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