freebsd-nq/lib/libulog/utempter.c
Ed Schouten 04b0c5bbfa Add a libutempter compatibility interface to libulog.
The ulog_login_pseudo(3) and ulog_logout_pseudo(3) interfaces provide a
functionality identical to what libutempter has to offer. Just transform
libutempter's calls into the before mentioned functions.

libutempter doesn't work with utmpx, so instead of fixing I thought the
easiest way would be to integrate this functionality. libutempter is
used by applications like xterm and the KDE libraries, so if I ever
change the underlying file format, these applications will keep working
automatically.

Also increase __FreeBSD_version to indicate the addition (as well as the
import of libulog).
2009-12-06 20:30:21 +00:00

85 lines
2.1 KiB
C

/*-
* Copyright (c) 2009 Ed Schouten <ed@FreeBSD.org>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "ulog_internal.h"
#include "utempter.h"
static int last_fd = -1;
int
utempter_add_record(int fd, const char *host)
{
ulog_login_pseudo(fd, host);
last_fd = fd;
return (0);
}
int
utempter_remove_added_record(void)
{
if (last_fd < 0)
return (0);
ulog_logout_pseudo(last_fd);
last_fd = -1;
return (0);
}
int
utempter_remove_record(int fd)
{
ulog_logout_pseudo(fd);
if (last_fd == fd)
last_fd = -1;
return (0);
}
void
addToUtmp(const char *pty __unused, const char *host, int fd)
{
utempter_add_record(fd, host);
}
void
removeFromUtmp(void)
{
utempter_remove_added_record();
}
void
removeLineFromUtmp(const char *pty __unused, int fd)
{
utempter_remove_record(fd);
}