1 files changed, 37 insertions, 0 deletions
diff --git a/src/resolve/fuzz-resource-record.c b/src/resolve/fuzz-resource-record.c
new file mode 100644
index 0000000..358a5c7
--- /dev/null
+++ b/src/resolve/fuzz-resource-record.c
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "fd-util.h"
+#include "fuzz.h"
+#include "memory-util.h"
+#include "memstream-util.h"
+#include "resolved-dns-packet.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+        _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *rr = NULL, *copy = NULL;
+        _cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
+        _cleanup_(memstream_done) MemStream m = {};
+        FILE *f;
+
+        if (outside_size_range(size, 0, DNS_PACKET_SIZE_MAX))
+                return 0;
+
+        if (dns_resource_record_new_from_raw(&rr, data, size) < 0)
+                return 0;
+
+        fuzz_setup_logging();
+
+        assert_se(copy = dns_resource_record_copy(rr));
+        assert_se(dns_resource_record_equal(copy, rr) > 0);
+
+        assert_se(f = memstream_init(&m));
+        (void) fprintf(f, "%s", strna(dns_resource_record_to_string(rr)));
+
+        if (dns_resource_record_to_json(rr, &v) < 0)
+                return 0;
+
+        (void) json_variant_dump(v, JSON_FORMAT_PRETTY|JSON_FORMAT_COLOR|JSON_FORMAT_SOURCE, f, NULL);
+        (void) dns_resource_record_to_wire_format(rr, false);
+        (void) dns_resource_record_to_wire_format(rr, true);
+
+        return 0;
+}