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+.\"     Title: pam_get_data
+.\"    Author: 
+.\" Generator: DocBook XSL Stylesheets v1.70.1 <http://docbook.sf.net/>
+.\"      Date: 06/27/2006
+.\"    Manual: Linux\-PAM Manual
+.\"    Source: Linux\-PAM Manual
+.\"
+.TH "PAM_GET_DATA" "3" "06/27/2006" "Linux\-PAM Manual" "Linux\-PAM Manual"
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.SH "NAME"
+pam_get_data \- get module internal data
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_modules.h>
+.fi
+.ft
+.HP 17
+.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"
+.TP 3n
+PAM_SUCCESS
+Data was successful retrieved.
+.TP 3n
+PAM_SYSTEM_ERR
+A NULL pointer was submitted as PAM handle or the function was called by an application.
+.TP 3n
+PAM_NO_MODULE_DATA
+Module data not found or there is an entry, but it has the value NULL.
+.SH "SEE ALSO"
+.PP
+
+\fBpam_end\fR(3),
+\fBpam_set_data\fR(3),
+\fBpam_strerror\fR(3)