On 5/28/2020 4:12 AM, Дмитрий Есарев via Cygwin wrote:
Hi, all
When i ran cygwin 2.x, i used mkfifo -m 0600 file to create a named pipe with
no user and group permissions.
in the latest cygwin the above command creates device with 0644 permissions.
And i cant drop it to 0600:
cygcheck.exe -V
cygcheck (cygwin) 3.1.4
$ umask 0077
$ touch somefile; ls -l somefile
-rw------- 1 admin absent 0 may 26 18:15 somefile
$ mkfifo -m 0600 somefifo; ls -l somefifo
prw-r--r-- 1 admin absent 0 may 26 18:16 somefifo
$ chmod 600 somefifo; ls -l somefifo
prw-r--r-- 1 admin absent 0 may 26 18:16 somefifo
In old-good cygwin 2.x the command works as expected:
$ cygcheck.exe -V
cygcheck (cygwin) 2.9.0
$ umask
0022
$ mkfifo -m 0600 somefifo; ls -l somefifo
prw------- 1 builduser Domain Users 0 May 26 18:21 somefifo
Thanks for the report. The problem isn't with mkfifo, it's with the permission
information reported by ls. I did a bisection of the Cygwin development repo
and found that the regression was introduced by the following commit:
commit f36262d56ac78f04de147746ce4a85c6155e4a23
Author: Corinna Vinschen <cori...@vinschen.de>
Date: Wed Jan 29 15:14:05 2020 +0100
Cygwin: stat: fix st_mode of fifos
I'll take a look if Corinna doesn't get to it first.
Ken
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