ypmatch.c revision 28894 
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	"$Id$";
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 <unistd.h>
42
43#include <rpc/rpc.h>
44#include <rpc/xdr.h>
45#include <rpcsvc/yp_prot.h>
46#include <rpcsvc/ypclnt.h>
47
48struct ypalias {
49	char *alias, *name;
50} ypaliases[] = {
51	{ "passwd", "passwd.byname" },
52	{ "master.passwd", "master.passwd.byname" },
53	{ "group", "group.byname" },
54	{ "networks", "networks.byaddr" },
55	{ "hosts", "hosts.byname" },
56	{ "protocols", "protocols.bynumber" },
57	{ "services", "services.byname" },
58	{ "aliases", "mail.aliases" },
59	{ "ethers", "ethers.byname" },
60};
61
62static void
63usage()
64{
65	fprintf(stderr, "%s\n%s\n",
66		"usage: ypmatch [-d domain] [-t] [-k] key [key ...] mname",
67		"       ypmatch -x");
68	exit(1);
69}
70
71int
72main(argc, argv)
73char **argv;
74{
75	char *domainname = NULL;
76	char *inkey, *inmap, *outbuf;
77	int outbuflen, key, notrans;
78	int c, r, i;
79
80	notrans = key = 0;
81
82	while( (c=getopt(argc, argv, "xd:kt")) != -1)
83		switch(c) {
84		case 'x':
85			for(i=0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
86				printf("Use \"%s\" for \"%s\"\n",
87					ypaliases[i].alias,
88					ypaliases[i].name);
89			exit(0);
90		case 'd':
91			domainname = optarg;
92			break;
93		case 't':
94			notrans++;
95			break;
96		case 'k':
97			key++;
98			break;
99		default:
100			usage();
101		}
102
103	if( (argc-optind) < 2 )
104		usage();
105
106	if (!domainname)
107		yp_get_default_domain(&domainname);
108
109	inmap = argv[argc-1];
110	for(i=0; (!notrans) && i<sizeof ypaliases/sizeof ypaliases[0]; i++)
111		if( strcmp(inmap, ypaliases[i].alias) == 0)
112			inmap = ypaliases[i].name;
113	for(; optind < argc-1; optind++) {
114		inkey = argv[optind];
115
116		r = yp_match(domainname, inmap, inkey,
117			strlen(inkey), &outbuf, &outbuflen);
118		switch(r) {
119		case 0:
120			if(key)
121				printf("%s ", inkey);
122			printf("%*.*s\n", outbuflen, outbuflen, outbuf);
123			break;
124		case YPERR_YPBIND:
125			errx(1, "not running ypbind");
126		default:
127			errx(1, "can't match key %s in map %s. reason: %s",
128				inkey, inmap, yperr_string(r));
129		}
130	}
131	exit(0);
132}
133