Ed Schouten a8f77c1f66 Set read buffer size to multiple of sizeof(struct futx).
If the utmpx database gets updated while an application is reading it,
there is a chance the reading application processes partially
overwritten entries. To solve this, make sure we always read a multiple
of sizeof(struct futx) at a time.

MFC after:	2 weeks
2012-02-11 11:11:13 +00:00
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2011-06-18 13:56:33 +00:00
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