#include <stdio.h>
#include <stdlib.h>
#include <sys/sysctl.h>
#include <linux/sysctl.h>
int main(int argc, char **argv)
{
int name[] = {CTL_KERN, KERN_PRINTK};
int namelen = 2;
int oldval[8]; /* 4 would suffice */
size_t len = sizeof(oldval);
int i, error;
error = sysctl (name, namelen,
(void *)oldval, &len, NULL
/* newval */, 0 /* newlen */);
if (error) {
fprintf(stderr,"%s: sysctl(): %s\n",
argv[0],strerror(errno));
exit(1);
}
printf("len is %i bytes\n", len);
for (i = 0; i < len/(sizeof(int)); i++)
printf("%i\t", oldval[i]);
printf("\n");
exit(0);
}
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