From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 28 Oct 2020 19:50:44 +0000 (+0100)
Subject: resolved: add dns_answer_contains() helper
X-Git-Tag: v248-rc1~158^2~9
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7d44b1986bc51a026ff96e1f8c038a4b39786328;p=thirdparty%2Fsystemd.git

resolved: add dns_answer_contains() helper
---

diff --git a/src/resolve/resolved-dns-answer.c b/src/resolve/resolved-dns-answer.c
index a2878ec2bb8..52ba05644f0 100644
--- a/src/resolve/resolved-dns-answer.c
+++ b/src/resolve/resolved-dns-answer.c
@@ -284,6 +284,16 @@ int dns_answer_contains_zone_nsec3(DnsAnswer *answer, const char *zone) {
         return false;
 }
 
+int dns_answer_contains(DnsAnswer *answer, DnsResourceRecord *rr) {
+        DnsResourceRecord *i;
+
+        DNS_ANSWER_FOREACH(i, answer)
+                if (dns_resource_record_equal(i, rr))
+                        return true;
+
+        return false;
+}
+
 int dns_answer_find_soa(DnsAnswer *a, const DnsResourceKey *key, DnsResourceRecord **ret, DnsAnswerFlags *flags) {
         DnsResourceRecord *rr, *soa = NULL;
         DnsAnswerFlags rr_flags, soa_flags = 0;
diff --git a/src/resolve/resolved-dns-answer.h b/src/resolve/resolved-dns-answer.h
index d73525cedd2..88043081c2c 100644
--- a/src/resolve/resolved-dns-answer.h
+++ b/src/resolve/resolved-dns-answer.h
@@ -47,6 +47,7 @@ int dns_answer_add_soa(DnsAnswer *a, const char *name, uint32_t ttl, int ifindex
 int dns_answer_match_key(DnsAnswer *a, const DnsResourceKey *key, DnsAnswerFlags *combined_flags);
 int dns_answer_contains_nsec_or_nsec3(DnsAnswer *a);
 int dns_answer_contains_zone_nsec3(DnsAnswer *answer, const char *zone);
+int dns_answer_contains(DnsAnswer *answer, DnsResourceRecord *rr);
 
 int dns_answer_find_soa(DnsAnswer *a, const DnsResourceKey *key, DnsResourceRecord **ret, DnsAnswerFlags *flags);
 int dns_answer_find_cname_or_dname(DnsAnswer *a, const DnsResourceKey *key, DnsResourceRecord **ret, DnsAnswerFlags *flags);