1.\" 2.\" Copyright (c) 2003 Joseph Koshy <jkoshy@freebsd.org> 3.\" 4.\" All rights reserved. 5.\" 6.\" This program is free software. 7.\" 8.\" Redistribution and use in source and binary forms, with or without 9.\" modification, are permitted provided that the following conditions 10.\" are met: 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 2. Redistributions in binary form must reproduce the above copyright 14.\" notice, this list of conditions and the following disclaimer in the 15.\" documentation and/or other materials provided with the distribution. 16.\" 17.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR 18.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT, 21.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27.\" 28.\" $FreeBSD$ 29.\" 30.Dd December 11, 2003 31.Os 32.Dt PRISON_CHECK 9 33.Sh NAME 34.Nm prison_check 35.Nd determine if two credentials belong to the same jail 36.Sh SYNOPSIS 37.In sys/jail.h 38.Ft int 39.Fn prison_check "struct ucred *cred1" "struct ucred *cred2" 40.Sh DESCRIPTION 41This function can be used to determine if the two credentials 42.Fa cred1 43and 44.Fa cred2 45belong to the same jail. 46.Sh RETURN VALUES 47The 48.Fn prison_check 49function 50returns 51.Er ESRCH 52if 53.Fa cred1 54has been jailed, and 55.Fa cred1 56and 57.Fa cred2 58do not belong to the same jail. 59In all other cases, 60.Fn prison_check 61returns zero. 62.Sh SEE ALSO 63.Xr jail 2 64