check external link ownership

Hi all,

I'm trying to check wether an object (group) is an external link or not.
I want to reject some transitive modification once the files are read.

It looks like object file number (struct H5O_info_t.fileno) is always the top file which 'hides' the actual file id.

Is there any way to find out if an object (once you have its hid_t) comes from an external link ?

-MP-

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