int open_master_pty(void)
{
int fd;
fd = open("/dev/ptmx", O_RDWR);
if (fd < 0) {
perror("Failed to open /dev/ptmx");
return fd;
}
setup_tty_attributes(fd);
return fd;
}
int open_master_pty(void)
{
int fd;
fd = open("/dev/ptmx", O_RDWR);
if (fd < 0) {
perror("Failed to open /dev/ptmx");
return fd;
}
/* set control tty */
if (ioctl(fd, TIOCSCTTY, 1) != 0 )
perror("Failed to set control tty");
setup_tty_attributes(fd);
return fd;
}
int
main (int argc, char* argv[])
{
struct termios oldtm;
fd_set sel, sel0;
int status;
char* newarg0;
/* SIGINT and SIGBREAK are indistinctive under cygwin environment. */
/* Using Win32API to handle SIGINT. */
SetConsoleCtrlHandler (ctrl_handler, TRUE);
if (argc < 1)
{
fprintf (stderr, "Unable to get arg[0].");
exit (1);
}
newarg0 = real_command_name (argv[0]);
if (newarg0)
{
argv[0] = newarg0;
exec_target (argv); /* This sets globals masterfd, child_pid */
}
else if (argc > 1)
{
exec_target (argv + 1); /* This sets globals masterfd, child_pid */
}
else
{
fprintf (stderr, "Unable to get arg[1].");
exit (1);
}
setup_tty_attributes ();
FD_ZERO (&sel0);
FD_SET (masterfd, &sel0);
FD_SET (0, &sel0);
/* communication loop */
while (1)
{
char buf[BUFSIZE];
int ret;
sel = sel0;
if (select (FD_SETSIZE, &sel, NULL, NULL, NULL) <= 0)
break;
if (FD_ISSET (masterfd, &sel))
{
ret = read (masterfd, buf, BUFSIZE);
if (ret > 0)
write (1, buf, ret);
else
break;
}
else if (FD_ISSET (0, &sel))
{
ret = read (0, buf, BUFSIZE);
if (ret > 0)
write (masterfd, buf, ret);
else
{
FD_CLR (0, &sel0);
close (masterfd);
}
}
}
restore_tty_attributes ();
kill (child_pid, SIGKILL);
waitpid (child_pid, &status, 0);
return WEXITSTATUS (status);
}