linux-kernel - Re: [PATCH 12/24] getgrent_r.3: Use sizeof() to get buffer size (instead of hardcoding macro name)

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Date:   Fri, 11 Sep 2020 09:17:36 +0200
From:   "Michael Kerrisk (man-pages)" <mtk.manpages@...il.com>
To:     Alejandro Colomar <colomar.6.4.3@...il.com>
Cc:     mtk.manpages@...il.com, linux-man@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 12/24] getgrent_r.3: Use sizeof() to get buffer size
 (instead of hardcoding macro name)

On 9/10/20 11:13 PM, Alejandro Colomar wrote:
> Signed-off-by: Alejandro Colomar <colomar.6.4.3@...il.com>

Thanks, Alex. Patch applied.

Cheers,

Michael

> ---
>  man3/getgrent_r.3 | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/man3/getgrent_r.3 b/man3/getgrent_r.3
> index 81d81a851..76deec370 100644
> --- a/man3/getgrent_r.3
> +++ b/man3/getgrent_r.3
> @@ -186,7 +186,7 @@ main(void)
>  
>      setgrent();
>      while (1) {
> -        i = getgrent_r(&grp, buf, BUFLEN, &grpp);
> +        i = getgrent_r(&grp, buf, sizeof(buf), &grpp);
>          if (i)
>              break;
>          printf("%s (%d):", grpp\->gr_name, grpp\->gr_gid);
> 


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/