From f3dcf4a2e22328f9edfbc403986875307f4ca395 Mon Sep 17 00:00:00 2001
From: Tony Finch <dot@dot.at>
Date: Tue, 31 May 2005 17:07:39 +0000
Subject: [PATCH] ratelimit fix: omit the limit parameter from the database
 lookup key, so that minor configuration tweaks do not cause Exim to forget
 clients' stored rates. The smoothing period and options affect the meaning of
 the stored state, so are still included in the key.

---
 src/src/acl.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/src/acl.c b/src/src/acl.c
index 08c69c679..f2b1aaa13 100644
--- a/src/src/acl.c
+++ b/src/src/acl.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/acl.c,v 1.36 2005/05/31 10:58:18 ph10 Exp $ */
+/* $Cambridge: exim/src/src/acl.c,v 1.37 2005/05/31 17:07:39 fanf2 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -1920,7 +1920,7 @@ static int
 acl_ratelimit(uschar *arg, uschar **log_msgptr)
 {
 double limit, period;
-uschar *ss, *key = arg;
+uschar *ss, *key;
 int sep = '/';
 BOOL have_key = FALSE, leaky = FALSE, strict = FALSE;
 BOOL per_byte = FALSE, per_cmd = FALSE, per_conn = FALSE, per_mail = FALSE;
@@ -1956,6 +1956,12 @@ if (limit < 0.0 || *ss != 0)
   return ERROR;
   }
 
+/* We use the rest of the argument list following the limit as the
+lookup key, because it doesn't make sense to use the same stored data
+if the period or options are different. */
+
+key = arg;
+
 /* Second is the rate measurement period and exponential smoothing time
 constant. This must be strictly greater than zero, because zero leads to
 run-time division errors. */
@@ -1996,9 +2002,7 @@ if (leaky + strict > 1 || per_byte + per_cmd + per_conn + per_mail > 1)
 if (!strict) leaky = TRUE;
 if (!per_byte && !per_cmd && !per_conn) per_mail = TRUE;
 
-/* We use the whole of the argument list as the lookup key, because it doesn't
-make sense to use the same stored data if any of the arguments are different.
-If there is no explicit key, use the sender_host_address. If there is no
+/* If there is no explicit key, use the sender_host_address. If there is no
 sender_host_address (e.g. -bs or acl_not_smtp) then we simply omit it. */
 
 if (!have_key && sender_host_address != NULL)
-- 
2.30.2