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Bash-4.2 Official Patch 8


From: Chet Ramey
Subject: Bash-4.2 Official Patch 8
Date: Tue, 15 Mar 2011 08:58:33 -0400

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

Bash-Release:   4.2
Patch-ID:       bash42-008

Bug-Reported-by:        Doug McMahon <address@hidden>
Bug-Reference-ID:       <address@hidden>
Bug-Reference-URL:      
http://lists.gnu.org/archive/html/bug-bash/2011-03/msg00050.html

Bug-Description:

Bash-4.2 does not attempt to save the shell history on receipt of a
terminating signal that is handled synchronously.  Unfortunately, the
`close' button on most X11 terminal emulators sends SIGHUP, which
kills the shell.

This is a very small patch to save the history in the case that an
interactive shell receives a SIGHUP or SIGTERM while in readline and
reading a command.

The next version of bash will do this differently.

Patch (apply with `patch -p0'):

*** ../bash-4.2-patched/sig.c   Tue Nov 23 08:21:22 2010
--- sig.c       Tue Mar  8 21:28:32 2011
***************
*** 47,50 ****
--- 47,51 ----
  #if defined (READLINE)
  #  include "bashline.h"
+ #  include <readline/readline.h>
  #endif
  
***************
*** 63,66 ****
--- 64,68 ----
  extern int history_lines_this_session;
  #endif
+ extern int no_line_editing;
  
  extern void initialize_siglist ();
***************
*** 506,510 ****
  #if defined (HISTORY)
        /* XXX - will inhibit history file being written */
!       history_lines_this_session = 0;
  #endif
        terminate_immediately = 0;
--- 508,515 ----
  #if defined (HISTORY)
        /* XXX - will inhibit history file being written */
! #  if defined (READLINE)
!       if (interactive_shell == 0 || interactive == 0 || (sig != SIGHUP && sig 
!= SIGTERM) || no_line_editing || (RL_ISSTATE (RL_STATE_READCMD) == 0))
! #  endif
!         history_lines_this_session = 0;
  #endif
        terminate_immediately = 0;
*** ../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 7
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 8
  
  #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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