ypmatch.c revision 27345 
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 char rcsid[] = "ypmatch.c,v 1.2 1993/05/16 02:49:03 deraadt Exp";
32#endif
33
34#include <sys/param.h>
35#include <sys/types.h>
36#include <sys/socket.h>
37#include <stdio.h>
38#include <ctype.h>
39
40#include <rpc/rpc.h>
41#include <rpc/xdr.h>
42#include <rpcsvc/yp_prot.h>
43#include <rpcsvc/ypclnt.h>
44
45struct ypalias {
46	char *alias, *name;
47} ypaliases[] = {
48	{ "passwd", "passwd.byname" },
49	{ "master.passwd", "master.passwd.byname" },
50	{ "group", "group.byname" },
51	{ "networks", "networks.byaddr" },
52	{ "hosts", "hosts.byname" },
53	{ "protocols", "protocols.bynumber" },
54	{ "services", "services.byname" },
55	{ "aliases", "mail.aliases" },
56	{ "ethers", "ethers.byname" },
57};
58
59usage()
60{
61	fprintf(stderr, "Usage:\n");
62	fprintf(stderr, "\typmatch [-d domain] [-t] [-k] key [key ...] mname\n");
63	fprintf(stderr, "\typmatch -x\n");
64	fprintf(stderr, "where\n");
65	fprintf(stderr, "\tmname may be either a mapname or a nickname for a map\n");
66	fprintf(stderr, "\t-t inhibits map nickname translation\n");
67	fprintf(stderr, "\t-k prints keys as well as values.\n");
68	fprintf(stderr, "\t-x dumps the map nickname translation table.\n");
69	exit(1);
70}
71
72int
73main(argc, argv)
74char **argv;
75{
76	char *domainname;
77	char *inkey, *inmap, *outbuf;
78	extern char *optarg;
79	extern int optind;
80	int outbuflen, key, notrans;
81	int c, r, i;
82
83	notrans = key = 0;
84	yp_get_default_domain(&domainname);
85
86	while( (c=getopt(argc, argv, "xd:kt")) != -1)
87		switch(c) {
88		case 'x':
89			for(i=0; i<sizeof ypaliases/sizeof ypaliases[0]; 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++;
99			break;
100		case 'k':
101			key++;
102			break;
103		default:
104			usage();
105		}
106
107	if( (argc-optind) < 2 )
108		usage();
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			fprintf(stderr, "yp_match: not running ypbind\n");
127			exit(1);
128		default:
129			fprintf(stderr, "Can't match key %s in map %s. Reason: %s\n",
130				inkey, inmap, yperr_string(r));
131			exit(1);
132			break;
133		}
134	}
135	exit(0);
136}
137