From 9c18f300a40496fba95cfea2fe06d02f71bb968a Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@gmx.de>
Date: Thu, 6 Sep 2012 01:05:37 +0200
Subject: [PATCH] devshr: honor noattach

---
 sys/src/9/port/devshr.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sys/src/9/port/devshr.c b/sys/src/9/port/devshr.c
index 70c477d53..35e73629b 100644
--- a/sys/src/9/port/devshr.c
+++ b/sys/src/9/port/devshr.c
@@ -458,6 +458,8 @@ shrcreate(Chan *c, char *name, int omode, ulong perm)
 		cclose(c);
 		return nc;	
 	case Qcroot:
+		if(up->pgrp->noattach)
+			error(Enoattach);
 		if((perm & DMDIR) == 0 || openmode(omode) != OREAD)
 			error(Eperm);
 		if(strlen(name) >= sizeof(up->genbuf))
@@ -490,6 +492,8 @@ shrcreate(Chan *c, char *name, int omode, ulong perm)
 		sch->shr = shr;
 		break;
 	case Qcshr:
+		if(up->pgrp->noattach)
+			error(Enoattach);
 		if((perm & DMDIR) || openmode(omode) != OWRITE)
 			error(Eperm);
 
@@ -720,6 +724,8 @@ shrwrite(Chan *c, void *va, long n, vlong)
 		int	flags;
 	}bogus;
 
+	if(up->pgrp->noattach)
+		error(Enoattach);
 	sch = tosch(c);
 	if(sch->level != Qcmpt)
 		error(Egreg);