Cross platform C++ wrapper for posix sockets. More...

#include <socket.hpp>

Public Types
enum	AddressType { AddressType_IPV4, AddressType_IPV6, AddressType_InterfaceName }

enum	ProtocolMask { Proto_IPV4 = (1 << 0), Proto_IPV6 = (1 << 1) }

Public Member Functions
int	accept (bool loopBack=false)
	Accept connection to socket. More...

bool	bind (int port, bool loopBack=false, bool reuseaddr=true)
	Bind an address to socket. More...

bool	bindToInterface (int port, const string &interfacename, bool reuseaddr)
	Binds a socket to specific port and interface. More...

int	close ()

bool	connect (const string &server, int port)
	Connect socket to server. More...

bool	connect (sockaddr address)
	Connect socket to server. More...

bool	create (int af, int type, int protocol)
	Create socket. More...

int	getFD () const
	Returns file descriptor of this socket. More...

string	getIPAddress ()
	Retrieves ip address of this socket. More...

int	getPort ()
	Retrieves port of this socket. More...

string	getRemoteIPAddress () const
	Retrieves remote ip address of this socket. More...

sockaddr *	getSockAddr ()
	Retrieves socket address of this socket. More...

bool	isConnected () const
	Checks whether the socket is connected. More...

int	listen (int maxConnections)
	Listen for connections on this socket. More...

int	read (vector< char > &data)
	Read data from socket. More...

int	readOne (char &data)
	Read one byte of data from socket. More...

void	setBlocking (bool blocking)
	Sets socket blocking mode. More...

int	shutdown (bool read, bool write)

	Socket (int fd=-1)
	Constructor. More...

int	write (const vector< char > &data)
	Write data to socket. More...

	~Socket ()
	Destructor. More...

Static Public Member Functions
static unsigned long	bytesAvailable (int fd)
	Non-blocking check of how much data is available for reading from descriptor. More...

static enum AddressType	determineAddressType (const string &candidate)
	Determines a type of given address. More...

static vector< string >	getBindableAddresses (const string &interfacename, size_t mask=(Proto_IPV4\|Proto_IPV6))
	Returns a list of addresses that belong into specific interface. More...

static bool	getIPAndPort (sockaddr_storage *sender, string &ip, string &port)
	Translate sockaddr into ip address and port number. More...

static bool	looksLikeIPV6Address (const string &address)
	Checks whether given address looks like a IPv6 address. More...

static int	read (int fd, vector< char > &data)
	Read all data from file descriptor to data buffer. More...

static int	readOne (int fd, char &data)
	Read one byte from a file descriptor to a character. More...

Protected Member Functions
bool	isDatagram () const
	Checks is the socket datagram type. More...

Detailed Description

Cross platform C++ wrapper for posix sockets.

Member Enumeration Documentation

◆ AddressType

enum kanzi::connect::Socket::AddressType

Enumerator
AddressType_IPV4	Specific address is recognized to be IPv4.
AddressType_IPV6	Specific address is recognized to be IPv6.
AddressType_InterfaceName	Address is likely a interface name.

◆ ProtocolMask

enum kanzi::connect::Socket::ProtocolMask

Enumerator
Proto_IPV4
Proto_IPV6

Constructor & Destructor Documentation

◆ Socket()

kanzi::connect::Socket::Socket ( int fd = -1 )

Constructor.

Parameters

fd	File descriptor of a socket, or -1 for closed socket.

◆ ~Socket()

kanzi::connect::Socket::~Socket ( )

Destructor.

Member Function Documentation

◆ accept()

int kanzi::connect::Socket::accept ( bool loopBack = false )

Accept connection to socket.

Parameters

loopBack Accept only connections from this device.

Returns: File descriptor of the accepted socket or -1 for error.

◆ bind()

bool kanzi::connect::Socket::bind	(	int	port,
		bool	loopBack = `false`,
		bool	reuseaddr = `true`
	)

Bind an address to socket.

Parameters

port	Port to bind.
loopBack	Bind to address of this device.
reuseaddr	if true then SO_REUSEADDR is opted to socket.

Returns: True if operation was successful, otherwise false.

◆ bindToInterface()

bool kanzi::connect::Socket::bindToInterface	(	int	port,
		const string &	interfacename,
		bool	reuseaddr
	)

Binds a socket to specific port and interface.

Parameters

port	port number where to bind
interfacename	either name or ip address of the interface to bind to.
reuseaddr	if true then SO_REUSEADDR is opted to socket.

Returns: true if bound successfully, false if some errors were met.

◆ bytesAvailable()

static unsigned long kanzi::connect::Socket::bytesAvailable ( int fd )

static

Non-blocking check of how much data is available for reading from descriptor.

Parameters

fd	File descriptor.

Returns: Amount of data available.

◆ close()

int kanzi::connect::Socket::close ( )

Returns: If successful, returns 0. Otherwise returns -1 as error.

◆ connect() [1/2]

bool kanzi::connect::Socket::connect	(	const string &	server,
		int	port
	)

Connect socket to server.

Parameters

server	Server address.
port	Server port.

Returns: True if socket was successfully connected.

◆ connect() [2/2]

bool kanzi::connect::Socket::connect ( sockaddr address )

Connect socket to server.

Parameters

address Address of the server.

Returns: True if socket was successfully connected.

◆ create()

bool kanzi::connect::Socket::create	(	int	af,
		int	type,
		int	protocol
	)

Create socket.

Parameters

af	Address family.
type	Socket type.
protocol	Protocol type.

Returns: True if socket was successfully created.

◆ determineAddressType()

static enum AddressType kanzi::connect::Socket::determineAddressType ( const string & candidate )

static

Determines a type of given address.

Parameters

candidate the candidate to check.

Returns: enumeration value. if empty string is passed then its recognized as interface.

◆ getBindableAddresses()

static vector<string> kanzi::connect::Socket::getBindableAddresses	(	const string &	interfacename,
		size_t	mask = `(Proto_IPV4\|Proto_IPV6)`
	)

static

Returns a list of addresses that belong into specific interface.

Parameters

interfacename	The name of the interface for which to seach.
mask	The address types to return.

Returns: vector of addresses bound to specific interface.

◆ getFD()

int kanzi::connect::Socket::getFD ( ) const

Returns file descriptor of this socket.

Returns: File descriptor of this socket.

◆ getIPAddress()

string kanzi::connect::Socket::getIPAddress ( )

Retrieves ip address of this socket.

Returns: Ip address of this socket as string.

◆ getIPAndPort()

static bool kanzi::connect::Socket::getIPAndPort	(	sockaddr_storage *	sender,
		string &	ip,
		string &	port
	)

static

Translate sockaddr into ip address and port number.

Parameters

sender	the sender address
ip	the ip address
port	the port number.

Returns: true if retrieval succeeded, false on error.

◆ getPort()

int kanzi::connect::Socket::getPort ( )

Retrieves port of this socket.

Returns: port of this socket.

◆ getRemoteIPAddress()

string kanzi::connect::Socket::getRemoteIPAddress ( ) const

Retrieves remote ip address of this socket.

Returns: Ip address of the remote side of socket as string.

◆ getSockAddr()

sockaddr* kanzi::connect::Socket::getSockAddr ( )

Retrieves socket address of this socket.

Returns: Socket address of this socket.

◆ isConnected()

bool kanzi::connect::Socket::isConnected ( ) const

Checks whether the socket is connected.

Returns: true if socket still holds a functional connection.

◆ isDatagram()

bool kanzi::connect::Socket::isDatagram ( ) const

protected

Checks is the socket datagram type.

Returns: true if datagram type of socket

◆ listen()

int kanzi::connect::Socket::listen ( int maxConnections )

Listen for connections on this socket.

Parameters

maxConnections Maximum amount of connections.

Returns: If successful, returns 0. Otherwise returns -1 as error.

◆ looksLikeIPV6Address()

static bool kanzi::connect::Socket::looksLikeIPV6Address ( const string & address )

static

Checks whether given address looks like a IPv6 address.

Parameters

address the address to examine

Returns: true if looks like ipv6 address.

◆ read() [1/2]

static int kanzi::connect::Socket::read	(	int	fd,
		vector< char > &	data
	)

static

Read all data from file descriptor to data buffer.

Parameters

fd	File descriptor.
data	Output data.

Returns: Amount of data read, zero for EOF or -1 for error.

◆ read() [2/2]

int kanzi::connect::Socket::read ( vector< char > & data )

Read data from socket.

Parameters

data	Output data.

Returns: Amount of data read, zero for EOF or -1 for error.

◆ readOne() [1/2]

static int kanzi::connect::Socket::readOne	(	int	fd,
		char &	data
	)

static

Read one byte from a file descriptor to a character.

Parameters

fd	File descriptor.
data	byte where to read.

Returns: Amount of data read, zero for EOF or -1 for error.

◆ readOne() [2/2]

int kanzi::connect::Socket::readOne ( char & data )

Read one byte of data from socket.

Parameters

data	Output data.

Returns: Amount of data read, zero for EOF or -1 for error.

◆ setBlocking()

void kanzi::connect::Socket::setBlocking ( bool blocking )

Sets socket blocking mode.

Parameters

blocking If true, sets socket to blocking mode.

◆ shutdown()

int kanzi::connect::Socket::shutdown	(	bool	read,
		bool	write
	)

Parameters

read	if true, receptions will be disabled.
write	if true, transmissions will be disabled.

Returns: If successful, returns 0. Otherwise returns -1 as error.

◆ write()

int kanzi::connect::Socket::write ( const vector< char > & data )

Write data to socket.

Parameters

data	Data to write.

Returns: Amount of data written, zero for EOF or -1 for error.

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

connect/connection/socket.hpp

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Detailed Description

Member Enumeration Documentation

◆ AddressType

◆ ProtocolMask

Constructor & Destructor Documentation

◆ Socket()

◆ ~Socket()

Member Function Documentation

◆ accept()

◆ bind()

◆ bindToInterface()

◆ bytesAvailable()

◆ close()

◆ connect() [1/2]

◆ connect() [2/2]

◆ create()

◆ determineAddressType()

◆ getBindableAddresses()

◆ getFD()

◆ getIPAddress()

◆ getIPAndPort()

◆ getPort()

◆ getRemoteIPAddress()

◆ getSockAddr()

◆ isConnected()

◆ isDatagram()

◆ listen()

◆ looksLikeIPV6Address()

◆ read() [1/2]

◆ read() [2/2]

◆ readOne() [1/2]

◆ readOne() [2/2]

◆ setBlocking()

◆ shutdown()

◆ write()