upstream commit

deprecate key_load_private_pem() and
 sshkey_load_private_pem() interfaces. Refactor the generic key loading API to
 not require pathnames to be specified (they weren't really used).

Fixes a few other things en passant:

Makes ed25519 keys work for hostbased authentication (ssh-keysign
previously used the PEM-only routines).

Fixes key comment regression bz#2306: key pathnames were being lost as
comment fields.

ok markus@
diff --git a/sshconnect2.c b/sshconnect2.c
index ad20fae..6a7b699 100644
--- a/sshconnect2.c
+++ b/sshconnect2.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: sshconnect2.c,v 1.212 2014/12/21 22:27:56 djm Exp $ */
+/* $OpenBSD: sshconnect2.c,v 1.213 2015/01/08 10:14:08 djm Exp $ */
 /*
  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
  * Copyright (c) 2008 Damien Miller.  All rights reserved.
@@ -1489,6 +1489,8 @@
 	u_int blen, slen;
 	int ok, i, found = 0;
 
+	/* XXX provide some way to allow user to specify key types attempted */
+
 	/* check for a useful key */
 	for (i = 0; i < sensitive->nkeys; i++) {
 		private = sensitive->keys[i];