ypmatch.c revision 121550 
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.
28 */
29
30#include <sys/cdefs.h>
31
32__FBSDID("$FreeBSD: head/usr.bin/ypmatch/ypmatch.c 121550 2003-10-26 05:28:01Z peter $");
33
34#include <sys/param.h>
35#include <sys/types.h>
36#include <sys/socket.h>
37
38#include <rpc/rpc.h>
39#include <rpc/xdr.h>
40#include <rpcsvc/yp_prot.h>
41#include <rpcsvc/ypclnt.h>
42
43#include <ctype.h>
44#include <err.h>
45#include <stdio.h>
46#include <stdlib.h>
47#include <string.h>
48#include <unistd.h>
49
50struct ypalias {
51	char *alias, *name;
52} ypaliases[] = {
53	{ "passwd", "passwd.byname" },
54	{ "master.passwd", "master.passwd.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 [-d domain] [-t] [-k] key [key ...] mname",
69		"       ypmatch -x");
70	exit(1);
71}
72
73int
74main(int argc, char *argv[])
75{
76	char *domainname = NULL;
77	char *inkey, *inmap, *outbuf;
78	int outbuflen, key, notrans;
79	int c, r;
80	u_int i;
81
82	notrans = key = 0;
83
84	while ((c = getopt(argc, argv, "xd:kt")) != -1)
85		switch (c) {
86		case 'x':
87			for (i = 0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
88				printf("Use \"%s\" for \"%s\"\n",
89					ypaliases[i].alias,
90					ypaliases[i].name);
91			exit(0);
92		case 'd':
93			domainname = optarg;
94			break;
95		case 't':
96			notrans++;
97			break;
98		case 'k':
99			key++;
100			break;
101		default:
102			usage();
103		}
104
105	if ((argc-optind) < 2)
106		usage();
107
108	if (!domainname)
109		yp_get_default_domain(&domainname);
110
111	inmap = argv[argc-1];
112	for (i = 0; (!notrans) && i<sizeof ypaliases/sizeof ypaliases[0]; i++)
113		if (strcmp(inmap, ypaliases[i].alias) == 0)
114			inmap = ypaliases[i].name;
115	for (; optind < argc-1; optind++) {
116		inkey = argv[optind];
117
118		r = yp_match(domainname, inmap, inkey,
119			strlen(inkey), &outbuf, &outbuflen);
120		switch (r) {
121		case 0:
122			if (key)
123				printf("%s ", inkey);
124			printf("%*.*s\n", outbuflen, outbuflen, outbuf);
125			break;
126		case YPERR_YPBIND:
127			errx(1, "not running ypbind");
128		default:
129			errx(1, "can't match key %s in map %s. reason: %s",
130				inkey, inmap, yperr_string(r));
131		}
132	}
133	exit(0);
134}
135