From mboxrd@z Thu Jan 1 00:00:00 1970 From: loris@draios.com (Loris Degioanni) Date: Mon, 18 Aug 2014 17:46:16 -0700 Subject: fd type from number In-Reply-To: References: Message-ID: <53F29E58.5060202@draios.com> To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org 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