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-NetBSD
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#include <sys/cdefs.h>
33
34__FBSDID("$FreeBSD$");
35
36#include <sys/param.h>
37#include <sys/types.h>
38#include <sys/socket.h>
39
40#include <ctype.h>
41#include <err.h>
42#include <stdio.h>
43#include <stdlib.h>
44#include <string.h>
45#include <unistd.h>
46
47#include <rpc/rpc.h>
48#include <rpc/xdr.h>
49#include <rpcsvc/yp_prot.h>
50#include <rpcsvc/ypclnt.h>
51
52static const struct ypalias {
53	char *alias, *name;
54} ypaliases[] = {
55	{ "passwd", "passwd.byname" },
56	{ "master.passwd", "master.passwd.byname" },
57	{ "shadow", "shadow.byname" },
58	{ "group", "group.byname" },
59	{ "networks", "networks.byaddr" },
60	{ "hosts", "hosts.byname" },
61	{ "protocols", "protocols.bynumber" },
62	{ "services", "services.byname" },
63	{ "aliases", "mail.aliases" },
64	{ "ethers", "ethers.byname" },
65};
66
67static void
68usage(void)
69{
70	fprintf(stderr, "%s\n%s\n",
71	    "usage: ypmatch [-kt] [-d domainname] key ... mapname",
72	    "       ypmatch -x");
73	exit(1);
74}
75
76int
77main(int argc, char *argv[])
78{
79	char *domainname, *inkey, *inmap, *outbuf;
80	int outbuflen, key, notrans, rval;
81	int c, r;
82	u_int i;
83
84	domainname = NULL;
85	notrans = key = 0;
86	while ((c = getopt(argc, argv, "xd:kt")) != -1)
87		switch (c) {
88		case 'x':
89			for (i = 0; i < nitems(ypaliases); i++)
90				printf("Use \"%s\" for \"%s\"\n",
91					ypaliases[i].alias,
92					ypaliases[i].name);
93			exit(0);
94		case 'd':
95			domainname = optarg;
96			break;
97		case 't':
98			notrans = 1;
99			break;
100		case 'k':
101			key = 1;
102			break;
103		default:
104			usage();
105		}
106
107	if (argc - optind < 2)
108		usage();
109
110	if (domainname == NULL)
111		yp_get_default_domain(&domainname);
112
113	inmap = argv[argc-1];
114	if (notrans == 0) {
115		for (i = 0; i < nitems(ypaliases); i++)
116			if (strcmp(inmap, ypaliases[i].alias) == 0)
117				inmap = ypaliases[i].name;
118	}
119
120	rval = 0;
121	for (; optind < argc - 1; optind++) {
122		inkey = argv[optind];
123
124		r = yp_match(domainname, inmap, inkey,
125			strlen(inkey), &outbuf, &outbuflen);
126		switch (r) {
127		case 0:
128			if (key)
129				printf("%s: ", inkey);
130			printf("%*.*s\n", outbuflen, outbuflen, outbuf);
131			break;
132		case YPERR_YPBIND:
133			errx(1, "not running ypbind");
134		default:
135			errx(1, "can't match key %s in map %s. reason: %s",
136			    inkey, inmap, yperr_string(r));
137			rval = 1;
138			break;
139		}
140	}
141	exit(rval);
142}
143