Re: [Qemu-devel] [PATCH v3 5/5] block: Prevent /dev/fd/X filename from being detected as floppy

[Luiz Capitulino]

On Thu, 14 Jun 2012 11:55:05 -0400
Corey Bryant <address@hidden> wrote:

> Reported-by: Kevin Wolf <address@hidden>
> Reviewed-by: Paolo Bonzini <address@hidden>
> Signed-off-by: Corey Bryant <address@hidden>

This too, would be better to move before the /dev/fd/X feature so that we
avoid having introducing a bug and fixing it in a later commit. But again,
it's not a huge issue.

> ---
> v3:
>  -This patch is new in v3.  It was previously submitted on its
>   own, and is now being included in this series.
> 
>  block/raw-posix.c |    4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/block/raw-posix.c b/block/raw-posix.c
> index d8eff2f..68886cd 100644
> --- a/block/raw-posix.c
> +++ b/block/raw-posix.c
> @@ -946,9 +946,11 @@ static int floppy_probe_device(const char *filename)
>      int prio = 0;
>      struct floppy_struct fdparam;
>      struct stat st;
> +    const char *p;
>  
> -    if (strstart(filename, "/dev/fd", NULL))
> +    if (strstart(filename, "/dev/fd", &p) && p[0] != '/') {
>          prio = 50;
> +    }
>  
>      fd = qemu_open(filename, O_RDONLY | O_NONBLOCK);
>      if (fd < 0) {