Files
bind9/lib/isc
Ondřej Surý b21f507c0a Handle the transient TCP connect() failures on FreeBSD
On FreeBSD (and perhaps other *BSD) systems, the TCP connect() call (via
uv_tcp_connect()) can fail with transient UV_EADDRINUSE error.  The UDP
code already handles this by trying three times (is a charm) before
giving up.  Add a code for the TCP, TCPDNS and TLSDNS layers to also try
three times before giving up by calling uv_tcp_connect() from the
callback two more time on UV_EADDRINUSE error.

Additionally, stop the timer only if we succeed or on hard error via
isc__nm_failed_connect_cb().
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