1 files changed, 94 insertions, 0 deletions
diff --git a/libdiskfs/dir-rmdir.c b/libdiskfs/dir-rmdir.c
new file mode 100644
index 00000000..a90ff07b
--- /dev/null
+++ b/libdiskfs/dir-rmdir.c
@@ -0,0 +1,94 @@
+/* libdsikfs implementation of fs.defs: dir_rmdir
+   Copyright (C) 1992,93,94,95,96,97,99 Free Software Foundation, Inc.
+
+   This program 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.
+
+   This program 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 "priv.h"
+#include "fs_S.h"
+#include <hurd/fsys.h>
+
+/* Implement dir_rmdir as described in <hurd/fs.defs>. */
+kern_return_t
+diskfs_S_dir_rmdir (struct protid *dircred,
+		    char *name)
+{
+  struct node *dnp;
+  struct node *np;
+  struct dirstat *ds = alloca (diskfs_dirstat_size);
+  error_t error;
+
+  /* This routine cleans up the state we have after calling diskfs_lookup.
+     After that call, all returns are done with `return done (ERROR, NP);'.  */
+  inline error_t done (error_t error, struct node *np)
+    {
+      if (np)
+	diskfs_nput (np);
+
+      if (ds)
+	diskfs_drop_dirstat (dnp, ds);
+      mutex_unlock (&dnp->lock);
+
+      return error;
+    }
+
+  if (!dircred)
+    return EOPNOTSUPP;
+
+  dnp = dircred->po->np;
+  if (diskfs_check_readonly ())
+    return EROFS;
+
+  mutex_lock (&dnp->lock);
+
+  error = diskfs_lookup (dnp, name, REMOVE, &np, ds, dircred);
+  if (error)
+    return done (error == EAGAIN ? ENOTEMPTY : error, 0);
+
+  if (dnp == np)
+    {
+      /* Attempt to rmdir(".") */
+      diskfs_nrele (np);
+      diskfs_drop_dirstat (dnp, ds);
+      mutex_unlock (&dnp->lock);
+      return EINVAL;
+    }
+
+  if ((np->dn_stat.st_mode & S_IPTRANS) || fshelp_translated (&np->transbox))
+    /* Attempt to rmdir a translated node.  */
+    return done (EBUSY, np);
+
+  if (!S_ISDIR (np->dn_stat.st_mode))
+    return done (ENOTDIR, np);
+
+  if (!diskfs_dirempty (np, dircred))
+    return done (ENOTEMPTY, np);
+
+  /* Here we go!  */
+  error = diskfs_dirremove (dnp, np, name, ds);
+  ds = 0;
+
+  if (!error)
+    {
+      np->dn_stat.st_nlink--;
+      np->dn_set_ctime = 1;
+      diskfs_clear_directory (np, dnp, dircred);
+      if (diskfs_synchronous)
+	diskfs_file_update (np, 1);
+    }
+  if (diskfs_synchronous)
+    diskfs_file_update (dnp, 1);
+
+  return done (error, np);
+}