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freebsd/lib/libulog/ulog.h
Ed Schouten 42782e4717 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

109 lines
3.5 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.
*
* $FreeBSD$
*/
#ifndef _ULOG_H_
#define _ULOG_H_
#include <sys/cdefs.h>
#include <sys/_timeval.h>
#include <sys/_types.h>
#ifndef _PID_T_DECLARED
typedef __pid_t pid_t;
#define _PID_T_DECLARED
#endif
/*
* libulog.
*
* This library is provided as a migratory tool towards <utmpx.h>. We
* cannot yet implement <utmpx.h>, because our on-disk file format lacks
* various fields. <utmpx.h> also has some shortcomings. Ideally we
* want to allow logging of user login records generated by unprivileged
* processes as well, provided that they hold a file descriptor to a
* pseudo-terminal master device.
*
* This library (or at least parts of it) will hopefully deprecate over
* time, when we provide the <utmpx.h> API.
*/
struct ulog_utmpx {
char ut_user[32];
char ut_id[8]; /* XXX: unsupported. */
char ut_line[32];
char ut_host[256];
pid_t ut_pid; /* XXX: unsupported. */
short ut_type;
#define EMPTY 0
#define BOOT_TIME 1
#define OLD_TIME 2
#define NEW_TIME 3
#define USER_PROCESS 4
#define INIT_PROCESS 5 /* XXX: unsupported. */
#define LOGIN_PROCESS 6 /* XXX: unsupported. */
#define DEAD_PROCESS 7
#define SHUTDOWN_TIME 8
struct timeval ut_tv;
};
__BEGIN_DECLS
/* POSIX routines. */
void ulog_endutxent(void);
struct ulog_utmpx *ulog_getutxent(void);
#if 0
struct ulog_utmpx *ulog_getutxid(const struct ulog_utmpx *);
#endif
struct ulog_utmpx *ulog_getutxline(const struct ulog_utmpx *);
struct ulog_utmpx *ulog_pututxline(const struct ulog_utmpx *);
void ulog_setutxent(void);
/* Extensions. */
struct ulog_utmpx *ulog_getutxuser(const char *);
int ulog_setutxfile(int, const char *);
#define UTXF_UTMP 0
#define UTXF_WTMP 1
#define UTXF_LASTLOG 2
/* Login/logout utility functions. */
void ulog_login(const char *, const char *, const char *);
void ulog_login_pseudo(int, const char *);
void ulog_logout(const char *);
void ulog_logout_pseudo(int);
__END_DECLS
#ifdef _ULOG_POSIX_NAMES
#define utmpx ulog_utmpx
#define endutxent ulog_endutxent
#define getutxent ulog_getutxent
#define getutxline ulog_getutxline
#define pututxline ulog_pututxline
#define setutxent ulog_setutxent
#endif /* _ULOG_POSIX_NAMES */
#endif /* !_ULOG_H_ */