# This file is part of Netsukuku
# (c) Copyright 2005 Andrea Lo Pumo aka AlpT <alpt@freaknet.org>
#
# This source code is free software; you can redistribute it and/or
# modify it under the terms of the GNU Public License as published 
# by the Free Software Foundation; either version 2 of the License,
# or (at your option) any later version.
#
# This source code 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.
# Please refer to the GNU Public License for more details.
#
# You should have received a copy of the GNU Public License along with
# this source code; if not, write to:
# Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

import sys
import os

Import("env")

NTK_VERSION="0.0.9b"

#
#	Sources and libs
#

sources_common    = ['xmalloc.c', 'log.c', 'misc.c', 'buffer.c', 'endianness.c']

sources_qspn      = ['qspn-empiric.c'] + sources_common
sources_netsukuku = ['accept.c', 'llist.c', 'ipv6-gmp.c', 'inet.c', 'request.c',
					 'map.c', 'gmap.c', 'bmap.c', 'pkts.c', 'radar.c', 'hook.c',
					 'rehook.c', 'tracer.c', 'qspn.c', 'hash.c', 'daemon.c',
					 'crypto.c', 'snsd_cache.c', 'andna_cache.c', 'andna.c',
					 'andns_lib.c', 'err_errno.c', 'dnslib.c', 'andns.c',
					 'andns_net.c', 'andns_snsd.c', 'll_map.c', 'libnetlink.c',
					 'if.c', 'krnl_route.c', 'krnl_rule.c', 'iptunnel.c',
					 'route.c', 'conf.c', 'dns_wrapper.c', 'igs.c', 'mark.c',
					 'libiptc/libip4tc.c', 'libping.c', 'ntk-console-server.c',
					 'netsukuku.c'] + sources_common
sources_ntkresolv = ['andns_lib.c', 'andns_net.c', 'crypto.c', 'snsd_cache.c',
					 'inet.c', 'll_map.c', 'libnetlink.c', 'err_errno.c',
					 'ntkresolv.c'] + sources_common

sources_ntkconsole = ['ntk-console.c']

libs = ['gmp', 'pthread', 'crypto', 'z']

if ("yes" in env['debug']) or ("1" in env['debug']):
	debug = 1
	env.Append(CPPDEFINES={'DEBUG' : '${debug}'}, CCFLAGS = ' -ggdb -Wall', CXXFLAGS = '-g')
#CCFLAGS = ' -ggdb -Wall -DDMALLOC_FUNC_CHECK'
#	libs+=['dmalloc', 'dmallocth']
	os.system("echo Cscoping and ctagging...; cscope -b; ctags *")
else:
	debug  = 0
if ("yes" in env['static']) or ("1" in env['static']):
	static = 1
	env.Append(CCFLAGS = ' -static', CXXFLAGS = '-static')
else:
	static = 0
if (env['destdir'] == "/"):
	env['destdir']=""

if os.path.exists("conf/netsukuku.conf") and env.GetOption('clean'):
	Execute(Delete('conf/netsukuku.conf'))
if os.path.exists("config.h") and env.GetOption('clean'):
	Execute(Delete('config.h'))
if os.path.exists("config.log") and env.GetOption('clean'):
	Execute(Delete('config.log'))
	
if ARGUMENTS.get('install'):
		print "you aren't root"

#
#	Configure
#

if not os.path.exists("config.log") and not env.GetOption('clean'):
	print 'Configuring... '
	conf = Configure(env)
	if not conf.CheckLib('gmp'): 
		print 'Did not find libgmp.a or gmp.lib, exiting!'
		Execute(Delete('config.log'))
		Exit(1)
	if not conf.CheckCHeader([ "gmp.h" ]):
		print 'Did not find the gmp headers, exiting!'
		Execute(Delete('config.log'))
		Exit(1)
	if not conf.CheckCHeader([ "zlib.h" ]):
		print 'Did not find the zlib headers, exiting!'
		Execute(Delete('config.log'))
		Exit(1)
	if not conf.CheckLib('pthread'):
       		print 'Did not find pthread.a or pthread.lib, exiting!'
		Execute(Delete('config.log'))
		Exit(1)
	if not conf.CheckLib('crypto'): 
		print 'Did not find the openssl libcrypto.a or libcrypto.lib, exiting!'
		Execute(Delete('config.log'))
		Exit(1)
	if not conf.CheckCHeader([ "openssl/bio.h", "openssl/evp.h",
			"openssl/crypto.h", "openssl/x509.h",
			"openssl/engine.h", "openssl/err.h", "openssl/rand.h",
			"openssl/rsa.h", "openssl/pem.h" ]):
		print 'Did not find the openssl headers, exiting!'
		Execute(Delete('config.log'))
		Exit(1)
	if not conf.CheckCHeader(["net/if.h", "netinet/in.h"]):
		print 'Did not find the net/if.h and netinet/in.h headers, exiting!'
		Execute(Delete('config.log'))
		Exit(1)
		
	env = conf.Finish()

def conf_build(target, source, env):
    conf_defines = {
		"CONF_DIR": env["CONF_DIR"],
		"DATA_DIR": env["DATA_DIR"],
		"PID_DIR": env["PID_DIR"],
		"VERSION": NTK_VERSION,
        "debug": debug # this is an int.  1 for true, 0 for false
    }

    conf = file(str(target), "w")
    conf_in = file(str(source), "r")
    conf.write(conf_in.read() % conf_defines)
    conf_in.close()
    conf.close()

def build_config_files(target = None, source = None, env = None):
	if not os.path.exists("config.h") and not env.GetOption('clean'):
		print 'Generating config.h from config_scons.h.in'
		conf_build('config.h', 'config_scons.h.in', env)
		conf = file("config.h", "a")
		if sys.platform == 'linux2' or sys.platform == 'linux-i386':
			conf.write("#define GNU_LINUX\n")
		elif sys.platform == 'darwin':
			conf.write("#define DARWIN\n")
		elif string.find (sys.platform, 'sunos') != -1:
			conf.write("#define SUNOS\n")
		elif sys.platform=='openbsd3':
			conf.write("#define OPEN_BSD\n")
		elif string.find (sys.platform, 'irix') != -1:
			conf.write("#define IRIX\n")
		conf.close()

	if not os.path.exists("conf/netsukuku.conf") and not env.GetOption('clean'):
		print 'Generating conf/netsukuku.conf from conf/ntk_scons.conf.in'
		conf_build('conf/netsukuku.conf', 'conf/ntk_scons.conf.in', env)
	
	return 0

build_config_files(env = env)

#
#	Build
#

ntkd 		= env.Program('ntkd', env.Object(sources_netsukuku), LIBS = libs, CPPPATH = '.')
qspn  		= env.Program('qspn-empiric', env.Object(sources_qspn), LIBS = libs, CPPPATH = '.')
ntkresolv 	= env.Program('ntk-resolv', env.Object(sources_ntkresolv), LIBS = libs, CPPPATH = '.')
ntkconsole 	= env.Program('ntk-console', env.Object(sources_ntkconsole), LIBS = libs, CPPPATH = '.', CFLAGS = '-std=c99')

Default(ntkd, ntkresolv, ntkconsole, qspn)


#
#	Install 
#

SConscript(['man/SConscript', 'scripts/SConscript', 'conf/SConscript'], 'env')

# Here are our installation paths:
idir_bin    = '$destdir' + '$BIN_DIR'
idir_data   = '$destdir' + '$DATA_DIR'
idir_conf   = '$destdir' + '$CONF_DIR'
idir_pid    = '$destdir' + '$PID_DIR'

env.Install(idir_bin, [ntkd])
env.Install(idir_bin, [ntkresolv])
env.Install(idir_bin, [ntkconsole])
env.Alias('install', [idir_bin, idir_conf])

#Dirty hack ;( Why GetOption("install") doesn't work?
#if not os.path.exists(env["DATA_DIR"]) and os.path.exists(env["CONF_DIR"]):
#	Execute(Mkdir(env["DATA_DIR"]))