*************************************************/
/* Copyright (c) University of Cambridge 1995 - 2018 */
+/* Copyright (c) The Exim Maintainers 2020 */
/* See the file NOTICE for conditions of use and distribution. */
/* Functions for interfacing with the DNS. */
#ifdef rr_trace
# define TRACE DEBUG(D_dns)
#else
-trace = trace;
# define TRACE if (FALSE)
#endif
const uschar * trusted;
if (dnsa->answerlen < 0) return FALSE;
+/* Beware that newer versions of glibc on Linux will filter out the ad bit
+unless their shiny new RES_TRUSTAD bit is set for the resolver. */
if (h->ad) return TRUE;
/* If the resolver we ask is authoritative for the domain in question, it may
|| !(trusted = expand_string(dns_trust_aa))
|| !*trusted
|| !(auth_name = dns_extract_auth_name(dnsa))
- || OK != match_isinlist(auth_name, &trusted, 0, NULL, NULL,
+ || OK != match_isinlist(auth_name, &trusted, 0, &domainlist_anchor, NULL,
MCL_DOMAIN, TRUE, NULL)
)
return FALSE;
val = e->data.val;
rc = e->expiry && e->expiry <= time(NULL) ? -1 : val;
-DEBUG(D_dns) debug_printf("DNS lookup of %.255s-%s: %scached value %s%s\n",
+DEBUG(D_dns) debug_printf("DNS lookup of %.255s (%s): %scached value %s%s\n",
name, dns_text_type(type),
rc == -1 ? "" : "using ",
- val == DNS_NOMATCH ? "DNS_NOMATCH" :
- val == DNS_NODATA ? "DNS_NODATA" :
- val == DNS_AGAIN ? "DNS_AGAIN" :
- val == DNS_FAIL ? "DNS_FAIL" : "??",
+ dns_rc_names[val],
rc == -1 ? " past valid time" : "");
return rc;
#ifndef STAND_ALONE
save_domain = deliver_domain;
deliver_domain = string_copy(name); /* set $domain */
- rc = match_isinlist(name, (const uschar **)&dns_again_means_nonexist, 0, NULL, NULL,
- MCL_DOMAIN, TRUE, NULL);
+ rc = match_isinlist(name, CUSS &dns_again_means_nonexist, 0,
+ &domainlist_anchor, NULL, MCL_DOMAIN, TRUE, NULL);
deliver_domain = save_domain;
if (rc != OK)
{
/* Extract the numerical SRV fields (p is incremented) */
GETSHORT(priority, p);
- GETSHORT(weight, p); weight = weight; /* compiler quietening */
+ GETSHORT(weight, p);
GETSHORT(port, p);
/* Check the CSA version number */