.\" Generated from pam_get_data.c by gendoc.pl
.\" $OpenPAM: pam_get_data.c 938 2017-04-30 21:34:42Z des $
.Dd February 24, 2019
.Dt PAM_GET_DATA 3
.Os
.Sh NAME
.Nm pam_get_data
.Nd get module information
.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
.Fn pam_get_data
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.
If
.Fn pam_get_data
fails, the
.Fa data
argument is untouched.
.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
.Fn pam_get_data
function returns one of the following values:
.Bl -tag -width 18n
.It Bq Er PAM_SUCCESS
Success.
.It Bq Er PAM_NO_MODULE_DATA
Module data not found.
.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
.Fn pam_get_data
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.
.Pp
The OpenPAM library is maintained by
.An Dag-Erling Sm\(/orgrav Aq Mt des@des.no .