1/*	$OpenBSD: ypcat.c,v 1.20 2015/11/11 02:52:46 deraadt Exp $ */
2
3/*
4 * Copyright (c) 1992, 1993, 1996 Theo de Raadt <deraadt@theos.com>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
17 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/types.h>
30#include <sys/socket.h>
31#include <unistd.h>
32#include <string.h>
33#include <stdio.h>
34#include <stdlib.h>
35#include <ctype.h>
36
37#include <rpc/rpc.h>
38#include <rpc/xdr.h>
39#include <rpcsvc/yp.h>
40#include <rpcsvc/ypclnt.h>
41
42void	usage(void);
43int	printit(u_long, char *, int, char *, int, void *);
44
45struct ypalias {
46	char *alias, *name;
47} ypaliases[] = {
48	{ "passwd", "passwd.byname" },
49	{ "master.passwd", "master.passwd.byname" },
50	{ "group", "group.byname" },
51	{ "networks", "networks.byaddr" },
52	{ "hosts", "hosts.byaddr" },
53	{ "protocols", "protocols.bynumber" },
54	{ "services", "services.byname" },
55	{ "aliases", "mail.aliases" },
56	{ "ethers", "ethers.byname" },
57};
58
59int key;
60
61void
62usage(void)
63{
64	fprintf(stderr,
65	    "usage: ypcat [-kt] [-d domainname] mapname\n"
66	    "       ypcat -x\n");
67	exit(1);
68}
69
70int
71printit(u_long instatus, char *inkey, int inkeylen, char *inval, int invallen,
72    void *indata)
73{
74	if (instatus != YP_TRUE)
75		return instatus;
76	if (key)
77		printf("%*.*s ", inkeylen, inkeylen, inkey);
78	printf("%*.*s\n", invallen, invallen, inval);
79	return 0;
80}
81
82int
83main(int argc, char *argv[])
84{
85	char *domain = NULL, *inmap;
86	struct ypall_callback ypcb;
87	extern char *optarg;
88	extern int optind;
89	int notrans, c, r, i;
90
91	if (pledge("stdio rpath inet getpw", NULL) == -1) {
92		perror("pledge");
93		exit(1);
94	}
95
96	notrans = key = 0;
97	while ((c=getopt(argc, argv, "xd:kt")) != -1)
98		switch (c) {
99		case 'x':
100			for (i=0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
101				printf("Use \"%s\" for \"%s\"\n",
102				    ypaliases[i].alias, ypaliases[i].name);
103			exit(0);
104		case 'd':
105			domain = optarg;
106			break;
107		case 't':
108			notrans = 1;
109			break;
110		case 'k':
111			key = 1;
112			break;
113		default:
114			usage();
115		}
116
117	if (optind + 1 != argc )
118		usage();
119
120	if (!domain)
121		yp_get_default_domain(&domain);
122
123	inmap = argv[optind];
124	if (!notrans) {
125		for (i=0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
126			if (strcmp(inmap, ypaliases[i].alias) == 0)
127				inmap = ypaliases[i].name;
128	}
129	ypcb.foreach = printit;
130	ypcb.data = NULL;
131
132	r = yp_all(domain, inmap, &ypcb);
133	switch (r) {
134	case 0:
135		break;
136	case YPERR_YPBIND:
137		fprintf(stderr, "ypcat: not running ypbind\n");
138		exit(1);
139	default:
140		fprintf(stderr, "No such map %s. Reason: %s\n",
141		    inmap, yperr_string(r));
142		exit(1);
143	}
144	exit(0);
145}
146