1 /*-
2 * Copyright (c) 2009, Sun Microsystems, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * - Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 * - Redistributions in binary form must reproduce the above copyright notice,
10 * this list of conditions and the following disclaimer in the documentation
11 * and/or other materials provided with the distribution.
12 * - Neither the name of Sun Microsystems, Inc. nor the names of its
13 * contributors may be used to endorse or promote products derived
14 * from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 * @(#)clnt_bcast.c 1.18 94/05/03 SMI; 1.15 89/04/21 Copyr 1988 Sun Micro
29 * $NetBSD: clnt_bcast.c,v 1.3 2000/07/06 03:05:20 christos Exp $
30 * $FreeBSD: src/lib/libc/rpc/clnt_bcast.c,v 1.9 2006/09/09 22:14:42 mbr Exp $
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_broadenable(int, int, struct broadif *);
111 void __rpc_freebroadifs(broadlist_t *);
112 int __rpc_getbroadifs(int, int, int, broadlist_t *);
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 __unused,int s,struct broadif * bip __unused)204 __rpc_broadenable(int af __unused, int s, struct broadif *bip __unused)
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 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)224 rpc_broadcast_exp(
225 rpcprog_t prog, /* program number */
226 rpcvers_t vers, /* version number */
227 rpcproc_t proc, /* procedure number */
228 xdrproc_t xargs, /* xdr routine for args */
229 caddr_t argsp, /* pointer to args */
230 xdrproc_t xresults, /* xdr routine for results */
231 caddr_t resultsp, /* pointer to results */
232 resultproc_t eachresult, /* call with each result obtained */
233 int inittime, /* how long to wait initially */
234 int waittime, /* maximum time to wait */
235 const char *nettype /* transport type */
236 )
237 {
238 enum clnt_stat stat = RPC_SUCCESS; /* Return status */
239 XDR xdr_stream; /* XDR stream */
240 XDR *xdrs = &xdr_stream;
241 struct rpc_msg msg; /* RPC message */
242 struct timeval t;
243 char *outbuf = NULL; /* Broadcast msg buffer */
244 char *inbuf = NULL; /* Reply buf */
245 int inlen;
246 u_int maxbufsize = 0;
247 AUTH *sys_auth = authunix_create_default();
248 int i;
249 void *handle;
250 char uaddress[1024]; /* A self imposed limit */
251 char *uaddrp = uaddress;
252 int pmap_reply_flag; /* reply recvd from PORTMAP */
253 /* An array of all the suitable broadcast transports */
254 struct {
255 int fd; /* File descriptor */
256 int af;
257 int proto;
258 struct netconfig *nconf; /* Netconfig structure */
259 u_int asize; /* Size of the addr buf */
260 u_int dsize; /* Size of the data buf */
261 struct sockaddr_storage raddr; /* Remote address */
262 broadlist_t nal;
263 } fdlist[MAXBCAST];
264 struct pollfd pfd[MAXBCAST];
265 size_t fdlistno = 0;
266 struct r_rpcb_rmtcallargs barg; /* Remote arguments */
267 struct r_rpcb_rmtcallres bres; /* Remote results */
268 size_t outlen;
269 struct netconfig *nconf;
270 int msec;
271 int pollretval;
272 int fds_found;
273
274 #ifdef PORTMAP
275 size_t outlen_pmap = 0;
276 u_long port; /* Remote port number */
277 int pmap_flag = 0; /* UDP exists ? */
278 char *outbuf_pmap = NULL;
279 struct rmtcallargs barg_pmap; /* Remote arguments */
280 struct rmtcallres bres_pmap; /* Remote results */
281 u_int udpbufsz = 0;
282 #endif /* PORTMAP */
283
284 if (sys_auth == NULL) {
285 return (RPC_SYSTEMERROR);
286 }
287 /*
288 * initialization: create a fd, a broadcast address, and send the
289 * request on the broadcast transport.
290 * Listen on all of them and on replies, call the user supplied
291 * function.
292 */
293
294 if (nettype == NULL)
295 nettype = "datagram_n";
296 if ((handle = __rpc_setconf(nettype)) == NULL) {
297 AUTH_DESTROY(sys_auth);
298 return (RPC_UNKNOWNPROTO);
299 }
300 while ((nconf = __rpc_getconf(handle)) != NULL) {
301 int fd;
302 struct __rpc_sockinfo si;
303
304 if (nconf->nc_semantics != NC_TPI_CLTS)
305 continue;
306 if (fdlistno >= MAXBCAST)
307 break; /* No more slots available */
308 if (!__rpc_nconf2sockinfo(nconf, &si))
309 continue;
310
311 TAILQ_INIT(&fdlist[fdlistno].nal);
312 if (__rpc_getbroadifs(si.si_af, si.si_proto, si.si_socktype,
313 &fdlist[fdlistno].nal) == 0)
314 continue;
315
316 fd = _socket(si.si_af, si.si_socktype, si.si_proto);
317 if (fd < 0) {
318 stat = RPC_CANTSEND;
319 continue;
320 }
321 fdlist[fdlistno].af = si.si_af;
322 fdlist[fdlistno].proto = si.si_proto;
323 fdlist[fdlistno].fd = fd;
324 fdlist[fdlistno].nconf = nconf;
325 fdlist[fdlistno].asize = __rpc_get_a_size(si.si_af);
326 pfd[fdlistno].events = POLLIN | POLLPRI |
327 POLLRDNORM | POLLRDBAND;
328 pfd[fdlistno].fd = fdlist[fdlistno].fd = fd;
329 fdlist[fdlistno].dsize = __rpc_get_t_size(si.si_af, si.si_proto,
330 0);
331
332 if (maxbufsize <= fdlist[fdlistno].dsize)
333 maxbufsize = fdlist[fdlistno].dsize;
334
335 #ifdef PORTMAP
336 if (si.si_af == AF_INET && si.si_proto == IPPROTO_UDP) {
337 udpbufsz = fdlist[fdlistno].dsize;
338 if ((outbuf_pmap = malloc(udpbufsz)) == NULL) {
339 _close(fd);
340 stat = RPC_SYSTEMERROR;
341 goto done_broad;
342 }
343 pmap_flag = 1;
344 }
345 #endif /* PORTMAP */
346 fdlistno++;
347 }
348
349 if (fdlistno == 0) {
350 if (stat == RPC_SUCCESS)
351 stat = RPC_UNKNOWNPROTO;
352 goto done_broad;
353 }
354 if (maxbufsize == 0) {
355 if (stat == RPC_SUCCESS)
356 stat = RPC_CANTSEND;
357 goto done_broad;
358 }
359 inbuf = malloc(maxbufsize);
360 outbuf = malloc(maxbufsize);
361 if ((inbuf == NULL) || (outbuf == NULL)) {
362 stat = RPC_SYSTEMERROR;
363 goto done_broad;
364 }
365
366 /* Serialize all the arguments which have to be sent */
367 gettimeofday(&t, NULL);
368 msg.rm_xid = __RPC_GETXID(&t);
369 msg.rm_direction = CALL;
370 msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
371 msg.rm_call.cb_prog = RPCBPROG;
372 msg.rm_call.cb_vers = RPCBVERS;
373 msg.rm_call.cb_proc = RPCBPROC_CALLIT;
374 barg.prog = prog;
375 barg.vers = vers;
376 barg.proc = proc;
377 barg.args.args_val = argsp;
378 barg.xdr_args = xargs;
379 bres.addr = uaddrp;
380 bres.results.results_val = resultsp;
381 bres.xdr_res = xresults;
382 msg.rm_call.cb_cred = sys_auth->ah_cred;
383 msg.rm_call.cb_verf = sys_auth->ah_verf;
384 xdrmem_create(xdrs, outbuf, maxbufsize, XDR_ENCODE);
385 if ((!xdr_callmsg(xdrs, &msg)) ||
386 (!xdr_rpcb_rmtcallargs(xdrs,
387 (struct rpcb_rmtcallargs *)(void *)&barg))) {
388 stat = RPC_CANTENCODEARGS;
389 goto done_broad;
390 }
391 outlen = xdr_getpos(xdrs);
392 xdr_destroy(xdrs);
393
394 #ifdef PORTMAP
395 /* Prepare the packet for version 2 PORTMAP */
396 if (pmap_flag) {
397 msg.rm_xid++; /* One way to distinguish */
398 msg.rm_call.cb_prog = PMAPPROG;
399 msg.rm_call.cb_vers = PMAPVERS;
400 msg.rm_call.cb_proc = PMAPPROC_CALLIT;
401 barg_pmap.prog = prog;
402 barg_pmap.vers = vers;
403 barg_pmap.proc = proc;
404 barg_pmap.args_ptr = argsp;
405 barg_pmap.xdr_args = xargs;
406 bres_pmap.port_ptr = &port;
407 bres_pmap.xdr_results = xresults;
408 bres_pmap.results_ptr = resultsp;
409 xdrmem_create(xdrs, outbuf_pmap, udpbufsz, XDR_ENCODE);
410 if ((! xdr_callmsg(xdrs, &msg)) ||
411 (! xdr_rmtcall_args(xdrs, &barg_pmap))) {
412 stat = RPC_CANTENCODEARGS;
413 goto done_broad;
414 }
415 outlen_pmap = xdr_getpos(xdrs);
416 xdr_destroy(xdrs);
417 }
418 #endif /* PORTMAP */
419
420 /*
421 * Basic loop: broadcast the packets to transports which
422 * support data packets of size such that one can encode
423 * all the arguments.
424 * Wait a while for response(s).
425 * The response timeout grows larger per iteration.
426 */
427 for (msec = inittime; msec <= waittime; msec += msec) {
428 struct broadif *bip;
429
430 /* Broadcast all the packets now */
431 for (i = 0; i < fdlistno; i++) {
432 if (fdlist[i].dsize < outlen) {
433 stat = RPC_CANTSEND;
434 continue;
435 }
436 for (bip = TAILQ_FIRST(&fdlist[i].nal); bip != NULL;
437 bip = TAILQ_NEXT(bip, link)) {
438 void *addr;
439
440 addr = &bip->broadaddr;
441
442 __rpc_broadenable(fdlist[i].af, fdlist[i].fd,
443 bip);
444
445 /*
446 * Only use version 3 if lowvers is not set
447 */
448
449 if (!__rpc_lowvers)
450 if (_sendto(fdlist[i].fd, outbuf,
451 outlen, 0, (struct sockaddr*)addr,
452 (size_t)fdlist[i].asize) !=
453 outlen) {
454 #ifdef RPC_DEBUG
455 perror("sendto");
456 #endif
457 warnx("clnt_bcast: cannot send"
458 "broadcast packet");
459 stat = RPC_CANTSEND;
460 continue;
461 }
462 #ifdef RPC_DEBUG
463 if (!__rpc_lowvers)
464 fprintf(stderr, "Broadcast packet sent "
465 "for %s\n",
466 fdlist[i].nconf->nc_netid);
467 #endif
468 #ifdef PORTMAP
469 /*
470 * Send the version 2 packet also
471 * for UDP/IP
472 */
473 if (pmap_flag &&
474 fdlist[i].proto == IPPROTO_UDP) {
475 if (_sendto(fdlist[i].fd, outbuf_pmap,
476 outlen_pmap, 0, addr,
477 (size_t)fdlist[i].asize) !=
478 outlen_pmap) {
479 warnx("clnt_bcast: "
480 "Cannot send broadcast packet");
481 stat = RPC_CANTSEND;
482 continue;
483 }
484 }
485 #ifdef RPC_DEBUG
486 fprintf(stderr, "PMAP Broadcast packet "
487 "sent for %s\n",
488 fdlist[i].nconf->nc_netid);
489 #endif
490 #endif /* PORTMAP */
491 }
492 /* End for sending all packets on this transport */
493 } /* End for sending on all transports */
494
495 if (eachresult == NULL) {
496 stat = RPC_SUCCESS;
497 goto done_broad;
498 }
499
500 /*
501 * Get all the replies from these broadcast requests
502 */
503 recv_again:
504
505 switch (pollretval = _poll(pfd, fdlistno, msec)) {
506 case 0: /* timed out */
507 stat = RPC_TIMEDOUT;
508 continue;
509 case -1: /* some kind of error - we ignore it */
510 goto recv_again;
511 } /* end of poll results switch */
512
513 for (i = fds_found = 0;
514 i < fdlistno && fds_found < pollretval; i++) {
515 bool_t done = FALSE;
516
517 if (pfd[i].revents == 0)
518 continue;
519 else if (pfd[i].revents & POLLNVAL) {
520 /*
521 * Something bad has happened to this descri-
522 * ptor. We can cause _poll() to ignore
523 * it simply by using a negative fd. We do that
524 * rather than compacting the pfd[] and fdlist[]
525 * arrays.
526 */
527 pfd[i].fd = -1;
528 fds_found++;
529 continue;
530 } else
531 fds_found++;
532 #ifdef RPC_DEBUG
533 fprintf(stderr, "response for %s\n",
534 fdlist[i].nconf->nc_netid);
535 #endif
536 try_again:
537 inlen = _recvfrom(fdlist[i].fd, inbuf, fdlist[i].dsize,
538 0, (struct sockaddr *)(void *)&fdlist[i].raddr,
539 &fdlist[i].asize);
540 if (inlen < 0) {
541 if (errno == EINTR)
542 goto try_again;
543 warnx("clnt_bcast: Cannot receive reply to "
544 "broadcast");
545 stat = RPC_CANTRECV;
546 continue;
547 }
548 if (inlen < sizeof (u_int32_t))
549 continue; /* Drop that and go ahead */
550 /*
551 * see if reply transaction id matches sent id.
552 * If so, decode the results. If return id is xid + 1
553 * it was a PORTMAP reply
554 */
555 if (*((u_int32_t *)(void *)(inbuf)) ==
556 *((u_int32_t *)(void *)(outbuf))) {
557 pmap_reply_flag = 0;
558 msg.acpted_rply.ar_verf = _null_auth;
559 msg.acpted_rply.ar_results.where =
560 (caddr_t)(void *)&bres;
561 msg.acpted_rply.ar_results.proc =
562 (xdrproc_t)xdr_rpcb_rmtcallres;
563 #ifdef PORTMAP
564 } else if (pmap_flag &&
565 *((u_int32_t *)(void *)(inbuf)) ==
566 *((u_int32_t *)(void *)(outbuf_pmap))) {
567 pmap_reply_flag = 1;
568 msg.acpted_rply.ar_verf = _null_auth;
569 msg.acpted_rply.ar_results.where =
570 (caddr_t)(void *)&bres_pmap;
571 msg.acpted_rply.ar_results.proc =
572 (xdrproc_t)xdr_rmtcallres;
573 #endif /* PORTMAP */
574 } else
575 continue;
576 xdrmem_create(xdrs, inbuf, (u_int)inlen, XDR_DECODE);
577 if (xdr_replymsg(xdrs, &msg)) {
578 if ((msg.rm_reply.rp_stat == MSG_ACCEPTED) &&
579 (msg.acpted_rply.ar_stat == SUCCESS)) {
580 struct netbuf taddr, *np;
581 struct sockaddr_in *sin;
582
583 #ifdef PORTMAP
584 if (pmap_flag && pmap_reply_flag) {
585 sin = (struct sockaddr_in *)
586 (void *)&fdlist[i].raddr;
587 sin->sin_port =
588 htons((u_short)port);
589 taddr.len = taddr.maxlen =
590 fdlist[i].raddr.ss_len;
591 taddr.buf = &fdlist[i].raddr;
592 done = (*eachresult)(resultsp,
593 &taddr, fdlist[i].nconf);
594 } else {
595 #endif /* PORTMAP */
596 #ifdef RPC_DEBUG
597 fprintf(stderr, "uaddr %s\n",
598 uaddrp);
599 #endif
600 np = uaddr2taddr(
601 fdlist[i].nconf, uaddrp);
602 done = (*eachresult)(resultsp,
603 np, fdlist[i].nconf);
604 free(np);
605 #ifdef PORTMAP
606 }
607 #endif /* PORTMAP */
608 }
609 /* otherwise, we just ignore the errors ... */
610 }
611 /* else some kind of deserialization problem ... */
612
613 xdrs->x_op = XDR_FREE;
614 msg.acpted_rply.ar_results.proc = (xdrproc_t) xdr_void;
615 xdr_replymsg(xdrs, &msg);
616 (*xresults)(xdrs, resultsp);
617 XDR_DESTROY(xdrs);
618 if (done) {
619 stat = RPC_SUCCESS;
620 goto done_broad;
621 } else {
622 goto recv_again;
623 }
624 } /* The recv for loop */
625 } /* The giant for loop */
626
627 done_broad:
628 if (inbuf)
629 free(inbuf);
630 if (outbuf)
631 free(outbuf);
632 #ifdef PORTMAP
633 if (outbuf_pmap)
634 free(outbuf_pmap);
635 #endif /* PORTMAP */
636 for (i = 0; i < fdlistno; i++) {
637 _close(fdlist[i].fd);
638 __rpc_freebroadifs(&fdlist[i].nal);
639 }
640 AUTH_DESTROY(sys_auth);
641 __rpc_endconf(handle);
642
643 return (stat);
644 }
645
646
647 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)648 rpc_broadcast(
649 rpcprog_t prog, /* program number */
650 rpcvers_t vers, /* version number */
651 rpcproc_t proc, /* procedure number */
652 xdrproc_t xargs, /* xdr routine for args */
653 caddr_t argsp, /* pointer to args */
654 xdrproc_t xresults, /* xdr routine for results */
655 caddr_t resultsp, /* pointer to results */
656 resultproc_t eachresult, /* call with each result obtained */
657 const char *nettype /* transport type */
658 )
659 {
660 enum clnt_stat dummy;
661
662 dummy = rpc_broadcast_exp(prog, vers, proc, xargs, argsp,
663 xresults, resultsp, eachresult,
664 INITTIME, WAITTIME, nettype);
665 return (dummy);
666 }
667