Add man pages for all librc functions.

man/rc_config.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_CONFIG 3 SMM
+.Os OpenRC
+.Sh NAME
+.Nm rc_config_list , rc_config_load , rc_config_value , rc_yesno
+.Nd functions to query OpenRC service configurations
+.Sh LIBRARY
+Run Command library (librc, -lrc)
+.Sh SYNOPSIS
+.In rc.h
+.Ft "char **" Fn rc_config_list "const char *file"
+.Ft "char **" Fn rc_config_load "const char *file"
+.Ft "char *" Fn rc_config_value "const char *const *list" "const char *entry"
+.Ft bool Fn rc_yesno "const char *value"
+.Sh DESCRIPTION
+These functions provide an easy means of querying OpenRC configuration files.
+.Pp
+.Fn rc_config_list
+returns a list of non comment lines in
+.Fa file .
+.Fn rc_config_load
+does the same, but attempts to parse the line as if it was
+a shell assignment.
+.Fn rc_config_value
+returns the value of
+.Fa entry
+found in
+.Fa list .
+.Pp
+Each list should be freed using
+.Fn rc_strlist_free
+when done.
+.Pp
+.Fn rc_yesno
+returns if
+.Fa value
+is true, yes, on or 1 regardless of case, otherwise false.
+If
+.Fa value
+is also not false, no, off or 0 regardless of case then
+.Va errno
+is set to
+.Va EINVAL .
+.Sh SEE ALSO
+.Xr rc_strlist_free 3 ,
+.Xr sh 1
+.Sh AUTHORS
+.An "Roy Marples" Aq roy@marples.name