Function bind_addr

lib_acl/samples/udp/udp.cpp:65–112

}

static int bind_addr(struct addrinfo *res0, struct addrinfo **res)
{
	struct addrinfo *it;
	int   on, fd;

	for (it = res0; it != NULL ; it = it->ai_next) {
		fd = socket(it->ai_family, it->ai_socktype, it->ai_protocol);
		if (fd == ACL_SOCKET_INVALID) {
			acl_msg_error("%s(%d): create socket %s",
				__FILE__, __LINE__, acl_last_serror());
			return ACL_SOCKET_INVALID;
		}

		on = 1;
		if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
			(const void *) &on, sizeof(on)) < 0)
		{
			acl_msg_warn("%s(%d): setsockopt(SO_REUSEADDR): %s",
				__FILE__, __LINE__, acl_last_serror());
		}

#if defined(SO_REUSEPORT)
		on = 1;
		if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT,
			(const void *) &on, sizeof(on)) < 0)
		{
			acl_msg_warn("%s(%d): setsocket(SO_REUSEPORT): %s",
				__FILE__, __LINE__, acl_last_serror());
		}
#endif

#ifdef ACL_WINDOWS
		if (bind(fd, it->ai_addr, (int) it->ai_addrlen) == 0)
#else
		if (bind(fd, it->ai_addr, it->ai_addrlen) == 0)
#endif
		{
			*res = it;
			return fd;
		}

		acl_msg_error("%s(%d): bind error %s",
			__FILE__, __LINE__, acl_last_serror());
		acl_socket_close(fd);
	}

	return ACL_SOCKET_INVALID;
}

static SOCK_UDP *sock_open(const char *addr)
{