84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
/*
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* Copyright (C) 2009-2011,2013,2015,2016,2020 by Jonathan Naylor G4KLX
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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; either version 2 of the License, or
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* (at your option) any later version.
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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; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef UDPSocket_H
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#define UDPSocket_H
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#include <string>
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#if !defined(_WIN32) && !defined(_WIN64)
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#include <netdb.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <poll.h>
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#include <unistd.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <errno.h>
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#else
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#include <ws2tcpip.h>
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#endif
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#if !defined(UDP_SOCKET_MAX)
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#define UDP_SOCKET_MAX 1
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#endif
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enum IPMATCHTYPE {
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IMT_ADDRESS_AND_PORT,
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IMT_ADDRESS_ONLY
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};
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class CUDPSocket {
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public:
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CUDPSocket(const std::string& address, unsigned short port = 0U);
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CUDPSocket(unsigned short port = 0U);
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~CUDPSocket();
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bool open(unsigned int af = AF_UNSPEC);
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bool open(const sockaddr_storage& address);
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bool open(const unsigned int index, const unsigned int af, const std::string& address, const unsigned short port);
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int read(unsigned char* buffer, unsigned int length, sockaddr_storage& address, unsigned int &address_length);
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bool write(const unsigned char* buffer, unsigned int length, const sockaddr_storage& address, unsigned int address_length);
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void close();
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void close(const unsigned int index);
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static void startup();
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static void shutdown();
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static int lookup(const std::string& hostName, unsigned short port, sockaddr_storage& address, unsigned int& address_length);
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static int lookup(const std::string& hostName, unsigned short port, sockaddr_storage& address, unsigned int& address_length, struct addrinfo& hints);
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static bool match(const sockaddr_storage& addr1, const sockaddr_storage& addr2, IPMATCHTYPE type = IMT_ADDRESS_AND_PORT);
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static bool isNone(const sockaddr_storage& addr);
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private:
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std::string m_address_save;
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unsigned short m_port_save;
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std::string m_address[UDP_SOCKET_MAX];
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unsigned short m_port[UDP_SOCKET_MAX];
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unsigned int m_af[UDP_SOCKET_MAX];
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int m_fd[UDP_SOCKET_MAX];
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unsigned int m_counter;
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};
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#endif
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