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
48static 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
63static int key;
64
65static void
66usage(void)
67{
68	fprintf(stderr, "%s\n%s\n",
69	    "usage: ypcat [-kt] [-d domainname] mapname",
70	    "       ypcat -x");
71	exit(1);
72}
73
74static int
75printit(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
86int
87main(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