From 938bb66901d5b2d2ef101caf8508c166df025c5a Mon Sep 17 00:00:00 2001
From: highvolt-dev <highvoltage@gmail.com>
Date: Sat, 11 Feb 2023 16:59:16 -0500
Subject: [PATCH] explicitly pass -4 flag to ping command to try ipv4 with ping
 command except for OS X clients, fixes #77

---
 tmo_monitor/gateway/base.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tmo_monitor/gateway/base.py b/tmo_monitor/gateway/base.py
index 0374f5b..fed2cb4 100644
--- a/tmo_monitor/gateway/base.py
+++ b/tmo_monitor/gateway/base.py
@@ -10,6 +10,7 @@ class ControllerBase:
   # functions that don't touch the API
   def ping(self, ping_host, ping_count, ping_interval, interface = None, ping_6 = False):
     is_win = platform.system() == 'Windows'
+    is_mac = platform.system() == 'Darwin'
 
     ping_cmd = []
     extra_flags = []
@@ -21,6 +22,9 @@ def ping(self, ping_host, ping_count, ping_interval, interface = None, ping_6 =
         ping_bin = 'ping6'
       else:
         extra_flags.append('-6')
+    # Explicitly use -4 flag for IPv4 except for Mac OS X
+    elif not is_mac:
+      extra_flags.append('-4')
 
     # Add optional interface flag
     if interface: