From 25a5ea09653d87c01db10c045324cc414067bc87 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ian@anarres>
Date: Tue, 20 Feb 2007 19:54:00 +0000
Subject: [PATCH] allow tfd to override stderr/stdout

---
 doc/README.virtualisation-server | 3 +++
 virt-subproc/VirtSubproc.py      | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/doc/README.virtualisation-server b/doc/README.virtualisation-server
index 1bb7766..3c3835d 100644
--- a/doc/README.virtualisation-server
+++ b/doc/README.virtualisation-server
@@ -112,6 +112,9 @@ Protocol
 		If this feature is available, execute-debug will
 		be advertised.  Only one such plumbing is available.
 
+		<tfd> may be 1 or 2, in which case no output will
+		be written to the <stdout> or <stderr> files.
+
 * Commands
 	copydown <host-tree> <testbed-path>
 	copyup <testbed-tree> <host-path>
diff --git a/virt-subproc/VirtSubproc.py b/virt-subproc/VirtSubproc.py
index 2c5e4f6..71b7725 100644
--- a/virt-subproc/VirtSubproc.py
+++ b/virt-subproc/VirtSubproc.py
@@ -158,11 +158,13 @@ def cmd_execute(c, ce):
 		
 	gobody = "	import sys\n"
 	stdout = None
+	tfd = None
 	if debug_g:
 		(tfd,hfd) = m.groups()
 		gobody += "	os.dup2(1,%d)\n" % int(tfd)
 		stdout = int(hfd)
 	for ioe in range(3):
+		if ioe == tfd: continue
 		gobody += "	setfd(%d,'%s',%d)\n" % (
 			ioe, ce[ioe+2], ioe>0 )
 	gobody += "	os.chdir(urllib.unquote('" + ce[5] +"'))\n"
-- 
2.30.2