1 files changed, 30 insertions, 0 deletions
diff --git a/netwerk/system/LinkServiceCommon.cpp b/netwerk/system/LinkServiceCommon.cpp
new file mode 100644
index 0000000000..9c9ef986d7
--- /dev/null
+++ b/netwerk/system/LinkServiceCommon.cpp
@@ -0,0 +1,30 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "LinkServiceCommon.h"
+
+#include "mozilla/Maybe.h"
+#include "mozilla/SHA1.h"
+#include "mozilla/TimeStamp.h"
+#include "nsID.h"
+
+using namespace mozilla;
+
+void SeedNetworkId(SHA1Sum& aSha1) {
+  static Maybe<nsID> seed = ([]() {
+    Maybe<nsID> uuid(std::in_place);
+    if (NS_FAILED(nsID::GenerateUUIDInPlace(*uuid))) {
+      uuid.reset();
+    }
+    return uuid;
+  })();
+  if (seed) {
+    aSha1.update(seed.ptr(), sizeof(*seed));
+  } else {
+    TimeStamp timestamp = TimeStamp::ProcessCreation();
+    aSha1.update(&timestamp, sizeof(timestamp));
+  }
+}