akr	2011-10-30 08:30:34 +0900 (Sun, 30 Oct 2011)

  New Revision: 33563

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=33563

  Log:
    * io.c (rb_cloexec_dup2): don't set CLOEXEC for standard file
      descriptors.

  Modified files:
    trunk/ChangeLog
    trunk/io.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 33562)
+++ ChangeLog	(revision 33563)
@@ -1,3 +1,8 @@
+Sun Oct 30 08:29:51 2011  Tanaka Akira  <akr@f...>
+
+	* io.c (rb_cloexec_dup2): don't set CLOEXEC for standard file
+	  descriptors.
+
 Sun Oct 30 07:47:10 2011  Tanaka Akira  <akr@f...>
 
 	* configure.in: check dup3.
Index: io.c
===================================================================
--- io.c	(revision 33562)
+++ io.c	(revision 33563)
@@ -234,7 +234,7 @@
 
 #if defined(HAVE_DUP3) && defined(O_CLOEXEC)
     static int try_dup3 = 1;
-    if (try_dup3) {
+    if (2 < newfd && try_dup3) {
         ret = dup3(oldfd, newfd, O_CLOEXEC);
         /* dup3 is available since Linux 2.6.27. */
         if (ret == -1 && errno == ENOSYS) {

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