Thu Jun 4 08:56:05 2009 Johnny Willemsen <jwillemsen@remedy.nl>

        * ace/OS_NS_unistd.inl (isatty):
          Check the return value of _open_osfhandle, if it returns -1,
          it failed and then calling _isatty with -1 will cause an
          assert of the msvc9 runtime

1 files changed, 6 insertions, 2 deletions

diff --git a/ACE/ace/OS_NS_unistd.inl b/ACE/ace/OS_NS_unistd.inl
index 9765a0ece92..414cb40688b 100644
--- a/ACE/ace/OS_NS_unistd.inl
+++ b/ACE/ace/OS_NS_unistd.inl
@@ -623,8 +623,12 @@ ACE_OS::isatty (ACE_HANDLE handle)
   return 0;
 #else
   int const fd = ::_open_osfhandle (intptr_t (handle), 0);
-  int const status = ::_isatty (fd);
-  ::_close (fd);
+  int status = 0;
+  if (fd != -1)
+    {
+      status = ::_isatty (fd);
+      ::_close (fd);
+    }
   return status;
 #endif /* ACE_LACKS_ISATTY */
 }