clnt_bcast.c revision 1.17
1 /* $NetBSD: clnt_bcast.c,v 1.17 2006/05/18 20:42:52 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 /* #ident "@(#)clnt_bcast.c 1.18 94/05/03 SMI" */ 36 37 #include <sys/cdefs.h> 38 #if defined(LIBC_SCCS) && !defined(lint) 39 #if 0 40 static char sccsid[] = "@(#)clnt_bcast.c 1.15 89/04/21 Copyr 1988 Sun Micro"; 41 #else 42 __RCSID("$NetBSD: clnt_bcast.c,v 1.17 2006/05/18 20:42:52 christos Exp $"); 43 #endif 44 #endif 45 46 /* 47 * clnt_bcast.c 48 * Client interface to broadcast service. 49 * 50 * Copyright (C) 1988, Sun Microsystems, Inc. 51 * 52 * The following is kludged-up support for simple rpc broadcasts. 53 * Someday a large, complicated system will replace these routines. 54 */ 55 56 #include "namespace.h" 57 #include <sys/types.h> 58 #include <sys/socket.h> 59 #include <sys/queue.h> 60 #include <net/if.h> 61 #include <netinet/in.h> 62 #include <ifaddrs.h> 63 #include <sys/poll.h> 64 #include <rpc/rpc.h> 65 #ifdef PORTMAP 66 #include <rpc/pmap_prot.h> 67 #include <rpc/pmap_clnt.h> 68 #include <rpc/pmap_rmt.h> 69 #endif 70 #include <rpc/nettype.h> 71 #include <arpa/inet.h> 72 #ifdef RPC_DEBUG 73 #include <stdio.h> 74 #endif 75 #include <assert.h> 76 #include <errno.h> 77 #include <stdlib.h> 78 #include <unistd.h> 79 #include <netdb.h> 80 #include <err.h> 81 #include <string.h> 82 83 #include "rpc_internal.h" 84 85 #define MAXBCAST 20 /* Max no of broadcasting transports */ 86 #define INITTIME 4000 /* Time to wait initially */ 87 #define WAITTIME 8000 /* Maximum time to wait */ 88 89 /* 90 * If nettype is NULL, it broadcasts on all the available 91 * datagram_n transports. May potentially lead to broadacst storms 92 * and hence should be used with caution, care and courage. 93 * 94 * The current parameter xdr packet size is limited by the max tsdu 95 * size of the transport. If the max tsdu size of any transport is 96 * smaller than the parameter xdr packet, then broadcast is not 97 * sent on that transport. 98 * 99 * Also, the packet size should be less the packet size of 100 * the data link layer (for ethernet it is 1400 bytes). There is 101 * no easy way to find out the max size of the data link layer and 102 * we are assuming that the args would be smaller than that. 103 * 104 * The result size has to be smaller than the transport tsdu size. 105 * 106 * If PORTMAP has been defined, we send two packets for UDP, one for 107 * rpcbind and one for portmap. For those machines which support 108 * both rpcbind and portmap, it will cause them to reply twice, and 109 * also here it will get two responses ... inefficient and clumsy. 110 */ 111 112 #ifdef __weak_alias 113 __weak_alias(rpc_broadcast_exp,_rpc_broadcast_exp) 114 __weak_alias(rpc_broadcast,_rpc_broadcast) 115 #endif 116 117 struct broadif { 118 int index; 119 struct sockaddr_storage broadaddr; 120 TAILQ_ENTRY(broadif) link; 121 }; 122 123 typedef TAILQ_HEAD(, broadif) broadlist_t; 124 125 int __rpc_getbroadifs __P((int, int, int, broadlist_t *)); 126 void __rpc_freebroadifs __P((broadlist_t *)); 127 int __rpc_broadenable __P((int, int, struct broadif *)); 128 129 int __rpc_lowvers = 0; 130 131 int 132 __rpc_getbroadifs(int af, int proto, int socktype, broadlist_t *list) 133 { 134 int count = 0; 135 struct broadif *bip; 136 struct ifaddrs *ifap, *ifp; 137 #ifdef INET6 138 struct sockaddr_in6 *sin6; 139 #endif 140 struct sockaddr_in *gbsin; 141 struct addrinfo hints, *res; 142 143 _DIAGASSERT(list != NULL); 144 145 if (getifaddrs(&ifp) < 0) 146 return 0; 147 148 memset(&hints, 0, sizeof hints); 149 150 hints.ai_family = af; 151 hints.ai_protocol = proto; 152 hints.ai_socktype = socktype; 153 154 if (getaddrinfo(NULL, "sunrpc", &hints, &res) != 0) { 155 freeifaddrs(ifp); 156 return 0; 157 } 158 159 for (ifap = ifp; ifap != NULL; ifap = ifap->ifa_next) { 160 if (ifap->ifa_addr->sa_family != af || 161 !(ifap->ifa_flags & IFF_UP)) 162 continue; 163 bip = (struct broadif *)malloc(sizeof *bip); 164 if (bip == NULL) 165 break; 166 bip->index = if_nametoindex(ifap->ifa_name); 167 if ( 168 #ifdef INET6 169 af != AF_INET6 && 170 #endif 171 (ifap->ifa_flags & IFF_BROADCAST) && 172 ifap->ifa_broadaddr) { 173 memcpy(&bip->broadaddr, ifap->ifa_broadaddr, 174 (size_t)ifap->ifa_broadaddr->sa_len); 175 gbsin = (struct sockaddr_in *)(void *)&bip->broadaddr; 176 gbsin->sin_port = 177 ((struct sockaddr_in *) 178 (void *)res->ai_addr)->sin_port; 179 } else 180 #ifdef INET6 181 if (af == AF_INET6 && (ifap->ifa_flags & IFF_MULTICAST)) { 182 sin6 = (struct sockaddr_in6 *)(void *)&bip->broadaddr; 183 inet_pton(af, RPCB_MULTICAST_ADDR, &sin6->sin6_addr); 184 sin6->sin6_family = af; 185 sin6->sin6_len = sizeof *sin6; 186 sin6->sin6_port = 187 ((struct sockaddr_in6 *) 188 (void *)res->ai_addr)->sin6_port; 189 sin6->sin6_scope_id = bip->index; 190 } else 191 #endif 192 { 193 free(bip); 194 continue; 195 } 196 TAILQ_INSERT_TAIL(list, bip, link); 197 count++; 198 } 199 freeifaddrs(ifp); 200 freeaddrinfo(res); 201 202 return count; 203 } 204 205 void 206 __rpc_freebroadifs(broadlist_t *list) 207 { 208 struct broadif *bip, *next; 209 210 _DIAGASSERT(list != NULL); 211 212 bip = TAILQ_FIRST(list); 213 214 while (bip != NULL) { 215 next = TAILQ_NEXT(bip, link); 216 free(bip); 217 bip = next; 218 } 219 } 220 221 int 222 /*ARGSUSED*/ 223 __rpc_broadenable(int af, int s, struct broadif *bip) 224 { 225 int o = 1; 226 227 #if 0 228 _DIAGASSERT(bip != NULL); 229 230 if (af == AF_INET6) { 231 fprintf(stderr, "set v6 multicast if to %d\n", bip->index); 232 if (setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_IF, &bip->index, 233 sizeof bip->index) < 0) 234 return -1; 235 } else 236 #endif 237 if (setsockopt(s, SOL_SOCKET, SO_BROADCAST, &o, sizeof o) < 0) 238 return -1; 239 240 return 0; 241 } 242 243 244 enum clnt_stat 245 rpc_broadcast_exp(prog, vers, proc, xargs, argsp, xresults, resultsp, 246 eachresult, inittime, waittime, nettype) 247 rpcprog_t prog; /* program number */ 248 rpcvers_t vers; /* version number */ 249 rpcproc_t proc; /* procedure number */ 250 xdrproc_t xargs; /* xdr routine for args */ 251 const char * argsp; /* pointer to args */ 252 xdrproc_t xresults; /* xdr routine for results */ 253 caddr_t resultsp; /* pointer to results */ 254 resultproc_t eachresult; /* call with each result obtained */ 255 int inittime; /* how long to wait initially */ 256 int waittime; /* maximum time to wait */ 257 const char *nettype; /* transport type */ 258 { 259 enum clnt_stat stat = RPC_SUCCESS; /* Return status */ 260 XDR xdr_stream; /* XDR stream */ 261 XDR *xdrs = &xdr_stream; 262 struct rpc_msg msg; /* RPC message */ 263 char *outbuf = NULL; /* Broadcast msg buffer */ 264 char *inbuf = NULL; /* Reply buf */ 265 int inlen; 266 u_int maxbufsize = 0; 267 AUTH *sys_auth = authunix_create_default(); 268 int i; 269 void *handle; 270 char uaddress[1024]; /* A self imposed limit */ 271 char *uaddrp = uaddress; 272 int pmap_reply_flag; /* reply recvd from PORTMAP */ 273 /* An array of all the suitable broadcast transports */ 274 struct { 275 int fd; /* File descriptor */ 276 int af; 277 int proto; 278 struct netconfig *nconf; /* Netconfig structure */ 279 u_int asize; /* Size of the addr buf */ 280 u_int dsize; /* Size of the data buf */ 281 struct sockaddr_storage raddr; /* Remote address */ 282 broadlist_t nal; 283 } fdlist[MAXBCAST]; 284 struct pollfd pfd[MAXBCAST]; 285 size_t fdlistno = 0; 286 struct r_rpcb_rmtcallargs barg; /* Remote arguments */ 287 struct r_rpcb_rmtcallres bres; /* Remote results */ 288 size_t outlen; 289 struct netconfig *nconf; 290 int msec; 291 int pollretval; 292 int fds_found; 293 struct timespec ts; 294 295 #ifdef PORTMAP 296 size_t outlen_pmap = 0; 297 u_long port; /* Remote port number */ 298 int pmap_flag = 0; /* UDP exists ? */ 299 char *outbuf_pmap = NULL; 300 struct rmtcallargs barg_pmap; /* Remote arguments */ 301 struct rmtcallres bres_pmap; /* Remote results */ 302 u_int udpbufsz = 0; 303 #endif /* PORTMAP */ 304 305 if (sys_auth == NULL) { 306 return (RPC_SYSTEMERROR); 307 } 308 /* 309 * initialization: create a fd, a broadcast address, and send the 310 * request on the broadcast transport. 311 * Listen on all of them and on replies, call the user supplied 312 * function. 313 */ 314 315 if (nettype == NULL) 316 nettype = "datagram_n"; 317 if ((handle = __rpc_setconf(nettype)) == NULL) { 318 AUTH_DESTROY(sys_auth); 319 return (RPC_UNKNOWNPROTO); 320 } 321 while ((nconf = __rpc_getconf(handle)) != NULL) { 322 int fd; 323 struct __rpc_sockinfo si; 324 325 if (nconf->nc_semantics != NC_TPI_CLTS) 326 continue; 327 if (fdlistno >= MAXBCAST) 328 break; /* No more slots available */ 329 if (!__rpc_nconf2sockinfo(nconf, &si)) 330 continue; 331 332 TAILQ_INIT(&fdlist[fdlistno].nal); 333 if (__rpc_getbroadifs(si.si_af, si.si_proto, si.si_socktype, 334 &fdlist[fdlistno].nal) == 0) 335 continue; 336 337 fd = socket(si.si_af, si.si_socktype, si.si_proto); 338 if (fd < 0) { 339 stat = RPC_CANTSEND; 340 continue; 341 } 342 fdlist[fdlistno].af = si.si_af; 343 fdlist[fdlistno].proto = si.si_proto; 344 fdlist[fdlistno].fd = fd; 345 fdlist[fdlistno].nconf = nconf; 346 fdlist[fdlistno].asize = __rpc_get_a_size(si.si_af); 347 pfd[fdlistno].events = POLLIN | POLLPRI | 348 POLLRDNORM | POLLRDBAND; 349 pfd[fdlistno].fd = fdlist[fdlistno].fd = fd; 350 fdlist[fdlistno].dsize = __rpc_get_t_size(si.si_af, si.si_proto, 351 0); 352 353 if (maxbufsize <= fdlist[fdlistno].dsize) 354 maxbufsize = fdlist[fdlistno].dsize; 355 356 #ifdef PORTMAP 357 if (si.si_af == AF_INET && si.si_proto == IPPROTO_UDP) { 358 udpbufsz = fdlist[fdlistno].dsize; 359 if ((outbuf_pmap = malloc(udpbufsz)) == NULL) { 360 close(fd); 361 stat = RPC_SYSTEMERROR; 362 goto done_broad; 363 } 364 pmap_flag = 1; 365 } 366 #endif 367 fdlistno++; 368 } 369 370 if (fdlistno == 0) { 371 if (stat == RPC_SUCCESS) 372 stat = RPC_UNKNOWNPROTO; 373 goto done_broad; 374 } 375 if (maxbufsize == 0) { 376 if (stat == RPC_SUCCESS) 377 stat = RPC_CANTSEND; 378 goto done_broad; 379 } 380 inbuf = malloc(maxbufsize); 381 outbuf = malloc(maxbufsize); 382 if ((inbuf == NULL) || (outbuf == NULL)) { 383 stat = RPC_SYSTEMERROR; 384 goto done_broad; 385 } 386 387 /* Serialize all the arguments which have to be sent */ 388 msg.rm_xid = __RPC_GETXID(); 389 msg.rm_direction = CALL; 390 msg.rm_call.cb_rpcvers = RPC_MSG_VERSION; 391 msg.rm_call.cb_prog = RPCBPROG; 392 msg.rm_call.cb_vers = RPCBVERS; 393 msg.rm_call.cb_proc = RPCBPROC_CALLIT; 394 barg.prog = prog; 395 barg.vers = vers; 396 barg.proc = proc; 397 barg.args.args_val = argsp; 398 barg.xdr_args = xargs; 399 bres.addr = uaddrp; 400 bres.results.results_val = resultsp; 401 bres.xdr_res = xresults; 402 msg.rm_call.cb_cred = sys_auth->ah_cred; 403 msg.rm_call.cb_verf = sys_auth->ah_verf; 404 xdrmem_create(xdrs, outbuf, maxbufsize, XDR_ENCODE); 405 if ((!xdr_callmsg(xdrs, &msg)) || 406 (!xdr_rpcb_rmtcallargs(xdrs, 407 (struct rpcb_rmtcallargs *)(void *)&barg))) { 408 stat = RPC_CANTENCODEARGS; 409 goto done_broad; 410 } 411 outlen = xdr_getpos(xdrs); 412 xdr_destroy(xdrs); 413 414 #ifdef PORTMAP 415 /* Prepare the packet for version 2 PORTMAP */ 416 if (pmap_flag) { 417 msg.rm_xid++; /* One way to distinguish */ 418 msg.rm_call.cb_prog = PMAPPROG; 419 msg.rm_call.cb_vers = PMAPVERS; 420 msg.rm_call.cb_proc = PMAPPROC_CALLIT; 421 barg_pmap.prog = prog; 422 barg_pmap.vers = vers; 423 barg_pmap.proc = proc; 424 barg_pmap.args_ptr = argsp; 425 barg_pmap.xdr_args = xargs; 426 bres_pmap.port_ptr = &port; 427 bres_pmap.xdr_results = xresults; 428 bres_pmap.results_ptr = resultsp; 429 xdrmem_create(xdrs, outbuf_pmap, udpbufsz, XDR_ENCODE); 430 if ((! xdr_callmsg(xdrs, &msg)) || 431 (! xdr_rmtcall_args(xdrs, &barg_pmap))) { 432 stat = RPC_CANTENCODEARGS; 433 goto done_broad; 434 } 435 outlen_pmap = xdr_getpos(xdrs); 436 xdr_destroy(xdrs); 437 } 438 #endif /* PORTMAP */ 439 440 /* 441 * Basic loop: broadcast the packets to transports which 442 * support data packets of size such that one can encode 443 * all the arguments. 444 * Wait a while for response(s). 445 * The response timeout grows larger per iteration. 446 */ 447 for (msec = inittime; msec <= waittime; msec += msec) { 448 struct broadif *bip; 449 450 /* Broadcast all the packets now */ 451 for (i = 0; i < fdlistno; i++) { 452 if (fdlist[i].dsize < outlen) { 453 stat = RPC_CANTSEND; 454 continue; 455 } 456 for (bip = TAILQ_FIRST(&fdlist[i].nal); bip != NULL; 457 bip = TAILQ_NEXT(bip, link)) { 458 void *addr; 459 460 addr = &bip->broadaddr; 461 462 __rpc_broadenable(fdlist[i].af, fdlist[i].fd, 463 bip); 464 465 /* 466 * Only use version 3 if lowvers is not set 467 */ 468 469 if (!__rpc_lowvers) 470 if (sendto(fdlist[i].fd, outbuf, 471 outlen, 0, (struct sockaddr*)addr, 472 (size_t)fdlist[i].asize) != 473 outlen) { 474 #ifdef RPC_DEBUG 475 perror("sendto"); 476 #endif 477 warnx("clnt_bcast: cannot send" 478 " broadcast packet"); 479 stat = RPC_CANTSEND; 480 continue; 481 }; 482 #ifdef RPC_DEBUG 483 if (!__rpc_lowvers) 484 fprintf(stderr, "Broadcast packet sent " 485 "for %s\n", 486 fdlist[i].nconf->nc_netid); 487 #endif 488 #ifdef PORTMAP 489 /* 490 * Send the version 2 packet also 491 * for UDP/IP 492 */ 493 if (pmap_flag && fdlist[i].proto == IPPROTO_UDP) { 494 if (sendto(fdlist[i].fd, outbuf_pmap, 495 outlen_pmap, 0, addr, 496 (size_t)fdlist[i].asize) != 497 outlen_pmap) { 498 warnx("clnt_bcast: " 499 "Cannot send broadcast packet"); 500 stat = RPC_CANTSEND; 501 continue; 502 } 503 } 504 #ifdef RPC_DEBUG 505 fprintf(stderr, "PMAP Broadcast packet " 506 "sent for %s\n", 507 fdlist[i].nconf->nc_netid); 508 #endif 509 #endif /* PORTMAP */ 510 } 511 /* End for sending all packets on this transport */ 512 } /* End for sending on all transports */ 513 514 if (eachresult == NULL) { 515 stat = RPC_SUCCESS; 516 goto done_broad; 517 } 518 519 /* 520 * Get all the replies from these broadcast requests 521 */ 522 recv_again: 523 ts.tv_sec = msec / 1000; 524 ts.tv_nsec = (msec % 1000) * 1000000; 525 526 switch (pollretval = pollts(pfd, fdlistno, &ts, NULL)) { 527 case 0: /* timed out */ 528 stat = RPC_TIMEDOUT; 529 continue; 530 case -1: /* some kind of error - we ignore it */ 531 goto recv_again; 532 } /* end of poll results switch */ 533 534 for (i = fds_found = 0; 535 i < fdlistno && fds_found < pollretval; i++) { 536 bool_t done = FALSE; 537 538 if (pfd[i].revents == 0) 539 continue; 540 else if (pfd[i].revents & POLLNVAL) { 541 /* 542 * Something bad has happened to this descri- 543 * ptor. We can cause pollts() to ignore 544 * it simply by using a negative fd. We do that 545 * rather than compacting the pfd[] and fdlist[] 546 * arrays. 547 */ 548 pfd[i].fd = -1; 549 fds_found++; 550 continue; 551 } else 552 fds_found++; 553 #ifdef RPC_DEBUG 554 fprintf(stderr, "response for %s\n", 555 fdlist[i].nconf->nc_netid); 556 #endif 557 try_again: 558 inlen = recvfrom(fdlist[i].fd, inbuf, fdlist[i].dsize, 559 0, (struct sockaddr *)(void *)&fdlist[i].raddr, 560 &fdlist[i].asize); 561 if (inlen < 0) { 562 if (errno == EINTR) 563 goto try_again; 564 warnx("clnt_bcast: Cannot receive reply to " 565 "broadcast"); 566 stat = RPC_CANTRECV; 567 continue; 568 } 569 if (inlen < sizeof (u_int32_t)) 570 continue; /* Drop that and go ahead */ 571 /* 572 * see if reply transaction id matches sent id. 573 * If so, decode the results. If return id is xid + 1 574 * it was a PORTMAP reply 575 */ 576 if (*((u_int32_t *)(void *)(inbuf)) == 577 *((u_int32_t *)(void *)(outbuf))) { 578 pmap_reply_flag = 0; 579 msg.acpted_rply.ar_verf = _null_auth; 580 msg.acpted_rply.ar_results.where = 581 (caddr_t)(void *)&bres; 582 msg.acpted_rply.ar_results.proc = 583 (xdrproc_t)xdr_rpcb_rmtcallres; 584 #ifdef PORTMAP 585 } else if (pmap_flag && 586 *((u_int32_t *)(void *)(inbuf)) == 587 *((u_int32_t *)(void *)(outbuf_pmap))) { 588 pmap_reply_flag = 1; 589 msg.acpted_rply.ar_verf = _null_auth; 590 msg.acpted_rply.ar_results.where = 591 (caddr_t)(void *)&bres_pmap; 592 msg.acpted_rply.ar_results.proc = 593 (xdrproc_t)xdr_rmtcallres; 594 #endif /* PORTMAP */ 595 } else 596 continue; 597 xdrmem_create(xdrs, inbuf, (u_int)inlen, XDR_DECODE); 598 if (xdr_replymsg(xdrs, &msg)) { 599 if ((msg.rm_reply.rp_stat == MSG_ACCEPTED) && 600 (msg.acpted_rply.ar_stat == SUCCESS)) { 601 struct netbuf taddr, *np; 602 struct sockaddr_in *bsin; 603 604 #ifdef PORTMAP 605 if (pmap_flag && pmap_reply_flag) { 606 bsin = (struct sockaddr_in *) 607 (void *)&fdlist[i].raddr; 608 bsin->sin_port = 609 htons((u_short)port); 610 taddr.len = taddr.maxlen = 611 fdlist[i].raddr.ss_len; 612 taddr.buf = &fdlist[i].raddr; 613 done = (*eachresult)(resultsp, 614 &taddr, fdlist[i].nconf); 615 } else { 616 #endif 617 #ifdef RPC_DEBUG 618 fprintf(stderr, "uaddr %s\n", 619 uaddrp); 620 #endif 621 np = uaddr2taddr( 622 fdlist[i].nconf, uaddrp); 623 done = (*eachresult)(resultsp, 624 np, fdlist[i].nconf); 625 free(np); 626 #ifdef PORTMAP 627 } 628 #endif 629 } 630 /* otherwise, we just ignore the errors ... */ 631 } 632 /* else some kind of deserialization problem ... */ 633 634 xdrs->x_op = XDR_FREE; 635 msg.acpted_rply.ar_results.proc = (xdrproc_t) xdr_void; 636 (void) xdr_replymsg(xdrs, &msg); 637 (void) (*xresults)(xdrs, resultsp); 638 XDR_DESTROY(xdrs); 639 if (done) { 640 stat = RPC_SUCCESS; 641 goto done_broad; 642 } else { 643 goto recv_again; 644 } 645 } /* The recv for loop */ 646 } /* The giant for loop */ 647 648 done_broad: 649 if (inbuf) 650 (void) free(inbuf); 651 if (outbuf) 652 (void) free(outbuf); 653 #ifdef PORTMAP 654 if (outbuf_pmap) 655 (void) free(outbuf_pmap); 656 #endif 657 for (i = 0; i < fdlistno; i++) { 658 (void) close(fdlist[i].fd); 659 __rpc_freebroadifs(&fdlist[i].nal); 660 } 661 AUTH_DESTROY(sys_auth); 662 (void) __rpc_endconf(handle); 663 664 return (stat); 665 } 666 667 668 enum clnt_stat 669 rpc_broadcast(prog, vers, proc, xargs, argsp, xresults, resultsp, 670 eachresult, nettype) 671 rpcprog_t prog; /* program number */ 672 rpcvers_t vers; /* version number */ 673 rpcproc_t proc; /* procedure number */ 674 xdrproc_t xargs; /* xdr routine for args */ 675 const char * argsp; /* pointer to args */ 676 xdrproc_t xresults; /* xdr routine for results */ 677 caddr_t resultsp; /* pointer to results */ 678 resultproc_t eachresult; /* call with each result obtained */ 679 const char *nettype; /* transport type */ 680 { 681 enum clnt_stat dummy; 682 683 dummy = rpc_broadcast_exp(prog, vers, proc, xargs, argsp, 684 xresults, resultsp, eachresult, 685 INITTIME, WAITTIME, nettype); 686 return (dummy); 687 } 688
Indexes created Tue Sep 23 07:09:52 GMT 2025