<refentry xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="pam_prompt">

  <refmeta>
    <refentrytitle>pam_prompt</refentrytitle>
    <manvolnum>3</manvolnum>
    <refmiscinfo class="source">Linux-PAM</refmiscinfo>
    <refmiscinfo class="manual">Linux-PAM Manual</refmiscinfo>
  </refmeta>

  <refnamediv xml:id="pam_prompt-name">
    <refname>pam_prompt</refname>
    <refname>pam_vprompt</refname>
    <refpurpose>interface to conversation function</refpurpose>
  </refnamediv>

<!-- body begins here -->

  <refsynopsisdiv xml:id="pam_prompt-synopsis">
    <funcsynopsis>
      <funcsynopsisinfo>#include &lt;security/pam_ext.h&gt;</funcsynopsisinfo>
      <funcprototype>
        <funcdef>int <function>pam_prompt</function></funcdef>
        <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef>
        <paramdef>int <parameter>style</parameter></paramdef>
        <paramdef>char **<parameter>response</parameter></paramdef>
        <paramdef>const char *<parameter>fmt</parameter></paramdef>
        <paramdef><parameter>...</parameter></paramdef>
      </funcprototype>
      <funcprototype>
        <funcdef>int <function>pam_vprompt</function></funcdef>
        <paramdef>pam_handle_t *<parameter>pamh</parameter></paramdef>
        <paramdef>int <parameter>style</parameter></paramdef>
        <paramdef>char **<parameter>response</parameter></paramdef>
        <paramdef>const char *<parameter>fmt</parameter></paramdef>
        <paramdef>va_list <parameter>args</parameter></paramdef>
      </funcprototype>
    </funcsynopsis>
  </refsynopsisdiv>

  <refsect1 xml:id="pam_prompt-description">
    <title>DESCRIPTION</title>
    <para>
      The <function>pam_prompt</function> function constructs a message
      from the specified format string and arguments and passes it to the
      conversation function as set by the service. Upon successful return,
      <emphasis>response</emphasis> is set to point to a string
      returned from the conversation function. This string is allocated
      on heap and should be freed.
    </para>
  </refsect1>

  <refsect1 xml:id="pam_prompt-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>
              Conversation succeeded, response is set.
          </para>
        </listitem>
      </varlistentry>
      <varlistentry>
        <term>PAM_SYSTEM_ERR</term>
        <listitem>
           <para>
              System error.
          </para>
        </listitem>
      </varlistentry>
    </variablelist>
  </refsect1>


  <refsect1 xml:id="pam_prompt-see_also">
    <title>SEE ALSO</title>
    <para>
      <citerefentry>
        <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum>
      </citerefentry>,
      <citerefentry>
        <refentrytitle>pam_conv</refentrytitle><manvolnum>3</manvolnum>
      </citerefentry>
    </para>
  </refsect1>

  <refsect1 xml:id="pam_prompt-standards">
    <title>STANDARDS</title>
    <para>
      The <function>pam_prompt</function> and <function>pam_vprompt</function>
      functions are Linux-PAM extensions.
    </para>
  </refsect1>

</refentry>