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ras3.c revision 1.8.4.1 
      1 /* $NetBSD: ras3.c,v 1.8.4.1 2008/05/18 12:30:49 yamt 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