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