On 07.04.2021 22:47, Orgad Shaneh via Cygwin wrote:
Hi,
If a filesystem is mounted with noacl, calling chmod to add write
permissions after umasking this permission doesn't work. Demonstrated
with command-line and C++.
Did I miss something or is this a real bug? According to umask man, it
should only affect newly created files and directories, but I didn't
find anything that relates to chmod.
without ACL you can not expect the POSIX scheme to properly work.
see
https://cygwin.com/cygwin-ug-net/ntsec.html
to understand how Cygwin uses ACL to mimic POSIX premissions
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