From: Roland McGrath <roland@gnu.org>
Date: Tue, 1 Aug 1995 18:29:36 +0000 (+0000)
Subject: (getloadavg): Set FD_CLOEXEC flag on /dev/kmem file descriptor.
X-Git-Tag: emacs-19.34~3122
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=00f7bd7264f701b65656043ffa064fcb46a175dd;p=emacs.git

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

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.  */