On Tue, 2009-10-20 at 14:52 -0400, Bill Cole wrote:
> > And also: I think (guess) that behavior is required by POSIX, but it
> > would be nice if someone could verify that. :) The behavior being:
> > seeking in a fd is affects all processes that have the same fd open.
> > (Simple IPC, yay.)
> 
> As I read them, the various man pages for dup() confirm that. In addition to 
> those man pages' statements about standards compliance, the fact that dup() 
> is in 4BSD's unistd.h is also a strong clue. When looking for this sort of 
> info, an invaluable resource is the man page archive at 
> http://www.freebsd.org/cgi/man.cgi which has man collections from many 
> different branches of the Unix family tree going back to Unix 7th edition 
> and BSD 2.8.

Thanks. I've been using man.freebsd.org to look up FreeBSD's man pages,
but I hadn't noticed it has a lot more.

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