diff options
Diffstat (limited to 'bits/utmp.h')
| -rw-r--r-- | bits/utmp.h | 103 |
1 files changed, 90 insertions, 13 deletions
diff --git a/bits/utmp.h b/bits/utmp.h index 4c36ca19ce..3c02dd4f3f 100644 --- a/bits/utmp.h +++ b/bits/utmp.h @@ -1,4 +1,4 @@ -/* The `struct utmp' type, describing entries in the utmp file. Generic/BSDish +/* The `struct utmp' type, describing entries in the utmp file. Copyright (C) 1993-2019 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -21,29 +21,106 @@ #endif #include <paths.h> -#include <time.h> +#include <sys/time.h> +#include <sys/types.h> +#include <bits/wordsize.h> -#define UT_NAMESIZE 8 -#define UT_LINESIZE 8 -#define UT_HOSTSIZE 16 +#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 { - time_t ll_time; +#if __WORDSIZE_TIME64_COMPAT32 + int32_t ll_time; +#else + __time_t ll_time; +#endif char ll_line[UT_LINESIZE]; char ll_host[UT_HOSTSIZE]; }; -struct utmp + +/* The structure describing the status of a terminated process. This + type is used in `struct utmp' below. */ +struct exit_status { - char ut_line[UT_LINESIZE]; - char ut_user[UT_NAMESIZE]; -#define ut_name ut_user - char ut_host[UT_HOSTSIZE]; - long int ut_time; + short int e_termination; /* Process termination status. */ + short int e_exit; /* Process exit status. */ }; -#define _HAVE_UT_HOST 1 /* We have the ut_host field. */ +/* 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] + __attribute_nonstring__; /* Devicename. */ + char ut_id[4]; /* Inittab ID. */ + char ut_user[UT_NAMESIZE] + __attribute_nonstring__; /* Username. */ + char ut_host[UT_HOSTSIZE] + __attribute_nonstring__; /* 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_TIME64_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 __glibc_reserved[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 |