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[libng15] Issue a png_benign_error() instead of png_warning() about bad palette

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This commit is contained in:
Glenn Randers-Pehrson 2012-03-10 08:14:49 -06:00
parent 0ff5150f91
commit 1ca16d92f2
6 changed files with 12 additions and 6 deletions
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4
ANNOUNCE
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@ -48,7 +48,8 @@ Version 1.5.10beta02 [February 27, 2012]
Version 1.5.10beta03 [March 6, 2012]
Removed unused "current_text" members of png_struct and the png_free()
of png_ptr->current_text from pngread.c
Added palette-index checking.
Added palette-index checking. Issue a png_warning() if an invalid index is
found.
Version 1.5.10beta04 [March 10, 2012]
Fixed PNG_LIBPNG_BUILD_BASE_TYPE definition.
@ -57,6 +58,7 @@ Version 1.5.10beta04 [March 10, 2012]
Version 1.5.10beta05 [March 10, 2012]
Reject all iCCP chunks after the first, even if the first one is invalid.
Issue a png_benign_error() instead of png_warning() about bad palette index.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net:
(subscription required; visit

4
CHANGES
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@ -3833,7 +3833,8 @@ Version 1.5.10beta02 [February 27, 2012]
Version 1.5.10beta03 [March 6, 2012]
Removed unused "current_text" members of png_struct and the png_free()
of png_ptr->current_text from pngread.c
Added palette-index checking.
Added palette-index checking. Issue a png_warning() if an invalid index is
found.
Version 1.5.10beta04 [March 10, 2012]
Fixed PNG_LIBPNG_BUILD_BASE_TYPE definition.
@ -3842,6 +3843,7 @@ Version 1.5.10beta04 [March 10, 2012]
Version 1.5.10beta05 [March 10, 2012]
Reject all iCCP chunks after the first, even if the first one is invalid.
Issue a png_benign_error() instead of png_warning() about bad palette index.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

3
libpng-manual.txt
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@ -4143,7 +4143,8 @@ From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the
function) incorrectly returned a value of type png_uint_32.
Checking for invalid palette index on read or write was added at libpng
1.5.10. This is enabled by default but can be disabled in each png_ptr with
1.5.10. When an invalid index is found, libpng issues a benign error.
This is enabled by default but can be disabled in each png_ptr with
png_set_check_for_invalid_index(png_ptr, allowed);

3
libpng.3
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@ -5125,7 +5125,8 @@ From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the
function) incorrectly returned a value of type png_uint_32.
Checking for invalid palette index on read or write was added at libpng
1.5.10. This is enabled by default but can be disabled in each png_ptr with
1.5.10. When an invalid index is found, libpng issues a benign error.
This is enabled by default but can be disabled in each png_ptr with
png_set_check_for_invalid_index(png_ptr, allowed);

2
pngread.c
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@ -805,7 +805,7 @@ png_read_end(png_structp png_ptr, png_infop info_ptr)
/* Report invalid palette index; added at libng-1.5.10 */
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
png_ptr->num_palette_max > png_ptr->num_palette)
png_warning(png_ptr, "Read palette index exceeding num_palette");
png_benign_error(png_ptr, "Read palette index exceeding num_palette");
#endif
do

2
pngwrite.c
View File

@ -307,7 +307,7 @@ png_write_end(png_structp png_ptr, png_infop info_ptr)
#ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
if (png_ptr->num_palette_max > png_ptr->num_palette)
png_warning(png_ptr, "Wrote palette index exceeding num_palette");
png_benign_error(png_ptr, "Wrote palette index exceeding num_palette");
#endif
/* See if user wants us to write information chunks */