CBUF_SIZE
for (k = 0; cp < endcp && (sz + CBUF_SIZE) <= endsz &&
cp->size = CBUF_SIZE;
sz += CBUF_SIZE;
for (; cp < endcp && (sz + CBUF_SIZE) <= endsz; cp++) {
cp->size = CBUF_SIZE;
sz += CBUF_SIZE;
datahdr.dump_maxcsize = CBUF_SIZE;
cp->size = CBUF_SIZE;