root/usr/src/cmd/acct/utmp2wtmp.c
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*        All Rights Reserved   */

/*
 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*
 *      create entries for users who are still logged on when accounting
 *      is being run. Look at utmpx, and update the time stamp. New info
 *      goes to wtmpx. Called by runacct.
 */

#include <stdio.h>
#include <sys/types.h>
#include <utmpx.h>
#include <time.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>

int
main(int argc, char **argv)
{
        struct utmpx *utmpx;
        FILE *fp;

        fp = fopen(WTMPX_FILE, "a+");
        if (fp == NULL) {
                fprintf(stderr, "%s: %s: %s\n", argv[0],
                    WTMPX_FILE, strerror(errno));
                exit(1);
        }

        while ((utmpx = getutxent()) != NULL) {
                if ((utmpx->ut_type == USER_PROCESS) && !(nonuserx(*utmpx))) {
                        time(&utmpx->ut_xtime);
                        fwrite(utmpx, sizeof (*utmpx), 1, fp);
                }
        }
        fclose(fp);
        exit(0);
}