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Re: [libvirt] [PATCH] Optimization of the check for valid interface name



On 04/02/2010 12:11 PM, Stefan Berger wrote:
> The attached patch optimizes the validation of the name of an interface.
> 
> Signed-off-by: Stefan Berger
> 
> Index: libvirt-acl/src/conf/domain_conf.c
> ===================================================================
> --- libvirt-acl.orig/src/conf/domain_conf.c
> +++ libvirt-acl/src/conf/domain_conf.c
> @@ -1795,7 +1795,7 @@ cleanup:
>  
>  static bool
>  isValidIfname(const char *ifname) {
> -    return (strspn(ifname, VALID_IFNAME_CHARS) == strlen(ifname));
> +    return ifname[strspn(ifname, VALID_IFNAME_CHARS)] == 0;

ACK.

-- 
Eric Blake   eblake redhat com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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