[Bug-readline] Readline-7.0 Official patch 1

[Chet Ramey]

                           READLINE PATCH REPORT
                           =====================

Readline-Release: 7.0
Patch-ID: readline70-001

Bug-Reported-by:        Sean Zha <address@hidden>
Bug-Reference-ID:       <address@hidden>
Bug-Reference-URL:      
http://lists.gnu.org/archive/html/bug-bash/2016-09/msg00107.html

Bug-Description:

Readline-7.0 changed the way the history list is initially allocated to reduce
the number of reallocations and copies.  Users who set the readline
history-size variable to a very large number to essentially unlimit the size
of the history list will get memory allocation errors 

Patch (apply with `patch -p0'):

*** ../readline-7.0/history.c   2015-12-28 13:50:31.000000000 -0500
--- history.c   2016-09-30 14:28:40.000000000 -0400
***************
*** 58,61 ****
--- 58,63 ----
  #define DEFAULT_HISTORY_INITIAL_SIZE  502
  
+ #define MAX_HISTORY_INITIAL_SIZE      8192
+ 
  /* The number of slots to increase the_history by. */
  #define DEFAULT_HISTORY_GROW_SIZE 50
***************
*** 308,312 ****
        {
          if (history_stifled && history_max_entries > 0)
!           history_size = history_max_entries + 2;
          else
            history_size = DEFAULT_HISTORY_INITIAL_SIZE;
--- 310,316 ----
        {
          if (history_stifled && history_max_entries > 0)
!           history_size = (history_max_entries > MAX_HISTORY_INITIAL_SIZE)
!                               ? MAX_HISTORY_INITIAL_SIZE
!                               : history_max_entries + 2;
          else
            history_size = DEFAULT_HISTORY_INITIAL_SIZE;

*** ../readline-7.0/patchlevel  2013-11-15 08:11:11.000000000 -0500
--- patchlevel  2014-03-21 08:28:40.000000000 -0400
***************
*** 1,3 ****
  # Do not edit -- exists only for use by patch
  
! 0
--- 1,3 ----
  # Do not edit -- exists only for use by patch
  
! 1

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