s4 dns: Move record lookup to dns_utils.c

[mat/samba.git] / source4 / dns_server / dns_utils.c

diff --git a/source4/dns_server/dns_utils.c b/source4/dns_server/dns_utils.c
index 5da32c0c532bdf6ef703698102cc3a02ee419326..c0e7ff758377a4d5108ed93c8f346ba08c0392a5 100644 (file)
--- a/source4/dns_server/dns_utils.c
+++ b/source4/dns_server/dns_utils.c
@@ -163,6 +163,52 @@ bool dns_records_match(struct dnsp_DnssrvRpcRecord *rec1,
        return false;
 }
 
+WERROR dns_lookup_records(struct dns_server *dns,
+                         TALLOC_CTX *mem_ctx,
+                         struct ldb_dn *dn,
+                         struct dnsp_DnssrvRpcRecord **records,
+                         uint16_t *rec_count)
+{
+       static const char * const attrs[] = { "dnsRecord", NULL};
+       struct ldb_message_element *el;
+       uint16_t ri;
+       int ret;
+       struct ldb_message *msg = NULL;
+       struct dnsp_DnssrvRpcRecord *recs;
+
+       ret = dsdb_search_one(dns->samdb, mem_ctx, &msg, dn,
+                             LDB_SCOPE_BASE, attrs, 0, "%s", "(objectClass=dnsNode)");
+       if (ret != LDB_SUCCESS) {
+               /* TODO: we need to check if there's a glue record we need to
+                * create a referral to */
+               return DNS_ERR(NAME_ERROR);
+       }
+
+       el = ldb_msg_find_element(msg, attrs[0]);
+       if (el == NULL) {
+               *records = NULL;
+               *rec_count = 0;
+               return WERR_OK;
+       }
+
+       recs = talloc_zero_array(mem_ctx, struct dnsp_DnssrvRpcRecord, el->num_values);
+       W_ERROR_HAVE_NO_MEMORY(recs);
+       for (ri = 0; ri < el->num_values; ri++) {
+               struct ldb_val *v = &el->values[ri];
+               enum ndr_err_code ndr_err;
+
+               ndr_err = ndr_pull_struct_blob(v, recs, &recs[ri],
+                               (ndr_pull_flags_fn_t)ndr_pull_dnsp_DnssrvRpcRecord);
+               if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+                       DEBUG(0, ("Failed to grab dnsp_DnssrvRpcRecord\n"));
+                       return DNS_ERR(SERVER_FAILURE);
+               }
+       }
+       *records = recs;
+       *rec_count = el->num_values;
+       return WERR_OK;
+}
+
 WERROR dns_name2dn(struct dns_server *dns,
                   TALLOC_CTX *mem_ctx,
                   const char *name,