license

<B>Digital的Unix操作系统VAX 4.2源码</B>

              Copyright 1989, 1990 Digital Equipment Corporation
                         All Rights Reserved


Permission to use, copy, and modify this software and its documentation is
hereby granted only under the following terms and conditions.  Both the above
copyright notice and this permission notice must appear in all copies of the
software, derivative works or modified versions, and any portions threof, and
both notices must appear in supporting documentation.

Users of this software agree to the terms and conditions set forth herein,
and hereby grant back to Digital a non-exclusive, unrestricted, royalty-free
right and license under any changes, enhancements or extensions made to the
core functions of the software, including but not limited to those affording
compatibility with other hardware or software environments, but excluding
applications which incorporate this software.  Users further agree to use
their best efforts to return to Digital any such changes, enhancements or
extensions that they make and inform Digital of noteworthy uses of this
software.  Correspondence should be provided to Digital at:

                      Director of Licensing
                      Western Research Laboratory
                      Digital Equipment Corporation
                      100 Hamilton Avenue
                      Palo Alto, California  94301  

Comments and bug reports may also be sent using electronic mail to:
			[e-mail]

	>> This software may NOT be distributed to third parties. <<
  
THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS
ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL
EQUIPMENT CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.