Michael Fabian 'Xaymar' Dirks
82 lines
1.6 KiB
C++
82 lines
1.6 KiB
C++
#include "dlltoexe.hpp"
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#include <fstream>
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#include <Windows.h>
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#pragma pack(push, 1)
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struct Head {
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short machine, num_sects;
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int timedata, sym_table, num_syms;
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short opt_size, chars;
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};
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struct Opt1 {
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short magic;
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char major, minor;
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int code_size, data_size, udata_size;
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int entry, code_base, data_base;
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};
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struct Sect {
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char name[8];
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int virt_size, virt_addr; //in mem
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int data_size, data_addr; //on disk
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int relocs, lines; //file ptrs
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short num_relocs, num_lines;
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int chars;
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};
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#pragma pack(pop)
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bool dllToExe(const char* exe_file, const char* dll_file, const char* entry_func)
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{
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//find proc address of bbWinMain
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HMODULE hmod = LoadLibrary(dll_file);
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if (!hmod)
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return false;
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int proc = (int)GetProcAddress(hmod, entry_func);
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int entry = proc - (int)hmod;
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FreeLibrary(hmod);
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if (!proc)
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return false;
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//Convert dll to exe
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std::fstream in(dll_file, std::ios_base::binary | std::ios_base::in);
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if (!in.is_open())
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return false;
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std::fstream out(exe_file, std::ios::binary | std::ios_base::out | std::ios_base::trunc);
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if (!out.is_open())
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return false;
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int offs;
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in.seekg(0x3c);
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in.read((char*)&offs, 4);
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//copy first bit...
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in.seekg(0);
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for (int k = 0; k < offs + 4; ++k)
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out.put(in.get());
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//reader file header
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Head head = {0};
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in.read((char*)&head, sizeof(head));
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//change DLL to EXE
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head.chars = 0x10e;
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out.write((char*)&head, sizeof(head));
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//read opts 1
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Opt1 opt1 = {0};
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in.read((char*)&opt1, sizeof(opt1));
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opt1.entry = entry;
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out.write((char*)&opt1, sizeof(opt1));
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//copy rest of file...
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while (!in.eof()) {
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out.put(in.get());
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}
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out.close();
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in.close();
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return true;
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}
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