From: Arjen de Korte <build+lede@de-korte.org>
Date: Mon, 5 Dec 2016 11:53:16 +0000 (+0100)
Subject: dnsmasq: Fix splitting hostid for DHCPv6 static leases
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=4fbd3aa278903bfc74341aafaeef86ff98e82e09;p=openwrt%2Fstaging%2Fjow.git

dnsmasq: Fix splitting hostid for DHCPv6 static leases

Correct splitting the 32-bit 'hostid' value to two 16-bit hexadecimal
values. Previously, the lower 16-bit value was truncated to an 8-bit
value, which would result in hostid values 100 and 200 both to be set
to [::0:0] instead of [::0:100] and [::0:200] respectively.

Signed-off-by: Arjen de Korte <build+lede@de-korte.org>
---

diff --git a/package/network/services/dnsmasq/files/dnsmasq.init b/package/network/services/dnsmasq/files/dnsmasq.init
index 845cf1b5e3..eebf5c76c8 100644
--- a/package/network/services/dnsmasq/files/dnsmasq.init
+++ b/package/network/services/dnsmasq/files/dnsmasq.init
@@ -35,7 +35,7 @@ hex_to_hostid() {
         export "$var=$(
                 printf "%0x:%0x"  \
                         $(((0x$hex >> 16) % 65536)) \
-                        $(( 0x$hex        % 256))
+                        $(( 0x$hex        % 65536))
         )"
 
         return 0