Re: [PATCH 5/8] unix-stream-server: add st_dev and st_mode to socket stolen checks

> From: Jeff Hostetler <jeffhost@microsoft.com>
>
> When checking to see if our unix domain socket was stolen, also check
> whether the st.st_dev and st.st_mode fields changed (in addition to
> the st.st_ino field).
>
> The inode by itself is not unique; it is only unique on a given
> device.
>
> Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
> ---
>  unix-stream-server.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/unix-stream-server.c b/unix-stream-server.c
> index f00298ca7ec3..366ece69306b 100644
> --- a/unix-stream-server.c
> +++ b/unix-stream-server.c
> @@ -120,8 +120,11 @@ int unix_stream_server__was_stolen(
>
>  	if (st_now.st_ino != server_socket->st_socket.st_ino)
>  		return 1;
> +	if (st_now.st_dev != server_socket->st_socket.st_dev)
> +		return 1;
>
> -	/* We might also consider the ctime on some platforms. */

> +	if (!S_ISSOCK(st_now.st_mode))
> +		return 1;
>
>  	return 0;
>  }
>