yppoll.c revision 1.7
1 /* $NetBSD: yppoll.c,v 1.7 2000/04/14 06:26:55 simonb 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 1.7 2000/04/14 06:26:55 simonb 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 <time.h> 48 #include <netdb.h> 49 #include <unistd.h> 50 #include <string.h> 51 #include <netinet/in.h> 52 #include <arpa/inet.h> 53 54 #include <rpc/rpc.h> 55 #include <rpc/xdr.h> 56 #include <rpcsvc/yp_prot.h> 57 #include <rpcsvc/ypclnt.h> 58 59 int main __P((int, char *[])); 60 int get_remote_info __P((char *, char *, char *, int *, char **)); 61 void usage __P((void)); 62 63 extern char *__progname; 64 65 int 66 main(argc, argv) 67 int argc; 68 char **argv; 69 { 70 char *domainname; 71 char *hostname = NULL; 72 char *inmap, *master; 73 int order; 74 int c, r; 75 76 yp_get_default_domain(&domainname); 77 78 while ((c = getopt(argc, argv, "h:d:")) != -1) { 79 switch (c) { 80 case 'd': 81 domainname = optarg; 82 break; 83 84 case 'h': 85 hostname = optarg; 86 break; 87 88 default: 89 usage(); 90 /*NOTREACHED*/ 91 } 92 } 93 94 if (domainname == NULL) 95 errx(1, "YP domain name not set"); 96 97 argc -= optind; 98 argv += optind; 99 100 if (argc != 1) 101 usage(); 102 103 inmap = argv[0]; 104 105 if (hostname != NULL) 106 r = get_remote_info(domainname, inmap, hostname, 107 &order, &master); 108 else { 109 r = yp_order(domainname, inmap, &order); 110 if (r == 0) 111 r = yp_master(domainname, inmap, &master); 112 } 113 114 if (r != 0) 115 errx(1, "no such map %s. Reason: %s\n", 116 inmap, yperr_string(r)); 117 118 printf("Map %s has order number %d. %s", inmap, order, 119 ctime((time_t *)&order)); 120 printf("The master server is %s.\n", master); 121 exit(0); 122 } 123 124 int 125 get_remote_info(indomain, inmap, server, outorder, outname) 126 char *indomain; 127 char *inmap; 128 char *server; 129 int *outorder; 130 char **outname; 131 { 132 struct ypresp_order ypro; 133 struct ypresp_master yprm; 134 struct ypreq_nokey yprnk; 135 struct timeval tv; 136 int r; 137 struct sockaddr_in rsrv_sin; 138 int rsrv_sock; 139 CLIENT *client; 140 struct hostent *h; 141 142 memset(&rsrv_sin, 0, sizeof(rsrv_sin)); 143 rsrv_sin.sin_len = sizeof rsrv_sin; 144 rsrv_sin.sin_family = AF_INET; 145 rsrv_sock = RPC_ANYSOCK; 146 147 h = gethostbyname(server); 148 if (h == NULL) { 149 if (inet_aton(server, &rsrv_sin.sin_addr) == 0) 150 errx(1, "unknown host %s", server); 151 } else 152 memcpy(&rsrv_sin.sin_addr.s_addr, h->h_addr, h->h_length); 153 154 tv.tv_sec = 10; 155 tv.tv_usec = 0; 156 157 client = clntudp_create(&rsrv_sin, YPPROG, YPVERS, tv, &rsrv_sock); 158 if (client == NULL) 159 errx(1, "clntudp_create: no contact with host %s.\n", server); 160 161 yprnk.domain = indomain; 162 yprnk.map = inmap; 163 164 memset(&ypro, 0, sizeof(ypro)); 165 166 r = clnt_call(client, YPPROC_ORDER, xdr_ypreq_nokey, &yprnk, 167 xdr_ypresp_order, &ypro, tv); 168 if (r != RPC_SUCCESS) 169 clnt_perror(client, "yp_order: clnt_call"); 170 171 *outorder = ypro.ordernum; 172 xdr_free(xdr_ypresp_order, (char *)&ypro); 173 174 r = ypprot_err(ypro.status); 175 if (r == RPC_SUCCESS) { 176 memset(&yprm, 0, sizeof(yprm)); 177 178 r = clnt_call(client, YPPROC_MASTER, xdr_ypreq_nokey, 179 &yprnk, xdr_ypresp_master, &yprm, tv); 180 if (r != RPC_SUCCESS) 181 clnt_perror(client, "yp_master: clnt_call"); 182 r = ypprot_err(yprm.status); 183 if (r == 0) 184 *outname = (char *)strdup(yprm.master); 185 xdr_free(xdr_ypresp_master, (char *)&yprm); 186 } 187 clnt_destroy(client); 188 return r; 189 } 190 191 void 192 usage() 193 { 194 195 fprintf(stderr, "usage: %s [-h host] [-d domainname] mapname\n", 196 __progname); 197 exit(1); 198 } 199
Indexes created Thu Oct 23 22:10:10 GMT 2025