chiark / gitweb /
net-util: add support for Type=ethernet
[elogind.git] / man / sd_listen_fds.xml
index f6a9497d56588744a0ef27a9d2d14b58308fbbea..6a9e082180670dd1a8f8209083b331606f6f9178 100644 (file)
                 activation logic.</para>
 
                 <para>If the <parameter>unset_environment</parameter>
                 activation logic.</para>
 
                 <para>If the <parameter>unset_environment</parameter>
-                parameter is non-zero
+                parameter is non-zero,
                 <function>sd_listen_fds()</function> will unset the
                 <varname>$LISTEN_FDS</varname>/<varname>$LISTEN_PID</varname>
                 <function>sd_listen_fds()</function> will unset the
                 <varname>$LISTEN_FDS</varname>/<varname>$LISTEN_PID</varname>
-                environment variables before returning (regardless
+                environment variables before returning (regardless of
                 whether the function call itself succeeded or
                 not). Further calls to
                 <function>sd_listen_fds()</function> will then fail,
                 whether the function call itself succeeded or
                 not). Further calls to
                 <function>sd_listen_fds()</function> will then fail,
                 <para>If a daemon receives more than one file
                 descriptor, they will be passed in the same order as
                 configured in the systemd socket definition
                 <para>If a daemon receives more than one file
                 descriptor, they will be passed in the same order as
                 configured in the systemd socket definition
-                file. Nonetheless it is recommended to verify the
+                file. Nonetheless, it is recommended to verify the
                 correct socket types before using them. To simplify
                 correct socket types before using them. To simplify
-                this checking the functions
+                this checking, the functions
                 <citerefentry><refentrytitle>sd_is_fifo</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
                 <citerefentry><refentrytitle>sd_is_socket</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
                 <citerefentry><refentrytitle>sd_is_socket_inet</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
                 <citerefentry><refentrytitle>sd_is_socket_unix</refentrytitle><manvolnum>3</manvolnum></citerefentry>
                 <citerefentry><refentrytitle>sd_is_fifo</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
                 <citerefentry><refentrytitle>sd_is_socket</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
                 <citerefentry><refentrytitle>sd_is_socket_inet</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
                 <citerefentry><refentrytitle>sd_is_socket_unix</refentrytitle><manvolnum>3</manvolnum></citerefentry>
-                are provided. In order to maximize flexibility it is
+                are provided. In order to maximize flexibility, it is
                 recommended to make these checks as loose as possible
                 recommended to make these checks as loose as possible
-                without allowing incorrect setups. i.e. often the
+                without allowing incorrect setups. i.e. often, the
                 actual port number a socket is bound to matters little
                 for the service to work, hence it should not be
                 verified. On the other hand, whether a socket is a
                 actual port number a socket is bound to matters little
                 for the service to work, hence it should not be
                 verified. On the other hand, whether a socket is a
                 <varname>$LISTEN_FDS</varname>/<varname>$LISTEN_PID</varname>
                 was not set or was not correctly set for this daemon and
                 hence no file descriptors were received, 0 is
                 <varname>$LISTEN_FDS</varname>/<varname>$LISTEN_PID</varname>
                 was not set or was not correctly set for this daemon and
                 hence no file descriptors were received, 0 is
-                returned. Otherwise the number of file descriptors
+                returned. Otherwise, the number of file descriptors
                 passed is returned. The application may find them
                 starting with file descriptor SD_LISTEN_FDS_START,
                 i.e. file descriptor 3.</para>
                 passed is returned. The application may find them
                 starting with file descriptor SD_LISTEN_FDS_START,
                 i.e. file descriptor 3.</para>
                 <para>Internally, this function checks whether the
                 <varname>$LISTEN_PID</varname> environment variable
                 equals the daemon PID. If not, it returns
                 <para>Internally, this function checks whether the
                 <varname>$LISTEN_PID</varname> environment variable
                 equals the daemon PID. If not, it returns
-                immediately. Otherwise it parses the number passed in
+                immediately. Otherwise, it parses the number passed in
                 the <varname>$LISTEN_FDS</varname> environment
                 variable, then sets the FD_CLOEXEC flag for the parsed
                 number of file descriptors starting from
                 the <varname>$LISTEN_FDS</varname> environment
                 variable, then sets the FD_CLOEXEC flag for the parsed
                 number of file descriptors starting from
-                SD_LISTEN_FDS_START. Finally it returns the parsed
+                SD_LISTEN_FDS_START. Finally, it returns the parsed
                 number.</para>
 
                 <para>For details about the algorithm check the
                 liberally licensed reference implementation sources:
                 number.</para>
 
                 <para>For details about the algorithm check the
                 liberally licensed reference implementation sources:
-                <ulink url="http://cgit.freedesktop.org/systemd/systemd/plain/src/sd-daemon.c"/>
-                resp. <ulink
+                <ulink url="http://cgit.freedesktop.org/systemd/systemd/plain/src/libsystemd-daemon/sd-daemon.c"/>
+                and <ulink
                 url="http://cgit.freedesktop.org/systemd/systemd/plain/src/systemd/sd-daemon.h"/></para>
 
                 <para><function>sd_listen_fds()</function> is
                 implemented in the reference implementation's
                 <filename>sd-daemon.c</filename> and
                 <filename>sd-daemon.h</filename> files. These
                 url="http://cgit.freedesktop.org/systemd/systemd/plain/src/systemd/sd-daemon.h"/></para>
 
                 <para><function>sd_listen_fds()</function> is
                 implemented in the reference implementation's
                 <filename>sd-daemon.c</filename> and
                 <filename>sd-daemon.h</filename> files. These
-                interfaces are available as shared library, which can
+                interfaces are available as shared library, which can
                 be compiled and linked to with the
                 be compiled and linked to with the
-                <literal>libsystemd-daemon</literal>
-                <citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+                <constant>libsystemd-daemon</constant> <citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
                 file. Alternatively, applications consuming these APIs
                 may copy the implementation into their source
                 tree. For more details about the reference
                 file. Alternatively, applications consuming these APIs
                 may copy the implementation into their source
                 tree. For more details about the reference
-                implementation see
+                implementation, see
                 <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
 
                 <para>If the reference implementation is used as
                 drop-in files and -DDISABLE_SYSTEMD is set during
                 <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
 
                 <para>If the reference implementation is used as
                 drop-in files and -DDISABLE_SYSTEMD is set during
-                compilation this function will always return 0 and
+                compilation, this function will always return 0 and
                 otherwise become a NOP.</para>
         </refsect1>
 
         <refsect1>
                 <title>Environment</title>
 
                 otherwise become a NOP.</para>
         </refsect1>
 
         <refsect1>
                 <title>Environment</title>
 
-                <variablelist>
+                <variablelist class='environment-variables'>
                         <varlistentry>
                                 <term><varname>$LISTEN_PID</varname></term>
                                 <term><varname>$LISTEN_FDS</varname></term>
                         <varlistentry>
                                 <term><varname>$LISTEN_PID</varname></term>
                                 <term><varname>$LISTEN_FDS</varname></term>