1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/* $OpenBSD: ypset.c,v 1.15 2006/04/03 20:11:22 deraadt Exp $ */
/* $NetBSD: ypset.c,v 1.8 1996/05/13 02:46:33 thorpej Exp $ */
/*
* Copyright (c) 1992, 1993 Theo de Raadt <deraadt@theos.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char rcsid[] = "$OpenBSD: ypset.c,v 1.15 2006/04/03 20:11:22 deraadt Exp $";
#endif
#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <netdb.h>
#include <rpc/rpc.h>
#include <rpc/xdr.h>
#include <rpcsvc/yp.h>
#include <rpcsvc/ypclnt.h>
#include <arpa/inet.h>
static void
usage(void)
{
fprintf(stderr, "usage: ypset [-h host ] [-d domain] server\n");
exit(1);
}
static int
bind_tohost(struct sockaddr_in *sin, char *dom, char *server)
{
struct ypbind_setdom ypsd;
struct in_addr iaddr;
struct hostent *hp;
struct timeval tv;
CLIENT *client;
int sock, port, r;
port = getrpcport(server, YPPROG, YPPROC_NULL, IPPROTO_UDP);
if (port == 0) {
fprintf(stderr, "%s not running ypserv.\n", server);
exit(1);
}
port = htons(port);
memset(&ypsd, 0, sizeof ypsd);
if (inet_aton(server, &iaddr) == 0) {
hp = gethostbyname(server);
if (hp == NULL) {
fprintf(stderr, "ypset: can't find address for %s\n", server);
exit(1);
}
memmove(&iaddr.s_addr, hp->h_addr, sizeof(iaddr.s_addr));
}
ypsd.ypsetdom_domain = dom;
bcopy(&iaddr.s_addr, &ypsd.ypsetdom_binding.ypbind_binding_addr,
sizeof(ypsd.ypsetdom_binding.ypbind_binding_addr));
bcopy(&port, &ypsd.ypsetdom_binding.ypbind_binding_port,
sizeof(ypsd.ypsetdom_binding.ypbind_binding_port));
ypsd.ypsetdom_vers = YPVERS;
tv.tv_sec = 15;
tv.tv_usec = 0;
sock = RPC_ANYSOCK;
client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock);
if (client==NULL) {
fprintf(stderr, "can't yp_bind: Reason: %s\n",
yperr_string(YPERR_YPBIND));
return YPERR_YPBIND;
}
client->cl_auth = authunix_create_default();
r = clnt_call(client, YPBINDPROC_SETDOM,
xdr_ypbind_setdom, &ypsd, xdr_void, NULL, tv);
if (r) {
fprintf(stderr, "Sorry, cannot ypset for domain %s on host.\n", dom);
clnt_destroy(client);
return YPERR_YPBIND;
}
clnt_destroy(client);
return 0;
}
int
main(int argc, char *argv[])
{
struct sockaddr_in sin;
struct hostent *hent;
extern char *optarg;
extern int optind;
char *domainname;
int c;
yp_get_default_domain(&domainname);
bzero(&sin, sizeof sin);
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
while ((c = getopt(argc, argv, "h:d:")) != -1)
switch(c) {
case 'd':
domainname = optarg;
break;
case 'h':
if (inet_aton(optarg, &sin.sin_addr) == 0) {
hent = gethostbyname(optarg);
if (hent == NULL) {
fprintf(stderr, "ypset: host %s unknown\n",
optarg);
exit(1);
}
bcopy(hent->h_addr, &sin.sin_addr,
sizeof(sin.sin_addr));
}
break;
default:
usage();
}
if (optind + 1 != argc )
usage();
if (bind_tohost(&sin, domainname, argv[optind]))
exit(1);
exit(0);
}
|
