#include <sys/types.h>
#include <sys/stat.h>
#include <fts.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <sanitizer/msan_interface.h>

static int
mastercmp(const FTSENT **a, const FTSENT **b)
{
        int a_info, b_info;

#if 0
	__msan_unpoison(a, sizeof(void*));
	__msan_unpoison(b, sizeof(void*));

	__msan_unpoison(*a, sizeof(FTSENT));
	__msan_unpoison(*b, sizeof(FTSENT));
#endif

	printf("(*a).fts_path=%s\n", (*a)->fts_path);
	printf("(*b).fts_path=%s\n", (*b)->fts_path);

        a_info = (*a)->fts_info;
        if (a_info == FTS_ERR)
                return (0);
        b_info = (*b)->fts_info;
        if (b_info == FTS_ERR)
                return (0);

        if (a_info == FTS_NS || b_info == FTS_NS) {
                if (b_info != FTS_NS)
                        return (1);
                else if (a_info != FTS_NS)
                        return (-1);
                else
			return strcmp((*a)->fts_name, (*b)->fts_name);
        }

        if (a_info != b_info &&
            (*a)->fts_level == FTS_ROOTLEVEL) {
                if (a_info == FTS_D)
                        return (1);
                else if (b_info == FTS_D) 
                        return (-1);
        }
	return strcmp((*a)->fts_name, (*b)->fts_name);
}

int
main(int argc, char **argv)
{
	FTS *ftsp;

	int options = 0;

	if (argc < 2)
		errx(EXIT_FAILURE, "argc < 2");

	ftsp = fts_open(argv, options, mastercmp);
	if (ftsp == NULL)
		err(EXIT_FAILURE, NULL);

	printf("ftsp->fts_path=%s\n", ftsp->fts_path);

	fts_children(ftsp, 0);

	return EXIT_SUCCESS;
}