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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-09-16 18:18:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-09-16 18:18:14 +0000
commit67c5de60daa85b91fa68be4157e248fa31e75316 (patch)
tree7d567f3360f705ac21600343ef7f7cea645a9222 /src/resolve/resolved-dns-packet.c
parentAdding upstream version 256.1. (diff)
downloadsystemd-upstream/256.2.tar.xz
systemd-upstream/256.2.zip
Adding upstream version 256.2.upstream/256.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/resolve/resolved-dns-packet.c')
-rw-r--r--src/resolve/resolved-dns-packet.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/resolve/resolved-dns-packet.c b/src/resolve/resolved-dns-packet.c
index e626740..e446461 100644
--- a/src/resolve/resolved-dns-packet.c
+++ b/src/resolve/resolved-dns-packet.c
@@ -1804,9 +1804,9 @@ int dns_packet_read_rr(
if (r < 0)
return r;
- /* RFC 2181, Section 8, suggests to
- * treat a TTL with the MSB set as a zero TTL. */
- if (rr->ttl & UINT32_C(0x80000000))
+ /* RFC 2181, Section 8, suggests to treat a TTL with the MSB set as a zero TTL. We avoid doing this
+ * for OPT records so that all 8 bits of the extended RCODE may be used .*/
+ if (key->type != DNS_TYPE_OPT && rr->ttl & UINT32_C(0x80000000))
rr->ttl = 0;
r = dns_packet_read_uint16(p, &rdlength, NULL);