From d7dc0d031ee8dd5851917f2f42859f64fa83efda Mon Sep 17 00:00:00 2001
From: Su Laus <[EMAIL REDACTED]>
Date: Thu, 13 Oct 2022 14:33:27 +0000
Subject: [PATCH] tiffcrop subroutines require a larger buffer (fixes #271,
#381, #386, #388, #389, #435)
---
tools/tiffcrop.c | 205 ++++++++++++++++++++++++++---------------------
1 file changed, 115 insertions(+), 90 deletions(-)
diff --git a/tools/tiffcrop.c b/tools/tiffcrop.c
index 6b2c88d1..f3820522 100644
--- a/tools/tiffcrop.c
+++ b/tools/tiffcrop.c
@@ -125,7 +125,7 @@ static char tiffcrop_rev_date[] = "03-03-2010";
#endif
#ifdef HAVE_STDINT_H
-# include <stdint.h>
+# include <inttypes.h>
#endif
#ifndef EXIT_SUCCESS
@@ -219,6 +219,10 @@ extern int getopt(int argc, char * const argv[], const char *optstring);
#define TIFF_DIR_MAX 65534
+/* Some conversion subroutines require image buffers, which are at least 3 bytes
+ * larger than the necessary size for the image itself. */
+#define NUM_BUFF_OVERSIZE_BYTES 3
+
/* Offsets into buffer for margins and fixed width and length segments */
struct offset {
uint32 tmargin;
@@ -240,7 +244,7 @@ struct offset {
*/
struct buffinfo {
- uint32 size; /* size of this buffer */
+ size_t size; /* size of this buffer */
unsigned char *buffer; /* address of the allocated buffer */
};
@@ -800,8 +804,8 @@ static int readContigTilesIntoBuffer (TIFF* in, uint8* buf,
uint32 dst_rowsize, shift_width;
uint32 bytes_per_sample, bytes_per_pixel;
uint32 trailing_bits, prev_trailing_bits;
- uint32 tile_rowsize = TIFFTileRowSize(in);
- uint32 src_offset, dst_offset;
+ tmsize_t tile_rowsize = TIFFTileRowSize(in);
+ tmsize_t src_offset, dst_offset;
uint32 row_offset, col_offset;
uint8 *bufp = (uint8*) buf;
unsigned char *src = NULL;
@@ -851,7 +855,7 @@ static int readContigTilesIntoBuffer (TIFF* in, uint8* buf,
TIFFError("readContigTilesIntoBuffer", "Integer overflow when calculating buffer size.");
exit(EXIT_FAILURE);
}
- tilebuf = limitMalloc(tile_buffsize + 3);
+ tilebuf = limitMalloc(tile_buffsize + NUM_BUFF_OVERSIZE_BYTES);
if (tilebuf == 0)
return 0;
tilebuf[tile_buffsize] = 0;
@@ -1015,7 +1019,7 @@ static int readSeparateTilesIntoBuffer (TIFF* in, uint8 *obuf,
for (sample = 0; (sample < spp) && (sample < MAX_SAMPLES); sample++)
{
srcbuffs[sample] = NULL;
- tbuff = (unsigned char *)limitMalloc(tilesize + 8);
+ tbuff = (unsigned char *)limitMalloc(tilesize + NUM_BUFF_OVERSIZE_BYTES);
if (!tbuff)
{
TIFFError ("readSeparateTilesIntoBuffer",
@@ -1210,7 +1214,8 @@ writeBufferToSeparateStrips (TIFF* out, uint8* buf,
}
rowstripsize = rowsperstrip * bytes_per_sample * (width + 1);
- obuf = limitMalloc (rowstripsize);
+ /* Add 3 padding bytes for extractContigSamples32bits */
+ obuf = limitMalloc (rowstripsize + NUM_BUFF_OVERSIZE_BYTES);
if (obuf == NULL)
return 1;
@@ -1223,7 +1228,7 @@ writeBufferToSeparateStrips (TIFF* out, uint8* buf,
stripsize = TIFFVStripSize(out, nrows);
src = buf + (row * rowsize);
total_bytes += stripsize;
- memset (obuf, '\0', rowstripsize);
+ memset (obuf, '\0',rowstripsize + NUM_BUFF_OVERSIZE_BYTES);
if (extractContigSamplesToBuffer(obuf, src, nrows, width, s, spp, bps, dump))
{
_TIFFfree(obuf);
@@ -1231,10 +1236,15 @@ writeBufferToSeparateStrips (TIFF* out, uint8* buf,
}
if ((dump->outfile != NULL) && (dump->level == 1))
{
- dump_info(dump->outfile, dump->format,"",
+ if (scanlinesize > 0x0ffffffffULL) {
+ dump_info(dump->infile, dump->format, "loadImage",
+ "Attention: scanlinesize %"PRIu64" is larger than UINT32_MAX.\nFollowing dump might be wrong.",
+ scanlinesize);
+ }
+ dump_info(dump->outfile, dump->format,"",
"Sample %2d, Strip: %2d, bytes: %4d, Row %4d, bytes: %4d, Input offset: %6d",
- s + 1, strip + 1, stripsize, row + 1, scanlinesize, src - buf);
- dump_buffer(dump->outfile, dump->format, nrows, scanlinesize, row, obuf);
+ s + 1, strip + 1, stripsize, row + 1, (uint32_t)scanlinesize, src - buf);
+ dump_buffer(dump->outfile, dump->format, nrows, (uint32_t)scanlinesize, row, obuf);
}
if (TIFFWriteEncodedStrip(out, strip++, obuf, stripsize) < 0)
@@ -1261,7 +1271,7 @@ static int writeBufferToContigTiles (TIFF* out, uint8* buf, uint32 imagelength,
uint32 tl, tw;
uint32 row, col, nrow, ncol;
uint32 src_rowsize, col_offset;
- uint32 tile_rowsize = TIFFTileRowSize(out);
+ tmsize_t tile_rowsize = TIFFTileRowSize(out);
uint8* bufp = (uint8*) buf;
tsize_t tile_buffsize = 0;
tsize_t tilesize = TIFFTileSize(out);
@@ -1304,9 +1314,11 @@ static int writeBufferToContigTiles (TIFF* out, uint8* buf, uint32 imagelength,
}
src_rowsize = ((imagewidth * spp * bps) + 7U) / 8;
- tilebuf = limitMalloc(tile_buffsize);
+ /* Add 3 padding bytes for extractContigSamples32bits */
+ tilebuf = limitMalloc(tile_buffsize + NUM_BUFF_OVERSIZE_BYTES);
if (tilebuf == 0)
return 1;
+ memset(tilebuf, 0, tile_buffsize + NUM_BUFF_OVERSIZE_BYTES);
for (row = 0; row < imagelength; row += tl)
{
nrow = (row + tl > imagelength) ? imagelength - row : tl;
@@ -1352,7 +1364,8 @@ static int writeBufferToSeparateTiles (TIFF* out, uint8* buf, uint32 imagelength
uint32 imagewidth, tsample_t spp,
struct dump_opts * dump)
{
- tdata_t obuf = limitMalloc(TIFFTileSize(out));
+ /* Add 3 padding bytes for extractContigSamples32bits */
+ tdata_t obuf = limitMalloc(TIFFTileSize(out) + NUM_BUFF_OVERSIZE_BYTES);
uint32 tl, tw;
uint32 row, col, nrow, ncol;
uint32 src_rowsize, col_offset;
@@ -1362,6 +1375,7 @@ static int writeBufferToSeparateTiles (TIFF* out, uint8* buf, uint32 imagelength
if (obuf == NULL)
return 1;
+ memset(obuf, 0, TIFFTileSize(out) + NUM_BUFF_OVERSIZE_BYTES);
if( !TIFFGetField(out, TIFFTAG_TILELENGTH, &tl) ||
!TIFFGetField(out, TIFFTAG_TILEWIDTH, &tw) ||
@@ -1787,14 +1801,14 @@ void process_command_opts (int argc, char *argv[], char *mp, char *mode, uint32
*opt_offset = '\0';
/* convert option to lowercase */
- end = strlen (opt_ptr);
+ end = (unsigned int)strlen (opt_ptr);
for (i = 0; i < end; i++)
*(opt_ptr + i) = tolower((int) *(opt_ptr + i));
/* Look for dump format specification */
if (strncmp(opt_ptr, "for", 3) == 0)
{
/* convert value to lowercase */
- end = strlen (opt_offset + 1);
+ end = (unsigned int)strlen (opt_offset + 1);
for (i = 1; i <= end; i++)
*(opt_offset + i) = tolower((int) *(opt_offset + i));
/* check dump format value */
@@ -2246,6 +2260,8 @@ main(int argc, char* argv[])
size_t length;
char temp_filename[PATH_MAX + 16]; /* Extra space keeps the compiler from complaining */
+ assert(NUM_BUFF_OVERSIZE_BYTES >= 3);
+
little_endian = *((unsigned char *)&little_endian) & '1';
initImageData(&image);
@@ -3163,13 +3179,13 @@ extractContigSamples32bits (uint8 *in, uint8 *out, uint32 cols,
/* If we have a full buffer's worth, write it out */
if (ready_bits >= 32)
{
- bytebuff1 = (buff2 >> 56);
+ bytebuff1 = (uint8_t)(buff2 >> 56);
*dst++ = bytebuff1;
- bytebuff2 = (buff2 >> 48);
+ bytebuff2 = (uint8_t)(buff2 >> 48);
*dst++ = bytebuff2;
- bytebuff3 = (buff2 >> 40);
+ bytebuff3 = (uint8_t)(buff2 >> 40);
*dst++ = bytebuff3;
- bytebuff4 = (buff2 >> 32);
+ bytebuff4 = (uint8_t)(buff2 >> 32);
*dst++ = bytebuff4;
ready_bits -= 32;
@@ -3544,13 +3560,13 @@ extractContigSamplesShifted32bits (uint8 *in, uint8 *out, uint32 cols,
}
else /* If we have a full buffer's worth, write it out */
{
- bytebuff1 = (buff2 >> 56);
+ bytebuff1 = (uint8_t)(buff2 >> 56);
*dst++ = bytebuff1;
- bytebuff2 = (buff2 >> 48);
+ bytebuff2 = (uint8_t)(buff2 >> 48);
*dst++ = bytebuff2;
- bytebuff3 = (buff2 >> 40);
+ bytebuff3 = (uint8_t)(buff2 >> 40);
*dst++ = bytebuff3;
- bytebuff4 = (buff2 >> 32);
+ bytebuff4 = (uint8_t)(buff2 >> 32);
*dst++ = bytebuff4;
ready_bits -= 32;
@@ -3727,10 +3743,10 @@ extractContigSamplesToTileBuffer(uint8 *out, uint8 *in, uint32 rows, uint32 cols
static int readContigStripsIntoBuffer (TIFF* in, uint8* buf)
{
uint8* bufp = buf;
- int32 bytes_read = 0;
+ tmsize_t bytes_read = 0;
uint32 strip, nstrips = TIFFNumberOfStrips(in);
- uint32 stripsize = TIFFStripSize(in);
- uint32 rows = 0;
+ tmsize_t stripsize = TIFFStripSize(in);
+ tmsize_t rows = 0;
uint32 rps = TIFFGetFieldDefaulted(in, TIFFTAG_ROWSPERSTRIP, &rps);
tsize_t scanline_size = TIFFScanlineSize(in);
@@ -3743,12 +3759,12 @@ static int readContigStripsIntoBuffer (TIFF* in, uint8* buf)
bytes_read = TIFFReadEncodedStrip (in, strip, bufp, -1);
rows = bytes_read / scanline_size;
if ((strip < (nstrips - 1)) && (bytes_read != (int32)stripsize))
- TIFFError("", "Strip %d: read %lu bytes, strip size %lu",
+ TIFFError("", "Strip %"PRIu32": read %"PRId64" bytes, strip size %"PRIu64,
(int)strip + 1, (unsigned long) bytes_read,
(unsigned long)stripsize);
if (bytes_read < 0 && !ignore) {
- TIFFError("", "Error reading strip %lu after %lu rows",
+ TIFFError("", "Error reading strip %"PRIu32" after %"PRIu64" rows",
(unsigned long) strip, (unsigned long)rows);
return 0;
}
@@ -4213,13 +4229,13 @@ combineSeparateSamples32bits (uint8 *in[], uint8 *out, uint32 cols,
/* If we have a full buffer's worth, write it out */
if (ready_bits >= 32)
{
- bytebuff1 = (buff2 >> 56);
+ bytebuff1 = (uint8_t)(buff2 >> 56);
*dst++ = bytebuff1;
- bytebuff2 = (buff2 >> 48);
+ bytebuff2 = (uint8_t)(buff2 >> 48);
*dst++ = bytebuff2;
- bytebuff3 = (buff2 >> 40);
+ bytebuff3 = (uint8_t)(buff2 >> 40);
*dst++ = bytebuff3;
- bytebuff4 = (buff2 >> 32);
+ bytebuff4 = (uint8_t)(buff2 >> 32);
*dst++ = bytebuff4;
ready_bits -= 32;
@@ -4262,10 +4278,10 @@ combineSeparateSamples32bits (uint8 *in[], uint8 *out, uint32 cols,
"Row %3d, Col %3d, Src byte offset %3d bit offset %2d Dst offset %3d",
row + 1, col + 1, src_byte, src_bit, dst - out);
- dump_long (dumpfile, format, "Match bits ", matchbits);
+ dump_wide (dumpfile, format, "Match bits ", matchbits);
dump_data (dumpfile, format, "Src bits ", src, 4);
- dump_long (dumpfile, format, "Buff1 bits ", buff1);
- dump_long (dumpfile, format, "Buff2 bits ", buff2);
+ dump_wide (dumpfile, format, "Buff1 bits ", buff1);
+ dump_wide (dumpfile, format, "Buff2 bits ", buff2);
dump_byte (dumpfile, format, "Write bits1", bytebuff1);
dump_byte (dumpfile, format, "Write bits2", bytebuff2);
dump_info (dumpfile, format, "", "Ready bits: %2d", ready_bits);
@@ -4738,13 +4754,13 @@ combineSeparateTileSamples32bits (uint8 *in[], uint8 *out, uint32 cols,
/* If we have a full buffer's worth, write it out */
if (ready_bits >= 32)
{
- bytebuff1 = (buff2 >> 56);
+ bytebuff1 = (uint8_t)(buff2 >> 56);
*dst++ = bytebuff1;
- bytebuff2 = (buff2 >> 48);
+ bytebuff2 = (uint8_t)(buff2 >> 48);
*dst++ = bytebuff2;
- bytebuff3 = (buff2 >> 40);
+ bytebuff3 = (uint8_t)(buff2 >> 40);
*dst++ = bytebuff3;
- bytebuff4 = (buff2 >> 32);
+ bytebuff4 = (uint8_t)(buff2 >> 32);
*dst++ = bytebuff4;
ready_bits -= 32;
@@ -4787,10 +4803,10 @@ combineSeparateTileSamples32bits (uint8 *in[], uint8 *out, uint32 cols,
"Row %3d, Col %3d, Src byte offset %3d bit offset %2d Dst offset %3d",
row + 1, col + 1, src_byte, src_bit, dst - out);
- dump_long (dumpfile, format, "Match bits ", matchbits);
+ dump_wide (dumpfile, format, "Match bits ", matchbits);
dump_data (dumpfile, format, "Src bits ", src, 4);
- dump_long (dumpfile, format, "Buff1 bits ", buff1);
- dump_long (dumpfile, format, "Buff2 bits ", buff2);
+ dump_wide (dumpfile, format, "Buff1 bits ", buff1);
+ dump_wide (dumpfile, format, "Buff2 bits ", buff2);
dump_byte (dumpfile, format, "Write bits1", bytebuff1);
dump_byte (dumpfile, format, "Write bits2", bytebuff2);
dump_info (dumpfile, format, "", "Ready bits: %2d", ready_bits);
@@ -4813,7 +4829,7 @@ static int readSeparateStripsIntoBuffer (TIFF *in, uint8 *obuf, uint32 length,
{
int i, bytes_per_sample, bytes_per_pixel, shift_width, result = 1;
uint32 j;
- int32 bytes_read = 0;
+ tmsize_t bytes_read = 0;
uint16 bps = 0, planar;
uint32 nstrips;
uint32 strips_per_sample;
@@ -4879,7 +4895,7 @@ static int readSeparateStripsIntoBuffer (TIFF *in, uint8 *obuf, uint32 length,
for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++)
{
srcbuffs[s] = NULL;
- buff = limitMalloc(stripsize + 3);
+ buff = limitMalloc(stripsize + NUM_BUFF_OVERSIZE_BYTES);
if (!buff)
{
TIFFError ("readSeparateStripsIntoBuffer",
@@ -4902,7 +4918,7 @@ static int readSeparateStripsIntoBuffer (TIFF *in, uint8 *obuf, uint32 length,
buff = srcbuffs[s];
strip = (s * strips_per_sample) + j;
bytes_read = TIFFReadEncodedStrip (in, strip, buff, stripsize);
- rows_this_strip = bytes_read / src_rowsize;
+ rows_this_strip = (uint32_t)(bytes_read / src_rowsize);
if (bytes_read < 0 && !ignore)
{
TIFFError(TIFFFileName(in),
@@ -5909,13 +5925,14 @@ loadImage(TIFF* in, struct image_data *image, struct dump_opts *dump, unsigned c
uint16 input_compression = 0, input_photometric = 0;
uint16 subsampling_horiz, subsampling_vert;
uint32 width = 0, length = 0;
- uint32 stsize = 0, tlsize = 0, buffsize = 0, scanlinesize = 0;
+ tmsize_t stsize = 0, tlsize = 0, buffsize = 0;
+ tmsize_t scanlinesize = 0;
uint32 tw = 0, tl = 0; /* Tile width and length */
- uint32 tile_rowsize = 0;
+ tmsize_t tile_rowsize = 0;
unsigned char *read_buff = NULL;
unsigned char *new_buff = NULL;
int readunit = 0;
- static uint32 prev_readsize = 0;
+ static tmsize_t prev_readsize = 0;
TIFFGetFieldDefaulted(in, TIFFTAG_BITSPERSAMPLE, &bps);
TIFFGetFieldDefaulted(in, TIFFTAG_SAMPLESPERPIXEL, &spp);
@@ -6217,7 +6234,7 @@ loadImage(TIFF* in, struct image_data *image, struct dump_opts *dump, unsigned c
TIFFError("loadImage", "Unable to allocate/reallocate read buffer");
return (-1);
}
- read_buff = (unsigned char *)limitMalloc(buffsize+3);
+ read_buff = (unsigned char *)limitMalloc(buffsize + NUM_BUFF_OVERSIZE_BYTES);
}
else
{
@@ -6228,11 +6245,11 @@ loadImage(TIFF* in, struct image_data *image, struct dump_opts *dump, unsigned c
TIFFError("loadImage", "Unable to allocate/reallocate read buffer");
return (-1);
}
- new_buff = _TIFFrealloc(read_buff, buffsize+3);
+ new_buff = _TIFFrealloc(read_buff, buffsize + NUM_BUFF_OVERSIZE_BYTES);
if (!new_buff)
{
free (read_buff);
- read_buff = (unsigned char *)limitMalloc(buffsize+3);
+ read_buff = (unsigned char *)limitMalloc(buffsize + NUM_BUFF_OVERSIZE_BYTES);
}
else
read_buff = new_buff;
@@ -6305,8 +6322,13 @@ loadImage(TIFF* in, struct image_data *image, struct dump_opts *dump, unsigned c
dump_info (dump->infile, dump->format, "",
"Bits per sample %d, Samples per pixel %d", bps, spp);
+ if (scanlinesize > 0x0ffffffffULL) {
+ dump_info(dump->infile, dump->format, "loadImage",
+ "Attention: scanlinesize %"PRIu64" is larger than UINT32_MAX.\nFollowing dump might be wrong.",
+ scanlinesize);
+ }
for (i = 0; i < length; i++)
- dump_buffer(dump->infile, dump->format, 1, scanlinesize,
+ dump_buffer(dump->infile, dump->format, 1, (uint32_t)scanlinesize,
i, read_buff + (i * scanlinesize));
}
return (0);
@@ -7326,13 +7348,13 @@ writeSingleSection(TIFF *in, TIFF *out, struct image_data *image,
if (TIFFGetField(in, TIFFTAG_NUMBEROFINKS, &ninks)) {
TIFFSetField(out, TIFFTAG_NUMBEROFINKS, ninks);
if (TIFFGetField(in, TIFFTAG_INKNAMES, &inknames)) {
- int inknameslen = strlen(inknames) + 1;
+ int inknameslen = (int)strlen(inknames) + 1;
const char* cp = inknames;
while (ninks > 1) {
cp = strchr(cp, '\0');
if (cp) {
cp++;
- inknameslen += (strlen(cp) + 1);
+ inknameslen += ((int)strlen(cp) + 1);
}
ninks--;
}
@@ -7395,23 +7417,23 @@ createImageSection(uint32 sectsize, unsigned char **sect_buff_ptr)
if (!sect_buff)
{
- sect_buff = (unsigned char *)limitMalloc(sectsize);
+ sect_buff = (unsigned char *)limitMalloc(sectsize + NUM_BUFF_OVERSIZE_BYTES);
if (!sect_buff)
{
TIFFError("createImageSection", "Unable to allocate/reallocate section buffer");
return (-1);
}
- _TIFFmemset(sect_buff, 0, sectsize);
+ _TIFFmemset(sect_buff, 0, sectsize + NUM_BUFF_OVERSIZE_BYTES);
}
else
{
if (prev_sectsize < sectsize)
{
- new_buff = _TIFFrealloc(sect_buff, sectsize);
+ new_buff = _TIFFrealloc(sect_buff, sectsize + NUM_BUFF_OVERSIZE_BYTES);
if (!new_buff)
{
_TIFFfree (sect_buff);
- sect_buff = (unsigned char *)limitMalloc(sectsize);
+ sect_buff = (unsigned char *)limitMalloc(sectsize + NUM_BUFF_OVERSIZE_BYTES);
}
else
sect_buff = new_buff;
@@ -7421,7 +7443,7 @@ createImageSection(uint32 sectsize, unsigned char **sect_buff_ptr)
TIFFError("createImageSection", "Unable to allocate/reallocate section buffer");
return (-1);
}
- _TIFFmemset(sect_buff, 0, sectsize);
+ _TIFFmemset(sect_buff, 0, sectsize + NUM_BUFF_OVERSIZE_BYTES);
}
}
@@ -7452,17 +7474,17 @@ processCropSelections(struct image_data *image, struct crop_mask *crop,
cropsize = crop->bufftotal;
crop_buff = seg_buffs[0].buffer;
if (!crop_buff)
- crop_buff = (unsigned char *)limitMalloc(cropsize);
+ crop_buff = (unsigned char *)limitMalloc(cropsize + NUM_BUFF_OVERSIZE_BYTES);
else
{
prev_cropsize = seg_buffs[0].size;
if (prev_cropsize < cropsize)
{
- next_buff = _TIFFrealloc(crop_buff, cropsize);
+ next_buff = _TIFFrealloc(crop_buff, cropsize + NUM_BUFF_OVERSIZE_BYTES);
if (! next_buff)
{
_TIFFfree (crop_buff);
- crop_buff = (unsigned char *)limitMalloc(cropsize);
+ crop_buff = (unsigned char *)limitMalloc(cropsize + NUM_BUFF_OVERSIZE_BYTES);
}
else
crop_buff = next_buff;
@@ -7475,7 +7497,7 @@ processCropSelections(struct image_data *image, struct crop_mask *crop,
return (-1);
}
- _TIFFmemset(crop_buff, 0, cropsize);
+ _TIFFmemset(crop_buff, 0, cropsize + NUM_BUFF_OVERSIZE_BYTES);
seg_buffs[0].buffer = crop_buff;
seg_buffs[0].size = cropsize;
@@ -7554,17 +7576,17 @@ processCropSelections(struct image_data *image, struct crop_mask *crop,
cropsize = crop->bufftotal;
crop_buff = seg_buffs[i].buffer;
if (!crop_buff)
- crop_buff = (unsigned char *)limitMalloc(cropsize);
+ crop_buff = (unsigned char *)limitMalloc(cropsize + NUM_BUFF_OVERSIZE_BYTES);
else
{
prev_cropsize = seg_buffs[0].size;
if (prev_cropsize < cropsize)
{
- next_buff = _TIFFrealloc(crop_buff, cropsize);
+ next_buff = _TIFFrealloc(crop_buff, cropsize + NUM_BUFF_OVERSIZE_BYTES);
if (! next_buff)
{
_TIFFfree (crop_buff);
- crop_buff = (unsigned char *)limitMalloc(cropsize);
+ crop_buff = (unsigned char *)limitMalloc(cropsize + NUM_BUFF_OVERSIZE_BYTES);
}
else
crop_buff = next_buff;
@@ -7577,7 +7599,7 @@ processCropSelections(struct image_data *image, struct crop_mask *crop,
return (-1);
}
- _TIFFmemset(crop_buff, 0, cropsize);
+ _TIFFmemset(crop_buff, 0, cropsize + NUM_BUFF_OVERSIZE_BYTES);
seg_buffs[i].buffer = crop_buff;
seg_buffs[i].size = cropsize;
@@ -7690,24 +7712,24 @@ createCroppedImage(struct image_data *image, struct crop_mask *crop,
crop_buff = *crop_buff_ptr;
if (!crop_buff)
{
- crop_buff = (unsigned char *)limitMalloc(cropsize);
+ crop_buff = (unsigned char *)limitMalloc(cropsize + NUM_BUFF_OVERSIZE_BYTES);
if (!crop_buff)
{
TIFFError("createCroppedImage", "Unable to allocate/reallocate crop buffer");
return (-1);
}
- _TIFFmemset(crop_buff, 0, cropsize);
+ _TIFFmemset(crop_buff, 0, cropsize + NUM_BUFF_OVERSIZE_BYTES);
prev_cropsize = cropsize;
}
else
{
if (prev_cropsize < cropsize)
{
- new_buff = _TIFFrealloc(crop_buff, cropsize);
+ new_buff = _TIFFrealloc(crop_buff, cropsize + NUM_BUFF_OVERSIZE_BYTES);
if (!new_buff)
{
free (crop_buff);
- crop_buff = (unsigned char *)limitMalloc(cropsize);
+ crop_buff = (unsigned char *)limitMalloc(cropsize + NUM_BUFF_OVERSIZE_BYTES);
}
else
crop_buff = new_buff;
@@ -7716,7 +7738,7 @@ createCroppedImage(struct image_data *image, struct crop_mask *crop,
TIFFError("createCroppedImage", "Unable to allocate/reallocate crop buffer");
return (-1);
}
- _TIFFmemset(crop_buff, 0, cropsize);
+ _TIFFmemset(crop_buff, 0, cropsize + NUM_BUFF_OVERSIZE_BYTES);
}
}
@@ -8014,13 +8036,13 @@ writeCroppedImage(TIFF *in, TIFF *out, struct image_data *image,
if (TIFFGetField(in, TIFFTAG_NUMBEROFINKS, &ninks)) {
TIFFSetField(out, TIFFTAG_NUMBEROFINKS, ninks);
if (TIFFGetField(in, TIFFTAG_INKNAMES, &inknames)) {
- int inknameslen = strlen(inknames) + 1;
+ int inknameslen = (int)strlen(inknames) + 1;
const char* cp = inknames;
while (ninks > 1) {
cp = strchr(cp, '\0');
if (cp) {
cp++;
- inknameslen += (strlen(cp) + 1);
+ inknameslen += ((int)strlen(cp) + 1);
}
ninks--;
}
@@ -8405,13 +8427,13 @@ rotateContigSamples32bits(uint16 rotation, uint16 spp, uint16 bps, uint32 width,
}
else /* If we have a full buffer's worth, write it out */
{
- bytebuff1 = (buff2 >> 56);
+ bytebuff1 = (uint8_t)(buff2 >> 56);
*dst++ = bytebuff1;
- bytebuff2 = (buff2 >> 48);
+ bytebuff2 = (uint8_t)(buff2 >> 48);
*dst++ = bytebuff2;
- bytebuff3 = (buff2 >> 40);
+ bytebuff3 = (uint8_t)(buff2 >> 40);
*dst++ = bytebuff3;
- bytebuff4 = (buff2 >> 32);
+ bytebuff4 = (uint8_t)(buff2 >> 32);
*dst++ = bytebuff4;
ready_bits -= 32;
@@ -8480,12 +8502,13 @@ rotateImage(uint16 rotation, struct image_data *image, uint32 *img_width,
return (-1);
}
- if (!(rbuff = (unsigned char *)limitMalloc(buffsize)))
+ /* Add 3 padding bytes for extractContigSamplesShifted32bits */
+ if (!(rbuff = (unsigned char *)limitMalloc(buffsize + NUM_BUFF_OVERSIZE_BYTES)))
{
- TIFFError("rotateImage", "Unable to allocate rotation buffer of %1u bytes", buffsize);
+ TIFFError("rotateImage", "Unable to allocate rotation buffer of %1u bytes", buffsize + NUM_BUFF_OVERSIZE_BYTES);
return (-1);
}
- _TIFFmemset(rbuff, '\0', buffsize);
+ _TIFFmemset(rbuff, '\0', buffsize + NUM_BUFF_OVERSIZE_BYTES);
ibuff = *ibuff_ptr;
switch (rotation)
@@ -9013,13 +9036,13 @@ reverseSamples32bits (uint16 spp, uint16 bps, uint32 width,
}
else /* If we have a full buffer's worth, write it out */
{
- bytebuff1 = (buff2 >> 56);
+ bytebuff1 = (uint8_t)(buff2 >> 56);
*dst++ = bytebuff1;
- bytebuff2 = (buff2 >> 48);
+ bytebuff2 = (uint8_t)(buff2 >> 48);
*dst++ = bytebuff2;
- bytebuff3 = (buff2 >> 40);
+ bytebuff3 = (uint8_t)(buff2 >> 40);
*dst++ = bytebuff3;
- bytebuff4 = (buff2 >> 32);
+ bytebuff4 = (uint8_t)(buff2 >> 32);
*dst++ = bytebuff4;
ready_bits -= 32;
@@ -9110,12 +9133,13 @@ mirrorImage(uint16 spp, uint16 bps, uint16 mirror, uint32 width, uint32 length,
{
case MIRROR_BOTH:
case MIRROR_VERT:
- line_buff = (unsigned char *)limitMalloc(rowsize);
+ line_buff = (unsigned char *)limitMalloc(rowsize + NUM_BUFF_OVERSIZE_BYTES);
if (line_buff == NULL)
{
- TIFFError ("mirrorImage", "Unable to allocate mirror line buffer of %1u bytes", rowsize);
+ TIFFError ("mirrorImage", "Unable to allocate mirror line buffer of %1u bytes", rowsize + NUM_BUFF_OVERSIZE_BYTES);
return (-1);
}
+ _TIFFmemset(line_buff, '\0', rowsize + NUM_BUFF_OVERSIZE_BYTES);
dst = ibuff + (rowsize * (length - 1));
for (row = 0; row < length / 2; row++)
@@ -9147,11 +9171,12 @@ mirrorImage(uint16 spp, uint16 bps, uint16 mirror, uint32 width, uint32 length,
}
else
{ /* non 8 bit per sample data */
- if (!(line_buff = (unsigned char *)limitMalloc(rowsize + 1)))
+ if (!(line_buff = (unsigned char *)limitMalloc(rowsize + NUM_BUFF_OVERSIZE_BYTES)))
{
TIFFError("mirrorImage", "Unable to allocate mirror line buffer");
return (-1);
}
+ _TIFFmemset(line_buff, '\0', rowsize + NUM_BUFF_OVERSIZE_BYTES);
bytes_per_sample = (bps + 7) / 8;
bytes_per_pixel = ((bps * spp) + 7) / 8;
if (bytes_per_pixel < (bytes_per_sample + 1))
@@ -9163,7 +9188,7 @@ mirrorImage(uint16 spp, uint16 bps, uint16 mirror, uint32 width, uint32 length,
{
row_offset = row * rowsize;
src = ibuff + row_offset;
- _TIFFmemset (line_buff, '\0', rowsize);
+ _TIFFmemset (line_buff, '\0', rowsize + NUM_BUFF_OVERSIZE_BYTES);
switch (shift_width)
{
case 1: if (reverseSamples16bits(spp, bps, width, src, line_buff))