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.

1 files changed, 0 insertions, 112 deletions

diff --git a/libnetfs/fsys-get-children.c b/libnetfs/fsys-get-children.c
deleted file mode 100644
index fb3af914..00000000
--- a/libnetfs/fsys-get-children.c
+++ /dev/null
@@ -1,112 +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 <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
-netfs_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 (netfs_port_bucket,
-					   server,
-					   netfs_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 = netfs_root_node;
-
-    /* Lock the root node. netfs_attempt_lookup expects the directory to
-       be locked.  */
-    pthread_mutex_lock (&dp->lock);
-
-    /* Increase the reference count, it will be decremented in the loop
-       ahead.  */
-    netfs_nref (dp);
-
-    for (char *entry = elements;
-	 entry;
-	 entry = argz_next (elements, elements_len, entry))
-      {
-	struct node *next;
-	err = netfs_attempt_lookup (cred->user, dp, entry, &next);
-	/* netfs_attempt_lookup has unlocked dp and returned next
-	   locked, so there is no locking to do here.  */
-
-	/* Decrease reference count.  */
-	netfs_nrele (dp);
-
-	if (err)
-	  goto errout;
-
-	dp = next;
-      }
-
-    err = fshelp_access (&dp->nn_stat, S_IRUSR, cred->user);
-
-  errout:
-    /* Unlock and unreference the last node.  */
-    netfs_nput (dp);
-
-    free (elements);
-    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;
-}