New git repository for release - version 0.2.0 tagged
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Adam Ierymenko
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148
node/InetAddress.cpp
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148
node/InetAddress.cpp
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/*
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* ZeroTier One - Global Peer to Peer Ethernet
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* Copyright (C) 2012-2013 ZeroTier Networks LLC
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* --
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*
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* ZeroTier may be used and distributed under the terms of the GPLv3, which
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html
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*
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* If you would like to embed ZeroTier into a commercial application or
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* redistribute it in a modified binary form, please contact ZeroTier Networks
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* LLC. Start here: http://www.zerotier.com/
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <string>
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#include "InetAddress.hpp"
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namespace ZeroTier {
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const InetAddress InetAddress::LO4("127.0.0.1",0);
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const InetAddress InetAddress::LO6("::1",0);
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void InetAddress::set(const std::string &ip,unsigned int port)
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throw()
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{
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memset(&_sa,0,sizeof(_sa));
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if (ip.find(':') != std::string::npos) {
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_sa.sin6.sin6_family = AF_INET6;
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_sa.sin6.sin6_port = htons((uint16_t)port);
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if (inet_pton(AF_INET6,ip.c_str(),(void *)&(_sa.sin6.sin6_addr.s6_addr)) <= 0)
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_sa.saddr.sa_family = 0;
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} else {
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_sa.sin.sin_family = AF_INET;
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_sa.sin.sin_port = htons((uint16_t)port);
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if (inet_pton(AF_INET,ip.c_str(),(void *)&(_sa.sin.sin_addr.s_addr)) <= 0)
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_sa.saddr.sa_family = 0;
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}
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}
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std::string InetAddress::toString() const
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{
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char buf[128],buf2[128];
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switch(_sa.saddr.sa_family) {
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case AF_INET:
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if (inet_ntop(AF_INET,(const void *)&(_sa.sin.sin_addr.s_addr),buf,sizeof(buf))) {
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sprintf(buf2,"%s/%u",buf,(unsigned int)ntohs(_sa.sin.sin_port));
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return std::string(buf2);
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}
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break;
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case AF_INET6:
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if (inet_ntop(AF_INET6,(const void *)&(_sa.sin6.sin6_addr.s6_addr),buf,sizeof(buf))) {
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sprintf(buf2,"%s/%u",buf,(unsigned int)ntohs(_sa.sin6.sin6_port));
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return std::string(buf2);
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}
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break;
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}
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return std::string();
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}
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void InetAddress::fromString(const std::string &ipSlashPort)
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{
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std::size_t slashAt = ipSlashPort.find('/');
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if ((slashAt == std::string::npos)||(slashAt >= ipSlashPort.length()))
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set(ipSlashPort,0);
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else {
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long p = strtol(ipSlashPort.substr(slashAt+1).c_str(),(char **)0,10);
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if ((p > 0)&&(p <= 0xffff))
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set(ipSlashPort.substr(0,slashAt),(unsigned int)p);
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else set(ipSlashPort.substr(0,slashAt),0);
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}
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}
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std::string InetAddress::toIpString() const
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{
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char buf[128];
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switch(_sa.saddr.sa_family) {
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case AF_INET:
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if (inet_ntop(AF_INET,(const void *)&(_sa.sin.sin_addr.s_addr),buf,sizeof(buf)))
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return std::string(buf);
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break;
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case AF_INET6:
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if (inet_ntop(AF_INET6,(const void *)&(_sa.sin6.sin6_addr.s6_addr),buf,sizeof(buf)))
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return std::string(buf);
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break;
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}
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return std::string();
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}
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bool InetAddress::operator==(const InetAddress &a) const
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throw()
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{
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if (_sa.saddr.sa_family == AF_INET) {
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if (a._sa.saddr.sa_family == AF_INET)
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return ((_sa.sin.sin_addr.s_addr == a._sa.sin.sin_addr.s_addr)&&(_sa.sin.sin_port == a._sa.sin.sin_port));
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return false;
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} else if (_sa.saddr.sa_family == AF_INET6) {
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if (a._sa.saddr.sa_family == AF_INET6) {
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if (_sa.sin6.sin6_port == a._sa.sin6.sin6_port)
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return (!memcmp(_sa.sin6.sin6_addr.s6_addr,a._sa.sin6.sin6_addr.s6_addr,sizeof(_sa.sin6.sin6_addr.s6_addr)));
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}
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return false;
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} else if (!_sa.saddr.sa_family)
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return (!a._sa.saddr.sa_family);
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return (!memcmp(&_sa,&a._sa,sizeof(_sa)));
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}
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bool InetAddress::operator<(const InetAddress &a) const
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throw()
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{
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if (_sa.saddr.sa_family == AF_INET) {
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if (a._sa.saddr.sa_family == AF_INET)
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return ((ntohl(_sa.sin.sin_addr.s_addr < ntohl(a._sa.sin.sin_addr.s_addr)))||((_sa.sin.sin_addr.s_addr == a._sa.sin.sin_addr.s_addr)&&(ntohs(_sa.sin.sin_port) < ntohs(a._sa.sin.sin_port))));
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else if (a._sa.saddr.sa_family == AF_INET6)
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return true;
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} else if (_sa.saddr.sa_family == AF_INET6) {
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if (a._sa.saddr.sa_family == AF_INET6) {
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int cmp = memcmp(_sa.sin6.sin6_addr.s6_addr,a._sa.sin6.sin6_addr.s6_addr,16);
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return ((cmp < 0)||((!cmp)&&(ntohs(_sa.sin6.sin6_port) < ntohs(a._sa.sin6.sin6_port))));
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} else if (a._sa.saddr.sa_family == AF_INET)
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return false;
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}
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return (_sa.saddr.sa_family < a._sa.saddr.sa_family);
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}
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} // namespace ZeroTier
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