feat(iOS): Detect Apple TV wired connection and retrieve the Wifi IP …

…address & subnet (#229 by @gcesarmza)
react-native-netinfo · Oct 6, 2019 · 2d2d167 · 2d2d167
1 parent bda8e03
commit 2d2d167
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Showing 3 changed files with 44 additions and 4 deletions.
diff --git a/ios/RNCConnectionState.h b/ios/RNCConnectionState.h
@@ -16,6 +16,7 @@ static NSString *const RNCConnectionTypeUnknown = @"unknown";
 static NSString *const RNCConnectionTypeNone = @"none";
 static NSString *const RNCConnectionTypeWifi = @"wifi";
 static NSString *const RNCConnectionTypeCellular = @"cellular";
+static NSString *const RNCConnectionTypeEthernet = @"ethernet";
 
 // Based on the EffectiveConnectionType enum described in the W3C Network Information API spec
 // (https://wicg.github.io/netinfo/).

diff --git a/ios/RNCConnectionState.m b/ios/RNCConnectionState.m
@@ -10,6 +10,10 @@
 #import <CoreTelephony/CTTelephonyNetworkInfo.h>
 #endif
 
+#if TARGET_OS_TV
+#include <ifaddrs.h>
+#endif
+
 @implementation RNCConnectionState
 
 // Creates a new "blank" state
@@ -64,6 +68,29 @@ - (instancetype)initWithReachabilityFlags:(SCNetworkReachabilityFlags)flags
 #endif
         else {
             _type = RNCConnectionTypeWifi;
+#if TARGET_OS_TV
+            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 ethernet connection on the Apple TV
+                        NSString* ifname = [NSString stringWithUTF8String:temp_addr->ifa_name];
+                        if ([ifname isEqualToString:@"en0"]) {
+                            _type = RNCConnectionTypeEthernet;
+                        }
+                    }
+                    temp_addr = temp_addr->ifa_next;
+                }
+            }
+            // Free memory
+            freeifaddrs(interfaces);
+#endif
         }
     }
     return self;

diff --git a/ios/RNCNetInfo.m b/ios/RNCNetInfo.m
@@ -144,8 +144,14 @@ - (NSString *)ipAddress
     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"]) {
+        NSString* ifname = [NSString stringWithUTF8String:temp_addr->ifa_name];
+        if (
+          // Check if interface is en0 which is the wifi connection on the iPhone
+          // and the ethernet connection on the Apple TV
+          [ifname isEqualToString:@"en0"] ||
+          // Check if interface is en1 which is the wifi connection on the Apple TV
+          [ifname isEqualToString:@"en1"]
+        ) {
           // Get NSString from C String
           address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];
         }
@@ -172,8 +178,14 @@ - (NSString *)subnet
     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"]) {
+        NSString* ifname = [NSString stringWithUTF8String:temp_addr->ifa_name];
+        if (
+          // Check if interface is en0 which is the wifi connection on the iPhone
+          // and the ethernet connection on the Apple TV
+          [ifname isEqualToString:@"en0"] ||
+          // Check if interface is en1 which is the wifi connection on the Apple TV
+          [ifname isEqualToString:@"en1"]
+        ) {
           // Get NSString from C String
           subnet = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_netmask)->sin_addr)];
         }