From 02f2edebafd3929fc0ba096e3fe38123e205bb37 Mon Sep 17 00:00:00 2001 From: Luca Bruno Date: Thu, 26 Oct 2017 09:30:55 +0000 Subject: sys/socket: add UnixAddr abstract name getter This introduces an `as_abstract()` getter to `UnixAddr` in order to retrieve the name of an abstract unix socket. This also adds tests around abstract addresses and clarify docs, adding explicit semantics. --- test/sys/test_socket.rs | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'test') diff --git a/test/sys/test_socket.rs b/test/sys/test_socket.rs index 5f9c6fff..b3d983d3 100644 --- a/test/sys/test_socket.rs +++ b/test/sys/test_socket.rs @@ -64,6 +64,28 @@ pub fn test_path_to_sock_addr() { assert_eq!(addr.path(), Some(actual)); } +// Test getting/setting abstract addresses (without unix socket creation) +#[cfg(target_os = "linux")] +#[test] +pub fn test_abstract_uds_addr() { + let empty = String::new(); + let addr = UnixAddr::new_abstract(empty.as_bytes()).unwrap(); + assert_eq!(addr.as_abstract(), Some(empty.as_bytes())); + + let name = String::from("nix\0abstract\0test"); + let addr = UnixAddr::new_abstract(name.as_bytes()).unwrap(); + assert_eq!(addr.as_abstract(), Some(name.as_bytes())); + assert_eq!(addr.path(), None); + + // Internally, name is null-prefixed (abstract namespace) + let internal: &[u8] = unsafe { + slice::from_raw_parts(addr.0.sun_path.as_ptr() as *const u8, addr.1) + }; + let mut abstract_name = name.clone(); + abstract_name.insert(0, '\0'); + assert_eq!(internal, abstract_name.as_bytes()); +} + #[test] pub fn test_getsockname() { use nix::sys::socket::{socket, AddressFamily, SockType, SockFlag}; -- cgit v1.2.3