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Diffstat (limited to 'lib/InetAddress.cpp')
-rw-r--r-- | lib/InetAddress.cpp | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/lib/InetAddress.cpp b/lib/InetAddress.cpp new file mode 100644 index 0000000..d92e1b9 --- /dev/null +++ b/lib/InetAddress.cpp @@ -0,0 +1,171 @@ +/* + Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Her Majesty the + Queen in Right of Canada (Communications Research Center Canada) + + Copyright (C) 2016 + Matthias P. Braendli, matthias.braendli@mpb.li + + http://www.opendigitalradio.org + */ +/* + This file is part of ODR-DabMux. + + ODR-DabMux 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, either version 3 of the + License, or (at your option) any later version. + + ODR-DabMux 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. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "InetAddress.h" +#include <iostream> +#include <stdio.h> +#include <errno.h> +#include <string.h> + +#ifdef TRACE_ON +# ifndef TRACE_CLASS +# define TRACE_CLASS(clas, func) cout <<"-" <<(clas) <<"\t(" <<this <<")::" <<(func) <<endl +# define TRACE_STATIC(clas, func) cout <<"-" <<(clas) <<"\t(static)::" <<(func) <<endl +# endif +#else +# ifndef TRACE_CLASS +# define TRACE_CLASS(clas, func) +# define TRACE_STATIC(clas, func) +# endif +#endif + + +int inetErrNo = 0; +const char *inetErrMsg = nullptr; +const char *inetErrDesc = nullptr; + + +/** + * Constructs an IP address. + * @param port The port of this address + * @param name The name of this address + */ +InetAddress::InetAddress(int port, const char* name) { + TRACE_CLASS("InetAddress", "InetAddress(int, char)"); + addr.sin_family = PF_INET; + addr.sin_addr.s_addr = htons(INADDR_ANY); + addr.sin_port = htons(port); + if (name) + setAddress(name); +} + + +/** + * Constructs a copy of inet + * @param inet The address to be copied + */ +InetAddress::InetAddress(const InetAddress &inet) { + TRACE_CLASS("InetAddress", "InetAddress(InetAddress)"); + memcpy(&addr, &inet.addr, sizeof(addr)); +} + + +/// Destructor +InetAddress::~InetAddress() { + TRACE_CLASS("InetAddress" ,"~InetAddress()"); +} + + +/// Returns the raw IP address of this InetAddress object. +sockaddr *InetAddress::getAddress() { + TRACE_CLASS("InetAddress", "getAddress()"); + return (sockaddr *)&addr; +} + + +/// Return the port of this address. +int InetAddress::getPort() +{ + TRACE_CLASS("InetAddress", "getPort()"); + return ntohs(addr.sin_port); +} + + +/** + * Returns the IP address string "%d.%d.%d.%d". + * @return IP address + */ +const char *InetAddress::getHostAddress() { + TRACE_CLASS("InetAddress", "getHostAddress()"); + return inet_ntoa(addr.sin_addr); +} + + +/// Returns true if this address is multicast +bool InetAddress::isMulticastAddress() { + TRACE_CLASS("InetAddress", "isMulticastAddress()"); + return IN_MULTICAST(ntohl(addr.sin_addr.s_addr)); // a modifier +} + + +/** + * Set the port number + * @param port The new port number + */ +void InetAddress::setPort(int port) +{ + TRACE_CLASS("InetAddress", "setPort(int)"); + addr.sin_port = htons(port); +} + + +/** + * Set the address + * @param name The new address name + * @return 0 if ok + * -1 if error + */ +int InetAddress::setAddress(const std::string& name) +{ + TRACE_CLASS("InetAddress", "setAddress(string)"); + if (!name.empty()) { + if (atoi(name.c_str())) { // If it start with a number + if ((addr.sin_addr.s_addr = inet_addr(name.c_str())) == INADDR_NONE) { + addr.sin_addr.s_addr = htons(INADDR_ANY); + inetErrNo = 0; + inetErrMsg = "Invalid address"; + inetErrDesc = name.c_str(); + return -1; + } + } + else { // Assume it's a real name + hostent *host = gethostbyname(name.c_str()); + if (host) { + addr.sin_addr = *(in_addr *)(host->h_addr); + } else { + addr.sin_addr.s_addr = htons(INADDR_ANY); + inetErrNo = 0; + inetErrMsg = "Could not find address"; + inetErrDesc = name.c_str(); + return -1; + } + } + } + else { + addr.sin_addr.s_addr = INADDR_ANY; + } + return 0; +} + + +void setInetError(const char* description) +{ + inetErrNo = 0; + inetErrNo = errno; + inetErrMsg = strerror(inetErrNo); + inetErrDesc = description; +} + |