/* Copyright (C) 1996-2017 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 <http://www.gnu.org/licenses/>. */ #include <errno.h> #include <string.h> #include <utmp.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. */ #if _HAVE_UT_TYPE - 0 tmp.ut_type = USER_PROCESS; #endif 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); #if _HAVE_UT_HOST - 0 memset (ut->ut_host, '\0', sizeof ut->ut_host); #endif #if _HAVE_UT_TV - 0 struct timeval tv; __gettimeofday (&tv, NULL); ut->ut_tv.tv_sec = tv.tv_sec; ut->ut_tv.tv_usec = tv.tv_usec; #else ut->ut_time = time (NULL); #endif #if _HAVE_UT_TYPE - 0 ut->ut_type = DEAD_PROCESS; #endif if (pututline (ut) != NULL) result = 1; } /* Close UTMP file. */ endutent (); return result; }