usa	2010-10-01 15:13:32 +0900 (Fri, 01 Oct 2010)

  New Revision: 29382

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=29382

  Log:
    * win32/win32.c (init_stdhandle): redirect unopened IOs to NUL.
      backport r11362 from trunk. [ruby-core:31445]

  Modified files:
    branches/ruby_1_8/ChangeLog
    branches/ruby_1_8/win32/win32.c

Index: ruby_1_8/ChangeLog
===================================================================
--- ruby_1_8/ChangeLog	(revision 29381)
+++ ruby_1_8/ChangeLog	(revision 29382)
@@ -1,3 +1,8 @@
+Fri Oct  1 15:12:05 2010  NAKAMURA Usaku  <usa@r...>
+
+	* win32/win32.c (init_stdhandle): redirect unopened IOs to NUL.
+	  backport r11362 from trunk. [ruby-core:31445]
+
 Fri Oct  1 15:07:30 2010  NAKAMURA Usaku  <usa@r...>
 
 	* ext/-test-/threadswitch/threadswitch_hook.c (event_hook,
Index: ruby_1_8/win32/win32.c
===================================================================
--- ruby_1_8/win32/win32.c	(revision 29381)
+++ ruby_1_8/win32/win32.c	(revision 29382)
@@ -1909,15 +1909,33 @@
 static void
 init_stdhandle(void)
 {
+    int nullfd = -1;
+    int keep = 0;
+#define open_null(fd)						\
+    (((nullfd < 0) ?						\
+      (nullfd = open("NUL", O_RDWR|O_BINARY)) : 0),		\
+     ((nullfd == (fd)) ? (keep = 1) : dup2(nullfd, fd)),	\
+     (fd))
+
     if (fileno(stdin) < 0) {
-	stdin->_file = 0;
+	stdin->_file = open_null(0);
     }
+    else {
+	setmode(fileno(stdin), O_BINARY);
+    }
     if (fileno(stdout) < 0) {
-	stdout->_file = 1;
+	stdout->_file = open_null(1);
     }
+    else {
+	setmode(fileno(stdout), O_BINARY);
+    }
     if (fileno(stderr) < 0) {
-	stderr->_file = 2;
+	stderr->_file = open_null(2);
     }
+    else {
+	setmode(fileno(stderr), O_BINARY);
+    }
+    if (nullfd >= 0 && !keep) close(nullfd);
     setvbuf(stderr, NULL, _IONBF, 0);
 }
 #else

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