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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>4.3. The conversation function</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><link rel="home" href="Linux-PAM_ADG.html" title="The Linux-PAM Application Developers' Guide"><link rel="up" href="adg-security.html" title="Chapter 4.  Security issues of Linux-PAM"><link rel="prev" href="adg-security-service-name.html" title="4.2. Choice of a service name"><link rel="next" href="adg-security-user-identity.html" title="4.4. The identity of the user"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">4.3. The conversation function</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="adg-security-service-name.html">Prev</a> </td><th width="60%" align="center">Chapter 4. 
      Security issues of <span class="emphasis"><em>Linux-PAM</em></span>
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        Care should be taken to ensure that the <code class="function">conv()</code>
        function is robust. Such a function is provided in the library
        <span class="command"><strong>libpam_misc</strong></span> (see
        <a class="link" href="adg-libpam-functions.html" title="5.1. Functions supplied">below</a>).
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