From 856c5b62d4d16675b25ad7f9a20a916f4690b20c Mon Sep 17 00:00:00 2001
From: Michael Stapelberg <michael@stapelberg.de>
Date: Tue, 1 Jan 2019 17:17:02 +0100
Subject: [PATCH] dhcp: request domain name, too

---
 cmd/dhcp/dhcp.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/cmd/dhcp/dhcp.go b/cmd/dhcp/dhcp.go
index 08af84b..5628c41 100644
--- a/cmd/dhcp/dhcp.go
+++ b/cmd/dhcp/dhcp.go
@@ -61,7 +61,8 @@ func (c *client) discover() (*layers.DHCPv4, error) {
 		dhcp4.ParamsRequestOpt(
 			layers.DHCPOptDNS,
 			layers.DHCPOptRouter,
-			layers.DHCPOptSubnetMask),
+			layers.DHCPOptSubnetMask,
+			layers.DHCPOptDomainName),
 	})
 	if err := dhcp4.Write(c.conn, discover); err != nil {
 		return nil, err
@@ -97,7 +98,8 @@ func (c *client) request(last *layers.DHCPv4) (*layers.DHCPv4, error) {
 		dhcp4.ParamsRequestOpt(
 			layers.DHCPOptDNS,
 			layers.DHCPOptRouter,
-			layers.DHCPOptSubnetMask),
+			layers.DHCPOptSubnetMask,
+			layers.DHCPOptDomainName),
 	}, dhcp4.ServerID(last.Options)...))
 	if err := dhcp4.Write(c.conn, request); err != nil {
 		return nil, err