Re: dd and closed stderr

[Eric Blake]

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According to Jim Meyering on 8/28/2009 6:50 AM:
> dd is relatively unusual in that it is required
> to write to stderr, even upon successful completion.
> At first glance, I don't see language in the spec saying
> what dd must do when writing to stderr fails.

I think we point to an overall requirement in POSIX that all write
failures should be diagnosed.  True, we can't diagnose it by writing an
error message to stderr (since stderr is closed), but POSIX is clear that
any attempt to diagnose an error must also cause non-zero status.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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