Kmod: support macOS

Author: CarterLi

src/util/kmod.c

@@ -31,6 +31,19 @@ bool ffKmodLoaded(const char* modName)
 {
     return modfind(modName) >= 0;
 }
+#elif __APPLE__
+#include "util/apple/cf_helpers.h"
+#include <IOKit/kext/KextManager.h>
+#include <CoreFoundation/CoreFoundation.h>
+
+bool ffKmodLoaded(const char* modName)
+{
+    FF_CFTYPE_AUTO_RELEASE CFStringRef name = CFStringCreateWithCString(kCFAllocatorDefault, modName, kCFStringEncodingUTF8);
+    FF_CFTYPE_AUTO_RELEASE CFArrayRef identifiers = CFArrayCreate(kCFAllocatorDefault, (const void**) &name, 1, &kCFTypeArrayCallBacks);
+    FF_CFTYPE_AUTO_RELEASE CFArrayRef keys = CFArrayCreate(kCFAllocatorDefault, NULL, 0, NULL);
+    FF_CFTYPE_AUTO_RELEASE CFDictionaryRef kextInfo = KextManagerCopyLoadedKextInfo(identifiers, keys);
+    return CFDictionaryContainsKey(kextInfo, name);
+}
 #else
 bool ffKmodLoaded(FF_MAYBE_UNUSED const char* modName)
 {