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diff --git a/static/freebsd/man4/fd.4 4.html b/static/freebsd/man4/fd.4 4.html new file mode 100644 index 00000000..295bd9a1 --- /dev/null +++ b/static/freebsd/man4/fd.4 4.html @@ -0,0 +1,76 @@ +<table class="head"> + <tr> + <td class="head-ltitle">FD(4)</td> + <td class="head-vol">Device Drivers Manual</td> + <td class="head-rtitle">FD(4)</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">fd</code>, <code class="Nm">stdin</code>, + <code class="Nm">stdout</code>, <code class="Nm">stderr</code> — + <span class="Nd">file descriptor files</span></p> +</section> +<section class="Sh"> +<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1> +<p class="Pp">The files <span class="Pa">/dev/fd/0</span> through + <span class="Pa">/dev/fd/#</span> refer to file descriptors which can be + accessed through the file system. If the file descriptor is open and the + mode the file is being opened with is a subset of the mode of the existing + descriptor, the call:</p> +<div class="Bd Pp Bd-indent Li"> +<pre>fd = open("/dev/fd/0", mode);</pre> +</div> +<p class="Pp">and the call:</p> +<div class="Bd Pp Bd-indent Li"> +<pre>fd = fcntl(0, F_DUPFD, 0);</pre> +</div> +<p class="Pp">are equivalent.</p> +<p class="Pp">Opening the files <span class="Pa">/dev/stdin</span>, + <span class="Pa">/dev/stdout</span> and <span class="Pa">/dev/stderr</span> + is equivalent to the following calls:</p> +<div class="Bd Pp Bd-indent Li"> +<pre>fd = fcntl(STDIN_FILENO, F_DUPFD, 0); +fd = fcntl(STDOUT_FILENO, F_DUPFD, 0); +fd = fcntl(STDERR_FILENO, F_DUPFD, 0);</pre> +</div> +<p class="Pp">Flags to the <a class="Xr">open(2)</a> call other than + <code class="Dv">O_RDONLY</code>, <code class="Dv">O_WRONLY</code> and + <code class="Dv">O_RDWR</code> are ignored.</p> +</section> +<section class="Sh"> +<h1 class="Sh" id="IMPLEMENTATION_NOTES"><a class="permalink" href="#IMPLEMENTATION_NOTES">IMPLEMENTATION + NOTES</a></h1> +<p class="Pp">By default, <span class="Pa">/dev/fd</span> is provided by + <a class="Xr">devfs(4)</a>, which provides nodes for the first three file + descriptors. Some sites may require nodes for additional file descriptors; + these can be made available by mounting <a class="Xr">fdescfs(4)</a> on + <span class="Pa">/dev/fd</span>.</p> +</section> +<section class="Sh"> +<h1 class="Sh" id="FILES"><a class="permalink" href="#FILES">FILES</a></h1> +<dl class="Bl-tag Bl-compact"> + <dt><span class="Pa">/dev/fd/#</span></dt> + <dd style="width: auto;"> </dd> + <dt><span class="Pa">/dev/stdin</span></dt> + <dd style="width: auto;"> </dd> + <dt><span class="Pa">/dev/stdout</span></dt> + <dd style="width: auto;"> </dd> + <dt><span class="Pa">/dev/stderr</span></dt> + <dd style="width: auto;"> </dd> +</dl> +</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">devfs(4)</a>, <a class="Xr">fdescfs(4)</a>, + <a class="Xr">tty(4)</a></p> +</section> +</div> +<table class="foot"> + <tr> + <td class="foot-date">June 9, 1993</td> + <td class="foot-os">FreeBSD 15.0</td> + </tr> +</table> |