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/*
* wtmp.c
* This file contains routines to deal with the wtmp file.
*/
/*
* Copyright 2017 The OpenRC Authors.
* See the Authors file at the top-level directory of this distribution and
* https://github.com/OpenRC/openrc/blob/HEAD/AUTHORS
*
* This file is part of OpenRC. It is subject to the license terms in
* the LICENSE file found in the top-level directory of this
* distribution and at https://github.com/OpenRC/openrc/blob/HEAD/LICENSE
* This file may not be copied, modified, propagated, or distributed
* except according to the terms contained in the LICENSE file.
*/
#include <stdio.h>
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/utsname.h>
#include <utmp.h>
#include "wtmp.h"
void log_wtmp(const char *user, const char *id, pid_t pid, int type,
const char *line)
{
struct timeval tv;
struct utmp utmp;
struct utsname uname_buf;
memset(&utmp, 0, sizeof(utmp));
gettimeofday(&tv, NULL);
utmp.ut_tv.tv_sec = tv.tv_sec;
utmp.ut_tv.tv_usec = tv.tv_usec;
utmp.ut_pid = pid;
utmp.ut_type = type;
strncpy(utmp.ut_name, user, sizeof(utmp.ut_name));
strncpy(utmp.ut_id , id , sizeof(utmp.ut_id ));
strncpy(utmp.ut_line, line, sizeof(utmp.ut_line));
/* Put the OS version in place of the hostname */
if (uname(&uname_buf) == 0)
strncpy(utmp.ut_host, uname_buf.release, sizeof(utmp.ut_host));
updwtmp(WTMP_FILE, &utmp);
}
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