source/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 "libsmbclient.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 extern pstring global_myname;
  50
  51 /*
  52  * Is the logging working / configfile read ?
  53  */
  54 static int smbc_initialized = 0;
  55
  56 /*
  57  * Function to parse a path and turn it into components
  58  *
  59  * We accept smb://[[[domain;]user[:password@]]server[/share[/path[/file]]]]
  60  *
  61  * smb://       means show all the workgroups
  62  * smb://name/  means, if name<1D> or name<1B> exists, list servers in workgroup,
  63  *              else, if name<20> exists, list all shares for server ...
  64  */
  65
  66 static const char *smbc_prefix = "smb:";
  67
  68 static int
  69 smbc_parse_path(SMBCCTX *context, const char *fname, char *server, char *share, char *path,
  70                 char *user, char *password) /* FIXME, lengths of strings */
  71 {
  72         static pstring s;
  73         pstring userinfo;
  74         char *p;
  75         char *q, *r;
  76         int len;
  77
  78         server[0] = share[0] = path[0] = user[0] = password[0] = (char)0;
  79         pstrcpy(s, fname);
  80
  81         /*  clean_fname(s);  causing problems ... */
  82
  83         /* see if it has the right prefix */
  84         len = strlen(smbc_prefix);
  85         if (strncmp(s,smbc_prefix,len) ||
  86             (s[len] != '/' && s[len] != 0)) return -1; /* What about no smb: ? */
  87
  88         p = s + len;
  89
  90         /* Watch the test below, we are testing to see if we should exit */
  91
  92         if (strncmp(p, "//", 2) && strncmp(p, "\\\\", 2)) {
  93
  94                 return -1;
  95
  96         }
  97
  98         p += 2;  /* Skip the // or \\  */
  99
 100         if (*p == (char)0)
 101                 return 0;
 102
 103         if (*p == '/') {
 104
 105                 strncpy(server, context->workgroup,
 106                         (strlen(context->workgroup) < 16)?strlen(context->workgroup):16);
 107                 return 0;
 108
 109         }
 110
 111         /*
 112          * ok, its for us. Now parse out the server, share etc.
 113          *
 114          * However, we want to parse out [[domain;]user[:password]@] if it
 115          * exists ...
 116          */
 117
 118         /* check that '@' occurs before '/', if '/' exists at all */
 119         q = strchr_m(p, '@');
 120         r = strchr_m(p, '/');
 121         if (q && (!r || q < r)) {
 122                 pstring username, passwd, domain;
 123                 char *u = userinfo;
 124
 125                 next_token(&p, userinfo, "@", sizeof(fstring));
 126
 127                 username[0] = passwd[0] = domain[0] = 0;
 128
 129                 if (strchr_m(u, ';')) {
 130
 131                         next_token(&u, domain, ";", sizeof(fstring));
 132
 133                 }
 134
 135                 if (strchr_m(u, ':')) {
 136
 137                         next_token(&u, username, ":", sizeof(fstring));
 138
 139                         pstrcpy(passwd, u);
 140
 141                 }
 142                 else {
 143
 144                         pstrcpy(username, u);
 145
 146                 }
 147
 148                 if (username[0])
 149                         strncpy(user, username, sizeof(fstring));  /* FIXME, size and domain */
 150
 151                 if (passwd[0])
 152                         strncpy(password, passwd, sizeof(fstring)); /* FIXME, size */
 153
 154         }
 155
 156         if (!next_token(&p, server, "/", sizeof(fstring))) {
 157
 158                 return -1;
 159
 160         }
 161
 162         if (*p == (char)0) return 0;  /* That's it ... */
 163
 164         if (!next_token(&p, share, "/", sizeof(fstring))) {
 165
 166                 return -1;
 167
 168         }
 169
 170         pstrcpy(path, p);
 171
 172         all_string_sub(path, "/", "\\", 0);
 173
 174         return 0;
 175 }
 176
 177 /*
 178  * Convert an SMB error into a UNIX error ...
 179  */
 180
 181 static int smbc_errno(SMBCCTX *context, struct cli_state *c)
 182 {
 183         int ret = cli_errno(c);
 184
 185         if (cli_is_dos_error(c)) {
 186                 uint8 eclass;
 187                 uint32 ecode;
 188
 189                 cli_dos_error(c, &eclass, &ecode);
 190
 191                 DEBUG(3,("smbc_error %d %d (0x%x) -> %d\n",
 192                          (int)eclass, (int)ecode, (int)ecode, ret));
 193         } else {
 194                 NTSTATUS status;
 195
 196                 status = cli_nt_error(c);
 197
 198                 DEBUG(3,("smbc errno %s -> %d\n",
 199                          nt_errstr(status), ret));
 200         }
 201
 202         return ret;
 203 }
 204
 205 /*
 206  * Check a server_fd.
 207  * returns 0 if the server is in shape. Returns 1 on error
 208  *
 209  * Also useable outside libsmbclient to enable external cache
 210  * to do some checks too.
 211  */
 212 int smbc_check_server(SMBCCTX * context, SMBCSRV * server)
 213 {
 214         if ( send_keepalive(server->cli.fd) == False )
 215                 return 1;
 216
 217         /* connection is ok */
 218         return 0;
 219 }
 220
 221 /*
 222  * Remove a server from the list server_table if it's unused.
 223  * On success, 0 is returned. 1 is returned if the server could not be removed.
 224  *
 225  * Also useable outside libsmbclient
 226  */
 227 int smbc_remove_unused_server(SMBCCTX * context, SMBCSRV * srv)
 228 {
 229         SMBCFILE * file;
 230
 231         /* are we being fooled ? */
 232         if (!context || !context->_initialized || !srv) return 1;
 233
 234
 235         /* Check all open files/directories for a relation with this server */
 236         for (file = context->_files; file; file=file->next) {
 237                 if (file->srv == srv) {
 238                         /* Still used */
 239                         DEBUG(3, ("smbc_remove_usused_server: %p still used by %p.\n",
 240                                   srv, file));
 241                         return 1;
 242                 }
 243         }
 244
 245         DLIST_REMOVE(context->_servers, srv);
 246
 247         cli_shutdown(&srv->cli);
 248
 249         DEBUG(3, ("smbc_remove_usused_server: %p removed.\n", srv));
 250
 251         context->callbacks.remove_cached_srv_fn(context, srv);
 252
 253         SAFE_FREE(srv);
 254
 255         return 0;
 256 }
 257
 258 /*
 259  * Connect to a server, possibly on an existing connection
 260  *
 261  * Here, what we want to do is: If the server and username
 262  * match an existing connection, reuse that, otherwise, establish a
 263  * new connection.
 264  *
 265  * If we have to create a new connection, call the auth_fn to get the
 266  * info we need, unless the username and password were passed in.
 267  */
 268
 269 SMBCSRV *smbc_server(SMBCCTX *context,
 270                      char *server, char *share,
 271                      char *workgroup, char *username,
 272                      char *password)
 273 {
 274         SMBCSRV *srv=NULL;
 275         int auth_called = 0;
 276         struct cli_state c;
 277         struct nmb_name called, calling;
 278         char *p, *server_n = server;
 279         fstring group;
 280         pstring ipenv;
 281         struct in_addr ip;
 282         int tried_reverse = 0;
 283
 284         zero_ip(&ip);
 285         ZERO_STRUCT(c);
 286
 287         if (server[0] == 0) {
 288                 errno = EPERM;
 289                 return NULL;
 290         }
 291
 292  check_server_cache:
 293
 294         srv = context->callbacks.get_cached_srv_fn(context, server, share,
 295                                                    workgroup, username);
 296
 297         if (!auth_called && !srv && (!username[0] || !password[0])) {
 298                 context->callbacks.auth_fn(server, share, workgroup, sizeof(fstring),
 299                              username, sizeof(fstring), password, sizeof(fstring));
 300                 /*
 301                  * However, smbc_auth_fn may have picked up info relating to an
 302                  * existing connection, so try for an existing connection again ...
 303                  */
 304                 auth_called = 1;
 305                 goto check_server_cache;
 306
 307         }
 308
 309         if (srv) {
 310                 if (context->callbacks.check_server_fn(context, srv)) {
 311                         /*
 312                          * This server is no good anymore
 313                          * Try to remove it and check for more possible servers in the cache
 314                          */
 315                         if (context->callbacks.remove_unused_server_fn(context, srv)) {
 316                                 /*
 317                                  * We could not remove the server completely, remove it from the cache
 318                                  * so we will not get it again. It will be removed when the last file/dir
 319                                  * is closed.
 320                                  */
 321                                 context->callbacks.remove_cached_srv_fn(context, srv);
 322                         }
 323
 324                         /*
 325                          * Maybe there are more cached connections to this server
 326                          */
 327                         goto check_server_cache;
 328                 }
 329                 return srv;
 330         }
 331
 332         make_nmb_name(&calling, context->netbios_name, 0x0);
 333         make_nmb_name(&called , server, 0x20);
 334
 335         DEBUG(4,("smbc_server: server_n=[%s] server=[%s]\n", server_n, server));
 336
 337         if ((p=strchr_m(server_n,'#')) &&
 338             (strcmp(p+1,"1D")==0 || strcmp(p+1,"01")==0)) {
 339
 340                 fstrcpy(group, server_n);
 341                 p = strchr_m(group,'#');
 342                 *p = 0;
 343
 344         }
 345
 346         DEBUG(4,(" -> server_n=[%s] server=[%s]\n", server_n, server));
 347
 348  again:
 349         slprintf(ipenv,sizeof(ipenv)-1,"HOST_%s", server_n);
 350
 351         zero_ip(&ip);
 352
 353         /* have to open a new connection */
 354         if (!cli_initialise(&c)) {
 355                 errno = ENOENT;
 356                 return NULL;
 357         }
 358
 359         c.timeout = context->timeout;
 360
 361         if (!cli_connect(&c, server_n, &ip)) {
 362                 cli_shutdown(&c);
 363                 errno = ENOENT;
 364                 return NULL;
 365         }
 366
 367         if (!cli_session_request(&c, &calling, &called)) {
 368                 cli_shutdown(&c);
 369                 if (strcmp(called.name, "*SMBSERVER")) {
 370                         make_nmb_name(&called , "*SMBSERVER", 0x20);
 371                         goto again;
 372                 }
 373                 else {  /* Try one more time, but ensure we don't loop */
 374
 375                   /* Only try this if server is an IP address ... */
 376
 377                   if (is_ipaddress(server) && !tried_reverse) {
 378                     fstring remote_name;
 379                     struct in_addr rem_ip;
 380
 381                     if ((rem_ip.s_addr=inet_addr(server)) == INADDR_NONE) {
 382                       DEBUG(4, ("Could not convert IP address %s to struct in_addr\n", server));
 383                       errno = ENOENT;
 384                       return NULL;
 385                     }
 386
 387                     tried_reverse++; /* Yuck */
 388
 389                     if (name_status_find("*", 0, 0, rem_ip, remote_name)) {
 390                       make_nmb_name(&called, remote_name, 0x20);
 391                       goto again;
 392                     }
 393
 394
 395                   }
 396                 }
 397                 errno = ENOENT;
 398                 return NULL;
 399         }
 400
 401         DEBUG(4,(" session request ok\n"));
 402
 403         if (!cli_negprot(&c)) {
 404                 cli_shutdown(&c);
 405                 errno = ENOENT;
 406                 return NULL;
 407         }
 408
 409         if (!cli_session_setup(&c, username,
 410                                password, strlen(password),
 411                                password, strlen(password),
 412                                workgroup) &&
 413             /* try an anonymous login if it failed */
 414             !cli_session_setup(&c, "", "", 1,"", 0, workgroup)) {
 415                 cli_shutdown(&c);
 416                 errno = EPERM;
 417                 return NULL;
 418         }
 419
 420         DEBUG(4,(" session setup ok\n"));
 421
 422         if (!cli_send_tconX(&c, share, "?????",
 423                             password, strlen(password)+1)) {
 424                 errno = smbc_errno(context, &c);
 425                 cli_shutdown(&c);
 426                 return NULL;
 427         }
 428
 429         DEBUG(4,(" tconx ok\n"));
 430
 431         /*
 432          * Ok, we have got a nice connection
 433          * Let's find a free server_fd
 434          */
 435
 436         srv = (SMBCSRV *)malloc(sizeof(*srv));
 437         if (!srv) {
 438                 errno = ENOMEM;
 439                 goto failed;
 440         }
 441
 442         ZERO_STRUCTP(srv);
 443         srv->cli = c;
 444         srv->dev = (dev_t)(str_checksum(server) ^ str_checksum(share));
 445
 446         /* now add it to the cache (internal or external) */
 447         if (context->callbacks.add_cached_srv_fn(context, srv, server, share, workgroup, username)) {
 448                 DEBUG(3, (" Failed to add server to cache\n"));
 449                 goto failed;
 450         }
 451
 452
 453         DEBUG(2, ("Server connect ok: //%s/%s: %p\n",
 454                   server, share, srv));
 455
 456         return srv;
 457
 458  failed:
 459         cli_shutdown(&c);
 460         if (!srv) return NULL;
 461
 462         SAFE_FREE(srv);
 463         return NULL;
 464 }
 465
 466 /*
 467  * Routine to open() a file ...
 468  */
 469
 470 static SMBCFILE *smbc_open_ctx(SMBCCTX *context, const char *fname, int flags, mode_t mode)
 471 {
 472         fstring server, share, user, password, workgroup;
 473         pstring path;
 474         SMBCSRV *srv   = NULL;
 475         SMBCFILE *file = NULL;
 476         int fd;
 477
 478         if (!context || !context->_initialized) {
 479
 480                 errno = EINVAL;  /* Best I can think of ... */
 481                 return NULL;
 482
 483         }
 484
 485         if (!fname) {
 486
 487                 errno = EINVAL;
 488                 return NULL;
 489
 490         }
 491
 492         smbc_parse_path(context, fname, server, share, path, user, password); /* FIXME, check errors */
 493
 494         if (user[0] == (char)0) pstrcpy(user, context->user);
 495
 496         pstrcpy(workgroup, context->workgroup);
 497
 498         srv = smbc_server(context, server, share, workgroup, user, password);
 499
 500         if (!srv) {
 501
 502                 if (errno == EPERM) errno = EACCES;
 503                 return NULL;  /* smbc_server sets errno */
 504
 505         }
 506
 507         /* Hmmm, the test for a directory is suspect here ... FIXME */
 508
 509         if (strlen(path) > 0 && path[strlen(path) - 1] == '\\') {
 510
 511                 fd = -1;
 512
 513         }
 514         else {
 515
 516                 file = malloc(sizeof(SMBCFILE));
 517
 518                 if (!file) {
 519
 520                         errno = ENOMEM;
 521                         return NULL;
 522
 523                 }
 524
 525                 ZERO_STRUCTP(file);
 526
 527                 if ((fd = cli_open(&srv->cli, path, flags, DENY_NONE)) < 0) {
 528
 529                         /* Handle the error ... */
 530
 531                         SAFE_FREE(file);
 532                         errno = smbc_errno(context, &srv->cli);
 533                         return NULL;
 534
 535                 }
 536
 537                 /* Fill in file struct */
 538
 539                 file->cli_fd  = fd;
 540                 file->fname   = strdup(fname);
 541                 file->srv     = srv;
 542                 file->offset  = 0;
 543                 file->file    = True;
 544
 545                 DLIST_ADD(context->_files, file);
 546                 return file;
 547
 548         }
 549
 550         /* Check if opendir needed ... */
 551
 552         if (fd == -1) {
 553                 int eno = 0;
 554
 555                 eno = smbc_errno(context, &srv->cli);
 556                 file = context->opendir(context, fname);
 557                 if (!file) errno = eno;
 558                 return file;
 559
 560         }
 561
 562         errno = EINVAL; /* FIXME, correct errno ? */
 563         return NULL;
 564
 565 }
 566
 567 /*
 568  * Routine to create a file
 569  */
 570
 571 static int creat_bits = O_WRONLY | O_CREAT | O_TRUNC; /* FIXME: Do we need this */
 572
 573 static SMBCFILE *smbc_creat_ctx(SMBCCTX *context, const char *path, mode_t mode)
 574 {
 575
 576         if (!context || !context->_initialized) {
 577
 578                 errno = EINVAL;
 579                 return NULL;
 580
 581         }
 582
 583         return smbc_open_ctx(context, path, creat_bits, mode);
 584 }
 585
 586 /*
 587  * Routine to read() a file ...
 588  */
 589
 590 static ssize_t smbc_read_ctx(SMBCCTX *context, SMBCFILE *file, void *buf, size_t count)
 591 {
 592         int ret;
 593
 594         if (!context || !context->_initialized) {
 595
 596                 errno = EINVAL;
 597                 return -1;
 598
 599         }
 600
 601         DEBUG(4, ("smbc_read(%p, %d)\n", file, (int)count));
 602
 603         if (!file || !DLIST_CONTAINS(context->_files, file)) {
 604
 605                 errno = EBADF;
 606                 return -1;
 607
 608         }
 609
 610         /* Check that the buffer exists ... */
 611
 612         if (buf == NULL) {
 613
 614                 errno = EINVAL;
 615                 return -1;
 616
 617         }
 618
 619         ret = cli_read(&file->srv->cli, file->cli_fd, buf, file->offset, count);
 620
 621         if (ret < 0) {
 622
 623                 errno = smbc_errno(context, &file->srv->cli);
 624                 return -1;
 625
 626         }
 627
 628         file->offset += ret;
 629
 630         DEBUG(4, ("  --> %d\n", ret));
 631
 632         return ret;  /* Success, ret bytes of data ... */
 633
 634 }
 635
 636 /*
 637  * Routine to write() a file ...
 638  */
 639
 640 static ssize_t smbc_write_ctx(SMBCCTX *context, SMBCFILE *file, void *buf, size_t count)
 641 {
 642         int ret;
 643
 644         if (!context || context->_initialized) {
 645
 646                 errno = EINVAL;
 647                 return -1;
 648
 649         }
 650
 651         if (!file || !DLIST_CONTAINS(context->_files, file)) {
 652
 653                 errno = EBADF;
 654                 return -1;
 655
 656         }
 657
 658         /* Check that the buffer exists ... */
 659
 660         if (buf == NULL) {
 661
 662                 errno = EINVAL;
 663                 return -1;
 664
 665         }
 666
 667         ret = cli_write(&file->srv->cli, file->cli_fd, 0, buf, file->offset, count);
 668
 669         if (ret <= 0) {
 670
 671                 errno = smbc_errno(context, &file->srv->cli);
 672                 return -1;
 673
 674         }
 675
 676         file->offset += ret;
 677
 678         return ret;  /* Success, 0 bytes of data ... */
 679 }
 680
 681 /*
 682  * Routine to close() a file ...
 683  */
 684
 685 static int smbc_close_ctx(SMBCCTX *context, SMBCFILE *file)
 686 {
 687         SMBCSRV *srv;
 688
 689         if (!context || !context->_initialized) {
 690
 691                 errno = EINVAL;
 692                 return -1;
 693
 694         }
 695
 696         if (!file || !DLIST_CONTAINS(context->_files, file)) {
 697
 698                 errno = EBADF;
 699                 return -1;
 700
 701         }
 702
 703         /* IS a dir ... */
 704         if (!file->file) {
 705
 706                 return context->closedir(context, file);
 707
 708         }
 709
 710         if (!cli_close(&file->srv->cli, file->cli_fd)) {
 711
 712                 DEBUG(3, ("cli_close failed on %s. purging server.\n",
 713                           file->fname));
 714                 /* Deallocate slot and remove the server
 715                  * from the server cache if unused */
 716                 errno = smbc_errno(context, &file->srv->cli);
 717                 srv = file->srv;
 718                 DLIST_REMOVE(context->_files, file);
 719                 SAFE_FREE(file->fname);
 720                 SAFE_FREE(file);
 721                 context->callbacks.remove_unused_server_fn(context, srv);
 722
 723                 return -1;
 724
 725         }
 726
 727         if (!file->file) {
 728
 729                 return context->closedir(context, file);
 730
 731         }
 732
 733         if (!cli_close(&file->srv->cli, file->cli_fd)) {
 734                 DEBUG(3, ("cli_close failed on %s. purging server.\n",
 735                           file->fname));
 736                 /* Deallocate slot and remove the server
 737                  * from the server cache if unused */
 738                 errno = smbc_errno(context, &file->srv->cli);
 739                 srv = file->srv;
 740                 DLIST_REMOVE(context->_files, file);
 741                 SAFE_FREE(file->fname);
 742                 SAFE_FREE(file);
 743                 context->callbacks.remove_unused_server_fn(context, srv);
 744
 745                 return -1;
 746         }
 747
 748         DLIST_REMOVE(context->_files, file);
 749         SAFE_FREE(file->fname);
 750         SAFE_FREE(file);
 751
 752         return 0;
 753 }
 754
 755 /*
 756  * Get info from an SMB server on a file. Use a qpathinfo call first
 757  * and if that fails, use getatr, as Win95 sometimes refuses qpathinfo
 758  */
 759 static BOOL smbc_getatr(SMBCCTX * context, SMBCSRV *srv, char *path,
 760                  uint16 *mode, size_t *size,
 761                  time_t *c_time, time_t *a_time, time_t *m_time,
 762                  SMB_INO_T *ino)
 763 {
 764
 765         if (!context || !context->_initialized) {
 766
 767                 errno = EINVAL;
 768                 return -1;
 769
 770         }
 771
 772         DEBUG(4,("smbc_getatr: sending qpathinfo\n"));
 773
 774         if (!srv->no_pathinfo2 &&
 775             cli_qpathinfo2(&srv->cli, path, c_time, a_time, m_time, NULL,
 776                            size, mode, ino)) return True;
 777
 778         /* if this is NT then don't bother with the getatr */
 779         if (srv->cli.capabilities & CAP_NT_SMBS) return False;
 780
 781         if (cli_getatr(&srv->cli, path, mode, size, m_time)) {
 782                 a_time = c_time = m_time;
 783                 srv->no_pathinfo2 = True;
 784                 return True;
 785         }
 786
 787         return False;
 788
 789 }
 790
 791 /*
 792  * Routine to unlink() a file
 793  */
 794
 795 static int smbc_unlink_ctx(SMBCCTX *context, const char *fname)
 796 {
 797         fstring server, share, user, password, workgroup;
 798         pstring path;
 799         SMBCSRV *srv = NULL;
 800
 801         if (!context || context->_initialized) {
 802
 803                 errno = EINVAL;  /* Best I can think of ... */
 804                 return -1;
 805
 806         }
 807
 808         if (!fname) {
 809
 810                 errno = EINVAL;
 811                 return -1;
 812
 813         }
 814
 815         smbc_parse_path(context, fname, server, share, path, user, password); /* FIXME, check errors */
 816
 817         if (user[0] == (char)0) pstrcpy(user, context->user);
 818
 819         pstrcpy(workgroup, context->workgroup);
 820
 821         srv = smbc_server(context, server, share, workgroup, user, password);
 822
 823         if (!srv) {
 824
 825                 return -1;  /* smbc_server sets errno */
 826
 827         }
 828
 829         /*  if (strncmp(srv->cli.dev, "LPT", 3) == 0) {
 830
 831     int job = smbc_stat_printjob(srv, path, NULL, NULL);
 832     if (job == -1) {
 833
 834       return -1;
 835
 836     }
 837     if ((err = cli_printjob_del(&srv->cli, job)) != 0) {
 838
 839
 840       return -1;
 841
 842     }
 843     } else */
 844
 845         if (!cli_unlink(&srv->cli, path)) {
 846
 847                 errno = smbc_errno(context, &srv->cli);
 848
 849                 if (errno == EACCES) { /* Check if the file is a directory */
 850
 851                         int saverr = errno;
 852                         size_t size = 0;
 853                         uint16 mode = 0;
 854                         time_t m_time = 0, a_time = 0, c_time = 0;
 855                         SMB_INO_T ino = 0;
 856
 857                         if (!smbc_getatr(context, srv, path, &mode, &size,
 858                                          &c_time, &a_time, &m_time, &ino)) {
 859
 860                                 /* Hmmm, bad error ... What? */
 861
 862                                 errno = smbc_errno(context, &srv->cli);
 863                                 return -1;
 864
 865                         }
 866                         else {
 867
 868                                 if (IS_DOS_DIR(mode))
 869                                         errno = EISDIR;
 870                                 else
 871                                         errno = saverr;  /* Restore this */
 872
 873                         }
 874                 }
 875
 876                 return -1;
 877
 878         }
 879
 880         return 0;  /* Success ... */
 881
 882 }
 883
 884 /*
 885  * Routine to rename() a file
 886  */
 887
 888 static int smbc_rename_ctx(SMBCCTX *ocontext, const char *oname,
 889                            SMBCCTX *ncontext, const char *nname)
 890 {
 891         fstring server1, share1, server2, share2, user1, user2, password1, password2, workgroup;
 892         pstring path1, path2;
 893         SMBCSRV *srv = NULL;
 894
 895         if (!ocontext || !ncontext ||
 896             !ocontext->_initialized || !ncontext->_initialized) {
 897
 898                 errno = EINVAL;  /* Best I can think of ... */
 899                 return -1;
 900
 901         }
 902
 903         if (!oname || !nname) {
 904
 905                 errno = EINVAL;
 906                 return -1;
 907
 908         }
 909
 910         DEBUG(4, ("smbc_rename(%s,%s)\n", oname, nname));
 911
 912         smbc_parse_path(ocontext, oname, server1, share1, path1, user1, password1);
 913
 914         if (user1[0] == (char)0) pstrcpy(user1, ocontext->user);
 915
 916         smbc_parse_path(ncontext, nname, server2, share2, path2, user2, password2);
 917
 918         if (user2[0] == (char)0) pstrcpy(user2, ncontext->user);
 919
 920         if (strcmp(server1, server2) || strcmp(share1, share2) ||
 921             strcmp(user1, user2)) {
 922
 923                 /* Can't rename across file systems, or users?? */
 924
 925                 errno = EXDEV;
 926                 return -1;
 927
 928         }
 929
 930         pstrcpy(workgroup, ocontext->workgroup);
 931         /* HELP !!! Which workgroup should I use ? Or are they always the same -- Tom */
 932         srv = smbc_server(ocontext, server1, share1, workgroup, user1, password1);
 933         if (!srv) {
 934
 935                 return -1;
 936
 937         }
 938
 939         if (!cli_rename(&srv->cli, path1, path2)) {
 940                 int eno = smbc_errno(ocontext, &srv->cli);
 941
 942                 if (eno != EEXIST ||
 943                     !cli_unlink(&srv->cli, path2) ||
 944                     !cli_rename(&srv->cli, path1, path2)) {
 945
 946                         errno = eno;
 947                         return -1;
 948
 949                 }
 950         }
 951
 952         return 0; /* Success */
 953
 954 }
 955
 956 /*
 957  * A routine to lseek() a file
 958  */
 959
 960 static off_t smbc_lseek_ctx(SMBCCTX *context, SMBCFILE *file, off_t offset, int whence)
 961 {
 962         size_t size;
 963
 964         if (!context || !context->_initialized) {
 965
 966                 errno = EINVAL;
 967                 return -1;
 968
 969         }
 970
 971         if (!file || !DLIST_CONTAINS(context->_files, file)) {
 972
 973                 errno = EBADF;
 974                 return -1;
 975
 976         }
 977
 978         if (!file->file) {
 979
 980                 errno = EINVAL;
 981                 return -1;      /* Can't lseek a dir ... */
 982
 983         }
 984
 985         switch (whence) {
 986         case SEEK_SET:
 987                 file->offset = offset;
 988                 break;
 989
 990         case SEEK_CUR:
 991                 file->offset += offset;
 992                 break;
 993
 994         case SEEK_END:
 995                 if (!cli_qfileinfo(&file->srv->cli, file->cli_fd, NULL, &size, NULL, NULL,
 996                                    NULL, NULL, NULL) &&
 997                     !cli_getattrE(&file->srv->cli, file->cli_fd, NULL, &size, NULL, NULL,
 998                                   NULL)) {
 999
1000                         errno = EINVAL;
1001                         return -1;
1002                 }
1003                 file->offset = size + offset;
1004                 break;
1005
1006         default:
1007                 errno = EINVAL;
1008                 break;
1009
1010         }
1011
1012         return file->offset;
1013
1014 }
1015
1016 /*
1017  * Generate an inode number from file name for those things that need it
1018  */
1019
1020 static
1021 ino_t smbc_inode(SMBCCTX *context, const char *name)
1022 {
1023
1024         if (!context || !context->_initialized) {
1025
1026                 errno = EINVAL;
1027                 return -1;
1028
1029         }
1030
1031         if (!*name) return 2; /* FIXME, why 2 ??? */
1032         return (ino_t)str_checksum(name);
1033
1034 }
1035
1036 /*
1037  * Routine to put basic stat info into a stat structure ... Used by stat and
1038  * fstat below.
1039  */
1040
1041 static
1042 int smbc_setup_stat(SMBCCTX *context, struct stat *st, char *fname, size_t size, int mode)
1043 {
1044
1045         st->st_mode = 0;
1046
1047         if (IS_DOS_DIR(mode)) {
1048                 st->st_mode = SMBC_DIR_MODE;
1049         } else {
1050                 st->st_mode = SMBC_FILE_MODE;
1051         }
1052
1053         if (IS_DOS_ARCHIVE(mode)) st->st_mode |= S_IXUSR;
1054         if (IS_DOS_SYSTEM(mode)) st->st_mode |= S_IXGRP;
1055         if (IS_DOS_HIDDEN(mode)) st->st_mode |= S_IXOTH;
1056         if (!IS_DOS_READONLY(mode)) st->st_mode |= S_IWUSR;
1057
1058         st->st_size = size;
1059         st->st_blksize = 512;
1060         st->st_blocks = (size+511)/512;
1061         st->st_uid = getuid();
1062         st->st_gid = getgid();
1063
1064         if (IS_DOS_DIR(mode)) {
1065                 st->st_nlink = 2;
1066         } else {
1067                 st->st_nlink = 1;
1068         }
1069
1070         if (st->st_ino == 0) {
1071                 st->st_ino = smbc_inode(context, fname);
1072         }
1073
1074         return True;  /* FIXME: Is this needed ? */
1075
1076 }
1077
1078 /*
1079  * Routine to stat a file given a name
1080  */
1081
1082 static int smbc_stat_ctx(SMBCCTX *context, const char *fname, struct stat *st)
1083 {
1084         SMBCSRV *srv;
1085         fstring server, share, user, password, workgroup;
1086         pstring path;
1087         time_t m_time = 0, a_time = 0, c_time = 0;
1088         size_t size = 0;
1089         uint16 mode = 0;
1090         SMB_INO_T ino = 0;
1091
1092         if (!context || !context->_initialized) {
1093
1094                 errno = EINVAL;  /* Best I can think of ... */
1095                 return -1;
1096
1097         }
1098
1099         if (!fname) {
1100
1101                 errno = EINVAL;
1102                 return -1;
1103
1104         }
1105
1106         DEBUG(4, ("smbc_stat(%s)\n", fname));
1107
1108         smbc_parse_path(context, fname, server, share, path, user, password); /*FIXME, errors*/
1109
1110         if (user[0] == (char)0) pstrcpy(user, context->user);
1111
1112         pstrcpy(workgroup, context->workgroup);
1113
1114         srv = smbc_server(context, server, share, workgroup, user, password);
1115
1116         if (!srv) {
1117
1118                 return -1;  /* errno set by smbc_server */
1119
1120         }
1121
1122         /* if (strncmp(srv->cli.dev, "IPC", 3) == 0) {
1123
1124            mode = aDIR | aRONLY;
1125
1126            }
1127            else if (strncmp(srv->cli.dev, "LPT", 3) == 0) {
1128
1129            if (strcmp(path, "\\") == 0) {
1130
1131            mode = aDIR | aRONLY;
1132
1133            }
1134            else {
1135
1136            mode = aRONLY;
1137            smbc_stat_printjob(srv, path, &size, &m_time);
1138            c_time = a_time = m_time;
1139
1140            }
1141            else { */
1142
1143         if (!smbc_getatr(context, srv, path, &mode, &size,
1144                          &c_time, &a_time, &m_time, &ino)) {
1145
1146                 errno = smbc_errno(context, &srv->cli);
1147                 return -1;
1148
1149         }
1150
1151         st->st_ino = ino;
1152
1153         smbc_setup_stat(context, st, path, size, mode);
1154
1155         st->st_atime = a_time;
1156         st->st_ctime = c_time;
1157         st->st_mtime = m_time;
1158         st->st_dev   = srv->dev;
1159
1160         return 0;
1161
1162 }
1163
1164 /*
1165  * Routine to stat a file given an fd
1166  */
1167
1168 static int smbc_fstat_ctx(SMBCCTX *context, SMBCFILE *file, struct stat *st)
1169 {
1170         time_t c_time, a_time, m_time;
1171         size_t size;
1172         uint16 mode;
1173         SMB_INO_T ino = 0;
1174
1175         if (!context || !context->_initialized) {
1176
1177                 errno = EINVAL;
1178                 return -1;
1179
1180         }
1181
1182         if (!file || !DLIST_CONTAINS(context->_files, file)) {
1183
1184                 errno = EBADF;
1185                 return -1;
1186
1187         }
1188
1189         if (!file->file) {
1190
1191                 return context->fstatdir(context, file, st);
1192
1193         }
1194
1195         if (!cli_qfileinfo(&file->srv->cli, file->cli_fd,
1196                            &mode, &size, &c_time, &a_time, &m_time, NULL, &ino) &&
1197             !cli_getattrE(&file->srv->cli, file->cli_fd,
1198                           &mode, &size, &c_time, &a_time, &m_time)) {
1199
1200                 errno = EINVAL;
1201                 return -1;
1202
1203         }
1204
1205         st->st_ino = ino;
1206
1207         smbc_setup_stat(context, st, file->fname, size, mode);
1208
1209         st->st_atime = a_time;
1210         st->st_ctime = c_time;
1211         st->st_mtime = m_time;
1212         st->st_dev = file->srv->dev;
1213
1214         return 0;
1215
1216 }
1217
1218 /*
1219  * Routine to open a directory
1220  *
1221  * We want to allow:
1222  *
1223  * smb: which should list all the workgroups available
1224  * smb:workgroup
1225  * smb:workgroup//server
1226  * smb://server
1227  * smb://server/share
1228  * smb://<IP-addr> which should list shares on server
1229  * smb://<IP-addr>/share which should list files on share
1230  */
1231
1232 static void smbc_remove_dir(SMBCFILE *dir)
1233 {
1234         struct smbc_dir_list *d,*f;
1235
1236         d = dir->dir_list;
1237         while (d) {
1238
1239                 f = d; d = d->next;
1240
1241                 SAFE_FREE(f->dirent);
1242                 SAFE_FREE(f);
1243
1244         }
1245
1246         dir->dir_list = dir->dir_end = dir->dir_next = NULL;
1247
1248 }
1249
1250 static int add_dirent(SMBCFILE *dir, const char *name, const char *comment, uint32 type)
1251 {
1252         struct smbc_dirent *dirent;
1253         int size;
1254
1255         /*
1256          * Allocate space for the dirent, which must be increased by the
1257          * size of the name and the comment and 1 for the null on the comment.
1258          * The null on the name is already accounted for.
1259          */
1260
1261         size = sizeof(struct smbc_dirent) + (name?strlen(name):0) +
1262                 (comment?strlen(comment):0) + 1;
1263
1264         dirent = malloc(size);
1265
1266         if (!dirent) {
1267
1268                 dir->dir_error = ENOMEM;
1269                 return -1;
1270
1271         }
1272
1273         ZERO_STRUCTP(dirent);
1274
1275         ZERO_STRUCTP(dirent);
1276
1277
1278         if (dir->dir_list == NULL) {
1279
1280                 dir->dir_list = malloc(sizeof(struct smbc_dir_list));
1281                 if (!dir->dir_list) {
1282
1283                         SAFE_FREE(dirent);
1284                         dir->dir_error = ENOMEM;
1285                         return -1;
1286
1287                 }
1288                 ZERO_STRUCTP(dir->dir_list);
1289
1290                 dir->dir_end = dir->dir_next = dir->dir_list;
1291
1292         }
1293         else {
1294
1295                 dir->dir_end->next = malloc(sizeof(struct smbc_dir_list));
1296
1297                 if (!dir->dir_end->next) {
1298
1299                         SAFE_FREE(dirent);
1300                         dir->dir_error = ENOMEM;
1301                         return -1;
1302
1303                 }
1304                 ZERO_STRUCTP(dir->dir_end->next);
1305
1306                 dir->dir_end = dir->dir_end->next;
1307
1308         }
1309
1310         dir->dir_end->next = NULL;
1311         dir->dir_end->dirent = dirent;
1312
1313         dirent->smbc_type = type;
1314         dirent->namelen = (name?strlen(name):0);
1315         dirent->commentlen = (comment?strlen(comment):0);
1316         dirent->dirlen = size;
1317
1318         strncpy(dirent->name, (name?name:""), dirent->namelen + 1);
1319
1320         dirent->comment = (char *)(&dirent->name + dirent->namelen + 1);
1321         strncpy(dirent->comment, (comment?comment:""), dirent->commentlen + 1);
1322
1323         return 0;
1324
1325 }
1326
1327 static void
1328 list_fn(const char *name, uint32 type, const char *comment, void *state)
1329 {
1330         SMBCFILE *dir = (SMBCFILE *)state;
1331         int dirent_type;
1332
1333         /* We need to process the type a little ... */
1334
1335         if (dir->dir_type == SMBC_FILE_SHARE) {
1336
1337                 switch (type) {
1338                 case 0: /* Directory tree */
1339                         dirent_type = SMBC_FILE_SHARE;
1340                         break;
1341
1342                 case 1:
1343                         dirent_type = SMBC_PRINTER_SHARE;
1344                         break;
1345
1346                 case 2:
1347                         dirent_type = SMBC_COMMS_SHARE;
1348                         break;
1349
1350                 case 3:
1351                         dirent_type = SMBC_IPC_SHARE;
1352                         break;
1353
1354                 default:
1355                         dirent_type = SMBC_FILE_SHARE; /* FIXME, error? */
1356                         break;
1357                 }
1358                 ZERO_STRUCTP(dir->dir_list);
1359
1360         }
1361         else dirent_type = dir->dir_type;
1362
1363         if (add_dirent(dir, name, comment, dirent_type) < 0) {
1364
1365                 /* An error occurred, what do we do? */
1366                 /* FIXME: Add some code here */
1367
1368         }
1369
1370 }
1371
1372 static void
1373 dir_list_fn(file_info *finfo, const char *mask, void *state)
1374 {
1375
1376         if (add_dirent((SMBCFILE *)state, finfo->name, "",
1377                        (finfo->mode&aDIR?SMBC_DIR:SMBC_FILE)) < 0) {
1378
1379                 /* Handle an error ... */
1380
1381                 /* FIXME: Add some code ... */
1382
1383         }
1384
1385 }
1386
1387 static SMBCFILE *smbc_opendir_ctx(SMBCCTX *context, const char *fname)
1388 {
1389         fstring server, share, user, password, workgroup;
1390         pstring path;
1391         SMBCSRV *srv  = NULL;
1392         SMBCFILE *dir = NULL;
1393         struct in_addr rem_ip;
1394         int slot = 0;
1395
1396         if (!context || !context->_initialized) {
1397
1398                 errno = EINVAL;
1399                 return NULL;
1400
1401         }
1402
1403         if (!fname) {
1404
1405                 errno = EINVAL;
1406                 return NULL;
1407
1408         }
1409
1410         if (smbc_parse_path(context, fname, server, share, path, user, password)) {
1411
1412                 errno = EINVAL;
1413                 return NULL;
1414
1415         }
1416
1417         if (user[0] == (char)0) pstrcpy(user, context->user);
1418
1419         pstrcpy(workgroup, context->workgroup);
1420
1421         dir = malloc(sizeof(*dir));
1422
1423         if (!dir) {
1424
1425                 errno = ENOMEM;
1426                 return NULL;
1427
1428         }
1429
1430         ZERO_STRUCTP(dir);
1431
1432         dir->cli_fd   = 0;
1433         dir->fname    = strdup(fname);
1434         dir->srv      = NULL;
1435         dir->offset   = 0;
1436         dir->file     = False;
1437         dir->dir_list = dir->dir_next = dir->dir_end = NULL;
1438
1439         if (server[0] == (char)0) {
1440
1441                 if (share[0] != (char)0 || path[0] != (char)0) {
1442
1443                         errno = EINVAL;
1444                         if (dir) {
1445                                 SAFE_FREE(dir->fname);
1446                                 SAFE_FREE(dir);
1447                         }
1448                         return NULL;
1449
1450                 }
1451
1452                 /* We have server and share and path empty ... so list the workgroups */
1453                 /* first try to get the LMB for our workgroup, and if that fails,     */
1454                 /* try the DMB                                                        */
1455
1456                 if (!(resolve_name(context->workgroup, &rem_ip, 0x1d) ||
1457                       resolve_name(context->workgroup, &rem_ip, 0x1b))) {
1458
1459                         errno = EINVAL;  /* Something wrong with smb.conf? */
1460                         return NULL;
1461
1462                 }
1463
1464                 dir->dir_type = SMBC_WORKGROUP;
1465
1466                 /* find the name of the server ... */
1467
1468                 if (!name_status_find("*", 0, 0, rem_ip, server)) {
1469
1470                         DEBUG(0,("Could not get the name of local/domain master browser for server %s\n", server));
1471                         errno = EINVAL;
1472                         return NULL;
1473
1474                 }
1475
1476                 /*
1477                  * Get a connection to IPC$ on the server if we do not already have one
1478                  */
1479
1480                 srv = smbc_server(context, server, "IPC$", workgroup, user, password);
1481
1482                 if (!srv) {
1483
1484                         if (dir) {
1485                                 SAFE_FREE(dir->fname);
1486                                 SAFE_FREE(dir);
1487                         }
1488
1489                         return NULL;
1490
1491                 }
1492                 ZERO_STRUCTP(dir->dir_end);
1493
1494                 dir->srv = srv;
1495
1496                 /* Now, list the stuff ... */
1497
1498                 if (!cli_NetServerEnum(&srv->cli, workgroup, 0x80000000, list_fn,
1499                                        (void *)dir)) {
1500
1501                         if (dir) {
1502                                 SAFE_FREE(dir->fname);
1503                                 SAFE_FREE(dir);
1504                         }
1505                         errno = cli_errno(&srv->cli);
1506
1507                         return NULL;
1508
1509                 }
1510         }
1511         else { /* Server not an empty string ... Check the rest and see what gives */
1512
1513                 if (share[0] == (char)0) {
1514
1515                         if (path[0] != (char)0) { /* Should not have empty share with path */
1516
1517                                 errno = EINVAL;
1518                                 if (dir) {
1519                                         SAFE_FREE(dir->fname);
1520                                         SAFE_FREE(dir);
1521                                 }
1522                                 return NULL;
1523
1524                         }
1525
1526                         /* Check to see if <server><1D>, <server><1B>, or <server><20> translates */
1527                         /* However, we check to see if <server> is an IP address first */
1528
1529                         if (!is_ipaddress(server) &&  /* Not an IP addr so check next */
1530                             (resolve_name(server, &rem_ip, 0x1d) ||   /* Found LMB */
1531                                     resolve_name(server, &rem_ip, 0x1b) )) { /* Found DMB */
1532                                 pstring buserver;
1533
1534                                 dir->dir_type = SMBC_SERVER;
1535
1536                                 /*
1537                                  * Get the backup list ...
1538                                  */
1539
1540
1541                                 if (!name_status_find("*", 0, 0, rem_ip, buserver)) {
1542
1543                                         DEBUG(0, ("Could not get name of local/domain master browser for server %s\n", server));
1544                                         errno = EPERM;  /* FIXME, is this correct */
1545                                         return NULL;
1546
1547                                 }
1548
1549                                 /*
1550                                  * Get a connection to IPC$ on the server if we do not already have one
1551                                  */
1552
1553                                 srv = smbc_server(context, buserver, "IPC$", workgroup, user, password);
1554
1555                                 if (!srv) {
1556
1557                                         if (dir) {
1558                                                 SAFE_FREE(dir->fname);
1559                                                 SAFE_FREE(dir);
1560                                         }
1561                                         return NULL;
1562
1563                                 }
1564
1565                                 dir->srv = srv;
1566
1567                                 /* Now, list the servers ... */
1568
1569                                 if (!cli_NetServerEnum(&srv->cli, server, 0x0000FFFE, list_fn,
1570                                                        (void *)dir)) {
1571
1572                                         if (dir) {
1573                                                 SAFE_FREE(dir->fname);
1574                                                 SAFE_FREE(dir);
1575                                         }
1576                                         errno = cli_errno(&srv->cli);
1577                                         return NULL;
1578
1579                                 }
1580
1581                         }
1582                         else {
1583
1584                                 if (resolve_name(server, &rem_ip, 0x20)) {
1585
1586                                         /* Now, list the shares ... */
1587
1588                                         dir->dir_type = SMBC_FILE_SHARE;
1589
1590                                         srv = smbc_server(context, server, "IPC$", workgroup, user, password);
1591
1592                                         if (!srv) {
1593
1594                                                 if (dir) {
1595                                                         SAFE_FREE(dir->fname);
1596                                                         SAFE_FREE(dir);
1597                                                 }
1598                                                 return NULL;
1599
1600                                         }
1601
1602                                         dir->srv = srv;
1603
1604                                         /* Now, list the servers ... */
1605
1606                                         if (cli_RNetShareEnum(&srv->cli, list_fn,
1607                                                               (void *)dir) < 0) {
1608
1609                                                 errno = cli_errno(&srv->cli);
1610                                                 if (dir) {
1611                                                         SAFE_FREE(dir->fname);
1612                                                         SAFE_FREE(dir);
1613                                                 }
1614                                                 return NULL;
1615
1616                                         }
1617
1618                                 }
1619                                 else {
1620
1621                                         errno = ENODEV;   /* Neither the workgroup nor server exists */
1622                                         if (dir) {
1623                                                 SAFE_FREE(dir->fname);
1624                                                 SAFE_FREE(dir);
1625                                         }
1626                                         return NULL;
1627
1628                                 }
1629
1630                         }
1631
1632                 }
1633                 else { /* The server and share are specified ... work from there ... */
1634
1635                         /* Well, we connect to the server and list the directory */
1636
1637                         dir->dir_type = SMBC_FILE_SHARE;
1638
1639                         srv = smbc_server(context, server, share, workgroup, user, password);
1640
1641                         if (!srv) {
1642
1643                                 if (dir) {
1644                                         SAFE_FREE(dir->fname);
1645                                         SAFE_FREE(dir);
1646                                 }
1647                                 return NULL;
1648
1649                         }
1650
1651                         dir->srv = srv;
1652
1653                         /* Now, list the files ... */
1654
1655                         pstrcat(path, "\\*");
1656
1657                         if (cli_list(&srv->cli, path, aDIR | aSYSTEM | aHIDDEN, dir_list_fn,
1658                                      (void *)dir) < 0) {
1659
1660                                 if (dir) {
1661                                         SAFE_FREE(dir->fname);
1662                                         SAFE_FREE(dir);
1663                                 }
1664                                 errno = smbc_errno(context, &srv->cli);
1665                                 return NULL;
1666
1667                         }
1668                 }
1669
1670         }
1671
1672         DLIST_ADD(context->_files, dir);
1673         return dir;
1674
1675 }
1676
1677 /*
1678  * Routine to close a directory
1679  */
1680
1681 static int smbc_closedir_ctx(SMBCCTX *context, SMBCFILE *dir)
1682 {
1683
1684         if (!context || !context->_initialized) {
1685
1686                 errno = EINVAL;
1687                 return -1;
1688
1689         }
1690
1691         if (!dir || !DLIST_CONTAINS(context->_files, dir)) {
1692
1693                 errno = EBADF;
1694                 return -1;
1695
1696         }
1697
1698         smbc_remove_dir(dir); /* Clean it up */
1699
1700         DLIST_REMOVE(context->_files, dir);
1701
1702         if (dir) {
1703
1704                 SAFE_FREE(dir->fname);
1705                 SAFE_FREE(dir);    /* Free the space too */
1706
1707         }
1708
1709         return 0;
1710
1711 }
1712
1713 /*
1714  * Routine to get a directory entry
1715  */
1716
1717 struct smbc_dirent *smbc_readdir_ctx(SMBCCTX *context, SMBCFILE *dir)
1718 {
1719         struct smbc_dirent *dirp, *dirent;
1720
1721         /* Check that all is ok first ... */
1722
1723         if (!context || !context->_initialized) {
1724
1725                 errno = EINVAL;
1726                 return NULL;
1727
1728         }
1729
1730         if (!dir || !DLIST_CONTAINS(context->_files, dir)) {
1731
1732                 errno = EBADF;
1733                 return NULL;
1734
1735         }
1736
1737         if (dir->file != False) { /* FIXME, should be dir, perhaps */
1738
1739                 errno = ENOTDIR;
1740                 return NULL;
1741
1742         }
1743
1744         if (!dir->dir_next)
1745                 return NULL;
1746         else {
1747
1748                 dirent = dir->dir_next->dirent;
1749
1750                 if (!dirent) {
1751
1752                         errno = ENOENT;
1753                         return NULL;
1754
1755                 }
1756
1757                 /* Hmmm, do I even need to copy it? */
1758
1759                 memcpy(context->_dirent, dirent, dirent->dirlen); /* Copy the dirent */
1760                 dirp = (struct smbc_dirent *)context->_dirent;
1761                 dirp->comment = (char *)(&dirp->name + dirent->namelen + 1);
1762                 dir->dir_next = dir->dir_next->next;
1763
1764                 return (struct smbc_dirent *)context->_dirent;
1765         }
1766
1767 }
1768
1769 /*
1770  * Routine to get directory entries
1771  */
1772
1773 static int smbc_getdents_ctx(SMBCCTX *context, SMBCFILE *dir, struct smbc_dirent *dirp, int count)
1774 {
1775         struct smbc_dir_list *dirlist;
1776         int rem = count, reqd;
1777         char *ndir = (char *)dirp;
1778
1779         /* Check that all is ok first ... */
1780
1781         if (!context || !context->_initialized) {
1782
1783                 errno = EINVAL;
1784                 return -1;
1785
1786         }
1787
1788         if (!dir || !DLIST_CONTAINS(context->_files, dir)) {
1789
1790                 errno = EBADF;
1791                 return -1;
1792
1793         }
1794
1795         if (dir->file != False) { /* FIXME, should be dir, perhaps */
1796
1797                 errno = ENOTDIR;
1798                 return -1;
1799
1800         }
1801
1802         /*
1803          * Now, retrieve the number of entries that will fit in what was passed
1804          * We have to figure out if the info is in the list, or we need to
1805          * send a request to the server to get the info.
1806          */
1807
1808         while ((dirlist = dir->dir_next)) {
1809                 struct smbc_dirent *dirent;
1810
1811                 if (!dirlist->dirent) {
1812
1813                         errno = ENOENT;  /* Bad error */
1814                         return -1;
1815
1816                 }
1817
1818                 if (rem < (reqd = (sizeof(struct smbc_dirent) + dirlist->dirent->namelen +
1819                                    dirlist->dirent->commentlen + 1))) {
1820
1821                         if (rem < count) { /* We managed to copy something */
1822
1823                                 errno = 0;
1824                                 return count - rem;
1825
1826                         }
1827                         else { /* Nothing copied ... */
1828
1829                                 errno = EINVAL;  /* Not enough space ... */
1830                                 return -1;
1831
1832                         }
1833
1834                 }
1835
1836                 dirent = dirlist->dirent;
1837
1838                 memcpy(ndir, dirent, reqd); /* Copy the data in ... */
1839
1840                 ((struct smbc_dirent *)ndir)->comment =
1841                         (char *)(&((struct smbc_dirent *)ndir)->name + dirent->namelen + 1);
1842
1843                 ndir += reqd;
1844
1845                 rem -= reqd;
1846
1847                 dir->dir_next = dirlist = dirlist -> next;
1848         }
1849
1850         if (rem == count)
1851                 return 0;
1852         else
1853                 return count - rem;
1854
1855 }
1856
1857 /*
1858  * Routine to create a directory ...
1859  */
1860
1861 static int smbc_mkdir_ctx(SMBCCTX *context, const char *fname, mode_t mode)
1862 {
1863         SMBCSRV *srv;
1864         fstring server, share, user, password, workgroup;
1865         pstring path;
1866
1867         if (!context || !context->_initialized) {
1868
1869                 errno = EINVAL;
1870                 return -1;
1871
1872         }
1873
1874         if (!fname) {
1875
1876                 errno = EINVAL;
1877                 return -1;
1878
1879         }
1880
1881         DEBUG(4, ("smbc_mkdir(%s)\n", fname));
1882
1883         smbc_parse_path(context, fname, server, share, path, user, password); /*FIXME, errors*/
1884
1885         if (user[0] == (char)0) pstrcpy(user, context->user);
1886
1887         pstrcpy(workgroup, context->workgroup);
1888
1889         srv = smbc_server(context, server, share, workgroup, user, password);
1890
1891         if (!srv) {
1892
1893                 return -1;  /* errno set by smbc_server */
1894
1895         }
1896
1897         /* if (strncmp(srv->cli.dev, "IPC", 3) == 0) {
1898
1899            mode = aDIR | aRONLY;
1900
1901            }
1902            else if (strncmp(srv->cli.dev, "LPT", 3) == 0) {
1903
1904            if (strcmp(path, "\\") == 0) {
1905
1906            mode = aDIR | aRONLY;
1907
1908            }
1909            else {
1910
1911            mode = aRONLY;
1912            smbc_stat_printjob(srv, path, &size, &m_time);
1913            c_time = a_time = m_time;
1914
1915            }
1916            else { */
1917
1918         if (!cli_mkdir(&srv->cli, path)) {
1919
1920                 errno = smbc_errno(context, &srv->cli);
1921                 return -1;
1922
1923         }
1924
1925         return 0;
1926
1927 }
1928
1929 /*
1930  * Our list function simply checks to see if a directory is not empty
1931  */
1932
1933 static int smbc_rmdir_dirempty = True;
1934
1935 static void rmdir_list_fn(file_info *finfo, const char *mask, void *state)
1936 {
1937
1938         if (strncmp(finfo->name, ".", 1) != 0 && strncmp(finfo->name, "..", 2) != 0)
1939                 smbc_rmdir_dirempty = False;
1940
1941 }
1942
1943 /*
1944  * Routine to remove a directory
1945  */
1946
1947 static int smbc_rmdir_ctx(SMBCCTX *context, const char *fname)
1948 {
1949         SMBCSRV *srv;
1950         fstring server, share, user, password, workgroup;
1951         pstring path;
1952
1953         if (!context || !context->_initialized) {
1954
1955                 errno = EINVAL;
1956                 return -1;
1957
1958         }
1959
1960         if (!fname) {
1961
1962                 errno = EINVAL;
1963                 return -1;
1964
1965         }
1966
1967         DEBUG(4, ("smbc_rmdir(%s)\n", fname));
1968
1969         smbc_parse_path(context, fname, server, share, path, user, password); /*FIXME, errors*/
1970
1971         if (user[0] == (char)0) pstrcpy(user, context->user);
1972
1973         pstrcpy(workgroup, context->workgroup);
1974
1975         srv = smbc_server(context, server, share, workgroup, user, password);
1976
1977         if (!srv) {
1978
1979                 return -1;  /* errno set by smbc_server */
1980
1981         }
1982
1983         /* if (strncmp(srv->cli.dev, "IPC", 3) == 0) {
1984
1985            mode = aDIR | aRONLY;
1986
1987            }
1988            else if (strncmp(srv->cli.dev, "LPT", 3) == 0) {
1989
1990            if (strcmp(path, "\\") == 0) {
1991
1992            mode = aDIR | aRONLY;
1993
1994            }
1995            else {
1996
1997            mode = aRONLY;
1998            smbc_stat_printjob(srv, path, &size, &m_time);
1999            c_time = a_time = m_time;
2000
2001            }
2002            else { */
2003
2004         if (!cli_rmdir(&srv->cli, path)) {
2005
2006                 errno = smbc_errno(context, &srv->cli);
2007
2008                 if (errno == EACCES) {  /* Check if the dir empty or not */
2009
2010                         pstring lpath; /* Local storage to avoid buffer overflows */
2011
2012                         smbc_rmdir_dirempty = True;  /* Make this so ... */
2013
2014                         pstrcpy(lpath, path);
2015                         pstrcat(lpath, "\\*");
2016
2017                         if (cli_list(&srv->cli, lpath, aDIR | aSYSTEM | aHIDDEN, rmdir_list_fn,
2018                                      NULL) < 0) {
2019
2020                                 /* Fix errno to ignore latest error ... */
2021
2022                                 DEBUG(5, ("smbc_rmdir: cli_list returned an error: %d\n",
2023                                           smbc_errno(context, &srv->cli)));
2024                                 errno = EACCES;
2025
2026                         }
2027
2028                         if (smbc_rmdir_dirempty)
2029                                 errno = EACCES;
2030                         else
2031                                 errno = ENOTEMPTY;
2032
2033                 }
2034
2035                 return -1;
2036
2037         }
2038
2039         return 0;
2040
2041 }
2042
2043 /*
2044  * Routine to return the current directory position
2045  */
2046
2047 static off_t smbc_telldir_ctx(SMBCCTX *context, SMBCFILE *dir)
2048 {
2049
2050         if (!context || !context->_initialized) {
2051
2052                 errno = EINVAL;
2053                 return -1;
2054
2055         }
2056
2057         if (!dir || !DLIST_CONTAINS(context->_files, dir)) {
2058
2059                 errno = EBADF;
2060                 return -1;
2061
2062         }
2063
2064         if (dir->file != False) { /* FIXME, should be dir, perhaps */
2065
2066                 errno = ENOTDIR;
2067                 return -1;
2068
2069         }
2070
2071         return (off_t) dir->dir_next;
2072
2073 }
2074
2075 /*
2076  * A routine to run down the list and see if the entry is OK
2077  */
2078
2079 struct smbc_dir_list *smbc_check_dir_ent(struct smbc_dir_list *list,
2080                                          struct smbc_dirent *dirent)
2081 {
2082
2083         /* Run down the list looking for what we want */
2084
2085         if (dirent) {
2086
2087                 struct smbc_dir_list *tmp = list;
2088
2089                 while (tmp) {
2090
2091                         if (tmp->dirent == dirent)
2092                                 return tmp;
2093
2094                         tmp = tmp->next;
2095
2096                 }
2097
2098         }
2099
2100         return NULL;  /* Not found, or an error */
2101
2102 }
2103
2104
2105 /*
2106  * Routine to seek on a directory
2107  */
2108
2109 static int smbc_lseekdir_ctx(SMBCCTX *context, SMBCFILE *dir, off_t offset)
2110 {
2111         struct smbc_dirent *dirent = (struct smbc_dirent *)offset;
2112         struct smbc_dir_list *list_ent = NULL;
2113
2114         if (!context || !context->_initialized) {
2115
2116                 errno = EINVAL;
2117                 return -1;
2118
2119         }
2120
2121         if (dir->file != False) { /* FIXME, should be dir, perhaps */
2122
2123                 errno = ENOTDIR;
2124                 return -1;
2125
2126         }
2127
2128         /* Now, check what we were passed and see if it is OK ... */
2129
2130         if (dirent == NULL) {  /* Seek to the begining of the list */
2131
2132                 dir->dir_next = dir->dir_list;
2133                 return 0;
2134
2135         }
2136
2137         /* Now, run down the list and make sure that the entry is OK       */
2138         /* This may need to be changed if we change the format of the list */
2139
2140         if ((list_ent = smbc_check_dir_ent(dir->dir_list, dirent)) == NULL) {
2141
2142                 errno = EINVAL;   /* Bad entry */
2143                 return -1;
2144
2145         }
2146
2147         dir->dir_next = list_ent;
2148
2149         return 0;
2150
2151 }
2152
2153 /*
2154  * Routine to fstat a dir
2155  */
2156
2157 static int smbc_fstatdir_ctx(SMBCCTX *context, SMBCFILE *dir, struct stat *st)
2158 {
2159
2160         if (context || !context->_initialized) {
2161
2162                 errno = EINVAL;
2163                 return -1;
2164
2165         }
2166
2167         /* No code yet ... */
2168
2169         return 0;
2170
2171 }
2172
2173 /*
2174  * Open a print file to be written to by other calls
2175  */
2176
2177 static SMBCFILE *smbc_open_print_job_ctx(SMBCCTX *context, const char *fname)
2178 {
2179         fstring server, share, user, password;
2180         pstring path;
2181
2182         if (!context || context->_initialized) {
2183
2184                 errno = EINVAL;
2185                 return NULL;
2186
2187         }
2188
2189         if (!fname) {
2190
2191                 errno = EINVAL;
2192                 return NULL;
2193
2194         }
2195
2196         DEBUG(4, ("smbc_open_print_job_ctx(%s)\n", fname));
2197
2198         smbc_parse_path(context, fname, server, share, path, user, password); /*FIXME, errors*/
2199
2200         /* What if the path is empty, or the file exists? */
2201
2202         return context->open(context, fname, O_WRONLY, 666);
2203
2204 }
2205
2206 /*
2207  * Routine to print a file on a remote server ...
2208  *
2209  * We open the file, which we assume to be on a remote server, and then
2210  * copy it to a print file on the share specified by printq.
2211  */
2212
2213 static int smbc_print_file_ctx(SMBCCTX *c_file, const char *fname, SMBCCTX *c_print, const char *printq)
2214 {
2215         SMBCFILE *fid1, *fid2;
2216         int bytes, saverr, tot_bytes = 0;
2217         char buf[4096];
2218
2219         if (!c_file || !c_file->_initialized || !c_print ||
2220             !c_print->_initialized) {
2221
2222                 errno = EINVAL;
2223                 return -1;
2224
2225         }
2226
2227         if (!fname && !printq) {
2228
2229                 errno = EINVAL;
2230                 return -1;
2231
2232         }
2233
2234         /* Try to open the file for reading ... */
2235
2236         if ((fid1 = c_file->open(c_file, fname, O_RDONLY, 0666)) < 0) {
2237
2238                 DEBUG(3, ("Error, fname=%s, errno=%i\n", fname, errno));
2239                 return -1;  /* smbc_open sets errno */
2240
2241         }
2242
2243         /* Now, try to open the printer file for writing */
2244
2245         if ((fid2 = c_print->open_print_job(c_print, printq)) < 0) {
2246
2247                 saverr = errno;  /* Save errno */
2248                 c_file->close(c_file, fid1);
2249                 errno = saverr;
2250                 return -1;
2251
2252         }
2253
2254         while ((bytes = c_file->read(c_file, fid1, buf, sizeof(buf))) > 0) {
2255
2256                 tot_bytes += bytes;
2257
2258                 if ((c_print->write(c_print, fid2, buf, bytes)) < 0) {
2259
2260                         saverr = errno;
2261                         c_file->close(c_file, fid1);
2262                         c_print->close(c_print, fid2);
2263                         errno = saverr;
2264
2265                 }
2266
2267         }
2268
2269         saverr = errno;
2270
2271         c_file->close(c_file, fid1);  /* We have to close these anyway */
2272         c_print->close(c_print, fid2);
2273
2274         if (bytes < 0) {
2275
2276                 errno = saverr;
2277                 return -1;
2278
2279         }
2280
2281         return tot_bytes;
2282
2283 }
2284
2285 /*
2286  * Routine to list print jobs on a printer share ...
2287  */
2288
2289 static int smbc_list_print_jobs_ctx(SMBCCTX *context, const char *fname, void (*fn)(struct print_job_info *))
2290 {
2291         SMBCSRV *srv;
2292         fstring server, share, user, password, workgroup;
2293         pstring path;
2294
2295         if (!context || !context->_initialized) {
2296
2297                 errno = EINVAL;
2298                 return -1;
2299
2300         }
2301
2302         if (!fname) {
2303
2304                 errno = EINVAL;
2305                 return -1;
2306
2307         }
2308
2309         DEBUG(4, ("smbc_list_print_jobs(%s)\n", fname));
2310
2311         smbc_parse_path(context, fname, server, share, path, user, password); /*FIXME, errors*/
2312
2313         if (user[0] == (char)0) pstrcpy(user, context->user);
2314
2315         pstrcpy(workgroup, context->workgroup);
2316
2317         srv = smbc_server(context, server, share, workgroup, user, password);
2318
2319         if (!srv) {
2320
2321                 return -1;  /* errno set by smbc_server */
2322
2323         }
2324
2325         if (cli_print_queue(&srv->cli, fn) < 0) {
2326
2327                 errno = smbc_errno(context, &srv->cli);
2328                 return -1;
2329
2330         }
2331
2332         return 0;
2333
2334 }
2335
2336 /*
2337  * Delete a print job from a remote printer share
2338  */
2339
2340 static int smbc_unlink_print_job_ctx(SMBCCTX *context, const char *fname, int id)
2341 {
2342         SMBCSRV *srv;
2343         fstring server, share, user, password, workgroup;
2344         pstring path;
2345         int err;
2346
2347         if (!context || !context->_initialized) {
2348
2349                 errno = EINVAL;
2350                 return -1;
2351
2352         }
2353
2354         if (!fname) {
2355
2356                 errno = EINVAL;
2357                 return -1;
2358
2359         }
2360
2361         DEBUG(4, ("smbc_unlink_print_job(%s)\n", fname));
2362
2363         smbc_parse_path(context, fname, server, share, path, user, password); /*FIXME, errors*/
2364
2365         if (user[0] == (char)0) pstrcpy(user, context->user);
2366
2367         pstrcpy(workgroup, context->workgroup);
2368
2369         srv = smbc_server(context, server, share, workgroup, user, password);
2370
2371         if (!srv) {
2372
2373                 return -1;  /* errno set by smbc_server */
2374
2375         }
2376
2377         if ((err = cli_printjob_del(&srv->cli, id)) != 0) {
2378
2379                 if (err < 0)
2380                         errno = smbc_errno(context, &srv->cli);
2381                 else if (err == ERRnosuchprintjob)
2382                         errno = EINVAL;
2383                 return -1;
2384
2385         }
2386
2387         return 0;
2388
2389 }
2390
2391 /*
2392  * Get a new empty handle to fill in with your own info
2393  */
2394 SMBCCTX * smbc_new_context(void)
2395 {
2396         SMBCCTX * context;
2397
2398         context = malloc(sizeof(*context));
2399         if (!context) {
2400                 errno = ENOMEM;
2401                 return NULL;
2402         }
2403
2404         ZERO_STRUCTP(context);
2405
2406         /* ADD REASONABLE DEFAULTS */
2407         context->debug            = 0;
2408         context->timeout          = 20000; /* 20 seconds */
2409
2410         context->open             = smbc_open_ctx;
2411         context->creat            = smbc_creat_ctx;
2412         context->read             = smbc_read_ctx;
2413         context->write            = smbc_write_ctx;
2414         context->close            = smbc_close_ctx;
2415         context->unlink           = smbc_unlink_ctx;
2416         context->rename           = smbc_rename_ctx;
2417         context->lseek            = smbc_lseek_ctx;
2418         context->stat             = smbc_stat_ctx;
2419         context->fstat            = smbc_fstat_ctx;
2420         context->opendir          = smbc_opendir_ctx;
2421         context->closedir         = smbc_closedir_ctx;
2422         context->readdir          = smbc_readdir_ctx;
2423         context->getdents         = smbc_getdents_ctx;
2424         context->mkdir            = smbc_mkdir_ctx;
2425         context->rmdir            = smbc_rmdir_ctx;
2426         context->telldir          = smbc_telldir_ctx;
2427         context->lseekdir         = smbc_lseekdir_ctx;
2428         context->fstatdir         = smbc_fstatdir_ctx;
2429         context->open_print_job   = smbc_open_print_job_ctx;
2430         context->print_file       = smbc_print_file_ctx;
2431         context->list_print_jobs  = smbc_list_print_jobs_ctx;
2432         context->unlink_print_job = smbc_unlink_print_job_ctx;
2433
2434         context->callbacks.check_server_fn      = smbc_check_server;
2435         context->callbacks.remove_unused_server_fn = smbc_remove_unused_server;
2436
2437         smbc_default_cache_functions(context);
2438
2439         return context;
2440 }
2441
2442 /*
2443  * Free a context
2444  *
2445  * Returns 0 on success. Otherwise returns 1, the SMBCCTX is _not_ freed
2446  * and thus you'll be leaking memory if not handled properly.
2447  *
2448  */
2449 int smbc_free_context(SMBCCTX * context, int shutdown_ctx)
2450 {
2451         if (!context) {
2452                 errno = EBADF;
2453                 return 1;
2454         }
2455
2456         if (shutdown_ctx) {
2457                 SMBCFILE * f;
2458                 DEBUG(1,("Performing aggressive shutdown.\n"));
2459
2460                 f = context->_files;
2461                 while (f) {
2462                         context->close(context, f);
2463                         f = f->next;
2464                 }
2465                 context->_files = NULL;
2466
2467                 /* First try to remove the servers the nice way. */
2468                 if (context->callbacks.purge_cached_fn(context)) {
2469                         SMBCSRV * s;
2470                         DEBUG(1, ("Could not purge all servers, Nice way shutdown failed.\n"));
2471                         s = context->_servers;
2472                         while (s) {
2473                                 cli_shutdown(&s->cli);
2474                                 context->callbacks.remove_cached_srv_fn(context, s);
2475                                 SAFE_FREE(s);
2476                                 s = s->next;
2477                         }
2478                         context->_servers = NULL;
2479                 }
2480         }
2481         else {
2482                 /* This is the polite way */
2483                 if (context->callbacks.purge_cached_fn(context)) {
2484                         DEBUG(1, ("Could not purge all servers, free_context failed.\n"));
2485                         errno = EBUSY;
2486                         return 1;
2487                 }
2488                 if (context->_servers) {
2489                         DEBUG(1, ("Active servers in context, free_context failed.\n"));
2490                         errno = EBUSY;
2491                         return 1;
2492                 }
2493                 if (context->_files) {
2494                         DEBUG(1, ("Active files in context, free_context failed.\n"));
2495                         errno = EBUSY;
2496                         return 1;
2497                 }
2498         }
2499
2500         /* Things we have to clean up */
2501         SAFE_FREE(context->workgroup);
2502         SAFE_FREE(context->netbios_name);
2503         SAFE_FREE(context->user);
2504
2505         DEBUG(3, ("Context %p succesfully freed\n", context));
2506         SAFE_FREE(context);
2507         return 0;
2508 }
2509
2510
2511 /*
2512  * Initialise the library etc
2513  *
2514  * We accept a struct containing handle information.
2515  * valid values for info->debug from 0 to 100,
2516  * and insist that info->fn must be non-null.
2517  */
2518 SMBCCTX * smbc_init_context(SMBCCTX * context)
2519 {
2520         pstring conf;
2521         int pid;
2522         char *user = NULL, *home = NULL;
2523
2524         if (!context) {
2525                 errno = EBADF;
2526                 return NULL;
2527         }
2528
2529         /* Do not initialise the same client twice */
2530         if (context->_initialized) {
2531                 return 0;
2532         }
2533
2534         if (!context->callbacks.auth_fn || context->debug < 0 || context->debug > 100) {
2535
2536                 errno = EINVAL;
2537                 return NULL;
2538
2539         }
2540
2541         if (!smbc_initialized) {
2542                 /* Do some library wide intialisations the first time we get called */
2543
2544                 /* Do we still need this ? */
2545                 DEBUGLEVEL = 10;
2546
2547                 setup_logging( "libsmbclient", False);
2548
2549                 /* Here we would open the smb.conf file if needed ... */
2550
2551                 home = getenv("HOME");
2552
2553                 slprintf(conf, sizeof(conf), "%s/.smb/smb.conf", home);
2554
2555                 load_interfaces();  /* Load the list of interfaces ... */
2556
2557                 in_client = True; /* FIXME, make a param */
2558
2559                 if (!lp_load(conf, True, False, False)) {
2560
2561                         /*
2562                          * Hmmm, what the hell do we do here ... we could not parse the
2563                          * config file ... We must return an error ... and keep info around
2564                          * about why we failed
2565                          */
2566
2567                         errno = ENOENT; /* FIXME: Figure out the correct error response */
2568                         return NULL;
2569                 }
2570
2571                 reopen_logs();  /* Get logging working ... */
2572
2573                 /*
2574                  * Block SIGPIPE (from lib/util_sock.c: write())
2575                  * It is not needed and should not stop execution
2576                  */
2577                 BlockSignals(True, SIGPIPE);
2578
2579                 /* Done with one-time initialisation */
2580                 smbc_initialized = 1;
2581
2582         }
2583
2584         if (!context->user) {
2585                 /*
2586                  * FIXME: Is this the best way to get the user info?
2587                  */
2588                 user = getenv("USER");
2589                 /* walk around as "guest" if no username can be found */
2590                 if (!user) context->user = strdup("guest");
2591                 else context->user = strdup(user);
2592         }
2593
2594         if (!context->netbios_name) {
2595                 /*
2596                  * We try to get our netbios name from the config. If that fails we fall
2597                  * back on constructing our netbios name from our hostname etc
2598                  */
2599                 if (global_myname) {
2600                         context->netbios_name = strdup(global_myname);
2601                 }
2602                 else {
2603                         /*
2604                          * Hmmm, I want to get hostname as well, but I am too lazy for the moment
2605                          */
2606                         pid = sys_getpid();
2607                         context->netbios_name = malloc(17);
2608                         if (!context->netbios_name) {
2609                                 errno = ENOMEM;
2610                                 return NULL;
2611                         }
2612                         slprintf(context->netbios_name, 16, "smbc%s%d", context->user, pid);
2613                 }
2614         }
2615         DEBUG(0,("Using netbios name %s.\n", context->netbios_name));
2616
2617
2618         if (!context->workgroup) {
2619                 if (lp_workgroup()) {
2620                         context->workgroup = strdup(lp_workgroup());
2621                 }
2622                 else {
2623                         /* TODO: Think about a decent default workgroup */
2624                         context->workgroup = strdup("samba");
2625                 }
2626         }
2627         DEBUG(0,("Using workgroup %s.\n", context->workgroup));
2628
2629         /* shortest timeout is 1 second */
2630         if (context->timeout > 0 && context->timeout < 1000)
2631                 context->timeout = 1000;
2632
2633         /*
2634          * FIXME: Should we check the function pointers here?
2635          */
2636
2637         context->_initialized = 1;
2638
2639         return context;
2640 }