[gs-cvs] rev 7628 - trunk/gs/src

[leonardo at ghostscript.com]

Author: leonardo
Date: 2007-01-21 01:36:41 -0800 (Sun, 21 Jan 2007)
New Revision: 7628

Modified:
   trunk/gs/src/gxhintn.c
Log:
Fix (Type 1 hinter) A crash while recognizing a missed flex.

DETAILS :

Bug 688931 "gs segfaults in t1_hinter__fix_missed_flex".

The old code didn't check whether a contour has
enough poles for flex.

EXPECTED DIFFERENCES :

None.


Modified: trunk/gs/src/gxhintn.c
===================================================================
--- trunk/gs/src/gxhintn.c	2007-01-21 09:35:30 UTC (rev 7627)
+++ trunk/gs/src/gxhintn.c	2007-01-21 09:36:41 UTC (rev 7628)
@@ -1140,7 +1140,7 @@
 	return;
     contour_beg = this->contour[this->contour_count -1];
     contour_end = this->pole_count - 1; /* the last contour's 'closepath'. */
-    if (contour_beg >= contour_end)
+    if (contour_beg + 8 >= contour_end)
 	return;
     for (k = 0; k < 2; k++) {
         t1_glyph_space_coord *p_gc = (!k ? &this->pole[0].gx : &this->pole[0].gy);