isc_result_t
dns_db_load3(dns_db_t *db, const char *filename, dns_masterformat_t format,
unsigned int options) {
isc_result_t result, eresult;
dns_rdatacallbacks_t callbacks;
/*
* Load master file 'filename' into 'db'.
*/
REQUIRE(DNS_DB_VALID(db));
if ((db->attributes & DNS_DBATTR_CACHE) != 0)
options |= DNS_MASTER_AGETTL;
dns_rdatacallbacks_init(&callbacks);
result = dns_db_beginload(db, &callbacks.add, &callbacks.add_private);
if (result != ISC_R_SUCCESS)
return (result);
result = dns_master_loadfile2(filename, &db->origin, &db->origin,
db->rdclass, options,
&callbacks, db->mctx, format);
eresult = dns_db_endload(db, &callbacks.add_private);
/*
* We always call dns_db_endload(), but we only want to return its
* result if dns_master_loadfile() succeeded. If dns_master_loadfile()
* failed, we want to return the result code it gave us.
*/
if (eresult != ISC_R_SUCCESS &&
(result == ISC_R_SUCCESS || result == DNS_R_SEENINCLUDE))
result = eresult;
return (result);
}
static void
db_load_from_stream(dns_db_t *db, FILE *fp) {
isc_result_t result;
dns_rdatacallbacks_t callbacks;
dns_rdatacallbacks_init(&callbacks);
result = dns_db_beginload(db, &callbacks);
if (result != ISC_R_SUCCESS)
fatal("dns_db_beginload failed: %s", isc_result_totext(result));
result = dns_master_loadstream(fp, name, name, rdclass, 0,
&callbacks, mctx);
if (result != ISC_R_SUCCESS)
fatal("can't load from input: %s", isc_result_totext(result));
result = dns_db_endload(db, &callbacks);
if (result != ISC_R_SUCCESS)
fatal("dns_db_endload failed: %s", isc_result_totext(result));
}
isc_result_t
dns_rootns_create(isc_mem_t *mctx, dns_rdataclass_t rdclass,
const char *filename, dns_db_t **target)
{
isc_result_t result, eresult;
isc_buffer_t source;
unsigned int len;
dns_rdatacallbacks_t callbacks;
dns_db_t *db = NULL;
REQUIRE(target != NULL && *target == NULL);
result = dns_db_create(mctx, "rbt", dns_rootname, dns_dbtype_zone,
rdclass, 0, NULL, &db);
if (result != ISC_R_SUCCESS)
goto failure;
len = strlen(root_ns);
isc_buffer_init(&source, root_ns, len);
isc_buffer_add(&source, len);
dns_rdatacallbacks_init(&callbacks);
result = dns_db_beginload(db, &callbacks);
if (result != ISC_R_SUCCESS)
goto failure;
if (filename != NULL) {
/*
* Load the hints from the specified filename.
*/
result = dns_master_loadfile(filename, &db->origin,
&db->origin, db->rdclass,
DNS_MASTER_HINT,
&callbacks, db->mctx);
} else if (rdclass == dns_rdataclass_in) {
/*
* Default to using the Internet root servers.
*/
result = dns_master_loadbuffer(&source, &db->origin,
&db->origin, db->rdclass,
DNS_MASTER_HINT,
&callbacks, db->mctx);
} else
result = ISC_R_NOTFOUND;
eresult = dns_db_endload(db, &callbacks);
if (result == ISC_R_SUCCESS || result == DNS_R_SEENINCLUDE)
result = eresult;
if (result != ISC_R_SUCCESS && result != DNS_R_SEENINCLUDE)
goto failure;
if (check_hints(db) != ISC_R_SUCCESS)
isc_log_write(dns_lctx, DNS_LOGCATEGORY_GENERAL,
DNS_LOGMODULE_HINTS, ISC_LOG_WARNING,
"extra data in root hints '%s'",
(filename != NULL) ? filename : "<BUILT-IN>");
*target = db;
return (ISC_R_SUCCESS);
failure:
isc_log_write(dns_lctx, DNS_LOGCATEGORY_GENERAL, DNS_LOGMODULE_HINTS,
ISC_LOG_ERROR, "could not configure root hints from "
"'%s': %s", (filename != NULL) ? filename : "<BUILT-IN>",
isc_result_totext(result));
if (db != NULL)
dns_db_detach(&db);
return (result);
}
