re PR libfortran/32784 ([win32] Using 'CONOUT$', 'CONIN$', or 'CONERR$' as…

re PR libfortran/32784 ([win32] Using 'CONOUT$', 'CONIN$', or 'CONERR$' as assigned file generates Fortran runtime error: Bad file descriptor)

2009-07-22  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libfortran/32784
	* unix.c (regular_file): Check for CONIN$ CONOUT$, and CONERR$ and open
	the respective /dev/conin or /dev/conout devices.  This is Cygwin
	specific.

From-SVN: r149970

libgfortran/ChangeLog

+2009-07-22  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+
+	PR libfortran/32784
+	* unix.c (regular_file): Check for CONIN$ CONOUT$, and CONERR$ and open
+	the respective /dev/conin or /dev/conout devices.  This is Cygwin
+	specific.
+
 2009-07-19  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	PR libfortran/34670

libgfortran/io/unix.c

@@ -897,6 +897,26 @@ regular_file (st_parameter_open *opp, unit_flags *flags)
       return -1;
     }
 
+#ifdef __CYGWIN__
+  if (opp->file_len == 7)
+    {
+      if (strncmp (path, "CONOUT$", 7) == 0
+	  || strncmp (path, "CONERR$", 7) == 0)
+	{
+	  fd = open ("/dev/conout", O_WRONLY);
+	  flags->action = ACTION_WRITE;
+	  return fd;
+	}
+    }
+
+  if (opp->file_len == 6 && strncmp (path, "CONIN$", 6) == 0)
+    {
+      fd = open ("/dev/conin", O_RDONLY);
+      flags->action = ACTION_READ;
+      return fd;
+    }
+#endif
+
   rwflag = 0;
 
   switch (flags->action)