Adding upstream version 1:9.16.44.upstream/1%9.16.44

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2728 insertions, 0 deletions

diff --git a/bin/dig/dig.c b/bin/dig/dig.c
new file mode 100644
index 0000000..423bf7d
--- /dev/null
+++ b/bin/dig/dig.c
@@ -0,0 +1,2728 @@
+/*
+ * 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 <ctype.h>
+#include <inttypes.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <time.h>
+
+#include <isc/app.h>
+#include <isc/netaddr.h>
+#include <isc/parseint.h>
+#include <isc/platform.h>
+#include <isc/print.h>
+#include <isc/string.h>
+#include <isc/task.h>
+#include <isc/util.h>
+
+#include <pk11/site.h>
+
+#include <dns/byaddr.h>
+#include <dns/fixedname.h>
+#include <dns/masterdump.h>
+#include <dns/message.h>
+#include <dns/name.h>
+#include <dns/rcode.h>
+#include <dns/rdata.h>
+#include <dns/rdataclass.h>
+#include <dns/rdataset.h>
+#include <dns/rdatatype.h>
+#include <dns/result.h>
+#include <dns/tsig.h>
+
+#include <dig/dig.h>
+
+#define ADD_STRING(b, s)                                          \
+	{                                                         \
+		if (strlen(s) >= isc_buffer_availablelength(b)) { \
+			return (ISC_R_NOSPACE);                   \
+		} else {                                          \
+			isc_buffer_putstr(b, s);                  \
+		}                                                 \
+	}
+
+#define DIG_MAX_ADDRESSES 20
+
+dig_lookup_t *default_lookup = NULL;
+
+static atomic_uintptr_t batchname = 0;
+static FILE *batchfp = NULL;
+static char *argv0;
+static int addresscount = 0;
+
+static char domainopt[DNS_NAME_MAXTEXT];
+static char hexcookie[81];
+
+static bool short_form = false, printcmd = true, plusquest = false,
+	    pluscomm = false, ipv4only = false, ipv6only = false, digrc = true;
+static uint32_t splitwidth = 0xffffffff;
+
+/*% opcode text */
+static const char *const opcodetext[] = {
+	"QUERY",      "IQUERY",	    "STATUS",	  "RESERVED3",
+	"NOTIFY",     "UPDATE",	    "RESERVED6",  "RESERVED7",
+	"RESERVED8",  "RESERVED9",  "RESERVED10", "RESERVED11",
+	"RESERVED12", "RESERVED13", "RESERVED14", "RESERVED15"
+};
+
+static const char *
+rcode_totext(dns_rcode_t rcode) {
+	static char buf[64];
+	isc_buffer_t b;
+	isc_result_t result;
+
+	memset(buf, 0, sizeof(buf));
+	isc_buffer_init(&b, buf + 1, sizeof(buf) - 2);
+	result = dns_rcode_totext(rcode, &b);
+	RUNTIME_CHECK(result == ISC_R_SUCCESS);
+	if (strspn(buf + 1, "0123456789") == strlen(buf + 1)) {
+		buf[0] = '?';
+		return (buf);
+	}
+	return (buf + 1);
+}
+
+/*% print usage */
+static void
+print_usage(FILE *fp) {
+	fputs("Usage:  dig [@global-server] [domain] [q-type] [q-class] "
+	      "{q-opt}\n"
+	      "            {global-d-opt} host [@local-server] {local-d-opt}\n"
+	      "            [ host [@local-server] {local-d-opt} [...]]\n",
+	      fp);
+}
+
+#if TARGET_OS_IPHONE
+static void
+usage(void) {
+	fprintf(stderr, "Press <Help> for complete list of options\n");
+}
+#else  /* if TARGET_OS_IPHONE */
+ISC_PLATFORM_NORETURN_PRE static void
+usage(void) ISC_PLATFORM_NORETURN_POST;
+
+static void
+usage(void) {
+	print_usage(stderr);
+	fputs("\nUse \"dig -h\" (or \"dig -h | more\") "
+	      "for complete list of options\n",
+	      stderr);
+	exit(1);
+}
+#endif /* if TARGET_OS_IPHONE */
+
+/*% version */
+static void
+version(void) {
+	fputs("DiG " VERSION "\n", stderr);
+}
+
+/*% help */
+static void
+help(void) {
+	print_usage(stdout);
+	fputs("Where:  domain	  is in the Domain Name System\n"
+	      "        q-class  is one of (in,hs,ch,...) [default: in]\n"
+	      "        q-type   is one of (a,any,mx,ns,soa,hinfo,axfr,txt,...) "
+	      "[default:a]\n"
+	      "                 (Use ixfr=version for type ixfr)\n"
+	      "        q-opt    is one of:\n"
+	      "                 -4                  (use IPv4 query transport "
+	      "only)\n"
+	      "                 -6                  (use IPv6 query transport "
+	      "only)\n"
+	      "                 -b address[#port]   (bind to source "
+	      "address/port)\n"
+	      "                 -c class            (specify query class)\n"
+	      "                 -f filename         (batch mode)\n"
+	      "                 -k keyfile          (specify tsig key file)\n"
+	      "                 -m                  (enable memory usage "
+	      "debugging)\n"
+	      "                 -p port             (specify port number)\n"
+	      "                 -q name             (specify query name)\n"
+	      "                 -r                  (do not read ~/.digrc)\n"
+	      "                 -t type             (specify query type)\n"
+	      "                 -u                  (display times in usec "
+	      "instead of msec)\n"
+	      "                 -x dot-notation     (shortcut for reverse "
+	      "lookups)\n"
+	      "                 -y [hmac:]name:key  (specify named base64 tsig "
+	      "key)\n"
+	      "        d-opt    is of the form +keyword[=value], where keyword "
+	      "is:\n"
+	      "                 +[no]aaflag         (Set AA flag in query "
+	      "(+[no]aaflag))\n"
+	      "                 +[no]aaonly         (Set AA flag in query "
+	      "(+[no]aaflag))\n"
+	      "                 +[no]additional     (Control display of "
+	      "additional section)\n"
+	      "                 +[no]adflag         (Set AD flag in query "
+	      "(default on))\n"
+	      "                 +[no]all            (Set or clear all display "
+	      "flags)\n"
+	      "                 +[no]answer         (Control display of answer "
+	      "section)\n"
+	      "                 +[no]authority      (Control display of "
+	      "authority section)\n"
+	      "                 +[no]badcookie      (Retry BADCOOKIE "
+	      "responses)\n"
+	      "                 +[no]besteffort     (Try to parse even illegal "
+	      "messages)\n"
+	      "                 +bufsize[=###]      (Set EDNS0 Max UDP packet "
+	      "size)\n"
+	      "                 +[no]cdflag         (Set checking disabled "
+	      "flag in query)\n"
+	      "                 +[no]class          (Control display of class "
+	      "in records)\n"
+	      "                 +[no]cmd            (Control display of "
+	      "command line -\n"
+	      "                                      global option)\n"
+	      "                 +[no]comments       (Control display of packet "
+	      "header\n"
+	      "                                      and section name "
+	      "comments)\n"
+	      "                 +[no]cookie         (Add a COOKIE option to "
+	      "the request)\n"
+	      "                 +[no]crypto         (Control display of "
+	      "cryptographic\n"
+	      "                                      fields in records)\n"
+	      "                 +[no]defname        (Use search list "
+	      "(+[no]search))\n"
+	      "                 +[no]dnssec         (Request DNSSEC records)\n"
+	      "                 +domain=###         (Set default domainname)\n"
+	      "                 +[no]dscp[=###]     (Set the DSCP value to ### "
+	      "[0..63])\n"
+	      "                 +[no]edns[=###]     (Set EDNS version) [0]\n"
+	      "                 +ednsflags=###      (Set EDNS flag bits)\n"
+	      "                 +[no]ednsnegotiation (Set EDNS version "
+	      "negotiation)\n"
+	      "                 +ednsopt=###[:value] (Send specified EDNS "
+	      "option)\n"
+	      "                 +noednsopt          (Clear list of +ednsopt "
+	      "options)\n"
+	      "                 +[no]expandaaaa     (Expand AAAA records)\n"
+	      "                 +[no]expire         (Request time to expire)\n"
+	      "                 +[no]fail           (Don't try next server on "
+	      "SERVFAIL)\n"
+	      "                 +[no]header-only    (Send query without a "
+	      "question section)\n"
+	      "                 +[no]identify       (ID responders in short "
+	      "answers)\n"
+#ifdef HAVE_LIBIDN2
+	      "                 +[no]idnin          (Parse IDN names "
+	      "[default=on on tty])\n"
+	      "                 +[no]idnout         (Convert IDN response "
+	      "[default=on on tty])\n"
+#endif /* ifdef HAVE_LIBIDN2 */
+	      "                 +[no]ignore         (Don't revert to TCP for "
+	      "TC responses.)\n"
+	      "                 +[no]keepalive      (Request EDNS TCP "
+	      "keepalive)\n"
+	      "                 +[no]keepopen       (Keep the TCP socket open "
+	      "between "
+	      "queries)\n"
+	      "                 +[no]mapped         (Allow mapped IPv4 over "
+	      "IPv6)\n"
+	      "                 +[no]multiline      (Print records in an "
+	      "expanded format)\n"
+	      "                 +ndots=###          (Set search NDOTS value)\n"
+	      "                 +[no]nsid           (Request Name Server ID)\n"
+	      "                 +[no]nssearch       (Search all authoritative "
+	      "nameservers)\n"
+	      "                 +[no]onesoa         (AXFR prints only one soa "
+	      "record)\n"
+	      "                 +[no]opcode=###     (Set the opcode of the "
+	      "request)\n"
+	      "                 +padding=###        (Set padding block size "
+	      "[0])\n"
+	      "                 +[no]qr             (Print question before "
+	      "sending)\n"
+	      "                 +[no]question       (Control display of "
+	      "question section)\n"
+	      "                 +[no]raflag         (Set RA flag in query "
+	      "(+[no]raflag))\n"
+	      "                 +[no]rdflag         (Recursive mode "
+	      "(+[no]recurse))\n"
+	      "                 +[no]recurse        (Recursive mode "
+	      "(+[no]rdflag))\n"
+	      "                 +retry=###          (Set number of UDP "
+	      "retries) [2]\n"
+	      "                 +[no]rrcomments     (Control display of "
+	      "per-record "
+	      "comments)\n"
+	      "                 +[no]search         (Set whether to use "
+	      "searchlist)\n"
+	      "                 +[no]short          (Display nothing except "
+	      "short\n"
+	      "                                      form of answers - global "
+	      "option)\n"
+	      "                 +[no]showsearch     (Search with intermediate "
+	      "results)\n"
+	      "                 +[no]split=##       (Split hex/base64 fields "
+	      "into chunks)\n"
+	      "                 +[no]stats          (Control display of "
+	      "statistics)\n"
+	      "                 +subnet=addr        (Set edns-client-subnet "
+	      "option)\n"
+	      "                 +[no]tcflag         (Set TC flag in query "
+	      "(+[no]tcflag))\n"
+	      "                 +[no]tcp            (TCP mode (+[no]vc))\n"
+	      "                 +timeout=###        (Set query timeout) [5]\n"
+	      "                 +[no]trace          (Trace delegation down "
+	      "from root "
+	      "[+dnssec])\n"
+	      "                 +tries=###          (Set number of UDP "
+	      "attempts) [3]\n"
+	      "                 +[no]ttlid          (Control display of ttls "
+	      "in records)\n"
+	      "                 +[no]ttlunits       (Display TTLs in "
+	      "human-readable units)\n"
+	      "                 +[no]unexpected     (Print replies from "
+	      "unexpected sources\n"
+	      "                                      default=off)\n"
+	      "                 +[no]unknownformat  (Print RDATA in RFC 3597 "
+	      "\"unknown\" "
+	      "format)\n"
+	      "                 +[no]vc             (TCP mode (+[no]tcp))\n"
+	      "                 +[no]yaml           (Present the results as "
+	      "YAML)\n"
+	      "                 +[no]zflag          (Set Z flag in query)\n"
+	      "        global d-opts and servers (before host name) affect all "
+	      "queries.\n"
+	      "        local d-opts and servers (after host name) affect only "
+	      "that lookup.\n"
+	      "        -h                           (print help and exit)\n"
+	      "        -v                           (print version and exit)\n",
+	      stdout);
+}
+
+/*%
+ * Callback from dighost.c to print the received message.
+ */
+static void
+received(unsigned int bytes, isc_sockaddr_t *from, dig_query_t *query) {
+	uint64_t diff;
+	time_t tnow;
+	struct tm tmnow;
+#ifdef WIN32
+	wchar_t time_str[100];
+#else  /* ifdef WIN32 */
+	char time_str[100];
+#endif /* ifdef WIN32 */
+	char fromtext[ISC_SOCKADDR_FORMATSIZE];
+
+	isc_sockaddr_format(from, fromtext, sizeof(fromtext));
+
+	if (short_form || yaml) {
+		return;
+	}
+
+	if (query->lookup->stats) {
+		diff = isc_time_microdiff(&query->time_recv, &query->time_sent);
+		if (query->lookup->use_usec) {
+			printf(";; Query time: %ld usec\n", (long)diff);
+		} else {
+			printf(";; Query time: %ld msec\n", (long)diff / 1000);
+		}
+		printf(";; SERVER: %s(%s)\n", fromtext, query->servname);
+		time(&tnow);
+		(void)localtime_r(&tnow, &tmnow);
+
+#ifdef WIN32
+		/*
+		 * On Windows, time zone name ("%Z") may be a localized
+		 * wide-character string, which strftime() handles incorrectly.
+		 */
+		if (wcsftime(time_str, sizeof(time_str) / sizeof(time_str[0]),
+			     L"%a %b %d %H:%M:%S %Z %Y", &tmnow) > 0U)
+		{
+			printf(";; WHEN: %ls\n", time_str);
+		}
+#else  /* ifdef WIN32 */
+		if (strftime(time_str, sizeof(time_str),
+			     "%a %b %d %H:%M:%S %Z %Y", &tmnow) > 0U)
+		{
+			printf(";; WHEN: %s\n", time_str);
+		}
+#endif /* ifdef WIN32 */
+		if (query->lookup->doing_xfr) {
+			printf(";; XFR size: %u records (messages %u, "
+			       "bytes %" PRIu64 ")\n",
+			       query->rr_count, query->msg_count,
+			       query->byte_count);
+		} else {
+			printf(";; MSG SIZE  rcvd: %u\n", bytes);
+		}
+		if (tsigkey != NULL) {
+			if (!validated) {
+				puts(";; WARNING -- Some TSIG could not "
+				     "be validated");
+			}
+		}
+		if ((tsigkey == NULL) && (keysecret[0] != 0)) {
+			puts(";; WARNING -- TSIG key was not used.");
+		}
+		puts("");
+	} else if (query->lookup->identify) {
+		diff = isc_time_microdiff(&query->time_recv, &query->time_sent);
+		if (query->lookup->use_usec) {
+			printf(";; Received %" PRIu64 " bytes "
+			       "from %s(%s) in %ld us\n\n",
+			       query->lookup->doing_xfr ? query->byte_count
+							: (uint64_t)bytes,
+			       fromtext, query->userarg, (long)diff);
+		} else {
+			printf(";; Received %" PRIu64 " bytes "
+			       "from %s(%s) in %ld ms\n\n",
+			       query->lookup->doing_xfr ? query->byte_count
+							: (uint64_t)bytes,
+			       fromtext, query->userarg, (long)diff / 1000);
+		}
+	}
+}
+
+/*
+ * Callback from dighost.c to print that it is trying a server.
+ * Not used in dig.
+ * XXX print_trying
+ */
+static void
+trying(char *frm, dig_lookup_t *lookup) {
+	UNUSED(frm);
+	UNUSED(lookup);
+}
+
+/*%
+ * Internal print routine used to print short form replies.
+ */
+static isc_result_t
+say_message(dns_rdata_t *rdata, dig_query_t *query, isc_buffer_t *buf) {
+	isc_result_t result;
+	uint64_t diff;
+	char store[sizeof(" in 18446744073709551616 us.")];
+	unsigned int styleflags = 0;
+
+	if (query->lookup->trace || query->lookup->ns_search_only) {
+		result = dns_rdatatype_totext(rdata->type, buf);
+		if (result != ISC_R_SUCCESS) {
+			return (result);
+		}
+		ADD_STRING(buf, " ");
+	}
+
+	/* Turn on rrcomments if explicitly enabled */
+	if (query->lookup->rrcomments > 0) {
+		styleflags |= DNS_STYLEFLAG_RRCOMMENT;
+	}
+	if (query->lookup->nocrypto) {
+		styleflags |= DNS_STYLEFLAG_NOCRYPTO;
+	}
+	if (query->lookup->print_unknown_format) {
+		styleflags |= DNS_STYLEFLAG_UNKNOWNFORMAT;
+	}
+	if (query->lookup->expandaaaa) {
+		styleflags |= DNS_STYLEFLAG_EXPANDAAAA;
+	}
+	result = dns_rdata_tofmttext(rdata, NULL, styleflags, 0, splitwidth,
+				     " ", buf);
+	if (result == ISC_R_NOSPACE) {
+		return (result);
+	}
+	check_result(result, "dns_rdata_totext");
+	if (query->lookup->identify) {
+		diff = isc_time_microdiff(&query->time_recv, &query->time_sent);
+		ADD_STRING(buf, " from server ");
+		ADD_STRING(buf, query->servname);
+		if (query->lookup->use_usec) {
+			snprintf(store, sizeof(store), " in %" PRIu64 " us.",
+				 diff);
+		} else {
+			snprintf(store, sizeof(store), " in %" PRIu64 " ms.",
+				 diff / 1000);
+		}
+		ADD_STRING(buf, store);
+	}
+	ADD_STRING(buf, "\n");
+	return (ISC_R_SUCCESS);
+}
+
+/*%
+ * short_form message print handler.  Calls above say_message()
+ */
+static isc_result_t
+short_answer(dns_message_t *msg, dns_messagetextflag_t flags, isc_buffer_t *buf,
+	     dig_query_t *query) {
+	dns_name_t *name;
+	dns_rdataset_t *rdataset;
+	isc_result_t result, loopresult;
+	dns_name_t empty_name;
+	dns_rdata_t rdata = DNS_RDATA_INIT;
+
+	UNUSED(flags);
+
+	dns_name_init(&empty_name, NULL);
+	result = dns_message_firstname(msg, DNS_SECTION_ANSWER);
+	if (result == ISC_R_NOMORE) {
+		return (ISC_R_SUCCESS);
+	} else if (result != ISC_R_SUCCESS) {
+		return (result);
+	}
+
+	for (;;) {
+		name = NULL;
+		dns_message_currentname(msg, DNS_SECTION_ANSWER, &name);
+
+		for (rdataset = ISC_LIST_HEAD(name->list); rdataset != NULL;
+		     rdataset = ISC_LIST_NEXT(rdataset, link))
+		{
+			loopresult = dns_rdataset_first(rdataset);
+			while (loopresult == ISC_R_SUCCESS) {
+				dns_rdataset_current(rdataset, &rdata);
+				result = say_message(&rdata, query, buf);
+				if (result == ISC_R_NOSPACE) {
+					return (result);
+				}
+				check_result(result, "say_message");
+				loopresult = dns_rdataset_next(rdataset);
+				dns_rdata_reset(&rdata);
+			}
+		}
+		result = dns_message_nextname(msg, DNS_SECTION_ANSWER);
+		if (result == ISC_R_NOMORE) {
+			break;
+		} else if (result != ISC_R_SUCCESS) {
+			return (result);
+		}
+	}
+
+	return (ISC_R_SUCCESS);
+}
+
+static bool
+isdotlocal(dns_message_t *msg) {
+	isc_result_t result;
+	static unsigned char local_ndata[] = { "\005local" };
+	static unsigned char local_offsets[] = { 0, 6 };
+	static dns_name_t local = DNS_NAME_INITABSOLUTE(local_ndata,
+							local_offsets);
+
+	for (result = dns_message_firstname(msg, DNS_SECTION_QUESTION);
+	     result == ISC_R_SUCCESS;
+	     result = dns_message_nextname(msg, DNS_SECTION_QUESTION))
+	{
+		dns_name_t *name = NULL;
+		dns_message_currentname(msg, DNS_SECTION_QUESTION, &name);
+		if (dns_name_issubdomain(name, &local)) {
+			return (true);
+		}
+	}
+	return (false);
+}
+
+/*
+ * Callback from dighost.c to print the reply from a server
+ */
+static isc_result_t
+printmessage(dig_query_t *query, const isc_buffer_t *msgbuf, dns_message_t *msg,
+	     bool headers) {
+	isc_result_t result;
+	dns_messagetextflag_t flags;
+	isc_buffer_t *buf = NULL;
+	unsigned int len = OUTPUTBUF;
+	dns_master_style_t *style = NULL;
+	unsigned int styleflags = 0;
+	bool isquery = (msg == query->lookup->sendmsg);
+
+	UNUSED(msgbuf);
+
+	styleflags |= DNS_STYLEFLAG_REL_OWNER;
+	if (yaml) {
+		msg->indent.string = "  ";
+		msg->indent.count = 3;
+		styleflags |= DNS_STYLEFLAG_YAML;
+	} else {
+		if (query->lookup->comments) {
+			styleflags |= DNS_STYLEFLAG_COMMENT;
+		}
+		if (query->lookup->print_unknown_format) {
+			styleflags |= DNS_STYLEFLAG_UNKNOWNFORMAT;
+		}
+		/* Turn on rrcomments if explicitly enabled */
+		if (query->lookup->rrcomments > 0) {
+			styleflags |= DNS_STYLEFLAG_RRCOMMENT;
+		}
+		if (query->lookup->ttlunits) {
+			styleflags |= DNS_STYLEFLAG_TTL_UNITS;
+		}
+		if (query->lookup->nottl) {
+			styleflags |= DNS_STYLEFLAG_NO_TTL;
+		}
+		if (query->lookup->noclass) {
+			styleflags |= DNS_STYLEFLAG_NO_CLASS;
+		}
+		if (query->lookup->nocrypto) {
+			styleflags |= DNS_STYLEFLAG_NOCRYPTO;
+		}
+		if (query->lookup->expandaaaa) {
+			styleflags |= DNS_STYLEFLAG_EXPANDAAAA;
+		}
+		if (query->lookup->multiline) {
+			styleflags |= DNS_STYLEFLAG_OMIT_OWNER;
+			styleflags |= DNS_STYLEFLAG_OMIT_CLASS;
+			styleflags |= DNS_STYLEFLAG_REL_DATA;
+			styleflags |= DNS_STYLEFLAG_OMIT_TTL;
+			styleflags |= DNS_STYLEFLAG_TTL;
+			styleflags |= DNS_STYLEFLAG_MULTILINE;
+			/* Turn on rrcomments unless explicitly disabled */
+			if (query->lookup->rrcomments >= 0) {
+				styleflags |= DNS_STYLEFLAG_RRCOMMENT;
+			}
+		}
+	}
+	if (query->lookup->multiline ||
+	    (query->lookup->nottl && query->lookup->noclass))
+	{
+		result = dns_master_stylecreate(&style, styleflags, 24, 24, 24,
+						32, 80, 8, splitwidth, mctx);
+	} else if (query->lookup->nottl || query->lookup->noclass) {
+		result = dns_master_stylecreate(&style, styleflags, 24, 24, 32,
+						40, 80, 8, splitwidth, mctx);
+	} else {
+		result = dns_master_stylecreate(&style, styleflags, 24, 32, 40,
+						48, 80, 8, splitwidth, mctx);
+	}
+	check_result(result, "dns_master_stylecreate");
+
+	if (query->lookup->cmdline[0] != 0) {
+		if (!short_form && printcmd) {
+			fputs(query->lookup->cmdline, stdout);
+		}
+		query->lookup->cmdline[0] = '\0';
+	}
+	debug("printmessage(%s %s %s)", headers ? "headers" : "noheaders",
+	      query->lookup->comments ? "comments" : "nocomments",
+	      short_form ? "short_form" : "long_form");
+
+	flags = 0;
+	if (!headers) {
+		flags |= DNS_MESSAGETEXTFLAG_NOHEADERS;
+		flags |= DNS_MESSAGETEXTFLAG_NOCOMMENTS;
+	}
+	if (query->lookup->onesoa &&
+	    query->lookup->rdtype == dns_rdatatype_axfr)
+	{
+		flags |= (query->msg_count == 0) ? DNS_MESSAGETEXTFLAG_ONESOA
+						 : DNS_MESSAGETEXTFLAG_OMITSOA;
+	}
+	if (!query->lookup->comments) {
+		flags |= DNS_MESSAGETEXTFLAG_NOCOMMENTS;
+	}
+
+	isc_buffer_allocate(mctx, &buf, len);
+
+	if (yaml) {
+		enum { Q = 0x1, R = 0x2 }; /* Q:query; R:ecursive */
+		unsigned int tflag = 0;
+		isc_sockaddr_t saddr;
+		char sockstr[ISC_SOCKADDR_FORMATSIZE];
+		uint16_t sport;
+		char *hash;
+		int pf;
+
+		printf("-\n");
+		printf("  type: MESSAGE\n");
+		printf("  message:\n");
+
+		if (isquery) {
+			tflag |= Q;
+			if ((msg->flags & DNS_MESSAGEFLAG_RD) != 0) {
+				tflag |= R;
+			}
+		} else if (((msg->flags & DNS_MESSAGEFLAG_RD) != 0) &&
+			   ((msg->flags & DNS_MESSAGEFLAG_RA) != 0))
+		{
+			tflag |= R;
+		}
+
+		if (tflag == (Q | R)) {
+			printf("    type: RECURSIVE_QUERY\n");
+		} else if (tflag == Q) {
+			printf("    type: AUTH_QUERY\n");
+		} else if (tflag == R) {
+			printf("    type: RECURSIVE_RESPONSE\n");
+		} else {
+			printf("    type: AUTH_RESPONSE\n");
+		}
+
+		if (!isc_time_isepoch(&query->time_sent)) {
+			char tbuf[100];
+			if (query->lookup->use_usec) {
+				isc_time_formatISO8601us(&query->time_sent,
+							 tbuf, sizeof(tbuf));
+			} else {
+				isc_time_formatISO8601ms(&query->time_sent,
+							 tbuf, sizeof(tbuf));
+			}
+			printf("    query_time: !!timestamp %s\n", tbuf);
+		}
+
+		if (!isquery && !isc_time_isepoch(&query->time_recv)) {
+			char tbuf[100];
+			if (query->lookup->use_usec) {
+				isc_time_formatISO8601us(&query->time_recv,
+							 tbuf, sizeof(tbuf));
+			} else {
+				isc_time_formatISO8601ms(&query->time_recv,
+							 tbuf, sizeof(tbuf));
+			}
+			printf("    response_time: !!timestamp %s\n", tbuf);
+		}
+
+		printf("    message_size: %ub\n",
+		       isc_buffer_usedlength(msgbuf));
+
+		pf = isc_sockaddr_pf(&query->sockaddr);
+		if (pf == PF_INET || pf == PF_INET6) {
+			printf("    socket_family: %s\n",
+			       pf == PF_INET ? "INET" : "INET6");
+
+			printf("    socket_protocol: %s\n",
+			       query->lookup->tcp_mode ? "TCP" : "UDP");
+
+			sport = isc_sockaddr_getport(&query->sockaddr);
+			isc_sockaddr_format(&query->sockaddr, sockstr,
+					    sizeof(sockstr));
+			hash = strchr(sockstr, '#');
+			if (hash != NULL) {
+				*hash = '\0';
+			}
+			if (strcmp(sockstr, "::") == 0) {
+				strlcat(sockstr, "0", sizeof(sockstr));
+			}
+
+			printf("    response_address: \"%s\"\n", sockstr);
+			printf("    response_port: %u\n", sport);
+		}
+
+		if (query->sock != NULL &&
+		    isc_socket_getsockname(query->sock, &saddr) ==
+			    ISC_R_SUCCESS)
+		{
+			sport = isc_sockaddr_getport(&saddr);
+			isc_sockaddr_format(&saddr, sockstr, sizeof(sockstr));
+			hash = strchr(sockstr, '#');
+			if (hash != NULL) {
+				*hash = '\0';
+			}
+			if (strcmp(sockstr, "::") == 0) {
+				strlcat(sockstr, "0", sizeof(sockstr));
+			}
+
+			printf("    query_address: \"%s\"\n", sockstr);
+			printf("    query_port: %u\n", sport);
+		}
+
+		printf("    %s:\n", isquery ? "query_message_data"
+					    : "response_message_data");
+		result = dns_message_headertotext(msg, style, flags, buf);
+	} else if (query->lookup->comments && !short_form) {
+		if (query->lookup->cmdline[0] != '\0' && printcmd) {
+			printf("; %s\n", query->lookup->cmdline);
+		}
+		if (msg == query->lookup->sendmsg) {
+			printf(";; Sending:\n");
+		} else {
+			printf(";; Got answer:\n");
+		}
+
+		if (headers) {
+			if (isdotlocal(msg)) {
+				printf(";; WARNING: .local is reserved for "
+				       "Multicast DNS\n;; You are currently "
+				       "testing what happens when an mDNS "
+				       "query is leaked to DNS\n");
+			}
+			printf(";; ->>HEADER<<- opcode: %s, status: %s, "
+			       "id: %u\n",
+			       opcodetext[msg->opcode],
+			       rcode_totext(msg->rcode), msg->id);
+			printf(";; flags:");
+			if ((msg->flags & DNS_MESSAGEFLAG_QR) != 0) {
+				printf(" qr");
+			}
+			if ((msg->flags & DNS_MESSAGEFLAG_AA) != 0) {
+				printf(" aa");
+			}
+			if ((msg->flags & DNS_MESSAGEFLAG_TC) != 0) {
+				printf(" tc");
+			}
+			if ((msg->flags & DNS_MESSAGEFLAG_RD) != 0) {
+				printf(" rd");
+			}
+			if ((msg->flags & DNS_MESSAGEFLAG_RA) != 0) {
+				printf(" ra");
+			}
+			if ((msg->flags & DNS_MESSAGEFLAG_AD) != 0) {
+				printf(" ad");
+			}
+			if ((msg->flags & DNS_MESSAGEFLAG_CD) != 0) {
+				printf(" cd");
+			}
+			if ((msg->flags & 0x0040U) != 0) {
+				printf("; MBZ: 0x4");
+			}
+
+			printf("; QUERY: %u, ANSWER: %u, "
+			       "AUTHORITY: %u, ADDITIONAL: %u\n",
+			       msg->counts[DNS_SECTION_QUESTION],
+			       msg->counts[DNS_SECTION_ANSWER],
+			       msg->counts[DNS_SECTION_AUTHORITY],
+			       msg->counts[DNS_SECTION_ADDITIONAL]);
+
+			if (msg != query->lookup->sendmsg &&
+			    (msg->flags & DNS_MESSAGEFLAG_RD) != 0 &&
+			    (msg->flags & DNS_MESSAGEFLAG_RA) == 0)
+			{
+				printf(";; WARNING: recursion requested "
+				       "but not available\n");
+			}
+		}
+		if (msg != query->lookup->sendmsg &&
+		    query->lookup->edns != -1 && msg->opt == NULL &&
+		    (msg->rcode == dns_rcode_formerr ||
+		     msg->rcode == dns_rcode_notimp))
+		{
+			printf("\n;; WARNING: EDNS query returned status "
+			       "%s - retry with '%s+noedns'\n",
+			       rcode_totext(msg->rcode),
+			       query->lookup->dnssec ? "+nodnssec " : "");
+		}
+		if (msg != query->lookup->sendmsg && extrabytes != 0U) {
+			printf(";; WARNING: Message has %u extra byte%s at "
+			       "end\n",
+			       extrabytes, extrabytes != 0 ? "s" : "");
+		}
+	}
+
+repopulate_buffer:
+
+	if (query->lookup->comments && headers && !short_form) {
+		result = dns_message_pseudosectiontotext(
+			msg, DNS_PSEUDOSECTION_OPT, style, flags, buf);
+		if (result == ISC_R_NOSPACE) {
+		buftoosmall:
+			len += OUTPUTBUF;
+			isc_buffer_free(&buf);
+			isc_buffer_allocate(mctx, &buf, len);
+			goto repopulate_buffer;
+		}
+		check_result(result, "dns_message_pseudosectiontotext");
+	}
+
+	if (query->lookup->section_question && headers) {
+		if (!short_form) {
+			result = dns_message_sectiontotext(
+				msg, DNS_SECTION_QUESTION, style, flags, buf);
+			if (result == ISC_R_NOSPACE) {
+				goto buftoosmall;
+			}
+			check_result(result, "dns_message_sectiontotext");
+		}
+	}
+	if (query->lookup->section_answer) {
+		if (!short_form) {
+			result = dns_message_sectiontotext(
+				msg, DNS_SECTION_ANSWER, style, flags, buf);
+			if (result == ISC_R_NOSPACE) {
+				goto buftoosmall;
+			}
+			check_result(result, "dns_message_sectiontotext");
+		} else {
+			result = short_answer(msg, flags, buf, query);
+			if (result == ISC_R_NOSPACE) {
+				goto buftoosmall;
+			}
+			check_result(result, "short_answer");
+		}
+	}
+	if (query->lookup->section_authority) {
+		if (!short_form) {
+			result = dns_message_sectiontotext(
+				msg, DNS_SECTION_AUTHORITY, style, flags, buf);
+			if (result == ISC_R_NOSPACE) {
+				goto buftoosmall;
+			}
+			check_result(result, "dns_message_sectiontotext");
+		}
+	}
+	if (query->lookup->section_additional) {
+		if (!short_form) {
+			result = dns_message_sectiontotext(
+				msg, DNS_SECTION_ADDITIONAL, style, flags, buf);
+			if (result == ISC_R_NOSPACE) {
+				goto buftoosmall;
+			}
+			check_result(result, "dns_message_sectiontotext");
+			/*
+			 * Only print the signature on the first record.
+			 */
+			if (headers) {
+				result = dns_message_pseudosectiontotext(
+					msg, DNS_PSEUDOSECTION_TSIG, style,
+					flags, buf);
+				if (result == ISC_R_NOSPACE) {
+					goto buftoosmall;
+				}
+				check_result(result, "dns_message_"
+						     "pseudosectiontotext");
+				result = dns_message_pseudosectiontotext(
+					msg, DNS_PSEUDOSECTION_SIG0, style,
+					flags, buf);
+				if (result == ISC_R_NOSPACE) {
+					goto buftoosmall;
+				}
+				check_result(result, "dns_message_"
+						     "pseudosectiontotext");
+			}
+		}
+	}
+
+	if (headers && query->lookup->comments && !short_form && !yaml) {
+		printf("\n");
+	}
+
+	printf("%.*s", (int)isc_buffer_usedlength(buf),
+	       (char *)isc_buffer_base(buf));
+	isc_buffer_free(&buf);
+
+	if (style != NULL) {
+		dns_master_styledestroy(&style, mctx);
+	}
+	return (result);
+}
+
+/*%
+ * print the greeting message when the program first starts up.
+ */
+static void
+printgreeting(int argc, char **argv, dig_lookup_t *lookup) {
+	int i;
+	static bool first = true;
+	char append[MXNAME];
+
+	if (printcmd) {
+		snprintf(lookup->cmdline, sizeof(lookup->cmdline),
+			 "%s; <<>> DiG " VERSION " <<>>", first ? "\n" : "");
+		i = 1;
+		while (i < argc) {
+			snprintf(append, sizeof(append), " %s", argv[i++]);
+			strlcat(lookup->cmdline, append,
+				sizeof(lookup->cmdline));
+		}
+		strlcat(lookup->cmdline, "\n", sizeof(lookup->cmdline));
+		if (first && addresscount != 0) {
+			snprintf(append, sizeof(append),
+				 "; (%d server%s found)\n", addresscount,
+				 addresscount > 1 ? "s" : "");
+			strlcat(lookup->cmdline, append,
+				sizeof(lookup->cmdline));
+		}
+		if (first) {
+			snprintf(append, sizeof(append),
+				 ";; global options:%s%s\n",
+				 short_form ? " +short" : "",
+				 printcmd ? " +cmd" : "");
+			first = false;
+			strlcat(lookup->cmdline, append,
+				sizeof(lookup->cmdline));
+		}
+	}
+}
+
+/*%
+ * We're not using isc_commandline_parse() here since the command line
+ * syntax of dig is quite a bit different from that which can be described
+ * by that routine.
+ * XXX doc options
+ */
+
+static void
+plus_option(char *option, bool is_batchfile, dig_lookup_t *lookup) {
+	isc_result_t result;
+	char *cmd, *value, *last = NULL, *code, *extra;
+	uint32_t num;
+	bool state = true;
+	size_t n;
+
+	INSIST(option != NULL);
+
+	if ((cmd = strtok_r(option, "=", &last)) == NULL) {
+		printf(";; Invalid option %s\n", option);
+		return;
+	}
+	if (strncasecmp(cmd, "no", 2) == 0) {
+		cmd += 2;
+		state = false;
+	}
+	/* parse the rest of the string */
+	value = strtok_r(NULL, "", &last);
+
+#define FULLCHECK(A)                                                 \
+	do {                                                         \
+		size_t _l = strlen(cmd);                             \
+		if (_l >= sizeof(A) || strncasecmp(cmd, A, _l) != 0) \
+			goto invalid_option;                         \
+	} while (0)
+#define FULLCHECK2(A, B)                                                 \
+	do {                                                             \
+		size_t _l = strlen(cmd);                                 \
+		if ((_l >= sizeof(A) || strncasecmp(cmd, A, _l) != 0) && \
+		    (_l >= sizeof(B) || strncasecmp(cmd, B, _l) != 0))   \
+			goto invalid_option;                             \
+	} while (0)
+
+	switch (cmd[0]) {
+	case 'a':
+		switch (cmd[1]) {
+		case 'a': /* aaonly / aaflag */
+			FULLCHECK2("aaonly", "aaflag");
+			lookup->aaonly = state;
+			break;
+		case 'd':
+			switch (cmd[2]) {
+			case 'd': /* additional */
+				FULLCHECK("additional");
+				lookup->section_additional = state;
+				break;
+			case 'f':  /* adflag */
+			case '\0': /* +ad is a synonym for +adflag */
+				FULLCHECK("adflag");
+				lookup->adflag = state;
+				break;
+			default:
+				goto invalid_option;
+			}
+			break;
+		case 'l': /* all */
+			FULLCHECK("all");
+			lookup->section_question = state;
+			lookup->section_authority = state;
+			lookup->section_answer = state;
+			lookup->section_additional = state;
+			lookup->comments = state;
+			lookup->stats = state;
+			printcmd = state;
+			break;
+		case 'n': /* answer */
+			FULLCHECK("answer");
+			lookup->section_answer = state;
+			break;
+		case 'u': /* authority */
+			FULLCHECK("authority");
+			lookup->section_authority = state;
+			break;
+		default:
+			goto invalid_option;
+		}
+		break;
+	case 'b':
+		switch (cmd[1]) {
+		case 'a': /* badcookie */
+			FULLCHECK("badcookie");
+			lookup->badcookie = state;
+			break;
+		case 'e': /* besteffort */
+			FULLCHECK("besteffort");
+			lookup->besteffort = state;
+			break;
+		case 'u': /* bufsize */
+			FULLCHECK("bufsize");
+			if (!state) {
+				goto invalid_option;
+			}
+			if (value == NULL) {
+				lookup->udpsize = DEFAULT_EDNS_BUFSIZE;
+				break;
+			}
+			result = parse_uint(&num, value, COMMSIZE,
+					    "buffer size");
+			if (result != ISC_R_SUCCESS) {
+				warn("Couldn't parse buffer size");
+				goto exit_or_usage;
+			}
+			lookup->udpsize = num;
+			if (lookup->udpsize == 0) {
+				lookup->edns = -1;
+			}
+			break;
+		default:
+			goto invalid_option;
+		}
+		break;
+	case 'c':
+		switch (cmd[1]) {
+		case 'd': /* cdflag */
+			switch (cmd[2]) {
+			case 'f':  /* cdflag */
+			case '\0': /* +cd is a synonym for +cdflag */
+				FULLCHECK("cdflag");
+				lookup->cdflag = state;
+				break;
+			default:
+				goto invalid_option;
+			}
+			break;
+		case 'l': /* class */
+			/* keep +cl for backwards compatibility */
+			FULLCHECK2("cl", "class");
+			lookup->noclass = !state;
+			break;
+		case 'm': /* cmd */
+			FULLCHECK("cmd");
+			printcmd = state;
+			break;
+		case 'o': /* comments */
+			switch (cmd[2]) {
+			case 'm':
+				FULLCHECK("comments");
+				lookup->comments = state;
+				if (lookup == default_lookup) {
+					pluscomm = state;
+				}
+				break;
+			case 'o': /* cookie */
+				FULLCHECK("cookie");
+				if (state && lookup->edns == -1) {
+					lookup->edns = DEFAULT_EDNS_VERSION;
+				}
+				lookup->sendcookie = state;
+				if (value != NULL) {
+					n = strlcpy(hexcookie, value,
+						    sizeof(hexcookie));
+					if (n >= sizeof(hexcookie)) {
+						warn("COOKIE data too large");
+						goto exit_or_usage;
+					}
+					lookup->cookie = hexcookie;
+				} else {
+					lookup->cookie = NULL;
+				}
+				break;
+			default:
+				goto invalid_option;
+			}
+			break;
+		case 'r':
+			FULLCHECK("crypto");
+			lookup->nocrypto = !state;
+			break;
+		default:
+			goto invalid_option;
+		}
+		break;
+	case 'd':
+		switch (cmd[1]) {
+		case 'e': /* defname */
+			FULLCHECK("defname");
+			if (!lookup->trace) {
+				usesearch = state;
+			}
+			break;
+		case 'n': /* dnssec */
+			FULLCHECK("dnssec");
+		dnssec:
+			if (state && lookup->edns == -1) {
+				lookup->edns = DEFAULT_EDNS_VERSION;
+			}
+			lookup->dnssec = state;
+			break;
+		case 'o': /* domain ... but treat "do" as synonym for dnssec */
+			if (cmd[2] == '\0') {
+				goto dnssec;
+			}
+			FULLCHECK("domain");
+			if (value == NULL) {
+				goto need_value;
+			}
+			if (!state) {
+				goto invalid_option;
+			}
+			strlcpy(domainopt, value, sizeof(domainopt));
+			break;
+		case 's': /* dscp */
+			FULLCHECK("dscp");
+			if (!state) {
+				lookup->dscp = -1;
+				break;
+			}
+			if (value == NULL) {
+				goto need_value;
+			}
+			result = parse_uint(&num, value, 0x3f, "DSCP");
+			if (result != ISC_R_SUCCESS) {
+				warn("Couldn't parse DSCP value");
+				goto exit_or_usage;
+			}
+			lookup->dscp = num;
+			break;
+		default:
+			goto invalid_option;
+		}
+		break;
+	case 'e':
+		switch (cmd[1]) {
+		case 'd':
+			switch (cmd[2]) {
+			case 'n':
+				switch (cmd[3]) {
+				case 's':
+					switch (cmd[4]) {
+					case 0:
+						FULLCHECK("edns");
+						if (!state) {
+							lookup->edns = -1;
+							break;
+						}
+						if (value == NULL) {
+							lookup->edns =
+								DEFAULT_EDNS_VERSION;
+							break;
+						}
+						result = parse_uint(&num, value,
+								    255,
+								    "edns");
+						if (result != ISC_R_SUCCESS) {
+							warn("Couldn't parse "
+							     "edns");
+							goto exit_or_usage;
+						}
+						lookup->edns = num;
+						break;
+					case 'f':
+						FULLCHECK("ednsflags");
+						if (!state) {
+							lookup->ednsflags = 0;
+							break;
+						}
+						if (value == NULL) {
+							lookup->ednsflags = 0;
+							break;
+						}
+						result = parse_xint(
+							&num, value, 0xffff,
+							"ednsflags");
+						if (result != ISC_R_SUCCESS) {
+							warn("Couldn't parse "
+							     "ednsflags");
+							goto exit_or_usage;
+						}
+						lookup->ednsflags = num;
+						break;
+					case 'n':
+						FULLCHECK("ednsnegotiation");
+						lookup->ednsneg = state;
+						break;
+					case 'o':
+						FULLCHECK("ednsopt");
+						if (!state) {
+							lookup->ednsoptscnt = 0;
+							break;
+						}
+						code = NULL;
+						if (value != NULL) {
+							code = strtok_r(value,
+									":",
+									&last);
+						}
+						if (code == NULL) {
+							warn("ednsopt no "
+							     "code point "
+							     "specified");
+							goto exit_or_usage;
+						}
+						extra = strtok_r(NULL, "\0",
+								 &last);
+						save_opt(lookup, code, extra);
+						break;
+					default:
+						goto invalid_option;
+					}
+					break;
+				default:
+					goto invalid_option;
+				}
+				break;
+			default:
+				goto invalid_option;
+			}
+			break;
+		case 'x':
+			switch (cmd[2]) {
+			case 'p':
+				switch (cmd[3]) {
+				case 'a':
+					FULLCHECK("expandaaaa");
+					lookup->expandaaaa = state;
+					break;
+				case 'i':
+					FULLCHECK("expire");
+					lookup->expire = state;
+					break;
+				default:
+					goto invalid_option;
+				}
+				break;
+			default:
+				goto invalid_option;
+			}
+			break;
+		default:
+			goto invalid_option;
+		}
+		break;
+	case 'f': /* fail */
+		FULLCHECK("fail");
+		lookup->servfail_stops = state;
+		break;
+	case 'h':
+		FULLCHECK("header-only");
+		lookup->header_only = state;
+		break;
+	case 'i':
+		switch (cmd[1]) {
+		case 'd': /* identify */
+			switch (cmd[2]) {
+			case 'e':
+				FULLCHECK("identify");
+				lookup->identify = state;
+				break;
+			case 'n':
+				switch (cmd[3]) {
+				case 'i':
+					FULLCHECK("idnin");
+#ifndef HAVE_LIBIDN2
+					fprintf(stderr, ";; IDN input support"
+							" not enabled\n");
+#else  /* ifndef HAVE_LIBIDN2 */
+					lookup->idnin = state;
+#endif /* ifndef HAVE_LIBIDN2 */
+					break;
+				case 'o':
+					FULLCHECK("idnout");
+#ifndef HAVE_LIBIDN2
+					fprintf(stderr, ";; IDN output support"
+							" not enabled\n");
+#else  /* ifndef HAVE_LIBIDN2 */
+					lookup->idnout = state;
+#endif /* ifndef HAVE_LIBIDN2 */
+					break;
+				default:
+					goto invalid_option;
+				}
+				break;
+			default:
+				goto invalid_option;
+			}
+			break;
+		case 'g': /* ignore */
+		default:  /*
+			   * Inherits default for compatibility (+[no]i*).
+			   */
+			FULLCHECK("ignore");
+			lookup->ignore = state;
+		}
+		break;
+	case 'k':
+		switch (cmd[1]) {
+		case 'e':
+			switch (cmd[2]) {
+			case 'e':
+				switch (cmd[3]) {
+				case 'p':
+					switch (cmd[4]) {
+					case 'a':
+						FULLCHECK("keepalive");
+						lookup->tcp_keepalive = state;
+						break;
+					case 'o':
+						FULLCHECK("keepopen");
+						keep_open = state;
+						break;
+					default:
+						goto invalid_option;
+					}
+					break;
+				default:
+					goto invalid_option;
+				}
+				break;
+			default:
+				goto invalid_option;
+			}
+			break;
+		default:
+			goto invalid_option;
+		}
+		break;
+	case 'm': /* multiline */
+		switch (cmd[1]) {
+		case 'a':
+			FULLCHECK("mapped");
+			lookup->mapped = state;
+			break;
+		case 'u':
+			FULLCHECK("multiline");
+			lookup->multiline = state;
+			break;
+		default:
+			goto invalid_option;
+		}
+		break;
+	case 'n':
+		switch (cmd[1]) {
+		case 'd': /* ndots */
+			FULLCHECK("ndots");
+			if (value == NULL) {
+				goto need_value;
+			}
+			if (!state) {
+				goto invalid_option;
+			}
+			result = parse_uint(&num, value, MAXNDOTS, "ndots");
+			if (result != ISC_R_SUCCESS) {
+				warn("Couldn't parse ndots");
+				goto exit_or_usage;
+			}
+			ndots = num;
+			break;
+		case 's':
+			switch (cmd[2]) {
+			case 'i': /* nsid */
+				FULLCHECK("nsid");
+				if (state && lookup->edns == -1) {
+					lookup->edns = DEFAULT_EDNS_VERSION;
+				}
+				lookup->nsid = state;
+				break;
+			case 's': /* nssearch */
+				FULLCHECK("nssearch");
+				lookup->ns_search_only = state;
+				if (state) {
+					lookup->trace_root = true;
+					lookup->recurse = true;
+					lookup->identify = true;
+					lookup->stats = false;
+					lookup->comments = false;
+					lookup->section_additional = false;
+					lookup->section_authority = false;
+					lookup->section_question = false;
+					lookup->rdtype = dns_rdatatype_ns;
+					lookup->rdtypeset = true;
+					short_form = true;
+					lookup->rrcomments = 0;
+				}
+				break;
+			default:
+				goto invalid_option;
+			}
+			break;
+		default:
+			goto invalid_option;
+		}
+		break;
+	case 'o':
+		switch (cmd[1]) {
+		case 'n':
+			FULLCHECK("onesoa");
+			lookup->onesoa = state;
+			break;
+		case 'p':
+			FULLCHECK("opcode");
+			if (!state) {
+				lookup->opcode = 0; /* default - query */
+				break;
+			}
+			if (value == NULL) {
+				goto need_value;
+			}
+			for (num = 0;
+			     num < sizeof(opcodetext) / sizeof(opcodetext[0]);
+			     num++)
+			{
+				if (strcasecmp(opcodetext[num], value) == 0) {
+					break;
+				}
+			}
+			if (num < 16) {
+				lookup->opcode = (dns_opcode_t)num;
+				break;
+			}
+			result = parse_uint(&num, value, 15, "opcode");
+			if (result != ISC_R_SUCCESS) {
+				warn("Couldn't parse opcode");
+				goto exit_or_usage;
+			}
+			lookup->opcode = (dns_opcode_t)num;
+			break;
+		default:
+			goto invalid_option;
+		}
+		break;
+	case 'p':
+		FULLCHECK("padding");
+		if (state && lookup->edns == -1) {
+			lookup->edns = DEFAULT_EDNS_VERSION;
+		}
+		if (value == NULL) {
+			goto need_value;
+		}
+		result = parse_uint(&num, value, 512, "padding");
+		if (result != ISC_R_SUCCESS) {
+			warn("Couldn't parse padding");
+			goto exit_or_usage;
+		}
+		lookup->padding = (uint16_t)num;
+		break;
+	case 'q':
+		switch (cmd[1]) {
+		case 'r': /* qr */
+			FULLCHECK("qr");
+			lookup->qr = state;
+			break;
+		case 'u': /* question */
+			FULLCHECK("question");
+			lookup->section_question = state;
+			if (lookup == default_lookup) {
+				plusquest = state;
+			}
+			break;
+		default:
+			goto invalid_option;
+		}
+		break;
+	case 'r':
+		switch (cmd[1]) {
+		case 'a': /* raflag */
+			FULLCHECK("raflag");
+			lookup->raflag = state;
+			break;
+		case 'd': /* rdflag */
+			FULLCHECK("rdflag");
+			lookup->recurse = state;
+			break;
+		case 'e':
+			switch (cmd[2]) {
+			case 'c': /* recurse */
+				FULLCHECK("recurse");
+				lookup->recurse = state;
+				break;
+			case 't': /* retry / retries */
+				FULLCHECK2("retry", "retries");
+				if (value == NULL) {
+					goto need_value;
+				}
+				if (!state) {
+					goto invalid_option;
+				}
+				result = parse_uint(&lookup->retries, value,
+						    MAXTRIES - 1, "retries");
+				if (result != ISC_R_SUCCESS) {
+					warn("Couldn't parse retries");
+					goto exit_or_usage;
+				}
+				lookup->retries++;
+				break;
+			default:
+				goto invalid_option;
+			}
+			break;
+		case 'r': /* rrcomments */
+			FULLCHECK("rrcomments");
+			lookup->rrcomments = state ? 1 : -1;
+			break;
+		default:
+			goto invalid_option;
+		}
+		break;
+	case 's':
+		switch (cmd[1]) {
+		case 'e': /* search */
+			FULLCHECK("search");
+			if (!lookup->trace) {
+				usesearch = state;
+			}
+			break;
+		case 'h':
+			if (cmd[2] != 'o') {
+				goto invalid_option;
+			}
+			switch (cmd[3]) {
+			case 'r': /* short */
+				FULLCHECK("short");
+				short_form = state;
+				if (state) {
+					printcmd = false;
+					lookup->section_additional = false;
+					lookup->section_answer = true;
+					lookup->section_authority = false;
+					lookup->section_question = false;
+					lookup->comments = false;
+					lookup->stats = false;
+					lookup->rrcomments = -1;
+				}
+				break;
+			case 'w': /* showsearch */
+				FULLCHECK("showsearch");
+				if (!lookup->trace) {
+					showsearch = state;
+					usesearch = state;
+				}
+				break;
+			default:
+				goto invalid_option;
+			}
+			break;
+		case 'i': /* sigchase */
+			FULLCHECK("sigchase");
+			fprintf(stderr, ";; +sigchase option is deprecated");
+			break;
+		case 'p': /* split */
+			FULLCHECK("split");
+			if (value != NULL && !state) {
+				goto invalid_option;
+			}
+			if (!state) {
+				splitwidth = 0;
+				break;
+			} else if (value == NULL) {
+				break;
+			}
+
+			result = parse_uint(&splitwidth, value, 1023, "split");
+			if ((splitwidth % 4) != 0U) {
+				splitwidth = ((splitwidth + 3) / 4) * 4;
+				fprintf(stderr,
+					";; Warning, split must be "
+					"a multiple of 4; adjusting "
+					"to %u\n",
+					splitwidth);
+			}
+			/*
+			 * There is an adjustment done in the
+			 * totext_<rrtype>() functions which causes
+			 * splitwidth to shrink.  This is okay when we're
+			 * using the default width but incorrect in this
+			 * case, so we correct for it
+			 */
+			if (splitwidth) {
+				splitwidth += 3;
+			}
+			if (result != ISC_R_SUCCESS) {
+				warn("Couldn't parse split");
+				goto exit_or_usage;
+			}
+			break;
+		case 't': /* stats */
+			FULLCHECK("stats");
+			lookup->stats = state;
+			break;
+		case 'u': /* subnet */
+			FULLCHECK("subnet");
+			if (state && value == NULL) {
+				goto need_value;
+			}
+			if (!state) {
+				if (lookup->ecs_addr != NULL) {
+					isc_mem_free(mctx, lookup->ecs_addr);
+					lookup->ecs_addr = NULL;
+				}
+				break;
+			}
+			if (lookup->edns == -1) {
+				lookup->edns = DEFAULT_EDNS_VERSION;
+			}
+			if (lookup->ecs_addr != NULL) {
+				isc_mem_free(mctx, lookup->ecs_addr);
+				lookup->ecs_addr = NULL;
+			}
+			result = parse_netprefix(&lookup->ecs_addr, value);
+			if (result != ISC_R_SUCCESS) {
+				warn("Couldn't parse client");
+				goto exit_or_usage;
+			}
+			break;
+		default:
+			goto invalid_option;
+		}
+		break;
+	case 't':
+		switch (cmd[1]) {
+		case 'c': /* tcp */
+			switch (cmd[2]) {
+			case 'f':
+				FULLCHECK("tcflag");
+				lookup->tcflag = state;
+				break;
+			case 'p':
+				FULLCHECK("tcp");
+				if (!is_batchfile) {
+					lookup->tcp_mode = state;
+					lookup->tcp_mode_set = true;
+				}
+				break;
+			default:
+				goto invalid_option;
+			}
+			break;
+		case 'i': /* timeout */
+			FULLCHECK("timeout");
+			if (value == NULL) {
+				goto need_value;
+			}
+			if (!state) {
+				goto invalid_option;
+			}
+			result = parse_uint(&timeout, value, MAXTIMEOUT,
+					    "timeout");
+			if (result != ISC_R_SUCCESS) {
+				warn("Couldn't parse timeout");
+				goto exit_or_usage;
+			}
+			if (timeout == 0) {
+				timeout = 1;
+			}
+			break;
+		case 'o':
+			FULLCHECK("topdown");
+			fprintf(stderr, ";; +topdown option is deprecated");
+			break;
+		case 'r':
+			switch (cmd[2]) {
+			case 'a': /* trace */
+				FULLCHECK("trace");
+				lookup->trace = state;
+				lookup->trace_root = state;
+				if (state) {
+					lookup->recurse = true;
+					lookup->identify = true;
+					lookup->comments = false;
+					lookup->rrcomments = 0;
+					lookup->stats = false;
+					lookup->section_additional = false;
+					lookup->section_authority = true;
+					lookup->section_question = false;
+					lookup->dnssec = true;
+					lookup->sendcookie = true;
+					usesearch = false;
+				}
+				break;
+			case 'i': /* tries */
+				FULLCHECK("tries");
+				if (value == NULL) {
+					goto need_value;
+				}
+				if (!state) {
+					goto invalid_option;
+				}
+				result = parse_uint(&lookup->retries, value,
+						    MAXTRIES, "tries");
+				if (result != ISC_R_SUCCESS) {
+					warn("Couldn't parse tries");
+					goto exit_or_usage;
+				}
+				if (lookup->retries == 0) {
+					lookup->retries = 1;
+				}
+				break;
+			case 'u': /* trusted-key */
+				FULLCHECK("trusted-key");
+				fprintf(stderr, ";; +trusted-key option is "
+						"deprecated");
+				break;
+			default:
+				goto invalid_option;
+			}
+			break;
+		case 't':
+			switch (cmd[2]) {
+			case 'l':
+				switch (cmd[3]) {
+				case 0:
+				case 'i': /* ttlid */
+					FULLCHECK2("ttl", "ttlid");
+					lookup->nottl = !state;
+					break;
+				case 'u': /* ttlunits */
+					FULLCHECK("ttlunits");
+					lookup->nottl = false;
+					lookup->ttlunits = state;
+					break;
+				default:
+					goto invalid_option;
+				}
+				break;
+			default:
+				goto invalid_option;
+			}
+			break;
+		default:
+			goto invalid_option;
+		}
+		break;
+	case 'u':
+		switch (cmd[1]) {
+		case 'n':
+			switch (cmd[2]) {
+			case 'e':
+				FULLCHECK("unexpected");
+				lookup->accept_reply_unexpected_src = state;
+				break;
+			case 'k':
+				FULLCHECK("unknownformat");
+				lookup->print_unknown_format = state;
+				break;
+			default:
+				goto invalid_option;
+			}
+			break;
+		default:
+			goto invalid_option;
+		}
+
+		break;
+	case 'v':
+		FULLCHECK("vc");
+		if (!is_batchfile) {
+			lookup->tcp_mode = state;
+			lookup->tcp_mode_set = true;
+		}
+		break;
+	case 'y': /* yaml */
+		FULLCHECK("yaml");
+		yaml = state;
+		if (state) {
+			printcmd = false;
+			lookup->stats = false;
+			lookup->rrcomments = -1;
+		}
+		break;
+	case 'z': /* zflag */
+		FULLCHECK("zflag");
+		lookup->zflag = state;
+		break;
+	default:
+	invalid_option:
+	need_value:
+#if TARGET_OS_IPHONE
+	exit_or_usage:
+#endif /* if TARGET_OS_IPHONE */
+		fprintf(stderr, "Invalid option: +%s\n", option);
+		usage();
+	}
+	return;
+
+#if !TARGET_OS_IPHONE
+exit_or_usage:
+	digexit();
+#endif /* if !TARGET_OS_IPHONE */
+}
+
+/*%
+ * #true returned if value was used
+ */
+static const char *single_dash_opts = "46dhimnruv";
+static const char *dash_opts = "46bcdfhikmnpqrtvyx";
+static bool
+dash_option(char *option, char *next, dig_lookup_t **lookup,
+	    bool *open_type_class, bool *need_clone, bool config_only, int argc,
+	    char **argv, bool *firstarg) {
+	char opt, *value, *ptr, *ptr2, *ptr3, *last;
+	isc_result_t result;
+	bool value_from_next;
+	isc_textregion_t tr;
+	dns_rdatatype_t rdtype;
+	dns_rdataclass_t rdclass;
+	char textname[MXNAME];
+	struct in_addr in4;
+	struct in6_addr in6;
+	in_port_t srcport;
+	char *hash, *cmd;
+	uint32_t num;
+
+	while (strpbrk(option, single_dash_opts) == &option[0]) {
+		/*
+		 * Since the -[46dhimnuv] options do not take an argument,
+		 * account for them (in any number and/or combination)
+		 * if they appear as the first character(s) of a q-opt.
+		 */
+		opt = option[0];
+		switch (opt) {
+		case '4':
+			if (have_ipv4) {
+				isc_net_disableipv6();
+				have_ipv6 = false;
+			} else {
+				fatal("can't find IPv4 networking");
+				UNREACHABLE();
+				return (false);
+			}
+			break;
+		case '6':
+			if (have_ipv6) {
+				isc_net_disableipv4();
+				have_ipv4 = false;
+			} else {
+				fatal("can't find IPv6 networking");
+				UNREACHABLE();
+				return (false);
+			}
+			break;
+		case 'd':
+			ptr = strpbrk(&option[1], dash_opts);
+			if (ptr != &option[1]) {
+				cmd = option;
+				FULLCHECK("debug");
+				debugging = true;
+				return (false);
+			} else {
+				debugging = true;
+			}
+			break;
+		case 'h':
+			help();
+			exit(0);
+			break;
+		case 'i':
+			/* deprecated */
+			break;
+		case 'm': /* memdebug */
+			/* memdebug is handled in preparse_args() */
+			break;
+		case 'n':
+			/* deprecated */
+			break;
+		case 'r':
+			debug("digrc (late)");
+			digrc = false;
+			break;
+		case 'u':
+			(*lookup)->use_usec = true;
+			break;
+		case 'v':
+			version();
+			exit(0);
+			break;
+		}
+		if (strlen(option) > 1U) {
+			option = &option[1];
+		} else {
+			return (false);
+		}
+	}
+	opt = option[0];
+	if (strlen(option) > 1U) {
+		value_from_next = false;
+		value = &option[1];
+	} else {
+		value_from_next = true;
+		value = next;
+	}
+	if (value == NULL) {
+		goto invalid_option;
+	}
+	switch (opt) {
+	case 'b':
+		hash = strchr(value, '#');
+		if (hash != NULL) {
+			result = parse_uint(&num, hash + 1, MAXPORT,
+					    "port number");
+			if (result != ISC_R_SUCCESS) {
+				fatal("Couldn't parse port number");
+			}
+			srcport = num;
+			*hash = '\0';
+		} else {
+			srcport = 0;
+		}
+		if (have_ipv6 && inet_pton(AF_INET6, value, &in6) == 1) {
+			isc_sockaddr_fromin6(&bind_address, &in6, srcport);
+			isc_net_disableipv4();
+		} else if (have_ipv4 && inet_pton(AF_INET, value, &in4) == 1) {
+			isc_sockaddr_fromin(&bind_address, &in4, srcport);
+			isc_net_disableipv6();
+		} else {
+			if (hash != NULL) {
+				*hash = '#';
+			}
+			fatal("invalid address %s", value);
+		}
+		if (hash != NULL) {
+			*hash = '#';
+		}
+		specified_source = true;
+		return (value_from_next);
+	case 'c':
+		if ((*lookup)->rdclassset) {
+			fprintf(stderr, ";; Warning, extra class option\n");
+		}
+		*open_type_class = false;
+		tr.base = value;
+		tr.length = (unsigned int)strlen(value);
+		result = dns_rdataclass_fromtext(&rdclass,
+						 (isc_textregion_t *)&tr);
+		if (result == ISC_R_SUCCESS) {
+			(*lookup)->rdclass = rdclass;
+			(*lookup)->rdclassset = true;
+		} else {
+			fprintf(stderr,
+				";; Warning, ignoring "
+				"invalid class %s\n",
+				value);
+		}
+		return (value_from_next);
+	case 'f':
+		atomic_store(&batchname, (uintptr_t)value);
+		return (value_from_next);
+	case 'k':
+		strlcpy(keyfile, value, sizeof(keyfile));
+		return (value_from_next);
+	case 'p':
+		result = parse_uint(&num, value, MAXPORT, "port number");
+		if (result != ISC_R_SUCCESS) {
+			fatal("Couldn't parse port number");
+		}
+		port = num;
+		return (value_from_next);
+	case 'q':
+		if (!config_only) {
+			if (*need_clone) {
+				(*lookup) = clone_lookup(default_lookup, true);
+			}
+			*need_clone = true;
+			strlcpy((*lookup)->textname, value,
+				sizeof((*lookup)->textname));
+			(*lookup)->trace_root = ((*lookup)->trace ||
+						 (*lookup)->ns_search_only);
+			(*lookup)->new_search = true;
+			if (*firstarg) {
+				printgreeting(argc, argv, *lookup);
+				*firstarg = false;
+			}
+			ISC_LIST_APPEND(lookup_list, (*lookup), link);
+			debug("looking up %s", (*lookup)->textname);
+		}
+		return (value_from_next);
+	case 't':
+		*open_type_class = false;
+		if (strncasecmp(value, "ixfr=", 5) == 0) {
+			rdtype = dns_rdatatype_ixfr;
+			result = ISC_R_SUCCESS;
+		} else {
+			tr.base = value;
+			tr.length = (unsigned int)strlen(value);
+			result = dns_rdatatype_fromtext(
+				&rdtype, (isc_textregion_t *)&tr);
+			if (result == ISC_R_SUCCESS &&
+			    rdtype == dns_rdatatype_ixfr)
+			{
+				result = DNS_R_UNKNOWN;
+			}
+		}
+		if (result == ISC_R_SUCCESS) {
+			if ((*lookup)->rdtypeset) {
+				fprintf(stderr, ";; Warning, "
+						"extra type option\n");
+			}
+			if (rdtype == dns_rdatatype_ixfr) {
+				uint32_t serial;
+				(*lookup)->rdtype = dns_rdatatype_ixfr;
+				(*lookup)->rdtypeset = true;
+				result = parse_uint(&serial, &value[5],
+						    MAXSERIAL, "serial number");
+				if (result != ISC_R_SUCCESS) {
+					fatal("Couldn't parse serial number");
+				}
+				(*lookup)->ixfr_serial = serial;
+				(*lookup)->section_question = plusquest;
+				(*lookup)->comments = pluscomm;
+				if (!(*lookup)->tcp_mode_set) {
+					(*lookup)->tcp_mode = true;
+				}
+			} else {
+				(*lookup)->rdtype = rdtype;
+				if (!config_only) {
+					(*lookup)->rdtypeset = true;
+				}
+				if (rdtype == dns_rdatatype_axfr) {
+					(*lookup)->section_question = plusquest;
+					(*lookup)->comments = pluscomm;
+				} else if (rdtype == dns_rdatatype_any) {
+					if (!(*lookup)->tcp_mode_set) {
+						(*lookup)->tcp_mode = true;
+					}
+				}
+				(*lookup)->ixfr_serial = false;
+			}
+		} else {
+			fprintf(stderr,
+				";; Warning, ignoring "
+				"invalid type %s\n",
+				value);
+		}
+		return (value_from_next);
+	case 'y':
+		if ((ptr = strtok_r(value, ":", &last)) == NULL) {
+			usage();
+		}
+		if ((ptr2 = strtok_r(NULL, ":", &last)) == NULL) { /* name or
+								    * secret */
+			usage();
+		}
+		if ((ptr3 = strtok_r(NULL, ":", &last)) != NULL) { /* secret or
+								    * NULL */
+			parse_hmac(ptr);
+			ptr = ptr2;
+			ptr2 = ptr3;
+		} else {
+			hmacname = DNS_TSIG_HMACMD5_NAME;
+			digestbits = 0;
+		}
+		/* XXXONDREJ: FIXME */
+		strlcpy(keynametext, ptr, sizeof(keynametext));
+		strlcpy(keysecret, ptr2, sizeof(keysecret));
+		return (value_from_next);
+	case 'x':
+		if (*need_clone) {
+			*lookup = clone_lookup(default_lookup, true);
+		}
+		*need_clone = true;
+		if (get_reverse(textname, sizeof(textname), value, false) ==
+		    ISC_R_SUCCESS)
+		{
+			strlcpy((*lookup)->textname, textname,
+				sizeof((*lookup)->textname));
+			debug("looking up %s", (*lookup)->textname);
+			(*lookup)->trace_root = ((*lookup)->trace ||
+						 (*lookup)->ns_search_only);
+			if (!(*lookup)->rdtypeset) {
+				(*lookup)->rdtype = dns_rdatatype_ptr;
+			}
+			if (!(*lookup)->rdclassset) {
+				(*lookup)->rdclass = dns_rdataclass_in;
+			}
+			(*lookup)->new_search = true;
+			if (*firstarg) {
+				printgreeting(argc, argv, *lookup);
+				*firstarg = false;
+			}
+			ISC_LIST_APPEND(lookup_list, *lookup, link);
+		} else {
+			fprintf(stderr, "Invalid IP address %s\n", value);
+			exit(1);
+		}
+		return (value_from_next);
+	invalid_option:
+	default:
+		fprintf(stderr, "Invalid option: -%s\n", option);
+		usage();
+	}
+	UNREACHABLE();
+	return (false);
+}
+
+/*%
+ * Because we may be trying to do memory allocation recording, we're going
+ * to need to parse the arguments for the -m *before* we start the main
+ * argument parsing routine.
+ *
+ * I'd prefer not to have to do this, but I am not quite sure how else to
+ * fix the problem.  Argument parsing in dig involves memory allocation
+ * by its nature, so it can't be done in the main argument parser.
+ */
+static void
+preparse_args(int argc, char **argv) {
+	int rc;
+	char **rv;
+	char *option;
+
+	rc = argc;
+	rv = argv;
+	for (rc--, rv++; rc > 0; rc--, rv++) {
+		if (rv[0][0] != '-') {
+			continue;
+		}
+		option = &rv[0][1];
+		while (strpbrk(option, single_dash_opts) == &option[0]) {
+			switch (option[0]) {
+			case 'd':
+				/* For debugging early startup */
+				debugging = true;
+				break;
+			case 'm':
+				memdebugging = true;
+				isc_mem_debugging = ISC_MEM_DEBUGTRACE |
+						    ISC_MEM_DEBUGRECORD;
+				break;
+			case 'r':
+				/*
+				 * Must be done early, because ~/.digrc
+				 * is read before command line parsing
+				 */
+				debug("digrc (early)");
+				digrc = false;
+				break;
+			case '4':
+				if (ipv6only) {
+					fatal("only one of -4 and -6 allowed");
+				}
+				ipv4only = true;
+				break;
+			case '6':
+				if (ipv4only) {
+					fatal("only one of -4 and -6 allowed");
+				}
+				ipv6only = true;
+				break;
+			}
+			option = &option[1];
+		}
+		if (strlen(option) == 0U) {
+			continue;
+		}
+		/* Look for dash value option. */
+		if (strpbrk(option, dash_opts) != &option[0]) {
+			goto invalid_option;
+		}
+		if (strlen(option) > 1U) {
+			/* value in option. */
+			continue;
+		}
+		/* Dash value is next argument so we need to skip it. */
+		rc--, rv++;
+		/* Handle missing argument */
+		if (rc == 0) {
+		invalid_option:
+			fprintf(stderr, "Invalid option: -%s\n", option);
+			usage();
+		}
+	}
+}
+
+static int
+split_batchline(char *batchline, char **bargv, int len, const char *msg) {
+	int bargc;
+	char *last = NULL;
+
+	REQUIRE(batchline != NULL);
+
+	for (bargc = 1, bargv[bargc] = strtok_r(batchline, " \t\r\n", &last);
+	     bargc < len && bargv[bargc];
+	     bargv[++bargc] = strtok_r(NULL, " \t\r\n", &last))
+	{
+		debug("%s %d: %s", msg, bargc, bargv[bargc]);
+	}
+	return (bargc);
+}
+
+static void
+parse_args(bool is_batchfile, bool config_only, int argc, char **argv) {
+	isc_result_t result;
+	isc_textregion_t tr;
+	bool firstarg = true;
+	dig_lookup_t *lookup = NULL;
+	dns_rdatatype_t rdtype;
+	dns_rdataclass_t rdclass;
+	bool open_type_class = true;
+	char batchline[MXNAME];
+	int bargc;
+	char *bargv[64];
+	int rc;
+	char **rv;
+#ifndef NOPOSIX
+	char *homedir;
+	char rcfile[PATH_MAX];
+#endif /* ifndef NOPOSIX */
+	bool need_clone = true;
+
+	/*
+	 * The semantics for parsing the args is a bit complex; if
+	 * we don't have a host yet, make the arg apply globally,
+	 * otherwise make it apply to the latest host.  This is
+	 * a bit different than the previous versions, but should
+	 * form a consistent user interface.
+	 *
+	 * First, create a "default lookup" which won't actually be used
+	 * anywhere, except for cloning into new lookups
+	 */
+
+	debug("parse_args()");
+	if (!is_batchfile) {
+		debug("making new lookup");
+		default_lookup = make_empty_lookup();
+		default_lookup->adflag = true;
+		default_lookup->edns = DEFAULT_EDNS_VERSION;
+		default_lookup->sendcookie = true;
+
+#ifndef NOPOSIX
+		/*
+		 * Treat ${HOME}/.digrc as a special batchfile
+		 */
+		INSIST(batchfp == NULL);
+		homedir = getenv("HOME");
+		if (homedir != NULL && digrc) {
+			unsigned int n;
+			debug("digrc (open)");
+			n = snprintf(rcfile, sizeof(rcfile), "%s/.digrc",
+				     homedir);
+			if (n < sizeof(rcfile)) {
+				batchfp = fopen(rcfile, "r");
+			}
+		}
+		if (batchfp != NULL) {
+			while (fgets(batchline, sizeof(batchline), batchfp) !=
+			       0)
+			{
+				debug("config line %s", batchline);
+				bargc = split_batchline(batchline, bargv, 62,
+							".digrc argv");
+				bargv[0] = argv[0];
+				argv0 = argv[0];
+				parse_args(true, true, bargc, (char **)bargv);
+			}
+			fclose(batchfp);
+		}
+#endif /* ifndef NOPOSIX */
+	}
+
+	if (is_batchfile && !config_only) {
+		/* Processing '-f batchfile'. */
+		lookup = clone_lookup(default_lookup, true);
+		need_clone = false;
+	} else {
+		lookup = default_lookup;
+	}
+
+	rc = argc;
+	rv = argv;
+	for (rc--, rv++; rc > 0; rc--, rv++) {
+		debug("main parsing %s", rv[0]);
+		if (strncmp(rv[0], "%", 1) == 0) {
+			break;
+		}
+		if (rv[0][0] == '@') {
+			if (is_batchfile && !config_only) {
+				addresscount = getaddresses(lookup, &rv[0][1],
+							    &result);
+				if (addresscount == 0) {
+					fprintf(stderr,
+						"couldn't get address "
+						"for '%s': %s: skipping "
+						"lookup\n",
+						&rv[0][1],
+						isc_result_totext(result));
+					if (ISC_LINK_LINKED(lookup, link)) {
+						ISC_LIST_DEQUEUE(lookup_list,
+								 lookup, link);
+					}
+					destroy_lookup(lookup);
+					return;
+				}
+			} else {
+				addresscount = getaddresses(lookup, &rv[0][1],
+							    NULL);
+				if (addresscount == 0) {
+					fatal("no valid addresses for '%s'\n",
+					      &rv[0][1]);
+				}
+			}
+		} else if (rv[0][0] == '+') {
+			plus_option(&rv[0][1], is_batchfile, lookup);
+		} else if (rv[0][0] == '-') {
+			if (rc <= 1) {
+				if (dash_option(&rv[0][1], NULL, &lookup,
+						&open_type_class, &need_clone,
+						config_only, argc, argv,
+						&firstarg))
+				{
+					rc--;
+					rv++;
+				}
+			} else {
+				if (dash_option(&rv[0][1], rv[1], &lookup,
+						&open_type_class, &need_clone,
+						config_only, argc, argv,
+						&firstarg))
+				{
+					rc--;
+					rv++;
+				}
+			}
+		} else {
+			/*
+			 * Anything which isn't an option
+			 */
+			if (open_type_class) {
+				if (strncasecmp(rv[0], "ixfr=", 5) == 0) {
+					rdtype = dns_rdatatype_ixfr;
+					result = ISC_R_SUCCESS;
+				} else {
+					tr.base = rv[0];
+					tr.length = (unsigned int)strlen(rv[0]);
+					result = dns_rdatatype_fromtext(
+						&rdtype,
+						(isc_textregion_t *)&tr);
+					if (result == ISC_R_SUCCESS &&
+					    rdtype == dns_rdatatype_ixfr)
+					{
+						fprintf(stderr, ";; Warning, "
+								"ixfr requires "
+								"a "
+								"serial "
+								"number\n");
+						continue;
+					}
+				}
+				if (result == ISC_R_SUCCESS) {
+					if (lookup->rdtypeset) {
+						fprintf(stderr, ";; Warning, "
+								"extra type "
+								"option\n");
+					}
+					if (rdtype == dns_rdatatype_ixfr) {
+						uint32_t serial;
+						lookup->rdtype =
+							dns_rdatatype_ixfr;
+						lookup->rdtypeset = true;
+						result = parse_uint(&serial,
+								    &rv[0][5],
+								    MAXSERIAL,
+								    "serial "
+								    "number");
+						if (result != ISC_R_SUCCESS) {
+							fatal("Couldn't parse "
+							      "serial number");
+						}
+						lookup->ixfr_serial = serial;
+						lookup->section_question =
+							plusquest;
+						lookup->comments = pluscomm;
+						if (!lookup->tcp_mode_set) {
+							lookup->tcp_mode = true;
+						}
+					} else {
+						lookup->rdtype = rdtype;
+						lookup->rdtypeset = true;
+						if (rdtype ==
+						    dns_rdatatype_axfr)
+						{
+							lookup->section_question =
+								plusquest;
+							lookup->comments =
+								pluscomm;
+						}
+						if (rdtype ==
+							    dns_rdatatype_any &&
+						    !lookup->tcp_mode_set)
+						{
+							lookup->tcp_mode = true;
+						}
+						lookup->ixfr_serial = false;
+					}
+					continue;
+				}
+				result = dns_rdataclass_fromtext(
+					&rdclass, (isc_textregion_t *)&tr);
+				if (result == ISC_R_SUCCESS) {
+					if (lookup->rdclassset) {
+						fprintf(stderr, ";; Warning, "
+								"extra class "
+								"option\n");
+					}
+					lookup->rdclass = rdclass;
+					lookup->rdclassset = true;
+					continue;
+				}
+			}
+
+			if (!config_only) {
+				if (need_clone) {
+					lookup = clone_lookup(default_lookup,
+							      true);
+				}
+				need_clone = true;
+				strlcpy(lookup->textname, rv[0],
+					sizeof(lookup->textname));
+				lookup->trace_root = (lookup->trace ||
+						      lookup->ns_search_only);
+				lookup->new_search = true;
+				if (firstarg) {
+					printgreeting(argc, argv, lookup);
+					firstarg = false;
+				}
+				ISC_LIST_APPEND(lookup_list, lookup, link);
+				debug("looking up %s", lookup->textname);
+			}
+			/* XXX Error message */
+		}
+	}
+
+	/*
+	 * If we have a batchfile, seed the lookup list with the
+	 * first entry, then trust the callback in dighost_shutdown
+	 * to get the rest
+	 */
+	char *filename = (char *)atomic_load(&batchname);
+	if ((filename != NULL) && !(is_batchfile)) {
+		if (strcmp(filename, "-") == 0) {
+			batchfp = stdin;
+		} else {
+			batchfp = fopen(filename, "r");
+		}
+		if (batchfp == NULL) {
+			perror(filename);
+			if (exitcode < 8) {
+				exitcode = 8;
+			}
+			fatal("couldn't open specified batch file");
+		}
+		/* XXX Remove code dup from shutdown code */
+	next_line:
+		if (fgets(batchline, sizeof(batchline), batchfp) != 0) {
+			debug("batch line %s", batchline);
+			if (batchline[0] == '\r' || batchline[0] == '\n' ||
+			    batchline[0] == '#' || batchline[0] == ';')
+			{
+				goto next_line;
+			}
+			bargc = split_batchline(batchline, bargv, 14,
+						"batch argv");
+			bargv[0] = argv[0];
+			argv0 = argv[0];
+			parse_args(true, false, bargc, (char **)bargv);
+			return;
+		}
+		return;
+	}
+	/*
+	 * If no lookup specified, search for root
+	 */
+	if ((lookup_list.head == NULL) && !config_only) {
+		if (need_clone) {
+			lookup = clone_lookup(default_lookup, true);
+		}
+		need_clone = true;
+		lookup->trace_root = (lookup->trace || lookup->ns_search_only);
+		lookup->new_search = true;
+		strlcpy(lookup->textname, ".", sizeof(lookup->textname));
+		lookup->rdtype = dns_rdatatype_ns;
+		lookup->rdtypeset = true;
+		if (firstarg) {
+			printgreeting(argc, argv, lookup);
+			firstarg = false;
+		}
+		ISC_LIST_APPEND(lookup_list, lookup, link);
+	}
+	if (!need_clone) {
+		destroy_lookup(lookup);
+	}
+}
+
+/*
+ * Callback from dighost.c to allow program-specific shutdown code.
+ * Here, we're possibly reading from a batch file, then shutting down
+ * for real if there's nothing in the batch file to read.
+ */
+static void
+query_finished(void) {
+	char batchline[MXNAME];
+	int bargc;
+	char *bargv[16];
+
+	if (atomic_load(&batchname) == 0) {
+		isc_app_shutdown();
+		return;
+	}
+
+	fflush(stdout);
+	if (feof(batchfp)) {
+		atomic_store(&batchname, 0);
+		isc_app_shutdown();
+		if (batchfp != stdin) {
+			fclose(batchfp);
+		}
+		return;
+	}
+
+	if (fgets(batchline, sizeof(batchline), batchfp) != 0) {
+		debug("batch line %s", batchline);
+		bargc = split_batchline(batchline, bargv, 14, "batch argv");
+		bargv[0] = argv0;
+		parse_args(true, false, bargc, (char **)bargv);
+		start_lookup();
+	} else {
+		atomic_store(&batchname, 0);
+		if (batchfp != stdin) {
+			fclose(batchfp);
+		}
+		isc_app_shutdown();
+		return;
+	}
+}
+
+static void
+dig_error(const char *format, ...) {
+	va_list args;
+
+	if (yaml) {
+		printf("-\n");
+		printf("  type: DIG_ERROR\n");
+
+		/*
+		 * Print an indent before a literal block quote.
+		 * Note: this will break if used to print more than
+		 * one line of text as only the first line would be
+		 * indented.
+		 */
+		printf("  message: |\n");
+		printf("    ");
+	} else {
+		printf(";; ");
+	}
+
+	va_start(args, format);
+	vprintf(format, args);
+	va_end(args);
+
+	if (!yaml) {
+		printf("\n");
+	}
+}
+
+static void
+dig_warning(const char *format, ...) {
+	va_list args;
+
+	if (!yaml) {
+		printf(";; ");
+
+		va_start(args, format);
+		vprintf(format, args);
+		va_end(args);
+
+		printf("\n");
+	}
+}
+
+static void
+dig_comments(dig_lookup_t *lookup, const char *format, ...) {
+	va_list args;
+
+	if (lookup->comments && !yaml) {
+		printf(";; ");
+
+		va_start(args, format);
+		vprintf(format, args);
+		va_end(args);
+
+		printf("\n");
+	}
+}
+
+void
+dig_setup(int argc, char **argv) {
+	isc_result_t result;
+
+	ISC_LIST_INIT(lookup_list);
+	ISC_LIST_INIT(server_list);
+	ISC_LIST_INIT(search_list);
+
+	debug("dig_setup()");
+
+	/* setup dighost callbacks */
+	dighost_printmessage = printmessage;
+	dighost_received = received;
+	dighost_trying = trying;
+	dighost_shutdown = query_finished;
+	dighost_error = dig_error;
+	dighost_warning = dig_warning;
+	dighost_comments = dig_comments;
+
+	progname = argv[0];
+	preparse_args(argc, argv);
+
+	result = isc_app_start();
+	check_result(result, "isc_app_start");
+
+	setup_libs();
+	setup_system(ipv4only, ipv6only);
+}
+
+void
+dig_query_setup(bool is_batchfile, bool config_only, int argc, char **argv) {
+	debug("dig_query_setup");
+
+	parse_args(is_batchfile, config_only, argc, argv);
+	if (keyfile[0] != 0) {
+		setup_file_key();
+	} else if (keysecret[0] != 0) {
+		setup_text_key();
+	}
+	if (domainopt[0] != '\0') {
+		set_search_domain(domainopt);
+		usesearch = true;
+	}
+}
+
+void
+dig_startup() {
+	isc_result_t result;
+
+	debug("dig_startup()");
+
+	result = isc_app_onrun(mctx, global_task, onrun_callback, NULL);
+	check_result(result, "isc_app_onrun");
+	isc_app_run();
+}
+
+void
+dig_query_start() {
+	start_lookup();
+}
+
+void
+dig_shutdown() {
+	destroy_lookup(default_lookup);
+	if (atomic_load(&batchname) != 0) {
+		if (batchfp != stdin) {
+			fclose(batchfp);
+		}
+		atomic_store(&batchname, 0);
+	}
+	cancel_all();
+	destroy_libs();
+	isc_app_finish();
+}
+
+/*% Main processing routine for dig */
+int
+main(int argc, char **argv) {
+	dig_setup(argc, argv);
+	dig_query_setup(false, false, argc, argv);
+	dig_startup();
+	dig_shutdown();
+
+	return (exitcode);
+}