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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>

Chapter 3. The public interface to Linux-PAM

Chapter 3. The public interface to Linux-PAM
Prev		Next

Chapter 3. The public interface to Linux-PAM

Table of Contents

3.1. What can be expected by the application

3.1.1. Initialization of PAM transaction
3.1.2. Termination of PAM transaction
3.1.3. Setting PAM items
3.1.4. Getting PAM items
3.1.5. Strings describing PAM error codes
3.1.6. Request a delay on failure
3.1.7. Authenticating the user
3.1.8. Setting user credentials
3.1.9. Account validation management
3.1.10. Updating authentication tokens
3.1.11. Start PAM session management
3.1.12. terminating PAM session management
3.1.13. Set or change PAM environment variable
3.1.14. Get a PAM environment variable
3.1.15. Getting the PAM environment

3.2. What is expected of an application

3.2.1. The conversation function

3.3. Programming notes

Firstly, the relevant include file for the Linux-PAM library is <security/pam_appl.h>. It contains the definitions for a number of functions. After listing these functions, we collect some guiding remarks for programmers.

Prev		Next
Chapter 2. Overview	Home	3.1. What can be expected by the application