/* * (C) Copyright 2001 * Murray Jensen <Murray.Jensen@cmst.csiro.au> * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program 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. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <time.h> int main(int argc, char *argv[]) { unsigned long ethaddr_low, ethaddr_high; srandom(time(0) | getpid()); /* * setting the 2nd LSB in the most significant byte of * the address makes it a locally administered ethernet * address */ ethaddr_high = (random() & 0xfeff) | 0x0200; ethaddr_low = random(); printf("%02lx:%02lx:%02lx:%02lx:%02lx:%02lx\n", ethaddr_high >> 8, ethaddr_high & 0xff, ethaddr_low >> 24, (ethaddr_low >> 16) & 0xff, (ethaddr_low >> 8) & 0xff, ethaddr_low & 0xff); return (0); }