diff options
Diffstat (limited to 'lib/dns/rootns.c')
| -rw-r--r-- | lib/dns/rootns.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/lib/dns/rootns.c b/lib/dns/rootns.c new file mode 100644 index 00000000..448a5258 --- /dev/null +++ b/lib/dns/rootns.c @@ -0,0 +1,127 @@ +/* + * Copyright (C) 1999, 2000 Internet Software Consortium. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS + * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE + * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL + * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR + * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS + * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + */ + +#include <config.h> + +#include <stddef.h> +#include <string.h> + +#include <isc/assertions.h> +#include <isc/error.h> +#include <isc/types.h> + +#include <dns/types.h> +#include <dns/db.h> +#include <dns/master.h> +#include <dns/rootns.h> + +static char root_ns[] = +";\n" +"; Internet Root Nameservers\n" +";\n" +"; Thu Sep 23 17:57:37 PDT 1999\n" +";\n" +"$TTL 518400\n" +". 518400 IN NS A.ROOT-SERVERS.NET.\n" +". 518400 IN NS B.ROOT-SERVERS.NET.\n" +". 518400 IN NS C.ROOT-SERVERS.NET.\n" +". 518400 IN NS D.ROOT-SERVERS.NET.\n" +". 518400 IN NS E.ROOT-SERVERS.NET.\n" +". 518400 IN NS F.ROOT-SERVERS.NET.\n" +". 518400 IN NS G.ROOT-SERVERS.NET.\n" +". 518400 IN NS H.ROOT-SERVERS.NET.\n" +". 518400 IN NS I.ROOT-SERVERS.NET.\n" +". 518400 IN NS J.ROOT-SERVERS.NET.\n" +". 518400 IN NS K.ROOT-SERVERS.NET.\n" +". 518400 IN NS L.ROOT-SERVERS.NET.\n" +". 518400 IN NS M.ROOT-SERVERS.NET.\n" +"A.ROOT-SERVERS.NET. 3600000 IN A 198.41.0.4\n" +"B.ROOT-SERVERS.NET. 3600000 IN A 128.9.0.107\n" +"C.ROOT-SERVERS.NET. 3600000 IN A 192.33.4.12\n" +"D.ROOT-SERVERS.NET. 3600000 IN A 128.8.10.90\n" +"E.ROOT-SERVERS.NET. 3600000 IN A 192.203.230.10\n" +"F.ROOT-SERVERS.NET. 3600000 IN A 192.5.5.241\n" +"G.ROOT-SERVERS.NET. 3600000 IN A 192.112.36.4\n" +"H.ROOT-SERVERS.NET. 3600000 IN A 128.63.2.53\n" +"I.ROOT-SERVERS.NET. 3600000 IN A 192.36.148.17\n" +"J.ROOT-SERVERS.NET. 3600000 IN A 198.41.0.10\n" +"K.ROOT-SERVERS.NET. 3600000 IN A 193.0.14.129\n" +"L.ROOT-SERVERS.NET. 3600000 IN A 198.32.64.12\n" +"M.ROOT-SERVERS.NET. 3600000 IN A 202.12.27.33\n"; + +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; + size_t len; + int soacount, nscount; + dns_rdatacallbacks_t callbacks; + dns_db_t *db = NULL; + + REQUIRE(target != NULL && *target == NULL); + + result = dns_db_create(mctx, "rbt", dns_rootname, ISC_FALSE, + rdclass, 0, NULL, &db); + if (result != ISC_R_SUCCESS) + return (result); + + dns_rdatacallbacks_init(&callbacks); + + len = strlen(root_ns); + isc_buffer_init(&source, root_ns, len, ISC_BUFFERTYPE_TEXT); + isc_buffer_add(&source, len); + + result = dns_db_beginload(db, &callbacks.add, + &callbacks.add_private); + if (result != ISC_R_SUCCESS) + return (result); + if (filename != NULL) { + /* + * Load the hints from the specified filename. + */ + result = dns_master_loadfile(filename, &db->origin, + &db->origin, + db->rdclass, ISC_FALSE, + &soacount, &nscount, &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, ISC_FALSE, + &soacount, &nscount, &callbacks, + db->mctx); + } else + result = DNS_R_NOTFOUND; + eresult = dns_db_endload(db, &callbacks.add_private); + if (result == ISC_R_SUCCESS) + result = eresult; + if (result != ISC_R_SUCCESS) + goto db_detach; + + *target = db; + return (DNS_R_SUCCESS); + + db_detach: + dns_db_detach(&db); + + return (result); +} |