usr/src/cmd/oamuser/user/isbusy.c

   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
  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 }