[tor-bugs] #30889 [Core Tor/Tor]: Eliminate use of lower-level control protocol output functions

[Tor Bug Tracker & Wiki]

#30889: Eliminate use of lower-level control protocol output functions
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     Reporter:  catalyst       |      Owner:  catalyst
         Type:  defect         |     Status:  assigned
     Priority:  Medium         |  Milestone:  Tor: 0.4.2.x-final
    Component:  Core Tor/Tor   |    Version:
     Severity:  Normal         |   Keywords:
Actual Points:                 |  Parent ID:  #29210
       Points:  3              |   Reviewer:
      Sponsor:  Sponsor31-can  |
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 Continuing the work of #30007, refactor more control.c stuff to stop using
 lower-level control protocol output functions like
 `connection_write_str_to_buf()`, `connection_printf_to_buf()`, and
 `connection_buf_add()`.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30889>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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