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Importing usr.bin/tty

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Replaces commands/tty. No Minix-specific changes needed.

Change-Id: I7ed8589a8cfb0f4fedab6eb760e321876db73502
This commit is contained in:
Thomas Cort
2013-10-29 08:35:09 -04:00
parent ed31a90dd5
commit b828b0feb7
10 changed files with 166 additions and 67 deletions
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usr.bin/Makefile
+1 -1
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@@ -26,7 +26,7 @@ SUBDIR= asa \
shuffle sed seq \
sort split stat su \
tee tic tput \
tr tsort unexpand \
tr tsort tty unexpand \
toproto \
uniq units unvis unzip users \
uuidgen vis \
usr.bin/tty/Makefile
+6
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@@ -0,0 +1,6 @@
# $NetBSD: Makefile,v 1.3 1994/12/07 00:46:54 jtc Exp $
# @(#)Makefile 8.1 (Berkeley) 6/6/93
PROG= tty
.include <bsd.prog.mk>
usr.bin/tty/tty.1
+75
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@@ -0,0 +1,75 @@
.\" $NetBSD: tty.1,v 1.8 2003/08/07 11:16:51 agc Exp $
.\"
.\" Copyright (c) 1990, 1993
.\" The Regents of the University of California. All rights reserved.
.\"
.\" This code is derived from software contributed to Berkeley by
.\" the Institute of Electrical and Electronics Engineers, Inc.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" @(#)tty.1 8.1 (Berkeley) 6/6/93
.\"
.Dd June 6, 1993
.Dt TTY 1
.Os
.Sh NAME
.Nm tty
.Nd return user's terminal name
.Sh SYNOPSIS
.Nm
.Op Fl s
.Sh DESCRIPTION
The
.Nm
utility writes the name of the terminal attached to standard input
to standard output.
The name that is written is the string returned by
.Xr ttyname 3 .
If the standard input is not a terminal, the message ``not a tty''
is written.
The options are as follows:
.Bl -tag -width Ds
.It Fl s
Don't write the terminal name; only the exit status is affected
when this option is specified.
The
.Fl s
option is deprecated in favor of the
.Dq Li "test -t 0"
command.
.El
.Pp
.Nm
exits 0 if the standard input is a terminal, 1 if the standard input is
not a terminal, and \*[Gt]1 if an error occurs.
.Sh SEE ALSO
.Xr test 1 ,
.Xr ttyname 3
.Sh STANDARDS
The
.Nm
utility conforms to
.St -p1003.2-92 .
usr.bin/tty/tty.c
+81
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@@ -0,0 +1,81 @@
/* $NetBSD: tty.c,v 1.8 2011/09/06 18:34:57 joerg Exp $ */
/*
* Copyright (c) 1988, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1988, 1993\
The Regents of the University of California. All rights reserved.");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)tty.c 8.1 (Berkeley) 6/6/93";
#endif
__RCSID("$NetBSD: tty.c,v 1.8 2011/09/06 18:34:57 joerg Exp $");
#endif /* not lint */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
__dead static void usage(void);
int
main(int argc, char **argv)
{
int ch, sflag;
char *t;
sflag = 0;
while ((ch = getopt(argc, argv, "s")) != -1) {
switch((char)ch) {
case 's':
sflag = 1;
break;
case '?':
default:
usage();
/* NOTREACHED */
}
}
t = ttyname(STDIN_FILENO);
if (!sflag)
puts(t ? t : "not a tty");
exit(t ? 0 : 1);
}
static void
usage(void)
{
fprintf(stderr, "usage: tty [-s]\n");
exit(2);
}