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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">
<refentry id="pam_error">
<refmeta>
<refentrytitle>pam_error</refentrytitle>
<manvolnum>3</manvolnum>
<refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo>
</refmeta>
<refnamediv id="pam_error-name">
<refname>pam_error</refname>
<refname>pam_verror</refname>
<refpurpose>display error messages to the user</refpurpose>
</refnamediv>
<!-- body begins here -->
<refsynopsisdiv id="pam_error-synopsis">
<funcsynopsis>
<funcsynopsisinfo>#include <security/pam_ext.h></funcsynopsisinfo>
<funcprototype>
<funcdef>int <function>pam_error</function></funcdef>
<paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef>
<paramdef>const char *<parameter>fmt</parameter></paramdef>
<paramdef><parameter>...</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>int <function>pam_verror</function></funcdef>
<paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef>
<paramdef>const char *<parameter>fmt</parameter></paramdef>
<paramdef>va_list <parameter>args</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id='pam_error-description'>
<title>DESCRIPTION</title>
<para>
The <function>pam_error</function> function prints error messages
through the conversation function to the user.
</para>
<para>
The <function>pam_verror</function> function performs the same
task as <function>pam_error()</function> with the difference
that it takes a set of arguments which have been obtained using
the <citerefentry>
<refentrytitle>stdarg</refentrytitle><manvolnum>3</manvolnum>
</citerefentry> variable argument list macros.
</para>
</refsect1>
<refsect1 id="pam_error-return_values">
<title>RETURN VALUES</title>
<variablelist>
<varlistentry>
<term>PAM_BUF_ERR</term>
<listitem>
<para>
Memory buffer error.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>PAM_CONV_ERR</term>
<listitem>
<para>
Conversation failure.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>PAM_SUCCESS</term>
<listitem>
<para>
Error message was displayed.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>PAM_SYSTEM_ERR</term>
<listitem>
<para>
System error.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id='pam_error-see_also'>
<title>SEE ALSO</title>
<para>
<citerefentry>
<refentrytitle>pam_info</refentrytitle><manvolnum>3</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>pam_vinfo</refentrytitle><manvolnum>3</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>pam_prompt</refentrytitle><manvolnum>3</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>pam_vprompt</refentrytitle><manvolnum>3</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum>
</citerefentry>
</para>
</refsect1>
<refsect1 id='pam_error-standards'>
<title>STANDARDS</title>
<para>
The <function>pam_error</function> and <function>pam_verror</function>
functions are Linux-PAM extensions.
</para>
</refsect1>
</refentry>
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