1 files changed, 45 insertions, 0 deletions
diff --git a/network_cmds/rtadvd.tproj/rtadvd_logging.c b/network_cmds/rtadvd.tproj/rtadvd_logging.c
new file mode 100644
index 0000000..90dec08
--- /dev/null
+++ b/network_cmds/rtadvd.tproj/rtadvd_logging.c
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2019 Apple Inc. All rights reserved.
+ *
+ * This document is the property of Apple Inc.
+ * It is considered confidential and proprietary.
+ *
+ * This document may not be reproduced or transmitted in any form,
+ * in whole or in part, without the express written permission of
+ * Apple Inc.
+ */
+#include <assert.h>
+#include <os/log_private.h>
+
+#define kRtadvdLoggerID        "com.apple.rtadvd"
+static os_log_t rtadvdLogger = NULL;                        /* Handle for Logger */
+
+static boolean_t rtadvd_logger_create(void);
+
+static boolean_t
+rtadvd_logger_create(void)
+{
+    assert(rtadvdLogger == NULL);
+    rtadvdLogger = os_log_create(kRtadvdLoggerID, "daemon");
+
+    if (rtadvdLogger == NULL) {
+        os_log_error(OS_LOG_DEFAULT, "Couldn't create os log object");
+    }
+
+    return (rtadvdLogger != NULL);
+}
+
+void
+rtadvdLog(int level, const char *format, ...)
+{
+    va_list args;
+
+    if (rtadvdLogger == NULL && !rtadvd_logger_create()) {
+        return;
+    }
+
+    va_start(args, format);
+    os_log_with_args(rtadvdLogger, level, format, args, __builtin_return_address(0));
+    va_end(args);
+    return;
+}