1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28/*	  All Rights Reserved  	*/
29
30
31#pragma ident	"%Z%%M%	%I%	%E% SMI"
32
33#include	<unistd.h>
34#include	<string.h>
35#include	<sys/termios.h>
36/*--------------------------------------------------------- */
37/* the follwing are here so we can use routines in ulockf.c */
38int	Debug = 0;
39char	*Bnptr;
40/* dummies for using uucp .o routines */
41/*VARARGS*/
42/*ARGSUSED*/
43void
44assert(char *s1, char *s2, int i1, char *s3, int i2)
45{}
46
47void
48cleanup(){}
49
50/*ARGSUSED*/
51void
52logent(char *s1, char *s2)
53{}		/* so we can load ulockf() */
54/*---------------------------------------------------------- */
55extern	int	lockf();
56
57/*
58 *	lastname	- If the path name starts with "/dev/",
59 *			  return the rest of the string.
60 *			- Otherwise, return the last token of the path name
61 */
62char *
63lastname(char *name)
64{
65	char	*sp, *p;
66
67	sp = name;
68	if (strncmp(sp, "/dev/", 5) == 0)
69		sp += 5;
70	else
71		while ((p = (char *)strchr(sp,'/')) != (char *)NULL) {
72			sp = ++p;
73		}
74	return (sp);
75}
76
77/*
78 *	tm_lock(fd)	- set advisory lock on the device
79 */
80int
81tm_lock(int fd)
82{
83	extern	int	fd_mklock();
84	return (fd_mklock(fd));
85}
86
87/*
88 *	tm_checklock	- check if advisory lock is on
89 */
90int
91tm_checklock(int fd)
92{
93	extern	int	fd_cklock();
94	return (fd_cklock(fd));
95}
96
97/*
98 * check_session(fd) - check if a session established on fd
99 *		       return 1 if session exists, otherwise, return 0.
100 *
101 */
102int
103check_session(int fd)
104{
105	pid_t	sid;
106
107	if (ioctl(fd, TIOCGSID, &sid) == -1)
108		return(0);
109	else if (sid == 0)
110		return(0);
111	else
112		return(1);
113}
114