6cc0a764e0
Add abstract namespace support for Unix domain sockets
Hello! The other day I wanted to mess around with UDS in Rust and found that abstract namespaces ([unix(7)](https://man7.org/linux/man-pages/man7/unix.7.html)) on Linux still needed development. I took the approach of adding `_addr` specific public functions to reduce conflicts.
Feature name: `unix_socket_abstract`
Tracking issue: #85410
Further context: #42048
## Non-platform specific additions
`UnixListener::bind_addr(&SocketAddr) -> Result<UnixListener>`
`UnixStream::connect_addr(&SocketAddr) -> Result<()>`
`UnixDatagram::bind_addr(&SocketAddr) -> Result<UnixDatagram>`
`UnixDatagram::connect_addr(&SocketAddr) -> Result<()>`
`UnixDatagram::send_to_addr(&self, &[u8], &SocketAddr) -> Result<usize>`
## Platform-specific (Linux) additions
`SocketAddr::from_abstract_namespace(&[u8]) -> SocketAddr`
`SockerAddr::as_abstract_namespace() -> Option<&[u8]>`
## Example
```rust
#![feature(unix_socket_abstract)]
use std::os::unix::net::{UnixListener, SocketAddr};
fn main() -> std::io::Result<()> {
let addr = SocketAddr::from_abstract_namespace(b"namespace")?; // Linux only
let listener = match UnixListener::bind_addr(&addr) {
Ok(sock) => sock,
Err(err) => {
println!("Couldn't bind: {:?}", err);
return Err(err);
}
};
Ok(())
}
```
## Further Details
The main inspiration for the implementation came from the [nix-rust](https://github.com/nix-rust/nix/blob/master/src/sys/socket/addr.rs#L558) crate but there are also other [historical](
|
||
|---|---|---|
| .. | ||
| alloc | ||
| backtrace@cc89bb66f9 | ||
| core | ||
| panic_abort | ||
| panic_unwind | ||
| proc_macro | ||
| profiler_builtins | ||
| rtstartup | ||
| rustc-std-workspace-alloc | ||
| rustc-std-workspace-core | ||
| rustc-std-workspace-std | ||
| std | ||
| stdarch@5fdbc476af | ||
| test | ||
| unwind | ||