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[libpng12] Changed PNG_USER_CHUNK_MALLOC_MAX from unlimited to 8,000,000.

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This can only be changed at library-build time.  It only
    affects the maximum memory that can be allocated to an
    ancillary chunk; it does not limit the size of IDAT
    data, which is instead limited by PNG_USER_WIDTH_MAX.
Display user limits in the output from pngtest.
This commit is contained in:
Glenn Randers-Pehrson 2015-02-21 13:56:53 -06:00
parent 41b240500f
commit 4d78519f99
4 changed files with 58 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
ANNOUNCE
View File

@ -1,5 +1,5 @@
Libpng 1.2.53rc01 - February 12, 2015
Libpng 1.2.53rc02 - February 21, 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.
@ -9,37 +9,37 @@ Files available for download:
Source files with LF line endings (for Unix/Linux) and with a
"configure" script
libpng-1.2.53rc01.tar.xz (LZMA-compressed, recommended)
libpng-1.2.53rc01.tar.gz
libpng-1.2.53rc01.tar.bz2
libpng-1.2.53rc02.tar.xz (LZMA-compressed, recommended)
libpng-1.2.53rc02.tar.gz
libpng-1.2.53rc02.tar.bz2
Source files with LF line endings (for Unix/Linux) without the
"configure" script
libpng-1.2.53rc01-no-config.tar.xz (LZMA-compressed, recommended)
libpng-1.2.53rc01-no-config.tar.gz
libpng-1.2.53rc01-no-config.tar.bz2
libpng-1.2.53rc02-no-config.tar.xz (LZMA-compressed, recommended)
libpng-1.2.53rc02-no-config.tar.gz
libpng-1.2.53rc02-no-config.tar.bz2
Source files with CRLF line endings (for Windows), without the
"configure" script
lp1253r01.zip
lp1253r01.7z
lp1253r01.tar.bz2
lp1253r02.zip
lp1253r02.7z
lp1253r02.tar.bz2
Project files
libpng-1.2.53rc01-project-netware.zip
libpng-1.2.53rc01-project-wince.zip
libpng-1.2.53rc02-project-netware.zip
libpng-1.2.53rc02-project-wince.zip
Other information:
libpng-1.2.53rc01-README.txt
libpng-1.2.53rc01-KNOWNBUGS.txt
libpng-1.2.53rc01-LICENSE.txt
libpng-1.2.53rc01-Y2K-compliance.txt
libpng-1.2.53rc01-[previous version]-diff.txt
libpng-1.2.53rc01-*.asc (armored detached GPG signatures)
libpng-1.2.53rc02-README.txt
libpng-1.2.53rc02-KNOWNBUGS.txt
libpng-1.2.53rc02-LICENSE.txt
libpng-1.2.53rc02-Y2K-compliance.txt
libpng-1.2.53rc02-[previous version]-diff.txt
libpng-1.2.53rc02-*.asc (armored detached GPG signatures)
Changes since the last public release (1.2.52):
@ -55,6 +55,14 @@ version 1.2.53beta02 [February 6, 2015]
version 1.2.53rc01 [February 12, 2015]
No changes.
version 1.2.53rc02 [February 21, 2015]
Display user limits in the output from pngtest.
Changed PNG_USER_CHUNK_MALLOC_MAX from unlimited to 8,000,000.
This can only be changed at library-build time. It only
affects the maximum memory that can be allocated to an
ancillary chunk; it does not limit the size of IDAT
data, which is instead limited by PNG_USER_WIDTH_MAX.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-implement

8
CHANGES
View File

@ -2840,6 +2840,14 @@ version 1.2.53beta02 [February 6, 2015]
version 1.2.53rc01 [February 12, 2015]
No changes.
version 1.2.53rc02 [February 21, 2015]
Display user limits in the output from pngtest.
Changed PNG_USER_CHUNK_MALLOC_MAX from unlimited to 8,000,000.
This can only be changed at library-build time. It only
affects the maximum memory that can be allocated to an
ancillary chunk; it does not limit the size of IDAT
data, which is instead limited by PNG_USER_WIDTH_MAX.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-implement

4
pngconf.h
View File

@ -1,7 +1,7 @@
/* pngconf.h - machine configurable file for libpng
*
* libpng version 1.2.53rc01 - February 12, 2015
* libpng version 1.2.53rc02 - February 21, 2015
* Copyright (c) 1998-2013 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.)
@ -885,7 +885,7 @@
/* Added at libpng-1.2.43 */
#ifndef PNG_USER_CHUNK_MALLOC_MAX
# define PNG_USER_CHUNK_MALLOC_MAX 0
# define PNG_USER_CHUNK_MALLOC_MAX 8000000
#endif
#ifndef PNG_LITERAL_SHARP

23
pngtest.c
View File

@ -1456,6 +1456,8 @@ main(int argc, char *argv[])
int multiple = 0;
int ierror = 0;
png_structp dummy_ptr;
fprintf(STDERR, "\n Testing libpng version %s\n", PNG_LIBPNG_VER_STRING);
fprintf(STDERR, " with zlib version %s\n", ZLIB_VERSION);
fprintf(STDERR, "%s", png_get_copyright(NULL));
@ -1698,8 +1700,27 @@ main(int argc, char *argv[])
fprintf(STDERR, " libpng passes test\n");
else
fprintf(STDERR, " libpng FAILS test\n");
dummy_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
fprintf(STDERR, " Default limits:\n");
fprintf(STDERR, " width_max = %lu\n",
(unsigned long) png_get_user_width_max(dummy_ptr));
fprintf(STDERR, " height_max = %lu\n",
(unsigned long) png_get_user_height_max(dummy_ptr));
if (PNG_USER_CHUNK_CACHE_MAX == 0)
fprintf(STDERR, " cache_max = unlimited\n");
else
fprintf(STDERR, " cache_max = %lu\n",
(unsigned long) PNG_USER_CHUNK_CACHE_MAX);
if (PNG_USER_CHUNK_MALLOC_MAX == 0)
fprintf(STDERR, " malloc_max = unlimited\n");
else
fprintf(STDERR, " malloc_max = %lu\n",
(unsigned long) PNG_USER_CHUNK_MALLOC_MAX);
png_destroy_read_struct(&dummy_ptr, NULL, NULL);
return (int)(ierror != 0);
}
/* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_2_53rc01 your_png_h_is_not_version_1_2_53rc01;
typedef version_1_2_53rc02 your_png_h_is_not_version_1_2_53rc02;