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/* See LICENSE file for copyright and license details. */
#include <stdio.h>
#include <unistd.h>
#include "util.h"
static void
usage(void)
{
enprintf(2, "usage: %s\n", argv0);
}
int
main(int argc, char *argv[])
{
char *tty;
ARGBEGIN {
default:
usage();
} ARGEND
if (argc)
usage();
tty = ttyname(STDIN_FILENO);
puts(tty ? tty : "not a tty");
enfshut(2, stdout, "<stdout>");
return !tty;
}