/*
* Accept a new Telnet connection.
*/
static void
telnet_accept(void *vp)
{
ndesc_t *nd = vp;
int addrlen, s;
struct sockaddr_in addr;
telnet_t *tp;
void *ip;
nd_enable(nd, ND_R);
addrlen = sizeof (addr);
s = accept(nd_fd(nd), (struct sockaddr *)&addr, &addrlen);
if (s == -1)
{
switch (errno)
{
default:
warning("telnet_accept: accept() errno = %d. ip: %s\n",
errno, inet_ntoa(addr.sin_addr));
case EWOULDBLOCK:
case EINTR:
case EPROTO:
return;
}
}
enable_nbio(s);
enable_oobinline(s);
enable_nodelay(s);
enable_lowdelay(s);
enable_keepalive(s);
set_rcvsize(s, TELNET_RCVBUF_SIZE);
set_sndsize(s, TELNET_SNDBUF_SIZE);
tp = telnet_alloc();
tp->t_nd = nd_attach(s, telnet_read, telnet_write, telnet_exception,
NULL, telnet_shutdown, tp);
ip = (void *)new_player(tp, &addr, addrlen);
if (ip == NULL)
{
telnet_shutdown(tp->t_nd, tp);
}
else
{
telnet_attach(tp, ip);
nd_enable(tp->t_nd, ND_R | ND_X);
}
}
/*
* Initialize the UDP Manager.
*/
udpsvc_t *
udpsvc_init(int port)
{
int s;
struct sockaddr_in addr;
struct udpsvc_t *svc;
s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (s == -1)
fatal("udp_init: socket() error = %d.\n", errno);
enable_reuseaddr(s);
memset(&addr, 0, sizeof (addr));
addr.sin_family = AF_INET;
addr.sin_port = htons((u_short)port);
addr.sin_addr.s_addr = INADDR_ANY;
if (bind(s, (struct sockaddr *)&addr, sizeof (addr)) == -1)
{
if (errno == EADDRINUSE)
{
(void)fprintf(stderr, "UDP Socket already bound!\n");
debug_message("UDP Socket already bound!\n");
(void)close(s);
return 0;
}
else
{
fatal("udp_init: bind() error = %d.\n", errno);
}
}
enable_nbio(s);
svc = xalloc(sizeof(*udpsvc));
svc->nq = nq_alloc(UDPSVC_RAWQ_SIZE);
svc->nd = nd_attach(s, udpsvc_read, NULL, NULL, NULL, udpsvc_shutdown,
svc);
nd_enable(svc->nd, ND_R);
return svc;
}
/*
* Initialize the Telnet server.
*/
void
telnet_init(u_short port)
{
int s;
struct sockaddr_in addr;
ndesc_t *nd;
s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (s == -1)
fatal("telnet_init: socket() error = %d.\n", errno);
enable_reuseaddr(s);
memset(&addr, 0, sizeof (addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
addr.sin_addr.s_addr = INADDR_ANY;
if (bind(s, (struct sockaddr *)&addr, sizeof (addr)) == -1)
{
if (errno == EADDRINUSE)
{
(void)fprintf(stderr, "Socket already bound!\n");
debug_message("Socket already bound!\n");
exit(errno);
}
else
{
fatal("telnet_init: bind() error = %d.\n", errno);
}
}
if (listen(s, 5) == -1)
fatal("telnet_init: listen() error = %d.\n", errno);
enable_nbio(s);
nd = nd_attach(s, telnet_ready, NULL, NULL, NULL, telnet_shutdown,
NULL);
nd_enable(nd, ND_R);
}