384 lines
8.1 KiB
C
384 lines
8.1 KiB
C
/*
|
|
* 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 <errno.h>
|
|
|
|
#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"
|
|
|
|
|
|
#define TIFF_IO_MAX 2147483647U
|
|
|
|
|
|
typedef union fd_as_handle_union
|
|
{
|
|
int fd;
|
|
thandle_t h;
|
|
} fd_as_handle_union_t;
|
|
|
|
static tmsize_t
|
|
_tiffReadProc(thandle_t fd, void* buf, tmsize_t size)
|
|
{
|
|
fd_as_handle_union_t fdh;
|
|
const size_t bytes_total = (size_t) size;
|
|
size_t bytes_read;
|
|
tmsize_t count = -1;
|
|
if ((tmsize_t) bytes_total != size)
|
|
{
|
|
errno=EINVAL;
|
|
return (tmsize_t) -1;
|
|
}
|
|
fdh.h = fd;
|
|
for (bytes_read=0; bytes_read < bytes_total; bytes_read+=count)
|
|
{
|
|
char *buf_offset = (char *) buf+bytes_read;
|
|
size_t io_size = bytes_total-bytes_read;
|
|
if (io_size > TIFF_IO_MAX)
|
|
io_size = TIFF_IO_MAX;
|
|
count=read(fdh.fd, buf_offset, (TIFFIOSize_t) io_size);
|
|
if (count <= 0)
|
|
break;
|
|
}
|
|
if (count < 0)
|
|
return (tmsize_t)-1;
|
|
return (tmsize_t) bytes_read;
|
|
}
|
|
|
|
static tmsize_t
|
|
_tiffWriteProc(thandle_t fd, void* buf, tmsize_t size)
|
|
{
|
|
fd_as_handle_union_t fdh;
|
|
const size_t bytes_total = (size_t) size;
|
|
size_t bytes_written;
|
|
tmsize_t count = -1;
|
|
if ((tmsize_t) bytes_total != size)
|
|
{
|
|
errno=EINVAL;
|
|
return (tmsize_t) -1;
|
|
}
|
|
fdh.h = fd;
|
|
for (bytes_written=0; bytes_written < bytes_total; bytes_written+=count)
|
|
{
|
|
const char *buf_offset = (char *) buf+bytes_written;
|
|
size_t io_size = bytes_total-bytes_written;
|
|
if (io_size > TIFF_IO_MAX)
|
|
io_size = TIFF_IO_MAX;
|
|
count=write(fdh.fd, buf_offset, (TIFFIOSize_t) io_size);
|
|
if (count <= 0)
|
|
break;
|
|
}
|
|
if (count < 0)
|
|
return (tmsize_t)-1;
|
|
return (tmsize_t) bytes_written;
|
|
/* return ((tmsize_t) write(fdh.fd, buf, bytes_total)); */
|
|
}
|
|
|
|
static uint64
|
|
_tiffSeekProc(thandle_t fd, uint64 off, int whence)
|
|
{
|
|
fd_as_handle_union_t fdh;
|
|
_TIFF_off_t off_io = (_TIFF_off_t) off;
|
|
if ((uint64) off_io != off)
|
|
{
|
|
errno=EINVAL;
|
|
return (uint64) -1; /* this is really gross */
|
|
}
|
|
fdh.h = fd;
|
|
return((uint64)_TIFF_lseek_f(fdh.fd,off_io,whence));
|
|
}
|
|
|
|
static int
|
|
_tiffCloseProc(thandle_t fd)
|
|
{
|
|
fd_as_handle_union_t fdh;
|
|
fdh.h = fd;
|
|
return(close(fdh.fd));
|
|
}
|
|
|
|
static uint64
|
|
_tiffSizeProc(thandle_t fd)
|
|
{
|
|
_TIFF_stat_s sb;
|
|
fd_as_handle_union_t fdh;
|
|
fdh.h = fd;
|
|
if (_TIFF_fstat_f(fdh.fd,&sb)<0)
|
|
return(0);
|
|
else
|
|
return((uint64)sb.st_size);
|
|
}
|
|
|
|
#ifdef HAVE_MMAP
|
|
#include <sys/mman.h>
|
|
|
|
static int
|
|
_tiffMapProc(thandle_t fd, void** pbase, toff_t* psize)
|
|
{
|
|
uint64 size64 = _tiffSizeProc(fd);
|
|
tmsize_t sizem = (tmsize_t)size64;
|
|
if (size64 && (uint64)sizem==size64) {
|
|
fd_as_handle_union_t fdh;
|
|
fdh.h = fd;
|
|
*pbase = (void*)
|
|
mmap(0, (size_t)sizem, PROT_READ, MAP_SHARED, fdh.fd, 0);
|
|
if (*pbase != (void*) -1) {
|
|
*psize = (tmsize_t)sizem;
|
|
return (1);
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
_tiffUnmapProc(thandle_t fd, void* base, toff_t size)
|
|
{
|
|
(void) fd;
|
|
(void) munmap(base, (off_t) size);
|
|
}
|
|
#else /* !HAVE_MMAP */
|
|
static int
|
|
_tiffMapProc(thandle_t fd, void** pbase, toff_t* psize)
|
|
{
|
|
(void) fd; (void) pbase; (void) psize;
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
_tiffUnmapProc(thandle_t fd, void* 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;
|
|
|
|
fd_as_handle_union_t fdh;
|
|
fdh.fd = fd;
|
|
tif = TIFFClientOpen(name, mode,
|
|
fdh.h,
|
|
_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
|
|
|
|
fd = open(name, m, 0666);
|
|
if (fd < 0) {
|
|
if (errno > 0 && strerror(errno) != NULL ) {
|
|
TIFFErrorExt(0, module, "%s: %s", name, strerror(errno) );
|
|
} else {
|
|
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, "%ls: 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(tmsize_t s)
|
|
{
|
|
if (s == 0)
|
|
return ((void *) NULL);
|
|
|
|
return (malloc((size_t) s));
|
|
}
|
|
|
|
void* _TIFFcalloc(tmsize_t nmemb, tmsize_t siz)
|
|
{
|
|
if( nmemb == 0 || siz == 0 )
|
|
return ((void *) NULL);
|
|
|
|
return calloc((size_t) nmemb, (size_t)siz);
|
|
}
|
|
|
|
void
|
|
_TIFFfree(void* p)
|
|
{
|
|
free(p);
|
|
}
|
|
|
|
void*
|
|
_TIFFrealloc(void* p, tmsize_t s)
|
|
{
|
|
return (realloc(p, (size_t) s));
|
|
}
|
|
|
|
void
|
|
_TIFFmemset(void* p, int v, tmsize_t c)
|
|
{
|
|
memset(p, v, (size_t) c);
|
|
}
|
|
|
|
void
|
|
_TIFFmemcpy(void* d, const void* s, tmsize_t c)
|
|
{
|
|
memcpy(d, s, (size_t) c);
|
|
}
|
|
|
|
int
|
|
_TIFFmemcmp(const void* p1, const void* p2, tmsize_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;
|
|
|
|
/* vim: set ts=8 sts=8 sw=8 noet: */
|
|
|
|
/*
|
|
* Local Variables:
|
|
* mode: c
|
|
* c-basic-offset: 8
|
|
* fill-column: 78
|
|
* End:
|
|
*/
|