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authorRich Felker <dalias@aerifal.cx>2012-07-12 21:37:54 -0400
committerRich Felker <dalias@aerifal.cx>2012-07-12 21:37:54 -0400
commit96107564e2eabbc13800fe7a7d930b67216d0805 (patch)
treec46507f195ab69f3ffacfdeca118e337e097849e /README
parent90e123f4a810d17c6bd8c2102939f6416481427e (diff)
downloadmusl-96107564e2eabbc13800fe7a7d930b67216d0805.tar.gz
workaround another sendmsg kernel bug on 64-bit machines
the kernel wrongly expects the cmsg length field to be size_t instead of socklen_t. in order to work around the issue, we have to impose a length limit and copy to a local buffer. the length limit should be more than sufficient for any real-world use; these headers are only used for passing file descriptors and permissions between processes over unix sockets.
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