Example #1
0
int
main(int argc, char *argv[]) {
	isc_result_t result;
#ifdef HAVE_LIBSCF
	char *instance = NULL;
#endif

#ifdef HAVE_GPERFTOOLS_PROFILER
	(void) ProfilerStart(NULL);
#endif

	/*
	 * Record version in core image.
	 * strings named.core | grep "named version:"
	 */
	strlcat(version,
#if defined(NO_VERSION_DATE) || !defined(__DATE__)
		"named version: BIND " VERSION " <" SRCID ">",
#else
		"named version: BIND " VERSION " <" SRCID "> (" __DATE__ ")",
#endif
		sizeof(version));
	result = isc_file_progname(*argv, program_name, sizeof(program_name));
	if (result != ISC_R_SUCCESS)
		ns_main_earlyfatal("program name too long");

	if (strcmp(program_name, "lwresd") == 0)
		ns_g_lwresdonly = ISC_TRUE;

	if (result != ISC_R_SUCCESS)
		ns_main_earlyfatal("failed to build internal symbol table");

	isc_assertion_setcallback(assertion_failed);
	isc_error_setfatal(library_fatal_error);
	isc_error_setunexpected(library_unexpected_error);

	ns_os_init(program_name);

	dns_result_register();
	dst_result_register();
	isccc_result_register();
#ifdef PKCS11CRYPTO
	pk11_result_register();
#endif

	parse_command_line(argc, argv);

	pfilter_open();

	/*
	 * Warn about common configuration error.
	 */
	if (ns_g_chrootdir != NULL) {
		int len = strlen(ns_g_chrootdir);
		if (strncmp(ns_g_chrootdir, ns_g_conffile, len) == 0 &&
		    (ns_g_conffile[len] == '/' || ns_g_conffile[len] == '\\'))
			ns_main_earlywarning("config filename (-c %s) contains "
					     "chroot path (-t %s)",
					     ns_g_conffile, ns_g_chrootdir);
	}

	result = isc_mem_create(0, 0, &ns_g_mctx);
	if (result != ISC_R_SUCCESS)
		ns_main_earlyfatal("isc_mem_create() failed: %s",
				   isc_result_totext(result));
	isc_mem_setname(ns_g_mctx, "main", NULL);

	setup();

	/*
	 * Start things running and then wait for a shutdown request
	 * or reload.
	 */
	do {
		result = isc_app_run();

		if (result == ISC_R_RELOAD) {
			ns_server_reloadwanted(ns_g_server);
		} else if (result != ISC_R_SUCCESS) {
			UNEXPECTED_ERROR(__FILE__, __LINE__,
					 "isc_app_run(): %s",
					 isc_result_totext(result));
			/*
			 * Force exit.
			 */
			result = ISC_R_SUCCESS;
		}
	} while (result != ISC_R_SUCCESS);

#ifdef HAVE_LIBSCF
	if (ns_smf_want_disable == 1) {
		result = ns_smf_get_instance(&instance, 1, ns_g_mctx);
		if (result == ISC_R_SUCCESS && instance != NULL) {
			if (smf_disable_instance(instance, 0) != 0)
				UNEXPECTED_ERROR(__FILE__, __LINE__,
						 "smf_disable_instance() "
						 "failed for %s : %s",
						 instance,
						 scf_strerror(scf_error()));
		}
		if (instance != NULL)
			isc_mem_free(ns_g_mctx, instance);
	}
#endif /* HAVE_LIBSCF */

	cleanup();

	if (want_stats) {
		isc_mem_stats(ns_g_mctx, stdout);
		isc_mutex_stats(stdout);
	}

	if (ns_g_memstatistics && memstats != NULL) {
		FILE *fp = NULL;
		result = isc_stdio_open(memstats, "w", &fp);
		if (result == ISC_R_SUCCESS) {
			isc_mem_stats(ns_g_mctx, fp);
			isc_mutex_stats(fp);
			isc_stdio_close(fp);
		}
	}
	isc_mem_destroy(&ns_g_mctx);
	isc_mem_checkdestroyed(stderr);

	ns_main_setmemstats(NULL);

	isc_app_finish();

	ns_os_closedevnull();

	ns_os_shutdown();

#ifdef HAVE_GPERFTOOLS_PROFILER
	ProfilerStop();
#endif

	return (0);
}
Example #2
0
int
main(int argc, char **argv) {
	isc_boolean_t show_final_mem = ISC_FALSE;
	isc_result_t result = ISC_R_SUCCESS;
	isc_taskmgr_t *taskmgr = NULL;
	isc_task_t *task = NULL;
	isc_log_t *log = NULL;
	isc_logconfig_t *logconfig = NULL;
	isc_logdestination_t logdest;
	cfg_parser_t *pctx = NULL;
	cfg_obj_t *config = NULL;
	const char *keyname = NULL;
	char *p;
	size_t argslen;
	int ch;
	int i;

	result = isc_file_progname(*argv, program, sizeof(program));
	if (result != ISC_R_SUCCESS)
		memcpy(program, "rndc", 5);
	progname = program;

	admin_conffile = RNDC_CONFFILE;
	admin_keyfile = RNDC_KEYFILE;

	result = isc_app_start();
	if (result != ISC_R_SUCCESS)
		fatal("isc_app_start() failed: %s", isc_result_totext(result));

	while ((ch = isc_commandline_parse(argc, argv, "c:k:Mmp:s:Vy:"))
	       != -1) {
		switch (ch) {
		case 'c':
			admin_conffile = isc_commandline_argument;
			break;

		case 'k':
			admin_keyfile = isc_commandline_argument;
			break;

		case 'M':
			isc_mem_debugging = ISC_MEM_DEBUGTRACE;
			break;

		case 'm':
			show_final_mem = ISC_TRUE;
			break;

		case 'p':
			remoteport = atoi(isc_commandline_argument);
			if (remoteport > 65535 || remoteport == 0)
				fatal("port '%s' out of range",
				      isc_commandline_argument);
			break;

		case 's':
			servername = isc_commandline_argument;
			break;
		case 'V':
			verbose = ISC_TRUE;
			break;
		case 'y':
			keyname = isc_commandline_argument;
			break;
		case '?':
			usage(0);
			break;
		default:
			fatal("unexpected error parsing command arguments: "
			      "got %c\n", ch);
			break;
		}
	}

	argc -= isc_commandline_index;
	argv += isc_commandline_index;

	if (argc < 1)
		usage(1);

	isc_random_get(&serial);

	DO("create memory context", isc_mem_create(0, 0, &mctx));
	DO("create socket manager", isc_socketmgr_create(mctx, &socketmgr));
	DO("create task manager", isc_taskmgr_create(mctx, 1, 0, &taskmgr));
	DO("create task", isc_task_create(taskmgr, 0, &task));

	DO("create logging context", isc_log_create(mctx, &log, &logconfig));
	isc_log_setcontext(log);
	DO("setting log tag", isc_log_settag(logconfig, progname));
	logdest.file.stream = stderr;
	logdest.file.name = NULL;
	logdest.file.versions = ISC_LOG_ROLLNEVER;
	logdest.file.maximum_size = 0;
	DO("creating log channel",
	   isc_log_createchannel(logconfig, "stderr",
		   		 ISC_LOG_TOFILEDESC, ISC_LOG_INFO, &logdest,
				 ISC_LOG_PRINTTAG|ISC_LOG_PRINTLEVEL));
	DO("enabling log channel", isc_log_usechannel(logconfig, "stderr",
						      NULL, NULL));

	parse_config(mctx, log, keyname, &pctx, &config);

	isccc_result_register();

	command = *argv;

	/*
	 * Convert argc/argv into a space-delimited command string
	 * similar to what the user might enter in interactive mode
	 * (if that were implemented).
	 */
	argslen = 0;
	for (i = 0; i < argc; i++)
		argslen += strlen(argv[i]) + 1;

	args = isc_mem_get(mctx, argslen);
	if (args == NULL)
		DO("isc_mem_get", ISC_R_NOMEMORY);

	p = args;
	for (i = 0; i < argc; i++) {
		size_t len = strlen(argv[i]);
		memcpy(p, argv[i], len);
		p += len;
		*p++ = ' ';
	}

	p--;
	*p++ = '\0';
	INSIST(p == args + argslen);

	notify("%s", command);

	if (strcmp(command, "restart") == 0)
		fatal("'%s' is not implemented", command);

	DO("post event", isc_app_onrun(mctx, task, rndc_start, NULL));

	result = isc_app_run();
	if (result != ISC_R_SUCCESS)
		fatal("isc_app_run() failed: %s", isc_result_totext(result));

	if (connects > 0 || sends > 0 || recvs > 0)
		isc_socket_cancel(sock, task, ISC_SOCKCANCEL_ALL);

	isc_task_detach(&task);
	isc_taskmgr_destroy(&taskmgr);
	isc_socketmgr_destroy(&socketmgr);
	isc_log_destroy(&log);
	isc_log_setcontext(NULL);

	cfg_obj_destroy(pctx, &config);
	cfg_parser_destroy(&pctx);

	isc_mem_put(mctx, args, argslen);
	isccc_ccmsg_invalidate(&ccmsg);

	if (show_final_mem)
		isc_mem_stats(mctx, stderr);

	isc_mem_destroy(&mctx);

	if (failed)
		return (1);

	return (0);
}
Example #3
0
int
main(int argc, char **argv) {
	isc_result_t result = ISC_R_SUCCESS;
	isc_boolean_t show_final_mem = ISC_FALSE;
	isc_taskmgr_t *taskmgr = NULL;
	isc_task_t *task = NULL;
	isc_log_t *log = NULL;
	isc_logconfig_t *logconfig = NULL;
	isc_logdestination_t logdest;
	cfg_parser_t *pctx = NULL;
	cfg_obj_t *config = NULL;
	const char *keyname = NULL;
	struct in_addr in;
	struct in6_addr in6;
	char *p;
	size_t argslen;
	int ch;
	int i;

	result = isc_file_progname(*argv, program, sizeof(program));
	if (result != ISC_R_SUCCESS)
		memmove(program, "rndc", 5);
	progname = program;

	admin_conffile = RNDC_CONFFILE;
	admin_keyfile = RNDC_KEYFILE;

	isc_sockaddr_any(&local4);
	isc_sockaddr_any6(&local6);

	result = isc_app_start();
	if (result != ISC_R_SUCCESS)
		fatal("isc_app_start() failed: %s", isc_result_totext(result));

	isc_commandline_errprint = ISC_FALSE;

	while ((ch = isc_commandline_parse(argc, argv, "b:c:hk:Mmp:qrs:Vy:"))
	       != -1) {
		switch (ch) {
		case 'b':
			if (inet_pton(AF_INET, isc_commandline_argument,
				      &in) == 1) {
				isc_sockaddr_fromin(&local4, &in, 0);
				local4set = ISC_TRUE;
			} else if (inet_pton(AF_INET6, isc_commandline_argument,
					     &in6) == 1) {
				isc_sockaddr_fromin6(&local6, &in6, 0);
				local6set = ISC_TRUE;
			}
			break;

		case 'c':
			admin_conffile = isc_commandline_argument;
			c_flag = ISC_TRUE;
			break;

		case 'k':
			admin_keyfile = isc_commandline_argument;
			break;

		case 'M':
			isc_mem_debugging = ISC_MEM_DEBUGTRACE;
			break;

		case 'm':
			show_final_mem = ISC_TRUE;
			break;

		case 'p':
			remoteport = atoi(isc_commandline_argument);
			if (remoteport > 65535 || remoteport == 0)
				fatal("port '%s' out of range",
				      isc_commandline_argument);
			break;

		case 'q':
			quiet = ISC_TRUE;
			break;

		case 'r':
			showresult = ISC_TRUE;
			break;

		case 's':
			servername = isc_commandline_argument;
			break;

		case 'V':
			verbose = ISC_TRUE;
			break;

		case 'y':
			keyname = isc_commandline_argument;
			break;

		case '?':
			if (isc_commandline_option != '?') {
				fprintf(stderr, "%s: invalid argument -%c\n",
					program, isc_commandline_option);
				usage(1);
			}
			/* FALLTHROUGH */
		case 'h':
			usage(0);
			break;
		default:
			fprintf(stderr, "%s: unhandled option -%c\n",
				program, isc_commandline_option);
			exit(1);
		}
	}

	argc -= isc_commandline_index;
	argv += isc_commandline_index;

	if (argc < 1)
		usage(1);

	isc_random_get(&serial);

	DO("create memory context", isc_mem_create(0, 0, &rndc_mctx));
	DO("create socket manager", isc_socketmgr_create(rndc_mctx, &socketmgr));
	DO("create task manager", isc_taskmgr_create(rndc_mctx, 1, 0, &taskmgr));
	DO("create task", isc_task_create(taskmgr, 0, &task));

	DO("create logging context", isc_log_create(rndc_mctx, &log, &logconfig));
	isc_log_setcontext(log);
	DO("setting log tag", isc_log_settag(logconfig, progname));
	logdest.file.stream = stderr;
	logdest.file.name = NULL;
	logdest.file.versions = ISC_LOG_ROLLNEVER;
	logdest.file.maximum_size = 0;
	DO("creating log channel",
	   isc_log_createchannel(logconfig, "stderr",
				 ISC_LOG_TOFILEDESC, ISC_LOG_INFO, &logdest,
				 ISC_LOG_PRINTTAG|ISC_LOG_PRINTLEVEL));
	DO("enabling log channel", isc_log_usechannel(logconfig, "stderr",
						      NULL, NULL));

	parse_config(rndc_mctx, log, keyname, &pctx, &config);

	isccc_result_register();

	command = *argv;

	DO("allocate data buffer",
	   isc_buffer_allocate(rndc_mctx, &databuf, 2048));

	/*
	 * Convert argc/argv into a space-delimited command string
	 * similar to what the user might enter in interactive mode
	 * (if that were implemented).
	 */
	argslen = 0;
	for (i = 0; i < argc; i++)
		argslen += strlen(argv[i]) + 1;

	args = isc_mem_get(rndc_mctx, argslen);
	if (args == NULL)
		DO("isc_mem_get", ISC_R_NOMEMORY);

	p = args;
	for (i = 0; i < argc; i++) {
		size_t len = strlen(argv[i]);
		memmove(p, argv[i], len);
		p += len;
		*p++ = ' ';
	}

	p--;
	*p++ = '\0';
	INSIST(p == args + argslen);

	notify("%s", command);

	if (strcmp(command, "restart") == 0)
		fatal("'%s' is not implemented", command);

	if (nserveraddrs == 0)
		get_addresses(servername, (in_port_t) remoteport);

	DO("post event", isc_app_onrun(rndc_mctx, task, rndc_start, NULL));

	result = isc_app_run();
	if (result != ISC_R_SUCCESS)
		fatal("isc_app_run() failed: %s", isc_result_totext(result));

	if (connects > 0 || sends > 0 || recvs > 0)
		isc_socket_cancel(sock, task, ISC_SOCKCANCEL_ALL);

	isc_task_detach(&task);
	isc_taskmgr_destroy(&taskmgr);
	isc_socketmgr_destroy(&socketmgr);
	isc_log_destroy(&log);
	isc_log_setcontext(NULL);

	cfg_obj_destroy(pctx, &config);
	cfg_parser_destroy(&pctx);

	isc_mem_put(rndc_mctx, args, argslen);
	isccc_ccmsg_invalidate(&ccmsg);

	dns_name_destroy();

	isc_buffer_free(&databuf);

	if (show_final_mem)
		isc_mem_stats(rndc_mctx, stderr);

	isc_mem_destroy(&rndc_mctx);

	if (failed)
		return (1);

	return (0);
}
int
main(int argc, char **argv) {
	isc_boolean_t show_final_mem = ISC_FALSE;
	isc_buffer_t key_txtbuffer;
	char key_txtsecret[256];
	isc_mem_t *mctx = NULL;
	isc_result_t result = ISC_R_SUCCESS;
	const char *keyname = NULL;
	const char *randomfile = NULL;
	const char *serveraddr = NULL;
	dns_secalg_t alg = DST_ALG_HMACMD5;
	const char *algname = alg_totext(alg);
	char *p;
	int ch;
	int port;
	int keysize;
	struct in_addr addr4_dummy;
	struct in6_addr addr6_dummy;
	char *chrootdir = NULL;
	char *user = NULL;
	isc_boolean_t keyonly = ISC_FALSE;
	int len;

	keydef = keyfile = RNDC_KEYFILE;

	result = isc_file_progname(*argv, program, sizeof(program));
	if (result != ISC_R_SUCCESS)
		memmove(program, "rndc-confgen", 13);
	progname = program;

	keyname = DEFAULT_KEYNAME;
	keysize = DEFAULT_KEYLENGTH;
	serveraddr = DEFAULT_SERVER;
	port = DEFAULT_PORT;

	isc_commandline_errprint = ISC_FALSE;

	while ((ch = isc_commandline_parse(argc, argv,
					   "ab:c:hk:Mmp:r:s:t:u:Vy")) != -1) {
		switch (ch) {
		case 'a':
			keyonly = ISC_TRUE;
			break;
		case 'b':
			keysize = strtol(isc_commandline_argument, &p, 10);
			if (*p != '\0' || keysize < 0)
				fatal("-b requires a non-negative number");
			break;
		case 'c':
			keyfile = isc_commandline_argument;
			break;
		case 'h':
			usage(0);
		case 'k':
		case 'y':	/* Compatible with rndc -y. */
			keyname = isc_commandline_argument;
			break;
		case 'M':
			isc_mem_debugging = ISC_MEM_DEBUGTRACE;
			break;

		case 'm':
			show_final_mem = ISC_TRUE;
			break;
		case 'p':
			port = strtol(isc_commandline_argument, &p, 10);
			if (*p != '\0' || port < 0 || port > 65535)
				fatal("port '%s' out of range",
				      isc_commandline_argument);
			break;
		case 'r':
			randomfile = isc_commandline_argument;
			break;
		case 's':
			serveraddr = isc_commandline_argument;
			if (inet_pton(AF_INET, serveraddr, &addr4_dummy) != 1 &&
			    inet_pton(AF_INET6, serveraddr, &addr6_dummy) != 1)
				fatal("-s should be an IPv4 or IPv6 address");
			break;
		case 't':
			chrootdir = isc_commandline_argument;
			break;
		case 'u':
			user = isc_commandline_argument;
			break;
		case 'V':
			verbose = ISC_TRUE;
			break;
		case '?':
			if (isc_commandline_option != '?') {
				fprintf(stderr, "%s: invalid argument -%c\n",
					program, isc_commandline_option);
				usage(1);
			} else
				usage(0);
			break;
		default:
			fprintf(stderr, "%s: unhandled option -%c\n",
				program, isc_commandline_option);
			exit(1);
		}
	}

	argc -= isc_commandline_index;
	argv += isc_commandline_index;
	POST(argv);

	if (argc > 0)
		usage(1);

	DO("create memory context", isc_mem_create(0, 0, &mctx));
	isc_buffer_init(&key_txtbuffer, &key_txtsecret, sizeof(key_txtsecret));

	generate_key(mctx, randomfile, alg, keysize, &key_txtbuffer);

	if (keyonly) {
		write_key_file(keyfile, chrootdir == NULL ? user : NULL,
			       keyname, &key_txtbuffer, alg);

		if (chrootdir != NULL) {
			char *buf;
			len = strlen(chrootdir) + strlen(keyfile) + 2;
			buf = isc_mem_get(mctx, len);
			if (buf == NULL)
				fatal("isc_mem_get(%d) failed\n", len);
			snprintf(buf, len, "%s%s%s", chrootdir,
				 (*keyfile != '/') ? "/" : "", keyfile);

			write_key_file(buf, user, keyname, &key_txtbuffer, alg);
			isc_mem_put(mctx, buf, len);
		}
	} else {
		printf("\
# Start of rndc.conf\n\
key \"%s\" {\n\
	algorithm %s;\n\
	secret \"%.*s\";\n\
};\n\
\n\
options {\n\
	default-key \"%s\";\n\
	default-server %s;\n\
	default-port %d;\n\
};\n\
# End of rndc.conf\n\
\n\
# Use with the following in named.conf, adjusting the allow list as needed:\n\
# key \"%s\" {\n\
# 	algorithm %s;\n\
# 	secret \"%.*s\";\n\
# };\n\
# \n\
# controls {\n\
# 	inet %s port %d\n\
# 		allow { %s; } keys { \"%s\"; };\n\
# };\n\
# End of named.conf\n",
		       keyname, algname,
		       (int)isc_buffer_usedlength(&key_txtbuffer),
		       (char *)isc_buffer_base(&key_txtbuffer),
		       keyname, serveraddr, port,
		       keyname, algname,
		       (int)isc_buffer_usedlength(&key_txtbuffer),
		       (char *)isc_buffer_base(&key_txtbuffer),
		       serveraddr, port, serveraddr, keyname);
	}

	if (show_final_mem)
		isc_mem_stats(mctx, stderr);

	isc_mem_destroy(&mctx);

	return (0);
}
int
main(int argc, char **argv) {
	isc_boolean_t show_final_mem = ISC_FALSE;
	isc_buffer_t key_rawbuffer;
	isc_buffer_t key_txtbuffer;
	isc_region_t key_rawregion;
	isc_mem_t *mctx = NULL;
	isc_entropy_t *ectx = NULL;
	isc_entropysource_t *entropy_source = NULL;
	isc_result_t result = ISC_R_SUCCESS;
	dst_key_t *key = NULL;
	const char *keyname = NULL;
	const char *randomfile = NULL;
	const char *serveraddr = NULL;
	char key_rawsecret[64];
	char key_txtsecret[256];
	char *p;
	int ch;
	int port;
	int keysize;
	int entropy_flags = 0;
	int open_keyboard = ISC_ENTROPY_KEYBOARDMAYBE;
	struct in_addr addr4_dummy;
	struct in6_addr addr6_dummy;
	char *chrootdir = NULL;
	char *user = NULL;
	isc_boolean_t keyonly = ISC_FALSE;
	int len;

 	keydef = keyfile = RNDC_KEYFILE;

	result = isc_file_progname(*argv, program, sizeof(program));
	if (result != ISC_R_SUCCESS)
		memcpy(program, "rndc-confgen", 13);
	progname = program;

	keyname = DEFAULT_KEYNAME;
	keysize = DEFAULT_KEYLENGTH;
	serveraddr = DEFAULT_SERVER;
	port = DEFAULT_PORT;

	while ((ch = isc_commandline_parse(argc, argv,
					   "ab:c:hk:Mmp:r:s:t:u:Vy")) != -1) {
		switch (ch) {
		case 'a':
			keyonly = ISC_TRUE;
			break;
		case 'b':
			keysize = strtol(isc_commandline_argument, &p, 10);
			if (*p != '\0' || keysize < 0)
				fatal("-b requires a non-negative number");
			if (keysize < 1 || keysize > 512)
				fatal("-b must be in the range 1 through 512");
			break;
		case 'c':
			keyfile = isc_commandline_argument;
			break;
		case 'h':
			usage(0);
		case 'k':
		case 'y':	/* Compatible with rndc -y. */
			keyname = isc_commandline_argument;
			break;
		case 'M':
			isc_mem_debugging = ISC_MEM_DEBUGTRACE;
			break;

		case 'm':
			show_final_mem = ISC_TRUE;
			break;
		case 'p':
			port = strtol(isc_commandline_argument, &p, 10);
			if (*p != '\0' || port < 0 || port > 65535)
				fatal("port '%s' out of range",
				      isc_commandline_argument);
			break;
		case 'r':
			randomfile = isc_commandline_argument;
			break;
		case 's':
			serveraddr = isc_commandline_argument;
			if (inet_pton(AF_INET, serveraddr, &addr4_dummy) != 1 &&
			    inet_pton(AF_INET6, serveraddr, &addr6_dummy) != 1)
				fatal("-s should be an IPv4 or IPv6 address");
			break;
		case 't':
			chrootdir = isc_commandline_argument;
			break;
		case 'u':
			user = isc_commandline_argument;
			break;
		case 'V':
			verbose = ISC_TRUE;
			break;
		case '?':
			usage(1);
			break;
		default:
			fatal("unexpected error parsing command arguments: "
			      "got %c\n", ch);
			break;
		}
	}

	argc -= isc_commandline_index;
	argv += isc_commandline_index;

	if (argc > 0)
		usage(1);

	DO("create memory context", isc_mem_create(0, 0, &mctx));

	DO("create entropy context", isc_entropy_create(mctx, &ectx));

	if (randomfile != NULL && strcmp(randomfile, "keyboard") == 0) {
		randomfile = NULL;
		open_keyboard = ISC_ENTROPY_KEYBOARDYES;
	}
	DO("start entropy source", isc_entropy_usebestsource(ectx,
							     &entropy_source,
							     randomfile,
							     open_keyboard));

	entropy_flags = ISC_ENTROPY_BLOCKING | ISC_ENTROPY_GOODONLY;

	DO("initialize dst library", dst_lib_init(mctx, ectx, entropy_flags));

	DO("generate key", dst_key_generate(dns_rootname, DST_ALG_HMACMD5,
					    keysize, 0, 0,
					    DNS_KEYPROTO_ANY,
					    dns_rdataclass_in, mctx, &key));

	isc_buffer_init(&key_rawbuffer, &key_rawsecret, sizeof(key_rawsecret));

	DO("dump key to buffer", dst_key_tobuffer(key, &key_rawbuffer));

	isc_buffer_init(&key_txtbuffer, &key_txtsecret, sizeof(key_txtsecret));
	isc_buffer_usedregion(&key_rawbuffer, &key_rawregion);

	DO("bsse64 encode secret", isc_base64_totext(&key_rawregion, -1, "",
						     &key_txtbuffer));

	/*
	 * Shut down the entropy source now so the "stop typing" message
	 * does not muck with the output.
	 */
	if (entropy_source != NULL)
		isc_entropy_destroysource(&entropy_source);

	if (key != NULL)
		dst_key_free(&key);

	isc_entropy_detach(&ectx);
	dst_lib_destroy();

	if (keyonly) {
		write_key_file(keyfile, chrootdir == NULL ? user : NULL,
			       keyname, &key_txtbuffer);

		if (chrootdir != NULL) {
			char *buf;
			len = strlen(chrootdir) + strlen(keyfile) + 2;
			buf = isc_mem_get(mctx, len);
			if (buf == NULL)
				fatal("isc_mem_get(%d) failed\n", len);
			snprintf(buf, len, "%s%s%s", chrootdir,
				 (*keyfile != '/') ? "/" : "", keyfile);
			
			write_key_file(buf, user, keyname, &key_txtbuffer);
			isc_mem_put(mctx, buf, len);
		}
	} else {
		printf("\
# Start of rndc.conf\n\
key \"%s\" {\n\
	algorithm hmac-md5;\n\
	secret \"%.*s\";\n\
};\n\
\n\
options {\n\
	default-key \"%s\";\n\
	default-server %s;\n\
	default-port %d;\n\
};\n\
# End of rndc.conf\n\
\n\
# Use with the following in named.conf, adjusting the allow list as needed:\n\
# key \"%s\" {\n\
# 	algorithm hmac-md5;\n\
# 	secret \"%.*s\";\n\
# };\n\
# \n\
# controls {\n\
# 	inet %s port %d\n\
# 		allow { %s; } keys { \"%s\"; };\n\
# };\n\
# End of named.conf\n",
		       keyname,
		       (int)isc_buffer_usedlength(&key_txtbuffer),
		       (char *)isc_buffer_base(&key_txtbuffer),
		       keyname, serveraddr, port,
		       keyname,
		       (int)isc_buffer_usedlength(&key_txtbuffer),
		       (char *)isc_buffer_base(&key_txtbuffer),
		       serveraddr, port, serveraddr, keyname);
	}

	if (show_final_mem)
		isc_mem_stats(mctx, stderr);

	isc_mem_destroy(&mctx);

	return (0);
}