[patch #3840] fix for off by one error in src/grep.c:prpending()

[Julian Foad]

Follow-up Comment #2, patch #3840 (project grep):

This patch fixed the following seg-faults as reported by Pavol Gono when using
--max-count and --after-context:

> $ cat bla1
> 4
> 40
> $ cat bla2
> 4
> 04
> $ cat bla3
> 4
> 444
> $ egrep -m1 -A99 "^4$" bla1
> 4
> Segmentation fault
> $ egrep -m1 -A99 "^4$" bla2
> 4
> Segmentation fault
> $ egrep -m1 -A99 "^4$" bla3
> 4
> Segmentation fault
> $ egrep -m1 -A99 "^4" bla1
> 4
> $ egrep -m1 -A99 "^4" bla2
> 4
> Segmentation fault
> $ egrep -m1 -A99 "^4" bla3
> 4
> $ egrep -m1 -A99 "4$" bla1
> 4
> Segmentation fault
> $ egrep -m1 -A99 "4$" bla2
> 4
> $ egrep -m1 -A99 "4$" bla3
> 4

There are now regression tests for this in tests/foad1.sh.


    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/patch/?func=detailitem&item_id=3840>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/