From 3a273172aebf1f0566e30cefab3454a7b498fa9b Mon Sep 17 00:00:00 2001
From: Darren 'Tadgy' Austin <darren@afterdark.org.uk>
Date: Mon, 30 Jul 2018 04:13:59 +0100
Subject: Add checks to enable -4 or -6 options to dhcpcd

This begins addressing concerns raised in af0a481ef072d220a58e

Signed-off-by: Robby Workman <rworkman@slackware.com>
---
 rc.inet1 | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/rc.inet1 b/rc.inet1
index 2de26df..5cb4d0c 100644
--- a/rc.inet1
+++ b/rc.inet1
@@ -175,6 +175,11 @@ if_up() {
         unset DHCP_OPTIONS
         declare -a DHCP_OPTIONS
         # Set DHCP_OPTIONS for this interface:
+        if [ "${USE_DHCP[$i]}" = "yes" ] && [ "${USE_DHCP6[$i]}" != "yes" ]; then # only try v4 dhcp
+          DHCP_OPTIONS+=("-4")
+        elif [ "${USE_DHCP[$i]}" != "yes" ] && [ "${USE_DHCP6[$i]}" = "yes" ]; then # only try v6 dhcp
+          DHCP_OPTIONS+=("-6")
+        fi
         [ -n "${DHCP_HOSTNAME[$i]}" ] && DHCP_OPTIONS+=("-h" "${DHCP_HOSTNAME[$i]}")
         [ "${DHCP_KEEPRESOLV[$i]}" = "yes" ] && DHCP_OPTIONS+=("-C" "resolv.conf")
         [ "${DHCP_KEEPNTP[$i]}" = "yes" ] && DHCP_OPTIONS+=("-C" "ntp.conf")
-- 
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