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-.\" Copyright (c) 1983, 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.
-.\"
-.\" @(#)chroot.2 8.1 (Berkeley) 6/4/93
-.\"
-.Dd June 4, 1993
-.Dt CHROOT 2
-.Os BSD 4.2
-.Sh NAME
-.Nm chroot
-.Nd change root directory
-.Sh SYNOPSIS
-.Fd #include <unistd.h>
-.Ft int
-.Fn chroot "const char *dirname"
-.Sh DESCRIPTION
-.Fa Dirname
-is the address of the pathname of a directory, terminated by an ASCII NUL.
-.Fn Chroot
-causes
-.Fa dirname
-to become the root directory,
-that is, the starting point for path searches of pathnames
-beginning with
-.Ql / .
-.Pp
-In order for a directory to become the root directory
-a process must have execute (search) access for that directory.
-.Pp
-It should be noted that
-.Fn chroot
-has no effect on the process's current directory.
-.Pp
-This call is restricted to the super-user.
-.Sh RETURN VALUES
-Upon successful completion, a value of 0 is returned. Otherwise,
-a value of -1 is returned and
-.Va errno
-is set to indicate an error.
-.Sh ERRORS
-.Fn Chroot
-will fail and the root directory will be unchanged if:
-.Bl -tag -width [ENOTDIR]
-.It Bq Er ENOTDIR
-A component of the path name is not a directory.
-.It Bq Er EPERM
-The effective user ID is not the super-user.
-.It Bq Er ENAMETOOLONG
-A component of a pathname exceeded 255 characters,
-or an entire path name exceeded 1023 characters.
-.It Bq Er ENOENT
-The named directory does not exist.
-.It Bq Er EACCES
-Search permission is denied for any component of the path name.
-.It Bq Er ELOOP
-Too many symbolic links were encountered in translating the pathname.
-.It Bq Er EFAULT
-.Fa Path
-points outside the process's allocated address space.
-.It Bq Er EIO
-An I/O error occurred while reading from or writing to the file system.
-.El
-.Sh SEE ALSO
-.Xr chdir 2
-.Sh HISTORY
-The
-.Fn chroot
-function call appeared in
-.Bx 4.2 .
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