* window.c: Integer overflow fixes.

(window_scroll_line_based, Frecenter):
Check that an Emacs fixnum is in range before assigning it to 'int'.
(Frecenter, Fmove_to_window_line): Use EMACS_INT, not int, for
values converted from Emacs fixnums.
(Frecenter): Don't wrap around a line count if it is out of 'int'
range; instead, treat it as an extreme value.
(Fset_window_configuration, compare_window_configurations):
Use ptrdiff_t, not int, for index that might exceed 2 GiB.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 101fa7ceab7..d2f956fe66f 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,15 @@
 2011-09-04  Paul Eggert  <eggert@cs.ucla.edu>
 
+        * window.c: Integer overflow fixes.
+        (window_scroll_line_based, Frecenter):
+        Check that an Emacs fixnum is in range before assigning it to 'int'.
+        (Frecenter, Fmove_to_window_line): Use EMACS_INT, not int, for
+        values converted from Emacs fixnums.
+        (Frecenter): Don't wrap around a line count if it is out of 'int'
+        range; instead, treat it as an extreme value.
+        (Fset_window_configuration, compare_window_configurations):
+        Use ptrdiff_t, not int, for index that might exceed 2 GiB.
+
         * search.c: Integer overflow fixes
         (Freplace_match): Use ptrdiff_t, not int, for indexes that can
         exceed INT_MAX.  Check that EMACS_INT value is in range before