X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/7546de58d97a3a4d36dc27ab4e8764f77dc4f887..ab6dcfbe67abc6ed4a85be60510eb5fff58e170d:/src/util/ratelimit.pl

diff --git a/src/util/ratelimit.pl b/src/util/ratelimit.pl
index a30cfb60a..749125c4f 100644
--- a/src/util/ratelimit.pl
+++ b/src/util/ratelimit.pl
@@ -1,6 +1,4 @@
 #!/usr/bin/perl -wT
-#
-# $Cambridge: exim/src/util/ratelimit.pl,v 1.1 2005/09/13 17:51:06 fanf2 Exp $
 
 use strict;
 
@@ -14,8 +12,8 @@ ACL condition. This is so that you can get an idea of a reasonable
 limit setting before you deploy the restrictions.
 
 This script isn't perfectly accurate, because the time stamps in
-Exim's log files are only accurate to a seond whereas internally Exim
-computes sender rates to the accuracy of your computer's clock
+Exim's log files are only accurate to a second whereas internally
+Exim computes sender rates to the accuracy of your computer's clock
 (typically 10ms).
 
 The log files to be processed can be specified on the command line
@@ -118,9 +116,9 @@ while (<>) {
   }
   # see acl_ratelimit() for details of the following
   my $interval = $time - $time{$key};
+  $interval = 1e-9 if $interval <= 0.0;
   my $i_over_p = $interval / $period;
   my $a = exp(-$i_over_p);
-  $i_over_p = 1e-9 if $i_over_p <= 0.0;
   $time{$key} = $time;
   $rate{$key} = $size * (1.0 - $a) / $i_over_p + $a * $rate{$key};
   $max{$key} = $rate{$key} if $rate{$key} > $max{$key};