checkpoint. merging win32 code. server on X is currently broken

and client probably is.

net/XNetwork.cpp

@@ -0,0 +1,72 @@
+#include "XNetwork.h"
+
+//
+// XNetworkUnavailable
+//
+
+CString					XNetworkUnavailable::getWhat() const throw()
+{
+	return format("XNetworkUnavailable", "network library is not available");
+}
+
+
+//
+// XNetworkFailed
+//
+
+CString					XNetworkFailed::getWhat() const throw()
+{
+	return format("XNetworkFailed", "cannot initialize network library");
+}
+
+
+//
+// XNetworkVersion
+//
+
+XNetworkVersion::XNetworkVersion(int major, int minor) throw() :
+								m_major(major),
+								m_minor(minor)
+{
+	// do nothing
+}
+
+int						XNetworkVersion::getMajor() const throw()
+{
+	return m_major;
+}
+
+int						XNetworkVersion::getMinor() const throw()
+{
+	return m_minor;
+}
+
+CString					XNetworkVersion::getWhat() const throw()
+{
+	return format("XNetworkVersion",
+								"unsupported network version %d.%d",
+								m_major, m_minor);
+}
+
+
+//
+// XNetworkFunctionUnavailable
+//
+
+XNetworkFunctionUnavailable::XNetworkFunctionUnavailable(
+								const char* name) throw()
+{
+	try {
+		m_name = name;
+	}
+	catch (...) {
+		// ignore
+	}
+}
+
+CString					XNetworkFunctionUnavailable::getWhat() const throw()
+{
+	return format("XNetworkFunctionUnavailable",
+								"missing network function %s",
+								m_name.c_str());
+}