Name
updwtmp, logwtmp — append an entry to the wtmp
file
Synopsis
#include <utmp.h>
void
updwtmp( |
const char * |
wtmp_file, |
|
const struct utmp
* |
ut) ; |
void
logwtmp( |
const char * |
line, |
|
const char * |
name, |
|
const char * |
host) ; |
DESCRIPTION
updwtmp
() appends the utmp
structure ut
to the
wtmp file.
logwtmp
() constructs a utmp
structure using line
,
name
, host
, current time and current
process ID. Then it calls updwtmp
() to append the structure to the
utmp file.
FILES
/var/log/wtmp
-
database of past user logins
CONFORMING TO
Not in POSIX.1-2001. Present on Solaris, NetBSD, and
perhaps other systems.
AVAILABILITY
Both functions are available under glibc2, but not under
libc5. However, logwtmp
() used
to occur in the old libbsd. These days, the logwtmp
() function is included in libutil.
(Hence you'll need to add −lutil
to your compiler command line to
get it.)
SEE ALSO
wtmp(5)
Copyright 1997 Nicolás Lichtmaier <nick@debian.org>
Created Wed Jul 2 23:27:34 ART 1997
This is free documentation; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
The GNU General Public License's references to "object code"
and "executables" are to be interpreted as the output of any
document formatting or typesetting system, including
intermediate and printed output.
This manual is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
Added info on availability, aeb, 971207
Added -lutil remark, 030718
|