Ipv6 support.

Changes to support Ipv6.

Change-Id: I0f1e991e79e7b1fe7f6f4890cef85049cb23b4c3
Signed-off-by: Ratan Gupta <ratagupt@in.ibm.com>
diff --git a/slp_server.cpp b/slp_server.cpp
index e307dab..29c3a2f 100644
--- a/slp_server.cpp
+++ b/slp_server.cpp
@@ -16,7 +16,7 @@
  */
 int slp::udp::Server::run()
 {
-    struct sockaddr_in in {};
+    struct sockaddr_in6 serverAddr {};
 
     sd_event* event = nullptr;
 
@@ -68,18 +68,17 @@
         goto finish;
     }
 
-    fd = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0);
+    fd = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0);
     if (fd < 0)
     {
         r = -errno;
         goto finish;
     }
 
-    in.sin_family = AF_INET;
-    in.sin_port = htons(this->port);
-    in.sin_addr.s_addr = INADDR_ANY;
+    serverAddr.sin6_family = AF_INET6;
+    serverAddr.sin6_port = htons(this->port);
 
-    if (bind(fd, (struct sockaddr*)&in, sizeof(in)) < 0)
+    if (bind(fd, (struct sockaddr*)&serverAddr, sizeof(serverAddr)) < 0)
     {
         r = -errno;
         goto finish;
diff --git a/sock_channel.cpp b/sock_channel.cpp
index ef86029..34adf3a 100644
--- a/sock_channel.cpp
+++ b/sock_channel.cpp
@@ -15,7 +15,7 @@
 std::string Channel::getRemoteAddress() const
 {
     char tmp[INET_ADDRSTRLEN] = { 0 };
-    inet_ntop(AF_INET, &address.inAddr.sin_addr, tmp, sizeof(tmp));
+    inet_ntop(AF_INET6, &address.inAddr.sin6_addr, tmp, sizeof(tmp));
     return std::string(tmp);
 }
 
@@ -154,3 +154,4 @@
 }
 
 } // namespace udpsocket
+
diff --git a/sock_channel.hpp b/sock_channel.hpp
index e992564..1bd047e 100644
--- a/sock_channel.hpp
+++ b/sock_channel.hpp
@@ -24,7 +24,7 @@
             union
             {
                 sockaddr sockAddr;
-                sockaddr_in inAddr;
+                sockaddr_in6 inAddr;
             };
             size_t addrSize;
         };
@@ -65,7 +65,7 @@
          */
         auto getPort() const
         {
-            return address.inAddr.sin_port;
+            return address.inAddr.sin6_port;
         }
 
         /**