85 lines
1.7 KiB
C
85 lines
1.7 KiB
C
/* $NetBSD: h_sigcli.c,v 1.3 2011/02/07 20:05:09 pooka Exp $ */
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <err.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <rump/rump_syscalls.h>
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#include <rump/rumpclient.h>
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static const int hostnamemib[] = { CTL_KERN, KERN_HOSTNAME };
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static char hostnamebuf[128];
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static volatile sig_atomic_t sigexecs;
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static void
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sighand(int sig)
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{
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char buf[128];
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size_t blen = sizeof(buf);
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if (rump_sys___sysctl(hostnamemib, __arraycount(hostnamemib),
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buf, &blen, NULL, 0) == -1)
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err(1, "sighand sysctl");
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if (strcmp(buf, hostnamebuf) != 0)
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errx(1, "sighandler hostname");
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sigexecs++;
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}
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int
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main(void)
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{
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char buf[128];
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time_t tstart;
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struct itimerval itv;
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size_t hnbsize;
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int i;
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size_t blen;
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if (rumpclient_init() == -1)
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err(1, "rumpclient init");
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hnbsize = sizeof(hostnamebuf);
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if (rump_sys___sysctl(hostnamemib, __arraycount(hostnamemib),
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hostnamebuf, &hnbsize, NULL, 0) == -1)
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err(1, "sysctl");
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if (signal(SIGALRM, sighand) == SIG_ERR)
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err(1, "signal");
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itv.it_interval.tv_sec = itv.it_value.tv_sec = 0;
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itv.it_interval.tv_usec = itv.it_value.tv_usec = 10000; /* 10ms */
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if (setitimer(ITIMER_REAL, &itv, NULL) == -1)
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err(1, "itimer");
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tstart = time(NULL);
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for (i = 0;; i++) {
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blen = sizeof(buf);
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if (rump_sys___sysctl(hostnamemib, __arraycount(hostnamemib),
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buf, &blen, NULL, 0) == -1)
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err(1, "sysctl");
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if (strcmp(buf, hostnamebuf) != 0)
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errx(1, "main hostname");
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/*
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* check every 100 cycles to avoid doing
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* nothing but gettimeofday()
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*/
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if (i == 100) {
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if (time(NULL) - tstart > 5)
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break;
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i = 0;
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}
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}
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if (!sigexecs) {
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printf("no signal handlers run. test busted?\n");
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}
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}
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