From 7b22bec252a155514d811a8e2acc21562ac02bd4 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Mon, 5 Mar 2012 20:28:09 +0100
Subject: [PATCH] Don't leak a file descriptor in commonChildInit()

---
 src/libstore/build.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index 4c464d17c1..5bdd49bac0 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -367,6 +367,7 @@ void commonChildInit(Pipe & logPipe)
         throw SysError(format("cannot open `%1%'") % pathNullDevice);
     if (dup2(fdDevNull, STDIN_FILENO) == -1)
         throw SysError("cannot dup null device into stdin");
+    close(fdDevNull);
 }