1 /* $NetBSD: ras3.c,v 1.9 2008/04/28 20:23:07 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <errno.h> 30 #include <inttypes.h> 31 #include <stdio.h> 32 #include <signal.h> 33 #include <unistd.h> 34 #include <sys/ras.h> 35 #include <sys/time.h> 36 #include <sys/wait.h> 37 38 #define COUNT 10 39 40 volatile int handled = 0; 41 volatile int count = 0; 42 struct itimerval itv; 43 44 void handler(int); 45 46 void 47 handler(int sig) 48 { 49 50 handled++; 51 } 52 53 RAS_DECL(main); 54 55 int 56 main(int argc, char *argv[]) 57 { 58 int rv; 59 char *const args[] = { argv[0], "1", NULL }; 60 61 signal(SIGVTALRM, handler); 62 63 itv.it_interval.tv_sec = 0; 64 itv.it_interval.tv_usec = 0; 65 itv.it_value.tv_sec = 10; 66 itv.it_value.tv_usec = 0; 67 setitimer(ITIMER_VIRTUAL, &itv, NULL); 68 69 if (argc != 2) { 70 if (rasctl(RAS_ADDR(main), RAS_SIZE(main), RAS_INSTALL) < 0) { 71 if (errno == EOPNOTSUPP) { 72 printf("RAS is not supported on this " 73 "architecture\n"); 74 return 0; 75 } 76 return (1); 77 } 78 if (fork() != 0) { 79 wait(&rv); 80 return (WEXITSTATUS(rv) == 0); 81 } 82 if (execvp(argv[0],args) < 0) { 83 printf("exec failed\n"); 84 return (0); 85 } 86 } 87 88 RAS_START(main); 89 count++; 90 if (count > COUNT) 91 goto end; 92 93 while (!handled) { 94 continue; 95 } 96 end: 97 RAS_END(main); 98 99 return (handled != 0); 100 } 101