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// Check that statically linked binary executes successfully
// with RLIMIT_NOFILE resource lowered to zero. Regression
// test for issue #96621.
//
//@ run-pass
//@ dont-check-compiler-stderr
//@ only-linux
//@ no-prefer-dynamic
//@ compile-flags: -Ctarget-feature=+crt-static -Crpath=no -Crelocation-model=static
#![feature(exit_status_error)]
#![feature(rustc_private)]
extern crate libc;
use std::os::unix::process::CommandExt;
use std::process::Command;
fn main() {
let mut args = std::env::args();
let this = args.next().unwrap();
match args.next().as_deref() {
None => {
let mut cmd = Command::new(this);
cmd.arg("Ok!");
unsafe {
cmd.pre_exec(|| {
let rlim = libc::rlimit {
rlim_cur: 0,
rlim_max: 0,
};
if libc::setrlimit(libc::RLIMIT_NOFILE, &rlim) == -1 {
Err(std::io::Error::last_os_error())
} else {
Ok(())
}
})
};
let output = cmd.output().unwrap();
println!("{:?}", output);
output.status.exit_ok().unwrap();
assert!(output.stdout.starts_with(b"Ok!"));
}
Some(word) => {
println!("{}", word);
}
}
}
|
