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1 /* Structures and definitions for the user accounting database. GNU version. 2 Copyright (C) 1997-2021 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 <https://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] 60 __attribute_nonstring__; /* Devicename. */ 61 char ut_id[4] 62 __attribute_nonstring__; /* Inittab ID. */ 63 char ut_user[__UT_NAMESIZE] 64 __attribute_nonstring__; /* Username. */ 65 char ut_host[__UT_HOSTSIZE] 66 __attribute_nonstring__; /* Hostname for remote login. */ 67 struct __exit_status ut_exit; /* Exit status of a process marked 68 as DEAD_PROCESS. */ 69 70 /* The fields ut_session and ut_tv must be the same size when compiled 71 32- and 64-bit. This allows files and shared memory to be shared 72 between 32- and 64-bit applications. */ 73 #if __WORDSIZE_TIME64_COMPAT32 74 __int32_t ut_session; /* Session ID, used for windowing. */ 75 struct 76 { 77 __int32_t tv_sec; /* Seconds. */ 78 __int32_t tv_usec; /* Microseconds. */ 79 } ut_tv; /* Time entry was made. */ 80 #else 81 long int ut_session; /* Session ID, used for windowing. */ 82 struct timeval ut_tv; /* Time entry was made. */ 83 #endif 84 __int32_t ut_addr_v6[4]; /* Internet address of remote host. */ 85 char __glibc_reserved[20]; /* Reserved for future use. */ 86 }; 87 88 89 /* Values for the `ut_type' field of a `struct utmpx'. */ 90 #define EMPTY 0 /* No valid user accounting information. */ 91 92 #ifdef __USE_GNU 93 # define RUN_LVL 1 /* The system's runlevel. */ 94 #endif 95 #define BOOT_TIME 2 /* Time of system boot. */ 96 #define NEW_TIME 3 /* Time after system clock changed. */ 97 #define OLD_TIME 4 /* Time when system clock changed. */ 98 99 #define INIT_PROCESS 5 /* Process spawned by the init process. */ 100 #define LOGIN_PROCESS 6 /* Session leader of a logged in user. */ 101 #define USER_PROCESS 7 /* Normal process. */ 102 #define DEAD_PROCESS 8 /* Terminated process. */ 103 104 #ifdef __USE_GNU 105 # define ACCOUNTING 9 /* System accounting. */ 106 #endif