How to get file descriptor permissions?

[Mike]

Hi,
I have a file descriptor of an open file and I would like to know
through C/C++ API how to query its read/write/exec permissions.
Thanks.

 

[Ivan Vecerina]

I have a file descriptor of an open file and I would like to know
through C/C++ API how to query its read/write/exec permissions.

File permissions are out of the scope of the C++ standard.
You need to use platform-specific APIs to access these
(and this is OT in this forum).


Ivan

 

[Matthias Kaeppler]

Hi,
I have a file descriptor of an open file and I would like to know
through C/C++ API how to query its read/write/exec permissions.
Thanks.

But to answer your question: Look up chapter "14.9 File Attributes" in
your glibc-documentation. It explains everything.