# address.h

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    00001 /* $Id$ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * OpenTTD 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, version 2.
    00006  * OpenTTD 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.
    00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
    00008  */
    00009
    00012 #ifndef NETWORK_CORE_ADDRESS_H
    00013 #define NETWORK_CORE_ADDRESS_H
    00014
    00015 #include "os_abstraction.h"
    00016 #include "config.h"
    00017 #include "../../string_func.h"
    00018 #include "../../core/smallmap_type.hpp"
    00019
    00020 #ifdef ENABLE_NETWORK
    00021
    00022 class NetworkAddress;
    00023 typedef SmallVector<NetworkAddress, 4> NetworkAddressList;
    00024 typedef SmallMap<NetworkAddress, SOCKET, 4> SocketList;
    00025
    00031 class NetworkAddress {
    00032 private:
    00033   char hostname[NETWORK_HOSTNAME_LENGTH];
    00034   int address_length;
    00035   sockaddr_storage address;
    00036
    00042   typedef SOCKET (*LoopProc)(addrinfo *runp);
    00043
    00044   SOCKET Resolve(int family, int socktype, int flags, SocketList *sockets, LoopProc func);
    00045 public:
    00050   NetworkAddress(struct sockaddr_storage &address, int address_length) :
    00051     address_length(address_length),
    00052     address(address)
    00053   {
    00054     *this->hostname = '\0';
    00055   }
    00056
    00061   NetworkAddress(sockaddr *address, int address_length) :
    00062     address_length(address_length)
    00063   {
    00064     *this->hostname = '\0';
    00065     memset(&this->address, 0, sizeof(this->address));
    00066     memcpy(&this->address, address, address_length);
    00067   }
    00068
    00075   NetworkAddress(const char *hostname = "", uint16 port = 0, int family = AF_UNSPEC) :
    00076     address_length(0)
    00077   {
    00078     /* Also handle IPv6 bracket enclosed hostnames */
    00079     if (StrEmpty(hostname)) hostname = "";
    00080     if (*hostname == '[') hostname++;
    00081     strecpy(this->hostname, StrEmpty(hostname) ? "" : hostname, lastof(this->hostname));
    00082     char *tmp = strrchr(this->hostname, ']');
    00083     if (tmp != NULL) *tmp = '\0';
    00084
    00085     memset(&this->address, 0, sizeof(this->address));
    00086     this->address.ss_family = family;
    00087     this->SetPort(port);
    00088   }
    00089
    00094   NetworkAddress(const NetworkAddress &address)
    00095   {
    00096     memcpy(this, &address, sizeof(*this));
    00097   }
    00098
    00099   const char *GetHostname();
    00100   void GetAddressAsString(char *buffer, const char *last, bool with_family = true);
    00101   const char *GetAddressAsString(bool with_family = true);
    00102   const sockaddr_storage *GetAddress();
    00103
    00108   int GetAddressLength()
    00109   {
    00110     /* Resolve it if we didn't do it already */
    00111     if (!this->IsResolved()) this->GetAddress();
    00112     return this->address_length;
    00113   }
    00114
    00115   uint16 GetPort() const;
    00116   void SetPort(uint16 port);
    00117
    00122   bool IsResolved() const
    00123   {
    00124     return this->address_length != 0;
    00125   }
    00126
    00127   bool IsFamily(int family);
    00128   bool IsInNetmask(char *netmask);
    00129
    00135   int CompareTo(NetworkAddress &address)
    00136   {
    00137     int r = this->GetAddressLength() - address.GetAddressLength();
    00138     if (r == 0) r = this->address.ss_family - address.address.ss_family;
    00139     if (r == 0) r = memcmp(&this->address, &address.address, this->address_length);
    00140     if (r == 0) r = this->GetPort() - address.GetPort();
    00141     return r;
    00142   }
    00143
    00149   bool operator == (NetworkAddress &address)
    00150   {
    00151     return this->CompareTo(address) == 0;
    00152   }
    00153
    00159   bool operator == (NetworkAddress &address) const
    00160   {
    00161     return const_cast<NetworkAddress*>(this)->CompareTo(address) == 0;
    00162   }
    00168   bool operator != (NetworkAddress address) const
    00169   {
    00170     return const_cast<NetworkAddress*>(this)->CompareTo(address) != 0;
    00171   }
    00172
    00177   bool operator < (NetworkAddress &address)
    00178   {
    00179     return this->CompareTo(address) < 0;
    00180   }
    00181
    00182   SOCKET Connect();
    00183   void Listen(int socktype, SocketList *sockets);
    00184
    00185   static const char *SocketTypeAsString(int socktype);
    00186   static const char *AddressFamilyAsString(int family);
    00187 };
    00188
    00189 #endif /* ENABLE_NETWORK */
    00190 #endif /* NETWORK_CORE_ADDRESS_H */