view toys/posix/tty.c @ 1012:bd1225873eb4

Fix usage: lines for a couple commands.
author Rob Landley <>
date Sun, 18 Aug 2013 13:52:08 -0500
parents 786841fdb1e0
line wrap: on
line source

/* tty.c - Show stdin's terminal name
 * Copyright 2011 Rob Landley <>
 * See


config TTY
  bool "tty"
  default y
    usage: tty [-s]

    Show filename of terminal connected to stdin.

    Prints "not a tty" and exits with nonzero status if no terminal
    is connected to stdin.

    -s	silent, exit code only

#include "toys.h"

void tty_main(void)
  char *tty = ttyname(0);

  if (!toys.optflags) puts(tty ? tty : "not a tty");

  toys.exitval = !tty;