- bf_write (p->index_BFile, 1+pos/128, (int) (pos%128), itemsize, buf);
+ if (sz1 > itemsize)
+ sz1 = itemsize; /* no more than itemsize bytes */
+
+ bf_write(p->index_BFile, 1+pos/RIDX_CHUNK, off, sz1, buf);
+ if (sz1 < itemsize) /* boundary? must write second part */
+ bf_write(p->index_BFile, 2+pos/RIDX_CHUNK, 0, itemsize - sz1,
+ (char*) buf + sz1);