utmpx(4) — FILE FORMATS
NAME
utmpx, wtmpx − utmpx and wtmpx entry formats
SYNOPSIS
#include <utmpx.h>
DESCRIPTION
utmpx(4) is an extended version of utmp(4).
These files, which hold user and accounting information for such commands as who, write, and login, have the following structure as defined by utmpx.h:
| #define UTMPX_FILE "/var/adm/utmpx" | ||
| #define WTMPX_FILE "/var/adm/wtmpx" | ||
| #define ut_name ut_user | ||
| #define ut_xtime ut_tv.tv_sec |
struct utmpx {
char ut_user[32]; /∗ user login name ∗/
char ut_id[4]; /∗ inittab id ∗/
char ut_line[32]; /∗ device name (console, lnxx) ∗/
pid_t ut_pid; /∗ process id ∗/
short ut_type; /∗ type of entry ∗/
struct exit_status ut_exit; /∗ process termination/exit status ∗/
struct timeval ut_tv; /∗ time entry was made ∗/
long ut_session; /∗ session ID, used for windowing ∗/
long pad[5]; /∗ reserved for future use ∗/
short ut_syslen; /∗ significant length of ut_host ∗/
/∗ including terminating null ∗/
char ut_host[257]; /∗ remote host name ∗/
} ;
/∗ Definitions for ut_type ∗/
#define EMPTY 0
#define RUN_LVL 1
#define BOOT_TIME 2
#define OLD_TIME 3
#define NEW_TIME 4
#define INIT_PROCESS 5 /∗ Process spawned by "init" ∗/
#define LOGIN_PROCESS 6 /∗ A "getty" process waiting for login ∗/
#define USER_PROCESS 7 /∗ A user process ∗/
#define DEAD_PROCESS 8
#define ACCOUNTING 9
#define UTMAXTYPE ACCOUNTING /∗ Largest legal value of ut_type ∗/
/∗ Below are special strings or formats used in the "ut_line" ∗/
/∗ field when accounting for something other than a process. ∗/
/∗ No string for the ut_line field can be more than 11 chars + ∗/
/∗ a null character in length. ∗/
#define RUNLVL_MSG "run-level %c"
#define BOOT_MSG "system boot"
#define OTIME_MSG "old time"
#define NTIME_MSG "new time"
#define MOD_WIN 10
FILES
/var/adm/utmpx
/var/adm/wtmpx