[Serdev] Fix for registrar module in ser-0.9.3 when no expires header exists

[Evan Borgström]

	Attached is a fix for the registrar module that fixes REGISTER packets 
meant to de-register but that contain only an ;expires tag in the 
contact and no Expires: header.

	When clients would send a REGISTER packet without the Expires header 
but that had an ;expires=0 in the contact list SER would crash and 
eventually put a "BUG: qm_free" message to the debug logs then exit.


-Evan
-------------- next part --------------
--- ser-0.9.3.orig/modules/registrar/sip_msg.c	2005-06-14 11:47:34.000000000 -0400
+++ ser-0.9.3/modules/registrar/sip_msg.c	2005-06-14 11:56:39.000000000 -0400
@@ -98,10 +98,14 @@
 		return -4;
 	}
 
-	if (_m->expires && !_m->expires->parsed && (parse_expires(_m->expires) < 0)) {
-		rerrno = R_PARSE_EXP;
-		LOG(L_ERR, "parse_message(): Error while parsing expires body\n");
-		return -5;
+	if (_m->expires) {
+		if (!_m->expires->parsed && (parse_expires(_m->expires) < 0)) {
+			rerrno = R_PARSE_EXP;
+			LOG(L_ERR, "parse_message(): Error while parsing expires body\n");
+			return -5;
+		}
+	} else {
+		_m->expires = 0;
 	}
 	
 	if (_m->contact) {