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upas/fs: fix walk

--- a/sys/src/cmd/upas/fs/fs.c

+++ b/sys/src/cmd/upas/fs/fs.c

@@ -791,8 +791,8 @@

 dowalk(Fid *f, char *name)

 {

 	char *rv, *p;

-	int t, t1;

 	Hash *h;

+	int t;

 	if(f->qid.type != QTDIR)

 		return Enotdir;

@@ -801,13 +801,12 @@

 	/* this must catch everything except . and .. */

 retry:

-	t1 = FILE(f->qid.path);

-	if((t1 == Qmbox || t1 == Qdir) && *name >= 'a' && *name <= 'z'){

+	if(t == Qdir && *name >= 'a' && *name <= 'z'){

 		h = hlook(f->qid.path, "xxx");		/* sleezy speedup */

-		t1 = dindex(name);

-		if(t1 == -1)

+		t = dindex(name);

+		if(t == -1)

 			h = nil;

-	}else

+	} else

 		h = hlook(f->qid.path, name);

 	if(h != nil){

 		if(h->mb)

@@ -821,8 +820,8 @@

 		f->m = h->m;

 		f->mb = h->mb;

 		f->qid = h->qid;

-		if(t1 < Qmax)

-			f->qid.path = PATH(f->m->id, t1);	/* sleezy speedup */

+		if(t < Qmax)

+			f->qid.path = PATH(f->m->id, t);	/* sleezy speedup */

 		rv = nil;

 	}else if((p = strchr(name, '.')) != nil && *name != '.'){

 		*p = 0;

@@ -1101,8 +1100,6 @@

 			n = readtopdir(f, mbuf, off, cnt, messagesize - IOHDRSZ);

 		else if(t == Qmbox)

 			n = readmboxdir(f, mbuf, off, cnt, messagesize - IOHDRSZ);

-		else if(t == Qmboxctl)

-			n = 0;

 		else

 			n = readmsgdir(f, mbuf, off, cnt, messagesize - IOHDRSZ);

 		rhdr.count = n;

-- 

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