resolved: add dns_answer_contains() helper

diff --git a/src/resolve/resolved-dns-answer.c b/src/resolve/resolved-dns-answer.c
index a2878ec2bb87127eb4d665468addedc2bb7748cd..52ba05644f03f83e439660c3413b8000f8e460a3 100644 (file)
--- 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 d73525cedd211b47b7975e5d2fe295b34bfbdbb6..88043081c2cdb6d00cf784de4f7f876743e15ed3 100644 (file)
--- 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);