From feb56614db05f04269dff0376175bd22babe9399 Mon Sep 17 00:00:00 2001
From: SukkoPera <software@sukkology.net>
Date: Sat, 26 Mar 2016 13:53:39 +0100
Subject: [PATCH] Implemented gatwayIP() and subnetMask()

---
 src/WiFiEsp.cpp        | 15 +++++++++++++++
 src/utility/EspDrv.cpp | 26 ++++++++++++++++++++++++++
 src/utility/EspDrv.h   | 25 ++++++++++++++++++++-----
 3 files changed, 61 insertions(+), 5 deletions(-)

diff --git a/src/WiFiEsp.cpp b/src/WiFiEsp.cpp
index d5a1376..52b1957 100644
--- a/src/WiFiEsp.cpp
+++ b/src/WiFiEsp.cpp
@@ -114,6 +114,21 @@ IPAddress WiFiEspClass::localIP()
 	return ret;
 }
 
+IPAddress WiFiEspClass::subnetMask()
+{
+	IPAddress mask;
+	if(espMode==1)
+    EspDrv::getNetmask(mask);
+	return mask;
+}
+
+IPAddress WiFiEspClass::gatewayIP()
+{
+	IPAddress gw;
+	if(espMode==1)
+		EspDrv::getGateway(gw);
+	return gw;
+}
 
 
 char* WiFiEspClass::SSID()
diff --git a/src/utility/EspDrv.cpp b/src/utility/EspDrv.cpp
index f2b862d..eb84883 100644
--- a/src/utility/EspDrv.cpp
+++ b/src/utility/EspDrv.cpp
@@ -494,6 +494,32 @@ uint8_t EspDrv::getScanNetworks()
     return ssidListNum;
 }
 
+bool EspDrv::getNetmask(IPAddress& mask) {
+  LOGDEBUG(F("> getNetmask"));
+
+	char buf[20];
+	if (sendCmdGet(F("AT+CIPSTA?"), F("+CIPSTA:netmask:\""), F("\""), buf, sizeof(buf)))
+	{
+    mask.fromString (buf);
+    return true;
+	}
+
+  return false;
+}
+
+bool EspDrv::getGateway(IPAddress& gw) {
+  LOGDEBUG(F("> getGateway"));
+
+	char buf[20];
+	if (sendCmdGet(F("AT+CIPSTA?"), F("+CIPSTA:gateway:\""), F("\""), buf, sizeof(buf)))
+	{
+    gw.fromString (buf);
+    return true;
+	}
+
+  return false;
+}
+
 char* EspDrv::getSSIDNetoworks(uint8_t networkItem)
 {
 	if (networkItem >= WL_NETWORKS_LIST_MAXNUM)
diff --git a/src/utility/EspDrv.h b/src/utility/EspDrv.h
index f4e71d3..e2d68ab 100644
--- a/src/utility/EspDrv.h
+++ b/src/utility/EspDrv.h
@@ -178,6 +178,21 @@ class EspDrv
 
 	static void getIpAddressAP(IPAddress& ip);
 
+    /*
+     * Get the interface IP netmask.
+     * This can be used to retrieve settings configured through DHCP.
+     *
+     * return: true if successful
+     */
+    static bool getNetmask(IPAddress& mask);
+
+    /*
+     * Get the interface IP gateway.
+     * This can be used to retrieve settings configured through DHCP.
+     *
+     * return: true if successful
+     */
+    static bool getGateway(IPAddress& mask);
 
     /*
      * Return the current SSID associated with the network
@@ -235,8 +250,8 @@ class EspDrv
      * return: encryption type (enum wl_enc_type) of the specified item on the networks scanned list
      */
     static uint8_t getEncTypeNetowrks(uint8_t networkItem);
-	
-	
+
+
     /*
      * Get the firmware version
      */
@@ -275,10 +290,10 @@ class EspDrv
 
 	static long _bufPos;
 	static uint8_t _connId;
-	
+
 	static uint16_t _remotePort;
 	static uint8_t  _remoteIp[WL_IPV4_LENGTH];
-	
+
 
 	// firmware version string
 	static char 	fwVersion[WL_FW_VER_LENGTH];
@@ -287,7 +302,7 @@ class EspDrv
 	static char 	_networkSsid[WL_NETWORKS_LIST_MAXNUM][WL_SSID_MAX_LENGTH];
 	static int32_t 	_networkRssi[WL_NETWORKS_LIST_MAXNUM];
 	static uint8_t 	_networkEncr[WL_NETWORKS_LIST_MAXNUM];
-	
+
 
 	// settings of current selected network
 	static char 	_ssid[WL_SSID_MAX_LENGTH];