/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include <u.h>#include <libc.h>#include <ip.h> intmyetheraddr(uchar *to, char *dev){	int n, fd;	char buf[256]; 	if(*dev == '/')		sprint(buf, "%s/addr", dev);	else		sprint(buf, "/net/%s/addr", dev); 	fd = open(buf, OREAD);	if(fd < 0)		return -1; 	n = read(fd, buf, sizeof buf -1 );	close(fd);	if(n <= 0)		return -1;	buf[n] = 0; 	parseether(to, buf);	return 0;}