* include/ruby/win32.h, win32/win32.c (rb_w32_is_valid_fd): new function

	  to validate fd.

	* io.c (rb_io_initialize): check fd with above function.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@21734 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 0 deletions

diff --git a/win32/win32.c b/win32/win32.c
index b948fe0d77..ba8a96e82c 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -1836,6 +1836,15 @@ rb_w32_open_osfhandle(intptr_t osfhandle, int flags)
 }
 #endif
 
+int
+rb_w32_is_valid_fd(int fd)
+{
+    if (_get_osfhandle(fd) == -1)
+	return -1;
+    else
+	return 0;
+}
+
 #undef getsockopt
 
 static int