[tor-bugs] #21816 [Core Tor/Tor]: Add support for Pluggable Transports 2.0

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#21816: Add support for Pluggable Transports 2.0
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 Reporter:  chelseakomlo                         |          Owner:
                                                 |  dasyatid1
     Type:  enhancement                          |         Status:
                                                 |  needs_review
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.3.x-final
Component:  Core Tor/Tor                         |        Version:  Tor:
                                                 |  unspecified
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-client, tor-pt, tor-bridge,      |  Actual Points:
  design, pt2, review-group-23                   |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by dcf):

 Here's a link to view the diff resulting from dasyatid's patch:
   https://bitbucket.org/DasyatidPrime/tor-
 rtt2017-21816/branches/compare/rtt2017%0Dmaster#diff

 One of the changes in the
 [https://operatorfoundation.org/PluggableTransportSpecification-v2-Draft3.pdf
 PT 2.0 spec draft 3] is that error responses such as ENV-ERROR, VERSION-
 ERROR, etc. are now written to stderr, not stdout. But I don't see
 anything the patch series that accounts for that?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21816#comment:12>
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