[tor-bugs] #21796 [Core Tor/Tor]: missing evutil_secure_rng_add_bytes()

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#21796: missing evutil_secure_rng_add_bytes()
------------------------------+-----------------
     Reporter:  cypherpunks   |      Owner:
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
------------------------------+-----------------
 CC       src/common/compat_libevent.o
 src/common/compat_libevent.c:234:3: error: implicit declaration of
 function
       'evutil_secure_rng_add_bytes' is invalid in C99
       [-Werror,-Wimplicit-function-declaration]
   evutil_secure_rng_add_bytes(buf, 32);
   ^
 src/common/compat_libevent.c:234:3: note: did you mean
       'evutil_secure_rng_get_bytes'?
 /tmp/include/event2/util.h:808:6: note: 'evutil_secure_rng_get_bytes'
 declared
       here
 void evutil_secure_rng_get_bytes(void *buf, size_t n);
      ^
 src/common/compat_libevent.c:234:3: error: this function declaration is
 not a
       prototype [-Werror,-Wstrict-prototypes]
   evutil_secure_rng_add_bytes(buf, 32);
   ^
 2 errors generated.
 Makefile:4834: recipe for target 'src/common/compat_libevent.o' failed

 as of libevent git commit 6541168d7037457b8e5c51cc354f11bd94e618b6, the
 function evutil_secure_rng_add_bytes() is only exposed for platforms with
 arc4random_addrandom().

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21796>
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