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SourceVuESP-IDF Framework and ExamplesESP-IDFot::Dns::Name::AppendPointerLabel()

ot::Dns::Name::AppendPointerLabel() method

Appends a pointer type name label to a message. Pointer label is used for name compression. It allows an entire name or a list of labels at the end of an encoded name to be replaced with a pointer to a prior occurrence of the same name within the message.

Syntax

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Summary

Declaration

Definition

from dns_types.hpp:705

static Error AppendPointerLabel(uint16_t aOffset, Message &aMessage);

Implemented in dns_types.cpp:275

Arguments

Argument

Description

aOffset

The offset from the start of DNS header to use for pointer value.

aMessage

The message to append to.

Return value

kErrorNone Successfully encoded and appended the pointer label to @p aMessage. kErrorNoBufs Insufficient available buffers to grow the message.

References

Code

Location

Scope

Referrer

Error Name::AppendPointerLabel(uint16_t aOffset, Message &aMessage)

dns_types.cpp:275

static Error AppendPointerLabel(uint16_t aOffset, Message &aMessage);

dns_types.hpp:705

SuccessOrExit(error = Dns::Name::AppendPointerLabel(aInfo.mDomainNameOffset, *aInfo.mMessage));

srp_client.cpp:1387

ot::Srp::Client

ot::Srp::Client::AppendServiceInstruction()

SuccessOrExit(error = Dns::Name::AppendPointerLabel(serviceNameOffset, *aInfo.mMessage));

srp_client.cpp:1400

ot::Srp::Client

ot::Srp::Client::AppendServiceInstruction()

SuccessOrExit(error = Dns::Name::AppendPointerLabel(serviceNameOffset, *aInfo.mMessage));

srp_client.cpp:1420

ot::Srp::Client

ot::Srp::Client::AppendServiceInstruction()

SuccessOrExit(error = Dns::Name::AppendPointerLabel(subServiceNameOffset, *aInfo.mMessage));

srp_client.cpp:1424

ot::Srp::Client

ot::Srp::Client::AppendServiceInstruction()

SuccessOrExit(error = Dns::Name::AppendPointerLabel(instanceNameOffset, *aInfo.mMessage));

srp_client.cpp:1431

ot::Srp::Client

ot::Srp::Client::AppendServiceInstruction()

SuccessOrExit(error = Dns::Name::AppendPointerLabel(instanceNameOffset, *aInfo.mMessage));

srp_client.cpp:1442

ot::Srp::Client

ot::Srp::Client::AppendServiceInstruction()

SuccessOrExit(error = Dns::Name::AppendPointerLabel(instanceNameOffset, *aInfo.mMessage));

srp_client.cpp:1450

ot::Srp::Client

ot::Srp::Client::AppendServiceInstruction()

SuccessOrExit(error = Dns::Name::AppendPointerLabel(instanceNameOffset, *aInfo.mMessage));

srp_client.cpp:1464

ot::Srp::Client

ot::Srp::Client::AppendServiceInstruction()

SuccessOrExit(error = Dns::Name::AppendPointerLabel(instanceNameOffset, *aInfo.mMessage));

srp_client.cpp:1480

ot::Srp::Client

ot::Srp::Client::AppendServiceInstruction()

ExitNow(error = Dns::Name::AppendPointerLabel(aInfo.mHostNameOffset, *aInfo.mMessage));

srp_client.cpp:1625

ot::Srp::Client

ot::Srp::Client::AppendHostName() const

error = Dns::Name::AppendPointerLabel(aInfo.mDomainNameOffset, *aInfo.mMessage);

srp_client.cpp:1630

ot::Srp::Client

ot::Srp::Client::AppendHostName() const

Call Tree

ot::Dns::Name::AppendPointerLabel() is called by 2 functions and calls 6 functions:

ot::Srp::Client::AppendServiceInstruction()

ot::Srp::Client::AppendHostName() const

ot::Dns::Name::AppendPointerLabel()

ot::BigEndian::HostSwap16()

ot::Message::GetOffset() const

ot::Instance::IsDnsNameCompressionEnabled()

ot::Dns::Name::Name()

otPlatAssertFail()

ot::Dns::Name::AppendTo() const

Data Use

ot::Dns::Name::AppendPointerLabel() reads 1 variable:

ot::Dns::Name::kPointerLabelTypeUint16

ot::Dns::Name::AppendPointerLabel()

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