C++ (Cpp) socket_af Examples

Example #1

int
udp_bind(struct sockaddr *sa, in_port_t port)
{
	int	 s, val;

	if (socket_af(sa, port) == -1) {
		log_warn("%s: failed to set UDP port", __func__);
		return (-1);
	}

	if ((s = socket(sa->sa_family, SOCK_DGRAM, IPPROTO_UDP)) == -1) {
		log_warn("%s: failed to get UDP socket", __func__);
		return (-1);
	}

	/* Skip IPsec processing (don't encrypt) for IKE messages */
	if (socket_bypass(s, sa) == -1) {
		log_warn("%s: failed to bypass IPsec on IKE socket",
		    __func__);
		goto bad;
	}

	val = 1;
	if (setsockopt(s, SOL_SOCKET, SO_REUSEPORT, &val, sizeof(int)) == -1) {
		log_warn("%s: failed to set reuseport", __func__);
		goto bad;
	}
	val = 1;
	if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(int)) == -1) {
		log_warn("%s: failed to set reuseaddr", __func__);
		goto bad;
	}

	if (sa->sa_family == AF_INET) {
		val = 1;
		if (setsockopt(s, IPPROTO_IP, IP_RECVDSTADDR,
		    &val, sizeof(int)) == -1) {
			log_warn("%s: failed to set IPv4 packet info",
			    __func__);
			goto bad;
		}
	} else {
		val = 1;
		if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVPKTINFO,
		    &val, sizeof(int)) == -1) {
			log_warn("%s: failed to set IPv6 packet info",
			    __func__);
			goto bad;
		}
	}

	if (bind(s, sa, sa->sa_len) == -1) {
		log_warn("%s: failed to bind UDP socket", __func__);
		goto bad;
	}

	return (s);
 bad:
	close(s);
	return (-1);
}

Example #2

File: util.c Project: artasoftkey/openiked

int
udp_bind(struct sockaddr *sa, in_port_t port)
{
	int	 s, val;

	if (socket_af(sa, port) == -1) {
		log_warn("%s: failed to set UDP port", __func__);
		return (-1);
	}

	if ((s = socket(sa->sa_family, SOCK_DGRAM, IPPROTO_UDP)) == -1) {
		log_warn("%s: failed to get UDP socket", __func__);
		return (-1);
	}

	/* Skip IPsec processing (don't encrypt) for IKE messages */
	if (socket_bypass(s, sa) == -1) {
		log_warn("%s: failed to bypass IPsec on IKE socket",
		    __func__);
		goto bad;
	}

#ifdef SO_REUSEPORT
	val = 1;
	if (setsockopt(s, SOL_SOCKET, SO_REUSEPORT, &val, sizeof(int)) == -1) {
		log_warn("%s: failed to set reuseport", __func__);
		goto bad;
	}
#endif
#ifdef SO_REUSEADDR
	val = 1;
	if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(int)) == -1) {
		log_warn("%s: failed to set reuseaddr", __func__);
		goto bad;
	}
#endif

	if (sa->sa_family == AF_INET) {
		val = 1;
		if (setsockopt(s, IPPROTO_IP,
#if defined(IP_RECVDSTADDR)
		    IP_RECVDSTADDR,
#elif defined(IP_PKTINFO)
		    IP_PKTINFO,
#else
#error IPv4 packet info not supported
#endif
		    &val, sizeof(int)) == -1) {
			log_warn("%s: failed to set IPv4 packet info",
			    __func__);
			goto bad;
		}
	} else {
#ifdef IPV6_V6ONLY
		val = 1;
		if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
		    &val, sizeof(int)) == -1) {
			log_warn("%s: failed to set IPv6-only mode",
			    __func__);
			goto bad;
		}
#endif
		val = 1;
		if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVPKTINFO,
		    &val, sizeof(int)) == -1) {
			log_warn("%s: failed to set IPv6 packet info",
			    __func__);
			goto bad;
		}
	}

	if (bind(s, sa, SA_LEN(sa)) == -1) {
		log_warn("%s: failed to bind UDP socket", __func__);
		goto bad;
	}

	return (s);
 bad:
	close(s);
	return (-1);
}