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Diffstat (limited to 'man3/updwtmp.3')
| -rw-r--r-- | man3/updwtmp.3 | 56 |
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diff --git a/man3/updwtmp.3 b/man3/updwtmp.3 new file mode 100644 index 000000000..e7bb3aa3b --- /dev/null +++ b/man3/updwtmp.3 @@ -0,0 +1,56 @@ +.\" 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 +.\" +.TH UPDWTMP 3 2003-07-18 "GNU" "Linux Programmer's Manual" +.SH NAME +updwtmp, logwtmp \- append an entry to the wtmp file +.SH SYNOPSIS +.nf +.B #include <utmp.h> +.sp +.BI "void updwtmp(const char *" wtmp_file ", const struct utmp *" ut ); +.br +.BI "void logwtmp(const char *" line ", const char *" name ", const char *" host ); +.fi +.SH DESCRIPTION +\fBupdwtmp\fR() appends the utmp structure +.I ut +to the wtmp file. +.PP +\fBlogwtmp\fR() constructs an utmp structure using +.IR line ", " name ", " host , +current time and current process id. +Then it calls \fBupdwtmp\fR() to append the structure to the utmp file. +.SH AVAILABILITY +Both functions are available under glibc2, but not under libc5. +However, +.B logwtmp +used to occur in the old libbsd. These days, the +.B logwtmp +function is included in libutil. (Hence you'll need to add +.B \-lutil +to your compiler commandline to get it.) +.SH FILES +.TP +.I /var/log/wtmp +database of past user logins +.SH "SEE ALSO" +.BR wtmp (5) |