// -*- c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t -*-// Copyright (c) 2001-2008 XORP, Inc.//// Permission is hereby granted, free of charge, to any person obtaining a// copy of this software and associated documentation files (the "Software")// to deal in the Software without restriction, subject to the conditions// listed in the XORP LICENSE file. These conditions include: you must// preserve this copyright notice, and you cannot mention the copyright// holders in advertising related to the Software without their permission.// The Software is provided WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED. This// notice is a summary of the XORP LICENSE file; the license in that file is// legally binding.#ident "$XORP: xorp/contrib/mld6igmp_lite/xorp_igmp.cc,v 1.2 2008/07/23 05:09:49 pavlin Exp $"//// XORP MLD/IGMP module implementation.//#include "mld6igmp_module.h"#include "libxorp/xorp.h"#include "libxorp/xlog.h"#include "libxorp/debug.h"#include "libxorp/callback.hh"#include "libxorp/eventloop.hh"#include "libxorp/exceptions.hh"#include "xrl_mld6igmp_node.hh"#ifdef HAVE_GETOPT_H#include <getopt.h>#endif//// Local functions prototypes//static	void usage(const char *argv0, int exit_value);/** * usage: * @argv0: Argument 0 when the program was called (the program name itself). * @exit_value: The exit value of the program. * * Print the program usage. * If @exit_value is 0, the usage will be printed to the standart output, * otherwise to the standart error. **/static voidusage(const char *argv0, int exit_value){    FILE *output;    const char *progname = strrchr(argv0, '/');    if (progname != NULL)	progname++;		// Skip the last '/'    if (progname == NULL)	progname = argv0;    //    // If the usage is printed because of error, output to stderr, otherwise    // output to stdout.    //    if (exit_value == 0)	output = stdout;    else	output = stderr;    fprintf(output, "Usage: %s [-F <finder_hostname>[:<finder_port>]]\n",	    progname);    fprintf(output, "           -F <finder_hostname>[:<finder_port>]  : finder hostname and port\n");    fprintf(output, "           -h                                    : usage (this message)\n");    fprintf(output, "\n");    fprintf(output, "Program name:   %s\n", progname);    fprintf(output, "Module name:    %s\n", XORP_MODULE_NAME);    fprintf(output, "Module version: %s\n", XORP_MODULE_VERSION);    exit (exit_value);    // NOTREACHED}static voidmld6igmp_main(const string& finder_hostname, uint16_t finder_port){    //    // Init stuff    //    EventLoop eventloop;    //    // MLD6IGMP node    //    XrlMld6igmpNode xrl_mld6igmp_node4(AF_INET,				       XORP_MODULE_MLD6IGMP,				       eventloop,				       xorp_module_name(AF_INET,							XORP_MODULE_MLD6IGMP),				       finder_hostname,				       finder_port,				       "finder",				       xorp_module_name(AF_INET,							XORP_MODULE_FEA),				       xorp_module_name(AF_INET,							XORP_MODULE_MFEA));    wait_until_xrl_router_is_ready(eventloop, xrl_mld6igmp_node4.xrl_router());    //    // Startup    //    xrl_mld6igmp_node4.enable_mld6igmp();    // xrl_mld6igmp_node4.startup();    xrl_mld6igmp_node4.enable_cli();    xrl_mld6igmp_node4.start_cli();    //    // Main loop    //    while (! xrl_mld6igmp_node4.is_done()) {	eventloop.run();    }    while (xrl_mld6igmp_node4.xrl_router().pending()) {	eventloop.run();    }}intmain(int argc, char *argv[]){    int ch;    string::size_type idx;    const char *argv0 = argv[0];    string finder_hostname = FinderConstants::FINDER_DEFAULT_HOST().str();    uint16_t finder_port = FinderConstants::FINDER_DEFAULT_PORT();    //    // Initialize and start xlog    //    xlog_init(argv[0], NULL);    xlog_set_verbose(XLOG_VERBOSE_LOW);		// Least verbose messages    // XXX: verbosity of the error messages temporary increased    xlog_level_set_verbose(XLOG_LEVEL_ERROR, XLOG_VERBOSE_HIGH);    xlog_add_default_output();    xlog_start();    //    // Get the program options    //    while ((ch = getopt(argc, argv, "F:h")) != -1) {	switch (ch) {	case 'F':	    // Finder hostname and port	    finder_hostname = optarg;	    idx = finder_hostname.find(':');	    if (idx != string::npos) {		if (idx + 1 >= finder_hostname.length()) {		    // No port number		    usage(argv0, 1);		    // NOTREACHED		}		char* p = &finder_hostname[idx + 1];		finder_port = static_cast<uint16_t>(atoi(p));		finder_hostname = finder_hostname.substr(0, idx);	    }	    break;	case 'h':	case '?':	    // Help	    usage(argv0, 0);	    // NOTREACHED	    break;	default:	    usage(argv0, 1);	    // NOTREACHED	    break;	}    }    argc -= optind;    argv += optind;    if (argc != 0) {	usage(argv0, 1);	// NOTREACHED    }    //    // Run everything    //    try {	mld6igmp_main(finder_hostname, finder_port);    } catch(...) {	xorp_catch_standard_exceptions();    }    //    // Gracefully stop and exit xlog    //    xlog_stop();    xlog_exit();    exit (0);}