1 /* $NetBSD: yplib_host.c,v 1.9 2011/08/30 17:06:22 plunky Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 Theo de Raadt <deraadt (at) theos.com> 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 #include <sys/cdefs.h> 30 #ifndef lint 31 __RCSID("$NetBSD: yplib_host.c,v 1.9 2011/08/30 17:06:22 plunky Exp $"); 32 #endif 33 34 #include <sys/param.h> 35 #include <sys/types.h> 36 #include <sys/socket.h> 37 #include <sys/file.h> 38 #include <sys/uio.h> 39 40 #include <netinet/in.h> 41 #include <arpa/inet.h> 42 43 #include <ctype.h> 44 #include <err.h> 45 #include <errno.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <netdb.h> 50 #include <unistd.h> 51 52 #include <rpc/rpc.h> 53 #include <rpc/xdr.h> 54 #include <rpcsvc/yp_prot.h> 55 #include <rpcsvc/ypclnt.h> 56 57 #include "yplib_host.h" 58 59 struct timeval _yplib_host_timeout = { 10, 0 }; 60 61 CLIENT * 62 yp_bind_host(char *server, u_int program, u_int version, u_short port, 63 int usetcp) 64 { 65 struct sockaddr_in rsrv_sin; 66 int rsrv_sock; 67 struct hostent *h; 68 static CLIENT *client; 69 70 memset(&rsrv_sin, 0, sizeof rsrv_sin); 71 rsrv_sin.sin_len = sizeof rsrv_sin; 72 rsrv_sin.sin_family = AF_INET; 73 rsrv_sock = RPC_ANYSOCK; 74 if (port != 0) { 75 rsrv_sin.sin_port = htons(port); 76 } 77 78 if (isdigit((unsigned char)*server)) { 79 if (inet_aton(server,&rsrv_sin.sin_addr) == 0) { 80 errx(1, "invalid IP address `%s'", server); 81 } 82 } else { 83 h = gethostbyname(server); 84 if(h == NULL) { 85 errx(1, "unknown host `%s'", server); 86 } 87 memcpy(&rsrv_sin.sin_addr.s_addr, h->h_addr_list[0], 88 h->h_length); 89 } 90 91 if (usetcp) 92 client = clnttcp_create(&rsrv_sin, program, version, 93 &rsrv_sock, 0, 0); 94 else 95 client = clntudp_create(&rsrv_sin, program, version, 96 _yplib_host_timeout, &rsrv_sock); 97 98 if (client == NULL) 99 errx(1, "%s: no contact with host `%s'", 100 usetcp ? "clnttcp_create" : "clntudp_create", server); 101 102 return(client); 103 } 104 105 CLIENT * 106 yp_bind_local(u_int program, u_int version) 107 { 108 struct sockaddr_in rsrv_sin; 109 int rsrv_sock; 110 static CLIENT *client; 111 112 memset(&rsrv_sin, 0, sizeof rsrv_sin); 113 rsrv_sin.sin_len = sizeof rsrv_sin; 114 rsrv_sin.sin_family = AF_INET; 115 rsrv_sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK); 116 rsrv_sock = RPC_ANYSOCK; 117 118 client = clntudp_create(&rsrv_sin, program, version, 119 _yplib_host_timeout, &rsrv_sock); 120 if (client == NULL) 121 errx(1, "clntudp_create: no contact with localhost"); 122 123 return(client); 124 } 125 126 int 127 yp_match_host(CLIENT *client, char *indomain, char *inmap, const char *inkey, 128 int inkeylen, char **outval, int *outvallen) 129 { 130 struct ypresp_val yprv; 131 struct ypreq_key yprk; 132 int r; 133 134 *outval = NULL; 135 *outvallen = 0; 136 137 yprk.domain = indomain; 138 yprk.map = inmap; 139 yprk.keydat.dptr = __UNCONST(inkey); 140 yprk.keydat.dsize = inkeylen; 141 142 memset(&yprv, 0, sizeof yprv); 143 144 r = clnt_call(client, YPPROC_MATCH, xdr_ypreq_key, &yprk, 145 xdr_ypresp_val, &yprv, _yplib_host_timeout); 146 if(r != RPC_SUCCESS) 147 clnt_perror(client, "yp_match_host: clnt_call"); 148 149 if(!(r=ypprot_err(yprv.status)) ) { 150 *outvallen = yprv.valdat.dsize; 151 *outval = (char *)malloc(*outvallen+1); 152 memcpy(*outval, yprv.valdat.dptr, *outvallen); 153 (*outval)[*outvallen] = '\0'; 154 } 155 xdr_free((xdrproc_t)xdr_ypresp_val, (char *)&yprv); 156 return r; 157 } 158 159 int 160 yp_first_host(CLIENT *client, char *indomain, char *inmap, char **outkey, 161 int *outkeylen, char **outval, int *outvallen) 162 { 163 struct ypresp_key_val yprkv; 164 struct ypreq_nokey yprnk; 165 int r; 166 167 *outkey = *outval = NULL; 168 *outkeylen = *outvallen = 0; 169 170 yprnk.domain = indomain; 171 yprnk.map = inmap; 172 memset(&yprkv, 0, sizeof yprkv); 173 174 r = clnt_call(client, YPPROC_FIRST, xdr_ypreq_nokey, &yprnk, 175 xdr_ypresp_key_val, &yprkv, _yplib_host_timeout); 176 if (r != RPC_SUCCESS) 177 clnt_perror(client, "yp_first_host: clnt_call"); 178 179 if(!(r=ypprot_err(yprkv.status)) ) { 180 *outkeylen = yprkv.keydat.dsize; 181 *outkey = (char *)malloc(*outkeylen+1); 182 memcpy(*outkey, yprkv.keydat.dptr, *outkeylen); 183 (*outkey)[*outkeylen] = '\0'; 184 *outvallen = yprkv.valdat.dsize; 185 *outval = (char *)malloc(*outvallen+1); 186 memcpy(*outval, yprkv.valdat.dptr, *outvallen); 187 (*outval)[*outvallen] = '\0'; 188 } 189 xdr_free((xdrproc_t)xdr_ypresp_key_val, (char *)&yprkv); 190 return r; 191 } 192 193 int 194 yp_next_host(CLIENT *client, char *indomain, char *inmap, char *inkey, 195 int inkeylen, char **outkey, int *outkeylen, char **outval, 196 int *outvallen) 197 { 198 struct ypresp_key_val yprkv; 199 struct ypreq_key yprk; 200 int r; 201 202 *outkey = *outval = NULL; 203 *outkeylen = *outvallen = 0; 204 205 yprk.domain = indomain; 206 yprk.map = inmap; 207 yprk.keydat.dptr = inkey; 208 yprk.keydat.dsize = inkeylen; 209 memset(&yprkv, 0, sizeof yprkv); 210 211 r = clnt_call(client, YPPROC_NEXT, xdr_ypreq_key, &yprk, 212 xdr_ypresp_key_val, &yprkv, _yplib_host_timeout); 213 if (r != RPC_SUCCESS) 214 clnt_perror(client, "yp_next_host: clnt_call"); 215 216 if(!(r=ypprot_err(yprkv.status)) ) { 217 *outkeylen = yprkv.keydat.dsize; 218 *outkey = (char *)malloc(*outkeylen+1); 219 memcpy(*outkey, yprkv.keydat.dptr, *outkeylen); 220 (*outkey)[*outkeylen] = '\0'; 221 *outvallen = yprkv.valdat.dsize; 222 *outval = (char *)malloc(*outvallen+1); 223 memcpy(*outval, yprkv.valdat.dptr, *outvallen); 224 (*outval)[*outvallen] = '\0'; 225 } 226 xdr_free((xdrproc_t)xdr_ypresp_key_val, (char *)&yprkv); 227 return r; 228 } 229 230 int 231 yp_all_host(CLIENT *client, const char *indomain, const char *inmap, 232 struct ypall_callback *incallback) 233 { 234 struct ypreq_nokey yprnk; 235 int status; 236 237 yprnk.domain = indomain; 238 yprnk.map = inmap; 239 240 status = clnt_call(client, YPPROC_ALL, xdr_ypreq_nokey, &yprnk, 241 xdr_ypall, (char *)incallback, _yplib_host_timeout); 242 243 if (status != RPC_SUCCESS) 244 return YPERR_RPC; 245 246 return 0; 247 } 248 249 int 250 yp_order_host(CLIENT *client, char *indomain, char *inmap, int *outorder) 251 { 252 struct ypresp_order ypro; 253 struct ypreq_nokey yprnk; 254 int r; 255 256 yprnk.domain = indomain; 257 yprnk.map = inmap; 258 259 memset(&ypro, 0, sizeof ypro); 260 261 r = clnt_call(client, YPPROC_ORDER, xdr_ypreq_nokey, &yprnk, 262 xdr_ypresp_order, &ypro, _yplib_host_timeout); 263 if (r != RPC_SUCCESS) 264 clnt_perror(client, "yp_order_host: clnt_call"); 265 266 *outorder = ypro.ordernum; 267 xdr_free((xdrproc_t)xdr_ypresp_order, (char *)&ypro); 268 return ypprot_err(ypro.status); 269 } 270 271 int 272 yp_master_host(CLIENT *client, char *indomain, char *inmap, char **outname) 273 { 274 struct ypresp_master yprm; 275 struct ypreq_nokey yprnk; 276 int r; 277 278 yprnk.domain = indomain; 279 yprnk.map = inmap; 280 281 memset(&yprm, 0, sizeof yprm); 282 283 r = clnt_call(client, YPPROC_MASTER, xdr_ypreq_nokey, &yprnk, 284 xdr_ypresp_master, &yprm, _yplib_host_timeout); 285 if (r != RPC_SUCCESS) 286 clnt_perror(client, "yp_master: clnt_call"); 287 288 if (!(r = ypprot_err(yprm.status))) { 289 *outname = (char *)strdup(yprm.master); 290 } 291 xdr_free((xdrproc_t)xdr_ypresp_master, (char *)&yprm); 292 return r; 293 } 294 295 int 296 yp_maplist_host(CLIENT *client, char *indomain, struct ypmaplist **outmaplist) 297 { 298 struct ypresp_maplist ypml; 299 int r; 300 301 memset(&ypml, 0, sizeof ypml); 302 303 r = clnt_call(client, YPPROC_MAPLIST, xdr_ypdomain_wrap_string, 304 indomain, xdr_ypresp_maplist, &ypml, _yplib_host_timeout); 305 if (r != RPC_SUCCESS) 306 clnt_perror(client, "yp_maplist: clnt_call"); 307 308 *outmaplist = ypml.list; 309 /* NO: xdr_free(xdr_ypresp_maplist, &ypml);*/ 310 return ypprot_err(ypml.status); 311 } 312
Indexes created Sun Sep 21 18:09:52 GMT 2025