sendflags_t
sendflags_t flags = { 0 };
sendflags_t flags = { 0 };
sendflags_t send_flags = { 0 };
sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **);
extern int zfs_send_resume(libzfs_handle_t *, sendflags_t *, int outfd,
zfs_send_resume(libzfs_handle_t *hdl, sendflags_t *flags, int outfd,
sendflags_t *flags, int outfd, snapfilter_cb_t filter_func,