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812c34c13c
nocompile-limits.dfa: turns off all limits including run-time limits
nolimits.dfa: makes the compile time limits unlimited while leaving on
the run-time limits.
Fixes compiler warnings exposed by these tests. These are just warnings,
there were no bugs other than a failure to handle systems with a 16-bit
at the appropriate time which would result in a later failure on malloc.
png.c: png_icc_check_length: in-line code was still used in place of
png_chunk_max when checking the current chunk allocation limit. The
in-line code did not handle PNG_MAXSEG_64K and, anyway, issued
compiler warnings in the 'nocompile-limits' case. Changed to use
png_malloc_max.
pngrutil.c: eliminated an erroneous 'truncation' warning with GCC-14 by
using a safe cast.
pngtest.c: failed to check for PNG_USER_LIMITS_SUPPORTED around API
calls which don't exist without PNG_USER_LIMITS.
Signed-off-by: John Bowler <jbowler@acm.org>
22 lines
682 B
Plaintext
22 lines
682 B
Plaintext
# nolimits.dfa
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# Build time configuration of libpng
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#
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# Author: John Bowler
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# Copyright: (c) John Bowler, 2025
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#
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# Usage rights:
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# To the extent possible under law, the author has waived all copyright and
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# related or neighboring rights to this work. This work is published from:
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# United States.
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#
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# Build libpng without any limits and without run-time settable limits. Turning
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# USER_LIMITS off reduces libpng code size by allowing compile-time elimination
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# of some checking code.
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#
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option USER_LIMITS off
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@# define PNG_USER_WIDTH_MAX PNG_UINT_31_MAX
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@# define PNG_USER_HEIGHT_MAX PNG_UINT_31_MAX
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@# define PNG_USER_CHUNK_CACHE_MAX 0
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@# define PNG_USER_CHUNK_MALLOC_MAX 0
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