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4559e61dd7
Add a test that fails if `#[unix_sigpipe = "inherit"]` wrongly results in `SIGPIPE` being `SIG_DFL` if the parent has `SIG_IGN`. We have no current test for this particular case.
30 lines
1.1 KiB
Rust
30 lines
1.1 KiB
Rust
//@ ignore-cross-compile because aux-bin does not yet support it
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//@ only-unix because SIGPIPE is a unix thing
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//@ aux-bin: assert-inherit-sig_dfl.rs
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//@ aux-bin: assert-inherit-sig_ign.rs
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//@ run-pass
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#![feature(rustc_private, unix_sigpipe)]
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extern crate libc;
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// By default the Rust runtime resets SIGPIPE to SIG_DFL before exec:ing child
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// processes so opt-out of that with `#[unix_sigpipe = "sig_dfl"]`. See
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// https://github.com/rust-lang/rust/blob/bf4de3a874753bbee3323081c8b0c133444fed2d/library/std/src/sys/pal/unix/process/process_unix.rs#L359-L384
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#[unix_sigpipe = "sig_dfl"]
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fn main() {
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// First expect SIG_DFL in a child process with #[unix_sigpipe = "inherit"].
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assert_inherit_sigpipe_disposition("auxiliary/bin/assert-inherit-sig_dfl");
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// With SIG_IGN we expect #[unix_sigpipe = "inherit"] to also get SIG_IGN.
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unsafe {
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libc::signal(libc::SIGPIPE, libc::SIG_IGN);
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}
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assert_inherit_sigpipe_disposition("auxiliary/bin/assert-inherit-sig_ign");
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}
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fn assert_inherit_sigpipe_disposition(aux_bin: &str) {
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let mut cmd = std::process::Command::new(aux_bin);
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assert!(cmd.status().unwrap().success());
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}
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