Connection establishment with DNS name may create socket in the wrong namespace

[m-ronnblom]

If the application switches to a certain namespace, and attempts to establish a connection (e.g., calls xcm_connect()) with a XCM address that contains a DNS hostname, the socket creation may be delayed until the xcm_finish() call. (The socket can't be created until it's know if the name resolves to a IPv4 or IPv6 address.)

If the application at the time of xcm_finish() has switched to some other network namespace, the socket will be created in the wrong namespace (i.e., the current namespace and not the original xcm_connect() namespace). This behavior violates the API description.