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|
/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
/*! \file */
#include "nstest.h"
#include <inttypes.h>
#include <stdbool.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <isc/app.h>
#include <isc/buffer.h>
#include <isc/file.h>
#include <isc/hash.h>
#include <isc/managers.h>
#include <isc/mem.h>
#include <isc/netmgr.h>
#include <isc/os.h>
#include <isc/print.h>
#include <isc/random.h>
#include <isc/resource.h>
#include <isc/socket.h>
#include <isc/stdio.h>
#include <isc/string.h>
#include <isc/task.h>
#include <isc/timer.h>
#include <isc/util.h>
#include <dns/cache.h>
#include <dns/db.h>
#include <dns/dispatch.h>
#include <dns/fixedname.h>
#include <dns/log.h>
#include <dns/name.h>
#include <dns/result.h>
#include <dns/view.h>
#include <dns/zone.h>
#include <ns/client.h>
#include <ns/hooks.h>
#include <ns/interfacemgr.h>
#include <ns/server.h>
isc_mem_t *mctx = NULL;
isc_log_t *lctx = NULL;
isc_taskmgr_t *taskmgr = NULL;
isc_task_t *maintask = NULL;
isc_timermgr_t *timermgr = NULL;
isc_socketmgr_t *socketmgr = NULL;
isc_nm_t *netmgr = NULL;
dns_zonemgr_t *zonemgr = NULL;
dns_dispatchmgr_t *dispatchmgr = NULL;
ns_clientmgr_t *clientmgr = NULL;
ns_interfacemgr_t *interfacemgr = NULL;
ns_server_t *sctx = NULL;
bool app_running = false;
int ncpus;
bool debug_mem_record = true;
static atomic_bool run_managers = false;
static bool dst_active = false;
static bool test_running = false;
static dns_zone_t *served_zone = NULL;
/*
* We don't want to use netmgr-based client accounting, we need to emulate it.
*/
atomic_uint_fast32_t client_refs[32];
atomic_uintptr_t client_addrs[32];
void
__wrap_isc__nmhandle_attach(isc_nmhandle_t *source, isc_nmhandle_t **targetp);
void
__wrap_isc__nmhandle_detach(isc_nmhandle_t **handlep);
void
__wrap_isc__nmhandle_attach(isc_nmhandle_t *source, isc_nmhandle_t **targetp) {
ns_client_t *client = (ns_client_t *)source;
int i;
for (i = 0; i < 32; i++) {
if (atomic_load(&client_addrs[i]) == (uintptr_t)client) {
break;
}
}
INSIST(i < 32);
INSIST(atomic_load(&client_refs[i]) > 0);
atomic_fetch_add(&client_refs[i], 1);
*targetp = source;
return;
}
void
__wrap_isc__nmhandle_detach(isc_nmhandle_t **handlep) {
isc_nmhandle_t *handle = *handlep;
ns_client_t *client = (ns_client_t *)handle;
int i;
*handlep = NULL;
for (i = 0; i < 32; i++) {
if (atomic_load(&client_addrs[i]) == (uintptr_t)client) {
break;
}
}
INSIST(i < 32);
if (atomic_fetch_sub(&client_refs[i], 1) == 1) {
dns_view_detach(&client->view);
client->state = 4;
ns__client_reset_cb(client);
ns__client_put_cb(client);
isc_mem_put(mctx, client, sizeof(ns_client_t));
}
return;
}
#ifdef USE_LIBTOOL
void
isc__nmhandle_attach(isc_nmhandle_t *source, isc_nmhandle_t **targetp) {
__wrap_isc__nmhandle_attach(source, targetp);
}
void
isc__nmhandle_detach(isc_nmhandle_t **handle) {
__wrap_isc__nmhandle_detach(handle);
}
#endif /* USE_LIBTOOL */
/*
* Logging categories: this needs to match the list in lib/ns/log.c.
*/
static isc_logcategory_t categories[] = { { "", 0 },
{ "client", 0 },
{ "network", 0 },
{ "update", 0 },
{ "queries", 0 },
{ "unmatched", 0 },
{ "update-security", 0 },
{ "query-errors", 0 },
{ NULL, 0 } };
static isc_result_t
matchview(isc_netaddr_t *srcaddr, isc_netaddr_t *destaddr,
dns_message_t *message, dns_aclenv_t *env, isc_result_t *sigresultp,
dns_view_t **viewp) {
UNUSED(srcaddr);
UNUSED(destaddr);
UNUSED(message);
UNUSED(env);
UNUSED(sigresultp);
UNUSED(viewp);
return (ISC_R_NOTIMPLEMENTED);
}
/*
* These need to be shut down from a running task.
*/
static atomic_bool shutdown_done = false;
static void
shutdown_managers(isc_task_t *task, isc_event_t *event) {
UNUSED(task);
if (interfacemgr != NULL) {
ns_interfacemgr_shutdown(interfacemgr);
ns_interfacemgr_detach(&interfacemgr);
}
if (dispatchmgr != NULL) {
dns_dispatchmgr_destroy(&dispatchmgr);
}
atomic_store(&shutdown_done, true);
atomic_store(&run_managers, false);
isc_event_free(&event);
}
static void
cleanup_managers(void) {
atomic_store(&shutdown_done, false);
if (maintask != NULL) {
isc_task_shutdown(maintask);
isc_task_destroy(&maintask);
}
while (atomic_load(&run_managers) && !atomic_load(&shutdown_done)) {
/*
* There's no straightforward way to determine
* whether all the clients have shut down, so
* we'll just sleep for a bit and hope.
*/
ns_test_nap(500000);
}
if (sctx != NULL) {
ns_server_detach(&sctx);
}
if (interfacemgr != NULL) {
ns_interfacemgr_detach(&interfacemgr);
}
if (socketmgr != NULL) {
isc_socketmgr_destroy(&socketmgr);
}
isc_managers_destroy(netmgr == NULL ? NULL : &netmgr,
taskmgr == NULL ? NULL : &taskmgr);
if (timermgr != NULL) {
isc_timermgr_destroy(&timermgr);
}
if (app_running) {
isc_app_finish();
}
}
static void
scan_interfaces(isc_task_t *task, isc_event_t *event) {
UNUSED(task);
ns_interfacemgr_scan(interfacemgr, true);
isc_event_free(&event);
}
static isc_result_t
create_managers(void) {
isc_result_t result;
in_port_t port = 5300 + isc_random8();
ns_listenlist_t *listenon = NULL;
isc_event_t *event = NULL;
ncpus = isc_os_ncpus();
CHECK(isc_managers_create(mctx, ncpus, 0, &netmgr, &taskmgr));
CHECK(isc_task_create_bound(taskmgr, 0, &maintask, 0));
isc_taskmgr_setexcltask(taskmgr, maintask);
CHECK(isc_task_onshutdown(maintask, shutdown_managers, NULL));
CHECK(isc_timermgr_create(mctx, &timermgr));
CHECK(isc_socketmgr_create(mctx, &socketmgr));
CHECK(ns_server_create(mctx, matchview, &sctx));
CHECK(dns_dispatchmgr_create(mctx, &dispatchmgr));
CHECK(ns_interfacemgr_create(mctx, sctx, taskmgr, timermgr, socketmgr,
netmgr, dispatchmgr, maintask, ncpus, NULL,
ncpus, &interfacemgr));
CHECK(ns_listenlist_default(mctx, port, -1, true, &listenon));
ns_interfacemgr_setlistenon4(interfacemgr, listenon);
ns_listenlist_detach(&listenon);
event = isc_event_allocate(mctx, maintask, ISC_TASKEVENT_TEST,
scan_interfaces, NULL, sizeof(isc_event_t));
isc_task_send(maintask, &event);
/*
* There's no straightforward way to determine
* whether the interfaces have been scanned,
* we'll just sleep for a bit and hope.
*/
ns_test_nap(500000);
ns_interface_t *ifp = ns__interfacemgr_getif(interfacemgr);
clientmgr = ifp->clientmgr;
atomic_store(&run_managers, true);
return (ISC_R_SUCCESS);
cleanup:
cleanup_managers();
return (result);
}
isc_result_t
ns_test_begin(FILE *logfile, bool start_managers) {
isc_result_t result;
INSIST(!test_running);
test_running = true;
if (start_managers) {
isc_resourcevalue_t files;
/*
* The 'listenlist_test', 'notify_test', and 'query_test'
* tests need more than 256 descriptors with 8 cpus.
* Bump up to at least 1024.
*/
result = isc_resource_getcurlimit(isc_resource_openfiles,
&files);
if (result == ISC_R_SUCCESS) {
if (files < 1024) {
files = 1024;
(void)isc_resource_setlimit(
isc_resource_openfiles, files);
}
}
CHECK(isc_app_start());
}
if (debug_mem_record) {
isc_mem_debugging |= ISC_MEM_DEBUGRECORD;
}
INSIST(mctx == NULL);
isc_mem_create(&mctx);
if (!dst_active) {
CHECK(dst_lib_init(mctx, NULL));
dst_active = true;
}
if (logfile != NULL) {
isc_logdestination_t destination;
isc_logconfig_t *logconfig = NULL;
INSIST(lctx == NULL);
isc_log_create(mctx, &lctx, &logconfig);
isc_log_registercategories(lctx, categories);
isc_log_setcontext(lctx);
dns_log_init(lctx);
dns_log_setcontext(lctx);
destination.file.stream = logfile;
destination.file.name = NULL;
destination.file.versions = ISC_LOG_ROLLNEVER;
destination.file.maximum_size = 0;
isc_log_createchannel(logconfig, "stderr", ISC_LOG_TOFILEDESC,
ISC_LOG_DYNAMIC, &destination, 0);
CHECK(isc_log_usechannel(logconfig, "stderr", NULL, NULL));
}
dns_result_register();
if (start_managers) {
CHECK(create_managers());
}
/*
* atf-run changes us to a /tmp directory, so tests
* that access test data files must first chdir to the proper
* location.
*/
if (chdir(TESTS) == -1) {
CHECK(ISC_R_FAILURE);
}
return (ISC_R_SUCCESS);
cleanup:
ns_test_end();
return (result);
}
void
ns_test_end(void) {
cleanup_managers();
dst_lib_destroy();
dst_active = false;
if (lctx != NULL) {
isc_log_destroy(&lctx);
}
if (mctx != NULL) {
isc_mem_destroy(&mctx);
}
test_running = false;
}
isc_result_t
ns_test_makeview(const char *name, bool with_cache, dns_view_t **viewp) {
dns_cache_t *cache = NULL;
dns_view_t *view = NULL;
isc_result_t result;
CHECK(dns_view_create(mctx, dns_rdataclass_in, name, &view));
if (with_cache) {
CHECK(dns_cache_create(mctx, mctx, taskmgr, timermgr,
dns_rdataclass_in, "", "rbt", 0, NULL,
&cache));
dns_view_setcache(view, cache, false);
/*
* Reference count for "cache" is now at 2, so decrement it in
* order for the cache to be automatically freed when "view"
* gets freed.
*/
dns_cache_detach(&cache);
}
*viewp = view;
return (ISC_R_SUCCESS);
cleanup:
if (view != NULL) {
dns_view_detach(&view);
}
return (result);
}
/*
* Create a zone with origin 'name', return a pointer to the zone object in
* 'zonep'. If 'view' is set, add the zone to that view; otherwise, create
* a new view for the purpose.
*
* If the created view is going to be needed by the caller subsequently,
* then 'keepview' should be set to true; this will prevent the view
* from being detached. In this case, the caller is responsible for
* detaching the view.
*/
isc_result_t
ns_test_makezone(const char *name, dns_zone_t **zonep, dns_view_t *view,
bool keepview) {
isc_result_t result;
dns_zone_t *zone = NULL;
isc_buffer_t buffer;
dns_fixedname_t fixorigin;
dns_name_t *origin;
if (view == NULL) {
CHECK(dns_view_create(mctx, dns_rdataclass_in, "view", &view));
} else if (!keepview) {
keepview = true;
}
zone = *zonep;
if (zone == NULL) {
CHECK(dns_zone_create(&zone, mctx));
}
isc_buffer_constinit(&buffer, name, strlen(name));
isc_buffer_add(&buffer, strlen(name));
origin = dns_fixedname_initname(&fixorigin);
CHECK(dns_name_fromtext(origin, &buffer, dns_rootname, 0, NULL));
CHECK(dns_zone_setorigin(zone, origin));
dns_zone_setview(zone, view);
dns_zone_settype(zone, dns_zone_primary);
dns_zone_setclass(zone, view->rdclass);
dns_view_addzone(view, zone);
if (!keepview) {
dns_view_detach(&view);
}
*zonep = zone;
return (ISC_R_SUCCESS);
cleanup:
if (zone != NULL) {
dns_zone_detach(&zone);
}
if (view != NULL) {
dns_view_detach(&view);
}
return (result);
}
isc_result_t
ns_test_setupzonemgr(void) {
isc_result_t result;
REQUIRE(zonemgr == NULL);
result = dns_zonemgr_create(mctx, taskmgr, timermgr, socketmgr,
&zonemgr);
return (result);
}
isc_result_t
ns_test_managezone(dns_zone_t *zone) {
isc_result_t result;
REQUIRE(zonemgr != NULL);
result = dns_zonemgr_setsize(zonemgr, 1);
if (result != ISC_R_SUCCESS) {
return (result);
}
result = dns_zonemgr_managezone(zonemgr, zone);
return (result);
}
void
ns_test_releasezone(dns_zone_t *zone) {
REQUIRE(zonemgr != NULL);
dns_zonemgr_releasezone(zonemgr, zone);
}
void
ns_test_closezonemgr(void) {
REQUIRE(zonemgr != NULL);
dns_zonemgr_shutdown(zonemgr);
dns_zonemgr_detach(&zonemgr);
}
isc_result_t
ns_test_serve_zone(const char *zonename, const char *filename,
dns_view_t *view) {
isc_result_t result;
dns_db_t *db = NULL;
/*
* Prepare zone structure for further processing.
*/
result = ns_test_makezone(zonename, &served_zone, view, true);
if (result != ISC_R_SUCCESS) {
return (result);
}
/*
* Start zone manager.
*/
result = ns_test_setupzonemgr();
if (result != ISC_R_SUCCESS) {
goto free_zone;
}
/*
* Add the zone to the zone manager.
*/
result = ns_test_managezone(served_zone);
if (result != ISC_R_SUCCESS) {
goto close_zonemgr;
}
view->nocookieudp = 512;
/*
* Set path to the master file for the zone and then load it.
*/
dns_zone_setfile(served_zone, filename, dns_masterformat_text,
&dns_master_style_default);
result = dns_zone_load(served_zone, false);
if (result != ISC_R_SUCCESS) {
goto release_zone;
}
/*
* The zone should now be loaded; test it.
*/
result = dns_zone_getdb(served_zone, &db);
if (result != ISC_R_SUCCESS) {
goto release_zone;
}
if (db != NULL) {
dns_db_detach(&db);
}
return (ISC_R_SUCCESS);
release_zone:
ns_test_releasezone(served_zone);
close_zonemgr:
ns_test_closezonemgr();
free_zone:
dns_zone_detach(&served_zone);
return (result);
}
void
ns_test_cleanup_zone(void) {
ns_test_releasezone(served_zone);
ns_test_closezonemgr();
dns_zone_detach(&served_zone);
}
isc_result_t
ns_test_getclient(ns_interface_t *ifp0, bool tcp, ns_client_t **clientp) {
isc_result_t result;
ns_client_t *client = isc_mem_get(mctx, sizeof(ns_client_t));
int i;
UNUSED(ifp0);
UNUSED(tcp);
result = ns__client_setup(client, clientmgr, true);
for (i = 0; i < 32; i++) {
if (atomic_load(&client_addrs[i]) == (uintptr_t)NULL ||
atomic_load(&client_addrs[i]) == (uintptr_t)client)
{
break;
}
}
REQUIRE(i < 32);
atomic_store(&client_refs[i], 2);
atomic_store(&client_addrs[i], (uintptr_t)client);
client->handle = (isc_nmhandle_t *)client; /* Hack */
*clientp = client;
return (result);
}
/*%
* Synthesize a DNS message based on supplied QNAME, QTYPE and flags, then
* parse it and store the results in client->message.
*/
static isc_result_t
attach_query_msg_to_client(ns_client_t *client, const char *qnamestr,
dns_rdatatype_t qtype, unsigned int qflags) {
dns_rdataset_t *qrdataset = NULL;
dns_message_t *message = NULL;
unsigned char query[65535];
dns_name_t *qname = NULL;
isc_buffer_t querybuf;
dns_compress_t cctx;
isc_result_t result;
REQUIRE(client != NULL);
REQUIRE(qnamestr != NULL);
/*
* Create a new DNS message holding a query.
*/
dns_message_create(mctx, DNS_MESSAGE_INTENTRENDER, &message);
/*
* Set query ID to a random value.
*/
message->id = isc_random16();
/*
* Set query flags as requested by the caller.
*/
message->flags = qflags;
/*
* Allocate structures required to construct the query.
*/
result = dns_message_gettemprdataset(message, &qrdataset);
if (result != ISC_R_SUCCESS) {
goto destroy_message;
}
result = dns_message_gettempname(message, &qname);
if (result != ISC_R_SUCCESS) {
goto put_rdataset;
}
/*
* Convert "qnamestr" to a DNS name, create a question rdataset of
* class IN and type "qtype", link the two and add the result to the
* QUESTION section of the query.
*/
result = dns_name_fromstring(qname, qnamestr, 0, mctx);
if (result != ISC_R_SUCCESS) {
goto put_name;
}
dns_rdataset_makequestion(qrdataset, dns_rdataclass_in, qtype);
ISC_LIST_APPEND(qname->list, qrdataset, link);
dns_message_addname(message, qname, DNS_SECTION_QUESTION);
/*
* Render the query.
*/
dns_compress_init(&cctx, -1, mctx);
isc_buffer_init(&querybuf, query, sizeof(query));
result = dns_message_renderbegin(message, &cctx, &querybuf);
if (result != ISC_R_SUCCESS) {
goto destroy_message;
}
result = dns_message_rendersection(message, DNS_SECTION_QUESTION, 0);
if (result != ISC_R_SUCCESS) {
goto destroy_message;
}
result = dns_message_renderend(message);
if (result != ISC_R_SUCCESS) {
goto destroy_message;
}
dns_compress_invalidate(&cctx);
/*
* Destroy the created message as it was rendered into "querybuf" and
* the latter is all we are going to need from now on.
*/
dns_message_detach(&message);
/*
* Parse the rendered query, storing results in client->message.
*/
isc_buffer_first(&querybuf);
return (dns_message_parse(client->message, &querybuf, 0));
put_name:
dns_message_puttempname(message, &qname);
put_rdataset:
dns_message_puttemprdataset(message, &qrdataset);
destroy_message:
dns_message_detach(&message);
return (result);
}
/*%
* A hook action which stores the query context pointed to by "arg" at
* "data". Causes execution to be interrupted at hook insertion
* point.
*/
static ns_hookresult_t
extract_qctx(void *arg, void *data, isc_result_t *resultp) {
query_ctx_t **qctxp;
query_ctx_t *qctx;
REQUIRE(arg != NULL);
REQUIRE(data != NULL);
REQUIRE(resultp != NULL);
/*
* qctx is a stack variable in lib/ns/query.c. Its contents need to be
* duplicated or otherwise they will become invalidated once the stack
* gets unwound.
*/
qctx = isc_mem_get(mctx, sizeof(*qctx));
if (qctx != NULL) {
memmove(qctx, (query_ctx_t *)arg, sizeof(*qctx));
}
qctxp = (query_ctx_t **)data;
/*
* If memory allocation failed, the supplied pointer will simply be set
* to NULL. We rely on the user of this hook to react properly.
*/
*qctxp = qctx;
*resultp = ISC_R_UNSET;
return (NS_HOOK_RETURN);
}
/*%
* Initialize a query context for "client" and store it in "qctxp".
*
* Requires:
*
* \li "client->message" to hold a parsed DNS query.
*/
static isc_result_t
create_qctx_for_client(ns_client_t *client, query_ctx_t **qctxp) {
ns_hooktable_t *saved_hook_table = NULL, *query_hooks = NULL;
const ns_hook_t hook = {
.action = extract_qctx,
.action_data = qctxp,
};
REQUIRE(client != NULL);
REQUIRE(qctxp != NULL);
REQUIRE(*qctxp == NULL);
/*
* Call ns_query_start() to initialize a query context for given
* client, but first hook into query_setup() so that we can just
* extract an initialized query context, without kicking off any
* further processing. Make sure we do not overwrite any previously
* set hooks.
*/
ns_hooktable_create(mctx, &query_hooks);
ns_hook_add(query_hooks, mctx, NS_QUERY_SETUP, &hook);
saved_hook_table = ns__hook_table;
ns__hook_table = query_hooks;
ns_query_start(client, client->handle);
ns__hook_table = saved_hook_table;
ns_hooktable_free(mctx, (void **)&query_hooks);
isc_nmhandle_detach(&client->reqhandle);
if (*qctxp == NULL) {
return (ISC_R_NOMEMORY);
} else {
return (ISC_R_SUCCESS);
}
}
isc_result_t
ns_test_qctx_create(const ns_test_qctx_create_params_t *params,
query_ctx_t **qctxp) {
ns_client_t *client = NULL;
isc_result_t result;
isc_nmhandle_t *handle = NULL;
REQUIRE(params != NULL);
REQUIRE(params->qname != NULL);
REQUIRE(qctxp != NULL);
REQUIRE(*qctxp == NULL);
/*
* Allocate and initialize a client structure.
*/
result = ns_test_getclient(NULL, false, &client);
if (result != ISC_R_SUCCESS) {
return (result);
}
TIME_NOW(&client->tnow);
/*
* Every client needs to belong to a view.
*/
result = ns_test_makeview("view", params->with_cache, &client->view);
if (result != ISC_R_SUCCESS) {
goto detach_client;
}
/*
* Synthesize a DNS query using given QNAME, QTYPE and flags, storing
* it in client->message.
*/
result = attach_query_msg_to_client(client, params->qname,
params->qtype, params->qflags);
if (result != ISC_R_SUCCESS) {
goto detach_view;
}
/*
* Allow recursion for the client. As NS_CLIENTATTR_RA normally gets
* set in ns__client_request(), i.e. earlier than the unit tests hook
* into the call chain, just set it manually.
*/
client->attributes |= NS_CLIENTATTR_RA;
/*
* Create a query context for a client sending the previously
* synthesized query.
*/
result = create_qctx_for_client(client, qctxp);
if (result != ISC_R_SUCCESS) {
goto detach_query;
}
/*
* The reference count for "client" is now at 2, so we need to
* decrement it in order for it to drop to zero when "qctx" gets
* destroyed.
*/
handle = client->handle;
isc_nmhandle_detach(&handle);
return (ISC_R_SUCCESS);
detach_query:
dns_message_detach(&client->message);
detach_view:
dns_view_detach(&client->view);
detach_client:
isc_nmhandle_detach(&client->handle);
return (result);
}
void
ns_test_qctx_destroy(query_ctx_t **qctxp) {
query_ctx_t *qctx;
REQUIRE(qctxp != NULL);
REQUIRE(*qctxp != NULL);
qctx = *qctxp;
*qctxp = NULL;
if (qctx->zone != NULL) {
dns_zone_detach(&qctx->zone);
}
if (qctx->db != NULL) {
dns_db_detach(&qctx->db);
}
if (qctx->client != NULL) {
isc_nmhandle_detach(&qctx->client->handle);
}
isc_mem_put(mctx, qctx, sizeof(*qctx));
}
ns_hookresult_t
ns_test_hook_catch_call(void *arg, void *data, isc_result_t *resultp) {
UNUSED(arg);
UNUSED(data);
*resultp = ISC_R_UNSET;
return (NS_HOOK_RETURN);
}
/*
* Sleep for 'usec' microseconds.
*/
void
ns_test_nap(uint32_t usec) {
struct timespec ts;
ts.tv_sec = usec / 1000000;
ts.tv_nsec = (usec % 1000000) * 1000;
nanosleep(&ts, NULL);
}
isc_result_t
ns_test_loaddb(dns_db_t **db, dns_dbtype_t dbtype, const char *origin,
const char *testfile) {
isc_result_t result;
dns_fixedname_t fixed;
dns_name_t *name;
name = dns_fixedname_initname(&fixed);
result = dns_name_fromstring(name, origin, 0, NULL);
if (result != ISC_R_SUCCESS) {
return (result);
}
result = dns_db_create(mctx, "rbt", name, dbtype, dns_rdataclass_in, 0,
NULL, db);
if (result != ISC_R_SUCCESS) {
return (result);
}
result = dns_db_load(*db, testfile, dns_masterformat_text, 0);
return (result);
}
static int
fromhex(char c) {
if (c >= '0' && c <= '9') {
return (c - '0');
} else if (c >= 'a' && c <= 'f') {
return (c - 'a' + 10);
} else if (c >= 'A' && c <= 'F') {
return (c - 'A' + 10);
}
printf("bad input format: %02x\n", c);
exit(3);
}
isc_result_t
ns_test_getdata(const char *file, unsigned char *buf, size_t bufsiz,
size_t *sizep) {
isc_result_t result;
unsigned char *bp;
char *rp, *wp;
char s[BUFSIZ];
size_t len, i;
FILE *f = NULL;
int n;
result = isc_stdio_open(file, "r", &f);
if (result != ISC_R_SUCCESS) {
return (result);
}
bp = buf;
while (fgets(s, sizeof(s), f) != NULL) {
rp = s;
wp = s;
len = 0;
while (*rp != '\0') {
if (*rp == '#') {
break;
}
if (*rp != ' ' && *rp != '\t' && *rp != '\r' &&
*rp != '\n')
{
*wp++ = *rp;
len++;
}
rp++;
}
if (len == 0U) {
continue;
}
if (len % 2 != 0U) {
CHECK(ISC_R_UNEXPECTEDEND);
}
if (len > bufsiz * 2) {
CHECK(ISC_R_NOSPACE);
}
rp = s;
for (i = 0; i < len; i += 2) {
n = fromhex(*rp++);
n *= 16;
n += fromhex(*rp++);
*bp++ = n;
}
}
*sizep = bp - buf;
result = ISC_R_SUCCESS;
cleanup:
isc_stdio_close(f);
return (result);
}
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