C_OSYNC
{ "bs", f_bs, C_BS, C_BS|C_IBS|C_OBS|C_OSYNC },
C_UNBLOCK | C_OSYNC | C_ASCII | C_EBCDIC | C_SPARSE)) {
{ "osync", C_OSYNC, C_BS, NULL },
if (ddflags & C_OSYNC && out.dbcnt < out.dbsz) {