--- /dev/null
+/* Copyright (c) 2012 Apple Inc. All Rights Reserved. */
+
+#ifndef _SECURITY_AUTH_DEBUGGING_H_
+#define _SECURITY_AUTH_DEBUGGING_H_
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+enum {
+ AUTH_LOG_NORMAL,
+ AUTH_LOG_VERBOSE,
+ AUTH_LOG_ERROR
+};
+
+#define LOG(...) security_auth_log(AUTH_LOG_NORMAL, ##__VA_ARGS__)
+#define LOGV(...) security_auth_log(AUTH_LOG_VERBOSE, ##__VA_ARGS__)
+#define LOGE(...) security_auth_log(AUTH_LOG_ERROR, ##__VA_ARGS__)
+#if DEBUG
+#define LOGD(...) security_auth_log(AUTH_LOG_VERBOSE, ##__VA_ARGS__)
+#else
+#define LOGD(...)
+#endif
+
+void security_auth_log(int,const char *,...) __printflike(2, 3);
+
+#define CFReleaseSafe(CF) { CFTypeRef _cf = (CF); if (_cf) CFRelease(_cf); }
+#define CFReleaseNull(CF) { CFTypeRef _cf = (CF); \
+ if (_cf) { (CF) = NULL; CFRelease(_cf); } }
+#define CFRetainSafe(CF) { CFTypeRef _cf = (CF); if (_cf) CFRetain(_cf); }
+
+#define xpc_release_safe(obj) if (obj) { xpc_release(obj); obj = NULL; }
+#define free_safe(obj) if (obj) { free(obj); obj = NULL; }
+
+void _show_cf(CFTypeRef);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* !_SECURITY_AUTH_DEBUGGING_H_ */