1 /* $OpenBSD: ypcat.c,v 1.16 2015/02/08 23:40:35 deraadt Exp $ */
2
3 /*-
4 * SPDX-License-Identifier: BSD-2-Clause
5 *
6 * Copyright (c) 1992, 1993, 1996 Theo de Raadt <deraadt@theos.com>
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
19 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31
32 #include <sys/param.h>
33 #include <sys/types.h>
34 #include <sys/socket.h>
35
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.h>
46 #include <rpcsvc/ypclnt.h>
47
48 static const struct ypalias {
49 char *alias, *name;
50 } ypaliases[] = {
51 { "passwd", "passwd.byname" },
52 { "master.passwd", "master.passwd.byname" },
53 { "shadow", "shadow.byname" },
54 { "group", "group.byname" },
55 { "networks", "networks.byaddr" },
56 { "hosts", "hosts.byaddr" },
57 { "protocols", "protocols.bynumber" },
58 { "services", "services.byname" },
59 { "aliases", "mail.aliases" },
60 { "ethers", "ethers.byname" },
61 };
62
63 static int key;
64
65 static void
usage(void)66 usage(void)
67 {
68 fprintf(stderr, "%s\n%s\n",
69 "usage: ypcat [-kt] [-d domainname] mapname",
70 " ypcat -x");
71 exit(1);
72 }
73
74 static int
printit(u_long instatus,char * inkey,int inkeylen,char * inval,int invallen,void * indata)75 printit(u_long instatus, char *inkey, int inkeylen, char *inval, int invallen,
76 void *indata)
77 {
78 if (instatus != YP_TRUE)
79 return (instatus);
80 if (key)
81 printf("%*.*s ", inkeylen, inkeylen, inkey);
82 printf("%*.*s\n", invallen, invallen, inval);
83 return (0);
84 }
85
86 int
main(int argc,char * argv[])87 main(int argc, char *argv[])
88 {
89 char *domain = NULL, *inmap;
90 struct ypall_callback ypcb;
91 int c, notrans, r;
92 u_int i;
93
94 notrans = key = 0;
95 while ((c = getopt(argc, argv, "xd:kt")) != -1)
96 switch (c) {
97 case 'x':
98 for (i = 0; i < nitems(ypaliases); i++)
99 printf("Use \"%s\" for \"%s\"\n",
100 ypaliases[i].alias, ypaliases[i].name);
101 exit(0);
102 case 'd':
103 domain = optarg;
104 break;
105 case 't':
106 notrans = 1;
107 break;
108 case 'k':
109 key = 1;
110 break;
111 default:
112 usage();
113 }
114
115 if (optind + 1 != argc)
116 usage();
117
118 if (domain == NULL)
119 yp_get_default_domain(&domain);
120
121 inmap = argv[optind];
122 if (notrans == 0) {
123 for (i = 0; i < nitems(ypaliases); i++)
124 if (strcmp(inmap, ypaliases[i].alias) == 0)
125 inmap = ypaliases[i].name;
126 }
127 ypcb.foreach = printit;
128 ypcb.data = NULL;
129
130 r = yp_all(domain, 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",
138 inmap, yperr_string(r));
139 }
140 exit(0);
141 }
142