1 /* 2 * Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote 14 * products derived from this software without specific prior written 15 * permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 18 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef LINT 31 static char rcsid[] = "ypset.c,v 1.3 1993/06/12 00:02:37 deraadt Exp"; 32 #endif 33 34 #include <sys/param.h> 35 #include <sys/types.h> 36 #include <sys/socket.h> 37 #include <stdio.h> 38 #include <netdb.h> 39 #include <rpc/rpc.h> 40 #include <rpc/xdr.h> 41 #include <rpcsvc/yp_prot.h> 42 #include <rpcsvc/ypclnt.h> 43 #include <arpa/inet.h> 44 45 extern bool_t xdr_domainname(); 46 47 usage() 48 { 49 fprintf(stderr, "Usage:\n"); 50 fprintf(stderr, "\typset [-h host ] [-d domain] server\n"); 51 exit(1); 52 } 53 54 bind_tohost(sin, dom, server) 55 struct sockaddr_in *sin; 56 char *dom, *server; 57 { 58 struct ypbind_setdom ypsd; 59 struct timeval tv; 60 struct hostent *hp; 61 CLIENT *client; 62 int sock, port; 63 int r; 64 unsigned long server_addr; 65 66 if( (port=htons(getrpcport(server, YPPROG, YPPROC_NULL, IPPROTO_UDP))) == 0) { 67 fprintf(stderr, "%s not running ypserv.\n", server); 68 exit(1); 69 } 70 71 bzero(&ypsd, sizeof ypsd); 72 73 if( (hp = gethostbyname (server)) != NULL ) { 74 /* is this the most compatible way?? */ 75 bcopy (hp->h_addr_list[0], &ypsd.ypsetdom_addr, 76 sizeof (ypsd.ypsetdom_addr)); 77 } else if( (long)(server_addr = inet_addr (server)) == -1) { 78 fprintf(stderr, "can't find address for %s\n", server); 79 exit(1); 80 } else 81 bcopy (&server_addr, &ypsd.ypsetdom_addr, 82 sizeof (server_addr)); 83 84 strncpy(ypsd.ypsetdom_domain, dom, sizeof ypsd.ypsetdom_domain); 85 ypsd.ypsetdom_port = port; 86 ypsd.ypsetdom_vers = YPVERS; 87 88 tv.tv_sec = 15; 89 tv.tv_usec = 0; 90 sock = RPC_ANYSOCK; 91 client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock); 92 if (client==NULL) { 93 fprintf(stderr, "can't yp_bind: Reason: %s\n", 94 yperr_string(YPERR_YPBIND)); 95 return YPERR_YPBIND; 96 } 97 client->cl_auth = authunix_create_default(); 98 99 r = clnt_call(client, YPBINDPROC_SETDOM, 100 xdr_ypbind_setdom, &ypsd, xdr_void, NULL, tv); 101 if(r) { 102 fprintf(stderr, "Sorry, cannot ypset for domain %s on host.\n", dom); 103 clnt_destroy(client); 104 return YPERR_YPBIND; 105 } 106 clnt_destroy(client); 107 return 0; 108 } 109 110 int 111 main(argc, argv) 112 char **argv; 113 { 114 struct sockaddr_in sin; 115 struct hostent *hent; 116 extern char *optarg; 117 extern int optind; 118 char *domainname; 119 int c; 120 121 yp_get_default_domain(&domainname); 122 123 bzero(&sin, sizeof sin); 124 sin.sin_family = AF_INET; 125 sin.sin_addr.s_addr = htonl(0x7f000001); 126 127 while( (c=getopt(argc, argv, "h:d:")) != -1) 128 switch(c) { 129 case 'd': 130 domainname = optarg; 131 break; 132 case 'h': 133 if( (sin.sin_addr.s_addr=inet_addr(optarg)) == -1) { 134 hent = gethostbyname(optarg); 135 if(hent==NULL) { 136 fprintf(stderr, "ypset: host %s unknown\n", 137 optarg); 138 exit(1); 139 } 140 bcopy(&hent->h_addr_list[0], &sin.sin_addr, 141 sizeof sin.sin_addr); 142 } 143 break; 144 default: 145 usage(); 146 } 147 148 if(optind + 1 != argc ) 149 usage(); 150 151 if (bind_tohost(&sin, domainname, argv[optind])) 152 exit(1); 153 exit(0); 154 } 155