feat(ios): Add getIpAddress & getMacAddress

ios/RNDeviceInfo/RNDeviceInfo.m

@@ -6,6 +6,8 @@
 //  Copyright © 2015 Learnium Limited. All rights reserved.
 //
 
+#include <ifaddrs.h>
+#include <arpa/inet.h>
 #import "RNDeviceInfo.h"
 #import "DeviceUID.h"
 #if !(TARGET_OS_TV)
@@ -293,6 +295,42 @@ - (NSDictionary *)constantsToExport
              };
 }
 
+RCT_EXPORT_METHOD(getMacAddress:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
+{
+    NSString *address = @"02:00:00:00:00:00";
+    resolve(address);
+} 
+
+RCT_EXPORT_METHOD(getIpAddress:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
+{
+    NSString *address = @"0.0.0.0";
+    struct ifaddrs *interfaces = NULL;
+    struct ifaddrs *temp_addr = NULL;
+    int success = 0;
+    // retrieve the current interfaces - returns 0 on success
+    success = getifaddrs(&interfaces);
+    if (success == 0) {
+        // Loop through linked list of interfaces
+        temp_addr = interfaces;
+        while(temp_addr != NULL) {
+            if(temp_addr->ifa_addr->sa_family == AF_INET) {
+                // Check if interface is en0 which is the wifi connection on the iPhone
+                if([[NSString stringWithUTF8String:temp_addr->ifa_name] isEqualToString:@"en0"]) {
+                    // Get NSString from C String
+                    address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];
+
+                }
+
+            }
+
+            temp_addr = temp_addr->ifa_next;
+        }
+    }
+    // Free memory
+    freeifaddrs(interfaces);
+    resolve(address);
+} 
+
 RCT_EXPORT_METHOD(isPinOrFingerprintSet:(RCTResponseSenderBlock)callback)
 {
   #if TARGET_OS_TV