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[libpng17] Eliminated the PNG_SAFE_LIMITS macro and set default limits in

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pnglibconf.dfa, that can be reset by the user at build time or run time.
This provides a more robust defense against DOS and as-yet undiscovered
overflows.
This commit is contained in:
Glenn Randers-Pehrson
2014-12-23 22:13:40 -06:00
parent 38d22ef928
commit eeab1cfefc
6 changed files with 38 additions and 61 deletions
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11
pngusr.dfa
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@@ -4,11 +4,12 @@
#
# Enter build configuration options in this file
#
# Security settings: by default these limits are unset, you can change them
# here by entering the appropriate values as #defines preceded by '@' (to cause,
# them to be passed through to the build of pnglibconf.h), for example:
# Security settings: these limits have default values that are set in
# scripts/pnglibconf.dfa; you can change them here by entering the
# appropriate values as #defines preceded by '@' (to cause them
# to be passed through to the build of pnglibconf.h), for example:
#
# @# define PNG_USER_WIDTH_MAX 1000000
# @# define PNG_USER_HEIGHT_MAX 1000000
# @# define PNG_USER_CHUNK_CACHE_MAX 128
# @# define PNG_USER_CHUNK_MALLOC_MAX 8000000
# @# define PNG_USER_CHUNK_CACHE_MAX 256
# @# define PNG_USER_CHUNK_MALLOC_MAX 4000000