Function totemip_parse

exec/totemip.c:306–417

* Converts an address string string into a totem_ip_address. ip_version enum * defines order. */

 * defines order.
 */
int totemip_parse(struct totem_ip_address *totemip, const char *addr,
    enum totem_ip_version_enum ip_version)
{
	struct addrinfo *ainfo;
	struct addrinfo *ainfo_iter;
	struct addrinfo *ainfo_ipv4;
	struct addrinfo *ainfo_ipv6;
	struct addrinfo *ainfo_final;
	struct addrinfo ahints;
	struct sockaddr_in *sa;
	struct sockaddr_in6 *sa6;
	int ret;
	int debug_ip_family;
	int ai_family;

	memset(&ahints, 0, sizeof(ahints));
	ahints.ai_socktype = SOCK_DGRAM;
	ahints.ai_protocol = IPPROTO_UDP;

	ai_family = AF_UNSPEC;
	debug_ip_family = 0;

	switch (ip_version) {
	case TOTEM_IP_VERSION_4:
		ai_family = AF_INET;
		debug_ip_family = 4;
		break;
	case TOTEM_IP_VERSION_6:
		ai_family = AF_INET6;
		debug_ip_family = 6;
		break;
	case TOTEM_IP_VERSION_6_4:
	case TOTEM_IP_VERSION_4_6:
		/*
		 * ai_family and debug_ip_family are already set correctly
		 */
		break;
	}

	ahints.ai_family = ai_family;

	ret = getaddrinfo(addr, NULL, &ahints, &ainfo);

	if (ret == 0 && ai_family == AF_UNSPEC) {
		ainfo_ipv4 = ainfo_ipv6 = NULL;

		/*
		 * Walk thru results and store first AF_INET and AF_INET6
		 */
		for (ainfo_iter = ainfo; ainfo_iter != NULL; ainfo_iter = ainfo_iter->ai_next) {
			if (ainfo_iter->ai_family == AF_INET && ainfo_ipv4 == NULL) {
				ainfo_ipv4 = ainfo_iter;
			}

			if (ainfo_iter->ai_family == AF_INET6 && ainfo_ipv6 == NULL) {
				ainfo_ipv6 = ainfo_iter;
			}
		}