libtreefs: remove unfinished and unused code

* libtreefs: Remove directory.

1 files changed, 0 insertions, 176 deletions

diff --git a/libtreefs/node-hooks.c b/libtreefs/node-hooks.c
deleted file mode 100644
index faffcd6a..00000000
--- a/libtreefs/node-hooks.c
+++ /dev/null
@@ -1,176 +0,0 @@
-/* Default hooks for nodes
-
-   Copyright (C) 1995 Free Software Foundation, Inc.
-
-   Written by Miles Bader <miles@gnu.ai.mit.edu>
-
-   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 this program; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-#include "treefs.h"
-
-/* ---------------------------------------------------------------- */
-/* These default hooks depend on stat information being correct.  */
-
-/* Returns the type of NODE, as an S_IFMT value (e.g., S_IFDIR).  The
-   default routine just looks at NODE's stat mode.  */
-int
-_treefs_node_type (struct treefs_node *node)
-{
-  return node->stat.st_mode & S_IFMT;
-}
-
-/* Return TRUE if NODE is `unlinked' -- that is, can be deleted when all
-   (in-memory) references go away.  */
-int
-_treefs_node_unlinked (struct treefs_node *node)
-{
-  return node->stat.st_nlinks == 0;
-}
-
-/* Changes the link count of NODE by CHANGE; if any error is returned, the
-   operation trying to change the link count will fail, so filesystems that
-   don't support real links can restrict it to 1 or 0.  This is mostly used
-   by the in-core directory code when it makes a link.  The default hook uses
-   the link field of NODE's stat entry.  */
-error_t
-_treefs_node_mod_link_count (struct treefs_node *node, int change)
-{
-  node->stat.st_nlinks += change;
-}
-
-
-/* ---------------------------------------------------------------- */
-/* These default hooks depend on stat information being correct.  */
-
-/* Returns the user and group that a newly started translator should be
-   authenticated as.  The default just returns the owner/group of NODE.  */
-error_t
-_treefs_node_get_trans_auth (struct treefs_node *node, uid_t *uid, gid_t *gid)
-{
-  *uid = node->stat.st_uid;
-  *gid = node->stat.st_gid;
-  return 0;
-}
-
-/* Check to see is the user identified by AUTH is permitted to do 
-   operation OP on node NP.  Op is one of S_IREAD, S_IWRITE, or S_IEXEC.
-   Return 0 if the operation is permitted and EACCES if not. */
-error_t 
-_treefs_node_access (struct treefs_node *node,
-		     int op, struct treefs_auth *auth)
-{
-  int gotit;
-  if (diskfs_auth_has_uid (auth, 0))
-    gotit = 1;
-  else if (auth->nuids == 0 && (node->stat.st_mode & S_IUSEUNK))
-    gotit = node->stat.st_mode & (op << S_IUNKSHIFT);
-  else if (!treefs_node_owned (node, auth))
-    gotit = node->stat.st_mode & op;
-  else if (treefs_auth_in_group (auth, node->stat.st_gid))
-    gotit = node->stat.st_mode & (op >> 3);
-  else 
-    gotit = node->stat.st_mode & (op >> 6);
-  return gotit ? 0 : EACCES;
-}
-
-/* Check to see if the user identified by AUTH is permitted to do owner-only
-   operations on node NP; if so, return 0; if not, return EPERM. */
-error_t
-_treefs_node_owned (struct treefs_node *node, struct treefs_auth *auth)
-{
-  /* Permitted if the user is the owner, superuser, or if the user
-     is in the group of the file and has the group ID as their user
-     ID.  (This last is colloquially known as `group leader'.) */
-  if (treefs_auth_has_uid (auth, node->stat.st_uid)
-      || treefs_auth_has_uid (auth, 0)
-      || (treefs_auth_in_group (auth, node->stat.st_gid)
-	  && treefs_auth_has_uid (auth, node->stat.st_gid)))
-    return 0;
-  else
-    return EPERM;
-}
-
-/* ---------------------------------------------------------------- */
-
-error_t
-_treefs_node_init_stat (struct treefs_node *node, struct treefs_node *dir,
-			mode_t mode, struct treefs_auth *auth)
-{
-  if (auth->nuids)
-    node->stat.st_uid = auth->uids[0];
-  else
-    {
-      mode &= ~S_ISUID;
-      if (dir)
-	node->stat.st_uid = dir->stat.st_uid;
-      else
-	node->stat.st_uid = -1;	/* XXX */
-    }
-
-  if (dir && diskfs_ingroup (dir->stat.st_gid, auth))
-    node->stat.st_gid = dir->stat.st_gid;
-  else if (auth->ngids)
-    node->stat.st_gid = auth->gids[0];
-  else
-    {
-      mode &= ~S_ISGID;
-      if (dir)
-	node->stat.st_gid = dir->stat.st_gid;
-      else
-	node->stat.st_gid = -1; /* XXX */
-    }
-  
-  node->stat.st_rdev = 0;
-  node->stat.st_nlink = 0;
-  node->stat.st_mode = mode;
-
-  node->stat.st_blocks = 0;
-  node->stat.st_size = 0;
-  node->stat.st_flags = 0;
-
-  return 0;
-}
-
-/* ---------------------------------------------------------------- */
-
-/* Called when the new peropen structure PO is made for NODE, with the
-   authorization in AUTH, opened with the flags FLAGS.  If an error is
-   returned, the open will fail with that error.  The default hook does
-   explicit authorization checks against AUTH using treefs_node_access, and
-   otherwise does nothing.  */
-error_t
-_treefs_init_peropen (struct treefs_node *node, struct treefs_peropen *po,
-		      int flags, struct treefs_auth *auth)
-{
-  error_t err;
-
-  if (flags & O_READ)
-    err = treefs_node_access (node, S_IREAD, auth);
-  if (!err && (flags & O_EXEC))
-    err = treefs_node_access (node, S_IEXEC, auth);
-  if (!err && (flags & O_WRITE))
-    {
-      if (type == S_IFDIR)
-	err = EISDIR;
-      else if (auth->po->node->fsys->readonly)
-	err = EROFS;
-      else
-	err = treefs_node_access (node, S_IWRITE, auth);
-    }
-
-  return err;
-}