src/patches/readline/readline52-002

   1                            READLINE PATCH REPORT
   2                            =====================
   3
   4 Readline-Release: 5.2
   5 Patch-ID: readline52-002
   6
   7 Bug-Reported-by: Magnus Svensson <msvensson@mysql.com>
   8 Bug-Reference-ID: <45BDC44D.80609@mysql.com>
   9 Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-readline/2007-01/msg00002.html
  10
  11 Bug-Description:
  12
  13 Readline neglects to reallocate the array it uses to keep track of wrapped
  14 screen lines when increasing its size.  This will eventually result in
  15 segmentation faults when given sufficiently long input.
  16
  17 Patch:
  18
  19 *** ../readline-5.2-patched/display.c   Thu Sep 14 14:20:12 2006
  20 --- display.c   Fri Feb  2 20:23:17 2007
  21 ***************
  22 *** 561,574 ****
  23 --- 561,586 ----
  24         wrap_offset = prompt_invis_chars_first_line = 0;
  25       }
  26
  27 + #if defined (HANDLE_MULTIBYTE)
  28   #define CHECK_INV_LBREAKS() \
  29         do { \
  30         if (newlines >= (inv_lbsize - 2)) \
  31           { \
  32             inv_lbsize *= 2; \
  33             inv_lbreaks = (int *)xrealloc (inv_lbreaks, inv_lbsize * sizeof (int)); \
  34 +           _rl_wrapped_line = (int *)xrealloc (_rl_wrapped_line, inv_lbsize * sizeof (int)); \
  35           } \
  36         } while (0)
  37 + #else
  38 + #define CHECK_INV_LBREAKS() \
  39 +       do { \
  40 +       if (newlines >= (inv_lbsize - 2)) \
  41 +         { \
  42 +           inv_lbsize *= 2; \
  43 +           inv_lbreaks = (int *)xrealloc (inv_lbreaks, inv_lbsize * sizeof (int)); \
  44 +         } \
  45 +       } while (0)
  46 + #endif /* HANDLE_MULTIBYTE */
  47
  48   #if defined (HANDLE_MULTIBYTE)
  49   #define CHECK_LPOS() \