1/*	$OpenBSD: ypcat.c,v 1.16 2015/02/08 23:40:35 deraadt Exp $ */
2
3/*-
4 * SPDX-License-Identifier: BSD-2-Clause-NetBSD
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#include <sys/cdefs.h>
32
33__FBSDID("$FreeBSD: stable/11/usr.bin/ypcat/ypcat.c 330449 2018-03-05 07:26:05Z eadler $");
34
35#include <sys/param.h>
36#include <sys/types.h>
37#include <sys/socket.h>
38
39#include <ctype.h>
40#include <err.h>
41#include <stdio.h>
42#include <stdlib.h>
43#include <string.h>
44#include <unistd.h>
45
46#include <rpc/rpc.h>
47#include <rpc/xdr.h>
48#include <rpcsvc/yp.h>
49#include <rpcsvc/ypclnt.h>
50
51static const struct ypalias {
52	char *alias, *name;
53} ypaliases[] = {
54	{ "passwd", "passwd.byname" },
55	{ "master.passwd", "master.passwd.byname" },
56	{ "shadow", "shadow.byname" },
57	{ "group", "group.byname" },
58	{ "networks", "networks.byaddr" },
59	{ "hosts", "hosts.byaddr" },
60	{ "protocols", "protocols.bynumber" },
61	{ "services", "services.byname" },
62	{ "aliases", "mail.aliases" },
63	{ "ethers", "ethers.byname" },
64};
65
66static int key;
67
68static void
69usage(void)
70{
71	fprintf(stderr, "%s\n%s\n",
72	    "usage: ypcat [-kt] [-d domainname] mapname",
73	    "       ypcat -x");
74	exit(1);
75}
76
77static int
78printit(u_long instatus, char *inkey, int inkeylen, char *inval, int invallen,
79    void *indata)
80{
81	if (instatus != YP_TRUE)
82		return (instatus);
83	if (key)
84		printf("%*.*s ", inkeylen, inkeylen, inkey);
85	printf("%*.*s\n", invallen, invallen, inval);
86	return (0);
87}
88
89int
90main(int argc, char *argv[])
91{
92	char *domain = NULL, *inmap;
93	struct ypall_callback ypcb;
94	int c, notrans, r;
95	u_int i;
96
97	notrans = key = 0;
98	while ((c = getopt(argc, argv, "xd:kt")) != -1)
99		switch (c) {
100		case 'x':
101			for (i = 0; i < nitems(ypaliases); i++)
102				printf("Use \"%s\" for \"%s\"\n",
103				    ypaliases[i].alias, ypaliases[i].name);
104			exit(0);
105		case 'd':
106			domain = optarg;
107			break;
108		case 't':
109			notrans = 1;
110			break;
111		case 'k':
112			key = 1;
113			break;
114		default:
115			usage();
116		}
117
118	if (optind + 1 != argc)
119		usage();
120
121	if (domain == NULL)
122		yp_get_default_domain(&domain);
123
124	inmap = argv[optind];
125	if (notrans == 0) {
126		for (i = 0; i < nitems(ypaliases); i++)
127			if (strcmp(inmap, ypaliases[i].alias) == 0)
128				inmap = ypaliases[i].name;
129	}
130	ypcb.foreach = printit;
131	ypcb.data = NULL;
132
133	r = yp_all(domain, 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",
141		    inmap, yperr_string(r));
142	}
143	exit(0);
144}
145