Preliminary support for RSA user authentication in SSH2! Most of the

error messages are currently wrong, and Pageant doesn't yet support
the new key type, and I haven't thoroughly tested that falling back
to password authentication and trying invalid keys etc all work. But
what I have here has successfully performed a public key
authentication, so it's working to at least some extent.

[originally from svn r973]

pageant.c

@@ -254,7 +254,7 @@ static void add_keyfile(char *filename) {
             }
         } else
             *passphrase = '\0';
-        ret = loadrsakey(filename, key, NULL, passphrase);
+        ret = loadrsakey(filename, key, passphrase);
         attempts++;
     } while (ret == -1);
     if (comment) sfree(comment);