[PATCH] Cygwin: FIFO: use FILE_PIPE_REJECT_REMOTE_CLIENTS flag

[Corinna Vinschen]

On Dec 21 23:01, Ken Brown wrote:
> Add that flag to the pipe type argument when creating the Windows
> named pipe.  And add a definition of that flag to ntdll.h (copied from
> /usr/include/w32api/ddk/ntifs.h).
> ---
>  winsup/cygwin/fhandler_fifo.cc | 3 ++-
>  winsup/cygwin/ntdll.h          | 3 ++-
>  2 files changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/winsup/cygwin/fhandler_fifo.cc b/winsup/cygwin/fhandler_fifo.cc
> index 92797ce60..fd8223000 100644
> --- a/winsup/cygwin/fhandler_fifo.cc
> +++ b/winsup/cygwin/fhandler_fifo.cc
> @@ -184,7 +184,8 @@ fhandler_fifo::create_pipe_instance (bool first)
>    timeout.QuadPart = -500000;
>    status = NtCreateNamedPipeFile (&ph, access, &attr, &io, sharing,
>  				  first ? FILE_CREATE : FILE_OPEN, 0,
> -				  FILE_PIPE_MESSAGE_TYPE,
> +				  FILE_PIPE_MESSAGE_TYPE
> +				    | FILE_PIPE_REJECT_REMOTE_CLIENTS,
>  				  FILE_PIPE_MESSAGE_MODE,
>  				  nonblocking, max_instances,
>  				  DEFAULT_PIPEBUFSIZE, DEFAULT_PIPEBUFSIZE,
> diff --git a/winsup/cygwin/ntdll.h b/winsup/cygwin/ntdll.h
> index e19cc8ab5..1c07d0255 100644
> --- a/winsup/cygwin/ntdll.h
> +++ b/winsup/cygwin/ntdll.h
> @@ -557,7 +557,8 @@ enum
>  enum
>  {
>    FILE_PIPE_BYTE_STREAM_TYPE = 0,
> -  FILE_PIPE_MESSAGE_TYPE = 1
> +  FILE_PIPE_MESSAGE_TYPE = 1,
> +  FILE_PIPE_REJECT_REMOTE_CLIENTS = 2
>  };
>  
>  typedef struct _FILE_PIPE_PEEK_BUFFER {
> -- 
> 2.21.0

Thanks, please push.


Corinna

-- 
Corinna Vinschen
Cygwin Maintainer
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