diff options
Diffstat (limited to 'man5/utmp.5')
| -rw-r--r-- | man5/utmp.5 | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/man5/utmp.5 b/man5/utmp.5 index f79e33e6a..4a0296409 100644 --- a/man5/utmp.5 +++ b/man5/utmp.5 @@ -8,7 +8,7 @@ .\" Modified 1996-07-20 by Michael Haardt .\" Modified 1997-07-02 by Nicolás Lichtmaier <nick@debian.org> .\" Modified 2004-10-31 by aeb, following Gwenole Beauchesne -.TH utmp 5 2023-02-05 "Linux man-pages 6.03" +.TH utmp 5 2023-05-03 "Linux man-pages 6.05.01" .SH NAME utmp, wtmp \- login records .SH SYNOPSIS @@ -44,7 +44,7 @@ around; details depend on the version of libc): .in +4n .EX /* Values for ut_type field, below */ - +\& #define EMPTY 0 /* Record does not contain valid info (formerly known as UT_UNKNOWN on Linux) */ #define RUN_LVL 1 /* Change in system run\-level (see @@ -59,16 +59,16 @@ around; details depend on the version of libc): #define USER_PROCESS 7 /* Normal process */ #define DEAD_PROCESS 8 /* Terminated process */ #define ACCOUNTING 9 /* Not implemented */ - +\& #define UT_LINESIZE 32 #define UT_NAMESIZE 32 #define UT_HOSTSIZE 256 - +\& struct exit_status { /* Type for ut_exit, below */ short e_termination; /* Process termination status */ short e_exit; /* Process exit status */ }; - +\& struct utmp { short ut_type; /* Type of record */ pid_t ut_pid; /* PID of login process */ @@ -96,13 +96,13 @@ struct utmp { long ut_session; /* Session ID */ struct timeval ut_tv; /* Time entry was made */ #endif - +\& int32_t ut_addr_v6[4]; /* Internet address of remote host; IPv4 address uses just ut_addr_v6[0] */ char __unused[20]; /* Reserved for future use */ }; - +\& /* Backward compatibility hacks */ #define ut_name ut_user #ifndef _NO_UT_TIME @@ -176,7 +176,8 @@ with null bytes. and other terminal emulators directly create a \fBUSER_PROCESS\fP record and generate the \fIut_id\fP by using the string that suffix part of the terminal name (the characters -following \fI/dev/[pt]ty\fP). +following +.IR /dev/ [pt] ty ). If they find a \fBDEAD_PROCESS\fP for this ID, they recycle it, otherwise they create a new entry. If they can, they @@ -217,7 +218,7 @@ removed, record-keeping is turned off. .I /var/run/utmp .br .I /var/log/wtmp -.SH STANDARDS +.SH VERSIONS POSIX.1 does not specify a .I utmp structure, but rather one named @@ -242,7 +243,9 @@ Linux defines the structure to be the same as the .I utmp structure. -.SS Comparison with historical systems +.SH STANDARDS +Linux. +.SH HISTORY Linux utmp entries conform neither to v7/BSD nor to System V; they are a mix of the two. .PP @@ -313,7 +316,7 @@ the following method of setting this field is recommended: .EX struct utmp ut; struct timeval tv; - +\& gettimeofday(&tv, NULL); ut.ut_tv.tv_sec = tv.tv_sec; ut.ut_tv.tv_usec = tv.tv_usec; |