1*6296f739Spooka /* $NetBSD: h_sigcli.c,v 1.3 2011/02/07 20:05:09 pooka Exp $ */
2b2d5a8aeSpooka
3b2d5a8aeSpooka #include <sys/types.h>
4b2d5a8aeSpooka #include <sys/sysctl.h>
5b2d5a8aeSpooka
6b2d5a8aeSpooka #include <err.h>
7b2d5a8aeSpooka #include <stdlib.h>
8b2d5a8aeSpooka #include <stdio.h>
9b2d5a8aeSpooka #include <string.h>
10b2d5a8aeSpooka #include <unistd.h>
11b2d5a8aeSpooka
12b2d5a8aeSpooka #include <rump/rump_syscalls.h>
13b2d5a8aeSpooka #include <rump/rumpclient.h>
14b2d5a8aeSpooka
15b2d5a8aeSpooka static const int hostnamemib[] = { CTL_KERN, KERN_HOSTNAME };
16b2d5a8aeSpooka static char hostnamebuf[128];
17b2d5a8aeSpooka
18e95a17b9Spooka static volatile sig_atomic_t sigexecs;
19e95a17b9Spooka
20b2d5a8aeSpooka static void
sighand(int sig)21b2d5a8aeSpooka sighand(int sig)
22b2d5a8aeSpooka {
23b2d5a8aeSpooka char buf[128];
24b2d5a8aeSpooka size_t blen = sizeof(buf);
25b2d5a8aeSpooka
26b2d5a8aeSpooka if (rump_sys___sysctl(hostnamemib, __arraycount(hostnamemib),
27b2d5a8aeSpooka buf, &blen, NULL, 0) == -1)
28b2d5a8aeSpooka err(1, "sighand sysctl");
29b2d5a8aeSpooka if (strcmp(buf, hostnamebuf) != 0)
30b2d5a8aeSpooka errx(1, "sighandler hostname");
31e95a17b9Spooka sigexecs++;
32b2d5a8aeSpooka }
33b2d5a8aeSpooka
34b2d5a8aeSpooka int
main(void)35b2d5a8aeSpooka main(void)
36b2d5a8aeSpooka {
37b2d5a8aeSpooka char buf[128];
38*6296f739Spooka time_t tstart;
39b2d5a8aeSpooka struct itimerval itv;
40b2d5a8aeSpooka size_t hnbsize;
41b2d5a8aeSpooka int i;
42b2d5a8aeSpooka size_t blen;
43b2d5a8aeSpooka
44b2d5a8aeSpooka if (rumpclient_init() == -1)
45b2d5a8aeSpooka err(1, "rumpclient init");
46b2d5a8aeSpooka
47b2d5a8aeSpooka hnbsize = sizeof(hostnamebuf);
48b2d5a8aeSpooka if (rump_sys___sysctl(hostnamemib, __arraycount(hostnamemib),
49b2d5a8aeSpooka hostnamebuf, &hnbsize, NULL, 0) == -1)
50b2d5a8aeSpooka err(1, "sysctl");
51b2d5a8aeSpooka
52b2d5a8aeSpooka if (signal(SIGALRM, sighand) == SIG_ERR)
53b2d5a8aeSpooka err(1, "signal");
54b2d5a8aeSpooka
55b2d5a8aeSpooka itv.it_interval.tv_sec = itv.it_value.tv_sec = 0;
56b2d5a8aeSpooka itv.it_interval.tv_usec = itv.it_value.tv_usec = 10000; /* 10ms */
57b2d5a8aeSpooka
58b2d5a8aeSpooka if (setitimer(ITIMER_REAL, &itv, NULL) == -1)
59b2d5a8aeSpooka err(1, "itimer");
60b2d5a8aeSpooka
61*6296f739Spooka tstart = time(NULL);
62*6296f739Spooka for (i = 0;; i++) {
63b2d5a8aeSpooka blen = sizeof(buf);
64b2d5a8aeSpooka if (rump_sys___sysctl(hostnamemib, __arraycount(hostnamemib),
65b2d5a8aeSpooka buf, &blen, NULL, 0) == -1)
66b2d5a8aeSpooka err(1, "sysctl");
67b2d5a8aeSpooka if (strcmp(buf, hostnamebuf) != 0)
68b2d5a8aeSpooka errx(1, "main hostname");
69*6296f739Spooka
70*6296f739Spooka /*
71*6296f739Spooka * check every 100 cycles to avoid doing
72*6296f739Spooka * nothing but gettimeofday()
73*6296f739Spooka */
74*6296f739Spooka if (i == 100) {
75*6296f739Spooka if (time(NULL) - tstart > 5)
76*6296f739Spooka break;
77*6296f739Spooka i = 0;
78*6296f739Spooka }
79b2d5a8aeSpooka }
80e95a17b9Spooka
81e95a17b9Spooka if (!sigexecs) {
82e95a17b9Spooka printf("no signal handlers run. test busted?\n");
83e95a17b9Spooka }
84b2d5a8aeSpooka }
85