address.cc
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- /*
- * Copyright (c) 1990-1997 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the Computer Systems
- * Engineering Group at Lawrence Berkeley Laboratory.
- * 4. Neither the name of the University nor of the Laboratory may be used
- * to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $Header: /cvsroot/nsnam/nam-1/address.cc,v 1.2 1998/04/24 21:09:12 haoboy Exp $
- */
- #include <stdio.h>
- #include <stdlib.h>
- #include "tclcl.h"
- #include "address.h"
- #include "config.h"
- static class AddressClass : public TclClass {
- public:
- AddressClass() : TclClass("Address") {}
- TclObject* create(int, const char*const*) {
- return (new Address());
- }
- } class_address;
- Address* Address::instance_;
- Address::Address() : PortShift_(0), PortMask_(0), McastShift_(0), McastMask_(0), levels_(0)
- {
- for (int i = 0; i < 10; i++) {
- NodeShift_[i] = 0;
- NodeMask_[i] = 0;
- }
- // setting instance_ should be in constructor, instead of Address::
- if ((instance_ == 0) || (instance_ != this))
- instance_ = this;
- }
- Address::~Address() { }
- int Address::command(int argc, const char*const* argv)
- {
- int i, c, temp=0;
-
- Tcl& tcl = Tcl::instance();
- // if ((instance_ == 0) || (instance_ != this))
- // instance_ = this;
- if (argc == 4) {
- if (strcmp(argv[1], "portbits-are") == 0) {
- PortShift_ = atoi(argv[2]);
- PortMask_ = atoi(argv[3]);
- return (TCL_OK);
- }
- if (strcmp(argv[1], "mcastbits-are") == 0) {
- McastShift_ = atoi(argv[2]);
- McastMask_ = atoi(argv[3]);
- return (TCL_OK);
- }
- }
- if (argc >= 4) {
- if (strcmp(argv[1], "add-hier") == 0) {
- /*
- * <address> add-hier <level> <mask> <shift>
- */
- int level = atoi(argv[2]);
- int mask = atoi(argv[3]);
- int shift = atoi(argv[4]);
- if (levels_ < level)
- levels_ = level;
- NodeShift_[level] = shift;
- NodeMask_[level] = mask;
- return (TCL_OK);
- }
- if (strcmp(argv[1], "idsbits-are") == 0) {
- temp = (argc - 2)/2;
- if (levels_) {
- if (temp != levels_) {
- tcl.resultf("#idshiftbits don't match with #hier levelsn");
- return (TCL_ERROR);
- }
- }
- else
- levels_ = temp;
- // NodeShift_ = new int[levels_];
- for (i = 3, c = 1; c <= levels_; c++, i+=2)
- NodeShift_[c] = atoi(argv[i]);
- return (TCL_OK);
- }
-
- if (strcmp(argv[1], "idmbits-are") == 0) {
- temp = (argc - 2)/2;
- if (levels_) {
- if (temp != levels_) {
- tcl.resultf("#idmaskbits don't match with #hier levelsn");
- return (TCL_ERROR);
- }
- }
- else
- levels_ = temp;
- // NodeMask_ = new int[levels_];
- for (i = 3, c = 1; c <= levels_; c++, i+=2)
- NodeMask_[c] = atoi(argv[i]);
- return (TCL_OK);
- }
- }
- return TclObject::command(argc, argv);
- }
- char *Address::print_nodeaddr(int address)
- {
- int a;
- char temp[SMALL_LEN];
- char str[SMALL_LEN];
- char *addrstr;
-
- str[0] = ' ';
- for (int i=1; i <= levels_; i++) {
- a = address >> NodeShift_[i];
- if (levels_ > 1)
- a = a & NodeMask_[i];
- sprintf(temp, "%d.", a);
- strcat(str, temp);
- }
- addrstr = new char[strlen(str)];
- strcpy(addrstr, str);
- // printf("Nodeaddr - %sn",addrstr);
- return(addrstr);
- }
- char *Address::print_portaddr(int address)
- {
- int a;
- char str[SMALL_LEN];
- char *addrstr;
-
- str[0] = ' ';
- a = address >> PortShift_;
- a = a & PortMask_;
- sprintf(str, "%d", a);
- addrstr = new char[strlen(str)];
- strcpy(addrstr, str);
- // printf("Portaddr - %sn",addrstr);
- return(addrstr);
- }
- // Convert address in string format to binary format (int).
- int Address::str2addr(char *str)
- {
- if (levels_ == 0)
- return atoi(str);
- char *delim = ".";
- char *tok;
- int addr;
- for (int i = 1; i <= levels_; i++) {
- if (i == 1) {
- tok = strtok(str, delim);
- addr = atoi(tok);
- } else {
- tok = strtok(NULL, delim);
- addr = set_word_field(addr, atoi(tok),
- NodeShift_[i], NodeMask_[i]);
- }
- }
- return addr;
- }