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Bash-4.2 Official Patch 41


From: Chet Ramey
Subject: Bash-4.2 Official Patch 41
Date: Wed, 2 Jan 2013 16:35:24 -0500

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

Bash-Release:   4.2
Patch-ID:       bash42-041

Bug-Reported-by:        Andrey Borzenkov <address@hidden>
Bug-Reference-ID:       <address@hidden>
Bug-Reference-URL:      
http://lists.gnu.org/archive/html/bug-bash/2012-12/msg00008.html

Bug-Description:

Process substitution incorrectly inherited a flag that inhibited using the
(local) temporary environment for variable lookups if it was providing
the filename to a redirection.  The intent the flag is to enforce the
Posix command expansion ordering rules.

Patch (apply with `patch -p0'):

*** ../bash-4.2-patched/subst.c 2012-07-14 15:53:20.000000000 -0400
--- subst.c     2012-12-02 22:26:54.000000000 -0500
***************
*** 5125,5128 ****
--- 5129,5136 ----
  #endif /* HAVE_DEV_FD */
  
+   /* subshells shouldn't have this flag, which controls using the temporary
+      environment for variable lookups. */
+   expanding_redir = 0;
+ 
    result = parse_and_execute (string, "process substitution", 
(SEVAL_NONINT|SEVAL_NOHIST));
  
*** ../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 40
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 41
  
  #endif /* _PATCHLEVEL_H_ */

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



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