upstream: don't attempt to connect to empty SSH_AUTH_SOCK; bz#293

OpenBSD-Commit-ID: 0e8fc8f19f14b21adef7109e0faa583d87c0e929
This commit is contained in:
djm@openbsd.org 2018-11-30 02:24:52 +00:00 committed by Damien Miller
parent 91b19198c3
commit 87d6cf1cbc

View File

@ -1,4 +1,4 @@
/* $OpenBSD: authfd.c,v 1.111 2018/07/09 21:59:10 markus Exp $ */
/* $OpenBSD: authfd.c,v 1.112 2018/11/30 02:24:52 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -94,7 +94,7 @@ ssh_get_authentication_socket(int *fdp)
*fdp = -1;
authsocket = getenv(SSH_AUTHSOCKET_ENV_NAME);
if (!authsocket)
if (authsocket == NULL || *authsocket == '\0')
return SSH_ERR_AGENT_NOT_PRESENT;
memset(&sunaddr, 0, sizeof(sunaddr));