diff a50ea54acc46b5ee57b463ef3e881515cc962c00 uncommitted
--- a/./README.md
+++ b/./README.md
@@ -1,6 +1,6 @@
 vdir
 =====
-A minimalistic visual directory browser for Plan9.
+A minimalistic visual directory browser for Plan 9.
 
 ![vdir](vdir.png)
 
@@ -31,13 +31,25 @@
 
 Path plumbing:
 --------------
-When right-clicking the path in the toolbar, the path name is sent to plumber.
-This can be used to open a window in the directory for instance:
+When right-clicking the path in the toolbar, or pressing Space, the
+path name is sent to plumber.  This can be used to open a window in
+the directory for instance:
+
 ```
 src is vdir
 type is text
 arg isdir $data
 plumb start window -cd $data rc
+```
+
+In addition, a plumb rule can be installed so that plumbing a
+directory will change the current path of a running vdir:
+
+```
+type is text
+arg isdir $data
+plumb to vdir
+plumb client window vdir
 ```
 
 Disclaimer:
--- a/./vdir.c
+++ b/./vdir.c
@@ -25,6 +25,7 @@
 	Emouse,
 	Eresize,
 	Ekeyboard,
+	Eplumb,
 };
 
 enum
@@ -162,7 +163,7 @@
 void
 cd(char *dir)
 {
-	char newpath[256] = {0};
+	char newpath[4096] = {0};
 
 	if(dir == nil)
 		snprint(newpath, sizeof path, home);
@@ -711,6 +712,29 @@
 }
 
 void
+plumbdir(void *c)
+{
+	Plumbmsg *m;
+	char *s;
+	int f;
+
+	if((f = plumbopen("vdir", OREAD)) >= 0){
+		while((m = plumbrecv(f)) != nil){
+			s = m->data;
+			if(*s != '/' && m->wdir != nil)
+				s = smprint("%s/%.*s", m->wdir, m->ndata, m->data);
+			else
+				s = smprint("%.*s", m->ndata, m->data);
+			plumbfree(m);
+			if(sendp(c, s) != 1)
+				break;
+		}
+	}
+
+	threadexits(nil);
+}
+
+void
 usage(void)
 {
 	fprint(2, "usage: %s [-r] [path]\n", argv0);
@@ -722,10 +746,12 @@
 {
 	Mouse m;
 	Rune k;
+	char *d;
 	Alt alts[] = {
 		{ nil, &m,  CHANRCV },
 		{ nil, nil, CHANRCV },	
 		{ nil, &k,  CHANRCV },
+		{ nil, &d,  CHANRCV },
 		{ nil, nil, CHANEND },
 	};
 
@@ -760,6 +786,8 @@
 	alts[Emouse].c = mctl->c;
 	alts[Eresize].c = mctl->resizec;
 	alts[Ekeyboard].c = kctl->c;
+	alts[Eplumb].c = chancreate(sizeof(d), 1);
+	proccreate(plumbdir, alts[Eplumb].c, 4096);
 	readhome();
 	loaddirs();
 	initcolors();
@@ -775,6 +803,11 @@
 			break;
 		case Ekeyboard:
 			evtkey(k);
+			break;
+		case Eplumb:
+			cd(d);
+			free(d);
+			redraw();
 			break;
 		}
 	}