<para><function>sd_is_socket()</function> may be
called to check whether the specified file descriptor
- refers to a socket. It the
+ refers to a socket. If the
<parameter>family</parameter> parameter is not
AF_UNSPEC it is checked whether the socket is of the
specified family (AF_UNIX, AF_INET, ...). If the
optionally checks the IPv4 or IPv6 port number the
socket is bound to, unless <parameter>port</parameter>
is zero. For this call <parameter>family</parameter>
- must be passed as either AF_UNSPEC, AF_INET or
+ must be passed as either AF_UNSPEC, AF_INET, or
AF_INET6.</para>
<para><function>sd_is_socket_unix()</function> is
<para>For details about the algorithms check the
liberally licensed reference implementation sources:
<ulink url="http://cgit.freedesktop.org/systemd/systemd/plain/src/libsystemd-daemon/sd-daemon.c"/>
- resp. <ulink
+ and <ulink
url="http://cgit.freedesktop.org/systemd/systemd/plain/src/systemd/sd-daemon.h"/></para>
<para><function>sd_is_fifo()</function> and the