src/NetworkFunctions.h

   1 //
   2 // This file is part of the aMule Project.
   3 //
   4 // Copyright (c) 2004-2011 Angel Vidal ( kry@amule.org )
   5 // Copyright (c) 2003-2011 aMule Team ( admin@amule.org / http://www.amule.org )
   6 // Copyright (c) 2002-2011 Merkur ( devs@emule-project.net / http://www.emule-project.net )
   7 //
   8 // Any parts of this program derived from the xMule, lMule or eMule project,
   9 // or contributed by third-party developers are copyrighted by their
  10 // respective authors.
  11 //
  12 // This program is free software; you can redistribute it and/or modify
  13 // it under the terms of the GNU General Public License as published by
  14 // the Free Software Foundation; either version 2 of the License, or
  15 // (at your option) any later version.
  16 //
  17 // This program is distributed in the hope that it will be useful,
  18 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 // GNU General Public License for more details.
  21 //
  22 // You should have received a copy of the GNU General Public License
  23 // along with this program; if not, write to the Free Software
  24 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA
  25 //
  26
  27 #ifndef NETWORK_FUNCTIONS_H
  28 #define NETWORK_FUNCTIONS_H
  29
  30 #include "Types.h"              // Needed for uint16 and uint32
  31 #include <common/Format.h>      // Needed for CFormat
  32
  33 // Network ip/host handling functions
  34 // These functions take IPs in anti-host order
  35
  36 inline wxString Uint32toStringIP(uint32 ip)
  37 {
  38         return CFormat(wxT("%u.%u.%u.%u")) % (uint8)ip % (uint8)(ip>>8) % (uint8)(ip>>16) % (uint8)(ip>>24);
  39 }
  40
  41 inline wxString Uint32_16toStringIP_Port(uint32 ip, uint16 port)
  42 {
  43         return CFormat(wxT("%u.%u.%u.%u:%u")) % (uint8)ip % (uint8)(ip>>8) % (uint8)(ip>>16) % (uint8)(ip>>24) % port;
  44 }
  45
  46 // These functions take IPs in host-order
  47 inline wxString KadIPToString(uint32_t ip)
  48 {
  49         return CFormat(wxT("%u.%u.%u.%u")) % (uint8_t)(ip >> 24) % (uint8_t)(ip >> 16) % (uint8_t)(ip >> 8) % (uint8_t)ip;
  50 }
  51
  52 inline wxString KadIPPortToString(uint32_t ip, uint16_t port)
  53 {
  54         return CFormat(wxT("%u.%u.%u.%u:%u")) % (uint8_t)(ip >> 24) % (uint8_t)(ip >> 16) % (uint8_t)(ip >> 8) % (uint8_t)ip % port;
  55 }
  56
  57 /**
  58  * Parses a String-IP and saves the IP in the referenced variable.
  59  *
  60  * @param strIP A string-ip in the format "a.b.c.d".
  61  * @param Ip The value to save the result in.
  62  * @return True if the string was parsed, false otherwise.
  63  *
  64  * When parsing the IP address, whitespace before or after the
  65  * ip-address is ignored and the resulting IP is saved in
  66  * anti-host order.
  67  *
  68  * The reason for the existance of this function is the fact that
  69  * the standard inet_aton function treats numbers with 0 prefixed
  70  * as octals, which is desirable.
  71  *
  72  * Note: The reference value will not be changed unless the string
  73  *       contains a valid IP adress.
  74  */
  75 bool    StringIPtoUint32(const wxString &strIP, uint32& Ip);
  76
  77
  78 /**
  79  * Parses a String-IP and returns the IP or 0 if it was invalid.
  80  *
  81  * @param strIP A string-ip in the format "a.b.c.d".
  82  * @return The resulting IP-address or zero if invalid (or 0.0.0.0).
  83  *
  84  * The IP will be saved in anti-host order.
  85  */
  86 inline uint32 StringIPtoUint32(const wxString &strIP)
  87 {
  88         uint32 ip = 0;
  89         StringIPtoUint32( strIP, ip );
  90
  91         return ip;
  92 }
  93 /**
  94  * Parses a String-IHost and returns the IP or 0 if it was invalid.
  95  *
  96  * @param Host A string with the Host to convert.
  97  * @return The resulting IP-address or zero if invalid (or 0.0.0.0).
  98  *
  99  * The IP will be saved in anti-host order.
 100  */
 101 uint32 StringHosttoUint32(const wxString &Host);
 102
 103 /**
 104  * Checks for invalid IP-values.
 105  *
 106  * @param IP the IP-address to check.
 107  * @param filterLAN Specifies if LAN IP-ranges should be filtered.
 108  * @return True if it was valid, false otherwise.
 109  *
 110  * Note: IP must be in anti-host order (BE on LE platform, LE on BE platform).
 111  */
 112 bool IsGoodIP( uint32 IP, bool filterLAN );
 113
 114 inline bool IsGoodIPPort(uint32 nIP, uint16 nPort)
 115 {
 116         return IsGoodIP(nIP, true) && nPort!=0;
 117 }
 118
 119 #define HIGHEST_LOWID_ED2K_KAD          16777216
 120
 121 inline bool IsLowID(uint32 id) {
 122         return (id < HIGHEST_LOWID_ED2K_KAD);
 123 }
 124
 125 /**
 126  * Checks for LAN IPs.
 127  *
 128  * @param ip The IP-address to check.
 129  * @return True if it was a LAN IP, false otherwise.
 130  *
 131  * @note IP must be in anti-host order.
 132  */
 133 bool IsLanIP(uint32_t ip) throw();
 134
 135 #endif // NETWORK_FUNCTIONS_H
 136 // File_checked_for_headers