convert to multicall binary

cmd/multicall.h

@@ -0,0 +1,27 @@
+/*
+ * cmd/multicall.h
+ * Purpose: structures for multicall frontend
+ *
+ * Copyright (c) 2020 Ariadne Conill <ariadne@dereferenced.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * This software is provided 'as is' and without any warranty, express or
+ * implied.  In no event shall the authors be liable for any damages arising
+ * from the use of this software.
+ */
+
+#ifndef IFUPDOWN_CMD_MULTICALL_H__GUARD
+#define IFUPDOWN_CMD_MULTICALL_H__GUARD
+
+#include "libifupdown/libifupdown.h"
+
+struct if_applet {
+	const char *name;
+	int (*const main)(int argc, char *argv[]);
+	void (*const usage)(void);
+};
+
+#endif