struct ctdluser **uret, char *cret);
int CtdlIPCAideSetUserParameters(CtdlIPC *ipc, const struct ctdluser *uret, char *cret);
int CtdlIPCRenameUser(CtdlIPC *ipc, char *oldname, char *newname, char *cret);
-int CtdlIPCGetMessageExpirationPolicy(CtdlIPC *ipc, int which,
+int CtdlIPCGetMessageExpirationPolicy(CtdlIPC *ipc, GPEXWhichPolicy which,
struct ExpirePolicy **policy, char *cret);
int CtdlIPCSetMessageExpirationPolicy(CtdlIPC *ipc, int which,
struct ExpirePolicy *policy, char *cret);