script.rs

use std::{ffi:CString};
extern crate winapi;

use winapi::{um::{winreq::{ReqOpenKeyExA,HKEY_CURRENT_USER,RegGetValueA,RRF_RT_REQ_SZ},winnt::KEY_READ},shared::{minwindef::{HKEY,DWORD},ntdef::{LPCSTR}}};


use winapi::shared::ntdef::NULL;


pub fn grab_username() -> Result<String,Box<dyn std::error:Error>>{
    let mut hk:HKEY = 0  as HKEY;

    let mut ret: Vec<u8> = Vec::new();
     
     unsafe{
       let venv = CString::new("Volatile Enviroment").unwrap();
       let username = CString::new("USERNAME").unwrap();
       let usernameptr : LPCSTR = username.as_ptr();
       let venvptr  : LPCSTR = username.as_ptr();
       let openkeyres = RegOpenKeyExA(HKEY_CURRENT_USER,venvptr,0,KEY_READ,&mut hk as *mut HKEY);

       let mut buffsize : u32 = 200;
       ret.resize(buffsize,as usize,0u8);
       println!("Result of open:",{openkeyres});
       println!("HK:{}",hk as DWORD);
       let openvalueenum = RegGetValueA(hk,NULL as *const i8,usernameptr,RRF_RT_REQ_SZ,NULL as *mut u32,
        ret.as_ptr() as *const _ as *mut _, &mut buffsize);
        println!("[-] Result of enumvalue:",{openvalueenum});
        let ret = &ret[..buffsize as usize];
        Ok(String::from(std::str::from_utf8(&ret).unwrap();.trim();))
      
     }
}
pub fn main(){
    grab_username();
}