From 8e5e48337a6cf7a33ecbee7cf9c594fa18bd93ae Mon Sep 17 00:00:00 2001
From: auth <blakejohnathan11@gmail.com>
Date: Fri, 17 Jul 2020 15:47:51 +0200
Subject: Refactoring.

---
 client/src/shellcode/shellcode.cpp | 31 +++++++++++++++++++++++++++++++
 client/src/shellcode/shellcode.h   | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 66 insertions(+)
 create mode 100644 client/src/shellcode/shellcode.cpp
 create mode 100644 client/src/shellcode/shellcode.h

(limited to 'client/src/shellcode')

diff --git a/client/src/shellcode/shellcode.cpp b/client/src/shellcode/shellcode.cpp
new file mode 100644
index 0000000..67cbabf
--- /dev/null
+++ b/client/src/shellcode/shellcode.cpp
@@ -0,0 +1,31 @@
+#include "../include.h"
+#include "shellcode.h"
+
+void sc::generator::start() {}
+
+void sc::generator::push(const std::vector<uintptr_t>& args) {
+  if (!m_x64) {
+    for (auto it = args.rbegin(); it != args.rend(); ++it) {
+      m_assembler.push(*it);
+    }
+    return;
+  }
+  
+  // 64bit impl
+}
+
+void sc::generator::call(const uintptr_t addr) {}
+
+void sc::generator::end() {
+  if (m_x64) {
+  }
+
+  void* func;
+  m_runtime.add(&func, &m_code);
+
+  const size_t size = m_code.codeSize();
+
+  m_buf.resize(size);
+
+  std::memcpy(&m_buf[0], func, size);
+}
\ No newline at end of file
diff --git a/client/src/shellcode/shellcode.h b/client/src/shellcode/shellcode.h
new file mode 100644
index 0000000..5f0e135
--- /dev/null
+++ b/client/src/shellcode/shellcode.h
@@ -0,0 +1,35 @@
+#pragma once
+
+#include <asmjit/src/asmjit/asmjit.h>
+
+using namespace asmjit;
+
+namespace sc {
+  
+class generator {
+  std::vector<uint8_t> m_buf;
+
+  CodeHolder m_code;
+  JitRuntime m_runtime;
+  x86::Assembler m_assembler;
+
+  bool m_x64;
+ public:
+  generator(const bool x64 = false) : m_x64{x64} {
+    Environment env(x64 ? Environment::kArchX64 : Environment::kArchX86);
+
+    m_code.init(env);
+    m_code.attach(&m_assembler);
+  }
+
+  void start();
+  void push(const std::vector<uintptr_t> &args);
+  void call(const uintptr_t addr);
+  void save_ret(const uintptr_t addr);
+  void end();
+
+  auto &operator()() const { return m_buf; }
+  auto &operator->() const { return m_assembler; }
+};
+
+};
\ No newline at end of file
-- 
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