Index: src/cmd/9pserve.c
===================================================================
--- src/cmd/9pserve.c	(revision 707)
+++ src/cmd/9pserve.c	(working copy)
@@ -136,7 +136,7 @@
 void
 usage(void)
 {
-	fprint(2, "usage: 9pserve [-lnv] [-A aname afid] [-M msize] address\n");
+	fprint(2, "usage: 9pserve [-c pipe] [-lnv] [-A aname afid] [-M msize] address\n");
 	fprint(2, "\treads/writes 9P messages on stdin/stdout\n");
 	threadexitsall("usage");
 }
@@ -157,6 +157,19 @@
 	ARGBEGIN{
 	default:
 		usage();
+	case 'c':
+	{
+		char* pipename = EARGF(usage());
+		printf("pipename=\"%s\"\n", pipename);
+
+                if((fd = dial(pipename, nil, nil, nil)) < 0)
+            	    sysfatal("dial %s: %r");
+		dup(fd, 0);
+		dup(fd, 1);
+		if(fd > 1)
+		    close(fd);
+	}
+	break;
 	case 'A':
 		attached = 1;
 		xaname = EARGF(usage());