ab9dd18bec
See https://github.com/hashicorp/consul/issues/3977 While trying to improve furthermore #3948 (This pull request is still valid since we are not using Compression to compute the result anyway). I saw a strange behaviour of dns library. Basically, msg.Len() and len(msg.Pack()) disagree on Message len. Thus, calculation of DNS response is false consul relies on msg.Len() instead of the result of Pack() This is linked to miekg/dns#453 and a fix has been provided with miekg/dns#454 Would it be possible to upgrade miekg/dns to a more recent function ? Consul might for instance upgrade to a post 1.0 release such as https://github.com/miekg/dns/releases/tag/v1.0.4
36 lines
1.1 KiB
Go
36 lines
1.1 KiB
Go
// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !nacl,!plan9,!windows
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package ipv6
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import (
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"net"
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"syscall"
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)
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// ReadFrom reads a payload of the received IPv6 datagram, from the
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// endpoint c, copying the payload into b. It returns the number of
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// bytes copied into b, the control message cm and the source address
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// src of the received datagram.
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func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) {
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if !c.ok() {
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return 0, nil, nil, syscall.EINVAL
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}
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return c.readFrom(b)
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}
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// WriteTo writes a payload of the IPv6 datagram, to the destination
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// address dst through the endpoint c, copying the payload from b. It
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// returns the number of bytes written. The control message cm allows
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// the IPv6 header fields and the datagram path to be specified. The
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// cm may be nil if control of the outgoing datagram is not required.
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func (c *payloadHandler) WriteTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) {
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if !c.ok() {
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return 0, syscall.EINVAL
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}
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return c.writeTo(b, cm, dst)
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}
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