mbufstrcmp
if (mbufstrcmp(m, m->m_nextpkt, 1, cmp) == 1) {
} else if (mbufstrcmp(m, n, i, "HTTP/1.0") == 1 ||
mbufstrcmp(m, n, i, "HTTP/1.1") == 1) {
static int mbufstrcmp(struct mbuf *m, struct mbuf *npkt, int offset, char *cmp);