au_fcntl_cmd(3) on FreeBSD
The text 2079e25402e4, as FreeBSD 9.1-RELEASE, FreeBSD 9.0-RELEASE, FreeBSD 8.4-RELEASE, FreeBSD 8.3-RELEASE, FreeBSD 8.2-RELEASE, FreeBSD 8.1-RELEASE, FreeBSD 8.0-RELEASE shipped it.
convert between BSM and local fcntl(2) command values