fblocks
fseekp = feobp = fblocks = 0;
for (i = 0; i < fblocks; i++)
(tchar **)xcalloc((unsigned)(fblocks + 2), sizeof (tchar **));
fbuf[fblocks] = (tchar *)xcalloc(BUFSIZ + MB_LEN_MAX,
fblocks++;
if (buf >= fblocks) {
fblocks -= sb;
fblocks = 1;