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/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <string.h>
#include <utmp.h>
#include <time.h>
#include <sys/time.h>
int
logout (const char *line)
{
struct utmp tmp, utbuf;
struct utmp *ut;
int result = 0;
/* Tell that we want to use the UTMP file. */
if (utmpname (_PATH_UTMP) == -1)
return 0;
/* Open UTMP file. */
setutent ();
/* Fill in search information. */
tmp.ut_type = USER_PROCESS;
strncpy (tmp.ut_line, line, sizeof tmp.ut_line);
/* Read the record. */
if (getutline_r (&tmp, &utbuf, &ut) >= 0)
{
/* Clear information about who & from where. */
memset (ut->ut_name, '\0', sizeof ut->ut_name);
memset (ut->ut_host, '\0', sizeof ut->ut_host);
struct __timespec64 ts;
__clock_gettime64 (CLOCK_REALTIME, &ts);
TIMESPEC_TO_TIMEVAL (&ut->ut_tv, &ts);
ut->ut_type = DEAD_PROCESS;
if (pututline (ut) != NULL)
result = 1;
}
/* Close UTMP file. */
endutent ();
return result;
}
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