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* src/sfnt/ttload.c (TT_LookUp_Table): Protect against tables 

with a zero length value.

* builds/beos/beos.mk: Include `link-std.mk'.

* src/type1/t1load.h (T1_Loader): Renamed to...
(T1_LoaderRec): This.
(T1_Loader): Now pointer to T1_LoaderRec.
* src/type1/t1load.c: Updated.

* include/freetype/internal/t1types.h, src/type1/t1load.c,
src/type1/t1objs.c:
s/T1_ENCODING_TYPE_EXPORT/T1_ENCODING_TYPE_EXPERT/.
This commit is contained in:
Werner Lemberg 2002-05-12 19:59:17 +00:00
parent 95fcaf8df7
commit bd889e5de9
8 changed files with 105 additions and 80 deletions
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20
ChangeLog
View File

@ -1,3 +1,23 @@
2002-05-12 Owen Taylor <otaylor@redhat.com>
* src/sfnt/ttload.c (TT_LookUp_Table): Protect against tables
with a zero length value.
2002-05-12 Michael Pfeiffer <michael.pfeiffer@utanet.at>
* builds/beos/beos.mk: Include `link-std.mk'.
2002-05-12 Werner Lemberg <wl@gnu.org>
* src/type1/t1load.h (T1_Loader): Renamed to...
(T1_LoaderRec): This.
(T1_Loader): Now pointer to T1_LoaderRec.
* src/type1/t1load.c: Updated.
* include/freetype/internal/t1types.h, src/type1/t1load.c,
src/type1/t1objs.c:
s/T1_ENCODING_TYPE_EXPORT/T1_ENCODING_TYPE_EXPERT/.
2002-05-06 Werner Lemberg <wl@gnu.org>
* README: Add a note regarding libttf vs. libfreetype.

3
builds/beos/beos.mk
View File

@ -2,7 +2,7 @@
# FreeType 2 configuration rules for a BeOS system
#
# Copyright 1996-2000 by
# Copyright 1996-2000, 2002 by
# David Turner, Robert Wilhelm, and Werner Lemberg.
#
# This file is part of the FreeType project, and may only be used, modified,
@ -13,6 +13,7 @@
include $(TOP)/builds/compiler/ansi-cc.mk
include $(TOP)/builds/beos/beos-def.mk
include $(TOP)/builds/link_std.mk
# EOF

2
include/freetype/internal/t1types.h
View File

@ -81,7 +81,7 @@ FT_BEGIN_HEADER
T1_ENCODING_TYPE_ARRAY,
T1_ENCODING_TYPE_STANDARD,
T1_ENCODING_TYPE_ISOLATIN1,
T1_ENCODING_TYPE_EXPORT
T1_ENCODING_TYPE_EXPERT
} T1_EncodingType;

4
src/sfnt/ttload.c
View File

@ -73,7 +73,9 @@
for ( ; entry < limit; entry++ )
{
if ( entry->Tag == tag )
/* For compatibility with Windows, we consider 0-length */
/* tables the same as missing tables. */
if ( entry->Tag == tag && entry->Length != 0 )
{
FT_TRACE3(( "found table.\n" ));
return entry;

4
src/type1/t1driver.c
View File

@ -445,8 +445,8 @@
const char* gname = face->type1.glyph_names[n];
if ( gname && gname[0] == glyph_name[0] &&
ft_strcmp( gname, glyph_name ) == 0 )
if ( gname && gname[0] == glyph_name[0] &&
ft_strcmp( gname, glyph_name ) == 0 )
return charcode;
}
}

121
src/type1/t1load.c
View File

@ -378,8 +378,8 @@
static void
parse_blend_axis_types( T1_Face face,
T1_Loader* loader )
parse_blend_axis_types( T1_Face face,
T1_Loader loader )
{
T1_TokenRec axis_tokens[ T1_MAX_MM_AXIS ];
FT_Int n, num_axis;
@ -440,8 +440,8 @@
static void
parse_blend_design_positions( T1_Face face,
T1_Loader* loader )
parse_blend_design_positions( T1_Face face,
T1_Loader loader )
{
T1_TokenRec design_tokens[ T1_MAX_MM_DESIGNS ];
FT_Int num_designs;
@ -522,8 +522,8 @@
static void
parse_blend_design_map( T1_Face face,
T1_Loader* loader )
parse_blend_design_map( T1_Face face,
T1_Loader loader )
{
FT_Error error = 0;
T1_Parser parser = &loader->parser;
@ -603,8 +603,8 @@
static void
parse_weight_vector( T1_Face face,
T1_Loader* loader )
parse_weight_vector( T1_Face face,
T1_Loader loader )
{
FT_Error error = 0;
T1_Parser parser = &loader->parser;
@ -655,8 +655,8 @@
/* of spec!); we detect it and terminate the parsing */
/* */
static void
parse_shared_dict( T1_Face face,
T1_Loader* loader )
parse_shared_dict( T1_Face face,
T1_Loader loader )
{
T1_Parser parser = &loader->parser;
@ -688,15 +688,15 @@
static FT_Error
t1_load_keyword( T1_Face face,
T1_Loader* loader,
T1_Field field )
t1_load_keyword( T1_Face face,
T1_Loader loader,
T1_Field field )
{
FT_Error error;
void* dummy_object;
void** objects;
FT_UInt max_objects;
PS_Blend blend = face->blend;
FT_Error error;
void* dummy_object;
void** objects;
FT_UInt max_objects;
PS_Blend blend = face->blend;
/* if the keyword has a dedicated callback, call it */
@ -767,7 +767,11 @@
/* Note: we must accept "+" as a valid character, as it is used in */
/* embedded type1 fonts in PDF documents. */
/* */
return ( ft_isalnum( c ) || c == '.' || c == '_' || c == '-' || c == '+' );
return ( ft_isalnum( c ) ||
c == '.' ||
c == '_' ||
c == '-' ||
c == '+' );
}
@ -814,8 +818,8 @@
/* dictionaries */
static void
parse_font_name( T1_Face face,
T1_Loader* loader )
parse_font_name( T1_Face face,
T1_Loader loader )
{
T1_Parser parser = &loader->parser;
FT_Error error;
@ -860,8 +864,8 @@
static void
parse_font_bbox( T1_Face face,
T1_Loader* loader )
parse_font_bbox( T1_Face face,
T1_Loader loader )
{
T1_Parser parser = &loader->parser;
FT_Fixed temp[4];
@ -877,8 +881,8 @@
static void
parse_font_matrix( T1_Face face,
T1_Loader* loader )
parse_font_matrix( T1_Face face,
T1_Loader loader )
{
T1_Parser parser = &loader->parser;
FT_Matrix* matrix = &face->type1.font_matrix;
@ -889,7 +893,7 @@
if ( matrix->xx || matrix->yx )
/* with synthetic fonts, it's possible we get here twice */
/* with synthetic fonts, it's possible we get here twice */
return;
(void)T1_ToFixedArray( parser, 6, temp, 3 );
@ -926,8 +930,8 @@
static void
parse_encoding( T1_Face face,
T1_Loader* loader )
parse_encoding( T1_Face face,
T1_Loader loader )
{
T1_Parser parser = &loader->parser;
FT_Byte* cur = parser->root.cursor;
@ -973,13 +977,13 @@
if ( FT_NEW_ARRAY( encode->char_index, count ) ||
FT_NEW_ARRAY( encode->char_name, count ) ||
FT_SET_ERROR( psaux->ps_table_funcs->init(
char_table, count, memory ) ) )
char_table, count, memory ) ) )
{
parser->root.error = error;
return;
}
/* We need to `zero' out encoding_table.elements */
/* We need to `zero' out encoding_table.elements */
for ( n = 0; n < count; n++ )
{
char* notdef = (char *)".notdef";
@ -1015,10 +1019,10 @@
/* we stop when we encounter a `def' */
if ( c == 'd' && cur + 3 < limit )
{
if ( cur[1] == 'e' &&
cur[2] == 'f' &&
is_space(cur[-1]) &&
is_space(cur[3]) )
if ( cur[1] == 'e' &&
cur[2] == 'f' &&
is_space( cur[-1] ) &&
is_space( cur[3] ) )
{
FT_TRACE6(( "encoding end\n" ));
break;
@ -1033,7 +1037,7 @@
parser->root.cursor = cur;
charcode = T1_ToInt( parser );
cur = parser->root.cursor;
cur = parser->root.cursor;
/* skip whitespace */
while ( cur < limit && is_space( *cur ) )
@ -1068,19 +1072,19 @@
face->type1.encoding_type = T1_ENCODING_TYPE_ARRAY;
parser->root.cursor = cur;
}
/* Otherwise, we should have either `StandardEncoding' or */
/* `ExpertEncoding' */
/* Otherwise, we should have either `StandardEncoding', */
/* `ExpertEncoding', or `ISOLatin1Encoding' */
else
{
if ( cur + 17 < limit &&
if ( cur + 17 < limit &&
ft_strncmp( (const char*)cur, "StandardEncoding", 16 ) == 0 )
face->type1.encoding_type = T1_ENCODING_TYPE_STANDARD;
else if ( cur + 15 < limit &&
else if ( cur + 15 < limit &&
ft_strncmp( (const char*)cur, "ExpertEncoding", 14 ) == 0 )
face->type1.encoding_type = T1_ENCODING_TYPE_EXPORT;
face->type1.encoding_type = T1_ENCODING_TYPE_EXPERT;
else if ( cur + 18 < limit &&
else if ( cur + 18 < limit &&
ft_strncmp( (const char*)cur, "ISOLatin1Encoding", 17 ) == 0 )
face->type1.encoding_type = T1_ENCODING_TYPE_ISOLATIN1;
@ -1094,8 +1098,8 @@
static void
parse_subrs( T1_Face face,
T1_Loader* loader )
parse_subrs( T1_Face face,
T1_Loader loader )
{
T1_Parser parser = &loader->parser;
PS_Table table = &loader->subrs;
@ -1191,8 +1195,8 @@
static void
parse_charstrings( T1_Face face,
T1_Loader* loader )
parse_charstrings( T1_Face face,
T1_Loader loader )
{
T1_Parser parser = &loader->parser;
PS_Table code_table = &loader->charstrings;
@ -1241,8 +1245,8 @@
if ( error )
goto Fail;
n = 0;
for (;;)
{
FT_Int size;
@ -1479,10 +1483,10 @@
static FT_Error
parse_dict( T1_Face face,
T1_Loader* loader,
FT_Byte* base,
FT_Long size )
parse_dict( T1_Face face,
T1_Loader loader,
FT_Byte* base,
FT_Long size )
{
T1_Parser parser = &loader->parser;
@ -1499,7 +1503,7 @@
for ( ; cur < limit; cur++ )
{
/* look for `FontDirectory', which causes problems on some fonts */
if ( *cur == 'F' && cur + 25 < limit &&
if ( *cur == 'F' && cur + 25 < limit &&
ft_strncmp( (char*)cur, "FontDirectory", 13 ) == 0 )
{
FT_Byte* cur2;
@ -1596,8 +1600,8 @@
static void
t1_init_loader( T1_Loader* loader,
T1_Face face )
t1_init_loader( T1_Loader loader,
T1_Face face )
{
FT_UNUSED( face );
@ -1616,7 +1620,7 @@
static void
t1_done_loader( T1_Loader* loader )
t1_done_loader( T1_Loader loader )
{
T1_Parser parser = &loader->parser;
@ -1636,7 +1640,7 @@
FT_LOCAL_DEF( FT_Error )
T1_Open_Face( T1_Face face )
{
T1_Loader loader;
T1_LoaderRec loader;
T1_Parser parser;
T1_Font type1 = &face->type1;
FT_Error error;
@ -1701,8 +1705,7 @@
loader.glyph_names.block = 0;
loader.glyph_names.elements = 0;
/* we must now build type1.encoding when we have a custom */
/* array.. */
/* we must now build type1.encoding when we have a custom array */
if ( type1->encoding_type == T1_ENCODING_TYPE_ARRAY )
{
FT_Int charcode, idx, min_char, max_char;
@ -1740,8 +1743,8 @@
if ( ft_strcmp( (const char*)".notdef",
(const char*)glyph_name ) != 0 )
{
if (charcode < min_char) min_char = charcode;
if (charcode > max_char) max_char = charcode;
if ( charcode < min_char ) min_char = charcode;
if ( charcode > max_char ) max_char = charcode;
}
break;
}

2
src/type1/t1load.h
View File

@ -48,7 +48,7 @@ FT_BEGIN_HEADER
PS_TableRec subrs;
FT_Bool fontdata;
} T1_Loader;
} T1_LoaderRec, *T1_Loader;
FT_LOCAL( FT_Error )

29
src/type1/t1objs.c
View File

@ -327,10 +327,9 @@
root->num_glyphs = face->type1.num_glyphs;
root->face_index = face_index;
root->face_flags = FT_FACE_FLAG_SCALABLE;
root->face_flags |= FT_FACE_FLAG_HORIZONTAL;
root->face_flags |= FT_FACE_FLAG_GLYPH_NAMES;
if ( face->type1.font_info.is_fixed_pitch )
@ -432,28 +431,28 @@
{
FT_Face root = &face->root;
if ( psnames && psaux )
{
FT_CharMapRec charmap;
T1_CMap_Classes cmap_classes = psaux->t1_cmap_classes;
FT_CMap_Class clazz;
charmap.face = root;
/* first of all, try to synthetize a Unicode charmap */
charmap.platform_id = 3;
charmap.encoding_id = 1;
charmap.encoding = ft_encoding_unicode;
FT_CMap_New( cmap_classes->unicode, NULL, &charmap, NULL );
/* now, generate an Adobe Standard encoding when appropriate */
charmap.platform_id = 7;
clazz = NULL;
switch ( face->type1.encoding_type )
{
case T1_ENCODING_TYPE_STANDARD:
@ -461,29 +460,29 @@
charmap.encoding_id = 0;
clazz = cmap_classes->standard;
break;
case T1_ENCODING_TYPE_EXPORT:
case T1_ENCODING_TYPE_EXPERT:
charmap.encoding = ft_encoding_adobe_expert;
charmap.encoding_id = 1;
clazz = cmap_classes->expert;
break;
case T1_ENCODING_TYPE_ARRAY:
charmap.encoding = ft_encoding_adobe_custom;
charmap.encoding_id = 2;
clazz = cmap_classes->custom;
break;
case T1_ENCODING_TYPE_ISOLATIN1:
charmap.encoding = ft_encoding_latin_1;
charmap.encoding_id = 3;
clazz = cmap_classes->unicode;
break;
default:
;
}
if ( clazz )
FT_CMap_New( clazz, NULL, &charmap, NULL );
}
@ -535,7 +534,7 @@
charmap->encoding_id = 0;
break;
case T1_ENCODING_TYPE_EXPORT:
case T1_ENCODING_TYPE_EXPERT:
charmap->encoding = ft_encoding_adobe_expert;
charmap->encoding_id = 1;
break;