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- /* The `struct utmp' type, describing entries in the utmp file. GNU version.
- Copyright (C) 1993, 1996, 1997, 1998, 1999, 2002
- Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 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
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
- #ifndef _UTMP_H
- # error "Never include <bits/utmp.h> directly; use <utmp.h> instead."
- #endif
- #include <paths.h>
- #include <sys/time.h>
- #include <sys/types.h>
- #include <bits/wordsize.h>
- #define UT_LINESIZE 32
- #define UT_NAMESIZE 32
- #define UT_HOSTSIZE 256
- /* The structure describing an entry in the database of
- previous logins. */
- struct lastlog
- {
- #if __WORDSIZE == 64 && defined __WORDSIZE_COMPAT32
- int32_t ll_time;
- #else
- __time_t ll_time;
- #endif
- char ll_line[UT_LINESIZE];
- char ll_host[UT_HOSTSIZE];
- };
- /* The structure describing the status of a terminated process. This
- type is used in `struct utmp' below. */
- struct exit_status
- {
- short int e_termination; /* Process termination status. */
- short int e_exit; /* Process exit status. */
- };
- /* The structure describing an entry in the user accounting database. */
- struct utmp
- {
- short int ut_type; /* Type of login. */
- pid_t ut_pid; /* Process ID of login process. */
- char ut_line[UT_LINESIZE]; /* Devicename. */
- char ut_id[4]; /* Inittab ID. */
- char ut_user[UT_NAMESIZE]; /* Username. */
- char ut_host[UT_HOSTSIZE]; /* Hostname for remote login. */
- struct exit_status ut_exit; /* Exit status of a process marked
- as DEAD_PROCESS. */
- /* The ut_session and ut_tv fields must be the same size when compiled
- 32- and 64-bit. This allows data files and shared memory to be
- shared between 32- and 64-bit applications. */
- #if __WORDSIZE == 64 && defined __WORDSIZE_COMPAT32
- int32_t ut_session; /* Session ID, used for windowing. */
- struct
- {
- int32_t tv_sec; /* Seconds. */
- int32_t tv_usec; /* Microseconds. */
- } ut_tv; /* Time entry was made. */
- #else
- long int ut_session; /* Session ID, used for windowing. */
- struct timeval ut_tv; /* Time entry was made. */
- #endif
- int32_t ut_addr_v6[4]; /* Internet address of remote host. */
- char __unused[20]; /* Reserved for future use. */
- };
- /* Backwards compatibility hacks. */
- #define ut_name ut_user
- #ifndef _NO_UT_TIME
- /* We have a problem here: `ut_time' is also used otherwise. Define
- _NO_UT_TIME if the compiler complains. */
- # define ut_time ut_tv.tv_sec
- #endif
- #define ut_xtime ut_tv.tv_sec
- #define ut_addr ut_addr_v6[0]
- /* Values for the `ut_type' field of a `struct utmp'. */
- #define EMPTY 0 /* No valid user accounting information. */
- #define RUN_LVL 1 /* The system's runlevel. */
- #define BOOT_TIME 2 /* Time of system boot. */
- #define NEW_TIME 3 /* Time after system clock changed. */
- #define OLD_TIME 4 /* Time when system clock changed. */
- #define INIT_PROCESS 5 /* Process spawned by the init process. */
- #define LOGIN_PROCESS 6 /* Session leader of a logged in user. */
- #define USER_PROCESS 7 /* Normal process. */
- #define DEAD_PROCESS 8 /* Terminated process. */
- #define ACCOUNTING 9
- /* Old Linux name for the EMPTY type. */
- #define UT_UNKNOWN EMPTY
- /* Tell the user that we have a modern system with UT_HOST, UT_PID,
- UT_TYPE, UT_ID and UT_TV fields. */
- #define _HAVE_UT_TYPE 1
- #define _HAVE_UT_PID 1
- #define _HAVE_UT_ID 1
- #define _HAVE_UT_TV 1
- #define _HAVE_UT_HOST 1
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