-static int m_whois(struct Client *, struct Client *, int, const char **);
-static int ms_whois(struct Client *, struct Client *, int, const char **);
+static void m_whois(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
+static void ms_whois(struct MsgBuf *, struct Client *, struct Client *, int, const char **);