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