88 lines
2.8 KiB
C++
88 lines
2.8 KiB
C++
/*
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* IPAddress.h - Base class that provides IPAddress
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* Copyright (c) 2011 Adrian McEwen. All right reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*
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* Modified by Marcelo Aquino <marceloaqno@gmail.org> for MySensors use
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*/
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#ifndef IPAddress_h
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#define IPAddress_h
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#include <stdint.h>
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#include <string>
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// A class to make it easier to handle and pass around IP addresses
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// class IPAddress: public Printable {
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class IPAddress {
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private:
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union {
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uint8_t bytes[4]; // IPv4 address
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uint32_t dword;
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} _address;
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// Access the raw byte array containing the address. Because this returns a pointer
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// to the internal structure rather than a copy of the address this function should only
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// be used when you know that the usage of the returned uint8_t* will be transient and not
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// stored.
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uint8_t* raw_address() {
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return _address.bytes;
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}
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public:
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// Constructors
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IPAddress();
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IPAddress(uint8_t first_octet, uint8_t second_octet, uint8_t third_octet, uint8_t fourth_octet);
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IPAddress(uint32_t address);
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IPAddress(const uint8_t *address);
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bool fromString(const char *address);
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bool fromString(const std::string &address) { return fromString(address.c_str()); }
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// Overloaded cast operator to allow IPAddress objects to be used where a pointer
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// to a four-byte uint8_t array is expected
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operator uint32_t() const {
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return _address.dword;
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}
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bool operator==(const IPAddress& addr) const {
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return _address.dword == addr._address.dword;
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}
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bool operator==(uint32_t addr) const {
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return _address.dword == addr;
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}
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bool operator==(const uint8_t* addr) const;
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// Overloaded index operator to allow getting and setting individual octets of the address
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uint8_t operator[](int index) const {
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return _address.bytes[index];
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}
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uint8_t& operator[](int index) {
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return _address.bytes[index];
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}
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// Overloaded copy operators to allow initialisation of IPAddress objects from other types
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IPAddress& operator=(const uint8_t *address);
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IPAddress& operator=(uint32_t address);
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std::string toString();
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friend class Client;
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};
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#endif
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