On Fri, 12 Oct 2007 10:56:38 +0200
Andreas Henriksson <[EMAIL PROTECTED]> wrote:

> From: Alexander Wirt <[EMAIL PROTECTED]>
> 
> 
> Signed-off-by: Andreas Henriksson <[EMAIL PROTECTED]>
> ---
>  ip/iplink.c |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
> 
> diff --git a/ip/iplink.c b/ip/iplink.c
> index 4060845..da1f64e 100644
> --- a/ip/iplink.c
> +++ b/ip/iplink.c
> @@ -670,6 +670,10 @@ static int do_set(int argc, char **argv)
>       }
>  
>       if (newname && strcmp(dev, newname)) {
> +             if (strlen(newname) == 0) {
> +                 printf("\"\" is not valid device identifier\n");
> +                 return -1;
> +             }
>               if (do_changename(dev, newname) < 0)
>                       return -1;
>               dev = newname;

The kernel should already be preventing this?

-- 
Stephen Hemminger <[EMAIL PROTECTED]>
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