ed as described
in the <tt>execve</tt> manpage.<p>


<h4><a name = "S2.2">2.2 File descriptors</a></h4>

The Web server leaves a single file descriptor,
<tt>FCGI_LISTENSOCK_FILENO</tt>, open when the application begins
execution.  This descriptor refers to a listening socket created by
the Web server.<p>

<tt>FCGI_LISTENSOCK_FILENO</tt> equals <tt>STDIN_FILENO</tt>.
The standard descriptors
<tt>STDOUT_FILENO</tt> and <tt>STDERR_FILENO</tt> are closed when
the application begins execution.  A reliable method