[chore]: Bump github.com/miekg/dns from 1.1.50 to 1.1.51 (#1566)

Bumps [github.com/miekg/dns](https://github.com/miekg/dns) from 1.1.50 to 1.1.51.
- [Release notes](https://github.com/miekg/dns/releases)
- [Changelog](https://github.com/miekg/dns/blob/master/Makefile.release)
- [Commits](https://github.com/miekg/dns/compare/v1.1.50...v1.1.51)

---
updated-dependencies:
- dependency-name: github.com/miekg/dns
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/vendor/github.com/miekg/dns/msg_helpers.go b/vendor/github.com/miekg/dns/msg_helpers.go
index ea2035cd2..42d5cd535 100644
--- a/vendor/github.com/miekg/dns/msg_helpers.go
+++ b/vendor/github.com/miekg/dns/msg_helpers.go
@@ -810,3 +810,37 @@ func unpackDataAplPrefix(msg []byte, off int) (APLPrefix, int, error) {
 		Network:  ipnet,
 	}, off, nil
 }
+
+func unpackIPSECGateway(msg []byte, off int, gatewayType uint8) (net.IP, string, int, error) {
+	var retAddr net.IP
+	var retString string
+	var err error
+
+	switch gatewayType {
+	case IPSECGatewayNone: // do nothing
+	case IPSECGatewayIPv4:
+		retAddr, off, err = unpackDataA(msg, off)
+	case IPSECGatewayIPv6:
+		retAddr, off, err = unpackDataAAAA(msg, off)
+	case IPSECGatewayHost:
+		retString, off, err = UnpackDomainName(msg, off)
+	}
+
+	return retAddr, retString, off, err
+}
+
+func packIPSECGateway(gatewayAddr net.IP, gatewayString string, msg []byte, off int, gatewayType uint8, compression compressionMap, compress bool) (int, error) {
+	var err error
+
+	switch gatewayType {
+	case IPSECGatewayNone: // do nothing
+	case IPSECGatewayIPv4:
+		off, err = packDataA(gatewayAddr, msg, off)
+	case IPSECGatewayIPv6:
+		off, err = packDataAAAA(gatewayAddr, msg, off)
+	case IPSECGatewayHost:
+		off, err = packDomainName(gatewayString, msg, off, compression, compress)
+	}
+
+	return off, err
+}