.\" Copyright (c) 2001,2003 Networks Associates Technology, Inc.
.\" All rights reserved.
.\"
.\" Portions of this software were developed for the FreeBSD Project by
.\" ThinkSec AS and NAI Labs, the Security Research Division of Network
.\" Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
.\" ("CBOSS"), as part of the DARPA CHATS research program.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. The name of the author may not be used to endorse or promote
.\"    products derived from this software without specific prior written
.\"    permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" $FreeBSD: head/lib/libpam/modules/pam_echo/pam_echo.8 203958 2010-02-16 12:29:02Z ru $
.\"
.Dd February 6, 2003
.Dt PAM_ECHO 8
.Os
.Sh NAME
.Nm pam_echo
.Nd Echo PAM module
.Sh SYNOPSIS
.Op Ar service-name
.Ar module-type
.Ar control-flag
.Pa pam_echo
.Op Ar arguments
.Sh DESCRIPTION
The echo service module for PAM displays its arguments to the user,
separated by spaces, using the current conversation function.
.Pp
If the
.Cm %
character occurs anywhere in the arguments to
.Nm ,
it is assumed to introduce one of the following escape sequences:
.Bl -tag -width 4n
.It Cm %H
The name of the host on which the client runs
.Pq Dv PAM_RHOST .
.\".It Cm %h
.\"The name of the host on which the server runs.
.It Cm %s
The current service name
.Pq Dv PAM_SERVICE .
.It Cm %t
The name of the controlling tty
.Pq Dv PAM_TTY .
.It Cm \&%U
The applicant's user name
.Pq Dv PAM_RUSER .
.It Cm %u
The target account's user name
.Pq Dv PAM_USER .
.El
.Pp
Any other two-character sequence beginning with
.Cm %
expands to the character following the
.Cm %
character.
.Sh SEE ALSO
.Xr pam.conf 5 ,
.Xr pam 8
.Sh AUTHORS
The
.Nm
module and this manual page were developed for the
.Fx
Project by
ThinkSec AS and NAI Labs, the Security Research Division of Network
Associates, Inc.\& under DARPA/SPAWAR contract N66001-01-C-8035
.Pq Dq CBOSS ,
as part of the DARPA CHATS research program.