- (dtucker) [auth-skey.c defines.h monitor.c] Make skeychallenge explicitly
   4-arg, with compatibility for 3-arg versions.  From djm@, ok me.
diff --git a/auth-skey.c b/auth-skey.c
index f9ea03f..ac1af69 100644
--- a/auth-skey.c
+++ b/auth-skey.c
@@ -47,7 +47,8 @@
 	int len;
 	struct skey skey;
 
-	if (skeychallenge(&skey, authctxt->user, challenge) == -1)
+	if (_compat_skeychallenge(&skey, authctxt->user, challenge, 
+	    sizeof(challenge)) == -1)
 		return -1;
 
 	*name  = xstrdup("");