implement Fsmodule;include "sys.m";	sys: Sys;include "draw.m";include "sh.m";	sh: Sh;	Context: import sh;include "fslib.m";	fslib: Fslib;	Option, Value, Gatechan, Gatequery, Report, Nilentry: import fslib; types(): string{	return "pc-p-P";} badmod(p: string){	sys->fprint(sys->fildes(2), "fs: query: cannot load %s: %r\n", p);	raise "fail:bad module";} init(){	sys = load Sys Sys->PATH;	fslib = load Fslib Fslib->PATH;	if(fslib == nil)		badmod(Fslib->PATH);	sh = load Sh Sh->PATH;	if(sh == nil)		badmod(Sh->PATH);} run(drawctxt: ref Draw->Context, nil: ref Report,			opts: list of Option, args: list of ref Value): ref Value{	pflag := 0;	for(; opts != nil; opts = tl opts){		o := hd opts;		case o.opt {		'p' =>			pflag = 1;		'P' =>			pflag = 2;		}	} 	v := ref Value.P(chan of Gatequery);	spawn querygate(drawctxt, v.i, (hd args).c().i, pflag);	v.i <-= (Nilentry, nil);	return v;} querygate(drawctxt: ref Draw->Context, c: Gatechan, cmd: ref Sh->Cmd, pflag: int){	sys->pctl(Sys->NEWFD, 0::1::2::nil);	ctxt := Context.new(drawctxt);	<-c;	argv := ref Sh->Listnode(cmd, nil) :: nil;	while((((d, p, nil), reply) := <-c).t0.t0 != nil){		ctxt.set("file", ref Sh->Listnode(nil, p) :: nil);		if(pflag)			setstatenv(ctxt, d, pflag);		err := "";		{			err = ctxt.run(argv, 0);		} exception e {		"fail:*" =>			err = e;		}		reply <-= (err == nil);	}} # XXX shouldn't duplicate this... setenv(ctxt: ref Context, var: string, val: list of string){	ctxt.set(var, sh->stringlist2list(val));} setstatenv(ctxt: ref Context, dir: ref Sys->Dir, pflag: int){	setenv(ctxt, "mode", modes(dir.mode) :: nil);	setenv(ctxt, "uid", dir.uid :: nil);	setenv(ctxt, "mtime", string dir.mtime :: nil);	setenv(ctxt, "length", string dir.length :: nil); 	if(pflag > 1){		setenv(ctxt, "name", dir.name :: nil);		setenv(ctxt, "gid", dir.gid :: nil);		setenv(ctxt, "muid", dir.muid :: nil);		setenv(ctxt, "qid", sys->sprint("16r%ubx", dir.qid.path) :: string dir.qid.vers :: nil);		setenv(ctxt, "atime", string dir.atime :: nil);		setenv(ctxt, "dtype", sys->sprint("%c", dir.dtype) :: nil);		setenv(ctxt, "dev", string dir.dev :: nil);	}} start(startc: chan of (string, chan of string), name: string): chan of string{	c := chan of string;	startc <-= (name, c);	return c;} mtab := array[] of {	"---",	"--x",	"-w-",	"-wx",	"r--",	"r-x",	"rw-",	"rwx"}; modes(mode: int): string{	s: string; 	if(mode & Sys->DMDIR)		s = "d";	else if(mode & Sys->DMAPPEND)		s = "a";	else if(mode & Sys->DMAUTH)		s = "A";	else		s = "-";	if(mode & Sys->DMEXCL)		s += "l";	else		s += "-";	s += mtab[(mode>>6)&7]+mtab[(mode>>3)&7]+mtab[mode&7];	return s;}