print out positive numbers

diff --git a/src/protocols/dns/decode.c b/src/protocols/dns/decode.c
index 459d56ca624e7023ab5ed4c73b99e6d4991150a9..c94ba106c2a82e7fbc1686c28c0d6c35f8249433 100644 (file)
--- a/src/protocols/dns/decode.c
+++ b/src/protocols/dns/decode.c
@@ -352,7 +352,7 @@ static ssize_t decode_dns_labels(TALLOC_CTX *ctx, fr_pair_list_t *out,UNUSED fr_
                 */
                slen = fr_dns_label_uncompressed_length(packet_ctx->packet, data, data_len, &next, packet_ctx->lb);
                if (slen <= 0) {
-                       FR_PROTO_TRACE("length failed at %zd - %s", slen, fr_strerror());
+                       FR_PROTO_TRACE("length failed at %zd - %s", -slen, fr_strerror());
                        return slen;
                }