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