#include <u.h>#include <libc.h>#include <fcall.h>#include <9pclient.h>#include "fsimpl.h" intfsfopen(CFid *fid, int mode){	Fcall tx, rx; 	tx.type = Topen;	tx.fid = fid->fid;	tx.mode = mode;	if(_fsrpc(fid->fs, &tx, &rx, 0) < 0)		return -1;	fid->mode = mode;	return 0;} CFid*fsopen(CFsys *fs, char *name, int mode){	char e[ERRMAX];	CFid *fid; 	if((fid = fswalk(fs->root, name)) == nil)		return nil;	if(fsfopen(fid, mode) < 0){		rerrstr(e, sizeof e);		fsclose(fid);		errstr(e, sizeof e);		return nil;	}	fid->mode = mode;	return fid;}