// -*- c-basic-offset: 4; related-file-name: "../../include/click/standard/portinfo.hh" -*-/* * portinfo.{cc,hh} -- element stores TCP/UDP port information * Eddie Kohler * * Copyright (c) 2004 The Regents of the University of California * * 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 Click 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 Click LICENSE file; the license in that file is * legally binding. */#include <click/config.h>#include <click/standard/portinfo.hh>#include <click/nameinfo.hh>#include <click/glue.hh>#include <click/confparse.hh>#include <click/router.hh>#include <click/error.hh>CLICK_DECLSPortInfo::PortInfo(){}PortInfo::~PortInfo(){}intPortInfo::configure(Vector<String> &conf, ErrorHandler *errh){    int before = errh->nerrors();      for (int i = 0; i < conf.size(); i++) {	String str = conf[i];	String name_str = cp_pop_spacevec(str);	if (!name_str		// allow empty arguments	    || name_str[0] == '#') // allow comments	    continue;	String port_str = cp_pop_spacevec(str);	uint32_t port;	int32_t proto = IP_PROTO_TCP_OR_UDP;	const char *slash = cp_unsigned(port_str.begin(), port_str.end(), 0, &port);	if (slash != port_str.end() && *slash == '/') {	    if (slash + 4 == port_str.end() && memcmp(slash, "/tcp", 4) == 0)		proto = IP_PROTO_TCP;	    else if (slash + 4 == port_str.end() && memcmp(slash, "/udp", 4) == 0)		proto = IP_PROTO_UDP;	    else if (NameInfo::query_int(NameInfo::T_IP_PROTO, this, port_str.substring(slash + 1, port_str.end()), &proto))		/* got proto */;	    else		continue;	} else if (slash == port_str.begin() || slash != port_str.end()) {	    errh->error("expected 'NAME PORT/PROTO', got '%s'", conf[i].c_str());	    continue;	}	do {	    if (proto == IP_PROTO_TCP_OR_UDP) {		NameInfo::define(NameInfo::T_TCP_PORT, this, name_str, &port, 4);		NameInfo::define(NameInfo::T_UDP_PORT, this, name_str, &port, 4);	    } else		NameInfo::define(NameInfo::T_IP_PORT + proto, this, name_str, &port, 4);	    name_str = cp_pop_spacevec(str);	} while (name_str && name_str[0] != '#');    }        return (errh->nerrors() == before ? 0 : -1);}EXPORT_ELEMENT(PortInfo)ELEMENT_HEADER(<click/standard/portinfo.hh>)// template instance#include <click/vector.cc>CLICK_ENDDECLS