f_getfd


>>-f_getfd--fd-------------------------------------------------><

Function

f_getfd invokes the fcntl callable service to get the file descriptor flags for a file.

Parameters

fd: The file descriptor (a number) for the file.

Usage notes

The file descriptor flags are returned in RETVAL. The only POSIX-defined flag is FCTLCLOEXEC. To determine if this flag is set, use this expression: (retval//2)=1

Example

To get the file descriptor flags for file descriptor 0:

"f_getfd 0"