OPeNDAP Hyrax Back End Server (BES)
Updated for version 3.8.3
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00001 // Socket.cc 00002 00003 // This file is part of bes, A C++ back-end server implementation framework 00004 // for the OPeNDAP Data Access Protocol. 00005 00006 // Copyright (c) 2004-2009 University Corporation for Atmospheric Research 00007 // Author: Patrick West <pwest@ucar.edu> and Jose Garcia <jgarcia@ucar.edu> 00008 // 00009 // This library is free software; you can redistribute it and/or 00010 // modify it under the terms of the GNU Lesser General Public 00011 // License as published by the Free Software Foundation; either 00012 // version 2.1 of the License, or (at your option) any later version. 00013 // 00014 // This library is distributed in the hope that it will be useful, 00015 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00017 // Lesser General Public License for more details. 00018 // 00019 // You should have received a copy of the GNU Lesser General Public 00020 // License along with this library; if not, write to the Free Software 00021 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00022 // 00023 // You can contact University Corporation for Atmospheric Research at 00024 // 3080 Center Green Drive, Boulder, CO 80301 00025 00026 // (c) COPYRIGHT University Corporation for Atmospheric Research 2004-2005 00027 // Please read the full copyright statement in the file COPYRIGHT_UCAR. 00028 // 00029 // Authors: 00030 // pwest Patrick West <pwest@ucar.edu> 00031 // jgarcia Jose Garcia <jgarcia@ucar.edu> 00032 00033 #include "config.h" 00034 00035 #include <cstdio> 00036 #include <cerrno> 00037 #include <cstring> 00038 00039 #ifdef HAVE_UNISTD_H 00040 #include <unistd.h> 00041 #endif 00042 00043 #include <sys/types.h> 00044 #include <sys/socket.h> 00045 #include <arpa/inet.h> 00046 #ifdef HAVE_UNISTD_H 00047 #include <unistd.h> 00048 #endif 00049 00050 #include "Socket.h" 00051 #include "BESInternalError.h" 00052 00053 Socket::Socket( int socket, struct sockaddr *addr ) 00054 : _socket( socket ), 00055 _connected( true ), 00056 _listening( false ), 00057 _addr_set( true ) 00058 { 00059 char ip[46]; 00060 unsigned int port; 00061 /* ... */ 00062 switch (addr->sa_family) { 00063 case AF_INET: 00064 inet_ntop (AF_INET, &(((struct sockaddr_in *)addr)->sin_addr), ip, sizeof (ip)); 00065 port = ntohs (((struct sockaddr_in *)addr)->sin_port); 00066 break; 00067 case AF_INET6: 00068 inet_ntop (AF_INET6, &(((struct sockaddr_in6 *)addr)->sin6_addr), ip, sizeof (ip)); 00069 port = ntohs (((struct sockaddr_in6 *)addr)->sin6_port); 00070 break; 00071 default: 00072 snprintf (ip, sizeof (ip), "UNKNOWN FAMILY: %d", addr->sa_family); 00073 port = 0; 00074 break; 00075 } 00076 _port = port ; 00077 _ip = ip ; 00078 } 00079 00080 void 00081 Socket::close() 00082 { 00083 if( _connected ) 00084 { 00085 ::close( _socket ) ; 00086 _socket = 0 ; 00087 _connected = false ; 00088 _listening = false ; 00089 } 00090 } 00091 00092 void 00093 Socket::send( const string &str, int start, int end ) 00094 { 00095 string send_str = str.substr( start, end ) ; 00096 int bytes_written = write( _socket, send_str.c_str(), send_str.length() ) ; 00097 if( bytes_written == -1 ) 00098 { 00099 string err( "socket failure, writing on stream socket" ) ; 00100 const char* error_info = strerror( errno ) ; 00101 if( error_info ) 00102 err += " " + (string)error_info ; 00103 throw BESInternalError( err, __FILE__, __LINE__ ) ; 00104 } 00105 } 00106 00107 int 00108 Socket::receive( char *inBuff, const int inSize ) 00109 { 00110 int bytesRead = 0 ; 00111 if( ( bytesRead = read( _socket, inBuff, inSize ) ) < 1 ) 00112 { 00113 string err( "socket failure, reading on stream socket: " ) ; 00114 const char *error_info = strerror( errno ) ; 00115 if( error_info ) 00116 err += " " + (string)error_info ; 00117 throw BESInternalError( err, __FILE__, __LINE__ ) ; 00118 } 00119 //inBuff[bytesRead] = '\0' ; 00120 return bytesRead ; 00121 } 00122 00123 #if 0 00124 // removed jhrg 5/5/11 00125 void 00126 Socket::sync() 00127 { 00128 #if 0 00129 // fsync does not work for sockets. 00130 fsync( _socket ) ; 00131 #endif 00132 } 00133 #endif 00134 00141 void 00142 Socket::dump( ostream &strm ) const 00143 { 00144 strm << BESIndent::LMarg << "Socket::dump - (" 00145 << (void *)this << ")" << endl ; 00146 BESIndent::Indent() ; 00147 strm << BESIndent::LMarg << "socket: " << _socket << endl ; 00148 strm << BESIndent::LMarg << "is connected? " << _connected << endl ; 00149 strm << BESIndent::LMarg << "is listening? " << _listening << endl ; 00150 strm << BESIndent::LMarg << "socket address set? " << _addr_set << endl ; 00151 if( _addr_set ) 00152 { 00153 strm << BESIndent::LMarg << "socket port: " << _port << endl; 00154 strm << BESIndent::LMarg << "socket ip: " << _ip << endl; 00155 } 00156 BESIndent::UnIndent() ; 00157 } 00158