Fix crash with tunnel on iOS 16

include/bctoolbox/ios_utils.hh

@@ -19,7 +19,6 @@
 
 #pragma once
 
-#include <memory>
 #include <functional>
 
 namespace bctoolbox {
@@ -39,6 +38,7 @@ public:
     void endBackgroundTask(unsigned long id);
     bool isApplicationStateActive();
     bool isApp();
+    int getOSMajorVersion() const;
     static IOSUtils& getUtils();
     
     IOSUtils(const IOSUtils&) = delete;

src/CMakeLists.txt

@@ -139,7 +139,11 @@ if(ENABLE_SHARED)
 		)
 	endif()
 	if(APPLE)
-		target_link_libraries(bctoolbox PRIVATE "-framework Foundation" "-framework AVFoundation")
+		if (IOS)
+			target_link_libraries(bctoolbox PRIVATE "-framework UIKit" "-framework Foundation" "-framework AVFoundation")
+		else()
+			target_link_libraries(bctoolbox PRIVATE "-framework Foundation" "-framework AVFoundation")
+		endif()
 		target_include_directories(bctoolbox SYSTEM PRIVATE ${ICONV_INCLUDE_DIRS})
 		target_link_libraries(bctoolbox PRIVATE ${ICONV_LIBRARIES})
 	endif()

src/utils/ios_utils.mm

@@ -19,6 +19,8 @@
 
 #ifdef __APPLE__
 
+#include <TargetConditionals.h>
+
 #import <Foundation/Foundation.h>
 #include <dlfcn.h>
 
@@ -27,6 +29,11 @@
 #include "bctoolbox/logging.h"
 #include "ios_utils_stub.hh"
 
+#if TARGET_OS_IPHONE
+#import <UIKit/UIKit.h>
+#endif
+
+
 namespace bctoolbox {
 
 std::unique_ptr<IOSUtils> IOSUtils::sInstance = nullptr;
@@ -104,6 +111,16 @@ bool IOSUtils::isApplicationStateActive() {
     return mUtils->isApplicationStateActive();
 }
 
+int IOSUtils::getOSMajorVersion() const{
+#if TARGET_OS_IPHONE
+    NSArray *versionCompatibility = [[UIDevice currentDevice].systemVersion componentsSeparatedByString:@"."];
+	return [[versionCompatibility objectAtIndex:0] intValue];
+#else
+	bctbx_error("IOSUtils::getOSMajorVersion() not running on iOS");
+	return 0;
+#endif
+}
+
 
 unsigned long IOSUtilsStub::beginBackgroundTask(const char *name, std::function<void()> cb) {
     return 0;