tests/ui/command/command-setgroups.rs

   1 // run-pass
   2 // ignore-windows - this is a unix-specific test
   3 // ignore-emscripten
   4 // ignore-sgx
   5 // ignore-musl - returns dummy result for _SC_NGROUPS_MAX
   6
   7 #![feature(rustc_private)]
   8 #![feature(setgroups)]
   9
  10 extern crate libc;
  11 use std::process::Command;
  12 use std::os::unix::process::CommandExt;
  13
  14 fn main() {
  15     #[cfg(unix)]
  16     run()
  17 }
  18
  19 #[cfg(unix)]
  20 fn run() {
  21     let max_ngroups = unsafe { libc::sysconf(libc::_SC_NGROUPS_MAX) };
  22     let max_ngroups = max_ngroups as u32 + 1;
  23     let vec: Vec<u32> = (0..max_ngroups).collect();
  24     let p = Command::new("/bin/id").groups(&vec[..]).spawn();
  25     assert!(p.is_err());
  26 }