mirror of
https://github.com/arduino/Arduino.git
synced 2024-12-04 15:24:12 +01:00
563a7306b9
If the includer tries to inlcude IPAddress.h without first including WString.h the build will fail.
79 lines
2.8 KiB
C++
79 lines
2.8 KiB
C++
/*
|
|
IPAddress.h - Base class that provides IPAddress
|
|
Copyright (c) 2011 Adrian McEwen. All right reserved.
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef IPAddress_h
|
|
#define IPAddress_h
|
|
|
|
#include <stdint.h>
|
|
#include "Printable.h"
|
|
#include "WString.h"
|
|
|
|
// A class to make it easier to handle and pass around IP addresses
|
|
|
|
class IPAddress : public Printable {
|
|
private:
|
|
union {
|
|
uint8_t bytes[4]; // IPv4 address
|
|
uint32_t dword;
|
|
} _address;
|
|
|
|
// Access the raw byte array containing the address. Because this returns a pointer
|
|
// to the internal structure rather than a copy of the address this function should only
|
|
// be used when you know that the usage of the returned uint8_t* will be transient and not
|
|
// stored.
|
|
uint8_t* raw_address() { return _address.bytes; };
|
|
|
|
public:
|
|
// Constructors
|
|
IPAddress();
|
|
IPAddress(uint8_t first_octet, uint8_t second_octet, uint8_t third_octet, uint8_t fourth_octet);
|
|
IPAddress(uint32_t address);
|
|
IPAddress(const uint8_t *address);
|
|
|
|
bool fromString(const char *address);
|
|
bool fromString(const String &address) { return fromString(address.c_str()); }
|
|
|
|
// Overloaded cast operator to allow IPAddress objects to be used where a pointer
|
|
// to a four-byte uint8_t array is expected
|
|
operator uint32_t() const { return _address.dword; };
|
|
bool operator==(const IPAddress& addr) const { return _address.dword == addr._address.dword; };
|
|
bool operator==(const uint8_t* addr) const;
|
|
|
|
// Overloaded index operator to allow getting and setting individual octets of the address
|
|
uint8_t operator[](int index) const { return _address.bytes[index]; };
|
|
uint8_t& operator[](int index) { return _address.bytes[index]; };
|
|
|
|
// Overloaded copy operators to allow initialisation of IPAddress objects from other types
|
|
IPAddress& operator=(const uint8_t *address);
|
|
IPAddress& operator=(uint32_t address);
|
|
|
|
virtual size_t printTo(Print& p) const;
|
|
|
|
friend class EthernetClass;
|
|
friend class UDP;
|
|
friend class Client;
|
|
friend class Server;
|
|
friend class DhcpClass;
|
|
friend class DNSClient;
|
|
};
|
|
|
|
const IPAddress INADDR_NONE(0,0,0,0);
|
|
|
|
#endif
|