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[libpng17] Quieted Coverity issues in pngfix.c, png-fix-itxt.c, pngvalid.c,

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pngstest.c, and pngimage.c. Most seem harmless, but png-fix-itxt
would only work with iTXt chunks with length 255 or less.
This commit is contained in:
Glenn Randers-Pehrson
2015-06-03 16:21:57 -05:00
parent f32c657fc7
commit a671f8baea
7 changed files with 43 additions and 32 deletions
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12
contrib/libtests/pngstest.c
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@@ -1,9 +1,9 @@
/*-
* pngstest.c
*
* Copyright (c) 2013-2014 John Cunningham Bowler
* Copyright (c) 2013-2015 John Cunningham Bowler
*
* Last changed in libpng 1.6.16 [December 22, 2014]
* Last changed in libpng 1.6.18 [(PENDING RELEASE)]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
@@ -615,7 +615,7 @@ freeimage(Image *image)
if (image->tmpfile_name[0] != 0 && (image->opts & KEEP_TMPFILES) == 0)
{
remove(image->tmpfile_name);
(void)remove(image->tmpfile_name);
image->tmpfile_name[0] = 0;
}
}
@@ -2828,7 +2828,7 @@ compare_two_images(Image *a, Image *b, int via_linear,
else if (y >= b->image.colormap_entries)
{
if ((a->opts & ACCUMULATE) == 0)
if ((b->opts & ACCUMULATE) == 0)
{
char pindex[9];
sprintf(pindex, "%lu[%lu]", (unsigned long)y,
@@ -3175,7 +3175,9 @@ read_one_file(Image *image)
if (cb > 0)
{
#ifndef __COVERITY__
if ((unsigned long int)cb <= (size_t)~(size_t)0)
#endif
{
png_bytep b = voidcast(png_bytep, malloc((size_t)cb));
@@ -3588,7 +3590,7 @@ main(int argc, char **argv)
}
/* Safe: checked above */
strcpy(tmpf, argv[c]);
strncpy(tmpf, argv[c], sizeof (tmpf)-1);
}
else