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#include <dirent.h>

#include <errno.h>

#include <syscall.h>

#include "dirstream.h"

static inline

_syscall3(int, getdents, int, __fildes, struct dirent *, __buf, size_t, __nbyte);

struct dirent *

readdir (DIR *dir)

{

  int result;

  struct dirent *de;

  if (!dir)

    {

      errno = EBADF;

      return NULL;

    }

  if (dir->dd_size <= dir->dd_nextloc)

    {

      /* read dir->dd_max bytes of directory entries. */

      result = getdents(dir->dd_fd, dir->dd_buf, dir->dd_max);

/*      __asm__ ("movel %2,%/d1\n\t"

               "movel %3,%/d2\n\t"

               "movel %4,%/d3\n\t"

               "movel %1,%/d0\n\t"

               "trap  #0\n\t"

               "movel %/d0,%0"

               : "=g" (result)

               : "i" (SYS_getdents), "g" (dir->dd_fd), "g" (dir->dd_buf),

                 "g" (dir->dd_max)

               : "%d0", "%d1", "%d2", "%d3");

*/

      /* We must have getdents (). */

      dir->dd_getdents = have_getdents;

      if (result <= 0)

        {

          errno = -result;

          return NULL;

        }

      dir->dd_size = result;

      dir->dd_nextloc = 0;

    }

  de = (struct dirent *) ((char *) dir->dd_buf + dir->dd_nextloc);

  /* Am I right? H.J. */

  dir->dd_nextloc += de->d_reclen;

  /* We have to save the next offset here. */

  dir->dd_nextoff = de->d_off;

  return de;

}