4.0p1 core dump and fix

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1 total messages Started by t e bennett Thu, 30 Apr 1992 18:54

#1516

Author: t e bennett
Date: Thu, 30 Apr 1992 18:54

39 lines
1500 bytes

xdispepoch.c can deref a null ptr and cause core dumps.

This is very similar to a previously fixed problem 
in xdispepoch.c.

Patch:


*** xdispepoch.c~	Mon Apr 27 10:08:02 1992
--- xdispepoch.c	Thu Apr 30 14:45:38 1992
***************
*** 1980,1990 ****
    {
      int i;
      struct line_header *l = XLINE(w->lines);
!     struct char_block *cb;
  
      i = ws->cursor_y;
      while (l && i--) l = l->next;
!     cb = l->body;
      i = ws->cursor_x;
      while (cb && i--) cb = cb->next;
  
--- 1980,1991 ----
    {
      int i;
      struct line_header *l = XLINE(w->lines);
!     struct char_block *cb = 0;
  
      i = ws->cursor_y;
      while (l && i--) l = l->next;
!     if (l)
!         cb = l->body;
      i = ws->cursor_x;
      while (cb && i--) cb = cb->next;
  
--
--tbennett     tony.bennett@East.Sun.COM   mailstop: RTP-NC

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