Added sharedNetwork library

engine/shared/library/sharedNetwork/src/linux/NetworkGetHostName.cpp

@@ -0,0 +1,141 @@
+// NetworkGetHostName.cpp
+// Copyright 2000-02, Sony Online Entertainment Inc., all rights reserved. 
+// Author: Justin Randall
+
+//-----------------------------------------------------------------------
+
+#include "FirstSharedNetwork.h"
+#include "Address.h"
+#include "sharedNetwork/NetworkHandler.h"
+#include <net/if.h>
+#include <unistd.h>
+#include <string>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+//-----------------------------------------------------------------------
+
+struct HN
+{
+	HN();
+	std::string hostName;
+};
+
+//-----------------------------------------------------------------------
+
+HN::HN()
+{
+	char name[512] = {"\0"};
+	if(gethostname(name, sizeof(name)) == 0)
+	{
+		Address a(name, 0);
+		//hostName = name;
+		hostName = a.getHostAddress();
+	}
+}
+
+//-----------------------------------------------------------------------
+
+const std::string & NetworkHandler::getHostName()
+{
+	static HN hn;
+	return hn.hostName;
+}
+
+//-----------------------------------------------------------------------
+
+const std::string & NetworkHandler::getHumanReadableHostName()
+{
+	char name[512] = {"\0"};
+	static std::string nameString;
+	if(nameString.empty())
+	{
+		if(gethostname(name, sizeof(name)) == 0)
+		{
+			name[sizeof(name) - 1] = 0;
+			//hostName = name;
+			nameString = name;
+		}
+	}
+	return nameString;
+}
+
+//-----------------------------------------------------------------------
+
+struct HL
+{
+	HL();
+	std::vector<std::pair<std::string, std::string> >  addrList;
+};
+
+//-----------------------------------------------------------------------
+
+HL::HL() :
+addrList()
+{
+	struct ifconf ifc;
+	int sock = socket(AF_INET, SOCK_DGRAM, 0);
+
+	// create a socket to perform SIOCGIFCONF on
+	if(sock > -1)
+	{
+		// determine buffer size to receive array of if_req's, initialize it
+		// when length is appropriate
+		int reqSize = 100 * sizeof(struct ifreq);
+		int lastReqSize = reqSize;
+		for(;;)
+		{
+			char * buf = new char[reqSize];
+			ifc.ifc_len = reqSize;
+			ifc.ifc_buf = buf;
+			memset(ifc.ifc_buf, 0, reqSize);
+			if (ioctl(sock, SIOCGIFCONF, &ifc) < 0)
+			{
+				if (errno != EINVAL || lastReqSize != 0)
+				{
+					WARNING(true, ("Error getting interface list: %s", strerror(errno)));
+					delete buf;
+					return;
+				}
+			}
+			else
+			{
+				if(ifc.ifc_len == lastReqSize)
+					break; // we have the reqs
+				lastReqSize = ifc.ifc_len;
+			}
+
+			// need more buffer space for request
+			reqSize += sizeof(struct ifreq);
+			delete [] buf;
+		}
+
+		int reqCount = reqSize / sizeof(struct ifreq);
+		int i;
+		ifreq * reqs = (struct ifreq *)ifc.ifc_buf;
+		for(i = 0; i < reqCount; ++i)
+		{
+			struct sockaddr_in * sa = (struct sockaddr_in *)&reqs[i].ifr_addr;
+			if(sa->sin_family == AF_INET)
+			{
+				char addrbuf[17] = {"\0"};
+				unsigned char * a = (unsigned char *)&sa->sin_addr;
+				snprintf(addrbuf, sizeof(addrbuf), "%u.%u.%u.%u", a[0], a[1], a[2], a[3]);
+				addrList.push_back(std::make_pair(std::string(reqs[i].ifr_name), std::string(addrbuf)));
+			}
+		}
+		
+	}
+}
+
+//-----------------------------------------------------------------------
+
+const std::vector<std::pair<std::string, std::string> > & NetworkHandler::getInterfaceAddresses()
+{
+	static HL hl;
+	return hl.addrList;
+}
+
+//-----------------------------------------------------------------------