1
2
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5
6
7#include <stdio.h>
8#include <stdlib.h>
9#include <unistd.h>
10#include <time.h>
11
12int
13main(int argc, char *argv[])
14{
15 unsigned long ethaddr_low, ethaddr_high;
16
17 srand(time(0) + (getpid() << 8));
18
19
20
21
22
23
24 ethaddr_high = (rand() & 0xfeff) | 0x0200;
25 ethaddr_low = rand();
26
27 printf("%02lx:%02lx:%02lx:%02lx:%02lx:%02lx\n",
28 ethaddr_high >> 8, ethaddr_high & 0xff,
29 ethaddr_low >> 24, (ethaddr_low >> 16) & 0xff,
30 (ethaddr_low >> 8) & 0xff, ethaddr_low & 0xff);
31
32 return (0);
33}
34