[fpc-devel] Default value for "Rights" in TFileStream.Create

[Michael Van Canneyt]

On Fri, 19 Dec 2025, Bart via fpc-devel wrote:

> Hi,
>
> Just wondering.
> If you call TFileStream.Create(aFileName, aFileMode) it calls
> TFileStream.Create(aFileName, aFileMode, 438).
> 438 (octal 666) tramslates to -rw-rw-rw-
>
> If I create a file on my linux machine (using touch or cat) then
> rights will be -rw-rw-r--, which is equivalent to octal 664 (decimal
> 436).

It actually depends on the setting of umask:

https://askubuntu.com/questions/44542/what-is-umask-and-how-does-it-work

>
> So, that just made me wonder why the choice for octal 666?
> Notice that I'm a linux novice.

As you see in the page above, the default is 666.

Michael.