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-rw-r--r--bin/dig/nslookup.c891
1 files changed, 891 insertions, 0 deletions
diff --git a/bin/dig/nslookup.c b/bin/dig/nslookup.c
new file mode 100644
index 0000000..3327c6e
--- /dev/null
+++ b/bin/dig/nslookup.c
@@ -0,0 +1,891 @@
+/*
+ * Copyright (C) 2004-2007 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2000-2003 Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $Id: nslookup.c,v 1.101.18.15 2007/08/28 07:19:55 tbox Exp $ */
+
+#include <config.h>
+
+#include <stdlib.h>
+
+#include <isc/app.h>
+#include <isc/buffer.h>
+#include <isc/commandline.h>
+#include <isc/event.h>
+#include <isc/parseint.h>
+#include <isc/string.h>
+#include <isc/timer.h>
+#include <isc/util.h>
+#include <isc/task.h>
+#include <isc/netaddr.h>
+
+#include <dns/message.h>
+#include <dns/name.h>
+#include <dns/fixedname.h>
+#include <dns/rdata.h>
+#include <dns/rdataclass.h>
+#include <dns/rdataset.h>
+#include <dns/rdatastruct.h>
+#include <dns/rdatatype.h>
+#include <dns/byaddr.h>
+
+#include <dig/dig.h>
+
+static isc_boolean_t short_form = ISC_TRUE,
+ tcpmode = ISC_FALSE,
+ identify = ISC_FALSE, stats = ISC_TRUE,
+ comments = ISC_TRUE, section_question = ISC_TRUE,
+ section_answer = ISC_TRUE, section_authority = ISC_TRUE,
+ section_additional = ISC_TRUE, recurse = ISC_TRUE,
+ aaonly = ISC_FALSE, nofail = ISC_TRUE;
+
+static isc_boolean_t in_use = ISC_FALSE;
+static char defclass[MXRD] = "IN";
+static char deftype[MXRD] = "A";
+static isc_event_t *global_event = NULL;
+
+static char domainopt[DNS_NAME_MAXTEXT];
+
+static const char *rcodetext[] = {
+ "NOERROR",
+ "FORMERR",
+ "SERVFAIL",
+ "NXDOMAIN",
+ "NOTIMP",
+ "REFUSED",
+ "YXDOMAIN",
+ "YXRRSET",
+ "NXRRSET",
+ "NOTAUTH",
+ "NOTZONE",
+ "RESERVED11",
+ "RESERVED12",
+ "RESERVED13",
+ "RESERVED14",
+ "RESERVED15",
+ "BADVERS"
+};
+
+static const char *rtypetext[] = {
+ "rtype_0 = ", /* 0 */
+ "internet address = ", /* 1 */
+ "nameserver = ", /* 2 */
+ "md = ", /* 3 */
+ "mf = ", /* 4 */
+ "canonical name = ", /* 5 */
+ "soa = ", /* 6 */
+ "mb = ", /* 7 */
+ "mg = ", /* 8 */
+ "mr = ", /* 9 */
+ "rtype_10 = ", /* 10 */
+ "protocol = ", /* 11 */
+ "name = ", /* 12 */
+ "hinfo = ", /* 13 */
+ "minfo = ", /* 14 */
+ "mail exchanger = ", /* 15 */
+ "text = ", /* 16 */
+ "rp = ", /* 17 */
+ "afsdb = ", /* 18 */
+ "x25 address = ", /* 19 */
+ "isdn address = ", /* 20 */
+ "rt = ", /* 21 */
+ "nsap = ", /* 22 */
+ "nsap_ptr = ", /* 23 */
+ "signature = ", /* 24 */
+ "key = ", /* 25 */
+ "px = ", /* 26 */
+ "gpos = ", /* 27 */
+ "has AAAA address ", /* 28 */
+ "loc = ", /* 29 */
+ "next = ", /* 30 */
+ "rtype_31 = ", /* 31 */
+ "rtype_32 = ", /* 32 */
+ "service = ", /* 33 */
+ "rtype_34 = ", /* 34 */
+ "naptr = ", /* 35 */
+ "kx = ", /* 36 */
+ "cert = ", /* 37 */
+ "v6 address = ", /* 38 */
+ "dname = ", /* 39 */
+ "rtype_40 = ", /* 40 */
+ "optional = " /* 41 */
+};
+
+#define N_KNOWN_RRTYPES (sizeof(rtypetext) / sizeof(rtypetext[0]))
+
+static void flush_lookup_list(void);
+static void getinput(isc_task_t *task, isc_event_t *event);
+
+void
+dighost_shutdown(void) {
+ isc_event_t *event = global_event;
+
+ flush_lookup_list();
+ debug("dighost_shutdown()");
+
+ if (!in_use) {
+ isc_app_shutdown();
+ return;
+ }
+
+ isc_task_send(global_task, &event);
+}
+
+static void
+printsoa(dns_rdata_t *rdata) {
+ dns_rdata_soa_t soa;
+ isc_result_t result;
+ char namebuf[DNS_NAME_FORMATSIZE];
+
+ result = dns_rdata_tostruct(rdata, &soa, NULL);
+ check_result(result, "dns_rdata_tostruct");
+
+ dns_name_format(&soa.origin, namebuf, sizeof(namebuf));
+ printf("\torigin = %s\n", namebuf);
+ dns_name_format(&soa.contact, namebuf, sizeof(namebuf));
+ printf("\tmail addr = %s\n", namebuf);
+ printf("\tserial = %u\n", soa.serial);
+ printf("\trefresh = %u\n", soa.refresh);
+ printf("\tretry = %u\n", soa.retry);
+ printf("\texpire = %u\n", soa.expire);
+ printf("\tminimum = %u\n", soa.minimum);
+ dns_rdata_freestruct(&soa);
+}
+
+static void
+printa(dns_rdata_t *rdata) {
+ isc_result_t result;
+ char text[sizeof("255.255.255.255")];
+ isc_buffer_t b;
+
+ isc_buffer_init(&b, text, sizeof(text));
+ result = dns_rdata_totext(rdata, NULL, &b);
+ check_result(result, "dns_rdata_totext");
+ printf("Address: %.*s\n", (int)isc_buffer_usedlength(&b),
+ (char *)isc_buffer_base(&b));
+}
+#ifdef DIG_SIGCHASE
+/* Just for compatibility : not use in host program */
+isc_result_t
+printrdataset(dns_name_t *owner_name, dns_rdataset_t *rdataset,
+ isc_buffer_t *target)
+{
+ UNUSED(owner_name);
+ UNUSED(rdataset);
+ UNUSED(target);
+ return(ISC_FALSE);
+}
+#endif
+static void
+printrdata(dns_rdata_t *rdata) {
+ isc_result_t result;
+ isc_buffer_t *b = NULL;
+ unsigned int size = 1024;
+ isc_boolean_t done = ISC_FALSE;
+
+ if (rdata->type < N_KNOWN_RRTYPES)
+ printf("%s", rtypetext[rdata->type]);
+ else
+ printf("rdata_%d = ", rdata->type);
+
+ while (!done) {
+ result = isc_buffer_allocate(mctx, &b, size);
+ if (result != ISC_R_SUCCESS)
+ check_result(result, "isc_buffer_allocate");
+ result = dns_rdata_totext(rdata, NULL, b);
+ if (result == ISC_R_SUCCESS) {
+ printf("%.*s\n", (int)isc_buffer_usedlength(b),
+ (char *)isc_buffer_base(b));
+ done = ISC_TRUE;
+ } else if (result != ISC_R_NOSPACE)
+ check_result(result, "dns_rdata_totext");
+ isc_buffer_free(&b);
+ size *= 2;
+ }
+}
+
+static isc_result_t
+printsection(dig_query_t *query, dns_message_t *msg, isc_boolean_t headers,
+ dns_section_t section) {
+ isc_result_t result, loopresult;
+ dns_name_t *name;
+ dns_rdataset_t *rdataset = NULL;
+ dns_rdata_t rdata = DNS_RDATA_INIT;
+ char namebuf[DNS_NAME_FORMATSIZE];
+
+ UNUSED(query);
+ UNUSED(headers);
+
+ debug("printsection()");
+
+ result = dns_message_firstname(msg, section);
+ if (result == ISC_R_NOMORE)
+ return (ISC_R_SUCCESS);
+ else if (result != ISC_R_SUCCESS)
+ return (result);
+ for (;;) {
+ name = NULL;
+ dns_message_currentname(msg, section,
+ &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);
+ switch (rdata.type) {
+ case dns_rdatatype_a:
+ if (section != DNS_SECTION_ANSWER)
+ goto def_short_section;
+ dns_name_format(name, namebuf,
+ sizeof(namebuf));
+ printf("Name:\t%s\n", namebuf);
+ printa(&rdata);
+ break;
+ case dns_rdatatype_soa:
+ dns_name_format(name, namebuf,
+ sizeof(namebuf));
+ printf("%s\n", namebuf);
+ printsoa(&rdata);
+ break;
+ default:
+ def_short_section:
+ dns_name_format(name, namebuf,
+ sizeof(namebuf));
+ printf("%s\t", namebuf);
+ printrdata(&rdata);
+ break;
+ }
+ dns_rdata_reset(&rdata);
+ loopresult = dns_rdataset_next(rdataset);
+ }
+ }
+ result = dns_message_nextname(msg, section);
+ if (result == ISC_R_NOMORE)
+ break;
+ else if (result != ISC_R_SUCCESS) {
+ return (result);
+ }
+ }
+ return (ISC_R_SUCCESS);
+}
+
+static isc_result_t
+detailsection(dig_query_t *query, dns_message_t *msg, isc_boolean_t headers,
+ dns_section_t section) {
+ isc_result_t result, loopresult;
+ dns_name_t *name;
+ dns_rdataset_t *rdataset = NULL;
+ dns_rdata_t rdata = DNS_RDATA_INIT;
+ char namebuf[DNS_NAME_FORMATSIZE];
+
+ UNUSED(query);
+
+ debug("detailsection()");
+
+ if (headers) {
+ switch (section) {
+ case DNS_SECTION_QUESTION:
+ puts(" QUESTIONS:");
+ break;
+ case DNS_SECTION_ANSWER:
+ puts(" ANSWERS:");
+ break;
+ case DNS_SECTION_AUTHORITY:
+ puts(" AUTHORITY RECORDS:");
+ break;
+ case DNS_SECTION_ADDITIONAL:
+ puts(" ADDITIONAL RECORDS:");
+ break;
+ }
+ }
+
+ result = dns_message_firstname(msg, section);
+ if (result == ISC_R_NOMORE)
+ return (ISC_R_SUCCESS);
+ else if (result != ISC_R_SUCCESS)
+ return (result);
+ for (;;) {
+ name = NULL;
+ dns_message_currentname(msg, section,
+ &name);
+ for (rdataset = ISC_LIST_HEAD(name->list);
+ rdataset != NULL;
+ rdataset = ISC_LIST_NEXT(rdataset, link)) {
+ if (section == DNS_SECTION_QUESTION) {
+ dns_name_format(name, namebuf,
+ sizeof(namebuf));
+ printf("\t%s, ", namebuf);
+ dns_rdatatype_format(rdataset->type,
+ namebuf,
+ sizeof(namebuf));
+ printf("type = %s, ", namebuf);
+ dns_rdataclass_format(rdataset->rdclass,
+ namebuf,
+ sizeof(namebuf));
+ printf("class = %s\n", namebuf);
+ }
+ loopresult = dns_rdataset_first(rdataset);
+ while (loopresult == ISC_R_SUCCESS) {
+ dns_rdataset_current(rdataset, &rdata);
+
+ dns_name_format(name, namebuf,
+ sizeof(namebuf));
+ printf(" -> %s\n", namebuf);
+
+ switch (rdata.type) {
+ case dns_rdatatype_soa:
+ printsoa(&rdata);
+ break;
+ default:
+ printf("\t");
+ printrdata(&rdata);
+ }
+ dns_rdata_reset(&rdata);
+ loopresult = dns_rdataset_next(rdataset);
+ }
+ }
+ result = dns_message_nextname(msg, section);
+ if (result == ISC_R_NOMORE)
+ break;
+ else if (result != ISC_R_SUCCESS) {
+ return (result);
+ }
+ }
+ return (ISC_R_SUCCESS);
+}
+
+void
+received(int bytes, isc_sockaddr_t *from, dig_query_t *query)
+{
+ UNUSED(bytes);
+ UNUSED(from);
+ UNUSED(query);
+}
+
+void
+trying(char *frm, dig_lookup_t *lookup) {
+ UNUSED(frm);
+ UNUSED(lookup);
+
+}
+
+isc_result_t
+printmessage(dig_query_t *query, dns_message_t *msg, isc_boolean_t headers) {
+ char servtext[ISC_SOCKADDR_FORMATSIZE];
+
+ debug("printmessage()");
+
+ isc_sockaddr_format(&query->sockaddr, servtext, sizeof(servtext));
+ printf("Server:\t\t%s\n", query->userarg);
+ printf("Address:\t%s\n", servtext);
+
+ puts("");
+
+ if (!short_form) {
+ isc_boolean_t headers = ISC_TRUE;
+ puts("------------");
+ /* detailheader(query, msg);*/
+ detailsection(query, msg, headers, DNS_SECTION_QUESTION);
+ detailsection(query, msg, headers, DNS_SECTION_ANSWER);
+ detailsection(query, msg, headers, DNS_SECTION_AUTHORITY);
+ detailsection(query, msg, headers, DNS_SECTION_ADDITIONAL);
+ puts("------------");
+ }
+
+ if (msg->rcode != 0) {
+ char nametext[DNS_NAME_FORMATSIZE];
+ dns_name_format(query->lookup->name,
+ nametext, sizeof(nametext));
+ printf("** server can't find %s: %s\n",
+ (msg->rcode != dns_rcode_nxdomain) ? nametext :
+ query->lookup->textname, rcodetext[msg->rcode]);
+ debug("returning with rcode == 0");
+ return (ISC_R_SUCCESS);
+ }
+
+ if ((msg->flags & DNS_MESSAGEFLAG_AA) == 0)
+ puts("Non-authoritative answer:");
+ if (!ISC_LIST_EMPTY(msg->sections[DNS_SECTION_ANSWER]))
+ printsection(query, msg, headers, DNS_SECTION_ANSWER);
+ else
+ printf("*** Can't find %s: No answer\n",
+ query->lookup->textname);
+
+ if (((msg->flags & DNS_MESSAGEFLAG_AA) == 0) &&
+ (query->lookup->rdtype != dns_rdatatype_a)) {
+ puts("\nAuthoritative answers can be found from:");
+ printsection(query, msg, headers,
+ DNS_SECTION_AUTHORITY);
+ printsection(query, msg, headers,
+ DNS_SECTION_ADDITIONAL);
+ }
+ return (ISC_R_SUCCESS);
+}
+
+static void
+show_settings(isc_boolean_t full, isc_boolean_t serv_only) {
+ dig_server_t *srv;
+ isc_sockaddr_t sockaddr;
+ dig_searchlist_t *listent;
+
+ srv = ISC_LIST_HEAD(server_list);
+
+ while (srv != NULL) {
+ char sockstr[ISC_SOCKADDR_FORMATSIZE];
+
+ get_address(srv->servername, port, &sockaddr);
+ isc_sockaddr_format(&sockaddr, sockstr, sizeof(sockstr));
+ printf("Default server: %s\nAddress: %s\n",
+ srv->userarg, sockstr);
+ if (!full)
+ return;
+ srv = ISC_LIST_NEXT(srv, link);
+ }
+ if (serv_only)
+ return;
+ printf("\nSet options:\n");
+ printf(" %s\t\t\t%s\t\t%s\n",
+ tcpmode ? "vc" : "novc",
+ short_form ? "nodebug" : "debug",
+ debugging ? "d2" : "nod2");
+ printf(" %s\t\t%s\n",
+ usesearch ? "search" : "nosearch",
+ recurse ? "recurse" : "norecurse");
+ printf(" timeout = %d\t\tretry = %d\tport = %d\n",
+ timeout, tries, port);
+ printf(" querytype = %-8s\tclass = %s\n", deftype, defclass);
+ printf(" srchlist = ");
+ for (listent = ISC_LIST_HEAD(search_list);
+ listent != NULL;
+ listent = ISC_LIST_NEXT(listent, link)) {
+ printf("%s", listent->origin);
+ if (ISC_LIST_NEXT(listent, link) != NULL)
+ printf("/");
+ }
+ printf("\n");
+}
+
+static isc_boolean_t
+testtype(char *typetext) {
+ isc_result_t result;
+ isc_textregion_t tr;
+ dns_rdatatype_t rdtype;
+
+ tr.base = typetext;
+ tr.length = strlen(typetext);
+ result = dns_rdatatype_fromtext(&rdtype, &tr);
+ if (result == ISC_R_SUCCESS)
+ return (ISC_TRUE);
+ else {
+ printf("unknown query type: %s\n", typetext);
+ return (ISC_FALSE);
+ }
+}
+
+static isc_boolean_t
+testclass(char *typetext) {
+ isc_result_t result;
+ isc_textregion_t tr;
+ dns_rdataclass_t rdclass;
+
+ tr.base = typetext;
+ tr.length = strlen(typetext);
+ result = dns_rdataclass_fromtext(&rdclass, &tr);
+ if (result == ISC_R_SUCCESS)
+ return (ISC_TRUE);
+ else {
+ printf("unknown query class: %s\n", typetext);
+ return (ISC_FALSE);
+ }
+}
+
+static void
+safecpy(char *dest, char *src, int size) {
+ strncpy(dest, src, size);
+ dest[size-1] = 0;
+}
+
+static isc_result_t
+parse_uint(isc_uint32_t *uip, const char *value, isc_uint32_t max,
+ const char *desc) {
+ isc_uint32_t n;
+ isc_result_t result = isc_parse_uint32(&n, value, 10);
+ if (result == ISC_R_SUCCESS && n > max)
+ result = ISC_R_RANGE;
+ if (result != ISC_R_SUCCESS) {
+ printf("invalid %s '%s': %s\n", desc,
+ value, isc_result_totext(result));
+ return result;
+ }
+ *uip = n;
+ return (ISC_R_SUCCESS);
+}
+
+static void
+set_port(const char *value) {
+ isc_uint32_t n;
+ isc_result_t result = parse_uint(&n, value, 65535, "port");
+ if (result == ISC_R_SUCCESS)
+ port = (isc_uint16_t) n;
+}
+
+static void
+set_timeout(const char *value) {
+ isc_uint32_t n;
+ isc_result_t result = parse_uint(&n, value, UINT_MAX, "timeout");
+ if (result == ISC_R_SUCCESS)
+ timeout = n;
+}
+
+static void
+set_tries(const char *value) {
+ isc_uint32_t n;
+ isc_result_t result = parse_uint(&n, value, INT_MAX, "tries");
+ if (result == ISC_R_SUCCESS)
+ tries = n;
+}
+
+static void
+setoption(char *opt) {
+ if (strncasecmp(opt, "all", 4) == 0) {
+ show_settings(ISC_TRUE, ISC_FALSE);
+ } else if (strncasecmp(opt, "class=", 6) == 0) {
+ if (testclass(&opt[6]))
+ safecpy(defclass, &opt[6], sizeof(defclass));
+ } else if (strncasecmp(opt, "cl=", 3) == 0) {
+ if (testclass(&opt[3]))
+ safecpy(defclass, &opt[3], sizeof(defclass));
+ } else if (strncasecmp(opt, "type=", 5) == 0) {
+ if (testtype(&opt[5]))
+ safecpy(deftype, &opt[5], sizeof(deftype));
+ } else if (strncasecmp(opt, "ty=", 3) == 0) {
+ if (testtype(&opt[3]))
+ safecpy(deftype, &opt[3], sizeof(deftype));
+ } else if (strncasecmp(opt, "querytype=", 10) == 0) {
+ if (testtype(&opt[10]))
+ safecpy(deftype, &opt[10], sizeof(deftype));
+ } else if (strncasecmp(opt, "query=", 6) == 0) {
+ if (testtype(&opt[6]))
+ safecpy(deftype, &opt[6], sizeof(deftype));
+ } else if (strncasecmp(opt, "qu=", 3) == 0) {
+ if (testtype(&opt[3]))
+ safecpy(deftype, &opt[3], sizeof(deftype));
+ } else if (strncasecmp(opt, "q=", 2) == 0) {
+ if (testtype(&opt[2]))
+ safecpy(deftype, &opt[2], sizeof(deftype));
+ } else if (strncasecmp(opt, "domain=", 7) == 0) {
+ safecpy(domainopt, &opt[7], sizeof(domainopt));
+ set_search_domain(domainopt);
+ usesearch = ISC_TRUE;
+ } else if (strncasecmp(opt, "do=", 3) == 0) {
+ safecpy(domainopt, &opt[3], sizeof(domainopt));
+ set_search_domain(domainopt);
+ usesearch = ISC_TRUE;
+ } else if (strncasecmp(opt, "port=", 5) == 0) {
+ set_port(&opt[5]);
+ } else if (strncasecmp(opt, "po=", 3) == 0) {
+ set_port(&opt[3]);
+ } else if (strncasecmp(opt, "timeout=", 8) == 0) {
+ set_timeout(&opt[8]);
+ } else if (strncasecmp(opt, "t=", 2) == 0) {
+ set_timeout(&opt[2]);
+ } else if (strncasecmp(opt, "rec", 3) == 0) {
+ recurse = ISC_TRUE;
+ } else if (strncasecmp(opt, "norec", 5) == 0) {
+ recurse = ISC_FALSE;
+ } else if (strncasecmp(opt, "retry=", 6) == 0) {
+ set_tries(&opt[6]);
+ } else if (strncasecmp(opt, "ret=", 4) == 0) {
+ set_tries(&opt[4]);
+ } else if (strncasecmp(opt, "def", 3) == 0) {
+ usesearch = ISC_TRUE;
+ } else if (strncasecmp(opt, "nodef", 5) == 0) {
+ usesearch = ISC_FALSE;
+ } else if (strncasecmp(opt, "vc", 3) == 0) {
+ tcpmode = ISC_TRUE;
+ } else if (strncasecmp(opt, "novc", 5) == 0) {
+ tcpmode = ISC_FALSE;
+ } else if (strncasecmp(opt, "deb", 3) == 0) {
+ short_form = ISC_FALSE;
+ showsearch = ISC_TRUE;
+ } else if (strncasecmp(opt, "nodeb", 5) == 0) {
+ short_form = ISC_TRUE;
+ showsearch = ISC_FALSE;
+ } else if (strncasecmp(opt, "d2", 2) == 0) {
+ debugging = ISC_TRUE;
+ } else if (strncasecmp(opt, "nod2", 4) == 0) {
+ debugging = ISC_FALSE;
+ } else if (strncasecmp(opt, "search", 3) == 0) {
+ usesearch = ISC_TRUE;
+ } else if (strncasecmp(opt, "nosearch", 5) == 0) {
+ usesearch = ISC_FALSE;
+ } else if (strncasecmp(opt, "sil", 3) == 0) {
+ /* deprecation_msg = ISC_FALSE; */
+ } else if (strncasecmp(opt, "fail", 3) == 0) {
+ nofail=ISC_FALSE;
+ } else if (strncasecmp(opt, "nofail", 3) == 0) {
+ nofail=ISC_TRUE;
+ } else {
+ printf("*** Invalid option: %s\n", opt);
+ }
+}
+
+static void
+addlookup(char *opt) {
+ dig_lookup_t *lookup;
+ isc_result_t result;
+ isc_textregion_t tr;
+ dns_rdatatype_t rdtype;
+ dns_rdataclass_t rdclass;
+ char store[MXNAME];
+
+ debug("addlookup()");
+ tr.base = deftype;
+ tr.length = strlen(deftype);
+ result = dns_rdatatype_fromtext(&rdtype, &tr);
+ if (result != ISC_R_SUCCESS) {
+ printf("unknown query type: %s\n", deftype);
+ rdclass = dns_rdatatype_a;
+ }
+ tr.base = defclass;
+ tr.length = strlen(defclass);
+ result = dns_rdataclass_fromtext(&rdclass, &tr);
+ if (result != ISC_R_SUCCESS) {
+ printf("unknown query class: %s\n", defclass);
+ rdclass = dns_rdataclass_in;
+ }
+ lookup = make_empty_lookup();
+ if (get_reverse(store, sizeof(store), opt, lookup->ip6_int, ISC_TRUE)
+ == ISC_R_SUCCESS) {
+ safecpy(lookup->textname, store, sizeof(lookup->textname));
+ lookup->rdtype = dns_rdatatype_ptr;
+ lookup->rdtypeset = ISC_TRUE;
+ } else {
+ safecpy(lookup->textname, opt, sizeof(lookup->textname));
+ lookup->rdtype = rdtype;
+ lookup->rdtypeset = ISC_TRUE;
+ }
+ lookup->rdclass = rdclass;
+ lookup->rdclassset = ISC_TRUE;
+ lookup->trace = ISC_FALSE;
+ lookup->trace_root = lookup->trace;
+ lookup->ns_search_only = ISC_FALSE;
+ lookup->identify = identify;
+ lookup->recurse = recurse;
+ lookup->aaonly = aaonly;
+ lookup->retries = tries;
+ lookup->udpsize = 0;
+ lookup->comments = comments;
+ lookup->tcp_mode = tcpmode;
+ lookup->stats = stats;
+ lookup->section_question = section_question;
+ lookup->section_answer = section_answer;
+ lookup->section_authority = section_authority;
+ lookup->section_additional = section_additional;
+ lookup->new_search = ISC_TRUE;
+ if (nofail)
+ lookup->servfail_stops = ISC_FALSE;
+ ISC_LIST_INIT(lookup->q);
+ ISC_LINK_INIT(lookup, link);
+ ISC_LIST_APPEND(lookup_list, lookup, link);
+ lookup->origin = NULL;
+ ISC_LIST_INIT(lookup->my_server_list);
+ debug("looking up %s", lookup->textname);
+}
+
+static void
+get_next_command(void) {
+ char *buf;
+ char *ptr, *arg;
+ char *input;
+
+ fflush(stdout);
+ buf = isc_mem_allocate(mctx, COMMSIZE);
+ if (buf == NULL)
+ fatal("memory allocation failure");
+ fputs("> ", stderr);
+ fflush(stderr);
+ isc_app_block();
+ ptr = fgets(buf, COMMSIZE, stdin);
+ isc_app_unblock();
+ if (ptr == NULL) {
+ in_use = ISC_FALSE;
+ goto cleanup;
+ }
+ input = buf;
+ ptr = next_token(&input, " \t\r\n");
+ if (ptr == NULL)
+ goto cleanup;
+ arg = next_token(&input, " \t\r\n");
+ if ((strcasecmp(ptr, "set") == 0) &&
+ (arg != NULL))
+ setoption(arg);
+ else if ((strcasecmp(ptr, "server") == 0) ||
+ (strcasecmp(ptr, "lserver") == 0)) {
+ isc_app_block();
+ set_nameserver(arg);
+ check_ra = ISC_FALSE;
+ isc_app_unblock();
+ show_settings(ISC_TRUE, ISC_TRUE);
+ } else if (strcasecmp(ptr, "exit") == 0) {
+ in_use = ISC_FALSE;
+ goto cleanup;
+ } else if (strcasecmp(ptr, "help") == 0 ||
+ strcasecmp(ptr, "?") == 0) {
+ printf("The '%s' command is not yet implemented.\n", ptr);
+ goto cleanup;
+ } else if (strcasecmp(ptr, "finger") == 0 ||
+ strcasecmp(ptr, "root") == 0 ||
+ strcasecmp(ptr, "ls") == 0 ||
+ strcasecmp(ptr, "view") == 0) {
+ printf("The '%s' command is not implemented.\n", ptr);
+ goto cleanup;
+ } else
+ addlookup(ptr);
+ cleanup:
+ isc_mem_free(mctx, buf);
+}
+
+static void
+parse_args(int argc, char **argv) {
+ isc_boolean_t have_lookup = ISC_FALSE;
+
+ usesearch = ISC_TRUE;
+ for (argc--, argv++; argc > 0; argc--, argv++) {
+ debug("main parsing %s", argv[0]);
+ if (argv[0][0] == '-') {
+ if (argv[0][1] != 0)
+ setoption(&argv[0][1]);
+ else
+ have_lookup = ISC_TRUE;
+ } else {
+ if (!have_lookup) {
+ have_lookup = ISC_TRUE;
+ in_use = ISC_TRUE;
+ addlookup(argv[0]);
+ } else {
+ set_nameserver(argv[0]);
+ check_ra = ISC_FALSE;
+ }
+ }
+ }
+}
+
+static void
+flush_lookup_list(void) {
+ dig_lookup_t *l, *lp;
+ dig_query_t *q, *qp;
+ dig_server_t *s, *sp;
+
+ lookup_counter = 0;
+ l = ISC_LIST_HEAD(lookup_list);
+ while (l != NULL) {
+ q = ISC_LIST_HEAD(l->q);
+ while (q != NULL) {
+ if (q->sock != NULL) {
+ isc_socket_cancel(q->sock, NULL,
+ ISC_SOCKCANCEL_ALL);
+ isc_socket_detach(&q->sock);
+ }
+ if (ISC_LINK_LINKED(&q->recvbuf, link))
+ ISC_LIST_DEQUEUE(q->recvlist, &q->recvbuf,
+ link);
+ if (ISC_LINK_LINKED(&q->lengthbuf, link))
+ ISC_LIST_DEQUEUE(q->lengthlist, &q->lengthbuf,
+ link);
+ isc_buffer_invalidate(&q->recvbuf);
+ isc_buffer_invalidate(&q->lengthbuf);
+ qp = q;
+ q = ISC_LIST_NEXT(q, link);
+ ISC_LIST_DEQUEUE(l->q, qp, link);
+ isc_mem_free(mctx, qp);
+ }
+ s = ISC_LIST_HEAD(l->my_server_list);
+ while (s != NULL) {
+ sp = s;
+ s = ISC_LIST_NEXT(s, link);
+ ISC_LIST_DEQUEUE(l->my_server_list, sp, link);
+ isc_mem_free(mctx, sp);
+
+ }
+ if (l->sendmsg != NULL)
+ dns_message_destroy(&l->sendmsg);
+ if (l->timer != NULL)
+ isc_timer_detach(&l->timer);
+ lp = l;
+ l = ISC_LIST_NEXT(l, link);
+ ISC_LIST_DEQUEUE(lookup_list, lp, link);
+ isc_mem_free(mctx, lp);
+ }
+}
+
+static void
+getinput(isc_task_t *task, isc_event_t *event) {
+ UNUSED(task);
+ if (global_event == NULL)
+ global_event = event;
+ while (in_use) {
+ get_next_command();
+ if (ISC_LIST_HEAD(lookup_list) != NULL) {
+ start_lookup();
+ return;
+ }
+ }
+ isc_app_shutdown();
+}
+
+int
+main(int argc, char **argv) {
+ isc_result_t result;
+
+ ISC_LIST_INIT(lookup_list);
+ ISC_LIST_INIT(server_list);
+ ISC_LIST_INIT(search_list);
+
+ check_ra = ISC_TRUE;
+
+ result = isc_app_start();
+ check_result(result, "isc_app_start");
+
+ setup_libs();
+ progname = argv[0];
+
+ parse_args(argc, argv);
+
+ setup_system();
+ if (domainopt[0] != '\0')
+ set_search_domain(domainopt);
+ if (in_use)
+ result = isc_app_onrun(mctx, global_task, onrun_callback,
+ NULL);
+ else
+ result = isc_app_onrun(mctx, global_task, getinput, NULL);
+ check_result(result, "isc_app_onrun");
+ in_use = ISC_TF(!in_use);
+
+ (void)isc_app_run();
+
+ puts("");
+ debug("done, and starting to shut down");
+ if (global_event != NULL)
+ isc_event_free(&global_event);
+ cancel_all();
+ destroy_libs();
+ isc_app_finish();
+
+ return (0);
+}
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