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/*
Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Her Majesty the
Queen in Right of Canada (Communications Research Center Canada)
*/
/*
This file is part of CRC-DabMux.
CRC-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.
CRC-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 CRC-DabMux. If not, see <http://www.gnu.org/licenses/>.
*/
#include "InetAddress.h"
#include <iostream>
#include <stdio.h>
#ifdef _WIN32
#else
# include <errno.h>
# include <string.h>
#endif
#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 = NULL;
const char *inetErrDesc = NULL;
/**
* 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 char *name)
{
TRACE_CLASS("InetAddress", "setAddress(char*)");
if (name) {
if (atoi(name)) { // If it start with a number
if ((addr.sin_addr.s_addr = inet_addr(name)) == INADDR_NONE) {
addr.sin_addr.s_addr = htons(INADDR_ANY);
inetErrNo = 0;
inetErrMsg = "Invalid address";
inetErrDesc = name;
return -1;
}
} else { // Assume it's a real name
hostent *host = gethostbyname(name);
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;
return -1;
}
}
} else {
addr.sin_addr.s_addr = INADDR_ANY;
}
return 0;
}
void setInetError(const char* description)
{
inetErrNo = 0;
#ifdef _WIN32
inetErrNo = WSAGetLastError();
switch (inetErrNo) {
case WSANOTINITIALISED:
inetErrMsg = "WSANOTINITIALISED A successful WSAStartup must occur before using this function.";
break;
case WSAENETDOWN:
inetErrMsg = "WSAENETDOWN The network subsystem has failed.";
break;
case WSAEFAULT:
inetErrMsg = "WSAEFAULT The buf or from parameters are not part of the user address space, or the fromlen parameter is too small to accommodate the peer address.";
break;
case WSAEINTR:
inetErrMsg = "WSAEINTR The (blocking) call was canceled through WSACancelBlockingCall.";
break;
case WSAEINPROGRESS:
inetErrMsg = "WSAEINPROGRESS A blocking Windows Sockets 1.1 call is in progress, or the service provider is still processing a callback function.";
break;
case WSAEINVAL:
inetErrMsg = "WSAEINVAL The socket has not been bound with bind, or an unknown flag was specified, or MSG_OOB was specified for a socket with SO_OOBINLINE enabled, or (for byte stream-style sockets only) len was zero or negative.";
break;
case WSAEISCONN:
inetErrMsg = "WSAEISCONN The socket is connected. This function is not permitted with a connected socket, whether the socket is connection-oriented or connectionless.";
break;
case WSAENETRESET:
inetErrMsg = "WSAENETRESET The connection has been broken due to the \"keep-alive\" activity detecting a failure while the operation was in progress.";
break;
case WSAENOTSOCK:
inetErrMsg = "WSAENOTSOCK The descriptor is not a socket.";
break;
case WSAEOPNOTSUPP:
inetErrMsg = "WSAEOPNOTSUPP MSG_OOB was specified, but the socket is not stream-style such as type SOCK_STREAM, out-of-band data is not supported in the communication domain associated with this socket, or the socket is unidirectional and supports only send operations.";
break;
case WSAESHUTDOWN:
inetErrMsg = "WSAESHUTDOWN The socket has been shut down; it is not possible to recvfrom on a socket after shutdown has been invoked with how set to SD_RECEIVE or SD_BOTH.";
break;
case WSAEWOULDBLOCK:
inetErrMsg = "WSAEWOULDBLOCK The socket is marked as nonblocking and the recvfrom operation would block.";
break;
case WSAEMSGSIZE:
inetErrMsg = "WSAEMSGSIZE The message was too large to fit into the specified buffer and was truncated.";
break;
case WSAETIMEDOUT:
inetErrMsg = "WSAETIMEDOUT The connection has been dropped, because of a network failure or because the system on the other end went down without notice.";
break;
case WSAECONNRESET:
inetErrMsg = "WSAECONNRESET";
break;
case WSAEACCES:
inetErrMsg = "WSAEACCES The requested address is a broadcast address, but the appropriate flag was not set. Call setsockopt with the SO_BROADCAST parameter to allow the use of the broadcast address.";
break;
case WSAENOBUFS:
inetErrMsg = "WSAENOBUFS No buffer space is available.";
break;
case WSAENOTCONN:
inetErrMsg = "WSAENOTCONN The socket is not connected (connection-oriented sockets only)";
break;
case WSAEHOSTUNREACH:
inetErrMsg = "WSAEHOSTUNREACH The remote host cannot be reached from this host at this time.";
break;
case WSAECONNABORTED:
inetErrMsg = "WSAECONNABORTED The virtual circuit was terminated due to a time-out or other failure. The application should close the socket as it is no longer usable.";
break;
case WSAEADDRNOTAVAIL:
inetErrMsg = "WSAEADDRNOTAVAIL The remote address is not a valid address, for example, ADDR_ANY.";
break;
case WSAEAFNOSUPPORT:
inetErrMsg = "WSAEAFNOSUPPORT Addresses in the specified family cannot be used with this socket.";
break;
case WSAEDESTADDRREQ:
inetErrMsg = "WSAEDESTADDRREQ A destination address is required.";
break;
case WSAENETUNREACH:
inetErrMsg = "WSAENETUNREACH The network cannot be reached from this host at this time.";
break;
case WSAEMFILE:
inetErrMsg = "No more socket descriptors are available.";
break;
case WSAEPROTONOSUPPORT:
inetErrMsg = "The specified protocol is not supported.";
break;
case WSAEPROTOTYPE:
inetErrMsg = "The specified protocol is the wrong type for this socket.";
break;
case WSAESOCKTNOSUPPORT:
inetErrMsg = "The specified socket type is not supported in this address family.";
break;
default:
inetErrMsg = "Unknown";
};
#else
inetErrNo = errno;
inetErrMsg = strerror(inetErrNo);
#endif
inetErrDesc = description;
}
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