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- /*
- * Copyright (c) 1988 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted provided
- * that: (1) source distributions retain this entire copyright notice and
- * comment, and (2) distributions including binaries display the following
- * acknowledgement: ``This product includes software developed by the
- * University of California, Berkeley and its contributors'' in the
- * documentation or other materials provided with the distribution and in
- * all advertising materials mentioning features or use of this software.
- * 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.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * @(#)fdset.h 5.1 (Berkeley) 9/14/90
- */
-
- /*
- * The following is defined just in case someone should want to run
- * this telnet on a 4.2 system.
- *
- */
-
- #ifndef FD_SETSIZE
-
- #define FD_SET(n, p) ((p)->fds_bits[0] |= (1<<(n)))
- #define FD_CLR(n, p) ((p)->fds_bits[0] &= ~(1<<(n)))
- #define FD_ISSET(n, p) ((p)->fds_bits[0] & (1<<(n)))
- #define FD_ZERO(p) ((p)->fds_bits[0] = 0)
-
- #endif
-