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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Chapter 3.  The public interface to Linux-PAM</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="Linux-PAM_ADG.html" title="The Linux-PAM Application Developers' Guide"><link rel="prev" href="adg-overview.html" title="Chapter 2. Overview"><link rel="next" href="adg-interface-by-app-expected.html" title="3.1. What can be expected by the application"></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">Chapter 3. 
      The public interface to <span class="emphasis"><em>Linux-PAM</em></span>
    </th></tr><tr><td width="20%" align="left"><a accesskey="p" href="adg-overview.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="adg-interface-by-app-expected.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="adg-interface"></a>Chapter 3. 
      The public interface to <span class="emphasis"><em>Linux-PAM</em></span>
    </h1></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl class="toc"><dt><span class="section"><a href="adg-interface-by-app-expected.html">3.1. What can be expected by the application</a></span></dt><dd><dl><dt><span class="section"><a href="adg-interface-by-app-expected.html#adg-pam_start">3.1.1. Initialization of PAM transaction</a></span></dt><dt><span class="section"><a href="adg-interface-by-app-expected.html#adg-pam_end">3.1.2. Termination of PAM transaction</a></span></dt><dt><span class="section"><a href="adg-interface-by-app-expected.html#adg-pam_set_item">3.1.3. Setting PAM items</a></span></dt><dt><span class="section"><a href="adg-interface-by-app-expected.html#adg-pam_get_item">3.1.4. Getting PAM items</a></span></dt><dt><span class="section"><a href="adg-interface-by-app-expected.html#adg-pam_strerror">3.1.5. Strings describing PAM error codes</a></span></dt><dt><span class="section"><a href="adg-interface-by-app-expected.html#adg-pam_fail_delay">3.1.6. Request a delay on failure</a></span></dt><dt><span class="section"><a href="adg-interface-by-app-expected.html#adg-pam_authenticate">3.1.7. Authenticating the user</a></span></dt><dt><span class="section"><a href="adg-interface-by-app-expected.html#adg-pam_setcred">3.1.8. Setting user credentials</a></span></dt><dt><span class="section"><a href="adg-interface-by-app-expected.html#adg-pam_acct_mgmt">3.1.9. Account validation management</a></span></dt><dt><span class="section"><a href="adg-interface-by-app-expected.html#adg-pam_chauthtok">3.1.10. Updating authentication tokens</a></span></dt><dt><span class="section"><a href="adg-interface-by-app-expected.html#adg-pam_open_session">3.1.11. Start PAM session management</a></span></dt><dt><span class="section"><a href="adg-interface-by-app-expected.html#adg-pam_close_session">3.1.12. terminating PAM session management</a></span></dt><dt><span class="section"><a href="adg-interface-by-app-expected.html#adg-pam_putenv">3.1.13. Set or change PAM environment variable</a></span></dt><dt><span class="section"><a href="adg-interface-by-app-expected.html#adg-pam_getenv">3.1.14. Get a PAM environment variable</a></span></dt><dt><span class="section"><a href="adg-interface-by-app-expected.html#adg-pam_getenvlist">3.1.15. Getting the PAM environment</a></span></dt></dl></dd><dt><span class="section"><a href="adg-interface-of-app-expected.html">3.2. What is expected of an application</a></span></dt><dd><dl><dt><span class="section"><a href="adg-interface-of-app-expected.html#adg-pam_conv">3.2.1. The conversation function</a></span></dt></dl></dd><dt><span class="section"><a href="adg-interface-programming-notes.html">3.3. Programming notes</a></span></dt></dl></div><p>
      Firstly, the relevant include file for the
      <span class="emphasis"><em>Linux-PAM</em></span> library is
      <code class="function">&lt;security/pam_appl.h&gt;</code>.
      It contains the definitions for a number of functions. After
      listing these functions, we collect some guiding remarks for
      programmers.
    </p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="adg-overview.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="adg-interface-by-app-expected.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 2. Overview </td><td width="20%" align="center"><a accesskey="h" href="Linux-PAM_ADG.html">Home</a></td><td width="40%" align="right" valign="top"> 3.1. What can be expected by the application</td></tr></table></div></body></html>

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