SNMP::IntegerBER Class Reference

BER object to handle integer. More...

#include <src/BER.h>

Inheritance diagram for SNMP::IntegerBER:

Collaboration diagram for SNMP::IntegerBER:

Public Member Functions
	IntegerBER (const int32_t value)
	Creates an IntegerBER object.
virtual void	encode (Stream &stream)
	Encodes IntegerBER to stream.
virtual void	decode (Stream &stream, const uint8_t flag=Flag::None)
	Decodes IntegerBER from stream.
virtual uint8_t *	encode (uint8_t *buffer)
	Encodes IntegerBER to memory buffer.
virtual uint8_t *	decode (uint8_t *buffer)
	Decodes IntegerBER from memory buffer.
const int32_t	getValue () const
	Gets the IntegerBER value.
void	setValue (const int32_t value)
	Sets the IntegerBER value.
Public Member Functions inherited from SNMP::BER
	BER (const unsigned int type)
	Creates a BER object.
virtual	~BER ()
	BER destructor.
template<typename T>
void	encodeNumeric (T value, Stream &stream)
	Encodes BER numeric value to stream.
template<typename T>
void	decodeNumeric (T *value, Stream &stream, const uint8_t flag=Flag::None)
	Decodes BER numeric value from stream.
template<typename T>
uint8_t *	encodeNumeric (T value, uint8_t *buffer)
	Encodes BER numeric value to memory buffer.
template<typename T>
uint8_t *	decodeNumeric (T *value, uint8_t *buffer, const uint8_t flag=Flag::None)
	Decodes BER numeric value from memory buffer.
template<typename T>
void	setNegative (T value)
	Computes BER length of a negative integer.
template<typename T>
void	setPositive (T value)
	Computes BER length of a positive integer.
const unsigned int	getType () const
	Gets the BER type.
const unsigned int	getLength () const
	Gets the BER length.
virtual const unsigned int	getSize (const bool refresh=false)
	Gets the size of the BER.
Public Member Functions inherited from SNMP::Base
void	encode7bits (uint32_t value, uint8_t *buffer, const uint8_t size)
	Encodes integer value to memory buffer.

Private Attributes
int32_t	_value

Additional Inherited Members
Static Public Member Functions inherited from SNMP::Base
static void	encode7bits (uint32_t value, Stream &stream, const uint8_t size)
	Encodes integer value to stream.
Protected Member Functions inherited from SNMP::BER
BER *	create (const Type &type)
	Creates a BER of given type.
Protected Attributes inherited from SNMP::BER
Length	_length
Type	_type
Protected Attributes inherited from SNMP::Base
unsigned int	_size = 0

Detailed Description

BER object to handle integer.

• Type is TYPE_INTEGER.
• Length is variable, from 1 to 4 byte(s), short form encoding.
• Size is variable, from 3 to 6 bytes.

Example

Integer	Encoding
0	02 01 00
127	02 01 7F
128	02 02 00 80
256	02 02 01 00
2147483647	02 04 7F FF FF FF
-128	02 01 80
-129	02 02 FF 7F
-2147483648	02 04 80 00 00 00

Definition at line 1179 of file BER.h.

Constructor & Destructor Documentation

IntegerBER()

SNMP::IntegerBER::IntegerBER ( const int32_t value )

inline

Creates an IntegerBER object.

Parameters

value

IntegerBER integer value.

Definition at line 1186 of file BER.h.

References SNMP::BER::BER(), and setValue().

Member Function Documentation

decode() [1/2]

virtual void SNMP::IntegerBER::decode ( Stream & stream, const uint8_t flag = Flag::None )

inlinevirtual

Decodes IntegerBER from stream.

The inherited BER::decodeNumeric<T>() template function decodes type, length and value.

Parameters

stream	Stream to read from.
flag	Decoding flag.

Reimplemented from SNMP::BER.

Definition at line 1213 of file BER.h.

References _value, SNMP::BER::decodeNumeric(), and SNMP::Flag::None.

decode() [2/2]

virtual uint8_t * SNMP::IntegerBER::decode ( uint8_t * buffer )

inlinevirtual

Decodes IntegerBER from memory buffer.

The inherited BER::decodeNumeric<T>() template function decodes type, length and value.

Parameters

buffer

Pointer to the buffer.

Returns

Next position to be read in buffer.

Reimplemented from SNMP::BER.

Definition at line 1240 of file BER.h.

References _value, and SNMP::BER::decodeNumeric().

encode() [1/2]

virtual void SNMP::IntegerBER::encode ( Stream & stream )

inlinevirtual

Encodes IntegerBER to stream.

The inherited BER::encodeNumeric<T>() template function encodes type, length and value.

Parameters

stream

Stream to write to.

Reimplemented from SNMP::BER.

Definition at line 1200 of file BER.h.

References _value, and SNMP::BER::encodeNumeric().

encode() [2/2]

virtual uint8_t * SNMP::IntegerBER::encode ( uint8_t * buffer )

inlinevirtual

Encodes IntegerBER to memory buffer.

The inherited BER::encodeNumeric<T>() template function encodes type, length and value.

Parameters

buffer

Pointer to the buffer.

Returns

Next position to be written in buffer.

Reimplemented from SNMP::BER.

Definition at line 1227 of file BER.h.

References _value, and SNMP::BER::encodeNumeric().

getValue()

const int32_t SNMP::IntegerBER::getValue ( ) const

inline

Gets the IntegerBER value.

Returns

IntegerBER integer value.

Definition at line 1250 of file BER.h.

References _value.

setValue()

void SNMP::IntegerBER::setValue ( const int32_t value )

inline

Sets the IntegerBER value.

Note

Length is updated.

Parameters

value

IntegerBER integer value.

Definition at line 1261 of file BER.h.

References _value, SNMP::BER::setNegative(), and SNMP::BER::setPositive().

Referenced by IntegerBER().

Member Data Documentation

_value

int32_t SNMP::IntegerBER::_value

private

IntegerBER integer value.

Definition at line 1272 of file BER.h.

Referenced by decode(), decode(), encode(), encode(), getValue(), and setValue().

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The documentation for this class was generated from the following file:

• BER.h