[sfnt] Restrict POST version 1.0.
A font has surfaced with `post` version 1.0 and fewer than 258 glyphs. Its glyphs did not correspond to their names. We now reject such `post` strictly following specifications. * src/sfnt/ttpost.c (tt_face_get_ps_name): Check the number of glyphs for version 1.0.
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@ -436,13 +436,8 @@
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format = face->postscript.FormatType;
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format = face->postscript.FormatType;
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if ( format == 0x00010000L )
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if ( format == 0x00020000L ||
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{
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format == 0x00025000L )
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if ( idx < 258 ) /* paranoid checking */
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*PSname = MAC_NAME( idx );
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}
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else if ( format == 0x00020000L ||
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format == 0x00025000L )
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{
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{
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TT_Post_Names names = &face->postscript_names;
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TT_Post_Names names = &face->postscript_names;
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@ -466,6 +461,11 @@
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}
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}
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}
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}
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/* version 1.0 is only valid with 258 glyphs */
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else if ( format == 0x00010000L &&
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face->max_profile.numGlyphs == 258 )
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*PSname = MAC_NAME( idx );
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/* nothing to do for format == 0x00030000L */
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/* nothing to do for format == 0x00030000L */
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End:
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End:
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