02-24-2012
I recall a user complaining that a change to the linux kernel reduced the maximum read size to 4 gigabytes. He thought this a large inconvenience for some reason. So whatever the maximum read size is, it's going to be far larger than whatever you're doing...
Of course, it was never safe for him to assume that read() did it all in one go in the first place. Lots of things can happen. You have done correctly by checking read's return value here.
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