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: mkdir.rs
    path of file: ./repos/rustybox/coreutils
    
    the code of the file until where you have to start completion: use libc;
use libc::mode_t;
extern "C" {
  #[no_mangle]
  static mut optind: libc::c_int;

}

pub type C2RustUnnamed = libc::c_int;
pub const FILEUTILS_IGNORE_CHMOD_ERR: C2RustUnnamed = -2147483648;
pub const FILEUTILS_REFLINK_ALWAYS: C2RustUnnamed = 262144;
pub const FILEUTILS_REFLINK: C2RustUnnamed = 131072;
pub const FILEUTILS_RMDEST: C2RustUnnamed = 32768;
pub const FILEUTILS_NO_TARGET_DIR: C2RustUnnamed = 16384;
pub const FILEUTILS_UPDATE: C2RustUnnamed = 8192;
pub const FILEUTILS_VERBOSE: C2RustUnnamed = 4096;
pub const FILEUTILS_DEREFERENCE_L0: C2RustUnnamed = 256;
pub const FILEUTILS_DEREF_SOFTLINK: C2RustUnnamed = 128;
pub const FILEUTILS_MAKE_SOFTLINK: C2RustUnnamed = 64;
pub const FILEUTILS_MAKE_HARDLINK: C2RustUnnamed = 32;
pub const FILEUTILS_INTERACTIVE: C2RustUnnamed = 16;
pub const FILEUTILS_FORCE: C2RustUnnamed = 8;
pub const FILEUTILS_RECUR: C2RustUnnamed = 4;
pub const FILEUTILS_DEREFERENCE: C2RustUnnamed = 2;
pub const FILEUTILS_PRESERVE_STATUS: C2RustUnnamed = 1;

/*
 * Mini mkdir implementation for busybox
 *
 * Copyright (C) 2001 Matt Kraai <kraai@alumni.carnegiemellon.edu>
 *
 * Licensed under GPLv2 or later, see file LICENSE in this source
    
pub unsafe fn mkdir_main(mut _argc: libc::c_int, mut argv: *mut *mut libc::c_char) -> libc::c_int {
  let mut mode: libc::c_long = -1i32 as libc::c_long;
  let mut status: libc::c_int = 0;
  let mut flags: libc::c_int = 0;
  let mut opt: libc::c_uint = 0;
  let mut smode: *mut libc::c_char = std::ptr::null_mut::<libc::c_char>();
  opt = crate::libbb::getopt32::getopt32long(
    argv,
    b"m:pv\x00" as *const u8 as *const libc::c_char,
    b"mode\x00\x01mparents\x00\x00pverbose\x00\x00v\x00" as *const u8 as *const libc::c_char,
    &mut smode as *mut *mut libc::c_char,
  );
  if opt & 1i32 as libc::c_uint != 0 {
    let mut mmode: mode_t =
      crate::libbb::parse_mode::bb_parse_mode(smode, 0o777i32 as libc::c_uint) as mode_t;
    if mmode == -1i32 as mode_t {
      crate::libbb::verror_msg::bb_error_msg_and_die(
        b"invalid mode \'%s\'\x00" as *const u8 as *const libc::c_char,
        smode,
      );
    }
    mode = mmode as libc::c_long
  }
  if opt & 2i32 as libc::c_uint != 0 {
    flags |= FILEUTILS_RECUR as libc::c_int
  }
  if opt & 4i32 as libc::c_uint != 0 && FILEUTILS_VERBOSE as libc::c_int != 0 {
    flags |= FILEUTILS_VERBOSE as libc::c_int
  }
  argv = argv.offset(optind as isize);
  if (*argv.offset(0)).is_null() {
    crate::libbb::appletlib::bb_show_usage();
  }
  loop {
    if crate::libbb::make_directory::bb_make_directory(*argv, mode, flags) != 0 {
      status = 1i32
    }
    argv = argv.offset(1);
    if (*argv).is_null() {
      break;
    }
  }
  return status;
}