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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:
                                                 |  needs_revision
 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:                                       |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by teor):

 In the first commit, when you initialise ap:
 * please assert that ap is not NULL before initialising it
 * please do the initialisation first, before any of the return statements
 in the function. Otherwise ap can be returned uninitialised.
 * please use the address functions to do the initialisation:
 `tor_addr_make_null(&ap->addr, AF_UNSPEC);` for functions that can return
 IPv4 or IPv6, and `tor_addr_make_null(&ap->addr, AF_INET);` for functions
 that can only return IPv4.

 In the second commit, please also fix comment lines that aren't true any
 more:
 {{{
 choose_address returns 1 on success, but get_prim_orport returns 0.
 }}}

 {{{
 If neither address is chosen, return 0, else return 1.
 }}}

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24734#comment:9>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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