yppoll.c revision 1.13
1 /* $NetBSD: yppoll.c,v 1.13 2003/12/10 17:10:34 jdolecek Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 Theo de Raadt <deraadt (at) 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 17 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 /* 30 * Copyright (c) 1992, 1993 John Brezak 31 * All rights reserved. 32 * 33 * Redistribution and use in source and binary forms, with or without 34 * modification, are permitted provided that the following conditions 35 * are met: 36 * 1. Redistributions of source code must retain the above copyright 37 * notice, this list of conditions and the following disclaimer. 38 * 2. Redistributions in binary form must reproduce the above copyright 39 * notice, this list of conditions and the following disclaimer in the 40 * documentation and/or other materials provided with the distribution. 41 * 3. The name of the author may not be used to endorse or promote 42 * products derived from this software without specific prior written 43 * permission. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 46 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 47 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 48 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 49 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 55 * SUCH DAMAGE. 56 */ 57 58 #include <sys/cdefs.h> 59 #ifndef lint 60 __RCSID("$NetBSD: yppoll.c,v 1.13 2003/12/10 17:10:34 jdolecek Exp $"); 61 #endif /* not lint */ 62 63 #include <sys/param.h> 64 #include <sys/types.h> 65 #include <sys/socket.h> 66 #include <err.h> 67 #include <stdio.h> 68 #include <stdlib.h> 69 #include <time.h> 70 #include <netdb.h> 71 #include <unistd.h> 72 #include <string.h> 73 #include <netinet/in.h> 74 #include <arpa/inet.h> 75 76 #include <rpc/rpc.h> 77 #include <rpc/xdr.h> 78 #include <rpcsvc/yp_prot.h> 79 #include <rpcsvc/ypclnt.h> 80 81 int main __P((int, char *[])); 82 int get_remote_info __P((char *, char *, char *, int *, char **)); 83 void usage __P((void)); 84 85 int 86 main(argc, argv) 87 int argc; 88 char **argv; 89 { 90 char *domainname; 91 char *hostname = NULL; 92 char *inmap, *master; 93 int order; 94 int c, r; 95 96 yp_get_default_domain(&domainname); 97 98 while ((c = getopt(argc, argv, "h:d:")) != -1) { 99 switch (c) { 100 case 'd': 101 domainname = optarg; 102 break; 103 104 case 'h': 105 hostname = optarg; 106 break; 107 108 default: 109 usage(); 110 /*NOTREACHED*/ 111 } 112 } 113 114 if (domainname == NULL) 115 errx(1, "YP domain name not set"); 116 117 argc -= optind; 118 argv += optind; 119 120 if (argc != 1) 121 usage(); 122 123 inmap = argv[0]; 124 125 if (hostname != NULL) 126 r = get_remote_info(domainname, inmap, hostname, 127 &order, &master); 128 else { 129 r = yp_order(domainname, inmap, &order); 130 if (r == 0) 131 r = yp_master(domainname, inmap, &master); 132 } 133 134 if (r != 0) 135 errx(1, "no such map %s. Reason: %s", 136 inmap, yperr_string(r)); 137 138 printf("Map %s has order number %d. %s", inmap, order, 139 ctime((void *)&order)); 140 printf("The master server is %s.\n", master); 141 exit(0); 142 } 143 144 int 145 get_remote_info(indomain, inmap, server, outorder, outname) 146 char *indomain; 147 char *inmap; 148 char *server; 149 int *outorder; 150 char **outname; 151 { 152 struct ypresp_order ypro; 153 struct ypresp_master yprm; 154 struct ypreq_nokey yprnk; 155 struct timeval tv; 156 int r; 157 struct sockaddr_in rsrv_sin; 158 int rsrv_sock; 159 CLIENT *client; 160 struct hostent *h; 161 162 memset(&rsrv_sin, 0, sizeof(rsrv_sin)); 163 rsrv_sin.sin_len = sizeof rsrv_sin; 164 rsrv_sin.sin_family = AF_INET; 165 rsrv_sock = RPC_ANYSOCK; 166 167 h = gethostbyname(server); 168 if (h == NULL) { 169 if (inet_aton(server, &rsrv_sin.sin_addr) == 0) 170 errx(1, "unknown host %s", server); 171 } else 172 memcpy(&rsrv_sin.sin_addr.s_addr, h->h_addr, h->h_length); 173 174 tv.tv_sec = 10; 175 tv.tv_usec = 0; 176 177 client = clntudp_create(&rsrv_sin, YPPROG, YPVERS, tv, &rsrv_sock); 178 if (client == NULL) 179 errx(1, "clntudp_create: no contact with host %s.", server); 180 181 yprnk.domain = indomain; 182 yprnk.map = inmap; 183 184 memset(&ypro, 0, sizeof(ypro)); 185 186 r = clnt_call(client, YPPROC_ORDER, xdr_ypreq_nokey, &yprnk, 187 xdr_ypresp_order, &ypro, tv); 188 if (r != RPC_SUCCESS) 189 clnt_perror(client, "yp_order: clnt_call"); 190 191 *outorder = ypro.ordernum; 192 xdr_free(xdr_ypresp_order, (char *)&ypro); 193 194 r = ypprot_err(ypro.status); 195 if (r == RPC_SUCCESS) { 196 memset(&yprm, 0, sizeof(yprm)); 197 198 r = clnt_call(client, YPPROC_MASTER, xdr_ypreq_nokey, 199 &yprnk, xdr_ypresp_master, &yprm, tv); 200 if (r != RPC_SUCCESS) 201 clnt_perror(client, "yp_master: clnt_call"); 202 r = ypprot_err(yprm.status); 203 if (r == 0) 204 *outname = (char *)strdup(yprm.master); 205 xdr_free(xdr_ypresp_master, (char *)&yprm); 206 } 207 clnt_destroy(client); 208 return r; 209 } 210 211 void 212 usage() 213 { 214 215 fprintf(stderr, "usage: %s [-h host] [-d domainname] mapname\n", 216 getprogname()); 217 exit(1); 218 } 219
Indexes created Thu Oct 23 22:10:10 GMT 2025