9f15c4d08b
wasi: implement `sock_accept` and enable networking With the addition of `sock_accept()` to snapshot1, simple networking via a passed `TcpListener` is possible. This PR implements the basics to make a simple server work. See also: * [wasmtime tracking issue](https://github.com/bytecodealliance/wasmtime/issues/3730) * [wasmtime PR](https://github.com/bytecodealliance/wasmtime/pull/3711) TODO: * [ ] Discussion of `SocketAddr` return value for `::accept()` ```rust Ok(( TcpStream::from_inner(unsafe { Socket::from_raw_fd(fd as _) }), // WASI has no concept of SocketAddr yet // return an unspecified IPv4Addr SocketAddr::new(Ipv4Addr::UNSPECIFIED.into(), 0), )) ```