I wrote a test case demonstrate the problem at the Cygwin level.
It is almost only one line:
open("haha", O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR); //
remember to unlink the file "haha" first
On Windows + Cygwin, this program creates a file in 0600 mode:
Administrator@short ~
$ stat haha
File: ‘haha’
Size: 0 Blocks: 0 IO Block: 65536 regular empty file
Device: 903b0bf0h/2419788784d Inode: 91760842407778598 Links: 1
Access: (0600/-rw-------) Uid: (197108/Administrator) Gid: (197121/ None)
Access: 2016-02-19 10:34:19.917782200 +0800
Modify: 2016-02-19 10:34:19.917782200 +0800
Change: 2016-02-19 10:34:19.917782200 +0800
Birth: 2016-02-19 09:35:08.796316900 +0800
Administrator@short ~
$ getfacl.exe haha
# file: haha
# owner: Administrator
# group: None
user::rw-
group::---
other:---
On Wine + Cygwin, this program creates a file in 0505 mode:
fracting@fracting-ThinkPad-Edge-E431 ~
$ stat haha
File: ‘haha’
Size: 0 Blocks: 0 IO Block: 65536 regular empty file
Device: 4fdc55f7h/1339839991d Inode: 36447801 Links: 1
Access: (0505/-r-x---r-x) Uid: (197608/fracting) Gid: (197121/ None)
Access: 2016-02-19 10:32:36.828596900 +0800
Modify: 2016-02-19 10:32:31.820695700 +0800
Change: 2016-02-19 10:32:31.820695700 +0800
Birth: 2016-02-19 10:32:31.820695700 +0800
fracting@fracting-ThinkPad-Edge-E431 ~
$ getfacl.exe haha
# file: haha
# owner: fracting
# group: None
user::r-x
group::---
group:SYSTEM:rwx
mask:r-x
other:r-x
--
Problem reports: http://cygwin.com/problems.html
FAQ: http://cygwin.com/faq/
Documentation: http://cygwin.com/docs.html
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
