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Connection.hh

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00001 // Connection.hh - source file for the mailfilter program 00002 // Copyright (c) 2000 - 2004 Andreas Bauer <baueran@in.tum.de> 00003 // 00004 // This program is free software; you can redistribute it and/or modify 00005 // it under the terms of the GNU General Public License as published by 00006 // the Free Software Foundation; either version 2 of the License, or 00007 // (at your option) any later version. 00008 // 00009 // This program is distributed in the hope that it will be useful, 00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 // GNU General Public License for more details. 00013 // 00014 // You should have received a copy of the GNU General Public License 00015 // along with this program; if not, write to the Free Software 00016 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 00017 // USA. 00018 00019 #ifndef CONNECTION_HH 00020 #define CONNECTION_HH 00021 00022 #ifndef MAX_BYTES 00023 #define MAX_BYTES 512 00024 #endif 00025 00026 #include <string> 00027 00028 using namespace std; 00029 00030 namespace conn { 00031 00032 class Connection { 00033 protected: 00034 bool isHeaderEnd(const string&); 00035 virtual int connectHost(const string&, int, int) = 0; // Establish network connection to the e-mail server on certain port number 00036 virtual int disconnectHost(void) = 0; // Close network connection to the e-mail server 00037 virtual int sendHost(const string&) = 0; // Send command to the e-mail server 00038 virtual string receiveHost(const bool) = 0; // Receive (string) results from the e-mail server (after a command was issued) 00039 // If argument is 'true', we expect a single-line response from the server, otherwise multi-line response is expected 00040 00041 public: 00042 virtual ~Connection() = 0; 00043 }; 00044 00045 // Exceptions 00046 class IOException { }; 00047 class ConnectionTimeOut { }; 00048 00049 } 00050 00051 #endif

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