#include <sys/param.h>
#include <sys/mount.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <stdio.h>
#include <stdlib.h>

static void
print_vfc_flags(int flags)
{

    if (flags & VFCF_STATIC)
       	printf("STATIC "); 
    if (flags & VFCF_NETWORK)
	printf("NETWORK ");
    if (flags & VFCF_READONLY)
	printf("READONLY ");
    if (flags & VFCF_SYNTHETIC)
	printf("SYNTHETIC ");
    if (flags & VFCF_LOOPBACK)
	printf("LOOPBACK ");
    if (flags & VFCF_UNICODE)
	printf("UNICODE ");
    if (flags & VFCF_JAIL)
	printf("JAIL ");
    if (flags & VFCF_DELEGADMIN)
	printf("DELEGADMIN ");
    if (flags & VFCF_SBDRY)
	printf("SBDRY ");
    printf("\n");
}

int
main()
{
	struct xvfsconf *xvfsp;
	size_t buflen, nummibs;
	int cnt, i;

	int mib[10];

	nummibs = 10;

	sysctlnametomib("vfs.conflist", &mib[0], &nummibs);

	printf("nummibs = %d: mib[0] = %d mib[1] = %d\n", (int)nummibs, mib[0], mib[1]);
	

	if (sysctlbyname("vfs.conflist", NULL, &buflen, NULL, 0) < 0)
		return (-1);

	xvfsp = malloc(buflen);

	if (xvfsp == NULL)
		return (-1);

	if (sysctlbyname("vfs.conflist", xvfsp, &buflen, NULL, 0) < 0) {
		free(xvfsp);
		return (-1);
	}

	cnt = buflen / sizeof(struct xvfsconf);

	for (i = 0; i < cnt; i++) {
		printf("----------------------\n");
		printf("vfc_vfsops = %p\n", xvfsp[i].vfc_vfsops);
		printf("vfc_name = [%s]\n", xvfsp[i].vfc_name);
		printf("vfc_typenum = %d\n", xvfsp[i].vfc_typenum);
		printf("vfc_refcount = %d\n", xvfsp[i].vfc_refcount);
		printf("vfc_flags = 0x%x: ", xvfsp[i].vfc_flags);
		print_vfc_flags(xvfsp[i].vfc_flags);
		printf("vfc_next = %p\n", xvfsp[i].vfc_next);
	}

	free(xvfsp);
	return (0);
}