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+.\"-
+.\" Copyright (c) 2001-2003 Networks Associates Technology, Inc.
+.\" Copyright (c) 2004-2007 Dag-Erling Smørgrav
+.\" All rights reserved.
+.\"
+.\" This software was developed for the FreeBSD Project by ThinkSec AS and
+.\" Network Associates Laboratories, 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
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $P4$
+.\"
+.Dd December 21, 2007
+.Dt PAM_GET_DATA 3
+.Os
+.Sh NAME
+.Nm pam_get_data
+.Nd get module information
+.Sh LIBRARY
+.Lb libpam
+.Sh SYNOPSIS
+.In sys/types.h
+.In security/pam_appl.h
+.Ft "int"
+.Fn pam_get_data "const pam_handle_t *pamh" "const char *module_data_name" "const void **data"
+.Sh DESCRIPTION
+The
+.Nm
+function looks up the opaque object associated with
+the string specified by the
+.Fa module_data_name
+argument, in the PAM
+context specified by the
+.Fa pamh
+argument.
+A pointer to the object is stored in the location pointed to by the
+.Fa data
+argument.
+.Pp
+This function and its counterpart
+.Xr pam_set_data 3
+are useful for managing
+data that are meaningful only to a particular service module.
+.Sh RETURN VALUES
+The
+.Nm
+function returns one of the following values:
+.Bl -tag -width 18n
+.It Bq Er PAM_NO_MODULE_DATA
+Module data not found.
+.It Bq Er PAM_SYSTEM_ERR
+System error.
+.El
+.Sh SEE ALSO
+.Xr pam 3 ,
+.Xr pam_set_data 3 ,
+.Xr pam_strerror 3
+.Sh STANDARDS
+.Rs
+.%T "X/Open Single Sign-On Service (XSSO) - Pluggable Authentication Modules"
+.%D "June 1997"
+.Re
+.Sh AUTHORS
+The
+.Nm
+function and this manual page were developed for the
+.Fx
+Project by ThinkSec AS and Network Associates Laboratories, 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.