1 /* $NetBSD: clnt_bcast.c,v 1.3 2000/07/06 03:05:20 christos Exp $ */ 2 3 /* 4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 5 * unrestricted use provided that this legend is included on all tape 6 * media and as a part of the software program in whole or part. Users 7 * may copy or modify Sun RPC without charge, but are not authorized 8 * to license or distribute it to anyone else except as part of a product or 9 * program developed by the user. 10 * 11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 14 * 15 * Sun RPC is provided with no support and without any obligation on the 16 * part of Sun Microsystems, Inc. to assist in its use, correction, 17 * modification or enhancement. 18 * 19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 21 * OR ANY PART THEREOF. 22 * 23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 24 * or profits or other special, indirect and consequential damages, even if 25 * Sun has been advised of the possibility of such damages. 26 * 27 * Sun Microsystems, Inc. 28 * 2550 Garcia Avenue 29 * Mountain View, California 94043 30 */ 31 /* 32 * Copyright (c) 1986-1991 by Sun Microsystems Inc. 33 */ 34 35 #if defined(LIBC_SCCS) && !defined(lint) 36 #ident "@(#)clnt_bcast.c 1.18 94/05/03 SMI" 37 static char sccsid[] = "@(#)clnt_bcast.c 1.15 89/04/21 Copyr 1988 Sun Micro"; 38 #endif 39 #include <sys/cdefs.h> 40 __FBSDID("$FreeBSD$"); 41 42 43 /* 44 * clnt_bcast.c 45 * Client interface to broadcast service. 46 * 47 * Copyright (C) 1988, Sun Microsystems, Inc. 48 * 49 * The following is kludged-up support for simple rpc broadcasts. 50 * Someday a large, complicated system will replace these routines. 51 */ 52 53 #include "namespace.h" 54 #include <sys/types.h> 55 #include <sys/socket.h> 56 #include <sys/queue.h> 57 #include <net/if.h> 58 #include <netinet/in.h> 59 #include <ifaddrs.h> 60 #include <sys/poll.h> 61 #include <rpc/rpc.h> 62 #ifdef PORTMAP 63 #include <rpc/pmap_prot.h> 64 #include <rpc/pmap_clnt.h> 65 #include <rpc/pmap_rmt.h> 66 #endif /* PORTMAP */ 67 #include <rpc/nettype.h> 68 #include <arpa/inet.h> 69 #ifdef RPC_DEBUG 70 #include <stdio.h> 71 #endif 72 #include <errno.h> 73 #include <stdlib.h> 74 #include <unistd.h> 75 #include <netdb.h> 76 #include <err.h> 77 #include <string.h> 78 #include "un-namespace.h" 79 80 #include "rpc_com.h" 81 82 #define MAXBCAST 20 /* Max no of broadcasting transports */ 83 #define INITTIME 4000 /* Time to wait initially */ 84 #define WAITTIME 8000 /* Maximum time to wait */ 85 86 /* 87 * If nettype is NULL, it broadcasts on all the available 88 * datagram_n transports. May potentially lead to broadacst storms 89 * and hence should be used with caution, care and courage. 90 * 91 * The current parameter xdr packet size is limited by the max tsdu 92 * size of the transport. If the max tsdu size of any transport is 93 * smaller than the parameter xdr packet, then broadcast is not 94 * sent on that transport. 95 * 96 * Also, the packet size should be less the packet size of 97 * the data link layer (for ethernet it is 1400 bytes). There is 98 * no easy way to find out the max size of the data link layer and 99 * we are assuming that the args would be smaller than that. 100 * 101 * The result size has to be smaller than the transport tsdu size. 102 * 103 * If PORTMAP has been defined, we send two packets for UDP, one for 104 * rpcbind and one for portmap. For those machines which support 105 * both rpcbind and portmap, it will cause them to reply twice, and 106 * also here it will get two responses ... inefficient and clumsy. 107 */ 108 109 struct broadif { 110 int index; 111 struct sockaddr_storage broadaddr; 112 TAILQ_ENTRY(broadif) link; 113 }; 114 115 typedef TAILQ_HEAD(, broadif) broadlist_t; 116 117 int __rpc_getbroadifs(int, int, int, broadlist_t *); 118 void __rpc_freebroadifs(broadlist_t *); 119 int __rpc_broadenable(int, int, struct broadif *); 120 121 int __rpc_lowvers = 0; 122 123 int 124 __rpc_getbroadifs(int af, int proto, int socktype, broadlist_t *list) 125 { 126 int count = 0; 127 struct broadif *bip; 128 struct ifaddrs *ifap, *ifp; 129 #ifdef INET6 130 struct sockaddr_in6 *sin6; 131 #endif 132 struct sockaddr_in *sin; 133 struct addrinfo hints, *res; 134 135 if (getifaddrs(&ifp) < 0) 136 return 0; 137 138 memset(&hints, 0, sizeof hints); 139 140 hints.ai_family = af; 141 hints.ai_protocol = proto; 142 hints.ai_socktype = socktype; 143 144 if (getaddrinfo(NULL, "sunrpc", &hints, &res) != 0) { 145 freeifaddrs(ifp); 146 return 0; 147 } 148 149 for (ifap = ifp; ifap != NULL; ifap = ifap->ifa_next) { 150 if (ifap->ifa_addr->sa_family != af || 151 !(ifap->ifa_flags & IFF_UP)) 152 continue; 153 bip = (struct broadif *)malloc(sizeof *bip); 154 if (bip == NULL) 155 break; 156 bip->index = if_nametoindex(ifap->ifa_name); 157 if ( 158 #ifdef INET6 159 af != AF_INET6 && 160 #endif 161 (ifap->ifa_flags & IFF_BROADCAST) && 162 ifap->ifa_broadaddr) { 163 memcpy(&bip->broadaddr, ifap->ifa_broadaddr, 164 (size_t)ifap->ifa_broadaddr->sa_len); 165 sin = (struct sockaddr_in *)(void *)&bip->broadaddr; 166 sin->sin_port = 167 ((struct sockaddr_in *) 168 (void *)res->ai_addr)->sin_port; 169 } else 170 #ifdef INET6 171 if (af == AF_INET6 && (ifap->ifa_flags & IFF_MULTICAST)) { 172 sin6 = (struct sockaddr_in6 *)(void *)&bip->broadaddr; 173 inet_pton(af, RPCB_MULTICAST_ADDR, &sin6->sin6_addr); 174 sin6->sin6_family = af; 175 sin6->sin6_len = sizeof *sin6; 176 sin6->sin6_port = 177 ((struct sockaddr_in6 *) 178 (void *)res->ai_addr)->sin6_port; 179 sin6->sin6_scope_id = bip->index; 180 } else 181 #endif 182 { 183 free(bip); 184 continue; 185 } 186 TAILQ_INSERT_TAIL(list, bip, link); 187 count++; 188 } 189 freeifaddrs(ifp); 190 freeaddrinfo(res); 191 192 return count; 193 } 194 195 void 196 __rpc_freebroadifs(broadlist_t *list) 197 { 198 struct broadif *bip, *next; 199 200 bip = TAILQ_FIRST(list); 201 202 while (bip != NULL) { 203 next = TAILQ_NEXT(bip, link); 204 free(bip); 205 bip = next; 206 } 207 } 208 209 int 210 /*ARGSUSED*/ 211 __rpc_broadenable(int af, int s, struct broadif *bip) 212 { 213 int o = 1; 214 215 #if 0 216 if (af == AF_INET6) { 217 fprintf(stderr, "set v6 multicast if to %d\n", bip->index); 218 if (_setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_IF, &bip->index, 219 sizeof bip->index) < 0) 220 return -1; 221 } else 222 #endif 223 if (_setsockopt(s, SOL_SOCKET, SO_BROADCAST, &o, sizeof o) < 0) 224 return -1; 225 226 return 0; 227 } 228 229 230 enum clnt_stat 231 rpc_broadcast_exp(prog, vers, proc, xargs, argsp, xresults, resultsp, 232 eachresult, inittime, waittime, nettype) 233 rpcprog_t prog; /* program number */ 234 rpcvers_t vers; /* version number */ 235 rpcproc_t proc; /* procedure number */ 236 xdrproc_t xargs; /* xdr routine for args */ 237 caddr_t argsp; /* pointer to args */ 238 xdrproc_t xresults; /* xdr routine for results */ 239 caddr_t resultsp; /* pointer to results */ 240 resultproc_t eachresult; /* call with each result obtained */ 241 int inittime; /* how long to wait initially */ 242 int waittime; /* maximum time to wait */ 243 const char *nettype; /* transport type */ 244 { 245 enum clnt_stat stat = RPC_SUCCESS; /* Return status */ 246 XDR xdr_stream; /* XDR stream */ 247 XDR *xdrs = &xdr_stream; 248 struct rpc_msg msg; /* RPC message */ 249 struct timeval t; 250 char *outbuf = NULL; /* Broadcast msg buffer */ 251 char *inbuf = NULL; /* Reply buf */ 252 int inlen; 253 u_int maxbufsize = 0; 254 AUTH *sys_auth = authunix_create_default(); 255 int i; 256 void *handle; 257 char uaddress[1024]; /* A self imposed limit */ 258 char *uaddrp = uaddress; 259 int pmap_reply_flag; /* reply recvd from PORTMAP */ 260 /* An array of all the suitable broadcast transports */ 261 struct { 262 int fd; /* File descriptor */ 263 int af; 264 int proto; 265 struct netconfig *nconf; /* Netconfig structure */ 266 u_int asize; /* Size of the addr buf */ 267 u_int dsize; /* Size of the data buf */ 268 struct sockaddr_storage raddr; /* Remote address */ 269 broadlist_t nal; 270 } fdlist[MAXBCAST]; 271 struct pollfd pfd[MAXBCAST]; 272 size_t fdlistno = 0; 273 struct r_rpcb_rmtcallargs barg; /* Remote arguments */ 274 struct r_rpcb_rmtcallres bres; /* Remote results */ 275 size_t outlen; 276 struct netconfig *nconf; 277 int msec; 278 int pollretval; 279 int fds_found; 280 281 #ifdef PORTMAP 282 size_t outlen_pmap = 0; 283 u_long port; /* Remote port number */ 284 int pmap_flag = 0; /* UDP exists ? */ 285 char *outbuf_pmap = NULL; 286 struct rmtcallargs barg_pmap; /* Remote arguments */ 287 struct rmtcallres bres_pmap; /* Remote results */ 288 u_int udpbufsz = 0; 289 #endif /* PORTMAP */ 290 291 if (sys_auth == NULL) { 292 return (RPC_SYSTEMERROR); 293 } 294 /* 295 * initialization: create a fd, a broadcast address, and send the 296 * request on the broadcast transport. 297 * Listen on all of them and on replies, call the user supplied 298 * function. 299 */ 300 301 if (nettype == NULL) 302 nettype = "datagram_n"; 303 if ((handle = __rpc_setconf(nettype)) == NULL) { 304 AUTH_DESTROY(sys_auth); 305 return (RPC_UNKNOWNPROTO); 306 } 307 while ((nconf = __rpc_getconf(handle)) != NULL) { 308 int fd; 309 struct __rpc_sockinfo si; 310 311 if (nconf->nc_semantics != NC_TPI_CLTS) 312 continue; 313 if (fdlistno >= MAXBCAST) 314 break; /* No more slots available */ 315 if (!__rpc_nconf2sockinfo(nconf, &si)) 316 continue; 317 318 TAILQ_INIT(&fdlist[fdlistno].nal); 319 if (__rpc_getbroadifs(si.si_af, si.si_proto, si.si_socktype, 320 &fdlist[fdlistno].nal) == 0) 321 continue; 322 323 fd = _socket(si.si_af, si.si_socktype, si.si_proto); 324 if (fd < 0) { 325 stat = RPC_CANTSEND; 326 continue; 327 } 328 fdlist[fdlistno].af = si.si_af; 329 fdlist[fdlistno].proto = si.si_proto; 330 fdlist[fdlistno].fd = fd; 331 fdlist[fdlistno].nconf = nconf; 332 fdlist[fdlistno].asize = __rpc_get_a_size(si.si_af); 333 pfd[fdlistno].events = POLLIN | POLLPRI | 334 POLLRDNORM | POLLRDBAND; 335 pfd[fdlistno].fd = fdlist[fdlistno].fd = fd; 336 fdlist[fdlistno].dsize = __rpc_get_t_size(si.si_af, si.si_proto, 337 0); 338 339 if (maxbufsize <= fdlist[fdlistno].dsize) 340 maxbufsize = fdlist[fdlistno].dsize; 341 342 #ifdef PORTMAP 343 if (si.si_af == AF_INET && si.si_proto == IPPROTO_UDP) { 344 udpbufsz = fdlist[fdlistno].dsize; 345 if ((outbuf_pmap = malloc(udpbufsz)) == NULL) { 346 _close(fd); 347 stat = RPC_SYSTEMERROR; 348 goto done_broad; 349 } 350 pmap_flag = 1; 351 } 352 #endif /* PORTMAP */ 353 fdlistno++; 354 } 355 356 if (fdlistno == 0) { 357 if (stat == RPC_SUCCESS) 358 stat = RPC_UNKNOWNPROTO; 359 goto done_broad; 360 } 361 if (maxbufsize == 0) { 362 if (stat == RPC_SUCCESS) 363 stat = RPC_CANTSEND; 364 goto done_broad; 365 } 366 inbuf = malloc(maxbufsize); 367 outbuf = malloc(maxbufsize); 368 if ((inbuf == NULL) || (outbuf == NULL)) { 369 stat = RPC_SYSTEMERROR; 370 goto done_broad; 371 } 372 373 /* Serialize all the arguments which have to be sent */ 374 (void) gettimeofday(&t, NULL); 375 msg.rm_xid = __RPC_GETXID(&t); 376 msg.rm_direction = CALL; 377 msg.rm_call.cb_rpcvers = RPC_MSG_VERSION; 378 msg.rm_call.cb_prog = RPCBPROG; 379 msg.rm_call.cb_vers = RPCBVERS; 380 msg.rm_call.cb_proc = RPCBPROC_CALLIT; 381 barg.prog = prog; 382 barg.vers = vers; 383 barg.proc = proc; 384 barg.args.args_val = argsp; 385 barg.xdr_args = xargs; 386 bres.addr = uaddrp; 387 bres.results.results_val = resultsp; 388 bres.xdr_res = xresults; 389 msg.rm_call.cb_cred = sys_auth->ah_cred; 390 msg.rm_call.cb_verf = sys_auth->ah_verf; 391 xdrmem_create(xdrs, outbuf, maxbufsize, XDR_ENCODE); 392 if ((!xdr_callmsg(xdrs, &msg)) || 393 (!xdr_rpcb_rmtcallargs(xdrs, 394 (struct rpcb_rmtcallargs *)(void *)&barg))) { 395 stat = RPC_CANTENCODEARGS; 396 goto done_broad; 397 } 398 outlen = xdr_getpos(xdrs); 399 xdr_destroy(xdrs); 400 401 #ifdef PORTMAP 402 /* Prepare the packet for version 2 PORTMAP */ 403 if (pmap_flag) { 404 msg.rm_xid++; /* One way to distinguish */ 405 msg.rm_call.cb_prog = PMAPPROG; 406 msg.rm_call.cb_vers = PMAPVERS; 407 msg.rm_call.cb_proc = PMAPPROC_CALLIT; 408 barg_pmap.prog = prog; 409 barg_pmap.vers = vers; 410 barg_pmap.proc = proc; 411 barg_pmap.args_ptr = argsp; 412 barg_pmap.xdr_args = xargs; 413 bres_pmap.port_ptr = &port; 414 bres_pmap.xdr_results = xresults; 415 bres_pmap.results_ptr = resultsp; 416 xdrmem_create(xdrs, outbuf_pmap, udpbufsz, XDR_ENCODE); 417 if ((! xdr_callmsg(xdrs, &msg)) || 418 (! xdr_rmtcall_args(xdrs, &barg_pmap))) { 419 stat = RPC_CANTENCODEARGS; 420 goto done_broad; 421 } 422 outlen_pmap = xdr_getpos(xdrs); 423 xdr_destroy(xdrs); 424 } 425 #endif /* PORTMAP */ 426 427 /* 428 * Basic loop: broadcast the packets to transports which 429 * support data packets of size such that one can encode 430 * all the arguments. 431 * Wait a while for response(s). 432 * The response timeout grows larger per iteration. 433 */ 434 for (msec = inittime; msec <= waittime; msec += msec) { 435 struct broadif *bip; 436 437 /* Broadcast all the packets now */ 438 for (i = 0; i < fdlistno; i++) { 439 if (fdlist[i].dsize < outlen) { 440 stat = RPC_CANTSEND; 441 continue; 442 } 443 for (bip = TAILQ_FIRST(&fdlist[i].nal); bip != NULL; 444 bip = TAILQ_NEXT(bip, link)) { 445 void *addr; 446 447 addr = &bip->broadaddr; 448 449 __rpc_broadenable(fdlist[i].af, fdlist[i].fd, 450 bip); 451 452 /* 453 * Only use version 3 if lowvers is not set 454 */ 455 456 if (!__rpc_lowvers) 457 if (_sendto(fdlist[i].fd, outbuf, 458 outlen, 0, (struct sockaddr*)addr, 459 (size_t)fdlist[i].asize) != 460 outlen) { 461 #ifdef RPC_DEBUG 462 perror("sendto"); 463 #endif 464 warnx("clnt_bcast: cannot send" 465 "broadcast packet"); 466 stat = RPC_CANTSEND; 467 continue; 468 }; 469 #ifdef RPC_DEBUG 470 if (!__rpc_lowvers) 471 fprintf(stderr, "Broadcast packet sent " 472 "for %s\n", 473 fdlist[i].nconf->nc_netid); 474 #endif 475 #ifdef PORTMAP 476 /* 477 * Send the version 2 packet also 478 * for UDP/IP 479 */ 480 if (pmap_flag && 481 fdlist[i].proto == IPPROTO_UDP) { 482 if (_sendto(fdlist[i].fd, outbuf_pmap, 483 outlen_pmap, 0, addr, 484 (size_t)fdlist[i].asize) != 485 outlen_pmap) { 486 warnx("clnt_bcast: " 487 "Cannot send broadcast packet"); 488 stat = RPC_CANTSEND; 489 continue; 490 } 491 } 492 #ifdef RPC_DEBUG 493 fprintf(stderr, "PMAP Broadcast packet " 494 "sent for %s\n", 495 fdlist[i].nconf->nc_netid); 496 #endif 497 #endif /* PORTMAP */ 498 } 499 /* End for sending all packets on this transport */ 500 } /* End for sending on all transports */ 501 502 if (eachresult == NULL) { 503 stat = RPC_SUCCESS; 504 goto done_broad; 505 } 506 507 /* 508 * Get all the replies from these broadcast requests 509 */ 510 recv_again: 511 512 switch (pollretval = _poll(pfd, fdlistno, msec)) { 513 case 0: /* timed out */ 514 stat = RPC_TIMEDOUT; 515 continue; 516 case -1: /* some kind of error - we ignore it */ 517 goto recv_again; 518 } /* end of poll results switch */ 519 520 for (i = fds_found = 0; 521 i < fdlistno && fds_found < pollretval; i++) { 522 bool_t done = FALSE; 523 524 if (pfd[i].revents == 0) 525 continue; 526 else if (pfd[i].revents & POLLNVAL) { 527 /* 528 * Something bad has happened to this descri- 529 * ptor. We can cause _poll() to ignore 530 * it simply by using a negative fd. We do that 531 * rather than compacting the pfd[] and fdlist[] 532 * arrays. 533 */ 534 pfd[i].fd = -1; 535 fds_found++; 536 continue; 537 } else 538 fds_found++; 539 #ifdef RPC_DEBUG 540 fprintf(stderr, "response for %s\n", 541 fdlist[i].nconf->nc_netid); 542 #endif 543 try_again: 544 inlen = _recvfrom(fdlist[i].fd, inbuf, fdlist[i].dsize, 545 0, (struct sockaddr *)(void *)&fdlist[i].raddr, 546 &fdlist[i].asize); 547 if (inlen < 0) { 548 if (errno == EINTR) 549 goto try_again; 550 warnx("clnt_bcast: Cannot receive reply to " 551 "broadcast"); 552 stat = RPC_CANTRECV; 553 continue; 554 } 555 if (inlen < sizeof (u_int32_t)) 556 continue; /* Drop that and go ahead */ 557 /* 558 * see if reply transaction id matches sent id. 559 * If so, decode the results. If return id is xid + 1 560 * it was a PORTMAP reply 561 */ 562 if (*((u_int32_t *)(void *)(inbuf)) == 563 *((u_int32_t *)(void *)(outbuf))) { 564 pmap_reply_flag = 0; 565 msg.acpted_rply.ar_verf = _null_auth; 566 msg.acpted_rply.ar_results.where = 567 (caddr_t)(void *)&bres; 568 msg.acpted_rply.ar_results.proc = 569 (xdrproc_t)xdr_rpcb_rmtcallres; 570 #ifdef PORTMAP 571 } else if (pmap_flag && 572 *((u_int32_t *)(void *)(inbuf)) == 573 *((u_int32_t *)(void *)(outbuf_pmap))) { 574 pmap_reply_flag = 1; 575 msg.acpted_rply.ar_verf = _null_auth; 576 msg.acpted_rply.ar_results.where = 577 (caddr_t)(void *)&bres_pmap; 578 msg.acpted_rply.ar_results.proc = 579 (xdrproc_t)xdr_rmtcallres; 580 #endif /* PORTMAP */ 581 } else 582 continue; 583 xdrmem_create(xdrs, inbuf, (u_int)inlen, XDR_DECODE); 584 if (xdr_replymsg(xdrs, &msg)) { 585 if ((msg.rm_reply.rp_stat == MSG_ACCEPTED) && 586 (msg.acpted_rply.ar_stat == SUCCESS)) { 587 struct netbuf taddr, *np; 588 struct sockaddr_in *sin; 589 590 #ifdef PORTMAP 591 if (pmap_flag && pmap_reply_flag) { 592 sin = (struct sockaddr_in *) 593 (void *)&fdlist[i].raddr; 594 sin->sin_port = 595 htons((u_short)port); 596 taddr.len = taddr.maxlen = 597 fdlist[i].raddr.ss_len; 598 taddr.buf = &fdlist[i].raddr; 599 done = (*eachresult)(resultsp, 600 &taddr, fdlist[i].nconf); 601 } else { 602 #endif /* PORTMAP */ 603 #ifdef RPC_DEBUG 604 fprintf(stderr, "uaddr %s\n", 605 uaddrp); 606 #endif 607 np = uaddr2taddr( 608 fdlist[i].nconf, uaddrp); 609 done = (*eachresult)(resultsp, 610 np, fdlist[i].nconf); 611 free(np); 612 #ifdef PORTMAP 613 } 614 #endif /* PORTMAP */ 615 } 616 /* otherwise, we just ignore the errors ... */ 617 } 618 /* else some kind of deserialization problem ... */ 619 620 xdrs->x_op = XDR_FREE; 621 msg.acpted_rply.ar_results.proc = (xdrproc_t) xdr_void; 622 (void) xdr_replymsg(xdrs, &msg); 623 (void) (*xresults)(xdrs, resultsp); 624 XDR_DESTROY(xdrs); 625 if (done) { 626 stat = RPC_SUCCESS; 627 goto done_broad; 628 } else { 629 goto recv_again; 630 } 631 } /* The recv for loop */ 632 } /* The giant for loop */ 633 634 done_broad: 635 if (inbuf) 636 (void) free(inbuf); 637 if (outbuf) 638 (void) free(outbuf); 639 #ifdef PORTMAP 640 if (outbuf_pmap) 641 (void) free(outbuf_pmap); 642 #endif /* PORTMAP */ 643 for (i = 0; i < fdlistno; i++) { 644 (void)_close(fdlist[i].fd); 645 __rpc_freebroadifs(&fdlist[i].nal); 646 } 647 AUTH_DESTROY(sys_auth); 648 (void) __rpc_endconf(handle); 649 650 return (stat); 651 } 652 653 654 enum clnt_stat 655 rpc_broadcast(prog, vers, proc, xargs, argsp, xresults, resultsp, 656 eachresult, nettype) 657 rpcprog_t prog; /* program number */ 658 rpcvers_t vers; /* version number */ 659 rpcproc_t proc; /* procedure number */ 660 xdrproc_t xargs; /* xdr routine for args */ 661 caddr_t argsp; /* pointer to args */ 662 xdrproc_t xresults; /* xdr routine for results */ 663 caddr_t resultsp; /* pointer to results */ 664 resultproc_t eachresult; /* call with each result obtained */ 665 const char *nettype; /* transport type */ 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