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