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5dcdc00b93
- isc_nm_tcpdnsconnect() sets up up an outgoing TCP DNS connection. - isc_nm_tcpconnect(), _udpconnect() and _tcpdnsconnect() now take a timeout argument to ensure connections time out and are correctly cleaned up on failure. - isc_nm_read() now supports UDP; it reads a single datagram and then stops until the next time it's called. - isc_nm_cancelread() now runs asynchronously to prevent assertion failure if reading is interrupted by a non-network thread (e.g. a timeout). - isc_nm_cancelread() can now apply to UDP sockets. - added shim code to support UDP connection in versions of libuv prior to 1.27, when uv_udp_connect() was added all these functions will be used to support outgoing queries in dig, xfrin, dispatch, etc.