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author | Justus Winter <4winter@informatik.uni-hamburg.de> | 2014-01-30 10:53:46 +0100 |
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committer | Justus Winter <4winter@informatik.uni-hamburg.de> | 2014-02-25 11:18:59 +0100 |
commit | 9366d6b2e48ba409366adc0516825c41a86dec9b (patch) | |
tree | 10431eba7bdaf8bfbb8811a5c4fed93616c5eb0d /libdiskfs/fsys-get-children.c | |
parent | d4129a39dda08e8cfbc002461e1e76103de8f108 (diff) | |
download | hurd-9366d6b2e48ba409366adc0516825c41a86dec9b.tar.gz hurd-9366d6b2e48ba409366adc0516825c41a86dec9b.tar.bz2 hurd-9366d6b2e48ba409366adc0516825c41a86dec9b.zip |
hurd: fix the get-children and get-source procedures
* hurd/fs.defs: Add file_get_children and file_get_source.
* hurd/fsys.defs: Remove fsys_get_children and fsys_get_source.
* libdiskfs/fsys-get-children.c: Rename and adapt accordingly.
* libdiskfs/fsys-get-source.c: Likewise.
* libnetfs/fsys-get-children.c: Likewise.
* libnetfs/fsys-get-source.c: Likewise.
* libtrivfs/fsys-get-children.c: Likewise.
* libtrivfs/fsys-get-source.c: Likewise.
* libdiskfs/diskfs.h: Adapt prototype and comment.
* libnetfs/netfs.h: Likewise.
* libtrivfs/trivfs.h: Likewise.
* libdiskfs/get-source.c: Adapt default implementation, provide
diskfs_disk_name by default.
* libnetfs/netfs.h: Adapt default implementation.
* libtrivfs/get-source.c: Likewise.
* libdiskfs/Makefile: Adapt accordingly.
* libnetfs/Makefile: Likewise.
* libtrivfs/Makefile: Likewise.
* trans/symlink.c: Likewise.
* trans/mtab.c: Likewise.
Diffstat (limited to 'libdiskfs/fsys-get-children.c')
-rw-r--r-- | libdiskfs/fsys-get-children.c | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/libdiskfs/fsys-get-children.c b/libdiskfs/fsys-get-children.c deleted file mode 100644 index 69c9963e..00000000 --- a/libdiskfs/fsys-get-children.c +++ /dev/null @@ -1,99 +0,0 @@ -/* fsys_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 "fsys_S.h" - -#include <argz.h> - -/* Return any active translators bound to nodes of the receiving - filesystem. CHILDREN is an argz vector containing file names - relative to the root of the receiving translator. */ -error_t -diskfs_S_fsys_get_children (fsys_t server, - mach_port_t reply, - mach_msg_type_name_t replyPoly, - char **children, - mach_msg_type_number_t *children_len) -{ - error_t err; - - struct protid *cred = ports_lookup_port (diskfs_port_bucket, - server, - diskfs_protid_class); - if (! cred) - 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); - 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; -} |