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 * $FreeBSD: src/usr.sbin/ypset/ypset.c,v 1.5.2.2 2002/02/15 00:47:00 des Exp $ 30 * $DragonFly: src/usr.sbin/ypset/ypset.c,v 1.3 2005/11/24 22:23:03 swildner Exp $ 31 */ 32 33 #include <err.h> 34 #include <netdb.h> 35 #include <stdio.h> 36 #include <string.h> 37 #include <unistd.h> 38 #include <sys/param.h> 39 #include <sys/types.h> 40 #include <sys/socket.h> 41 #include <rpc/rpc.h> 42 #include <rpc/xdr.h> 43 #include <rpcsvc/yp.h> 44 struct dom_binding{}; 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 xdr_ypbind_setdom, &ypsd, xdr_void, NULL, tv); 102 if (r) { 103 warnx("sorry, cannot ypset for domain %s on host", dom); 104 clnt_destroy(client); 105 return (YPERR_YPBIND); 106 } 107 clnt_destroy(client); 108 return (0); 109 } 110 111 int 112 main(int argc, 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 errx(1, "host %s unknown", optarg); 137 bcopy(&hent->h_addr_list[0], &sin.sin_addr, 138 sizeof sin.sin_addr); 139 } 140 break; 141 default: 142 usage(); 143 } 144 145 if (optind + 1 != argc) 146 usage(); 147 148 if (bind_tohost(&sin, domainname, argv[optind])) 149 exit(1); 150 exit(0); 151 } 152