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Fix problem with T1_FIELD_{NUM,FIXED}_TABLE2.

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* src/psaux/psobjs.c (ps_parser_load_field_table): Don't handle
`count_offset' if it is zero (i.e., unused).  Otherwise, the first
element of the structure which holds the data is erroneously
modified.  Problem reported by Chi Nguyen <chint@necsv.com>.
This commit is contained in:
Werner Lemberg 2009-01-09 07:58:08 +00:00
parent a7c00b79e0
commit 9d83d29028
3 changed files with 19 additions and 5 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2009-01-09 Werner Lemberg <wl@gnu.org>
Fix problem with T1_FIELD_{NUM,FIXED}_TABLE2.
* src/psaux/psobjs.c (ps_parser_load_field_table): Don't handle
`count_offset' if it is zero (i.e., unused). Otherwise, the first
element of the structure which holds the data is erroneously
modified. Problem reported by Chi Nguyen <chint@necsv.com>.
2009-01-09 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
* src/base/ftadvanc.c (_ft_face_scale_advances, FT_Get_Advance,

8
include/freetype/internal/psaux.h
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@ -5,7 +5,7 @@
/* Auxiliary functions and data structures related to PostScript fonts */
/* (specification). */
/* */
/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2008 by */
/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2008, 2009 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -227,7 +227,11 @@ FT_BEGIN_HEADER
FT_UInt array_max; /* maximal number of elements for */
/* array */
FT_UInt count_offset; /* offset of element count for */
/* arrays */
/* arrays; must not be zero if in */
/* use -- in other words, a */
/* `num_FOO' element must not */
/* start the used structure if we */
/* parse a `FOO' array */
FT_UInt dict; /* where we expect it */
} T1_FieldRec;

7
src/psaux/psobjs.c
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@ -4,7 +4,7 @@
/* */
/* Auxiliary functions for PostScript fonts (body). */
/* */
/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by */
/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -1265,8 +1265,9 @@
old_cursor = parser->cursor;
old_limit = parser->limit;
/* we store the elements count if necessary */
if ( field->type != T1_FIELD_TYPE_BBOX )
/* we store the elements count if necessary; */
/* we further assume that `count_offset' can't be zero */
if ( field->type != T1_FIELD_TYPE_BBOX && field->count_offset != 0 )
*(FT_Byte*)( (FT_Byte*)objects[0] + field->count_offset ) =
(FT_Byte)num_elements;