IPv4/IPv6混合编程示例 (sockaddr_storage)

code_fragment

struct sockaddr_storage addr;
memset(&addr, 0, sizeof(struct sockaddr_storage));
if (isIPv6 == TRUE)
{
    struct sockaddr_in6 *addr_v6 = (struct sockaddr_in6 *)&addr;
    addr_v6->sin6_family = AF_INET6;
    addr_v6->sin6_port = 1234;
    inet_pton(AF_INET6, “2001:3211::1”, &(addr_v6->sin6_addr));
}
else
{
    struct sockaddr_in *addr_v4 = (struct sockaddr_in *)&addr;
    addr_v4->sin_family = AF_INET;
    addr_v4->sin_port = 1234;
    inet_aton(“192.168.1.228”, &(addr_v4->sin_addr));
}

sendto(sock, buf, len, 0, (struct sockaddr *)&addr, sizeof(struct sockaddr_storage));