who fails

Thu Jul 31 09:51:00 GMT 1997

Billinghurst, David wrote:
>> The b18 version of who.exe gives me:
>> bash$ who
> who: /var/run/utmp: No such file or directory
> bash$ who am i
> who: /var/run/utmp: No such file or directory
>> Any ideas?
>{ snip } 
utmp holds accounting information on unix systems. There's no such file
(that I'm aware of) for Windows. I could ramble on about it's internal
structure, but the Solaris man page describes it better than I.
See attached.
:-)

--
David Means
mailto:dmeans@bellsouth.net
utmp(4) File Formats utmp(4)
NAME
 utmp, wtmp - utmp and wtmp entry formats
SYNOPSIS
 #include <utmp.h>
DESCRIPTION
 utmp and wtmp hold user and accounting information for com-
 mands such as who, write, and login. These files 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
 struct utmp {
 char ut_user[8]; /* user login name */
 char ut_id[4]; /* /sbin/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 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"
FILES
 /var/adm/utmp
SunOS 5.5.1 Last change: 3 Jul 1990 1
utmp(4) File Formats utmp(4)
 /var/adm/wtmp
SEE ALSO
 login(1), who(1), write(1)
SunOS 5.5.1 Last change: 3 Jul 1990 2