-void CtdlDirectoryAddUser(char *internet_addr, char *citadel_addr);
-void CtdlDirectoryDelUser(char *internet_addr, char *citadel_addr);
-int CtdlDirectoryLookup(char *target, char *internet_addr);
+int CtdlDirectoryAddUser(char *internet_addr, char *citadel_addr);
+int CtdlDirectoryDelUser(char *internet_addr, char *citadel_addr);
+int CtdlDirectoryLookup(char *target, char *internet_addr, size_t targbuflen);