 vfprintf(stderr, fmt, ap); 216 fprintf(stderr, ".\n"); 217} 218TIFFErrorHandler _TIFFwarningHandler = unixWarningHandler; 219 220static void 221unixErrorHandler(const char* module, const char* fmt, va_list ap) 222{ 223 if (module != NULL) 224 fprintf(stderr, "%s: ", module); 225 vfprintf(stderr, fmt, ap); 226 fprintf(stderr, ".\n"); 227} 228TIFFErrorHandler _TIFFerrorHandler = unixErrorHandler; 229