lib/libnfs-sync.c

   1 /*
   2    Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU Lesser General Public License as published by
   6    the Free Software Foundation; either version 2.1 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public License
  15    along with this program; if not, see <http://www.gnu.org/licenses/>.
  16 */
  17 /*
  18  * High level api to nfs filesystems
  19  */
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #ifdef AROS
  25 #include "aros_compat.h"
  26 #endif
  27
  28 #ifdef WIN32
  29 #include "win32_compat.h"
  30 #endif
  31
  32 #ifdef HAVE_SYS_SOCKET_H
  33 #include <sys/socket.h>
  34 #endif
  35
  36 #ifdef HAVE_NET_IF_H
  37 #include <net/if.h>
  38 #endif
  39
  40 #ifdef ANDROID
  41 #define statvfs statfs
  42 #endif
  43
  44 #ifdef HAVE_SYS_VFS_H
  45 #include <sys/vfs.h>
  46 #endif
  47
  48 #ifdef HAVE_SYS_STATVFS_H
  49 #include <sys/statvfs.h>
  50 #endif
  51
  52 #ifdef HAVE_SYS_IOCTL_H
  53 #include <sys/ioctl.h>
  54 #endif
  55
  56 #ifdef HAVE_POLL_H
  57 #include <poll.h>
  58 #endif
  59
  60 #ifdef HAVE_NETDB_H
  61 #include <netdb.h>
  62 #endif
  63
  64 #ifdef HAVE_UNISTD_H
  65 #include <unistd.h>
  66 #endif
  67
  68 #ifdef HAVE_NETINET_IN_H
  69 #include <netinet/in.h>
  70 #endif
  71
  72 #ifdef HAVE_STRINGS_H
  73 #include <strings.h>
  74 #endif
  75
  76 #include <stdio.h>
  77 #include <stdlib.h>
  78 #include <string.h>
  79 #include <assert.h>
  80 #include <sys/types.h>
  81 #include <sys/stat.h>
  82 #include <fcntl.h>
  83 #include <errno.h>
  84
  85 #ifdef HAVE_SYS_SOCKIO_H
  86 #include <sys/sockio.h>
  87 #endif
  88
  89 #include "libnfs-zdr.h"
  90 #include "libnfs.h"
  91 #include "libnfs-raw.h"
  92 #include "libnfs-raw-mount.h"
  93 #include "libnfs-raw-nfs.h"
  94 #include "libnfs-private.h"
  95
  96 struct sync_cb_data {
  97         int is_finished;
  98         int status;
  99         uint64_t offset;
 100         void *return_data;
 101         int return_int;
 102         const char *call;
 103 };
 104
 105
 106 static void wait_for_reply(struct rpc_context *rpc, struct sync_cb_data *cb_data)
 107 {
 108         struct pollfd pfd;
 109
 110         assert(rpc->magic == RPC_CONTEXT_MAGIC);
 111
 112         while (!cb_data->is_finished) {
 113
 114                 pfd.fd = rpc_get_fd(rpc);
 115                 pfd.events = rpc_which_events(rpc);
 116                 if (poll(&pfd, 1, -1) < 0) {
 117                         rpc_set_error(rpc, "Poll failed");
 118                         cb_data->status = -EIO;
 119                         break;
 120                 }
 121                 if (rpc_service(rpc, pfd.revents) < 0) {
 122                         rpc_set_error(rpc, "rpc_service failed");
 123                         cb_data->status = -EIO;
 124                         break;
 125                 }
 126                 if (rpc_get_fd(rpc) == -1) {
 127                         rpc_set_error(rpc, "Socket closed\n");
 128                         break;
 129                 }
 130         }
 131 }
 132
 133 static void wait_for_nfs_reply(struct nfs_context *nfs, struct sync_cb_data *cb_data)
 134 {
 135         struct pollfd pfd;
 136
 137         while (!cb_data->is_finished) {
 138
 139                 pfd.fd = nfs_get_fd(nfs);
 140                 pfd.events = nfs_which_events(nfs);
 141                 if (poll(&pfd, 1, -1) < 0) {
 142                         nfs_set_error(nfs, "Poll failed");
 143                         cb_data->status = -EIO;
 144                         break;
 145                 }
 146                 if (nfs_service(nfs, pfd.revents) < 0) {
 147                         nfs_set_error(nfs, "nfs_service failed");
 148                         cb_data->status = -EIO;
 149                         break;
 150                 }
 151         }
 152 }
 153
 154
 155
 156
 157
 158
 159 /*
 160  * connect to the server and mount the export
 161  */
 162 static void mount_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 163 {
 164         struct sync_cb_data *cb_data = private_data;
 165
 166         cb_data->is_finished = 1;
 167         cb_data->status = status;
 168
 169         if (status < 0) {
 170                 nfs_set_error(nfs, "mount/mnt call failed with \"%s\"", (char *)data);
 171                 return;
 172         }
 173 }
 174
 175 int nfs_mount(struct nfs_context *nfs, const char *server, const char *export)
 176 {
 177         struct sync_cb_data cb_data;
 178         struct rpc_context *rpc = nfs_get_rpc_context(nfs);
 179
 180         assert(rpc->magic == RPC_CONTEXT_MAGIC);
 181
 182         cb_data.is_finished = 0;
 183
 184         if (nfs_mount_async(nfs, server, export, mount_cb, &cb_data) != 0) {
 185                 nfs_set_error(nfs, "nfs_mount_async failed");
 186                 return -1;
 187         }
 188
 189         wait_for_nfs_reply(nfs, &cb_data);
 190
 191         /* Dont want any more callbacks even if the socket is closed */
 192         rpc->connect_cb = NULL;
 193
 194         return cb_data.status;
 195 }
 196
 197
 198 /*
 199  * stat()
 200  */
 201 static void stat_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 202 {
 203         struct sync_cb_data *cb_data = private_data;
 204
 205         cb_data->is_finished = 1;
 206         cb_data->status = status;
 207
 208         if (status < 0) {
 209                 nfs_set_error(nfs, "stat call failed with \"%s\"", (char *)data);
 210                 return;
 211         }
 212 #ifdef WIN32
 213         memcpy(cb_data->return_data, data, sizeof(struct __stat64));
 214 #else
 215   memcpy(cb_data->return_data, data, sizeof(struct stat));
 216 #endif
 217 }
 218
 219 #ifdef WIN32
 220 int nfs_stat(struct nfs_context *nfs, const char *path, struct __stat64 *st)
 221 #else
 222 int nfs_stat(struct nfs_context *nfs, const char *path, struct stat *st)
 223 #endif
 224 {
 225         struct sync_cb_data cb_data;
 226
 227         cb_data.is_finished = 0;
 228         cb_data.return_data = st;
 229
 230         if (nfs_stat_async(nfs, path, stat_cb, &cb_data) != 0) {
 231                 nfs_set_error(nfs, "nfs_stat_async failed");
 232                 return -1;
 233         }
 234
 235         wait_for_nfs_reply(nfs, &cb_data);
 236
 237         return cb_data.status;
 238 }
 239
 240 static void stat64_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 241 {
 242         struct sync_cb_data *cb_data = private_data;
 243
 244         cb_data->is_finished = 1;
 245         cb_data->status = status;
 246
 247         if (status < 0) {
 248                 nfs_set_error(nfs, "stat call failed with \"%s\"", (char *)data);
 249                 return;
 250         }
 251         memcpy(cb_data->return_data, data, sizeof(struct nfs_stat_64));
 252 }
 253
 254 int nfs_stat64(struct nfs_context *nfs, const char *path, struct nfs_stat_64 *st)
 255 {
 256         struct sync_cb_data cb_data;
 257
 258         cb_data.is_finished = 0;
 259         cb_data.return_data = st;
 260
 261         if (nfs_stat64_async(nfs, path, stat64_cb, &cb_data) != 0) {
 262                 nfs_set_error(nfs, "nfs_stat64_async failed");
 263                 return -1;
 264         }
 265
 266         wait_for_nfs_reply(nfs, &cb_data);
 267
 268         return cb_data.status;
 269 }
 270
 271 int nfs_lstat64(struct nfs_context *nfs, const char *path, struct nfs_stat_64 *st)
 272 {
 273         struct sync_cb_data cb_data;
 274
 275         cb_data.is_finished = 0;
 276         cb_data.return_data = st;
 277
 278         if (nfs_lstat64_async(nfs, path, stat64_cb, &cb_data) != 0) {
 279                 nfs_set_error(nfs, "nfs_lstat64_async failed");
 280                 return -1;
 281         }
 282
 283         wait_for_nfs_reply(nfs, &cb_data);
 284
 285         return cb_data.status;
 286 }
 287
 288 /*
 289  * open()
 290  */
 291 static void open_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 292 {
 293         struct sync_cb_data *cb_data = private_data;
 294         struct nfsfh *fh, **nfsfh;
 295
 296         cb_data->is_finished = 1;
 297         cb_data->status = status;
 298
 299         if (status < 0) {
 300                 nfs_set_error(nfs, "open call failed with \"%s\"", (char *)data);
 301                 return;
 302         }
 303
 304         fh    = data;
 305         nfsfh = cb_data->return_data;
 306         *nfsfh = fh;
 307 }
 308
 309 int nfs_open(struct nfs_context *nfs, const char *path, int flags, struct nfsfh **nfsfh)
 310 {
 311         struct sync_cb_data cb_data;
 312
 313         cb_data.is_finished = 0;
 314         cb_data.return_data = nfsfh;
 315
 316         if (nfs_open_async(nfs, path, flags, open_cb, &cb_data) != 0) {
 317                 nfs_set_error(nfs, "nfs_open_async failed");
 318                 return -1;
 319         }
 320
 321         wait_for_nfs_reply(nfs, &cb_data);
 322
 323         return cb_data.status;
 324 }
 325
 326 /*
 327  * chdir()
 328  */
 329 static void chdir_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 330 {
 331         struct sync_cb_data *cb_data = private_data;
 332
 333         cb_data->is_finished = 1;
 334         cb_data->status = status;
 335
 336         if (status < 0) {
 337                 nfs_set_error(nfs, "chdir call failed with \"%s\"", (char *)data);
 338                 return;
 339         }
 340 }
 341
 342 int nfs_chdir(struct nfs_context *nfs, const char *path)
 343 {
 344         struct sync_cb_data cb_data;
 345
 346         cb_data.is_finished = 0;
 347
 348         if (nfs_chdir_async(nfs, path, chdir_cb, &cb_data) != 0) {
 349                 nfs_set_error(nfs, "nfs_chdir_async failed with %s",
 350                         nfs_get_error(nfs));
 351                 return -1;
 352         }
 353
 354         wait_for_nfs_reply(nfs, &cb_data);
 355
 356         return cb_data.status;
 357 }
 358
 359
 360
 361 /*
 362  * pread()
 363  */
 364 static void pread_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 365 {
 366         struct sync_cb_data *cb_data = private_data;
 367         char *buffer;
 368         cb_data->is_finished = 1;
 369         cb_data->status = status;
 370
 371         if (status < 0) {
 372                 nfs_set_error(nfs, "%s call failed with \"%s\"", cb_data->call, (char *)data);
 373                 return;
 374         }
 375
 376         buffer = cb_data->return_data;
 377         memcpy(buffer, (char *)data, status);
 378 }
 379
 380 int nfs_pread(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, char *buffer)
 381 {
 382         struct sync_cb_data cb_data;
 383
 384         cb_data.is_finished = 0;
 385         cb_data.return_data = buffer;
 386         cb_data.call = "pread";
 387
 388         if (nfs_pread_async(nfs, nfsfh, offset, count, pread_cb, &cb_data) != 0) {
 389                 nfs_set_error(nfs, "nfs_pread_async failed");
 390                 return -1;
 391         }
 392
 393         wait_for_nfs_reply(nfs, &cb_data);
 394
 395         return cb_data.status;
 396 }
 397
 398 /*
 399  * read()
 400  */
 401 int nfs_read(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, char *buffer)
 402 {
 403         struct sync_cb_data cb_data;
 404
 405         cb_data.is_finished = 0;
 406         cb_data.return_data = buffer;
 407         cb_data.call = "read";
 408
 409         if (nfs_read_async(nfs, nfsfh, count, pread_cb, &cb_data) != 0) {
 410                 nfs_set_error(nfs, "nfs_read_async failed");
 411                 return -1;
 412         }
 413
 414         wait_for_nfs_reply(nfs, &cb_data);
 415
 416         return cb_data.status;
 417 }
 418
 419 /*
 420  * close()
 421  */
 422 static void close_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 423 {
 424         struct sync_cb_data *cb_data = private_data;
 425         cb_data->is_finished = 1;
 426         cb_data->status = status;
 427
 428         if (status < 0) {
 429                 nfs_set_error(nfs, "close call failed with \"%s\"", (char *)data);
 430                 return;
 431         }
 432 }
 433
 434 int nfs_close(struct nfs_context *nfs, struct nfsfh *nfsfh)
 435 {
 436         struct sync_cb_data cb_data;
 437
 438         cb_data.is_finished = 0;
 439
 440         if (nfs_close_async(nfs, nfsfh, close_cb, &cb_data) != 0) {
 441                 nfs_set_error(nfs, "nfs_close_async failed");
 442                 return -1;
 443         }
 444
 445         wait_for_nfs_reply(nfs, &cb_data);
 446
 447         return cb_data.status;
 448 }
 449
 450
 451
 452
 453 /*
 454  * fstat()
 455  */
 456 int nfs_fstat(struct nfs_context *nfs, struct nfsfh *nfsfh, struct stat *st)
 457 {
 458         struct sync_cb_data cb_data;
 459
 460         cb_data.is_finished = 0;
 461         cb_data.return_data = st;
 462
 463         if (nfs_fstat_async(nfs, nfsfh, stat_cb, &cb_data) != 0) {
 464                 nfs_set_error(nfs, "nfs_fstat_async failed");
 465                 return -1;
 466         }
 467
 468         wait_for_nfs_reply(nfs, &cb_data);
 469
 470         return cb_data.status;
 471 }
 472
 473 /*
 474  * fstat64()
 475  */
 476 int nfs_fstat64(struct nfs_context *nfs, struct nfsfh *nfsfh, struct nfs_stat_64 *st)
 477 {
 478         struct sync_cb_data cb_data;
 479
 480         cb_data.is_finished = 0;
 481         cb_data.return_data = st;
 482
 483         if (nfs_fstat64_async(nfs, nfsfh, stat64_cb, &cb_data) != 0) {
 484                 nfs_set_error(nfs, "nfs_fstat64_async failed");
 485                 return -1;
 486         }
 487
 488         wait_for_nfs_reply(nfs, &cb_data);
 489
 490         return cb_data.status;
 491 }
 492
 493
 494 /*
 495  * pwrite()
 496  */
 497 static void pwrite_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 498 {
 499         struct sync_cb_data *cb_data = private_data;
 500         cb_data->is_finished = 1;
 501         cb_data->status = status;
 502
 503         if (status < 0)
 504                 nfs_set_error(nfs, "%s call failed with \"%s\"", cb_data->call, (char *)data);
 505 }
 506
 507 int nfs_pwrite(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, char *buf)
 508 {
 509         struct sync_cb_data cb_data;
 510
 511         cb_data.is_finished = 0;
 512         cb_data.call = "pwrite";
 513
 514         if (nfs_pwrite_async(nfs, nfsfh, offset, count, buf, pwrite_cb, &cb_data) != 0) {
 515                 nfs_set_error(nfs, "nfs_pwrite_async failed");
 516                 return -1;
 517         }
 518
 519         wait_for_nfs_reply(nfs, &cb_data);
 520
 521         return cb_data.status;
 522 }
 523
 524 /*
 525  * write()
 526  */
 527 int nfs_write(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, char *buf)
 528 {
 529         struct sync_cb_data cb_data;
 530
 531         cb_data.is_finished = 0;
 532         cb_data.call = "write";
 533
 534         if (nfs_write_async(nfs, nfsfh, count, buf, pwrite_cb, &cb_data) != 0) {
 535                 nfs_set_error(nfs, "nfs_write_async failed");
 536                 return -1;
 537         }
 538
 539         wait_for_nfs_reply(nfs, &cb_data);
 540
 541         return cb_data.status;
 542 }
 543
 544
 545 /*
 546  * fsync()
 547  */
 548 static void fsync_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 549 {
 550         struct sync_cb_data *cb_data = private_data;
 551         cb_data->is_finished = 1;
 552         cb_data->status = status;
 553
 554         if (status < 0) {
 555                 nfs_set_error(nfs, "fsync call failed with \"%s\"", (char *)data);
 556                 return;
 557         }
 558 }
 559
 560 int nfs_fsync(struct nfs_context *nfs, struct nfsfh *nfsfh)
 561 {
 562         struct sync_cb_data cb_data;
 563
 564         cb_data.is_finished = 0;
 565
 566         if (nfs_fsync_async(nfs, nfsfh, fsync_cb, &cb_data) != 0) {
 567                 nfs_set_error(nfs, "nfs_fsync_async failed");
 568                 return -1;
 569         }
 570
 571         wait_for_nfs_reply(nfs, &cb_data);
 572
 573         return cb_data.status;
 574 }
 575
 576
 577
 578
 579 /*
 580  * ftruncate()
 581  */
 582 static void ftruncate_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 583 {
 584         struct sync_cb_data *cb_data = private_data;
 585         cb_data->is_finished = 1;
 586         cb_data->status = status;
 587
 588         if (status < 0) {
 589                 nfs_set_error(nfs, "ftruncate call failed with \"%s\"", (char *)data);
 590                 return;
 591         }
 592 }
 593
 594 int nfs_ftruncate(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t length)
 595 {
 596         struct sync_cb_data cb_data;
 597
 598         cb_data.is_finished = 0;
 599
 600         if (nfs_ftruncate_async(nfs, nfsfh, length, ftruncate_cb, &cb_data) != 0) {
 601                 nfs_set_error(nfs, "nfs_ftruncate_async failed");
 602                 return -1;
 603         }
 604
 605         wait_for_nfs_reply(nfs, &cb_data);
 606
 607         return cb_data.status;
 608 }
 609
 610
 611
 612 /*
 613  * truncate()
 614  */
 615 static void truncate_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 616 {
 617         struct sync_cb_data *cb_data = private_data;
 618         cb_data->is_finished = 1;
 619         cb_data->status = status;
 620
 621         if (status < 0) {
 622                 nfs_set_error(nfs, "truncate call failed with \"%s\"", (char *)data);
 623                 return;
 624         }
 625 }
 626
 627 int nfs_truncate(struct nfs_context *nfs, const char *path, uint64_t length)
 628 {
 629         struct sync_cb_data cb_data;
 630
 631         cb_data.is_finished = 0;
 632
 633         if (nfs_truncate_async(nfs, path, length, truncate_cb, &cb_data) != 0) {
 634                 nfs_set_error(nfs, "nfs_ftruncate_async failed");
 635                 return -1;
 636         }
 637
 638         wait_for_nfs_reply(nfs, &cb_data);
 639
 640         return cb_data.status;
 641 }
 642
 643
 644
 645
 646
 647 /*
 648  * mkdir()
 649  */
 650 static void mkdir_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 651 {
 652         struct sync_cb_data *cb_data = private_data;
 653         cb_data->is_finished = 1;
 654         cb_data->status = status;
 655
 656         if (status < 0) {
 657                 nfs_set_error(nfs, "mkdir call failed with \"%s\"", (char *)data);
 658                 return;
 659         }
 660 }
 661
 662 int nfs_mkdir(struct nfs_context *nfs, const char *path)
 663 {
 664         struct sync_cb_data cb_data;
 665
 666         cb_data.is_finished = 0;
 667
 668         if (nfs_mkdir_async(nfs, path, mkdir_cb, &cb_data) != 0) {
 669                 nfs_set_error(nfs, "nfs_mkdir_async failed");
 670                 return -1;
 671         }
 672
 673         wait_for_nfs_reply(nfs, &cb_data);
 674
 675         return cb_data.status;
 676 }
 677
 678
 679
 680
 681
 682 /*
 683  * rmdir()
 684  */
 685 static void rmdir_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 686 {
 687         struct sync_cb_data *cb_data = private_data;
 688         cb_data->is_finished = 1;
 689         cb_data->status = status;
 690
 691         if (status < 0) {
 692                 nfs_set_error(nfs, "rmdir call failed with \"%s\"", (char *)data);
 693                 return;
 694         }
 695 }
 696
 697 int nfs_rmdir(struct nfs_context *nfs, const char *path)
 698 {
 699         struct sync_cb_data cb_data;
 700
 701         cb_data.is_finished = 0;
 702
 703         if (nfs_rmdir_async(nfs, path, rmdir_cb, &cb_data) != 0) {
 704                 nfs_set_error(nfs, "nfs_rmdir_async failed");
 705                 return -1;
 706         }
 707
 708         wait_for_nfs_reply(nfs, &cb_data);
 709
 710         return cb_data.status;
 711 }
 712
 713
 714
 715 /*
 716  * creat()
 717  */
 718 static void creat_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 719 {
 720         struct sync_cb_data *cb_data = private_data;
 721         struct nfsfh *fh, **nfsfh;
 722
 723         cb_data->is_finished = 1;
 724         cb_data->status = status;
 725
 726         if (status < 0) {
 727                 nfs_set_error(nfs, "creat call failed with \"%s\"", (char *)data);
 728                 return;
 729         }
 730
 731         fh    = data;
 732         nfsfh = cb_data->return_data;
 733         *nfsfh = fh;
 734 }
 735
 736 int nfs_create(struct nfs_context *nfs, const char *path, int flags, int mode, struct nfsfh **nfsfh)
 737 {
 738         struct sync_cb_data cb_data;
 739
 740         cb_data.is_finished = 0;
 741         cb_data.return_data = nfsfh;
 742
 743         if (nfs_create_async(nfs, path, flags, mode, creat_cb, &cb_data) != 0) {
 744                 nfs_set_error(nfs, "nfs_create_async failed");
 745                 return -1;
 746         }
 747
 748         wait_for_nfs_reply(nfs, &cb_data);
 749
 750         return cb_data.status;
 751 }
 752
 753 int nfs_creat(struct nfs_context *nfs, const char *path, int mode, struct nfsfh **nfsfh)
 754 {
 755         return nfs_create(nfs, path, 0, mode, nfsfh);
 756 }
 757
 758 /*
 759  * mknod()
 760  */
 761 static void mknod_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 762 {
 763         struct sync_cb_data *cb_data = private_data;
 764
 765         cb_data->is_finished = 1;
 766         cb_data->status = status;
 767
 768         if (status < 0) {
 769                 nfs_set_error(nfs, "mknod call failed with \"%s\"", (char *)data);
 770                 return;
 771         }
 772 }
 773
 774 int nfs_mknod(struct nfs_context *nfs, const char *path, int mode, int dev)
 775 {
 776         struct sync_cb_data cb_data;
 777
 778         cb_data.is_finished = 0;
 779
 780         if (nfs_mknod_async(nfs, path, mode, dev, mknod_cb, &cb_data) != 0) {
 781                 nfs_set_error(nfs, "nfs_creat_async failed");
 782                 return -1;
 783         }
 784
 785         wait_for_nfs_reply(nfs, &cb_data);
 786
 787         return cb_data.status;
 788 }
 789
 790
 791 /*
 792  * unlink()
 793  */
 794 static void unlink_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 795 {
 796         struct sync_cb_data *cb_data = private_data;
 797
 798         cb_data->is_finished = 1;
 799         cb_data->status = status;
 800
 801         if (status < 0) {
 802                 nfs_set_error(nfs, "unlink call failed with \"%s\"", (char *)data);
 803                 return;
 804         }
 805 }
 806
 807 int nfs_unlink(struct nfs_context *nfs, const char *path)
 808 {
 809         struct sync_cb_data cb_data;
 810
 811         cb_data.is_finished = 0;
 812
 813         if (nfs_unlink_async(nfs, path, unlink_cb, &cb_data) != 0) {
 814                 nfs_set_error(nfs, "nfs_unlink_async failed");
 815                 return -1;
 816         }
 817
 818         wait_for_nfs_reply(nfs, &cb_data);
 819
 820         return cb_data.status;
 821 }
 822
 823
 824
 825 /*
 826  * opendir()
 827  */
 828 static void opendir_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 829 {
 830         struct sync_cb_data *cb_data = private_data;
 831         struct nfsdir *dir, **nfsdir;
 832
 833         cb_data->is_finished = 1;
 834         cb_data->status = status;
 835
 836         if (status < 0) {
 837                 nfs_set_error(nfs, "opendir call failed with \"%s\"", (char *)data);
 838                 return;
 839         }
 840
 841         dir     = data;
 842         nfsdir  = cb_data->return_data;
 843         *nfsdir = dir;
 844 }
 845
 846 int nfs_opendir(struct nfs_context *nfs, const char *path, struct nfsdir **nfsdir)
 847 {
 848         struct sync_cb_data cb_data;
 849
 850         cb_data.is_finished = 0;
 851         cb_data.return_data = nfsdir;
 852
 853         if (nfs_opendir_async(nfs, path, opendir_cb, &cb_data) != 0) {
 854                 nfs_set_error(nfs, "nfs_opendir_async failed");
 855                 return -1;
 856         }
 857
 858         wait_for_nfs_reply(nfs, &cb_data);
 859
 860         return cb_data.status;
 861 }
 862
 863
 864 /*
 865  * lseek()
 866  */
 867 static void lseek_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 868 {
 869         struct sync_cb_data *cb_data = private_data;
 870
 871         cb_data->is_finished = 1;
 872         cb_data->status = status;
 873
 874         if (status < 0) {
 875                 nfs_set_error(nfs, "lseek call failed with \"%s\"", (char *)data);
 876                 return;
 877         }
 878
 879         if (cb_data->return_data != NULL) {
 880                 memcpy(cb_data->return_data, data, sizeof(uint64_t));
 881         }
 882 }
 883
 884 int nfs_lseek(struct nfs_context *nfs, struct nfsfh *nfsfh, int64_t offset, int whence, uint64_t *current_offset)
 885 {
 886         struct sync_cb_data cb_data;
 887
 888         cb_data.is_finished = 0;
 889         cb_data.return_data = current_offset;
 890
 891         if (nfs_lseek_async(nfs, nfsfh, offset, whence, lseek_cb, &cb_data) != 0) {
 892                 nfs_set_error(nfs, "nfs_lseek_async failed");
 893                 return -1;
 894         }
 895
 896         wait_for_nfs_reply(nfs, &cb_data);
 897
 898         return cb_data.status;
 899 }
 900
 901
 902
 903 /*
 904  * statvfs()
 905  */
 906 static void statvfs_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 907 {
 908         struct sync_cb_data *cb_data = private_data;
 909
 910         cb_data->is_finished = 1;
 911         cb_data->status = status;
 912
 913         if (status < 0) {
 914                 nfs_set_error(nfs, "statvfs call failed with \"%s\"", (char *)data);
 915                 return;
 916         }
 917
 918         memcpy(cb_data->return_data, data, sizeof(struct statvfs));
 919 }
 920
 921 int nfs_statvfs(struct nfs_context *nfs, const char *path, struct statvfs *svfs)
 922 {
 923         struct sync_cb_data cb_data;
 924
 925         cb_data.is_finished = 0;
 926         cb_data.return_data = svfs;
 927
 928         if (nfs_statvfs_async(nfs, path, statvfs_cb, &cb_data) != 0) {
 929                 nfs_set_error(nfs, "nfs_statvfs_async failed");
 930                 return -1;
 931         }
 932
 933         wait_for_nfs_reply(nfs, &cb_data);
 934
 935         return cb_data.status;
 936 }
 937
 938
 939
 940
 941
 942 /*
 943  * readlink()
 944  */
 945 static void readlink_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 946 {
 947         struct sync_cb_data *cb_data = private_data;
 948
 949         cb_data->is_finished = 1;
 950         cb_data->status = status;
 951
 952         if (status < 0) {
 953                 nfs_set_error(nfs, "readlink call failed with \"%s\"", (char *)data);
 954                 return;
 955         }
 956
 957         if (strlen(data) > (size_t)cb_data->return_int) {
 958                 nfs_set_error(nfs, "Too small buffer for readlink");
 959                 cb_data->status = -ENAMETOOLONG;
 960                 return;
 961         }
 962
 963         memcpy(cb_data->return_data, data, strlen(data)+1);
 964 }
 965
 966 int nfs_readlink(struct nfs_context *nfs, const char *path, char *buf, int bufsize)
 967 {
 968         struct sync_cb_data cb_data;
 969
 970         cb_data.is_finished = 0;
 971         cb_data.return_data = buf;
 972         cb_data.return_int  = bufsize;
 973
 974         if (nfs_readlink_async(nfs, path, readlink_cb, &cb_data) != 0) {
 975                 nfs_set_error(nfs, "nfs_readlink_async failed");
 976                 return -1;
 977         }
 978
 979         wait_for_nfs_reply(nfs, &cb_data);
 980
 981         return cb_data.status;
 982 }
 983
 984
 985
 986 /*
 987  * chmod()
 988  */
 989 static void chmod_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 990 {
 991         struct sync_cb_data *cb_data = private_data;
 992
 993         cb_data->is_finished = 1;
 994         cb_data->status = status;
 995
 996         if (status < 0) {
 997                 nfs_set_error(nfs, "chmod call failed with \"%s\"", (char *)data);
 998                 return;
 999         }
1000 }
1001
1002 int nfs_chmod(struct nfs_context *nfs, const char *path, int mode)
1003 {
1004         struct sync_cb_data cb_data;
1005
1006         cb_data.is_finished = 0;
1007
1008         if (nfs_chmod_async(nfs, path, mode, chmod_cb, &cb_data) != 0) {
1009                 nfs_set_error(nfs, "nfs_chmod_async failed");
1010                 return -1;
1011         }
1012
1013         wait_for_nfs_reply(nfs, &cb_data);
1014
1015         return cb_data.status;
1016 }
1017
1018
1019
1020
1021 /*
1022  * fchmod()
1023  */
1024 static void fchmod_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1025 {
1026         struct sync_cb_data *cb_data = private_data;
1027
1028         cb_data->is_finished = 1;
1029         cb_data->status = status;
1030
1031         if (status < 0) {
1032                 nfs_set_error(nfs, "fchmod call failed with \"%s\"", (char *)data);
1033                 return;
1034         }
1035 }
1036
1037 int nfs_fchmod(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode)
1038 {
1039         struct sync_cb_data cb_data;
1040
1041         cb_data.is_finished = 0;
1042
1043         if (nfs_fchmod_async(nfs, nfsfh, mode, fchmod_cb, &cb_data) != 0) {
1044                 nfs_set_error(nfs, "nfs_fchmod_async failed");
1045                 return -1;
1046         }
1047
1048         wait_for_nfs_reply(nfs, &cb_data);
1049
1050         return cb_data.status;
1051 }
1052
1053
1054
1055
1056 /*
1057  * chown()
1058  */
1059 static void chown_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1060 {
1061         struct sync_cb_data *cb_data = private_data;
1062
1063         cb_data->is_finished = 1;
1064         cb_data->status = status;
1065
1066         if (status < 0) {
1067                 nfs_set_error(nfs, "chown call failed with \"%s\"", (char *)data);
1068                 return;
1069         }
1070 }
1071
1072 int nfs_chown(struct nfs_context *nfs, const char *path, int uid, int gid)
1073 {
1074         struct sync_cb_data cb_data;
1075
1076         cb_data.is_finished = 0;
1077
1078         if (nfs_chown_async(nfs, path, uid, gid, chown_cb, &cb_data) != 0) {
1079                 nfs_set_error(nfs, "nfs_chown_async failed");
1080                 return -1;
1081         }
1082
1083         wait_for_nfs_reply(nfs, &cb_data);
1084
1085         return cb_data.status;
1086 }
1087
1088 /*
1089  * lchown()
1090  */
1091 int nfs_lchown(struct nfs_context *nfs, const char *path, int uid, int gid)
1092 {
1093         struct sync_cb_data cb_data;
1094
1095         cb_data.is_finished = 0;
1096
1097         if (nfs_lchown_async(nfs, path, uid, gid, chown_cb, &cb_data) != 0) {
1098                 nfs_set_error(nfs, "nfs_lchown_async failed");
1099                 return -1;
1100         }
1101
1102         wait_for_nfs_reply(nfs, &cb_data);
1103
1104         return cb_data.status;
1105 }
1106
1107 /*
1108  * fchown()
1109  */
1110 static void fchown_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1111 {
1112         struct sync_cb_data *cb_data = private_data;
1113
1114         cb_data->is_finished = 1;
1115         cb_data->status = status;
1116
1117         if (status < 0) {
1118                 nfs_set_error(nfs, "fchown call failed with \"%s\"", (char *)data);
1119                 return;
1120         }
1121 }
1122
1123 int nfs_fchown(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid)
1124 {
1125         struct sync_cb_data cb_data;
1126
1127         cb_data.is_finished = 0;
1128
1129         if (nfs_fchown_async(nfs, nfsfh, uid, gid, fchown_cb, &cb_data) != 0) {
1130                 nfs_set_error(nfs, "nfs_fchown_async failed");
1131                 return -1;
1132         }
1133
1134         wait_for_nfs_reply(nfs, &cb_data);
1135
1136         return cb_data.status;
1137 }
1138
1139
1140
1141 /*
1142  * utimes()
1143  */
1144 static void utimes_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1145 {
1146         struct sync_cb_data *cb_data = private_data;
1147
1148         cb_data->is_finished = 1;
1149         cb_data->status = status;
1150
1151         if (status < 0) {
1152                 nfs_set_error(nfs, "utimes call failed with \"%s\"", (char *)data);
1153                 return;
1154         }
1155 }
1156
1157 int nfs_utimes(struct nfs_context *nfs, const char *path, struct timeval *times)
1158 {
1159         struct sync_cb_data cb_data;
1160
1161         cb_data.is_finished = 0;
1162
1163         if (nfs_utimes_async(nfs, path, times, utimes_cb, &cb_data) != 0) {
1164                 nfs_set_error(nfs, "nfs_utimes_async failed");
1165                 return -1;
1166         }
1167
1168         wait_for_nfs_reply(nfs, &cb_data);
1169
1170         return cb_data.status;
1171 }
1172
1173
1174
1175 /*
1176  * utime()
1177  */
1178 static void utime_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1179 {
1180         struct sync_cb_data *cb_data = private_data;
1181
1182         cb_data->is_finished = 1;
1183         cb_data->status = status;
1184
1185         if (status < 0) {
1186                 nfs_set_error(nfs, "utime call failed with \"%s\"", (char *)data);
1187                 return;
1188         }
1189 }
1190
1191 int nfs_utime(struct nfs_context *nfs, const char *path, struct utimbuf *times)
1192 {
1193         struct sync_cb_data cb_data;
1194
1195         cb_data.is_finished = 0;
1196
1197         if (nfs_utime_async(nfs, path, times, utime_cb, &cb_data) != 0) {
1198                 nfs_set_error(nfs, "nfs_utimes_async failed");
1199                 return -1;
1200         }
1201
1202         wait_for_nfs_reply(nfs, &cb_data);
1203
1204         return cb_data.status;
1205 }
1206
1207
1208
1209
1210 /*
1211  * access()
1212  */
1213 static void access_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1214 {
1215         struct sync_cb_data *cb_data = private_data;
1216
1217         cb_data->is_finished = 1;
1218         cb_data->status = status;
1219
1220         if (status < 0) {
1221                 nfs_set_error(nfs, "access call failed with \"%s\"", (char *)data);
1222                 return;
1223         }
1224 }
1225
1226 int nfs_access(struct nfs_context *nfs, const char *path, int mode)
1227 {
1228         struct sync_cb_data cb_data;
1229
1230         cb_data.is_finished = 0;
1231
1232         if (nfs_access_async(nfs, path, mode, access_cb, &cb_data) != 0) {
1233                 nfs_set_error(nfs, "nfs_access_async failed");
1234                 return -1;
1235         }
1236
1237         wait_for_nfs_reply(nfs, &cb_data);
1238
1239         return cb_data.status;
1240 }
1241
1242
1243
1244 /*
1245  * symlink()
1246  */
1247 static void symlink_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1248 {
1249         struct sync_cb_data *cb_data = private_data;
1250
1251         cb_data->is_finished = 1;
1252         cb_data->status = status;
1253
1254         if (status < 0) {
1255                 nfs_set_error(nfs, "symlink call failed with \"%s\"", (char *)data);
1256                 return;
1257         }
1258 }
1259
1260 int nfs_symlink(struct nfs_context *nfs, const char *oldpath, const char *newpath)
1261 {
1262         struct sync_cb_data cb_data;
1263
1264         cb_data.is_finished = 0;
1265
1266         if (nfs_symlink_async(nfs, oldpath, newpath, symlink_cb, &cb_data) != 0) {
1267                 nfs_set_error(nfs, "nfs_symlink_async failed");
1268                 return -1;
1269         }
1270
1271         wait_for_nfs_reply(nfs, &cb_data);
1272
1273         return cb_data.status;
1274 }
1275
1276
1277
1278 /*
1279  * rename()
1280  */
1281 static void rename_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1282 {
1283         struct sync_cb_data *cb_data = private_data;
1284
1285         cb_data->is_finished = 1;
1286         cb_data->status = status;
1287
1288         if (status < 0) {
1289                 nfs_set_error(nfs, "rename call failed with \"%s\"", (char *)data);
1290                 return;
1291         }
1292 }
1293
1294 int nfs_rename(struct nfs_context *nfs, const char *oldpath, const char *newpath)
1295 {
1296         struct sync_cb_data cb_data;
1297
1298         cb_data.is_finished = 0;
1299
1300         if (nfs_rename_async(nfs, oldpath, newpath, rename_cb, &cb_data) != 0) {
1301                 nfs_set_error(nfs, "nfs_rename_async failed");
1302                 return -1;
1303         }
1304
1305         wait_for_nfs_reply(nfs, &cb_data);
1306
1307         return cb_data.status;
1308 }
1309
1310
1311
1312 /*
1313  * link()
1314  */
1315 static void link_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1316 {
1317         struct sync_cb_data *cb_data = private_data;
1318
1319         cb_data->is_finished = 1;
1320         cb_data->status = status;
1321
1322         if (status < 0) {
1323                 nfs_set_error(nfs, "link call failed with \"%s\"", (char *)data);
1324                 return;
1325         }
1326 }
1327
1328 int nfs_link(struct nfs_context *nfs, const char *oldpath, const char *newpath)
1329 {
1330         struct sync_cb_data cb_data;
1331
1332         cb_data.is_finished = 0;
1333
1334         if (nfs_link_async(nfs, oldpath, newpath, link_cb, &cb_data) != 0) {
1335                 nfs_set_error(nfs, "nfs_link_async failed");
1336                 return -1;
1337         }
1338
1339         wait_for_nfs_reply(nfs, &cb_data);
1340
1341         return cb_data.status;
1342 }
1343
1344 void mount_getexports_cb(struct rpc_context *mount_context, int status, void *data, void *private_data)
1345 {
1346         struct sync_cb_data *cb_data = private_data;
1347         exports export;
1348
1349         assert(mount_context->magic == RPC_CONTEXT_MAGIC);
1350
1351         cb_data->is_finished = 1;
1352         cb_data->status = status;
1353         cb_data->return_data = NULL;
1354
1355         if (status != 0) {
1356                 rpc_set_error(mount_context, "mount/export call failed with \"%s\"", (char *)data);
1357                 return;
1358         }
1359
1360         export = *(exports *)data;
1361         while (export != NULL) {
1362                 exports new_export;
1363
1364                 new_export = malloc(sizeof(*new_export));
1365                 memset(new_export, 0, sizeof(*new_export));
1366                 new_export->ex_dir  = strdup(export->ex_dir);
1367                 new_export->ex_next = cb_data->return_data;
1368
1369                 cb_data->return_data = new_export;
1370
1371                 export = export->ex_next;
1372         }
1373 }
1374
1375 struct exportnode *mount_getexports(const char *server)
1376 {
1377         struct sync_cb_data cb_data;
1378         struct rpc_context *rpc;
1379
1380
1381         cb_data.is_finished = 0;
1382         cb_data.return_data = NULL;
1383
1384         rpc = rpc_init_context();
1385         if (mount_getexports_async(rpc, server, mount_getexports_cb, &cb_data) != 0) {
1386                 rpc_destroy_context(rpc);
1387                 return NULL;
1388         }
1389
1390         wait_for_reply(rpc, &cb_data);
1391         rpc_destroy_context(rpc);
1392
1393         return cb_data.return_data;
1394 }
1395
1396 void mount_free_export_list(struct exportnode *exports)
1397 {
1398         struct exportnode *tmp;
1399
1400         while ((tmp = exports)) {
1401                 exports = exports->ex_next;
1402                 free(tmp->ex_dir);
1403                 free(tmp);
1404         }
1405 }
1406
1407
1408
1409 void free_nfs_srvr_list(struct nfs_server_list *srv)
1410 {
1411         while (srv != NULL) {
1412                 struct nfs_server_list *next = srv->next;
1413
1414                 free(srv->addr);
1415                 free(srv);
1416                 srv = next;
1417         }
1418 }
1419
1420 struct nfs_list_data {
1421        int status;
1422        struct nfs_server_list *srvrs;
1423 };
1424
1425 void callit_cb(struct rpc_context *rpc, int status, void *data _U_, void *private_data)
1426 {
1427         struct nfs_list_data *srv_data = private_data;
1428         struct sockaddr *sin;
1429         char hostdd[16];
1430         struct nfs_server_list *srvr;
1431
1432         assert(rpc->magic == RPC_CONTEXT_MAGIC);
1433
1434         if (status == RPC_STATUS_CANCEL) {
1435                 return;
1436         }
1437         if (status != 0) {
1438                 srv_data->status = -1;
1439                 return;
1440         }
1441
1442         sin = rpc_get_recv_sockaddr(rpc);
1443         if (sin == NULL) {
1444                 rpc_set_error(rpc, "failed to get sockaddr in CALLIT callback");
1445                 srv_data->status = -1;
1446                 return;
1447         }
1448
1449         if (getnameinfo(sin, sizeof(struct sockaddr_in), &hostdd[0], sizeof(hostdd), NULL, 0, NI_NUMERICHOST) < 0) {
1450                 rpc_set_error(rpc, "getnameinfo failed in CALLIT callback");
1451                 srv_data->status = -1;
1452                 return;
1453         }
1454
1455         /* check for dupes */
1456         for (srvr = srv_data->srvrs; srvr; srvr = srvr->next) {
1457                 if (!strcmp(hostdd, srvr->addr)) {
1458                         return;
1459                 }
1460         }
1461
1462         srvr = malloc(sizeof(struct nfs_server_list));
1463         if (srvr == NULL) {
1464                 rpc_set_error(rpc, "Malloc failed when allocating server structure");
1465                 srv_data->status = -1;
1466                 return;
1467         }
1468
1469         srvr->addr = strdup(hostdd);
1470         if (srvr->addr == NULL) {
1471                 rpc_set_error(rpc, "Strdup failed when allocating server structure");
1472                 free(srvr);
1473                 srv_data->status = -1;
1474                 return;
1475         }
1476
1477         srvr->next = srv_data->srvrs;
1478         srv_data->srvrs = srvr;
1479 }
1480
1481 #ifdef WIN32
1482
1483 static int send_nfsd_probes(struct rpc_context *rpc, INTERFACE_INFO *InterfaceList, int numIfs, struct nfs_list_data *data)
1484 {
1485   int i=0;
1486
1487   assert(rpc->magic == RPC_CONTEXT_MAGIC);
1488
1489   for(i = 0; i < numIfs; i++)
1490   {
1491     SOCKADDR *pAddress;
1492     char bcdd[16];
1493     unsigned long nFlags = 0;
1494
1495     pAddress = (SOCKADDR *) & (InterfaceList[i].iiBroadcastAddress);
1496
1497     if(pAddress->sa_family != AF_INET)
1498       continue;
1499
1500     nFlags = InterfaceList[i].iiFlags;
1501
1502     if (!(nFlags & IFF_UP))
1503     {
1504       continue;
1505     }
1506
1507     if (nFlags & IFF_LOOPBACK)
1508     {
1509       continue;
1510     }
1511
1512     if (!(nFlags & IFF_BROADCAST))
1513     {
1514       continue;
1515     }
1516
1517     if (getnameinfo(pAddress, sizeof(struct sockaddr_in), &bcdd[0], sizeof(bcdd), NULL, 0, NI_NUMERICHOST) < 0)
1518     {
1519       continue;
1520     }
1521
1522     if (rpc_set_udp_destination(rpc, bcdd, 111, 1) < 0)
1523     {
1524       return -1;
1525     }
1526
1527     if (rpc_pmap2_callit_async(rpc, MOUNT_PROGRAM, 2, 0, NULL, 0, callit_cb, data) < 0)
1528     {
1529       return -1;
1530     }
1531   }
1532   return 0;
1533 }
1534
1535 struct nfs_server_list *nfs_find_local_servers(void)
1536 {
1537   struct rpc_context *rpc;
1538   struct nfs_list_data data = {0, NULL};
1539   struct timeval tv_start, tv_current;
1540   int loop;
1541   struct pollfd pfd;
1542   INTERFACE_INFO InterfaceList[20];
1543   unsigned long nBytesReturned;
1544   int nNumInterfaces = 0;
1545
1546   rpc = rpc_init_udp_context();
1547   if (rpc == NULL)
1548   {
1549     return NULL;
1550   }
1551
1552   if (rpc_bind_udp(rpc, "0.0.0.0", 0) < 0)
1553   {
1554     rpc_destroy_context(rpc);
1555     return NULL;
1556   }
1557
1558   if (WSAIoctl(rpc_get_fd(rpc), SIO_GET_INTERFACE_LIST, 0, 0, &InterfaceList, sizeof(InterfaceList), &nBytesReturned, 0, 0) == SOCKET_ERROR)
1559   {
1560     return NULL;
1561   }
1562
1563   nNumInterfaces = nBytesReturned / sizeof(INTERFACE_INFO);
1564
1565   for (loop=0; loop<3; loop++)
1566   {
1567     if (send_nfsd_probes(rpc, InterfaceList, nNumInterfaces, &data) != 0)
1568     {
1569       rpc_destroy_context(rpc);
1570       return NULL;
1571     }
1572
1573     win32_gettimeofday(&tv_start, NULL);
1574     for(;;)
1575     {
1576       int mpt;
1577
1578       pfd.fd = rpc_get_fd(rpc);
1579       pfd.events = rpc_which_events(rpc);
1580
1581       win32_gettimeofday(&tv_current, NULL);
1582       mpt = 1000
1583       -    (tv_current.tv_sec *1000 + tv_current.tv_usec / 1000)
1584       +    (tv_start.tv_sec *1000 + tv_start.tv_usec / 1000);
1585
1586       if (poll(&pfd, 1, mpt) < 0)
1587       {
1588         free_nfs_srvr_list(data.srvrs);
1589         rpc_destroy_context(rpc);
1590         return NULL;
1591       }
1592       if (pfd.revents == 0)
1593       {
1594         break;
1595       }
1596
1597       if (rpc_service(rpc, pfd.revents) < 0)
1598       {
1599         break;
1600       }
1601     }
1602   }
1603
1604   rpc_destroy_context(rpc);
1605
1606   if (data.status != 0)
1607   {
1608     free_nfs_srvr_list(data.srvrs);
1609     return NULL;
1610   }
1611   return data.srvrs;
1612 }
1613 #else
1614
1615 static int send_nfsd_probes(struct rpc_context *rpc, struct ifconf *ifc, struct nfs_list_data *data)
1616 {
1617         char *ptr;
1618
1619         assert(rpc->magic == RPC_CONTEXT_MAGIC);
1620
1621         for (ptr =(char *)(ifc->ifc_buf); ptr < (char *)(ifc->ifc_buf) + ifc->ifc_len; ) {
1622                 struct ifreq *ifr;
1623                 char bcdd[16];
1624
1625                 ifr = (struct ifreq *)ptr;
1626 #ifdef HAVE_SOCKADDR_LEN
1627                 if (ifr->ifr_addr.sa_len > sizeof(struct sockaddr)) {
1628                         ptr += sizeof(ifr->ifr_name) + ifr->ifr_addr.sa_len;
1629                 } else {
1630                         ptr += sizeof(ifr->ifr_name) + sizeof(struct sockaddr);
1631                 }
1632 #else
1633                 ptr += sizeof(struct ifreq);
1634 #endif
1635
1636                 if (ifr->ifr_addr.sa_family != AF_INET) {
1637                         continue;
1638                 }
1639                 if (ioctl(rpc_get_fd(rpc), SIOCGIFFLAGS, ifr) < 0) {
1640                         return -1;
1641                 }
1642                 if (!(ifr->ifr_flags & IFF_UP)) {
1643                         continue;
1644                 }
1645                 if (ifr->ifr_flags & IFF_LOOPBACK) {
1646                         continue;
1647                 }
1648                 if (!(ifr->ifr_flags & IFF_BROADCAST)) {
1649                         continue;
1650                 }
1651                 if (ioctl(rpc_get_fd(rpc), SIOCGIFBRDADDR, ifr) < 0) {
1652                         continue;
1653                 }
1654                 if (getnameinfo(&ifr->ifr_broadaddr, sizeof(struct sockaddr_in), &bcdd[0], sizeof(bcdd), NULL, 0, NI_NUMERICHOST) < 0) {
1655                         continue;
1656                 }
1657                 if (rpc_set_udp_destination(rpc, bcdd, 111, 1) < 0) {
1658                         return -1;
1659                 }
1660
1661                 if (rpc_pmap2_callit_async(rpc, MOUNT_PROGRAM, 2, 0, NULL, 0, callit_cb, data) < 0) {
1662                         return -1;
1663                 }
1664         }
1665
1666         return 0;
1667 }
1668
1669 struct nfs_server_list *nfs_find_local_servers(void)
1670 {
1671         struct rpc_context *rpc;
1672         struct nfs_list_data data = {0, NULL};
1673         struct timeval tv_start, tv_current;
1674         struct ifconf ifc;
1675         int size, loop;
1676         struct pollfd pfd;
1677
1678         rpc = rpc_init_udp_context();
1679         if (rpc == NULL) {
1680                 return NULL;
1681         }
1682
1683         if (rpc_bind_udp(rpc, "0.0.0.0", 0) < 0) {
1684                 rpc_destroy_context(rpc);
1685                 return NULL;
1686         }
1687
1688
1689         /* get list of all interfaces */
1690         size = sizeof(struct ifreq);
1691         ifc.ifc_buf = NULL;
1692         ifc.ifc_len = size;
1693
1694         while(ifc.ifc_len > (size - sizeof(struct ifreq))) {
1695                 size *= 2;
1696
1697                 free(ifc.ifc_buf);
1698                 ifc.ifc_len = size;
1699                 ifc.ifc_buf = malloc(size);
1700                 memset(ifc.ifc_buf, 0, size);
1701                 if (ioctl(rpc_get_fd(rpc), SIOCGIFCONF, (caddr_t)&ifc) < 0) {
1702                         rpc_destroy_context(rpc);
1703                         free(ifc.ifc_buf);
1704                         return NULL;
1705                 }
1706         }
1707
1708         for (loop=0; loop<3; loop++) {
1709                 if (send_nfsd_probes(rpc, &ifc, &data) != 0) {
1710                         rpc_destroy_context(rpc);
1711                         free(ifc.ifc_buf);
1712                         return NULL;
1713                 }
1714
1715                 gettimeofday(&tv_start, NULL);
1716                 for(;;) {
1717                         int mpt;
1718
1719                         pfd.fd = rpc_get_fd(rpc);
1720                         pfd.events = rpc_which_events(rpc);
1721
1722                         gettimeofday(&tv_current, NULL);
1723                         mpt = 1000
1724                         -    (tv_current.tv_sec *1000 + tv_current.tv_usec / 1000)
1725                         +    (tv_start.tv_sec *1000 + tv_start.tv_usec / 1000);
1726
1727                         if (poll(&pfd, 1, mpt) < 0) {
1728                                 free_nfs_srvr_list(data.srvrs);
1729                                 rpc_destroy_context(rpc);
1730                                 return NULL;
1731                         }
1732                         if (pfd.revents == 0) {
1733                                 break;
1734                         }
1735
1736                         if (rpc_service(rpc, pfd.revents) < 0) {
1737                                 break;
1738                         }
1739                 }
1740         }
1741
1742         free(ifc.ifc_buf);
1743         rpc_destroy_context(rpc);
1744
1745         if (data.status != 0) {
1746                 free_nfs_srvr_list(data.srvrs);
1747                 return NULL;
1748         }
1749         return data.srvrs;
1750 }
1751 #endif//WIN32