<refname>sd_is_socket</refname>
<refname>sd_is_socket_inet</refname>
<refname>sd_is_socket_unix</refname>
+ <refname>sd_is_mq</refname>
<refpurpose>Check the type of a file descriptor</refpurpose>
</refnamediv>
<paramdef>size_t <parameter>length</parameter></paramdef>
</funcprototype>
+ <funcprototype>
+ <funcdef>int <function>sd_is_mq</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>const char *<parameter>path</parameter></paramdef>
+ </funcprototype>
+
</funcsynopsis>
</refsynopsisdiv>
address, including the initial 0 byte and set
<parameter>path</parameter> to the initial 0 byte of
the socket address.</para>
+
+ <para><function>sd_is_mq()</function> may be called to
+ check whether the specified file descriptor refers to
+ a POSIX message queue. If the
+ <parameter>path</parameter> parameter is not NULL, it
+ is checked whether the message queue is bound to the
+ specified name.</para>
</refsect1>
<refsect1>