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Author SHA1 Message Date
John Bowler
7f576964d8 pngunknown.c: handle unknown IDAT 
This is the test backported from 1.7 to ensure that when treating IDATs as
unknown the test does not fail if there are more than one IDAT chunks in the
file.

Signed-off-by: John Bowler <jbowler@acm.org>
 2016-01-18 19:19:14 -08:00
Glenn Randers-Pehrson
0873ae8242 Merge branch 'libpng16-simple-memory-II' of git://github.com/jbowler/libpng-1 into libpng16 2016-01-18 13:01:19 -06:00
Glenn Randers-Pehrson
571abc9a67 [libpng16] Update CHANGES and ANNOUNCE, fix typos in png.h comments 2016-01-18 12:55:51 -06:00
John Bowler
c68f20cecc Merge branch 'libpng16' into libpng16-simple-memory-II 2016-01-18 10:50:46 -08:00
Glenn Randers-Pehrson
94f4e972b5 Merge branch 'libpng16-simple-memory-II' of git://github.com/jbowler/libpng-1 into libpng16 2016-01-18 12:43:36 -06:00
John Bowler
175a126a1a Simplified API: write-to-memory, overflow handling 
This implements an API and provides a number of assist macros to allow an
application which uses the simplified API write to bypass stdio and write
directly to memory.

It also includes some warnings (png.h) and some check code to detect *possible*
overflow in the ROW_STRIDE and simplified image SIZE macros.  This disallows
image width/height/format that *might* overflow.  A quiet API change that limits
in-memory image size (uncompressed) to less that 4GByte and image row size
(stride) to less than 2GByte.

Signed-off-by: John Bowler <jbowler@acm.org>
 2016-01-18 09:53:38 -08:00
Glenn Randers-Pehrson
95d2726ecc [libpng16] Update change dates in pngvalid.c and pngfix.c 2016-01-18 09:24:23 -06:00
Glenn Randers-Pehrson
b8dbd78de8 [libpng16] Updated CHANGES, ANNOUNCE, and copyright notice in pngunknown.c 2016-01-18 09:09:33 -06:00
John Bowler
777dbf46dc pngunknown: fix NO_STDIO build 
pngunknown.c calls png_init_io (always), skip the test if there is no stdio.h
support.

Signed-off-by: John Bowler <jbowler@acm.org>
 2016-01-18 05:08:27 -08:00
Glenn Randers-Pehrson
e8558d2160 [libpng16] Changed PNG_USE_MKSTEMP to __COVERITY__ to select alternate 
"tmpfile()" implementation in contrib/libtests/pngstest.c
 2016-01-17 16:08:39 -06:00
Glenn Randers-Pehrson
5031c77d85 [libpng16] Bump version to 1.6.22beta01 2016-01-16 08:00:09 -06:00
Glenn Randers-Pehrson
fc0786a442 [libpng16] Imported from libpng-1.6.21.tar 2016-01-15 13:51:06 -06:00
Glenn Randers-Pehrson
780079e771 [libpng16] Worked around a false-positive Coverity issue in pngvalid.c. 2016-01-13 09:50:41 -06:00
Glenn Randers-Pehrson
253326c52d [libpng16] Deleted a left-over cut-and-paste line in png_get_copyright(). 2016-01-08 06:30:15 -06:00
Glenn Randers-Pehrson
81dfc2163b [libpng16] Imported from libpng-1.6.21rc02.tar 2016-01-07 09:31:16 -06:00
Glenn Randers-Pehrson
9b54f0037a [libpng16] Update CHANGES and ANNOUNCE 2016-01-06 15:59:49 -06:00
John Bowler
b416dc5fc8 Mark 'limit' UNUSED in transform_range_check 
Only affects release builds

Signed-off-by: John Bowler <jbowler@acm.org>
 2016-01-06 12:58:01 -08:00
Glenn Randers-Pehrson
ecc022ee5f [libpng16] Bump version to libpng-1.6.21rc02.tar 2016-01-06 13:26:32 -06:00
Glenn Randers-Pehrson
092b8d7bf3 [libpng16] Imported from libpng-1.6.21rc01.tar 2016-01-04 08:24:14 -06:00
Glenn Randers-Pehrson
912f030532 [libpng16] Removed redundant "option WRITE" from scripts/pnglibconf.dfa 2016-01-02 13:43:52 -06:00
Glenn Randers-Pehrson
66db757dd4 [libpng16] Happy 2016! Updated copyright year 2016-01-02 13:40:27 -06:00
Glenn Randers-Pehrson
9616bf6882 [libpng16] In projects/vstudio, combined readme.txt and WARNING into README.txt 2015-12-29 08:24:38 -06:00
Glenn Randers-Pehrson
dea53bb460 [libpng16] Bump version to 1.6.21beta04 2015-12-19 10:48:20 -06:00
Glenn Randers-Pehrson
35a5a6c16d [libpng16] Imported from libpng-1.6.21beta03.tar 2015-12-19 10:48:12 -06:00
Glenn Randers-Pehrson
42b438b7dc [libpng16] Update CHANGES and ANNOUNCE 2015-12-17 20:51:13 -06:00
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
Glenn Randers-Pehrson
4aa590288b [libpng16] Updated CHANGES and ANNOUNCE 2015-12-15 12:55:56 -06:00
Glenn Randers-Pehrson
315b39c73a Merge branch 'libpng16' of git://github.com/jbowler/libpng-1 into libpng16 2015-12-15 12:28:33 -06:00
John Bowler
2225ca0a54 pngvalid with 'limit' checks disabled in RC+ 
This widens the 'limit' check on the internally calculated error limits in the
'DIGITIZE' case (the code used prior to 1.7 for rgb_to_gray error checks) and it
changes the check to only operate in non-release builds (base build type not RC
or RELEASE.)

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-12-15 08:28:47 -08:00
Glenn Randers-Pehrson
ad29c03711 [libpng16] Bump version to 1.6.21beta03 2015-12-13 23:24:36 -06:00
Glenn Randers-Pehrson
0a4967ce0c [libpng16] Imported from libpng-1.6.21beta02.tar 2015-12-13 23:23:41 -06:00
Glenn Randers-Pehrson
b3d3a5ed6a [libpng16] Imported from libpng-1.6.21beta02.tar 2015-12-13 22:44:31 -06:00
Glenn Randers-Pehrson
4d8de33979 [libpng16] Update copyright uears in source files. 2015-12-13 22:41:17 -06:00
Glenn Randers-Pehrson
32629bb522 [libpng16] Update CHANGES and ANNOUNCE 2015-12-13 20:35:15 -06:00
Glenn Randers-Pehrson
0bc972fbc2 [libpng16] Fix typo in "last-changed" date. 2015-12-13 20:19:36 -06:00
John Bowler
6cc84b3c44 Fix rgb_to_gray graylo==0 errors, build issues 
Fixes to pngvalid for various reduced build configurations (eliminate unused
statics) and a fix for the case in rgb_to_gray when the digitize option reduces
graylo to 0, producing a large error.

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-12-13 18:00:41 -08:00
John Bowler
c5e81c51d9 Remove LE/BE dependencies in pngvalid 
This 'fixes' the current problem in the BE tests by not testing it, making the
BE code the same as the LE version.

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-12-13 17:15:02 -08:00
John Bowler
cbe5d34f6f Backport pngvalid.c from libpng17 
One fix is required for libpng16 LE, more for libpng16 BE

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-12-13 17:07:36 -08:00
Glenn Randers-Pehrson
975cbbb029 [libpng16] Moved png_check_keyword() from pngwutil.c to pngset.c 2015-12-13 15:04:18 -06:00
Glenn Randers-Pehrson
f3da771890 [libpng16] Bump version to 1.6.21beta02 2015-12-11 19:21:01 -06:00
Glenn Randers-Pehrson
2edfd187f2 [libpng16] Imported from libpng-1.6.21beta01.tar 2015-12-11 16:39:54 -06:00
John Bowler
2c8a90ef52 [libpng16] Changed "( ... )" to " ... " in tests/pngstest (John Bowler) 2015-12-09 13:16:28 -06:00
Glenn Randers-Pehrson
0de0101fdd [libpng16] Bump version to 1.6.21beta01 2015-12-08 22:19:15 -06:00
Glenn Randers-Pehrson
1dbfb07c08 [libpng16] Fixed a syntax error in tests/pngstest that some shells other than 
bash could not parse (Bug report by Nelson Beebe).
 2015-12-08 22:18:01 -06:00
Glenn Randers-Pehrson
5b6a6f914b [libpng16] Imported from libpng-1.6.20.tar 2015-12-02 22:30:37 -06:00
Glenn Randers-Pehrson
4fa5f90346 [libpng16] Imported from libpng-1.6.20rc02.tar 2015-11-29 16:46:56 -06:00
Glenn Randers-Pehrson
ebeca5bd9b [libng16] Update CHANGES 2015-11-29 16:46:04 -06:00
Glenn Randers-Pehrson
9dcf45c65c Merge branch 'libpng16' of git://github.com/jbowler/libpng-1 into libpng16 2015-11-29 16:20:54 -06:00
Glenn Randers-Pehrson
030e12ec39 [libpng16] Bump version to libpng-1.6.20rc02.tar 2015-11-29 16:10:46 -06:00
John Bowler
12bebfe0f9 Merge branch 'libpng16' of ../../libpng into libpng16 2015-11-28 00:08:20 -08:00