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Fix PFR change 2010-06-24. 

* src/pfr/pfrgload.c (pfr_glyph_load_simple): Really protect against
invalid indices.
This commit is contained in:
Werner Lemberg 2010-06-27 00:43:23 +02:00
parent 91ea0bf80d
commit 1c70fcbc0a
2 changed files with 13 additions and 6 deletions
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7
ChangeLog
View File

@ -1,3 +1,10 @@
2010-06-26 Werner Lemberg <wl@gnu.org>
Fix PFR change 2010-06-24.
* src/pfr/pfrgload.c (pfr_glyph_load_simple): Really protect against
invalid indices.
2010-06-26 Werner Lemberg <wl@gnu.org>
Improve PFR tracing messages.

12
src/pfr/pfrgload.c
View File

@ -268,8 +268,8 @@
{
PFR_CHECK( 1 );
count = PFR_NEXT_BYTE( p );
x_count = ( count & 15 );
y_count = ( count >> 4 );
x_count = count & 15;
y_count = count >> 4;
}
else
{
@ -388,7 +388,7 @@
case 2: /* horizontal line to */
FT_TRACE6(( "- horizontal line to cx.%d", format_low ));
if ( format_low > x_count || x_count == 0 )
if ( format_low >= x_count )
goto Failure;
pos[0].x = glyph->x_control[format_low];
pos[0].y = pos[3].y;
@ -398,7 +398,7 @@
case 3: /* vertical line to */
FT_TRACE6(( "- vertical line to cy.%d", format_low ));
if ( format_low > y_count || y_count == 0 )
if ( format_low >= y_count )
goto Failure;
pos[0].x = pos[3].x;
pos[0].y = glyph->y_control[format_low];
@ -440,7 +440,7 @@
case 0: /* 8-bit index */
PFR_CHECK( 1 );
idx = PFR_NEXT_BYTE( p );
if ( idx > x_count || x_count == 0 )
if ( idx >= x_count )
goto Failure;
cur->x = glyph->x_control[idx];
FT_TRACE7(( " cx#%d", idx ));
@ -470,7 +470,7 @@
case 0: /* 8-bit index */
PFR_CHECK( 1 );
idx = PFR_NEXT_BYTE( p );
if ( idx > y_count || y_count == 0 )
if ( idx >= y_count )
goto Failure;
cur->y = glyph->y_control[idx];
FT_TRACE7(( " cy#%d", idx ));