Bash-4.2 Official Patch 45

[Chet Ramey]

                             BASH PATCH REPORT
                             =================

Bash-Release:   4.2
Patch-ID:       bash42-045

Bug-Reported-by:        Stephane Chazelas <stephane.chazelas@gmail.com>
Bug-Reference-ID:       <20130218195539.GA9620@chaz.gmail.com>
Bug-Reference-URL:      
http://lists.gnu.org/archive/html/bug-bash/2013-02/msg00080.html

Bug-Description:

The <&n- and >&n- redirections, which move one file descriptor to another,
leave the file descriptor closed when applied to builtins or compound
commands.

Patch (apply with `patch -p0'):

*** ../bash-4.2-patched/redir.c 2013-01-30 11:56:09.000000000 -0500
--- redir.c     2013-02-19 09:38:36.000000000 -0500
***************
*** 1008,1011 ****
--- 1008,1021 ----
              REDIRECTION_ERROR (r, errno, -1);
            }
+         if ((flags & RX_UNDOABLE) && (ri == r_move_input || ri == 
r_move_output))
+           {
+             /* r_move_input and r_move_output add an additional close()
+                that needs to be undone */
+             if (fcntl (redirector, F_GETFD, 0) != -1)
+               {
+                 r = add_undo_redirect (redir_fd, r_close_this, -1);
+                 REDIRECTION_ERROR (r, errno, -1);
+               }
+           }
  #if defined (BUFFERED_INPUT)
          check_bash_input (redirector);

*** ../bash-4.2-patched/patchlevel.h    Sat Jun 12 20:14:48 2010
--- patchlevel.h        Thu Feb 24 21:41:34 2011
***************
*** 26,30 ****
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 44
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 45
  
  #endif /* _PATCHLEVEL_H_ */

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/