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+'\" t
+.\"     Title: pam_get_data
+.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 06/08/2020
+.\"    Manual: Linux-PAM Manual
+.\"    Source: Linux-PAM Manual
+.\"  Language: English
+.\"
+.TH "PAM_GET_DATA" "3" "06/08/2020" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_get_data \- get module internal data
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_modules\&.h>
+.fi
+.ft
+.HP \w'int\ pam_get_data('u
+.BI "int pam_get_data(const\ pam_handle_t\ *" "pamh" ", const\ char\ *" "module_data_name" ", const\ void\ **" "data" ");"
+.SH "DESCRIPTION"
+.PP
+This function together with the
+\fBpam_set_data\fR(3)
+function is useful to manage module\-specific data meaningful only to the calling PAM module\&.
+.PP
+The
+\fBpam_get_data\fR
+function looks up the object associated with the (hopefully) unique string
+\fImodule_data_name\fR
+in the PAM context specified by the
+\fIpamh\fR
+argument\&. A successful call to
+\fBpam_get_data\fR
+will result in
+\fIdata\fR
+pointing to the object\&. Note, this data is
+\fInot\fR
+a copy and should be treated as
+\fIconstant\fR
+by the module\&.
+.SH "RETURN VALUES"
+.PP
+PAM_SUCCESS
+.RS 4
+Data was successful retrieved\&.
+.RE
+.PP
+PAM_SYSTEM_ERR
+.RS 4
+A NULL pointer was submitted as PAM handle or the function was called by an application\&.
+.RE
+.PP
+PAM_NO_MODULE_DATA
+.RS 4
+Module data not found or there is an entry, but it has the value NULL\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_end\fR(3),
+\fBpam_set_data\fR(3),
+\fBpam_strerror\fR(3)