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From 1f1873aadd092a0fab505dd278a484d887ba0ec3 Mon Sep 17 00:00:00 2001
From: Simon Kelley <simon@thekelleys.org.uk>
Date: Fri, 11 May 2018 23:38:23 +0100
Subject: [PATCH 10/17] Log warning on very large cachesize config, instead of
truncating it.
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
---
src/dnsmasq.c | 6 +++++-
src/option.c | 2 --
2 files changed, 5 insertions(+), 3 deletions(-)
--- a/src/dnsmasq.c
+++ b/src/dnsmasq.c
@@ -740,7 +740,11 @@ int main (int argc, char **argv)
else
{
if (daemon->cachesize != 0)
- my_syslog(LOG_INFO, _("started, version %s cachesize %d"), VERSION, daemon->cachesize);
+ {
+ my_syslog(LOG_INFO, _("started, version %s cachesize %d"), VERSION, daemon->cachesize);
+ if (daemon->cachesize > 10000)
+ my_syslog(LOG_WARNING, _("cache size greater than 10000 may cause performance issues, and is unlikely to be useful."));
+ }
else
my_syslog(LOG_INFO, _("started, version %s cache disabled"), VERSION);
--- a/src/option.c
+++ b/src/option.c
@@ -2603,8 +2603,6 @@ static int one_opt(int option, char *arg
if (size < 0)
size = 0;
- else if (size > 10000)
- size = 10000;
daemon->cachesize = size;
}
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