diff --git a/toys.h b/toys.h
new file mode 100644
index 0000000..ec1ad76
--- /dev/null
+++ b/toys.h
@@ -0,0 +1,48 @@
+/* vi: set ts=4 :*/
+/* Toybox infrastructure.
+ *
+ * Copyright 2006 Rob Landley <rob@landley.net>
+ *
+ * Licensed under GPL version 2, see file LICENSE in this tarball for details.
+ */
+
+#include <stdio.h>
+#include <strings.h>
+
+/*
+name
+main()
+struct
+usage (short long example info)
+path (/usr/sbin)
+*/
+
+int toybox_main(void);
+int toysh_main(void);
+int df_main(void);
+
+extern struct toy_list {
+	char *name;
+	int (*toy_main)(void);
+} toy_list[];
+struct toy_list *find_toy_by_name(char *name);
+
+// Global context for this applet.
+
+extern struct toy_context {
+	struct toy_list *which;
+	int argc;
+	char **argv;
+	char buf[4096];
+} toys;
+
+struct toybox_data {;};
+struct toysh_data {;};
+struct df_data {;};
+
+union toy_union {
+	struct toybox_data toybox;
+	struct toysh_data toysh;
+	struct df_data df;
+} toy;
+