static void
daemon_proc(int sock, int fdtty)
{
char *goodbye = "\r\nGood-bye\r\n";
int sock_cli;
struct sockaddr_in cli;
int slen;
int rc;
int fsess = 1;
slen = sizeof(cli);
while (1) {
cmd_quit = 0;
sock_cli = accept(sock, (struct sockaddr *) &cli, (socklen_t *)&slen);
if (sock_cli < 0)
continue;
set_telnet_mode(sock_cli);
set_nonblock(fdtty);
/* to show the prompt if it is not the first connection */
if (!fsess)
rc = write(fdtty, "\n", 2);
fsess = 0;
while (!cmd_quit) {
if ((rc = pipe_rw(fdtty, sock_cli)) < 0)
break;
rc = pipe_rw(sock_cli, fdtty);
/* error */
if (rc < 0)
break;
/* time out */
if (rc == 0)
continue;
}
pipe_rw(fdtty, sock_cli);
rc = write(sock_cli, goodbye, strlen(goodbye));
close(sock_cli);
}
}
static void
daemon_proc(int sock, int fdtty)
{
int sock_cli;
struct sockaddr_in cli;
int slen;
fd_set set;
struct timeval tv;
u_char buf[8192];
int i;
slen = sizeof(cli);
while (1) {
cmd_quit = 0;
sock_cli = accept(sock, (struct sockaddr *) &cli, (socklen_t *)&slen);
if (sock_cli < 0)
continue;
set_telnet_mode(sock_cli);
while (!cmd_quit) {
FD_ZERO(&set);
FD_SET(sock_cli, &set);
FD_SET(fdtty, &set);
/* wait 100ms */
tv.tv_sec = 0;
tv.tv_usec = 100000;
i = select((fdtty > sock_cli) ? (fdtty+1) : (sock_cli+1),
&set, NULL, NULL, &tv);
/* error */
if (i < 0)
break;
/* time out */
if (i == 0)
continue;
if (FD_ISSET(fdtty, &set)) {
memset(buf, 0, sizeof(buf));
i = read(fdtty, buf, sizeof(buf));
if (i <= 0)
break;
if (write(sock_cli, buf, i) <= 0)
break;
}
if (FD_ISSET(sock_cli, &set)) {
memset(buf, 0, sizeof(buf));
i = read(sock_cli, buf, sizeof(buf));
if (i <= 0)
break;
if (buf[0] != 0xff && write(fdtty, buf, i) <= 0)
break;
}
}
strcpy((char *)buf, "\r\nGood-bye\r\n");
i = write(sock_cli, buf, strlen((char *)buf));
close(sock_cli);
}
}
static void
loop(void)
{
struct sockaddr_in cli;
int slen;
u_char buf[256], *p;
int i;
fd_set set;
struct timeval tv;
slen = sizeof(cli);
while (cmd_quit != 2) {
cmd_quit = 0;
sock_cli = accept(sock, (struct sockaddr *) &cli,
(socklen_t *)&slen);
if (sock_cli < 0)
continue;
set_telnet_mode(sock_cli);
pthread_create(&pid_master, NULL, pty_master, NULL);
pthread_create(&pid_salve, NULL, pty_slave, NULL);
fcntl(0, F_SETFL, fcntl(sock_cli, F_GETFL) | O_NONBLOCK);
while (!cmd_quit) {
FD_ZERO(&set);
FD_SET(sock_cli, &set);
/* wait 1s */
tv.tv_sec = 1;
tv.tv_usec = 0;
i = select(sock_cli + 1, &set, NULL, NULL, &tv);
/* error */
if (i < 0)
break;
/* time out */
if (i == 0)
continue;
if (FD_ISSET(sock_cli, &set)) {
memset(buf, 0, sizeof(buf));
i = read(sock_cli, buf, sizeof(buf));
if (i < 0)
break;
if (i == 0)
continue;
p = buf;
/* skip telnet IAC... */
if (*p == 0xff)
while (*p && !isprint(*p))
p++;
if (*p == '\0')
continue;
i = i - (p - buf);
while (i > 0 && *(p + i - 1) == '\0')
i--;
if (i <= 0)
continue;
if (*p == CTRLD) {
p = buf;
strcpy((char *)buf, "disconnect\n");
i = strlen((char *)buf);
i = write(ptyfdm, p, i);
usleep(100);
strcpy((char *)buf, "\n");
i = strlen((char *)buf);
}
/* ignore pty error */
if (write(ptyfdm, p, i))
;
}
}
pthread_cancel(pid_master);
pthread_cancel(pid_salve);
close(sock_cli);
}
}
