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Stop parsing when hitting rdlen 

Stop parsing these records when we hit rdlen.
This commit is contained in:
Miek Gieben 2014-11-09 16:17:06 +00:00
parent 11bbb59419
commit 34f43d398b
1 changed files with 5 additions and 5 deletions
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10
msg.go
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@ -1016,24 +1016,24 @@ func unpackStructValue(val reflect.Value, msg []byte, off int) (off1 int, err er
// do nothing?
off = off1 + int(optlen)
}
if off < rdend {
if off < lenrd {
goto Option
}
fv.Set(reflect.ValueOf(edns))
case `dns:"a"`:
if off == lenmsg {
if off == lenrd {
break // dyn. update
}
if off+net.IPv4len > rdend || off+net.IPv4len > lenmsg {
if off+net.IPv4len > lenrd || off+net.IPv4len > lenmsg {
return lenmsg, &Error{err: "overflow unpacking a"}
}
fv.Set(reflect.ValueOf(net.IPv4(msg[off], msg[off+1], msg[off+2], msg[off+3])))
off += net.IPv4len
case `dns:"aaaa"`:
if off == rdend {
if off == lenrd {
break
}
if off+net.IPv6len > rdend || off+net.IPv6len > lenmsg {
if off+net.IPv6len > lenrd || off+net.IPv6len > lenmsg {
return lenmsg, &Error{err: "overflow unpacking aaaa"}
}
fv.Set(reflect.ValueOf(net.IP{msg[off], msg[off+1], msg[off+2], msg[off+3], msg[off+4],