Index: include/asterisk/utils.h
===================================================================
RCS file: /usr/cvsroot/asterisk/include/asterisk/utils.h,v
retrieving revision 1.1
diff -u -p -r1.1 utils.h
--- include/asterisk/utils.h	3 May 2004 04:31:11 -0000	1.1
+++ include/asterisk/utils.h	4 May 2004 15:36:52 -0000
@@ -14,7 +14,12 @@
 
 static inline int ast_strlen_zero(const char *s)
 {
-	return (*s == '\0');
+	if (!s) {
+		return(-1);
+	}
+	else {
+		return (*s == '\0');
+	}
 }
 
 #endif