# HG changeset patch
# User Sebastien Decugis <sdecugis@freediameter.net>
# Date 1359812589 -3600
# Node ID 9bd18fa4e6016d40b3915cf104840f6b619d2e7b
# Parent  b6b631c268f38dc617a5c62212d93f4692944c86
Fix macro to avoid infinite loop in some situations

diff -r b6b631c268f3 -r 9bd18fa4e601 libfdproto/messages.c
--- a/libfdproto/messages.c	Fri Feb 01 17:05:26 2013 +0100
+++ b/libfdproto/messages.c	Sat Feb 02 14:43:09 2013 +0100
@@ -105,7 +105,7 @@
 /* Macro to cast a msg_avp_t */
 #define _A(_x) ((struct avp *)(_x))
 /* Check the type and eyecatcher */
-#define CHECK_AVP(_x) ((_C(_x)->type == MSG_AVP) && (_A(_x)->avp_eyec == MSG_AVP_EYEC))
+#define CHECK_AVP(_x) ((_x) && (_C(_x)->type == MSG_AVP) && (_A(_x)->avp_eyec == MSG_AVP_EYEC))
 
 /* The following structure represents an instance of a message (command and children AVPs). */
 struct msg {