upstream commit

fix signed/unsigned errors reported by clang-3.7; add
 sshbuf_dup_string() to replace a common idiom of strdup(sshbuf_ptr()) with
 better safety checking; feedback and ok markus@

Upstream-ID: 71f926d9bb3f1efed51319a6daf37e93d57c8820

1 files changed, 3 insertions, 3 deletions

diff --git a/auth2.c b/auth2.c
index 71779622..9108b861 100644
--- a/auth2.c
+++ b/auth2.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: auth2.c,v 1.135 2015/01/19 20:07:45 markus Exp $ */
+/* $OpenBSD: auth2.c,v 1.136 2016/05/02 08:49:03 djm Exp $ */
 /*
  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
  *
@@ -424,8 +424,8 @@ authmethods_get(Authctxt *authctxt)
 		buffer_append(&b, authmethods[i]->name,
 		    strlen(authmethods[i]->name));
 	}
-	buffer_append(&b, "\0", 1);
-	list = xstrdup(buffer_ptr(&b));
+	if ((list = sshbuf_dup_string(&b)) == NULL)
+		fatal("%s: sshbuf_dup_string failed", __func__);
 	buffer_free(&b);
 	return list;
 }