+Copyright 1979, 1980, 1983, 1986, 1993
+The Regents of the University of California. All rights reserved.
+.sp 2
+Other than the specific manual pages and documents listed below
+as copyrighted by AT&T,
+redistribution and use of this manual in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+.sp 0.5
+.in +0.2i
+.ta 0.2i
+.ti -0.2i
+1) Redistributions of this manual must retain the copyright
+notices on this page, this list of conditions and the following disclaimer.
+.ti -0.2i
+2) Software or documentation that incorporates part of this manual must
+reproduce the copyright notices on this page, this list of conditions and
+the following disclaimer in the documentation and/or other materials
+provided with the distribution.
+.ti -0.2i
+3) All advertising materials mentioning features or use of this software
+must display the following acknowledgement:
+``This product includes software developed by the University of
+California, Berkeley and its contributors.''
+.ti -0.2i
+4) Neither the name of the University nor the names of its contributors
+may be used to endorse or promote products derived from this software
+without specific prior written permission.
+.in -0.2i
+.sp
+\fB\s-1THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.\s+1\fP
+.sp 2
+The Institute of Electrical and Electronics Engineers and the American
+National Standards Committee X3, on Information Processing Systems have
+given us permission to reprint portions of their documentation.
+.sp
+In the following statement, the phrase ``this text'' refers to portions
+of the system documentation.
+.sp 0.5
+``Portions of this text are reprinted and reproduced in
+electronic form in 4.4BSD from IEEE Std 1003.1-1988, IEEE
+Standard Portable Operating System Interface for Computer Environments
+(POSIX), copyright 1988 by the Institute of Electrical and Electronics
+Engineers, Inc. In the event of any discrepancy between these versions
+and the original IEEE Standard, the original IEEE Standard is the referee
+document.''
+.sp
+In the following statement, the phrase ``This material'' refers to portions
+of the system documentation.
+.sp 0.5
+``This material is reproduced with permission from American National
+Standards Committee X3, on Information Processing Systems. Computer and
+Business Equipment Manufacturers Association (CBEMA), 311 First St., NW,
+Suite 500, Washington, DC 20001-2178. The developmental work of
+Programming Language C was completed by the X3J11 Technical Committee.''