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 #if defined(LIBC_SCCS) && !defined(lint) 37 #ident "@(#)clnt_bcast.c 1.18 94/05/03 SMI" 38 static char sccsid[] = "@(#)clnt_bcast.c 1.15 89/04/21 Copyr 1988 Sun Micro"; 39 #endif 40 #include <sys/cdefs.h> 41 /* 42 * clnt_bcast.c 43 * Client interface to broadcast service. 44 * 45 * Copyright (C) 1988, Sun Microsystems, Inc. 46 * 47 * The following is kludged-up support for simple rpc broadcasts. 48 * Someday a large, complicated system will replace these routines. 49 */ 50 51 #include "namespace.h" 52 #include <sys/types.h> 53 #include <sys/socket.h> 54 #include <sys/queue.h> 55 #include <net/if.h> 56 #include <netinet/in.h> 57 #include <ifaddrs.h> 58 #include <sys/poll.h> 59 #include <rpc/rpc.h> 60 #ifdef PORTMAP 61 #include <rpc/pmap_prot.h> 62 #include <rpc/pmap_clnt.h> 63 #include <rpc/pmap_rmt.h> 64 #endif /* PORTMAP */ 65 #include <rpc/nettype.h> 66 #include <arpa/inet.h> 67 #ifdef RPC_DEBUG 68 #include <stdio.h> 69 #endif 70 #include <errno.h> 71 #include <stdlib.h> 72 #include <unistd.h> 73 #include <netdb.h> 74 #include <err.h> 75 #include <string.h> 76 #include "un-namespace.h" 77 78 #include "rpc_com.h" 79 80 #define MAXBCAST 20 /* Max no of broadcasting transports */ 81 #define INITTIME 4000 /* Time to wait initially */ 82 #define WAITTIME 8000 /* Maximum time to wait */ 83 84 /* 85 * If nettype is NULL, it broadcasts on all the available 86 * datagram_n transports. May potentially lead to broadacst storms 87 * and hence should be used with caution, care and courage. 88 * 89 * The current parameter xdr packet size is limited by the max tsdu 90 * size of the transport. If the max tsdu size of any transport is 91 * smaller than the parameter xdr packet, then broadcast is not 92 * sent on that transport. 93 * 94 * Also, the packet size should be less the packet size of 95 * the data link layer (for ethernet it is 1400 bytes). There is 96 * no easy way to find out the max size of the data link layer and 97 * we are assuming that the args would be smaller than that. 98 * 99 * The result size has to be smaller than the transport tsdu size. 100 * 101 * If PORTMAP has been defined, we send two packets for UDP, one for 102 * rpcbind and one for portmap. For those machines which support 103 * both rpcbind and portmap, it will cause them to reply twice, and 104 * also here it will get two responses ... inefficient and clumsy. 105 */ 106 107 struct broadif { 108 int index; 109 struct sockaddr_storage broadaddr; 110 TAILQ_ENTRY(broadif) link; 111 }; 112 113 typedef TAILQ_HEAD(, broadif) broadlist_t; 114 115 int __rpc_getbroadifs(int, int, int, broadlist_t *); 116 void __rpc_freebroadifs(broadlist_t *); 117 int __rpc_broadenable(int, int, struct broadif *); 118 119 int __rpc_lowvers = 0; 120 121 int 122 __rpc_getbroadifs(int af, int proto, int socktype, broadlist_t *list) 123 { 124 int count = 0; 125 struct broadif *bip; 126 struct ifaddrs *ifap, *ifp; 127 #ifdef INET6 128 struct sockaddr_in6 *sin6; 129 #endif 130 struct sockaddr_in *sin; 131 struct addrinfo hints, *res; 132 133 if (getifaddrs(&ifp) < 0) 134 return 0; 135 136 memset(&hints, 0, sizeof hints); 137 138 hints.ai_family = af; 139 hints.ai_protocol = proto; 140 hints.ai_socktype = socktype; 141 142 if (getaddrinfo(NULL, "sunrpc", &hints, &res) != 0) { 143 freeifaddrs(ifp); 144 return 0; 145 } 146 147 for (ifap = ifp; ifap != NULL; ifap = ifap->ifa_next) { 148 if (ifap->ifa_addr->sa_family != af || 149 !(ifap->ifa_flags & IFF_UP)) 150 continue; 151 bip = (struct broadif *)malloc(sizeof *bip); 152 if (bip == NULL) 153 break; 154 bip->index = if_nametoindex(ifap->ifa_name); 155 if ( 156 #ifdef INET6 157 af != AF_INET6 && 158 #endif 159 (ifap->ifa_flags & IFF_BROADCAST) && 160 ifap->ifa_broadaddr) { 161 memcpy(&bip->broadaddr, ifap->ifa_broadaddr, 162 (size_t)ifap->ifa_broadaddr->sa_len); 163 sin = (struct sockaddr_in *)(void *)&bip->broadaddr; 164 sin->sin_port = 165 ((struct sockaddr_in *) 166 (void *)res->ai_addr)->sin_port; 167 } else 168 #ifdef INET6 169 if (af == AF_INET6 && (ifap->ifa_flags & IFF_MULTICAST)) { 170 sin6 = (struct sockaddr_in6 *)(void *)&bip->broadaddr; 171 inet_pton(af, RPCB_MULTICAST_ADDR, &sin6->sin6_addr); 172 sin6->sin6_family = af; 173 sin6->sin6_len = sizeof *sin6; 174 sin6->sin6_port = 175 ((struct sockaddr_in6 *) 176 (void *)res->ai_addr)->sin6_port; 177 sin6->sin6_scope_id = bip->index; 178 } else 179 #endif 180 { 181 free(bip); 182 continue; 183 } 184 TAILQ_INSERT_TAIL(list, bip, link); 185 count++; 186 } 187 freeifaddrs(ifp); 188 freeaddrinfo(res); 189 190 return count; 191 } 192 193 void 194 __rpc_freebroadifs(broadlist_t *list) 195 { 196 struct broadif *bip, *next; 197 198 bip = TAILQ_FIRST(list); 199 200 while (bip != NULL) { 201 next = TAILQ_NEXT(bip, link); 202 free(bip); 203 bip = next; 204 } 205 } 206 207 int 208 /*ARGSUSED*/ 209 __rpc_broadenable(int af, int s, struct broadif *bip) 210 { 211 int o = 1; 212 213 #if 0 214 if (af == AF_INET6) { 215 fprintf(stderr, "set v6 multicast if to %d\n", bip->index); 216 if (_setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_IF, &bip->index, 217 sizeof bip->index) < 0) 218 return -1; 219 } else 220 #endif 221 if (_setsockopt(s, SOL_SOCKET, SO_BROADCAST, &o, sizeof o) < 0) 222 return -1; 223 224 return 0; 225 } 226 227 /* 228 * rpc_broadcast_exp() 229 * 230 * prog - program number 231 * vers - version number 232 * proc - procedure number 233 * xargs - xdr routine for args 234 * argsp - pointer to args 235 * xresults - xdr routine for results 236 * resultsp - pointer to results 237 * eachresult - call with each result obtained 238 * inittime - how long to wait initially 239 * waittime - maximum time to wait 240 * nettype - transport type 241 */ 242 enum clnt_stat 243 rpc_broadcast_exp(rpcprog_t prog, rpcvers_t vers, rpcproc_t proc, 244 xdrproc_t xargs, caddr_t argsp, xdrproc_t xresults, caddr_t resultsp, 245 resultproc_t eachresult, int inittime, int waittime, 246 const char *nettype) 247 { 248 enum clnt_stat stat = RPC_SUCCESS; /* Return status */ 249 XDR xdr_stream; /* XDR stream */ 250 XDR *xdrs = &xdr_stream; 251 struct rpc_msg msg; /* RPC message */ 252 struct timeval t; 253 char *outbuf = NULL; /* Broadcast msg buffer */ 254 char *inbuf = NULL; /* Reply buf */ 255 int inlen; 256 u_int maxbufsize = 0; 257 AUTH *sys_auth = authunix_create_default(); 258 u_int i; 259 void *handle; 260 char uaddress[1024]; /* A self imposed limit */ 261 char *uaddrp = uaddress; 262 int pmap_reply_flag; /* reply recvd from PORTMAP */ 263 /* An array of all the suitable broadcast transports */ 264 struct { 265 int fd; /* File descriptor */ 266 int af; 267 int proto; 268 struct netconfig *nconf; /* Netconfig structure */ 269 u_int asize; /* Size of the addr buf */ 270 u_int dsize; /* Size of the data buf */ 271 struct sockaddr_storage raddr; /* Remote address */ 272 broadlist_t nal; 273 } fdlist[MAXBCAST]; 274 struct pollfd pfd[MAXBCAST]; 275 size_t fdlistno = 0; 276 struct r_rpcb_rmtcallargs barg; /* Remote arguments */ 277 struct r_rpcb_rmtcallres bres; /* Remote results */ 278 size_t outlen; 279 struct netconfig *nconf; 280 int msec; 281 int pollretval; 282 int fds_found; 283 284 #ifdef PORTMAP 285 size_t outlen_pmap = 0; 286 u_long port; /* Remote port number */ 287 int pmap_flag = 0; /* UDP exists ? */ 288 char *outbuf_pmap = NULL; 289 struct rmtcallargs barg_pmap; /* Remote arguments */ 290 struct rmtcallres bres_pmap; /* Remote results */ 291 u_int udpbufsz = 0; 292 #endif /* PORTMAP */ 293 294 if (sys_auth == NULL) { 295 return (RPC_SYSTEMERROR); 296 } 297 /* 298 * initialization: create a fd, a broadcast address, and send the 299 * request on the broadcast transport. 300 * Listen on all of them and on replies, call the user supplied 301 * function. 302 */ 303 304 if (nettype == NULL) 305 nettype = "datagram_n"; 306 if ((handle = __rpc_setconf(nettype)) == NULL) { 307 AUTH_DESTROY(sys_auth); 308 return (RPC_UNKNOWNPROTO); 309 } 310 while ((nconf = __rpc_getconf(handle)) != NULL) { 311 int fd; 312 struct __rpc_sockinfo si; 313 314 if (nconf->nc_semantics != NC_TPI_CLTS) 315 continue; 316 if (fdlistno >= MAXBCAST) 317 break; /* No more slots available */ 318 if (!__rpc_nconf2sockinfo(nconf, &si)) 319 continue; 320 321 TAILQ_INIT(&fdlist[fdlistno].nal); 322 if (__rpc_getbroadifs(si.si_af, si.si_proto, si.si_socktype, 323 &fdlist[fdlistno].nal) == 0) 324 continue; 325 326 fd = _socket(si.si_af, si.si_socktype, si.si_proto); 327 if (fd < 0) { 328 stat = RPC_CANTSEND; 329 continue; 330 } 331 fdlist[fdlistno].af = si.si_af; 332 fdlist[fdlistno].proto = si.si_proto; 333 fdlist[fdlistno].fd = fd; 334 fdlist[fdlistno].nconf = nconf; 335 fdlist[fdlistno].asize = __rpc_get_a_size(si.si_af); 336 pfd[fdlistno].events = POLLIN | POLLPRI | 337 POLLRDNORM | POLLRDBAND; 338 pfd[fdlistno].fd = fdlist[fdlistno].fd = fd; 339 fdlist[fdlistno].dsize = __rpc_get_t_size(si.si_af, si.si_proto, 340 0); 341 342 if (maxbufsize <= fdlist[fdlistno].dsize) 343 maxbufsize = fdlist[fdlistno].dsize; 344 345 #ifdef PORTMAP 346 if (si.si_af == AF_INET && si.si_proto == IPPROTO_UDP) { 347 udpbufsz = fdlist[fdlistno].dsize; 348 outbuf_pmap = reallocf(outbuf_pmap, udpbufsz); 349 if (outbuf_pmap == NULL) { 350 _close(fd); 351 stat = RPC_SYSTEMERROR; 352 goto done_broad; 353 } 354 pmap_flag = 1; 355 } 356 #endif /* PORTMAP */ 357 fdlistno++; 358 } 359 360 if (fdlistno == 0) { 361 if (stat == RPC_SUCCESS) 362 stat = RPC_UNKNOWNPROTO; 363 goto done_broad; 364 } 365 if (maxbufsize == 0) { 366 if (stat == RPC_SUCCESS) 367 stat = RPC_CANTSEND; 368 goto done_broad; 369 } 370 inbuf = malloc(maxbufsize); 371 outbuf = malloc(maxbufsize); 372 if ((inbuf == NULL) || (outbuf == NULL)) { 373 stat = RPC_SYSTEMERROR; 374 goto done_broad; 375 } 376 377 /* Serialize all the arguments which have to be sent */ 378 (void) gettimeofday(&t, NULL); 379 msg.rm_xid = __RPC_GETXID(&t); 380 msg.rm_direction = CALL; 381 msg.rm_call.cb_rpcvers = RPC_MSG_VERSION; 382 msg.rm_call.cb_prog = RPCBPROG; 383 msg.rm_call.cb_vers = RPCBVERS; 384 msg.rm_call.cb_proc = RPCBPROC_CALLIT; 385 barg.prog = prog; 386 barg.vers = vers; 387 barg.proc = proc; 388 barg.args.args_val = argsp; 389 barg.xdr_args = xargs; 390 bres.addr = uaddrp; 391 bres.results.results_val = resultsp; 392 bres.xdr_res = xresults; 393 msg.rm_call.cb_cred = sys_auth->ah_cred; 394 msg.rm_call.cb_verf = sys_auth->ah_verf; 395 xdrmem_create(xdrs, outbuf, maxbufsize, XDR_ENCODE); 396 if ((!xdr_callmsg(xdrs, &msg)) || 397 (!xdr_rpcb_rmtcallargs(xdrs, 398 (struct rpcb_rmtcallargs *)(void *)&barg))) { 399 stat = RPC_CANTENCODEARGS; 400 goto done_broad; 401 } 402 outlen = xdr_getpos(xdrs); 403 xdr_destroy(xdrs); 404 405 #ifdef PORTMAP 406 /* Prepare the packet for version 2 PORTMAP */ 407 if (pmap_flag) { 408 msg.rm_xid++; /* One way to distinguish */ 409 msg.rm_call.cb_prog = PMAPPROG; 410 msg.rm_call.cb_vers = PMAPVERS; 411 msg.rm_call.cb_proc = PMAPPROC_CALLIT; 412 barg_pmap.prog = prog; 413 barg_pmap.vers = vers; 414 barg_pmap.proc = proc; 415 barg_pmap.args_ptr = argsp; 416 barg_pmap.xdr_args = xargs; 417 bres_pmap.port_ptr = &port; 418 bres_pmap.xdr_results = xresults; 419 bres_pmap.results_ptr = resultsp; 420 xdrmem_create(xdrs, outbuf_pmap, udpbufsz, XDR_ENCODE); 421 if ((! xdr_callmsg(xdrs, &msg)) || 422 (! xdr_rmtcall_args(xdrs, &barg_pmap))) { 423 stat = RPC_CANTENCODEARGS; 424 goto done_broad; 425 } 426 outlen_pmap = xdr_getpos(xdrs); 427 xdr_destroy(xdrs); 428 } 429 #endif /* PORTMAP */ 430 431 /* 432 * Basic loop: broadcast the packets to transports which 433 * support data packets of size such that one can encode 434 * all the arguments. 435 * Wait a while for response(s). 436 * The response timeout grows larger per iteration. 437 */ 438 for (msec = inittime; msec <= waittime; msec += msec) { 439 struct broadif *bip; 440 441 /* Broadcast all the packets now */ 442 for (i = 0; i < fdlistno; i++) { 443 if (fdlist[i].dsize < outlen) { 444 stat = RPC_CANTSEND; 445 continue; 446 } 447 for (bip = TAILQ_FIRST(&fdlist[i].nal); bip != NULL; 448 bip = TAILQ_NEXT(bip, link)) { 449 void *addr; 450 451 addr = &bip->broadaddr; 452 453 __rpc_broadenable(fdlist[i].af, fdlist[i].fd, 454 bip); 455 456 /* 457 * Only use version 3 if lowvers is not set 458 */ 459 460 if (!__rpc_lowvers) 461 if (_sendto(fdlist[i].fd, outbuf, 462 outlen, 0, (struct sockaddr*)addr, 463 (size_t)fdlist[i].asize) != 464 outlen) { 465 #ifdef RPC_DEBUG 466 perror("sendto"); 467 #endif 468 warnx("clnt_bcast: cannot send " 469 "broadcast packet"); 470 stat = RPC_CANTSEND; 471 continue; 472 } 473 #ifdef RPC_DEBUG 474 if (!__rpc_lowvers) 475 fprintf(stderr, "Broadcast packet sent " 476 "for %s\n", 477 fdlist[i].nconf->nc_netid); 478 #endif 479 #ifdef PORTMAP 480 /* 481 * Send the version 2 packet also 482 * for UDP/IP 483 */ 484 if (pmap_flag && 485 fdlist[i].proto == IPPROTO_UDP) { 486 if (_sendto(fdlist[i].fd, outbuf_pmap, 487 outlen_pmap, 0, addr, 488 (size_t)fdlist[i].asize) != 489 outlen_pmap) { 490 warnx("clnt_bcast: " 491 "Cannot send broadcast packet"); 492 stat = RPC_CANTSEND; 493 continue; 494 } 495 } 496 #ifdef RPC_DEBUG 497 fprintf(stderr, "PMAP Broadcast packet " 498 "sent for %s\n", 499 fdlist[i].nconf->nc_netid); 500 #endif 501 #endif /* PORTMAP */ 502 } 503 /* End for sending all packets on this transport */ 504 } /* End for sending on all transports */ 505 506 if (eachresult == NULL) { 507 stat = RPC_SUCCESS; 508 goto done_broad; 509 } 510 511 /* 512 * Get all the replies from these broadcast requests 513 */ 514 recv_again: 515 516 switch (pollretval = _poll(pfd, fdlistno, msec)) { 517 case 0: /* timed out */ 518 stat = RPC_TIMEDOUT; 519 continue; 520 case -1: /* some kind of error - we ignore it */ 521 goto recv_again; 522 } /* end of poll results switch */ 523 524 for (i = fds_found = 0; 525 i < fdlistno && fds_found < pollretval; i++) { 526 bool_t done = FALSE; 527 528 if (pfd[i].revents == 0) 529 continue; 530 else if (pfd[i].revents & POLLNVAL) { 531 /* 532 * Something bad has happened to this descri- 533 * ptor. We can cause _poll() to ignore 534 * it simply by using a negative fd. We do that 535 * rather than compacting the pfd[] and fdlist[] 536 * arrays. 537 */ 538 pfd[i].fd = -1; 539 fds_found++; 540 continue; 541 } else 542 fds_found++; 543 #ifdef RPC_DEBUG 544 fprintf(stderr, "response for %s\n", 545 fdlist[i].nconf->nc_netid); 546 #endif 547 try_again: 548 inlen = _recvfrom(fdlist[i].fd, inbuf, fdlist[i].dsize, 549 0, (struct sockaddr *)(void *)&fdlist[i].raddr, 550 &fdlist[i].asize); 551 if (inlen < 0) { 552 if (errno == EINTR) 553 goto try_again; 554 warnx("clnt_bcast: Cannot receive reply to " 555 "broadcast"); 556 stat = RPC_CANTRECV; 557 continue; 558 } 559 if (inlen < sizeof (u_int32_t)) 560 continue; /* Drop that and go ahead */ 561 /* 562 * see if reply transaction id matches sent id. 563 * If so, decode the results. If return id is xid + 1 564 * it was a PORTMAP reply 565 */ 566 if (*((u_int32_t *)(void *)(inbuf)) == 567 *((u_int32_t *)(void *)(outbuf))) { 568 pmap_reply_flag = 0; 569 msg.acpted_rply.ar_verf = _null_auth; 570 msg.acpted_rply.ar_results.where = 571 (caddr_t)(void *)&bres; 572 msg.acpted_rply.ar_results.proc = 573 (xdrproc_t)xdr_rpcb_rmtcallres; 574 #ifdef PORTMAP 575 } else if (pmap_flag && 576 *((u_int32_t *)(void *)(inbuf)) == 577 *((u_int32_t *)(void *)(outbuf_pmap))) { 578 pmap_reply_flag = 1; 579 msg.acpted_rply.ar_verf = _null_auth; 580 msg.acpted_rply.ar_results.where = 581 (caddr_t)(void *)&bres_pmap; 582 msg.acpted_rply.ar_results.proc = 583 (xdrproc_t)xdr_rmtcallres; 584 #endif /* PORTMAP */ 585 } else 586 continue; 587 xdrmem_create(xdrs, inbuf, (u_int)inlen, XDR_DECODE); 588 if (xdr_replymsg(xdrs, &msg)) { 589 if ((msg.rm_reply.rp_stat == MSG_ACCEPTED) && 590 (msg.acpted_rply.ar_stat == SUCCESS)) { 591 struct netbuf taddr, *np; 592 struct sockaddr_in *sin; 593 594 #ifdef PORTMAP 595 if (pmap_flag && pmap_reply_flag) { 596 sin = (struct sockaddr_in *) 597 (void *)&fdlist[i].raddr; 598 sin->sin_port = 599 htons((u_short)port); 600 taddr.len = taddr.maxlen = 601 fdlist[i].raddr.ss_len; 602 taddr.buf = &fdlist[i].raddr; 603 done = (*eachresult)(resultsp, 604 &taddr, fdlist[i].nconf); 605 } else { 606 #endif /* PORTMAP */ 607 #ifdef RPC_DEBUG 608 fprintf(stderr, "uaddr %s\n", 609 uaddrp); 610 #endif 611 np = uaddr2taddr( 612 fdlist[i].nconf, uaddrp); 613 done = (*eachresult)(resultsp, 614 np, fdlist[i].nconf); 615 free(np); 616 #ifdef PORTMAP 617 } 618 #endif /* PORTMAP */ 619 } 620 /* otherwise, we just ignore the errors ... */ 621 } 622 /* else some kind of deserialization problem ... */ 623 624 xdrs->x_op = XDR_FREE; 625 msg.acpted_rply.ar_results.proc = (xdrproc_t) xdr_void; 626 (void) xdr_replymsg(xdrs, &msg); 627 (void) (*xresults)(xdrs, resultsp); 628 XDR_DESTROY(xdrs); 629 if (done) { 630 stat = RPC_SUCCESS; 631 goto done_broad; 632 } else { 633 goto recv_again; 634 } 635 } /* The recv for loop */ 636 } /* The giant for loop */ 637 638 done_broad: 639 free(inbuf); 640 free(outbuf); 641 #ifdef PORTMAP 642 free(outbuf_pmap); 643 #endif /* PORTMAP */ 644 for (i = 0; i < fdlistno; i++) { 645 (void)_close(fdlist[i].fd); 646 __rpc_freebroadifs(&fdlist[i].nal); 647 } 648 AUTH_DESTROY(sys_auth); 649 (void) __rpc_endconf(handle); 650 651 return (stat); 652 } 653 654 /* 655 * rpc_broadcast() 656 * 657 * prog - program number 658 * vers - version number 659 * proc - procedure number 660 * xargs - xdr routine for args 661 * argsp - pointer to args 662 * xresults - xdr routine for results 663 * resultsp - pointer to results 664 * eachresult - call with each result obtained 665 * nettype - transport type 666 */ 667 enum clnt_stat 668 rpc_broadcast(rpcprog_t prog, rpcvers_t vers, rpcproc_t proc, xdrproc_t xargs, 669 caddr_t argsp, xdrproc_t xresults, caddr_t resultsp, 670 resultproc_t eachresult, const char *nettype) 671 { 672 enum clnt_stat dummy; 673 674 dummy = rpc_broadcast_exp(prog, vers, proc, xargs, argsp, 675 xresults, resultsp, eachresult, 676 INITTIME, WAITTIME, nettype); 677 return (dummy); 678 } 679