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[tor-bugs] #32315 [Core Tor/Tor]: Can't perform reverse DNS lookup for a (binary) IPv6 address

#32315: Can't perform reverse DNS lookup for a (binary) IPv6 address
--------------------------+------------------------------
 Reporter:  liberat       |          Owner:  (none)
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Component:  Core Tor/Tor
  Version:  Tor: 0.4.1.6  |       Severity:  Normal
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
--------------------------+------------------------------
 Tor provides the "RESOLVE_PTR" (0xF1) command as an extension to the
 SOCKS5 protocol, which can in theory be used to perform a reverse DNS
 lookup of an IPv4 or IPv6 address.

 As with other SOCKS5 commands, this command takes an argument which can
 either be a binary IPv4 or IPv6 address, or an ASCII string.

 Somewhat contrary to ticket #32314, this command works for IPv6 addresses
 only if the address is specified as an ASCII string (address type 3) with
 no brackets.  If the address is specified in binary (address type 4), or
 as a string enclosed in brackets, Tor will reject it.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32315>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

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