From f3040b9ef97f6dc521a14fa7a12c4a8d9b953e21 Mon Sep 17 00:00:00 2001
From: Peter LaFosse <peter@vector35.com>
Date: Mon, 7 May 2018 16:03:13 -0400
Subject: Refactor supporting calling convention like approach

---
 relocationhandler.cpp | 114 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 relocationhandler.cpp

(limited to 'relocationhandler.cpp')

diff --git a/relocationhandler.cpp b/relocationhandler.cpp
new file mode 100644
index 00000000..2f0cbbde
--- /dev/null
+++ b/relocationhandler.cpp
@@ -0,0 +1,114 @@
+// Copyright (c) 2015-2017 Vector 35 LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+
+#include "binaryninjaapi.h"
+
+using namespace std;
+using namespace BinaryNinja;
+
+
+RelocationHandler::RelocationHandler(BNRelocationHandler* handler)
+{
+	m_object = handler;
+}
+
+
+RelocationHandler::RelocationHandler()
+{
+	BNCustomRelocationHandler handler;
+	handler.context = this;
+	handler.freeObject = FreeCallback;
+	handler.getRelocationInfo = GetRelocationInfoCallback;
+	handler.applyRelocation = ApplyRelocationCallback;
+
+	AddRefForRegistration();
+	m_object = BNCreateRelocationHandler(&handler);
+}
+
+
+void RelocationHandler::FreeCallback(void* ctxt)
+{
+	RelocationHandler* handler = (RelocationHandler*)ctxt;
+	handler->ReleaseForRegistration();
+}
+
+
+bool RelocationHandler::GetRelocationInfoCallback(void* ctxt, BNBinaryView* view, BNArchitecture* arch,
+	BNRelocationInfo* result, size_t resultCount)
+{
+	RelocationHandler* handler = (RelocationHandler*)ctxt;
+	Ref<BinaryView> viewObj = new BinaryView(BNNewViewReference(view));
+	Ref<Architecture> archObj = new CoreArchitecture(arch);
+	if (!result)
+		return false;
+	vector<BNRelocationInfo> resultVector(&result[0], &result[resultCount]);
+	bool success = handler->GetRelocationInfo(viewObj, archObj, resultVector);
+	for (size_t i = 0; i < resultCount; i++)
+		result[i] = resultVector[i];
+	return success;
+}
+
+
+bool RelocationHandler::ApplyRelocationCallback(void* ctxt, BNBinaryView* view, BNArchitecture* arch, BNRelocation* reloc,
+	uint8_t* dest, size_t len)
+{
+	RelocationHandler* handler = (RelocationHandler*)ctxt;
+	Ref<Architecture> archObj = new CoreArchitecture(arch);
+	Ref<BinaryView> viewObj = new BinaryView(BNNewViewReference(view));
+	Ref<Relocation> relocObj = new Relocation(BNNewRelocationReference(reloc));
+	return handler->ApplyRelocation(viewObj, archObj, relocObj, dest, len);
+}
+
+
+bool RelocationHandler::GetRelocationInfo(Ref<BinaryView> view, Ref<Architecture> arch, std::vector<BNRelocationInfo>& result)
+{
+	return false;
+}
+
+
+bool RelocationHandler::ApplyRelocation(Ref<BinaryView> view, Ref<Architecture> arch, Ref<Relocation> reloc, uint8_t* dest,
+	size_t len)
+{
+	return BNRelocationHandlerDefaultApplyRelocation(m_object, view->GetObject(), arch->GetObject(), BNNewRelocationReference(reloc->GetObject()), dest, len);
+}
+
+CoreRelocationHandler::CoreRelocationHandler(BNRelocationHandler* handler) : RelocationHandler(handler)
+{
+}
+
+
+bool CoreRelocationHandler::ApplyRelocation(Ref<BinaryView> view, Ref<Architecture> arch, Ref<Relocation> reloc, uint8_t* dest,
+	size_t len)
+{
+	return BNRelocationHandlerApplyRelocation(m_object, view->GetObject(), arch->GetObject(), BNNewRelocationReference(reloc->GetObject()), dest, len);
+}
+
+
+bool CoreRelocationHandler::GetRelocationInfo(Ref<BinaryView> view, Ref<Architecture> arch, std::vector<BNRelocationInfo>& result)
+{
+	BNRelocationInfo* results = new BNRelocationInfo[result.size()];
+	for (size_t i = 0; i < result.size(); i++)
+		results[i] = result[i];
+	bool status = BNRelocationHandlerGetRelocationInfo(m_object, view->GetObject(), arch->GetObject(), results,
+		result.size());
+	for (size_t i = 0; i < result.size(); i++)
+		result[i] = results[i];
+	return status;
+}
\ No newline at end of file
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