From 5fd83771641d15c418f747bd343ba6738d3875f7 Mon Sep 17 00:00:00 2001 From: Cameron Katri Date: Sun, 9 May 2021 14:20:58 -0400 Subject: Import macOS userland adv_cmds-176 basic_cmds-55 bootstrap_cmds-116.100.1 developer_cmds-66 diskdev_cmds-667.40.1 doc_cmds-53.60.1 file_cmds-321.40.3 mail_cmds-35 misc_cmds-34 network_cmds-606.40.1 patch_cmds-17 remote_cmds-63 shell_cmds-216.60.1 system_cmds-880.60.2 text_cmds-106 --- shell_cmds/chroot/chroot.8 | 102 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 shell_cmds/chroot/chroot.8 (limited to 'shell_cmds/chroot/chroot.8') diff --git a/shell_cmds/chroot/chroot.8 b/shell_cmds/chroot/chroot.8 new file mode 100644 index 0000000..fce026b --- /dev/null +++ b/shell_cmds/chroot/chroot.8 @@ -0,0 +1,102 @@ +.\" Copyright (c) 1988, 1991, 1993 +.\" The Regents of the University of California. 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. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. +.\" +.\" from: @(#)chroot.8 8.1 (Berkeley) 6/9/93 +.\" $NetBSD: chroot.8,v 1.7 1998/10/06 03:47:50 mrg Exp $ +.\" +.Dd October 6, 1998 +.Dt CHROOT 8 +.Os BSD 4.3 +.Sh NAME +.Nm chroot +.Nd change root directory +.Sh SYNOPSIS +.Nm +.Op Fl u user +.Op Fl g group +.Op Fl G group,group,... +.Ar newroot +.Op Ar command +.Sh DESCRIPTION +The +.Nm +command changes its root directory to the supplied directory +.Ar newroot +and exec's +.Ar command , +if supplied, or an interactive copy of your shell. +.Pp +If the +.Fl u , +.Fl g +or +.Fl G +options are given, the user, group and group list of the process are +set to these values after the chroot has taken place. See +.Xr setgid 2 , +.Xr setgroups 2 , +.Xr setuid 2 , +.Xr getgrnam 3 +and +.Xr getpwnam 3 . +.Pp +Note, +.Ar command +or the shell are run as your real-user-id. +.Sh ENVIRONMENT +The following environment variable is referenced by +.Nm : +.Bl -tag -width SHELL +.It Ev SHELL +If set, +the string specified by +.Ev SHELL +is interpreted as the name of +the shell to exec. +If the variable +.Ev SHELL +is not set, +.Pa /bin/sh +is used. +.El +.Sh SEE ALSO +.Xr chdir 2 , +.Xr chroot 2 , +.Xr environ 7 +.Sh HISTORY +The +.Nm +utility first appeared in +.Bx 4.4 . +.Sh SECURITY CONSIDERATIONS +.Nm +should never be installed setuid root, as it would then be possible +to exploit the program to gain root privileges. -- cgit v1.2.3-56-ge451