[tor-bugs] #32888 [Core Tor/Tor]: Log address config info when tor starts up

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#32888: Log address config info when tor starts up
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 Reporter:  teor                |          Owner:  (none)
     Type:  enhancement         |         Status:  new
 Priority:  Medium              |      Milestone:  Tor: unspecified
Component:  Core Tor/Tor        |        Version:
 Severity:  Normal              |     Resolution:
 Keywords:  ipv6, 043-deferred  |  Actual Points:
Parent ID:  #5940               |         Points:  1
 Reviewer:                      |        Sponsor:
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Comment (by c):

 I created a work-in-progress PR here:
 https://github.com/torproject/tor/pull/1910

 So far I've addressed most of IPv4 logging requirements except logging
 "the local network interface addresses". I assume this logic is handled at
 `get_interface_address6` which fetches a list of addresses returned by
 `getifaddrs(3)` and returns one address that can then be used by the
 caller. The issue here is, adding a `log_debug()` line inside of this
 function only seems to run through the loop when the code is built with
 `-O0` optimisation, meaning this loop may get skipped entirely during
 runtime at higher optimisation levels.

 My question is, for debugging purposes are we only worried about `-O0`
 level, or is there a better place to put this debug logging, or something
 else entirely?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32888#comment:8>
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