1 /* $NetBSD: ypset.c,v 1.13 2001/02/19 23:22:53 cgd Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 Theo de Raadt <deraadt@fsa.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Theo de Raadt. 18 * 4. The name of the author may not be used to endorse or promote 19 * products derived from this software without specific prior written 20 * permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 23 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 26 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 #ifndef lint 37 __RCSID("$NetBSD: ypset.c,v 1.13 2001/02/19 23:22:53 cgd Exp $"); 38 #endif 39 40 #include <sys/param.h> 41 #include <sys/types.h> 42 #include <sys/socket.h> 43 #include <stdio.h> 44 #include <string.h> 45 #include <stdlib.h> 46 #include <unistd.h> 47 #include <err.h> 48 #include <netdb.h> 49 50 #include <rpc/rpc.h> 51 #include <rpc/xdr.h> 52 #include <rpcsvc/yp_prot.h> 53 #include <rpcsvc/ypclnt.h> 54 #include <arpa/inet.h> 55 56 int main __P((int, char *[])); 57 static void usage __P((void)); 58 static void gethostaddr __P((const char *, struct in_addr *)); 59 static int bind_tohost __P((struct sockaddr_in *, char *, char *)); 60 61 int 62 main(argc, argv) 63 int argc; 64 char *argv[]; 65 { 66 struct sockaddr_in sin; 67 char *domainname; 68 int c; 69 70 yp_get_default_domain(&domainname); 71 72 (void) memset(&sin, 0, sizeof sin); 73 sin.sin_family = AF_INET; 74 sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK); 75 76 while ((c = getopt(argc, argv, "h:d:")) != -1) { 77 switch(c) { 78 case 'd': 79 domainname = optarg; 80 break; 81 82 case 'h': 83 gethostaddr(optarg, &sin.sin_addr); 84 break; 85 86 default: 87 usage(); 88 } 89 } 90 91 if (domainname == NULL) 92 errx(1, "YP domain name not set"); 93 94 argc -= optind; 95 argv += optind; 96 97 if (argc != 1) 98 usage(); 99 100 return bind_tohost(&sin, domainname, argv[0]) != 0; 101 } 102 103 static void 104 gethostaddr(host, ia) 105 const char *host; 106 struct in_addr *ia; 107 { 108 struct hostent *hp; 109 110 if (inet_aton(host, ia) != 0) 111 return; 112 113 hp = gethostbyname(host); 114 if (hp == NULL) 115 errx(1, "Cannot get host address for %s: %s", host, 116 hstrerror(h_errno)); 117 (void) memcpy(ia, hp->h_addr, sizeof(*ia)); 118 } 119 120 static int 121 bind_tohost(sin, dom, server) 122 struct sockaddr_in *sin; 123 char *dom, *server; 124 { 125 struct ypbind_setdom ypsd; 126 struct timeval tv; 127 CLIENT *client; 128 int sock, port; 129 int r; 130 131 port = htons(getrpcport(server, YPPROG, YPPROC_NULL, IPPROTO_UDP)); 132 if (port == 0) 133 errx(1, "%s not running ypserv.", server); 134 135 (void) memset(&ypsd, 0, sizeof ypsd); 136 137 gethostaddr(server, &ypsd.ypsetdom_addr); 138 139 (void) strncpy(ypsd.ypsetdom_domain, dom, sizeof ypsd.ypsetdom_domain); 140 ypsd.ypsetdom_domain[sizeof(ypsd.ypsetdom_domain) - 1] = '\0'; 141 ypsd.ypsetdom_port = port; 142 ypsd.ypsetdom_vers = YPVERS; 143 144 tv.tv_sec = 15; 145 tv.tv_usec = 0; 146 sock = RPC_ANYSOCK; 147 148 client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock); 149 if (client == NULL) { 150 warnx("Can't yp_bind: Reason: %s", yperr_string(YPERR_YPBIND)); 151 return YPERR_YPBIND; 152 } 153 client->cl_auth = authunix_create_default(); 154 155 r = clnt_call(client, YPBINDPROC_SETDOM, 156 xdr_ypbind_setdom, &ypsd, xdr_void, NULL, tv); 157 if (r) { 158 warnx("Cannot ypset for domain %s on host %s: %s.\n", 159 dom, server, clnt_sperrno(r)); 160 clnt_destroy(client); 161 return YPERR_YPBIND; 162 } 163 clnt_destroy(client); 164 return 0; 165 } 166 167 static void 168 usage() 169 { 170 (void) fprintf(stderr, "usage: %s [-h host ] [-d domain] server\n", 171 getprogname()); 172 exit(1); 173 } 174