1 /* $OpenBSD: dr_4.c,v 1.4 2009/10/27 23:59:27 deraadt Exp $ */ 2 /* $NetBSD: dr_4.c,v 1.3 1995/04/22 10:36:50 cgd Exp $ */ 3 4 /* 5 * Copyright (c) 1983, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include "extern.h" 34 #include <stdlib.h> 35 36 void 37 ungrap(from, to) 38 struct ship *from, *to; 39 { 40 int k; 41 char friend; 42 43 if ((k = grappled2(from, to)) == 0) 44 return; 45 friend = capship(from)->nationality == capship(to)->nationality; 46 while (--k >= 0) { 47 if (friend || die() < 3) { 48 cleangrapple(from, to, 0); 49 makesignal(from, "ungrappling $$", to); 50 } 51 } 52 } 53 54 void 55 grap(from, to) 56 struct ship *from, *to; 57 { 58 if (capship(from)->nationality != capship(to)->nationality && die() > 2) 59 return; 60 Write(W_GRAP, from, to->file->index, 0, 0, 0); 61 Write(W_GRAP, to, from->file->index, 0, 0, 0); 62 makesignal(from, "grappled with $$", to); 63 } 64