mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-15 04:20:28 +08:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/* Copyright (C) 1999, 2001 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <unistd.h>
|
|
|
|
#include <hurd.h>
|
|
#include <hurd/fd.h>
|
|
#include <hurd/port.h>
|
|
|
|
/* Change the current root directory to FD. */
|
|
int
|
|
fchroot (int fd)
|
|
{
|
|
error_t err;
|
|
file_t dir;
|
|
|
|
err = HURD_DPORT_USE (fd,
|
|
({
|
|
dir = __file_name_lookup_under (port, ".", 0, 0);
|
|
dir == MACH_PORT_NULL ? errno : 0;
|
|
}));
|
|
|
|
if (! err)
|
|
{
|
|
file_t root;
|
|
|
|
/* Prevent going through DIR's .. */
|
|
err = __file_reparent (dir, MACH_PORT_NULL, &root);
|
|
__mach_port_deallocate (__mach_task_self (), dir);
|
|
if (! err)
|
|
_hurd_port_set (&_hurd_ports[INIT_PORT_CRDIR], root);
|
|
}
|
|
|
|
return err ? __hurd_fail (err) : 0;
|
|
}
|