diff options
Diffstat (limited to 'libdiskfs/file-get-children.c')
-rw-r--r-- | libdiskfs/file-get-children.c | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/libdiskfs/file-get-children.c b/libdiskfs/file-get-children.c deleted file mode 100644 index 98d5d60e..00000000 --- a/libdiskfs/file-get-children.c +++ /dev/null @@ -1,96 +0,0 @@ -/* file_get_children - - Copyright (C) 2013 Free Software Foundation, Inc. - - Written by Justus Winter <4winter@informatik.uni-hamburg.de> - - This file is part of the GNU Hurd. - - The GNU Hurd is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - The GNU Hurd 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with the GNU Hurd. If not, see <http://www.gnu.org/licenses/>. */ - -#include "priv.h" -#include "fs_S.h" - -#include <argz.h> - -/* Return any active translators bound to nodes below CRED. CHILDREN - is an argz vector containing file names relative to the path of - CRED. */ -error_t -diskfs_S_file_get_children (struct protid *cred, - char **children, - mach_msg_type_number_t *children_len) -{ - error_t err; - if (! cred - || cred->pi.bucket != diskfs_port_bucket - || cred->pi.class != diskfs_protid_class) - return EOPNOTSUPP; - - /* check_access performs the same permission check as is normally - done, i.e. it checks that all but the last path components are - executable by the requesting user and that the last component is - readable. */ - error_t check_access (const char *path) - { - error_t err; - char *elements = NULL; - size_t elements_len = 0; - - err = argz_create_sep (path, '/', &elements, &elements_len); - if (err) - return err; - - struct node *dp = diskfs_root_node; - - for (char *entry = elements; - entry; - entry = argz_next (elements, elements_len, entry)) - { - struct node *next; - err = diskfs_lookup (dp, entry, LOOKUP, &next, NULL, cred); - - if (dp != diskfs_root_node) - diskfs_nput (dp); - - if (err) - return err; - - dp = next; - } - - err = fshelp_access (&dp->dn_stat, S_IRUSR, cred->user); - diskfs_nput (dp); - return err; - } - - - char *c = NULL; - size_t c_len = 0; - - err = fshelp_get_active_translators (&c, &c_len, check_access, - cred->po->path); - if (err) - goto errout; - - err = iohelp_return_malloced_buffer (c, c_len, children, children_len); - if (err) - goto errout; - - c = NULL; /* c was freed by iohelp_return_malloced_buffer. */ - - errout: - free (c); - return err; -} |