996     info.mMessage.Reset(mSocket.NewMessage());  in SendUpdate()
997     VerifyOrExit(info.mMessage != nullptr, error = kErrorNoBufs);  in SendUpdate()
1001     length = info.mMessage->GetLength() + sizeof(Ip6::Udp::Header) + sizeof(Ip6::Header);  in SendUpdate()
1007         IgnoreError(info.mMessage->SetLength(0));  in SendUpdate()
1011     SuccessOrExit(error = mSocket.SendTo(*info.mMessage, Ip6::MessageInfo()));  in SendUpdate()
1016     info.mMessage.Release();  in SendUpdate()
1132     SuccessOrExit(error = aInfo.mMessage->Append(header));  in PrepareUpdateMessage()
1136     aInfo.mDomainNameOffset = aInfo.mMessage->GetLength();  in PrepareUpdateMessage()
1137     SuccessOrExit(error = Dns::Name::AppendName(mDomainName, *aInfo.mMessage));  in PrepareUpdateMessage()
1138     SuccessOrExit(error = aInfo.mMessage->Append(Dns::Zone()));  in PrepareUpdateMessage()
1146     aInfo.mMessage->Write(kHeaderOffset, header);  in PrepareUpdateMessage()
1154     aInfo.mMessage->Write(kHeaderOffset, header);  in PrepareUpdateMessage()
1386     serviceNameOffset = aInfo.mMessage->GetLength();  in AppendServiceInstruction()
1387     SuccessOrExit(error = Dns::Name::AppendMultipleLabels(aService.GetName(), *aInfo.mMessage));  in AppendServiceInstruction()
1388     SuccessOrExit(error = Dns::Name::AppendPointerLabel(aInfo.mDomainNameOffset, *aInfo.mMessage));  in AppendServiceInstruction()
1395     offset = aInfo.mMessage->GetLength();  in AppendServiceInstruction()
1396     SuccessOrExit(error = aInfo.mMessage->Append(rr));  in AppendServiceInstruction()
1399     instanceNameOffset = aInfo.mMessage->GetLength();  in AppendServiceInstruction()
1400     SuccessOrExit(error = Dns::Name::AppendLabel(aService.GetInstanceName(), *aInfo.mMessage));  in AppendServiceInstruction()
1401     SuccessOrExit(error = Dns::Name::AppendPointerLabel(serviceNameOffset, *aInfo.mMessage));  in AppendServiceInstruction()
1403     UpdateRecordLengthInMessage(rr, offset, *aInfo.mMessage);  in AppendServiceInstruction()
1415             SuccessOrExit(error = Dns::Name::AppendLabel(subTypeLabel, *aInfo.mMessage));  in AppendServiceInstruction()
1419                 subServiceNameOffset = aInfo.mMessage->GetLength();  in AppendServiceInstruction()
1420                 SuccessOrExit(error = Dns::Name::AppendLabel("_sub", *aInfo.mMessage));  in AppendServiceInstruction()
1421 …          SuccessOrExit(error = Dns::Name::AppendPointerLabel(serviceNameOffset, *aInfo.mMessage));  in AppendServiceInstruction()
1425 …       SuccessOrExit(error = Dns::Name::AppendPointerLabel(subServiceNameOffset, *aInfo.mMessage));  in AppendServiceInstruction()
1429             offset = aInfo.mMessage->GetLength();  in AppendServiceInstruction()
1430             SuccessOrExit(error = aInfo.mMessage->Append(rr));  in AppendServiceInstruction()
1432 …         SuccessOrExit(error = Dns::Name::AppendPointerLabel(instanceNameOffset, *aInfo.mMessage));  in AppendServiceInstruction()
1433             UpdateRecordLengthInMessage(rr, offset, *aInfo.mMessage);  in AppendServiceInstruction()
1443     SuccessOrExit(error = Dns::Name::AppendPointerLabel(instanceNameOffset, *aInfo.mMessage));  in AppendServiceInstruction()
1451     SuccessOrExit(error = Dns::Name::AppendPointerLabel(instanceNameOffset, *aInfo.mMessage));  in AppendServiceInstruction()
1457     offset = aInfo.mMessage->GetLength();  in AppendServiceInstruction()
1458     SuccessOrExit(error = aInfo.mMessage->Append(srv));  in AppendServiceInstruction()
1460     UpdateRecordLengthInMessage(srv, offset, *aInfo.mMessage);  in AppendServiceInstruction()
1465     SuccessOrExit(error = Dns::Name::AppendPointerLabel(instanceNameOffset, *aInfo.mMessage));  in AppendServiceInstruction()
1467     offset = aInfo.mMessage->GetLength();  in AppendServiceInstruction()
1468     SuccessOrExit(error = aInfo.mMessage->Append(rr));  in AppendServiceInstruction()
1470 …::TxtEntry::AppendEntries(aService.GetTxtEntries(), aService.GetNumTxtEntries(), *aInfo.mMessage));  in AppendServiceInstruction()
1471     UpdateRecordLengthInMessage(rr, offset, *aInfo.mMessage);  in AppendServiceInstruction()
1481         SuccessOrExit(error = Dns::Name::AppendPointerLabel(instanceNameOffset, *aInfo.mMessage));  in AppendServiceInstruction()
1563     SuccessOrExit(error = aInfo.mMessage->Append(rr));  in AppendAaaaRecord()
1564     SuccessOrExit(error = aInfo.mMessage->Append(aAddress));  in AppendAaaaRecord()
1584     SuccessOrExit(error = aInfo.mMessage->Append(key));  in AppendKeyRecord()
1586     SuccessOrExit(error = aInfo.mMessage->Append(publicKey));  in AppendKeyRecord()
1604     return aInfo.mMessage->Append(rr);  in AppendDeleteAllRrsets()
1615 …      SuccessOrExit(error = Dns::Name::AppendMultipleLabels(mHostInfo.GetName(), *aInfo.mMessage));  in AppendHostName()
1616         error = Dns::Name::AppendName(mDomainName, *aInfo.mMessage);  in AppendHostName()
1626         ExitNow(error = Dns::Name::AppendPointerLabel(aInfo.mHostNameOffset, *aInfo.mMessage));  in AppendHostName()
1629     aInfo.mHostNameOffset = aInfo.mMessage->GetLength();  in AppendHostName()
1630     SuccessOrExit(error = Dns::Name::AppendMultipleLabels(mHostInfo.GetName(), *aInfo.mMessage));  in AppendHostName()
1631     error = Dns::Name::AppendPointerLabel(aInfo.mDomainNameOffset, *aInfo.mMessage);  in AppendHostName()
1645     SuccessOrExit(error = Dns::Name::AppendTerminator(*aInfo.mMessage));  in AppendUpdateLeaseOptRecord()
1670     SuccessOrExit(error = aInfo.mMessage->Append(optRecord));  in AppendUpdateLeaseOptRecord()
1671     error = aInfo.mMessage->AppendBytes(&leaseOption, optionSize);  in AppendUpdateLeaseOptRecord()
1701     offset = aInfo.mMessage->GetLength();  in AppendSignature()
1702     SuccessOrExit(error = aInfo.mMessage->Append(sig));  in AppendSignature()
1715     len = aInfo.mMessage->GetLength() - offset - sizeof(Dns::ResourceRecord);  in AppendSignature()
1716     sha256.Update(*aInfo.mMessage, offset + sizeof(Dns::ResourceRecord), len);  in AppendSignature()
1719     sha256.Update(*aInfo.mMessage, 0, offset);  in AppendSignature()
1727     IgnoreError(aInfo.mMessage->SetLength(offset));  in AppendSignature()
1730     SuccessOrExit(error = Dns::Name::AppendTerminator(*aInfo.mMessage));  in AppendSignature()
1732     offset = aInfo.mMessage->GetLength();  in AppendSignature()
1733     SuccessOrExit(error = aInfo.mMessage->Append(sig));  in AppendSignature()
1735     SuccessOrExit(error = aInfo.mMessage->Append(signature));  in AppendSignature()
1736     UpdateRecordLengthInMessage(sig, offset, *aInfo.mMessage);  in AppendSignature()