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