CHROOT (2)
change root directory
SYNOPSIS
#include <unistd.h>
int chroot(const char * path );
DESCRIPTION
chroot
changes the root directory to that specified in
path .
This directory will be used for path names beginning with /. The root
directory is inherited by all children of the current process.
Only the super-user may change the root directory.
Note that this call does not change the current working directory,
so that `.' can be outside the tree rooted at `/'.
RETURN VALUE
On success, zero is returned. On error, -1 is returned, and
errno
is set appropriately.
ERRORS
Depending on the file system, other errors can be returned. The more
general errors are listed below:
EPERM
The effective UID is not zero.
EFAULT
path
points outside your accessible address space.
ENAMETOOLONG
ENOENT
ENOMEM
Insufficient kernel memory was available.
ENOTDIR
A component of
path
is not a directory.
EACCES
Search permission is denied on a component of the path prefix.
ELOOP
Too many symbolic links were encountered in resolving
path .
EIO
CONFORMING TO
SVr4, SVID, 4.4BSD, X/OPEN. This function is not part of POSIX.1.
SVr4 documents additional EINTR, ENOLINK and EMULTIHOP error conditions.
X/OPEN does not document EIO, ENOMEM or EFAULT error conditions.
This interface is marked as legacy by X/OPEN.
SEE ALSO
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