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498 Commits

Author SHA1 Message Date
Glenn Randers-Pehrson
c357fb70b5 [lbipng15] Fixed the recently reported 1's complement security issue by 
replacing the value that is illegal in the PNG spec, in both signed and
  unsigned values, with 0. Illegal unsigned values (anything greater than or
  equal to  0x80000000) can still pass through, but since these are not illegal
  in ANSI-C (unlike 0x80000000 in the signed case) the checking that
  occurs later can catch them (John Bowler).

Safely convert num_bytes to a png_byte in png_set_sig_bytes() (Robert
  Seacord).
 2015-08-19 12:52:39 -05:00
Glenn Randers-Pehrson
4b1b9ce028 [libpng15] Imported from libpng-1.5.22.tar 2015-03-26 08:11:00 -05:00
Glenn Randers-Pehrson
3cd4a410a5 [libpng15] Imported from libpng-1.5.22beta01.tar 2015-01-28 19:34:32 -06:00
Glenn Randers-Pehrson
67faef917b [libpng15] Imported from libpng-1.5.21.tar 2014-12-21 21:52:46 -06:00
John Bowler
7a6bbfd649 [libpng15] Fixed an overflow in png_combine_row with very wide interlaced 
images.
 2014-12-21 16:40:33 -06:00
Glenn Randers-Pehrson
90238dfe7a [libpng15] Imported from libpng-1.5.21rc02.tar 2014-12-21 14:08:01 -06:00
Glenn Randers-Pehrson
fb31308aea [libpng15] Imported from libpng-1.5.21rc01.tar 2014-12-21 09:31:27 -06:00
Glenn Randers-Pehrson
6c9ef75c6b [libpng15] Update "last changed" dates. 2014-08-21 09:50:28 -05:00
Glenn Randers-Pehrson
e99366837d [libpng15] Bump version to 1.5.20beta01 2014-08-21 09:15:51 -05:00
Glenn Randers-Pehrson
e73cc88b21 [libpng15] Imported from libpng-1.5.19.tar 2014-08-21 05:57:34 -05:00
Glenn Randers-Pehrson
af759fb3fe [libpng15] Fixed a typo in pngrutil.c, introduced in libpng-1.5.6, that 
interferes with "blocky" expansion of sub-8-bit interlaced PNG files.
 2014-04-06 08:48:27 -05:00
Glenn Randers-Pehrson
d92bbef414 [libpng15] Use "if (value != 0)" instead of "if (value)" consistently. 2014-03-08 16:23:06 -06:00
Glenn Randers-Pehrson
a2fbb6d41b [libpng15] Imported from libpng-1.5.19beta01.tar 2014-02-28 10:49:21 -06:00
Glenn Randers-Pehrson
3adf7f7bc8 [libpng15] Bump version to 1.5.19beta01 2014-02-06 10:42:45 -06:00
Glenn Randers-Pehrson
4449a29e1e [libpng15] Imported from libpng-1.5.18.tar 2014-02-05 22:27:21 -06:00
Glenn Randers-Pehrson
77adefeda6 [libpng15] Updated copyright year in recently-changed files. 2013-12-31 21:06:14 -06:00
John Bowler
71fcb39efc [libpng15] Merged pngvalid and pngtest from libpng-1.5; made compressed chunks 
after IDAT work with the progressive read code (this is a minor and
somewhat ugly fix-up; the proper fix is in 1.6).
 2013-12-29 10:44:25 -06:00
Glenn Randers-Pehrson
3309da76cd [libpng15] Imported from libpng-1.5.18beta01.tar 2013-08-21 17:54:39 -05:00
Glenn Randers-Pehrson
fe7b94da93 [libpng15] Delay calling png_init_filter_functions() until a row with nonzero 
filter is found.
 2013-08-20 21:23:50 -05:00
Glenn Randers-Pehrson
b3b9360373 [libpng15] Ported recent "/*SAFE*/" comments from libpng-1.6.3 2013-07-15 10:35:09 -05:00
Glenn Randers-Pehrson
45b47c1a1c [libpng15] Imported from libpng-1.5.16.tar 2013-05-23 06:50:27 -05:00
Glenn Randers-Pehrson
333ca5496b [libpng15] Imported from libpng-1.5.16rc01.tar 2013-05-15 22:38:09 -05:00
Glenn Randers-Pehrson
bc92887b2d [libpng15] Imported from libpng-1.5.16beta06.tar 2013-05-12 18:34:58 -05:00
Glenn Randers-Pehrson
ae8174d9a3 [libpng15] Imported from libpng-1.5.15beta06.tar 2013-05-12 12:12:08 -05:00
Glenn Randers-Pehrson
2defb206e7 [libpng15] Reverted patches committed to the wrong branch. 2013-05-07 14:29:36 -05:00
Glenn Randers-Pehrson
ec89c54e42 [libpng16] Choose to use windowBits==15 or the zlib header setting via the 
benign-errors setting.  If benign errors are allowed, then ignore
the windowBits setting in the zlib header.
Zlib-1.2.8 and earlier don't allow us to decrease the windowBits, so
undid the improvement in beta04.
 2013-05-07 13:48:48 -05:00
Glenn Randers-Pehrson
f02bb98fdf [libpng16] Choose to use our calculated windowBits or the zlib header setting 
via the benign-errors setting.  If benign errors are allowed, then ignore
the windowBits setting in the zlib header.
 2013-05-06 16:11:33 -05:00
Glenn Randers-Pehrson
a829dc9ed2 [libpng15] Imported from libpng-1.5.16beta04.tar 2013-05-02 07:31:01 -05:00
Glenn Randers-Pehrson
10de36ef25 [libpng15] Imported from libpng-1.5.15.tar 2013-03-27 20:26:28 -05:00
Glenn Randers-Pehrson
7f47448f49 [libpng15] Bump version to 1.5.15beta10 2013-03-13 09:19:26 -05:00
Glenn Randers-Pehrson
96a0c6a8c2 [libpng15] Imported from libpng-1.5.15beta09.tar 2013-03-13 09:19:12 -05:00
John Bowler
657dee1f3a [libpng15] Eliminated two warnings from the Intel C compiler. 2013-03-13 09:12:02 -05:00
Glenn Randers-Pehrson
8799d78361 [libpng15] Imported from libpng-1.5.14.tar 2013-01-23 21:06:35 -06:00
Glenn Randers-Pehrson
c11abedafe [libpng15] Update copyright year to 2013 in newly-changed files. 2013-01-01 07:26:47 -06:00
Glenn Randers-Pehrson
a2669c39c3 [libpng15] Fixed a minor bug in types to malloc and major bug in handling 
compressed iTXt. Compressed iTXt could not be handled. Change was made
earlier but omitted from libpng-1.5.14beta02 distributions.
 2012-12-15 11:09:44 -06:00
John Bowler
62cfc893e0 [libpng15] Rearranged building of ARM NEON optimizations. The ARM specific code 
is split out entirely to the arm subdirectory and changes to configure.ac and
Makefile.am to add new stuff are reduced.  Now material code changes,
although for build test purposes, --enable-arm-neon now builds on non-ARM
systems.
Rebuilt Makefile.in, configure, etc., with autoconf-2.69 and automake-1.2.5.
 2012-12-14 22:05:08 -06:00
John Bowler
9b66cbcf2f [libpng15] Fixed a minor bug in types to malloc and major bug in handling 
compressed iTXt. Compressed iTXt could not be handled.
 2012-12-14 21:59:20 -06:00
Glenn Randers-Pehrson
6e3b0c2e3a [libpng15] Bump version to 1.5.13beta03 2012-09-10 11:37:13 -05:00
Glenn Randers-Pehrson
38a706f83f [libpng15] Imported from libpng-1.5.10.tar 2012-03-29 06:33:41 -05:00
Glenn Randers-Pehrson
0ff5150f91 [libpng15] Reject all iCCP chunks after the first, 
even if the first one is invalid.
 2012-03-09 22:38:06 -06:00
Glenn Randers-Pehrson
8a2033d77f [libpng15] Eliminated redundant png_push_read_tEXt|zTXt|iTXt|unknown code from 
pngpread.c and use the sequential png_handle_tEXt, etc., in pngrutil.c;
now that png_ptr->buffer is inaccessible to applications, the special
handling is no longer useful.

Fixed bug with png_handle_hIST with odd chunk length (Frank Busse).
 2012-02-21 14:22:01 -06:00
Glenn Randers-Pehrson
f9accb9df2 [libpng15] Bump version to 1.5.10beta01 2012-02-18 23:33:18 -06:00
Glenn Randers-Pehrson
7a4e497b62 [libpng15] Imported from libpng-1.5.9.tar 2012-02-18 23:32:59 -06:00
Glenn Randers-Pehrson
0207529f27 [libpng15] Imported from libpng-1.5.9rc01.tar 2012-02-18 23:32:49 -06:00
Glenn Randers-Pehrson
cd3f5bb507 [libpng15] Imported from libpng-1.5.7.tar 2011-12-15 09:50:23 -06:00
Glenn Randers-Pehrson
12fb29f951 [libpng15] Reject invalid compression flag, method when reading the iTXt chunk. 2011-11-22 11:53:49 -06:00
Glenn Randers-Pehrson
8500b7720b [libpng15] Also allow uncompressed iTXt 2011-11-22 11:40:39 -06:00
Glenn Randers-Pehrson
e7ad104ac3 [libpng15] Reject invalid compression flag when reading the iTXt chunk. 2011-11-22 11:03:20 -06:00
Glenn Randers-Pehrson
8501129c17 [libpng15] Removed some "#if 0" blocks of test code that remained in pngrutil.c 2011-11-21 11:21:29 -06:00
Glenn Randers-Pehrson
bd2fa5def6 [libpng15] Removed "zTXt" from warning in generic chunk decompression function. 
Bug report by Franke Busse
 2011-11-19 13:28:08 -06:00