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 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
23 /* All Rights Reserved */
24
25 /*
26 * Copyright (c) 1998 by Sun Microsystems, Inc.
27 * All rights reserved.
28 */
29
30 #ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.3 */
31
32 #include <stdio.h>
33 #include <string.h>
34 #include <sys/types.h>
35 #include <utmpx.h>
36
37 #ifndef TRUE
38 #define TRUE 1
39 #define FALSE 0
40 #endif
41
42 int isbusy(char *);
43
44 /* Is this login being used */
45 int
isbusy(char * login)46 isbusy(char *login)
47 {
48 struct utmpx *utxptr;
49
50 setutxent();
51 while ((utxptr = getutxent()) != NULL)
52 /*
53 * If login is in the utmp file, and that process
54 * isn't dead, then it "is_busy()"
55 */
56 if ((strncmp(login, utxptr->ut_user,
57 sizeof (utxptr->ut_user)) == 0) && \
58 utxptr->ut_type != DEAD_PROCESS)
59 return (TRUE);
60
61 return (FALSE);
62 }
63