[gtk+] cssparser: Fix cases where we could overrun the terminating 0

[Benjamin Otte <otte src gnome org>]

commit 8d6b560ff366394374dc0a96005cac14efe8d5ac
Author: Benjamin Otte <otte redhat com>
Date:   Fri Jun 17 07:55:17 2011 +0200

    cssparser: Fix cases where we could overrun the terminating 0

 gtk/gtkcssparser.c |   11 ++++++++---
 1 files changed, 8 insertions(+), 3 deletions(-)
---
diff --git a/gtk/gtkcssparser.c b/gtk/gtkcssparser.c
index 13d63d4..2d6a4df 100644
--- a/gtk/gtkcssparser.c
+++ b/gtk/gtkcssparser.c
@@ -875,17 +875,20 @@ _gtk_css_parser_resync_internal (GtkCssParser *parser,
       case '(':
         parser->data++;
         _gtk_css_parser_resync (parser, FALSE, ')');
-        parser->data++;
+        if (*parser->data)
+          parser->data++;
         break;
       case '[':
         parser->data++;
         _gtk_css_parser_resync (parser, FALSE, ']');
-        parser->data++;
+        if (*parser->data)
+          parser->data++;
         break;
       case '{':
         parser->data++;
         _gtk_css_parser_resync (parser, FALSE, '}');
-        parser->data++;
+        if (*parser->data)
+          parser->data++;
         if (sync_at_semicolon || !terminator)
           {
             _gtk_css_parser_skip_whitespace (parser);
@@ -902,6 +905,8 @@ _gtk_css_parser_resync_internal (GtkCssParser *parser,
           }
         parser->data++;
         continue;
+      case '\0':
+        break;
       case '/':
       default:
         parser->data++;