1 /* 2 * Copyright (c) 1992, 1993 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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Theo de Raadt. 16 * 4. The name of the author may not be used to endorse or promote 17 * products derived from this software without specific prior written 18 * permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 21 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 22 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 24 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #ifndef LINT 34 static char rcsid[] = "ypset.c,v 1.3 1993/06/12 00:02:37 deraadt Exp"; 35 #endif 36 37 #include <sys/param.h> 38 #include <sys/types.h> 39 #include <sys/socket.h> 40 #include <stdio.h> 41 #include <netdb.h> 42 #include <rpc/rpc.h> 43 #include <rpc/xdr.h> 44 #include <rpcsvc/yp_prot.h> 45 #include <rpcsvc/ypclnt.h> 46 #include <arpa/inet.h> 47 48 extern bool_t xdr_domainname(); 49 50 usage() 51 { 52 fprintf(stderr, "Usage:\n"); 53 fprintf(stderr, "\typset [-h host ] [-d domain] server\n"); 54 exit(1); 55 } 56 57 bind_tohost(sin, dom, server) 58 struct sockaddr_in *sin; 59 char *dom, *server; 60 { 61 struct ypbind_setdom ypsd; 62 struct timeval tv; 63 struct hostent *hp; 64 CLIENT *client; 65 int sock, port; 66 int r; 67 unsigned long server_addr; 68 69 if( (port=htons(getrpcport(server, YPPROG, YPPROC_NULL, IPPROTO_UDP))) == 0) { 70 fprintf(stderr, "%s not running ypserv.\n", server); 71 exit(1); 72 } 73 74 bzero(&ypsd, sizeof ypsd); 75 76 if( (hp = gethostbyname (server)) != NULL ) { 77 /* is this the most compatible way?? */ 78 bcopy (hp->h_addr_list[0], &ypsd.ypsetdom_addr, 79 sizeof (ypsd.ypsetdom_addr)); 80 } else if( (long)(server_addr = inet_addr (server)) == -1) { 81 fprintf(stderr, "can't find address for %s\n", server); 82 exit(1); 83 } else 84 bcopy (&server_addr, &ypsd.ypsetdom_addr, 85 sizeof (server_addr)); 86 87 strncpy(ypsd.ypsetdom_domain, dom, sizeof ypsd.ypsetdom_domain); 88 ypsd.ypsetdom_port = port; 89 ypsd.ypsetdom_vers = YPVERS; 90 91 tv.tv_sec = 15; 92 tv.tv_usec = 0; 93 sock = RPC_ANYSOCK; 94 client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock); 95 if (client==NULL) { 96 fprintf(stderr, "can't yp_bind: Reason: %s\n", 97 yperr_string(YPERR_YPBIND)); 98 return YPERR_YPBIND; 99 } 100 client->cl_auth = authunix_create_default(); 101 102 r = clnt_call(client, YPBINDPROC_SETDOM, 103 xdr_ypbind_setdom, &ypsd, xdr_void, NULL, tv); 104 if(r) { 105 fprintf(stderr, "Sorry, cannot ypset for domain %s on host.\n", dom); 106 clnt_destroy(client); 107 return YPERR_YPBIND; 108 } 109 clnt_destroy(client); 110 return 0; 111 } 112 113 int 114 main(argc, argv) 115 char **argv; 116 { 117 struct sockaddr_in sin; 118 struct hostent *hent; 119 extern char *optarg; 120 extern int optind; 121 char *domainname; 122 int c; 123 124 yp_get_default_domain(&domainname); 125 126 bzero(&sin, sizeof sin); 127 sin.sin_family = AF_INET; 128 sin.sin_addr.s_addr = htonl(0x7f000001); 129 130 while( (c=getopt(argc, argv, "h:d:")) != -1) 131 switch(c) { 132 case 'd': 133 domainname = optarg; 134 break; 135 case 'h': 136 if( (sin.sin_addr.s_addr=inet_addr(optarg)) == -1) { 137 hent = gethostbyname(optarg); 138 if(hent==NULL) { 139 fprintf(stderr, "ypset: host %s unknown\n", 140 optarg); 141 exit(1); 142 } 143 bcopy(&hent->h_addr_list[0], &sin.sin_addr, 144 sizeof sin.sin_addr); 145 } 146 break; 147 default: 148 usage(); 149 } 150 151 if(optind + 1 != argc ) 152 usage(); 153 154 if (bind_tohost(&sin, domainname, argv[optind])) 155 exit(1); 156 exit(0); 157 } 158