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Annotation of src/usr.bin/telnet/fdset.h, Revision 1.1

1.1     ! deraadt     1: /*
        !             2:  * Copyright (c) 1988, 1993
        !             3:  *     The Regents of the University of California.  All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  *
        !            33:  *     from: @(#)fdset.h       8.1 (Berkeley) 6/6/93
        !            34:  *     $Id: fdset.h,v 1.3 1994/02/25 03:00:27 cgd Exp $
        !            35:  */
        !            36:
        !            37: /*
        !            38:  * The following is defined just in case someone should want to run
        !            39:  * this telnet on a 4.2 system.
        !            40:  *
        !            41:  */
        !            42:
        !            43: #ifndef        FD_SETSIZE
        !            44:
        !            45: #define        FD_SET(n, p)    ((p)->fds_bits[0] |= (1<<(n)))
        !            46: #define        FD_CLR(n, p)    ((p)->fds_bits[0] &= ~(1<<(n)))
        !            47: #define        FD_ISSET(n, p)  ((p)->fds_bits[0] & (1<<(n)))
        !            48: #define FD_ZERO(p)     ((p)->fds_bits[0] = 0)
        !            49:
        !            50: #endif