Function priv_net_create_socket

server/src/system.c:855–909

}

static int priv_net_create_socket(int domain, int type, struct sockaddr *addr, int sockaddrlen)
{
	int sock, e;

	/* create socket */
	sock = socket(domain, type, 0);
	if(sock < 0)
	{
#if defined(CONF_FAMILY_WINDOWS)
		char buf[128];
		int error = WSAGetLastError();
		if(FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, 0, error, 0, buf, sizeof(buf), 0) == 0)
			buf[0] = 0;
		dbg_msg("net", "failed to create socket with domain %d and type %d (%d '%s')", domain, type, error, buf);
#else
		dbg_msg("net", "failed to create socket with domain %d and type %d (%d '%s')", domain, type, errno, strerror(errno));
#endif
		return -1;
	}

	/* set to IPv6 only if thats what we are creating */
#if defined(IPV6_V6ONLY)	/* windows sdk 6.1 and higher */
	if(domain == AF_INET6)
	{
		int ipv6only = 1;
		setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, (const char*)&ipv6only, sizeof(ipv6only));
	}
#endif

	if(type == SOCK_STREAM)
	{
		int tmp = 1;
		setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
	}

	/* bind the socket */
	e = bind(sock, addr, sockaddrlen);
	if(e != 0)
	{
#if defined(CONF_FAMILY_WINDOWS)
		char buf[128];
		int error = WSAGetLastError();
		if(FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, 0, error, 0, buf, sizeof(buf), 0) == 0)
			buf[0] = 0;
		dbg_msg("net", "failed to bind socket with domain %d and type %d (%d '%s')", domain, type, error, buf);
#else
		dbg_msg("net", "failed to bind socket with domain %d and type %d (%d '%s')", domain, type, errno, strerror(errno));
#endif
		priv_net_close_socket(sock);
		return -1;
	}

	/* return the newly created socket */
	return sock;
}

NETSOCKET net_udp_create(NETADDR bindaddr)
{