Joan Bruguera
eff107736e
Since when handling a DNS over TLS stream, the TLS library can override the requested events through dnstls_events for handshake/shutdown purposes, obtaining the event flags through sd_event_source_get_io_events and checking for EPOLLIN or EPOLLOUT does not really tell us whether we want to read/write a packet. Instead, it could just be OpenSSL/GnuTLS doing something else. To make the logic more robust (and simpler), save the flags that tell us whether we want to read/write a packet, and check them instead of the IO flags. (& use uint32_t for the flags like in sd_event_source_set_io_events prototype)
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