Hoisted Doorstop files the rest of the way out of the submodule

This also adds some error tracking stuff to Doorstop
4 years ago · 5ad7e46eae
--- a/+ 0
+++ b/+ 0
@ -1 +0,0 @@
 Subproject commit f9a0d26bfb2a6f24abd3b438eb6b813a54e3ed4e
--- a/Doorstop/.gitignore
+++ b/Doorstop/.gitignore
@ -0,0 +1,325 @@
 ## Ignore Visual Studio temporary files, build results, and
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--- a/Doorstop/DoorstopTest/DoorstopTest.csproj
+++ b/Doorstop/DoorstopTest/DoorstopTest.csproj
@ -0,0 +1,58 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
  <PropertyGroup>
    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
    <ProjectGuid>{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}</ProjectGuid>
    <OutputType>Library</OutputType>
    <AppDesignerFolder>Properties</AppDesignerFolder>
    <RootNamespace>Doorstop</RootNamespace>
    <AssemblyName>Doorstop</AssemblyName>
    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
    <FileAlignment>512</FileAlignment>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
    <DebugSymbols>true</DebugSymbols>
    <DebugType>full</DebugType>
    <Optimize>false</Optimize>
    <OutputPath>bin\Debug\</OutputPath>
    <DefineConstants>DEBUG;TRACE</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
  </PropertyGroup>
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    <Optimize>true</Optimize>
    <OutputPath>bin\Release\</OutputPath>
    <DefineConstants>TRACE</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
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    <StartupObject />
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    <DefineConstants>DEBUG;TRACE</DefineConstants>
    <DebugType>full</DebugType>
    <PlatformTarget>AnyCPU</PlatformTarget>
    <ErrorReport>prompt</ErrorReport>
    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
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  <ItemGroup>
    <Compile Include="Loader.cs" />
    <Compile Include="Properties\AssemblyInfo.cs" />
  </ItemGroup>
  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>
--- a/Doorstop/DoorstopTest/Loader.cs
+++ b/Doorstop/DoorstopTest/Loader.cs
@ -0,0 +1,24 @@
 using System;
 using System.IO;

 namespace Doorstop
 {
    public static class Loader
    {
        public static void Main(string[] args)
        {
            using (TextWriter tw = File.CreateText("doorstop_is_alive.txt"))
            {
                tw.WriteLine($"Hello! This text file was generated by Doorstop on {DateTime.Now:R}!");
                tw.WriteLine($"I was called with {args.Length} params!");

                for (int i = 0; i < args.Length; i++)
                    tw.WriteLine($"{i} => {args[i]}");

                tw.WriteLine("Replace this DLL with a custom-made one to do whatever you want!");

                tw.Flush();
            }
        }
    }
 }
--- a/Doorstop/DoorstopTest/Properties/AssemblyInfo.cs
+++ b/Doorstop/DoorstopTest/Properties/AssemblyInfo.cs
@ -0,0 +1,36 @@
 using System.Reflection;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;

 // General Information about an assembly is controlled through the following
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyTitle("PatchLoader")]
 [assembly: AssemblyDescription("")]
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("")]
 [assembly: AssemblyProduct("PatchLoader")]
 [assembly: AssemblyCopyright("Copyright ©  2018")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]

 // Setting ComVisible to false makes the types in this assembly not visible
 // to COM components.  If you need to access a type in this assembly from
 // COM, set the ComVisible attribute to true on that type.
 [assembly: ComVisible(false)]

 // The following GUID is for the ID of the typelib if this project is exposed to COM
 [assembly: Guid("62b61ccc-0775-4cf4-b37a-eb5e33cbd08c")]

 // Version information for an assembly consists of the following four values:
 //
 //      Major Version
 //      Minor Version
 //      Build Number
 //      Revision
 //
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
 [assembly: AssemblyVersion("1.0.0.0")]
 [assembly: AssemblyFileVersion("1.0.0.0")]
--- a/Doorstop/LICENSE
+++ b/Doorstop/LICENSE
@ -0,0 +1,116 @@
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 <http://creativecommons.org/publicdomain/zero/1.0/>
--- a/Doorstop/Proxy/Proxy.vcxproj
+++ b/Doorstop/Proxy/Proxy.vcxproj
@ -0,0 +1,190 @@
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    <ClInclude Include="hook.h" />
    <ClInclude Include="mono.h" />
    <ClInclude Include="proxy.h" />
    <ClInclude Include="winapi_util.h" />
  </ItemGroup>
  <ItemGroup>
    <ResourceCompile Include="proxy.rc" />
  </ItemGroup>
  <ItemGroup>
    <None Include="proxy.def" />
  </ItemGroup>
  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
  <Target Name="AfterBuild">
    <Exec Command="$([System.IO.Path]::GetFullPath($([System.IO.Path]::Combine($(MSBuildProjectDirectory), '..', 'BuildUtils', 'ducible.exe')))) $(OutDir)$(MSBuildProjectName).dll $(OutDir)$(MSBuildProjectName).pdb" />
  </Target>
 </Project>
--- a/Doorstop/Proxy/Proxy.vcxproj.filters
+++ b/Doorstop/Proxy/Proxy.vcxproj.filters
@ -0,0 +1,61 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <ItemGroup>
    <Filter Include="Source Files">
      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
    </Filter>
    <Filter Include="Header Files">
      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
      <Extensions>h;hh;hpp;hxx;hm;inl;inc;xsd</Extensions>
    </Filter>
    <Filter Include="Resource Files">
      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
    </Filter>
    <Filter Include="Other">
      <UniqueIdentifier>{384fe73e-c79a-42c8-8d61-73dc2f7e7432}</UniqueIdentifier>
    </Filter>
  </ItemGroup>
  <ItemGroup>
    <ClCompile Include="main.c">
      <Filter>Source Files</Filter>
    </ClCompile>
    <ClCompile Include="proxy.c">
      <Filter>Source Files</Filter>
    </ClCompile>
  </ItemGroup>
  <ItemGroup>
    <ClInclude Include="mono.h">
      <Filter>Header Files</Filter>
    </ClInclude>
    <ClInclude Include="hook.h">
      <Filter>Header Files</Filter>
    </ClInclude>
    <ClInclude Include="assert_util.h">
      <Filter>Header Files</Filter>
    </ClInclude>
    <ClInclude Include="proxy.h">
      <Filter>Header Files</Filter>
    </ClInclude>
    <ClInclude Include="config.h">
      <Filter>Header Files</Filter>
    </ClInclude>
    <ClInclude Include="winapi_util.h">
      <Filter>Header Files</Filter>
    </ClInclude>
    <ClInclude Include="crt.h">
      <Filter>Header Files</Filter>
    </ClInclude>
  </ItemGroup>
  <ItemGroup>
    <ResourceCompile Include="proxy.rc">
      <Filter>Resource Files</Filter>
    </ResourceCompile>
  </ItemGroup>
  <ItemGroup>
    <None Include="proxy.def">
      <Filter>Other</Filter>
    </None>
  </ItemGroup>
 </Project>
--- a/Doorstop/Proxy/assert_util.h
+++ b/Doorstop/Proxy/assert_util.h
@ -0,0 +1,63 @@
 #pragma once


 #ifdef _VERBOSE

 #pragma comment(lib, "ucrt.lib")

 #include <windows.h>
 #include <stdio.h>

 static HANDLE log_handle;
 char buffer[8192];
 wchar_t bufferW[8192];

 inline void init_logger()
 {
 	log_handle = CreateFileA("doorstop.log", GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL,
 	                         NULL);
 }

 inline void free_logger()
 {
 	CloseHandle(log_handle);
 }

 #define LOG(message, ...)                                                                                                 \
 	{                                                                                                                     \
 		int len = _snprintf_s(buffer, sizeof(buffer)/sizeof(char), _TRUNCATE, message, __VA_ARGS__);    \
 		WriteFile(log_handle, buffer, len, NULL, NULL); \
 	}
 #else
 inline void init_logger()
 {
 }

 inline void free_logger()
 {
 }

 #define LOG(message, ...) 
 #endif

 #define ASSERT_F(test, message, ...)											        	                            \
 	if(!(test))																		                                    \
 	{																				                                    \
 		_snwprintf_s(bufferW, sizeof(bufferW)/sizeof(wchar_t), _TRUNCATE, message, __VA_ARGS__);	\
 		MessageBoxW(NULL, bufferW, L"Doorstop: Fatal", MB_OK | MB_ICONERROR);                                         	\
 		ExitProcess(EXIT_FAILURE);                                                                                      \
 	}

 // A helper for cleaner error logging
 #define ASSERT(test, message)                                                   \
 	if(!(test))                                                                 \
 	{                                                                           \
 		MessageBoxW(NULL, message, L"Doorstop: Fatal", MB_OK | MB_ICONERROR);   \
 		ExitProcess(EXIT_FAILURE);                                              \
 	}

 #define ASSERT_SOFT(test, ...)                   \
 	if(!(test))                                  \
 	{                                            \
 		return __VA_ARGS__;                      \
 	}
--- a/Doorstop/Proxy/config.h
+++ b/Doorstop/Proxy/config.h
@ -0,0 +1,137 @@
 #pragma once

 #pragma warning( disable : 4267 )

 #include <Windows.h>
 #include <shellapi.h>
 #include "winapi_util.h"
 #include "assert_util.h"
 #include "crt.h"

 #define CONFIG_NAME L"doorstop_config"
 #define DEFAULT_TARGET_ASSEMBLY L"Doorstop.dll"
 #define EXE_EXTENSION_LENGTH 4

 BOOL enabled = FALSE;
 BOOL debug = FALSE;
 BOOL debug_server = FALSE;
 BOOL debug_info = FALSE;
 wchar_t *targetAssembly = NULL;

 #define STR_EQUAL(str1, str2) (lstrcmpiW(str1, str2) == 0)

 inline void initConfigFile()
 {
 	enabled = TRUE;

 	WIN32_FIND_DATAW findData;
 	HANDLE findHandle = FindFirstFileW(L"*_Data", &findData);
 	if (findHandle == INVALID_HANDLE_VALUE)
 	{
 		MessageBoxW(NULL, L"Could not locate game being injected!", L"No files found in current directory matching '*_Data'", 
 			MB_OK | MB_ICONERROR | MB_SYSTEMMODAL | MB_TOPMOST | MB_SETFOREGROUND);

 		ExitProcess(GetLastError());
 	}

 	do
 	{
 		if (findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
 		{ // must be a directory
 			wchar_t* target = memalloc(MAX_PATH * sizeof(wchar_t));

 			const int EXIT_FAILURE = 1;
 			ASSERT(target != NULL, L"Address returned by memalloc was NULL!");

 			wmemset(target, 0, MAX_PATH);

 			wmemcpy(target, findData.cFileName, wcslen(findData.cFileName));
 			wmemcpy(target + wcslen(target), L"/Managed/IPA.Injector.dll", 26);

 			targetAssembly = target;
 			FindClose(findHandle);
 			break;
 		}
 	} 
 	while (FindNextFileW(findHandle, &findData) != 0);

 	if (targetAssembly == NULL)
 	{
 		MessageBoxW(NULL, L"Could not locate game being injected!", L"No valid directories matching '*_Data'",
 			MB_OK | MB_ICONERROR | MB_SYSTEMMODAL | MB_TOPMOST | MB_SETFOREGROUND);

 		ExitProcess(GetLastError());
 	}
 }

 inline void initCmdArgs()
 {
 	wchar_t *args = GetCommandLineW();
 	int argc = 0;
 	wchar_t **argv = CommandLineToArgvW(args, &argc);

 #define IS_ARGUMENT(arg_name) STR_EQUAL(arg, arg_name) && i < argc

 	for (int i = 0; i < argc; i++)
 	{
 		wchar_t *arg = argv[i];
 		/*if (IS_ARGUMENT(L"--doorstop-enable"))
 		{
 			wchar_t *par = argv[++i];

 			if (STR_EQUAL(par, L"true"))
 				enabled = TRUE;
 			else if (STR_EQUAL(par, L"false"))
 				enabled = FALSE;
 		}
 		else if (IS_ARGUMENT(L"--doorstop-target"))
 		{
 			if (targetAssembly != NULL)
 				memfree(targetAssembly);
 			const size_t len = wcslen(argv[i + 1]) + 1;
 			targetAssembly = memalloc(sizeof(wchar_t) * len);
 			lstrcpynW(targetAssembly, argv[++i], len);
 			LOG("Args; Target assembly: %S\n", targetAssembly);
 		}
 		else */if (IS_ARGUMENT(L"--mono-debug"))
 		{
 			debug = TRUE;
 			debug_info = TRUE;
 			LOG("Enabled debugging\n");
 		}
 		else if (IS_ARGUMENT(L"--debug"))
 		{
 			debug_info = TRUE;
 			LOG("Enabled loading of debug info\n");
 		}
 		else if (IS_ARGUMENT(L"--server"))
 		{
 			debug_server = TRUE;
 			LOG("Server-mode debugging enabled\n");
 		}
 	}

 	LocalFree(argv);
 }

 inline void initEnvVars()
 {
 	if (GetEnvironmentVariableW(L"DOORSTOP_DISABLE", NULL, 0) != 0)
 	{
 		LOG("DOORSTOP_DISABLE is set! Disabling Doorstop!\n");
 		enabled = FALSE;
 	}
 }

 inline void loadConfig()
 {
 	initConfigFile();
 	initCmdArgs();
 	initEnvVars();
 }

 inline void cleanupConfig()
 {
 	if (targetAssembly != NULL)
 		memfree(targetAssembly);
 }
--- a/Doorstop/Proxy/crt.h
+++ b/Doorstop/Proxy/crt.h
@ -0,0 +1,65 @@
 #pragma once

 #pragma warning( disable : 4028 28251 6001 )

 #include <debugapi.h>

 HANDLE hHeap;

 #define memalloc(size) HeapAlloc(hHeap, HEAP_GENERATE_EXCEPTIONS, size)
 #define memcalloc(size) HeapAlloc(hHeap, HEAP_ZERO_MEMORY, size)
 #define memfree(mem) HeapFree(hHeap, 0, mem)

 #define STR_LEN(str) (sizeof(str) / sizeof(str[0]))

 #define DEBUG_BREAK { if (IsDebuggerPresent()) { __debugbreak(); } }

 inline void *wmemcpy(wchar_t *dst, const wchar_t *src, size_t n)
 {
 	wchar_t *d = dst;
 	const wchar_t *s = src;
 	while (n--)
 		*d++ = *s++;
 	return dst;
 }

 inline void *wmemset(wchar_t *dst, wchar_t c, size_t n)
 {
 	wchar_t *d = dst;
 	while (n--)
 		*(d++) = c;
 	return dst;
 }

 void *memset(void *dst, char c, int n)
 {
 	char *d = dst;
 	while (n--)
 		*d = c;
 	return dst;
 }

 inline void *memcpy(void *dst, const void *src, int n)
 {
 	char *d = dst;
 	const char *s = src;
 	while (n--)
 		*d++ = *s++;
 	return dst;
 }

 inline size_t wcslen(wchar_t const *str)
 {
 	size_t result = 0;
 	while (*str++)
 		result++;
 	return result;
 }

 inline size_t strlen(char const *str)
 {
 	size_t result = 0;
 	while (*str++)
 		result++;
 	return result;
 }
--- a/Doorstop/Proxy/dll.def
+++ b/Doorstop/Proxy/dll.def
@ -0,0 +1,64 @@
 EXPORTS
 SvchostPushServiceGlobals
 WinHttpAddRequestHeaders
 WinHttpAutoProxySvcMain
 WinHttpCheckPlatform
 WinHttpCloseHandle
 WinHttpConnect
 WinHttpConnectionDeletePolicyEntries
 WinHttpConnectionDeleteProxyInfo
 WinHttpConnectionFreeNameList
 WinHttpConnectionFreeProxyInfo
 WinHttpConnectionFreeProxyList
 WinHttpConnectionGetNameList
 WinHttpConnectionGetProxyInfo
 WinHttpConnectionGetProxyList
 WinHttpConnectionSetPolicyEntries
 WinHttpConnectionSetProxyInfo
 WinHttpConnectionUpdateIfIndexTable
 WinHttpCrackUrl
 WinHttpCreateProxyResolver
 WinHttpCreateUrl
 WinHttpDetectAutoProxyConfigUrl
 WinHttpFreeProxyResult
 WinHttpFreeProxyResultEx
 WinHttpFreeProxySettings
 WinHttpGetDefaultProxyConfiguration
 WinHttpGetIEProxyConfigForCurrentUser
 WinHttpGetProxyForUrl
 WinHttpGetProxyForUrlEx
 WinHttpGetProxyForUrlEx2
 WinHttpGetProxyForUrlHvsi
 WinHttpGetProxyResult
 WinHttpGetProxyResultEx
 WinHttpGetProxySettingsVersion
 WinHttpGetTunnelSocket
 WinHttpOpen
 WinHttpOpenRequest
 WinHttpProbeConnectivity
 WinHttpQueryAuthSchemes
 WinHttpQueryDataAvailable
 WinHttpQueryHeaders
 WinHttpQueryOption
 WinHttpReadData
 WinHttpReadProxySettings
 WinHttpReadProxySettingsHvsi
 WinHttpReceiveResponse
 WinHttpResetAutoProxy
 WinHttpSaveProxyCredentials
 WinHttpSendRequest
 WinHttpSetCredentials
 WinHttpSetDefaultProxyConfiguration
 WinHttpSetOption
 WinHttpSetStatusCallback
 WinHttpSetTimeouts
 WinHttpTimeFromSystemTime
 WinHttpTimeToSystemTime
 WinHttpWebSocketClose
 WinHttpWebSocketCompleteUpgrade
 WinHttpWebSocketQueryCloseStatus
 WinHttpWebSocketReceive
 WinHttpWebSocketSend
 WinHttpWebSocketShutdown
 WinHttpWriteData
 WinHttpWriteProxySettings
--- a/Doorstop/Proxy/hook.h
+++ b/Doorstop/Proxy/hook.h
@ -0,0 +1,162 @@
 /*
 * EAT-based hooking for x86/x64.
 * 
 * Big thanks to ez (https://github.com/ezdiy/) for making this!
 * 
 * Creates "hooks" by modifying the module's export address table.
 * The procedure works in three main parts:
 * 
 * 1. Reading the module's PE file and getting all exported functions.
 * 2. Finding the right function to "hook" by simple address lookup
 * 3. Modify the entry to point to the hook.
 * 
 * The idea is based on the fact that the export table allows forwarding imports:
 * 
 * https://en.wikibooks.org/wiki/X86_Disassembly/Windows_Executable_Files#Forwarding
 * 
 * You can also find some reference material on the same page to understand this code better.
 * 
 */

 #pragma once

 #pragma warning( disable : 4267 90 )

 #include <windows.h>

 // PE format uses RVAs (Relative Virtual Addresses) to save addresses relative to the base of the module
 // More info: https://en.wikibooks.org/wiki/X86_Disassembly/Windows_Executable_Files#Relative_Virtual_Addressing_(RVA)
 //
 // This helper macro converts the saved RVA to a fully valid pointer to the data in the PE file
 #define RVA2PTR(t,base,rva) ((t)(((PCHAR) base) + rva))

 // A helper function to write into protected memory
 inline int vpmemcpy(void *dst, void *src, size_t sz)
 {
 	DWORD oldp;
 	// Make the memory page writeable
 	if (!VirtualProtect(dst, sz, PAGE_READWRITE, &oldp))
 		return 1;
 	memcpy(dst, src, sz);
 	// Restore the protection level
 	VirtualProtect(dst, sz, oldp, &oldp);
 	return 0;
 }


 /**
 * \brief Replaces the specified function entry in the EAT with a forward to a custom one, thus creating the "hook" effect.
 * \param hostDll The address of the module to hook.
 * \param originalFunction Address of the original function.
 * \param forwardFunctionEntry Name of the function to add a forward to. Must be of form `dll.API`.
 * \return TRUE, if hooking succeeded, otherwise, FALSE.
 */
 inline BOOL ezHook(HMODULE hostDll, void *originalFunction, char *forwardFunctionEntry)
 {
 	/*
 	 * Note that we are not doing any trampoline magic or editing the assembly!
 	 * 
 	 * Instead, we are reading the module's PE file, find the original function's entry in the export address table (EAT), 
 	 * and replace it with a forward import.
 	 * 
 	 * This ultimately will fool the game/executable to call our hook, while keeping original function intact.
 	 *
 	 * Thus, in order to work, the proxy DLL has to export the hook, because we are essentially
 	 * asking the game to call our hook without ever going to the original function (unlike with trampolines).
 	 */

 	size_t fwdlen = strlen(forwardFunctionEntry);

 	// The module always starts with a DOS (or "MZ") header
 	IMAGE_DOS_HEADER *mz = (PIMAGE_DOS_HEADER)hostDll;

 	// Next, get the NT headers. The offset to them is saved in e_lfanew
 	IMAGE_NT_HEADERS *nt = RVA2PTR(PIMAGE_NT_HEADERS, mz, mz->e_lfanew);

 	// Get the pointer to the data directory of the exports
 	IMAGE_DATA_DIRECTORY *edirp = &nt->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT];
 	IMAGE_DATA_DIRECTORY edir = *edirp;

 	// Finally, the virtual address in the data direcotry tells the location of the exports table
 	IMAGE_EXPORT_DIRECTORY *exports = RVA2PTR(PIMAGE_EXPORT_DIRECTORY, mz, edir.VirtualAddress);

 	// Read the addrress of the function list and the address of function names
 	DWORD *addrs = RVA2PTR(DWORD*, mz, exports->AddressOfFunctions);
 	//	DWORD* names = RVA2PTR(DWORD*, mz, exports->AddressOfNames);

 	// Iterate through all functions
 	for (unsigned i = 0; i < exports->NumberOfFunctions; i++)
 	{
 		//char* name = RVA2PTR(char*, mz, names[i]); // Name of the exported function
 		void *addr = RVA2PTR(void*, mz, addrs[i]); // Address of the exported function

 		// Check if we have the function we need to modify
 		if (addr == originalFunction)
 		{
 			DWORD fptr = edir.VirtualAddress + edir.Size;
 			int err = 0;

 			// Update the entry to go the the last entry (which we will populate in the next memcpy)
 			err |= vpmemcpy(&addrs[i], &fptr, sizeof(fptr));

 			// Add the forwarding import to our function at the end of the EAT
 			err |= vpmemcpy(((char*)exports + edir.Size), forwardFunctionEntry, fwdlen);

 			// Increment the size of the export data directory
 			// and write the new export data directory
 			edir.Size += fwdlen + 1;
 			err |= vpmemcpy(edirp, &edir, sizeof(edir));
 			return err == 0;
 		}
 	}
 	return FALSE;
 }


 /**
 * \brief Hooks the given function through the Import Address Table
 * \param dll Module to hook
 * \param targetFunction Address of the target function to hook
 * \param detourFunction Address of the detour function
 * \return TRUE if successful, otherwise FALSE
 */
 inline BOOL iat_hook(HMODULE dll, char const* targetDLL, void *targetFunction, void *detourFunction)
 {
 	IMAGE_DOS_HEADER *mz = (PIMAGE_DOS_HEADER)dll;

 	IMAGE_NT_HEADERS *nt = RVA2PTR(PIMAGE_NT_HEADERS, mz, mz->e_lfanew);

 	IMAGE_IMPORT_DESCRIPTOR *imports = RVA2PTR(PIMAGE_IMPORT_DESCRIPTOR, mz, nt->OptionalHeader.DataDirectory[
 		IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress);

 	for (int i = 0; imports[i].Characteristics; i++)
 	{
 		char *name = RVA2PTR(char*, mz, imports[i].Name);

 		if(lstrcmpiA(name, targetDLL) != 0)
 			continue;

 		void **thunk = RVA2PTR(void**, mz, imports[i].FirstThunk);
        void **nextThunk = RVA2PTR(void**, mz, imports[i+1].FirstThunk);

 		for (; thunk && thunk < nextThunk; thunk++)
 		{
 			void *import = *thunk;

 			if (import != targetFunction)
 				continue;

 			DWORD oldState;
 			if (!VirtualProtect(thunk, sizeof(void*), PAGE_READWRITE, &oldState))
 				return FALSE;

 			*thunk = (void*)detourFunction;

 			VirtualProtect(thunk, sizeof(void*), oldState, &oldState);

 			return TRUE;
 		}
 	}

 	return FALSE;
 }
--- a/Doorstop/Proxy/main.c
+++ b/Doorstop/Proxy/main.c
@ -0,0 +1,462 @@
 /*
 * main.cpp -- The main "entry point" and the main logic of the DLL.
 *
 * Here, we define and initialize struct Main that contains the main code of this DLL.
 * 
 * The main procedure goes as follows:
 * 1. The loader checks that PatchLoader.dll and mono.dll exist
 * 2. mono.dll is loaded into memory and some of its functions are looked up
 * 3. mono_jit_init_version is hooked with the help of MinHook
 * 
 * Then, the loader waits until Unity creates its root domain for mono (which is done with mono_jit_init_version).
 * 
 * Inside mono_jit_init_version hook:
 * 1. Call the original mono_jit_init_version to get the Unity root domain
 * 2. Load PatchLoader.dll into the root domain
 * 3. Find and invoke PatchLoader.Loader.Run()
 * 
 * Rest of the work is done on the managed side.
 *
 */

 #pragma warning( disable : 4267 100 152 6387 4456 6011 )

 #include "winapi_util.h"
 #include <Windows.h>

 #include "config.h"
 #include "mono.h"
 #include "hook.h"
 #include "assert_util.h"
 #include "proxy.h"
 #include <synchapi.h>

 #include <intrin.h>

 EXTERN_C IMAGE_DOS_HEADER __ImageBase; // This is provided by MSVC with the infomration about this DLL

 HANDLE unhandledMutex;
 void ownMonoJitParseOptions(int argc, char * argv[]);
 BOOL setOptions = FALSE;

 void unhandledException(void* exc, void* data) 
 {
    WaitForSingleObject(unhandledMutex, INFINITE);

    void* exception = NULL;
    void* mstr = mono_object_to_string(exc, &exception);

    if (exception != NULL)
    {
 #ifdef _VERBOSE
        void* monostr = mono_object_to_string(exception, &exception);
        if (exception != NULL)
        {
            DEBUG_BREAK;
            LOG("An error occurred while stringifying uncaught error, but the error could not be stringified.\n");
            ASSERT(FALSE, L"Uncaught exception; could not stringify");
        }
        else
        {
            char* str = mono_string_to_utf8(monostr);
            DEBUG_BREAK;
            LOG("An error occurred stringifying uncaught error: %s\n", str);

            size_t len = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0);
            wchar_t* wstr = memalloc(sizeof(wchar_t) * len);
            MultiByteToWideChar(CP_UTF8, 0, str, -1, wstr, len);

            ASSERT_F(FALSE, L"Uncaught exception; stringify failed: %s", wstr);

            memfree(wstr);
            mono_free(str);
        }
 #else
        ASSERT(FALSE, L"Could not stringify uncaught exception");
 #endif
    }

    char* str = mono_string_to_utf8(mstr);
    DEBUG_BREAK;
    LOG("Uncaught exception: %s\n", str);

    size_t len = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0);
    wchar_t* wstr = memalloc(sizeof(wchar_t) * len);
    MultiByteToWideChar(CP_UTF8, 0, str, -1, wstr, len);

 #ifdef _VERBOSE
    ASSERT(FALSE, L"Uncaught exception; see doorstop.log for details");
 #else
    ASSERT_F(FALSE, L"Uncaught exception: %s", wstr);
 #endif

    memfree(wstr);
    mono_free(str);

    ReleaseMutex(unhandledMutex);
 }

 // The hook for mono_jit_init_version
 // We use this since it will always be called once to initialize Mono's JIT
 void *ownMonoJitInitVersion(const char *root_domain_name, const char *runtime_version)
 {
 	// Call the original mono_jit_init_version to initialize the Unity Root Domain
 	if (debug) {
 		char* opts[1];
 		opts[0] = "";
 		ownMonoJitParseOptions(0, opts);
 	}
 #ifdef WIN32
    if (debug_info) {
        mono_debug_init(MONO_DEBUG_FORMAT_MONO);
    }
 #endif

 	void *domain = mono_jit_init_version(root_domain_name, runtime_version);

 	if (debug_info) {
 #ifdef WIN64
        mono_debug_init(MONO_DEBUG_FORMAT_MONO);
 #endif
 		mono_debug_domain_create(domain);
 	}

 	size_t len = WideCharToMultiByte(CP_UTF8, 0, targetAssembly, -1, NULL, 0, NULL, NULL);
 	char *dll_path = memalloc(sizeof(char) * len);
 	WideCharToMultiByte(CP_UTF8, 0, targetAssembly, -1, dll_path, len, NULL, NULL);

 	LOG("Loading assembly: %s\n", dll_path);
 	// Load our custom assembly into the domain
 	void *assembly = mono_domain_assembly_open(domain, dll_path);

 	if (assembly == NULL)
 	LOG("Failed to load assembly\n");

 	memfree(dll_path);
 	ASSERT_SOFT(assembly != NULL, domain);

 	// Get assembly's image that contains CIL code
 	void *image = mono_assembly_get_image(assembly);
 	ASSERT_SOFT(image != NULL, domain);

 	// Note: we use the runtime_invoke route since jit_exec will not work on DLLs

 	// Create a descriptor for a random Main method
 	void *desc = mono_method_desc_new("*:Main", FALSE);

 	// Find the first possible Main method in the assembly
 	void *method = mono_method_desc_search_in_image(desc, image);
 	ASSERT_SOFT(method != NULL, domain);

 	void *signature = mono_method_signature(method);

 	// Get the number of parameters in the signature
 	UINT32 params = mono_signature_get_param_count(signature);

 	void **args = NULL;
 	wchar_t *app_path = NULL;
 	if (params == 1)
 	{
 		// If there is a parameter, it's most likely a string[].
 		// Populate it as follows
 		// 0 => path to the game's executable
 		// 1 => --doorstop-invoke

 		get_module_path(NULL, &app_path, NULL, 0);

 		void *exe_path = MONO_STRING(app_path);
 		void *doorstop_handle = MONO_STRING(L"--doorstop-invoke");

 		void *args_array = mono_array_new(domain, mono_get_string_class(), 2);

 		SET_ARRAY_REF(args_array, 0, exe_path);
 		SET_ARRAY_REF(args_array, 1, doorstop_handle);

 		args = memalloc(sizeof(void*) * 1);
 		_ASSERTE(args != nullptr);
 		args[0] = args_array;
 	}

    LOG("Installing uncaught exception handler\n");

    mono_install_unhandled_exception_hook(unhandledException, NULL);

    unhandledMutex = CreateMutexW(NULL, FALSE, NULL);

 	LOG("Invoking method!\n");

    void* exception = NULL;
 	mono_runtime_invoke(method, NULL, args, &exception);

    WaitForSingleObject(unhandledMutex, INFINITE); // if the EH is triggered, wait for it

 	if (args != NULL)
 	{
 		memfree(app_path);
 		memfree(args);
 		NULL;
 	}

 #ifdef _VERBOSE
    if (exception != NULL)
    {
        void* monostr = mono_object_to_string(exception, &exception);
        if (exception != NULL)
            LOG("An error occurred while invoking the injector, but the error could not be stringified.\n")
        else 
        {
            char* str = mono_string_to_utf8(monostr);
            LOG("An error occurred invoking the injector: %s\n", str);
            mono_free(str);
        }
    }
 #endif

 	cleanupConfig();

 	free_logger();

    ReleaseMutex(unhandledMutex);

 	return domain;
 }

 void ownMonoJitParseOptions(int argc, char * argv[])
 {
 	setOptions = TRUE;

 	int size = argc;
 #ifdef WIN64
 	if (debug) size += 2;
 #elif defined(WIN32)
    if (debug) size += 1;
 #endif

 	char** arguments = memalloc(sizeof(char*) * size);
 	_ASSERTE(arguments != nullptr);
 	memcpy(arguments, argv, sizeof(char*) * argc);
 	if (debug) {
 		//arguments[argc++] = "--debug";
 #ifdef WIN64
        arguments[argc++] = "--soft-breakpoints";
 #endif
 		if (debug_server)
 			arguments[argc] = "--debugger-agent=transport=dt_socket,address=0.0.0.0:10000,server=y";
 		else
 			arguments[argc] = "--debugger-agent=transport=dt_socket,address=127.0.0.1:10000,server=n";
 	}

 	mono_jit_parse_options(size, arguments);

 	memfree(arguments);
 }

 BOOL initialized = FALSE;

 void init(HMODULE module)
 {
 	if (!initialized)
 	{
 		initialized = TRUE;
 		LOG("Got mono.dll at %p\n", module);
 		loadMonoFunctions(module);
 	}
 }

 void * WINAPI hookGetProcAddress(HMODULE module, char const *name)
 {
 	if (lstrcmpA(name, "mono_jit_init_version") == 0)
 	{
 		init(module);
 		return (void*)&ownMonoJitInitVersion;
 	}
 	if (lstrcmpA(name, "mono_jit_parse_options") == 0 && debug)
 	{
 		init(module);
 		return (void*)&ownMonoJitParseOptions;
 	}
 	return (void*)GetProcAddress(module, name);
 }

 BOOL hookGetMessage(
    BOOL isW,
    LPMSG msg,
    HWND hwnd,
    UINT wMsgFilterMin,
    UINT wMsgFilterMax
 );

 BOOL WINAPI hookGetMessageA(LPMSG msg, HWND hwnd, UINT wMsgFilterMin, UINT wMsgFilterMax)
 {
    return hookGetMessage(FALSE, msg, hwnd, wMsgFilterMin, wMsgFilterMax);
 }
 BOOL WINAPI hookGetMessageW(LPMSG msg, HWND hwnd, UINT wMsgFilterMin, UINT wMsgFilterMax)
 {
    return hookGetMessage(TRUE, msg, hwnd, wMsgFilterMin, wMsgFilterMax);
 }

 typedef BOOL(*GetMessageHook)(BOOL isW, BOOL result, LPMSG msg, HWND hwnd, UINT filterMin, UINT filterMax);

 GetMessageHook getMessageHook = NULL;

 __declspec(dllexport) void __stdcall SetGetMessageHook(GetMessageHook hook) {
    getMessageHook = hook;
 }

 BOOL hookGetMessage(
    BOOL isW,
    LPMSG msg,
    HWND hwnd,
    UINT wMsgFilterMin,
    UINT wMsgFilterMax
 )
 {
    BOOL loop = FALSE;

    BOOL result;

    do {
        if (isW) {
            result = GetMessageW(msg, hwnd, wMsgFilterMin, wMsgFilterMax);
        } else {
            result = GetMessageA(msg, hwnd, wMsgFilterMin, wMsgFilterMax);
        }

        if (getMessageHook) {
            loop = getMessageHook(isW, result, msg, hwnd, wMsgFilterMin, wMsgFilterMax);
        }
    } while (loop);

    return result;
 }

 BOOL hookPeekMessage(
    BOOL isW,
    LPMSG msg,
    HWND hwnd,
    UINT wMsgFilterMin,
    UINT wMsgFilterMax,
    UINT wRemoveMsg
 );

 BOOL WINAPI hookPeekMessageA(LPMSG msg, HWND hwnd, UINT wMsgFilterMin, UINT wMsgFilterMax, UINT wRemoveMsg)
 {
    return hookPeekMessage(FALSE, msg, hwnd, wMsgFilterMin, wMsgFilterMax, wRemoveMsg);
 }
 BOOL WINAPI hookPeekMessageW(LPMSG msg, HWND hwnd, UINT wMsgFilterMin, UINT wMsgFilterMax, UINT wRemoveMsg)
 {
    return hookPeekMessage(TRUE, msg, hwnd, wMsgFilterMin, wMsgFilterMax, wRemoveMsg);
 }

 typedef BOOL(*PeekMessageHook)(BOOL isW, BOOL result, LPMSG msg, HWND hwnd, UINT filterMin, UINT filterMax, UINT* wRemoveMsg);

 PeekMessageHook peekMessageHook = NULL;

 __declspec(dllexport) void __stdcall SetPeekMessageHook(PeekMessageHook hook) {
    peekMessageHook = hook;
 }

 BOOL hookPeekMessage(
    BOOL isW,
    LPMSG msg,
    HWND hwnd,
    UINT wMsgFilterMin,
    UINT wMsgFilterMax,
    UINT wRemoveMsg
 )
 {
    BOOL loop = FALSE;

    BOOL result;

    do {
        if (isW) {
            result = PeekMessageW(msg, hwnd, wMsgFilterMin, wMsgFilterMax, wRemoveMsg);
        }
        else {
            result = PeekMessageA(msg, hwnd, wMsgFilterMin, wMsgFilterMax, wRemoveMsg);
        }

        if (peekMessageHook) {
            loop = peekMessageHook(isW, result, msg, hwnd, wMsgFilterMin, wMsgFilterMax, &wRemoveMsg);
        }
    } while (loop);

    return result;
 }

 BOOL WINAPI DllMain(HINSTANCE hInstDll, DWORD reasonForDllLoad, LPVOID reserved)
 {
 	if (reasonForDllLoad != DLL_PROCESS_ATTACH)
 		return TRUE;

 	hHeap = GetProcessHeap();

 	init_logger();

 	LOG("Doorstop started!\n");

 	wchar_t *dll_path = NULL;
 	size_t dll_path_len = get_module_path((HINSTANCE)&__ImageBase, &dll_path, NULL, 0);

 	LOG("DLL Path: %S\n", dll_path);

 	wchar_t *dll_name = get_file_name_no_ext(dll_path, dll_path_len);

 	LOG("Doorstop DLL Name: %S\n", dll_name);

 	loadProxy(dll_name);
 	loadConfig();

 	// If the loader is disabled, don't inject anything.
 	if (enabled)
 	{
 		LOG("Doorstop enabled!\n");
 		ASSERT_SOFT(GetFileAttributesW(targetAssembly) != INVALID_FILE_ATTRIBUTES, TRUE);

 		HMODULE targetModule = GetModuleHandleA("UnityPlayer");

 		if(targetModule == NULL)
 		{
 			LOG("No UnityPlayer.dll; using EXE as the hook target.");
 			targetModule = GetModuleHandleA(NULL);
 		}

 		LOG("Installing IAT hook\n");
 		if (!iat_hook(targetModule, "kernel32.dll", &GetProcAddress, &hookGetProcAddress))
 		{
 			LOG("Failed to install IAT hook!\n");
 			free_logger();
 		}

 		LOG("Hook installed!\n");

        LOG("Attempting to install GetMessageA and GetMessageW hooks\n");

        if (!iat_hook(targetModule, "user32.dll", &GetMessageA, &hookGetMessageA)) {
            LOG("Could not hook GetMessageA! (not an error)\n");
        }
        if (!iat_hook(targetModule, "user32.dll", &GetMessageW, &hookGetMessageW)) {
            LOG("Could not hook GetMessageW! (not an error)\n");
        }

        LOG("Attempting to install PeekMessageA and PeekMessageW hooks\n");

        if (!iat_hook(targetModule, "user32.dll", &PeekMessageA, &hookPeekMessageA)) {
            LOG("Could not hook PeekMessageA! (not an error)\n");
        }
        if (!iat_hook(targetModule, "user32.dll", &PeekMessageW, &hookPeekMessageW)) {
            LOG("Could not hook PeekMessageW! (not an error)\n");
        }
 	}
 	else
 	{
 		LOG("Doorstop disabled! memfreeing resources\n");
 		free_logger();
 	}

 	memfree(dll_name);
 	memfree(dll_path);

 	return TRUE;
 }
--- a/Doorstop/Proxy/mono.h
+++ b/Doorstop/Proxy/mono.h
@ -0,0 +1,105 @@
 /*
 * mono.h -- Definitions for Mono C API functions.
 * 
 * The file contains definitions for some of functions provided by Mono C API.
 * 
 * Note: Since we don't use any mono headers, all pointers to mono-related structs are
 * replaced with void *.
 */

 #pragma once

 #pragma warning( disable : 4152 )

 #include <windows.h>

 // Creates a MonoString based from a C wide string
 #define MONO_STRING(str) mono_string_new_utf16(domain, str, wcslen(str))

 // Set MonoArray's index to a reference type value (i.e. string)
 #define SET_ARRAY_REF(arr, index, refVal) \
 	{ \
 		void **p = (void**) mono_array_addr_with_size(arr, sizeof(void*), index); \
 		mono_gc_wbarrier_set_arrayref(arr, p, refVal); \
 	}

 // Here we define the pointers to some functions within mono.dll
 // Note to C learners: these are not signature definitions, but rather "variable"
 // definitions with the function pointer type.

 // Note: we use void* instead of the real intented structs defined in mono API
 // This way we don't need to include or define any of Mono's structs, which saves space
 // This, obviously, comes with a drawback of not being able to easily access the contents of the structs

 typedef enum {
 	MONO_DEBUG_FORMAT_NONE,
 	MONO_DEBUG_FORMAT_MONO,
 	/* Deprecated, the mdb debugger is not longer supported. */
 	MONO_DEBUG_FORMAT_DEBUGGER
 } MonoDebugFormat;

 void (*mono_jit_parse_options)(int argc, char * argv[]);
 void (*mono_debug_init)(MonoDebugFormat format);
 void(*mono_debug_domain_create)(void*);

 void *(*mono_jit_init_version)(const char *root_domain_name, const char *runtime_version);
 void *(*mono_domain_assembly_open)(void *domain, const char *name);
 void *(*mono_assembly_get_image)(void *assembly);
 void *(*mono_runtime_invoke)(void *method, void *obj, void **params, void **exc);

 void *(*mono_method_desc_new)(const char *name, int include_namespace);
 void *(*mono_method_desc_search_in_image)(void *desc, void *image);
 void *(*mono_method_signature)(void *method);
 UINT32 (*mono_signature_get_param_count)(void *sig);

 void *(*mono_array_new)(void *domain, void *eclass, uintptr_t n);
 void (*mono_gc_wbarrier_set_arrayref)(void *arr, void *slot_ptr, void *value);
 char *(*mono_array_addr_with_size)(void *arr, int size, uintptr_t idx);

 void *(*mono_get_string_class)();
 void *(*mono_string_new_utf16)(void *domain, const wchar_t *text, INT32 len);

 void* (*mono_object_to_string)(void* obj, void** exc);

 char* (*mono_string_to_utf8)(void* str);
 void (*mono_free)(void*);

 /* Installs a function which is called when the runtime encounters an unhandled exception.
 * This hook isn't expected to return.
 * If no hook has been installed, the runtime will print a message before aborting.
 */
 typedef void (*MonoUnhandledExceptionFunc)(void* exc, void* user_data);
 void (*mono_install_unhandled_exception_hook)(MonoUnhandledExceptionFunc func, void* user_data);

 /**
 * \brief Loads Mono C API function pointers so that the above definitions can be called.
 * \param monoLib Mono.dll module.
 */
 inline void loadMonoFunctions(HMODULE monoLib)
 {
 	// Enjoy the fact that C allows such sloppy casting
 	// In C++ you would have to cast to the precise function pointer type
 #define GET_MONO_PROC(name) name = (void*)GetProcAddress(monoLib, #name)
 	
 	// Find and assign all our functions that we are going to use
 	GET_MONO_PROC(mono_debug_domain_create);
 	GET_MONO_PROC(mono_domain_assembly_open);
 	GET_MONO_PROC(mono_assembly_get_image);
 	GET_MONO_PROC(mono_runtime_invoke);
 	GET_MONO_PROC(mono_debug_init);
 	GET_MONO_PROC(mono_jit_init_version);
 	GET_MONO_PROC(mono_jit_parse_options);
 	GET_MONO_PROC(mono_method_desc_new);
 	GET_MONO_PROC(mono_method_desc_search_in_image);
 	GET_MONO_PROC(mono_method_signature);
 	GET_MONO_PROC(mono_signature_get_param_count);
 	GET_MONO_PROC(mono_array_new);
 	GET_MONO_PROC(mono_get_string_class);
 	GET_MONO_PROC(mono_string_new_utf16);
 	GET_MONO_PROC(mono_gc_wbarrier_set_arrayref);
 	GET_MONO_PROC(mono_array_addr_with_size);
    GET_MONO_PROC(mono_object_to_string);
    GET_MONO_PROC(mono_string_to_utf8);
    GET_MONO_PROC(mono_free);
    GET_MONO_PROC(mono_install_unhandled_exception_hook);
 }
--- a/Doorstop/Proxy/proxy.c
+++ b/Doorstop/Proxy/proxy.c
@ -0,0 +1,133 @@
 /* ==================================
 * COMPUTER GENERATED -- DO NOT EDIT
 * ==================================
 * 
 * This file contains the definitions for all proxy functions this DLL supports.
 * 
 * The proxies are very simple functions that should be optimizied into a 
 * single JMP instruction without editing the stack at all.
 * 
 * NOTE: While this works, this is a somewhat hackish approach that is based on how 
 * the compiler optimizes the code. That said, the proxy will not work on Debug build currently
 * (that can be fixed by changing the appropriate compile flag that I am yet to locate).
 */

 #pragma warning( disable : 4244 )
 
 #include <windows.h>

 #define ADD_ORIGINAL(i, name) originalFunctions[i] = GetProcAddress(dll, #name)

 #define PROXY(i, name) \
 	__declspec(dllexport) ULONG __stdcall name() \
 	{ \
 		return originalFunctions[i](); \
 	}

 FARPROC originalFunctions[50] = {0};

 void loadFunctions(HMODULE dll)
 {
 ADD_ORIGINAL(0, WinHttpAddRequestHeaders);
 ADD_ORIGINAL(1, WinHttpAutoProxySvcMain);
 ADD_ORIGINAL(2, WinHttpCheckPlatform);
 ADD_ORIGINAL(3, WinHttpCloseHandle);
 ADD_ORIGINAL(4, WinHttpConnect);
 ADD_ORIGINAL(5, WinHttpConnectionDeleteProxyInfo);
 ADD_ORIGINAL(6, WinHttpConnectionFreeNameList);
 ADD_ORIGINAL(7, WinHttpConnectionFreeProxyInfo);
 ADD_ORIGINAL(8, WinHttpConnectionFreeProxyList);
 ADD_ORIGINAL(9, WinHttpConnectionGetNameList);
 ADD_ORIGINAL(10, WinHttpConnectionGetProxyInfo);
 ADD_ORIGINAL(11, WinHttpConnectionGetProxyList);
 ADD_ORIGINAL(12, WinHttpConnectionSetProxyInfo);
 ADD_ORIGINAL(13, WinHttpCrackUrl);
 ADD_ORIGINAL(14, WinHttpCreateProxyResolver);
 ADD_ORIGINAL(15, WinHttpCreateUrl);
 ADD_ORIGINAL(16, WinHttpDetectAutoProxyConfigUrl);
 ADD_ORIGINAL(17, WinHttpFreeProxyResult);
 ADD_ORIGINAL(18, WinHttpGetDefaultProxyConfiguration);
 ADD_ORIGINAL(19, WinHttpGetIEProxyConfigForCurrentUser);
 ADD_ORIGINAL(20, WinHttpGetProxyForUrl);
 ADD_ORIGINAL(21, WinHttpGetProxyForUrlEx);
 ADD_ORIGINAL(22, WinHttpGetProxyResult);
 ADD_ORIGINAL(23, WinHttpGetTunnelSocket);
 ADD_ORIGINAL(24, WinHttpOpen);
 ADD_ORIGINAL(25, WinHttpOpenRequest);
 ADD_ORIGINAL(26, WinHttpProbeConnectivity);
 ADD_ORIGINAL(27, WinHttpQueryAuthSchemes);
 ADD_ORIGINAL(28, WinHttpQueryDataAvailable);
 ADD_ORIGINAL(29, WinHttpQueryHeaders);
 ADD_ORIGINAL(30, WinHttpQueryOption);
 ADD_ORIGINAL(31, WinHttpReadData);
 ADD_ORIGINAL(32, WinHttpReceiveResponse);
 ADD_ORIGINAL(33, WinHttpResetAutoProxy);
 ADD_ORIGINAL(34, WinHttpSaveProxyCredentials);
 ADD_ORIGINAL(35, WinHttpSendRequest);
 ADD_ORIGINAL(36, WinHttpSetCredentials);
 ADD_ORIGINAL(37, WinHttpSetDefaultProxyConfiguration);
 ADD_ORIGINAL(38, WinHttpSetOption);
 ADD_ORIGINAL(39, WinHttpSetStatusCallback);
 ADD_ORIGINAL(40, WinHttpSetTimeouts);
 ADD_ORIGINAL(41, WinHttpTimeFromSystemTime);
 ADD_ORIGINAL(42, WinHttpTimeToSystemTime);
 ADD_ORIGINAL(43, WinHttpWebSocketClose);
 ADD_ORIGINAL(44, WinHttpWebSocketCompleteUpgrade);
 ADD_ORIGINAL(45, WinHttpWebSocketQueryCloseStatus);
 ADD_ORIGINAL(46, WinHttpWebSocketReceive);
 ADD_ORIGINAL(47, WinHttpWebSocketSend);
 ADD_ORIGINAL(48, WinHttpWebSocketShutdown);
 ADD_ORIGINAL(49, WinHttpWriteData);

 }

 PROXY(0, WinHttpAddRequestHeaders);
 PROXY(1, WinHttpAutoProxySvcMain);
 PROXY(2, WinHttpCheckPlatform);
 PROXY(3, WinHttpCloseHandle);
 PROXY(4, WinHttpConnect);
 PROXY(5, WinHttpConnectionDeleteProxyInfo);
 PROXY(6, WinHttpConnectionFreeNameList);
 PROXY(7, WinHttpConnectionFreeProxyInfo);
 PROXY(8, WinHttpConnectionFreeProxyList);
 PROXY(9, WinHttpConnectionGetNameList);
 PROXY(10, WinHttpConnectionGetProxyInfo);
 PROXY(11, WinHttpConnectionGetProxyList);
 PROXY(12, WinHttpConnectionSetProxyInfo);
 PROXY(13, WinHttpCrackUrl);
 PROXY(14, WinHttpCreateProxyResolver);
 PROXY(15, WinHttpCreateUrl);
 PROXY(16, WinHttpDetectAutoProxyConfigUrl);
 PROXY(17, WinHttpFreeProxyResult);
 PROXY(18, WinHttpGetDefaultProxyConfiguration);
 PROXY(19, WinHttpGetIEProxyConfigForCurrentUser);
 PROXY(20, WinHttpGetProxyForUrl);
 PROXY(21, WinHttpGetProxyForUrlEx);
 PROXY(22, WinHttpGetProxyResult);
 PROXY(23, WinHttpGetTunnelSocket);
 PROXY(24, WinHttpOpen);
 PROXY(25, WinHttpOpenRequest);
 PROXY(26, WinHttpProbeConnectivity);
 PROXY(27, WinHttpQueryAuthSchemes);
 PROXY(28, WinHttpQueryDataAvailable);
 PROXY(29, WinHttpQueryHeaders);
 PROXY(30, WinHttpQueryOption);
 PROXY(31, WinHttpReadData);
 PROXY(32, WinHttpReceiveResponse);
 PROXY(33, WinHttpResetAutoProxy);
 PROXY(34, WinHttpSaveProxyCredentials);
 PROXY(35, WinHttpSendRequest);
 PROXY(36, WinHttpSetCredentials);
 PROXY(37, WinHttpSetDefaultProxyConfiguration);
 PROXY(38, WinHttpSetOption);
 PROXY(39, WinHttpSetStatusCallback);
 PROXY(40, WinHttpSetTimeouts);
 PROXY(41, WinHttpTimeFromSystemTime);
 PROXY(42, WinHttpTimeToSystemTime);
 PROXY(43, WinHttpWebSocketClose);
 PROXY(44, WinHttpWebSocketCompleteUpgrade);
 PROXY(45, WinHttpWebSocketQueryCloseStatus);
 PROXY(46, WinHttpWebSocketReceive);
 PROXY(47, WinHttpWebSocketSend);
 PROXY(48, WinHttpWebSocketShutdown);
 PROXY(49, WinHttpWriteData);
--- a/Doorstop/Proxy/proxy.def
+++ b/Doorstop/Proxy/proxy.def
@ -0,0 +1,54 @@
 LIBRARY    proxy.dll
 EXPORTS
    WinHttpAddRequestHeaders @1
    WinHttpAutoProxySvcMain @2
    WinHttpCheckPlatform @3
    WinHttpCloseHandle @4
    WinHttpConnect @5
    WinHttpConnectionDeleteProxyInfo @6
    WinHttpConnectionFreeNameList @7
    WinHttpConnectionFreeProxyInfo @8
    WinHttpConnectionFreeProxyList @9
    WinHttpConnectionGetNameList @10
    WinHttpConnectionGetProxyInfo @11
    WinHttpConnectionGetProxyList @12
    WinHttpConnectionSetProxyInfo @13
    WinHttpCrackUrl @14
    WinHttpCreateProxyResolver @15
    WinHttpCreateUrl @16
    WinHttpDetectAutoProxyConfigUrl @17
    WinHttpFreeProxyResult @18
    WinHttpGetDefaultProxyConfiguration @19
    WinHttpGetIEProxyConfigForCurrentUser @20
    WinHttpGetProxyForUrl @21
    WinHttpGetProxyForUrlEx @22
    WinHttpGetProxyResult @23
    WinHttpGetTunnelSocket @24
    WinHttpOpen @25
    WinHttpOpenRequest @26
    WinHttpProbeConnectivity @27
    WinHttpQueryAuthSchemes @28
    WinHttpQueryDataAvailable @29
    WinHttpQueryHeaders @30
    WinHttpQueryOption @31
    WinHttpReadData @32
    WinHttpReceiveResponse @33
    WinHttpResetAutoProxy @34
    WinHttpSaveProxyCredentials @35
    WinHttpSendRequest @36
    WinHttpSetCredentials @37
    WinHttpSetDefaultProxyConfiguration @38
    WinHttpSetOption @39
    WinHttpSetStatusCallback @40
    WinHttpSetTimeouts @41
    WinHttpTimeFromSystemTime @42
    WinHttpTimeToSystemTime @43
    WinHttpWebSocketClose @44
    WinHttpWebSocketCompleteUpgrade @45
    WinHttpWebSocketQueryCloseStatus @46
    WinHttpWebSocketReceive @47
    WinHttpWebSocketSend @48
    WinHttpWebSocketShutdown @49
    WinHttpWriteData @50
    SetGetMessageHook @51
    SetPeekMessageHook @52
--- a/Doorstop/Proxy/proxy.h
+++ b/Doorstop/Proxy/proxy.h
@ -0,0 +1,74 @@
 /*
 * Proxy.h -- Definitions for proxy-related functionality
 * 
 * The proxy works roughly as follows:
 * - We define our exports in proxy.c (computer generated)
 * - loadProxy initializes the proxy:
 *     1. Look up the name of this DLL
 *     2. Find the original DLL with the same name
 *     3. Load the original DLL
 *     4. Load all functions into originalFunctions array
 *     
 * For more information, refer to proxy.c 
 */

 #pragma once

 #pragma warning( disable : 4267 6387 6386 )

 #include <Windows.h>
 #include <Shlwapi.h>
 #include "assert_util.h"
 #include <crtdbg.h>

 #define ALT_POSTFIX L"_alt.dll"
 #define DLL_POSTFIX L".dll"

 extern FARPROC originalFunctions[];
 extern void loadFunctions(HMODULE dll);

 // Load the proxy functions into memory
 inline void loadProxy(wchar_t *moduleName)
 {
 	size_t module_name_len = wcslen(moduleName);

 	size_t alt_name_len = module_name_len + STR_LEN(ALT_POSTFIX);
 	wchar_t *alt_name = memalloc(sizeof(wchar_t) * alt_name_len);
 	wmemcpy(alt_name, moduleName, module_name_len);
 	wmemcpy(alt_name + module_name_len, ALT_POSTFIX, STR_LEN(ALT_POSTFIX));

 	wchar_t *dll_path = NULL; // The final DLL path

 	const int alt_full_path_len = GetFullPathNameW(alt_name, 0, NULL, NULL);
 	wchar_t *alt_full_path = memalloc(sizeof(wchar_t) * alt_full_path_len);
 	GetFullPathNameW(alt_name, alt_full_path_len, alt_full_path, NULL);
 	memfree(alt_name);

 	LOG("Looking for original DLL from %S\n", alt_full_path);

 	// Try to look for the alternative first in the same directory.
 	HMODULE handle = LoadLibrary(alt_full_path);

 	if (handle == NULL)
 	{
 		size_t system_dir_len = GetSystemDirectoryW(NULL, 0);
 		dll_path = memalloc(sizeof(wchar_t) * (system_dir_len + module_name_len + STR_LEN(DLL_POSTFIX)));
 		_ASSERTE(dll_path != nullptr);
 		GetSystemDirectoryW(dll_path, system_dir_len);
 		dll_path[system_dir_len - 1] = L'\\';
 		wmemcpy(dll_path + system_dir_len, moduleName, module_name_len);
 		wmemcpy(dll_path + system_dir_len + module_name_len, DLL_POSTFIX, STR_LEN(DLL_POSTFIX));

 		LOG("Looking for original DLL from %S\n", dll_path);

 		handle = LoadLibraryW(dll_path);
 	}

 	ASSERT_F(handle != NULL, L"Unable to load the original %s.dll (looked from system directory and from %s_alt.dll)!",
 		moduleName, moduleName);

 	memfree(alt_full_path);
 	memfree(dll_path);

 	loadFunctions(handle);
 }
--- a/Doorstop/Proxy/proxy.rc
+++ b/Doorstop/Proxy/proxy.rc
--- a/Doorstop/Proxy/proxydefs.txt
+++ b/Doorstop/Proxy/proxydefs.txt
@ -0,0 +1,63 @@
 SvchostPushServiceGlobals
 WinHttpAddRequestHeaders
 WinHttpAutoProxySvcMain
 WinHttpCheckPlatform
 WinHttpCloseHandle
 WinHttpConnect
 WinHttpConnectionDeletePolicyEntries
 WinHttpConnectionDeleteProxyInfo
 WinHttpConnectionFreeNameList
 WinHttpConnectionFreeProxyInfo
 WinHttpConnectionFreeProxyList
 WinHttpConnectionGetNameList
 WinHttpConnectionGetProxyInfo
 WinHttpConnectionGetProxyList
 WinHttpConnectionSetPolicyEntries
 WinHttpConnectionSetProxyInfo
 WinHttpConnectionUpdateIfIndexTable
 WinHttpCrackUrl
 WinHttpCreateProxyResolver
 WinHttpCreateUrl
 WinHttpDetectAutoProxyConfigUrl
 WinHttpFreeProxyResult
 WinHttpFreeProxyResultEx
 WinHttpFreeProxySettings
 WinHttpGetDefaultProxyConfiguration
 WinHttpGetIEProxyConfigForCurrentUser
 WinHttpGetProxyForUrl
 WinHttpGetProxyForUrlEx
 WinHttpGetProxyForUrlEx2
 WinHttpGetProxyForUrlHvsi
 WinHttpGetProxyResult
 WinHttpGetProxyResultEx
 WinHttpGetProxySettingsVersion
 WinHttpGetTunnelSocket
 WinHttpOpen
 WinHttpOpenRequest
 WinHttpProbeConnectivity
 WinHttpQueryAuthSchemes
 WinHttpQueryDataAvailable
 WinHttpQueryHeaders
 WinHttpQueryOption
 WinHttpReadData
 WinHttpReadProxySettings
 WinHttpReadProxySettingsHvsi
 WinHttpReceiveResponse
 WinHttpResetAutoProxy
 WinHttpSaveProxyCredentials
 WinHttpSendRequest
 WinHttpSetCredentials
 WinHttpSetDefaultProxyConfiguration
 WinHttpSetOption
 WinHttpSetStatusCallback
 WinHttpSetTimeouts
 WinHttpTimeFromSystemTime
 WinHttpTimeToSystemTime
 WinHttpWebSocketClose
 WinHttpWebSocketCompleteUpgrade
 WinHttpWebSocketQueryCloseStatus
 WinHttpWebSocketReceive
 WinHttpWebSocketSend
 WinHttpWebSocketShutdown
 WinHttpWriteData
 WinHttpWriteProxySettings
--- a/Doorstop/Proxy/winapi_util.h
+++ b/Doorstop/Proxy/winapi_util.h
@ -0,0 +1,65 @@
 #pragma once

 #pragma warning( disable : 4267 6387 )

 #include <windows.h>
 #include "crt.h"

 inline size_t get_module_path(HMODULE module, wchar_t **result, size_t *size, size_t free_space)
 {
 	size_t i = 0;
 	size_t len, s;
 	*result = NULL;
 	do
 	{
 		if (*result != NULL)
 			memfree(*result);
 		i++;
 		s = i * MAX_PATH + 1;
 		*result = memalloc(sizeof(wchar_t) * s);
 		len = GetModuleFileNameW(module, *result, s);
 	}
 	while (GetLastError() == ERROR_INSUFFICIENT_BUFFER && s - len >= free_space);

 	if (size != NULL)
 		*size = s;
 	return len;
 }

 inline wchar_t *get_ini_entry(const wchar_t *config_file, const wchar_t *section, const wchar_t *key,
                              const wchar_t *default_val)
 {
 	size_t i = 0;
 	size_t size, read;
 	wchar_t *result = NULL;
 	do
 	{
 		if (result != NULL)
 			memfree(result);
 		i++;
 		size = i * MAX_PATH + 1;
 		result = memalloc(sizeof(wchar_t) * size);
 		read = GetPrivateProfileStringW(section, key, default_val, result, size, config_file);
 	}
 	while (read == size - 1);
 	return result;
 }

 inline wchar_t *get_file_name_no_ext(wchar_t *str, size_t len)
 {
 	size_t ext_index = len;
 	size_t i;
 	for (i = len; i > 0; i--)
 	{
 		wchar_t c = *(str + i);
 		if (c == L'.' && ext_index == len)
 			ext_index = i;
 		else if (c == L'\\')
 			break;
 	}

 	size_t result_len = ext_index - i;
 	wchar_t *result = memcalloc(sizeof(wchar_t) * result_len);
 	wmemcpy(result, str + i + 1, result_len - 1);
 	return result;
 }
--- a/Doorstop/README.md
+++ b/Doorstop/README.md
@ -0,0 +1,47 @@
 <p align="center">
   <img src="https://raw.githubusercontent.com/NeighTools/UnityDoorstop/master/docs/logo_sm.png"/>
 </p>

 ![Github All Releases](https://img.shields.io/github/downloads/NeighTools/UnityDoorstop/total.svg)
 ![GitHub release](https://img.shields.io/github/release/NeighTools/UnityDoorstop.svg)
 ![license](https://img.shields.io/github/license/NeighTools/UnityDoorstop.svg)

 *Run managed code before Unity does!*

 # Unity Doorstop

 Doorstop is a tool to execute managed assemblies inside Unity as early as possible!

 This repository is indented mainly for developers!  
 Developers should package Doorstop into their applications for the end-users.

 ## Features

 * **Runs first**: Doorstop runs its own code before Unity has an ability to do so.
 * **Configurable**: A very basic configuration file allows to specify your own assembly to execute!
 * **Public domain!** You are fully free to embed Doorstop into your application!

 ## Guides for users and developers on [the wiki](https://github.com/NeighTools/UnityDoorstop/wiki)

 ## Building

 To build, you will need:

 * Visual Studio 2017 (2015 might work as well with some modifications)
 * Visual C++ Toolset v140
 * .NET Framework 3.5 or newer (only for the example, not used by the proxy)
 * Python (only to generate proxy functions; not needed to build)

 Clone, open in Visual Studio, select the platform (x86/x64) and build.

 #### Custom proxy functions

 Doorstop's proxy is flexible and allows to be load as different DLLs.
 You can modify which functions you want to proxy by adding/removing function names in `Proxy/proxydefs.txt` and running `proxygen/proxy_gen.py ../Proxy/proxydefs.txt` to generate an appropriate proxy functions.

 The current set up allows to use the proxy for the following DLLs:

 * `winhttp.dll` (All exports)
 * `iphlpapi.dll` (Only `GetIpAddrTable`)

 (WIP: Currently all build results are placed in separate folders; will be changed later)
--- a/Doorstop/UnityDoorstop.sln
+++ b/Doorstop/UnityDoorstop.sln
@ -0,0 +1,77 @@

 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.27428.2043
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "proxy", "Proxy\Proxy.vcxproj", "{88609E16-731F-46C9-8139-6B1A7A83240D}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DoorstopTest", "DoorstopTest\DoorstopTest.csproj", "{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
 		Debug|x64 = Debug|x64
 		Debug|x86 = Debug|x86
 		Release|Any CPU = Release|Any CPU
 		Release|x64 = Release|x64
 		Release|x86 = Release|x86
 		Verbose_Release|Any CPU = Verbose_Release|Any CPU
 		Verbose_Release|x64 = Verbose_Release|x64
 		Verbose_Release|x86 = Verbose_Release|x86
 		Verbose|Any CPU = Verbose|Any CPU
 		Verbose|x64 = Verbose|x64
 		Verbose|x86 = Verbose|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{88609E16-731F-46C9-8139-6B1A7A83240D}.Debug|Any CPU.ActiveCfg = Debug|Win32
 		{88609E16-731F-46C9-8139-6B1A7A83240D}.Debug|x64.ActiveCfg = Debug|x64
 		{88609E16-731F-46C9-8139-6B1A7A83240D}.Debug|x64.Build.0 = Debug|x64
 		{88609E16-731F-46C9-8139-6B1A7A83240D}.Debug|x86.ActiveCfg = Debug|Win32
 		{88609E16-731F-46C9-8139-6B1A7A83240D}.Debug|x86.Build.0 = Debug|Win32
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 		{88609E16-731F-46C9-8139-6B1A7A83240D}.Release|x86.Build.0 = Release|Win32
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 		{88609E16-731F-46C9-8139-6B1A7A83240D}.Verbose_Release|x86.Build.0 = Verbose_Release|Win32
 		{88609E16-731F-46C9-8139-6B1A7A83240D}.Verbose|Any CPU.ActiveCfg = Verbose|Win32
 		{88609E16-731F-46C9-8139-6B1A7A83240D}.Verbose|x64.ActiveCfg = Verbose|x64
 		{88609E16-731F-46C9-8139-6B1A7A83240D}.Verbose|x64.Build.0 = Verbose|x64
 		{88609E16-731F-46C9-8139-6B1A7A83240D}.Verbose|x86.ActiveCfg = Verbose|Win32
 		{88609E16-731F-46C9-8139-6B1A7A83240D}.Verbose|x86.Build.0 = Verbose|Win32
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Debug|x64.ActiveCfg = Debug|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Debug|x64.Build.0 = Debug|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Debug|x86.ActiveCfg = Debug|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Debug|x86.Build.0 = Debug|Any CPU
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 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Release|x64.Build.0 = Release|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Release|x86.ActiveCfg = Release|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Release|x86.Build.0 = Release|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Verbose_Release|Any CPU.ActiveCfg = Verbose_Release|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Verbose_Release|Any CPU.Build.0 = Verbose_Release|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Verbose_Release|x64.ActiveCfg = Verbose_Release|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Verbose_Release|x64.Build.0 = Verbose_Release|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Verbose_Release|x86.ActiveCfg = Verbose_Release|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Verbose_Release|x86.Build.0 = Verbose_Release|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Verbose|Any CPU.ActiveCfg = Verbose|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Verbose|Any CPU.Build.0 = Verbose|Any CPU
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 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Verbose|x64.Build.0 = Verbose|Any CPU
 		{62B61CCC-0775-4CF4-B37A-EB5E33CBD08C}.Verbose|x86.ActiveCfg = Verbose|Any CPU
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 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {4EF47C82-18DC-4E9E-A878-8C003FFB303D}
 	EndGlobalSection
 EndGlobal
--- a/Doorstop/docs/logo.png
+++ b/Doorstop/docs/logo.png
--- a/Doorstop/docs/logo_sm.png
+++ b/Doorstop/docs/logo_sm.png
--- a/Doorstop/proxygen/proxy_gen.py
+++ b/Doorstop/proxygen/proxy_gen.py
@ -0,0 +1,52 @@
 import sys
 import os
 #import pefile
 import io
 import string

 def main():
    path = os.path.dirname(os.path.realpath(sys.argv[0]))
    file = sys.argv[1]

    proxies = io.StringIO()
    proxy_add = io.StringIO()
    proxy_def = io.StringIO()
    proxy_def_file = io.StringIO()

    count = 0

    """ for dll in dlls:
        pe = pefile.PE(dll, fast_load=True)
        pe.parse_data_directories()
        for exp in pe.DIRECTORY_ENTRY_EXPORT.symbols:
            name = exp.name.decode()

            proxies.write("%s\n" % name)
            proxy_add.write("ADD_ORIGINAL(%d, %s);\n" % (count, name))
            proxy_def.write("PROXY(%d, %s);\n" % (count, name))
            count = count + 1 """

    with open(file, "r") as includes:
        names = includes.readlines()
        for name in names:
            name = name.strip()
            proxies.write(f"{name}\n")
            proxy_add.write(f"ADD_ORIGINAL({count}, {name});\n")
            proxy_def.write(f"PROXY({count}, {name});\n")
            proxy_def_file.write(f"    {name} @{count+1}\n")
            count = count + 1

    with open(f"{path}\\templates\\proxy_template.c", "r") as proxy_file:
        new_proxy = string.Template(proxy_file.read()).safe_substitute(proxy_count=count, proxy_add=proxy_add.getvalue(), proxy_def=proxy_def.getvalue())
    
    with open(f"{path}\\..\\Proxy\\proxy.c", "w") as proxy_c_file:
        proxy_c_file.write(new_proxy)
        
    with open(f"{path}\\templates\\proxy_template.def", "r") as proxy_file:
        new_proxy_def = string.Template(proxy_file.read()).safe_substitute(proxy_exports=proxy_def_file.getvalue())
    
    with open(f"{path}\\..\\Proxy\\proxy.def", "w") as proxy_def_file:
        proxy_def_file.write(new_proxy_def)

 if __name__ == "__main__":
    main()
--- a/Doorstop/proxygen/templates/proxy_template.c
+++ b/Doorstop/proxygen/templates/proxy_template.c
@ -0,0 +1,34 @@
 /* ==================================
 * COMPUTER GENERATED -- DO NOT EDIT
 * ==================================
 * 
 * This file contains the definitions for all proxy functions this DLL supports.
 * 
 * The proxies are very simple functions that should be optimizied into a 
 * single JMP instruction without editing the stack at all.
 * 
 * NOTE: While this works, this is a somewhat hackish approach that is based on how 
 * the compiler optimizes the code. That said, the proxy will not work on Debug build currently
 * (that can be fixed by changing the appropriate compile flag that I am yet to locate).
 */

 #pragma warning( disable : 4244 )
 
 #include <windows.h>

 #define ADD_ORIGINAL(i, name) originalFunctions[i] = GetProcAddress(dll, #name)

 #define PROXY(i, name) \
 	__declspec(dllexport) ULONG __stdcall name() \
 	{ \
 		return originalFunctions[i](); \
 	}

 FARPROC originalFunctions[${proxy_count}] = {0};

 void loadFunctions(HMODULE dll)
 {
 ${proxy_add}
 }

 ${proxy_def}
--- a/Doorstop/proxygen/templates/proxy_template.def
+++ b/Doorstop/proxygen/templates/proxy_template.def
@ -0,0 +1,3 @@
 LIBRARY    proxy.dll
 EXPORTS
 ${proxy_exports}
--- a/Doorstop/proxygen/winhttp.txt
+++ b/Doorstop/proxygen/winhttp.txt
@ -0,0 +1,50 @@
 WinHttpAddRequestHeaders
 WinHttpAutoProxySvcMain
 WinHttpCheckPlatform
 WinHttpCloseHandle
 WinHttpConnect
 WinHttpConnectionDeleteProxyInfo
 WinHttpConnectionFreeNameList
 WinHttpConnectionFreeProxyInfo
 WinHttpConnectionFreeProxyList
 WinHttpConnectionGetNameList
 WinHttpConnectionGetProxyInfo
 WinHttpConnectionGetProxyList
 WinHttpConnectionSetProxyInfo
 WinHttpCrackUrl
 WinHttpCreateProxyResolver
 WinHttpCreateUrl
 WinHttpDetectAutoProxyConfigUrl
 WinHttpFreeProxyResult
 WinHttpGetDefaultProxyConfiguration
 WinHttpGetIEProxyConfigForCurrentUser
 WinHttpGetProxyForUrl
 WinHttpGetProxyForUrlEx
 WinHttpGetProxyResult
 WinHttpGetTunnelSocket
 WinHttpOpen
 WinHttpOpenRequest
 WinHttpProbeConnectivity
 WinHttpQueryAuthSchemes
 WinHttpQueryDataAvailable
 WinHttpQueryHeaders
 WinHttpQueryOption
 WinHttpReadData
 WinHttpReceiveResponse
 WinHttpResetAutoProxy
 WinHttpSaveProxyCredentials
 WinHttpSendRequest
 WinHttpSetCredentials
 WinHttpSetDefaultProxyConfiguration
 WinHttpSetOption
 WinHttpSetStatusCallback
 WinHttpSetTimeouts
 WinHttpTimeFromSystemTime
 WinHttpTimeToSystemTime
 WinHttpWebSocketClose
 WinHttpWebSocketCompleteUpgrade
 WinHttpWebSocketQueryCloseStatus
 WinHttpWebSocketReceive
 WinHttpWebSocketSend
 WinHttpWebSocketShutdown
 WinHttpWriteData