+#ifndef PFIXTOOLS_GREYLIST_H
+#define PFIXTOOLS_GREYLIST_H
+
+struct greylist_cfg {
+ unsigned lookup_by_host : 1;
+ int delay;
+ int retry_window;
+ int client_awl;
+};
+
+extern struct greylist_cfg greylist_cfg;
+
+int greylist_initialize(const char *directory, const char *prefix);
+