/*
 * Copyright (c) 1983, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * @(#)log.c    8.1 (Berkeley) 6/6/93
 * $FreeBSD: src/usr.bin/tip/tip/log.c,v 1.4 1999/08/28 01:06:34 peter Exp $
 */

#include "tip.h"
#include <err.h>

static  FILE *flog = NULL;

/*
 * Log file maintenance routines
 */

void
logent(char *group, char *num, char *acu, char *message)
{
        char *user, *timestamp;
        struct passwd *pwd;
        time_t t;

        if (flog == NULL)
                return;
        if (flock(fileno(flog), LOCK_EX) < 0) {
                warn("flock");
                return;
        }
        if ((user = getlogin()) == NULL) {
                if ((pwd = getpwuid(getuid())) == NULL)
                        user = "???";
                else
                        user = pwd->pw_name;
        }
        t = time(0);
        timestamp = ctime(&t);
        timestamp[24] = '\0';
        fprintf(flog, "%s (%s) <%s, %s, %s> %s\n",
                user, timestamp, group, "", acu, message);
        (void) fflush(flog);
        (void) flock(fileno(flog), LOCK_UN);
}

void
loginit(void)
{
        flog = fopen(value(LOG), "a");
        if (flog == NULL)
                fprintf(stderr, "can't open log file %s.\r\n", value(LOG));
}