From de9b357ff71025135bed78224abad650af3b3d5e Mon Sep 17 00:00:00 2001
From: Pablo Curiel <pabloacurielz@gmail.com>
Date: Wed, 21 Jul 2021 07:57:41 -0400
Subject: [PATCH] nxlink: only connect to host if a valid remote address has
 been set.

---
 nx/source/runtime/nxlink.c       | 3 +--
 nx/source/runtime/nxlink_stdio.c | 4 ++++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/nx/source/runtime/nxlink.c b/nx/source/runtime/nxlink.c
index cb1e68ec..3ec3ded1 100644
--- a/nx/source/runtime/nxlink.c
+++ b/nx/source/runtime/nxlink.c
@@ -7,8 +7,7 @@
 extern int __system_argc;
 extern char** __system_argv;
 
-struct in_addr __nxlink_host;
-
+struct in_addr __nxlink_host = { .s_addr = INADDR_NONE };
 
 void nxlinkSetup(void)
 {
diff --git a/nx/source/runtime/nxlink_stdio.c b/nx/source/runtime/nxlink_stdio.c
index aedd4c5c..383ff456 100644
--- a/nx/source/runtime/nxlink_stdio.c
+++ b/nx/source/runtime/nxlink_stdio.c
@@ -11,6 +11,10 @@ static int sock = -1;
 
 int nxlinkConnectToHost(bool redirStdout, bool redirStderr)
 {
+    if ((!redirStdout && !redirStderr) || __nxlink_host.s_addr == INADDR_NONE) {
+        return -1;
+    }
+
     int ret = -1;
     struct sockaddr_in srv_addr;