From a2184485c89aa39133cf46d5648bf69f8e758b19 Mon Sep 17 00:00:00 2001
From: oetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Date: Sun, 22 Oct 2006 21:09:27 +0000
Subject: [PATCH] check if valid control codes are in use

git-svn-id: svn://svn.oetiker.ch/rrdtool/branches/1.2/program@907 a5681a0c-68f1-0310-ab6d-d61299d08faa
---
 src/rrd_graph.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/rrd_graph.c b/src/rrd_graph.c
index a16734b..7018032 100644
--- a/src/rrd_graph.c
+++ b/src/rrd_graph.c
@@ -1446,6 +1446,18 @@ leg_place(image_desc_t *im)
 	} else {
 	    prt_fctn = '\0';
 	}
+	/* only valid control codes */
+        if (prt_fctn != 'l' && 
+	    prt_fctn != 'r' &&
+	    prt_fctn != 'j' &&
+            prt_fctn != 't' &&
+            prt_fctn != '\0' &&
+            prt_fctn != 'g' ) {
+	       free(legspace);
+	       rrd_set_error("Uknown control code at the end of '%s\\%c'",im->gdes[i].legend,prt_fctn);
+       	       return -1;
+
+	}
         /* remove exess space */
         while (prt_fctn=='g' && 
 	       leg_cc > 0 && 
-- 
2.30.2