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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/whois/whois.c	Lines:	0	155	0.0 %
Date:	2017-11-07	Branches:	0	141	0.0 %


/*      $OpenBSD: whois.c,v 1.56 2017/07/26 15:48:38 sthen Exp $   */

/*
 * Copyright (c) 1980, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/types.h>
#include <sys/socket.h>

#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>

#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#define	NICHOST		"whois.crsnic.net"
#define	INICHOST	"whois.networksolutions.com"
#define	CNICHOST	"whois.corenic.net"
#define	DNICHOST	"whois.nic.mil"
#define	GNICHOST	"whois.nic.gov"
#define	ANICHOST	"whois.arin.net"
#define	RNICHOST	"whois.ripe.net"
#define	PNICHOST	"whois.apnic.net"
#define	RUNICHOST	"whois.ripn.net"
#define	MNICHOST	"whois.ra.net"
#define LNICHOST	"whois.lacnic.net"
#define	AFNICHOST	"whois.afrinic.net"
#define BNICHOST	"whois.registro.br"
#define	PDBHOST		"whois.peeringdb.com"
#define	IANAHOST	"whois.iana.org"
#define	QNICHOST_TAIL	".whois-servers.net"

#define	WHOIS_PORT	"whois"
#define	WHOIS_SERVER_ID	"Registrar WHOIS Server:"

#define WHOIS_RECURSE		0x01
#define WHOIS_QUICK		0x02

const char *port_whois = WHOIS_PORT;
const char *ip_whois[] = { LNICHOST, RNICHOST, PNICHOST, BNICHOST,
    AFNICHOST, NULL };

__dead void usage(void);
int whois(const char *, const char *, const char *, int);
char *choose_server(const char *, const char *, char **);

int
main(int argc, char *argv[])
{
	int ch, flags, rval;
	char *host, *name, *country;

	country = host = NULL;
	flags = rval = 0;
	while ((ch = getopt(argc, argv, "aAc:dgh:iIlmp:PqQrR")) != -1)
		switch (ch) {
		case 'a':
			host = ANICHOST;
			break;
		case 'A':
			host = PNICHOST;
			break;
		case 'c':
			country = optarg;
			break;
		case 'd':
			host = DNICHOST;
			break;
		case 'g':
			host = GNICHOST;
			break;
		case 'h':
			host = optarg;
			break;
		case 'i':
			host = INICHOST;
			break;
		case 'I':
			host = IANAHOST;
			break;
		case 'l':
			host = LNICHOST;
			break;
		case 'm':
			host = MNICHOST;
			break;
		case 'p':
			port_whois = optarg;
			break;
		case 'P':
			host = PDBHOST;
			break;
		case 'q':
			/* deprecated, now the default */
			break;
		case 'Q':
			flags |= WHOIS_QUICK;
			break;
		case 'r':
			host = RNICHOST;
			break;
		case 'R':
			host = RUNICHOST;
			break;
		default:
			usage();
		}
	argc -= optind;
	argv += optind;

	if (!argc || (country != NULL && host != NULL))
		usage();

	if (pledge("stdio dns inet flock rpath cpath wpath", NULL) == -1)
		err(1, "pledge");

	if (host == NULL && country == NULL && !(flags & WHOIS_QUICK))
		flags |= WHOIS_RECURSE;
	for (name = *argv; (name = *argv) != NULL; argv++) {
		char *tofree = NULL;
		const char *server =
		    host ? host : choose_server(name, country, &tofree);
		rval += whois(name, server, port_whois, flags);
		free(tofree);
	}
	return (rval);
}

int
whois(const char *query, const char *server, const char *port, int flags)
{
	FILE *fp;
	char *buf, *p, *nhost, *nbuf = NULL;
	size_t len;
	int i, s, error;
	const char *reason = NULL, *fmt;
	struct addrinfo hints, *res, *ai;

	memset(&hints, 0, sizeof(hints));
	hints.ai_flags = 0;
	hints.ai_family = AF_UNSPEC;
	hints.ai_socktype = SOCK_STREAM;
	error = getaddrinfo(server, port, &hints, &res);
	if (error) {
		if (error == EAI_SERVICE)
			warnx("%s: bad port", port);
		else
			warnx("%s: %s", server, gai_strerror(error));
		return (1);
	}

	for (s = -1, ai = res; ai != NULL; ai = ai->ai_next) {
		s = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
		if (s == -1) {
			error = errno;
			reason = "socket";
			continue;
		}
		if (connect(s, ai->ai_addr, ai->ai_addrlen) == -1) {
			error = errno;
			reason = "connect";
			close(s);
			s = -1;
			continue;
		}
		break;	/*okay*/
	}
	if (s == -1) {
		if (reason) {
			errno = error;
			warn("%s: %s", server, reason);
		} else
			warn("unknown error in connection attempt");
		freeaddrinfo(res);
		return (1);
	}

	if (strcmp(server, "whois.denic.de") == 0 ||
	    strcmp(server, "de" QNICHOST_TAIL) == 0)
		fmt = "-T dn,ace -C ISO-8859-1 %s\r\n";
	else if (strcmp(server, "whois.dk-hostmaster.dk") == 0 ||
	    strcmp(server, "dk" QNICHOST_TAIL) == 0)
		fmt = "--show-handles %s\r\n";
	else
		fmt = "%s\r\n";

	fp = fdopen(s, "r+");
	if (fp == NULL)
		err(1, "fdopen");
	fprintf(fp, fmt, query);
	fflush(fp);
	nhost = NULL;
	while ((buf = fgetln(fp, &len)) != NULL) {
		p = buf + len - 1;
		if (isspace((unsigned char)*p)) {
			do
				*p = '\0';
			while (p > buf && isspace((unsigned char)*--p));
		} else {
			if ((nbuf = malloc(len + 1)) == NULL)
				err(1, "malloc");
			memcpy(nbuf, buf, len);
			nbuf[len] = '\0';
			buf = nbuf;
		}
		puts(buf);

		if (nhost != NULL || !(flags & WHOIS_RECURSE))
			continue;

		if ((p = strstr(buf, WHOIS_SERVER_ID))) {
			p += sizeof(WHOIS_SERVER_ID) - 1;
			while (isblank((unsigned char)*p))
				p++;
			if ((len = strcspn(p, " \t\n\r"))) {
				if ((nhost = malloc(len + 1)) == NULL)
					err(1, "malloc");
				memcpy(nhost, p, len);
				nhost[len] = '\0';
			}
		} else if (strcmp(server, ANICHOST) == 0) {
			for (p = buf; *p != '\0'; p++)
				*p = tolower((unsigned char)*p);
			for (i = 0; ip_whois[i] != NULL; i++) {
				if (strstr(buf, ip_whois[i]) != NULL) {
					nhost = strdup(ip_whois[i]);
					if (nhost == NULL)
						err(1, "strdup");
					break;
				}
			}
		}
	}
	fclose(fp);
	free(nbuf);

	if (nhost != NULL) {
		error = whois(query, nhost, port, 0);
		free(nhost);
	}
	freeaddrinfo(res);
	return (error);
}

/*
 * If no country is specified determine the top level domain from the query.
 * If the TLD is a number, query ARIN, otherwise, use TLD.whois-server.net.
 * If the domain does not contain '.', check to see if it is an NSI handle
 * (starts with '!') or a CORE handle (COCO-[0-9]+ or COHO-[0-9]+) or an
 * ASN (starts with AS). Fall back to NICHOST for the non-handle case.
 */
char *
choose_server(const char *name, const char *country, char **tofree)
{
	char *server;
	const char *qhead;
	char *ep;
	struct addrinfo hints, *res;

	memset(&hints, 0, sizeof(hints));
	hints.ai_flags = 0;
	hints.ai_family = AF_UNSPEC;
	hints.ai_socktype = SOCK_STREAM;

	if (country != NULL)
		qhead = country;
	else if ((qhead = strrchr(name, '.')) == NULL) {
		if (*name == '!')
			return (INICHOST);
		else if ((strncasecmp(name, "COCO-", 5) == 0 ||
		    strncasecmp(name, "COHO-", 5) == 0) &&
		    strtol(name + 5, &ep, 10) > 0 && *ep == '\0')
			return (CNICHOST);
		else if ((strncasecmp(name, "AS", 2) == 0) &&
		    strtol(name + 2, &ep, 10) > 0 && *ep == '\0')
			return (MNICHOST);
		else
			return (NICHOST);
	} else if (isdigit((unsigned char)*(++qhead)))
		return (ANICHOST);

	/*
	 * Post-2003 ("new") gTLDs are all supposed to have "whois.nic.domain"
	 * (per registry agreement), some older gTLDs also support this...
	 */
	if (asprintf(&server, "whois.nic.%s", qhead) == -1)
		err(1, NULL);

	/* most ccTLDs don't do this, but QNICHOST/whois-servers mostly works */
	if ((strlen(qhead) == 2 ||
	    /* and is required for most of the <=2003 TLDs/gTLDs */
	    strcasecmp(qhead, "org") == 0 ||
	    strcasecmp(qhead, "com") == 0 ||
	    strcasecmp(qhead, "net") == 0 ||
	    strcasecmp(qhead, "cat") == 0 ||
	    strcasecmp(qhead, "pro") == 0 ||
	    strcasecmp(qhead, "info") == 0 ||
	    strcasecmp(qhead, "aero") == 0 ||
	    strcasecmp(qhead, "jobs") == 0 ||
	    strcasecmp(qhead, "mobi") == 0 ||
	    strcasecmp(qhead, "museum") == 0 ||
	     /* for others, if whois.nic.TLD doesn't exist, try whois-servers */
	    getaddrinfo(server, NULL, &hints, &res) != 0)) {
		free(server);
		if (asprintf(&server, "%s%s", qhead, QNICHOST_TAIL) == -1)
			err(1, NULL);
	}

	*tofree = server;
	return (server);
}

__dead void
usage(void)
{
	extern char *__progname;

	fprintf(stderr,
	    "usage: %s [-AadgIilmPQRr] [-c country-code | -h host] "
		"[-p port] name ...\n", __progname);
	exit(1);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: whois.c,v 1.56 2017/07/26 15:48:38 sthen Exp $ */
2
3			/*
4			* Copyright (c) 1980, 1993
5			* The Regents of the University of California. All rights reserved.
6			*
7			* Redistribution and use in source and binary forms, with or without
8			* modification, are permitted provided that the following conditions
9			* are met:
10			* 1. Redistributions of source code must retain the above copyright
11			* notice, this list of conditions and the following disclaimer.
12			* 2. Redistributions in binary form must reproduce the above copyright
13			* notice, this list of conditions and the following disclaimer in the
14			* documentation and/or other materials provided with the distribution.
15			* 3. Neither the name of the University nor the names of its contributors
16			* may be used to endorse or promote products derived from this software
17			* without specific prior written permission.
18			*
19			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29			* SUCH DAMAGE.
30			*/
31
32			#include <sys/types.h>
33			#include <sys/socket.h>
34
35			#include <netinet/in.h>
36			#include <arpa/inet.h>
37			#include <netdb.h>
38
39			#include <ctype.h>
40			#include <err.h>
41			#include <errno.h>
42			#include <stdio.h>
43			#include <stdlib.h>
44			#include <string.h>
45			#include <unistd.h>
46
47			#define NICHOST "whois.crsnic.net"
48			#define INICHOST "whois.networksolutions.com"
49			#define CNICHOST "whois.corenic.net"
50			#define DNICHOST "whois.nic.mil"
51			#define GNICHOST "whois.nic.gov"
52			#define ANICHOST "whois.arin.net"
53			#define RNICHOST "whois.ripe.net"
54			#define PNICHOST "whois.apnic.net"
55			#define RUNICHOST "whois.ripn.net"
56			#define MNICHOST "whois.ra.net"
57			#define LNICHOST "whois.lacnic.net"
58			#define AFNICHOST "whois.afrinic.net"
59			#define BNICHOST "whois.registro.br"
60			#define PDBHOST "whois.peeringdb.com"
61			#define IANAHOST "whois.iana.org"
62			#define QNICHOST_TAIL ".whois-servers.net"
63
64			#define WHOIS_PORT "whois"
65			#define WHOIS_SERVER_ID "Registrar WHOIS Server:"
66
67			#define WHOIS_RECURSE 0x01
68			#define WHOIS_QUICK 0x02
69
70			const char *port_whois = WHOIS_PORT;
71			const char *ip_whois[] = { LNICHOST, RNICHOST, PNICHOST, BNICHOST,
72			AFNICHOST, NULL };
73
74			__dead void usage(void);
75			int whois(const char , const char , const char *, int);
76			char choose_server(const char , const char , char *);
77
78			int
79			main(int argc, char *argv[])
80			{
81			int ch, flags, rval;
82			char host, name, *country;
83
84			country = host = NULL;
85			flags = rval = 0;
86			while ((ch = getopt(argc, argv, "aAc:dgh:iIlmp:PqQrR")) != -1)
87			switch (ch) {
88			case 'a':
89			host = ANICHOST;
90			break;
91			case 'A':
92			host = PNICHOST;
93			break;
94			case 'c':
95			country = optarg;
96			break;
97			case 'd':
98			host = DNICHOST;
99			break;
100			case 'g':
101			host = GNICHOST;
102			break;
103			case 'h':
104			host = optarg;
105			break;
106			case 'i':
107			host = INICHOST;
108			break;
109			case 'I':
110			host = IANAHOST;
111			break;
112			case 'l':
113			host = LNICHOST;
114			break;
115			case 'm':
116			host = MNICHOST;
117			break;
118			case 'p':
119			port_whois = optarg;
120			break;
121			case 'P':
122			host = PDBHOST;
123			break;
124			case 'q':
125			/* deprecated, now the default */
126			break;
127			case 'Q':
128			flags \|= WHOIS_QUICK;
129			break;
130			case 'r':
131			host = RNICHOST;
132			break;
133			case 'R':
134			host = RUNICHOST;
135			break;
136			default:
137			usage();
138			}
139			argc -= optind;
140			argv += optind;
141
142			if (!argc \|\| (country != NULL && host != NULL))
143			usage();
144
145			if (pledge("stdio dns inet flock rpath cpath wpath", NULL) == -1)
146			err(1, "pledge");
147
148			if (host == NULL && country == NULL && !(flags & WHOIS_QUICK))
149			flags \|= WHOIS_RECURSE;
150			for (name = argv; (name = argv) != NULL; argv++) {
151			char *tofree = NULL;
152			const char *server =
153			host ? host : choose_server(name, country, &tofree);
154			rval += whois(name, server, port_whois, flags);
155			free(tofree);
156			}
157			return (rval);
158			}
159
160			int
161			whois(const char query, const char server, const char *port, int flags)
162			{
163			FILE *fp;
164			char buf, p, nhost, nbuf = NULL;
165			size_t len;
166			int i, s, error;
167			const char reason = NULL, fmt;
168			struct addrinfo hints, res, ai;
169
170			memset(&hints, 0, sizeof(hints));
171			hints.ai_flags = 0;
172			hints.ai_family = AF_UNSPEC;
173			hints.ai_socktype = SOCK_STREAM;
174			error = getaddrinfo(server, port, &hints, &res);
175			if (error) {
176			if (error == EAI_SERVICE)
177			warnx("%s: bad port", port);
178			else
179			warnx("%s: %s", server, gai_strerror(error));
180			return (1);
181			}
182
183			for (s = -1, ai = res; ai != NULL; ai = ai->ai_next) {
184			s = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
185			if (s == -1) {
186			error = errno;
187			reason = "socket";
188			continue;
189			}
190			if (connect(s, ai->ai_addr, ai->ai_addrlen) == -1) {
191			error = errno;
192			reason = "connect";
193			close(s);
194			s = -1;
195			continue;
196			}
197			break; /okay/
198			}
199			if (s == -1) {
200			if (reason) {
201			errno = error;
202			warn("%s: %s", server, reason);
203			} else
204			warn("unknown error in connection attempt");
205			freeaddrinfo(res);
206			return (1);
207			}
208
209			if (strcmp(server, "whois.denic.de") == 0 \|\|
210			strcmp(server, "de" QNICHOST_TAIL) == 0)
211			fmt = "-T dn,ace -C ISO-8859-1 %s\r\n";
212			else if (strcmp(server, "whois.dk-hostmaster.dk") == 0 \|\|
213			strcmp(server, "dk" QNICHOST_TAIL) == 0)
214			fmt = "--show-handles %s\r\n";
215			else
216			fmt = "%s\r\n";
217
218			fp = fdopen(s, "r+");
219			if (fp == NULL)
220			err(1, "fdopen");
221			fprintf(fp, fmt, query);
222			fflush(fp);
223			nhost = NULL;
224			while ((buf = fgetln(fp, &len)) != NULL) {
225			p = buf + len - 1;
226			if (isspace((unsigned char)*p)) {
227			do
228			*p = '\0';
229			while (p > buf && isspace((unsigned char)*--p));
230			} else {
231			if ((nbuf = malloc(len + 1)) == NULL)
232			err(1, "malloc");
233			memcpy(nbuf, buf, len);
234			nbuf[len] = '\0';
235			buf = nbuf;
236			}
237			puts(buf);
238
239			if (nhost != NULL \|\| !(flags & WHOIS_RECURSE))
240			continue;
241
242			if ((p = strstr(buf, WHOIS_SERVER_ID))) {
243			p += sizeof(WHOIS_SERVER_ID) - 1;
244			while (isblank((unsigned char)*p))
245			p++;
246			if ((len = strcspn(p, " \t\n\r"))) {
247			if ((nhost = malloc(len + 1)) == NULL)
248			err(1, "malloc");
249			memcpy(nhost, p, len);
250			nhost[len] = '\0';
251			}
252			} else if (strcmp(server, ANICHOST) == 0) {
253			for (p = buf; *p != '\0'; p++)
254			p = tolower((unsigned char)p);
255			for (i = 0; ip_whois[i] != NULL; i++) {
256			if (strstr(buf, ip_whois[i]) != NULL) {
257			nhost = strdup(ip_whois[i]);
258			if (nhost == NULL)
259			err(1, "strdup");
260			break;
261			}
262			}
263			}
264			}
265			fclose(fp);
266			free(nbuf);
267
268			if (nhost != NULL) {
269			error = whois(query, nhost, port, 0);
270			free(nhost);
271			}
272			freeaddrinfo(res);
273			return (error);
274			}
275
276			/*
277			* If no country is specified determine the top level domain from the query.
278			* If the TLD is a number, query ARIN, otherwise, use TLD.whois-server.net.
279			* If the domain does not contain '.', check to see if it is an NSI handle
280			* (starts with '!') or a CORE handle (COCO-[0-9]+ or COHO-[0-9]+) or an
281			* ASN (starts with AS). Fall back to NICHOST for the non-handle case.
282			*/
283			char *
284			choose_server(const char name, const char country, char **tofree)
285			{
286			char *server;
287			const char *qhead;
288			char *ep;
289			struct addrinfo hints, *res;
290
291			memset(&hints, 0, sizeof(hints));
292			hints.ai_flags = 0;
293			hints.ai_family = AF_UNSPEC;
294			hints.ai_socktype = SOCK_STREAM;
295
296			if (country != NULL)
297			qhead = country;
298			else if ((qhead = strrchr(name, '.')) == NULL) {
299			if (*name == '!')
300			return (INICHOST);
301			else if ((strncasecmp(name, "COCO-", 5) == 0 \|\|
302			strncasecmp(name, "COHO-", 5) == 0) &&
303			strtol(name + 5, &ep, 10) > 0 && *ep == '\0')
304			return (CNICHOST);
305			else if ((strncasecmp(name, "AS", 2) == 0) &&
306			strtol(name + 2, &ep, 10) > 0 && *ep == '\0')
307			return (MNICHOST);
308			else
309			return (NICHOST);
310			} else if (isdigit((unsigned char)*(++qhead)))
311			return (ANICHOST);
312
313			/*
314			* Post-2003 ("new") gTLDs are all supposed to have "whois.nic.domain"
315			* (per registry agreement), some older gTLDs also support this...
316			*/
317			if (asprintf(&server, "whois.nic.%s", qhead) == -1)
318			err(1, NULL);
319
320			/* most ccTLDs don't do this, but QNICHOST/whois-servers mostly works */
321			if ((strlen(qhead) == 2 \|\|
322			/* and is required for most of the <=2003 TLDs/gTLDs */
323			strcasecmp(qhead, "org") == 0 \|\|
324			strcasecmp(qhead, "com") == 0 \|\|
325			strcasecmp(qhead, "net") == 0 \|\|
326			strcasecmp(qhead, "cat") == 0 \|\|
327			strcasecmp(qhead, "pro") == 0 \|\|
328			strcasecmp(qhead, "info") == 0 \|\|
329			strcasecmp(qhead, "aero") == 0 \|\|
330			strcasecmp(qhead, "jobs") == 0 \|\|
331			strcasecmp(qhead, "mobi") == 0 \|\|
332			strcasecmp(qhead, "museum") == 0 \|\|
333			/* for others, if whois.nic.TLD doesn't exist, try whois-servers */
334			getaddrinfo(server, NULL, &hints, &res) != 0)) {
335			free(server);
336			if (asprintf(&server, "%s%s", qhead, QNICHOST_TAIL) == -1)
337			err(1, NULL);
338			}
339
340			*tofree = server;
341			return (server);
342			}
343
344			__dead void
345			usage(void)
346			{
347			extern char *__progname;
348
349			fprintf(stderr,
350			"usage: %s [-AadgIilmPQRr] [-c country-code \| -h host] "
351			"[-p port] name ...\n", __progname);
352			exit(1);
353			}