SOCKFD_LOOKUP(9) Linux Networking SOCKFD_LOOKUP(9)
NAME
sockfd_lookup - Go from a file number to its socket slot
SYNOPSIS
struct socket * sockfd_lookup(int fd, int * err);
ARGUMENTS
fd
file handle
err
pointer to an error code return
DESCRIPTION
The file handle passed in is locked and the socket it is bound too is returned. If an error occurs the err pointer is overwritten with a
negative errno code and NULL is returned. The function checks for both invalid handles and passing a handle which is not a socket.
On a success the socket object pointer is returned.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 SOCKFD_LOOKUP(9)
