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: ftpd.rs
    path of file: ./repos/rustybox/networking
    
    the code of the file until where you have to start completion: use crate::libbb::appletlib::applet_name;
use crate::libbb::ptr_to_globals::bb_errno;
use crate::libbb::xfuncs_printf::xmalloc;
use crate::libpwdgrp::pwd_grp::bb_internal_getpwnam;
use crate::librb::size_t;
use crate::librb::smallint;
use crate::librb::socklen_t;
use c2rust_asm_casts;
use c2rust_asm_casts::AsmCastTrait;
use libc;
use libc::alarm;
use libc::chdir;
use libc::clos
    
unsafe extern "C" fn handle_pwd() {
  let mut cwd: *mut libc::c_char = std::ptr::null_mut::<libc::c_char>();
  let mut response: *mut libc::c_char = std::ptr::null_mut::<libc::c_char>();
  cwd = crate::libbb::xgetcwd::xrealloc_getcwd_or_warn(0 as *mut libc::c_char);
  if cwd.is_null() {
    cwd = crate::libbb::xfuncs_printf::xstrdup(b"\x00" as *const u8 as *const libc::c_char)
  }

  // We have to promote each " to ""
  response = escape_text(
    b" \"\x00" as *const u8 as *const libc::c_char,
    cwd,
    ((('\"' as i32) << 8i32) + '\"' as i32) as libc::c_uint,
  );
  free(cwd as *mut libc::c_void);
  cmdio_write(
    (0i32
      | '0' as i32 + 257i32 / 1i32 % 10i32 << SHIFT0 as libc::c_int
      | '0' as i32 + 257i32 / 10i32 % 10i32 << SHIFT1 as libc::c_int
      | '0' as i32 + 257i32 / 100i32 % 10i32 << SHIFT2 as libc::c_int) as u32,
    response,
  );
  free(response as *mut libc::c_void);
}