net/linux_kernel: add unnamed Unix-domain addresses #1240
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I think it would be useful to have unnamed Unix-domain addressed in rustix. This PR adds the methods
SocketAddrUnix::new_unnamed()
andSocketAddrUnix::is_unnamed()
.In C it is possible to have an unnamed Unix-domain socket name, when you set
len
= 2 =sizeof(c::socklen_t)
. Then the kernel will choose an abstract Unix-domain name for you when you bind the socket. The same feature present also in Python, when you callsock.bind("")
.Invoking
SocketAddrUnix::new_abstract_name(b"")
gives you an empty abstract socket address, i.e.SocketAddrUnix::len == 3
. The kernel will keep this empty abstract name on callingbind()
.