clnt_bcast.c revision 1.11
1 /* $NetBSD: clnt_bcast.c,v 1.11 2003/09/09 00:22:17 itojun 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 /* #ident "@(#)clnt_bcast.c 1.18 94/05/03 SMI" */ 36 37 #if 0 38 #if !defined(lint) && defined(SCCSIDS) 39 static char sccsid[] = "@(#)clnt_bcast.c 1.15 89/04/21 Copyr 1988 Sun Micro"; 40 #endif 41 #endif 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 68 #include <rpc/nettype.h> 69 #include <arpa/inet.h> 70 #ifdef RPC_DEBUG 71 #include <stdio.h> 72 #endif 73 #include <assert.h> 74 #include <errno.h> 75 #include <stdlib.h> 76 #include <unistd.h> 77 #include <netdb.h> 78 #include <err.h> 79 #include <string.h> 80 81 #include "rpc_internal.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 #ifdef __weak_alias 111 __weak_alias(rpc_broadcast_exp,_rpc_broadcast_exp) 112 __weak_alias(rpc_broadcast,_rpc_broadcast) 113 #endif 114 115 struct broadif { 116 int index; 117 struct sockaddr_storage broadaddr; 118 TAILQ_ENTRY(broadif) link; 119 }; 120 121 typedef TAILQ_HEAD(, broadif) broadlist_t; 122 123 int __rpc_getbroadifs __P((int, int, int, broadlist_t *)); 124 void __rpc_freebroadifs __P((broadlist_t *)); 125 int __rpc_broadenable __P((int, int, struct broadif *)); 126 127 int __rpc_lowvers = 0; 128 129 int 130 __rpc_getbroadifs(int af, int proto, int socktype, broadlist_t *list) 131 { 132 int count = 0; 133 struct broadif *bip; 134 struct ifaddrs *ifap, *ifp; 135 #ifdef INET6 136 struct sockaddr_in6 *sin6; 137 #endif 138 struct sockaddr_in *gbsin; 139 struct addrinfo hints, *res; 140 141 _DIAGASSERT(list != NULL); 142 143 if (getifaddrs(&ifp) < 0) 144 return 0; 145 146 memset(&hints, 0, sizeof hints); 147 148 hints.ai_family = af; 149 hints.ai_protocol = proto; 150 hints.ai_socktype = socktype; 151 152 if (getaddrinfo(NULL, "sunrpc", &hints, &res) != 0) 153 return 0; 154 155 for (ifap = ifp; ifap != NULL; ifap = ifap->ifa_next) { 156 if (ifap->ifa_addr->sa_family != af || 157 !(ifap->ifa_flags & IFF_UP)) 158 continue; 159 bip = (struct broadif *)malloc(sizeof *bip); 160 if (bip == NULL) 161 break; 162 bip->index = if_nametoindex(ifap->ifa_name); 163 if ( 164 #ifdef INET6 165 af != AF_INET6 && 166 #endif 167 (ifap->ifa_flags & IFF_BROADCAST) && 168 ifap->ifa_broadaddr) { 169 memcpy(&bip->broadaddr, ifap->ifa_broadaddr, 170 (size_t)ifap->ifa_broadaddr->sa_len); 171 gbsin = (struct sockaddr_in *)(void *)&bip->broadaddr; 172 gbsin->sin_port = 173 ((struct sockaddr_in *) 174 (void *)res->ai_addr)->sin_port; 175 } else 176 #ifdef INET6 177 if (af == AF_INET6 && (ifap->ifa_flags & IFF_MULTICAST)) { 178 sin6 = (struct sockaddr_in6 *)(void *)&bip->broadaddr; 179 inet_pton(af, RPCB_MULTICAST_ADDR, &sin6->sin6_addr); 180 sin6->sin6_family = af; 181 sin6->sin6_len = sizeof *sin6; 182 sin6->sin6_port = 183 ((struct sockaddr_in6 *) 184 (void *)res->ai_addr)->sin6_port; 185 sin6->sin6_scope_id = bip->index; 186 } else 187 #endif 188 { 189 free(bip); 190 continue; 191 } 192 TAILQ_INSERT_TAIL(list, bip, link); 193 count++; 194 } 195 freeifaddrs(ifp); 196 freeaddrinfo(res); 197 198 return count; 199 } 200 201 void 202 __rpc_freebroadifs(broadlist_t *list) 203 { 204 struct broadif *bip, *next; 205 206 _DIAGASSERT(list != NULL); 207 208 bip = TAILQ_FIRST(list); 209 210 while (bip != NULL) { 211 next = TAILQ_NEXT(bip, link); 212 free(bip); 213 bip = next; 214 } 215 } 216 217 int 218 /*ARGSUSED*/ 219 __rpc_broadenable(int af, int s, struct broadif *bip) 220 { 221 int o = 1; 222 223 #if 0 224 _DIAGASSERT(bip != NULL); 225 226 if (af == AF_INET6) { 227 fprintf(stderr, "set v6 multicast if to %d\n", bip->index); 228 if (setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_IF, &bip->index, 229 sizeof bip->index) < 0) 230 return -1; 231 } else 232 #endif 233 if (setsockopt(s, SOL_SOCKET, SO_BROADCAST, &o, sizeof o) < 0) 234 return -1; 235 236 return 0; 237 } 238 239 240 enum clnt_stat 241 rpc_broadcast_exp(prog, vers, proc, xargs, argsp, xresults, resultsp, 242 eachresult, inittime, waittime, nettype) 243 rpcprog_t prog; /* program number */ 244 rpcvers_t vers; /* version number */ 245 rpcproc_t proc; /* procedure number */ 246 xdrproc_t xargs; /* xdr routine for args */ 247 caddr_t argsp; /* pointer to args */ 248 xdrproc_t xresults; /* xdr routine for results */ 249 caddr_t resultsp; /* pointer to results */ 250 resultproc_t eachresult; /* call with each result obtained */ 251 int inittime; /* how long to wait initially */ 252 int waittime; /* maximum time to wait */ 253 const char *nettype; /* transport type */ 254 { 255 enum clnt_stat stat = RPC_SUCCESS; /* Return status */ 256 XDR xdr_stream; /* XDR stream */ 257 XDR *xdrs = &xdr_stream; 258 struct rpc_msg msg; /* RPC message */ 259 char *outbuf = NULL; /* Broadcast msg buffer */ 260 char *inbuf = NULL; /* Reply buf */ 261 int inlen; 262 u_int maxbufsize = 0; 263 AUTH *sys_auth = authunix_create_default(); 264 int i; 265 void *handle; 266 char uaddress[1024]; /* A self imposed limit */ 267 char *uaddrp = uaddress; 268 int pmap_reply_flag; /* reply recvd from PORTMAP */ 269 /* An array of all the suitable broadcast transports */ 270 struct { 271 int fd; /* File descriptor */ 272 int af; 273 int proto; 274 struct netconfig *nconf; /* Netconfig structure */ 275 u_int asize; /* Size of the addr buf */ 276 u_int dsize; /* Size of the data buf */ 277 struct sockaddr_storage raddr; /* Remote address */ 278 broadlist_t nal; 279 } fdlist[MAXBCAST]; 280 struct pollfd pfd[MAXBCAST]; 281 size_t fdlistno = 0; 282 struct r_rpcb_rmtcallargs barg; /* Remote arguments */ 283 struct r_rpcb_rmtcallres bres; /* Remote results */ 284 size_t outlen; 285 struct netconfig *nconf; 286 int msec; 287 int pollretval; 288 int fds_found; 289 290 #ifdef PORTMAP 291 size_t outlen_pmap; 292 u_long port; /* Remote port number */ 293 int pmap_flag = 0; /* UDP exists ? */ 294 char *outbuf_pmap = NULL; 295 struct rmtcallargs barg_pmap; /* Remote arguments */ 296 struct rmtcallres bres_pmap; /* Remote results */ 297 u_int udpbufsz = 0; 298 #endif /* PORTMAP */ 299 300 if (sys_auth == NULL) { 301 return (RPC_SYSTEMERROR); 302 } 303 /* 304 * initialization: create a fd, a broadcast address, and send the 305 * request on the broadcast transport. 306 * Listen on all of them and on replies, call the user supplied 307 * function. 308 */ 309 310 if (nettype == NULL) 311 nettype = "datagram_n"; 312 if ((handle = __rpc_setconf(nettype)) == NULL) { 313 return (RPC_UNKNOWNPROTO); 314 } 315 while ((nconf = __rpc_getconf(handle)) != NULL) { 316 int fd; 317 struct __rpc_sockinfo si; 318 319 if (nconf->nc_semantics != NC_TPI_CLTS) 320 continue; 321 if (fdlistno >= MAXBCAST) 322 break; /* No more slots available */ 323 if (!__rpc_nconf2sockinfo(nconf, &si)) 324 continue; 325 326 TAILQ_INIT(&fdlist[fdlistno].nal); 327 if (__rpc_getbroadifs(si.si_af, si.si_proto, si.si_socktype, 328 &fdlist[fdlistno].nal) == 0) 329 continue; 330 331 fd = socket(si.si_af, si.si_socktype, si.si_proto); 332 if (fd < 0) { 333 stat = RPC_CANTSEND; 334 continue; 335 } 336 fdlist[fdlistno].af = si.si_af; 337 fdlist[fdlistno].proto = si.si_proto; 338 fdlist[fdlistno].fd = fd; 339 fdlist[fdlistno].nconf = nconf; 340 fdlist[fdlistno].asize = __rpc_get_a_size(si.si_af); 341 pfd[fdlistno].events = POLLIN | POLLPRI | 342 POLLRDNORM | POLLRDBAND; 343 pfd[fdlistno].fd = fdlist[fdlistno].fd = fd; 344 fdlist[fdlistno].dsize = __rpc_get_t_size(si.si_af, si.si_proto, 345 0); 346 347 if (maxbufsize <= fdlist[fdlistno].dsize) 348 maxbufsize = fdlist[fdlistno].dsize; 349 350 #ifdef PORTMAP 351 if (si.si_af == AF_INET && si.si_proto == IPPROTO_UDP) { 352 udpbufsz = fdlist[fdlistno].dsize; 353 if ((outbuf_pmap = malloc(udpbufsz)) == NULL) { 354 close(fd); 355 stat = RPC_SYSTEMERROR; 356 goto done_broad; 357 } 358 pmap_flag = 1; 359 } 360 #endif 361 fdlistno++; 362 } 363 364 if (fdlistno == 0) { 365 if (stat == RPC_SUCCESS) 366 stat = RPC_UNKNOWNPROTO; 367 goto done_broad; 368 } 369 if (maxbufsize == 0) { 370 if (stat == RPC_SUCCESS) 371 stat = RPC_CANTSEND; 372 goto done_broad; 373 } 374 inbuf = malloc(maxbufsize); 375 outbuf = malloc(maxbufsize); 376 if ((inbuf == NULL) || (outbuf == NULL)) { 377 stat = RPC_SYSTEMERROR; 378 goto done_broad; 379 } 380 381 /* Serialize all the arguments which have to be sent */ 382 msg.rm_xid = __RPC_GETXID(); 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 && fdlist[i].proto == IPPROTO_UDP) { 488 if (sendto(fdlist[i].fd, outbuf_pmap, 489 outlen_pmap, 0, addr, 490 (size_t)fdlist[i].asize) != 491 outlen_pmap) { 492 warnx("clnt_bcast: " 493 "Cannot send broadcast packet"); 494 stat = RPC_CANTSEND; 495 continue; 496 } 497 } 498 #ifdef RPC_DEBUG 499 fprintf(stderr, "PMAP Broadcast packet " 500 "sent for %s\n", 501 fdlist[i].nconf->nc_netid); 502 #endif 503 #endif /* PORTMAP */ 504 } 505 /* End for sending all packets on this transport */ 506 } /* End for sending on all transports */ 507 508 if (eachresult == NULL) { 509 stat = RPC_SUCCESS; 510 goto done_broad; 511 } 512 513 /* 514 * Get all the replies from these broadcast requests 515 */ 516 recv_again: 517 518 switch (pollretval = poll(pfd, fdlistno, msec)) { 519 case 0: /* timed out */ 520 stat = RPC_TIMEDOUT; 521 continue; 522 case -1: /* some kind of error - we ignore it */ 523 goto recv_again; 524 } /* end of poll results switch */ 525 526 for (i = fds_found = 0; 527 i < fdlistno && fds_found < pollretval; i++) { 528 bool_t done = FALSE; 529 530 if (pfd[i].revents == 0) 531 continue; 532 else if (pfd[i].revents & POLLNVAL) { 533 /* 534 * Something bad has happened to this descri- 535 * ptor. We can cause poll() to ignore 536 * it simply by using a negative fd. We do that 537 * rather than compacting the pfd[] and fdlist[] 538 * arrays. 539 */ 540 pfd[i].fd = -1; 541 fds_found++; 542 continue; 543 } else 544 fds_found++; 545 #ifdef RPC_DEBUG 546 fprintf(stderr, "response for %s\n", 547 fdlist[i].nconf->nc_netid); 548 #endif 549 try_again: 550 inlen = recvfrom(fdlist[i].fd, inbuf, fdlist[i].dsize, 551 0, (struct sockaddr *)(void *)&fdlist[i].raddr, 552 &fdlist[i].asize); 553 if (inlen < 0) { 554 if (errno == EINTR) 555 goto try_again; 556 warnx("clnt_bcast: Cannot receive reply to " 557 "broadcast"); 558 stat = RPC_CANTRECV; 559 continue; 560 } 561 if (inlen < sizeof (u_int32_t)) 562 continue; /* Drop that and go ahead */ 563 /* 564 * see if reply transaction id matches sent id. 565 * If so, decode the results. If return id is xid + 1 566 * it was a PORTMAP reply 567 */ 568 if (*((u_int32_t *)(void *)(inbuf)) == 569 *((u_int32_t *)(void *)(outbuf))) { 570 pmap_reply_flag = 0; 571 msg.acpted_rply.ar_verf = _null_auth; 572 msg.acpted_rply.ar_results.where = 573 (caddr_t)(void *)&bres; 574 msg.acpted_rply.ar_results.proc = 575 (xdrproc_t)xdr_rpcb_rmtcallres; 576 #ifdef PORTMAP 577 } else if (pmap_flag && 578 *((u_int32_t *)(void *)(inbuf)) == 579 *((u_int32_t *)(void *)(outbuf_pmap))) { 580 pmap_reply_flag = 1; 581 msg.acpted_rply.ar_verf = _null_auth; 582 msg.acpted_rply.ar_results.where = 583 (caddr_t)(void *)&bres_pmap; 584 msg.acpted_rply.ar_results.proc = 585 (xdrproc_t)xdr_rmtcallres; 586 #endif /* PORTMAP */ 587 } else 588 continue; 589 xdrmem_create(xdrs, inbuf, (u_int)inlen, XDR_DECODE); 590 if (xdr_replymsg(xdrs, &msg)) { 591 if ((msg.rm_reply.rp_stat == MSG_ACCEPTED) && 592 (msg.acpted_rply.ar_stat == SUCCESS)) { 593 struct netbuf taddr, *np; 594 struct sockaddr_in *bsin; 595 596 #ifdef PORTMAP 597 if (pmap_flag && pmap_reply_flag) { 598 bsin = (struct sockaddr_in *) 599 (void *)&fdlist[i].raddr; 600 bsin->sin_port = 601 htons((u_short)port); 602 taddr.len = taddr.maxlen = 603 fdlist[i].raddr.ss_len; 604 taddr.buf = &fdlist[i].raddr; 605 done = (*eachresult)(resultsp, 606 &taddr, fdlist[i].nconf); 607 } else { 608 #endif 609 #ifdef RPC_DEBUG 610 fprintf(stderr, "uaddr %s\n", 611 uaddrp); 612 #endif 613 np = uaddr2taddr( 614 fdlist[i].nconf, uaddrp); 615 done = (*eachresult)(resultsp, 616 np, fdlist[i].nconf); 617 free(np); 618 #ifdef PORTMAP 619 } 620 #endif 621 } 622 /* otherwise, we just ignore the errors ... */ 623 } 624 /* else some kind of deserialization problem ... */ 625 626 xdrs->x_op = XDR_FREE; 627 msg.acpted_rply.ar_results.proc = (xdrproc_t) xdr_void; 628 (void) xdr_replymsg(xdrs, &msg); 629 (void) (*xresults)(xdrs, resultsp); 630 XDR_DESTROY(xdrs); 631 if (done) { 632 stat = RPC_SUCCESS; 633 goto done_broad; 634 } else { 635 goto recv_again; 636 } 637 } /* The recv for loop */ 638 } /* The giant for loop */ 639 640 done_broad: 641 if (inbuf) 642 (void) free(inbuf); 643 if (outbuf) 644 (void) free(outbuf); 645 #ifdef PORTMAP 646 if (outbuf_pmap) 647 (void) free(outbuf_pmap); 648 #endif 649 for (i = 0; i < fdlistno; i++) { 650 (void) close(fdlist[i].fd); 651 __rpc_freebroadifs(&fdlist[i].nal); 652 } 653 AUTH_DESTROY(sys_auth); 654 (void) __rpc_endconf(handle); 655 656 return (stat); 657 } 658 659 660 enum clnt_stat 661 rpc_broadcast(prog, vers, proc, xargs, argsp, xresults, resultsp, 662 eachresult, nettype) 663 rpcprog_t prog; /* program number */ 664 rpcvers_t vers; /* version number */ 665 rpcproc_t proc; /* procedure number */ 666 xdrproc_t xargs; /* xdr routine for args */ 667 caddr_t argsp; /* pointer to args */ 668 xdrproc_t xresults; /* xdr routine for results */ 669 caddr_t resultsp; /* pointer to results */ 670 resultproc_t eachresult; /* call with each result obtained */ 671 const char *nettype; /* transport type */ 672 { 673 enum clnt_stat dummy; 674 675 dummy = rpc_broadcast_exp(prog, vers, proc, xargs, argsp, 676 xresults, resultsp, eachresult, 677 INITTIME, WAITTIME, nettype); 678 return (dummy); 679 } 680
Indexes created Tue Sep 23 20:09:58 GMT 2025