1SOCKFD_LOOKUP(9)               Linux Networking               SOCKFD_LOOKUP(9)
2
3
4

NAME

6       sockfd_lookup - Go from a file number to its socket slot
7

SYNOPSIS

9       struct socket * sockfd_lookup(int fd, int * err);
10

ARGUMENTS

12       fd
13           file handle
14
15       err
16           pointer to an error code return
17

DESCRIPTION

19       The file handle passed in is locked and the socket it is bound too is
20       returned. If an error occurs the err pointer is overwritten with a
21       negative errno code and NULL is returned. The function checks for both
22       invalid handles and passing a handle which is not a socket.
23
24       On a success the socket object pointer is returned.
25
27Kernel Hackers Manual 2.6.       November 2011                SOCKFD_LOOKUP(9)
Impressum