putroppo non mi va....
ho messo:
char *ind = "localhost";// oppure "127.0.0.1"
int ind_n = atoi(ind);
client_addr.inet.family = PR_AF_INET;
client_addr.inet.ip = PR_htons(ind_n);
client_addr.inet.port = PR_htons(53);

prStatus = PR_Connect(tcpSocket, &client_addr, PR_INTERVAL_NO_TIMEOUT);

ma niente!!
perchèèèè?!?!