1 files changed, 150 insertions, 0 deletions
diff --git a/contrib/amd/amd/amfs_error.c b/contrib/amd/amd/amfs_error.c
new file mode 100644
index 0000000..ccb037b
--- /dev/null
+++ b/contrib/amd/amd/amfs_error.c
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+/*
+ * Copyright (c) 1997-1998 Erez Zadok
+ * Copyright (c) 1989 Jan-Simon Pendry
+ * Copyright (c) 1989 Imperial College of Science, Technology & Medicine
+ * Copyright (c) 1989 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Jan-Simon Pendry at Imperial College, London.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the University of
+ *      California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      %W% (Berkeley) %G%
+ *
+ * $Id: amfs_error.c,v 5.2.2.1 1992/02/09 15:08:21 jsp beta $
+ *
+ */
+
+/*
+ * Error file system.
+ * This is used as a last resort catchall if
+ * nothing else worked.  EFS just returns lots
+ * of error codes, except for unmount which
+ * always works of course.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif /* HAVE_CONFIG_H */
+#include <am_defs.h>
+#include <amd.h>
+
+static char * amfs_error_match(am_opts *fo);
+static int amfs_error_fmount(mntfs *mf);
+static int amfs_error_fumount(mntfs *mf);
+static void amfs_error_umounted(am_node *mp);
+
+
+/*
+ * Ops structure
+ */
+am_ops amfs_error_ops =
+{
+  "error",
+  amfs_error_match,
+  0,				/* amfs_error_init */
+  amfs_auto_fmount,
+  amfs_error_fmount,
+  amfs_auto_fumount,
+  amfs_error_fumount,
+  amfs_error_lookuppn,
+  amfs_error_readdir,
+  0,				/* amfs_error_readlink */
+  0,				/* amfs_error_mounted */
+  amfs_error_umounted,
+  find_amfs_auto_srvr,
+  FS_DISCARD
+};
+
+
+
+/*
+ * EFS file system always matches
+ */
+static char *
+amfs_error_match(am_opts *fo)
+{
+  return strdup("(error-hook)");
+}
+
+
+static int
+amfs_error_fmount(mntfs *mf)
+{
+  return ENOENT;
+}
+
+
+static int
+amfs_error_fumount(mntfs *mf)
+{
+  /*
+   * Always succeed
+   */
+  return 0;
+}
+
+
+/*
+ * EFS interface to RPC lookup() routine.
+ * Should never get here in the automounter.
+ * If we do then just give an error.
+ */
+am_node *
+amfs_error_lookuppn(am_node *mp, char *fname, int *error_return, int op)
+{
+  *error_return = ESTALE;
+  return 0;
+}
+
+
+/*
+ * EFS interface to RPC readdir() routine.
+ * Should never get here in the automounter.
+ * If we do then just give an error.
+ */
+int
+amfs_error_readdir(am_node *mp, nfscookie cookie, nfsdirlist *dp, nfsentry *ep, int count)
+{
+  return ESTALE;
+}
+
+
+/*
+ * umounted() callback for EFS.
+ *
+ * This prevents core-dumps on callbacks to error file-systems from
+ * nfsx_fumount.
+ */
+static void
+amfs_error_umounted(am_node *mp)
+{
+  /* nothing to do */
+}