From 32bd59d4f75f135b26a537f438e0d6b893f1cdfb Mon Sep 17 00:00:00 2001
From: Nicolas Pennequin <nicolas.pennequin@free.fr>
Date: Sat, 14 Apr 2007 16:20:33 +0000
Subject: Better error checking for the image display tag (%xdn). Should
 prevent problems with the former crossfeed tag (%xd) when used in a
 conditional construct.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13158 a1c6a512-1295-4272-9138-f99709370657
---
 apps/gui/wps_parser.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'apps')

diff --git a/apps/gui/wps_parser.c b/apps/gui/wps_parser.c
index c0a1202eb8..e72079ce71 100644
--- a/apps/gui/wps_parser.c
+++ b/apps/gui/wps_parser.c
@@ -357,6 +357,14 @@ static int parse_image_display(const char *wps_bufptr,
                                struct wps_data *wps_data)
 {
     int n = get_image_id(*wps_bufptr);
+
+    if (n == -1)
+    {
+        /* invalid picture display tag */
+        token->type = WPS_TOKEN_UNKNOWN;
+        return 0;
+    }
+
     token->value.i = n;
 
     /* if the image is in a conditional, remember it */
-- 
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