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  * fstat64()
 458  */
 459 int nfs_fstat64(struct nfs_context *nfs, struct nfsfh *nfsfh, struct nfs_stat_64 *st)
 460 {
 461         struct sync_cb_data cb_data;
 462
 463         cb_data.is_finished = 0;
 464         cb_data.return_data = st;
 465
 466         if (nfs_fstat64_async(nfs, nfsfh, stat64_cb, &cb_data) != 0) {
 467                 nfs_set_error(nfs, "nfs_fstat64_async failed");
 468                 return -1;
 469         }
 470
 471         wait_for_nfs_reply(nfs, &cb_data);
 472
 473         return cb_data.status;
 474 }
 475
 476
 477 /*
 478  * pwrite()
 479  */
 480 static void pwrite_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 481 {
 482         struct sync_cb_data *cb_data = private_data;
 483         cb_data->is_finished = 1;
 484         cb_data->status = status;
 485
 486         if (status < 0)
 487                 nfs_set_error(nfs, "%s call failed with \"%s\"", cb_data->call, (char *)data);
 488 }
 489
 490 int nfs_pwrite(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, char *buf)
 491 {
 492         struct sync_cb_data cb_data;
 493
 494         cb_data.is_finished = 0;
 495         cb_data.call = "pwrite";
 496
 497         if (nfs_pwrite_async(nfs, nfsfh, offset, count, buf, pwrite_cb, &cb_data) != 0) {
 498                 nfs_set_error(nfs, "nfs_pwrite_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  * write()
 509  */
 510 int nfs_write(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, char *buf)
 511 {
 512         struct sync_cb_data cb_data;
 513
 514         cb_data.is_finished = 0;
 515         cb_data.call = "write";
 516
 517         if (nfs_write_async(nfs, nfsfh, count, buf, pwrite_cb, &cb_data) != 0) {
 518                 nfs_set_error(nfs, "nfs_write_async failed");
 519                 return -1;
 520         }
 521
 522         wait_for_nfs_reply(nfs, &cb_data);
 523
 524         return cb_data.status;
 525 }
 526
 527
 528 /*
 529  * fsync()
 530  */
 531 static void fsync_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 532 {
 533         struct sync_cb_data *cb_data = private_data;
 534         cb_data->is_finished = 1;
 535         cb_data->status = status;
 536
 537         if (status < 0) {
 538                 nfs_set_error(nfs, "fsync call failed with \"%s\"", (char *)data);
 539                 return;
 540         }
 541 }
 542
 543 int nfs_fsync(struct nfs_context *nfs, struct nfsfh *nfsfh)
 544 {
 545         struct sync_cb_data cb_data;
 546
 547         cb_data.is_finished = 0;
 548
 549         if (nfs_fsync_async(nfs, nfsfh, fsync_cb, &cb_data) != 0) {
 550                 nfs_set_error(nfs, "nfs_fsync_async failed");
 551                 return -1;
 552         }
 553
 554         wait_for_nfs_reply(nfs, &cb_data);
 555
 556         return cb_data.status;
 557 }
 558
 559
 560
 561
 562 /*
 563  * ftruncate()
 564  */
 565 static void ftruncate_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 566 {
 567         struct sync_cb_data *cb_data = private_data;
 568         cb_data->is_finished = 1;
 569         cb_data->status = status;
 570
 571         if (status < 0) {
 572                 nfs_set_error(nfs, "ftruncate call failed with \"%s\"", (char *)data);
 573                 return;
 574         }
 575 }
 576
 577 int nfs_ftruncate(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t length)
 578 {
 579         struct sync_cb_data cb_data;
 580
 581         cb_data.is_finished = 0;
 582
 583         if (nfs_ftruncate_async(nfs, nfsfh, length, ftruncate_cb, &cb_data) != 0) {
 584                 nfs_set_error(nfs, "nfs_ftruncate_async failed");
 585                 return -1;
 586         }
 587
 588         wait_for_nfs_reply(nfs, &cb_data);
 589
 590         return cb_data.status;
 591 }
 592
 593
 594
 595 /*
 596  * truncate()
 597  */
 598 static void truncate_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 599 {
 600         struct sync_cb_data *cb_data = private_data;
 601         cb_data->is_finished = 1;
 602         cb_data->status = status;
 603
 604         if (status < 0) {
 605                 nfs_set_error(nfs, "truncate call failed with \"%s\"", (char *)data);
 606                 return;
 607         }
 608 }
 609
 610 int nfs_truncate(struct nfs_context *nfs, const char *path, uint64_t length)
 611 {
 612         struct sync_cb_data cb_data;
 613
 614         cb_data.is_finished = 0;
 615
 616         if (nfs_truncate_async(nfs, path, length, truncate_cb, &cb_data) != 0) {
 617                 nfs_set_error(nfs, "nfs_ftruncate_async failed");
 618                 return -1;
 619         }
 620
 621         wait_for_nfs_reply(nfs, &cb_data);
 622
 623         return cb_data.status;
 624 }
 625
 626
 627
 628
 629
 630 /*
 631  * mkdir()
 632  */
 633 static void mkdir_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 634 {
 635         struct sync_cb_data *cb_data = private_data;
 636         cb_data->is_finished = 1;
 637         cb_data->status = status;
 638
 639         if (status < 0) {
 640                 nfs_set_error(nfs, "mkdir call failed with \"%s\"", (char *)data);
 641                 return;
 642         }
 643 }
 644
 645 int nfs_mkdir(struct nfs_context *nfs, const char *path)
 646 {
 647         struct sync_cb_data cb_data;
 648
 649         cb_data.is_finished = 0;
 650
 651         if (nfs_mkdir_async(nfs, path, mkdir_cb, &cb_data) != 0) {
 652                 nfs_set_error(nfs, "nfs_mkdir_async failed");
 653                 return -1;
 654         }
 655
 656         wait_for_nfs_reply(nfs, &cb_data);
 657
 658         return cb_data.status;
 659 }
 660
 661
 662
 663
 664
 665 /*
 666  * rmdir()
 667  */
 668 static void rmdir_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 669 {
 670         struct sync_cb_data *cb_data = private_data;
 671         cb_data->is_finished = 1;
 672         cb_data->status = status;
 673
 674         if (status < 0) {
 675                 nfs_set_error(nfs, "rmdir call failed with \"%s\"", (char *)data);
 676                 return;
 677         }
 678 }
 679
 680 int nfs_rmdir(struct nfs_context *nfs, const char *path)
 681 {
 682         struct sync_cb_data cb_data;
 683
 684         cb_data.is_finished = 0;
 685
 686         if (nfs_rmdir_async(nfs, path, rmdir_cb, &cb_data) != 0) {
 687                 nfs_set_error(nfs, "nfs_rmdir_async failed");
 688                 return -1;
 689         }
 690
 691         wait_for_nfs_reply(nfs, &cb_data);
 692
 693         return cb_data.status;
 694 }
 695
 696
 697
 698 /*
 699  * creat()
 700  */
 701 static void creat_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 702 {
 703         struct sync_cb_data *cb_data = private_data;
 704         struct nfsfh *fh, **nfsfh;
 705
 706         cb_data->is_finished = 1;
 707         cb_data->status = status;
 708
 709         if (status < 0) {
 710                 nfs_set_error(nfs, "creat call failed with \"%s\"", (char *)data);
 711                 return;
 712         }
 713
 714         fh    = data;
 715         nfsfh = cb_data->return_data;
 716         *nfsfh = fh;
 717 }
 718
 719 int nfs_create(struct nfs_context *nfs, const char *path, int flags, int mode, struct nfsfh **nfsfh)
 720 {
 721         struct sync_cb_data cb_data;
 722
 723         cb_data.is_finished = 0;
 724         cb_data.return_data = nfsfh;
 725
 726         if (nfs_create_async(nfs, path, flags, mode, creat_cb, &cb_data) != 0) {
 727                 nfs_set_error(nfs, "nfs_create_async failed");
 728                 return -1;
 729         }
 730
 731         wait_for_nfs_reply(nfs, &cb_data);
 732
 733         return cb_data.status;
 734 }
 735
 736 int nfs_creat(struct nfs_context *nfs, const char *path, int mode, struct nfsfh **nfsfh)
 737 {
 738         return nfs_create(nfs, path, 0, mode, nfsfh);
 739 }
 740
 741 /*
 742  * mknod()
 743  */
 744 static void mknod_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 745 {
 746         struct sync_cb_data *cb_data = private_data;
 747
 748         cb_data->is_finished = 1;
 749         cb_data->status = status;
 750
 751         if (status < 0) {
 752                 nfs_set_error(nfs, "mknod call failed with \"%s\"", (char *)data);
 753                 return;
 754         }
 755 }
 756
 757 int nfs_mknod(struct nfs_context *nfs, const char *path, int mode, int dev)
 758 {
 759         struct sync_cb_data cb_data;
 760
 761         cb_data.is_finished = 0;
 762
 763         if (nfs_mknod_async(nfs, path, mode, dev, mknod_cb, &cb_data) != 0) {
 764                 nfs_set_error(nfs, "nfs_creat_async failed");
 765                 return -1;
 766         }
 767
 768         wait_for_nfs_reply(nfs, &cb_data);
 769
 770         return cb_data.status;
 771 }
 772
 773
 774 /*
 775  * unlink()
 776  */
 777 static void unlink_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 778 {
 779         struct sync_cb_data *cb_data = private_data;
 780
 781         cb_data->is_finished = 1;
 782         cb_data->status = status;
 783
 784         if (status < 0) {
 785                 nfs_set_error(nfs, "unlink call failed with \"%s\"", (char *)data);
 786                 return;
 787         }
 788 }
 789
 790 int nfs_unlink(struct nfs_context *nfs, const char *path)
 791 {
 792         struct sync_cb_data cb_data;
 793
 794         cb_data.is_finished = 0;
 795
 796         if (nfs_unlink_async(nfs, path, unlink_cb, &cb_data) != 0) {
 797                 nfs_set_error(nfs, "nfs_unlink_async failed");
 798                 return -1;
 799         }
 800
 801         wait_for_nfs_reply(nfs, &cb_data);
 802
 803         return cb_data.status;
 804 }
 805
 806
 807
 808 /*
 809  * opendir()
 810  */
 811 static void opendir_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 812 {
 813         struct sync_cb_data *cb_data = private_data;
 814         struct nfsdir *dir, **nfsdir;
 815
 816         cb_data->is_finished = 1;
 817         cb_data->status = status;
 818
 819         if (status < 0) {
 820                 nfs_set_error(nfs, "opendir call failed with \"%s\"", (char *)data);
 821                 return;
 822         }
 823
 824         dir     = data;
 825         nfsdir  = cb_data->return_data;
 826         *nfsdir = dir;
 827 }
 828
 829 int nfs_opendir(struct nfs_context *nfs, const char *path, struct nfsdir **nfsdir)
 830 {
 831         struct sync_cb_data cb_data;
 832
 833         cb_data.is_finished = 0;
 834         cb_data.return_data = nfsdir;
 835
 836         if (nfs_opendir_async(nfs, path, opendir_cb, &cb_data) != 0) {
 837                 nfs_set_error(nfs, "nfs_opendir_async failed");
 838                 return -1;
 839         }
 840
 841         wait_for_nfs_reply(nfs, &cb_data);
 842
 843         return cb_data.status;
 844 }
 845
 846
 847 /*
 848  * lseek()
 849  */
 850 static void lseek_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 851 {
 852         struct sync_cb_data *cb_data = private_data;
 853
 854         cb_data->is_finished = 1;
 855         cb_data->status = status;
 856
 857         if (status < 0) {
 858                 nfs_set_error(nfs, "lseek call failed with \"%s\"", (char *)data);
 859                 return;
 860         }
 861
 862         if (cb_data->return_data != NULL) {
 863                 memcpy(cb_data->return_data, data, sizeof(uint64_t));
 864         }
 865 }
 866
 867 int nfs_lseek(struct nfs_context *nfs, struct nfsfh *nfsfh, int64_t offset, int whence, uint64_t *current_offset)
 868 {
 869         struct sync_cb_data cb_data;
 870
 871         cb_data.is_finished = 0;
 872         cb_data.return_data = current_offset;
 873
 874         if (nfs_lseek_async(nfs, nfsfh, offset, whence, lseek_cb, &cb_data) != 0) {
 875                 nfs_set_error(nfs, "nfs_lseek_async failed");
 876                 return -1;
 877         }
 878
 879         wait_for_nfs_reply(nfs, &cb_data);
 880
 881         return cb_data.status;
 882 }
 883
 884
 885
 886 /*
 887  * statvfs()
 888  */
 889 static void statvfs_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 890 {
 891         struct sync_cb_data *cb_data = private_data;
 892
 893         cb_data->is_finished = 1;
 894         cb_data->status = status;
 895
 896         if (status < 0) {
 897                 nfs_set_error(nfs, "statvfs call failed with \"%s\"", (char *)data);
 898                 return;
 899         }
 900
 901         memcpy(cb_data->return_data, data, sizeof(struct statvfs));
 902 }
 903
 904 int nfs_statvfs(struct nfs_context *nfs, const char *path, struct statvfs *svfs)
 905 {
 906         struct sync_cb_data cb_data;
 907
 908         cb_data.is_finished = 0;
 909         cb_data.return_data = svfs;
 910
 911         if (nfs_statvfs_async(nfs, path, statvfs_cb, &cb_data) != 0) {
 912                 nfs_set_error(nfs, "nfs_statvfs_async failed");
 913                 return -1;
 914         }
 915
 916         wait_for_nfs_reply(nfs, &cb_data);
 917
 918         return cb_data.status;
 919 }
 920
 921
 922
 923
 924
 925 /*
 926  * readlink()
 927  */
 928 static void readlink_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 929 {
 930         struct sync_cb_data *cb_data = private_data;
 931
 932         cb_data->is_finished = 1;
 933         cb_data->status = status;
 934
 935         if (status < 0) {
 936                 nfs_set_error(nfs, "readlink call failed with \"%s\"", (char *)data);
 937                 return;
 938         }
 939
 940         if (strlen(data) > (size_t)cb_data->return_int) {
 941                 nfs_set_error(nfs, "Too small buffer for readlink");
 942                 cb_data->status = -ENAMETOOLONG;
 943                 return;
 944         }
 945
 946         memcpy(cb_data->return_data, data, strlen(data)+1);
 947 }
 948
 949 int nfs_readlink(struct nfs_context *nfs, const char *path, char *buf, int bufsize)
 950 {
 951         struct sync_cb_data cb_data;
 952
 953         cb_data.is_finished = 0;
 954         cb_data.return_data = buf;
 955         cb_data.return_int  = bufsize;
 956
 957         if (nfs_readlink_async(nfs, path, readlink_cb, &cb_data) != 0) {
 958                 nfs_set_error(nfs, "nfs_readlink_async failed");
 959                 return -1;
 960         }
 961
 962         wait_for_nfs_reply(nfs, &cb_data);
 963
 964         return cb_data.status;
 965 }
 966
 967
 968
 969 /*
 970  * chmod()
 971  */
 972 static void chmod_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 973 {
 974         struct sync_cb_data *cb_data = private_data;
 975
 976         cb_data->is_finished = 1;
 977         cb_data->status = status;
 978
 979         if (status < 0) {
 980                 nfs_set_error(nfs, "chmod call failed with \"%s\"", (char *)data);
 981                 return;
 982         }
 983 }
 984
 985 int nfs_chmod(struct nfs_context *nfs, const char *path, int mode)
 986 {
 987         struct sync_cb_data cb_data;
 988
 989         cb_data.is_finished = 0;
 990
 991         if (nfs_chmod_async(nfs, path, mode, chmod_cb, &cb_data) != 0) {
 992                 nfs_set_error(nfs, "nfs_chmod_async failed");
 993                 return -1;
 994         }
 995
 996         wait_for_nfs_reply(nfs, &cb_data);
 997
 998         return cb_data.status;
 999 }
1000
1001
1002
1003
1004 /*
1005  * fchmod()
1006  */
1007 static void fchmod_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1008 {
1009         struct sync_cb_data *cb_data = private_data;
1010
1011         cb_data->is_finished = 1;
1012         cb_data->status = status;
1013
1014         if (status < 0) {
1015                 nfs_set_error(nfs, "fchmod call failed with \"%s\"", (char *)data);
1016                 return;
1017         }
1018 }
1019
1020 int nfs_fchmod(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode)
1021 {
1022         struct sync_cb_data cb_data;
1023
1024         cb_data.is_finished = 0;
1025
1026         if (nfs_fchmod_async(nfs, nfsfh, mode, fchmod_cb, &cb_data) != 0) {
1027                 nfs_set_error(nfs, "nfs_fchmod_async failed");
1028                 return -1;
1029         }
1030
1031         wait_for_nfs_reply(nfs, &cb_data);
1032
1033         return cb_data.status;
1034 }
1035
1036
1037
1038
1039 /*
1040  * chown()
1041  */
1042 static void chown_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1043 {
1044         struct sync_cb_data *cb_data = private_data;
1045
1046         cb_data->is_finished = 1;
1047         cb_data->status = status;
1048
1049         if (status < 0) {
1050                 nfs_set_error(nfs, "chown call failed with \"%s\"", (char *)data);
1051                 return;
1052         }
1053 }
1054
1055 int nfs_chown(struct nfs_context *nfs, const char *path, int uid, int gid)
1056 {
1057         struct sync_cb_data cb_data;
1058
1059         cb_data.is_finished = 0;
1060
1061         if (nfs_chown_async(nfs, path, uid, gid, chown_cb, &cb_data) != 0) {
1062                 nfs_set_error(nfs, "nfs_chown_async failed");
1063                 return -1;
1064         }
1065
1066         wait_for_nfs_reply(nfs, &cb_data);
1067
1068         return cb_data.status;
1069 }
1070
1071 /*
1072  * lchown()
1073  */
1074 int nfs_lchown(struct nfs_context *nfs, const char *path, int uid, int gid)
1075 {
1076         struct sync_cb_data cb_data;
1077
1078         cb_data.is_finished = 0;
1079
1080         if (nfs_lchown_async(nfs, path, uid, gid, chown_cb, &cb_data) != 0) {
1081                 nfs_set_error(nfs, "nfs_lchown_async failed");
1082                 return -1;
1083         }
1084
1085         wait_for_nfs_reply(nfs, &cb_data);
1086
1087         return cb_data.status;
1088 }
1089
1090 /*
1091  * fchown()
1092  */
1093 static void fchown_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1094 {
1095         struct sync_cb_data *cb_data = private_data;
1096
1097         cb_data->is_finished = 1;
1098         cb_data->status = status;
1099
1100         if (status < 0) {
1101                 nfs_set_error(nfs, "fchown call failed with \"%s\"", (char *)data);
1102                 return;
1103         }
1104 }
1105
1106 int nfs_fchown(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid)
1107 {
1108         struct sync_cb_data cb_data;
1109
1110         cb_data.is_finished = 0;
1111
1112         if (nfs_fchown_async(nfs, nfsfh, uid, gid, fchown_cb, &cb_data) != 0) {
1113                 nfs_set_error(nfs, "nfs_fchown_async failed");
1114                 return -1;
1115         }
1116
1117         wait_for_nfs_reply(nfs, &cb_data);
1118
1119         return cb_data.status;
1120 }
1121
1122
1123
1124 /*
1125  * utimes()
1126  */
1127 static void utimes_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1128 {
1129         struct sync_cb_data *cb_data = private_data;
1130
1131         cb_data->is_finished = 1;
1132         cb_data->status = status;
1133
1134         if (status < 0) {
1135                 nfs_set_error(nfs, "utimes call failed with \"%s\"", (char *)data);
1136                 return;
1137         }
1138 }
1139
1140 int nfs_utimes(struct nfs_context *nfs, const char *path, struct timeval *times)
1141 {
1142         struct sync_cb_data cb_data;
1143
1144         cb_data.is_finished = 0;
1145
1146         if (nfs_utimes_async(nfs, path, times, utimes_cb, &cb_data) != 0) {
1147                 nfs_set_error(nfs, "nfs_utimes_async failed");
1148                 return -1;
1149         }
1150
1151         wait_for_nfs_reply(nfs, &cb_data);
1152
1153         return cb_data.status;
1154 }
1155
1156
1157
1158 /*
1159  * utime()
1160  */
1161 static void utime_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1162 {
1163         struct sync_cb_data *cb_data = private_data;
1164
1165         cb_data->is_finished = 1;
1166         cb_data->status = status;
1167
1168         if (status < 0) {
1169                 nfs_set_error(nfs, "utime call failed with \"%s\"", (char *)data);
1170                 return;
1171         }
1172 }
1173
1174 int nfs_utime(struct nfs_context *nfs, const char *path, struct utimbuf *times)
1175 {
1176         struct sync_cb_data cb_data;
1177
1178         cb_data.is_finished = 0;
1179
1180         if (nfs_utime_async(nfs, path, times, utime_cb, &cb_data) != 0) {
1181                 nfs_set_error(nfs, "nfs_utimes_async failed");
1182                 return -1;
1183         }
1184
1185         wait_for_nfs_reply(nfs, &cb_data);
1186
1187         return cb_data.status;
1188 }
1189
1190
1191
1192
1193 /*
1194  * access()
1195  */
1196 static void access_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1197 {
1198         struct sync_cb_data *cb_data = private_data;
1199
1200         cb_data->is_finished = 1;
1201         cb_data->status = status;
1202
1203         if (status < 0) {
1204                 nfs_set_error(nfs, "access call failed with \"%s\"", (char *)data);
1205                 return;
1206         }
1207 }
1208
1209 int nfs_access(struct nfs_context *nfs, const char *path, int mode)
1210 {
1211         struct sync_cb_data cb_data;
1212
1213         cb_data.is_finished = 0;
1214
1215         if (nfs_access_async(nfs, path, mode, access_cb, &cb_data) != 0) {
1216                 nfs_set_error(nfs, "nfs_access_async failed");
1217                 return -1;
1218         }
1219
1220         wait_for_nfs_reply(nfs, &cb_data);
1221
1222         return cb_data.status;
1223 }
1224
1225
1226
1227 /*
1228  * symlink()
1229  */
1230 static void symlink_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1231 {
1232         struct sync_cb_data *cb_data = private_data;
1233
1234         cb_data->is_finished = 1;
1235         cb_data->status = status;
1236
1237         if (status < 0) {
1238                 nfs_set_error(nfs, "symlink call failed with \"%s\"", (char *)data);
1239                 return;
1240         }
1241 }
1242
1243 int nfs_symlink(struct nfs_context *nfs, const char *oldpath, const char *newpath)
1244 {
1245         struct sync_cb_data cb_data;
1246
1247         cb_data.is_finished = 0;
1248
1249         if (nfs_symlink_async(nfs, oldpath, newpath, symlink_cb, &cb_data) != 0) {
1250                 nfs_set_error(nfs, "nfs_symlink_async failed");
1251                 return -1;
1252         }
1253
1254         wait_for_nfs_reply(nfs, &cb_data);
1255
1256         return cb_data.status;
1257 }
1258
1259
1260
1261 /*
1262  * rename()
1263  */
1264 static void rename_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1265 {
1266         struct sync_cb_data *cb_data = private_data;
1267
1268         cb_data->is_finished = 1;
1269         cb_data->status = status;
1270
1271         if (status < 0) {
1272                 nfs_set_error(nfs, "rename call failed with \"%s\"", (char *)data);
1273                 return;
1274         }
1275 }
1276
1277 int nfs_rename(struct nfs_context *nfs, const char *oldpath, const char *newpath)
1278 {
1279         struct sync_cb_data cb_data;
1280
1281         cb_data.is_finished = 0;
1282
1283         if (nfs_rename_async(nfs, oldpath, newpath, rename_cb, &cb_data) != 0) {
1284                 nfs_set_error(nfs, "nfs_rename_async failed");
1285                 return -1;
1286         }
1287
1288         wait_for_nfs_reply(nfs, &cb_data);
1289
1290         return cb_data.status;
1291 }
1292
1293
1294
1295 /*
1296  * link()
1297  */
1298 static void link_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1299 {
1300         struct sync_cb_data *cb_data = private_data;
1301
1302         cb_data->is_finished = 1;
1303         cb_data->status = status;
1304
1305         if (status < 0) {
1306                 nfs_set_error(nfs, "link call failed with \"%s\"", (char *)data);
1307                 return;
1308         }
1309 }
1310
1311 int nfs_link(struct nfs_context *nfs, const char *oldpath, const char *newpath)
1312 {
1313         struct sync_cb_data cb_data;
1314
1315         cb_data.is_finished = 0;
1316
1317         if (nfs_link_async(nfs, oldpath, newpath, link_cb, &cb_data) != 0) {
1318                 nfs_set_error(nfs, "nfs_link_async failed");
1319                 return -1;
1320         }
1321
1322         wait_for_nfs_reply(nfs, &cb_data);
1323
1324         return cb_data.status;
1325 }
1326
1327 void mount_getexports_cb(struct rpc_context *mount_context, int status, void *data, void *private_data)
1328 {
1329         struct sync_cb_data *cb_data = private_data;
1330         exports export;
1331
1332         assert(mount_context->magic == RPC_CONTEXT_MAGIC);
1333
1334         cb_data->is_finished = 1;
1335         cb_data->status = status;
1336         cb_data->return_data = NULL;
1337
1338         if (status != 0) {
1339                 rpc_set_error(mount_context, "mount/export call failed with \"%s\"", (char *)data);
1340                 return;
1341         }
1342
1343         export = *(exports *)data;
1344         while (export != NULL) {
1345                 exports new_export;
1346
1347                 new_export = malloc(sizeof(*new_export));
1348                 memset(new_export, 0, sizeof(*new_export));
1349                 new_export->ex_dir  = strdup(export->ex_dir);
1350                 new_export->ex_next = cb_data->return_data;
1351
1352                 cb_data->return_data = new_export;
1353
1354                 export = export->ex_next;
1355         }
1356 }
1357
1358 struct exportnode *mount_getexports(const char *server)
1359 {
1360         struct sync_cb_data cb_data;
1361         struct rpc_context *rpc;
1362
1363
1364         cb_data.is_finished = 0;
1365         cb_data.return_data = NULL;
1366
1367         rpc = rpc_init_context();
1368         if (mount_getexports_async(rpc, server, mount_getexports_cb, &cb_data) != 0) {
1369                 rpc_destroy_context(rpc);
1370                 return NULL;
1371         }
1372
1373         wait_for_reply(rpc, &cb_data);
1374         rpc_destroy_context(rpc);
1375
1376         return cb_data.return_data;
1377 }
1378
1379 void mount_free_export_list(struct exportnode *exports)
1380 {
1381         struct exportnode *tmp;
1382
1383         while ((tmp = exports)) {
1384                 exports = exports->ex_next;
1385                 free(tmp->ex_dir);
1386                 free(tmp);
1387         }
1388 }
1389
1390
1391
1392 void free_nfs_srvr_list(struct nfs_server_list *srv)
1393 {
1394         while (srv != NULL) {
1395                 struct nfs_server_list *next = srv->next;
1396
1397                 free(srv->addr);
1398                 free(srv);
1399                 srv = next;
1400         }
1401 }
1402
1403 struct nfs_list_data {
1404        int status;
1405        struct nfs_server_list *srvrs;
1406 };
1407
1408 void callit_cb(struct rpc_context *rpc, int status, void *data _U_, void *private_data)
1409 {
1410         struct nfs_list_data *srv_data = private_data;
1411         struct sockaddr *sin;
1412         char hostdd[16];
1413         struct nfs_server_list *srvr;
1414
1415         assert(rpc->magic == RPC_CONTEXT_MAGIC);
1416
1417         if (status == RPC_STATUS_CANCEL) {
1418                 return;
1419         }
1420         if (status != 0) {
1421                 srv_data->status = -1;
1422                 return;
1423         }
1424
1425         sin = rpc_get_recv_sockaddr(rpc);
1426         if (sin == NULL) {
1427                 rpc_set_error(rpc, "failed to get sockaddr in CALLIT callback");
1428                 srv_data->status = -1;
1429                 return;
1430         }
1431
1432         if (getnameinfo(sin, sizeof(struct sockaddr_in), &hostdd[0], sizeof(hostdd), NULL, 0, NI_NUMERICHOST) < 0) {
1433                 rpc_set_error(rpc, "getnameinfo failed in CALLIT callback");
1434                 srv_data->status = -1;
1435                 return;
1436         }
1437
1438         /* check for dupes */
1439         for (srvr = srv_data->srvrs; srvr; srvr = srvr->next) {
1440                 if (!strcmp(hostdd, srvr->addr)) {
1441                         return;
1442                 }
1443         }
1444
1445         srvr = malloc(sizeof(struct nfs_server_list));
1446         if (srvr == NULL) {
1447                 rpc_set_error(rpc, "Malloc failed when allocating server structure");
1448                 srv_data->status = -1;
1449                 return;
1450         }
1451
1452         srvr->addr = strdup(hostdd);
1453         if (srvr->addr == NULL) {
1454                 rpc_set_error(rpc, "Strdup failed when allocating server structure");
1455                 free(srvr);
1456                 srv_data->status = -1;
1457                 return;
1458         }
1459
1460         srvr->next = srv_data->srvrs;
1461         srv_data->srvrs = srvr;
1462 }
1463
1464 #ifdef WIN32
1465
1466 static int send_nfsd_probes(struct rpc_context *rpc, INTERFACE_INFO *InterfaceList, int numIfs, struct nfs_list_data *data)
1467 {
1468   int i=0;
1469
1470   assert(rpc->magic == RPC_CONTEXT_MAGIC);
1471
1472   for(i = 0; i < numIfs; i++)
1473   {
1474     SOCKADDR *pAddress;
1475     char bcdd[16];
1476     unsigned long nFlags = 0;
1477
1478     pAddress = (SOCKADDR *) & (InterfaceList[i].iiBroadcastAddress);
1479
1480     if(pAddress->sa_family != AF_INET)
1481       continue;
1482
1483     nFlags = InterfaceList[i].iiFlags;
1484
1485     if (!(nFlags & IFF_UP))
1486     {
1487       continue;
1488     }
1489
1490     if (nFlags & IFF_LOOPBACK)
1491     {
1492       continue;
1493     }
1494
1495     if (!(nFlags & IFF_BROADCAST))
1496     {
1497       continue;
1498     }
1499
1500     if (getnameinfo(pAddress, sizeof(struct sockaddr_in), &bcdd[0], sizeof(bcdd), NULL, 0, NI_NUMERICHOST) < 0)
1501     {
1502       continue;
1503     }
1504
1505     if (rpc_set_udp_destination(rpc, bcdd, 111, 1) < 0)
1506     {
1507       return -1;
1508     }
1509
1510     if (rpc_pmap2_callit_async(rpc, MOUNT_PROGRAM, 2, 0, NULL, 0, callit_cb, data) < 0)
1511     {
1512       return -1;
1513     }
1514   }
1515   return 0;
1516 }
1517
1518 struct nfs_server_list *nfs_find_local_servers(void)
1519 {
1520   struct rpc_context *rpc;
1521   struct nfs_list_data data = {0, NULL};
1522   struct timeval tv_start, tv_current;
1523   int loop;
1524   struct pollfd pfd;
1525   INTERFACE_INFO InterfaceList[20];
1526   unsigned long nBytesReturned;
1527   int nNumInterfaces = 0;
1528
1529   rpc = rpc_init_udp_context();
1530   if (rpc == NULL)
1531   {
1532     return NULL;
1533   }
1534
1535   if (rpc_bind_udp(rpc, "0.0.0.0", 0) < 0)
1536   {
1537     rpc_destroy_context(rpc);
1538     return NULL;
1539   }
1540
1541   if (WSAIoctl(rpc_get_fd(rpc), SIO_GET_INTERFACE_LIST, 0, 0, &InterfaceList, sizeof(InterfaceList), &nBytesReturned, 0, 0) == SOCKET_ERROR)
1542   {
1543     return NULL;
1544   }
1545
1546   nNumInterfaces = nBytesReturned / sizeof(INTERFACE_INFO);
1547
1548   for (loop=0; loop<3; loop++)
1549   {
1550     if (send_nfsd_probes(rpc, InterfaceList, nNumInterfaces, &data) != 0)
1551     {
1552       rpc_destroy_context(rpc);
1553       return NULL;
1554     }
1555
1556     win32_gettimeofday(&tv_start, NULL);
1557     for(;;)
1558     {
1559       int mpt;
1560
1561       pfd.fd = rpc_get_fd(rpc);
1562       pfd.events = rpc_which_events(rpc);
1563
1564       win32_gettimeofday(&tv_current, NULL);
1565       mpt = 1000
1566       -    (tv_current.tv_sec *1000 + tv_current.tv_usec / 1000)
1567       +    (tv_start.tv_sec *1000 + tv_start.tv_usec / 1000);
1568
1569       if (poll(&pfd, 1, mpt) < 0)
1570       {
1571         free_nfs_srvr_list(data.srvrs);
1572         rpc_destroy_context(rpc);
1573         return NULL;
1574       }
1575       if (pfd.revents == 0)
1576       {
1577         break;
1578       }
1579
1580       if (rpc_service(rpc, pfd.revents) < 0)
1581       {
1582         break;
1583       }
1584     }
1585   }
1586
1587   rpc_destroy_context(rpc);
1588
1589   if (data.status != 0)
1590   {
1591     free_nfs_srvr_list(data.srvrs);
1592     return NULL;
1593   }
1594   return data.srvrs;
1595 }
1596 #else
1597
1598 static int send_nfsd_probes(struct rpc_context *rpc, struct ifconf *ifc, struct nfs_list_data *data)
1599 {
1600         char *ptr;
1601
1602         assert(rpc->magic == RPC_CONTEXT_MAGIC);
1603
1604         for (ptr =(char *)(ifc->ifc_buf); ptr < (char *)(ifc->ifc_buf) + ifc->ifc_len; ) {
1605                 struct ifreq *ifr;
1606                 char bcdd[16];
1607
1608                 ifr = (struct ifreq *)ptr;
1609 #ifdef HAVE_SOCKADDR_LEN
1610                 if (ifr->ifr_addr.sa_len > sizeof(struct sockaddr)) {
1611                         ptr += sizeof(ifr->ifr_name) + ifr->ifr_addr.sa_len;
1612                 } else {
1613                         ptr += sizeof(ifr->ifr_name) + sizeof(struct sockaddr);
1614                 }
1615 #else
1616                 ptr += sizeof(struct ifreq);
1617 #endif
1618
1619                 if (ifr->ifr_addr.sa_family != AF_INET) {
1620                         continue;
1621                 }
1622                 if (ioctl(rpc_get_fd(rpc), SIOCGIFFLAGS, ifr) < 0) {
1623                         return -1;
1624                 }
1625                 if (!(ifr->ifr_flags & IFF_UP)) {
1626                         continue;
1627                 }
1628                 if (ifr->ifr_flags & IFF_LOOPBACK) {
1629                         continue;
1630                 }
1631                 if (!(ifr->ifr_flags & IFF_BROADCAST)) {
1632                         continue;
1633                 }
1634                 if (ioctl(rpc_get_fd(rpc), SIOCGIFBRDADDR, ifr) < 0) {
1635                         continue;
1636                 }
1637                 if (getnameinfo(&ifr->ifr_broadaddr, sizeof(struct sockaddr_in), &bcdd[0], sizeof(bcdd), NULL, 0, NI_NUMERICHOST) < 0) {
1638                         continue;
1639                 }
1640                 if (rpc_set_udp_destination(rpc, bcdd, 111, 1) < 0) {
1641                         return -1;
1642                 }
1643
1644                 if (rpc_pmap2_callit_async(rpc, MOUNT_PROGRAM, 2, 0, NULL, 0, callit_cb, data) < 0) {
1645                         return -1;
1646                 }
1647         }
1648
1649         return 0;
1650 }
1651
1652 struct nfs_server_list *nfs_find_local_servers(void)
1653 {
1654         struct rpc_context *rpc;
1655         struct nfs_list_data data = {0, NULL};
1656         struct timeval tv_start, tv_current;
1657         struct ifconf ifc;
1658         int size, loop;
1659         struct pollfd pfd;
1660
1661         rpc = rpc_init_udp_context();
1662         if (rpc == NULL) {
1663                 return NULL;
1664         }
1665
1666         if (rpc_bind_udp(rpc, "0.0.0.0", 0) < 0) {
1667                 rpc_destroy_context(rpc);
1668                 return NULL;
1669         }
1670
1671
1672         /* get list of all interfaces */
1673         size = sizeof(struct ifreq);
1674         ifc.ifc_buf = NULL;
1675         ifc.ifc_len = size;
1676
1677         while(ifc.ifc_len > (size - sizeof(struct ifreq))) {
1678                 size *= 2;
1679
1680                 free(ifc.ifc_buf);
1681                 ifc.ifc_len = size;
1682                 ifc.ifc_buf = malloc(size);
1683                 memset(ifc.ifc_buf, 0, size);
1684                 if (ioctl(rpc_get_fd(rpc), SIOCGIFCONF, (caddr_t)&ifc) < 0) {
1685                         rpc_destroy_context(rpc);
1686                         free(ifc.ifc_buf);
1687                         return NULL;
1688                 }
1689         }
1690
1691         for (loop=0; loop<3; loop++) {
1692                 if (send_nfsd_probes(rpc, &ifc, &data) != 0) {
1693                         rpc_destroy_context(rpc);
1694                         free(ifc.ifc_buf);
1695                         return NULL;
1696                 }
1697
1698                 gettimeofday(&tv_start, NULL);
1699                 for(;;) {
1700                         int mpt;
1701
1702                         pfd.fd = rpc_get_fd(rpc);
1703                         pfd.events = rpc_which_events(rpc);
1704
1705                         gettimeofday(&tv_current, NULL);
1706                         mpt = 1000
1707                         -    (tv_current.tv_sec *1000 + tv_current.tv_usec / 1000)
1708                         +    (tv_start.tv_sec *1000 + tv_start.tv_usec / 1000);
1709
1710                         if (poll(&pfd, 1, mpt) < 0) {
1711                                 free_nfs_srvr_list(data.srvrs);
1712                                 rpc_destroy_context(rpc);
1713                                 return NULL;
1714                         }
1715                         if (pfd.revents == 0) {
1716                                 break;
1717                         }
1718
1719                         if (rpc_service(rpc, pfd.revents) < 0) {
1720                                 break;
1721                         }
1722                 }
1723         }
1724
1725         free(ifc.ifc_buf);
1726         rpc_destroy_context(rpc);
1727
1728         if (data.status != 0) {
1729                 free_nfs_srvr_list(data.srvrs);
1730                 return NULL;
1731         }
1732         return data.srvrs;
1733 }
1734 #endif//WIN32