Function parse_allow

parser/parse_allow.c:43–90

* This method is used to parse all Allow HF body. * * params: msg : sip msg * returns 0 on success, * -1 on failure. */

 *        -1 on failure.
 */
int parse_allow(struct sip_msg *msg)
{
	unsigned int allow;
	struct hdr_field  *hdr;
	struct allow_body *ab = 0;

	/* maybe the header is already parsed! */
	if (msg->allow && msg->allow->parsed)
		return 0;

	/* parse to the end in order to get all ALLOW headers */
	if (parse_headers(msg,HDR_EOH_F,0)==-1 || !msg->allow)
		return -1;

	/* bad luck! :-( - we have to parse them */
	allow = 0;
	for( hdr=msg->allow ; hdr ; hdr=hdr->sibling) {
		if (hdr->parsed) {
			allow |= ((struct allow_body*)hdr->parsed)->allow;
			continue;
		}

		ab = (struct allow_body*)pkg_malloc(sizeof(struct allow_body));
		if (ab == 0) {
			LM_ERR("out of pkg_memory\n");
			return -1;
		}

		if (parse_methods(&(hdr->body), &(ab->allow))!=0) {
			LM_ERR("bad allow body header\n");
			set_err_info(OSER_EC_PARSER, OSER_EL_MEDIUM,
				"error parsing ALLOW header");
			set_err_reply(400, "bad headers");
			goto error;
		}
		ab->allow_all = 0;
		hdr->parsed = (void*)ab;
		allow |= ab->allow;
	}

	((struct allow_body*)msg->allow->parsed)->allow_all = allow;
	return 0;

error:
	if(ab!=0)
		pkg_free(ab);
	return -1;
}