(getloadavg): Set FD_CLOEXEC flag on /dev/kmem file descriptor.

1 files changed, 11 insertions, 1 deletions

diff --git a/src/getloadavg.c b/src/getloadavg.c
index 8689a81eb50..5cf0b997bad 100644
--- a/src/getloadavg.c
+++ b/src/getloadavg.c
@@ -840,7 +840,17 @@ getloadavg (loadavg, nelem)
 #ifndef SUNOS_5
       channel = open ("/dev/kmem", 0);
       if (channel >= 0)
-        getloadavg_initialized = 1;
+        {
+          /* Set the channel to close on exec, so it does not
+             litter any child's descriptor table.  */
+#ifdef FD_SETFD
+#ifndef FD_CLOEXEC
+#define FD_CLOEXEC 1
+#endif
+          (void) fcntl (channel, F_SETFD, FD_CLOEXEC);
+#endif
+          getloadavg_initialized = 1;
+        }
 #else /* SUNOS_5 */
       /* We pass 0 for the kernel, corefile, and swapfile names
          to use the currently running kernel.  */