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File: [cvs.NetBSD.org] / src / lib / libc / termios / tcgetwinsize.c (download)

Revision 1.1, Wed Oct 25 06:32:59 2017 UTC (2 years, 11 months ago) by kre
Branch: MAIN
CVS Tags: phil-wifi-base, phil-wifi-20200421, phil-wifi-20200411, phil-wifi-20200406, phil-wifi-20191119, phil-wifi-20190609, phil-wifi, pgoyette-compat-merge-20190127, pgoyette-compat-base, pgoyette-compat-20190127, pgoyette-compat-20190118, pgoyette-compat-1226, pgoyette-compat-1126, pgoyette-compat-1020, pgoyette-compat-0930, pgoyette-compat-0906, pgoyette-compat-0728, pgoyette-compat-0625, pgoyette-compat-0521, pgoyette-compat-0502, pgoyette-compat-0422, pgoyette-compat-0415, pgoyette-compat-0407, pgoyette-compat-0330, pgoyette-compat-0322, pgoyette-compat-0315, pgoyette-compat, netbsd-9-base, netbsd-9-1-RELEASE, netbsd-9-0-RELEASE, netbsd-9-0-RC2, netbsd-9-0-RC1, netbsd-9, is-mlppp-base, is-mlppp, HEAD

Implement tcgetwinsize() and tcsetwinsize() in libc, with access
via <termios.h> (and document them.)   Bump libc minor number for them.

Arrange for "struct winsize" to become visible in <termios.h>

Fix stty(1) so that "cols" is reported as the arg to set number of columns,
and "columns" is the alias, rather than the other way around, as "cols" is
what has been added to POSIX.

This is to conform with updates to be included in 1003.1 issue 8
(whenever that gets published) currently available at:
  http://austingroupbugs.net/view.php?id=1053   (see note 3863)
  http://austingroupbugs.net/view.php?id=1151   (see note 3856)

/*	$NetBSD: tcgetwinsize.c,v 1.1 2017/10/25 06:32:59 kre Exp $	*/

/*-
 * Copyright (c) 2017 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by 
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: tcgetwinsize.c,v 1.1 2017/10/25 06:32:59 kre Exp $");
#endif /* LIBC_SCCS and not lint */

#ifndef _NETBSD_SOURCE
#define _NETBSD_SOURCE		/* need the ioctl values to be in <termios.h> */
#endif

#include <sys/ioctl.h>
#include <termios.h>

int
tcgetwinsize(int fd, struct winsize *ws)
{
	return ioctl(fd, TIOCGWINSZ, ws);
}