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: zcip.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::librb::smallint;
use c2rust_asm_casts;
use c2rust_asm_casts::AsmCastTrait;
use libc;
use libc::openlog;
use libc::putenv;
extern "C" {
  #[no_mangle]
  fn memcpy(_: *mu
    
unsafe extern "C" fn pick_nip() -> u32 {
  let mut tmp: libc::c_uint = 0;
  loop {
    tmp = rand() as libc::c_uint & (0xffffffffu32 & !0xffff0000u32);
    if !(tmp > (0xffffffffu32 & !0xffff0000u32).wrapping_sub(0x200i32 as libc::c_uint)) {
      break;
    }
  }
  return {
    let mut __v: libc::c_uint = 0;
    let mut __x: libc::c_uint = (*(bb_common_bufsiz1.as_mut_ptr() as *mut globals))
      .localnet_ip
      .wrapping_add(0x100i32 as libc::c_uint)
      .wrapping_add(tmp);
    if false {
      __v = (__x & 0xff000000u32) >> 24i32
        | (__x & 0xff0000i32 as libc::c_uint) >> 8i32
        | (__x & 0xff00i32 as libc::c_uint) << 8i32
        | (__x & 0xffi32 as libc::c_uint) << 24i32
    } else {
      let fresh0 = &mut __v;
      let fresh1;
      let fresh2 = __x;
      llvm_asm!("bswap $0" : "=r" (fresh1) : "0"
     (c2rust_asm_casts::AsmCast::cast_in(fresh0, fresh2)) :);
      c2rust_asm_casts::AsmCast::cast_out(fresh0, fresh2, fresh1);
    }
    __v
  };
}