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 2.6. November 2013 SOCKFD_LOOKUP(9)[top]
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