Revision 300a025b79f1eceb0aa17c5a7779bbeb23c61599 authored by Bjoern A. Zeeb on 24 January 2010, 10:08:54 UTC, committed by Bjoern A. Zeeb on 24 January 2010, 10:08:54 UTC
Make callers to in6_selectsrc() and in6_pcbladdr() pass in memory to save the selected source address rather than returning an unreferenced copy to a pointer that might long be gone by the time we use the pointer for anything meaningful. Asked for by: rwatson Reviewed by: rwatson Approved by: re (kensmith)
1 parent 2457318
logwtmp.3
.\"
.\" Copyright (c) 1996 Joerg Wunsch
.\"
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.\" $FreeBSD$
.\" "
.Dd December 29, 1996
.Os
.Dt LOGWTMP 3
.Sh NAME
.Nm logwtmp
.Nd append a new record to the wtmp file
.Sh LIBRARY
.Lb libutil
.Sh SYNOPSIS
.In sys/types.h
.In libutil.h
.Ft void
.Fn logwtmp "const char *line" "const char *name" "const char *host"
.Sh DESCRIPTION
The function
.Fn logwtmp
tries to append a new record to the
.Xr wtmp 5
file, using the provided arguments
.Ar line ,
.Ar name ,
and
.Ar host ,
and the current time.
.Pp
If the length of the hostname string
.Ar host
is longer than what would fit into the hostname field of the
.Xr wtmp 5
file, it will first be attempted to convert it into a numerical IP
address using
.Xr gethostbyname 3 .
Failing this, the hostname will be recorded as
.Qq invalid hostname .
.Pp
The calling process must have permission to write to the
.Xr wtmp 5
file.
.Sh RETURN VALUES
None.
.Sh SEE ALSO
.Xr gethostbyname 3 ,
.Xr login 3 ,
.Xr wtmp 5
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