GNUNET_assert (sizeof (buf) == GNUNET_DISK_file_write (fh, buf, sizeof (buf)));
GNUNET_DISK_file_sync (fh);
if (ret < GNUNET_OS_load_disk_get (cfg))
GNUNET_assert (sizeof (buf) == GNUNET_DISK_file_write (fh, buf, sizeof (buf)));
GNUNET_DISK_file_sync (fh);
if (ret < GNUNET_OS_load_disk_get (cfg))