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/* "$Header: /cvs/maptools/cvsroot/libtiff/libtiff/Attic/tif_atari.c,v 1.2.2.1 2010-06-08 18:50:41 bfriesen Exp $" */
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/*
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* Copyright (c) 1988-1997 Sam Leffler
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* Copyright (c) 1991-1997 Silicon Graphics, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that (i) the above copyright notices and this permission notice appear in
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* all copies of the software and related documentation, and (ii) the names of
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* Sam Leffler and Silicon Graphics may not be used in any advertising or
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* publicity relating to the software without the specific, prior written
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* permission of Sam Leffler and Silicon Graphics.
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*
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* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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*
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* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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/*
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* TIFF Library ATARI-specific Routines.
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*/
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#include "tiffiop.h"
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#if defined(__TURBOC__)
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#include <tos.h>
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#include <stdio.h>
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#else
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#include <osbind.h>
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#include <fcntl.h>
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#endif
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#ifndef O_ACCMODE
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#define O_ACCMODE 3
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#endif
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#include <errno.h>
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#define AEFILNF -33
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static tsize_t
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_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size)
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{
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long r;
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r = Fread((int) fd, size, buf);
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if (r < 0) {
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errno = (int)-r;
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r = -1;
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}
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return r;
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}
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static tsize_t
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_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size)
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{
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long r;
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r = Fwrite((int) fd, size, buf);
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if (r < 0) {
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errno = (int)-r;
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r = -1;
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}
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return r;
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}
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static toff_t
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_tiffSeekProc(thandle_t fd, off_t off, int whence)
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{
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char buf[256];
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long current_off, expected_off, new_off;
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if (whence == SEEK_END || off <= 0)
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return Fseek(off, (int) fd, whence);
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current_off = Fseek(0, (int) fd, SEEK_CUR); /* find out where we are */
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if (whence == SEEK_SET)
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expected_off = off;
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else
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expected_off = off + current_off;
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new_off = Fseek(off, (int) fd, whence);
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if (new_off == expected_off)
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return new_off;
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/* otherwise extend file -- zero filling the hole */
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if (new_off < 0) /* error? */
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new_off = Fseek(0, (int) fd, SEEK_END); /* go to eof */
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_TIFFmemset(buf, 0, sizeof(buf));
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while (expected_off > new_off) {
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off = expected_off - new_off;
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if (off > sizeof(buf))
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off = sizeof(buf);
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if ((current_off = Fwrite((int) fd, off, buf)) != off)
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return (current_off > 0) ?
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new_off + current_off : new_off;
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new_off += off;
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}
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return new_off;
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}
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static int
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_tiffCloseProc(thandle_t fd)
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{
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long r;
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r = Fclose((int) fd);
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if (r < 0) {
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errno = (int)-r;
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r = -1;
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}
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return (int)r;
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}
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static toff_t
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_tiffSizeProc(thandle_t fd)
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{
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long pos, eof;
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pos = Fseek(0, (int) fd, SEEK_CUR);
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eof = Fseek(0, (int) fd, SEEK_END);
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Fseek(pos, (int) fd, SEEK_SET);
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return eof;
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}
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static int
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_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize)
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{
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return (0);
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}
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static void
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_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size)
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{
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}
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/*
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* Open a TIFF file descriptor for read/writing.
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*/
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TIFF*
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TIFFFdOpen(int fd, const char* name, const char* mode)
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{
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TIFF* tif;
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tif = TIFFClientOpen(name, mode,
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(thandle_t) fd,
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_tiffReadProc, _tiffWriteProc, _tiffSeekProc, _tiffCloseProc,
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_tiffSizeProc, _tiffMapProc, _tiffUnmapProc);
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if (tif)
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tif->tif_fd = fd;
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return (tif);
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}
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/*
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* Open a TIFF file for read/writing.
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*/
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TIFF*
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TIFFOpen(const char* name, const char* mode)
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{
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static const char module[] = "TIFFOpen";
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int m;
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long fd;
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m = _TIFFgetMode(mode, module);
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if (m == -1)
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return ((TIFF*)0);
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if (m & O_TRUNC) {
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fd = Fcreate(name, 0);
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} else {
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fd = Fopen(name, m & O_ACCMODE);
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if (fd == AEFILNF && m & O_CREAT)
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fd = Fcreate(name, 0);
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}
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if (fd < 0)
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errno = (int)fd;
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if (fd < 0) {
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TIFFErrorExt(0, module, "%s: Cannot open", name);
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return ((TIFF*)0);
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}
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return (TIFFFdOpen(fd, name, mode));
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}
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#include <stdlib.h>
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tdata_t
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_TIFFmalloc(tsize_t s)
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{
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return (malloc((size_t) s));
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}
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void
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_TIFFfree(tdata_t p)
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{
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free(p);
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}
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tdata_t
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_TIFFrealloc(tdata_t p, tsize_t s)
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{
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return (realloc(p, (size_t) s));
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}
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void
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_TIFFmemset(tdata_t p, int v, size_t c)
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{
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memset(p, v, (size_t) c);
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}
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void
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_TIFFmemcpy(tdata_t d, const tdata_t s, size_t c)
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{
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memcpy(d, s, (size_t) c);
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}
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int
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_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c)
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{
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return (memcmp(p1, p2, (size_t) c));
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}
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static void
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atariWarningHandler(const char* module, const char* fmt, va_list ap)
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{
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if (module != NULL)
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fprintf(stderr, "%s: ", module);
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fprintf(stderr, "Warning, ");
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vfprintf(stderr, fmt, ap);
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fprintf(stderr, ".\n");
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}
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TIFFErrorHandler _TIFFwarningHandler = atariWarningHandler;
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static void
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atariErrorHandler(const char* module, const char* fmt, va_list ap)
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{
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if (module != NULL)
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fprintf(stderr, "%s: ", module);
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vfprintf(stderr, fmt, ap);
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fprintf(stderr, ".\n");
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}
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TIFFErrorHandler _TIFFerrorHandler = atariErrorHandler;
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/*
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* Local Variables:
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* mode: c
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* c-basic-offset: 8
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* fill-column: 78
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* End:
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*/
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