/*  * 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> char*sysname(void){	int f, n;	static char b[128]; 	if(b[0])		return b; 	f = open("#c/sysname", 0);	if(f >= 0) {		n = read(f, b, sizeof(b)-1);		if(n > 0)			b[n] = 0;		close(f);	}	return b;}