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@(#)chroot.2 6.3 (Berkeley) 08/26/85
chroot(dirname) char *dirname;
In order for a directory to become the root directory a process must have execute (search) access to the directory.
This call is restricted to the super-user.
15 [ENOTDIR] A component of the path name is not a directory.
15 [EINVAL] The pathname contains a character with the high-order bit set.
15 [ENAMETOOLONG] A component of a pathname exceeded 255 characters, or an entire path name exceeded 1023 characters.
15 [ENOENT] The named directory does not exist.
15 [EACCES] Search permission is denied for any component of the path name.
15 [ELOOP] Too many symbolic links were encountered in translating the pathname.
15 [EFAULT] Path points outside the process's allocated address space.
15 [EIO] An I/O error occurred while reading from or writing to the file system.