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<table class="head">
<tr>
<td class="head-ltitle">VOP_PATHCONF(9)</td>
<td class="head-vol">Kernel Developer's Manual</td>
<td class="head-rtitle">VOP_PATHCONF(9)</td>
</tr>
</table>
<div class="manual-text">
<section class="Sh">
<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
<p class="Pp"><code class="Nm">VOP_PATHCONF</code> —
<span class="Nd">return POSIX pathconf information</span></p>
</section>
<section class="Sh">
<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
<p class="Pp"><code class="In">#include
<<a class="In">sys/param.h</a>></code>
<br/>
<code class="In">#include <<a class="In">sys/vnode.h</a>></code>
<br/>
<code class="In">#include <<a class="In">sys/unistd.h</a>></code></p>
<p class="Pp"><var class="Ft">int</var>
<br/>
<code class="Fn">VOP_PATHCONF</code>(<var class="Fa" style="white-space: nowrap;">struct
vnode *vp</var>, <var class="Fa" style="white-space: nowrap;">int
name</var>, <var class="Fa" style="white-space: nowrap;">long
*retval</var>);</p>
</section>
<section class="Sh">
<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
<p class="Pp">The arguments are:</p>
<dl class="Bl-tag">
<dt><var class="Fa">vp</var></dt>
<dd>The vnode to get information about.</dd>
<dt><var class="Fa">name</var></dt>
<dd>The type of information to return.</dd>
<dt><var class="Fa">retval</var></dt>
<dd>The place to return the information.</dd>
</dl>
<p class="Pp">The value of <var class="Fa">name</var> specifies what should be
returned:</p>
<dl class="Bl-tag">
<dt id="_PC_LINK_MAX"><a class="permalink" href="#_PC_LINK_MAX"><code class="Dv">_PC_LINK_MAX</code></a></dt>
<dd>The maximum number of links to a file.</dd>
<dt id="_PC_NAME_MAX"><a class="permalink" href="#_PC_NAME_MAX"><code class="Dv">_PC_NAME_MAX</code></a></dt>
<dd>The maximum number of bytes in a file name.</dd>
<dt id="_PC_PATH_MAX"><a class="permalink" href="#_PC_PATH_MAX"><code class="Dv">_PC_PATH_MAX</code></a></dt>
<dd>The maximum number of bytes in a pathname.</dd>
<dt id="_PC_PIPE_BUF"><a class="permalink" href="#_PC_PIPE_BUF"><code class="Dv">_PC_PIPE_BUF</code></a></dt>
<dd>The maximum number of bytes which will be written atomically to a
pipe.</dd>
<dt id="_PC_CHOWN_RESTRICTED"><a class="permalink" href="#_PC_CHOWN_RESTRICTED"><code class="Dv">_PC_CHOWN_RESTRICTED</code></a></dt>
<dd>Return 1 if appropriate privileges are required for the
<a class="Xr">chown(2)</a> system call, otherwise 0.</dd>
<dt id="_PC_NO_TRUNC"><a class="permalink" href="#_PC_NO_TRUNC"><code class="Dv">_PC_NO_TRUNC</code></a></dt>
<dd>Return 1 if file names longer than <code class="Dv">KERN_NAME_MAX</code>
are truncated.</dd>
</dl>
</section>
<section class="Sh">
<h1 class="Sh" id="LOCKS"><a class="permalink" href="#LOCKS">LOCKS</a></h1>
<p class="Pp">The vnode will be locked on entry and should remain locked on
return.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN
VALUES</a></h1>
<p class="Pp">If <var class="Fa">name</var> is recognized,
<var class="Fa">*retval</var> is set to the specified value and zero is
returned, otherwise <code class="Er">EINVAL</code> is returned.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
ALSO</a></h1>
<p class="Pp"><a class="Xr">pathconf(2)</a>, <a class="Xr">vnode(9)</a></p>
</section>
<section class="Sh">
<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
<p class="Pp">This manual page was written by <span class="An">Doug
Rabson</span>.</p>
</section>
</div>
<table class="foot">
<tr>
<td class="foot-date">December 31, 2020</td>
<td class="foot-os">FreeBSD 15.0</td>
</tr>
</table>
|
