(main): Close daemon_pipe on exec.

src/ChangeLog

+2008-12-08  Dan Nicolaescu  <dann@ics.uci.edu>
+
+	* emacs.c (main): Close daemon_pipe on exec.
+
 2008-12-08  Chong Yidong  <cyd@stupidchicken.com>
 	* termchar.h (struct tty): New members termcap_term_buffer and

src/emacs.c

@@ -1143,6 +1143,10 @@ main (int argc, char **argv)
        	daemon_name = xstrdup (dname_arg);
       /* Close unused reading end of the pipe.  */
       close (daemon_pipe[0]);
+      /* Make sure that the used end of the pipe is closed on exec, so
+	 that it is not accessible to programs started from .emacs.  */
+      fcntl (daemon_pipe[1], F_SETFD, FD_CLOEXEC);
+
 #ifdef HAVE_SETSID
       setsid();
 #endif