1 files changed, 45 insertions, 0 deletions
diff --git a/ipc/glue/LibrarySandboxPreload.cpp b/ipc/glue/LibrarySandboxPreload.cpp
new file mode 100644
index 0000000000..0d7889d461
--- /dev/null
+++ b/ipc/glue/LibrarySandboxPreload.cpp
@@ -0,0 +1,45 @@
+/* -*- 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 "LibrarySandboxPreload.h"
+#include "nsXPCOMPrivate.h"  // for XPCOM_DLL
+
+#include "BinaryPath.h"
+#include "prlink.h"
+
+namespace mozilla {
+namespace ipc {
+
+PathString GetSandboxedRLBoxPath() {
+  nsCOMPtr<nsIFile> libFile;
+  nsresult rv = mozilla::BinaryPath::GetFile(getter_AddRefs(libFile));
+  if (NS_FAILED(rv)) {
+    MOZ_CRASH("Library preload failure: Failed to get binary file\n");
+  }
+
+  rv = libFile->SetNativeLeafName(XPCOM_DLL ""_ns);
+  if (NS_FAILED(rv)) {
+    MOZ_CRASH("Library preload failure: Failed to get library file\n");
+  }
+
+  return libFile->NativePath();
+}
+
+PRLibrary* PreloadLibrary(const PathString& path) {
+  PRLibSpec libSpec;
+#ifdef XP_WIN
+  libSpec.type = PR_LibSpec_PathnameU;
+  libSpec.value.pathname_u = path.get();
+#else
+  libSpec.type = PR_LibSpec_Pathname;
+  libSpec.value.pathname = path.get();
+#endif
+  PRLibrary* ret = PR_LoadLibraryWithFlags(libSpec, PR_LD_LAZY);
+  return ret;
+}
+
+}  // namespace ipc
+}  // namespace mozilla