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* src/sfnt/ttcmap0.c (tt_cmap4_validate): Provide a weak variant 

of the glyph ID bounding check if FT_VALIDATE_TIGHT is not active.
Without this change, many CJK fonts from Dynalab are rejected.
This commit is contained in:
Werner Lemberg 2003-04-23 18:21:48 +00:00
parent 8b61525b9a
commit 13c4a4f171
2 changed files with 19 additions and 4 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2003-04-23 Akito Hirai <akito@kde.gr.jp>
* src/sfnt/ttcmap0.c (tt_cmap4_validate): Provide a weak variant
of the glyph ID bounding check if FT_VALIDATE_TIGHT is not active.
Without this change, many CJK fonts from Dynalab are rejected.
2003-04-23 Joe Marcus Clarke <marcus@FreeBSD.org>
* src/base/ftbdf.c (FT_Get_BDF_Property): Check for valid

17
src/sfnt/ttcmap0.c
View File

@ -4,7 +4,7 @@
/* */
/* TrueType new character mapping table (cmap) support (body). */
/* */
/* Copyright 2002 by */
/* Copyright 2002, 2003 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -701,9 +701,18 @@
p += offset; /* start of glyph id array */
/* check that we point within the glyph ids table only */
if ( p < glyph_ids ||
p + ( end - start + 1 ) * 2 > table + length )
FT_INVALID_DATA;
if ( valid->level >= FT_VALIDATE_TIGHT )
{
if ( p < glyph_ids ||
p + ( end - start + 1 ) * 2 > table + length )
FT_INVALID_DATA;
}
else
{
if ( p < glyph_ids ||
p + ( end - start + 1 ) * 2 > valid->limit )
FT_INVALID_DATA;
}
/* check glyph indices within the segment range */
if ( valid->level >= FT_VALIDATE_TIGHT )