add: realm_prefix.s = realm_pref; realm_prefix.len = strlen(realm_pref);
context: static int mod_init(void){	bind_usrloc_t bind_usrloc;	DBG("registrar - initializing\n");             /*              * We will need sl_send_reply from stateless	      * module for sending replies	      */        sl_reply = find_export("sl_send_reply", 2, 0);	if (!sl_reply) {		LOG(L_ERR, "registrar: This module requires sl module\n");		return -1;	}		bind_usrloc = (bind_usrloc_t)find_export("ul_bind_usrloc", 1, 0);	if (!bind_usrloc) {		LOG(L_ERR, "registrar: Can't bind usrloc\n");		return -1;	}	     /* Normalize default_q parameter */	if (default_q != Q_UNSPECIFIED) {		if (default_q > MAX_Q) {			DBG("registrar: default_q = %d, lowering to MAX_Q: %d\n", default_q, MAX_Q);			default_q = MAX_Q;		} else if (default_q < MIN_Q) {			DBG("registrar: default_q = %d, raising to MIN_Q: %d\n", default_q, MIN_Q);			default_q = MIN_Q;		}	}		if (bind_usrloc(&ul) < 0) {		return -1;	}	return 0;}