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- /*
- SYSVish version:
-
- Copyright (C) 1996 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
-
- 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.
-
- * BSDish version:
- *
- * 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.
- *
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)logwtmp.c 8.1 (Berkeley) 6/4/93";
- #endif /* not lint */
-
- #ifdef HAVE_CONFIG_H
- #include <config.h>
- #endif
-
- #include <sys/types.h>
- #include <sys/time.h>
- #include <sys/stat.h>
-
- #include <fcntl.h>
- #include <utmp.h>
- #include <unistd.h>
- #include <stdio.h>
- #include <string.h>
- #include "extern.h"
-
- #if !defined (_PATH_WTMP) && defined (WTMP_FILE)
- #define _PATH_WTMP WTMP_FILE
- #endif
-
- /*
- * Modified version of logwtmp that holds wtmp file open
- * after first call, for use with ftp (which may chroot
- * after login, but before logout).
- */
- void
- logwtmp(line, name, host)
- const char *line, *name, *host;
- {
- struct utmp ut;
-
- /* Set information in new entry. */
- bzero (&ut, sizeof (ut));
- #if _HAVE_UT_TYPE - 0
- ut.ut_type = USER_PROCESS;
- #endif
- strncpy (ut.ut_line, line, sizeof ut.ut_line);
- strncpy (ut.ut_name, name, sizeof ut.ut_name);
- #if _HAVE_UT_HOST - 0
- strncpy (ut.ut_host, host, sizeof ut.ut_host);
- #endif
-
- #if _HAVE_UT_TV - 0
- gettimeofday (&ut.ut_tv, NULL);
- #else
- time (&ut.ut_time);
- #endif
-
- #if defined (HAVE_UTMPNAME) && defined (HAVE_SETUTENT_R)
- /* XXX I think frobbing the details of DATA is GNU libc specific. */
- {
- static struct utmp_data data = { -1 };
-
- if (data.ut_fd < 0)
- /* Open the file. */
- {
- /* Tell that we want to use the WTMP file. */
- if (utmpname (_PATH_WTMP) == 0)
- return;
-
- /* Open WTMP file. */
- setutent_r (&data);
- }
-
- /* Position at end of file. */
- data.loc_utmp = lseek (data.ut_fd, 0, SEEK_END);
- if (data.loc_utmp == -1)
- return;
-
- /* Write the entry. */
- pututline_r (&ut, &data);
- }
- #else
- /* Do things the old way. */
- {
- struct utmp ut;
- struct stat buf;
- static int fd = -1;
-
- if (fd < 0 && (fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) < 0)
- return;
- if (fstat(fd, &buf) == 0) {
- if (write(fd, (char *)&ut, sizeof(struct utmp)) !=
- sizeof(struct utmp))
- (void)ftruncate(fd, buf.st_size);
- }
- }
- #endif
- }
-