xref: /dragonfly/usr.bin/ypcat/ypcat.c (revision 1d1731fa)
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/ypcat/ypcat.c,v 1.4.2.2 2002/02/15 00:46:56 des Exp $
30  * $DragonFly: src/usr.bin/ypcat/ypcat.c,v 1.3 2003/10/04 20:36:55 hmp Exp $
31  */
32 
33 #include <sys/param.h>
34 #include <sys/types.h>
35 #include <sys/socket.h>
36 #include <ctype.h>
37 #include <err.h>
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <string.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 
48 struct 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.byaddr" },
56 	{ "protocols", "protocols.bynumber" },
57 	{ "services", "services.byname" },
58 	{ "aliases", "mail.aliases" },
59 	{ "ethers", "ethers.byname" },
60 };
61 
62 int key;
63 
64 static void
65 usage(void)
66 {
67 	fprintf(stderr, "%s\n%s\n",
68 		"usage: ypcat [-k] [-d domainname] [-t] mapname",
69 		"       ypcat -x");
70 	exit(1);
71 }
72 
73 int
74 printit(int instatus, char *inkey, int inkeylen, char *inval, int invallen,
75         char *indata)
76 {
77 	if (instatus != YP_TRUE)
78 		return (instatus);
79 	if (key)
80 		printf("%*.*s ", inkeylen, inkeylen, inkey);
81 	printf("%*.*s\n", invallen, invallen, inval);
82 	return (0);
83 }
84 
85 int
86 main(int argc, char  **argv)
87 {
88 	char *domainname = NULL;
89 	struct ypall_callback ypcb;
90 	char *inmap;
91 	int notrans;
92 	int c, r, i;
93 
94 	notrans = key = 0;
95 
96 	while ((c = getopt(argc, argv, "xd:kt")) != -1)
97 		switch (c) {
98 		case 'x':
99 			for (i = 0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
100 				printf("Use \"%s\" for \"%s\"\n",
101 					ypaliases[i].alias,
102 					ypaliases[i].name);
103 			exit(0);
104 		case 'd':
105 			domainname = optarg;
106 			break;
107 		case 't':
108 			notrans++;
109 			break;
110 		case 'k':
111 			key++;
112 			break;
113 		default:
114 			usage();
115 		}
116 
117 	if (optind + 1 != argc)
118 		usage();
119 
120 	if (!domainname)
121 		yp_get_default_domain(&domainname);
122 
123 	inmap = argv[optind];
124 	for (i = 0; (!notrans) && i<sizeof ypaliases/sizeof ypaliases[0]; i++)
125 		if (strcmp(inmap, ypaliases[i].alias) == 0)
126 			inmap = ypaliases[i].name;
127 	ypcb.foreach = printit;
128 	ypcb.data = NULL;
129 
130 	r = yp_all(domainname, inmap, &ypcb);
131 	switch (r) {
132 	case 0:
133 		break;
134 	case YPERR_YPBIND:
135 		errx(1, "not running ypbind");
136 	default:
137 		errx(1, "no such map %s. reason: %s", inmap, yperr_string(r));
138 	}
139 	exit(0);
140 }
141