Function do_query

modules/enum/enum.c:537–643

* Makes enum query on name. On success, rewrites user part and * replaces Request-URI. */

 * replaces Request-URI.
 */
int do_query(struct sip_msg* _msg, char *user, char *name, str *service) {

    char uri[MAX_URI_SIZE];
    char new_uri[MAX_URI_SIZE];
    unsigned int priority, curr_prio, first;
    qvalue_t q;
    struct rdata* head;
    struct rdata* l;
    struct naptr_rdata* naptr;
    str pattern, replacement, result, new_result;
	struct msg_branch branch;

    head = get_record(name, T_NAPTR);

    if (head == 0) {
	LM_DBG("No NAPTR record found for %s.\n", name);
	return -1;
    }

    naptr_sort(&head);

    q = MAX_Q - 10;
    curr_prio = 0;
    first = 1;

    for (l = head; l; l = l->next) {

	if (l->type != T_NAPTR) continue; /*should never happen*/
	naptr = (struct naptr_rdata*)l->rdata;
	if (naptr == 0) {
	    LM_ERR("Null rdata in DNS response\n");
	    continue;
	}

	LM_DBG("ENUM query on %s: order %u, pref %u, flen %u, flags '%.*s', "
	       "slen %u, services '%.*s', rlen %u, regexp '%.*s'\n",
	       name, naptr->order, naptr->pref,
	    naptr->flags_len, (int)(naptr->flags_len), ZSW(naptr->flags),
	    naptr->services_len,
	    (int)(naptr->services_len), ZSW(naptr->services), naptr->regexp_len,
	    (int)(naptr->regexp_len), ZSW(naptr->regexp));

	if (sip_match(naptr, service) == 0) continue;

	if (parse_naptr_regexp(&(naptr->regexp[0]), naptr->regexp_len,
			       &pattern, &replacement) < 0) {
	    LM_ERR("Parsing of NAPTR regexp failed\n");
	    continue;
	}
	result.s = &(uri[0]);
	result.len = MAX_URI_SIZE;
	/* Avoid making copies of pattern and replacement */
	pattern.s[pattern.len] = (char)0;
	replacement.s[replacement.len] = (char)0;
	if (reg_replace(pattern.s, replacement.s, user, &result) < 0) {
	    pattern.s[pattern.len] = '!';
	    replacement.s[replacement.len] = '!';
	    LM_ERR("Regexp replace failed\n");