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[libpng16] 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.

Fixed cexcept.h in which GCC 5 reported that one of the auto
variables in the Try macro needs to be volatile to prevent value
being lost over the setjmp, and fixed g++ build breaks (John Bowler).
This commit is contained in:
Glenn Randers-Pehrson
2015-06-03 22:52:33 -05:00
parent a671f8baea
commit 77476d3c37
7 changed files with 28 additions and 21 deletions
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8
contrib/tools/png-fix-itxt.c
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@@ -57,10 +57,10 @@ for (;;)
{
/* Read the length */
unsigned long length; /* must be 32 bits! */
c=GETBREAK; buf[0] = c; length = (c % 0xff); length <<= 8;
c=GETBREAK; buf[1] = c; length += (c % 0xff); length <<= 8;
c=GETBREAK; buf[2] = c; length += (c % 0xff); length <<= 8;
c=GETBREAK; buf[3] = c; length += (c % 0xff);
c=GETBREAK; buf[0] = c; length = (c & 0xff); length <<= 8;
c=GETBREAK; buf[1] = c; length += (c & 0xff); length <<= 8;
c=GETBREAK; buf[2] = c; length += (c & 0xff); length <<= 8;
c=GETBREAK; buf[3] = c; length += (c & 0xff);
/* Read the chunkname */
c=GETBREAK; buf[4] = c;