1 /* 2 * Copyright (c) 1980 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that this notice is preserved and that due credit is given 7 * to the University of California at Berkeley. The name of the University 8 * may not be used to endorse or promote products derived from this 9 * software without specific prior written permission. This software 10 * is provided ``as is'' without express or implied warranty. 11 * 12 * @(#)sigretro.h 5.2 (Berkeley) 02/18/88 13 */ 14 15 /* 16 * Define extra stuff not found in signal.h 17 */ 18 19 #ifndef SIGRETRO 20 21 #define SIGRETRO /* Can use this for cond code */ 22 23 #ifndef SIG_HOLD 24 25 #define SIG_HOLD (int (*)()) 3 /* Phony action to hold sig */ 26 #define BADSIG (int (*)()) -1 /* Return value on error */ 27 28 #endif SIG_HOLD 29 30 #endif SIGRETRO 31