RE: [PATCH] net: can: usb: peak_usb: pcan_usb_core.c: Cleaning up missing null-terminate in conjunction with strncpy

[David Laight]

From: Rickard Strandqvist
...
> Replacing strncpy with strlcpy to avoid strings that lacks null terminate.
...
> diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
> b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
> index 644e6ab..d4fe8ac 100644
> --- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
> +++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
> @@ -830,7 +830,7 @@ static void peak_usb_disconnect(struct usb_interface *intf)
>  		char name[IFNAMSIZ];
> 
>  		dev->state &= ~PCAN_USB_STATE_CONNECTED;
> -		strncpy(name, netdev->name, IFNAMSIZ);
> +		strlcpy(name, netdev->name, IFNAMSIZ);
> 
>  		unregister_netdev(netdev);
>  		free_candev(netdev);

Or:
	char name[sizeof netdev->name];
	memcpy(name, netdev->name, sizeof netdev->name);

	David



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