Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libc/asr/asr_debug.c	Lines:	0	188	0.0 %
Date:	2017-11-13	Branches:	0	110	0.0 %


/*	$OpenBSD: asr_debug.c,v 1.24 2017/02/27 11:31:01 jca Exp $	*/
/*
 * Copyright (c) 2012 Eric Faurot <eric@openbsd.org>
 *
 * Permission to use, copy, modify, and 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 THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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.
 */

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <arpa/inet.h>
#include <netdb.h>

#include <asr.h>
#include <resolv.h>
#include <string.h>

#include "asr_private.h"

static const char *rcodetostr(uint16_t);
static const char *print_dname(const char *, char *, size_t);
static const char *print_header(const struct asr_dns_header *, char *, size_t);
static const char *print_query(const struct asr_dns_query *, char *, size_t);
static const char *print_rr(const struct asr_dns_rr *, char *, size_t);

FILE *_asr_debug = NULL;

#define OPCODE_SHIFT	11

static const char *
rcodetostr(uint16_t v)
{
	switch (v) {
	case NOERROR:	return "NOERROR";
	case FORMERR:	return "FORMERR";
	case SERVFAIL:	return "SERVFAIL";
	case NXDOMAIN:	return "NXDOMAIN";
	case NOTIMP:	return "NOTIMP";
	case REFUSED:	return "REFUSED";
	default:	return "?";
	}
}

static const char *
print_dname(const char *_dname, char *buf, size_t max)
{
	return (_asr_strdname(_dname, buf, max));
}

static const char *
print_rr(const struct asr_dns_rr *rr, char *buf, size_t max)
{
	char	*res;
	char	 tmp[256];
	char	 tmp2[256];
	int	 r;

	res = buf;

	r = snprintf(buf, max, "%s %u %s %s ",
	    print_dname(rr->rr_dname, tmp, sizeof tmp),
	    rr->rr_ttl,
	    __p_class(rr->rr_class),
	    __p_type(rr->rr_type));
	if (r == -1) {
		buf[0] = '\0';
		return (buf);
	}

	if ((size_t)r >= max)
		return (buf);

	max -= r;
	buf += r;

	switch (rr->rr_type) {
	case T_CNAME:
		print_dname(rr->rr.cname.cname, buf, max);
		break;
	case T_MX:
		snprintf(buf, max, "%lu %s",
		    (unsigned long)rr->rr.mx.preference,
		    print_dname(rr->rr.mx.exchange, tmp, sizeof tmp));
		break;
	case T_NS:
		print_dname(rr->rr.ns.nsname, buf, max);
		break;
	case T_PTR:
		print_dname(rr->rr.ptr.ptrname, buf, max);
		break;
	case T_SOA:
		snprintf(buf, max, "%s %s %lu %lu %lu %lu %lu",
		    print_dname(rr->rr.soa.rname, tmp, sizeof tmp),
		    print_dname(rr->rr.soa.mname, tmp2, sizeof tmp2),
		    (unsigned long)rr->rr.soa.serial,
		    (unsigned long)rr->rr.soa.refresh,
		    (unsigned long)rr->rr.soa.retry,
		    (unsigned long)rr->rr.soa.expire,
		    (unsigned long)rr->rr.soa.minimum);
		break;
	case T_A:
		if (rr->rr_class != C_IN)
			goto other;
		snprintf(buf, max, "%s", inet_ntop(AF_INET,
		    &rr->rr.in_a.addr, tmp, sizeof tmp));
		break;
	case T_AAAA:
		if (rr->rr_class != C_IN)
			goto other;
		snprintf(buf, max, "%s", inet_ntop(AF_INET6,
		    &rr->rr.in_aaaa.addr6, tmp, sizeof tmp));
		break;
	default:
	other:
		snprintf(buf, max, "(rdlen=%i)", (int)rr->rr.other.rdlen);
		break;
	}

	return (res);
}

static const char *
print_query(const struct asr_dns_query *q, char *buf, size_t max)
{
	char b[256];

	snprintf(buf, max, "%s	%s %s",
	    print_dname(q->q_dname, b, sizeof b),
	    __p_class(q->q_class), __p_type(q->q_type));

	return (buf);
}

static const char *
print_header(const struct asr_dns_header *h, char *buf, size_t max)
{
	snprintf(buf, max,
	"id:0x%04x %s op:%i %s %s %s %s z:%i %s %s r:%s qd:%i an:%i ns:%i ar:%i",
	    ((int)h->id),
	    (h->flags & QR_MASK) ? "QR":"  ",
	    (int)(OPCODE(h->flags) >> OPCODE_SHIFT),
	    (h->flags & AA_MASK) ? "AA":"  ",
	    (h->flags & TC_MASK) ? "TC":"  ",
	    (h->flags & RD_MASK) ? "RD":"  ",
	    (h->flags & RA_MASK) ? "RA":"  ",
	    (h->flags & Z_MASK),
	    (h->flags & AD_MASK) ? "AD":"  ",
	    (h->flags & CD_MASK) ? "CD":"  ",
	    rcodetostr(RCODE(h->flags)),
	    h->qdcount, h->ancount, h->nscount, h->arcount);

	return (buf);
}

void
_asr_dump_packet(FILE *f, const void *data, size_t len)
{
	char			buf[1024];
	struct asr_unpack	p;
	struct asr_dns_header	h;
	struct asr_dns_query	q;
	struct asr_dns_rr	rr;
	int			i, an, ns, ar, n;

	if (f == NULL)
		return;

	_asr_unpack_init(&p, data, len);

	if (_asr_unpack_header(&p, &h) == -1) {
		fprintf(f, ";; BAD PACKET: %s\n", strerror(p.err));
		return;
	}

	fprintf(f, ";; HEADER %s\n", print_header(&h, buf, sizeof buf));

	if (h.qdcount)
		fprintf(f, ";; QUERY SECTION:\n");
	for (i = 0; i < h.qdcount; i++) {
		if (_asr_unpack_query(&p, &q) == -1)
			goto error;
		fprintf(f, "%s\n", print_query(&q, buf, sizeof buf));
	}

	an = 0;
	ns = an + h.ancount;
	ar = ns + h.nscount;
	n = ar + h.arcount;

	for (i = 0; i < n; i++) {
		if (i == an)
			fprintf(f, "\n;; ANSWER SECTION:\n");
		if (i == ns)
			fprintf(f, "\n;; AUTHORITY SECTION:\n");
		if (i == ar)
			fprintf(f, "\n;; ADDITIONAL SECTION:\n");

		if (_asr_unpack_rr(&p, &rr) == -1)
			goto error;
		fprintf(f, "%s\n", print_rr(&rr, buf, sizeof buf));
	}

	if (p.offset != len)
		fprintf(f, ";; REMAINING GARBAGE %zu\n", len - p.offset);

    error:
	if (p.err)
		fprintf(f, ";; ERROR AT OFFSET %zu/%zu: %s\n", p.offset, p.len,
		    strerror(p.err));
}

const char *
_asr_print_sockaddr(const struct sockaddr *sa, char *buf, size_t len)
{
	char	h[256];
	int	portno;
	union {
		const struct sockaddr		*sa;
		const struct sockaddr_in	*sin;
		const struct sockaddr_in6	*sin6;
	}	s;

	s.sa = sa;

	switch (sa->sa_family) {
	case AF_INET:
		inet_ntop(AF_INET, &s.sin->sin_addr, h, sizeof h);
		portno = ntohs(s.sin->sin_port);
		break;
	case AF_INET6:
		inet_ntop(AF_INET6, &s.sin6->sin6_addr, h, sizeof h);
		portno = ntohs(s.sin6->sin6_port);
		break;
	default:
		snprintf(buf, len, "?");
		return (buf);
	}

	snprintf(buf, len, "%s:%i", h, portno);
	return (buf);
}

void
_asr_dump_config(FILE *f, struct asr *a)
{
	char		 buf[256];
	int		 i;
	struct asr_ctx	*ac;
	unsigned int	 o;

	if (f == NULL)
		return;

	ac = a->a_ctx;

	fprintf(f, "--------- ASR CONFIG ---------------\n");
	fprintf(f, "DOMAIN \"%s\"\n", ac->ac_domain);
	fprintf(f, "SEARCH\n");
	for (i = 0; i < ac->ac_domcount; i++)
		fprintf(f, "   \"%s\"\n", ac->ac_dom[i]);
	fprintf(f, "OPTIONS\n");
	fprintf(f, " options:");
	o = ac->ac_options;

#define PRINTOPT(flag, n) if (o & (flag)) { fprintf(f, " " n); o &= ~(flag); }
	PRINTOPT(RES_INIT, "INIT");
	PRINTOPT(RES_DEBUG, "DEBUG");
	PRINTOPT(RES_USEVC, "USEVC");
	PRINTOPT(RES_IGNTC, "IGNTC");
	PRINTOPT(RES_RECURSE, "RECURSE");
	PRINTOPT(RES_DEFNAMES, "DEFNAMES");
	PRINTOPT(RES_STAYOPEN, "STAYOPEN");
	PRINTOPT(RES_DNSRCH, "DNSRCH");
	PRINTOPT(RES_NOALIASES, "NOALIASES");
	PRINTOPT(RES_USE_EDNS0, "USE_EDNS0");
	PRINTOPT(RES_USE_DNSSEC, "USE_DNSSEC");
	if (o)
		fprintf(f, " 0x%08x", o);
	fprintf(f, "\n");

	fprintf(f, " ndots: %i\n", ac->ac_ndots);
	fprintf(f, " family:");
	for (i = 0; ac->ac_family[i] != -1; i++)
		fprintf(f, " %s", (ac->ac_family[i] == AF_INET)?"inet4":"inet6");
	fprintf(f, "\n");
	fprintf(f, "NAMESERVERS timeout=%i retry=%i\n",
		    ac->ac_nstimeout,
		    ac->ac_nsretries);
	for (i = 0; i < ac->ac_nscount; i++)
		fprintf(f, "	%s\n", _asr_print_sockaddr(ac->ac_ns[i], buf,
		    sizeof buf));
	fprintf(f, "LOOKUP %s", ac->ac_db);
	fprintf(f, "\n------------------------------------\n");
}

#define CASE(n) case n: return #n

const char *
_asr_statestr(int state)
{
	switch (state) {
	CASE(ASR_STATE_INIT);
	CASE(ASR_STATE_NEXT_DOMAIN);
	CASE(ASR_STATE_NEXT_DB);
	CASE(ASR_STATE_SAME_DB);
	CASE(ASR_STATE_NEXT_FAMILY);
	CASE(ASR_STATE_NEXT_NS);
	CASE(ASR_STATE_UDP_SEND);
	CASE(ASR_STATE_UDP_RECV);
	CASE(ASR_STATE_TCP_WRITE);
	CASE(ASR_STATE_TCP_READ);
	CASE(ASR_STATE_PACKET);
	CASE(ASR_STATE_SUBQUERY);
	CASE(ASR_STATE_NOT_FOUND);
	CASE(ASR_STATE_HALT);
	default:
		return "?";
	}
};

const char *
_asr_querystr(int type)
{
	switch (type) {
	CASE(ASR_SEND);
	CASE(ASR_SEARCH);
	CASE(ASR_GETRRSETBYNAME);
	CASE(ASR_GETHOSTBYNAME);
	CASE(ASR_GETHOSTBYADDR);
	CASE(ASR_GETNETBYNAME);
	CASE(ASR_GETNETBYADDR);
	CASE(ASR_GETADDRINFO);
	CASE(ASR_GETNAMEINFO);
	default:
		return "?";
	}
}

const char *
_asr_transitionstr(int type)
{
	switch (type) {
	CASE(ASYNC_COND);
	CASE(ASYNC_DONE);
	default:
		return "?";
	}
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: asr_debug.c,v 1.24 2017/02/27 11:31:01 jca Exp $ */
2			/*
3			* Copyright (c) 2012 Eric Faurot <eric@openbsd.org>
4			*
5			* Permission to use, copy, modify, and distribute this software for any
6			* purpose with or without fee is hereby granted, provided that the above
7			* copyright notice and this permission notice appear in all copies.
8			*
9			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16			*/
17
18			#include <sys/types.h>
19			#include <sys/socket.h>
20			#include <netinet/in.h>
21			#include <arpa/nameser.h>
22			#include <arpa/inet.h>
23			#include <netdb.h>
24
25			#include <asr.h>
26			#include <resolv.h>
27			#include <string.h>
28
29			#include "asr_private.h"
30
31			static const char *rcodetostr(uint16_t);
32			static const char print_dname(const char , char *, size_t);
33			static const char print_header(const struct asr_dns_header , char *, size_t);
34			static const char print_query(const struct asr_dns_query , char *, size_t);
35			static const char print_rr(const struct asr_dns_rr , char *, size_t);
36
37			FILE *_asr_debug = NULL;
38
39			#define OPCODE_SHIFT 11
40
41			static const char *
42			rcodetostr(uint16_t v)
43			{
44			switch (v) {
45			case NOERROR: return "NOERROR";
46			case FORMERR: return "FORMERR";
47			case SERVFAIL: return "SERVFAIL";
48			case NXDOMAIN: return "NXDOMAIN";
49			case NOTIMP: return "NOTIMP";
50			case REFUSED: return "REFUSED";
51			default: return "?";
52			}
53			}
54
55			static const char *
56			print_dname(const char _dname, char buf, size_t max)
57			{
58			return (_asr_strdname(_dname, buf, max));
59			}
60
61			static const char *
62			print_rr(const struct asr_dns_rr rr, char buf, size_t max)
63			{
64			char *res;
65			char tmp[256];
66			char tmp2[256];
67			int r;
68
69			res = buf;
70
71			r = snprintf(buf, max, "%s %u %s %s ",
72			print_dname(rr->rr_dname, tmp, sizeof tmp),
73			rr->rr_ttl,
74			__p_class(rr->rr_class),
75			__p_type(rr->rr_type));
76			if (r == -1) {
77			buf[0] = '\0';
78			return (buf);
79			}
80
81			if ((size_t)r >= max)
82			return (buf);
83
84			max -= r;
85			buf += r;
86
87			switch (rr->rr_type) {
88			case T_CNAME:
89			print_dname(rr->rr.cname.cname, buf, max);
90			break;
91			case T_MX:
92			snprintf(buf, max, "%lu %s",
93			(unsigned long)rr->rr.mx.preference,
94			print_dname(rr->rr.mx.exchange, tmp, sizeof tmp));
95			break;
96			case T_NS:
97			print_dname(rr->rr.ns.nsname, buf, max);
98			break;
99			case T_PTR:
100			print_dname(rr->rr.ptr.ptrname, buf, max);
101			break;
102			case T_SOA:
103			snprintf(buf, max, "%s %s %lu %lu %lu %lu %lu",
104			print_dname(rr->rr.soa.rname, tmp, sizeof tmp),
105			print_dname(rr->rr.soa.mname, tmp2, sizeof tmp2),
106			(unsigned long)rr->rr.soa.serial,
107			(unsigned long)rr->rr.soa.refresh,
108			(unsigned long)rr->rr.soa.retry,
109			(unsigned long)rr->rr.soa.expire,
110			(unsigned long)rr->rr.soa.minimum);
111			break;
112			case T_A:
113			if (rr->rr_class != C_IN)
114			goto other;
115			snprintf(buf, max, "%s", inet_ntop(AF_INET,
116			&rr->rr.in_a.addr, tmp, sizeof tmp));
117			break;
118			case T_AAAA:
119			if (rr->rr_class != C_IN)
120			goto other;
121			snprintf(buf, max, "%s", inet_ntop(AF_INET6,
122			&rr->rr.in_aaaa.addr6, tmp, sizeof tmp));
123			break;
124			default:
125			other:
126			snprintf(buf, max, "(rdlen=%i)", (int)rr->rr.other.rdlen);
127			break;
128			}
129
130			return (res);
131			}
132
133			static const char *
134			print_query(const struct asr_dns_query q, char buf, size_t max)
135			{
136			char b[256];
137
138			snprintf(buf, max, "%s %s %s",
139			print_dname(q->q_dname, b, sizeof b),
140			__p_class(q->q_class), __p_type(q->q_type));
141
142			return (buf);
143			}
144
145			static const char *
146			print_header(const struct asr_dns_header h, char buf, size_t max)
147			{
148			snprintf(buf, max,
149			"id:0x%04x %s op:%i %s %s %s %s z:%i %s %s r:%s qd:%i an:%i ns:%i ar:%i",
150			((int)h->id),
151			(h->flags & QR_MASK) ? "QR":" ",
152			(int)(OPCODE(h->flags) >> OPCODE_SHIFT),
153			(h->flags & AA_MASK) ? "AA":" ",
154			(h->flags & TC_MASK) ? "TC":" ",
155			(h->flags & RD_MASK) ? "RD":" ",
156			(h->flags & RA_MASK) ? "RA":" ",
157			(h->flags & Z_MASK),
158			(h->flags & AD_MASK) ? "AD":" ",
159			(h->flags & CD_MASK) ? "CD":" ",
160			rcodetostr(RCODE(h->flags)),
161			h->qdcount, h->ancount, h->nscount, h->arcount);
162
163			return (buf);
164			}
165
166			void
167			_asr_dump_packet(FILE f, const void data, size_t len)
168			{
169			char buf[1024];
170			struct asr_unpack p;
171			struct asr_dns_header h;
172			struct asr_dns_query q;
173			struct asr_dns_rr rr;
174			int i, an, ns, ar, n;
175
176			if (f == NULL)
177			return;
178
179			_asr_unpack_init(&p, data, len);
180
181			if (_asr_unpack_header(&p, &h) == -1) {
182			fprintf(f, ";; BAD PACKET: %s\n", strerror(p.err));
183			return;
184			}
185
186			fprintf(f, ";; HEADER %s\n", print_header(&h, buf, sizeof buf));
187
188			if (h.qdcount)
189			fprintf(f, ";; QUERY SECTION:\n");
190			for (i = 0; i < h.qdcount; i++) {
191			if (_asr_unpack_query(&p, &q) == -1)
192			goto error;
193			fprintf(f, "%s\n", print_query(&q, buf, sizeof buf));
194			}
195
196			an = 0;
197			ns = an + h.ancount;
198			ar = ns + h.nscount;
199			n = ar + h.arcount;
200
201			for (i = 0; i < n; i++) {
202			if (i == an)
203			fprintf(f, "\n;; ANSWER SECTION:\n");
204			if (i == ns)
205			fprintf(f, "\n;; AUTHORITY SECTION:\n");
206			if (i == ar)
207			fprintf(f, "\n;; ADDITIONAL SECTION:\n");
208
209			if (_asr_unpack_rr(&p, &rr) == -1)
210			goto error;
211			fprintf(f, "%s\n", print_rr(&rr, buf, sizeof buf));
212			}
213
214			if (p.offset != len)
215			fprintf(f, ";; REMAINING GARBAGE %zu\n", len - p.offset);
216
217			error:
218			if (p.err)
219			fprintf(f, ";; ERROR AT OFFSET %zu/%zu: %s\n", p.offset, p.len,
220			strerror(p.err));
221			}
222
223			const char *
224			_asr_print_sockaddr(const struct sockaddr sa, char buf, size_t len)
225			{
226			char h[256];
227			int portno;
228			union {
229			const struct sockaddr *sa;
230			const struct sockaddr_in *sin;
231			const struct sockaddr_in6 *sin6;
232			} s;
233
234			s.sa = sa;
235
236			switch (sa->sa_family) {
237			case AF_INET:
238			inet_ntop(AF_INET, &s.sin->sin_addr, h, sizeof h);
239			portno = ntohs(s.sin->sin_port);
240			break;
241			case AF_INET6:
242			inet_ntop(AF_INET6, &s.sin6->sin6_addr, h, sizeof h);
243			portno = ntohs(s.sin6->sin6_port);
244			break;
245			default:
246			snprintf(buf, len, "?");
247			return (buf);
248			}
249
250			snprintf(buf, len, "%s:%i", h, portno);
251			return (buf);
252			}
253
254			void
255			_asr_dump_config(FILE f, struct asr a)
256			{
257			char buf[256];
258			int i;
259			struct asr_ctx *ac;
260			unsigned int o;
261
262			if (f == NULL)
263			return;
264
265			ac = a->a_ctx;
266
267			fprintf(f, "--------- ASR CONFIG ---------------\n");
268			fprintf(f, "DOMAIN \"%s\"\n", ac->ac_domain);
269			fprintf(f, "SEARCH\n");
270			for (i = 0; i < ac->ac_domcount; i++)
271			fprintf(f, " \"%s\"\n", ac->ac_dom[i]);
272			fprintf(f, "OPTIONS\n");
273			fprintf(f, " options:");
274			o = ac->ac_options;
275
276			#define PRINTOPT(flag, n) if (o & (flag)) { fprintf(f, " " n); o &= ~(flag); }
277			PRINTOPT(RES_INIT, "INIT");
278			PRINTOPT(RES_DEBUG, "DEBUG");
279			PRINTOPT(RES_USEVC, "USEVC");
280			PRINTOPT(RES_IGNTC, "IGNTC");
281			PRINTOPT(RES_RECURSE, "RECURSE");
282			PRINTOPT(RES_DEFNAMES, "DEFNAMES");
283			PRINTOPT(RES_STAYOPEN, "STAYOPEN");
284			PRINTOPT(RES_DNSRCH, "DNSRCH");
285			PRINTOPT(RES_NOALIASES, "NOALIASES");
286			PRINTOPT(RES_USE_EDNS0, "USE_EDNS0");
287			PRINTOPT(RES_USE_DNSSEC, "USE_DNSSEC");
288			if (o)
289			fprintf(f, " 0x%08x", o);
290			fprintf(f, "\n");
291
292			fprintf(f, " ndots: %i\n", ac->ac_ndots);
293			fprintf(f, " family:");
294			for (i = 0; ac->ac_family[i] != -1; i++)
295			fprintf(f, " %s", (ac->ac_family[i] == AF_INET)?"inet4":"inet6");
296			fprintf(f, "\n");
297			fprintf(f, "NAMESERVERS timeout=%i retry=%i\n",
298			ac->ac_nstimeout,
299			ac->ac_nsretries);
300			for (i = 0; i < ac->ac_nscount; i++)
301			fprintf(f, " %s\n", _asr_print_sockaddr(ac->ac_ns[i], buf,
302			sizeof buf));
303			fprintf(f, "LOOKUP %s", ac->ac_db);
304			fprintf(f, "\n------------------------------------\n");
305			}
306
307			#define CASE(n) case n: return #n
308
309			const char *
310			_asr_statestr(int state)
311			{
312			switch (state) {
313			CASE(ASR_STATE_INIT);
314			CASE(ASR_STATE_NEXT_DOMAIN);
315			CASE(ASR_STATE_NEXT_DB);
316			CASE(ASR_STATE_SAME_DB);
317			CASE(ASR_STATE_NEXT_FAMILY);
318			CASE(ASR_STATE_NEXT_NS);
319			CASE(ASR_STATE_UDP_SEND);
320			CASE(ASR_STATE_UDP_RECV);
321			CASE(ASR_STATE_TCP_WRITE);
322			CASE(ASR_STATE_TCP_READ);
323			CASE(ASR_STATE_PACKET);
324			CASE(ASR_STATE_SUBQUERY);
325			CASE(ASR_STATE_NOT_FOUND);
326			CASE(ASR_STATE_HALT);
327			default:
328			return "?";
329			}
330			};
331
332			const char *
333			_asr_querystr(int type)
334			{
335			switch (type) {
336			CASE(ASR_SEND);
337			CASE(ASR_SEARCH);
338			CASE(ASR_GETRRSETBYNAME);
339			CASE(ASR_GETHOSTBYNAME);
340			CASE(ASR_GETHOSTBYADDR);
341			CASE(ASR_GETNETBYNAME);
342			CASE(ASR_GETNETBYADDR);
343			CASE(ASR_GETADDRINFO);
344			CASE(ASR_GETNAMEINFO);
345			default:
346			return "?";
347			}
348			}
349
350			const char *
351			_asr_transitionstr(int type)
352			{
353			switch (type) {
354			CASE(ASYNC_COND);
355			CASE(ASYNC_DONE);
356			default:
357			return "?";
358			}
359			}