BMSIZE
#define TTYINQ_QUOTESIZE (TTYINQ_DATASIZE / BMSIZE)
((tib)->tib_quotes[(boff) / BMSIZE] & (1 << ((boff) % BMSIZE)))
((tib)->tib_quotes[(boff) / BMSIZE] |= (1 << ((boff) % BMSIZE)))
((tib)->tib_quotes[(boff) / BMSIZE] &= ~(1 << ((boff) % BMSIZE)))