John Bowler 18765d0032 Fix undefined behavior in pngvalid.c ...

Undefined because (png_byte) << shift is undefined if it changes the signed bit
(because png_byte is promoted to int).  The libpng exported functions
png_get_uint_32 and png_get_uint_16 handle this.

Bug reported by David Drysdale as a result of reports from UBSAN in clang 3.8.

This changes pngvalid to use BE random numbers; this used to produce errors but
these should not be fixed as a result of the previous changes.

Signed-off-by: John Bowler <jbowler@acm.org>

2015-12-17 12:53:08 -08:00

..

fakepng.c

[libpng16] Fix typo (extra "*/") in contrib/libtests/fakepng.c

2015-09-15 17:07:34 -05:00

gentests.sh

[libpng16] Bump version to 1.6.1beta05

2013-03-02 15:03:15 -06:00

makepng.c

[libpng16] Imported from libpng-1.6.20rc01.tar

2015-11-26 07:04:24 -06:00

pngimage.c

[libpng16] Bump version to 1.6.21beta01

2015-12-08 22:19:15 -06:00

pngstest-errors.h

pngstest 1.6 error limit and warning revisions

2015-09-25 13:40:18 -07:00

pngstest.c

[libpng16] Imported from libpng-1.6.20rc01.tar

2015-11-26 07:04:24 -06:00

pngunknown.c

[libpng16] tests backported from libpng 1.7

2015-09-15 15:38:52 -07:00

pngvalid.c

Fix undefined behavior in pngvalid.c

2015-12-17 12:53:08 -08:00

readpng.c

[libpng16] Update CHANGES, ANNOUNCE, minor editing of contrib/*/*.c

2015-11-25 15:55:01 -06:00

tarith.c

[libpng16] Change "n bit" to "n-bit" in comments.

2015-08-13 20:57:18 -05:00

timepng.c

[libpng16] Reverted use png_get_libpng_ver(NULL) instead of PNG_LIBPNG_VER_STRING

2014-11-06 06:39:56 -06:00