xref: /dragonfly/usr.bin/ypmatch/ypmatch.c (revision 8d6aeca2)
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  * $FreeBSD: src/usr.bin/ypmatch/ypmatch.c,v 1.7.2.2 2002/02/15 00:46:56 des Exp $
30  */
31 
32 #include <sys/param.h>
33 #include <sys/types.h>
34 #include <sys/socket.h>
35 #include <ctype.h>
36 #include <err.h>
37 #include <stdio.h>
38 #include <stdlib.h>
39 #include <string.h>
40 #include <unistd.h>
41 
42 #include <rpc/rpc.h>
43 #include <rpc/xdr.h>
44 #include <rpcsvc/yp_prot.h>
45 #include <rpcsvc/ypclnt.h>
46 
47 static const struct ypalias {
48 	const char *alias, *name;
49 } ypaliases[] = {
50 	{ "passwd", "passwd.byname" },
51 	{ "master.passwd", "master.passwd.byname" },
52 	{ "group", "group.byname" },
53 	{ "networks", "networks.byaddr" },
54 	{ "hosts", "hosts.byname" },
55 	{ "protocols", "protocols.bynumber" },
56 	{ "services", "services.byname" },
57 	{ "aliases", "mail.aliases" },
58 	{ "ethers", "ethers.byname" },
59 };
60 
61 static void
62 usage(void)
63 {
64 	fprintf(stderr, "%s\n%s\n",
65 		"usage: ypmatch [-d domain] [-t] [-k] key [key ...] mname",
66 		"       ypmatch -x");
67 	exit(1);
68 }
69 
70 int
71 main(int argc, char *argv[])
72 {
73 	char *domainname = NULL;
74 	char *inkey, *inmap, *outbuf;
75 	int outbuflen, key, notrans;
76 	int c, r;
77 	u_int i;
78 
79 	notrans = key = 0;
80 
81 	while ((c = getopt(argc, argv, "xd:kt")) != -1)
82 		switch (c) {
83 		case 'x':
84 			for (i = 0; i < NELEM(ypaliases); i++)
85 				printf("Use \"%s\" for \"%s\"\n",
86 					ypaliases[i].alias,
87 					ypaliases[i].name);
88 			exit(0);
89 		case 'd':
90 			domainname = optarg;
91 			break;
92 		case 't':
93 			notrans++;
94 			break;
95 		case 'k':
96 			key++;
97 			break;
98 		default:
99 			usage();
100 		}
101 
102 	if ((argc-optind) < 2)
103 		usage();
104 
105 	if (!domainname)
106 		yp_get_default_domain(&domainname);
107 
108 	inmap = argv[argc-1];
109 	for (i = 0; (!notrans) && i < NELEM(ypaliases); i++)
110 		if (strcmp(inmap, ypaliases[i].alias) == 0)
111 			inmap = __DECONST(char *, ypaliases[i].name);
112 	for (; optind < argc-1; optind++) {
113 		inkey = argv[optind];
114 
115 		r = yp_match(domainname, inmap, inkey,
116 			strlen(inkey), &outbuf, &outbuflen);
117 		switch (r) {
118 		case 0:
119 			if (key)
120 				printf("%s ", inkey);
121 			printf("%*.*s\n", outbuflen, outbuflen, outbuf);
122 			break;
123 		case YPERR_YPBIND:
124 			errx(1, "not running ypbind");
125 		default:
126 			errx(1, "can't match key %s in map %s. reason: %s",
127 				inkey, inmap, yperr_string(r));
128 		}
129 	}
130 	exit(0);
131 }
132