xref: /freebsd/usr.bin/ypcat/ypcat.c (revision 7661de35d15f582ab33e3bd6b8d909601557e436)
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 #include <sys/cdefs.h>
31 
32 __FBSDID("$FreeBSD$");
33 
34 #include <sys/param.h>
35 #include <sys/types.h>
36 #include <sys/socket.h>
37 
38 #include <rpc/rpc.h>
39 #include <rpc/xdr.h>
40 #include <rpcsvc/yp_prot.h>
41 #include <rpcsvc/ypclnt.h>
42 
43 #include <ctype.h>
44 #include <err.h>
45 #include <stdio.h>
46 #include <stdlib.h>
47 #include <string.h>
48 #include <unistd.h>
49 
50 struct ypalias {
51 	char *alias, *name;
52 } ypaliases[] = {
53 	{ "passwd", "passwd.byname" },
54 	{ "master.passwd", "master.passwd.byname" },
55 	{ "shadow", "shadow.byname" },
56 	{ "group", "group.byname" },
57 	{ "networks", "networks.byaddr" },
58 	{ "hosts", "hosts.byaddr" },
59 	{ "protocols", "protocols.bynumber" },
60 	{ "services", "services.byname" },
61 	{ "aliases", "mail.aliases" },
62 	{ "ethers", "ethers.byname" },
63 };
64 
65 int key;
66 
67 static void
68 usage(void)
69 {
70 	fprintf(stderr, "%s\n%s\n",
71 		"usage: ypcat [-kt] [-d domainname] mapname",
72 		"       ypcat -x");
73 	exit(1);
74 }
75 
76 static int
77 printit(unsigned long instatus, char *inkey, int inkeylen, char *inval, int invallen, void *dummy __unused)
78 {
79 	if (instatus != YP_TRUE)
80 		return (instatus);
81 	if (key)
82 		printf("%*.*s ", inkeylen, inkeylen, inkey);
83 	printf("%*.*s\n", invallen, invallen, inval);
84 	return (0);
85 }
86 
87 int
88 main(int argc, char *argv[])
89 {
90 	char *domainname = NULL;
91 	struct ypall_callback ypcb;
92 	char *inmap;
93 	int notrans;
94 	int c, r;
95 	u_int i;
96 
97 	notrans = key = 0;
98 
99 	while ((c = getopt(argc, argv, "xd:kt")) != -1)
100 		switch (c) {
101 		case 'x':
102 			for (i = 0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
103 				printf("Use \"%s\" for \"%s\"\n",
104 					ypaliases[i].alias,
105 					ypaliases[i].name);
106 			exit(0);
107 		case 'd':
108 			domainname = optarg;
109 			break;
110 		case 't':
111 			notrans++;
112 			break;
113 		case 'k':
114 			key++;
115 			break;
116 		default:
117 			usage();
118 		}
119 
120 	if (optind + 1 != argc)
121 		usage();
122 
123 	if (!domainname)
124 		yp_get_default_domain(&domainname);
125 
126 	inmap = argv[optind];
127 	for (i = 0; (!notrans) && i<sizeof ypaliases/sizeof ypaliases[0]; i++)
128 		if (strcmp(inmap, ypaliases[i].alias) == 0)
129 			inmap = ypaliases[i].name;
130 	ypcb.foreach = printit;
131 	ypcb.data = NULL;
132 
133 	r = yp_all(domainname, inmap, &ypcb);
134 	switch (r) {
135 	case 0:
136 		break;
137 	case YPERR_YPBIND:
138 		errx(1, "not running ypbind");
139 	default:
140 		errx(1, "no such map %s. reason: %s", inmap, yperr_string(r));
141 	}
142 	exit(0);
143 }
144