Imported needed files for exclude path functionality

libisofs/exclude.c

@@ -0,0 +1,65 @@
+/***************************************************************************
+ *            exclude.c
+ *
+ *  Copyright  2006  Philippe Rouquier
+ *  Bonfire-app@wanadoo.fr
+ ***************************************************************************/
+
+/*
+ *  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 of the License, 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 Library 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.
+ */
+
+#include "hash.h"
+#include "exclude.h"
+
+static struct iso_hash_node *table[HASH_NODES]={0,};
+static int num=0;
+
+void
+iso_exclude_add_path(const char *path)
+{
+	if (!path)
+		return;
+
+	num += iso_hash_insert(table, path);
+}
+
+void
+iso_exclude_remove_path(const char *path)
+{
+	if (!num || !path)
+		return;
+
+	num -= iso_hash_remove(table, path);
+}
+
+void
+iso_exclude_empty(void)
+{
+	if (!num)
+		return;
+
+	iso_hash_empty(table);
+	num=0;
+}
+
+int
+iso_exclude_lookup(const char *path)
+{
+	if (!num || !path)
+		return 0;
+
+	return iso_hash_lookup(table, path);
+}