New waf/wscript and initial reorganization
diff --git a/waf-tools/ndnx.py b/waf-tools/ndnx.py
new file mode 100644
index 0000000..eec23c5
--- /dev/null
+++ b/waf-tools/ndnx.py
@@ -0,0 +1,160 @@
+#! /usr/bin/env python
+# encoding: utf-8
+
+'''
+
+When using this tool, the wscript will look like:
+
+	def options(opt):
+	        opt.tool_options('ndnx')
+
+	def configure(conf):
+		conf.load('compiler_c ndnx')
+
+	def build(bld):
+		bld(source='main.cpp', target='app', use='NDNX')
+
+Options are generated, in order to specify the location of ndnx includes/libraries.
+
+
+'''
+import sys, re
+from waflib import Utils, Logs, Errors, Options, ConfigSet
+from waflib.Configure import conf
+
+NDNX_DIR=['/usr','/usr/local','/opt/local','/sw']
+NDNX_VERSION_FILE='ccn/ccn.h'
+NDNX_VERSION_CODE='''
+#include <ccn/ccn.h>
+#include <stdio.h>
+int main() { printf ("%d.%d.%d", ((CCN_API_VERSION/100000) % 100), ((CCN_API_VERSION/1000) % 100), (CCN_API_VERSION % 1000)); return 0; }
+'''
+
+@conf
+def __ndnx_get_version_file(self,dir):
+	# Logs.pprint ('CYAN', '  + %s/%s/%s' % (dir, 'include', NDNX_VERSION_FILE))
+	try:
+		return self.root.find_dir(dir).find_node('%s/%s' % ('include', NDNX_VERSION_FILE))
+	except:
+		return None
+@conf
+def ndnx_get_version(self,dir):
+	val=self.check_cc(fragment=NDNX_VERSION_CODE,includes=['%s/%s' % (dir, 'include')],execute=True,define_ret = True, mandatory=True)
+	return val
+@conf
+def ndnx_get_root(self,*k,**kw):
+	root=Options.options.ndnx_dir or (k and k[0]) or kw.get('path',None)
+        
+	if root:
+                if self.__ndnx_get_version_file(root):
+                        return root
+		self.fatal('NDNx not found in %s'%root)
+                
+	for dir in NDNX_DIR:
+		if self.__ndnx_get_version_file(dir):
+			return dir
+        self.fatal('NDNx not found, please provide a --ndnx argument (see help)')
+
+@conf
+def check_openssl(self,*k,**kw):
+        root = k and k[0] or kw.get('path',None) or Options.options.openssl
+        mandatory = kw.get('mandatory', True)
+        var = kw.get('var', 'SSL')
+
+        CODE = """
+#include <openssl/crypto.h>
+#include <stdio.h>
+
+int main(int argc, char **argv) {
+	(void)argc;
+        printf ("%s", argv[0]);
+
+	return 0;
+}
+"""
+        if root:
+                testApp = self.check_cc (lib=['ssl', 'crypto'],
+                                         header_name='openssl/crypto.h',
+                                         define_name='HAVE_%s' % var,
+                                         uselib_store=var,
+                                         mandatory = mandatory,
+                                         cflags="-I%s/include" % root,
+                                         linkflags="-L%s/lib" % root,
+                                         execute = True, fragment = CODE, define_ret = True)
+        else:
+                testApp = libcrypto = self.check_cc (lib=['ssl', 'crypto'],
+                                                     header_name='openssl/crypto.h',
+                                                     define_name='HAVE_%s' % var,
+                                                     uselib_store=var,
+                                                     mandatory = mandatory,
+                                                     execute = True, fragment = CODE, define_ret = True)
+
+        if not testApp:
+                return
+
+        self.start_msg ('Checking if selected openssl matches NDNx')
+
+        ndn_var = kw.get('ndn_var', "NDNX")
+        if Utils.unversioned_sys_platform () == "darwin":
+                def otool (binary):
+                        p = Utils.subprocess.Popen (['/usr/bin/otool', '-L', binary], 
+                                                    stdout = Utils.subprocess.PIPE, )
+                        for line in p.communicate()[0].split ('\n'):
+                                if re.match ('.*/libcrypto\..*', line):
+                                        return line
+
+                selected_crypto = otool (testApp)
+                ccnd_crypto = otool ('%s/bin/ccnd' % self.env['%s_ROOT' % ndn_var])
+
+                if ccnd_crypto != selected_crypto:
+                        self.fatal ("Selected openssl does not match used to compile NDNx (%s != %s)" % 
+                                    (selected_crypto.strip (), ccnd_crypto.strip ()))
+                self.end_msg (True)
+
+        elif Utils.unversioned_sys_platform () == "linux" or  Utils.unversioned_sys_platform () == "freebsd":
+                def ldd (binary):
+                        p = Utils.subprocess.Popen (['/usr/bin/ldd', binary], 
+                                                        stdout = Utils.subprocess.PIPE, )
+                        for line in p.communicate()[0].split ('\n'):
+                                if re.match ('libcrypto\..*', line):
+                                        return line
+
+                selected_crypto = ldd (testApp)
+                ccnd_crypto = ldd ('%s/bin/ccnd' % self.env['%s_ROOT' % ndn_var])
+
+                if ccnd_crypto != selected_crypto:
+                        self.fatal ("Selected openssl does not match used to compile NDNx (%s != %s)" % 
+                                    (selected_crypto.strip (), ccnd_crypto.strip ()))
+                self.end_msg (True)
+        else:
+                self.end_msg ("Don't know how to check", 'YELLOW')
+
+@conf
+def check_ndnx(self,*k,**kw):
+	if not self.env['CC']:
+		self.fatal('load a c compiler first, conf.load("compiler_c")')
+
+	var=kw.get('uselib_store', 'NDNX')
+	self.start_msg('Checking for NDNx')
+	root = self.ndnx_get_root(*k,**kw);
+	self.env.NDNX_VERSION=self.ndnx_get_version(root)
+
+	self.env['INCLUDES_%s' % var]= '%s/%s' % (root, "include");
+	self.env['LIB_%s' % var] = "ccn"
+	self.env['LIBPATH_%s' % var] = '%s/%s' % (root, "lib")
+
+        self.env['%s_ROOT' % var] = root
+
+	self.end_msg("%s in %s " % (self.env.NDNX_VERSION, root))
+	if Logs.verbose:
+		Logs.pprint('CYAN','	NDNx include : %s'%self.env['INCLUDES_%s' % var])
+		Logs.pprint('CYAN','	NDNx lib     : %s'%self.env['LIB_%s' % var])
+		Logs.pprint('CYAN','	NDNx libpath : %s'%self.env['LIBPATH_%s' % var])
+
+def options(opt):
+        """
+        NDNx options
+        """
+        ndnopt = opt.add_option_group("NDNx Options")
+	ndnopt.add_option('--ndnx',type='string',default=None,dest='ndnx_dir',help='''path to where NDNx is installed, e.g. /usr/local''')
+        ndnopt.add_option('--openssl',type='string',default='',dest='openssl',help='''path to openssl, should be the same NDNx is compiled against''')