whether the specified file descriptor refers to a socket. If the
<parameter>family</parameter> parameter is not
<constant>AF_UNSPEC</constant>, it is checked whether the socket
- is of the specified family (AF_UNIX, <constant>AF_INET</constant>,
- ...). If the <parameter>type</parameter> parameter is not 0, it is
- checked whether the socket is of the specified type
- (<constant>SOCK_STREAM</constant>,
+ is of the specified family (<constant>AF_UNIX</constant>,
+ <constant>AF_INET</constant>, ...). If the <parameter>type</parameter>
+ parameter is not 0, it is checked whether the socket is of the
+ specified type (<constant>SOCK_STREAM</constant>,
<constant>SOCK_DGRAM</constant>, ...). If the
<parameter>listening</parameter> parameter is positive, it is
checked whether the socket is in accepting mode, i.e.