1.\" $OpenBSD: getrtable.2,v 1.3 2014/02/26 20:58:42 claudio Exp $ 2.\" 3.\" Copyright (c) 2009 Reyk Floeter <reyk@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: February 26 2014 $ 18.Dt GETRTABLE 2 19.Os 20.Sh NAME 21.Nm getrtable , 22.Nm setrtable 23.Nd get and set the default routing table of the current process 24.Sh SYNOPSIS 25.Fd #include <sys/types.h> 26.Fd #include <sys/socket.h> 27.Ft int 28.Fn getrtable "void" 29.Ft int 30.Fn setrtable "int rtableid" 31.Sh DESCRIPTION 32.Fn getrtable 33and 34.Fn setrtable 35manipulate the routing table and routing domain associated with the current 36process. 37.Pp 38Only the superuser is allowed to change the process routing table if 39it is already set to a non-zero value. 40.Sh RETURN VALUES 41.Fn getrtable 42returns the routing table of the current process. 43Upon successful completion, 44.Fn setrtable 45returns 0 if the call succeeds, \-1 if it fails. 46.Sh ERRORS 47The call succeeds unless: 48.Bl -tag -width Er 49.It Bq Er EINVAL 50The value of the 51.Fa rtableid 52argument is not a valid routing table. 53.It Bq Er EPERM 54The user is not the superuser and the routing table of the 55calling process is already set to a non-zero value. 56.El 57.Sh SEE ALSO 58.Xr getsockopt 2 , 59.Xr route 8 60.Sh HISTORY 61The 62.Fn getrtable 63and 64.Fn setrtable 65system calls appeared in 66.Ox 4.8 . 67