void key_block_destroy(zebra_key_block_t *pp);
void key_block_flush(zebra_key_block_t p, int is_final);
void key_block_write(zebra_key_block_t p, SYSNO sysno, struct it_key *key_in,
void key_block_destroy(zebra_key_block_t *pp);
void key_block_flush(zebra_key_block_t p, int is_final);
void key_block_write(zebra_key_block_t p, SYSNO sysno, struct it_key *key_in,