Add man pages for all librc functions.

man/rc_plugin_hook.3

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+.\" Copyright 2007 Roy Marples
+.\" All rights reserved
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd Dec 24, 2007
+.Dt RC_PLUGIN_HOOK 3 SMM
+.Os OpenRC
+.Sh NAME
+.Nm rc_plugin_hook
+.Nd hooks plugins into OpenRC services
+.Sh LIBRARY
+Run Command library (librc, -lrc)
+.Sh SYNOPSIS
+.In rc.h
+.Ft int Fn rc_plugin_hook "rc_hook_t hook" "const char *name"
+.Sh DESCRIPTION
+.Fn rc_plugin_hook
+is called for each shareable object found in
+.Pa /lib/rc/plugins .
+.Fa hook
+is set to the hook running, and
+.Fa name
+is set to the name of the runlevel or name of the service.
+.Pp
+Plugins can affect the parent environemnt by writing NULL separated strings to
+.Va rc_environ_fd .
+.Sh SEE ALSO
+.Xr rc 8 ,
+.Xr runscript 8
+.Sh AUTHORS
+.An "Roy Marples" Aq roy@marples.name