1 files changed, 60 insertions, 0 deletions
diff --git a/contrib/tar/lib/backupfile.h b/contrib/tar/lib/backupfile.h
new file mode 100644
index 0000000..b9b973c
--- /dev/null
+++ b/contrib/tar/lib/backupfile.h
@@ -0,0 +1,60 @@
+/* backupfile.h -- declarations for making Emacs style backup file names
+   Copyright (C) 1990-1992, 1997-1999 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; see the file COPYING.
+   If not, write to the Free Software Foundation,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef BACKUPFILE_H_
+# define BACKUPFILE_H_
+
+/* When to make backup files. */
+enum backup_type
+{
+  /* Never make backups. */
+  none,
+
+  /* Make simple backups of every file. */
+  simple,
+
+  /* Make numbered backups of files that already have numbered backups,
+     and simple backups of the others. */
+  numbered_existing,
+
+  /* Make numbered backups of every file. */
+  numbered
+};
+
+# define VALID_BACKUP_TYPE(Type)	\
+  ((Type) == none			\
+   || (Type) == simple			\
+   || (Type) == numbered_existing	\
+   || (Type) == numbered)
+
+extern char const *simple_backup_suffix;
+
+# ifndef PARAMS
+#  if defined PROTOTYPES || (defined __STDC__ && __STDC__)
+#   define PARAMS(Args) Args
+#  else
+#   define PARAMS(Args) ()
+#  endif
+# endif
+
+char *find_backup_file_name PARAMS ((char const *, enum backup_type));
+enum backup_type get_version PARAMS ((char const *context, char const *arg));
+enum backup_type xget_version PARAMS ((char const *context, char const *arg));
+void addext PARAMS ((char *, char const *, int));
+
+#endif /* ! BACKUPFILE_H_ */