diff options
Diffstat (limited to 'login/logout.c')
-rw-r--r-- | login/logout.c | 121 |
1 files changed, 58 insertions, 63 deletions
diff --git a/login/logout.c b/login/logout.c index 40ae25456f..d47a392699 100644 --- a/login/logout.c +++ b/login/logout.c @@ -1,72 +1,67 @@ -/* - * Copyright (c) 1988, 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. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. 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. - */ +/* Copyright (C) 1996 Free Software Foundation, Inc. +This file is part of the GNU C Library. +Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996. -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)logout.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. -#include <sys/types.h> -#include <sys/time.h> +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 +Library General Public License for more details. -#include <fcntl.h> -#include <utmp.h> -#include <unistd.h> -#include <stdlib.h> -#include <string.h> +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ -typedef struct utmp UTMP; +#include <errno.h> +#include <string.h> +#include <utmp.h> +#include <sys/time.h> int -logout(line) - register const char *line; +logout (const char *line) { - register int fd; - UTMP ut; - int rval; + struct utmp_data data; + struct utmp tmp; + struct utmp *ut; + int result = 0; + + /* Tell that we want to use the UTMP file. */ + if (utmpname (_PATH_UTMP) == 0) + return 0; + + /* Open UTMP file. */ + setutent_r (&data); + + /* Fill in search information. */ +#if _HAVE_UT_TYPE - 0 + tmp.ut_type = USER_PROCESS; +#endif + strncpy (tmp.ut_line, line, UT_LINESIZE); + + /* Read the record. */ + if (getutline_r (&tmp, &ut, &data) >= 0 || errno == ESRCH) + { + /* Clear information about who & from where. */ + bzero (ut->ut_name, UT_NAMESIZE); + bzero (ut->ut_host, UT_HOSTSIZE); + +#if _HAVE_UT_TV - 0 + gettimeofday (&ut->ut_tv, NULL); +#else + time (&ut->ut_time); +#endif + + if (pututline_r (ut, &data) >= 0) + result = 1; + } + + /* Close UTMP file. */ + endutent_r (&data); - if ((fd = open(_PATH_UTMP, O_RDWR, 0)) < 0) - return(0); - rval = 0; - while (read(fd, &ut, sizeof(UTMP)) == sizeof(UTMP)) { - if (!ut.ut_name[0] || strncmp(ut.ut_line, line, UT_LINESIZE)) - continue; - bzero(ut.ut_name, UT_NAMESIZE); - bzero(ut.ut_host, UT_HOSTSIZE); - (void)time(&ut.ut_time); - (void)lseek(fd, -(off_t)sizeof(UTMP), L_INCR); - (void)write(fd, &ut, sizeof(UTMP)); - rval = 1; - } - (void)close(fd); - return(rval); + return result; } |