func TestPrivateByteSlice(t *testing.T) {
dns.PrivateHandle("ISBN", TypeISBN, NewISBN)
defer dns.PrivateHandleRemove(TypeISBN)
rr, err := dns.NewRR(testrecord)
if err != nil {
t.Fatal(err)
}
buf := make([]byte, 100)
off, err := dns.PackRR(rr, buf, 0, nil, false)
if err != nil {
t.Errorf("got error packing ISBN: %v", err)
}
custrr := rr.(*dns.PrivateRR)
if ln := custrr.Data.Len() + len(custrr.Header().Name) + 11; ln != off {
t.Errorf("offset is not matching to length of Private RR: %d!=%d", off, ln)
}
rr1, off1, err := dns.UnpackRR(buf[:off], 0)
if err != nil {
t.Errorf("got error unpacking ISBN: %v", err)
}
if off1 != off {
t.Errorf("Offset after unpacking differs: %d != %d", off1, off)
}
if rr1.String() != testrecord {
t.Errorf("Record string representation did not match original %#v != %#v", rr1.String(), testrecord)
} else {
t.Log(rr1.String())
}
}
// Resolve wraps Unbound's ub_resolve.
func (u *Unbound) Resolve(name string, rrtype, rrclass uint16) (*Result, error) {
res := C.new_ub_result()
r := new(Result)
defer C.ub_resolve_free(res)
i := C.ub_resolve(u.ctx, C.CString(name), C.int(rrtype), C.int(rrclass), &res)
err := newError(int(i))
if err != nil {
return nil, err
}
r.Qname = C.GoString(res.qname)
r.Qtype = uint16(res.qtype)
r.Qclass = uint16(res.qclass)
r.CanonName = C.GoString(res.canonname)
r.Rcode = int(res.rcode)
r.AnswerPacket = new(dns.Msg)
r.AnswerPacket.Unpack(C.GoBytes(res.answer_packet, res.answer_len)) // Should always work
r.HaveData = res.havedata == 1
r.NxDomain = res.nxdomain == 1
r.Secure = res.secure == 1
r.Bogus = res.bogus == 1
r.WhyBogus = C.GoString(res.why_bogus)
// Re-create the RRs
var h dns.RR_Header
h.Name = r.Qname
h.Rrtype = r.Qtype
h.Class = r.Qclass
h.Ttl = 0
r.Data = make([][]byte, 0)
r.Rr = make([]dns.RR, 0)
j := 0
if r.HaveData {
b := C.GoBytes(unsafe.Pointer(C.array_elem_char(res.data, C.int(j))), C.array_elem_int(res.len, C.int(j)))
for len(b) != 0 {
// Create the RR
h.Rdlength = uint16(len(b))
msg := make([]byte, 20+len(h.Name)) // Long enough
off, _ := dns.PackStruct(&h, msg, 0)
msg = msg[:off]
rrbuf := append(msg, b...)
rr, _, err := dns.UnpackRR(rrbuf, 0)
if err == nil {
r.Rr = append(r.Rr, rr)
}
r.Data = append(r.Data, b)
j++
b = C.GoBytes(unsafe.Pointer(C.array_elem_char(res.data, C.int(j))), C.array_elem_int(res.len, C.int(j)))
}
}
return r, err
}