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diff --git a/src/chown-core.h b/src/chown-core.h
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+++ b/src/chown-core.h
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+/* chown-core.h -- types and prototypes shared by chown and chgrp.
+   Copyright (C) 2000 Free Software Foundation.
+
+   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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef CHOWN_CORE_H
+# define CHOWN_CORE_H
+
+enum Change_status
+{
+  CH_NOT_APPLIED,
+  CH_SUCCEEDED,
+  CH_FAILED,
+  CH_NO_CHANGE_REQUESTED
+};
+
+enum Verbosity
+{
+  /* Print a message for each file that is processed.  */
+  V_high,
+
+  /* Print a message for each file whose attributes we change.  */
+  V_changes_only,
+
+  /* Do not be verbose.  This is the default. */
+  V_off
+};
+
+struct Chown_option
+{
+  /* Level of verbosity.  */
+  enum Verbosity verbosity;
+
+  /* If nonzero, change the ownership of directories recursively. */
+  int recurse;
+
+  /* If nonzero, and the systems has support for it, change the ownership
+     of symbolic links rather than any files they point to.  */
+  int change_symlinks;
+
+  /* If nonzero, force silence (no error messages). */
+  int force_silent;
+
+  /* The name of the user to which ownership of the files is being given. */
+  char *user_name;
+
+  /* The name of the group to which ownership of the files is being given. */
+  char *group_name;
+};
+
+void
+chopt_init (struct Chown_option *chopt);
+
+int
+change_file_owner PARAMS ((int cmdline_arg, const char *file,
+                          uid_t user, gid_t group,
+                          uid_t old_user, gid_t old_group,
+                          struct Chown_option const *chopt));
+
+#endif /* CHOWN_CORE_H */