lib/libnfs-sync.c

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