add: return 0;
context: static inline void clone_authorized_hooks(struct sip_msg* new,														struct sip_msg* old){	struct hdr_field* ptr, *new_ptr, *hook1, *hook2;	char stop = 0;	get_authorized_cred(old->authorization, &hook1);	if (!hook1) stop = 1;		get_authorized_cred(old->proxy_auth, &hook2);	if (!hook2) stop |= 2;	ptr = old->headers;	new_ptr = new->headers;	while(ptr) {		if (ptr == hook1) {			((struct auth_body*)new->authorization->parsed)->authorized =				new_ptr;			stop |= 1;		}				if (ptr == hook2) {			((struct auth_body*)new->proxy_auth->parsed)->authorized =				new_ptr;			stop |= 2;		}		if (stop == 3) break;		ptr = ptr->next;		new_ptr = new_ptr->next;	}}