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