MC no longer working with cygwin 3.1.x
Ken Brown
kbrown@cornell.edu
Sat Dec 21 21:18:00 GMT 2019
On 12/21/2019 2:26 PM, Corinna Vinschen wrote:
> Hi Ken,
>
> On Dec 21 15:48, Ken Brown wrote:
>> [Moving from cygwin to cygwin-developers.]
>>
>> Hi Corinna,
>>
>> On 12/19/2019 4:24 AM, Corinna Vinschen wrote:
>>> Ken, btw., we should add a PIPE_REJECT_REMOTE_CLIENTS flag, just for
>>> paranoia.
>>
>> Should this be FILE_PIPE_REJECT_REMOTE_CLIENTS? It seems that most of the flags
>> for NtCreateNamedPipeFile start with "FILE_".
>
> Right, it's FILE_PIPE_REJECT_REMOTE_CLIENTS, sorry about that.
>
>> And which argument of NtCreateNamedPipeFile should that flag be in? None of
>> them seem quite right to me. Or is there some other function that should be
>> called after NtCreateNamedPipeFile to set that flag?
>
> AFAICS it's a flag added to the message type, i.e.
>
> FILE_PIPE_MESSAGE_TYPE | FILE_PIPE_REJECT_REMOTE_CLIENTS
OK, I'll give that a try. I wouldn't have guessed that from the documentation,
which suggests that the pipe type argument is BOOLEAN and is supposed to be
FILE_PIPE_MESSAGE_TYPE == 1 or FILE_PIPE_BYTE_STREAM_MODE == 0. On the other
hand, the defines in /usr/include/w32api/ddk/ntifs.h show that
FILE_PIPE_TYPE_VALID_MASK == FILE_PIPE_MESSAGE_TYPE |
FILE_PIPE_REJECT_REMOTE_CLIENTS,
which is consistent with what you said.
>> Last question: The only documentation I found for NtCreateNamedPipeFile is here:
>>
>> http://undocumented.ntinternals.net/index.html?page=UserMode%2FUndocumented%20Functions%2FNT%20Objects%2FFile%2FNtCreateFile.html
>>
>> Is there anything better?
>
> Not that I'm aware of. There's only this and the Reactos source.
Thanks, I didn't know about Reactos.
Ken
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