Re: [patch] getpw.3: Function could return -1 and set errno to zero.

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On 01/16/2015 01:38 AM, Michael Kerrisk (man-pages) wrote:
> This patch was broken. (I think you must have prepared a preceding
> patch that you did not send.

Sorry for that, I had a busy tree and was trying to push out all the
temporary patches I had pending.

> I take your point, but I think a little more could be said. I instead
> applied the patch below. Okay?

Yes, modulo what I expect is a typo. Comments inline.

> Thanks,
> 
> Michael
> 
> diff --git a/man3/getpw.3 b/man3/getpw.3
> index cf7eb69..9f2732f 100644
> --- a/man3/getpw.3
> +++ b/man3/getpw.3
> @@ -75,16 +75,26 @@ The
>  function returns 0 on success; on error, it returns \-1, and
>  .I errno
>  is set to indicate the error.
> +
> +If
> +.I uid
> +is not found in the password database,
> +.BR getpw ()
> +returns 0, sets

Should be "returns -1" not "returns 0".

> +.I errno
> +to 0, and leaves
> +.I buf
> +unchanged.
>  .SH ERRORS
>  .TP
> +.BR 0 " or " ENOENT
> +No user corresponding to
> +.IR uid .
> +.TP
>  .B EINVAL
>  .I buf
>  is NULL.
>  .TP
> -.B ENOENT
> -No user corresponding to
> -.IR uid .
> -.TP
>  .B ENOMEM
>  Insufficient memory to allocate
>  .I passwd
> 

OK with that change.

Cheers,
Carlos.
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