/*  * 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> intaccess(char *name, int mode){	int fd;	Dir *db;	static char omode[] = {		0,		OEXEC,		OWRITE,		ORDWR,		OREAD,		OEXEC,	/* only approximate */		ORDWR,		ORDWR	/* only approximate */	}; 	if(mode == AEXIST){		db = dirstat(name);		free(db);		if(db != nil)			return 0;		return -1;	}	fd = open(name, omode[mode&7]);	if(fd >= 0){		close(fd);		return 0;	}	return -1;}