82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
/* $NetBSD: pty.c,v 1.4 2014/01/08 02:17:30 christos Exp $ */
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/*-
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* Copyright (c) 2004 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: pty.c,v 1.4 2014/01/08 02:17:30 christos Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include "namespace.h"
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#include <fcntl.h>
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#include <string.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <sys/ioctl.h>
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int
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grantpt(int fildes)
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{
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return ioctl(fildes, TIOCGRANTPT, 0);
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}
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int
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/*ARGSUSED*/
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unlockpt(int fildes)
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{
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return 0;
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}
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char *
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ptsname(int fildes)
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{
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static struct ptmget pm;
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if (ioctl(fildes, TIOCPTSNAME, &pm) == -1)
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return NULL;
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return pm.sn;
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}
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int
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ptsname_r(int fildes, char *buf, size_t buflen) {
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struct ptmget pm;
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if (buf == NULL)
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return EINVAL;
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if (ioctl(fildes, TIOCPTSNAME, &pm) == -1)
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return errno;
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if (strlcpy(buf, pm.sn, buflen) > buflen)
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return ERANGE;
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return 0;
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}
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