dramatically reduce dll size, by replacing vector<char> with char[]

Signed-off-by: fufesou <shuanglongchen@yeah.net>

Author: fufesou

Img2Mem/main.cpp

@@ -52,7 +52,7 @@ int write_imgdata(const std::vector<char>& data, const char* outfile)
 
     ofs << "#include \"pch.h\"\n";
     ofs << "#include \"./img.h\"\n\n";
-    ofs << "std::vector<unsigned char> g_img{\n";
+    ofs << "unsigned char g_img[] = {\n";
 
     auto total = data.size();
     const unsigned char* pdata = reinterpret_cast<const unsigned char*>(data.data());
@@ -72,7 +72,9 @@ int write_imgdata(const std::vector<char>& data, const char* outfile)
         ofs << buf;
         ofs << "\n";
     }
-    ofs << "};\n";
+    ofs << "};\n\n";
+
+    ofs << "long long g_imgLen = sizeof(g_img);\n";
 
     return 0;
 }
@@ -112,7 +114,7 @@ int save_img(const char* outfile)
         return 0;
     }
 
-    std::copy(g_img.begin(), g_img.end(), std::ostreambuf_iterator<char>(ofs));
+    std::copy(g_img, g_img + g_imgLen, std::ostreambuf_iterator<char>(ofs));
     printf("Succeeded to write to %s\n", outfile);
     return 0;
 }

WindowInjection/dllmain.cpp

@@ -217,7 +217,7 @@ HWND CreateWin(HMODULE hModule, UINT zbid, const TCHAR* title, const TCHAR* clas
 		return nullptr;
 	}
 
-	bool test = true;
+	bool test = false;
 	if (test)
 	{
 		mi.rcMonitor.left += 100;
@@ -323,8 +323,8 @@ DWORD WINAPI UwU(LPVOID lpParam)
 	if (g_loadFromMemory)
 	{
 		DIBres = g_bitmapLoader.CreateDIBFromMemory(
-			reinterpret_cast<char*>(g_img.data()),
-			static_cast<unsigned int>(g_img.size()),
+			reinterpret_cast<char*>(g_img),
+			static_cast<unsigned int>(g_imgLen),
 			rect);
 	}
 	else

WindowInjection/img.cpp

@@ -1,7 +1,7 @@
 #include "pch.h"
 #include "./img.h"
 
-std::vector<unsigned char> g_img{
+unsigned char g_img[] = {
 0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48, 0x44, 0x52, 0x00, 0x00, 0x07, 0x80,
 0x00, 0x00, 0x04, 0x38, 0x08, 0x03, 0x00, 0x00, 0x00, 0xdf, 0x0d, 0x31, 0x71, 0x00, 0x00, 0x00, 0xf3, 0x50, 0x4c, 0x54,
 0x45, 0xc7, 0xc6, 0xe1, 0x00, 0x00, 0x00, 0xaa, 0xaa, 0xc1, 0x50, 0x50, 0x5a, 0x2d, 0x2c, 0x33, 0x8e, 0x8d, 0xa0, 0xaa,
@@ -657,3 +657,5 @@ std::vector<unsigned char> g_img{
 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x5b, 0x01, 0xa8, 0x05, 0x5a, 0xd7,
 0x4c, 0x3a, 0x97, 0x67, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x44, 0xae, 0x42, 0x60, 0x82, 
 };
+
+long long g_imgLen = sizeof(g_img);

WindowInjection/img.h

@@ -2,7 +2,7 @@
 
 #include "framework.h"
 
-#include <vector>
 
-extern std::vector<unsigned char> g_img;
+extern unsigned char g_img[];
+extern long long g_imgLen;