genreport.c 87.6 KB
Newer Older
Mark Andrews's avatar
Mark Andrews committed
1
/*
Mark Andrews's avatar
Mark Andrews committed
2
 * Copyright (C) 2016, 2017  Internet Systems Consortium, Inc. ("ISC")
Mark Andrews's avatar
Mark Andrews committed
3 4 5 6 7 8
 *
 * 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 http://mozilla.org/MPL/2.0/.
 */

9 10
#define FD_SETSIZE 1600

11 12
#include <config.h>

Mark Andrews's avatar
Mark Andrews committed
13 14
#define __FAVOR_BSD 1

Mark Andrews's avatar
Mark Andrews committed
15
#include <stdio.h>
Mark Andrews's avatar
Mark Andrews committed
16 17
#include <string.h>
#include <stdlib.h>
18
#include <stddef.h>
Mark Andrews's avatar
Mark Andrews committed
19
#include <unistd.h>
Mark Andrews's avatar
Mark Andrews committed
20
#include <assert.h>
21
#include <ctype.h>
Mark Andrews's avatar
Mark Andrews committed
22

Mark Andrews's avatar
Mark Andrews committed
23 24 25 26 27 28 29
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <sys/time.h>
30 31
#include <sys/ioctl.h>
#include <sys/uio.h>
32 33 34 35 36 37
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#include <netinet/ip6.h>
#include <netinet/icmp6.h>
#include <netinet/udp.h>
#include <netinet/tcp.h>
Mark Andrews's avatar
Mark Andrews committed
38 39

#include <errno.h>
40
#include <netdb.h>
Mark Andrews's avatar
Mark Andrews committed
41
#include <resolv.h>
42
#include <signal.h>
Mark Andrews's avatar
Mark Andrews committed
43

44 45 46 47
#ifndef FD_COPY
#define FD_COPY(x, y) memmove(y, x, sizeof(*x))
#endif

Mark Andrews's avatar
Mark Andrews committed
48 49 50 51 52 53
#define ns_t_dname 39
#define ns_t_sink 40
#define ns_t_apl 42
#define ns_t_ds 43
#define ns_t_sshfp 44
#define ns_t_ipseckey 45
54
#define ns_t_rrsig 46
Mark Andrews's avatar
Mark Andrews committed
55
#define ns_t_nsec 47
Mark Andrews's avatar
Mark Andrews committed
56
#define ns_t_dnskey 48
Mark Andrews's avatar
Mark Andrews committed
57 58 59 60
#define ns_t_dhcid 49
#define ns_t_nsec3 50
#define ns_t_nsec3param 51
#define ns_t_tlsa 52
61
#define ns_t_smimea 53
Mark Andrews's avatar
Mark Andrews committed
62 63 64 65 66
#define ns_t_hip 55
#define ns_t_ninfo 56
#define ns_t_talink 58
#define ns_t_cds 59
#define ns_t_cdnskey 60
67
#define ns_t_openpgpkey 61
Mark Andrews's avatar
Mark Andrews committed
68 69 70 71 72 73 74 75 76 77
#define ns_t_csync 62
#define ns_t_spf 99
#define ns_t_nid 104
#define ns_t_l32 105
#define ns_t_l34 106
#define ns_t_lp 107
#define ns_t_eui48 108
#define ns_t_eui64 109
#define ns_t_uri 256
#define ns_t_caa 257
78 79
#define ns_t_avc 258
#define ns_t_doa 259
Mark Andrews's avatar
Mark Andrews committed
80 81
#define ns_t_ta 32768
#define ns_t_dlv 32769
Mark Andrews's avatar
Mark Andrews committed
82

83 84
#define ns_r_badcookie 23

85
static int eof = 0;
Mark Andrews's avatar
Mark Andrews committed
86 87
static int maxfd = -1;
static fd_set rfds, wfds;
Mark Andrews's avatar
Mark Andrews committed
88
static int outstanding = 0;
89
static int maxoutstanding = 100;
Mark Andrews's avatar
Mark Andrews committed
90 91 92 93 94 95

static void(*rhandlers[FD_SETSIZE])(int);
static void(*whandlers[FD_SETSIZE])(int);

static int udp4 = -1;
static int udp6 = -1;
96 97
static int icmp4 = -1;
static int icmp6 = -1;
98

Mark Andrews's avatar
Mark Andrews committed
99 100 101
static int ipv4only = 0;
static int ipv6only = 0;

Mark Andrews's avatar
Mark Andrews committed
102
static int allok  = 0;
103
static int bad  = 0;
Mark Andrews's avatar
Mark Andrews committed
104
static int badtag  = 0;
105
static int ednsonly  = 0;
106
static int debug = 0;
Mark Andrews's avatar
Mark Andrews committed
107
static int inorder = 0;
108
static int serial = 0;
109
static int printnsid = 0;
110
static long long sent;
111

112 113

#ifdef HAVE_RES_GETSERVERS
114
static union res_sockaddr_union servers[10];
115 116 117 118 119 120 121
#else
static union {
        struct sockaddr_in sin;
        struct sockaddr_in6 sin6;
} servers[10];
#endif

122
static int nservers = 0;
123
int ident = 0;
Mark Andrews's avatar
Mark Andrews committed
124

Mark Andrews's avatar
Mark Andrews committed
125 126 127
/*
 * Doubly linked list macros.
 */
Mark Andrews's avatar
Mark Andrews committed
128 129 130 131 132 133 134 135
#define APPEND(list, item, link) do { \
	if ((list).tail) \
		(list).tail->link.next = (item); \
	else \
		(list).head = (item); \
	(item)->link.prev = list.tail; \
	(item)->link.next = NULL; \
	(list).tail = (item); \
Mark Andrews's avatar
Mark Andrews committed
136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158
	(item)->link.linked = 1; \
} while (0)

#define PREPEND(list, item, link) do { \
	if ((list).head) \
		(list).head->link.prev = (item); \
	else \
		(list).tail = (item); \
	(item)->link.prev = NULL; \
	(item)->link.next = list.head; \
	(list).head = (item); \
	(item)->link.linked = 1; \
} while (0)

#define INSERTBEFORE(list, before, item, link) do { \
	assert(LINKED(before, link)); \
	if ((before)->link.prev == NULL) \
		PREPEND(list, item, link); \
	else { \
		(item)->link.prev = (before)->link.prev; \
		(before)->link.prev = (item); \
		(item)->link.prev->link.next = (item); \
		(item)->link.next = (before); \
Mark Andrews's avatar
Mark Andrews committed
159
		(item)->link.linked = 1; \
Mark Andrews's avatar
Mark Andrews committed
160
	} \
Mark Andrews's avatar
Mark Andrews committed
161 162 163 164 165 166 167 168 169 170 171 172
} while (0)

#define UNLINK(list, item, link) do { \
	if ((item)->link.next) \
		(item)->link.next->link.prev = (item)->link.prev; \
	else \
		list.tail = (item)->link.prev; \
	if ((item)->link.prev) \
		(item)->link.prev->link.next = (item)->link.next; \
	else \
		list.head = (item)->link.next; \
	(item)->link.next = (item)->link.prev = NULL; \
173
	(item)->link.linked = 0; \
Mark Andrews's avatar
Mark Andrews committed
174 175 176
} while (0)

#define NEXT(item, link) (item)->link.next
Mark Andrews's avatar
Mark Andrews committed
177
#define PREV(item, link) (item)->link.prev
178
#define LINKED(item, link) (item)->link.linked
Mark Andrews's avatar
Mark Andrews committed
179 180 181 182

#define HEAD(list) (list).head
#define TAIL(list) (list).tail

Mark Andrews's avatar
Mark Andrews committed
183 184 185
/*
 * Test groupings
 */
Mark Andrews's avatar
Mark Andrews committed
186 187 188 189 190 191 192
#define EDNS 0x01
#define COMM 0x02
#define FULL 0x04
#define TYPE 0x08
#define EXPL 0x10

static int what = EDNS;
193

Mark Andrews's avatar
Mark Andrews committed
194
static struct {
Mark Andrews's avatar
Mark Andrews committed
195 196 197 198 199 200 201 202
	const char *name;		/* test nmemonic */
	unsigned int what;		/* select what test to make / report */
	unsigned short rdlen;		/* edns rdata length */
	const char *rdata;		/* edns rdata */
	unsigned short udpsize;		/* edns UDP size (0 == no EDNS) */
	unsigned short flags;		/* edns flags to be set */
	unsigned short version;		/* edns version */
	unsigned int tcp;		/* use tcp */
203
	unsigned int cookie;		/* opt record has cookie */
Mark Andrews's avatar
Mark Andrews committed
204 205 206 207 208 209 210 211 212 213
	unsigned int ignore;		/* ignore tc in response */
	unsigned int tc;		/* set tc in request */
	unsigned int rd;		/* set rd in request */
	unsigned int ra;		/* set ra in request */
	unsigned int cd;		/* set cd in request */
	unsigned int ad;		/* set ad  in request */
	unsigned int aa;		/* set aa in request */
	unsigned int z;			/* set z in request */
	unsigned int opcode;		/* use opcode for request */
	unsigned short type;		/* query type code */
Mark Andrews's avatar
Mark Andrews committed
214
	const char *dig;		/* dig command */
215
} opts[] = {
216
	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
217 218 219 220 221 222 223
	{ "dns",       EDNS,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +noedns +noad +norec SOA <zone>"
	},
	{ "aa",        FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0,  0, ns_t_soa,
	  "dig +noedns +noad +norec +aaflag SOA <zone>"
	},
	{ "ad",        FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0,  0, ns_t_soa,
Mark Andrews's avatar
Mark Andrews committed
224
	  "dig +noedns +ad +norec SOA <zone>"
Mark Andrews's avatar
Mark Andrews committed
225 226 227 228 229
	},
	{ "cd",        FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0,  0, ns_t_soa,
	  "dig +noedns +noad +norec +cd SOA <zone>"
	},
	{ "ra",        FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0,  0, ns_t_soa,
230
	  "### dig +noedns +noad +norec +raflag SOA <zone> ###"
Mark Andrews's avatar
Mark Andrews committed
231 232 233 234 235
	},
	{ "rd",        FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +noedns +noad +rec SOA <zone>"
	},
	{ "tc",        FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
236
	  "### dig +noedns +noad +norec +tcflag SOA <zone> ###"
Mark Andrews's avatar
Mark Andrews committed
237 238 239 240 241 242 243 244
	},
	{ "zflag",     FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,  0, ns_t_soa,
	  "dig +noedns +noad +norec +zflag SOA <zone>"
	},
	{ "opcode",    FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 0,
	  "dig +noedns +noad +norec +header-only +opcode=15"
	},
	{ "opcodeflg", FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 15, 0,
245
	  "### dig +noedns +header-only +opcode=15 +tcflag +rec +raflag +cd +ad +aaflag +zflag ###"
Mark Andrews's avatar
Mark Andrews committed
246 247 248 249 250 251 252
	},
	{ "type666",   FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, 666,
	  "dig +noedns +noad +norec TYPE666 <zone>"
	},
	{ "tcp",       FULL,  0, "",    0, 0x0000, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +noedns +noad +norec +tcp SOA <zone>"
	},
253 254

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
255 256 257 258 259 260 261 262 263
	{ "edns",      EDNS,  0, "", 4096, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec SOA <zone>"
	},
	{ "edns1",     EDNS,  0, "", 4096, 0x0000, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=1 +noednsneg +nocookie +noad +norec SOA <zone>"
	},
	{ "edns@512",  EDNS,  0, "",  512, 0x0000, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_dnskey,
	  "dig +edns=0 +nocookie +noad +norec +dnssec +ignoretc +bufsize=512 DNSKEY <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
264
	{ "ednsopt",   EDNS,  4, "\x00\x64\x00\x00",	/* 100 */
Mark Andrews's avatar
Mark Andrews committed
265 266 267
				     4096, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec +ednsopt=100 SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
268
	{ "edns1opt",  EDNS,  4, "\x00\x64\x00\x00",	/* 100 */
Mark Andrews's avatar
Mark Andrews committed
269 270 271
				     4096, 0x0000, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=1 +noednsneg +nocookie +noad +norec +ednsopt=100 SOA <zone>"
	},
272
	{ "do",        EDNS,  0, "",
Mark Andrews's avatar
Mark Andrews committed
273 274 275
				     4096, 0x8000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec +dnssec SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
276 277 278 279
	{ "docd",      FULL,  0, "",
				     4096, 0x8000, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec +dnssec SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
280 281 282 283 284 285
	{ "edns1do",   FULL,  0, "", 4096, 0x8000, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=1 +noednsneg +nocookie +noad +norec +dnssec SOA <zone>"
	},
	{ "ednsflags", EDNS,  0, "", 4096, 0x0080, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec +ednsflags=0x0080 SOA <zone>"
	},
286
	{ "optlist",   EDNS,  4 + 8 + 4 + 12,
287 288 289 290
	  "\x00\x03\x00\x00" 		     /* NSID */
	  "\x00\x08\x00\x04\x00\x01\x00\x00" /* ECS */
	  "\x00\x09\x00\x00" 		     /* EXPIRE */
	  "\x00\x0a\x00\x08\x01\x02\x03\x04\x05\x06\x07\x08",	/* COOKIE */
Mark Andrews's avatar
Mark Andrews committed
291 292 293
				     4096, 0x0000, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +noad +norec +nsid +subnet=0.0.0.0/0 +expire +cookie=0102030405060708 SOA <zone>"
	},
294 295

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
296
	{ "ednsnsid", FULL,  4, "\x00\x03\x00\x00",	/* NSID */
Mark Andrews's avatar
Mark Andrews committed
297 298 299
				     4096, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec +nsid SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
300
	{ "ednscookie", FULL, 12, "\x00\x0a\x00\x08\x01\x02\x03\x04\x05\x06\x07\x08", /* COOKIE */
Mark Andrews's avatar
Mark Andrews committed
301 302 303
				     4096, 0x0000, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +noad +norec +cookie=0102030405060708 SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
304
	{ "ednsexpire", FULL, 4, "\x00\x09\x00\x00",	/* EXPIRE */
Mark Andrews's avatar
Mark Andrews committed
305 306 307
				     4096, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec +expire SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
308
	{ "ednssubnet", FULL,  8, "\x00\x08\x00\x04\x00\x01\x00\x00",	/* ECS */
Mark Andrews's avatar
Mark Andrews committed
309 310 311 312
				     4096, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec +subnet=0.0.0.0/0 SOA <zone>"
	},

Mark Andrews's avatar
Mark Andrews committed
313
	{ "edns1nsid", FULL,  4, "\x00\x03\x00\x00",	/* NSID */
Mark Andrews's avatar
Mark Andrews committed
314 315 316
				     4096, 0x0000, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=1 +noednsneg +nocookie +noad +norec +nsid SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
317
	{ "edns1cookie", FULL, 12, "\x00\x0a\x00\x08\x01\x02\x03\x04\x05\x06\x07\x08", /* COOKIE */
Mark Andrews's avatar
Mark Andrews committed
318 319 320
				     4096, 0x0000, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=1 +noednsneg +noad +norec +cookie=0102030405060708 SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
321
	{ "edns1expire", FULL, 4, "\x00\x09\x00\x00",	/* EXPIRE */
Mark Andrews's avatar
Mark Andrews committed
322 323 324
				     4096, 0x0000, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=1 +noednsneg +nocookie +noad +norec +expire SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
325
	{ "edns1subnet", FULL,  8, "\x00\x08\x00\x04\x00\x01\x00\x00",	/* ECS */
Mark Andrews's avatar
Mark Andrews committed
326 327 328 329 330 331
				     4096, 0x0000, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=1 +noednsneg +nocookie +noad +norec +subnet=0.0.0.0/0 SOA <zone>"
	},
	{ "ednstcp",   EDNS,  0, "",  512, 0x8000, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_dnskey,
	  "dig +edns=0 +nocookie +noad +norec +dnssec +bufsize=512 +tcp DNSKEY <zone>"
	},
332 333

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
334
	{ "bind11",    COMM, 12, "\x00\x0a\x00\x08\x01\x02\x03\x04\x05\x06\x07\x08", /* COOKIE */
Mark Andrews's avatar
Mark Andrews committed
335 336 337
				     4096, 0x8000, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +cookie=0102030405060708 +noad +norec +dnssec SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
338
	{ "dig11",     COMM, 12, "\x00\x0a\x00\x08\x01\x02\x03\x04\x05\x06\x07\x08", /* COOKIE */
Mark Andrews's avatar
Mark Andrews committed
339 340 341
				     4096, 0x0000, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +cookie=0102030405060708 +ad +rec SOA <zone>"
	},
342 343

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385
	{ "A",         TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_a,
	  "dig +noedns +noad +norec A <zone>"
	},
	{ "NS",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_ns,
	  "dig +noedns +noad +norec NS <zone>"
	},
	{ "MD",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_md,
	  "dig +noedns +noad +norec MD <zone>"
	},
	{ "MF",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_mf,
	  "dig +noedns +noad +norec MF <zone>"
	},
	{ "CNAME",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_cname,
	  "dig +noedns +noad +norec CNAME <zone>"
	},
	{ "SOA",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +noedns +noad +norec SOA <zone>"
	},
	{ "MB",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_mb,
	  "dig +noedns +noad +norec MB <zone>"
	},
	{ "MG",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_mg,
	  "dig +noedns +noad +norec MG <zone>"
	},
	{ "MR",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_mr,
	  "dig +noedns +noad +norec MR <zone>"
	},
	{ "NULL",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_null,
	  "dig +noedns +noad +norec NULL <zone>"
	},
	{ "WKS",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_wks,
	  "dig +noedns +noad +norec WKS <zone>"
	},
	{ "PTR",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_ptr,
	  "dig +noedns +noad +norec PTR <zone>"
	},
	{ "HINFO",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_hinfo,
	  "dig +noedns +noad +norec HINFO <zone>"
	},
	{ "MINFO",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_minfo,
	  "dig +noedns +noad +norec MINFO <zone>"
	},
386 387

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432
	{ "MX",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_mx,
	  "dig +noedns +noad +norec MX <zone>"
	},
	{ "TXT",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_txt,
	  "dig +noedns +noad +norec TXT <zone>"
	},
	{ "RP",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_rp,
	  "dig +noedns +noad +norec RP <zone>"
	},
	{ "AFSDB",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_afsdb,
	  "dig +noedns +noad +norec AFSDB <zone>"
	},
	{ "X25",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_x25,
	  "dig +noedns +noad +norec X25 <zone>"
	},
	{ "ISDN",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_isdn,
	  "dig +noedns +noad +norec ISDN <zone>"
	},
	{ "RT",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_rt,
	  "dig +noedns +noad +norec RT <zone>"
	},
	{ "NSAP",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_nsap,
	  "dig +noedns +noad +norec NSAP <zone>"
	},
	{ "NSAP-PTR",  TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_nsap_ptr,
	  "dig +noedns +noad +norec NSAP-PTR <zone>"
	},
	{ "SIG",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_sig,
	  "dig +noedns +noad +norec SIG <zone>"
	},
	{ "KEY",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_key,
	  "dig +noedns +noad +norec KEY <zone>"
	},
	{ "PX",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_px,
	  "dig +noedns +noad +norec PX <zone>"
	},
	{ "GPOS",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_gpos,
	  "dig +noedns +noad +norec GPOS <zone>"
	},
	{ "AAAA",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_aaaa,
	  "dig +noedns +noad +norec AAAA <zone>"
	},
	{ "LOC",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_loc,
	  "dig +noedns +noad +norec LOC <zone>"
	},
433 434

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473
	{ "NXT",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_nxt,
	  "dig +noedns +noad +norec NXT <zone>"
	},
	{ "SRV",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_srv,
	  "dig +noedns +noad +norec SRV <zone>"
	},
	{ "NAPTR",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_naptr,
	  "dig +noedns +noad +norec NAPTR <zone>"
	},
	{ "KX",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_kx,
	  "dig +noedns +noad +norec KX <zone>"
	},
	{ "CERT",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_cert,
	  "dig +noedns +noad +norec CERT <zone>"
	},
	{ "A6",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_a6,
	  "dig +noedns +noad +norec A6 <zone>"
	},
	{ "DNAME",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_dname,
	  "dig +noedns +noad +norec DNAME <zone>"
	},
	{ "APL",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_apl,
	  "dig +noedns +noad +norec APL <zone>"
	},
	{ "DS",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_ds,
	  "dig +noedns +noad +norec DS <zone>"
	},
	{ "SSHFP",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_sshfp,
	  "dig +noedns +noad +norec SSHFP <zone>"
	},
	{ "IPSECKEY",  TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_ipseckey,
	  "dig +noedns +noad +norec IPSECKEY <zone>"
	},
	{ "RRSIG",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_rrsig,
	  "dig +noedns +noad +norec RRSIG <zone>"
	},
	{ "NSEC",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_nsec,
	  "dig +noedns +noad +norec NSEC <zone>"
	},
474 475

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514
	{ "DNSKEY",    TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_dnskey,
	  "dig +noedns +noad +norec DNSKEY <zone>"
	},
	{ "DHCID",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_dhcid,
	  "dig +noedns +noad +norec DHCID <zone>"
	},
	{ "NSEC3",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_nsec3,
	  "dig +noedns +noad +norec NSEC3 <zone>"
	},
	{ "NSEC3PARAM",TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_nsec3param,
	  "dig +noedns +noad +norec NSEC3PARAM <zone>"
	},
	{ "TLSA",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_tlsa,
	  "dig +noedns +noad +norec TLSA <zone>"
	},
	{ "SMIMEA",    TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_smimea,
	  "dig +noedns +noad +norec SMIMEA <zone>"
	},
	{ "HIP",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_hip,
	  "dig +noedns +noad +norec HIP <zone>"
	},
	{ "CDS",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_cds,
	  "dig +noedns +noad +norec CDS <zone>"
	},
	{ "CDNSKEY",   TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_cdnskey,
	  "dig +noedns +noad +norec CDNSKEY <zone>"
	},
	{ "OPENPGPKEY",TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_openpgpkey,
	  "dig +noedns +noad +norec OPENPGPKEY <zone>"
	},
	{ "SPF",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_spf,
	  "dig +noedns +noad +norec SPF <zone>"
	},
	{ "NID",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_nid,
	  "dig +noedns +noad +norec NID <zone>"
	},
	{ "L32",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_l32,
	  "dig +noedns +noad +norec L32 <zone>"
	},
515 516

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546
	{ "L64",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_l34,
	  "dig +noedns +noad +norec L64 <zone>"
	},
	{ "LP",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_lp,
	  "dig +noedns +noad +norec LP <zone>"
	},
	{ "EUI48",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_eui48,
	  "dig +noedns +noad +norec EUI48 <zone>"
	},
	{ "EUI64",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_eui64,
	  "dig +noedns +noad +norec EUI64 <zone>"
	},
	{ "URI",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_uri,
	  "dig +noedns +noad +norec URI <zone>"
	},
	{ "CAA",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_caa,
	  "dig +noedns +noad +norec CAA <zone>"
	},
	{ "AVC",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_avc,
	  "dig +noedns +noad +norec AVC <zone>"
	},
	{ "DOA",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_doa,
	  "dig +noedns +noad +norec DOA <zone>"
	},
	{ "DLV",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_dlv,
	  "dig +noedns +noad +norec DLV <zone>"
	},
	{ "TYPE1000",  TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, 1000,
	  "dig +noedns +noad +norec TYPE1000 <zone>"
	}
547 548
};

Mark Andrews's avatar
Mark Andrews committed
549 550 551
/*
 * Summary structure where results from multiple lookups are recorded.
 */
552
struct summary {
Mark Andrews's avatar
Mark Andrews committed
553 554 555 556 557
	struct {
		struct summary *prev;
		struct summary *next;
		int linked;
	} link;
Mark Andrews's avatar
Mark Andrews committed
558 559 560
	char zone[1024];		/* the zone's name */
	char ns[1024];			/* the server's name */
	struct sockaddr_storage storage;/* server we are talking to */
Mark Andrews's avatar
Mark Andrews committed
561
	int tests;			/* number of outstanding tests */
Mark Andrews's avatar
Mark Andrews committed
562
	int last;			/* last test sent */
Mark Andrews's avatar
Mark Andrews committed
563
	int deferred;			/* was the printing deferred */
Mark Andrews's avatar
Mark Andrews committed
564
	int done;			/* we are done */
Mark Andrews's avatar
Mark Andrews committed
565
	int type;			/* recursive query lookup type */
566
	int nodata;			/* recursive query got nodata */
Mark Andrews's avatar
Mark Andrews committed
567 568 569 570 571
	int nodataa;			/* recursive query got nodata */
	int nodataaaaa;			/* recursive query got nodata */
	int nxdomain;			/* recursive query got nxdomain */
	int nxdomaina;			/* recursive query got nxdomain */
	int nxdomainaaaa;		/* recursive query got nxdomain */
572 573
	int faileda;
	int failedaaaa;
Mark Andrews's avatar
Mark Andrews committed
574
	int cname;			/* NS is CNAME */
575 576
	int cnamea;			/* Nameserver is CNAME */
	int cnameaaaa;			/* Nameserver is CNAME */
Mark Andrews's avatar
Mark Andrews committed
577
	int seenrrsig;			/* a rrsig was seen in "do" test */
578 579 580 581 582 583
	int seenopt;			/* see a EDNS response */
	int seenedns;			/* see a EDNS response */
	int seenfailure;		/* see a lookup failure */
	int allok;			/* all answers are current ok */
	int allrefused;			/* all answers are current ok */
	int allservfail;		/* all answers are current ok */
Mark Andrews's avatar
Mark Andrews committed
584
	struct summary *xlink;		/* cross link of recursive A/AAAA */
585 586
	int nsidlen;
	char nsid[100];			/* nsid if found */
587 588 589
	char results[sizeof(opts)/sizeof(opts[0])][100];
};

Mark Andrews's avatar
Mark Andrews committed
590 591 592 593 594
static struct {
	struct summary *head;
	struct summary *tail;
} summaries;

Mark Andrews's avatar
Mark Andrews committed
595 596 597 598
struct workitem {
	struct {
		struct workitem *next;
		struct workitem *prev;
599
		int linked;
600
	} link, clink, plink, rlink, idlink, seqlink;
Mark Andrews's avatar
Mark Andrews committed
601 602 603
	unsigned short id;		/* the query id we are waiting for */
	struct timeval when;		/* when we will timeout */
	int type;			/* the query type being looked up */
Mark Andrews's avatar
Mark Andrews committed
604 605 606
	int test;			/* test number / server number */
	int sends;			/* number of times this UDP request
					 * has been sent */
Mark Andrews's avatar
Mark Andrews committed
607 608
	int buflen;			/* the size of the request to be sent */
	int tcpfd;			/* the tcp file descriptor */
Mark Andrews's avatar
Mark Andrews committed
609 610
	int outstanding;		/* outstanding has been set */
	int havelen;			/* readlen is tcp message length */
Mark Andrews's avatar
Mark Andrews committed
611 612 613 614 615
	int readlen;			/* how much we need to read */
	int read;			/* how much has been read so far */
	unsigned char buf[512];		/* the question we sent */
	unsigned char tcpbuf[0x10000];	/* where to accumulate the tcp response */
	struct summary *summary;	/* where this test is summaried */
Mark Andrews's avatar
Mark Andrews committed
616 617
};

618
/*
Mark Andrews's avatar
Mark Andrews committed
619
 * Work queues:
620 621 622
 *	'work' udp qeries;
 *	'connecting' tcp qeries;
 *	'reading' tcp qeries;
Mark Andrews's avatar
Mark Andrews committed
623
 *	'pending' deferred work items;
Mark Andrews's avatar
Mark Andrews committed
624 625 626
 *
 * Outstanding queries by qid.
 *	'ids'
627 628 629
 *
 * Outstanding icmp by seq.
 *	'ids'
630
 */
Mark Andrews's avatar
Mark Andrews committed
631 632 633
static struct {
	struct workitem *head;
	struct workitem *tail;
634
} work, connecting, reading, pending, ids[0x10000], seq[0x10000];
Mark Andrews's avatar
Mark Andrews committed
635

Mark Andrews's avatar
Mark Andrews committed
636 637 638
static void
dotest(struct workitem *item);

639 640 641
static void
nextserver(struct workitem *item);

642 643
static void
connecttoserver(struct workitem *item);
Mark Andrews's avatar
Mark Andrews committed
644

Mark Andrews's avatar
Mark Andrews committed
645 646 647
static void
report(struct summary *summary);

Mark Andrews's avatar
Mark Andrews committed
648 649 650 651 652
static int
storage_equal(struct sockaddr_storage *s1, struct sockaddr_storage *s2) {
	struct sockaddr_in *sin1, *sin2;
	struct sockaddr_in6 *sin61, *sin62;

653
	if (s1->ss_family != s2->ss_family)
Mark Andrews's avatar
Mark Andrews committed
654 655 656 657 658 659
		return (0);

	switch (s1->ss_family) {
	case AF_INET:
		sin1 = (struct sockaddr_in *)s1;
		sin2 = (struct sockaddr_in *)s2;
Mark Andrews's avatar
Mark Andrews committed
660

Mark Andrews's avatar
Mark Andrews committed
661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676
		if (sin1->sin_port != sin2->sin_port ||
		    sin1->sin_addr.s_addr != sin2->sin_addr.s_addr)
			return (0);
		return (1);
	case AF_INET6:
		sin61 = (struct sockaddr_in6 *)s1;
		sin62 = (struct sockaddr_in6 *)s2;

		if (sin61->sin6_port != sin62->sin6_port ||
		    memcmp(&sin61->sin6_addr, &sin62->sin6_addr, 16) != 0)
			return (0);
		return (1);
	}
	return (0);
}

Mark Andrews's avatar
Mark Andrews committed
677 678 679
/*
 * Check if it is safe to use this id to this address.
 */
Mark Andrews's avatar
Mark Andrews committed
680 681 682 683 684 685
static int
checkid(struct sockaddr_storage *storage, int id) {
	struct workitem *item;

	item = HEAD(ids[id]);
	while (item != NULL &&
686
	       !storage_equal(storage, &item->summary->storage))
Mark Andrews's avatar
Mark Andrews committed
687 688 689 690
		item = NEXT(item, idlink);
	return ((item == NULL) ? 1 : 0);
}

691 692 693 694 695 696 697 698 699 700 701 702 703 704 705
/*
 * Check if we have a outstanding icmp with this sequence number
 * to this address.
 */
static int
checkseq(struct sockaddr_storage *storage, int id) {
	struct workitem *item;

	item = HEAD(seq[id]);
	while (item != NULL &&
	       !storage_equal(storage, &item->summary->storage))
		item = NEXT(item, seqlink);
	return ((item == NULL) ? 1 : 0);
}

Mark Andrews's avatar
Mark Andrews committed
706 707 708 709 710 711 712
static void
freesummary(struct summary *summary) {
	if (LINKED(summary, link))
		UNLINK(summaries, summary, link);
	free(summary);
}

Mark Andrews's avatar
Mark Andrews committed
713 714 715
/*
 * Generate a report line.
 */
716
static void
Mark Andrews's avatar
Mark Andrews committed
717
printandfree(struct summary *summary) {
718 719 720 721 722 723 724 725
	struct sockaddr_in *s = (struct sockaddr_in *)&summary->storage;
	struct sockaddr_in6 *s6 = (struct sockaddr_in6 *)&summary->storage;;
	char addrbuf[64];
	void *addr;
	unsigned int i;
	int x;

	if ((summary->type == ns_t_a || summary->type == ns_t_aaaa) &&
Mark Andrews's avatar
Mark Andrews committed
726
	    summary->nodataa && summary->nodataaaaa) {
727 728
		printf("%s. %s: no address records found\n",
		       summary->zone, summary->ns);
Mark Andrews's avatar
Mark Andrews committed
729
		freesummary(summary);
730 731
		return;
	}
732

733 734 735 736
	if ((summary->type == ns_t_a || summary->type == ns_t_aaaa) &&
	    summary->nxdomaina && summary->nxdomainaaaa) {
		printf("%s. %s: no address records found (NXDOMAIN)\n",
		       summary->zone, summary->ns);
Mark Andrews's avatar
Mark Andrews committed
737
		freesummary(summary);
738 739
		return;
	}
740

741 742 743 744 745 746 747 748
	if ((summary->type == ns_t_a || summary->type == ns_t_aaaa) &&
	    summary->faileda && summary->failedaaaa) {
		printf("%s. %s: address lookups failed\n",
		       summary->zone, summary->ns);
		freesummary(summary);
		return;
	}

749 750 751 752 753 754 755 756
	if ((summary->type == ns_t_a || summary->type == ns_t_aaaa) &&
	    (summary->cnamea || summary->cnameaaaa)) {
		printf("%s. %s: nameserver is a CNAME\n",
		       summary->zone, summary->ns);
		freesummary(summary);
		return;
	}

Mark Andrews's avatar
Mark Andrews committed
757 758 759 760 761 762
	if ((summary->type == ns_t_ns) && summary->cname) {
		printf("%s.: zone is a CNAME\n", summary->zone);
		freesummary(summary);
		return;
	}

763 764 765
	/*
	 * Do deferred xlink failure reports.
	 */
766 767
	if (summary->type == ns_t_a &&
	    summary->nodataa && summary->failedaaaa) {
768 769 770 771 772
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" AAAAA lookup failed\n");
		freesummary(summary);
		return;
	}
773 774
	if (summary->type == ns_t_aaaa &&
	    summary->nodataaaaa && summary->faileda) {
775 776 777 778 779
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" A lookup failed\n");
		freesummary(summary);
		return;
	}
780 781
	if (summary->type == ns_t_a &&
	    summary->faileda && summary->nxdomainaaaa) {
782 783 784 785 786
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" AAAAA nxdomain\n");
		freesummary(summary);
		return;
	}
787 788
	if (summary->type == ns_t_aaaa &&
	    summary->failedaaaa && summary->nxdomaina) {
789 790 791 792 793
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" A nxdomain\n");
		freesummary(summary);
		return;
	}
794 795 796 797 798 799
	if (summary->type == ns_t_ns && summary->nodata) {
		printf("%s.:", summary->zone);
		printf(" no NS records found\n");
		freesummary(summary);
		return;
	}
800

Mark Andrews's avatar
Mark Andrews committed
801
	if (summary->done || summary->nodataa || summary->nodataaaaa) {
Mark Andrews's avatar
Mark Andrews committed
802
		freesummary(summary);
803 804
		return;
	}
Mark Andrews's avatar
Mark Andrews committed
805

806 807 808
	if (summary->type != 0 && summary->nxdomain) {
		if (summary->type == ns_t_ns) {
			printf("%s.: NS nxdomain\n", summary->zone);
Mark Andrews's avatar
Mark Andrews committed
809
			freesummary(summary);
810 811 812 813 814 815
			return;
		}
		printf("%s. %s:", summary->zone, summary->ns);
		if (summary->type == ns_t_a) printf(" A");
		if (summary->type == ns_t_aaaa) printf(" AAAA");
		printf(" nxdomain\n");
Mark Andrews's avatar
Mark Andrews committed
816
		freesummary(summary);
817 818 819 820 821
		return;
	}
	if (summary->type == ns_t_a) {
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" A lookup failed\n");
Mark Andrews's avatar
Mark Andrews committed
822
		freesummary(summary);
823 824 825 826 827
		return;
	}
	if (summary->type == ns_t_aaaa) {
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" AAAA lookup failed\n");
Mark Andrews's avatar
Mark Andrews committed
828
		freesummary(summary);
829 830 831
		return;
	}
	if (summary->type == ns_t_ns) {
Mark Andrews's avatar
Mark Andrews committed
832
		printf("%s.:", summary->zone);
833
		printf(" NS lookup failed\n");
Mark Andrews's avatar
Mark Andrews committed
834
		freesummary(summary);
835 836
		return;
	}
837

838 839 840 841 842
	if (summary->seenopt && (summary->allrefused && summary->allservfail))
		summary->seenedns = 1;

	if (summary->type != 0 || (summary->allok && bad) ||
	    (!summary->seenfailure && !summary->seenedns && ednsonly)) {
Mark Andrews's avatar
Mark Andrews committed
843
		freesummary(summary);
Mark Andrews's avatar
Mark Andrews committed
844 845 846
		return;
	}

847 848 849 850 851
	switch (summary->storage.ss_family) {
	case AF_INET: addr = &s->sin_addr; break;
	case AF_INET6: addr = &s6->sin6_addr; break;
	default: addr = NULL; break;
	}
Mark Andrews's avatar
Mark Andrews committed
852

853
	if (addr == NULL)
854
		strncpy(addrbuf, "<unknown>", sizeof(addrbuf));
855 856 857 858
	else
		inet_ntop(summary->storage.ss_family, addr,
			  addrbuf, sizeof(addrbuf));

859 860
	x = -1;
	printf("%s. @%s (%s.):", summary->zone, addrbuf, summary->ns);
Mark Andrews's avatar
Mark Andrews committed
861 862 863 864 865
	if (allok && summary->allok)
		printf(" all ok");
	else
		for (i = 0; i < sizeof(opts)/sizeof(opts[0]); i++) {
			if (opts[i].what != 0 && (opts[i].what & what) == 0)
Mark Andrews's avatar
Mark Andrews committed
866
				continue;
Mark Andrews's avatar
Mark Andrews committed
867
			if (summary->results[i][0] == 0)
868
				strncpy(summary->results[i], "skipped", 100);
Mark Andrews's avatar
Mark Andrews committed
869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884
			if (strcmp(opts[i].name, "do") == 0)
				x = i;
			if (strcmp(opts[i].name, "ednstcp") == 0 && x != -1 &&
			    (!badtag || (strcmp(summary->results[x], "ok") != 0 &&
					 strncmp(summary->results[x], "ok,", 3) != 0)))
			{
				printf(" signed=%s", summary->results[x]);
				if (summary->seenrrsig)
					printf(",yes");
			}
			if (badtag) {
				if (strcmp(summary->results[i], "ok") == 0 ||
				    strncmp(summary->results[i], "ok,", 3) == 0)
					continue;
			}
			printf(" %s=%s", opts[i].name, summary->results[i]);
Mark Andrews's avatar
Mark Andrews committed
885
		}
886 887 888 889 890 891 892 893 894 895
	if (printnsid && summary->nsidlen != 0) {
		printf(" (");
		for (i = 0; i < summary->nsidlen; i++) {
			if (isprint(summary->nsid[i] & 0xff))
				putchar(summary->nsid[i]);
			else
				putchar('.');
		}
		printf(")");
	}
896
	printf("\n");
Mark Andrews's avatar
Mark Andrews committed
897 898 899 900 901 902
	freesummary(summary);
}

static void
report(struct summary *summary) {

Mark Andrews's avatar
Mark Andrews committed
903 904 905 906
	/*
	 * Send the next test now that we have completed the last test.
	 */
	if (serial && summary->type == 0 && summary->tests == 1) {
907 908 909
		for (summary->last++;
		     summary->last < sizeof(opts)/sizeof(opts[0]);
		     summary->last++) {
Mark Andrews's avatar
Mark Andrews committed
910
			struct workitem *item;
911 912
			if (opts[summary->last].what != 0 &&
			    (opts[summary->last].what & what) == 0)
Mark Andrews's avatar
Mark Andrews committed
913 914 915 916 917
				continue;
			item = calloc(1, sizeof(*item));
			if (item == NULL)
				continue;
			item->summary = summary;
918
			item->test = item->summary->last;
919
			item->tcpfd = -1;
Mark Andrews's avatar
Mark Andrews committed
920 921 922 923 924
			dotest(item);
			return;
		}
	}

Mark Andrews's avatar
Mark Andrews committed
925 926 927 928 929 930 931 932 933 934 935 936
	/*
	 * Have all the tests completed?
	 */
	summary->tests--;
	if (summary->tests)
		return;

	/*
	 * If we are cross linked record the lookup details on the other
	 * structure.
	 */
	if (summary->xlink) {
937 938 939 940 941 942 943 944
		if (summary->cnamea) {
			summary->xlink->cnamea = 1;
			summary->done = 1;
		}
		if (summary->cnameaaaa) {
			summary->xlink->cnameaaaa = 1;
			summary->done = 1;
		}
Mark Andrews's avatar
Mark Andrews committed
945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960
		if (summary->nodataa) {
			summary->xlink->nodataa = 1;
			summary->done = 1;
		}
		if (summary->nodataaaaa) {
			summary->xlink->nodataaaaa = 1;
			summary->done = 1;
		}
		if (summary->nxdomaina) {
			summary->xlink->nxdomaina = 1;
			summary->done = 1;
		}
		if (summary->nxdomainaaaa) {
			summary->xlink->nxdomainaaaa = 1;
			summary->done = 1;
		}
961 962 963 964 965 966 967 968 969 970
		if (!summary->done) {
			if (summary->type == ns_t_a) {
				summary->xlink->faileda = 1;
				summary->done = 1;
			}
			if (summary->type == ns_t_aaaa) {
				summary->xlink->failedaaaa = 1;
				summary->done = 1;
			}
		}
Mark Andrews's avatar
Mark Andrews committed
971 972 973 974 975 976 977 978 979 980 981

		/*
		 * Remove the cross link.
		 */
		summary->xlink->xlink = NULL;
		summary->xlink = NULL;
		if (summary->done) {
			freesummary(summary);
			goto print_deferred;
		}
	}
982 983 984 985 986 987
	if (!summary->done) {
		if (summary->type == ns_t_a)
			summary->faileda = 1;
		if (summary->type == ns_t_aaaa)
			summary->failedaaaa = 1;
	}
Mark Andrews's avatar
Mark Andrews committed
988 989 990 991 992 993 994 995 996 997

	if (inorder && PREV(summary, link)) {
		summary->deferred = 1;
		return;
	}
	printandfree(summary);

 print_deferred:
	while ((summary = HEAD(summaries)) && summary->deferred)
		printandfree(summary);
998 999
}

Mark Andrews's avatar
Mark Andrews committed
1000 1001 1002
/*
 * Free a work item and unlink.
 */
1003 1004
static void
freeitem(struct workitem * item) {
Mark Andrews's avatar
Mark Andrews committed
1005 1006
	if (item->summary)
		report(item->summary);
1007
	if (item->tcpfd != -1) {
1008 1009 1010 1011 1012 1013 1014 1015 1016 1017
		FD_CLR(item->tcpfd, &rfds);
		FD_CLR(item->tcpfd, &wfds);
		rhandlers[item->tcpfd] = NULL;
		whandlers[item->tcpfd] = NULL;
		close(item->tcpfd);
	}
	if (item->outstanding)
		outstanding--;
	if (LINKED(item, link))
		UNLINK(work, item, link);
Mark Andrews's avatar
Mark Andrews committed
1018 1019
	if (LINKED(item, plink))
		UNLINK(pending, item, plink);
1020 1021 1022 1023 1024 1025
	if (LINKED(item, rlink))
		UNLINK(reading, item, rlink);
	if (LINKED(item, clink))
		UNLINK(connecting, item, clink);
	if (LINKED(item, idlink))
		UNLINK(ids[item->id], item, idlink);
1026 1027
	if (LINKED(item, seqlink))
		UNLINK(seq[item->id], item, seqlink);
1028 1029 1030
	free(item);
}

Mark Andrews's avatar
Mark Andrews committed
1031 1032 1033
/*
 * Add a tag to the report.
 */
1034
static void
1035
addtag(struct workitem *item, const char *tag) {
1036
	char *result = item->summary->results[item->test];
1037 1038
	if (result[0]) strncat(result, ",", 100);
	strncat(result, tag, 100);
1039 1040
}

Mark Andrews's avatar
Mark Andrews committed
1041 1042 1043
/*
 * Resend a UDP request.
 */
1044 1045 1046
static void
resend(struct workitem *item) {
	int n, fd = -1;
1047
	socklen_t ss_len;
1048 1049 1050 1051

	switch (item->summary->storage.ss_family) {
	case AF_INET:
		fd = udp4;
1052
		ss_len = sizeof(struct sockaddr_in);
1053 1054 1055
		break;
	case AF_INET6:
		fd = udp6;
1056
		ss_len = sizeof(struct sockaddr_in6);
1057 1058 1059 1060 1061
		break;
	}

	if (fd == -1) {
		addtag(item, "skipped");
1062
		item->summary->allok = 0;
1063 1064 1065 1066
		freeitem(item);
		return;
	}

1067
	if (!item->outstanding && outstanding > maxoutstanding) {
1068 1069
		gettimeofday(&item->when, NULL);
		item->when.tv_sec += 1;
Mark Andrews's avatar
Mark Andrews committed
1070 1071 1072
		if (LINKED(item, link))
			UNLINK(work, item, link);
		APPEND(pending, item, plink);
1073 1074 1075 1076
		return;
	}

	n = sendto(fd, item->buf, item->buflen, 0,
1077
		   (struct sockaddr *)&item->summary->storage, ss_len);
1078 1079 1080 1081 1082 1083 1084 1085
	if (n > 0) {
		if (debug)
			printf("resend %s rdlen=%u udpsize=%u flags=%04x "
			       "version=%u tcp=%u ignore=%u id=%u\n",
			       opts[item->test].name, opts[item->test].rdlen,
			       opts[item->test].udpsize, opts[item->test].flags,
			       opts[item->test].version, opts[item->test].tcp,
			       opts[item->test].ignore, item->id);
1086
		sent++;
1087 1088 1089 1090 1091
		if (!item->outstanding++)
			outstanding++;
		gettimeofday(&item->when, NULL);
		item->when.tv_sec += 1;
		item->sends++;
Mark Andrews's avatar
Mark Andrews committed
1092 1093
		if (LINKED(item, link))
			UNLINK(work, item, link);
1094
		APPEND(work, item, link);
1095 1096
	} else if (item->summary->type) {
		nextserver(item);
1097 1098
	} else {
		addtag(item, "failed");
1099 1100
		item->summary->allok = 0;
		item->summary->seenfailure = 1;
1101 1102 1103 1104
		freeitem(item);
	}
}

Mark Andrews's avatar
Mark Andrews committed
1105 1106 1107
/*
 * Start a individual test.
 */
Mark Andrews's avatar
Mark Andrews committed
1108 1109 1110 1111
static void
dotest(struct workitem *item) {
	unsigned char *cp;
	unsigned int ttl;
Mark Andrews's avatar
Mark Andrews committed
1112
	int n, fd, id, tries = 0, opcode;
1113 1114
	socklen_t ss_len;
	
Mark Andrews's avatar
Mark Andrews committed
1115

1116
	switch (item->summary->storage.ss_family) {
Mark Andrews's avatar
Mark Andrews committed
1117 1118
	case AF_INET:
		fd = udp4;
1119
		ss_len = sizeof(struct sockaddr_in);
Mark Andrews's avatar
Mark Andrews committed
1120 1121 1122
		break;
	case AF_INET6:
		fd = udp6;
1123
		ss_len = sizeof(struct sockaddr_in6);
Mark Andrews's avatar
Mark Andrews committed
1124 1125 1126 1127
		break;
	}

	if (fd == -1) {
1128
		addtag(item, "skipped");
1129
		item->summary->allok = 0;
1130
		freeitem(item);
Mark Andrews's avatar
Mark Andrews committed
1131 1132
		return;
	}
Mark Andrews's avatar
Mark Andrews committed
1133

Mark Andrews's avatar
Mark Andrews committed
1134 1135 1136 1137
	/*
	 * res_mkquery only really knows about QUERY but it is useful
	 * for initalising the header when the opcode isn't QUERY.
	 */
Mark Andrews's avatar
Mark Andrews committed
1138 1139 1140 1141 1142 1143 1144 1145
	opcode = opts[item->test].opcode;
	switch (opcode) {
	case 0: break;
	default:
		opcode = ns_o_query;
	}

	n = res_mkquery(opcode, item->summary->zone, ns_c_in,
1146 1147
			opts[item->test].type, NULL, 0, NULL,
			item->buf, sizeof(item->buf));
Mark Andrews's avatar
Mark Andrews committed
1148 1149 1150 1151 1152 1153 1154
	/* fixup opcode? */
	if (n > 0 && opts[item->test].opcode != opcode) {
		item->buf[2] &= 0x17;
		item->buf[2] |= (opts[item->test].opcode & 0x0f) << 3;
		/* Zero question section. */
		if (opts[item->test].opcode == 15)
			item->buf[4] = item->buf[5] = 0;
1155
		n = 12;
Mark Andrews's avatar
Mark Andrews committed
1156
	}
Mark Andrews's avatar
Mark Andrews committed
1157 1158 1159 1160

	/*
	 * Set DNS flags as specified by test.
	 */
1161 1162
	if (opts[item->test].tc)
		item->buf[2] |= 0x2;	/* set tc */
Mark Andrews's avatar
Mark Andrews committed
1163 1164 1165 1166
	if (opts[item->test].rd)
		item->buf[2] |= 0x1;	/* set rd */
	else
		item->buf[2] &= ~0x1;	/* clear rd */
1167 1168 1169 1170 1171 1172 1173 1174
	if (opts[item->test].ra)
		item->buf[3] |= 0x80;	/* set ra */
	if (opts[item->test].z)
		item->buf[3] |= 0x40;	/* set z */
	if (opts[item->test].ad)
		item->buf[3] |= 0x20;	/* set ad */
	if (opts[item->test].cd)
		item->buf[3] |= 0x10;	/* set cd */
Mark Andrews's avatar
Mark Andrews committed
1175

1176
	if (n > 12) {
1177
		char name[1024];
Mark Andrews's avatar
Mark Andrews committed
1178 1179 1180
		/*
		 * Make zone canonical.
		 */
1181 1182
		dn_expand(item->buf, item->buf + n, item->buf + 12,
			  name, sizeof(name));
1183
		strncpy(item->summary->zone, name,
1184
			sizeof(item->summary->zone));
1185
	}
Mark Andrews's avatar
Mark Andrews committed
1186

Mark Andrews's avatar
Mark Andrews committed
1187 1188 1189 1190 1191
	/*
	 * Add OPT record if required by test.
	 */
	if (n > 0 && opts[item->test].udpsize > 0 &&
	    11 + opts[item->test].rdlen < 512 - n) {
Mark Andrews's avatar
Mark Andrews committed
1192
		cp = item->buf + n;
1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203
		*cp++ = 0;				/* name */
		ns_put16(ns_t_opt, cp);			/* type */
		cp += 2;
		ns_put16(opts[item->test].udpsize, cp);	/* class */
		cp += 2;
		ttl = (opts[item->test].version << 16) |
		      opts[item->test].flags;
		ns_put32(ttl, cp);			/* ttl */
		cp += 4;
		ns_put16(opts[item->test].rdlen, cp);	/* rdlen */
		cp += 2;
Mark Andrews's avatar
Mark Andrews committed
1204 1205
		memcpy(cp, opts[item->test].rdata, opts[item->test].rdlen);
		cp += opts[item->test].rdlen;
1206 1207
		item->buf[11] = 1;			/* adcount */
		n = cp - item->buf;			/* total length */
Mark Andrews's avatar
Mark Andrews committed
1208 1209 1210
	}

	if (n > 0) {
Mark Andrews's avatar
Mark Andrews committed
1211 1212 1213
		/*
		 * Adjust id if it clashes with a outstanding request.
		 */
Mark Andrews's avatar
Mark Andrews committed
1214 1215
		id = item->buf[0] << 8 | item->buf[1];

1216 1217
		while (!checkid(&item->summary->storage, id) &&
		       tries++ < 0xffff)
Mark Andrews's avatar
Mark Andrews committed
1218
			id = (id + 1) & 0xffff;
Mark Andrews's avatar
Mark Andrews committed
1219

Mark Andrews's avatar
Mark Andrews committed
1220
		if (tries == 0xffff) {
1221
			addtag(item, "skipped");
1222
			item->summary->allok = 0;
1223
			item->summary->seenfailure = 1;
1224
			freeitem(item);
Mark Andrews's avatar
Mark Andrews committed
1225 1226
			return;
		}
Mark Andrews's avatar
Mark Andrews committed
1227

Mark Andrews's avatar
Mark Andrews committed
1228 1229 1230 1231 1232
		item->buf[0] = id >> 8;
		item->buf[1] = id & 0xff;
		item->id = id;
		item->buflen = n;

1233 1234 1235 1236 1237
		if (opts[item->test].tcp) {
			connecttoserver(item);
			return;
		}

Mark Andrews's avatar
Mark Andrews committed
1238 1239 1240
		/*
		 * If there is too much outstanding work queue this item.
		 */
1241
		if (!item->outstanding && outstanding > maxoutstanding) {
1242 1243
			gettimeofday(&item->when, NULL);
			item->when.tv_sec += 1;
Mark Andrews's avatar
Mark Andrews committed
1244
			APPEND(pending, item, plink);
1245 1246 1247 1248
			APPEND(ids[item->id], item, idlink);
			return;
		}

Mark Andrews's avatar
Mark Andrews committed
1249
		n = sendto(fd, item->buf, item->buflen, 0,
1250
			   (struct sockaddr *)&item->summary->storage, ss_len);
Mark Andrews's avatar
Mark Andrews committed
1251 1252 1253
	}

	if (n > 0) {
1254 1255 1256 1257 1258 1259 1260 1261 1262
		if (debug)
			printf("%s rdlen=%u udpsize=%u flags=%04x version=%u "
			       "tcp=%u ignore=%u id=%u\n",
			       opts[item->test].name, opts[item->test].rdlen,
			       opts[item->test].udpsize, opts[item->test].flags,
			       opts[item->test].version, opts[item->test].tcp,
			       opts[item->test].ignore, item->id);
		if (!item->outstanding++)
			outstanding++;
1263
		sent++;
Mark Andrews's avatar
Mark Andrews committed
1264
		gettimeofday(&item->when, NULL);
1265
		item->when.tv_sec += 1;
Mark Andrews's avatar
Mark Andrews committed
1266 1267 1268
		item->sends = 1;
		APPEND(work, item, link);
		APPEND(ids[item->id], item, idlink);