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<h3 class="section">34.10 Group Database Functions</h3>
<p>Octave's group database functions return information in a structure
with the following fields.
<dl>
<dt><code>name</code><dd>The user name.
<br><dt><code>passwd</code><dd>The encrypted password, if available.
<br><dt><code>gid</code><dd>The numeric group id.
<br><dt><code>mem</code><dd>The members of the group.
</dl>
<p>In the descriptions of the following functions, this data structure is
referred to as a <var>grp_struct</var>.
<!-- ./DLD-FUNCTIONS/getgrent.cc -->
<p><a name="doc_002dgetgrent"></a>
<div class="defun">
— Loadable Function: <var>grp_struct</var> = <b>getgrent</b> ()<var><a name="index-getgrent-2437"></a></var><br>
<blockquote><p>Return an entry from the group database, opening it if necessary.
Once the end of the data has been reached, <code>getgrent</code> returns 0.
</p></blockquote></div>
<!-- ./DLD-FUNCTIONS/getgrent.cc -->
<p><a name="doc_002dgetgrgid"></a>
<div class="defun">
— Loadable Function: <var>grp_struct</var> = <b>getgrgid</b> (<var>gid</var>)<var>.<a name="index-getgrgid-2438"></a></var><br>
<blockquote><p>Return the first entry from the group database with the group ID
<var>gid</var>. If the group ID does not exist in the database,
<code>getgrgid</code> returns 0.
</p></blockquote></div>
<!-- ./DLD-FUNCTIONS/getgrent.cc -->
<p><a name="doc_002dgetgrnam"></a>
<div class="defun">
— Loadable Function: <var>grp_struct</var> = <b>getgrnam</b> (<var>name</var>)<var><a name="index-getgrnam-2439"></a></var><br>
<blockquote><p>Return the first entry from the group database with the group name
<var>name</var>. If the group name does not exist in the database,
<code>getgrnam</code> returns 0.
</p></blockquote></div>
<!-- ./DLD-FUNCTIONS/getgrent.cc -->
<p><a name="doc_002dsetgrent"></a>
<div class="defun">
— Loadable Function: <b>setgrent</b> ()<var><a name="index-setgrent-2440"></a></var><br>
<blockquote><p>Return the internal pointer to the beginning of the group database.
</p></blockquote></div>
<!-- ./DLD-FUNCTIONS/getgrent.cc -->
<p><a name="doc_002dendgrent"></a>
<div class="defun">
— Loadable Function: <b>endgrent</b> ()<var><a name="index-endgrent-2441"></a></var><br>
<blockquote><p>Close the group database.
</p></blockquote></div>
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