sysdeps/gnu/bits/utmpx.h

   1 /* Structures and definitions for the user accounting database.  GNU version.
   2    Copyright (C) 1997-2014 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _UTMPX_H
  20 # error "Never include <bits/utmpx.h> directly; use <utmpx.h> instead."
  21 #endif
  22
  23 #include <bits/types.h>
  24 #include <sys/time.h>
  25 #include <bits/wordsize.h>
  26
  27
  28 #ifdef __USE_GNU
  29 # include <paths.h>
  30 # define _PATH_UTMPX    _PATH_UTMP
  31 # define _PATH_WTMPX    _PATH_WTMP
  32 #endif
  33
  34
  35 #define __UT_LINESIZE   32
  36 #define __UT_NAMESIZE   32
  37 #define __UT_HOSTSIZE   256
  38
  39
  40 /* The structure describing the status of a terminated process.  This
  41    type is used in `struct utmpx' below.  */
  42 struct __exit_status
  43   {
  44 #ifdef __USE_GNU
  45     short int e_termination;    /* Process termination status.  */
  46     short int e_exit;           /* Process exit status.  */
  47 #else
  48     short int __e_termination;  /* Process termination status.  */
  49     short int __e_exit;         /* Process exit status.  */
  50 #endif
  51   };
  52
  53
  54 /* The structure describing an entry in the user accounting database.  */
  55 struct utmpx
  56 {
  57   short int ut_type;            /* Type of login.  */
  58   __pid_t ut_pid;               /* Process ID of login process.  */
  59   char ut_line[__UT_LINESIZE];  /* Devicename.  */
  60   char ut_id[4];                /* Inittab ID. */
  61   char ut_user[__UT_NAMESIZE];  /* Username.  */
  62   char ut_host[__UT_HOSTSIZE];  /* Hostname for remote login.  */
  63   struct __exit_status ut_exit; /* Exit status of a process marked
  64                                    as DEAD_PROCESS.  */
  65
  66 /* The fields ut_session and ut_tv must be the same size when compiled
  67    32- and 64-bit.  This allows files and shared memory to be shared
  68    between 32- and 64-bit applications.  */
  69 #ifdef __WORDSIZE_TIME64_COMPAT32
  70   __int32_t ut_session;         /* Session ID, used for windowing.  */
  71   struct
  72   {
  73     __int32_t tv_sec;           /* Seconds.  */
  74     __int32_t tv_usec;          /* Microseconds.  */
  75   } ut_tv;                      /* Time entry was made.  */
  76 #else
  77   long int ut_session;          /* Session ID, used for windowing.  */
  78   struct timeval ut_tv;         /* Time entry was made.  */
  79 #endif
  80   __int32_t ut_addr_v6[4];      /* Internet address of remote host.  */
  81   char __glibc_reserved[20];            /* Reserved for future use.  */
  82 };
  83
  84
  85 /* Values for the `ut_type' field of a `struct utmpx'.  */
  86 #define EMPTY           0       /* No valid user accounting information.  */
  87
  88 #ifdef __USE_GNU
  89 # define RUN_LVL        1       /* The system's runlevel.  */
  90 #endif
  91 #define BOOT_TIME       2       /* Time of system boot.  */
  92 #define NEW_TIME        3       /* Time after system clock changed.  */
  93 #define OLD_TIME        4       /* Time when system clock changed.  */
  94
  95 #define INIT_PROCESS    5       /* Process spawned by the init process.  */
  96 #define LOGIN_PROCESS   6       /* Session leader of a logged in user.  */
  97 #define USER_PROCESS    7       /* Normal process.  */
  98 #define DEAD_PROCESS    8       /* Terminated process.  */
  99
 100 #ifdef __USE_GNU
 101 # define ACCOUNTING     9       /* System accounting.  */
 102 #endif