From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 5 Jun 2025 10:43:36 +0000 (+0200)
Subject: resolvectl: improve error message if we do not support dumping payload of RR
X-Git-Tag: v257.7~40
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=9df7a197c28553f48ebde9df2f225cb93cebdf32;p=thirdparty%2Fsystemd.git

resolvectl: improve error message if we do not support dumping payload of RR

(cherry picked from commit 231a0417cdb10a60e566900d5525cf7ee0dd9027)
---

diff --git a/src/resolve/resolvectl.c b/src/resolve/resolvectl.c
index cf08297f79b..8b60d76139f 100644
--- a/src/resolve/resolvectl.c
+++ b/src/resolve/resolvectl.c
@@ -486,6 +486,8 @@ static int output_rr_packet(const void *d, size_t l, int ifindex) {
                 ssize_t k;
 
                 k = dns_resource_record_payload(rr, &data);
+                if (k == -EINVAL)
+                        return log_error_errno(k, "Dumping of binary payload not available for RRs of this type: %s", dns_type_to_string(rr->key->type));
                 if (k < 0)
                         return log_error_errno(k, "Cannot dump RR: %m");
                 fwrite(data, 1, k, stdout);