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 __FBSDID("$FreeBSD$"); 42 43 44 /* 45 * clnt_bcast.c 46 * Client interface to broadcast service. 47 * 48 * Copyright (C) 1988, Sun Microsystems, Inc. 49 * 50 * The following is kludged-up support for simple rpc broadcasts. 51 * Someday a large, complicated system will replace these routines. 52 */ 53 54 #include "namespace.h" 55 #include <sys/types.h> 56 #include <sys/socket.h> 57 #include <sys/queue.h> 58 #include <net/if.h> 59 #include <netinet/in.h> 60 #include <ifaddrs.h> 61 #include <sys/poll.h> 62 #include <rpc/rpc.h> 63 #ifdef PORTMAP 64 #include <rpc/pmap_prot.h> 65 #include <rpc/pmap_clnt.h> 66 #include <rpc/pmap_rmt.h> 67 #endif /* PORTMAP */ 68 #include <rpc/nettype.h> 69 #include <arpa/inet.h> 70 #ifdef RPC_DEBUG 71 #include <stdio.h> 72 #endif 73 #include <errno.h> 74 #include <stdlib.h> 75 #include <unistd.h> 76 #include <netdb.h> 77 #include <err.h> 78 #include <string.h> 79 #include "un-namespace.h" 80 81 #include "rpc_com.h" 82 83 #define MAXBCAST 20 /* Max no of broadcasting transports */ 84 #define INITTIME 4000 /* Time to wait initially */ 85 #define WAITTIME 8000 /* Maximum time to wait */ 86 87 /* 88 * If nettype is NULL, it broadcasts on all the available 89 * datagram_n transports. May potentially lead to broadacst storms 90 * and hence should be used with caution, care and courage. 91 * 92 * The current parameter xdr packet size is limited by the max tsdu 93 * size of the transport. If the max tsdu size of any transport is 94 * smaller than the parameter xdr packet, then broadcast is not 95 * sent on that transport. 96 * 97 * Also, the packet size should be less the packet size of 98 * the data link layer (for ethernet it is 1400 bytes). There is 99 * no easy way to find out the max size of the data link layer and 100 * we are assuming that the args would be smaller than that. 101 * 102 * The result size has to be smaller than the transport tsdu size. 103 * 104 * If PORTMAP has been defined, we send two packets for UDP, one for 105 * rpcbind and one for portmap. For those machines which support 106 * both rpcbind and portmap, it will cause them to reply twice, and 107 * also here it will get two responses ... inefficient and clumsy. 108 */ 109 110 struct broadif { 111 int index; 112 struct sockaddr_storage broadaddr; 113 TAILQ_ENTRY(broadif) link; 114 }; 115 116 typedef TAILQ_HEAD(, broadif) broadlist_t; 117 118 int __rpc_getbroadifs(int, int, int, broadlist_t *); 119 void __rpc_freebroadifs(broadlist_t *); 120 int __rpc_broadenable(int, int, struct broadif *); 121 122 int __rpc_lowvers = 0; 123 124 int 125 __rpc_getbroadifs(int af, int proto, int socktype, broadlist_t *list) 126 { 127 int count = 0; 128 struct broadif *bip; 129 struct ifaddrs *ifap, *ifp; 130 #ifdef INET6 131 struct sockaddr_in6 *sin6; 132 #endif 133 struct sockaddr_in *sin; 134 struct addrinfo hints, *res; 135 136 if (getifaddrs(&ifp) < 0) 137 return 0; 138 139 memset(&hints, 0, sizeof hints); 140 141 hints.ai_family = af; 142 hints.ai_protocol = proto; 143 hints.ai_socktype = socktype; 144 145 if (getaddrinfo(NULL, "sunrpc", &hints, &res) != 0) { 146 freeifaddrs(ifp); 147 return 0; 148 } 149 150 for (ifap = ifp; ifap != NULL; ifap = ifap->ifa_next) { 151 if (ifap->ifa_addr->sa_family != af || 152 !(ifap->ifa_flags & IFF_UP)) 153 continue; 154 bip = (struct broadif *)malloc(sizeof *bip); 155 if (bip == NULL) 156 break; 157 bip->index = if_nametoindex(ifap->ifa_name); 158 if ( 159 #ifdef INET6 160 af != AF_INET6 && 161 #endif 162 (ifap->ifa_flags & IFF_BROADCAST) && 163 ifap->ifa_broadaddr) { 164 memcpy(&bip->broadaddr, ifap->ifa_broadaddr, 165 (size_t)ifap->ifa_broadaddr->sa_len); 166 sin = (struct sockaddr_in *)(void *)&bip->broadaddr; 167 sin->sin_port = 168 ((struct sockaddr_in *) 169 (void *)res->ai_addr)->sin_port; 170 } else 171 #ifdef INET6 172 if (af == AF_INET6 && (ifap->ifa_flags & IFF_MULTICAST)) { 173 sin6 = (struct sockaddr_in6 *)(void *)&bip->broadaddr; 174 inet_pton(af, RPCB_MULTICAST_ADDR, &sin6->sin6_addr); 175 sin6->sin6_family = af; 176 sin6->sin6_len = sizeof *sin6; 177 sin6->sin6_port = 178 ((struct sockaddr_in6 *) 179 (void *)res->ai_addr)->sin6_port; 180 sin6->sin6_scope_id = bip->index; 181 } else 182 #endif 183 { 184 free(bip); 185 continue; 186 } 187 TAILQ_INSERT_TAIL(list, bip, link); 188 count++; 189 } 190 freeifaddrs(ifp); 191 freeaddrinfo(res); 192 193 return count; 194 } 195 196 void 197 __rpc_freebroadifs(broadlist_t *list) 198 { 199 struct broadif *bip, *next; 200 201 bip = TAILQ_FIRST(list); 202 203 while (bip != NULL) { 204 next = TAILQ_NEXT(bip, link); 205 free(bip); 206 bip = next; 207 } 208 } 209 210 int 211 /*ARGSUSED*/ 212 __rpc_broadenable(int af, int s, struct broadif *bip) 213 { 214 int o = 1; 215 216 #if 0 217 if (af == AF_INET6) { 218 fprintf(stderr, "set v6 multicast if to %d\n", bip->index); 219 if (_setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_IF, &bip->index, 220 sizeof bip->index) < 0) 221 return -1; 222 } else 223 #endif 224 if (_setsockopt(s, SOL_SOCKET, SO_BROADCAST, &o, sizeof o) < 0) 225 return -1; 226 227 return 0; 228 } 229 230 /* 231 * rpc_broadcast_exp() 232 * 233 * prog - program number 234 * vers - version number 235 * proc - procedure number 236 * xargs - xdr routine for args 237 * argsp - pointer to args 238 * xresults - xdr routine for results 239 * resultsp - pointer to results 240 * eachresult - call with each result obtained 241 * inittime - how long to wait initially 242 * waittime - maximum time to wait 243 * nettype - transport type 244 */ 245 enum clnt_stat 246 rpc_broadcast_exp(rpcprog_t prog, rpcvers_t vers, rpcproc_t proc, 247 xdrproc_t xargs, caddr_t argsp, xdrproc_t xresults, caddr_t resultsp, 248 resultproc_t eachresult, int inittime, int waittime, 249 const char *nettype) 250 { 251 enum clnt_stat stat = RPC_SUCCESS; /* Return status */ 252 XDR xdr_stream; /* XDR stream */ 253 XDR *xdrs = &xdr_stream; 254 struct rpc_msg msg; /* RPC message */ 255 struct timeval t; 256 char *outbuf = NULL; /* Broadcast msg buffer */ 257 char *inbuf = NULL; /* Reply buf */ 258 int inlen; 259 u_int maxbufsize = 0; 260 AUTH *sys_auth = authunix_create_default(); 261 u_int i; 262 void *handle; 263 char uaddress[1024]; /* A self imposed limit */ 264 char *uaddrp = uaddress; 265 int pmap_reply_flag; /* reply recvd from PORTMAP */ 266 /* An array of all the suitable broadcast transports */ 267 struct { 268 int fd; /* File descriptor */ 269 int af; 270 int proto; 271 struct netconfig *nconf; /* Netconfig structure */ 272 u_int asize; /* Size of the addr buf */ 273 u_int dsize; /* Size of the data buf */ 274 struct sockaddr_storage raddr; /* Remote address */ 275 broadlist_t nal; 276 } fdlist[MAXBCAST]; 277 struct pollfd pfd[MAXBCAST]; 278 size_t fdlistno = 0; 279 struct r_rpcb_rmtcallargs barg; /* Remote arguments */ 280 struct r_rpcb_rmtcallres bres; /* Remote results */ 281 size_t outlen; 282 struct netconfig *nconf; 283 int msec; 284 int pollretval; 285 int fds_found; 286 287 #ifdef PORTMAP 288 size_t outlen_pmap = 0; 289 u_long port; /* Remote port number */ 290 int pmap_flag = 0; /* UDP exists ? */ 291 char *outbuf_pmap = NULL; 292 struct rmtcallargs barg_pmap; /* Remote arguments */ 293 struct rmtcallres bres_pmap; /* Remote results */ 294 u_int udpbufsz = 0; 295 #endif /* PORTMAP */ 296 297 if (sys_auth == NULL) { 298 return (RPC_SYSTEMERROR); 299 } 300 /* 301 * initialization: create a fd, a broadcast address, and send the 302 * request on the broadcast transport. 303 * Listen on all of them and on replies, call the user supplied 304 * function. 305 */ 306 307 if (nettype == NULL) 308 nettype = "datagram_n"; 309 if ((handle = __rpc_setconf(nettype)) == NULL) { 310 AUTH_DESTROY(sys_auth); 311 return (RPC_UNKNOWNPROTO); 312 } 313 while ((nconf = __rpc_getconf(handle)) != NULL) { 314 int fd; 315 struct __rpc_sockinfo si; 316 317 if (nconf->nc_semantics != NC_TPI_CLTS) 318 continue; 319 if (fdlistno >= MAXBCAST) 320 break; /* No more slots available */ 321 if (!__rpc_nconf2sockinfo(nconf, &si)) 322 continue; 323 324 TAILQ_INIT(&fdlist[fdlistno].nal); 325 if (__rpc_getbroadifs(si.si_af, si.si_proto, si.si_socktype, 326 &fdlist[fdlistno].nal) == 0) 327 continue; 328 329 fd = _socket(si.si_af, si.si_socktype, si.si_proto); 330 if (fd < 0) { 331 stat = RPC_CANTSEND; 332 continue; 333 } 334 fdlist[fdlistno].af = si.si_af; 335 fdlist[fdlistno].proto = si.si_proto; 336 fdlist[fdlistno].fd = fd; 337 fdlist[fdlistno].nconf = nconf; 338 fdlist[fdlistno].asize = __rpc_get_a_size(si.si_af); 339 pfd[fdlistno].events = POLLIN | POLLPRI | 340 POLLRDNORM | POLLRDBAND; 341 pfd[fdlistno].fd = fdlist[fdlistno].fd = fd; 342 fdlist[fdlistno].dsize = __rpc_get_t_size(si.si_af, si.si_proto, 343 0); 344 345 if (maxbufsize <= fdlist[fdlistno].dsize) 346 maxbufsize = fdlist[fdlistno].dsize; 347 348 #ifdef PORTMAP 349 if (si.si_af == AF_INET && si.si_proto == IPPROTO_UDP) { 350 udpbufsz = fdlist[fdlistno].dsize; 351 outbuf_pmap = reallocf(outbuf_pmap, udpbufsz); 352 if (outbuf_pmap == NULL) { 353 _close(fd); 354 stat = RPC_SYSTEMERROR; 355 goto done_broad; 356 } 357 pmap_flag = 1; 358 } 359 #endif /* PORTMAP */ 360 fdlistno++; 361 } 362 363 if (fdlistno == 0) { 364 if (stat == RPC_SUCCESS) 365 stat = RPC_UNKNOWNPROTO; 366 goto done_broad; 367 } 368 if (maxbufsize == 0) { 369 if (stat == RPC_SUCCESS) 370 stat = RPC_CANTSEND; 371 goto done_broad; 372 } 373 inbuf = malloc(maxbufsize); 374 outbuf = malloc(maxbufsize); 375 if ((inbuf == NULL) || (outbuf == NULL)) { 376 stat = RPC_SYSTEMERROR; 377 goto done_broad; 378 } 379 380 /* Serialize all the arguments which have to be sent */ 381 (void) gettimeofday(&t, NULL); 382 msg.rm_xid = __RPC_GETXID(&t); 383 msg.rm_direction = CALL; 384 msg.rm_call.cb_rpcvers = RPC_MSG_VERSION; 385 msg.rm_call.cb_prog = RPCBPROG; 386 msg.rm_call.cb_vers = RPCBVERS; 387 msg.rm_call.cb_proc = RPCBPROC_CALLIT; 388 barg.prog = prog; 389 barg.vers = vers; 390 barg.proc = proc; 391 barg.args.args_val = argsp; 392 barg.xdr_args = xargs; 393 bres.addr = uaddrp; 394 bres.results.results_val = resultsp; 395 bres.xdr_res = xresults; 396 msg.rm_call.cb_cred = sys_auth->ah_cred; 397 msg.rm_call.cb_verf = sys_auth->ah_verf; 398 xdrmem_create(xdrs, outbuf, maxbufsize, XDR_ENCODE); 399 if ((!xdr_callmsg(xdrs, &msg)) || 400 (!xdr_rpcb_rmtcallargs(xdrs, 401 (struct rpcb_rmtcallargs *)(void *)&barg))) { 402 stat = RPC_CANTENCODEARGS; 403 goto done_broad; 404 } 405 outlen = xdr_getpos(xdrs); 406 xdr_destroy(xdrs); 407 408 #ifdef PORTMAP 409 /* Prepare the packet for version 2 PORTMAP */ 410 if (pmap_flag) { 411 msg.rm_xid++; /* One way to distinguish */ 412 msg.rm_call.cb_prog = PMAPPROG; 413 msg.rm_call.cb_vers = PMAPVERS; 414 msg.rm_call.cb_proc = PMAPPROC_CALLIT; 415 barg_pmap.prog = prog; 416 barg_pmap.vers = vers; 417 barg_pmap.proc = proc; 418 barg_pmap.args_ptr = argsp; 419 barg_pmap.xdr_args = xargs; 420 bres_pmap.port_ptr = &port; 421 bres_pmap.xdr_results = xresults; 422 bres_pmap.results_ptr = resultsp; 423 xdrmem_create(xdrs, outbuf_pmap, udpbufsz, XDR_ENCODE); 424 if ((! xdr_callmsg(xdrs, &msg)) || 425 (! xdr_rmtcall_args(xdrs, &barg_pmap))) { 426 stat = RPC_CANTENCODEARGS; 427 goto done_broad; 428 } 429 outlen_pmap = xdr_getpos(xdrs); 430 xdr_destroy(xdrs); 431 } 432 #endif /* PORTMAP */ 433 434 /* 435 * Basic loop: broadcast the packets to transports which 436 * support data packets of size such that one can encode 437 * all the arguments. 438 * Wait a while for response(s). 439 * The response timeout grows larger per iteration. 440 */ 441 for (msec = inittime; msec <= waittime; msec += msec) { 442 struct broadif *bip; 443 444 /* Broadcast all the packets now */ 445 for (i = 0; i < fdlistno; i++) { 446 if (fdlist[i].dsize < outlen) { 447 stat = RPC_CANTSEND; 448 continue; 449 } 450 for (bip = TAILQ_FIRST(&fdlist[i].nal); bip != NULL; 451 bip = TAILQ_NEXT(bip, link)) { 452 void *addr; 453 454 addr = &bip->broadaddr; 455 456 __rpc_broadenable(fdlist[i].af, fdlist[i].fd, 457 bip); 458 459 /* 460 * Only use version 3 if lowvers is not set 461 */ 462 463 if (!__rpc_lowvers) 464 if (_sendto(fdlist[i].fd, outbuf, 465 outlen, 0, (struct sockaddr*)addr, 466 (size_t)fdlist[i].asize) != 467 outlen) { 468 #ifdef RPC_DEBUG 469 perror("sendto"); 470 #endif 471 warnx("clnt_bcast: cannot send " 472 "broadcast packet"); 473 stat = RPC_CANTSEND; 474 continue; 475 } 476 #ifdef RPC_DEBUG 477 if (!__rpc_lowvers) 478 fprintf(stderr, "Broadcast packet sent " 479 "for %s\n", 480 fdlist[i].nconf->nc_netid); 481 #endif 482 #ifdef PORTMAP 483 /* 484 * Send the version 2 packet also 485 * for UDP/IP 486 */ 487 if (pmap_flag && 488 fdlist[i].proto == IPPROTO_UDP) { 489 if (_sendto(fdlist[i].fd, outbuf_pmap, 490 outlen_pmap, 0, addr, 491 (size_t)fdlist[i].asize) != 492 outlen_pmap) { 493 warnx("clnt_bcast: " 494 "Cannot send broadcast packet"); 495 stat = RPC_CANTSEND; 496 continue; 497 } 498 } 499 #ifdef RPC_DEBUG 500 fprintf(stderr, "PMAP Broadcast packet " 501 "sent for %s\n", 502 fdlist[i].nconf->nc_netid); 503 #endif 504 #endif /* PORTMAP */ 505 } 506 /* End for sending all packets on this transport */ 507 } /* End for sending on all transports */ 508 509 if (eachresult == NULL) { 510 stat = RPC_SUCCESS; 511 goto done_broad; 512 } 513 514 /* 515 * Get all the replies from these broadcast requests 516 */ 517 recv_again: 518 519 switch (pollretval = _poll(pfd, fdlistno, msec)) { 520 case 0: /* timed out */ 521 stat = RPC_TIMEDOUT; 522 continue; 523 case -1: /* some kind of error - we ignore it */ 524 goto recv_again; 525 } /* end of poll results switch */ 526 527 for (i = fds_found = 0; 528 i < fdlistno && fds_found < pollretval; i++) { 529 bool_t done = FALSE; 530 531 if (pfd[i].revents == 0) 532 continue; 533 else if (pfd[i].revents & POLLNVAL) { 534 /* 535 * Something bad has happened to this descri- 536 * ptor. We can cause _poll() to ignore 537 * it simply by using a negative fd. We do that 538 * rather than compacting the pfd[] and fdlist[] 539 * arrays. 540 */ 541 pfd[i].fd = -1; 542 fds_found++; 543 continue; 544 } else 545 fds_found++; 546 #ifdef RPC_DEBUG 547 fprintf(stderr, "response for %s\n", 548 fdlist[i].nconf->nc_netid); 549 #endif 550 try_again: 551 inlen = _recvfrom(fdlist[i].fd, inbuf, fdlist[i].dsize, 552 0, (struct sockaddr *)(void *)&fdlist[i].raddr, 553 &fdlist[i].asize); 554 if (inlen < 0) { 555 if (errno == EINTR) 556 goto try_again; 557 warnx("clnt_bcast: Cannot receive reply to " 558 "broadcast"); 559 stat = RPC_CANTRECV; 560 continue; 561 } 562 if (inlen < sizeof (u_int32_t)) 563 continue; /* Drop that and go ahead */ 564 /* 565 * see if reply transaction id matches sent id. 566 * If so, decode the results. If return id is xid + 1 567 * it was a PORTMAP reply 568 */ 569 if (*((u_int32_t *)(void *)(inbuf)) == 570 *((u_int32_t *)(void *)(outbuf))) { 571 pmap_reply_flag = 0; 572 msg.acpted_rply.ar_verf = _null_auth; 573 msg.acpted_rply.ar_results.where = 574 (caddr_t)(void *)&bres; 575 msg.acpted_rply.ar_results.proc = 576 (xdrproc_t)xdr_rpcb_rmtcallres; 577 #ifdef PORTMAP 578 } else if (pmap_flag && 579 *((u_int32_t *)(void *)(inbuf)) == 580 *((u_int32_t *)(void *)(outbuf_pmap))) { 581 pmap_reply_flag = 1; 582 msg.acpted_rply.ar_verf = _null_auth; 583 msg.acpted_rply.ar_results.where = 584 (caddr_t)(void *)&bres_pmap; 585 msg.acpted_rply.ar_results.proc = 586 (xdrproc_t)xdr_rmtcallres; 587 #endif /* PORTMAP */ 588 } else 589 continue; 590 xdrmem_create(xdrs, inbuf, (u_int)inlen, XDR_DECODE); 591 if (xdr_replymsg(xdrs, &msg)) { 592 if ((msg.rm_reply.rp_stat == MSG_ACCEPTED) && 593 (msg.acpted_rply.ar_stat == SUCCESS)) { 594 struct netbuf taddr, *np; 595 struct sockaddr_in *sin; 596 597 #ifdef PORTMAP 598 if (pmap_flag && pmap_reply_flag) { 599 sin = (struct sockaddr_in *) 600 (void *)&fdlist[i].raddr; 601 sin->sin_port = 602 htons((u_short)port); 603 taddr.len = taddr.maxlen = 604 fdlist[i].raddr.ss_len; 605 taddr.buf = &fdlist[i].raddr; 606 done = (*eachresult)(resultsp, 607 &taddr, fdlist[i].nconf); 608 } else { 609 #endif /* PORTMAP */ 610 #ifdef RPC_DEBUG 611 fprintf(stderr, "uaddr %s\n", 612 uaddrp); 613 #endif 614 np = uaddr2taddr( 615 fdlist[i].nconf, uaddrp); 616 done = (*eachresult)(resultsp, 617 np, fdlist[i].nconf); 618 free(np); 619 #ifdef PORTMAP 620 } 621 #endif /* PORTMAP */ 622 } 623 /* otherwise, we just ignore the errors ... */ 624 } 625 /* else some kind of deserialization problem ... */ 626 627 xdrs->x_op = XDR_FREE; 628 msg.acpted_rply.ar_results.proc = (xdrproc_t) xdr_void; 629 (void) xdr_replymsg(xdrs, &msg); 630 (void) (*xresults)(xdrs, resultsp); 631 XDR_DESTROY(xdrs); 632 if (done) { 633 stat = RPC_SUCCESS; 634 goto done_broad; 635 } else { 636 goto recv_again; 637 } 638 } /* The recv for loop */ 639 } /* The giant for loop */ 640 641 done_broad: 642 free(inbuf); 643 free(outbuf); 644 #ifdef PORTMAP 645 free(outbuf_pmap); 646 #endif /* PORTMAP */ 647 for (i = 0; i < fdlistno; i++) { 648 (void)_close(fdlist[i].fd); 649 __rpc_freebroadifs(&fdlist[i].nal); 650 } 651 AUTH_DESTROY(sys_auth); 652 (void) __rpc_endconf(handle); 653 654 return (stat); 655 } 656 657 /* 658 * rpc_broadcast() 659 * 660 * prog - program number 661 * vers - version number 662 * proc - procedure number 663 * xargs - xdr routine for args 664 * argsp - pointer to args 665 * xresults - xdr routine for results 666 * resultsp - pointer to results 667 * eachresult - call with each result obtained 668 * nettype - transport type 669 */ 670 enum clnt_stat 671 rpc_broadcast(rpcprog_t prog, rpcvers_t vers, rpcproc_t proc, xdrproc_t xargs, 672 caddr_t argsp, xdrproc_t xresults, caddr_t resultsp, 673 resultproc_t eachresult, const char *nettype) 674 { 675 enum clnt_stat dummy; 676 677 dummy = rpc_broadcast_exp(prog, vers, proc, xargs, argsp, 678 xresults, resultsp, eachresult, 679 INITTIME, WAITTIME, nettype); 680 return (dummy); 681 } 682