arduino-esp32/cores/esp32/IPv6Address.cpp
2017-01-06 00:54:50 +02:00

91 lines
2.7 KiB
C++

/*
IPv6Address.cpp - Base class that provides IPv6Address
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
*/
#include <Arduino.h>
#include <IPv6Address.h>
#include <Print.h>
IPv6Address::IPv6Address()
{
memset(_address.bytes, 0, sizeof(_address.bytes));
}
IPv6Address::IPv6Address(const uint8_t *address)
{
memcpy(_address.bytes, address, sizeof(_address.bytes));
}
IPv6Address::IPv6Address(const uint32_t *address)
{
memcpy(_address.bytes, (const uint8_t *)address, sizeof(_address.bytes));
}
IPv6Address& IPv6Address::operator=(const uint8_t *address)
{
memcpy(_address.bytes, address, sizeof(_address.bytes));
return *this;
}
bool IPv6Address::operator==(const uint8_t* addr) const
{
return memcmp(addr, _address.bytes, sizeof(_address.bytes)) == 0;
}
size_t IPv6Address::printTo(Print& p) const
{
size_t n = 0;
for(int i = 0; i < 16; i+=2) {
if(i){
n += p.print(':');
}
n += p.printf("%02x", _address.bytes[i]);
n += p.printf("%02x", _address.bytes[i+1]);
}
return n;
}
String IPv6Address::toString() const
{
char szRet[40];
sprintf(szRet,"%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x",
_address.bytes[0], _address.bytes[1], _address.bytes[2], _address.bytes[3],
_address.bytes[4], _address.bytes[5], _address.bytes[6], _address.bytes[7],
_address.bytes[8], _address.bytes[9], _address.bytes[10], _address.bytes[11],
_address.bytes[12], _address.bytes[13], _address.bytes[14], _address.bytes[15]);
return String(szRet);
}
bool IPv6Address::fromString(const char *address)
{
//format 0011:2233:4455:6677:8899:aabb:ccdd:eeff
if(strlen(address) != 39){
return false;
}
char * pos = (char *)address;
size_t i = 0;
for(i = 0; i < 16; i+=2) {
if(!sscanf(pos, "%2hhx", &_address.bytes[i]) || !sscanf(pos+2, "%2hhx", &_address.bytes[i+1])){
return false;
}
pos += 5;
}
return true;
}