| /* $Id: tif_unix.c,v 1.25 2009/09/06 13:11:29 drolon Exp $ */ |
| |
| /* |
| * Copyright (c) 1988-1997 Sam Leffler |
| * Copyright (c) 1991-1997 Silicon Graphics, Inc. |
| * |
| * Permission to use, copy, modify, distribute, and sell this software and |
| * its documentation for any purpose is hereby granted without fee, provided |
| * that (i) the above copyright notices and this permission notice appear in |
| * all copies of the software and related documentation, and (ii) the names of |
| * Sam Leffler and Silicon Graphics may not be used in any advertising or |
| * publicity relating to the software without the specific, prior written |
| * permission of Sam Leffler and Silicon Graphics. |
| * |
| * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY |
| * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR |
| * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, |
| * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF |
| * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| * OF THIS SOFTWARE. |
| */ |
| |
| /* |
| * TIFF Library UNIX-specific Routines. These are should also work with the |
| * Windows Common RunTime Library. |
| */ |
| #include "tif_config.h" |
| |
| #ifdef HAVE_SYS_TYPES_H |
| # include <sys/types.h> |
| #endif |
| |
| #include <stdarg.h> |
| #include <stdlib.h> |
| #include <sys/stat.h> |
| |
| #ifdef HAVE_UNISTD_H |
| # include <unistd.h> |
| #endif |
| |
| #ifdef HAVE_FCNTL_H |
| # include <fcntl.h> |
| #endif |
| |
| #ifdef HAVE_IO_H |
| # include <io.h> |
| #endif |
| |
| #include "tiffiop.h" |
| |
| static tsize_t |
| _tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size) |
| { |
| return ((tsize_t) read((int) fd, buf, (size_t) size)); |
| } |
| |
| static tsize_t |
| _tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size) |
| { |
| return ((tsize_t) write((int) fd, buf, (size_t) size)); |
| } |
| |
| static toff_t |
| _tiffSeekProc(thandle_t fd, toff_t off, int whence) |
| { |
| return ((toff_t) lseek((int) fd, (off_t) off, whence)); |
| } |
| |
| static int |
| _tiffCloseProc(thandle_t fd) |
| { |
| return (close((int) fd)); |
| } |
| |
| |
| static toff_t |
| _tiffSizeProc(thandle_t fd) |
| { |
| #ifdef _AM29K |
| long fsize; |
| return ((fsize = lseek((int) fd, 0, SEEK_END)) < 0 ? 0 : fsize); |
| #else |
| struct stat sb; |
| return (toff_t) (fstat((int) fd, &sb) < 0 ? 0 : sb.st_size); |
| #endif |
| } |
| |
| #ifdef HAVE_MMAP |
| #include <sys/mman.h> |
| |
| static int |
| _tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) |
| { |
| toff_t size = _tiffSizeProc(fd); |
| if (size != (toff_t) -1) { |
| *pbase = (tdata_t) |
| mmap(0, size, PROT_READ, MAP_SHARED, (int) fd, 0); |
| if (*pbase != (tdata_t) -1) { |
| *psize = size; |
| return (1); |
| } |
| } |
| return (0); |
| } |
| |
| static void |
| _tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) |
| { |
| (void) fd; |
| (void) munmap(base, (off_t) size); |
| } |
| #else /* !HAVE_MMAP */ |
| static int |
| _tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) |
| { |
| (void) fd; (void) pbase; (void) psize; |
| return (0); |
| } |
| |
| static void |
| _tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) |
| { |
| (void) fd; (void) base; (void) size; |
| } |
| #endif /* !HAVE_MMAP */ |
| |
| /* |
| * Open a TIFF file descriptor for read/writing. |
| */ |
| TIFF* |
| TIFFFdOpen(int fd, const char* name, const char* mode) |
| { |
| TIFF* tif; |
| |
| tif = TIFFClientOpen(name, mode, |
| (thandle_t) fd, |
| _tiffReadProc, _tiffWriteProc, |
| _tiffSeekProc, _tiffCloseProc, _tiffSizeProc, |
| _tiffMapProc, _tiffUnmapProc); |
| if (tif) |
| tif->tif_fd = fd; |
| return (tif); |
| } |
| |
| /* |
| * Open a TIFF file for read/writing. |
| */ |
| TIFF* |
| TIFFOpen(const char* name, const char* mode) |
| { |
| static const char module[] = "TIFFOpen"; |
| int m, fd; |
| TIFF* tif; |
| |
| m = _TIFFgetMode(mode, module); |
| if (m == -1) |
| return ((TIFF*)0); |
| |
| /* for cygwin and mingw */ |
| #ifdef O_BINARY |
| m |= O_BINARY; |
| #endif |
| |
| #ifdef _AM29K |
| fd = open(name, m); |
| #else |
| fd = open(name, m, 0666); |
| #endif |
| if (fd < 0) { |
| TIFFErrorExt(0, module, "%s: Cannot open", name); |
| return ((TIFF *)0); |
| } |
| |
| tif = TIFFFdOpen((int)fd, name, mode); |
| if(!tif) |
| close(fd); |
| return tif; |
| } |
| |
| #ifdef __WIN32__ |
| #include <windows.h> |
| /* |
| * Open a TIFF file with a Unicode filename, for read/writing. |
| */ |
| TIFF* |
| TIFFOpenW(const wchar_t* name, const char* mode) |
| { |
| static const char module[] = "TIFFOpenW"; |
| int m, fd; |
| int mbsize; |
| char *mbname; |
| TIFF* tif; |
| |
| m = _TIFFgetMode(mode, module); |
| if (m == -1) |
| return ((TIFF*)0); |
| |
| /* for cygwin and mingw */ |
| #ifdef O_BINARY |
| m |= O_BINARY; |
| #endif |
| |
| fd = _wopen(name, m, 0666); |
| if (fd < 0) { |
| TIFFErrorExt(0, module, "%s: Cannot open", name); |
| return ((TIFF *)0); |
| } |
| |
| mbname = NULL; |
| mbsize = WideCharToMultiByte(CP_ACP, 0, name, -1, NULL, 0, NULL, NULL); |
| if (mbsize > 0) { |
| mbname = _TIFFmalloc(mbsize); |
| if (!mbname) { |
| TIFFErrorExt(0, module, |
| "Can't allocate space for filename conversion buffer"); |
| return ((TIFF*)0); |
| } |
| |
| WideCharToMultiByte(CP_ACP, 0, name, -1, mbname, mbsize, |
| NULL, NULL); |
| } |
| |
| tif = TIFFFdOpen((int)fd, (mbname != NULL) ? mbname : "<unknown>", |
| mode); |
| |
| _TIFFfree(mbname); |
| |
| if(!tif) |
| close(fd); |
| return tif; |
| } |
| #endif |
| |
| void* |
| _TIFFmalloc(tsize_t s) |
| { |
| return (malloc((size_t) s)); |
| } |
| |
| void |
| _TIFFfree(tdata_t p) |
| { |
| free(p); |
| } |
| |
| void* |
| _TIFFrealloc(tdata_t p, tsize_t s) |
| { |
| return (realloc(p, (size_t) s)); |
| } |
| |
| void |
| _TIFFmemset(tdata_t p, int v, tsize_t c) |
| { |
| memset(p, v, (size_t) c); |
| } |
| |
| void |
| _TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c) |
| { |
| memcpy(d, s, (size_t) c); |
| } |
| |
| int |
| _TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c) |
| { |
| return (memcmp(p1, p2, (size_t) c)); |
| } |
| |
| static void |
| unixWarningHandler(const char* module, const char* fmt, va_list ap) |
| { |
| if (module != NULL) |
| fprintf(stderr, "%s: ", module); |
| fprintf(stderr, "Warning, "); |
| vfprintf(stderr, fmt, ap); |
| fprintf(stderr, ".\n"); |
| } |
| TIFFErrorHandler _TIFFwarningHandler = unixWarningHandler; |
| |
| static void |
| unixErrorHandler(const char* module, const char* fmt, va_list ap) |
| { |
| if (module != NULL) |
| fprintf(stderr, "%s: ", module); |
| vfprintf(stderr, fmt, ap); |
| fprintf(stderr, ".\n"); |
| } |
| TIFFErrorHandler _TIFFerrorHandler = unixErrorHandler; |