lib/libc/rpc/clnt_bcast.c

   1 /*      $NetBSD: clnt_bcast.c,v 1.3 2000/07/06 03:05:20 christos Exp $  */
   2
   3 /*
   4  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
   5  * unrestricted use provided that this legend is included on all tape
   6  * media and as a part of the software program in whole or part.  Users
   7  * may copy or modify Sun RPC without charge, but are not authorized
   8  * to license or distribute it to anyone else except as part of a product or
   9  * program developed by the user.
  10  *
  11  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  12  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  13  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  14  *
  15  * Sun RPC is provided with no support and without any obligation on the
  16  * part of Sun Microsystems, Inc. to assist in its use, correction,
  17  * modification or enhancement.
  18  *
  19  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  20  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  21  * OR ANY PART THEREOF.
  22  *
  23  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  24  * or profits or other special, indirect and consequential damages, even if
  25  * Sun has been advised of the possibility of such damages.
  26  *
  27  * Sun Microsystems, Inc.
  28  * 2550 Garcia Avenue
  29  * Mountain View, California  94043
  30  */
  31 /*
  32  * Copyright (c) 1986-1991 by Sun Microsystems Inc.
  33  */
  34
  35 #if defined(LIBC_SCCS) && !defined(lint)
  36 #ident  "@(#)clnt_bcast.c       1.18    94/05/03 SMI"
  37 static char sccsid[] = "@(#)clnt_bcast.c 1.15 89/04/21 Copyr 1988 Sun Micro";
  38 #endif
  39 #include <sys/cdefs.h>
  40 __FBSDID("$FreeBSD$");
  41
  42
  43 /*
  44  * clnt_bcast.c
  45  * Client interface to broadcast service.
  46  *
  47  * Copyright (C) 1988, Sun Microsystems, Inc.
  48  *
  49  * The following is kludged-up support for simple rpc broadcasts.
  50  * Someday a large, complicated system will replace these routines.
  51  */
  52
  53 #include "namespace.h"
  54 #include <sys/types.h>
  55 #include <sys/socket.h>
  56 #include <sys/queue.h>
  57 #include <net/if.h>
  58 #include <netinet/in.h>
  59 #include <ifaddrs.h>
  60 #include <sys/poll.h>
  61 #include <rpc/rpc.h>
  62 #ifdef PORTMAP
  63 #include <rpc/pmap_prot.h>
  64 #include <rpc/pmap_clnt.h>
  65 #include <rpc/pmap_rmt.h>
  66 #endif                          /* PORTMAP */
  67 #include <rpc/nettype.h>
  68 #include <arpa/inet.h>
  69 #ifdef RPC_DEBUG
  70 #include <stdio.h>
  71 #endif
  72 #include <errno.h>
  73 #include <stdlib.h>
  74 #include <unistd.h>
  75 #include <netdb.h>
  76 #include <err.h>
  77 #include <string.h>
  78 #include "un-namespace.h"
  79
  80 #include "rpc_com.h"
  81
  82 #define MAXBCAST 20     /* Max no of broadcasting transports */
  83 #define INITTIME 4000   /* Time to wait initially */
  84 #define WAITTIME 8000   /* Maximum time to wait */
  85
  86 /*
  87  * If nettype is NULL, it broadcasts on all the available
  88  * datagram_n transports. May potentially lead to broadacst storms
  89  * and hence should be used with caution, care and courage.
  90  *
  91  * The current parameter xdr packet size is limited by the max tsdu
  92  * size of the transport. If the max tsdu size of any transport is
  93  * smaller than the parameter xdr packet, then broadcast is not
  94  * sent on that transport.
  95  *
  96  * Also, the packet size should be less the packet size of
  97  * the data link layer (for ethernet it is 1400 bytes).  There is
  98  * no easy way to find out the max size of the data link layer and
  99  * we are assuming that the args would be smaller than that.
 100  *
 101  * The result size has to be smaller than the transport tsdu size.
 102  *
 103  * If PORTMAP has been defined, we send two packets for UDP, one for
 104  * rpcbind and one for portmap. For those machines which support
 105  * both rpcbind and portmap, it will cause them to reply twice, and
 106  * also here it will get two responses ... inefficient and clumsy.
 107  */
 108
 109 struct broadif {
 110         int index;
 111         struct sockaddr_storage broadaddr;
 112         TAILQ_ENTRY(broadif) link;
 113 };
 114
 115 typedef TAILQ_HEAD(, broadif) broadlist_t;
 116
 117 int __rpc_getbroadifs(int, int, int, broadlist_t *);
 118 void __rpc_freebroadifs(broadlist_t *);
 119 int __rpc_broadenable(int, int, struct broadif *);
 120
 121 int __rpc_lowvers = 0;
 122
 123 int
 124 __rpc_getbroadifs(int af, int proto, int socktype, broadlist_t *list)
 125 {
 126         int count = 0;
 127         struct broadif *bip;
 128         struct ifaddrs *ifap, *ifp;
 129 #ifdef INET6
 130         struct sockaddr_in6 *sin6;
 131 #endif
 132         struct sockaddr_in *sin;
 133         struct addrinfo hints, *res;
 134
 135         if (getifaddrs(&ifp) < 0)
 136                 return 0;
 137
 138         memset(&hints, 0, sizeof hints);
 139
 140         hints.ai_family = af;
 141         hints.ai_protocol = proto;
 142         hints.ai_socktype = socktype;
 143
 144         if (getaddrinfo(NULL, "sunrpc", &hints, &res) != 0) {
 145                 freeifaddrs(ifp);
 146                 return 0;
 147         }
 148
 149         for (ifap = ifp; ifap != NULL; ifap = ifap->ifa_next) {
 150                 if (ifap->ifa_addr->sa_family != af ||
 151                     !(ifap->ifa_flags & IFF_UP))
 152                         continue;
 153                 bip = (struct broadif *)malloc(sizeof *bip);
 154                 if (bip == NULL)
 155                         break;
 156                 bip->index = if_nametoindex(ifap->ifa_name);
 157                 if (
 158 #ifdef INET6
 159                 af != AF_INET6 &&
 160 #endif
 161                 (ifap->ifa_flags & IFF_BROADCAST) &&
 162                  ifap->ifa_broadaddr) {
 163                         memcpy(&bip->broadaddr, ifap->ifa_broadaddr,
 164                             (size_t)ifap->ifa_broadaddr->sa_len);
 165                         sin = (struct sockaddr_in *)(void *)&bip->broadaddr;
 166                         sin->sin_port =
 167                             ((struct sockaddr_in *)
 168                             (void *)res->ai_addr)->sin_port;
 169                 } else
 170 #ifdef INET6
 171                 if (af == AF_INET6 && (ifap->ifa_flags & IFF_MULTICAST)) {
 172                         sin6 = (struct sockaddr_in6 *)(void *)&bip->broadaddr;
 173                         inet_pton(af, RPCB_MULTICAST_ADDR, &sin6->sin6_addr);
 174                         sin6->sin6_family = af;
 175                         sin6->sin6_len = sizeof *sin6;
 176                         sin6->sin6_port =
 177                             ((struct sockaddr_in6 *)
 178                             (void *)res->ai_addr)->sin6_port;
 179                         sin6->sin6_scope_id = bip->index;
 180                 } else
 181 #endif
 182                 {
 183                         free(bip);
 184                         continue;
 185                 }
 186                 TAILQ_INSERT_TAIL(list, bip, link);
 187                 count++;
 188         }
 189         freeifaddrs(ifp);
 190         freeaddrinfo(res);
 191
 192         return count;
 193 }
 194
 195 void
 196 __rpc_freebroadifs(broadlist_t *list)
 197 {
 198         struct broadif *bip, *next;
 199
 200         bip = TAILQ_FIRST(list);
 201
 202         while (bip != NULL) {
 203                 next = TAILQ_NEXT(bip, link);
 204                 free(bip);
 205                 bip = next;
 206         }
 207 }
 208
 209 int
 210 /*ARGSUSED*/
 211 __rpc_broadenable(int af, int s, struct broadif *bip)
 212 {
 213         int o = 1;
 214
 215 #if 0
 216         if (af == AF_INET6) {
 217                 fprintf(stderr, "set v6 multicast if to %d\n", bip->index);
 218                 if (_setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_IF, &bip->index,
 219                     sizeof bip->index) < 0)
 220                         return -1;
 221         } else
 222 #endif
 223                 if (_setsockopt(s, SOL_SOCKET, SO_BROADCAST, &o, sizeof o) < 0)
 224                         return -1;
 225
 226         return 0;
 227 }
 228
 229
 230 enum clnt_stat
 231 rpc_broadcast_exp(prog, vers, proc, xargs, argsp, xresults, resultsp,
 232         eachresult, inittime, waittime, nettype)
 233         rpcprog_t       prog;           /* program number */
 234         rpcvers_t       vers;           /* version number */
 235         rpcproc_t       proc;           /* procedure number */
 236         xdrproc_t       xargs;          /* xdr routine for args */
 237         caddr_t         argsp;          /* pointer to args */
 238         xdrproc_t       xresults;       /* xdr routine for results */
 239         caddr_t         resultsp;       /* pointer to results */
 240         resultproc_t    eachresult;     /* call with each result obtained */
 241         int             inittime;       /* how long to wait initially */
 242         int             waittime;       /* maximum time to wait */
 243         const char              *nettype;       /* transport type */
 244 {
 245         enum clnt_stat  stat = RPC_SUCCESS; /* Return status */
 246         XDR             xdr_stream; /* XDR stream */
 247         XDR             *xdrs = &xdr_stream;
 248         struct rpc_msg  msg;    /* RPC message */
 249         struct timeval  t;
 250         char            *outbuf = NULL; /* Broadcast msg buffer */
 251         char            *inbuf = NULL; /* Reply buf */
 252         int             inlen;
 253         u_int           maxbufsize = 0;
 254         AUTH            *sys_auth = authunix_create_default();
 255         int             i;
 256         void            *handle;
 257         char            uaddress[1024]; /* A self imposed limit */
 258         char            *uaddrp = uaddress;
 259         int             pmap_reply_flag; /* reply recvd from PORTMAP */
 260         /* An array of all the suitable broadcast transports */
 261         struct {
 262                 int fd;         /* File descriptor */
 263                 int af;
 264                 int proto;
 265                 struct netconfig *nconf; /* Netconfig structure */
 266                 u_int asize;    /* Size of the addr buf */
 267                 u_int dsize;    /* Size of the data buf */
 268                 struct sockaddr_storage raddr; /* Remote address */
 269                 broadlist_t nal;
 270         } fdlist[MAXBCAST];
 271         struct pollfd pfd[MAXBCAST];
 272         size_t fdlistno = 0;
 273         struct r_rpcb_rmtcallargs barg; /* Remote arguments */
 274         struct r_rpcb_rmtcallres bres; /* Remote results */
 275         size_t outlen;
 276         struct netconfig *nconf;
 277         int msec;
 278         int pollretval;
 279         int fds_found;
 280
 281 #ifdef PORTMAP
 282         size_t outlen_pmap = 0;
 283         u_long port;            /* Remote port number */
 284         int pmap_flag = 0;      /* UDP exists ? */
 285         char *outbuf_pmap = NULL;
 286         struct rmtcallargs barg_pmap;   /* Remote arguments */
 287         struct rmtcallres bres_pmap; /* Remote results */
 288         u_int udpbufsz = 0;
 289 #endif                          /* PORTMAP */
 290
 291         if (sys_auth == NULL) {
 292                 return (RPC_SYSTEMERROR);
 293         }
 294         /*
 295          * initialization: create a fd, a broadcast address, and send the
 296          * request on the broadcast transport.
 297          * Listen on all of them and on replies, call the user supplied
 298          * function.
 299          */
 300
 301         if (nettype == NULL)
 302                 nettype = "datagram_n";
 303         if ((handle = __rpc_setconf(nettype)) == NULL) {
 304                 AUTH_DESTROY(sys_auth);
 305                 return (RPC_UNKNOWNPROTO);
 306         }
 307         while ((nconf = __rpc_getconf(handle)) != NULL) {
 308                 int fd;
 309                 struct __rpc_sockinfo si;
 310
 311                 if (nconf->nc_semantics != NC_TPI_CLTS)
 312                         continue;
 313                 if (fdlistno >= MAXBCAST)
 314                         break;  /* No more slots available */
 315                 if (!__rpc_nconf2sockinfo(nconf, &si))
 316                         continue;
 317
 318                 TAILQ_INIT(&fdlist[fdlistno].nal);
 319                 if (__rpc_getbroadifs(si.si_af, si.si_proto, si.si_socktype,
 320                     &fdlist[fdlistno].nal) == 0)
 321                         continue;
 322
 323                 fd = _socket(si.si_af, si.si_socktype, si.si_proto);
 324                 if (fd < 0) {
 325                         stat = RPC_CANTSEND;
 326                         continue;
 327                 }
 328                 fdlist[fdlistno].af = si.si_af;
 329                 fdlist[fdlistno].proto = si.si_proto;
 330                 fdlist[fdlistno].fd = fd;
 331                 fdlist[fdlistno].nconf = nconf;
 332                 fdlist[fdlistno].asize = __rpc_get_a_size(si.si_af);
 333                 pfd[fdlistno].events = POLLIN | POLLPRI |
 334                         POLLRDNORM | POLLRDBAND;
 335                 pfd[fdlistno].fd = fdlist[fdlistno].fd = fd;
 336                 fdlist[fdlistno].dsize = __rpc_get_t_size(si.si_af, si.si_proto,
 337                                                           0);
 338
 339                 if (maxbufsize <= fdlist[fdlistno].dsize)
 340                         maxbufsize = fdlist[fdlistno].dsize;
 341
 342 #ifdef PORTMAP
 343                 if (si.si_af == AF_INET && si.si_proto == IPPROTO_UDP) {
 344                         udpbufsz = fdlist[fdlistno].dsize;
 345                         if ((outbuf_pmap = malloc(udpbufsz)) == NULL) {
 346                                 _close(fd);
 347                                 stat = RPC_SYSTEMERROR;
 348                                 goto done_broad;
 349                         }
 350                         pmap_flag = 1;
 351                 }
 352 #endif                          /* PORTMAP */
 353                 fdlistno++;
 354         }
 355
 356         if (fdlistno == 0) {
 357                 if (stat == RPC_SUCCESS)
 358                         stat = RPC_UNKNOWNPROTO;
 359                 goto done_broad;
 360         }
 361         if (maxbufsize == 0) {
 362                 if (stat == RPC_SUCCESS)
 363                         stat = RPC_CANTSEND;
 364                 goto done_broad;
 365         }
 366         inbuf = malloc(maxbufsize);
 367         outbuf = malloc(maxbufsize);
 368         if ((inbuf == NULL) || (outbuf == NULL)) {
 369                 stat = RPC_SYSTEMERROR;
 370                 goto done_broad;
 371         }
 372
 373         /* Serialize all the arguments which have to be sent */
 374         (void) gettimeofday(&t, NULL);
 375         msg.rm_xid = __RPC_GETXID(&t);
 376         msg.rm_direction = CALL;
 377         msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
 378         msg.rm_call.cb_prog = RPCBPROG;
 379         msg.rm_call.cb_vers = RPCBVERS;
 380         msg.rm_call.cb_proc = RPCBPROC_CALLIT;
 381         barg.prog = prog;
 382         barg.vers = vers;
 383         barg.proc = proc;
 384         barg.args.args_val = argsp;
 385         barg.xdr_args = xargs;
 386         bres.addr = uaddrp;
 387         bres.results.results_val = resultsp;
 388         bres.xdr_res = xresults;
 389         msg.rm_call.cb_cred = sys_auth->ah_cred;
 390         msg.rm_call.cb_verf = sys_auth->ah_verf;
 391         xdrmem_create(xdrs, outbuf, maxbufsize, XDR_ENCODE);
 392         if ((!xdr_callmsg(xdrs, &msg)) ||
 393             (!xdr_rpcb_rmtcallargs(xdrs,
 394             (struct rpcb_rmtcallargs *)(void *)&barg))) {
 395                 stat = RPC_CANTENCODEARGS;
 396                 goto done_broad;
 397         }
 398         outlen = xdr_getpos(xdrs);
 399         xdr_destroy(xdrs);
 400
 401 #ifdef PORTMAP
 402         /* Prepare the packet for version 2 PORTMAP */
 403         if (pmap_flag) {
 404                 msg.rm_xid++;   /* One way to distinguish */
 405                 msg.rm_call.cb_prog = PMAPPROG;
 406                 msg.rm_call.cb_vers = PMAPVERS;
 407                 msg.rm_call.cb_proc = PMAPPROC_CALLIT;
 408                 barg_pmap.prog = prog;
 409                 barg_pmap.vers = vers;
 410                 barg_pmap.proc = proc;
 411                 barg_pmap.args_ptr = argsp;
 412                 barg_pmap.xdr_args = xargs;
 413                 bres_pmap.port_ptr = &port;
 414                 bres_pmap.xdr_results = xresults;
 415                 bres_pmap.results_ptr = resultsp;
 416                 xdrmem_create(xdrs, outbuf_pmap, udpbufsz, XDR_ENCODE);
 417                 if ((! xdr_callmsg(xdrs, &msg)) ||
 418                     (! xdr_rmtcall_args(xdrs, &barg_pmap))) {
 419                         stat = RPC_CANTENCODEARGS;
 420                         goto done_broad;
 421                 }
 422                 outlen_pmap = xdr_getpos(xdrs);
 423                 xdr_destroy(xdrs);
 424         }
 425 #endif                          /* PORTMAP */
 426
 427         /*
 428          * Basic loop: broadcast the packets to transports which
 429          * support data packets of size such that one can encode
 430          * all the arguments.
 431          * Wait a while for response(s).
 432          * The response timeout grows larger per iteration.
 433          */
 434         for (msec = inittime; msec <= waittime; msec += msec) {
 435                 struct broadif *bip;
 436
 437                 /* Broadcast all the packets now */
 438                 for (i = 0; i < fdlistno; i++) {
 439                         if (fdlist[i].dsize < outlen) {
 440                                 stat = RPC_CANTSEND;
 441                                 continue;
 442                         }
 443                         for (bip = TAILQ_FIRST(&fdlist[i].nal); bip != NULL;
 444                              bip = TAILQ_NEXT(bip, link)) {
 445                                 void *addr;
 446
 447                                 addr = &bip->broadaddr;
 448
 449                                 __rpc_broadenable(fdlist[i].af, fdlist[i].fd,
 450                                     bip);
 451
 452                                 /*
 453                                  * Only use version 3 if lowvers is not set
 454                                  */
 455
 456                                 if (!__rpc_lowvers)
 457                                         if (_sendto(fdlist[i].fd, outbuf,
 458                                             outlen, 0, (struct sockaddr*)addr,
 459                                             (size_t)fdlist[i].asize) !=
 460                                             outlen) {
 461 #ifdef RPC_DEBUG
 462                                                 perror("sendto");
 463 #endif
 464                                                 warnx("clnt_bcast: cannot send "
 465                                                       "broadcast packet");
 466                                                 stat = RPC_CANTSEND;
 467                                                 continue;
 468                                         };
 469 #ifdef RPC_DEBUG
 470                                 if (!__rpc_lowvers)
 471                                         fprintf(stderr, "Broadcast packet sent "
 472                                                 "for %s\n",
 473                                                  fdlist[i].nconf->nc_netid);
 474 #endif
 475 #ifdef PORTMAP
 476                                 /*
 477                                  * Send the version 2 packet also
 478                                  * for UDP/IP
 479                                  */
 480                                 if (pmap_flag &&
 481                                     fdlist[i].proto == IPPROTO_UDP) {
 482                                         if (_sendto(fdlist[i].fd, outbuf_pmap,
 483                                             outlen_pmap, 0, addr,
 484                                             (size_t)fdlist[i].asize) !=
 485                                                 outlen_pmap) {
 486                                                 warnx("clnt_bcast: "
 487                                                     "Cannot send broadcast packet");
 488                                                 stat = RPC_CANTSEND;
 489                                                 continue;
 490                                         }
 491                                 }
 492 #ifdef RPC_DEBUG
 493                                 fprintf(stderr, "PMAP Broadcast packet "
 494                                         "sent for %s\n",
 495                                         fdlist[i].nconf->nc_netid);
 496 #endif
 497 #endif                          /* PORTMAP */
 498                         }
 499                         /* End for sending all packets on this transport */
 500                 }       /* End for sending on all transports */
 501
 502                 if (eachresult == NULL) {
 503                         stat = RPC_SUCCESS;
 504                         goto done_broad;
 505                 }
 506
 507                 /*
 508                  * Get all the replies from these broadcast requests
 509                  */
 510         recv_again:
 511
 512                 switch (pollretval = _poll(pfd, fdlistno, msec)) {
 513                 case 0:         /* timed out */
 514                         stat = RPC_TIMEDOUT;
 515                         continue;
 516                 case -1:        /* some kind of error - we ignore it */
 517                         goto recv_again;
 518                 }               /* end of poll results switch */
 519
 520                 for (i = fds_found = 0;
 521                      i < fdlistno && fds_found < pollretval; i++) {
 522                         bool_t done = FALSE;
 523
 524                         if (pfd[i].revents == 0)
 525                                 continue;
 526                         else if (pfd[i].revents & POLLNVAL) {
 527                                 /*
 528                                  * Something bad has happened to this descri-
 529                                  * ptor. We can cause _poll() to ignore
 530                                  * it simply by using a negative fd.  We do that
 531                                  * rather than compacting the pfd[] and fdlist[]
 532                                  * arrays.
 533                                  */
 534                                 pfd[i].fd = -1;
 535                                 fds_found++;
 536                                 continue;
 537                         } else
 538                                 fds_found++;
 539 #ifdef RPC_DEBUG
 540                         fprintf(stderr, "response for %s\n",
 541                                 fdlist[i].nconf->nc_netid);
 542 #endif
 543                 try_again:
 544                         inlen = _recvfrom(fdlist[i].fd, inbuf, fdlist[i].dsize,
 545                             0, (struct sockaddr *)(void *)&fdlist[i].raddr,
 546                             &fdlist[i].asize);
 547                         if (inlen < 0) {
 548                                 if (errno == EINTR)
 549                                         goto try_again;
 550                                 warnx("clnt_bcast: Cannot receive reply to "
 551                                         "broadcast");
 552                                 stat = RPC_CANTRECV;
 553                                 continue;
 554                         }
 555                         if (inlen < sizeof (u_int32_t))
 556                                 continue; /* Drop that and go ahead */
 557                         /*
 558                          * see if reply transaction id matches sent id.
 559                          * If so, decode the results. If return id is xid + 1
 560                          * it was a PORTMAP reply
 561                          */
 562                         if (*((u_int32_t *)(void *)(inbuf)) ==
 563                             *((u_int32_t *)(void *)(outbuf))) {
 564                                 pmap_reply_flag = 0;
 565                                 msg.acpted_rply.ar_verf = _null_auth;
 566                                 msg.acpted_rply.ar_results.where =
 567                                         (caddr_t)(void *)&bres;
 568                                 msg.acpted_rply.ar_results.proc =
 569                                         (xdrproc_t)xdr_rpcb_rmtcallres;
 570 #ifdef PORTMAP
 571                         } else if (pmap_flag &&
 572                                 *((u_int32_t *)(void *)(inbuf)) ==
 573                                 *((u_int32_t *)(void *)(outbuf_pmap))) {
 574                                 pmap_reply_flag = 1;
 575                                 msg.acpted_rply.ar_verf = _null_auth;
 576                                 msg.acpted_rply.ar_results.where =
 577                                         (caddr_t)(void *)&bres_pmap;
 578                                 msg.acpted_rply.ar_results.proc =
 579                                         (xdrproc_t)xdr_rmtcallres;
 580 #endif                          /* PORTMAP */
 581                         } else
 582                                 continue;
 583                         xdrmem_create(xdrs, inbuf, (u_int)inlen, XDR_DECODE);
 584                         if (xdr_replymsg(xdrs, &msg)) {
 585                                 if ((msg.rm_reply.rp_stat == MSG_ACCEPTED) &&
 586                                     (msg.acpted_rply.ar_stat == SUCCESS)) {
 587                                         struct netbuf taddr, *np;
 588                                         struct sockaddr_in *sin;
 589
 590 #ifdef PORTMAP
 591                                         if (pmap_flag && pmap_reply_flag) {
 592                                                 sin = (struct sockaddr_in *)
 593                                                     (void *)&fdlist[i].raddr;
 594                                                 sin->sin_port =
 595                                                     htons((u_short)port);
 596                                                 taddr.len = taddr.maxlen =
 597                                                     fdlist[i].raddr.ss_len;
 598                                                 taddr.buf = &fdlist[i].raddr;
 599                                                 done = (*eachresult)(resultsp,
 600                                                     &taddr, fdlist[i].nconf);
 601                                         } else {
 602 #endif                          /* PORTMAP */
 603 #ifdef RPC_DEBUG
 604                                                 fprintf(stderr, "uaddr %s\n",
 605                                                     uaddrp);
 606 #endif
 607                                                 np = uaddr2taddr(
 608                                                     fdlist[i].nconf, uaddrp);
 609                                                 done = (*eachresult)(resultsp,
 610                                                     np, fdlist[i].nconf);
 611                                                 free(np);
 612 #ifdef PORTMAP
 613                                         }
 614 #endif                          /* PORTMAP */
 615                                 }
 616                                 /* otherwise, we just ignore the errors ... */
 617                         }
 618                         /* else some kind of deserialization problem ... */
 619
 620                         xdrs->x_op = XDR_FREE;
 621                         msg.acpted_rply.ar_results.proc = (xdrproc_t) xdr_void;
 622                         (void) xdr_replymsg(xdrs, &msg);
 623                         (void) (*xresults)(xdrs, resultsp);
 624                         XDR_DESTROY(xdrs);
 625                         if (done) {
 626                                 stat = RPC_SUCCESS;
 627                                 goto done_broad;
 628                         } else {
 629                                 goto recv_again;
 630                         }
 631                 }               /* The recv for loop */
 632         }                       /* The giant for loop */
 633
 634 done_broad:
 635         if (inbuf)
 636                 (void) free(inbuf);
 637         if (outbuf)
 638                 (void) free(outbuf);
 639 #ifdef PORTMAP
 640         if (outbuf_pmap)
 641                 (void) 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 enum clnt_stat
 655 rpc_broadcast(prog, vers, proc, xargs, argsp, xresults, resultsp,
 656                         eachresult, nettype)
 657         rpcprog_t       prog;           /* program number */
 658         rpcvers_t       vers;           /* version number */
 659         rpcproc_t       proc;           /* procedure number */
 660         xdrproc_t       xargs;          /* xdr routine for args */
 661         caddr_t         argsp;          /* pointer to args */
 662         xdrproc_t       xresults;       /* xdr routine for results */
 663         caddr_t         resultsp;       /* pointer to results */
 664         resultproc_t    eachresult;     /* call with each result obtained */
 665         const char              *nettype;       /* transport type */
 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 }