Guard potential unavailability of NSStreamNetworkServiceTypeCallSigna…

…ling.
facebookincubator · Aug 12, 2021 · 6f61b54 · 6f61b54
1 parent 5743b44
commit 6f61b54
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/SocketRocket/Internal/Utilities/SRURLUtilities.m b/SocketRocket/Internal/Utilities/SRURLUtilities.m
@@ -68,9 +68,11 @@ extern BOOL SRURLRequiresSSL(NSURL *url)
         case NSURLNetworkServiceTypeVoice:
             networkServiceType = NSStreamNetworkServiceTypeVoice;
             break;
-        case NSURLNetworkServiceTypeCallSignaling:
-            networkServiceType = NSStreamNetworkServiceTypeCallSignaling;
-            break;
+        case NSURLNetworkServiceTypeCallSignaling: {
+            if (@available(iOS 10.0, tvOS 10.0, macOS 10.12, *)) {
+                networkServiceType = NSStreamNetworkServiceTypeCallSignaling;
+            }
+        } break;
     }
     return networkServiceType;
 }