On 03/31/2017 07:04 AM, Max Reitz wrote:
> If the user has explicitly specified a block driver and thus a protocol,
> we have to make sure the URL's protocol prefix matches. Otherwise the
> latter will silently override the former which might catch some users by
> surprise.
> 
> Signed-off-by: Max Reitz <mre...@redhat.com>
> ---
>  block/curl.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/block/curl.c b/block/curl.c
> index 34dbd335f4..2708d57c2f 100644
> --- a/block/curl.c
> +++ b/block/curl.c
> @@ -659,6 +659,7 @@ static int curl_open(BlockDriverState *bs, QDict 
> *options, int flags,
>      const char *cookie;
>      double d;
>      const char *secretid;
> +    const char *protocol_delimiter;
>  
>      static int inited = 0;
>  
> @@ -700,6 +701,15 @@ static int curl_open(BlockDriverState *bs, QDict 
> *options, int flags,
>          goto out_noclean;
>      }
>  
> +    if (!strstart(file, bs->drv->protocol_name, &protocol_delimiter) ||
> +        !strstart(protocol_delimiter, "://", NULL))

Do we care about case-insensitive comparisons here? But I'm fine with
case-sensitive for now, until we have an actual report of someone that
it breaks.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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