commit 6d309264f67e1e7c6370d89288440e45ec14e244
from: Kirill A. Korinsky <kirill@korins.ky>
date: Mon Jun  2 19:57:36 2025 UTC

Do not treat ar_h_errno == NO_DATA as error

OpenBSD's asr returns ar_h_errno == NO_DATA when it had a fallback from
UDP to TCP, so I should tolerate it as well.

commit - ede84c7b5bbaa959daa89ecf641dffe190a7a076
commit + 6d309264f67e1e7c6370d89288440e45ec14e244
blob - 0b1f6d3096d21297377841d5a823b5c1b2c83f2d
blob + 9824cc4dddf10271ef4b2739d74d3a0c1cf946d1
--- main.c
+++ main.c
@@ -1127,7 +1127,7 @@ dkim_rr_resolve(struct asr_result *ar, void *arg)
 		    hstrerror(ar->ar_h_errno));
 		goto verify;
 	}
-	if (ar->ar_h_errno != NETDB_SUCCESS) {
+	if (ar->ar_h_errno == HOST_NOT_FOUND) {
 		dkim_signature_state(sig, DKIM_PERMERROR,
 		    hstrerror(ar->ar_h_errno));
 		goto verify;