1 files changed, 46 insertions, 0 deletions
diff --git a/tests/ui/process/nofile-limit.rs b/tests/ui/process/nofile-limit.rs
new file mode 100644
index 000000000..3ddf8d6ef
--- /dev/null
+++ b/tests/ui/process/nofile-limit.rs
@@ -0,0 +1,46 @@
+// 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);
+        }
+    }
+}