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Bash-4.3 Official Patch 20


From: Chet Ramey
Subject: Bash-4.3 Official Patch 20
Date: Fri, 1 Aug 2014 16:05:01 -0400

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

Bash-Release:   4.3
Patch-ID:       bash43-020

Bug-Reported-by:        Jared Yanovich <address@hidden>
Bug-Reference-ID:       <address@hidden>
Bug-Reference-URL:      
http://lists.gnu.org/archive/html/bug-bash/2014-04/msg00065.html

Bug-Description:

When PS2 contains a command substitution, here-documents entered in an
interactive shell can sometimes cause a segmentation fault.

Patch (apply with `patch -p0'):

*** ../bash-4.3-patched/shell.h 2012-12-25 21:11:01.000000000 -0500
--- shell.h     2014-06-03 09:24:28.000000000 -0400
***************
*** 169,173 ****
    int expand_aliases;
    int echo_input_at_read;
!   
  } sh_parser_state_t;
  
--- 169,174 ----
    int expand_aliases;
    int echo_input_at_read;
!   int need_here_doc;
! 
  } sh_parser_state_t;
  
*** ../bash-4.3-patched/parse.y 2014-05-14 09:16:40.000000000 -0400
--- parse.y     2014-04-30 09:27:59.000000000 -0400
***************
*** 2643,2647 ****
  
    r = 0;
!   while (need_here_doc)
      {
        parser_state |= PST_HEREDOC;
--- 2643,2647 ----
  
    r = 0;
!   while (need_here_doc > 0)
      {
        parser_state |= PST_HEREDOC;
***************
*** 6076,6079 ****
--- 6076,6080 ----
    ps->expand_aliases = expand_aliases;
    ps->echo_input_at_read = echo_input_at_read;
+   ps->need_here_doc = need_here_doc;
  
    ps->token = token;
***************
*** 6124,6127 ****
--- 6125,6129 ----
    expand_aliases = ps->expand_aliases;
    echo_input_at_read = ps->echo_input_at_read;
+   need_here_doc = ps->need_here_doc;
  
    FREE (token);
*** ../bash-4.3-patched/y.tab.c 2014-04-07 11:56:12.000000000 -0400
--- y.tab.c     2014-07-30 09:55:57.000000000 -0400
***************
*** 4955,4959 ****
  
    r = 0;
!   while (need_here_doc)
      {
        parser_state |= PST_HEREDOC;
--- 5151,5155 ----
  
    r = 0;
!   while (need_here_doc > 0)
      {
        parser_state |= PST_HEREDOC;
***************
*** 8388,8391 ****
--- 8584,8588 ----
    ps->expand_aliases = expand_aliases;
    ps->echo_input_at_read = echo_input_at_read;
+   ps->need_here_doc = need_here_doc;
  
    ps->token = token;
***************
*** 8436,8439 ****
--- 8633,8637 ----
    expand_aliases = ps->expand_aliases;
    echo_input_at_read = ps->echo_input_at_read;
+   need_here_doc = ps->need_here_doc;
  
    FREE (token);
*** ../bash-4.3/patchlevel.h    2012-12-29 10:47:57.000000000 -0500
--- patchlevel.h        2014-03-20 20:01:28.000000000 -0400
***************
*** 26,30 ****
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 19
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 20
  
  #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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