d8223ffa75
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!
(cherry picked from commit c7bc44d5ad)
240 lines
6.2 KiB
C++
240 lines
6.2 KiB
C++
/*************************************************************************/
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/* ip_address.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "ip_address.h"
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/*
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IP_Address::operator Variant() const {
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return operator String();
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}*/
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#include <string.h>
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#include <stdio.h>
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IP_Address::operator String() const {
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if(is_ipv4())
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// IPv4 address mapped to IPv6
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return itos(field8[12])+"."+itos(field8[13])+"."+itos(field8[14])+"."+itos(field8[15]);
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String ret;
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for (int i=0; i<8; i++) {
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if (i > 0)
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ret = ret + ":";
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uint16_t num = (field8[i*2] << 8) + field8[i*2+1];
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ret = ret + String::num_int64(num, 16);
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};
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return ret;
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}
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static void _parse_hex(const String& p_string, int p_start, uint8_t* p_dst) {
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uint16_t ret = 0;
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for (int i=p_start; i<p_start + 4; i++) {
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if (i >= p_string.length()) {
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break;
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};
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int n = 0;
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CharType c = p_string[i];
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if (c >= '0' && c <= '9') {
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n = c - '0';
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} else if (c >= 'a' && c <= 'f') {
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n = 10 + (c - 'a');
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} else if (c >= 'A' && c <= 'F') {
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n = 10 + (c - 'A');
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} else if (c == ':') {
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break;
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} else {
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ERR_EXPLAIN("Invalid character in ipv6 address: " + p_string);
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ERR_FAIL();
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};
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ret = ret << 4;
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ret += n;
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};
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p_dst[0] = ret >> 8;
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p_dst[1] = ret & 0xff;
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};
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void IP_Address::_parse_ipv6(const String& p_string) {
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static const int parts_total = 8;
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int parts[parts_total] = {0};
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int parts_count = 0;
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bool part_found = false;
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bool part_skip = false;
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bool part_ipv4 = false;
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int parts_idx = 0;
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for (int i=0; i<p_string.length(); i++) {
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CharType c = p_string[i];
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if (c == ':') {
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if (i == 0) {
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continue; // next must be a ":"
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};
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if (!part_found) {
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part_skip = true;
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parts[parts_idx++] = -1;
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};
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part_found = false;
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} else if (c == '.') {
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part_ipv4 = true;
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} else if ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F')) {
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if (!part_found) {
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parts[parts_idx++] = i;
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part_found = true;
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++parts_count;
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};
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} else {
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ERR_EXPLAIN("Invalid character in IPv6 address: " + p_string);
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ERR_FAIL();
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};
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};
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int parts_extra = 0;
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if (part_skip) {
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parts_extra = parts_total - parts_count;
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};
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int idx = 0;
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for (int i=0; i<parts_idx; i++) {
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if (parts[i] == -1) {
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for (int j=0; j<parts_extra; j++) {
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field16[idx++] = 0;
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};
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continue;
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};
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if (part_ipv4 && i == parts_idx - 1) {
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_parse_ipv4(p_string, parts[i], (uint8_t*)&field16[idx]); // should be the last one
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} else {
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_parse_hex(p_string, parts[i], (uint8_t*)&(field16[idx++]));
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};
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};
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};
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void IP_Address::_parse_ipv4(const String& p_string, int p_start, uint8_t* p_ret) {
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String ip;
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if (p_start != 0) {
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ip = p_string.substr(p_start, p_string.length() - p_start);
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} else {
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ip = p_string;
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};
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int slices = ip.get_slice_count(".");
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if (slices!=4) {
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ERR_EXPLAIN("Invalid IP Address String: "+ip);
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ERR_FAIL();
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}
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for(int i=0;i<4;i++) {
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p_ret[i]=ip.get_slicec('.',i).to_int();
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}
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};
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void IP_Address::clear() {
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memset(&field8[0], 0, sizeof(field8));
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};
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bool IP_Address::is_ipv4() const{
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return (field32[0]==0 && field32[1]==0 && field16[4]==0 && field16[5]==0xffff);
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}
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const uint8_t *IP_Address::get_ipv4() const{
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ERR_FAIL_COND_V(!is_ipv4(),0);
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return &(field8[12]);
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}
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void IP_Address::set_ipv4(const uint8_t *p_ip) {
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clear();
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field16[5]=0xffff;
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field32[3]=*((const uint32_t *)p_ip);
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}
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const uint8_t *IP_Address::get_ipv6() const{
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return field8;
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}
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void IP_Address::set_ipv6(const uint8_t *p_buf) {
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clear();
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for (int i=0; i<16; i++)
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field8[i] = p_buf[i];
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}
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IP_Address::IP_Address(const String& p_string) {
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clear();
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if (p_string.find(":") >= 0) {
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_parse_ipv6(p_string);
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} else {
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// Mapped to IPv6
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field16[5] = 0xffff;
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_parse_ipv4(p_string, 0, &field8[12]);
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};
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}
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_FORCE_INLINE_ static void _32_to_buf(uint8_t* p_dst, uint32_t p_n) {
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p_dst[0] = (p_n >> 24) & 0xff;
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p_dst[1] = (p_n >> 16) & 0xff;
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p_dst[2] = (p_n >> 8) & 0xff;
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p_dst[3] = (p_n >> 0) & 0xff;
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};
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IP_Address::IP_Address(uint32_t p_a,uint32_t p_b,uint32_t p_c,uint32_t p_d, bool is_v6) {
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clear();
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if (!is_v6) {
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// Mapped to IPv6
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field16[5]=0xffff;
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field8[12]=p_a;
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field8[13]=p_b;
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field8[14]=p_c;
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field8[15]=p_d;
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} else {
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_32_to_buf(&field8[0], p_a);
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_32_to_buf(&field8[4], p_b);
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_32_to_buf(&field8[8], p_c);
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_32_to_buf(&field8[12], p_d);
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}
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}
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