UTMP(4-SysV)        RISC/os Reference Manual         UTMP(4-SysV)



NAME
     utmp, wtmp - utmp and wtmp entry formats

SYNOPSIS
     #include <sys/types.h>
     #include <utmp.h>

DESCRIPTION
     These files, which hold user and accounting information for
     such commands as who(1), write(1), and login(1), have the
     following structure as defined by <utmp.h>:

     #define   UTMP_FILE   "/etc/utmp"
     #define   WTMP_FILE   "/etc/wtmp"
     #define   ut_name     ut_user

     struct utmp {
            char       ut_user[8];        /* User login name */
            char       ut_id[4];          /* /etc/inittab id (usually line #) */
            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;                    /* The 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 /* Largest legal value of ut_type */

     /*  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 in length  */
     #define RUNLVL_MSG "run-level %c"
     #define BOOT_MSG   "system boot"
     #define OTIME_MSG  "old time"





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UTMP(4-SysV)        RISC/os Reference Manual         UTMP(4-SysV)



     #define NTIME_MSG  "new time"

FILES
     /etc/utmp
     /etc/wtmp

SEE ALSO
     getut(3C).
     login(1), who(1), write(1) in the User's Reference Manual.














































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