int
main(int argc, char **argv)
{
int n, flags;
char buff[NREAD+1]; /* +1 for null at end */
if (argc == 2)
listenfd = Tcp_listen(NULL, argv[1], NULL);
else if (argc == 3)
listenfd = Tcp_listen(argv[1], argv[2], NULL);
else
err_quit("usage: tcprecv02 [ <host> ] <port#>");
connfd = Xti_accept(listenfd, NULL, NULL);
Signal(SIGPOLL, sig_poll);
Ioctl(connfd, I_SETSIG, S_RDNORM);
for ( ; ; ) {
flags = 0;
if ( (n = t_rcv(connfd, buff, NREAD, &flags)) < 0) {
if (t_errno == TLOOK) {
if ( (n = T_look(connfd)) == T_ORDREL) {
printf("received T_ORDREL\n");
exit(0);
} else
err_quit("unexpected event after t_rcv: %d", n);
}
err_xti("t_rcv error");
}
buff[n] = 0; /* null terminate */
printf("read %d bytes: %s, flags = %s\n",
n, buff, Xti_flags_str(flags));
}
}
int
main(int argc, char **argv)
{
int listenfd, connfd;
pid_t childpid;
void sig_chld(int), sig_int(int), web_child(int);
socklen_t addrlen;
struct netbuf cliaddr;
if (argc == 2)
listenfd = Tcp_listen(NULL, argv[1], &addrlen);
else if (argc == 3)
listenfd = Tcp_listen(argv[1], argv[2], &addrlen);
else
err_quit("usage: serv01 [ <host> ] <port#>");
cliaddr.buf = Malloc(addrlen);
cliaddr.maxlen = addrlen;
Signal(SIGCHLD, sig_chld);
Signal(SIGINT, sig_int);
for ( ; ; ) {
connfd = Xti_accept(listenfd, &cliaddr, 1);
printf("connection from %s\n", Xti_ntop(&cliaddr));
if ( (childpid = Fork()) == 0) { /* child process */
Close(listenfd); /* close listening socket */
web_child(connfd); /* process the request */
exit(0);
}
Close(connfd); /* parent closes connected socket */
}
}
int
main(int argc, char **argv)
{
int listenfd, connfd, n, flags;
char buff[MAXLINE];
struct pollfd fds[1];
if (argc == 2)
listenfd = Tcp_listen(NULL, argv[1], NULL);
else if (argc == 3)
listenfd = Tcp_listen(argv[1], argv[2], NULL);
else
err_quit("usage: daytimetcpsrv01 [ <host> ] <service or port>");
connfd = Xti_accept(listenfd, NULL, 0);
fds[0].fd = connfd;
fds[0].events = POLLIN | POLLRDNORM | POLLRDBAND | POLLPRI;
for ( ; ; ) {
n = poll(fds, 1, INFTIM);
printf("poll returned %d, revents = 0x%x\n", n, fds[0].revents);
n = T_rcv(connfd, buff, sizeof(buff), &flags);
printf("received %d bytes, flags = %d\n", n, flags);
}
}
int
main(int argc, char **argv)
{
int n, flags;
char buff[NREAD+1]; /* +1 for null at end */
struct pollfd pollfd[1];
if (argc == 2)
listenfd = Tcp_listen(NULL, argv[1], NULL);
else if (argc == 3)
listenfd = Tcp_listen(argv[1], argv[2], NULL);
else
err_quit("usage: tcprecv05 [ <host> ] <port#>");
connfd = Xti_accept(listenfd, NULL, NULL);
sleep(5);
pollfd[0].fd = connfd;
pollfd[0].events = POLLIN;
for ( ; ; ) {
Poll(pollfd, 1, INFTIM);
printf("revents = %x\n", pollfd[0].revents);
if (pollfd[0].revents & POLLIN) {
flags = 0;
if ( (n = t_rcv(connfd, buff, NREAD, &flags)) < 0) {
if (t_errno == TLOOK) {
if ( (n = T_look(connfd)) == T_ORDREL) {
printf("received T_ORDREL\n");
exit(0);
} else
err_quit("unexpected event after t_rcv: %d", n);
}
err_xti("t_rcv error");
}
buff[n] = 0; /* null terminate */
printf("read %d bytes: %s, flags = %s\n",
n, buff, Xti_flags_str(flags));
}
}
}
