mirror of
https://github.com/EQEmu/Server.git
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73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
/**
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* EQEmulator: Everquest Server Emulator
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* Copyright (C) 2001-2019 EQEmulator Development Team (https://github.com/EQEmu/Server)
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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; version 2 of the License.
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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 except by those people which sell it, which
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* are required to give you total support for your newly bought product;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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* A PARTICULAR PURPOSE. See the 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include "ip_util.h"
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/**
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* @param ip
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* @return
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*/
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uint32_t IpUtil::IPToUInt(const std::string &ip)
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{
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int a, b, c, d;
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uint32_t addr = 0;
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if (sscanf(ip.c_str(), "%d.%d.%d.%d", &a, &b, &c, &d) != 4) {
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return 0;
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}
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addr = a << 24;
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addr |= b << 16;
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addr |= c << 8;
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addr |= d;
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return addr;
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}
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/**
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* @param ip
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* @param network
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* @param mask
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* @return
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*/
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bool IpUtil::IsIpInRange(const std::string &ip, const std::string &network, const std::string &mask)
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{
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uint32_t ip_addr = IpUtil::IPToUInt(ip);
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uint32_t network_addr = IpUtil::IPToUInt(network);
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uint32_t mask_addr = IpUtil::IPToUInt(mask);
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uint32_t net_lower = (network_addr & mask_addr);
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uint32_t net_upper = (net_lower | (~mask_addr));
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return ip_addr >= net_lower && ip_addr <= net_upper;
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}
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/**
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* @param ip
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* @return
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*/
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bool IpUtil::IsIpInPrivateRfc1918(const std::string &ip)
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{
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return (
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IpUtil::IsIpInRange(ip, "10.0.0.0", "255.0.0.0") ||
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IpUtil::IsIpInRange(ip, "172.16.0.0", "255.240.0.0") ||
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IpUtil::IsIpInRange(ip, "192.168.0.0", "255.255.0.0")
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);
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}
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