Files
SDK_SG200x_V2/u-boot-2021.10/tools/gen_eth_addr.c
carbon 0545e9dc6d init version 2024-05-07
commit d1edce71135cc6d98c0a4b5729774542b676e769
Author: sophgo-forum-service <forum_service@sophgo.com>
Date:   Fri Mar 15 16:07:33 2024 +0800

    [fix] recommend using ssh method to clone repo.
    [fix] fix sensor driver repo branch name.
2024-05-07 19:36:36 +08:00

34 lines
744 B
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2001
* Murray Jensen <Murray.Jensen@cmst.csiro.au>
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <time.h>
int
main(int argc, char *argv[])
{
unsigned long ethaddr_low, ethaddr_high;
srand(time(0) + (getpid() << 8));
/*
* setting the 2nd LSB in the most significant byte of
* the address makes it a locally administered ethernet
* address
*/
ethaddr_high = (rand() & 0xfeff) | 0x0200;
ethaddr_low = rand();
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);
}