yppoll.c revision 1.8
1 /* $NetBSD: yppoll.c,v 1.8 2000/07/04 20:27:41 matt Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 Theo de Raadt <deraadt (at) fsa.ca> 5 * Copyright (c) 1992, 1993 John Brezak 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Theo de Raadt and 19 * John Brezak. 20 * 4. The name of the author may not be used to endorse or promote 21 * products derived from this software without specific prior written 22 * permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 25 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 26 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 28 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #include <sys/cdefs.h> 38 #ifndef lint 39 __RCSID("$NetBSD: yppoll.c,v 1.8 2000/07/04 20:27:41 matt Exp $"); 40 #endif /* not lint */ 41 42 #include <sys/param.h> 43 #include <sys/types.h> 44 #include <sys/socket.h> 45 #include <err.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <time.h> 49 #include <netdb.h> 50 #include <unistd.h> 51 #include <string.h> 52 #include <netinet/in.h> 53 #include <arpa/inet.h> 54 55 #include <rpc/rpc.h> 56 #include <rpc/xdr.h> 57 #include <rpcsvc/yp_prot.h> 58 #include <rpcsvc/ypclnt.h> 59 60 int main __P((int, char *[])); 61 int get_remote_info __P((char *, char *, char *, int *, char **)); 62 void usage __P((void)); 63 64 extern char *__progname; 65 66 int 67 main(argc, argv) 68 int argc; 69 char **argv; 70 { 71 char *domainname; 72 char *hostname = NULL; 73 char *inmap, *master; 74 int order; 75 int c, r; 76 77 yp_get_default_domain(&domainname); 78 79 while ((c = getopt(argc, argv, "h:d:")) != -1) { 80 switch (c) { 81 case 'd': 82 domainname = optarg; 83 break; 84 85 case 'h': 86 hostname = optarg; 87 break; 88 89 default: 90 usage(); 91 /*NOTREACHED*/ 92 } 93 } 94 95 if (domainname == NULL) 96 errx(1, "YP domain name not set"); 97 98 argc -= optind; 99 argv += optind; 100 101 if (argc != 1) 102 usage(); 103 104 inmap = argv[0]; 105 106 if (hostname != NULL) 107 r = get_remote_info(domainname, inmap, hostname, 108 &order, &master); 109 else { 110 r = yp_order(domainname, inmap, &order); 111 if (r == 0) 112 r = yp_master(domainname, inmap, &master); 113 } 114 115 if (r != 0) 116 errx(1, "no such map %s. Reason: %s\n", 117 inmap, yperr_string(r)); 118 119 printf("Map %s has order number %d. %s", inmap, order, 120 ctime((time_t *)&order)); 121 printf("The master server is %s.\n", master); 122 exit(0); 123 } 124 125 int 126 get_remote_info(indomain, inmap, server, outorder, outname) 127 char *indomain; 128 char *inmap; 129 char *server; 130 int *outorder; 131 char **outname; 132 { 133 struct ypresp_order ypro; 134 struct ypresp_master yprm; 135 struct ypreq_nokey yprnk; 136 struct timeval tv; 137 int r; 138 struct sockaddr_in rsrv_sin; 139 int rsrv_sock; 140 CLIENT *client; 141 struct hostent *h; 142 143 memset(&rsrv_sin, 0, sizeof(rsrv_sin)); 144 rsrv_sin.sin_len = sizeof rsrv_sin; 145 rsrv_sin.sin_family = AF_INET; 146 rsrv_sock = RPC_ANYSOCK; 147 148 h = gethostbyname(server); 149 if (h == NULL) { 150 if (inet_aton(server, &rsrv_sin.sin_addr) == 0) 151 errx(1, "unknown host %s", server); 152 } else 153 memcpy(&rsrv_sin.sin_addr.s_addr, h->h_addr, h->h_length); 154 155 tv.tv_sec = 10; 156 tv.tv_usec = 0; 157 158 client = clntudp_create(&rsrv_sin, YPPROG, YPVERS, tv, &rsrv_sock); 159 if (client == NULL) 160 errx(1, "clntudp_create: no contact with host %s.\n", server); 161 162 yprnk.domain = indomain; 163 yprnk.map = inmap; 164 165 memset(&ypro, 0, sizeof(ypro)); 166 167 r = clnt_call(client, YPPROC_ORDER, xdr_ypreq_nokey, &yprnk, 168 xdr_ypresp_order, &ypro, tv); 169 if (r != RPC_SUCCESS) 170 clnt_perror(client, "yp_order: clnt_call"); 171 172 *outorder = ypro.ordernum; 173 xdr_free(xdr_ypresp_order, (char *)&ypro); 174 175 r = ypprot_err(ypro.status); 176 if (r == RPC_SUCCESS) { 177 memset(&yprm, 0, sizeof(yprm)); 178 179 r = clnt_call(client, YPPROC_MASTER, xdr_ypreq_nokey, 180 &yprnk, xdr_ypresp_master, &yprm, tv); 181 if (r != RPC_SUCCESS) 182 clnt_perror(client, "yp_master: clnt_call"); 183 r = ypprot_err(yprm.status); 184 if (r == 0) 185 *outname = (char *)strdup(yprm.master); 186 xdr_free(xdr_ypresp_master, (char *)&yprm); 187 } 188 clnt_destroy(client); 189 return r; 190 } 191 192 void 193 usage() 194 { 195 196 fprintf(stderr, "usage: %s [-h host] [-d domainname] mapname\n", 197 __progname); 198 exit(1); 199 } 200
Indexes created Tue Oct 21 08:09:48 GMT 2025