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freebsd-dev/lib/libulog/ulog_login.c

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Add a new library: libulog. One of the things I really want to do, is to get rid of the limitations of our current utmp(5) mechanism: - It only allows 8 byte TTY device names. - The hostname only allows 16 bytes of storage. I'm not a big fan of <utmpx.h>, but I think we should at least try to add parts of it. Unfortunately we cannot implement <utmpx.h>, because we miss various fields, such as ut_id, ut_pid, etc. The API provided by libulog shares some similarities with <utmpx.h>, so it shouldn't be too hard to port these applications eventually. In most simple cases, it should just be a matter of removing the ulog_ prefix everywhere. As a bonus, it also implements a function called ulog_login_pseudo(), which allows unprivileged applications to write log entries, provided they have a valid file descriptor to a pseudo-terminal master device. libulog will allow a smoother transition to a new file format by adding a library interface to deal with utmp/wtmp/lastlog files. I initially thought about adding the functionality to libutil, but because I'm not planning on keeping this library around forever, we'd better keep it separated. Next items on the todo list: 1. Port applications in the base system (and ports) to libulog, instead of letting them use <utmp.h>. 2. Remove <utmp.h>, implement <utmpx.h> and reimplement this library on top. 3. Port as many applications as possible back to <utmpx.h>.
2009-12-03 15:48:24 +00:00
/*-
* 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("$FreeBSD$");
Massively extend libulog: - Just like struct utmp, store strings inside struct utmpx itself. This is needed to make things like pututxline() work. - Add ut_id and ut_pid fields, even though they have little use in our implementation. - It turns out our "reboot" wtmp entries indicate a system boot, so remove REBOOT_TIME - Implement getutxline() and pututxline - Add getutxuser() and setutxfile(), which allows us to crawl wtmp and lastlog files as well. - Add _ULOG_POSIX_NAMES, so we can already use the POSIX names if we really want to.
2009-12-05 19:53:29 +00:00
#include <sys/time.h>
Add a new library: libulog. One of the things I really want to do, is to get rid of the limitations of our current utmp(5) mechanism: - It only allows 8 byte TTY device names. - The hostname only allows 16 bytes of storage. I'm not a big fan of <utmpx.h>, but I think we should at least try to add parts of it. Unfortunately we cannot implement <utmpx.h>, because we miss various fields, such as ut_id, ut_pid, etc. The API provided by libulog shares some similarities with <utmpx.h>, so it shouldn't be too hard to port these applications eventually. In most simple cases, it should just be a matter of removing the ulog_ prefix everywhere. As a bonus, it also implements a function called ulog_login_pseudo(), which allows unprivileged applications to write log entries, provided they have a valid file descriptor to a pseudo-terminal master device. libulog will allow a smoother transition to a new file format by adding a library interface to deal with utmp/wtmp/lastlog files. I initially thought about adding the functionality to libutil, but because I'm not planning on keeping this library around forever, we'd better keep it separated. Next items on the todo list: 1. Port applications in the base system (and ports) to libulog, instead of letting them use <utmp.h>. 2. Remove <utmp.h>, implement <utmpx.h> and reimplement this library on top. 3. Port as many applications as possible back to <utmpx.h>.
2009-12-03 15:48:24 +00:00
#include <paths.h>
#include <string.h>
#include "ulog_internal.h"
void
ulog_login(const char *line, const char *user, const char *host)
{
Massively extend libulog: - Just like struct utmp, store strings inside struct utmpx itself. This is needed to make things like pututxline() work. - Add ut_id and ut_pid fields, even though they have little use in our implementation. - It turns out our "reboot" wtmp entries indicate a system boot, so remove REBOOT_TIME - Implement getutxline() and pututxline - Add getutxuser() and setutxfile(), which allows us to crawl wtmp and lastlog files as well. - Add _ULOG_POSIX_NAMES, so we can already use the POSIX names if we really want to.
2009-12-05 19:53:29 +00:00
struct ulog_utmpx utx;
Add a new library: libulog. One of the things I really want to do, is to get rid of the limitations of our current utmp(5) mechanism: - It only allows 8 byte TTY device names. - The hostname only allows 16 bytes of storage. I'm not a big fan of <utmpx.h>, but I think we should at least try to add parts of it. Unfortunately we cannot implement <utmpx.h>, because we miss various fields, such as ut_id, ut_pid, etc. The API provided by libulog shares some similarities with <utmpx.h>, so it shouldn't be too hard to port these applications eventually. In most simple cases, it should just be a matter of removing the ulog_ prefix everywhere. As a bonus, it also implements a function called ulog_login_pseudo(), which allows unprivileged applications to write log entries, provided they have a valid file descriptor to a pseudo-terminal master device. libulog will allow a smoother transition to a new file format by adding a library interface to deal with utmp/wtmp/lastlog files. I initially thought about adding the functionality to libutil, but because I'm not planning on keeping this library around forever, we'd better keep it separated. Next items on the todo list: 1. Port applications in the base system (and ports) to libulog, instead of letting them use <utmp.h>. 2. Remove <utmp.h>, implement <utmpx.h> and reimplement this library on top. 3. Port as many applications as possible back to <utmpx.h>.
2009-12-03 15:48:24 +00:00
/* Remove /dev/ component. */
if (strncmp(line, _PATH_DEV, sizeof _PATH_DEV - 1) == 0)
line += sizeof _PATH_DEV - 1;
Massively extend libulog: - Just like struct utmp, store strings inside struct utmpx itself. This is needed to make things like pututxline() work. - Add ut_id and ut_pid fields, even though they have little use in our implementation. - It turns out our "reboot" wtmp entries indicate a system boot, so remove REBOOT_TIME - Implement getutxline() and pututxline - Add getutxuser() and setutxfile(), which allows us to crawl wtmp and lastlog files as well. - Add _ULOG_POSIX_NAMES, so we can already use the POSIX names if we really want to.
2009-12-05 19:53:29 +00:00
memset(&utx, 0, sizeof utx);
Add a new library: libulog. One of the things I really want to do, is to get rid of the limitations of our current utmp(5) mechanism: - It only allows 8 byte TTY device names. - The hostname only allows 16 bytes of storage. I'm not a big fan of <utmpx.h>, but I think we should at least try to add parts of it. Unfortunately we cannot implement <utmpx.h>, because we miss various fields, such as ut_id, ut_pid, etc. The API provided by libulog shares some similarities with <utmpx.h>, so it shouldn't be too hard to port these applications eventually. In most simple cases, it should just be a matter of removing the ulog_ prefix everywhere. As a bonus, it also implements a function called ulog_login_pseudo(), which allows unprivileged applications to write log entries, provided they have a valid file descriptor to a pseudo-terminal master device. libulog will allow a smoother transition to a new file format by adding a library interface to deal with utmp/wtmp/lastlog files. I initially thought about adding the functionality to libutil, but because I'm not planning on keeping this library around forever, we'd better keep it separated. Next items on the todo list: 1. Port applications in the base system (and ports) to libulog, instead of letting them use <utmp.h>. 2. Remove <utmp.h>, implement <utmpx.h> and reimplement this library on top. 3. Port as many applications as possible back to <utmpx.h>.
2009-12-03 15:48:24 +00:00
Massively extend libulog: - Just like struct utmp, store strings inside struct utmpx itself. This is needed to make things like pututxline() work. - Add ut_id and ut_pid fields, even though they have little use in our implementation. - It turns out our "reboot" wtmp entries indicate a system boot, so remove REBOOT_TIME - Implement getutxline() and pututxline - Add getutxuser() and setutxfile(), which allows us to crawl wtmp and lastlog files as well. - Add _ULOG_POSIX_NAMES, so we can already use the POSIX names if we really want to.
2009-12-05 19:53:29 +00:00
/* XXX: ut_id, ut_pid missing. */
utx.ut_type = USER_PROCESS;
strncpy(utx.ut_line, line, sizeof utx.ut_line);
strncpy(utx.ut_user, user, sizeof utx.ut_user);
strncpy(utx.ut_host, host, sizeof utx.ut_host);
gettimeofday(&utx.ut_tv, NULL);
Add a new library: libulog. One of the things I really want to do, is to get rid of the limitations of our current utmp(5) mechanism: - It only allows 8 byte TTY device names. - The hostname only allows 16 bytes of storage. I'm not a big fan of <utmpx.h>, but I think we should at least try to add parts of it. Unfortunately we cannot implement <utmpx.h>, because we miss various fields, such as ut_id, ut_pid, etc. The API provided by libulog shares some similarities with <utmpx.h>, so it shouldn't be too hard to port these applications eventually. In most simple cases, it should just be a matter of removing the ulog_ prefix everywhere. As a bonus, it also implements a function called ulog_login_pseudo(), which allows unprivileged applications to write log entries, provided they have a valid file descriptor to a pseudo-terminal master device. libulog will allow a smoother transition to a new file format by adding a library interface to deal with utmp/wtmp/lastlog files. I initially thought about adding the functionality to libutil, but because I'm not planning on keeping this library around forever, we'd better keep it separated. Next items on the todo list: 1. Port applications in the base system (and ports) to libulog, instead of letting them use <utmp.h>. 2. Remove <utmp.h>, implement <utmpx.h> and reimplement this library on top. 3. Port as many applications as possible back to <utmpx.h>.
2009-12-03 15:48:24 +00:00
Massively extend libulog: - Just like struct utmp, store strings inside struct utmpx itself. This is needed to make things like pututxline() work. - Add ut_id and ut_pid fields, even though they have little use in our implementation. - It turns out our "reboot" wtmp entries indicate a system boot, so remove REBOOT_TIME - Implement getutxline() and pututxline - Add getutxuser() and setutxfile(), which allows us to crawl wtmp and lastlog files as well. - Add _ULOG_POSIX_NAMES, so we can already use the POSIX names if we really want to.
2009-12-05 19:53:29 +00:00
ulog_pututxline(&utx);
Add a new library: libulog. One of the things I really want to do, is to get rid of the limitations of our current utmp(5) mechanism: - It only allows 8 byte TTY device names. - The hostname only allows 16 bytes of storage. I'm not a big fan of <utmpx.h>, but I think we should at least try to add parts of it. Unfortunately we cannot implement <utmpx.h>, because we miss various fields, such as ut_id, ut_pid, etc. The API provided by libulog shares some similarities with <utmpx.h>, so it shouldn't be too hard to port these applications eventually. In most simple cases, it should just be a matter of removing the ulog_ prefix everywhere. As a bonus, it also implements a function called ulog_login_pseudo(), which allows unprivileged applications to write log entries, provided they have a valid file descriptor to a pseudo-terminal master device. libulog will allow a smoother transition to a new file format by adding a library interface to deal with utmp/wtmp/lastlog files. I initially thought about adding the functionality to libutil, but because I'm not planning on keeping this library around forever, we'd better keep it separated. Next items on the todo list: 1. Port applications in the base system (and ports) to libulog, instead of letting them use <utmp.h>. 2. Remove <utmp.h>, implement <utmpx.h> and reimplement this library on top. 3. Port as many applications as possible back to <utmpx.h>.
2009-12-03 15:48:24 +00:00
}
void
ulog_logout(const char *line)
{
Massively extend libulog: - Just like struct utmp, store strings inside struct utmpx itself. This is needed to make things like pututxline() work. - Add ut_id and ut_pid fields, even though they have little use in our implementation. - It turns out our "reboot" wtmp entries indicate a system boot, so remove REBOOT_TIME - Implement getutxline() and pututxline - Add getutxuser() and setutxfile(), which allows us to crawl wtmp and lastlog files as well. - Add _ULOG_POSIX_NAMES, so we can already use the POSIX names if we really want to.
2009-12-05 19:53:29 +00:00
struct ulog_utmpx utx;
Add a new library: libulog. One of the things I really want to do, is to get rid of the limitations of our current utmp(5) mechanism: - It only allows 8 byte TTY device names. - The hostname only allows 16 bytes of storage. I'm not a big fan of <utmpx.h>, but I think we should at least try to add parts of it. Unfortunately we cannot implement <utmpx.h>, because we miss various fields, such as ut_id, ut_pid, etc. The API provided by libulog shares some similarities with <utmpx.h>, so it shouldn't be too hard to port these applications eventually. In most simple cases, it should just be a matter of removing the ulog_ prefix everywhere. As a bonus, it also implements a function called ulog_login_pseudo(), which allows unprivileged applications to write log entries, provided they have a valid file descriptor to a pseudo-terminal master device. libulog will allow a smoother transition to a new file format by adding a library interface to deal with utmp/wtmp/lastlog files. I initially thought about adding the functionality to libutil, but because I'm not planning on keeping this library around forever, we'd better keep it separated. Next items on the todo list: 1. Port applications in the base system (and ports) to libulog, instead of letting them use <utmp.h>. 2. Remove <utmp.h>, implement <utmpx.h> and reimplement this library on top. 3. Port as many applications as possible back to <utmpx.h>.
2009-12-03 15:48:24 +00:00
/* Remove /dev/ component. */
if (strncmp(line, _PATH_DEV, sizeof _PATH_DEV - 1) == 0)
line += sizeof _PATH_DEV - 1;
Massively extend libulog: - Just like struct utmp, store strings inside struct utmpx itself. This is needed to make things like pututxline() work. - Add ut_id and ut_pid fields, even though they have little use in our implementation. - It turns out our "reboot" wtmp entries indicate a system boot, so remove REBOOT_TIME - Implement getutxline() and pututxline - Add getutxuser() and setutxfile(), which allows us to crawl wtmp and lastlog files as well. - Add _ULOG_POSIX_NAMES, so we can already use the POSIX names if we really want to.
2009-12-05 19:53:29 +00:00
memset(&utx, 0, sizeof utx);
/* XXX: ut_id, ut_pid missing. ut_line not needed */
utx.ut_type = DEAD_PROCESS;
strncpy(utx.ut_line, line, sizeof utx.ut_line);
gettimeofday(&utx.ut_tv, NULL);
Add a new library: libulog. One of the things I really want to do, is to get rid of the limitations of our current utmp(5) mechanism: - It only allows 8 byte TTY device names. - The hostname only allows 16 bytes of storage. I'm not a big fan of <utmpx.h>, but I think we should at least try to add parts of it. Unfortunately we cannot implement <utmpx.h>, because we miss various fields, such as ut_id, ut_pid, etc. The API provided by libulog shares some similarities with <utmpx.h>, so it shouldn't be too hard to port these applications eventually. In most simple cases, it should just be a matter of removing the ulog_ prefix everywhere. As a bonus, it also implements a function called ulog_login_pseudo(), which allows unprivileged applications to write log entries, provided they have a valid file descriptor to a pseudo-terminal master device. libulog will allow a smoother transition to a new file format by adding a library interface to deal with utmp/wtmp/lastlog files. I initially thought about adding the functionality to libutil, but because I'm not planning on keeping this library around forever, we'd better keep it separated. Next items on the todo list: 1. Port applications in the base system (and ports) to libulog, instead of letting them use <utmp.h>. 2. Remove <utmp.h>, implement <utmpx.h> and reimplement this library on top. 3. Port as many applications as possible back to <utmpx.h>.
2009-12-03 15:48:24 +00:00
Massively extend libulog: - Just like struct utmp, store strings inside struct utmpx itself. This is needed to make things like pututxline() work. - Add ut_id and ut_pid fields, even though they have little use in our implementation. - It turns out our "reboot" wtmp entries indicate a system boot, so remove REBOOT_TIME - Implement getutxline() and pututxline - Add getutxuser() and setutxfile(), which allows us to crawl wtmp and lastlog files as well. - Add _ULOG_POSIX_NAMES, so we can already use the POSIX names if we really want to.
2009-12-05 19:53:29 +00:00
ulog_pututxline(&utx);
Add a new library: libulog. One of the things I really want to do, is to get rid of the limitations of our current utmp(5) mechanism: - It only allows 8 byte TTY device names. - The hostname only allows 16 bytes of storage. I'm not a big fan of <utmpx.h>, but I think we should at least try to add parts of it. Unfortunately we cannot implement <utmpx.h>, because we miss various fields, such as ut_id, ut_pid, etc. The API provided by libulog shares some similarities with <utmpx.h>, so it shouldn't be too hard to port these applications eventually. In most simple cases, it should just be a matter of removing the ulog_ prefix everywhere. As a bonus, it also implements a function called ulog_login_pseudo(), which allows unprivileged applications to write log entries, provided they have a valid file descriptor to a pseudo-terminal master device. libulog will allow a smoother transition to a new file format by adding a library interface to deal with utmp/wtmp/lastlog files. I initially thought about adding the functionality to libutil, but because I'm not planning on keeping this library around forever, we'd better keep it separated. Next items on the todo list: 1. Port applications in the base system (and ports) to libulog, instead of letting them use <utmp.h>. 2. Remove <utmp.h>, implement <utmpx.h> and reimplement this library on top. 3. Port as many applications as possible back to <utmpx.h>.
2009-12-03 15:48:24 +00:00
}
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