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[libpng14] Avoid Coverity issue 80858 (REVERSE NULL) in pngtest.c PNG_DEBUG builds.

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Glenn Randers-Pehrson 2015-05-20 13:27:06 -05:00
parent c1b4f50168
commit dda61188e9
3 changed files with 21 additions and 14 deletions
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5
ANNOUNCE
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@ -1,5 +1,5 @@
Libpng 1.4.17beta01 - May 9, 2015
Libpng 1.4.17beta01 - May 15, 2015
This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version.
@ -27,11 +27,12 @@ Other information:
Changes since the last public release (1.4.16):
version 1.4.17beta01 [May 9, 2015]
version 1.4.17beta01 [May 15, 2015]
Fix typecast in a png_debug2() statement in png_set_text_2() to
avoid a compiler warning in PNG_DEBUG builds.
Avoid Coverity issues 80855, 80856, and 80857 (PRINTF_ARG_MISMATCH)
in pngtest.c PNG_DEBUG builds.
Avoid Coverity issue 80858 (REVERSE NULL) in pngtest.c PNG_DEBUG builds.
Send comments/corrections/commendations to glennrp at users.sourceforge.net
or to png-mng-implement at lists.sf.net (subscription required; visit

28
CHANGES
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@ -1,11 +1,14 @@
#if 0
CHANGES - changes for libpng
version 0.2
version 0.1 [March 29, 1995]
initial work-in-progress release
version 0.2 [April 1, 1995]
added reader into png.h
fixed small problems in stub file
version 0.3
version 0.3 [April 8, 1995]
added pull reader
split up pngwrite.c to several files
added pnglib.txt
@ -16,7 +19,7 @@ version 0.3
added K&R support
added check for 64 KB blocks for 16 bit machines
version 0.4
version 0.4 [April 26, 1995]
cleaned up code and commented code
simplified time handling into png_time
created png_color_16 and png_color_8 to handle color needs
@ -27,28 +30,29 @@ version 0.4
cleaned up zTXt reader and writer (using zlib's Reset functions)
split transformations into pngrtran.c and pngwtran.c
version 0.5
version 0.5 [April 30, 1995]
interfaced with zlib 0.8
fixed many reading and writing bugs
saved using 3 spaces instead of tabs
version 0.6
version 0.6 [May 1, 1995]
first beta release
added png_large_malloc() and png_large_free()
added png_size_t
cleaned up some compiler warnings
added png_start_read_image()
version 0.7
version 0.7 [June 24, 1995]
cleaned up lots of bugs
finished dithering and other stuff
added test program
changed name from pnglib to libpng
version 0.71 [June, 1995]
version 0.71 [June 26, 1995]
changed pngtest.png for zlib 0.93
fixed error in libpng.txt and example.c
version 0.8
version 0.8 [August 20, 1995]
cleaned up some bugs
added png_set_filler()
split up pngstub.c into pngmem.c, pngio.c, and pngerror.c
@ -1304,8 +1308,9 @@ version 1.2.6beta4 [July 28, 2004]
Added #ifdef to remove some redundancy in png_malloc_default().
Use png_malloc instead of png_zalloc to allocate the pallete.
version 1.0.16rc1 and 1.2.6rc1 [August 4, 2004]
Fixed buffer overflow vulnerability in png_handle_tRNS()
Fixed integer arithmetic overflow vulnerability in png_read_png().
Fixed buffer overflow vulnerability (CVE-2004-0597) in png_handle_tRNS().
Fixed NULL dereference vulnerability (CVE-2004-0598) in png_handle_iCCP().
Fixed integer overflow vulnerability (CVE-2004-0599) in png_read_png().
Fixed some harmless bugs in png_handle_sBIT, etc, that would cause
duplicate chunk types to go undetected.
Fixed some timestamps in the -config version
@ -2951,11 +2956,12 @@ version 1.4.16rc01 [March 4, 2015]
version 1.4.16 [March 19, 2015]
No changes.
version 1.4.17beta01 [May 9, 2015]
version 1.4.17beta01 [May 15, 2015]
Fix typecast in a png_debug2() statement in png_set_text_2() to
avoid a compiler warning in PNG_DEBUG builds.
Avoid Coverity issues 80855, 80856, and 80857 (PRINTF_ARG_MISMATCH)
in pngtest.c PNG_DEBUG builds.
Avoid Coverity issue 80858 (REVERSE NULL) in pngtest.c PNG_DEBUG builds.
Send comments/corrections/commendations to glennrp at users.sourceforge.net
or to png-mng-implement at lists.sf.net (subscription required; visit

2
pngtest.c
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@ -1,7 +1,7 @@
/* pngtest.c - a simple test program to test libpng
*
* Last changed in libpng 1.4.17 [May 9, 2015]
* Last changed in libpng 1.4.17 [May 15, 2015]
* Copyright (c) 1998-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)