#include <stdio.h>
#include <kvm.h>
#include <fcntl.h>
#include <sys/param.h>
#include <sys/sysctl.h>

int main(void)
{
   kvm_t* kptr = NULL;
   struct kinfo_proc* proc_ptr = NULL;
   int nprocs;
   int i;
   int count;
   char **vectors;

   fprintf(stderr, "my pid is %ld\n", getpid());

   /* open the kernel */
   kptr = kvm_open(NULL, "/dev/null", NULL, O_RDONLY, "kvmtest");
   if (!kptr)
   {
      fprintf(stderr, "Error: kvm_open failed\n");
      return 1;
   }

   /* find the process */
   proc_ptr = kvm_getprocs(kptr, KERN_PROC_PID, getpid(), &nprocs);
   if (!proc_ptr || (nprocs != 1))
   {
      fprintf(stderr, "Error: kvm_getprocs failed\n");
      return 1;
   }

   /* get the environment vectors */
   vectors = kvm_getenvv(kptr, proc_ptr, 0);
   if (!vectors)
   {
      fprintf(stderr, "Error: kvm_getenvv failed\n");
      return 1;
   }

   /* get the argument vectors */
   vectors = kvm_getargv(kptr, proc_ptr, 0);
   if (!vectors)
   {
      fprintf(stderr, "Error:kvm_getargv failed\n");
      return 1;
   }

   /* close kernel */
   kvm_close(kptr);

   return 0;
}