36 lines
1.4 KiB
C
36 lines
1.4 KiB
C
/*
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* Copyright (c) 1988 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted provided
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* that: (1) source distributions retain this entire copyright notice and
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* comment, and (2) distributions including binaries display the following
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* acknowledgement: ``This product includes software developed by the
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* University of California, Berkeley and its contributors'' in the
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* documentation or other materials provided with the distribution and in
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* all advertising materials mentioning features or use of this software.
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* Neither the name of the University nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* @(#)fdset.h 5.1 (Berkeley) 9/14/90
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*/
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/*
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* The following is defined just in case someone should want to run
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* this telnet on a 4.2 system.
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*
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*/
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#ifndef FD_SETSIZE
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#define FD_SET(n, p) ((p)->fds_bits[0] |= (1<<(n)))
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#define FD_CLR(n, p) ((p)->fds_bits[0] &= ~(1<<(n)))
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#define FD_ISSET(n, p) ((p)->fds_bits[0] & (1<<(n)))
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#define FD_ZERO(p) ((p)->fds_bits[0] = 0)
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#endif
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