64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/* Copyright (C) 1996-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <string.h>
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#include <utmp.h>
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#include <time.h>
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#include <sys/time.h>
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int
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logout (const char *line)
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{
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struct utmp tmp, utbuf;
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struct utmp *ut;
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int result = 0;
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/* Tell that we want to use the UTMP file. */
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if (utmpname (_PATH_UTMP) == -1)
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return 0;
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/* Open UTMP file. */
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setutent ();
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/* Fill in search information. */
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tmp.ut_type = USER_PROCESS;
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strncpy (tmp.ut_line, line, sizeof tmp.ut_line);
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/* Read the record. */
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if (getutline_r (&tmp, &utbuf, &ut) >= 0)
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{
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/* Clear information about who & from where. */
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memset (ut->ut_name, '\0', sizeof ut->ut_name);
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memset (ut->ut_host, '\0', sizeof ut->ut_host);
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struct timespec ts;
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__clock_gettime (CLOCK_REALTIME, &ts);
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TIMESPEC_TO_TIMEVAL (&ut->ut_tv, &ts);
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ut->ut_type = DEAD_PROCESS;
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if (pututline (ut) != NULL)
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result = 1;
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}
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/* Close UTMP file. */
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endutent ();
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return result;
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}
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