| 1 | /* |
| 2 | IPAddress.cpp - Base class that provides IPAddress |
| 3 | Copyright (c) 2011 Adrian McEwen. All right reserved. |
| 4 | |
| 5 | This library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | This library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with this library; if not, write to the Free Software |
| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 |
|
| 20 | #include <Arduino.h> |
| 21 | #include <IPAddress.h> |
| 22 |
|
| 23 | IPAddress::IPAddress() |
| 24 | { |
| 25 | _address.dword = 0; |
| 26 | } |
| 27 |
|
| 28 | IPAddress::IPAddress(uint8_t first_octet, uint8_t second_octet, uint8_t third_octet, uint8_t fourth_octet) |
| 29 | { |
| 30 | _address.bytes[0] = first_octet; |
| 31 | _address.bytes[1] = second_octet; |
| 32 | _address.bytes[2] = third_octet; |
| 33 | _address.bytes[3] = fourth_octet; |
| 34 | } |
| 35 |
|
| 36 | IPAddress::IPAddress(uint32_t address) |
| 37 | { |
| 38 | _address.dword = address; |
| 39 | } |
| 40 |
|
| 41 | IPAddress::IPAddress(const uint8_t *address) |
| 42 | { |
| 43 | memcpy(_address.bytes, address, sizeof(_address.bytes)); |
| 44 | } |
| 45 |
|
| 46 | bool IPAddress::fromString(const char *address) |
| 47 | { |
| 48 | uint16_t acc = 0; // Accumulator |
| 49 | uint8_t dots = 0; |
| 50 |
|
| 51 | while (*address) |
| 52 | { |
| 53 | char c = *address++; |
| 54 | if (c >= '0' && c <= '9') |
| 55 | { |
| 56 | acc = acc * 10 + (c - '0'); |
| 57 | if (acc > 255) { |
| 58 | // Value out of [0..255] range |
| 59 | return false; |
| 60 | } |
| 61 | } |
| 62 | else if (c == '.') |
| 63 | { |
| 64 | if (dots == 3) { |
| 65 | // Too much dots (there must be 3 dots) |
| 66 | return false; |
| 67 | } |
| 68 | _address.bytes[dots++] = acc; |
| 69 | acc = 0; |
| 70 | } |
| 71 | else |
| 72 | { |
| 73 | // Invalid char |
| 74 | return false; |
| 75 | } |
| 76 | } |
| 77 |
|
| 78 | if (dots != 3) { |
| 79 | // Too few dots (there must be 3 dots) |
| 80 | return false; |
| 81 | } |
| 82 | _address.bytes[3] = acc; |
| 83 | return true; |
| 84 | } |
| 85 |
|
| 86 | IPAddress& IPAddress::operator=(const uint8_t *address) |
| 87 | { |
| 88 | memcpy(_address.bytes, address, sizeof(_address.bytes)); |
| 89 | return *this; |
| 90 | } |
| 91 |
|
| 92 | IPAddress& IPAddress::operator=(uint32_t address) |
| 93 | { |
| 94 | _address.dword = address; |
| 95 | return *this; |
| 96 | } |
| 97 |
|
| 98 | bool IPAddress::operator==(const uint8_t* addr) const |
| 99 | { |
| 100 | return memcmp(addr, _address.bytes, sizeof(_address.bytes)) == 0; |
| 101 | } |
| 102 |
|
| 103 | size_t IPAddress::printTo(Print& p) const |
| 104 | { |
| 105 | size_t n = 0; |
| 106 | for (int i =0; i < 3; i++) |
| 107 | { |
| 108 | n += p.print(_address.bytes[i], DEC); |
| 109 | n += p.print('.'); |
| 110 | } |
| 111 | n += p.print(_address.bytes[3], DEC); |
| 112 | return n; |
| 113 | } |
| 114 |
|
| 115 |
|
Index