1/*	$OpenBSD: ypmatch.c,v 1.16 2015/02/08 23:40:35 deraadt Exp $ */
2/*	$NetBSD: ypmatch.c,v 1.8 1996/05/07 01:24:52 jtc Exp $	*/
3
4/*-
5 * SPDX-License-Identifier: BSD-2-Clause
6 *
7 * Copyright (c) 1992, 1993, 1996 Theo de Raadt <deraadt@theos.com>
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
20 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
23 * 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
33#include <sys/param.h>
34#include <sys/types.h>
35#include <sys/socket.h>
36
37#include <ctype.h>
38#include <err.h>
39#include <stdio.h>
40#include <stdlib.h>
41#include <string.h>
42#include <unistd.h>
43
44#include <rpc/rpc.h>
45#include <rpc/xdr.h>
46#include <rpcsvc/yp_prot.h>
47#include <rpcsvc/ypclnt.h>
48
49static const struct ypalias {
50	char *alias, *name;
51} ypaliases[] = {
52	{ "passwd", "passwd.byname" },
53	{ "master.passwd", "master.passwd.byname" },
54	{ "shadow", "shadow.byname" },
55	{ "group", "group.byname" },
56	{ "networks", "networks.byaddr" },
57	{ "hosts", "hosts.byname" },
58	{ "protocols", "protocols.bynumber" },
59	{ "services", "services.byname" },
60	{ "aliases", "mail.aliases" },
61	{ "ethers", "ethers.byname" },
62};
63
64static void
65usage(void)
66{
67	fprintf(stderr, "%s\n%s\n",
68	    "usage: ypmatch [-kt] [-d domainname] key ... mapname",
69	    "       ypmatch -x");
70	exit(1);
71}
72
73int
74main(int argc, char *argv[])
75{
76	char *domainname, *inkey, *inmap, *outbuf;
77	int outbuflen, key, notrans, rval;
78	int c, r;
79	u_int i;
80
81	domainname = NULL;
82	notrans = key = 0;
83	while ((c = getopt(argc, argv, "xd:kt")) != -1)
84		switch (c) {
85		case 'x':
86			for (i = 0; i < nitems(ypaliases); i++)
87				printf("Use \"%s\" for \"%s\"\n",
88					ypaliases[i].alias,
89					ypaliases[i].name);
90			exit(0);
91		case 'd':
92			domainname = optarg;
93			break;
94		case 't':
95			notrans = 1;
96			break;
97		case 'k':
98			key = 1;
99			break;
100		default:
101			usage();
102		}
103
104	if (argc - optind < 2)
105		usage();
106
107	if (domainname == NULL)
108		yp_get_default_domain(&domainname);
109
110	inmap = argv[argc-1];
111	if (notrans == 0) {
112		for (i = 0; i < nitems(ypaliases); i++)
113			if (strcmp(inmap, ypaliases[i].alias) == 0)
114				inmap = ypaliases[i].name;
115	}
116
117	rval = 0;
118	for (; optind < argc - 1; optind++) {
119		inkey = argv[optind];
120
121		r = yp_match(domainname, inmap, inkey,
122			strlen(inkey), &outbuf, &outbuflen);
123		switch (r) {
124		case 0:
125			if (key)
126				printf("%s: ", inkey);
127			printf("%*.*s\n", outbuflen, outbuflen, outbuf);
128			break;
129		case YPERR_YPBIND:
130			errx(1, "not running ypbind");
131		default:
132			errx(1, "can't match key %s in map %s. reason: %s",
133			    inkey, inmap, yperr_string(r));
134			rval = 1;
135			break;
136		}
137	}
138	exit(rval);
139}
140