[PATCH] save-cwd: don't leak a file descriptor when the caller execs.

[James Youngman]

Signed-off-by: James Youngman <j...@gnu.org>
---
 ChangeLog        |    7 +++++++
 lib/save-cwd.c   |    2 ++
 modules/save-cwd |    1 +
 3 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index dca5a12..f9bd220 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2010-03-28  James Youngman  <j...@gnu.org>
+
+       save-cwd: don't leak a file descriptor when the caller execs.
+       * lib/save-cwd.c (save_cwd): set the close-on-exec flag for the
+       saved file descriptor.
+       * modules/save-cwd (Depends-on): Depend on cloexec.
+
 2010-03-28  Bruno Haible  <br...@clisp.org>
             Ralf Wildenhues  <ralf.wildenh...@gmx.de>
 
diff --git a/lib/save-cwd.c b/lib/save-cwd.c
index 7394d50..cf43a35 100644
--- a/lib/save-cwd.c
+++ b/lib/save-cwd.c
@@ -31,6 +31,7 @@
 #include "chdir-long.h"
 #include "unistd--.h"
 #include "xgetcwd.h"
+#include "cloexec.h"
 
 #if GNULIB_FCNTL_SAFER
 # include "fcntl--.h"
@@ -84,6 +85,7 @@ save_cwd (struct saved_cwd *cwd)
       return cwd->name ? 0 : -1;
     }
 
+  set_cloexec_flag (cwd->desc, true);
   return 0;
 }
 
diff --git a/modules/save-cwd b/modules/save-cwd
index 46a1276..aab5e5e 100644
--- a/modules/save-cwd
+++ b/modules/save-cwd
@@ -8,6 +8,7 @@ m4/save-cwd.m4
 
 Depends-on:
 chdir-long
+cloexec
 stdbool
 unistd-safer
 xgetcwd
-- 
1.5.6.5