rem: anchor = anchor_lump(&_m->add_rm, _m->via1->hdr.s - _m->buf, 0 , 0);
add: anchor = anchor_lump(&_m->add_rm, _m->headers->name.s - _m->buf, 0 , 0);
context: int addRRLine(struct sip_msg* _m, char* _l){	struct lump* anchor;#ifdef PARANOID	if ((!_m) || (!_l)) {		LOG(L_ERR, "addRRLine(): Invalid parameter value\n");		return FALSE;	}#endif	anchor = anchor_lump(&_m->add_rm, _m->via1->hdr.s - _m->buf, 0 , 0);	if (anchor == NULL) {		LOG(L_ERR, "addRRLine(): Error, can't get anchor\n");		return FALSE;	}	if (insert_new_lump_before(anchor, _l, strlen(_l), 0) == 0) {		LOG(L_ERR, "addRRLine(): Error, can't insert Record-Route\n");		return FALSE;	}	return TRUE;}