static int zfs_receive_impl(libzfs_handle_t *, const char *, recvflags_t,
int, const char *, nvlist_t *, avl_tree_t *, char **, int, uint64_t *);
static int zfs_receive_impl(libzfs_handle_t *, const char *, recvflags_t,
int, const char *, nvlist_t *, avl_tree_t *, char **, int, uint64_t *);