1 /* $OpenBSD: crash.c,v 1.2 2019/09/10 19:01:24 bluhm Exp $ */ 2 /* 3 * Copyright (c) 2017-2019 Alexander Bluhm <bluhm@openbsd.org> 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #include <err.h> 19 #include <stdlib.h> 20 #include <signal.h> 21 #include <unistd.h> 22 23 void handler(int); 24 25 int 26 main(int argc, char *argv[]) 27 { 28 int *i; 29 30 if (signal(SIGSEGV, handler) == SIG_ERR) 31 err(1, "signal"); 32 i = (void *)0x10UL; 33 (*i)++; 34 return *i; 35 } 36 37 void 38 handler(int signum) 39 { 40 _exit(0); 41 } 42