[tor-bugs] #11633 [Tor]: Quench a few warnings found with gcc-4.2 and clang

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#11633: Quench a few warnings found with gcc-4.2 and clang
--------------------+------------------------------------
 Reporter:  _x3j11  |          Owner:
     Type:  defect  |         Status:  new
 Priority:  normal  |      Milestone:  Tor: 0.2.5.x-final
Component:  Tor     |        Version:
 Keywords:          |  Actual Points:
Parent ID:          |         Points:
--------------------+------------------------------------
 On running configure --enable-gcc-warnings with gcc-4.2 on OpenBSD, as
 well as clang 3.3, has picked up a few things:
 * gcc-4.2 complains about discarding constness with TO_ORIGIN_CIRCUIT and
 TO_OR_CIRCUIT.
 * clang complains with -Wshorten-64-to-32 about implicit conversions
 between time_t and long, and OpenBSD has time_t as an int32_t.

 The attached patches add a const version of TO_ORIGIN_CIRCUIT and
 TO_OR_CIRCUIT, and add explicit casts between long and time_t.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/11633>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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