Refactored some platform dependent code into a new library,

lib/arch.  This should make porting easier.  Will probably
continue to refactor a little more, moving platform dependent
event handling stuff into lib/platform.

lib/arch/vsnprintf.cpp

@@ -0,0 +1,36 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2002 Chris Schoeneman
+ * 
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ * 
+ * This package 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.
+ */
+
+#if HAVE_VSNPRINTF
+
+#if !defined(ARCH_VSNPRINTF)
+#	define ARCH_VSNPRINTF vsnprintf
+#endif
+
+int
+ARCH_STRING::vsnprintf(char* str, int size, const char* fmt, va_list ap)
+{
+	int n = ::ARCH_VSNPRINTF(str, size, fmt, ap);
+	if (n > size) {
+		n = -1;
+	}
+	return n;
+}
+
+#else // !HAVE_VSNPRINTF
+
+// FIXME
+#error vsnprintf not implemented
+
+#endif // !HAVE_VSNPRINTF