- of communication.
- At present, the values
- <literal>tcpip_type</literal>
- and
- <literal>ssl_type</literal>
- are recognized. The function returns a null-pointer if a system error
- occurs. The <literal>blocking</literal> parameter should be one if
+ of communication. At present the following values are supported:
+ </para>
+
+ <variablelist>
+ <varlistentry><term><literal>tcpip_type</literal></term>
+ <listitem><para>TCP/IP (BER over TCP/IP)
+ </para></listitem>
+ </varlistentry>
+ <varlistentry><term><literal>ssl_type</literal></term>
+ <listitem><para>Secure Socket Layer (SSL). This COMSTACK
+ is experimental and is not fully implemented.
+ </para></listitem>
+ </varlistentry>
+ <varlistentry><term><literal>unix_type</literal></term>
+ <listitem><para>Unix socket (unix only). Fast local transfer via
+ file socket. See <citerefentry><refentrytitle>unix</refentrytitle>
+ <manvolnum>7</manvolnum></citerefentry>.
+ </para></listitem>
+ </varlistentry>
+ </variablelist>
+
+ <para>
+ The <function>cs_create</function> function returns a null-pointer
+ if a system error occurs.
+ The <literal>blocking</literal> parameter should be one if