utmp(4)                                                      utmp(4)


       NAME
             utmp, wtmp - user and accounting information

       SYNOPSIS
             #include <utmp.h>

       DESCRIPTION
             These files, which hold user and accounting information for
             such commands as who, write, and login, have the following
             structure, defined in utmp.h:

             #define UTMP_FILE   "/var/adm/utmp"
             #define WTMP_FILE   "/var/adm/wtmp"
             #define ut_name     ut_user

             The utmp structure includes the following members:
                char    ut_user[8];        /* user login name */
                char    ut_id[4];          /* /etc/inittab id (created by */
                                           /* process that puts entry in utmp) */
                char    ut_line[12];       /* device name (console, lnxx) */
                short   ut_pid;            /* process id */
                short   ut_type;           /* type of entry */
                struct  exit_status {
                   short  e_termination;   /* process termination status */
                   short  e_exit;          /* process exit status */
                } ut_exit;                 /* exit status of a process
                                           * marked as DEAD_PROCESS */
                time_t  ut_time;           /* time entry was made */
             /*  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  /* max 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 should be no more than 11 chars +  */
             /*  a null character in length.  */
             #define RUNLVL_MSG     "run-level %c"
             #define BOOT_MSG       "system boot"


                           Copyright 1994 Novell, Inc.               Page 1

      utmp(4)                                                      utmp(4)


            #define OTIME_MSG      "old time"
            #define NTIME_MSG      "new time"

      FILES
            /var/adm/utmp
            /var/adm/wtmp

      REFERENCES
            getut(3G), login(1), utmpx(4), who(1), write(1)







































                          Copyright 1994 Novell, Inc.               Page 2