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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"
[
<!--
<!ENTITY accessconf SYSTEM "pam_item_types.inc.xml">
-->
]>
<refentry id='pam_get_item'>
<refmeta>
<refentrytitle>pam_get_item</refentrytitle>
<manvolnum>3</manvolnum>
<refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo>
</refmeta>
<refnamediv id='pam_get_item-name'>
<refname>pam_get_item</refname>
<refpurpose>
getting PAM informations
</refpurpose>
</refnamediv>
<!-- body begins here -->
<refsynopsisdiv>
<funcsynopsis id="pam_get_item-synopsis">
<funcsynopsisinfo>#include <security/pam_modules.h></funcsynopsisinfo>
<funcprototype>
<funcdef>int <function>pam_get_item</function></funcdef>
<paramdef>const pam_handle_t *<parameter>pamh</parameter></paramdef>
<paramdef>int <parameter>item_type</parameter></paramdef>
<paramdef>const void **<parameter>item</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="pam_get_item-description">
<title>DESCRIPTION</title>
<para>
The <function>pam_get_item</function> function allows applications
and PAM service modules to access and retrieve PAM informations
of <emphasis>item_type</emphasis>. Upon successful return,
<emphasis>item</emphasis> contains a pointer to the value of the
corresponding item. Note, this is a pointer to the
<emphasis>actual</emphasis> data and should
<emphasis remap="B">not</emphasis> be <emphasis>free()</emphasis>'ed or
over-written! The following values are supported for
<emphasis>item_type</emphasis>:
</para>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
href="pam_item_types.inc.xml"/>
<para>
If a service module wishes to obtain the name of the user,
it should not use this function, but instead perform a call to
<citerefentry>
<refentrytitle>pam_get_user</refentrytitle><manvolnum>3</manvolnum>
</citerefentry>.
</para>
<para>
Only a service module is privileged to read the
authentication tokens, PAM_AUTHTOK and PAM_OLDAUTHTOK.
</para>
</refsect1>
<refsect1 id="pam_get_item-return_values">
<title>RETURN VALUES</title>
<variablelist>
<varlistentry>
<term>PAM_BAD_ITEM</term>
<listitem>
<para>
The application attempted to set an undefined or inaccessible
item.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>PAM_BUF_ERR</term>
<listitem>
<para>
Memory buffer error.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>PAM_PERM_DENIED</term>
<listitem>
<para>
The value of <emphasis>item</emphasis> was NULL.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>PAM_SUCCESS</term>
<listitem>
<para>
Data was successful updated.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>PAM_SYSTEM_ERR</term>
<listitem>
<para>
The <emphasis>pam_handle_t</emphasis> passed as first
argument was invalid.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id="pam_get_item-see_also">
<title>SEE ALSO</title>
<para>
<citerefentry>
<refentrytitle>pam_set_item</refentrytitle><manvolnum>3</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>pam_strerror</refentrytitle><manvolnum>3</manvolnum>
</citerefentry>
</para>
</refsect1>
</refentry>
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