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Ship it!


Ship It!

- Gilbert Song


On Dec. 2, 2015, 10:28 p.m., Neil Conway wrote:
> 
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> https://reviews.apache.org/r/40435/
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> (Updated Dec. 2, 2015, 10:28 p.m.)
> 
> 
> Review request for mesos, Benjamin Bannier, Ben Mahler, Joris Van Remoortere, 
> Michael Park, and Niklas Nielsen.
> 
> 
> Bugs: MESOS-3939
>     https://issues.apache.org/jira/browse/MESOS-3939
> 
> 
> Repository: mesos
> 
> 
> Description
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> 
> The previous code took the address of a "struct sockaddr", and then cast the
> resulting pointer to "struct sockaddr_storage *". The alignment requirements 
> for
> "struct sockaddr_storage *" are more strict than for "struct sockaddr *", and
> hence this code produced undefined behavior per ubsan in GCC 5.2.
> 
> Along the way, tweak the code to use reinterpret_cast rather than a C-style
> cast, and not to unnecessarily cast-away constness.
> 
> MESOS-3939.
> 
> 
> Diffs
> -----
> 
>   3rdparty/libprocess/3rdparty/stout/include/stout/ip.hpp 
> 3e506e1e94ee32e3a19870e1fd72d9968c5f8e67 
> 
> Diff: https://reviews.apache.org/r/40435/diff/
> 
> 
> Testing
> -------
> 
> "make check" on Linux/AMD64 + GCC 5.2 + ubsan; without fix, ubsan reports an 
> error. With fix, ubsan does not report (this) error.
> 
> 
> Thanks,
> 
> Neil Conway
> 
>

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