view toys/tty.c @ 233:d4176f3f3835

Zap toys/Config.in and instead create generated/Config.in from contents of toys/*.c. Move relevant info into comment at the top of each toys/*.c. Also convert more of Makefile into a thin wrapper around shell scripts that actually do the work. (Makefile is only still there for the user interface.)
author Rob Landley <rob@landley.net>
date Sat, 19 Jan 2008 17:08:39 -0600
parents 25447caf1b4b
children 163498bf547b
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/* vi: set sw=4 ts=4:
 * tty.c - print terminal name of stdin
 *
 * Copyright 2007 Charlie Shepherd <masterdriverz@gentoo.org>
 *
 * See http://www.opengroup.org/onlinepubs/009695399/utilities/tty.html

config TTY
	bool "tty"
	default y
	help
	  Print the filename of the terminal connected to standard input.

	  -s	Don't print anything, only return an exit status.
*/

#include "toys.h"

void tty_main(void)
{
	char *name = ttyname(0);
	if (!toys.optflags) {
		if (name) puts(name);
		else puts("Not a tty");
	}
	toys.exitval = !name;
}