* UNIX is a trademark of Bell Laboratories.
* The type of the gidset array in getgroups and setgroups remains integer for compatibility with 4.2BSD. It may change to gid_t in future releases.
** This section represents the interface planned for later releases of the system. Of the calls described in this section, only sbrk and getpagesize are included in 4.3BSD.
*** The current design does not allow a process to specify the location of swap space. In the future we may define an additional mapping type, MAP_SWAP, in which the file descriptor argument specifies a file or device to which swapping should be done.
** The facilities described in this section are not included in 4.3BSD.
** Support for mapping files is not included in the 4.3 release.
** The portal call is not implemented in 4.3BSD.
** 4.3BSD supports socketpair creation only in the ``unix'' communication domain.
** The 4.3BSD implementation of the UNIX domain embeds bound sockets in the UNIX file system name space; this may change in future releases.
** The control interface described here is an internal interface only in 4.3BSD. Future releases will probably use a modified interface based on currently-proposed standards.
** Not supported in 4.3BSD.
** Not supported in 4.3BSD.