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 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <err.h> 34 #include <netdb.h> 35 #include <stdio.h> 36 #include <stdlib.h> 37 #include <string.h> 38 #include <unistd.h> 39 #include <sys/param.h> 40 #include <sys/types.h> 41 #include <sys/socket.h> 42 #include <rpc/rpc.h> 43 #include <rpc/xdr.h> 44 #include <rpcsvc/yp.h> 45 #include <rpcsvc/ypclnt.h> 46 #include <arpa/inet.h> 47 48 extern bool_t xdr_domainname(); 49 50 static void 51 usage(void) 52 { 53 fprintf(stderr, "usage: ypset [-h host] [-d domain] server\n"); 54 exit(1); 55 } 56 57 int 58 bind_tohost(struct sockaddr_in *sin, char *dom, char *server) 59 { 60 struct ypbind_setdom ypsd; 61 struct timeval tv; 62 struct hostent *hp; 63 CLIENT *client; 64 int sock, port; 65 int r; 66 unsigned long server_addr; 67 68 if ((port = htons(getrpcport(server, YPPROG, YPPROC_NULL, IPPROTO_UDP))) == 0) 69 errx(1, "%s not running ypserv", server); 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], 76 (u_long *)&ypsd.ypsetdom_binding.ypbind_binding_addr, 77 sizeof (unsigned long)); 78 } else if ((long)(server_addr = inet_addr (server)) == -1) { 79 errx(1, "can't find address for %s", server); 80 } else 81 bcopy (&server_addr, 82 (u_long *)&ypsd.ypsetdom_binding.ypbind_binding_addr, 83 sizeof (server_addr)); 84 85 /* strncpy(ypsd.ypsetdom_domain, dom, sizeof ypsd.ypsetdom_domain); */ 86 ypsd.ypsetdom_domain = dom; 87 *(u_long *)&ypsd.ypsetdom_binding.ypbind_binding_port = port; 88 ypsd.ypsetdom_vers = YPVERS; 89 90 tv.tv_sec = 15; 91 tv.tv_usec = 0; 92 sock = RPC_ANYSOCK; 93 client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock); 94 if (client == NULL) { 95 warnx("can't yp_bind, reason: %s", yperr_string(YPERR_YPBIND)); 96 return (YPERR_YPBIND); 97 } 98 client->cl_auth = authunix_create_default(); 99 100 r = clnt_call(client, YPBINDPROC_SETDOM, 101 (xdrproc_t)xdr_ypbind_setdom, &ypsd, 102 (xdrproc_t)xdr_void, NULL, tv); 103 if (r) { 104 warnx("sorry, cannot ypset for domain %s on host - make sure ypbind was started with -ypset or -ypsetme", dom); 105 clnt_destroy(client); 106 return (YPERR_YPBIND); 107 } 108 clnt_destroy(client); 109 return (0); 110 } 111 112 int 113 main(int argc, char *argv[]) 114 { 115 struct sockaddr_in sin; 116 struct hostent *hent; 117 char *domainname; 118 int c; 119 120 yp_get_default_domain(&domainname); 121 122 bzero(&sin, sizeof sin); 123 sin.sin_family = AF_INET; 124 sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK); 125 126 while ((c = getopt(argc, argv, "h:d:")) != -1) 127 switch (c) { 128 case 'd': 129 domainname = optarg; 130 break; 131 case 'h': 132 if ((sin.sin_addr.s_addr = inet_addr(optarg)) == -1) { 133 hent = gethostbyname(optarg); 134 if (hent == NULL) 135 errx(1, "host %s unknown", optarg); 136 bcopy(hent->h_addr_list[0], &sin.sin_addr, 137 sizeof sin.sin_addr); 138 } 139 break; 140 default: 141 usage(); 142 } 143 144 if (optind + 1 != argc) 145 usage(); 146 147 if (bind_tohost(&sin, domainname, argv[optind])) 148 exit(1); 149 exit(0); 150 } 151