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authorMatthias (think) <matthias@mpb.li>2012-07-11 11:49:12 +0200
committerMatthias (think) <matthias@mpb.li>2012-07-11 11:49:12 +0200
commitbbab73a63b8c7b50e8a8cb228999d45024fad984 (patch)
tree81a822aa9bd33cae8a5fb8ade4faa83b652316d9 /src/InetAddress.cpp
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added unmodified mmbtools
Diffstat (limited to 'src/InetAddress.cpp')
-rw-r--r--src/InetAddress.cpp259
1 files changed, 259 insertions, 0 deletions
diff --git a/src/InetAddress.cpp b/src/InetAddress.cpp
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+++ b/src/InetAddress.cpp
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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;
+}