You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: dnsapi.rs
    path of file: ./repos/libscemu/src/emu/winapi32
    
    the code of the file until where you have to start completion: use crate::emu;
use crate::emu::winapi32::kernel32;
//use crate::emu::winapi32::helper;
//use crate::emu::endpoint;

pub fn gateway(addr: u32, emu: &mut emu::Emu) -> String {
    match addr {
        0x6dc2a9bc => DnsQuery_A(emu),
        _ => {
            let apiname = kernel32::guess_api_name(emu, addr);
            println!("calling unimplemented dnsapi API 0x{:x} {}", addr, apiname);
            return apiname;
        }
    }

    return String::new();
}

fn DnsQuery_A(emu: &mut emu::Emu) {
    let name_ptr = emu
        .map
    
fn DnsQuery_A(emu: &mut emu::Emu) {
    let name_ptr = emu
        .maps
        .read_dword(emu.regs.get_esp())
        .expect("dnsapi!DnsQuery_A cant read name ptr param") as u64;
    let wtype = emu
        .maps
        .read_dword(emu.regs.get_esp() + 4)
        .expect("dnsapi!DnsQuery_A cant read wtype pram");
    let opt = emu
        .maps
        .read_dword(emu.regs.get_esp() + 8)
        .expect("dnsapi!DnsQuery_A cant read options param");
    let extra = emu
        .maps
        .read_dword(emu.regs.get_esp() + 12)
        .expect("dnsapi!DnsQuery_A cant read extra param");
    let out_results = emu
        .maps
        .read_dword(emu.regs.get_esp() + 16)
        .expect("dnsapi!DnsQuery_A cant read out results param");
    let out_reserved = emu
        .maps
        .read_dword(emu.regs.get_esp() + 20)
        .expect("dnsapi!DnsQuery_A cant read out reserved param");

    let name = emu.maps.read_string(name_ptr);

    println!(
        "{}** {} dnsapi!DnsQuery_A '{}' {}",
        emu.colors.light_red, emu.pos, name, emu.colors.nc
    );

    emu.regs.rax = 1;
}