ypmatch.c revision 50477 
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#ifndef lint
31static const char rcsid[] =
32  "$FreeBSD: head/usr.bin/ypmatch/ypmatch.c 50477 1999-08-28 01:08:13Z peter $";
33#endif /* not lint */
34
35#include <sys/param.h>
36#include <sys/types.h>
37#include <sys/socket.h>
38#include <ctype.h>
39#include <err.h>
40#include <stdio.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
49struct ypalias {
50	char *alias, *name;
51} ypaliases[] = {
52	{ "passwd", "passwd.byname" },
53	{ "master.passwd", "master.passwd.byname" },
54	{ "group", "group.byname" },
55	{ "networks", "networks.byaddr" },
56	{ "hosts", "hosts.byname" },
57	{ "protocols", "protocols.bynumber" },
58	{ "services", "services.byname" },
59	{ "aliases", "mail.aliases" },
60	{ "ethers", "ethers.byname" },
61};
62
63static void
64usage()
65{
66	fprintf(stderr, "%s\n%s\n",
67		"usage: ypmatch [-d domain] [-t] [-k] key [key ...] mname",
68		"       ypmatch -x");
69	exit(1);
70}
71
72int
73main(argc, argv)
74char **argv;
75{
76	char *domainname = NULL;
77	char *inkey, *inmap, *outbuf;
78	int outbuflen, key, notrans;
79	int c, r, i;
80
81	notrans = key = 0;
82
83	while( (c=getopt(argc, argv, "xd:kt")) != -1)
84		switch(c) {
85		case 'x':
86			for(i=0; i<sizeof ypaliases/sizeof ypaliases[0]; 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++;
96			break;
97		case 'k':
98			key++;
99			break;
100		default:
101			usage();
102		}
103
104	if( (argc-optind) < 2 )
105		usage();
106
107	if (!domainname)
108		yp_get_default_domain(&domainname);
109
110	inmap = argv[argc-1];
111	for(i=0; (!notrans) && i<sizeof ypaliases/sizeof ypaliases[0]; i++)
112		if( strcmp(inmap, ypaliases[i].alias) == 0)
113			inmap = ypaliases[i].name;
114	for(; optind < argc-1; optind++) {
115		inkey = argv[optind];
116
117		r = yp_match(domainname, inmap, inkey,
118			strlen(inkey), &outbuf, &outbuflen);
119		switch(r) {
120		case 0:
121			if(key)
122				printf("%s ", inkey);
123			printf("%*.*s\n", outbuflen, outbuflen, outbuf);
124			break;
125		case YPERR_YPBIND:
126			errx(1, "not running ypbind");
127		default:
128			errx(1, "can't match key %s in map %s. reason: %s",
129				inkey, inmap, yperr_string(r));
130		}
131	}
132	exit(0);
133}
134