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[libpng10] Imported from libpng-1.0.68.tar

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This commit is contained in:
Glenn Randers-Pehrson 2017-08-24 15:00:11 -05:00
parent 47c8646c9c
commit cc3d228369
56 changed files with 251 additions and 162 deletions
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42
ANNOUNCE
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@ -1,5 +1,5 @@
Libpng 1.0.67 - December 29, 2016 Libpng 1.0.68 - August 24, 2017
This is a public release of libpng, intended for use in production codes. This is a public release of libpng, intended for use in production codes.
@ -8,41 +8,43 @@ Files available for download:
Source files with LF line endings (for Unix/Linux) and with a Source files with LF line endings (for Unix/Linux) and with a
"configure" script "configure" script
libpng-1.0.67.tar.xz (LZMA-compressed, recommended) libpng-1.0.68.tar.xz (LZMA-compressed, recommended)
libpng-1.0.67.tar.gz libpng-1.0.68.tar.gz
Source files with LF line endings (for Unix/Linux) without the Source files with LF line endings (for Unix/Linux) without the
"configure" script "configure" script
libpng-1.0.67-no-config.tar.xz (LZMA-compressed, recommended) libpng-1.0.68-no-config.tar.xz (LZMA-compressed, recommended)
libpng-1.0.67-no-config.tar.gz libpng-1.0.68-no-config.tar.gz
Source files with CRLF line endings (for Windows), without the Source files with CRLF line endings (for Windows), without the
"configure" script "configure" script
lpng1067.zip lpng1068.zip
lpng1067.7z lpng1068.7z
Project files Project files
libpng-1.0.67-project-netware.zip libpng-1.0.68-project-netware.zip
libpng-1.0.67-project-wince.zip libpng-1.0.68-project-wince.zip
Other information: Other information:
libpng-1.0.67-README.txt libpng-1.0.68-README.txt
libpng-1.0.67-KNOWNBUGS.txt libpng-1.0.68-KNOWNBUGS.txt
libpng-1.0.67-LICENSE.txt libpng-1.0.68-LICENSE.txt
libpng-1.0.67-Y2K-compliance.txt libpng-1.0.68-Y2K-compliance.txt
libpng-1.0.67-*.asc (armored detached GPG signatures) libpng-1.0.68-*.asc (armored detached GPG signatures)
Changes since the last public release (1.0.66): Changes since the last public release (1.0.67):
Fix typos in libpng.3 synopses (Eric S. Raymond). version 1.2.58 [August 24, 2017]
Fixed undefined behavior in png_push_save_buffer(). Do not call Added png_check_chunk_length() function, and check all chunks except
memcpy() with a null source, even if count is zero (Leon Scroggins III). IDAT against the default 8MB limit; check IDAT against the maximum
Fixed a potential null pointer dereference in png_set_text_2() (bug report size computed from IHDR parameters.
and patch by Patrick Keshishian). Check for 0 return from png_get_rowbytes() and added some (size_t) typecasts
in contrib/pngminus/*.c to stop some Coverity issues (162705, 162706,
and 162707).
Send comments/corrections/commendations to png-mng-implement at lists.sf.net Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit (subscription required; visit

15
CHANGES
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@ -2916,7 +2916,20 @@ version 1.2.57rc01 [December 27, 2016]
version 1.0.67 and 1.2.57 [December 29, 2016] version 1.0.67 and 1.2.57 [December 29, 2016]
Fixed a potential null pointer dereference in png_set_text_2() (bug report Fixed a potential null pointer dereference in png_set_text_2() (bug report
and patch by Patrick Keshishian). and patch by Patrick Keshishian, CVE-2016-10087).
version 1.2.58beta01 [August 11, 2017]
Added png_check_chunk_length() function, and check all chunks except
IDAT against the default 8MB limit; check IDAT against the maximum
size computed from IHDR parameters.
version 1.2.58rc01 [August 19, 2017]
Check for 0 return from png_get_rowbytes() and added some (size_t) typecasts
in contrib/pngminus/*.c to stop some Coverity issues (162705, 162706,
and 162707).
version 1.0.68 and 1.2.58 [August 24, 2017]
No changes.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit (subscription required; visit

4
INSTALL
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@ -1,5 +1,5 @@
Installing libpng version 1.0.67 - December 29, 2016 Installing libpng version 1.0.68 - August 24, 2017
On Unix/Linux and similar systems, you can simply type On Unix/Linux and similar systems, you can simply type
@ -46,7 +46,7 @@ to have access to the zlib.h and zconf.h include files that
correspond to the version of zlib that's installed. correspond to the version of zlib that's installed.
You can rename the directories that you downloaded (they You can rename the directories that you downloaded (they
might be called "libpng-1.0.67" or "libpng10" and "zlib-1.2.3" might be called "libpng-1.0.68" or "libpng10" and "zlib-1.2.3"
or "zlib123") so that you have directories called "zlib" and "libpng". or "zlib123") so that you have directories called "zlib" and "libpng".
Your directory structure should look like this: Your directory structure should look like this:

2
KNOWNBUG
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@ -1,5 +1,5 @@
Known bugs in libpng version 1.0.67 Known bugs in libpng version 1.0.68
1. February 23, 2006: The custom makefiles don't build libpng with -lz. 1. February 23, 2006: The custom makefiles don't build libpng with -lz.

6
LICENSE
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@ -10,8 +10,8 @@ this sentence.
This code is released under the libpng license. This code is released under the libpng license.
libpng versions 1.0.7, July 1, 2000, through 1.0.67, December 29, 2016, are libpng versions 1.0.7, July 1, 2000, through 1.0.68, August 24, 2017, are
Copyright (c) 2000-2002, 2004, 2006-2016 Glenn Randers-Pehrson, are Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are
derived from libpng-1.0.6, and are distributed according to the same derived from libpng-1.0.6, and are distributed according to the same
disclaimer and license as libpng-1.0.6 with the following individuals disclaimer and license as libpng-1.0.6 with the following individuals
added to the list of Contributing Authors: added to the list of Contributing Authors:
@ -107,4 +107,4 @@ the additional disclaimers inserted at version 1.0.7.
Glenn Randers-Pehrson Glenn Randers-Pehrson
glennrp at users.sourceforge.net glennrp at users.sourceforge.net
December 29, 2016 August 24, 2017

2
Makefile.am
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@ -89,7 +89,7 @@ EXTRA_DIST= \
${srcdir}/contrib/pngsuite/* \ ${srcdir}/contrib/pngsuite/* \
${srcdir}/contrib/visupng/* \ ${srcdir}/contrib/visupng/* \
$(TESTS) \ $(TESTS) \
example.c libpng-1.0.67.txt pnggccrd.c pngvcrd.c example.c libpng-1.0.68.txt pnggccrd.c pngvcrd.c
CLEANFILES= pngout.png libpng10.pc libpng10-config libpng.vers \ CLEANFILES= pngout.png libpng10.pc libpng10-config libpng.vers \
libpng.sym libpng.sym

2
Makefile.in
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@ -647,7 +647,7 @@ EXTRA_DIST = \
${srcdir}/contrib/pngsuite/* \ ${srcdir}/contrib/pngsuite/* \
${srcdir}/contrib/visupng/* \ ${srcdir}/contrib/visupng/* \
$(TESTS) \ $(TESTS) \
example.c libpng-1.0.67.txt pnggccrd.c pngvcrd.c example.c libpng-1.0.68.txt pnggccrd.c pngvcrd.c
CLEANFILES = pngout.png libpng10.pc libpng10-config libpng.vers \ CLEANFILES = pngout.png libpng10.pc libpng10-config libpng.vers \
libpng.sym libpng.sym

14
README
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@ -1,4 +1,4 @@
README for libpng version 1.0.67 - December 29, 2016 (shared library 10.0) README for libpng version 1.0.68 - August 24, 2017 (shared library 10.0)
See the note about version numbers near the top of png.h See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng. See INSTALL for instructions on how to install libpng.
@ -207,11 +207,11 @@ Files in this distribution:
makefile.std => Generic UNIX makefile (cc, creates static makefile.std => Generic UNIX makefile (cc, creates static
libpng.a) libpng.a)
makefile.elf => Linux/ELF gcc makefile symbol versioning, makefile.elf => Linux/ELF gcc makefile symbol versioning,
creates libpng10.so.0.1.0.67) creates libpng10.so.0.1.0.68)
makefile.linux => Linux/ELF makefile (gcc, creates makefile.linux => Linux/ELF makefile (gcc, creates
libpng10.so.0.1.0.67) libpng10.so.0.1.0.68)
makefile.gcmmx => Linux/ELF makefile (gcc, creates makefile.gcmmx => Linux/ELF makefile (gcc, creates
libpng10.so.0.1.0.67, previously libpng10.so.0.1.0.68, previously
used assembler code tuned for Intel MMX used assembler code tuned for Intel MMX
platform) platform)
makefile.gcc => Generic makefile (gcc, creates static makefile.gcc => Generic makefile (gcc, creates static
@ -236,12 +236,12 @@ Files in this distribution:
makefile.openbsd => OpenBSD makefile makefile.openbsd => OpenBSD makefile
makefile.sgi => Silicon Graphics IRIX (cc, creates static lib) makefile.sgi => Silicon Graphics IRIX (cc, creates static lib)
makefile.sggcc => Silicon Graphics makefile.sggcc => Silicon Graphics
(gcc, creates libpng10.so.0.1.0.67) (gcc, creates libpng10.so.0.1.0.68)
makefile.sunos => Sun makefile makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile makefile.solaris => Solaris 2.X makefile
(gcc, creates libpng10.so.0.1.0.67) (gcc, creates libpng10.so.0.1.0.68)
makefile.so9 => Solaris 9 makefile makefile.so9 => Solaris 9 makefile
(gcc, creates libpng10.so.0.1.0.67) (gcc, creates libpng10.so.0.1.0.68)
makefile.32sunu => Sun Ultra 32-bit makefile makefile.32sunu => Sun Ultra 32-bit makefile
makefile.64sunu => Sun Ultra 64-bit makefile makefile.64sunu => Sun Ultra 64-bit makefile
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc

4
Y2KINFO
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@ -1,13 +1,13 @@
Y2K compliance in libpng: Y2K compliance in libpng:
========================= =========================
December 29, 2016 August 24, 2017
Since the PNG Development group is an ad-hoc body, we can't make Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.
This is your unofficial assurance that libpng from version 0.71 and This is your unofficial assurance that libpng from version 0.71 and
upward through 1.0.67 are Y2K compliant. It is my belief that earlier upward through 1.0.68 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant. versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer Libpng only has three year fields. One is a 2-byte unsigned integer

24
configure vendored
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@ -1,6 +1,6 @@
#! /bin/sh #! /bin/sh
# Guess values for system-dependent variables and create Makefiles. # Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.69 for libpng 1.0.67. # Generated by GNU Autoconf 2.69 for libpng 1.0.68.
# #
# Report bugs to <png-mng-implement@lists.sourceforge.net>. # Report bugs to <png-mng-implement@lists.sourceforge.net>.
# #
@ -590,8 +590,8 @@ MAKEFLAGS=
# Identity of this package. # Identity of this package.
PACKAGE_NAME='libpng' PACKAGE_NAME='libpng'
PACKAGE_TARNAME='libpng' PACKAGE_TARNAME='libpng'
PACKAGE_VERSION='1.0.67' PACKAGE_VERSION='1.0.68'
PACKAGE_STRING='libpng 1.0.67' PACKAGE_STRING='libpng 1.0.68'
PACKAGE_BUGREPORT='png-mng-implement@lists.sourceforge.net' PACKAGE_BUGREPORT='png-mng-implement@lists.sourceforge.net'
PACKAGE_URL='' PACKAGE_URL=''
@ -1334,7 +1334,7 @@ if test "$ac_init_help" = "long"; then
# Omit some internal or obsolete options to make the list less imposing. # Omit some internal or obsolete options to make the list less imposing.
# This message is too long to be a string in the A/UX 3.1 sh. # This message is too long to be a string in the A/UX 3.1 sh.
cat <<_ACEOF cat <<_ACEOF
\`configure' configures libpng 1.0.67 to adapt to many kinds of systems. \`configure' configures libpng 1.0.68 to adapt to many kinds of systems.
Usage: $0 [OPTION]... [VAR=VALUE]... Usage: $0 [OPTION]... [VAR=VALUE]...
@ -1404,7 +1404,7 @@ fi
if test -n "$ac_init_help"; then if test -n "$ac_init_help"; then
case $ac_init_help in case $ac_init_help in
short | recursive ) echo "Configuration of libpng 1.0.67:";; short | recursive ) echo "Configuration of libpng 1.0.68:";;
esac esac
cat <<\_ACEOF cat <<\_ACEOF
@ -1523,7 +1523,7 @@ fi
test -n "$ac_init_help" && exit $ac_status test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then if $ac_init_version; then
cat <<\_ACEOF cat <<\_ACEOF
libpng configure 1.0.67 libpng configure 1.0.68
generated by GNU Autoconf 2.69 generated by GNU Autoconf 2.69
Copyright (C) 2012 Free Software Foundation, Inc. Copyright (C) 2012 Free Software Foundation, Inc.
@ -1946,7 +1946,7 @@ cat >config.log <<_ACEOF
This file contains any messages produced by compilers while This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake. running configure, to aid debugging if configure makes a mistake.
It was created by libpng $as_me 1.0.67, which was It was created by libpng $as_me 1.0.68, which was
generated by GNU Autoconf 2.69. Invocation command line was generated by GNU Autoconf 2.69. Invocation command line was
$ $0 $@ $ $0 $@
@ -2809,7 +2809,7 @@ fi
# Define the identity of the package. # Define the identity of the package.
PACKAGE='libpng' PACKAGE='libpng'
VERSION='1.0.67' VERSION='1.0.68'
cat >>confdefs.h <<_ACEOF cat >>confdefs.h <<_ACEOF
@ -2926,10 +2926,10 @@ fi
PNGLIB_VERSION=1.0.67 PNGLIB_VERSION=1.0.68
PNGLIB_MAJOR=1 PNGLIB_MAJOR=1
PNGLIB_MINOR=0 PNGLIB_MINOR=0
PNGLIB_RELEASE=67 PNGLIB_RELEASE=68
@ -13619,7 +13619,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# report actual input values of CONFIG_FILES etc. instead of their # report actual input values of CONFIG_FILES etc. instead of their
# values after options handling. # values after options handling.
ac_log=" ac_log="
This file was extended by libpng $as_me 1.0.67, which was This file was extended by libpng $as_me 1.0.68, which was
generated by GNU Autoconf 2.69. Invocation command line was generated by GNU Autoconf 2.69. Invocation command line was
CONFIG_FILES = $CONFIG_FILES CONFIG_FILES = $CONFIG_FILES
@ -13685,7 +13685,7 @@ _ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`" ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
ac_cs_version="\\ ac_cs_version="\\
libpng config.status 1.0.67 libpng config.status 1.0.68
configured by $0, generated by GNU Autoconf 2.69, configured by $0, generated by GNU Autoconf 2.69,
with options \\"\$ac_cs_config\\" with options \\"\$ac_cs_config\\"

6
configure.ac
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@ -18,15 +18,15 @@ AC_PREREQ(2.59)
dnl Version number stuff here: dnl Version number stuff here:
AC_INIT([libpng], [1.0.67], [png-mng-implement@lists.sourceforge.net]) AC_INIT([libpng], [1.0.68], [png-mng-implement@lists.sourceforge.net])
AM_INIT_AUTOMAKE AM_INIT_AUTOMAKE
dnl stop configure from automagically running automake dnl stop configure from automagically running automake
AM_MAINTAINER_MODE AM_MAINTAINER_MODE
PNGLIB_VERSION=1.0.67 PNGLIB_VERSION=1.0.68
PNGLIB_MAJOR=1 PNGLIB_MAJOR=1
PNGLIB_MINOR=0 PNGLIB_MINOR=0
PNGLIB_RELEASE=67 PNGLIB_RELEASE=68
dnl End of version number stuff dnl End of version number stuff

62
contrib/pngminus/png2pnm.c
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@ -1,8 +1,11 @@
/* /*
* png2pnm.c --- conversion from PNG-file to PGM/PPM-file * png2pnm.c --- conversion from PNG-file to PGM/PPM-file
* copyright (C) 1999 by Willem van Schaik <willem@schaik.com> * copyright (C) 1999,2017 by Willem van Schaik <willem at schaik.com>
* *
* version 1.0 - 1999.10.15 - First version. * version 1.0 - 1999.10.15 - First version.
* 1.1 - 2017.04.22 - Add buffer-size check (Glenn Randers-Pehrson)
* 1.2 - 2017.08.24 - Fix potential overflow in buffer-size check
(Glenn Randers-Pehrson)
* *
* Permission to use, copy, modify, and distribute this software and * Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted, * its documentation for any purpose and without fee is hereby granted,
@ -18,6 +21,7 @@
#include <mem.h> #include <mem.h>
#include <fcntl.h> #include <fcntl.h>
#endif #endif
#include <zlib.h>
#ifndef BOOL #ifndef BOOL
#define BOOL unsigned char #define BOOL unsigned char
@ -51,7 +55,8 @@
int main (int argc, char *argv[]); int main (int argc, char *argv[]);
void usage (); void usage ();
BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL alpha); BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw,
BOOL alpha);
/* /*
* main * main
@ -84,7 +89,8 @@ int main(int argc, char *argv[])
if ((fp_al = fopen (argv[argi], "wb")) == NULL) if ((fp_al = fopen (argv[argi], "wb")) == NULL)
{ {
fprintf (stderr, "PNM2PNG\n"); fprintf (stderr, "PNM2PNG\n");
fprintf (stderr, "Error: can not create alpha-channel file %s\n", argv[argi]); fprintf (stderr, "Error: can not create alpha-channel file %s\n",
argv[argi]);
exit (1); exit (1);
} }
break; break;
@ -144,7 +150,7 @@ int main(int argc, char *argv[])
if (png2pnm (fp_rd, fp_wr, fp_al, raw, alpha) == FALSE) if (png2pnm (fp_rd, fp_wr, fp_al, raw, alpha) == FALSE)
{ {
fprintf (stderr, "PNG2PNM\n"); fprintf (stderr, "PNG2PNM\n");
fprintf (stderr, "Error: unsuccessful convertion of PNG-image\n"); fprintf (stderr, "Error: unsuccessful conversion of PNG-image\n");
exit(1); exit(1);
} }
@ -175,9 +181,11 @@ void usage()
fprintf (stderr, "Usage: png2pnm [options] <file>.png [<file>.pnm]\n"); fprintf (stderr, "Usage: png2pnm [options] <file>.png [<file>.pnm]\n");
fprintf (stderr, " or: ... | png2pnm [options]\n"); fprintf (stderr, " or: ... | png2pnm [options]\n");
fprintf (stderr, "Options:\n"); fprintf (stderr, "Options:\n");
fprintf (stderr, " -r[aw] write pnm-file in binary format (P4/P5/P6) (default)\n"); fprintf (stderr,
" -r[aw] write pnm-file in binary format (P4/P5/P6) (default)\n");
fprintf (stderr, " -n[oraw] write pnm-file in ascii format (P1/P2/P3)\n"); fprintf (stderr, " -n[oraw] write pnm-file in ascii format (P1/P2/P3)\n");
fprintf (stderr, " -a[lpha] <file>.pgm write PNG alpha channel as pgm-file\n"); fprintf (stderr,
" -a[lpha] <file>.pgm write PNG alpha channel as pgm-file\n");
fprintf (stderr, " -h | -? print this help-information\n"); fprintf (stderr, " -h | -? print this help-information\n");
} }
@ -185,10 +193,11 @@ void usage()
* png2pnm * png2pnm
*/ */
BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL alpha) BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file,
volatile BOOL raw, BOOL alpha)
{ {
png_struct *png_ptr = NULL; png_struct *png_ptr = NULL;
png_info *info_ptr = NULL; png_info *info_ptr = NULL;
png_byte buf[8]; png_byte buf[8];
png_byte *png_pixels = NULL; png_byte *png_pixels = NULL;
png_byte **row_pointers = NULL; png_byte **row_pointers = NULL;
@ -211,13 +220,13 @@ BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL a
if (ret != 8) if (ret != 8)
return FALSE; return FALSE;
ret = !png_sig_cmp (buf, 0, 8); ret = png_sig_cmp (buf, 0, 8);
if (!ret) if (ret)
return FALSE; return FALSE;
/* create png and info structures */ /* create png and info structures */
png_ptr = png_create_read_struct (PNG_LIBPNG_VER_STRING, png_ptr = png_create_read_struct (png_get_libpng_ver(NULL),
NULL, NULL, NULL); NULL, NULL, NULL);
if (!png_ptr) if (!png_ptr)
return FALSE; /* out of memory */ return FALSE; /* out of memory */
@ -260,7 +269,7 @@ BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL a
png_set_expand (png_ptr); png_set_expand (png_ptr);
#ifdef NJET #ifdef NJET
/* downgrade 16-bit images to 8 bit */ /* downgrade 16-bit images to 8-bit */
if (bit_depth == 16) if (bit_depth == 16)
png_set_strip_16 (png_ptr); png_set_strip_16 (png_ptr);
/* transform grayscale images into full-color */ /* transform grayscale images into full-color */
@ -314,12 +323,21 @@ BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL a
/* row_bytes is the width x number of channels x (bit-depth / 8) */ /* row_bytes is the width x number of channels x (bit-depth / 8) */
row_bytes = png_get_rowbytes (png_ptr, info_ptr); row_bytes = png_get_rowbytes (png_ptr, info_ptr);
if ((png_pixels = (png_byte *) malloc (row_bytes * height * sizeof (png_byte))) == NULL) { if ((row_bytes == 0 || (size_t)height > ((size_t)(-1))/(size_t)row_bytes))
{
/* too big */
png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
return FALSE;
}
if ((png_pixels = (png_byte *)
malloc ((size_t)row_bytes * (size_t)height * sizeof (png_byte))) == NULL)
{
png_destroy_read_struct (&png_ptr, &info_ptr, NULL); png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
return FALSE; return FALSE;
} }
if ((row_pointers = (png_byte **) malloc (height * sizeof (png_bytep))) == NULL) if ((row_pointers = (png_byte **)
malloc ((size_t)height * sizeof (png_bytep))) == NULL)
{ {
png_destroy_read_struct (&png_ptr, &info_ptr, NULL); png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
free (png_pixels); free (png_pixels);
@ -328,7 +346,7 @@ BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL a
} }
/* set the individual row_pointers to point at the correct offsets */ /* set the individual row_pointers to point at the correct offsets */
for (i = 0; i < (height); i++) for (i = 0; i < ((int) height); i++)
row_pointers[i] = png_pixels + i * row_bytes; row_pointers[i] = png_pixels + i * row_bytes;
/* now we can go ahead and just read the whole image */ /* now we can go ahead and just read the whole image */
@ -371,9 +389,9 @@ BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL a
/* write data to PNM file */ /* write data to PNM file */
pix_ptr = png_pixels; pix_ptr = png_pixels;
for (row = 0; row < height; row++) for (row = 0; row < (int) height; row++)
{ {
for (col = 0; col < width; col++) for (col = 0; col < (int) width; col++)
{ {
for (i = 0; i < (channels - alpha_present); i++) for (i = 0; i < (channels - alpha_present); i++)
{ {
@ -381,7 +399,7 @@ BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL a
fputc ((int) *pix_ptr++ , pnm_file); fputc ((int) *pix_ptr++ , pnm_file);
else else
if (bit_depth == 16){ if (bit_depth == 16){
dep_16 = (long) *pix_ptr++; dep_16 = (long) *pix_ptr++;
fprintf (pnm_file, "%ld ", (dep_16 << 8) + ((long) *pix_ptr++)); fprintf (pnm_file, "%ld ", (dep_16 << 8) + ((long) *pix_ptr++));
} }
else else
@ -400,10 +418,11 @@ BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL a
if (raw) if (raw)
fputc ((int) *pix_ptr++ , alpha_file); fputc ((int) *pix_ptr++ , alpha_file);
else else
if (bit_depth == 16){ if (bit_depth == 16)
dep_16 = (long) *pix_ptr++; {
dep_16 = (long) *pix_ptr++;
fprintf (alpha_file, "%ld ", (dep_16 << 8) + (long) *pix_ptr++); fprintf (alpha_file, "%ld ", (dep_16 << 8) + (long) *pix_ptr++);
} }
else else
fprintf (alpha_file, "%ld ", (long) *pix_ptr++); fprintf (alpha_file, "%ld ", (long) *pix_ptr++);
} }
@ -424,6 +443,7 @@ BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL a
if (png_pixels != (unsigned char*) NULL) if (png_pixels != (unsigned char*) NULL)
free (png_pixels); free (png_pixels);
PNG_UNUSED(raw) /* to quiet a Coverity defect */
return TRUE; return TRUE;
} /* end of source */ } /* end of source */

20
contrib/pngminus/pnm2png.c
View File

@ -1,9 +1,12 @@
/* /*
* pnm2png.c --- conversion from PBM/PGM/PPM-file to PNG-file * pnm2png.c --- conversion from PBM/PGM/PPM-file to PNG-file
* copyright (C) 1999 by Willem van Schaik <willem@schaik.com> * copyright (C) 1999,2015,2017 by Willem van Schaik <willem at schaik.com>
* *
* version 1.0 - 1999.10.15 - First version. * version 1.0 - 1999.10.15 - First version.
* version 1.1 - 2015.07.29 - Fixed leaks (Glenn Randers-Pehrson) * version 1.1 - 2015.07.29 - Fixed leaks (Glenn Randers-Pehrson)
* version 1.2 - 2017.04.22 - Add buffer-size check
* 1.3 - 2017.08.24 - Fix potential overflow in buffer-size check
* (Glenn Randers-Pehrson)
* *
* Permission to use, copy, modify, and distribute this software and * Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted, * its documentation for any purpose and without fee is hereby granted,
@ -370,9 +373,14 @@ BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file, BOOL interlace,
row_bytes = (width * channels * bit_depth + 7) / 8; row_bytes = (width * channels * bit_depth + 7) / 8;
else else
#endif #endif
/* row_bytes is the width x number of channels x (bit-depth / 8) */ /* row_bytes is the width x number of channels x (bit-depth / 8) */
row_bytes = width * channels * ((bit_depth <= 8) ? 1 : 2); row_bytes = width * channels * ((bit_depth <= 8) ? 1 : 2);
if ((row_bytes == 0 || (size_t)height > ((size_t)(-1))/(size_t)row_bytes)
{
/* too big */
return FALSE;
}
if ((png_pixels = (png_byte *) if ((png_pixels = (png_byte *)
malloc (row_bytes * height * sizeof (png_byte))) == NULL) malloc (row_bytes * height * sizeof (png_byte))) == NULL)
return FALSE; return FALSE;
@ -383,7 +391,8 @@ BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file, BOOL interlace,
for (row = 0; row < (int) height; row++) for (row = 0; row < (int) height; row++)
{ {
#if defined(PNG_WRITE_INVERT_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED) #if defined(PNG_WRITE_INVERT_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
if (packed_bitmap) { if (packed_bitmap)
{
for (i = 0; i < (int) row_bytes; i++) for (i = 0; i < (int) row_bytes; i++)
/* png supports this format natively so no conversion is needed */ /* png supports this format natively so no conversion is needed */
*pix_ptr++ = get_data (pnm_file, 8); *pix_ptr++ = get_data (pnm_file, 8);
@ -504,6 +513,8 @@ BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file, BOOL interlace,
if (png_pixels != (unsigned char*) NULL) if (png_pixels != (unsigned char*) NULL)
free (png_pixels); free (png_pixels);
PNG_UNUSED(raw) /* Quiet a Coverity defect */
return TRUE; return TRUE;
} /* end of pnm2png */ } /* end of pnm2png */
@ -520,7 +531,8 @@ void get_token(FILE *pnm_file, char *token)
do do
{ {
ret = fgetc(pnm_file); ret = fgetc(pnm_file);
if (ret == '#') { if (ret == '#')
{
/* the rest of this line is a comment */ /* the rest of this line is a comment */
do do
{ {

8
libpng-1.0.67.txt → libpng-1.0.68.txt
View File

@ -1,6 +1,6 @@
libpng.txt - A description on how to use and modify libpng libpng.txt - A description on how to use and modify libpng
libpng version 1.0.67 - December 29, 2016 libpng version 1.0.68 - August 24, 2017
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net> <glennrp at users.sourceforge.net>
Copyright (c) 1998-2014 Glenn Randers-Pehrson Copyright (c) 1998-2014 Glenn Randers-Pehrson
@ -11,7 +11,7 @@ libpng.txt - A description on how to use and modify libpng
Based on: Based on:
libpng versions 0.97, January 1998, through 1.0.67 - December 29, 2016 libpng versions 0.97, January 1998, through 1.0.68 - August 24, 2017
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2014 Glenn Randers-Pehrson Copyright (c) 1998-2014 Glenn Randers-Pehrson
@ -879,7 +879,7 @@ things.
As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was
added. It expands the sample depth without changing tRNS to alpha. added. It expands the sample depth without changing tRNS to alpha.
As of libpng version 1.0.67, not all possible expansions are supported. As of libpng version 1.0.68, not all possible expansions are supported.
In the following table, the 01 means grayscale with depth<8, 31 means In the following table, the 01 means grayscale with depth<8, 31 means
indexed with depth<8, other numerals represent the color type, "T" means indexed with depth<8, other numerals represent the color type, "T" means
@ -3059,7 +3059,7 @@ Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.
This is your unofficial assurance that libpng from version 0.71 and This is your unofficial assurance that libpng from version 0.71 and
upward through 1.0.67 are Y2K compliant. It is my belief that earlier upward through 1.0.68 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant. versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer that Libpng only has three year fields. One is a 2-byte unsigned integer that

20
libpng.3
View File

@ -1,6 +1,6 @@
.TH LIBPNG 3 "December 29, 2016" .TH LIBPNG 3 "August 24, 2017"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.67 libpng \- Portable Network Graphics (PNG) Reference Library 1.0.68
.SH SYNOPSIS .SH SYNOPSIS
\fB \fB
#include <png.h>\fP #include <png.h>\fP
@ -424,7 +424,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
.SH LIBPNG.TXT .SH LIBPNG.TXT
libpng.txt - A description on how to use and modify libpng libpng.txt - A description on how to use and modify libpng
libpng version 1.0.67 - December 29, 2016 libpng version 1.0.68 - August 24, 2017
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net> <glennrp at users.sourceforge.net>
Copyright (c) 1998-2014 Glenn Randers-Pehrson Copyright (c) 1998-2014 Glenn Randers-Pehrson
@ -435,7 +435,7 @@ libpng.txt - A description on how to use and modify libpng
Based on: Based on:
libpng versions 0.97, January 1998, through 1.0.67 - December 29, 2016 libpng versions 0.97, January 1998, through 1.0.68 - August 24, 2017
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2014 Glenn Randers-Pehrson Copyright (c) 1998-2014 Glenn Randers-Pehrson
@ -1303,7 +1303,7 @@ things.
As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was
added. It expands the sample depth without changing tRNS to alpha. added. It expands the sample depth without changing tRNS to alpha.
As of libpng version 1.0.67, not all possible expansions are supported. As of libpng version 1.0.68, not all possible expansions are supported.
In the following table, the 01 means grayscale with depth<8, 31 means In the following table, the 01 means grayscale with depth<8, 31 means
indexed with depth<8, other numerals represent the color type, "T" means indexed with depth<8, other numerals represent the color type, "T" means
@ -3483,7 +3483,7 @@ Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.
This is your unofficial assurance that libpng from version 0.71 and This is your unofficial assurance that libpng from version 0.71 and
upward through 1.0.67 are Y2K compliant. It is my belief that earlier upward through 1.0.68 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant. versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer that Libpng only has three year fields. One is a 2-byte unsigned integer that
@ -3637,7 +3637,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation. Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.0.67 - December 29, 2016: Libpng version 1.0.68 - August 24, 2017:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net). Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
@ -3662,8 +3662,8 @@ this sentence.
This code is released under the libpng license. This code is released under the libpng license.
libpng versions 1.0.7, July 1, 2000, through 1.0.67, December 29, 2016, are libpng versions 1.0.7, July 1, 2000, through 1.0.68, August 24, 2017, are
Copyright (c) 2000-2002, 2004, 2006-2016 Glenn Randers-Pehrson, are Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are
derived from libpng-1.0.6, and are distributed according to the same derived from libpng-1.0.6, and are distributed according to the same
disclaimer and license as libpng-1.0.6 with the following individuals disclaimer and license as libpng-1.0.6 with the following individuals
added to the list of Contributing Authors: added to the list of Contributing Authors:
@ -3759,7 +3759,7 @@ the additional disclaimers inserted at version 1.0.7.
Glenn Randers-Pehrson Glenn Randers-Pehrson
glennrp at users.sourceforge.net glennrp at users.sourceforge.net
December 29, 2016 August 24, 2017
.\" end of man page .\" end of man page

4
libpngpf.3
View File

@ -1,6 +1,6 @@
.TH LIBPNGPF 3 "December 29, 2016" .TH LIBPNGPF 3 "August 24, 2017"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.67 libpng \- Portable Network Graphics (PNG) Reference Library 1.0.68
(private functions) (private functions)
.SH SYNOPSIS .SH SYNOPSIS
\fB#include <png.h>\fP \fB#include <png.h>\fP

2
png.5
View File

@ -1,4 +1,4 @@
.TH PNG 5 "December 29, 2016" .TH PNG 5 "August 24, 2017"
.SH NAME .SH NAME
png \- Portable Network Graphics (PNG) format png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION .SH DESCRIPTION

14
png.c
View File

@ -1,8 +1,8 @@
/* png.c - location for general purpose libpng functions /* png.c - location for general purpose libpng functions
* *
* Last changed in libpng 1.2.57 [December 29, 2016] * Last changed in libpng 1.2.58 [(PENDING RELEASE)]
* Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
* *
@ -17,7 +17,7 @@
#include "png.h" #include "png.h"
/* Generate a compiler error if there is an old png.h in the search path. */ /* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_0_67 Your_png_h_is_not_version_1_0_67; typedef version_1_0_68 Your_png_h_is_not_version_1_0_68;
/* Version information for C files. This had better match the version /* Version information for C files. This had better match the version
* string defined in png.h. * string defined in png.h.
@ -732,15 +732,15 @@ png_get_copyright(png_structp png_ptr)
#else #else
#ifdef __STDC__ #ifdef __STDC__
return ((png_charp) PNG_STRING_NEWLINE \ return ((png_charp) PNG_STRING_NEWLINE \
"libpng version 1.0.67 - December 29, 2016" PNG_STRING_NEWLINE \ "libpng version 1.0.68 - August 24, 2017" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson" \ "Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson" \
PNG_STRING_NEWLINE \ PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \ "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \ "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
PNG_STRING_NEWLINE); PNG_STRING_NEWLINE);
#else #else
return ((png_charp) "libpng version 1.0.67 - December 29, 2016\ return ((png_charp) "libpng version 1.0.68 - August 24, 2017\
Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson\ Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\ Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc."); Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.");
#endif #endif

31
png.h
View File

@ -1,9 +1,9 @@
/* png.h - header file for PNG reference library /* png.h - header file for PNG reference library
* *
* libpng version 1.0.67, December 29, 2016 * libpng version 1.0.68, August 24, 2017
* *
* Copyright (c) 1998-2016 Glenn Randers-Pehrson * Copyright (c) 1998-2017 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
* *
@ -12,7 +12,7 @@
* Authors and maintainers: * Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
* libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger * libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.0.67, December 29, 2016: Glenn * libpng versions 0.97, January 1998, through 1.0.68, August 24, 2017: Glenn
* See also "Contributing Authors", below. * See also "Contributing Authors", below.
*/ */
@ -24,8 +24,8 @@
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* *
* libpng versions 1.0.7, July 1, 2000, through 1.0.67, December 29, 2016, are * libpng versions 1.0.7, July 1, 2000, through 1.0.68, August 24, 2017, are
* Copyright (c) 2000-2002, 2004, 2006-2016 Glenn Randers-Pehrson, are * Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are
* derived from libpng-1.0.6, and are distributed according to the same * derived from libpng-1.0.6, and are distributed according to the same
* disclaimer and license as libpng-1.0.6 with the following individuals * disclaimer and license as libpng-1.0.6 with the following individuals
* added to the list of Contributing Authors: * added to the list of Contributing Authors:
@ -179,8 +179,8 @@
* ... * ...
* 1.0.19 10 10019 10.so.0.19[.0] * 1.0.19 10 10019 10.so.0.19[.0]
* ... * ...
* 1.0.67 10 10067 10.so.0.67[.0] * 1.0.68 10 10068 10.so.0.68[.0]
* 1.2.57 13 10257 12.so.0.57[.0] * 1.2.58 13 10258 12.so.0.58[.0]
* *
* Henceforth the source version will match the shared-library major * Henceforth the source version will match the shared-library major
* and minor numbers; the shared-library major version number will be * and minor numbers; the shared-library major version number will be
@ -208,13 +208,13 @@
* Y2K compliance in libpng: * Y2K compliance in libpng:
* ========================= * =========================
* *
* December 29, 2016 * August 24, 2017
* *
* Since the PNG Development group is an ad-hoc body, we can't make * Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration. * an official declaration.
* *
* This is your unofficial assurance that libpng from version 0.71 and * This is your unofficial assurance that libpng from version 0.71 and
* upward through 1.0.67 are Y2K compliant. It is my belief that earlier * upward through 1.0.68 are Y2K compliant. It is my belief that earlier
* versions were also Y2K compliant. * versions were also Y2K compliant.
* *
* Libpng only has three year fields. One is a 2-byte unsigned integer * Libpng only has three year fields. One is a 2-byte unsigned integer
@ -270,9 +270,9 @@
*/ */
/* Version information for png.h - this should match the version in png.c */ /* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.0.67" #define PNG_LIBPNG_VER_STRING "1.0.68"
#define PNG_HEADER_VERSION_STRING \ #define PNG_HEADER_VERSION_STRING \
" libpng version 1.0.67 - December 29, 2016\n" " libpng version 1.0.68 - August 24, 2017\n"
#define PNG_LIBPNG_VER_SONUM 0 #define PNG_LIBPNG_VER_SONUM 0
#define PNG_LIBPNG_VER_DLLNUM 10 #define PNG_LIBPNG_VER_DLLNUM 10
@ -280,7 +280,7 @@
/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */ /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
#define PNG_LIBPNG_VER_MAJOR 1 #define PNG_LIBPNG_VER_MAJOR 1
#define PNG_LIBPNG_VER_MINOR 0 #define PNG_LIBPNG_VER_MINOR 0
#define PNG_LIBPNG_VER_RELEASE 67 #define PNG_LIBPNG_VER_RELEASE 68
/* This should match the numeric part of the final component of /* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero: * PNG_LIBPNG_VER_STRING, omitting any leading zero:
*/ */
@ -310,7 +310,7 @@
* version 1.0.0 was mis-numbered 100 instead of 10000). From * version 1.0.0 was mis-numbered 100 instead of 10000). From
* version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release * version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release
*/ */
#define PNG_LIBPNG_VER 10067 /* 1.0.67 */ #define PNG_LIBPNG_VER 10068 /* 1.0.68 */
#ifndef PNG_VERSION_INFO_ONLY #ifndef PNG_VERSION_INFO_ONLY
/* Include the compression library's header */ /* Include the compression library's header */
@ -1340,7 +1340,7 @@ struct png_struct_def
/* This triggers a compiler error in png.c, if png.c and png.h /* This triggers a compiler error in png.c, if png.c and png.h
* do not agree upon the version number. * do not agree upon the version number.
*/ */
typedef png_structp version_1_0_67; typedef png_structp version_1_0_68;
typedef png_struct FAR * FAR * png_structpp; typedef png_struct FAR * FAR * png_structpp;
@ -3409,6 +3409,9 @@ PNG_EXTERN void png_handle_unknown PNGARG((png_structp png_ptr,
PNG_EXTERN void png_check_chunk_name PNGARG((png_structp png_ptr, PNG_EXTERN void png_check_chunk_name PNGARG((png_structp png_ptr,
png_bytep chunk_name)) PNG_PRIVATE; png_bytep chunk_name)) PNG_PRIVATE;
PNG_EXTERN void png_check_chunk_length PNGARG((png_structp png_ptr,
png_uint_32 chunk_length)) PNG_PRIVATE;
/* Handle the transformations for reading and writing */ /* Handle the transformations for reading and writing */
PNG_EXTERN void png_do_read_transformations PNG_EXTERN void png_do_read_transformations
PNGARG((png_structp png_ptr)) PNG_PRIVATE; PNGARG((png_structp png_ptr)) PNG_PRIVATE;

2
pngconf.h
View File

@ -1,7 +1,7 @@
/* pngconf.h - machine configurable file for libpng /* pngconf.h - machine configurable file for libpng
* *
* libpng version 1.0.67, December 29, 2016 * libpng version 1.0.68, August 24, 2017
* *
* Copyright (c) 1998-2015 Glenn Randers-Pehrson * Copyright (c) 1998-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngerror.c
View File

@ -1,7 +1,7 @@
/* pngerror.c - stub functions for i/o and memory allocation /* pngerror.c - stub functions for i/o and memory allocation
* *
* Last changed in libpng 1.2.57 [(TO BE RELEASED)] * Last changed in libpng 1.2.57 [December 29, 2016]
* Copyright (c) 1998-2002,2004,2006-2014,2016 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2014,2016 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

5
pngpread.c
View File

@ -1,8 +1,8 @@
/* pngpread.c - read a png file in push mode /* pngpread.c - read a png file in push mode
* *
* Last changed in libpng 1.2.57 [(TO BE RELEASED)] * Last changed in libpng 1.2.58 [August 24, 2017]
* Copyright (c) 1998-2002,2004,2006-2010,2016 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2015,2017 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
* *
@ -205,6 +205,7 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
png_reset_crc(png_ptr); png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4); png_crc_read(png_ptr, png_ptr->chunk_name, 4);
png_check_chunk_name(png_ptr, png_ptr->chunk_name); png_check_chunk_name(png_ptr, png_ptr->chunk_name);
png_check_chunk_length(png_ptr, png_ptr->push_length);
png_ptr->mode |= PNG_HAVE_CHUNK_HEADER; png_ptr->mode |= PNG_HAVE_CHUNK_HEADER;
} }

42
pngrutil.c
View File

@ -1,8 +1,8 @@
/* pngrutil.c - utilities to read a PNG file /* pngrutil.c - utilities to read a PNG file
* *
* Last changed in libpng 1.2.55 [December 6, 2015] * Last changed in libpng 1.2.58 [August 24, 2017]
* Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2015,2017 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
* *
@ -131,6 +131,9 @@ png_read_chunk_header(png_structp png_ptr)
/* Check to see if chunk name is valid */ /* Check to see if chunk name is valid */
png_check_chunk_name(png_ptr, png_ptr->chunk_name); png_check_chunk_name(png_ptr, png_ptr->chunk_name);
/* Check for too-large chunk length */
png_check_chunk_length(png_ptr, length);
return length; return length;
} }
@ -2506,6 +2509,41 @@ png_check_chunk_name(png_structp png_ptr, png_bytep chunk_name)
} }
} }
void /* PRIVATE */
png_check_chunk_length(png_structp png_ptr, png_uint_32 length)
{
png_uint_32 limit = PNG_UINT_31_MAX;
/* if (png_ptr->chunk_name != "IDAT") */
if (png_ptr->chunk_name[0] != 73 || png_ptr->chunk_name[1] !=68 ||
png_ptr->chunk_name[2] != 65 || png_ptr->chunk_name[3] !=84)
{
# if PNG_USER_CHUNK_MALLOC_MAX > 0
if (PNG_USER_CHUNK_MALLOC_MAX < limit)
limit = PNG_USER_CHUNK_MALLOC_MAX;
# endif
}
else
{
size_t row_factor =
(png_ptr->width * png_ptr->channels * (png_ptr->bit_depth > 8? 2: 1)
+ 1 + (png_ptr->interlaced? 6: 0));
if (png_ptr->height > PNG_UINT_32_MAX/row_factor)
limit=PNG_UINT_31_MAX;
else
limit = png_ptr->height * row_factor;
limit += 6 + 5*(limit/32566+1); /* zlib+deflate overhead */
limit=limit < PNG_UINT_31_MAX? limit : PNG_UINT_31_MAX;
}
if (length > limit)
{
png_debug2(0," length = %lu, limit = %lu",
(unsigned long)length,(unsigned long)limit);
png_chunk_error(png_ptr, "chunk data is too large");
}
}
/* Combines the row recently read in with the existing pixels in the /* Combines the row recently read in with the existing pixels in the
row. This routine takes care of alpha and transparency if requested. row. This routine takes care of alpha and transparency if requested.
This routine also handles the two methods of progressive display This routine also handles the two methods of progressive display

2
pngtest.c
View File

@ -1731,4 +1731,4 @@ main(int argc, char *argv[])
} }
/* Generate a compiler error if there is an old png.h in the search path. */ /* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_0_67 your_png_h_is_not_version_1_0_67; typedef version_1_0_68 your_png_h_is_not_version_1_0_68;

4
projects/wince.txt
View File

@ -1,6 +1,6 @@
A set of project files is available for WinCE. Get A set of project files is available for WinCE. Get
libpng-1.0.67-project-wince.zip from a libpng distribution libpng-1.0.68-project-wince.zip from a libpng distribution
site such as http://libpng.sourceforge.net/index.html site such as http://libpng.sourceforge.net/index.html
Put the zip file in this directory (projects) and then run Put the zip file in this directory (projects) and then run
"unzip -a libpng-1.0.67-project-wince.zip" "unzip -a libpng-1.0.68-project-wince.zip"

14
scripts/README.txt
View File

@ -1,8 +1,8 @@
Makefiles for libpng version 1.0.67 - December 29, 2016 Makefiles for libpng version 1.0.68 - August 24, 2017
makefile.linux => Linux/ELF makefile makefile.linux => Linux/ELF makefile
(gcc, creates libpng10.so.0.1.0.67) (gcc, creates libpng10.so.0.1.0.68)
makefile.gcc => Generic makefile (gcc, creates static libpng.a) makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with makefile.knr => Archaic UNIX Makefile that converts files with
ansi2knr (Requires ansi2knr.c from ansi2knr (Requires ansi2knr.c from
@ -20,7 +20,7 @@ Makefiles for libpng version 1.0.67 - December 29, 2016
makefile.dec => DEC Alpha UNIX makefile makefile.dec => DEC Alpha UNIX makefile
makefile.dj2 => DJGPP 2 makefile makefile.dj2 => DJGPP 2 makefile
makefile.elf => Linux/ELF makefile symbol versioning, makefile.elf => Linux/ELF makefile symbol versioning,
gcc, creates libpng10.so.0.1.0.67) gcc, creates libpng10.so.0.1.0.68)
makefile.freebsd => FreeBSD makefile makefile.freebsd => FreeBSD makefile
makefile.gcc => Generic gcc makefile makefile.gcc => Generic gcc makefile
makefile.gccmmx => Generic gcc makefile previously using MMX code makefile.gccmmx => Generic gcc makefile previously using MMX code
@ -38,14 +38,14 @@ Makefiles for libpng version 1.0.67 - December 29, 2016
makefile.os2 => OS/2 Makefile (gcc and emx, requires pngos2.def) makefile.os2 => OS/2 Makefile (gcc and emx, requires pngos2.def)
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
makefile.sggcc => Silicon Graphics (gcc, makefile.sggcc => Silicon Graphics (gcc,
creates libpng10.so.0.1.0.67) creates libpng10.so.0.1.0.68)
makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib) makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
makefile.solaris => Solaris 2.X makefile (gcc, makefile.solaris => Solaris 2.X makefile (gcc,
creates libpng10.so.0.1.0.67) creates libpng10.so.0.1.0.68)
makefile.solaris-x86 => Solaris 2.X makefile (gcc, no MMX code, makefile.solaris-x86 => Solaris 2.X makefile (gcc, no MMX code,
creates libpng10.so.0.1.0.67) creates libpng10.so.0.1.0.68)
makefile.so9 => Solaris 9 makefile (gcc, makefile.so9 => Solaris 9 makefile (gcc,
creates libpng10.so.0.1.0.67) creates libpng10.so.0.1.0.68)
makefile.std => Generic UNIX makefile (cc, creates static libpng.a) makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.sunos => Sun makefile makefile.sunos => Sun makefile
makefile.32sunu => Sun Ultra 32-bit makefile makefile.32sunu => Sun Ultra 32-bit makefile

2
scripts/libpng-config-head.in
View File

@ -11,7 +11,7 @@
# Modeled after libxml-config. # Modeled after libxml-config.
version=1.0.67 version=1.0.68
prefix="" prefix=""
libdir="" libdir=""
libs="" libs=""

2
scripts/libpng.pc.in
View File

@ -5,6 +5,6 @@ includedir=@includedir@/libpng10
Name: libpng Name: libpng
Description: Loads and saves PNG files Description: Loads and saves PNG files
Version: 1.0.67 Version: 1.0.68
Libs: -L${libdir} -lpng10 Libs: -L${libdir} -lpng10
Cflags: -I${includedir} Cflags: -I${includedir}

2
scripts/makefile.32sunu
View File

@ -11,7 +11,7 @@
# Library name: # Library name:
LIBNAME=libpng10 LIBNAME=libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/makefile.64sunu
View File

@ -11,7 +11,7 @@
# Library name: # Library name:
LIBNAME=libpng10 LIBNAME=libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/makefile.aix
View File

@ -23,7 +23,7 @@ LN_SF = ln -f -s
LIBNAME=libpng10 LIBNAME=libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
prefix=/usr/local prefix=/usr/local

2
scripts/makefile.beos
View File

@ -11,7 +11,7 @@
# Library name: # Library name:
LIBNAME=libpng10 LIBNAME=libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/makefile.cegcc
View File

@ -23,7 +23,7 @@
VERMAJ = 1 VERMAJ = 1
VERMIN = 0 VERMIN = 0
VERMIC = 67 VERMIC = 68
VER = $(VERMAJ).$(VERMIN).$(VERMIC) VER = $(VERMAJ).$(VERMIN).$(VERMIC)
NAME = libpng NAME = libpng
PACKAGE = $(NAME)-$(VER) PACKAGE = $(NAME)-$(VER)

2
scripts/makefile.cygwin
View File

@ -77,7 +77,7 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
LIBNAME = libpng10 LIBNAME = libpng10
PNGMAJ = 0 PNGMAJ = 0
CYGDLL = 10 CYGDLL = 10
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
SHAREDLIB=cygpng$(CYGDLL).dll SHAREDLIB=cygpng$(CYGDLL).dll

2
scripts/makefile.darwin
View File

@ -22,7 +22,7 @@ ZLIBINC=../zlib
# Library name: # Library name:
LIBNAME = libpng10 LIBNAME = libpng10
PNGMAJ = 10 PNGMAJ = 10
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/makefile.dec
View File

@ -8,7 +8,7 @@
# Library name: # Library name:
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng10 LIBNAME = libpng10

2
scripts/makefile.elf
View File

@ -16,7 +16,7 @@
# Library name: # Library name:
LIBNAME = libpng10 LIBNAME = libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/makefile.gcmmx
View File

@ -17,7 +17,7 @@
# Library name: # Library name:
LIBNAME = libpng10 LIBNAME = libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/makefile.hp64
View File

@ -21,7 +21,7 @@ ZLIBINC=/opt/zlib/include
# Library name: # Library name:
LIBNAME = libpng10 LIBNAME = libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/makefile.hpgcc
View File

@ -11,7 +11,7 @@
# Library name: # Library name:
LIBNAME = libpng10 LIBNAME = libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/makefile.hpux
View File

@ -21,7 +21,7 @@ ZLIBINC=/opt/zlib/include
# Library name: # Library name:
LIBNAME = libpng10 LIBNAME = libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/makefile.linux
View File

@ -10,7 +10,7 @@
# Library name: # Library name:
LIBNAME = libpng10 LIBNAME = libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/makefile.mingw
View File

@ -81,7 +81,7 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
LIBNAME = libpng10 LIBNAME = libpng10
PNGMAJ = 0 PNGMAJ = 0
MINGDLL = 10 MINGDLL = 10
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
SHAREDLIB=libpng$(MINGDLL).dll SHAREDLIB=libpng$(MINGDLL).dll

2
scripts/makefile.ne12bsd
View File

@ -17,7 +17,7 @@ INCSDIR=${LOCALBASE}/include/libpng10
LIB= png10 LIB= png10
SHLIB_MAJOR= 0 SHLIB_MAJOR= 0
SHLIB_MINOR= 1.0.67 SHLIB_MINOR= 1.0.68
SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \ SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \ pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
pngwtran.c pngmem.c pngerror.c pngpread.c pngwtran.c pngmem.c pngerror.c pngpread.c

2
scripts/makefile.netbsd
View File

@ -17,7 +17,7 @@ INCSDIR=${LOCALBASE}/include
LIB= png LIB= png
SHLIB_MAJOR= 3 SHLIB_MAJOR= 3
SHLIB_MINOR= 1.0.67 SHLIB_MINOR= 1.0.68
SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \ SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \ pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
pngwtran.c pngmem.c pngerror.c pngpread.c pngwtran.c pngmem.c pngerror.c pngpread.c

2
scripts/makefile.nommx
View File

@ -10,7 +10,7 @@
# Library name: # Library name:
LIBNAME = libpng10 LIBNAME = libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/makefile.openbsd
View File

@ -11,7 +11,7 @@ LIBDIR= ${PREFIX}/lib
MANDIR= ${PREFIX}/man/cat MANDIR= ${PREFIX}/man/cat
SHLIB_MAJOR= 0 SHLIB_MAJOR= 0
SHLIB_MINOR= 1.0.67 SHLIB_MINOR= 1.0.68
LIB= png LIB= png
SRCS= png.c pngerror.c pngget.c pngmem.c pngpread.c \ SRCS= png.c pngerror.c pngget.c pngmem.c pngpread.c \

2
scripts/makefile.sco
View File

@ -12,7 +12,7 @@
# Library name: # Library name:
LIBNAME = libpng10 LIBNAME = libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/makefile.sggcc
View File

@ -9,7 +9,7 @@
# Library name: # Library name:
LIBNAME=libpng10 LIBNAME=libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/makefile.sgi
View File

@ -9,7 +9,7 @@
# Library name: # Library name:
LIBNAME=libpng10 LIBNAME=libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/makefile.so9
View File

@ -11,7 +11,7 @@
# Library name: # Library name:
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng10 LIBNAME = libpng10

2
scripts/makefile.solaris
View File

@ -11,7 +11,7 @@
# Library name: # Library name:
LIBNAME = libpng10 LIBNAME = libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/makefile.solaris-x86
View File

@ -11,7 +11,7 @@
# Library name: # Library name:
LIBNAME = libpng10 LIBNAME = libpng10
PNGMAJ = 0 PNGMAJ = 0
PNGMIN = 1.0.67 PNGMIN = 1.0.68
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# Shared library names: # Shared library names:

2
scripts/png32ce.def
View File

@ -5,7 +5,7 @@
LIBRARY lpngce LIBRARY lpngce
EXPORTS EXPORTS
;Version 1.0.67 ;Version 1.0.68
png_build_grayscale_palette @1 png_build_grayscale_palette @1
png_check_sig @2 png_check_sig @2
png_chunk_error @3 png_chunk_error @3

2
scripts/pngos2.def
View File

@ -2,7 +2,7 @@
; PNG.LIB module definition file for OS/2 ; PNG.LIB module definition file for OS/2
;---------------------------------------- ;----------------------------------------
; Version 1.0.67 ; Version 1.0.68
LIBRARY PNG LIBRARY PNG
DESCRIPTION "PNG image compression library for OS/2" DESCRIPTION "PNG image compression library for OS/2"

2
scripts/pngw32.def
View File

@ -5,7 +5,7 @@
LIBRARY LIBRARY
EXPORTS EXPORTS
;Version 1.0.67 ;Version 1.0.68
png_build_grayscale_palette @1 png_build_grayscale_palette @1
png_check_sig @2 png_check_sig @2
png_chunk_error @3 png_chunk_error @3