[tor-bugs] #32994 [Core Tor/Tor]: Get all flag defaults from port_cfg_new()

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#32994: Get all flag defaults from port_cfg_new()
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 Reporter:  teor                                 |          Owner:
                                                 |  MrSquanchee
     Type:  defect                               |         Status:
                                                 |  assigned
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  unspecified
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  technical-debt, tor-client, easy,    |  Actual Points:
  intro, outreachy-ipv6                          |
Parent ID:                                       |         Points:  1
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by MrSquanchee):

 I changed the code of `port_parse_config()` successfully accommodating a
 `port_config_t` object.
 But still I can't see a necessity of a default `port_config_t` in
 `connection_listener_new()` because it's just memcopying in ln1500
 https://gitweb.torproject.org/tor.git/tree/src/core/mainloop/connection.c#n1500
 and setting the traffic values conditionally here at
 https://gitweb.torproject.org/tor.git/tree/src/core/mainloop/connection.c#n1517
 . So it doesn't seem nice to me to give them defaults without checking the
 condition at line 1517. Suggest me if I should send a PR on github.com.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32994#comment:10>
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