[dragonfly.git] / usr.bin / ypwhich / ypwhich.c

/*
 * Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca>
 * 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. The name of the author may not be used to endorse or promote
 *    products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 *
 * $FreeBSD: src/usr.bin/ypwhich/ypwhich.c,v 1.11.2.1 2002/02/15 00:46:56 des Exp $
 * $DragonFly: src/usr.bin/ypwhich/ypwhich.c,v 1.3 2003/10/04 20:36:55 hmp Exp $
 */

#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <ctype.h>
#include <err.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <rpc/rpc.h>
#include <rpc/xdr.h>
#include <rpcsvc/yp.h>
struct dom_binding{};
#include <rpcsvc/ypclnt.h>

#define ERR_USAGE	1	/* bad arguments - display 'usage' message */
#define ERR_NOSUCHHOST	2	/* no such host */
#define ERR_NOBINDING	3	/* error from ypbind -- domain not bound */
#define ERR_NOYPBIND	4	/* ypbind not running */
#define ERR_NOMASTER	5	/* could not find master server */

extern bool_t xdr_domainname();

struct ypalias {
	char *alias, *name;
} ypaliases[] = {
	{ "passwd", "passwd.byname" },
	{ "master.passwd", "master.passwd.byname" },
	{ "group", "group.byname" },
	{ "networks", "networks.byaddr" },
	{ "hosts", "hosts.byaddr" },
	{ "protocols", "protocols.bynumber" },
	{ "services", "services.byname" },
	{ "aliases", "mail.aliases" },
	{ "ethers", "ethers.byname" },
};

static void
usage(void)
{
	fprintf(stderr, "%s\n%s\n",
		"usage: ypwhich [-d domain] [[-t] -m [mname] | host]",
		"       ypwhich -x");
	exit(ERR_USAGE);
}


/*
 * Like yp_bind except can query a specific host
 */
int
bind_host(char *dom, struct sockaddr_in *sin)
{
	struct hostent *hent = NULL;
	struct ypbind_resp ypbr;
	struct timeval tv;
	CLIENT *client;
	int sock, r;
	struct in_addr ss_addr;

	sock = RPC_ANYSOCK;
	tv.tv_sec = 15;
	tv.tv_usec = 0;
	client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock);
	if (client == NULL) {
		warnx("can't clntudp_create: %s", yperr_string(YPERR_YPBIND));
		return (YPERR_YPBIND);
	}

	tv.tv_sec = 5;
	tv.tv_usec = 0;
	r = clnt_call(client, YPBINDPROC_DOMAIN,
		xdr_domainname, &dom, xdr_ypbind_resp, &ypbr, tv);
	if (r != RPC_SUCCESS) {
		warnx("can't clnt_call: %s", yperr_string(YPERR_YPBIND));
		clnt_destroy(client);
		return (YPERR_YPBIND);
	} else {
		if (ypbr.ypbind_status != YPBIND_SUCC_VAL) {
			warnx("can't yp_bind: reason: %s",
				ypbinderr_string(ypbr.ypbind_resp_u.ypbind_error));
			clnt_destroy(client);
			return (r);
		}
	}
	clnt_destroy(client);

	ss_addr = *(struct in_addr *)ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_addr;
	/*printf("%08x\n", ss_addr);*/
	hent = gethostbyaddr(&ss_addr, sizeof(ss_addr), AF_INET);
	if (hent)
		printf("%s\n", hent->h_name);
	else
		printf("%s\n", inet_ntoa(ss_addr));
	return (0);
}

int
main(int argc, char **argv)
{
	char *domainname = NULL, *master, *map = NULL;
	struct ypmaplist *ypml, *y;
	struct hostent *hent;
	struct sockaddr_in sin;
	int notrans, mode, getmap;
	int c, r, i;

	getmap = notrans = mode = 0;
	while ((c = getopt(argc, argv, "xd:mt")) != -1)
		switch (c) {
		case 'x':
			for (i = 0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
				printf("\"%s\" is an alias for \"%s\"\n",
					ypaliases[i].alias,
					ypaliases[i].name);
			exit(0);
		case 'd':
			domainname = optarg;
			break;
		case 't':
			notrans++;
			break;
		case 'm':
			mode++;
			break;
		default:
			usage();
		}

	if (!domainname)
		yp_get_default_domain(&domainname);

	if (mode == 0) {
		switch (argc-optind) {
		case 0:
			bzero(&sin, sizeof sin);
			sin.sin_family = AF_INET;
			sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);

			if (bind_host(domainname, &sin))
				exit(ERR_NOBINDING);
			break;
		case 1:
			bzero(&sin, sizeof sin);
			sin.sin_family = AF_INET;
			if ((sin.sin_addr.s_addr = inet_addr(argv[optind])) == -1) {
				hent = gethostbyname(argv[optind]);
				if (!hent)
					errx(ERR_NOSUCHHOST, "host %s unknown", argv[optind]);
				bcopy((char *)hent->h_addr_list[0],
					(char *)&sin.sin_addr, sizeof sin.sin_addr);
			}
			if (bind_host(domainname, &sin))
				exit(ERR_NOBINDING);
			break;
		default:
			usage();
		}
		exit(0);
	}

	if (argc-optind > 1)
		usage();

	if (argv[optind]) {
		map = argv[optind];
		for (i = 0; (!notrans) && i<sizeof ypaliases/sizeof ypaliases[0]; i++)
			if (strcmp(map, ypaliases[i].alias) == 0)
				map = ypaliases[i].name;
		r = yp_master(domainname, map, &master);
		switch (r) {
		case 0:
			printf("%s\n", master);
			free(master);
			break;
		case YPERR_YPBIND:
			errx(ERR_NOYPBIND, "not running ypbind");
		default:
			errx(ERR_NOMASTER, "can't find master for map %s. reason: %s",
				map, yperr_string(r));
		}
		exit(0);
	}

	ypml = NULL;
	r = yp_maplist(domainname, &ypml);
	switch (r) {
	case 0:
		for (y = ypml; y;) {
			ypml = y;
			r = yp_master(domainname, ypml->map, &master);
			switch (r) {
			case 0:
				printf("%s %s\n", ypml->map, master);
				free(master);
				break;
			default:
				warnx("can't find the master of %s: reason: %s",
					ypml->map, yperr_string(r));
				break;
			}
			y = ypml->next;
			free(ypml);
		}
		break;
	case YPERR_YPBIND:
		errx(ERR_NOYPBIND, "not running ypbind");
	default:
		errx(ERR_NOMASTER, "can't get map list for domain %s. reason: %s",
			domainname, yperr_string(r));
	}
	exit(0);
}
Commit	Line	Data
984263bc MD	1	/*
	2	* Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca>
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. The name of the author may not be used to endorse or promote
	14	* products derived from this software without specific prior written
	15	* permission.
	16	*
	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
	18	* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	19	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	20	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
	21	* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	22	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	23	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	24	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	25	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	26	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	27	* SUCH DAMAGE.
1de703da MD	28	*
1de703da MD	29	* $FreeBSD: src/usr.bin/ypwhich/ypwhich.c,v 1.11.2.1 2002/02/15 00:46:56 des Exp $
1d1731fa	30	* $DragonFly: src/usr.bin/ypwhich/ypwhich.c,v 1.3 2003/10/04 20:36:55 hmp Exp $
984263bc MD	31	*/
984263bc MD	32
984263bc MD	33	#include <sys/param.h>
	34	#include <sys/types.h>
	35	#include <sys/socket.h>
	36	#include <netinet/in.h>
	37	#include <arpa/inet.h>
	38	#include <ctype.h>
	39	#include <err.h>
	40	#include <netdb.h>
	41	#include <stdio.h>
	42	#include <stdlib.h>
	43	#include <string.h>
	44	#include <unistd.h>
	45	#include <rpc/rpc.h>
	46	#include <rpc/xdr.h>
	47	#include <rpcsvc/yp.h>
	48	struct dom_binding{};
	49	#include <rpcsvc/ypclnt.h>
	50
	51	#define ERR_USAGE 1 /* bad arguments - display 'usage' message */
	52	#define ERR_NOSUCHHOST 2 /* no such host */
	53	#define ERR_NOBINDING 3 /* error from ypbind -- domain not bound */
	54	#define ERR_NOYPBIND 4 /* ypbind not running */
	55	#define ERR_NOMASTER 5 /* could not find master server */
	56
	57	extern bool_t xdr_domainname();
	58
	59	struct ypalias {
	60	char alias, name;
	61	} ypaliases[] = {
	62	{ "passwd", "passwd.byname" },
	63	{ "master.passwd", "master.passwd.byname" },
	64	{ "group", "group.byname" },
	65	{ "networks", "networks.byaddr" },
	66	{ "hosts", "hosts.byaddr" },
	67	{ "protocols", "protocols.bynumber" },
	68	{ "services", "services.byname" },
	69	{ "aliases", "mail.aliases" },
	70	{ "ethers", "ethers.byname" },
	71	};
	72
	73	static void
1d1731fa	74	usage(void)
984263bc MD	75	{
	76	fprintf(stderr, "%s\n%s\n",
	77	"usage: ypwhich [-d domain] [[-t] -m [mname] \| host]",
	78	" ypwhich -x");
	79	exit(ERR_USAGE);
	80	}
	81
	82
	83	/*
	84	* Like yp_bind except can query a specific host
	85	*/
	86	int
1d1731fa	87	bind_host(char dom, struct sockaddr_in sin)
984263bc MD	88	{
	89	struct hostent *hent = NULL;
	90	struct ypbind_resp ypbr;
	91	struct timeval tv;
	92	CLIENT *client;
	93	int sock, r;
	94	struct in_addr ss_addr;
	95
	96	sock = RPC_ANYSOCK;
	97	tv.tv_sec = 15;
	98	tv.tv_usec = 0;
	99	client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock);
	100	if (client == NULL) {
	101	warnx("can't clntudp_create: %s", yperr_string(YPERR_YPBIND));
	102	return (YPERR_YPBIND);
	103	}
	104
	105	tv.tv_sec = 5;
	106	tv.tv_usec = 0;
	107	r = clnt_call(client, YPBINDPROC_DOMAIN,
	108	xdr_domainname, &dom, xdr_ypbind_resp, &ypbr, tv);
	109	if (r != RPC_SUCCESS) {
	110	warnx("can't clnt_call: %s", yperr_string(YPERR_YPBIND));
	111	clnt_destroy(client);
	112	return (YPERR_YPBIND);
	113	} else {
	114	if (ypbr.ypbind_status != YPBIND_SUCC_VAL) {
	115	warnx("can't yp_bind: reason: %s",
	116	ypbinderr_string(ypbr.ypbind_resp_u.ypbind_error));
	117	clnt_destroy(client);
	118	return (r);
	119	}
	120	}
	121	clnt_destroy(client);
	122
	123	ss_addr = (struct in_addr )ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_addr;
	124	/printf("%08x\n", ss_addr);/
15b85273	125	hent = gethostbyaddr(&ss_addr, sizeof(ss_addr), AF_INET);
984263bc MD	126	if (hent)
	127	printf("%s\n", hent->h_name);
	128	else
	129	printf("%s\n", inet_ntoa(ss_addr));
	130	return (0);
	131	}
	132
	133	int
1d1731fa	134	main(int argc, char **argv)
984263bc MD	135	{
	136	char domainname = NULL, master, *map = NULL;
	137	struct ypmaplist ypml, y;
	138	struct hostent *hent;
	139	struct sockaddr_in sin;
	140	int notrans, mode, getmap;
	141	int c, r, i;
	142
	143	getmap = notrans = mode = 0;
	144	while ((c = getopt(argc, argv, "xd:mt")) != -1)
	145	switch (c) {
	146	case 'x':
	147	for (i = 0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
	148	printf("\"%s\" is an alias for \"%s\"\n",
	149	ypaliases[i].alias,
	150	ypaliases[i].name);
	151	exit(0);
	152	case 'd':
	153	domainname = optarg;
	154	break;
	155	case 't':
	156	notrans++;
	157	break;
	158	case 'm':
	159	mode++;
	160	break;
	161	default:
	162	usage();
	163	}
	164
	165	if (!domainname)
	166	yp_get_default_domain(&domainname);
	167
	168	if (mode == 0) {
	169	switch (argc-optind) {
	170	case 0:
	171	bzero(&sin, sizeof sin);
	172	sin.sin_family = AF_INET;
	173	sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
	174
	175	if (bind_host(domainname, &sin))
	176	exit(ERR_NOBINDING);
	177	break;
	178	case 1:
	179	bzero(&sin, sizeof sin);
	180	sin.sin_family = AF_INET;
	181	if ((sin.sin_addr.s_addr = inet_addr(argv[optind])) == -1) {
	182	hent = gethostbyname(argv[optind]);
	183	if (!hent)
	184	errx(ERR_NOSUCHHOST, "host %s unknown", argv[optind]);
	185	bcopy((char *)hent->h_addr_list[0],
	186	(char *)&sin.sin_addr, sizeof sin.sin_addr);
	187	}
	188	if (bind_host(domainname, &sin))
	189	exit(ERR_NOBINDING);
	190	break;
	191	default:
	192	usage();
	193	}
	194	exit(0);
	195	}
	196
	197	if (argc-optind > 1)
	198	usage();
199
200	if (argv[optind]) {
201	map = argv[optind];
202	for (i = 0; (!notrans) && i<sizeof ypaliases/sizeof ypaliases[0]; i++)
203	if (strcmp(map, ypaliases[i].alias) == 0)
204	map = ypaliases[i].name;
205	r = yp_master(domainname, map, &master);
206	switch (r) {
207	case 0:
208	printf("%s\n", master);
209	free(master);
210	break;
211	case YPERR_YPBIND:
212	errx(ERR_NOYPBIND, "not running ypbind");
213	default:
214	errx(ERR_NOMASTER, "can't find master for map %s. reason: %s",
215	map, yperr_string(r));
216	}
217	exit(0);
218	}
219
220	ypml = NULL;
221	r = yp_maplist(domainname, &ypml);
222	switch (r) {
223	case 0:
224	for (y = ypml; y;) {
225	ypml = y;
226	r = yp_master(domainname, ypml->map, &master);
227	switch (r) {
228	case 0:
229	printf("%s %s\n", ypml->map, master);
230	free(master);
231	break;
232	default:
233	warnx("can't find the master of %s: reason: %s",
234	ypml->map, yperr_string(r));
235	break;
236	}
237	y = ypml->next;
238	free(ypml);
239	}
240	break;
241	case YPERR_YPBIND:
242	errx(ERR_NOYPBIND, "not running ypbind");
243	default:
244	errx(ERR_NOMASTER, "can't get map list for domain %s. reason: %s",
245	domainname, yperr_string(r));
246	}
247	exit(0);
248	}