int tty_main(int argc, char **argv)
{
const char *s;
int silent; /* Note: No longer relevant in SUSv3. */
int retval;
xfunc_error_retval = 2; /* SUSv3 requires > 1 for error. */
silent = getopt32(argc, argv, "s");
/* gnu tty outputs a warning that it is ignoring all args. */
bb_warn_ignoring_args(argc - optind);
retval = 0;
if ((s = ttyname(0)) == NULL) {
/* According to SUSv3, ttyname can on fail with EBADF or ENOTTY.
* We know the file descriptor is good, so failure means not a tty. */
s = "not a tty";
retval = 1;
}
if (!silent) {
puts(s);
}
fflush_stdout_and_exit(retval);
}
signed int __main(signed int argc, char **argv)
{
bb_warn_ignoring_args(argv[(signed long int)1]);
sync();
return 0;
}
int sync_main(int argc, char **argv)
{
bb_warn_ignoring_args(argc - 1);
sync();
return EXIT_SUCCESS;
}
