resolved: extend dns_packet_append_opt() so that it can set the extended rcode

We don't make use of this yet, but later work will.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/resolve/resolved-dns-packet.h b/src/resolve/resolved-dns-packet.h
index fe2b386297..1216bcb72d 100644
--- a/src/resolve/resolved-dns-packet.h
+++ b/src/resolve/resolved-dns-packet.h
@@ -182,7 +182,7 @@ int dns_packet_append_label(DnsPacket *p, const char *s, size_t l, bool canonica
 int dns_packet_append_name(DnsPacket *p, const char *name, bool allow_compression, bool canonical_candidate, size_t *start);
 int dns_packet_append_key(DnsPacket *p, const DnsResourceKey *key, size_t *start);
 int dns_packet_append_rr(DnsPacket *p, const DnsResourceRecord *rr, size_t *start, size_t *rdata_start);
-int dns_packet_append_opt(DnsPacket *p, uint16_t max_udp_size, bool edns0_do, size_t *start);
+int dns_packet_append_opt(DnsPacket *p, uint16_t max_udp_size, bool edns0_do, int rcode, size_t *start);
 int dns_packet_append_question(DnsPacket *p, DnsQuestion *q);
 int dns_packet_append_answer(DnsPacket *p, DnsAnswer *a);
 
@@ -234,7 +234,8 @@ enum {
         DNS_RCODE_BADNAME = 20,
         DNS_RCODE_BADALG = 21,
         DNS_RCODE_BADTRUNC = 22,
-        _DNS_RCODE_MAX_DEFINED
+        _DNS_RCODE_MAX_DEFINED,
+        _DNS_RCODE_MAX = 4095 /* 4 bit rcode in the header plus 8 bit rcode in OPT, makes 12 bit */
 };
 
 const char* dns_rcode_to_string(int i) _const_;