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Diffstat (limited to 'sysdeps/mach/hurd/chroot.c')
-rw-r--r-- | sysdeps/mach/hurd/chroot.c | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/sysdeps/mach/hurd/chroot.c b/sysdeps/mach/hurd/chroot.c deleted file mode 100644 index 04054ca93e..0000000000 --- a/sysdeps/mach/hurd/chroot.c +++ /dev/null @@ -1,65 +0,0 @@ -/* Copyright (C) 1991-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <string.h> -#include <unistd.h> - -#include <hurd.h> -#include <hurd/port.h> - -/* Make PATH be the root directory (the starting point for absolute - paths). Note that while on traditional UNIX systems this call is - restricted to the super-user, it isn't on the Hurd. */ -int -chroot (const char *path) -{ - const char *lookup; - size_t len; - file_t dir, root; - error_t err; - - /* Append trailing "/." to directory name to force ENOTDIR if it's not a - directory and EACCES if we don't have search permission. */ - len = strlen (path); - if (len >= 2 && path[len - 2] == '/' && path[len - 1] == '.') - lookup = path; - else if (len == 0) - /* Special-case empty file name according to POSIX. */ - return __hurd_fail (ENOENT); - else - { - char *n = alloca (len + 3); - memcpy (n, path, len); - n[len] = '/'; - n[len + 1] = '.'; - n[len + 2] = '\0'; - lookup = n; - } - - dir = __file_name_lookup (lookup, 0, 0); - if (dir == MACH_PORT_NULL) - return -1; - - /* Prevent going through DIR's .. */ - err = __file_reparent (dir, MACH_PORT_NULL, &root); - __mach_port_deallocate (__mach_task_self (), dir); - if (err) - return __hurd_fail (err); - - _hurd_port_set (&_hurd_ports[INIT_PORT_CRDIR], root); - return 0; -} |