1 files changed, 60 insertions, 0 deletions
diff --git a/libdiskfs/file-getfh.c b/libdiskfs/file-getfh.c
new file mode 100644
index 00000000..a2dbb045
--- /dev/null
+++ b/libdiskfs/file-getfh.c
@@ -0,0 +1,60 @@
+/* Return a file handle (for nfs server support)
+
+   Copyright (C) 1997, 1999 Free Software Foundation
+
+   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; see the file COPYING.  If not, write to
+   the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#include <string.h>
+
+#include "priv.h"
+#include "fs_S.h"
+#include "fhandle.h"
+
+/* Return an NFS file handle for CRED in FH & FN_LEN.  */
+error_t
+diskfs_S_file_getfh (struct protid *cred, char **fh, unsigned *fh_len)
+{
+  struct node *node;
+  union diskfs_fhandle *f;
+
+  if (! cred)
+    return EOPNOTSUPP;
+
+  if (! idvec_contains (cred->user->uids, 0))
+    return EPERM;
+
+  assert (sizeof *f == sizeof f->bytes);
+
+  node = cred->po->np;
+
+  mutex_lock (&node->lock);
+
+  if (*fh_len < sizeof (struct diskfs_fhandle))
+    *fh = mmap (0, sizeof (struct diskfs_fhandle), PROT_READ|PROT_WRITE,
+		MAP_ANON, 0, 0);
+  *fh_len = sizeof *f;
+
+  f = (union diskfs_fhandle *) *fh;
+
+  bzero (f, sizeof *f);
+  f->data.cache_id = node->cache_id;
+  f->data.gen = node->dn_stat.st_gen;
+
+  mutex_unlock (&node->lock);
+
+  return 0;
+}