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Re: [tor-bugs] #6465 [Tor]: Build abstraction layer around TLS



#6465: Build abstraction layer around TLS
-----------------------+----------------------------------------------------
 Reporter:  andrea     |          Owner:  andrea            
     Type:  project    |         Status:  needs_review      
 Priority:  major      |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor        |        Version:  Tor: unspecified  
 Keywords:  tor-relay  |         Parent:                    
   Points:             |   Actualpoints:                    
-----------------------+----------------------------------------------------

Comment(by sjmurdoch):

 Minor comment on 47adaddf8d966b4d3cbca4155d1f56df5572c5d5 of
 bug6465_draft_2:

 Under LLVM 4.2.1 pretending to be GCC on MacOS X 10.7.5, the build of Tor
 using the ./configure option --enable-gcc-warnings fails with:

 {{{
 make  all-am
   CC       src/or/channel.o
 cc1: warnings being treated as errors
 src/or/channel.c: In function âchannel_flush_some_cellsâ:
 src/or/channel.c:1924: warning: implicit conversion shortens 64-bit value
 into a 32-bit value
 make[1]: *** [src/or/channel.o] Error 1
 make: *** [all] Error 2
 }}}


 Presumably this is because ssize_t is 64 bit and int is 32 bit. The
 following change makes it compile, but is likely not the correct solution:
 {{{
 diff --git a/src/or/channel.c b/src/or/channel.c
 index 3e29717..985ee8a 100644
 --- a/src/or/channel.c
 +++ b/src/or/channel.c
 @@ -1921,7 +1921,7 @@ channel_flush_some_cells(channel_t *chan, ssize_t
 num_cells)
        num_cells_from_circs =
          channel_flush_from_first_active_circuit(chan,
              (unlimited ? MAX_CELLS_TO_GET_FROM_CIRCUITS_FOR_UNLIMITED :
 -                         (num_cells - flushed)));
 +                         ((int)num_cells - (int)flushed)));

        /* If it claims we got some, process the queue again */
        if (num_cells_from_circs > 0) {
 }}}

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6465#comment:44>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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