Fix unaligned access

[Andreas Schwab]

Ulrich Drepper <drepper@redhat.com> writes:

> And again: when and where is this a problem?

See a few lines below:

  cmsg->cmsg_level = SOL_SOCKET;

Since cmsg is just a pointer to msg.msg_control, this needs to be properly
aligned.  Same for the next three lines.

Andreas.

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Andreas Schwab, SuSE Labs, schwab@suse.de
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