Merge pull request #714 from martinayotte/esp8266

add toCharArray() to IPAddress class

cores/esp8266/IPAddress.cpp

@@ -64,3 +64,10 @@ size_t IPAddress::printTo(Print& p) const {
     return n;
 }
 
+String IPAddress::toString()
+{
+    char szRet[16];
+    sprintf(szRet,"%u.%u.%u.%u", _address.bytes[0], _address.bytes[1], _address.bytes[2], _address.bytes[3]);
+    return String(szRet);
+}
+

cores/esp8266/IPAddress.h

@@ -21,6 +21,7 @@
 #define IPAddress_h
 
 #include <stdint.h>
+#include <WString.h>
 #include <Printable.h>
 
 // A class to make it easier to handle and pass around IP addresses
@@ -70,6 +71,7 @@ class IPAddress: public Printable {
         IPAddress& operator=(uint32_t address);
 
         virtual size_t printTo(Print& p) const;
+        String toString();
 
         friend class EthernetClass;
         friend class UDP;

libraries/ESP8266WiFi/src/WiFiClient.cpp

@@ -177,6 +177,38 @@ size_t WiFiClient::write(const uint8_t *buf, size_t size)
     return _client->write(reinterpret_cast<const char*>(buf), size);
 }
 
+size_t WiFiClient::write_P(PGM_P buf, size_t size)
+{
+    if (!_client || !size)
+    {
+        return 0;
+    }
+
+    char chunkUnit[WIFICLIENT_MAX_PACKET_SIZE + 1];
+    chunkUnit[WIFICLIENT_MAX_PACKET_SIZE] = '\0';
+    while (buf != NULL) 
+    {
+        size_t chunkUnitLen;
+        PGM_P chunkNext;
+        chunkNext = (PGM_P)memccpy_P((void*)chunkUnit, (PGM_VOID_P)buf, 0, WIFICLIENT_MAX_PACKET_SIZE);
+        if (chunkNext == NULL) 
+        {
+            // no terminator, more data available
+            buf += WIFICLIENT_MAX_PACKET_SIZE;
+            chunkUnitLen = WIFICLIENT_MAX_PACKET_SIZE;
+        }
+        else 
+        {
+            // reached terminator
+            chunkUnitLen = chunkNext - buf;
+            buf = NULL;
+        }
+        if (size < WIFICLIENT_MAX_PACKET_SIZE) chunkUnitLen = size;
+        _client->write((const char*)chunkUnit, chunkUnitLen);
+    }
+    return size;
+}
+
 int WiFiClient::available()
 {
     if (!_client)

libraries/ESP8266WiFi/src/WiFiClient.h

@@ -28,6 +28,8 @@
 #include <memory>
 #include "include/slist.h"
 
+#define WIFICLIENT_MAX_PACKET_SIZE 1460
+
 class ClientContext;
 class WiFiServer;
 
@@ -46,6 +48,7 @@ public:
   virtual int connect(const char *host, uint16_t port);
   virtual size_t write(uint8_t);
   virtual size_t write(const uint8_t *buf, size_t size);
+  size_t write_P(PGM_P buf, size_t size);
   template <typename T>
   size_t write(T& source, size_t unitSize);
 
@@ -67,16 +70,16 @@ public:
   static void setLocalPortStart(uint16_t port) { _localPort = port; }
 
   template<typename T> size_t write(T &src){
-    uint8_t obuf[1460];
+    uint8_t obuf[WIFICLIENT_MAX_PACKET_SIZE];
     size_t doneLen = 0;
     size_t sentLen;
     int i;
     
-    while (src.available() > 1460){
-      src.read(obuf, 1460);
-      sentLen = write(obuf, 1460);
+    while (src.available() > WIFICLIENT_MAX_PACKET_SIZE){
+      src.read(obuf, WIFICLIENT_MAX_PACKET_SIZE);
+      sentLen = write(obuf, WIFICLIENT_MAX_PACKET_SIZE);
       doneLen = doneLen + sentLen;
-      if(sentLen != 1460){
+      if(sentLen != WIFICLIENT_MAX_PACKET_SIZE){
         return doneLen;
       }
     }