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view toys/posix/tty.c @ 694:786841fdb1e0

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Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. The actual code should be the same afterward, this is just cosmetic refactoring.
author Rob Landley <rob@landley.net>
date Tue, 13 Nov 2012 17:14:08 -0600
parents 2986aa63a021
children bd1225873eb4
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/* tty.c - Show stdin's terminal name
 *
 * Copyright 2011 Rob Landley <rob@landley.net>
 *
 * See http://opengroup.org/onlinepubs/9699919799/utilities/tty.html

USE_TTY(NEWTOY(tty, "s", TOYFLAG_USR|TOYFLAG_BIN))

config TTY
  bool "tty"
  default y
  help
    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 mode
*/

#include "toys.h"

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

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

  toys.exitval = !tty;
}