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[cff, truetype] Fix logic for `FT_Property_Set'. 

Otherwise some properties could be set to arbitrary values, which is
harmless, but querying could give wrong positive results.

* src/cff/cffdrivr.c (cff_property_set) [hinting-engine],
* src/truetype/ttdriver.c (tt_property_set) [interpreter-version]:
Only allow defined values.
This commit is contained in:
Werner Lemberg 2016-05-05 12:28:48 +02:00
parent 22167629d1
commit 0b3cb8a8af
3 changed files with 23 additions and 8 deletions
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11
ChangeLog
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@ -1,3 +1,14 @@
2016-05-05 Werner Lemberg <wl@gnu.org>
[cff, truetype] Fix logic for `FT_Property_Set'.
Otherwise some properties could be set to arbitrary values, which is
harmless, but querying could give wrong positive results.
* src/cff/cffdrivr.c (cff_property_set) [hinting-engine],
* src/truetype/ttdriver.c (tt_property_set) [interpreter-version]:
Only allow defined values.
2016-04-25 Werner Lemberg <wl@gnu.org>
[autofit] Add blue-zone support for Gujarati script.

10
src/cff/cffdrivr.c
View File

@ -701,12 +701,14 @@
FT_UInt* hinting_engine = (FT_UInt*)value;
#ifndef CFF_CONFIG_OPTION_OLD_ENGINE
if ( *hinting_engine != FT_CFF_HINTING_ADOBE )
error = FT_ERR( Unimplemented_Feature );
else
if ( *hinting_engine == FT_CFF_HINTING_ADOBE
#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
|| *hinting_engine == FT_CFF_HINTING_FREETYPE
#endif
)
driver->hinting_engine = *hinting_engine;
else
error = FT_ERR( Unimplemented_Feature );
return error;
}

10
src/truetype/ttdriver.c
View File

@ -72,12 +72,14 @@
FT_UInt* interpreter_version = (FT_UInt*)value;
#ifndef TT_CONFIG_OPTION_SUBPIXEL_HINTING
if ( *interpreter_version != TT_INTERPRETER_VERSION_35 )
error = FT_ERR( Unimplemented_Feature );
else
if ( *interpreter_version == TT_INTERPRETER_VERSION_35
#ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
|| *interpreter_version == TT_INTERPRETER_VERSION_38
#endif
)
driver->interpreter_version = *interpreter_version;
else
error = FT_ERR( Unimplemented_Feature );
return error;
}