Re: Use consistent errno for read(2) failure on directories

To: tech-kern%netbsd.org@localhost
Subject: Re: Use consistent errno for read(2) failure on directories
From: christos%astron.com@localhost (Christos Zoulas)
Date: Sat, 10 Dec 2011 16:42:27 +0000 (UTC)

In article <20111209083354.GA2999%lynche.sis.pasteur.fr@localhost>,
Nicolas Joly  <njoly%pasteur.fr@localhost> wrote:
>-=-=-=-=-=-
>
>
>Hi,
>
>According to the online OpenGroup specification for read(2) available
>at [1], read(2) on directories is implementation dependant. If
>unsupported, it shall fail with EISDIR.
>
>Not all our file systems comply, and return random errno values in
>this case (mostly EINVAL or ENOTSUP).
>
>The attached patch fix some of them (the ones i have access to),
>adjust the man page accordingly and add a small testcase to exercize
>this.
>
>Is it ok to apply ?
>Thanks.

Looks good to me.

christos

References:
- Use consistent errno for read(2) failure on directories
  - From: Nicolas Joly

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