int val = 1;
setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
setsockopt(sock, SOL_SOCKET, SO_BROADCAST, &val, sizeof(val));
int val = 1;
setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
setsockopt(sock, SOL_SOCKET, SO_BROADCAST, &val, sizeof(val));