wslFromWindows.cpp

#include <windows.h>
#include <shellapi.h>
#include <shlobj.h>
#include <iostream>
#include <string>
#include <fstream>
#include <stdexcept>
#include <stdio.h>

std::string exec(const char* cmd)
{
    char buffer[128];
    std::string result = "";
    FILE* pipe = _popen(cmd, "r");
    if(!pipe) throw std::runtime_error("_popen() failed!");//popen for POSIX
    try
    {
        while(!feof(pipe))
        {
            if(fgets(buffer, 128, pipe) != NULL)
            {
                result += buffer;
            }
        }
    }
    catch(...)
    {
        _pclose(pipe);
        throw;
    }
    _pclose(pipe);
    return result;
}

LPWSTR stringToLPWSTR(const std::string& instr)
{
    int bufferlen = ::MultiByteToWideChar(CP_ACP, 0, instr.c_str(), instr.size(), NULL, 0);
    LPWSTR widestr = new WCHAR[bufferlen + 1];
    ::MultiByteToWideChar(CP_ACP, 0, instr.c_str(), instr.size(), widestr, bufferlen);
    widestr[bufferlen] = 0;
    return widestr;
}

bool fileExist(const char *fileName)
{
    std::ifstream infile(fileName);
    return infile.good();
}

int main(void)
{
    std::string command;
    if(!fileExist("C:\\Windows\\SysWOW64\\bash.exe"))
    {
        ShellExecuteW(NULL, L"open", L"cmd.exe", L" /C mklink C:\\Windows\\SysWOW64\\bash.exe C:\\Windows\\System32\\bash.exe", NULL, SW_HIDE);
    }
    //command = " /C C:\\Windows\\SysWOW64\\bash.exe -c ls > test.txt";
    //ShellExecuteW(NULL, L"open", L"cmd.exe", stringToLPWSTR(command), NULL, SW_HIDE);
    std::cout<<exec("cmd.exe /C C:\\Windows\\SysWOW64\\bash.exe -c ls")<<std::endl;
    system("pause");
}