dnsmasq/backport-Fix-bad-interaction-between-address-ip-and-ser.patch

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From f4b281381853df6b275332d4cd0ec1d150bffa86 Mon Sep 17 00:00:00 2001
From: Simon Kelley <simon@thekelleys.org.uk>
Date: Mon, 8 Aug 2022 15:27:32 +0100
Subject: [PATCH] Fix bad interaction between --address=/#/<ip> and
--server=/some.domain/#
This would return <ip> for queries in some.domain, rather than
forwarding the query via the default server(s) read from /etc/resolv.conf.
Conflict:NA
Reference:https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=f4b281381853df6b275332d4cd0ec1d150bffa86
---
src/domain-match.c | 14 +++++++++-----
1 files changed, 9 insertions(+), 5 deletions(-)
diff --git a/src/domain-match.c b/src/domain-match.c
index 3ec49b8..f7db0fe 100644
--- a/src/domain-match.c
+++ b/src/domain-match.c
@@ -213,9 +213,13 @@ int lookup_domain(char *domain, int flags, int *lowout, int *highout)
to continue generalising */
{
/* We've matched a setting which says to use servers without a domain.
- Continue the search with empty query */
+ Continue the search with empty query. We set the F_SERVER flag
+ so that --address=/#/... doesn't match. */
if (daemon->serverarray[nlow]->flags & SERV_USE_RESOLV)
- crop_query = qlen;
+ {
+ crop_query = qlen;
+ flags |= F_SERVER;
+ }
else
break;
}
@@ -299,7 +303,7 @@ int filter_servers(int seed, int flags, int *lowout, int *highout)
for (i = nlow; i < nhigh && (daemon->serverarray[i]->flags & SERV_6ADDR); i++);
- if (i != nlow && (flags & F_IPV6))
+ if (!(flags & F_SERVER) && i != nlow && (flags & F_IPV6))
nhigh = i;
else
{
@@ -307,7 +311,7 @@ int filter_servers(int seed, int flags, int *lowout, int *highout)
for (i = nlow; i < nhigh && (daemon->serverarray[i]->flags & SERV_4ADDR); i++);
- if (i != nlow && (flags & F_IPV4))
+ if (!(flags & F_SERVER) && i != nlow && (flags & F_IPV4))
nhigh = i;
else
{
@@ -315,7 +319,7 @@ int filter_servers(int seed, int flags, int *lowout, int *highout)
for (i = nlow; i < nhigh && (daemon->serverarray[i]->flags & SERV_ALL_ZEROS); i++);
- if (i != nlow && (flags & (F_IPV4 | F_IPV6)))
+ if (!(flags & F_SERVER) && i != nlow && (flags & (F_IPV4 | F_IPV6)))
nhigh = i;
else
{
--
2.23.0