source3/libsmb/libsmbclient.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    SMB client library implementation
   4    Copyright (C) Andrew Tridgell 1998
   5    Copyright (C) Richard Sharpe 2000, 2002
   6    Copyright (C) John Terpstra 2000
   7    Copyright (C) Tom Jansen (Ninja ISD) 2002
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24 #include "includes.h"
  25
  26 #include "../include/libsmb_internal.h"
  27
  28 /*
  29  * Functions exported by libsmb_cache.c that we need here
  30  */
  31 int smbc_default_cache_functions(SMBCCTX *context);
  32
  33 /*
  34  * check if an element is part of the list.
  35  * FIXME: Does not belong here !
  36  * Can anyone put this in a macro in dlinklist.h ?
  37  * -- Tom
  38  */
  39 static int DLIST_CONTAINS(SMBCFILE * list, SMBCFILE *p) {
  40         if (!p || !list) return False;
  41         do {
  42                 if (p == list) return True;
  43                 list = list->next;
  44         } while (list);
  45         return False;
  46 }
  47
  48 extern BOOL in_client;
  49
  50 /*
  51  * Is the logging working / configfile read ?
  52  */
  53 static int smbc_initialized = 0;
  54
  55 static int
  56 hex2int( unsigned int _char )
  57 {
  58     if ( _char >= 'A' && _char <='F')
  59         return _char - 'A' + 10;
  60     if ( _char >= 'a' && _char <='f')
  61         return _char - 'a' + 10;
  62     if ( _char >= '0' && _char <='9')
  63         return _char - '0';
  64     return -1;
  65 }
  66
  67 static void
  68 decode_urlpart(char *segment, size_t sizeof_segment)
  69 {
  70     int old_length = strlen(segment);
  71     int new_length = 0;
  72     int new_length2 = 0;
  73     int i = 0;
  74     pstring new_segment;
  75     char *new_usegment = 0;
  76
  77     if ( !old_length ) {
  78         return;
  79     }
  80
  81     /* make a copy of the old one */
  82     new_usegment = (char*)malloc( old_length * 3 + 1 );
  83
  84     while( i < old_length ) {
  85         int bReencode = False;
  86         unsigned char character = segment[ i++ ];
  87         if ((character <= ' ') || (character > 127))
  88             bReencode = True;
  89
  90         new_usegment [ new_length2++ ] = character;
  91         if (character == '%' ) {
  92             int a = i+1 < old_length ? hex2int( segment[i] ) : -1;
  93             int b = i+1 < old_length ? hex2int( segment[i+1] ) : -1;
  94             if ((a == -1) || (b == -1)) { /* Only replace if sequence is valid */
  95                 /* Contains stray %, make sure to re-encode! */
  96                 bReencode = True;
  97             } else {
  98                 /* Valid %xx sequence */
  99                 character = a * 16 + b; /* Replace with value of %dd */
 100                 if (!character)
 101                     break; /* Stop at %00 */
 102
 103                 new_usegment [ new_length2++ ] = (unsigned char) segment[i++];
 104                 new_usegment [ new_length2++ ] = (unsigned char) segment[i++];
 105             }
 106         }
 107         if (bReencode) {
 108             unsigned int c = character / 16;
 109             new_length2--;
 110             new_usegment [ new_length2++ ] = '%';
 111
 112             c += (c > 9) ? ('A' - 10) : '0';
 113             new_usegment[ new_length2++ ] = c;
 114
 115             c = character % 16;
 116             c += (c > 9) ? ('A' - 10) : '0';
 117             new_usegment[ new_length2++ ] = c;
 118         }
 119
 120         new_segment [ new_length++ ] = character;
 121     }
 122     new_segment [ new_length ] = 0;
 123
 124     free(new_usegment);
 125
 126     /* realloc it with unix charset */
 127     pull_utf8_allocate((void**)&new_usegment, new_segment);
 128
 129     /* this assumes (very safely) that removing %aa sequences
 130        only shortens the string */
 131     strncpy(segment, new_usegment, sizeof_segment);
 132
 133     free(new_usegment);
 134 }
 135
 136 /*
 137  * Function to parse a path and turn it into components
 138  *
 139  * We accept smb://[[[domain;]user[:password@]]server[/share[/path[/file]]]]
 140  *
 141  * smb://       means show all the workgroups
 142  * smb://name/  means, if name<1D> or name<1B> exists, list servers in workgroup,
 143  *              else, if name<20> exists, list all shares for server ...
 144  */
 145
 146 static const char *smbc_prefix = "smb:";
 147
 148 static int
 149 smbc_parse_path(SMBCCTX *context, const char *fname, char *server, char *share, char *path,
 150                 char *user, char *password) /* FIXME, lengths of strings */
 151 {
 152         static pstring s;
 153         pstring userinfo;
 154         const char *p;
 155         char *q, *r;
 156         int len;
 157
 158         server[0] = share[0] = path[0] = user[0] = password[0] = (char)0;
 159         pstrcpy(s, fname);
 160
 161         /*  clean_fname(s);  causing problems ... */
 162
 163         /* see if it has the right prefix */
 164         len = strlen(smbc_prefix);
 165         if (strncmp(s,smbc_prefix,len) ||
 166             (s[len] != '/' && s[len] != 0)) return -1; /* What about no smb: ? */
 167
 168         p = s + len;
 169
 170         /* Watch the test below, we are testing to see if we should exit */
 171
 172         if (strncmp(p, "//", 2) && strncmp(p, "\\\\", 2)) {
 173
 174                 return -1;
 175
 176         }
 177
 178         p += 2;  /* Skip the // or \\  */
 179
 180         if (*p == (char)0)
 181             goto decoding;
 182
 183         if (*p == '/') {
 184
 185                 strncpy(server, context->workgroup,
 186                         (strlen(context->workgroup) < 16)?strlen(context->workgroup):16);
 187                 return 0;
 188
 189         }
 190
 191         /*
 192          * ok, its for us. Now parse out the server, share etc.
 193          *
 194          * However, we want to parse out [[domain;]user[:password]@] if it
 195          * exists ...
 196          */
 197
 198         /* check that '@' occurs before '/', if '/' exists at all */
 199         q = strchr_m(p, '@');
 200         r = strchr_m(p, '/');
 201         if (q && (!r || q < r)) {
 202                 pstring username, passwd, domain;
 203                 const char *u = userinfo;
 204
 205                 next_token(&p, userinfo, "@", sizeof(fstring));
 206
 207                 username[0] = passwd[0] = domain[0] = 0;
 208
 209                 if (strchr_m(u, ';')) {
 210
 211                         next_token(&u, domain, ";", sizeof(fstring));
 212
 213                 }
 214
 215                 if (strchr_m(u, ':')) {
 216
 217                         next_token(&u, username, ":", sizeof(fstring));
 218
 219                         pstrcpy(passwd, u);
 220
 221                 }
 222                 else {
 223
 224                         pstrcpy(username, u);
 225
 226                 }
 227
 228                 if (username[0])
 229                         strncpy(user, username, sizeof(fstring));  /* FIXME, size and domain */
 230
 231                 if (passwd[0])
 232                         strncpy(password, passwd, sizeof(fstring)); /* FIXME, size */
 233
 234         }
 235
 236         if (!next_token(&p, server, "/", sizeof(fstring))) {
 237
 238                 return -1;
 239
 240         }
 241
 242         if (*p == (char)0) goto decoding;  /* That's it ... */
 243
 244         if (!next_token(&p, share, "/", sizeof(fstring))) {
 245
 246                 return -1;
 247
 248         }
 249
 250         pstrcpy(path, p);
 251
 252         all_string_sub(path, "/", "\\", 0);
 253
 254  decoding:
 255         decode_urlpart(path, sizeof(pstring));
 256         decode_urlpart(server, sizeof(fstring));
 257         decode_urlpart(share, sizeof(fstring));
 258         decode_urlpart(user, sizeof(fstring));
 259         decode_urlpart(password, sizeof(fstring));
 260
 261         return 0;
 262 }
 263
 264 /*
 265  * Convert an SMB error into a UNIX error ...
 266  */
 267
 268 static int smbc_errno(SMBCCTX *context, struct cli_state *c)
 269 {
 270         int ret = cli_errno(c);
 271
 272         if (cli_is_dos_error(c)) {
 273                 uint8 eclass;
 274                 uint32 ecode;
 275
 276                 cli_dos_error(c, &eclass, &ecode);
 277
 278                 DEBUG(3,("smbc_error %d %d (0x%x) -> %d\n",
 279                          (int)eclass, (int)ecode, (int)ecode, ret));
 280         } else {
 281                 NTSTATUS status;
 282
 283                 status = cli_nt_error(c);
 284
 285                 DEBUG(3,("smbc errno %s -> %d\n",
 286                          nt_errstr(status), ret));
 287         }
 288
 289         return ret;
 290 }
 291
 292 /*
 293  * Check a server_fd.
 294  * returns 0 if the server is in shape. Returns 1 on error
 295  *
 296  * Also useable outside libsmbclient to enable external cache
 297  * to do some checks too.
 298  */
 299 int smbc_check_server(SMBCCTX * context, SMBCSRV * server)
 300 {
 301         if ( send_keepalive(server->cli.fd) == False )
 302                 return 1;
 303
 304         /* connection is ok */
 305         return 0;
 306 }
 307
 308 /*
 309  * Remove a server from the cached server list it's unused.
 310  * On success, 0 is returned. 1 is returned if the server could not be removed.
 311  *
 312  * Also useable outside libsmbclient
 313  */
 314 int smbc_remove_unused_server(SMBCCTX * context, SMBCSRV * srv)
 315 {
 316         SMBCFILE * file;
 317
 318         /* are we being fooled ? */
 319         if (!context || !context->internal ||
 320             !context->internal->_initialized || !srv) return 1;
 321
 322
 323         /* Check all open files/directories for a relation with this server */
 324         for (file = context->internal->_files; file; file=file->next) {
 325                 if (file->srv == srv) {
 326                         /* Still used */
 327                         DEBUG(3, ("smbc_remove_usused_server: %p still used by %p.\n",
 328                                   srv, file));
 329                         return 1;
 330                 }
 331         }
 332
 333         DLIST_REMOVE(context->internal->_servers, srv);
 334
 335         cli_shutdown(&srv->cli);
 336
 337         DEBUG(3, ("smbc_remove_usused_server: %p removed.\n", srv));
 338
 339         context->callbacks.remove_cached_srv_fn(context, srv);
 340
 341         SAFE_FREE(srv);
 342
 343         return 0;
 344 }
 345
 346 /*
 347  * Connect to a server, possibly on an existing connection
 348  *
 349  * Here, what we want to do is: If the server and username
 350  * match an existing connection, reuse that, otherwise, establish a
 351  * new connection.
 352  *
 353  * If we have to create a new connection, call the auth_fn to get the
 354  * info we need, unless the username and password were passed in.
 355  */
 356
 357 SMBCSRV *smbc_server(SMBCCTX *context,
 358                      const char *server, const char *share,
 359                      fstring workgroup, fstring username,
 360                      fstring password)
 361 {
 362         SMBCSRV *srv=NULL;
 363         int auth_called = 0;
 364         struct cli_state c;
 365         struct nmb_name called, calling;
 366         char *p;
 367         const char *server_n = server;
 368         fstring group;
 369         pstring ipenv;
 370         struct in_addr ip;
 371         int tried_reverse = 0;
 372
 373         zero_ip(&ip);
 374         ZERO_STRUCT(c);
 375
 376         if (server[0] == 0) {
 377                 errno = EPERM;
 378                 return NULL;
 379         }
 380
 381  check_server_cache:
 382
 383         srv = context->callbacks.get_cached_srv_fn(context, server, share,
 384                                                    workgroup, username);
 385
 386         if (!auth_called && !srv && (!username[0] || !password[0])) {
 387                 context->callbacks.auth_fn(server, share, workgroup, sizeof(fstring),
 388                              username, sizeof(fstring), password, sizeof(fstring));
 389                 /*
 390                  * However, smbc_auth_fn may have picked up info relating to an
 391                  * existing connection, so try for an existing connection again ...
 392                  */
 393                 auth_called = 1;
 394                 goto check_server_cache;
 395
 396         }
 397
 398         if (srv) {
 399                 if (context->callbacks.check_server_fn(context, srv)) {
 400                         /*
 401                          * This server is no good anymore
 402                          * Try to remove it and check for more possible servers in the cache
 403                          */
 404                         if (context->callbacks.remove_unused_server_fn(context, srv)) {
 405                                 /*
 406                                  * We could not remove the server completely, remove it from the cache
 407                                  * so we will not get it again. It will be removed when the last file/dir
 408                                  * is closed.
 409                                  */
 410                                 context->callbacks.remove_cached_srv_fn(context, srv);
 411                         }
 412
 413                         /*
 414                          * Maybe there are more cached connections to this server
 415                          */
 416                         goto check_server_cache;
 417                 }
 418                 return srv;
 419         }
 420
 421         make_nmb_name(&calling, context->netbios_name, 0x0);
 422         make_nmb_name(&called , server, 0x20);
 423
 424         DEBUG(4,("smbc_server: server_n=[%s] server=[%s]\n", server_n, server));
 425
 426         if ((p=strchr_m(server_n,'#')) &&
 427             (strcmp(p+1,"1D")==0 || strcmp(p+1,"01")==0)) {
 428
 429                 fstrcpy(group, server_n);
 430                 p = strchr_m(group,'#');
 431                 *p = 0;
 432
 433         }
 434
 435         DEBUG(4,(" -> server_n=[%s] server=[%s]\n", server_n, server));
 436
 437  again:
 438         slprintf(ipenv,sizeof(ipenv)-1,"HOST_%s", server_n);
 439
 440         zero_ip(&ip);
 441
 442         /* have to open a new connection */
 443         if (!cli_initialise(&c)) {
 444                 errno = ENOENT;
 445                 return NULL;
 446         }
 447
 448         c.timeout = context->timeout;
 449
 450         if (!cli_connect(&c, server_n, &ip)) {
 451                 cli_shutdown(&c);
 452                 errno = ENOENT;
 453                 return NULL;
 454         }
 455
 456         if (!cli_session_request(&c, &calling, &called)) {
 457                 cli_shutdown(&c);
 458                 if (strcmp(called.name, "*SMBSERVER")) {
 459                         make_nmb_name(&called , "*SMBSERVER", 0x20);
 460                         goto again;
 461                 }
 462                 else {  /* Try one more time, but ensure we don't loop */
 463
 464                   /* Only try this if server is an IP address ... */
 465
 466                   if (is_ipaddress(server) && !tried_reverse) {
 467                     fstring remote_name;
 468                     struct in_addr rem_ip;
 469
 470                     if ((rem_ip.s_addr=inet_addr(server)) == INADDR_NONE) {
 471                       DEBUG(4, ("Could not convert IP address %s to struct in_addr\n", server));
 472                       errno = ENOENT;
 473                       return NULL;
 474                     }
 475
 476                     tried_reverse++; /* Yuck */
 477
 478                     if (name_status_find("*", 0, 0, rem_ip, remote_name)) {
 479                       make_nmb_name(&called, remote_name, 0x20);
 480                       goto again;
 481                     }
 482
 483
 484                   }
 485                 }
 486                 errno = ENOENT;
 487                 return NULL;
 488         }
 489
 490         DEBUG(4,(" session request ok\n"));
 491
 492         if (!cli_negprot(&c)) {
 493                 cli_shutdown(&c);
 494                 errno = ENOENT;
 495                 return NULL;
 496         }
 497
 498         if (!cli_session_setup(&c, username,
 499                                password, strlen(password),
 500                                password, strlen(password),
 501                                workgroup) &&
 502             /* try an anonymous login if it failed */
 503             !cli_session_setup(&c, "", "", 1,"", 0, workgroup)) {
 504                 cli_shutdown(&c);
 505                 errno = EPERM;
 506                 return NULL;
 507         }
 508
 509         DEBUG(4,(" session setup ok\n"));
 510
 511         if (!cli_send_tconX(&c, share, "?????",
 512                             password, strlen(password)+1)) {
 513                 errno = smbc_errno(context, &c);
 514                 cli_shutdown(&c);
 515                 return NULL;
 516         }
 517
 518         DEBUG(4,(" tconx ok\n"));
 519
 520         /*
 521          * Ok, we have got a nice connection
 522          * Let's find a free server_fd
 523          */
 524
 525         srv = (SMBCSRV *)malloc(sizeof(*srv));
 526         if (!srv) {
 527                 errno = ENOMEM;
 528                 goto failed;
 529         }
 530
 531         ZERO_STRUCTP(srv);
 532         srv->cli = c;
 533         srv->dev = (dev_t)(str_checksum(server) ^ str_checksum(share));
 534
 535         /* now add it to the cache (internal or external) */
 536         if (context->callbacks.add_cached_srv_fn(context, srv, server, share, workgroup, username)) {
 537                 DEBUG(3, (" Failed to add server to cache\n"));
 538                 goto failed;
 539         }
 540
 541
 542         DEBUG(2, ("Server connect ok: //%s/%s: %p\n",
 543                   server, share, srv));
 544
 545         return srv;
 546
 547  failed:
 548         cli_shutdown(&c);
 549         if (!srv) return NULL;
 550
 551         SAFE_FREE(srv);
 552         return NULL;
 553 }
 554
 555 /*
 556  * Routine to open() a file ...
 557  */
 558
 559 static SMBCFILE *smbc_open_ctx(SMBCCTX *context, const char *fname, int flags, mode_t mode)
 560 {
 561         fstring server, share, user, password, workgroup;
 562         pstring path;
 563         SMBCSRV *srv   = NULL;
 564         SMBCFILE *file = NULL;
 565         int fd;
 566
 567         if (!context || !context->internal ||
 568             !context->internal->_initialized) {
 569
 570                 errno = EINVAL;  /* Best I can think of ... */
 571                 return NULL;
 572
 573         }
 574
 575         if (!fname) {
 576
 577                 errno = EINVAL;
 578                 return NULL;
 579
 580         }
 581
 582         smbc_parse_path(context, fname, server, share, path, user, password); /* FIXME, check errors */
 583
 584         if (user[0] == (char)0) fstrcpy(user, context->user);
 585
 586         fstrcpy(workgroup, context->workgroup);
 587
 588         srv = smbc_server(context, server, share, workgroup, user, password);
 589
 590         if (!srv) {
 591
 592                 if (errno == EPERM) errno = EACCES;
 593                 return NULL;  /* smbc_server sets errno */
 594
 595         }
 596
 597         /* Hmmm, the test for a directory is suspect here ... FIXME */
 598
 599         if (strlen(path) > 0 && path[strlen(path) - 1] == '\\') {
 600
 601                 fd = -1;
 602
 603         }
 604         else {
 605
 606                 file = malloc(sizeof(SMBCFILE));
 607
 608                 if (!file) {
 609
 610                         errno = ENOMEM;
 611                         return NULL;
 612
 613                 }
 614
 615                 ZERO_STRUCTP(file);
 616
 617                 if ((fd = cli_open(&srv->cli, path, flags, DENY_NONE)) < 0) {
 618
 619                         /* Handle the error ... */
 620
 621                         SAFE_FREE(file);
 622                         errno = smbc_errno(context, &srv->cli);
 623                         return NULL;
 624
 625                 }
 626
 627                 /* Fill in file struct */
 628
 629                 file->cli_fd  = fd;
 630                 file->fname   = strdup(fname);
 631                 file->srv     = srv;
 632                 file->offset  = 0;
 633                 file->file    = True;
 634
 635                 DLIST_ADD(context->internal->_files, file);
 636                 return file;
 637
 638         }
 639
 640         /* Check if opendir needed ... */
 641
 642         if (fd == -1) {
 643                 int eno = 0;
 644
 645                 eno = smbc_errno(context, &srv->cli);
 646                 file = context->opendir(context, fname);
 647                 if (!file) errno = eno;
 648                 return file;
 649
 650         }
 651
 652         errno = EINVAL; /* FIXME, correct errno ? */
 653         return NULL;
 654
 655 }
 656
 657 /*
 658  * Routine to create a file
 659  */
 660
 661 static int creat_bits = O_WRONLY | O_CREAT | O_TRUNC; /* FIXME: Do we need this */
 662
 663 static SMBCFILE *smbc_creat_ctx(SMBCCTX *context, const char *path, mode_t mode)
 664 {
 665
 666         if (!context || !context->internal ||
 667             !context->internal->_initialized) {
 668
 669                 errno = EINVAL;
 670                 return NULL;
 671
 672         }
 673
 674         return smbc_open_ctx(context, path, creat_bits, mode);
 675 }
 676
 677 /*
 678  * Routine to read() a file ...
 679  */
 680
 681 static ssize_t smbc_read_ctx(SMBCCTX *context, SMBCFILE *file, void *buf, size_t count)
 682 {
 683         int ret;
 684
 685         if (!context || !context->internal ||
 686             !context->internal->_initialized) {
 687
 688                 errno = EINVAL;
 689                 return -1;
 690
 691         }
 692
 693         DEBUG(4, ("smbc_read(%p, %d)\n", file, (int)count));
 694
 695         if (!file || !DLIST_CONTAINS(context->internal->_files, file)) {
 696
 697                 errno = EBADF;
 698                 return -1;
 699
 700         }
 701
 702         /* Check that the buffer exists ... */
 703
 704         if (buf == NULL) {
 705
 706                 errno = EINVAL;
 707                 return -1;
 708
 709         }
 710
 711         ret = cli_read(&file->srv->cli, file->cli_fd, buf, file->offset, count);
 712
 713         if (ret < 0) {
 714
 715                 errno = smbc_errno(context, &file->srv->cli);
 716                 return -1;
 717
 718         }
 719
 720         file->offset += ret;
 721
 722         DEBUG(4, ("  --> %d\n", ret));
 723
 724         return ret;  /* Success, ret bytes of data ... */
 725
 726 }
 727
 728 /*
 729  * Routine to write() a file ...
 730  */
 731
 732 static ssize_t smbc_write_ctx(SMBCCTX *context, SMBCFILE *file, void *buf, size_t count)
 733 {
 734         int ret;
 735
 736         if (!context || !context->internal ||
 737             !context->internal->_initialized) {
 738
 739                 errno = EINVAL;
 740                 return -1;
 741
 742         }
 743
 744         if (!file || !DLIST_CONTAINS(context->internal->_files, file)) {
 745
 746                 errno = EBADF;
 747                 return -1;
 748
 749         }
 750
 751         /* Check that the buffer exists ... */
 752
 753         if (buf == NULL) {
 754
 755                 errno = EINVAL;
 756                 return -1;
 757
 758         }
 759
 760         ret = cli_write(&file->srv->cli, file->cli_fd, 0, buf, file->offset, count);
 761
 762         if (ret <= 0) {
 763
 764                 errno = smbc_errno(context, &file->srv->cli);
 765                 return -1;
 766
 767         }
 768
 769         file->offset += ret;
 770
 771         return ret;  /* Success, 0 bytes of data ... */
 772 }
 773
 774 /*
 775  * Routine to close() a file ...
 776  */
 777
 778 static int smbc_close_ctx(SMBCCTX *context, SMBCFILE *file)
 779 {
 780         SMBCSRV *srv;
 781
 782         if (!context || !context->internal ||
 783             !context->internal->_initialized) {
 784
 785                 errno = EINVAL;
 786                 return -1;
 787
 788         }
 789
 790         if (!file || !DLIST_CONTAINS(context->internal->_files, file)) {
 791
 792                 errno = EBADF;
 793                 return -1;
 794
 795         }
 796
 797         /* IS a dir ... */
 798         if (!file->file) {
 799
 800                 return context->closedir(context, file);
 801
 802         }
 803
 804         if (!cli_close(&file->srv->cli, file->cli_fd)) {
 805
 806                 DEBUG(3, ("cli_close failed on %s. purging server.\n",
 807                           file->fname));
 808                 /* Deallocate slot and remove the server
 809                  * from the server cache if unused */
 810                 errno = smbc_errno(context, &file->srv->cli);
 811                 srv = file->srv;
 812                 DLIST_REMOVE(context->internal->_files, file);
 813                 SAFE_FREE(file->fname);
 814                 SAFE_FREE(file);
 815                 context->callbacks.remove_unused_server_fn(context, srv);
 816
 817                 return -1;
 818
 819         }
 820
 821         DLIST_REMOVE(context->internal->_files, file);
 822         SAFE_FREE(file->fname);
 823         SAFE_FREE(file);
 824
 825         return 0;
 826 }
 827
 828 /*
 829  * Get info from an SMB server on a file. Use a qpathinfo call first
 830  * and if that fails, use getatr, as Win95 sometimes refuses qpathinfo
 831  */
 832 static BOOL smbc_getatr(SMBCCTX * context, SMBCSRV *srv, char *path,
 833                  uint16 *mode, size_t *size,
 834                  time_t *c_time, time_t *a_time, time_t *m_time,
 835                  SMB_INO_T *ino)
 836 {
 837
 838         if (!context || !context->internal ||
 839             !context->internal->_initialized) {
 840
 841                 errno = EINVAL;
 842                 return -1;
 843
 844         }
 845
 846         DEBUG(4,("smbc_getatr: sending qpathinfo\n"));
 847
 848         if (!srv->no_pathinfo2 &&
 849             cli_qpathinfo2(&srv->cli, path, c_time, a_time, m_time, NULL,
 850                            size, mode, ino)) return True;
 851
 852         /* if this is NT then don't bother with the getatr */
 853         if (srv->cli.capabilities & CAP_NT_SMBS) return False;
 854
 855         if (cli_getatr(&srv->cli, path, mode, size, m_time)) {
 856                 a_time = c_time = m_time;
 857                 srv->no_pathinfo2 = True;
 858                 return True;
 859         }
 860
 861         return False;
 862
 863 }
 864
 865 /*
 866  * Routine to unlink() a file
 867  */
 868
 869 static int smbc_unlink_ctx(SMBCCTX *context, const char *fname)
 870 {
 871         fstring server, share, user, password, workgroup;
 872         pstring path;
 873         SMBCSRV *srv = NULL;
 874
 875         if (!context || !context->internal ||
 876             !context->internal->_initialized) {
 877
 878                 errno = EINVAL;  /* Best I can think of ... */
 879                 return -1;
 880
 881         }
 882
 883         if (!fname) {
 884
 885                 errno = EINVAL;
 886                 return -1;
 887
 888         }
 889
 890         smbc_parse_path(context, fname, server, share, path, user, password); /* FIXME, check errors */
 891
 892         if (user[0] == (char)0) fstrcpy(user, context->user);
 893
 894         fstrcpy(workgroup, context->workgroup);
 895
 896         srv = smbc_server(context, server, share, workgroup, user, password);
 897
 898         if (!srv) {
 899
 900                 return -1;  /* smbc_server sets errno */
 901
 902         }
 903
 904         /*  if (strncmp(srv->cli.dev, "LPT", 3) == 0) {
 905
 906     int job = smbc_stat_printjob(srv, path, NULL, NULL);
 907     if (job == -1) {
 908
 909       return -1;
 910
 911     }
 912     if ((err = cli_printjob_del(&srv->cli, job)) != 0) {
 913
 914
 915       return -1;
 916
 917     }
 918     } else */
 919
 920         if (!cli_unlink(&srv->cli, path)) {
 921
 922                 errno = smbc_errno(context, &srv->cli);
 923
 924                 if (errno == EACCES) { /* Check if the file is a directory */
 925
 926                         int saverr = errno;
 927                         size_t size = 0;
 928                         uint16 mode = 0;
 929                         time_t m_time = 0, a_time = 0, c_time = 0;
 930                         SMB_INO_T ino = 0;
 931
 932                         if (!smbc_getatr(context, srv, path, &mode, &size,
 933                                          &c_time, &a_time, &m_time, &ino)) {
 934
 935                                 /* Hmmm, bad error ... What? */
 936
 937                                 errno = smbc_errno(context, &srv->cli);
 938                                 return -1;
 939
 940                         }
 941                         else {
 942
 943                                 if (IS_DOS_DIR(mode))
 944                                         errno = EISDIR;
 945                                 else
 946                                         errno = saverr;  /* Restore this */
 947
 948                         }
 949                 }
 950
 951                 return -1;
 952
 953         }
 954
 955         return 0;  /* Success ... */
 956
 957 }
 958
 959 /*
 960  * Routine to rename() a file
 961  */
 962
 963 static int smbc_rename_ctx(SMBCCTX *ocontext, const char *oname,
 964                            SMBCCTX *ncontext, const char *nname)
 965 {
 966         fstring server1, share1, server2, share2, user1, user2, password1, password2, workgroup;
 967         pstring path1, path2;
 968         SMBCSRV *srv = NULL;
 969
 970         if (!ocontext || !ncontext ||
 971             !ocontext->internal || !ncontext->internal ||
 972             !ocontext->internal->_initialized ||
 973             !ncontext->internal->_initialized) {
 974
 975                 errno = EINVAL;  /* Best I can think of ... */
 976                 return -1;
 977
 978         }
 979
 980         if (!oname || !nname) {
 981
 982                 errno = EINVAL;
 983                 return -1;
 984
 985         }
 986
 987         DEBUG(4, ("smbc_rename(%s,%s)\n", oname, nname));
 988
 989         smbc_parse_path(ocontext, oname, server1, share1, path1, user1, password1);
 990
 991         if (user1[0] == (char)0) fstrcpy(user1, ocontext->user);
 992
 993         smbc_parse_path(ncontext, nname, server2, share2, path2, user2, password2);
 994
 995         if (user2[0] == (char)0) fstrcpy(user2, ncontext->user);
 996
 997         if (strcmp(server1, server2) || strcmp(share1, share2) ||
 998             strcmp(user1, user2)) {
 999
1000                 /* Can't rename across file systems, or users?? */
1001
1002                 errno = EXDEV;
1003                 return -1;
1004
1005         }
1006
1007         fstrcpy(workgroup, ocontext->workgroup);
1008         /* HELP !!! Which workgroup should I use ? Or are they always the same -- Tom */
1009         srv = smbc_server(ocontext, server1, share1, workgroup, user1, password1);
1010         if (!srv) {
1011
1012                 return -1;
1013
1014         }
1015
1016         if (!cli_rename(&srv->cli, path1, path2)) {
1017                 int eno = smbc_errno(ocontext, &srv->cli);
1018
1019                 if (eno != EEXIST ||
1020                     !cli_unlink(&srv->cli, path2) ||
1021                     !cli_rename(&srv->cli, path1, path2)) {
1022
1023                         errno = eno;
1024                         return -1;
1025
1026                 }
1027         }
1028
1029         return 0; /* Success */
1030
1031 }
1032
1033 /*
1034  * A routine to lseek() a file
1035  */
1036
1037 static off_t smbc_lseek_ctx(SMBCCTX *context, SMBCFILE *file, off_t offset, int whence)
1038 {
1039         size_t size;
1040
1041         if (!context || !context->internal ||
1042             !context->internal->_initialized) {
1043
1044                 errno = EINVAL;
1045                 return -1;
1046
1047         }
1048
1049         if (!file || !DLIST_CONTAINS(context->internal->_files, file)) {
1050
1051                 errno = EBADF;
1052                 return -1;
1053
1054         }
1055
1056         if (!file->file) {
1057
1058                 errno = EINVAL;
1059                 return -1;      /* Can't lseek a dir ... */
1060
1061         }
1062
1063         switch (whence) {
1064         case SEEK_SET:
1065                 file->offset = offset;
1066                 break;
1067
1068         case SEEK_CUR:
1069                 file->offset += offset;
1070                 break;
1071
1072         case SEEK_END:
1073                 if (!cli_qfileinfo(&file->srv->cli, file->cli_fd, NULL, &size, NULL, NULL,
1074                                    NULL, NULL, NULL))
1075                 {
1076                     SMB_BIG_UINT b_size = size;
1077                     if (!cli_getattrE(&file->srv->cli, file->cli_fd, NULL, &b_size, NULL, NULL,
1078                                       NULL))
1079                     {
1080                         errno = EINVAL;
1081                         return -1;
1082                     } else
1083                         size = b_size;
1084                 }
1085                 file->offset = size + offset;
1086                 break;
1087
1088         default:
1089                 errno = EINVAL;
1090                 break;
1091
1092         }
1093
1094         return file->offset;
1095
1096 }
1097
1098 /*
1099  * Generate an inode number from file name for those things that need it
1100  */
1101
1102 static
1103 ino_t smbc_inode(SMBCCTX *context, const char *name)
1104 {
1105
1106         if (!context || !context->internal ||
1107             !context->internal->_initialized) {
1108
1109                 errno = EINVAL;
1110                 return -1;
1111
1112         }
1113
1114         if (!*name) return 2; /* FIXME, why 2 ??? */
1115         return (ino_t)str_checksum(name);
1116
1117 }
1118
1119 /*
1120  * Routine to put basic stat info into a stat structure ... Used by stat and
1121  * fstat below.
1122  */
1123
1124 static
1125 int smbc_setup_stat(SMBCCTX *context, struct stat *st, char *fname, size_t size, int mode)
1126 {
1127
1128         st->st_mode = 0;
1129
1130         if (IS_DOS_DIR(mode)) {
1131                 st->st_mode = SMBC_DIR_MODE;
1132         } else {
1133                 st->st_mode = SMBC_FILE_MODE;
1134         }
1135
1136         if (IS_DOS_ARCHIVE(mode)) st->st_mode |= S_IXUSR;
1137         if (IS_DOS_SYSTEM(mode)) st->st_mode |= S_IXGRP;
1138         if (IS_DOS_HIDDEN(mode)) st->st_mode |= S_IXOTH;
1139         if (!IS_DOS_READONLY(mode)) st->st_mode |= S_IWUSR;
1140
1141         st->st_size = size;
1142         st->st_blksize = 512;
1143         st->st_blocks = (size+511)/512;
1144         st->st_uid = getuid();
1145         st->st_gid = getgid();
1146
1147         if (IS_DOS_DIR(mode)) {
1148                 st->st_nlink = 2;
1149         } else {
1150                 st->st_nlink = 1;
1151         }
1152
1153         if (st->st_ino == 0) {
1154                 st->st_ino = smbc_inode(context, fname);
1155         }
1156
1157         return True;  /* FIXME: Is this needed ? */
1158
1159 }
1160
1161 /*
1162  * Routine to stat a file given a name
1163  */
1164
1165 static int smbc_stat_ctx(SMBCCTX *context, const char *fname, struct stat *st)
1166 {
1167         SMBCSRV *srv;
1168         fstring server, share, user, password, workgroup;
1169         pstring path;
1170         time_t m_time = 0, a_time = 0, c_time = 0;
1171         size_t size = 0;
1172         uint16 mode = 0;
1173         SMB_INO_T ino = 0;
1174
1175         if (!context || !context->internal ||
1176             !context->internal->_initialized) {
1177
1178                 errno = EINVAL;  /* Best I can think of ... */
1179                 return -1;
1180
1181         }
1182
1183         if (!fname) {
1184
1185                 errno = EINVAL;
1186                 return -1;
1187
1188         }
1189
1190         DEBUG(4, ("smbc_stat(%s)\n", fname));
1191
1192         smbc_parse_path(context, fname, server, share, path, user, password); /*FIXME, errors*/
1193
1194         if (user[0] == (char)0) fstrcpy(user, context->user);
1195
1196         fstrcpy(workgroup, context->workgroup);
1197
1198         srv = smbc_server(context, server, share, workgroup, user, password);
1199
1200         if (!srv) {
1201
1202                 return -1;  /* errno set by smbc_server */
1203
1204         }
1205
1206         /* if (strncmp(srv->cli.dev, "IPC", 3) == 0) {
1207
1208            mode = aDIR | aRONLY;
1209
1210            }
1211            else if (strncmp(srv->cli.dev, "LPT", 3) == 0) {
1212
1213            if (strcmp(path, "\\") == 0) {
1214
1215            mode = aDIR | aRONLY;
1216
1217            }
1218            else {
1219
1220            mode = aRONLY;
1221            smbc_stat_printjob(srv, path, &size, &m_time);
1222            c_time = a_time = m_time;
1223
1224            }
1225            else { */
1226
1227         if (!smbc_getatr(context, srv, path, &mode, &size,
1228                          &c_time, &a_time, &m_time, &ino)) {
1229
1230                 errno = smbc_errno(context, &srv->cli);
1231                 return -1;
1232
1233         }
1234
1235         st->st_ino = ino;
1236
1237         smbc_setup_stat(context, st, path, size, mode);
1238
1239         st->st_atime = a_time;
1240         st->st_ctime = c_time;
1241         st->st_mtime = m_time;
1242         st->st_dev   = srv->dev;
1243
1244         return 0;
1245
1246 }
1247
1248 /*
1249  * Routine to stat a file given an fd
1250  */
1251
1252 static int smbc_fstat_ctx(SMBCCTX *context, SMBCFILE *file, struct stat *st)
1253 {
1254         time_t c_time, a_time, m_time;
1255         size_t size;
1256         uint16 mode;
1257         SMB_INO_T ino = 0;
1258
1259         if (!context || !context->internal ||
1260             !context->internal->_initialized) {
1261
1262                 errno = EINVAL;
1263                 return -1;
1264
1265         }
1266
1267         if (!file || !DLIST_CONTAINS(context->internal->_files, file)) {
1268
1269                 errno = EBADF;
1270                 return -1;
1271
1272         }
1273
1274         if (!file->file) {
1275
1276                 return context->fstatdir(context, file, st);
1277
1278         }
1279
1280         if (!cli_qfileinfo(&file->srv->cli, file->cli_fd,
1281                            &mode, &size, &c_time, &a_time, &m_time, NULL, &ino)) {
1282             SMB_BIG_UINT b_size = size;
1283             if (!cli_getattrE(&file->srv->cli, file->cli_fd,
1284                           &mode, &b_size, &c_time, &a_time, &m_time)) {
1285
1286                 errno = EINVAL;
1287                 return -1;
1288             } else
1289                 size = b_size;
1290
1291         }
1292
1293         st->st_ino = ino;
1294
1295         smbc_setup_stat(context, st, file->fname, size, mode);
1296
1297         st->st_atime = a_time;
1298         st->st_ctime = c_time;
1299         st->st_mtime = m_time;
1300         st->st_dev = file->srv->dev;
1301
1302         return 0;
1303
1304 }
1305
1306 /*
1307  * Routine to open a directory
1308  *
1309  * We want to allow:
1310  *
1311  * smb: which should list all the workgroups available
1312  * smb:workgroup
1313  * smb:workgroup//server
1314  * smb://server
1315  * smb://server/share
1316  * smb://<IP-addr> which should list shares on server
1317  * smb://<IP-addr>/share which should list files on share
1318  */
1319
1320 static void smbc_remove_dir(SMBCFILE *dir)
1321 {
1322         struct smbc_dir_list *d,*f;
1323
1324         d = dir->dir_list;
1325         while (d) {
1326
1327                 f = d; d = d->next;
1328
1329                 SAFE_FREE(f->dirent);
1330                 SAFE_FREE(f);
1331
1332         }
1333
1334         dir->dir_list = dir->dir_end = dir->dir_next = NULL;
1335
1336 }
1337
1338 static int add_dirent(SMBCFILE *dir, const char *name, const char *comment, uint32 type)
1339 {
1340         struct smbc_dirent *dirent;
1341         int size;
1342         char *u_name = NULL, *u_comment = NULL;
1343         size_t u_name_len = 0, u_comment_len = 0;
1344
1345         if (name)
1346             u_name_len = push_utf8_allocate(&u_name, name);
1347         if (comment)
1348             u_comment_len = push_utf8_allocate(&u_comment, comment);
1349
1350         /*
1351          * Allocate space for the dirent, which must be increased by the
1352          * size of the name and the comment and 1 for the null on the comment.
1353          * The null on the name is already accounted for.
1354          */
1355
1356         size = sizeof(struct smbc_dirent) + u_name_len + u_comment_len + 1;
1357
1358         dirent = malloc(size);
1359
1360         if (!dirent) {
1361
1362                 dir->dir_error = ENOMEM;
1363                 return -1;
1364
1365         }
1366
1367         ZERO_STRUCTP(dirent);
1368
1369         if (dir->dir_list == NULL) {
1370
1371                 dir->dir_list = malloc(sizeof(struct smbc_dir_list));
1372                 if (!dir->dir_list) {
1373
1374                         SAFE_FREE(dirent);
1375                         dir->dir_error = ENOMEM;
1376                         return -1;
1377
1378                 }
1379                 ZERO_STRUCTP(dir->dir_list);
1380
1381                 dir->dir_end = dir->dir_next = dir->dir_list;
1382
1383         }
1384         else {
1385
1386                 dir->dir_end->next = malloc(sizeof(struct smbc_dir_list));
1387
1388                 if (!dir->dir_end->next) {
1389
1390                         SAFE_FREE(dirent);
1391                         dir->dir_error = ENOMEM;
1392                         return -1;
1393
1394                 }
1395                 ZERO_STRUCTP(dir->dir_end->next);
1396
1397                 dir->dir_end = dir->dir_end->next;
1398
1399         }
1400
1401         dir->dir_end->next = NULL;
1402         dir->dir_end->dirent = dirent;
1403
1404         dirent->smbc_type = type;
1405         dirent->namelen = u_name_len;
1406         dirent->commentlen = u_comment_len;
1407         dirent->dirlen = size;
1408
1409         strncpy(dirent->name, (u_name?u_name:""), dirent->namelen + 1);
1410
1411         dirent->comment = (char *)(&dirent->name + dirent->namelen + 1);
1412         strncpy(dirent->comment, (u_comment?u_comment:""), dirent->commentlen + 1);
1413
1414         SAFE_FREE(u_comment);
1415         SAFE_FREE(u_name);
1416
1417         return 0;
1418
1419 }
1420
1421 static void
1422 list_fn(const char *name, uint32 type, const char *comment, void *state)
1423 {
1424         SMBCFILE *dir = (SMBCFILE *)state;
1425         int dirent_type;
1426
1427         /* We need to process the type a little ... */
1428
1429         if (dir->dir_type == SMBC_FILE_SHARE) {
1430
1431                 switch (type) {
1432                 case 0: /* Directory tree */
1433                         dirent_type = SMBC_FILE_SHARE;
1434                         break;
1435
1436                 case 1:
1437                         dirent_type = SMBC_PRINTER_SHARE;
1438                         break;
1439
1440                 case 2:
1441                         dirent_type = SMBC_COMMS_SHARE;
1442                         break;
1443
1444                 case 3:
1445                         dirent_type = SMBC_IPC_SHARE;
1446                         break;
1447
1448                 default:
1449                         dirent_type = SMBC_FILE_SHARE; /* FIXME, error? */
1450                         break;
1451                 }
1452         }
1453         else dirent_type = dir->dir_type;
1454
1455         if (add_dirent(dir, name, comment, dirent_type) < 0) {
1456
1457                 /* An error occurred, what do we do? */
1458                 /* FIXME: Add some code here */
1459
1460         }
1461
1462 }
1463
1464 static void
1465 dir_list_fn(file_info *finfo, const char *mask, void *state)
1466 {
1467
1468         if (add_dirent((SMBCFILE *)state, finfo->name, "",
1469                        (finfo->mode&aDIR?SMBC_DIR:SMBC_FILE)) < 0) {
1470
1471                 /* Handle an error ... */
1472
1473                 /* FIXME: Add some code ... */
1474
1475         }
1476
1477 }
1478
1479 static SMBCFILE *smbc_opendir_ctx(SMBCCTX *context, const char *fname)
1480 {
1481         fstring server, share, user, password;
1482         pstring workgroup;
1483         pstring path;
1484         SMBCSRV *srv  = NULL;
1485         SMBCFILE *dir = NULL;
1486         struct in_addr rem_ip;
1487
1488         if (!context || !context->internal ||
1489             !context->internal->_initialized) {
1490                 DEBUG(4, ("no valid context\n"));
1491                 errno = EINVAL;
1492                 return NULL;
1493
1494         }
1495
1496         if (!fname) {
1497                 DEBUG(4, ("no valid fname\n"));
1498                 errno = EINVAL;
1499                 return NULL;
1500         }
1501
1502         if (smbc_parse_path(context, fname, server, share, path, user, password)) {
1503                 DEBUG(4, ("no valid path\n"));
1504                 errno = EINVAL;
1505                 return NULL;
1506         }
1507
1508         DEBUG(4, ("parsed path: fname='%s' server='%s' share='%s' path='%s'\n", fname, server, share, path));
1509
1510         if (user[0] == (char)0) fstrcpy(user, context->user);
1511
1512         pstrcpy(workgroup, context->workgroup);
1513
1514         dir = malloc(sizeof(*dir));
1515
1516         if (!dir) {
1517
1518                 errno = ENOMEM;
1519                 return NULL;
1520
1521         }
1522
1523         ZERO_STRUCTP(dir);
1524
1525         dir->cli_fd   = 0;
1526         dir->fname    = strdup(fname);
1527         dir->srv      = NULL;
1528         dir->offset   = 0;
1529         dir->file     = False;
1530         dir->dir_list = dir->dir_next = dir->dir_end = NULL;
1531
1532         if (server[0] == (char)0) {
1533             struct in_addr server_ip;
1534                 if (share[0] != (char)0 || path[0] != (char)0) {
1535
1536                         errno = EINVAL;
1537                         if (dir) {
1538                                 SAFE_FREE(dir->fname);
1539                                 SAFE_FREE(dir);
1540                         }
1541                         return NULL;
1542                 }
1543
1544                 /* We have server and share and path empty ... so list the workgroups */
1545                 /* first try to get the LMB for our workgroup, and if that fails,     */
1546                 /* try the DMB                                                        */
1547
1548                 pstrcpy(workgroup, lp_workgroup());
1549
1550                 if (!find_master_ip(workgroup, &server_ip)) {
1551                     struct user_auth_info u_info;
1552                     struct cli_state *cli;
1553
1554                     DEBUG(4, ("Unable to find master browser for workgroup %s\n",
1555                               workgroup));
1556
1557                     /* find the name of the server ... */
1558                     pstrcpy(u_info.username, user);
1559                     pstrcpy(u_info.password, password);
1560
1561                     if (!(cli = get_ipc_connect_master_ip_bcast(workgroup, &u_info))) {
1562                         DEBUG(4, ("Unable to find master browser by "
1563                                   "broadcast\n"));
1564                         errno = ENOENT;
1565                         return NULL;
1566                     }
1567
1568                     fstrcpy(server, cli->desthost);
1569
1570                     cli_shutdown(cli);
1571                 } else {
1572                     if (!name_status_find("*", 0, 0, server_ip, server)) {
1573                         errno = ENOENT;
1574                         return NULL;
1575                     }
1576                 }
1577
1578                 DEBUG(4, ("using workgroup %s %s\n", workgroup, server));
1579
1580                /*
1581                 * Get a connection to IPC$ on the server if we do not already have one
1582                 */
1583
1584                 srv = smbc_server(context, server, "IPC$", workgroup, user, password);
1585
1586                if (!srv) {
1587
1588                    if (dir) {
1589                        SAFE_FREE(dir->fname);
1590                        SAFE_FREE(dir);
1591                    }
1592                    return NULL;
1593                }
1594
1595                 dir->srv = srv;
1596                 dir->dir_type = SMBC_WORKGROUP;
1597
1598                 /* Now, list the stuff ... */
1599
1600                 if (!cli_NetServerEnum(&srv->cli, workgroup, SV_TYPE_DOMAIN_ENUM, list_fn,
1601                                        (void *)dir)) {
1602
1603                         if (dir) {
1604                                 SAFE_FREE(dir->fname);
1605                                 SAFE_FREE(dir);
1606                         }
1607                         errno = cli_errno(&srv->cli);
1608
1609                         return NULL;
1610
1611                 }
1612         }
1613         else { /* Server not an empty string ... Check the rest and see what gives */
1614
1615                 if (share[0] == (char)0) {
1616
1617                         if (path[0] != (char)0) { /* Should not have empty share with path */
1618
1619                                 errno = EINVAL;
1620                                 if (dir) {
1621                                         SAFE_FREE(dir->fname);
1622                                         SAFE_FREE(dir);
1623                                 }
1624                                 return NULL;
1625
1626                         }
1627
1628                         /* Check to see if <server><1D>, <server><1B>, or <server><20> translates */
1629                         /* However, we check to see if <server> is an IP address first */
1630
1631                         if (!is_ipaddress(server) &&  /* Not an IP addr so check next */
1632                             (resolve_name(server, &rem_ip, 0x1d) ||   /* Found LMB */
1633                                     resolve_name(server, &rem_ip, 0x1b) )) { /* Found DMB */
1634                                 pstring buserver;
1635
1636                                 dir->dir_type = SMBC_SERVER;
1637
1638                                 /*
1639                                  * Get the backup list ...
1640                                  */
1641
1642
1643                                 if (!name_status_find("*", 0, 0, rem_ip, buserver)) {
1644
1645                                         DEBUG(0, ("Could not get name of local/domain master browser for server %s\n", server));
1646                                         errno = EPERM;  /* FIXME, is this correct */
1647                                         return NULL;
1648
1649                                 }
1650
1651                                 /*
1652                                  * Get a connection to IPC$ on the server if we do not already have one
1653                                  */
1654
1655                                 srv = smbc_server(context, buserver, "IPC$", workgroup, user, password);
1656
1657                                 if (!srv) {
1658                                         DEBUG(0, ("got no contact to IPC$\n"));
1659                                         if (dir) {
1660                                                 SAFE_FREE(dir->fname);
1661                                                 SAFE_FREE(dir);
1662                                         }
1663                                         return NULL;
1664
1665                                 }
1666
1667                                 dir->srv = srv;
1668
1669                                 /* Now, list the servers ... */
1670
1671                                 if (!cli_NetServerEnum(&srv->cli, server, 0x0000FFFE, list_fn,
1672                                                        (void *)dir)) {
1673
1674                                         if (dir) {
1675                                                 SAFE_FREE(dir->fname);
1676                                                 SAFE_FREE(dir);
1677                                         }
1678                                         errno = cli_errno(&srv->cli);
1679                                         return NULL;
1680
1681                                 }
1682
1683                         }
1684                         else {
1685
1686                                 if (resolve_name(server, &rem_ip, 0x20)) {
1687
1688                                         /* Now, list the shares ... */
1689
1690                                         dir->dir_type = SMBC_FILE_SHARE;
1691
1692                                         srv = smbc_server(context, server, "IPC$", workgroup, user, password);
1693
1694                                         if (!srv) {
1695
1696                                                 if (dir) {
1697                                                         SAFE_FREE(dir->fname);
1698                                                         SAFE_FREE(dir);
1699                                                 }
1700                                                 return NULL;
1701
1702                                         }
1703
1704                                         dir->srv = srv;
1705
1706                                         /* Now, list the servers ... */
1707
1708                                         if (cli_RNetShareEnum(&srv->cli, list_fn,
1709                                                               (void *)dir) < 0) {
1710
1711                                                 errno = cli_errno(&srv->cli);
1712                                                 if (dir) {
1713                                                         SAFE_FREE(dir->fname);
1714                                                         SAFE_FREE(dir);
1715                                                 }
1716                                                 return NULL;
1717
1718                                         }
1719
1720                                 }
1721                                 else {
1722
1723                                         errno = ENODEV;   /* Neither the workgroup nor server exists */
1724                                         if (dir) {
1725                                                 SAFE_FREE(dir->fname);
1726                                                 SAFE_FREE(dir);
1727                                         }
1728                                         return NULL;
1729
1730                                 }
1731
1732                         }
1733
1734                 }
1735                 else { /* The server and share are specified ... work from there ... */
1736
1737                         /* Well, we connect to the server and list the directory */
1738
1739                         dir->dir_type = SMBC_FILE_SHARE;
1740
1741                         srv = smbc_server(context, server, share, workgroup, user, password);
1742
1743                         if (!srv) {
1744
1745                                 if (dir) {
1746                                         SAFE_FREE(dir->fname);
1747                                         SAFE_FREE(dir);
1748                                 }
1749                                 return NULL;
1750
1751                         }
1752
1753                         dir->srv = srv;
1754
1755                         /* Now, list the files ... */
1756
1757                         pstrcat(path, "\\*");
1758
1759                         if (cli_list(&srv->cli, path, aDIR | aSYSTEM | aHIDDEN, dir_list_fn,
1760                                      (void *)dir) < 0) {
1761
1762                                 if (dir) {
1763                                         SAFE_FREE(dir->fname);
1764                                         SAFE_FREE(dir);
1765                                 }
1766                                 errno = smbc_errno(context, &srv->cli);
1767                                 return NULL;
1768
1769                         }
1770                 }
1771
1772         }
1773
1774         DLIST_ADD(context->internal->_files, dir);
1775         return dir;
1776
1777 }
1778
1779 /*
1780  * Routine to close a directory
1781  */
1782
1783 static int smbc_closedir_ctx(SMBCCTX *context, SMBCFILE *dir)
1784 {
1785
1786         if (!context || !context->internal ||
1787             !context->internal->_initialized) {
1788
1789                 errno = EINVAL;
1790                 return -1;
1791
1792         }
1793
1794         if (!dir || !DLIST_CONTAINS(context->internal->_files, dir)) {
1795
1796                 errno = EBADF;
1797                 return -1;
1798
1799         }
1800
1801         smbc_remove_dir(dir); /* Clean it up */
1802
1803         DLIST_REMOVE(context->internal->_files, dir);
1804
1805         if (dir) {
1806
1807                 SAFE_FREE(dir->fname);
1808                 SAFE_FREE(dir);    /* Free the space too */
1809
1810         }
1811
1812         return 0;
1813
1814 }
1815
1816 /*
1817  * Routine to get a directory entry
1818  */
1819
1820 struct smbc_dirent *smbc_readdir_ctx(SMBCCTX *context, SMBCFILE *dir)
1821 {
1822         struct smbc_dirent *dirp, *dirent;
1823
1824         /* Check that all is ok first ... */
1825
1826         if (!context || !context->internal ||
1827             !context->internal->_initialized) {
1828
1829                 errno = EINVAL;
1830                 return NULL;
1831
1832         }
1833
1834         if (!dir || !DLIST_CONTAINS(context->internal->_files, dir)) {
1835
1836                 errno = EBADF;
1837                 return NULL;
1838
1839         }
1840
1841         if (dir->file != False) { /* FIXME, should be dir, perhaps */
1842
1843                 errno = ENOTDIR;
1844                 return NULL;
1845
1846         }
1847
1848         if (!dir->dir_next)
1849                 return NULL;
1850         else {
1851
1852                 dirent = dir->dir_next->dirent;
1853
1854                 if (!dirent) {
1855
1856                         errno = ENOENT;
1857                         return NULL;
1858
1859                 }
1860
1861                 /* Hmmm, do I even need to copy it? */
1862
1863                 memcpy(context->internal->_dirent, dirent, dirent->dirlen); /* Copy the dirent */
1864                 dirp = (struct smbc_dirent *)context->internal->_dirent;
1865                 dirp->comment = (char *)(&dirp->name + dirent->namelen + 1);
1866                 dir->dir_next = dir->dir_next->next;
1867
1868                 return (struct smbc_dirent *)context->internal->_dirent;
1869         }
1870
1871 }
1872
1873 /*
1874  * Routine to get directory entries
1875  */
1876
1877 static int smbc_getdents_ctx(SMBCCTX *context, SMBCFILE *dir, struct smbc_dirent *dirp, int count)
1878 {
1879         struct smbc_dir_list *dirlist;
1880         int rem = count, reqd;
1881         char *ndir = (char *)dirp;
1882
1883         /* Check that all is ok first ... */
1884
1885         if (!context || !context->internal ||
1886             !context->internal->_initialized) {
1887
1888                 errno = EINVAL;
1889                 return -1;
1890
1891         }
1892
1893         if (!dir || !DLIST_CONTAINS(context->internal->_files, dir)) {
1894
1895                 errno = EBADF;
1896                 return -1;
1897
1898         }
1899
1900         if (dir->file != False) { /* FIXME, should be dir, perhaps */
1901
1902                 errno = ENOTDIR;
1903                 return -1;
1904
1905         }
1906
1907         /*
1908          * Now, retrieve the number of entries that will fit in what was passed
1909          * We have to figure out if the info is in the list, or we need to
1910          * send a request to the server to get the info.
1911          */
1912
1913         while ((dirlist = dir->dir_next)) {
1914                 struct smbc_dirent *dirent;
1915
1916                 if (!dirlist->dirent) {
1917
1918                         errno = ENOENT;  /* Bad error */
1919                         return -1;
1920
1921                 }
1922
1923                 if (rem < (reqd = (sizeof(struct smbc_dirent) + dirlist->dirent->namelen +
1924                                    dirlist->dirent->commentlen + 1))) {
1925
1926                         if (rem < count) { /* We managed to copy something */
1927
1928                                 errno = 0;
1929                                 return count - rem;
1930
1931                         }
1932                         else { /* Nothing copied ... */
1933
1934                                 errno = EINVAL;  /* Not enough space ... */
1935                                 return -1;
1936
1937                         }
1938
1939                 }
1940
1941                 dirent = dirlist->dirent;
1942
1943                 memcpy(ndir, dirent, reqd); /* Copy the data in ... */
1944
1945                 ((struct smbc_dirent *)ndir)->comment =
1946                         (char *)(&((struct smbc_dirent *)ndir)->name + dirent->namelen + 1);
1947
1948                 ndir += reqd;
1949
1950                 rem -= reqd;
1951
1952                 dir->dir_next = dirlist = dirlist -> next;
1953         }
1954
1955         if (rem == count)
1956                 return 0;
1957         else
1958                 return count - rem;
1959
1960 }
1961
1962 /*
1963  * Routine to create a directory ...
1964  */
1965
1966 static int smbc_mkdir_ctx(SMBCCTX *context, const char *fname, mode_t mode)
1967 {
1968         SMBCSRV *srv;
1969         fstring server, share, user, password, workgroup;
1970         pstring path;
1971
1972         if (!context || !context->internal ||
1973             !context->internal->_initialized) {
1974
1975                 errno = EINVAL;
1976                 return -1;
1977
1978         }
1979
1980         if (!fname) {
1981
1982                 errno = EINVAL;
1983                 return -1;
1984
1985         }
1986
1987         DEBUG(4, ("smbc_mkdir(%s)\n", fname));
1988
1989         smbc_parse_path(context, fname, server, share, path, user, password); /*FIXME, errors*/
1990
1991         if (user[0] == (char)0) fstrcpy(user, context->user);
1992
1993         fstrcpy(workgroup, context->workgroup);
1994
1995         srv = smbc_server(context, server, share, workgroup, user, password);
1996
1997         if (!srv) {
1998
1999                 return -1;  /* errno set by smbc_server */
2000
2001         }
2002
2003         /* if (strncmp(srv->cli.dev, "IPC", 3) == 0) {
2004
2005            mode = aDIR | aRONLY;
2006
2007            }
2008            else if (strncmp(srv->cli.dev, "LPT", 3) == 0) {
2009
2010            if (strcmp(path, "\\") == 0) {
2011
2012            mode = aDIR | aRONLY;
2013
2014            }
2015            else {
2016
2017            mode = aRONLY;
2018            smbc_stat_printjob(srv, path, &size, &m_time);
2019            c_time = a_time = m_time;
2020
2021            }
2022            else { */
2023
2024         if (!cli_mkdir(&srv->cli, path)) {
2025
2026                 errno = smbc_errno(context, &srv->cli);
2027                 return -1;
2028
2029         }
2030
2031         return 0;
2032
2033 }
2034
2035 /*
2036  * Our list function simply checks to see if a directory is not empty
2037  */
2038
2039 static int smbc_rmdir_dirempty = True;
2040
2041 static void rmdir_list_fn(file_info *finfo, const char *mask, void *state)
2042 {
2043
2044         if (strncmp(finfo->name, ".", 1) != 0 && strncmp(finfo->name, "..", 2) != 0)
2045                 smbc_rmdir_dirempty = False;
2046
2047 }
2048
2049 /*
2050  * Routine to remove a directory
2051  */
2052
2053 static int smbc_rmdir_ctx(SMBCCTX *context, const char *fname)
2054 {
2055         SMBCSRV *srv;
2056         fstring server, share, user, password, workgroup;
2057         pstring path;
2058
2059         if (!context || !context->internal ||
2060             !context->internal->_initialized) {
2061
2062                 errno = EINVAL;
2063                 return -1;
2064
2065         }
2066
2067         if (!fname) {
2068
2069                 errno = EINVAL;
2070                 return -1;
2071
2072         }
2073
2074         DEBUG(4, ("smbc_rmdir(%s)\n", fname));
2075
2076         smbc_parse_path(context, fname, server, share, path, user, password); /*FIXME, errors*/
2077
2078         if (user[0] == (char)0) fstrcpy(user, context->user);
2079
2080         fstrcpy(workgroup, context->workgroup);
2081
2082         srv = smbc_server(context, server, share, workgroup, user, password);
2083
2084         if (!srv) {
2085
2086                 return -1;  /* errno set by smbc_server */
2087
2088         }
2089
2090         /* if (strncmp(srv->cli.dev, "IPC", 3) == 0) {
2091
2092            mode = aDIR | aRONLY;
2093
2094            }
2095            else if (strncmp(srv->cli.dev, "LPT", 3) == 0) {
2096
2097            if (strcmp(path, "\\") == 0) {
2098
2099            mode = aDIR | aRONLY;
2100
2101            }
2102            else {
2103
2104            mode = aRONLY;
2105            smbc_stat_printjob(srv, path, &size, &m_time);
2106            c_time = a_time = m_time;
2107
2108            }
2109            else { */
2110
2111         if (!cli_rmdir(&srv->cli, path)) {
2112
2113                 errno = smbc_errno(context, &srv->cli);
2114
2115                 if (errno == EACCES) {  /* Check if the dir empty or not */
2116
2117                         pstring lpath; /* Local storage to avoid buffer overflows */
2118
2119                         smbc_rmdir_dirempty = True;  /* Make this so ... */
2120
2121                         pstrcpy(lpath, path);
2122                         pstrcat(lpath, "\\*");
2123
2124                         if (cli_list(&srv->cli, lpath, aDIR | aSYSTEM | aHIDDEN, rmdir_list_fn,
2125                                      NULL) < 0) {
2126
2127                                 /* Fix errno to ignore latest error ... */
2128
2129                                 DEBUG(5, ("smbc_rmdir: cli_list returned an error: %d\n",
2130                                           smbc_errno(context, &srv->cli)));
2131                                 errno = EACCES;
2132
2133                         }
2134
2135                         if (smbc_rmdir_dirempty)
2136                                 errno = EACCES;
2137                         else
2138                                 errno = ENOTEMPTY;
2139
2140                 }
2141
2142                 return -1;
2143
2144         }
2145
2146         return 0;
2147
2148 }
2149
2150 /*
2151  * Routine to return the current directory position
2152  */
2153
2154 static off_t smbc_telldir_ctx(SMBCCTX *context, SMBCFILE *dir)
2155 {
2156         off_t ret_val; /* Squash warnings about cast */
2157
2158         if (!context || !context->internal ||
2159             !context->internal->_initialized) {
2160
2161                 errno = EINVAL;
2162                 return -1;
2163
2164         }
2165
2166         if (!dir || !DLIST_CONTAINS(context->internal->_files, dir)) {
2167
2168                 errno = EBADF;
2169                 return -1;
2170
2171         }
2172
2173         if (dir->file != False) { /* FIXME, should be dir, perhaps */
2174
2175                 errno = ENOTDIR;
2176                 return -1;
2177
2178         }
2179
2180         /*
2181          * We return the pointer here as the offset
2182          */
2183         ret_val = (int)dir->dir_next;
2184         return ret_val;
2185
2186 }
2187
2188 /*
2189  * A routine to run down the list and see if the entry is OK
2190  */
2191
2192 struct smbc_dir_list *smbc_check_dir_ent(struct smbc_dir_list *list,
2193                                          struct smbc_dirent *dirent)
2194 {
2195
2196         /* Run down the list looking for what we want */
2197
2198         if (dirent) {
2199
2200                 struct smbc_dir_list *tmp = list;
2201
2202                 while (tmp) {
2203
2204                         if (tmp->dirent == dirent)
2205                                 return tmp;
2206
2207                         tmp = tmp->next;
2208
2209                 }
2210
2211         }
2212
2213         return NULL;  /* Not found, or an error */
2214
2215 }
2216
2217
2218 /*
2219  * Routine to seek on a directory
2220  */
2221
2222 static int smbc_lseekdir_ctx(SMBCCTX *context, SMBCFILE *dir, off_t offset)
2223 {
2224         long int l_offset = offset;  /* Handle problems of size */
2225         struct smbc_dirent *dirent = (struct smbc_dirent *)l_offset;
2226         struct smbc_dir_list *list_ent = (struct smbc_dir_list *)NULL;
2227
2228         if (!context || !context->internal ||
2229             !context->internal->_initialized) {
2230
2231                 errno = EINVAL;
2232                 return -1;
2233
2234         }
2235
2236         if (dir->file != False) { /* FIXME, should be dir, perhaps */
2237
2238                 errno = ENOTDIR;
2239                 return -1;
2240
2241         }
2242
2243         /* Now, check what we were passed and see if it is OK ... */
2244
2245         if (dirent == NULL) {  /* Seek to the begining of the list */
2246
2247                 dir->dir_next = dir->dir_list;
2248                 return 0;
2249
2250         }
2251
2252         /* Now, run down the list and make sure that the entry is OK       */
2253         /* This may need to be changed if we change the format of the list */
2254
2255         if ((list_ent = smbc_check_dir_ent(dir->dir_list, dirent)) == NULL) {
2256
2257                 errno = EINVAL;   /* Bad entry */
2258                 return -1;
2259
2260         }
2261
2262         dir->dir_next = list_ent;
2263
2264         return 0;
2265
2266 }
2267
2268 /*
2269  * Routine to fstat a dir
2270  */
2271
2272 static int smbc_fstatdir_ctx(SMBCCTX *context, SMBCFILE *dir, struct stat *st)
2273 {
2274
2275         if (!context || !context->internal ||
2276             !context->internal->_initialized) {
2277
2278                 errno = EINVAL;
2279                 return -1;
2280
2281         }
2282
2283         /* No code yet ... */
2284
2285         return 0;
2286
2287 }
2288
2289 /*
2290  * Open a print file to be written to by other calls
2291  */
2292
2293 static SMBCFILE *smbc_open_print_job_ctx(SMBCCTX *context, const char *fname)
2294 {
2295         fstring server, share, user, password;
2296         pstring path;
2297
2298         if (!context || !context->internal ||
2299             !context->internal->_initialized) {
2300
2301                 errno = EINVAL;
2302                 return NULL;
2303
2304         }
2305
2306         if (!fname) {
2307
2308                 errno = EINVAL;
2309                 return NULL;
2310
2311         }
2312
2313         DEBUG(4, ("smbc_open_print_job_ctx(%s)\n", fname));
2314
2315         smbc_parse_path(context, fname, server, share, path, user, password); /*FIXME, errors*/
2316
2317         /* What if the path is empty, or the file exists? */
2318
2319         return context->open(context, fname, O_WRONLY, 666);
2320
2321 }
2322
2323 /*
2324  * Routine to print a file on a remote server ...
2325  *
2326  * We open the file, which we assume to be on a remote server, and then
2327  * copy it to a print file on the share specified by printq.
2328  */
2329
2330 static int smbc_print_file_ctx(SMBCCTX *c_file, const char *fname, SMBCCTX *c_print, const char *printq)
2331 {
2332         SMBCFILE *fid1, *fid2;
2333         int bytes, saverr, tot_bytes = 0;
2334         char buf[4096];
2335
2336         if (!c_file || !c_file->internal->_initialized || !c_print ||
2337             !c_print->internal->_initialized) {
2338
2339                 errno = EINVAL;
2340                 return -1;
2341
2342         }
2343
2344         if (!fname && !printq) {
2345
2346                 errno = EINVAL;
2347                 return -1;
2348
2349         }
2350
2351         /* Try to open the file for reading ... */
2352
2353         if ((int)(fid1 = c_file->open(c_file, fname, O_RDONLY, 0666)) < 0) {
2354
2355                 DEBUG(3, ("Error, fname=%s, errno=%i\n", fname, errno));
2356                 return -1;  /* smbc_open sets errno */
2357
2358         }
2359
2360         /* Now, try to open the printer file for writing */
2361
2362         if ((int)(fid2 = c_print->open_print_job(c_print, printq)) < 0) {
2363
2364                 saverr = errno;  /* Save errno */
2365                 c_file->close(c_file, fid1);
2366                 errno = saverr;
2367                 return -1;
2368
2369         }
2370
2371         while ((bytes = c_file->read(c_file, fid1, buf, sizeof(buf))) > 0) {
2372
2373                 tot_bytes += bytes;
2374
2375                 if ((c_print->write(c_print, fid2, buf, bytes)) < 0) {
2376
2377                         saverr = errno;
2378                         c_file->close(c_file, fid1);
2379                         c_print->close(c_print, fid2);
2380                         errno = saverr;
2381
2382                 }
2383
2384         }
2385
2386         saverr = errno;
2387
2388         c_file->close(c_file, fid1);  /* We have to close these anyway */
2389         c_print->close(c_print, fid2);
2390
2391         if (bytes < 0) {
2392
2393                 errno = saverr;
2394                 return -1;
2395
2396         }
2397
2398         return tot_bytes;
2399
2400 }
2401
2402 /*
2403  * Routine to list print jobs on a printer share ...
2404  */
2405
2406 static int smbc_list_print_jobs_ctx(SMBCCTX *context, const char *fname, smbc_list_print_job_fn fn)
2407 {
2408         SMBCSRV *srv;
2409         fstring server, share, user, password, workgroup;
2410         pstring path;
2411
2412         if (!context || !context->internal ||
2413             !context->internal->_initialized) {
2414
2415                 errno = EINVAL;
2416                 return -1;
2417
2418         }
2419
2420         if (!fname) {
2421
2422                 errno = EINVAL;
2423                 return -1;
2424
2425         }
2426
2427         DEBUG(4, ("smbc_list_print_jobs(%s)\n", fname));
2428
2429         smbc_parse_path(context, fname, server, share, path, user, password); /*FIXME, errors*/
2430
2431         if (user[0] == (char)0) fstrcpy(user, context->user);
2432
2433         fstrcpy(workgroup, context->workgroup);
2434
2435         srv = smbc_server(context, server, share, workgroup, user, password);
2436
2437         if (!srv) {
2438
2439                 return -1;  /* errno set by smbc_server */
2440
2441         }
2442
2443         if (cli_print_queue(&srv->cli, (void (*)(struct print_job_info *))fn) < 0) {
2444
2445                 errno = smbc_errno(context, &srv->cli);
2446                 return -1;
2447
2448         }
2449
2450         return 0;
2451
2452 }
2453
2454 /*
2455  * Delete a print job from a remote printer share
2456  */
2457
2458 static int smbc_unlink_print_job_ctx(SMBCCTX *context, const char *fname, int id)
2459 {
2460         SMBCSRV *srv;
2461         fstring server, share, user, password, workgroup;
2462         pstring path;
2463         int err;
2464
2465         if (!context || !context->internal ||
2466             !context->internal->_initialized) {
2467
2468                 errno = EINVAL;
2469                 return -1;
2470
2471         }
2472
2473         if (!fname) {
2474
2475                 errno = EINVAL;
2476                 return -1;
2477
2478         }
2479
2480         DEBUG(4, ("smbc_unlink_print_job(%s)\n", fname));
2481
2482         smbc_parse_path(context, fname, server, share, path, user, password); /*FIXME, errors*/
2483
2484         if (user[0] == (char)0) fstrcpy(user, context->user);
2485
2486         fstrcpy(workgroup, context->workgroup);
2487
2488         srv = smbc_server(context, server, share, workgroup, user, password);
2489
2490         if (!srv) {
2491
2492                 return -1;  /* errno set by smbc_server */
2493
2494         }
2495
2496         if ((err = cli_printjob_del(&srv->cli, id)) != 0) {
2497
2498                 if (err < 0)
2499                         errno = smbc_errno(context, &srv->cli);
2500                 else if (err == ERRnosuchprintjob)
2501                         errno = EINVAL;
2502                 return -1;
2503
2504         }
2505
2506         return 0;
2507
2508 }
2509
2510 /*
2511  * Get a new empty handle to fill in with your own info
2512  */
2513 SMBCCTX * smbc_new_context(void)
2514 {
2515         SMBCCTX * context;
2516
2517         context = malloc(sizeof(SMBCCTX));
2518         if (!context) {
2519                 errno = ENOMEM;
2520                 return NULL;
2521         }
2522
2523         ZERO_STRUCTP(context);
2524
2525         context->internal = malloc(sizeof(struct smbc_internal_data));
2526         if (!context->internal) {
2527                 errno = ENOMEM;
2528                 return NULL;
2529         }
2530
2531         ZERO_STRUCTP(context->internal);
2532
2533
2534         /* ADD REASONABLE DEFAULTS */
2535         context->debug            = 0;
2536         context->timeout          = 20000; /* 20 seconds */
2537
2538         context->open             = smbc_open_ctx;
2539         context->creat            = smbc_creat_ctx;
2540         context->read             = smbc_read_ctx;
2541         context->write            = smbc_write_ctx;
2542         context->close            = smbc_close_ctx;
2543         context->unlink           = smbc_unlink_ctx;
2544         context->rename           = smbc_rename_ctx;
2545         context->lseek            = smbc_lseek_ctx;
2546         context->stat             = smbc_stat_ctx;
2547         context->fstat            = smbc_fstat_ctx;
2548         context->opendir          = smbc_opendir_ctx;
2549         context->closedir         = smbc_closedir_ctx;
2550         context->readdir          = smbc_readdir_ctx;
2551         context->getdents         = smbc_getdents_ctx;
2552         context->mkdir            = smbc_mkdir_ctx;
2553         context->rmdir            = smbc_rmdir_ctx;
2554         context->telldir          = smbc_telldir_ctx;
2555         context->lseekdir         = smbc_lseekdir_ctx;
2556         context->fstatdir         = smbc_fstatdir_ctx;
2557         context->open_print_job   = smbc_open_print_job_ctx;
2558         context->print_file       = smbc_print_file_ctx;
2559         context->list_print_jobs  = smbc_list_print_jobs_ctx;
2560         context->unlink_print_job = smbc_unlink_print_job_ctx;
2561
2562         context->callbacks.check_server_fn      = smbc_check_server;
2563         context->callbacks.remove_unused_server_fn = smbc_remove_unused_server;
2564
2565         smbc_default_cache_functions(context);
2566
2567         return context;
2568 }
2569
2570 /*
2571  * Free a context
2572  *
2573  * Returns 0 on success. Otherwise returns 1, the SMBCCTX is _not_ freed
2574  * and thus you'll be leaking memory if not handled properly.
2575  *
2576  */
2577 int smbc_free_context(SMBCCTX * context, int shutdown_ctx)
2578 {
2579         if (!context) {
2580                 errno = EBADF;
2581                 return 1;
2582         }
2583
2584         if (shutdown_ctx) {
2585                 SMBCFILE * f;
2586                 DEBUG(1,("Performing aggressive shutdown.\n"));
2587
2588                 f = context->internal->_files;
2589                 while (f) {
2590                         context->close(context, f);
2591                         f = f->next;
2592                 }
2593                 context->internal->_files = NULL;
2594
2595                 /* First try to remove the servers the nice way. */
2596                 if (context->callbacks.purge_cached_fn(context)) {
2597                         SMBCSRV * s;
2598                         DEBUG(1, ("Could not purge all servers, Nice way shutdown failed.\n"));
2599                         s = context->internal->_servers;
2600                         while (s) {
2601                                 cli_shutdown(&s->cli);
2602                                 context->callbacks.remove_cached_srv_fn(context, s);
2603                                 SAFE_FREE(s);
2604                                 s = s->next;
2605                         }
2606                         context->internal->_servers = NULL;
2607                 }
2608         }
2609         else {
2610                 /* This is the polite way */
2611                 if (context->callbacks.purge_cached_fn(context)) {
2612                         DEBUG(1, ("Could not purge all servers, free_context failed.\n"));
2613                         errno = EBUSY;
2614                         return 1;
2615                 }
2616                 if (context->internal->_servers) {
2617                         DEBUG(1, ("Active servers in context, free_context failed.\n"));
2618                         errno = EBUSY;
2619                         return 1;
2620                 }
2621                 if (context->internal->_files) {
2622                         DEBUG(1, ("Active files in context, free_context failed.\n"));
2623                         errno = EBUSY;
2624                         return 1;
2625                 }
2626         }
2627
2628         /* Things we have to clean up */
2629         SAFE_FREE(context->workgroup);
2630         SAFE_FREE(context->netbios_name);
2631         SAFE_FREE(context->user);
2632
2633         DEBUG(3, ("Context %p succesfully freed\n", context));
2634         SAFE_FREE(context->internal);
2635         SAFE_FREE(context);
2636         return 0;
2637 }
2638
2639
2640 /*
2641  * Initialise the library etc
2642  *
2643  * We accept a struct containing handle information.
2644  * valid values for info->debug from 0 to 100,
2645  * and insist that info->fn must be non-null.
2646  */
2647 SMBCCTX * smbc_init_context(SMBCCTX * context)
2648 {
2649         pstring conf;
2650         int pid;
2651         char *user = NULL, *home = NULL;
2652
2653         if (!context || !context->internal) {
2654                 errno = EBADF;
2655                 return NULL;
2656         }
2657
2658         /* Do not initialise the same client twice */
2659         if (context->internal->_initialized) {
2660                 return 0;
2661         }
2662
2663         if (!context->callbacks.auth_fn || context->debug < 0 || context->debug > 100) {
2664
2665                 errno = EINVAL;
2666                 return NULL;
2667
2668         }
2669
2670         if (!smbc_initialized) {
2671                 /* Do some library wide intialisations the first time we get called */
2672
2673                 /* Set this to what the user wants */
2674                 DEBUGLEVEL = context->debug;
2675
2676                 setup_logging( "libsmbclient", True);
2677
2678                 /* Here we would open the smb.conf file if needed ... */
2679
2680                 home = getenv("HOME");
2681
2682                 slprintf(conf, sizeof(conf), "%s/.smb/smb.conf", home);
2683
2684                 load_interfaces();  /* Load the list of interfaces ... */
2685
2686                 in_client = True; /* FIXME, make a param */
2687
2688                 if (!lp_load(conf, True, False, False)) {
2689
2690                         /*
2691                          * Well, if that failed, try the dyn_CONFIGFILE
2692                          * Which points to the standard locn, and if that
2693                          * fails, silently ignore it and use the internal
2694                          * defaults ...
2695                          */
2696
2697                    if (!lp_load(dyn_CONFIGFILE, True, False, False)) {
2698                       DEBUG(5, ("Could not load either config file: %s or %s\n",
2699                              conf, dyn_CONFIGFILE));
2700                    }
2701                 }
2702
2703                 reopen_logs();  /* Get logging working ... */
2704
2705                 /*
2706                  * Block SIGPIPE (from lib/util_sock.c: write())
2707                  * It is not needed and should not stop execution
2708                  */
2709                 BlockSignals(True, SIGPIPE);
2710
2711                 /* Done with one-time initialisation */
2712                 smbc_initialized = 1;
2713
2714         }
2715
2716         if (!context->user) {
2717                 /*
2718                  * FIXME: Is this the best way to get the user info?
2719                  */
2720                 user = getenv("USER");
2721                 /* walk around as "guest" if no username can be found */
2722                 if (!user) context->user = strdup("guest");
2723                 else context->user = strdup(user);
2724         }
2725
2726         if (!context->netbios_name) {
2727                 /*
2728                  * We try to get our netbios name from the config. If that fails we fall
2729                  * back on constructing our netbios name from our hostname etc
2730                  */
2731                 if (global_myname()) {
2732                         context->netbios_name = strdup(global_myname());
2733                 }
2734                 else {
2735                         /*
2736                          * Hmmm, I want to get hostname as well, but I am too lazy for the moment
2737                          */
2738                         pid = sys_getpid();
2739                         context->netbios_name = malloc(17);
2740                         if (!context->netbios_name) {
2741                                 errno = ENOMEM;
2742                                 return NULL;
2743                         }
2744                         slprintf(context->netbios_name, 16, "smbc%s%d", context->user, pid);
2745                 }
2746         }
2747
2748         DEBUG(1, ("Using netbios name %s.\n", context->netbios_name));
2749
2750         if (!context->workgroup) {
2751                 if (lp_workgroup()) {
2752                         context->workgroup = strdup(lp_workgroup());
2753                 }
2754                 else {
2755                         /* TODO: Think about a decent default workgroup */
2756                         context->workgroup = strdup("samba");
2757                 }
2758         }
2759
2760         DEBUG(1, ("Using workgroup %s.\n", context->workgroup));
2761
2762         /* shortest timeout is 1 second */
2763         if (context->timeout > 0 && context->timeout < 1000)
2764                 context->timeout = 1000;
2765
2766         /*
2767          * FIXME: Should we check the function pointers here?
2768          */
2769
2770         context->internal->_initialized = 1;
2771
2772         return context;
2773 }