1 /* $NetBSD: clnt_bcast.c,v 1.3 2000/07/06 03:05:20 christos Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-3-Clause 5 * 6 * Copyright (c) 2009, Sun Microsystems, Inc. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions are met: 11 * - Redistributions of source code must retain the above copyright notice, 12 * this list of conditions and the following disclaimer. 13 * - Redistributions in binary form must reproduce the above copyright notice, 14 * this list of conditions and the following disclaimer in the documentation 15 * and/or other materials provided with the distribution. 16 * - Neither the name of Sun Microsystems, Inc. nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 /* 33 * Copyright (c) 1986-1991 by Sun Microsystems Inc. 34 */ 35 36 /* 37 * clnt_bcast.c 38 * Client interface to broadcast service. 39 * 40 * Copyright (C) 1988, Sun Microsystems, Inc. 41 * 42 * The following is kludged-up support for simple rpc broadcasts. 43 * Someday a large, complicated system will replace these routines. 44 */ 45 46 #include "namespace.h" 47 #include <sys/types.h> 48 #include <sys/socket.h> 49 #include <sys/queue.h> 50 #include <net/if.h> 51 #include <netinet/in.h> 52 #include <ifaddrs.h> 53 #include <sys/poll.h> 54 #include <rpc/rpc.h> 55 #ifdef PORTMAP 56 #include <rpc/pmap_prot.h> 57 #include <rpc/pmap_clnt.h> 58 #include <rpc/pmap_rmt.h> 59 #endif /* PORTMAP */ 60 #include <rpc/nettype.h> 61 #include <arpa/inet.h> 62 #ifdef RPC_DEBUG 63 #include <stdio.h> 64 #endif 65 #include <errno.h> 66 #include <stdlib.h> 67 #include <unistd.h> 68 #include <netdb.h> 69 #include <err.h> 70 #include <string.h> 71 #include "un-namespace.h" 72 73 #include "rpc_com.h" 74 75 #define MAXBCAST 20 /* Max no of broadcasting transports */ 76 #define INITTIME 4000 /* Time to wait initially */ 77 #define WAITTIME 8000 /* Maximum time to wait */ 78 79 /* 80 * If nettype is NULL, it broadcasts on all the available 81 * datagram_n transports. May potentially lead to broadacst storms 82 * and hence should be used with caution, care and courage. 83 * 84 * The current parameter xdr packet size is limited by the max tsdu 85 * size of the transport. If the max tsdu size of any transport is 86 * smaller than the parameter xdr packet, then broadcast is not 87 * sent on that transport. 88 * 89 * Also, the packet size should be less the packet size of 90 * the data link layer (for ethernet it is 1400 bytes). There is 91 * no easy way to find out the max size of the data link layer and 92 * we are assuming that the args would be smaller than that. 93 * 94 * The result size has to be smaller than the transport tsdu size. 95 * 96 * If PORTMAP has been defined, we send two packets for UDP, one for 97 * rpcbind and one for portmap. For those machines which support 98 * both rpcbind and portmap, it will cause them to reply twice, and 99 * also here it will get two responses ... inefficient and clumsy. 100 */ 101 102 struct broadif { 103 int index; 104 struct sockaddr_storage broadaddr; 105 TAILQ_ENTRY(broadif) link; 106 }; 107 108 typedef TAILQ_HEAD(, broadif) broadlist_t; 109 110 int __rpc_getbroadifs(int, int, int, broadlist_t *); 111 void __rpc_freebroadifs(broadlist_t *); 112 int __rpc_broadenable(int, int, struct broadif *); 113 114 int __rpc_lowvers = 0; 115 116 int 117 __rpc_getbroadifs(int af, int proto, int socktype, broadlist_t *list) 118 { 119 int count = 0; 120 struct broadif *bip; 121 struct ifaddrs *ifap, *ifp; 122 #ifdef INET6 123 struct sockaddr_in6 *sin6; 124 #endif 125 struct sockaddr_in *sin; 126 struct addrinfo hints, *res; 127 128 if (getifaddrs(&ifp) < 0) 129 return 0; 130 131 memset(&hints, 0, sizeof hints); 132 133 hints.ai_family = af; 134 hints.ai_protocol = proto; 135 hints.ai_socktype = socktype; 136 137 if (getaddrinfo(NULL, "sunrpc", &hints, &res) != 0) { 138 freeifaddrs(ifp); 139 return 0; 140 } 141 142 for (ifap = ifp; ifap != NULL; ifap = ifap->ifa_next) { 143 if (ifap->ifa_addr->sa_family != af || 144 !(ifap->ifa_flags & IFF_UP)) 145 continue; 146 bip = (struct broadif *)malloc(sizeof *bip); 147 if (bip == NULL) 148 break; 149 bip->index = if_nametoindex(ifap->ifa_name); 150 if ( 151 #ifdef INET6 152 af != AF_INET6 && 153 #endif 154 (ifap->ifa_flags & IFF_BROADCAST) && 155 ifap->ifa_broadaddr) { 156 memcpy(&bip->broadaddr, ifap->ifa_broadaddr, 157 (size_t)ifap->ifa_broadaddr->sa_len); 158 sin = (struct sockaddr_in *)(void *)&bip->broadaddr; 159 sin->sin_port = 160 ((struct sockaddr_in *) 161 (void *)res->ai_addr)->sin_port; 162 } else 163 #ifdef INET6 164 if (af == AF_INET6 && (ifap->ifa_flags & IFF_MULTICAST)) { 165 sin6 = (struct sockaddr_in6 *)(void *)&bip->broadaddr; 166 inet_pton(af, RPCB_MULTICAST_ADDR, &sin6->sin6_addr); 167 sin6->sin6_family = af; 168 sin6->sin6_len = sizeof *sin6; 169 sin6->sin6_port = 170 ((struct sockaddr_in6 *) 171 (void *)res->ai_addr)->sin6_port; 172 sin6->sin6_scope_id = bip->index; 173 } else 174 #endif 175 { 176 free(bip); 177 continue; 178 } 179 TAILQ_INSERT_TAIL(list, bip, link); 180 count++; 181 } 182 freeifaddrs(ifp); 183 freeaddrinfo(res); 184 185 return count; 186 } 187 188 void 189 __rpc_freebroadifs(broadlist_t *list) 190 { 191 struct broadif *bip, *next; 192 193 bip = TAILQ_FIRST(list); 194 195 while (bip != NULL) { 196 next = TAILQ_NEXT(bip, link); 197 free(bip); 198 bip = next; 199 } 200 } 201 202 int 203 /*ARGSUSED*/ 204 __rpc_broadenable(int af, int s, struct broadif *bip) 205 { 206 int o = 1; 207 208 #if 0 209 if (af == AF_INET6) { 210 fprintf(stderr, "set v6 multicast if to %d\n", bip->index); 211 if (_setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_IF, &bip->index, 212 sizeof bip->index) < 0) 213 return -1; 214 } else 215 #endif 216 if (_setsockopt(s, SOL_SOCKET, SO_BROADCAST, &o, sizeof o) < 0) 217 return -1; 218 219 return 0; 220 } 221 222 /* 223 * rpc_broadcast_exp() 224 * 225 * prog - program number 226 * vers - version number 227 * proc - procedure number 228 * xargs - xdr routine for args 229 * argsp - pointer to args 230 * xresults - xdr routine for results 231 * resultsp - pointer to results 232 * eachresult - call with each result obtained 233 * inittime - how long to wait initially 234 * waittime - maximum time to wait 235 * nettype - transport type 236 */ 237 enum clnt_stat 238 rpc_broadcast_exp(rpcprog_t prog, rpcvers_t vers, rpcproc_t proc, 239 xdrproc_t xargs, caddr_t argsp, xdrproc_t xresults, caddr_t resultsp, 240 resultproc_t eachresult, int inittime, int waittime, 241 const char *nettype) 242 { 243 enum clnt_stat stat = RPC_SUCCESS; /* Return status */ 244 XDR xdr_stream; /* XDR stream */ 245 XDR *xdrs = &xdr_stream; 246 struct rpc_msg msg; /* RPC message */ 247 struct timeval t; 248 char *outbuf = NULL; /* Broadcast msg buffer */ 249 char *inbuf = NULL; /* Reply buf */ 250 int inlen; 251 u_int maxbufsize = 0; 252 AUTH *sys_auth = authunix_create_default(); 253 u_int i; 254 void *handle; 255 char uaddress[1024]; /* A self imposed limit */ 256 char *uaddrp = uaddress; 257 int pmap_reply_flag; /* reply recvd from PORTMAP */ 258 /* An array of all the suitable broadcast transports */ 259 struct { 260 int fd; /* File descriptor */ 261 int af; 262 int proto; 263 struct netconfig *nconf; /* Netconfig structure */ 264 u_int asize; /* Size of the addr buf */ 265 u_int dsize; /* Size of the data buf */ 266 struct sockaddr_storage raddr; /* Remote address */ 267 broadlist_t nal; 268 } fdlist[MAXBCAST]; 269 struct pollfd pfd[MAXBCAST]; 270 size_t fdlistno = 0; 271 struct r_rpcb_rmtcallargs barg; /* Remote arguments */ 272 struct r_rpcb_rmtcallres bres; /* Remote results */ 273 size_t outlen; 274 struct netconfig *nconf; 275 int msec; 276 int pollretval; 277 int fds_found; 278 279 #ifdef PORTMAP 280 size_t outlen_pmap = 0; 281 u_long port; /* Remote port number */ 282 int pmap_flag = 0; /* UDP exists ? */ 283 char *outbuf_pmap = NULL; 284 struct rmtcallargs barg_pmap; /* Remote arguments */ 285 struct rmtcallres bres_pmap; /* Remote results */ 286 u_int udpbufsz = 0; 287 #endif /* PORTMAP */ 288 289 if (sys_auth == NULL) { 290 return (RPC_SYSTEMERROR); 291 } 292 /* 293 * initialization: create a fd, a broadcast address, and send the 294 * request on the broadcast transport. 295 * Listen on all of them and on replies, call the user supplied 296 * function. 297 */ 298 299 if (nettype == NULL) 300 nettype = "datagram_n"; 301 if ((handle = __rpc_setconf(nettype)) == NULL) { 302 AUTH_DESTROY(sys_auth); 303 return (RPC_UNKNOWNPROTO); 304 } 305 while ((nconf = __rpc_getconf(handle)) != NULL) { 306 int fd; 307 struct __rpc_sockinfo si; 308 309 if (nconf->nc_semantics != NC_TPI_CLTS) 310 continue; 311 if (fdlistno >= MAXBCAST) 312 break; /* No more slots available */ 313 if (!__rpc_nconf2sockinfo(nconf, &si)) 314 continue; 315 316 TAILQ_INIT(&fdlist[fdlistno].nal); 317 if (__rpc_getbroadifs(si.si_af, si.si_proto, si.si_socktype, 318 &fdlist[fdlistno].nal) == 0) 319 continue; 320 321 fd = _socket(si.si_af, si.si_socktype, si.si_proto); 322 if (fd < 0) { 323 stat = RPC_CANTSEND; 324 continue; 325 } 326 fdlist[fdlistno].af = si.si_af; 327 fdlist[fdlistno].proto = si.si_proto; 328 fdlist[fdlistno].fd = fd; 329 fdlist[fdlistno].nconf = nconf; 330 fdlist[fdlistno].asize = __rpc_get_a_size(si.si_af); 331 pfd[fdlistno].events = POLLIN | POLLPRI | 332 POLLRDNORM | POLLRDBAND; 333 pfd[fdlistno].fd = fdlist[fdlistno].fd = fd; 334 fdlist[fdlistno].dsize = __rpc_get_t_size(si.si_af, si.si_proto, 335 0); 336 337 if (maxbufsize <= fdlist[fdlistno].dsize) 338 maxbufsize = fdlist[fdlistno].dsize; 339 340 #ifdef PORTMAP 341 if (si.si_af == AF_INET && si.si_proto == IPPROTO_UDP) { 342 udpbufsz = fdlist[fdlistno].dsize; 343 outbuf_pmap = reallocf(outbuf_pmap, udpbufsz); 344 if (outbuf_pmap == NULL) { 345 _close(fd); 346 stat = RPC_SYSTEMERROR; 347 goto done_broad; 348 } 349 pmap_flag = 1; 350 } 351 #endif /* PORTMAP */ 352 fdlistno++; 353 } 354 355 if (fdlistno == 0) { 356 if (stat == RPC_SUCCESS) 357 stat = RPC_UNKNOWNPROTO; 358 goto done_broad; 359 } 360 if (maxbufsize == 0) { 361 if (stat == RPC_SUCCESS) 362 stat = RPC_CANTSEND; 363 goto done_broad; 364 } 365 inbuf = malloc(maxbufsize); 366 outbuf = malloc(maxbufsize); 367 if ((inbuf == NULL) || (outbuf == NULL)) { 368 stat = RPC_SYSTEMERROR; 369 goto done_broad; 370 } 371 372 /* Serialize all the arguments which have to be sent */ 373 (void) gettimeofday(&t, NULL); 374 msg.rm_xid = __RPC_GETXID(&t); 375 msg.rm_direction = CALL; 376 msg.rm_call.cb_rpcvers = RPC_MSG_VERSION; 377 msg.rm_call.cb_prog = RPCBPROG; 378 msg.rm_call.cb_vers = RPCBVERS; 379 msg.rm_call.cb_proc = RPCBPROC_CALLIT; 380 barg.prog = prog; 381 barg.vers = vers; 382 barg.proc = proc; 383 barg.args.args_val = argsp; 384 barg.xdr_args = xargs; 385 bres.addr = uaddrp; 386 bres.results.results_val = resultsp; 387 bres.xdr_res = xresults; 388 msg.rm_call.cb_cred = sys_auth->ah_cred; 389 msg.rm_call.cb_verf = sys_auth->ah_verf; 390 xdrmem_create(xdrs, outbuf, maxbufsize, XDR_ENCODE); 391 if ((!xdr_callmsg(xdrs, &msg)) || 392 (!xdr_rpcb_rmtcallargs(xdrs, 393 (struct rpcb_rmtcallargs *)(void *)&barg))) { 394 stat = RPC_CANTENCODEARGS; 395 goto done_broad; 396 } 397 outlen = xdr_getpos(xdrs); 398 xdr_destroy(xdrs); 399 400 #ifdef PORTMAP 401 /* Prepare the packet for version 2 PORTMAP */ 402 if (pmap_flag) { 403 msg.rm_xid++; /* One way to distinguish */ 404 msg.rm_call.cb_prog = PMAPPROG; 405 msg.rm_call.cb_vers = PMAPVERS; 406 msg.rm_call.cb_proc = PMAPPROC_CALLIT; 407 barg_pmap.prog = prog; 408 barg_pmap.vers = vers; 409 barg_pmap.proc = proc; 410 barg_pmap.args_ptr = argsp; 411 barg_pmap.xdr_args = xargs; 412 bres_pmap.port_ptr = &port; 413 bres_pmap.xdr_results = xresults; 414 bres_pmap.results_ptr = resultsp; 415 xdrmem_create(xdrs, outbuf_pmap, udpbufsz, XDR_ENCODE); 416 if ((! xdr_callmsg(xdrs, &msg)) || 417 (! xdr_rmtcall_args(xdrs, &barg_pmap))) { 418 stat = RPC_CANTENCODEARGS; 419 goto done_broad; 420 } 421 outlen_pmap = xdr_getpos(xdrs); 422 xdr_destroy(xdrs); 423 } 424 #endif /* PORTMAP */ 425 426 /* 427 * Basic loop: broadcast the packets to transports which 428 * support data packets of size such that one can encode 429 * all the arguments. 430 * Wait a while for response(s). 431 * The response timeout grows larger per iteration. 432 */ 433 for (msec = inittime; msec <= waittime; msec += msec) { 434 struct broadif *bip; 435 436 /* Broadcast all the packets now */ 437 for (i = 0; i < fdlistno; i++) { 438 if (fdlist[i].dsize < outlen) { 439 stat = RPC_CANTSEND; 440 continue; 441 } 442 for (bip = TAILQ_FIRST(&fdlist[i].nal); bip != NULL; 443 bip = TAILQ_NEXT(bip, link)) { 444 void *addr; 445 446 addr = &bip->broadaddr; 447 448 __rpc_broadenable(fdlist[i].af, fdlist[i].fd, 449 bip); 450 451 /* 452 * Only use version 3 if lowvers is not set 453 */ 454 455 if (!__rpc_lowvers) 456 if (_sendto(fdlist[i].fd, outbuf, 457 outlen, 0, (struct sockaddr*)addr, 458 (size_t)fdlist[i].asize) != 459 outlen) { 460 #ifdef RPC_DEBUG 461 perror("sendto"); 462 #endif 463 warnx("clnt_bcast: cannot send " 464 "broadcast packet"); 465 stat = RPC_CANTSEND; 466 continue; 467 } 468 #ifdef RPC_DEBUG 469 if (!__rpc_lowvers) 470 fprintf(stderr, "Broadcast packet sent " 471 "for %s\n", 472 fdlist[i].nconf->nc_netid); 473 #endif 474 #ifdef PORTMAP 475 /* 476 * Send the version 2 packet also 477 * for UDP/IP 478 */ 479 if (pmap_flag && 480 fdlist[i].proto == IPPROTO_UDP) { 481 if (_sendto(fdlist[i].fd, outbuf_pmap, 482 outlen_pmap, 0, addr, 483 (size_t)fdlist[i].asize) != 484 outlen_pmap) { 485 warnx("clnt_bcast: " 486 "Cannot send broadcast packet"); 487 stat = RPC_CANTSEND; 488 continue; 489 } 490 } 491 #ifdef RPC_DEBUG 492 fprintf(stderr, "PMAP Broadcast packet " 493 "sent for %s\n", 494 fdlist[i].nconf->nc_netid); 495 #endif 496 #endif /* PORTMAP */ 497 } 498 /* End for sending all packets on this transport */ 499 } /* End for sending on all transports */ 500 501 if (eachresult == NULL) { 502 stat = RPC_SUCCESS; 503 goto done_broad; 504 } 505 506 /* 507 * Get all the replies from these broadcast requests 508 */ 509 recv_again: 510 511 switch (pollretval = _poll(pfd, fdlistno, msec)) { 512 case 0: /* timed out */ 513 stat = RPC_TIMEDOUT; 514 continue; 515 case -1: /* some kind of error - we ignore it */ 516 goto recv_again; 517 } /* end of poll results switch */ 518 519 for (i = fds_found = 0; 520 i < fdlistno && fds_found < pollretval; i++) { 521 bool_t done = FALSE; 522 523 if (pfd[i].revents == 0) 524 continue; 525 else if (pfd[i].revents & POLLNVAL) { 526 /* 527 * Something bad has happened to this descri- 528 * ptor. We can cause _poll() to ignore 529 * it simply by using a negative fd. We do that 530 * rather than compacting the pfd[] and fdlist[] 531 * arrays. 532 */ 533 pfd[i].fd = -1; 534 fds_found++; 535 continue; 536 } else 537 fds_found++; 538 #ifdef RPC_DEBUG 539 fprintf(stderr, "response for %s\n", 540 fdlist[i].nconf->nc_netid); 541 #endif 542 try_again: 543 inlen = _recvfrom(fdlist[i].fd, inbuf, fdlist[i].dsize, 544 0, (struct sockaddr *)(void *)&fdlist[i].raddr, 545 &fdlist[i].asize); 546 if (inlen < 0) { 547 if (errno == EINTR) 548 goto try_again; 549 warnx("clnt_bcast: Cannot receive reply to " 550 "broadcast"); 551 stat = RPC_CANTRECV; 552 continue; 553 } 554 if (inlen < sizeof (u_int32_t)) 555 continue; /* Drop that and go ahead */ 556 /* 557 * see if reply transaction id matches sent id. 558 * If so, decode the results. If return id is xid + 1 559 * it was a PORTMAP reply 560 */ 561 if (*((u_int32_t *)(void *)(inbuf)) == 562 *((u_int32_t *)(void *)(outbuf))) { 563 pmap_reply_flag = 0; 564 msg.acpted_rply.ar_verf = _null_auth; 565 msg.acpted_rply.ar_results.where = 566 (caddr_t)(void *)&bres; 567 msg.acpted_rply.ar_results.proc = 568 (xdrproc_t)xdr_rpcb_rmtcallres; 569 #ifdef PORTMAP 570 } else if (pmap_flag && 571 *((u_int32_t *)(void *)(inbuf)) == 572 *((u_int32_t *)(void *)(outbuf_pmap))) { 573 pmap_reply_flag = 1; 574 msg.acpted_rply.ar_verf = _null_auth; 575 msg.acpted_rply.ar_results.where = 576 (caddr_t)(void *)&bres_pmap; 577 msg.acpted_rply.ar_results.proc = 578 (xdrproc_t)xdr_rmtcallres; 579 #endif /* PORTMAP */ 580 } else 581 continue; 582 xdrmem_create(xdrs, inbuf, (u_int)inlen, XDR_DECODE); 583 if (xdr_replymsg(xdrs, &msg)) { 584 if ((msg.rm_reply.rp_stat == MSG_ACCEPTED) && 585 (msg.acpted_rply.ar_stat == SUCCESS)) { 586 struct netbuf taddr, *np; 587 struct sockaddr_in *sin; 588 589 #ifdef PORTMAP 590 if (pmap_flag && pmap_reply_flag) { 591 sin = (struct sockaddr_in *) 592 (void *)&fdlist[i].raddr; 593 sin->sin_port = 594 htons((u_short)port); 595 taddr.len = taddr.maxlen = 596 fdlist[i].raddr.ss_len; 597 taddr.buf = &fdlist[i].raddr; 598 done = (*eachresult)(resultsp, 599 &taddr, fdlist[i].nconf); 600 } else { 601 #endif /* PORTMAP */ 602 #ifdef RPC_DEBUG 603 fprintf(stderr, "uaddr %s\n", 604 uaddrp); 605 #endif 606 np = uaddr2taddr( 607 fdlist[i].nconf, uaddrp); 608 done = (*eachresult)(resultsp, 609 np, fdlist[i].nconf); 610 free(np); 611 #ifdef PORTMAP 612 } 613 #endif /* PORTMAP */ 614 } 615 /* otherwise, we just ignore the errors ... */ 616 } 617 /* else some kind of deserialization problem ... */ 618 619 xdrs->x_op = XDR_FREE; 620 msg.acpted_rply.ar_results.proc = (xdrproc_t) xdr_void; 621 (void) xdr_replymsg(xdrs, &msg); 622 (void) (*xresults)(xdrs, resultsp); 623 XDR_DESTROY(xdrs); 624 if (done) { 625 stat = RPC_SUCCESS; 626 goto done_broad; 627 } else { 628 goto recv_again; 629 } 630 } /* The recv for loop */ 631 } /* The giant for loop */ 632 633 done_broad: 634 free(inbuf); 635 free(outbuf); 636 #ifdef PORTMAP 637 free(outbuf_pmap); 638 #endif /* PORTMAP */ 639 for (i = 0; i < fdlistno; i++) { 640 (void)_close(fdlist[i].fd); 641 __rpc_freebroadifs(&fdlist[i].nal); 642 } 643 AUTH_DESTROY(sys_auth); 644 (void) __rpc_endconf(handle); 645 646 return (stat); 647 } 648 649 /* 650 * rpc_broadcast() 651 * 652 * prog - program number 653 * vers - version number 654 * proc - procedure number 655 * xargs - xdr routine for args 656 * argsp - pointer to args 657 * xresults - xdr routine for results 658 * resultsp - pointer to results 659 * eachresult - call with each result obtained 660 * nettype - transport type 661 */ 662 enum clnt_stat 663 rpc_broadcast(rpcprog_t prog, rpcvers_t vers, rpcproc_t proc, xdrproc_t xargs, 664 caddr_t argsp, xdrproc_t xresults, caddr_t resultsp, 665 resultproc_t eachresult, const char *nettype) 666 { 667 enum clnt_stat dummy; 668 669 dummy = rpc_broadcast_exp(prog, vers, proc, xargs, argsp, 670 xresults, resultsp, eachresult, 671 INITTIME, WAITTIME, nettype); 672 return (dummy); 673 } 674