#include	"u.h"#include <errno.h>#include	"lib.h"#include	"dat.h"#include	"fns.h"#include	"error.h" #undef pread#undef pwrite Chan*lfdchan(int fd){	Chan *c;		c = newchan();	c->type = devno('L', 0);	c->aux = (void*)(uintptr)fd;	c->path = newpath("fd");	c->mode = ORDWR;	c->qid.type = 0;	c->qid.path = 0;	c->qid.vers = 0;	c->dev = 0;	c->offset = 0;	return c;} intlfdfd(int fd){	return newfd(lfdchan(fd));} static Chan*lfdattach(char *x){	USED(x);		error(Egreg);	return nil;} static Walkqid*lfdwalk(Chan *c, Chan *nc, char **name, int nname){	USED(c);	USED(nc);	USED(name);	USED(nname);		error(Egreg);	return nil;} static intlfdstat(Chan *c, uchar *dp, int n){	USED(c);	USED(dp);	USED(n);	error(Egreg);	return -1;} static Chan*lfdopen(Chan *c, int omode){	USED(c);	USED(omode);		error(Egreg);	return nil;} static voidlfdclose(Chan *c){	close((int)(uintptr)c->aux);} static longlfdread(Chan *c, void *buf, long n, vlong off){	USED(off);	/* can't pread on pipes */	n = read((int)(uintptr)c->aux, buf, n);	if(n < 0){		iprint("error %d\n", errno);		oserror();	}	return n;} static longlfdwrite(Chan *c, void *buf, long n, vlong off){	USED(off);	/* can't pread on pipes */ 	n = write((int)(uintptr)c->aux, buf, n);	if(n < 0){		iprint("error %d\n", errno);		oserror();	}	return n;} Dev lfddevtab = {	'L',	"lfd",		devreset,	devinit,	devshutdown,	lfdattach,	lfdwalk,	lfdstat,	lfdopen,	devcreate,	lfdclose,	lfdread,	devbread,	lfdwrite,	devbwrite,	devremove,	devwstat,};