usr/src/lib/libc/port/nsl/clnt_bcast.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
  28 /* All Rights Reserved */
  29 /*
  30  * Portions of this source code were derived from Berkeley
  31  * 4.3 BSD under license from the Regents of the University of
  32  * California.
  33  */
  34
  35 /*
  36  * Client interface to broadcast service.
  37  *
  38  * The following is kludged-up support for simple rpc broadcasts.
  39  * Someday a large, complicated system will replace these routines.
  40  */
  41
  42 #include "mt.h"
  43 #include "rpc_mt.h"
  44 #include <string.h>
  45 #include <strings.h>
  46 #include <rpc/rpc.h>
  47 #include <rpc/nettype.h>
  48 #include <sys/poll.h>
  49 #include <netdir.h>
  50 #include <rpc/pmap_prot.h>
  51 #ifdef RPC_DEBUG
  52 #include <stdio.h>
  53 #endif
  54 #include <errno.h>
  55 #include <syslog.h>
  56 #include <stdlib.h>
  57 #include <unistd.h>
  58 #include <sys/types.h>
  59 #include <sys/socket.h>
  60 #include <netinet/in.h>
  61 #include <arpa/inet.h>
  62
  63 #define MAXBCAST 20     /* Max no of broadcasting transports */
  64 #define INITTIME 4000   /* Time to wait initially */
  65 #define WAITTIME 8000   /* Maximum time to wait */
  66
  67 int lowvers = 1;        /* by default, broadcast only version 2 over UDP */
  68 #ifndef NETIDLEN
  69 #define NETIDLEN 32
  70 #endif
  71
  72 /*
  73  * If nettype is NULL, it broadcasts on all the available
  74  * datagram_n transports. May potentially lead to broadacst storms
  75  * and hence should be used with caution, care and courage.
  76  *
  77  * The current parameter xdr packet size is limited by the max tsdu
  78  * size of the transport. If the max tsdu size of any transport is
  79  * smaller than the parameter xdr packet, then broadcast is not
  80  * sent on that transport.
  81  *
  82  * Also, the packet size should be less the packet size of
  83  * the data link layer (for ethernet it is 1400 bytes).  There is
  84  * no easy way to find out the max size of the data link layer and
  85  * we are assuming that the args would be smaller than that.
  86  *
  87  * The result size has to be smaller than the transport tsdu size.
  88  *
  89  * We send two packets for UDP, one for rpcbind and one for portmap.
  90  * For those machines which support both rpcbind and portmap, it will
  91  * cause them to reply twice, and also here it will get two responses
  92  * ...  inefficient and clumsy.
  93  */
  94
  95
  96 enum clnt_stat
  97 rpc_broadcast_exp(const rpcprog_t prog, const rpcvers_t vers,
  98     const rpcproc_t proc, const xdrproc_t xargs, caddr_t argsp,
  99     const xdrproc_t xresults, caddr_t resultsp, const resultproc_t eachresult,
 100     const int inittime, const int waittime, const char *netclass)
 101 {
 102         enum clnt_stat  stat = RPC_SUCCESS; /* Return status */
 103         XDR             xdr_stream; /* XDR stream */
 104         XDR             *xdrs = &xdr_stream;
 105         struct rpc_msg  msg;    /* RPC message */
 106         struct timeval  t;
 107         char            *outbuf = NULL; /* Broadcast msg buffer */
 108         char            *inbuf = NULL; /* Reply buf */
 109         uint_t          maxbufsize = 0;
 110         AUTH            *sys_auth = authsys_create_default();
 111         int             i, j;
 112         void            *handle;
 113         char            uaddress[1024]; /* A self imposed limit */
 114         char            *uaddrp = uaddress;
 115         int             pmap_reply_flag; /* reply recvd from PORTMAP */
 116         /* An array of all the suitable broadcast transports */
 117         struct {
 118                 int fd;         /* File descriptor */
 119                 bool_t udp_flag;        /* this is udp */
 120                 struct netconfig *nconf; /* Netconfig structure */
 121                 uint_t asize;   /* Size of the addr buf */
 122                 uint_t dsize;   /* Size of the data buf */
 123                 struct netbuf raddr; /* Remote address */
 124                 struct nd_addrlist *nal; /* Broadcast addrs */
 125         } fdlist[MAXBCAST];
 126         struct pollfd pfd[MAXBCAST];
 127         int             fdlistno = 0;
 128         struct r_rpcb_rmtcallargs barg; /* Remote arguments */
 129         struct r_rpcb_rmtcallres bres; /* Remote results */
 130         struct t_unitdata t_udata, t_rdata;
 131         struct netconfig *nconf;
 132         struct nd_hostserv hs;
 133         int msec;
 134         int pollretval;
 135         int fds_found;
 136         char nettype_array[NETIDLEN];
 137         char *nettype = &nettype_array[0];
 138
 139         rpcport_t *port;        /* Remote port number */
 140         int pmap_flag = 0;      /* UDP exists ? */
 141         char *outbuf_pmap = NULL;
 142         struct p_rmtcallargs barg_pmap; /* Remote arguments */
 143         struct p_rmtcallres bres_pmap; /* Remote results */
 144         struct t_unitdata t_udata_pmap;
 145         int udpbufsz = 0;
 146
 147         if (sys_auth == NULL)
 148                 return (RPC_SYSTEMERROR);
 149         /*
 150          * initialization: create a fd, a broadcast address, and send the
 151          * request on the broadcast transport.
 152          * Listen on all of them and on replies, call the user supplied
 153          * function.
 154          */
 155
 156         if (netclass == NULL)
 157                 nettype = NULL;
 158         else {
 159                 size_t len = strlen(netclass);
 160                 if (len >= sizeof (nettype_array))
 161                         return (RPC_UNKNOWNPROTO);
 162                 (void) strcpy(nettype, netclass);
 163         }
 164
 165         if (nettype == NULL)
 166                 nettype = "datagram_n";
 167         if ((handle = __rpc_setconf((char *)nettype)) == NULL)
 168                 return (RPC_UNKNOWNPROTO);
 169         while (nconf = __rpc_getconf(handle)) {
 170                 struct t_info tinfo;
 171                 int fd;
 172                 uint_t addrlen;
 173
 174                 if (nconf->nc_semantics != NC_TPI_CLTS)
 175                         continue;
 176                 if (fdlistno >= MAXBCAST)
 177                         break;  /* No more slots available */
 178                 if ((fd = t_open(nconf->nc_device, O_RDWR, &tinfo)) == -1) {
 179                         stat = RPC_CANTSEND;
 180                         continue;
 181                 }
 182                 if (t_bind(fd, NULL, NULL) == -1) {
 183                         (void) t_close(fd);
 184                         stat = RPC_CANTSEND;
 185                         continue;
 186                 }
 187
 188                 /* Do protocol specific negotiating for broadcast */
 189                 if (netdir_options(nconf, ND_SET_BROADCAST, fd, NULL)) {
 190                         (void) t_close(fd);
 191                         stat = RPC_NOBROADCAST;
 192                         continue;
 193                 }
 194                 fdlist[fdlistno].fd = fd;
 195                 fdlist[fdlistno].nconf = nconf;
 196                 fdlist[fdlistno].udp_flag = FALSE;
 197                 if (((addrlen = __rpc_get_a_size(tinfo.addr)) == 0) ||
 198                     ((fdlist[fdlistno].raddr.buf = malloc(addrlen)) == NULL)) {
 199                         (void) t_close(fd);
 200                         stat = RPC_SYSTEMERROR;
 201                         goto done_broad;
 202                 }
 203                 fdlist[fdlistno].raddr.maxlen = addrlen;
 204                 fdlist[fdlistno].raddr.len = addrlen;
 205                 pfd[fdlistno].events = POLLIN | POLLPRI |
 206                         POLLRDNORM | POLLRDBAND;
 207                 pfd[fdlistno].fd = fdlist[fdlistno].fd = fd;
 208                 fdlist[fdlistno].asize = addrlen;
 209
 210                 if ((fdlist[fdlistno].dsize = __rpc_get_t_size(0,
 211                                 tinfo.tsdu)) == 0) {
 212                         (void) t_close(fd);
 213                         free(fdlist[fdlistno].raddr.buf);
 214                         stat = RPC_SYSTEMERROR; /* XXX */
 215                         goto done_broad;
 216                 }
 217
 218                 if (maxbufsize <= fdlist[fdlistno].dsize)
 219                         maxbufsize = fdlist[fdlistno].dsize;
 220                 if (strcmp(nconf->nc_protofmly, NC_INET) == 0 &&
 221                     strcmp(nconf->nc_proto, NC_UDP) == 0) {
 222                         udpbufsz = fdlist[fdlistno].dsize;
 223                         if ((outbuf_pmap = malloc(udpbufsz)) == NULL) {
 224                                 (void) t_close(fd);
 225                                 free(fdlist[fdlistno].raddr.buf);
 226                                 stat = RPC_SYSTEMERROR;
 227                                 goto done_broad;
 228                         }
 229                         pmap_flag = 1;
 230                         fdlist[fdlistno].udp_flag = TRUE;
 231                 }
 232                 fdlistno++;
 233         }
 234
 235         if (fdlistno == 0) {
 236                 if (stat == RPC_SUCCESS)
 237                         stat = RPC_UNKNOWNPROTO;
 238                 goto done_broad;
 239         }
 240         if (maxbufsize == 0) {
 241                 if (stat == RPC_SUCCESS)
 242                         stat = RPC_CANTSEND;
 243                 goto done_broad;
 244         }
 245         inbuf = malloc((size_t)maxbufsize);
 246         outbuf = malloc((size_t)maxbufsize);
 247         if ((inbuf == NULL) || (outbuf == NULL)) {
 248                 stat = RPC_SYSTEMERROR;
 249                 goto done_broad;
 250         }
 251
 252         /* Serialize all the arguments which have to be sent */
 253         (void) gettimeofday(&t, NULL);
 254         msg.rm_xid = getpid() ^ t.tv_sec ^ t.tv_usec;
 255         msg.rm_direction = CALL;
 256         msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
 257         msg.rm_call.cb_prog = RPCBPROG;
 258         msg.rm_call.cb_vers = RPCBVERS;
 259         msg.rm_call.cb_proc = RPCBPROC_CALLIT;
 260         barg.prog = prog;
 261         barg.vers = vers;
 262         barg.proc = proc;
 263         barg.args.args_val = argsp;
 264         barg.xdr_args = xargs;
 265         bres.addr = uaddrp;
 266         bres.results.results_val = resultsp;
 267         bres.xdr_res = xresults;
 268         msg.rm_call.cb_cred = sys_auth->ah_cred;
 269         msg.rm_call.cb_verf = sys_auth->ah_verf;
 270         xdrmem_create(xdrs, outbuf, maxbufsize, XDR_ENCODE);
 271         if ((!xdr_callmsg(xdrs, &msg)) ||
 272             (!xdr_rpcb_rmtcallargs(xdrs, &barg))) {
 273                 stat = RPC_CANTENCODEARGS;
 274                 goto done_broad;
 275         }
 276         t_udata.opt.len = 0;
 277         t_udata.udata.buf = outbuf;
 278         t_udata.udata.len = xdr_getpos(xdrs);
 279         t_udata.udata.maxlen = t_udata.udata.len;
 280         /* XXX Should have set opt to its legal maxlen. */
 281         t_rdata.opt.len = t_rdata.opt.maxlen = 0;
 282         xdr_destroy(xdrs);
 283
 284         /* Prepare the packet for version 2 PORTMAP */
 285         if (pmap_flag) {
 286                 msg.rm_xid++;   /* One way to distinguish */
 287                 msg.rm_call.cb_prog = PMAPPROG;
 288                 msg.rm_call.cb_vers = PMAPVERS;
 289                 msg.rm_call.cb_proc = PMAPPROC_CALLIT;
 290                 barg_pmap.prog = prog;
 291                 barg_pmap.vers = vers;
 292                 barg_pmap.proc = proc;
 293                 barg_pmap.args.args_val = argsp;
 294                 barg_pmap.xdr_args = xargs;
 295                 port = &bres_pmap.port; /* for use later on */
 296                 bres_pmap.xdr_res = xresults;
 297                 bres_pmap.res.res_val = resultsp;
 298                 xdrmem_create(xdrs, outbuf_pmap, udpbufsz, XDR_ENCODE);
 299                 if ((!xdr_callmsg(xdrs, &msg)) ||
 300                     (!xdr_rmtcallargs(xdrs, &barg_pmap))) {
 301                         stat = RPC_CANTENCODEARGS;
 302                         goto done_broad;
 303                 }
 304                 t_udata_pmap.opt.len = 0;
 305                 t_udata_pmap.udata.buf = outbuf_pmap;
 306                 t_udata_pmap.udata.len = xdr_getpos(xdrs);
 307                 xdr_destroy(xdrs);
 308         }
 309
 310         /*
 311          * Basic loop: broadcast the packets to transports which
 312          * support data packets of size such that one can encode
 313          * all the arguments.
 314          * Wait a while for response(s).
 315          * The response timeout grows larger per iteration.
 316          */
 317         hs.h_host = HOST_BROADCAST;
 318         hs.h_serv = "rpcbind";
 319
 320         for (msec = inittime; msec <= waittime; msec += msec) {
 321                 /* Broadcast all the packets now */
 322                 for (i = 0; i < fdlistno; i++) {
 323                         if (strcmp(fdlist[i].nconf->nc_protofmly,
 324                             NC_INET6) == 0) {
 325                                 /* if it's IPv6 */
 326
 327                                 struct netbuf addr;
 328                                 struct sockaddr_in6 sa6;
 329
 330                                 /* fill in the multicast address */
 331                                 bzero((char *)&sa6, sizeof (sa6));
 332                                 sa6.sin6_family = AF_INET6;
 333                                 sa6.sin6_port = htons(PMAPPORT);
 334                                 (void) inet_pton(AF_INET6, RPCB_MULTICAST_ADDR,
 335                                         &sa6.sin6_addr);
 336                                 addr.maxlen = sizeof (struct sockaddr_in6);
 337                                 addr.len = addr.maxlen;
 338                                 addr.buf = (char *)&sa6;
 339
 340                                 /* now send rpcbind message */
 341                                 t_udata.addr = addr;
 342
 343
 344                                 if (t_sndudata(fdlist[i].fd,
 345                                         &t_udata)) {
 346                                         (void) syslog(LOG_ERR,
 347                                         "Cannot send broadcast\
 348 packet: %m");
 349 #ifdef  RPC_DEBUG
 350                                 t_error("rpc_broadcast: t_sndudata");
 351 #endif
 352                                         stat = RPC_CANTSEND;
 353                                         continue;
 354                                 }
 355
 356                         } else {
 357
 358                                 struct nd_addrlist *addrlist;
 359
 360                                 if (fdlist[i].dsize < t_udata.udata.len) {
 361                                         stat = RPC_CANTSEND;
 362                                         continue;
 363                                 }
 364                                 if (netdir_getbyname(fdlist[i].nconf, &hs,
 365                                         &addrlist) || (addrlist->n_cnt == 0)) {
 366                                         stat = RPC_N2AXLATEFAILURE;
 367                                         continue;
 368                                 }
 369
 370                                 for (j = 0; j < addrlist->n_cnt; j++) {
 371 #ifdef  RPC_DEBUG
 372                                         struct netconfig *nconf =
 373                                                 fdlist[i].nconf;
 374 #endif
 375
 376                                         t_udata.addr = addrlist->n_addrs[j];
 377
 378                                         /*
 379                                          * Only use version 3 if lowvers
 380                                          * is not set or transport is not UDP.
 381                                          */
 382
 383                                         if (!lowvers || !fdlist[i].udp_flag)
 384                                         if (t_sndudata(fdlist[i].fd,
 385                                                 &t_udata)) {
 386                                                 (void) syslog(LOG_ERR,
 387                                                 "Cannot send broadcast\
 388 packet: %m");
 389 #ifdef  RPC_DEBUG
 390                                         t_error("rpc_broadcast: t_sndudata");
 391 #endif
 392                                                         stat = RPC_CANTSEND;
 393                                                         continue;
 394                                                 };
 395 #ifdef  RPC_DEBUG
 396                                         if (!lowvers || !fdlist[i].udp_flag)
 397                                                 fprintf(stderr, "Broadcast\
 398 packet sent for %s\n", nconf->nc_netid);
 399 #endif
 400                                         /*
 401                                          * Send the version 2 packet also
 402                                          * for UDP/IP
 403                                          */
 404                                         if (fdlist[i].udp_flag) {
 405                                                 t_udata_pmap.addr =
 406                                                         t_udata.addr;
 407                                                 if (t_sndudata(fdlist[i].fd,
 408                                                         &t_udata_pmap)) {
 409                                                         (void) syslog(LOG_ERR,\
 410 "Cannot send broadcast packet: %m");
 411 #ifdef RPC_DEBUG
 412                                                 t_error("rpc_broadcast:\
 413 t_sndudata");
 414 #endif
 415                                                 stat = RPC_CANTSEND;
 416                                                 continue;
 417                                                 }
 418                                         }
 419 #ifdef RPC_DEBUG
 420                                         fprintf(stderr, "PMAP Broadcast packet\
 421 sent for %s\n", nconf->nc_netid);
 422 #endif
 423                                 }
 424                         /* End for sending all packets on this transport */
 425                         (void) netdir_free((char *)addrlist, ND_ADDRLIST);
 426                         } /* end non-IPv6 */
 427
 428                 }               /* End for sending on all transports */
 429
 430                 if (eachresult == NULL) {
 431                         stat = RPC_SUCCESS;
 432                         goto done_broad;
 433                 }
 434
 435                 /*
 436                  * Get all the replies from these broadcast requests
 437                  */
 438         recv_again:
 439
 440                 switch (pollretval = poll(pfd, fdlistno, msec)) {
 441                 case 0:         /* timed out */
 442                         stat = RPC_TIMEDOUT;
 443                         continue;
 444                 case -1:        /* some kind of error - we ignore it */
 445                         goto recv_again;
 446                 }               /* end of poll results switch */
 447
 448                 t_rdata.udata.buf = inbuf;
 449
 450                 for (i = fds_found = 0;
 451                         i < fdlistno && fds_found < pollretval; i++) {
 452
 453                         int flag;
 454                         bool_t  done = FALSE;
 455
 456                         if (pfd[i].revents == 0)
 457                                 continue;
 458                         else if (pfd[i].revents & POLLNVAL) {
 459                                 /*
 460                                  * Something bad has happened to this descri-
 461                                  * ptor. We can cause poll() to ignore
 462                                  * it simply by using a negative fd.  We do that
 463                                  * rather than compacting the pfd[] and fdlist[]
 464                                  * arrays.
 465                                  */
 466                                 pfd[i].fd = -1;
 467                                 fds_found++;
 468                                 continue;
 469                         } else
 470                                 fds_found++;
 471 #ifdef RPC_DEBUG
 472                         fprintf(stderr, "response for %s\n",
 473                                 fdlist[i].nconf->nc_netid);
 474 #endif
 475                 try_again:
 476                         t_rdata.udata.maxlen = fdlist[i].dsize;
 477                         t_rdata.udata.len = 0;
 478                         t_rdata.addr = fdlist[i].raddr;
 479                         if (t_rcvudata(fdlist[i].fd, &t_rdata, &flag) == -1) {
 480                                 if (t_errno == TSYSERR && errno == EINTR)
 481                                         goto try_again;
 482
 483                                 /*
 484                                  * Ignore any T_UDERR look errors.
 485                                  * We should never see any ICMP port
 486                                  * unreachables when broadcasting but it has
 487                                  * been observed with broken IP
 488                                  * implementations.
 489                                  */
 490                                 if (t_errno == TLOOK &&
 491                                     t_look(fdlist[i].fd) == T_UDERR &&
 492                                     t_rcvuderr(fdlist[i].fd, NULL) == 0)
 493                                         goto recv_again;
 494
 495                                 (void) syslog(LOG_ERR,
 496                                         "Cannot receive reply to \
 497                                         broadcast: %m");
 498                                 stat = RPC_CANTRECV;
 499                                 continue;
 500                         }
 501                         /*
 502                          * Not taking care of flag for T_MORE.
 503                          * We are assuming that
 504                          * such calls should not take more than one
 505                          * transport packet.
 506                          */
 507                         if (flag & T_MORE)
 508                                 continue; /* Drop that and go ahead */
 509                         if (t_rdata.udata.len < (uint_t)sizeof (uint32_t))
 510                                 continue; /* Drop that and go ahead */
 511                         /*
 512                          * see if reply transaction id matches sent id.
 513                          * If so, decode the results. If return id is xid + 1
 514                          * it was a PORTMAP reply
 515                          */
 516                         /* LINTED pointer cast */
 517                         if (*((uint32_t *)(inbuf)) == *((uint32_t *)(outbuf))) {
 518                                 pmap_reply_flag = 0;
 519                                 msg.acpted_rply.ar_verf = _null_auth;
 520                                 msg.acpted_rply.ar_results.where =
 521                                         (caddr_t)&bres;
 522                                 msg.acpted_rply.ar_results.proc =
 523                                         (xdrproc_t)xdr_rpcb_rmtcallres;
 524                         } else if (pmap_flag &&
 525                                 /* LINTED pointer cast */
 526                                 *((uint32_t *)(inbuf)) ==
 527                                         /* LINTED pointer cast */
 528                                         *((uint32_t *)(outbuf_pmap))) {
 529                                 pmap_reply_flag = 1;
 530                                 msg.acpted_rply.ar_verf = _null_auth;
 531                                 msg.acpted_rply.ar_results.where =
 532                                         (caddr_t)&bres_pmap;
 533                                 msg.acpted_rply.ar_results.proc =
 534                                         (xdrproc_t)xdr_rmtcallres;
 535                         } else
 536                                 continue;
 537                         xdrmem_create(xdrs, inbuf,
 538                                 (uint_t)t_rdata.udata.len, XDR_DECODE);
 539                         if (xdr_replymsg(xdrs, &msg)) {
 540                                 if ((msg.rm_reply.rp_stat == MSG_ACCEPTED) &&
 541                                     (msg.acpted_rply.ar_stat == SUCCESS)) {
 542                                         struct netbuf *taddr;
 543                                         if (pmap_flag && pmap_reply_flag) {
 544                                                 /* convert port to taddr */
 545                                                 /* LINTED pointer cast */
 546                                                 ((struct sockaddr_in *)
 547                                                 t_rdata.addr.buf)->sin_port =
 548                                                 htons((ushort_t)*port);
 549                                                 taddr = &t_rdata.addr;
 550                                         } else /* Convert the uaddr to taddr */
 551                                                 taddr = uaddr2taddr(
 552                                                     fdlist[i].nconf,
 553                                                     uaddrp);
 554                                         done = (*eachresult)(resultsp, taddr,
 555                                                 fdlist[i].nconf);
 556 #ifdef RPC_DEBUG
 557                                 {
 558                                         int k;
 559
 560                                         printf("rmt addr = ");
 561                                         for (k = 0; k < taddr->len; k++)
 562                                                 printf("%d ", taddr->buf[k]);
 563                                         printf("\n");
 564                                 }
 565 #endif
 566                                         if (taddr && !pmap_reply_flag)
 567                                                 netdir_free((char *)taddr,
 568                                                             ND_ADDR);
 569                                 }
 570                                 /* otherwise, we just ignore the errors ... */
 571                         }
 572                         /* else some kind of deserialization problem ... */
 573
 574                         xdrs->x_op = XDR_FREE;
 575                         msg.acpted_rply.ar_results.proc = (xdrproc_t)xdr_void;
 576                         (void) xdr_replymsg(xdrs, &msg);
 577                         (void) (*xresults)(xdrs, resultsp);
 578                         XDR_DESTROY(xdrs);
 579                         if (done) {
 580                                 stat = RPC_SUCCESS;
 581                                 goto done_broad;
 582                         } else {
 583                                 if (rpc_callerr.re_status == RPC_SYSTEMERROR) {
 584                                         stat = RPC_SYSTEMERROR;
 585                                         goto done_broad;
 586                                 }
 587                                 goto recv_again;
 588                         }
 589                 }               /* The recv for loop */
 590         }                       /* The giant for loop */
 591
 592 done_broad:
 593         free(inbuf);
 594         free(outbuf);
 595         free(outbuf_pmap);
 596         for (i = 0; i < fdlistno; i++) {
 597                 (void) t_close(fdlist[i].fd);
 598                 free(fdlist[i].raddr.buf);
 599         }
 600         AUTH_DESTROY(sys_auth);
 601         (void) __rpc_endconf(handle);
 602
 603         return (stat);
 604 }
 605
 606 enum clnt_stat
 607 rpc_broadcast(const rpcprog_t prog, const rpcvers_t vers, const rpcproc_t proc,
 608         const xdrproc_t xargs, caddr_t argsp, xdrproc_t const xresults,
 609         caddr_t resultsp, const resultproc_t eachresult, const char *nettype)
 610 {
 611         return (rpc_broadcast_exp(prog, vers, proc, xargs, argsp,
 612                 xresults, resultsp, eachresult,
 613                 INITTIME, WAITTIME, nettype));
 614 }