From f6fde0c5ba526cbee2fbaef5530a81b9880f6c95 Mon Sep 17 00:00:00 2001
From: Martin Ayotte <martinayotte@yahoo.ca>
Date: Sun, 18 Oct 2015 14:18:14 -0400
Subject: [PATCH 1/2] add dnsIP() to ESP8266WiFi class

---
 .../esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.cpp      | 6 ++++++
 .../esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.h        | 7 +++++++
 2 files changed, 13 insertions(+)

diff --git a/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.cpp b/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.cpp
index f40014e550..10dae7094e 100644
--- a/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.cpp
+++ b/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.cpp
@@ -370,6 +370,12 @@ IPAddress ESP8266WiFiClass::gatewayIP()
     return IPAddress(ip.gw.addr);
 }
 
+IPAddress ESP8266WiFiClass::dnsIP()
+{
+    ip_addr_t dns_ip = dns_getserver(0);
+    return IPAddress(dns_ip.addr);
+}
+
 String ESP8266WiFiClass::SSID() const
 {
     static struct station_config conf;
diff --git a/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.h b/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.h
index 70538127f1..23ee644a45 100644
--- a/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.h
+++ b/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.h
@@ -168,6 +168,13 @@ class ESP8266WiFiClass
      */
    IPAddress gatewayIP();
 
+    /*
+     * Get the DNS ip address.
+     *
+     * return: DNS ip address value
+     */
+   IPAddress dnsIP();
+
     /*
      * Return the current SSID associated with the network
      *

From d7625438628aa32937895f6510f12e7144c01312 Mon Sep 17 00:00:00 2001
From: Martin Ayotte <martinayotte@yahoo.ca>
Date: Sun, 18 Oct 2015 14:22:24 -0400
Subject: [PATCH 2/2] add dns_no argument to dnsIP() int ESP8266WiFi class

---
 .../esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.cpp         | 4 ++--
 .../esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.h           | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.cpp b/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.cpp
index 10dae7094e..b3c5225796 100644
--- a/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.cpp
+++ b/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.cpp
@@ -370,9 +370,9 @@ IPAddress ESP8266WiFiClass::gatewayIP()
     return IPAddress(ip.gw.addr);
 }
 
-IPAddress ESP8266WiFiClass::dnsIP()
+IPAddress ESP8266WiFiClass::dnsIP(int dns_no)
 {
-    ip_addr_t dns_ip = dns_getserver(0);
+    ip_addr_t dns_ip = dns_getserver(dns_no);
     return IPAddress(dns_ip.addr);
 }
 
diff --git a/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.h b/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.h
index 23ee644a45..4fcc21f268 100644
--- a/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.h
+++ b/hardware/esp8266com/esp8266/libraries/ESP8266WiFi/src/ESP8266WiFi.h
@@ -173,7 +173,7 @@ class ESP8266WiFiClass
      *
      * return: DNS ip address value
      */
-   IPAddress dnsIP();
+   IPAddress dnsIP(int dns_no = 0);
 
     /*
      * Return the current SSID associated with the network