fd type from number

Loris Degioanni loris at draios.com
Mon Aug 18 20:46:16 EDT 2014


I'm looking for an efficient way to determine the type of an fd (file, 
socket...) given its number, from a kernel module.
The closest thing I found by looking at the kernel sources is 
sockfd_lookup(), which works but is limited to telling me if the fd is a 
socket or not.

Is there something else I can look at?

Thank you in advance,
Loris



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