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Re: [tor-bugs] #24734 [Core Tor/Tor]: Remove the return value of fascist_firewall_choose_address_node()



#24734: Remove the return value of fascist_firewall_choose_address_node()
-------------------------------------------------+-------------------------
 Reporter:  teor                                 |          Owner:  neel
     Type:  defect                               |         Status:
                                                 |  merge_ready
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.4.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  ipv6, tor-relay,                     |  Actual Points:
  034-triage-20180328, 034-removed-20180328      |
Parent ID:  #24403                               |         Points:  0.5
 Reviewer:  mikeperry                            |        Sponsor:
-------------------------------------------------+-------------------------
Changes (by mikeperry):

 * status:  needs_review => merge_ready


Comment:

 Ok I took Neel's patches and put them in a branch. I also noticed a couple
 logic issues:
 1. Since we're getting rid of the return value, and there was some code
 relying on it that was changed to use tor_add_port_is_valid_ap(), we need
 to zero the ap pointer before any early return from these functions for
 those correctness checks to still be valid. I moved the zeroing code up in
 a fixup commit for this. I double-checked that tor_addr_port_is_valid_ap()
 rejects these zeroed addrs. It does, if they are also not AF_INET.
 2. There were a couple of places that lacked a tor_assert(ap). So I added
 them.

 I added fixup commits for these.

 Neel - be sure to consider calling, surrounding, and future code when you
 make changes like this.

 I think this is ready to go:
 https://oniongit.eu/mikeperry/tor/commits/bug24734

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24734#comment:18>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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