upstream: initialize cname in case ai_canonname is NULL or too

long; ok djm

OpenBSD-Commit-ID: c27984636fdb1035d1642283664193e91aab6e37

1 files changed, 3 insertions, 2 deletions

diff --git a/ssh.c b/ssh.c
index a983a108b..9713b61e1 100644
--- a/ssh.c
+++ b/ssh.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh.c,v 1.520 2020/02/18 08:49:49 dtucker Exp $ */
+/* $OpenBSD: ssh.c,v 1.521 2020/03/06 18:20:02 markus Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -248,6 +248,8 @@ resolve_host(const char *name, int port, int logerr, char *cname, size_t clen)
 
         if (port <= 0)
                 port = default_ssh_port();
+        if (cname != NULL)
+                *cname = '\0';
 
         snprintf(strport, sizeof strport, "%d", port);
         memset(&hints, 0, sizeof(hints));
@@ -477,7 +479,6 @@ resolve_canonicalize(char **hostp, int port)
         }
         /* Attempt each supplied suffix */
         for (i = 0; i < options.num_canonical_domains; i++) {
-                *newname = '\0';
                 xasprintf(&fullhost, "%s.%s.", *hostp,
                     options.canonical_domains[i]);
                 debug3("%s: attempting \"%s\" => \"%s\"", __func__,