The applications bundled in this package were downloaded from
https://xorg.freedesktop.org/releases/individual/app/

It contains the rstart, smproxy and xsm applications.

rstart:
  Copyright (c) 1993 Quarterdeck Office Systems

  Permission to use, copy, modify, distribute, and sell this software
  and software and its documentation for any purpose is hereby granted
  without fee, provided that the above copyright notice appear in all
  copies and that both that copyright notice and this permission
  notice appear in supporting documentation, and that the name
  Quarterdeck Office Systems, Inc. not be used in advertising or
  publicity pertaining to distribution of this software without
  specific, written prior permission.

  THIS SOFTWARE IS PROVIDED `AS-IS'.  QUARTERDECK OFFICE SYSTEMS,
  INC., DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  INCLUDING WITHOUT LIMITATION ALL IMPLIED WARRANTIES OF
  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
  NONINFRINGEMENT.  IN NO EVENT SHALL QUARTERDECK OFFICE SYSTEMS,
  INC., BE LIABLE FOR ANY DAMAGES WHATSOEVER, INCLUDING SPECIAL,
  INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING LOSS OF USE, DATA, OR
  PROFITS, EVEN IF ADVISED OF THE POSSIBILITY THEREOF, AND REGARDLESS
  OF WHETHER IN AN ACTION IN CONTRACT, TORT OR NEGLIGENCE, ARISING OUT
  OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

smproxy:
  Copyright 1994, 1998  The Open Group

  Permission to use, copy, modify, distribute, and sell this software and its
  documentation for any purpose is hereby granted without fee, provided that
  the above copyright notice appear in all copies and that both that
  copyright notice and this permission notice appear in supporting
  documentation.

  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

  Except as contained in this notice, the name of The Open Group shall not be
  used in advertising or otherwise to promote the sale, use or other dealings
  in this Software without prior written authorization from The Open Group.

xsm:
  This is a stub file.  This package has not yet had its complete licensing
  information compiled.  Please see the individual source files for details on
  your rights to use and modify this software.

  Please submit updated COPYING files to the Xorg bugzilla:

  https://bugs.freedesktop.org/enter_bug.cgi?product=xorg

  All licensing questions regarding this software should be directed at the
  Xorg mailing list:

  http://lists.freedesktop.org/mailman/listinfo/xorg