+++ /dev/null
-/*
- * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
- *
- * 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.
- */
-
-#ifndef WIN32
-#include <arpa/inet.h>
-#include <netinet/in.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <unistd.h>
-#endif /* ifndef WIN32 */
-
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <isc/app.h>
-#include <isc/attributes.h>
-#include <isc/buffer.h>
-#include <isc/commandline.h>
-#include <isc/lib.h>
-#include <isc/mem.h>
-#include <isc/print.h>
-#include <isc/sockaddr.h>
-#include <isc/socket.h>
-#include <isc/task.h>
-#include <isc/timer.h>
-#include <isc/util.h>
-
-#include <dns/client.h>
-#include <dns/fixedname.h>
-#include <dns/lib.h>
-#include <dns/name.h>
-#include <dns/rdataset.h>
-#include <dns/rdatatype.h>
-#include <dns/result.h>
-
-#define MAX_SERVERS 10
-#define MAX_QUERIES 100
-
-static dns_client_t *client = NULL;
-static isc_task_t *query_task = NULL;
-static isc_appctx_t *query_actx = NULL;
-static unsigned int outstanding_queries = 0;
-static const char *def_server = "127.0.0.1";
-static FILE *fp;
-
-struct query_trans {
- int id;
- bool inuse;
- dns_rdatatype_t type;
- dns_fixedname_t fixedname;
- dns_name_t *qname;
- dns_namelist_t answerlist;
- dns_clientrestrans_t *xid;
-};
-
-static struct query_trans query_array[MAX_QUERIES];
-
-static isc_result_t
-dispatch_query(struct query_trans *trans);
-
-static void
-ctxs_destroy(isc_mem_t **mctxp, isc_appctx_t **actxp, isc_taskmgr_t **taskmgrp,
- isc_socketmgr_t **socketmgrp, isc_timermgr_t **timermgrp) {
- if (*taskmgrp != NULL) {
- isc_taskmgr_destroy(taskmgrp);
- }
-
- if (*timermgrp != NULL) {
- isc_timermgr_destroy(timermgrp);
- }
-
- if (*socketmgrp != NULL) {
- isc_socketmgr_destroy(socketmgrp);
- }
-
- if (*actxp != NULL) {
- isc_appctx_destroy(actxp);
- }
-
- if (*mctxp != NULL) {
- isc_mem_destroy(mctxp);
- }
-}
-
-static isc_result_t
-ctxs_init(isc_mem_t **mctxp, isc_appctx_t **actxp, isc_taskmgr_t **taskmgrp,
- isc_socketmgr_t **socketmgrp, isc_timermgr_t **timermgrp) {
- isc_result_t result;
-
- isc_mem_create(mctxp);
-
- result = isc_appctx_create(*mctxp, actxp);
- if (result != ISC_R_SUCCESS) {
- goto fail;
- }
-
- result = isc_taskmgr_createinctx(*mctxp, 1, 0, taskmgrp);
- if (result != ISC_R_SUCCESS) {
- goto fail;
- }
-
- result = isc_socketmgr_createinctx(*mctxp, socketmgrp);
- if (result != ISC_R_SUCCESS) {
- goto fail;
- }
-
- result = isc_timermgr_createinctx(*mctxp, timermgrp);
- if (result != ISC_R_SUCCESS) {
- goto fail;
- }
-
- return (ISC_R_SUCCESS);
-
-fail:
- ctxs_destroy(mctxp, actxp, taskmgrp, socketmgrp, timermgrp);
-
- return (result);
-}
-
-static isc_result_t
-printdata(dns_rdataset_t *rdataset, dns_name_t *owner) {
- isc_buffer_t target;
- isc_result_t result;
- isc_region_t r;
- char t[4096];
-
- isc_buffer_init(&target, t, sizeof(t));
-
- if (!dns_rdataset_isassociated(rdataset)) {
- return (ISC_R_SUCCESS);
- }
- result = dns_rdataset_totext(rdataset, owner, false, false, &target);
- if (result != ISC_R_SUCCESS) {
- return (result);
- }
- isc_buffer_usedregion(&target, &r);
- printf(" %.*s", (int)r.length, (char *)r.base);
-
- return (ISC_R_SUCCESS);
-}
-
-static void
-process_answer(isc_task_t *task, isc_event_t *event) {
- struct query_trans *trans = event->ev_arg;
- dns_clientresevent_t *rev = (dns_clientresevent_t *)event;
- dns_name_t *name;
- dns_rdataset_t *rdataset;
- isc_result_t result;
-
- REQUIRE(task == query_task);
- REQUIRE(trans->inuse);
- REQUIRE(outstanding_queries > 0);
-
- printf("answer[%2d]\n", trans->id);
-
- if (rev->result != ISC_R_SUCCESS) {
- printf(" failed: %u(%s)\n", rev->result,
- dns_result_totext(rev->result));
- }
-
- for (name = ISC_LIST_HEAD(rev->answerlist); name != NULL;
- name = ISC_LIST_NEXT(name, link))
- {
- for (rdataset = ISC_LIST_HEAD(name->list); rdataset != NULL;
- rdataset = ISC_LIST_NEXT(rdataset, link))
- {
- (void)printdata(rdataset, name);
- }
- }
-
- dns_client_freeresanswer(client, &rev->answerlist);
- dns_client_destroyrestrans(&trans->xid);
-
- isc_event_free(&event);
-
- trans->inuse = false;
- dns_fixedname_invalidate(&trans->fixedname);
- trans->qname = NULL;
- outstanding_queries--;
-
- result = dispatch_query(trans);
-#if 0 /* for cancel test */
- if (result == ISC_R_SUCCESS) {
- static int count = 0;
-
- if ((++count) % 10 == 0) {
- dns_client_cancelresolve(trans->xid);
- }
- }
-#endif /* if 0 */
- if (result == ISC_R_NOMORE && outstanding_queries == 0) {
- isc_app_ctxshutdown(query_actx);
- }
-}
-
-static isc_result_t
-dispatch_query(struct query_trans *trans) {
- isc_result_t result;
- unsigned int namelen;
- isc_buffer_t b;
- char buf[4096]; /* XXX ad hoc constant, but should be enough */
- char *cp;
-
- REQUIRE(trans != NULL);
- REQUIRE(!trans->inuse);
- REQUIRE(ISC_LIST_EMPTY(trans->answerlist));
- REQUIRE(outstanding_queries < MAX_QUERIES);
-
- /* Construct qname */
- cp = fgets(buf, sizeof(buf), fp);
- if (cp == NULL) {
- return (ISC_R_NOMORE);
- }
- /* zap NL if any */
- if ((cp = strchr(buf, '\n')) != NULL) {
- *cp = '\0';
- }
- namelen = strlen(buf);
- isc_buffer_init(&b, buf, namelen);
- isc_buffer_add(&b, namelen);
- trans->qname = dns_fixedname_initname(&trans->fixedname);
- result = dns_name_fromtext(trans->qname, &b, dns_rootname, 0, NULL);
- if (result != ISC_R_SUCCESS) {
- goto cleanup;
- }
-
- /* Start resolution */
- result = dns_client_startresolve(
- client, trans->qname, dns_rdataclass_in, trans->type, 0,
- query_task, process_answer, trans, &trans->xid);
- if (result != ISC_R_SUCCESS) {
- goto cleanup;
- }
-
- trans->inuse = true;
- outstanding_queries++;
-
- return (ISC_R_SUCCESS);
-
-cleanup:
- dns_fixedname_invalidate(&trans->fixedname);
-
- return (result);
-}
-
-ISC_NORETURN static void
-usage(void);
-
-static void
-usage(void) {
- fprintf(stderr, "usage: sample-async [-s server_address] [-t RR type] "
- "input_file\n");
-
- exit(1);
-}
-
-int
-main(int argc, char *argv[]) {
- int ch;
- isc_textregion_t tr;
- isc_mem_t *mctx = NULL;
- isc_taskmgr_t *taskmgr = NULL;
- isc_socketmgr_t *socketmgr = NULL;
- isc_timermgr_t *timermgr = NULL;
- int nservers = 0;
- const char *serveraddr[MAX_SERVERS];
- isc_sockaddr_t sa[MAX_SERVERS];
- isc_sockaddrlist_t servers;
- dns_rdatatype_t type = dns_rdatatype_a;
- struct in_addr inaddr;
- isc_result_t result;
- int i;
-
- while ((ch = isc_commandline_parse(argc, argv, "s:t:")) != -1) {
- switch (ch) {
- case 't':
- tr.base = isc_commandline_argument;
- tr.length = strlen(isc_commandline_argument);
- result = dns_rdatatype_fromtext(&type, &tr);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "invalid RRtype: %s\n",
- isc_commandline_argument);
- exit(1);
- }
- break;
- case 's':
- if (nservers == MAX_SERVERS) {
- fprintf(stderr, "too many servers (up to %d)\n",
- MAX_SERVERS);
- exit(1);
- }
- serveraddr[nservers++] =
- (const char *)isc_commandline_argument;
- break;
- default:
- usage();
- }
- }
-
- argc -= isc_commandline_index;
- argv += isc_commandline_index;
- if (argc < 1) {
- usage();
- }
-
- if (nservers == 0) {
- nservers = 1;
- serveraddr[0] = def_server;
- }
-
- for (i = 0; i < MAX_QUERIES; i++) {
- query_array[i].id = i;
- query_array[i].inuse = false;
- query_array[i].type = type;
- dns_fixedname_init(&query_array[i].fixedname);
- query_array[i].qname = NULL;
- ISC_LIST_INIT(query_array[i].answerlist);
- query_array[i].xid = NULL;
- }
-
- isc_lib_register();
- result = dns_lib_init();
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "dns_lib_init failed: %u\n", result);
- exit(1);
- }
-
- result = ctxs_init(&mctx, &query_actx, &taskmgr, &socketmgr, &timermgr);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "ctx create failed: %u\n", result);
- exit(1);
- }
-
- isc_app_ctxstart(query_actx);
-
- result = dns_client_create(mctx, query_actx, taskmgr, socketmgr,
- timermgr, 0, &client, NULL, NULL);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "dns_client_create failed: %u\n", result);
- exit(1);
- }
-
- /* Set nameservers */
- ISC_LIST_INIT(servers);
- for (i = 0; i < nservers; i++) {
- if (inet_pton(AF_INET, serveraddr[i], &inaddr) != 1) {
- fprintf(stderr, "failed to parse IPv4 address %s\n",
- serveraddr[i]);
- exit(1);
- }
- isc_sockaddr_fromin(&sa[i], &inaddr, 53);
- ISC_LIST_APPEND(servers, &sa[i], link);
- }
- result = dns_client_setservers(client, dns_rdataclass_in, NULL,
- &servers);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "set server failed: %u\n", result);
- exit(1);
- }
-
- /* Create the main task */
- query_task = NULL;
- result = isc_task_create(taskmgr, 0, &query_task);
- if (result != ISC_R_SUCCESS) {
- fprintf(stderr, "failed to create task: %u\n", result);
- exit(1);
- }
-
- /* Open input file */
- fp = fopen(argv[0], "r");
- if (fp == NULL) {
- fprintf(stderr, "failed to open input file: %s\n", argv[1]);
- exit(1);
- }
-
- /* Dispatch initial queries */
- for (i = 0; i < MAX_QUERIES; i++) {
- result = dispatch_query(&query_array[i]);
- if (result == ISC_R_NOMORE) {
- break;
- }
- }
-
- /* Start event loop */
- isc_app_ctxrun(query_actx);
-
- /* Sanity check */
- for (i = 0; i < MAX_QUERIES; i++) {
- INSIST(!query_array[i].inuse);
- }
-
- /* Cleanup */
- isc_task_detach(&query_task);
- dns_client_destroy(&client);
- dns_lib_shutdown();
- isc_app_ctxfinish(query_actx);
- ctxs_destroy(&mctx, &query_actx, &taskmgr, &socketmgr, &timermgr);
-
- return (0);
-}
+++ /dev/null
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projects / thirdparty / bind9.git / commitdiff
