From 7709b1539364456173826e0f3acdc8e1c471f9c3 Mon Sep 17 00:00:00 2001
From: JINMEI Tatuya <jinmei@wide.ad.jp>
Date: Sat, 31 Oct 2015 19:01:02 +0900
Subject: [PATCH] [4027] added some explanatory comments for Pkt4o6::pack().

---
 src/lib/dhcp/pkt4o6.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/lib/dhcp/pkt4o6.cc b/src/lib/dhcp/pkt4o6.cc
index 7fb087a6e3..ca26cf98c1 100644
--- a/src/lib/dhcp/pkt4o6.cc
+++ b/src/lib/dhcp/pkt4o6.cc
@@ -48,10 +48,14 @@ Pkt4o6::Pkt4o6(const Pkt4Ptr& pkt4, const Pkt6Ptr& pkt6)
 }
 
 void Pkt4o6::pack() {
+    // Convert wire-format Pkt4 data in the form of OptionBuffer.
     Pkt4::pack();
     OutputBuffer& buf = getBuffer();
     const uint8_t* ptr = static_cast<const uint8_t*>(buf.getData());
     OptionBuffer msg(ptr, ptr + buf.getLength());
+
+    // Build the DHCPv4 Message option for the DHCPv6 message, and pack the
+    // entire stuff.
     OptionPtr dhcp4_msg(new Option(Option::V6, D6O_DHCPV4_MSG, msg));
     pkt6_->addOption(dhcp4_msg);
     pkt6_->pack();
-- 
2.47.2