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.\" $OpenBSD: getrdomain.2,v 1.2 2009/11/27 22:02:55 jmc Exp $
.\"
.\" Copyright (c) 2009 Reyk Floeter <reyk@openbsd.org>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: November 27 2009 $
.Dt GETRDOMAIN 2
.Os
.Sh NAME
.Nm getrdomain ,
.Nm setrdomain
.Nd "get and set the default routing domain of the current process"
.Sh SYNOPSIS
.Fd #include <sys/types.h>
.Fd #include <sys/socket.h>
.Ft int
.Fn getrdomain "void"
.Ft int
.Fn setrdomain "int rdomain"
.Sh DESCRIPTION
.Fn getrdomain
and
.Fn setrdomain
manipulate the routing domain associated with the current process.
.Pp
Only the superuser is allowed to change the process routing domain if
it is already set to a non-zero value.
.Sh RETURN VALUES
A 0 is returned if the call succeeds, \-1 if it fails.
.Sh ERRORS
The call succeeds unless:
.Bl -tag -width Er
.It Bq Er EINVAL
The value of the
.Fa rdomain
argument is not a valid routing domain.
.It Bq Er EPERM
The user is not the superuser and the routing domain of the
calling process is already set to a non-zero value.
.El
.Sh SEE ALSO
.Xr getsockopt 2 ,
.Xr setsockopt 2 ,
.Xr route 8
.Sh HISTORY
The
.Fn getrdomain
and
.Fn setrdomain
system calls appeared in
.Ox 4.7 .
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