* src/type1/t1afm.c (T1_Read_PFM): Zero offset means `no kerning

ChangeLog

@@ -1,3 +1,8 @@
+2005-11-07  Werner Lemberg  <wl@gnu.org>
+
+	* src/type1/t1afm.c (T1_Read_PFM): Zero offset means `no kerning
+	table available'.  From Sergey Tolstov <stolstov@esri.com>.
+
 2005-11-03  Ville Syrjälä  <syrjala@sci.fi>
 
 	* src/base/ftobjs.c (FT_Open_Face): Avoid possible memory leak.

src/type1/t1afm.c

@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    AFM support for Type 1 fonts (body).                                 */
 /*                                                                         */
-/*  Copyright 1996-2001, 2002, 2003, 2004 by                               */
+/*  Copyright 1996-2001, 2002, 2003, 2004, 2005 by                         */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -285,6 +285,11 @@
     /* Kerning offset is 14 bytes from start of extensions table. */
     p += 14;
     p = start + LITTLE_ENDIAN_UINT( p );
+
+    if ( p == start )
+      /* zero offset means no table */
+      goto Exit;
+
     if ( p + 2 > limit )
     {
       error = T1_Err_Unknown_File_Format;