source3/utils/smbget.c

   1 /*
   2    smbget: a wget-like utility with support for recursive downloading of
   3         smb:// urls
   4    Copyright (C) 2003-2004 Jelmer Vernooij <jelmer@samba.org>
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #include "includes.h"
  20 #include "system/filesys.h"
  21 #include "popt_common_cmdline.h"
  22 #include "libsmbclient.h"
  23 #include "cmdline_contexts.h"
  24
  25 static int columns = 0;
  26
  27 static time_t total_start_time = 0;
  28 static off_t total_bytes = 0;
  29
  30 #define SMB_MAXPATHLEN MAXPATHLEN
  31
  32 /*
  33  * Number of bytes to read when checking whether local and remote file
  34  * are really the same file
  35  */
  36 #define RESUME_CHECK_SIZE       512
  37 #define RESUME_DOWNLOAD_OFFSET  1024
  38 #define RESUME_CHECK_OFFSET     (RESUME_DOWNLOAD_OFFSET+RESUME_CHECK_SIZE)
  39 /* Number of bytes to read at once */
  40 #define SMB_DEFAULT_BLOCKSIZE   64000
  41
  42 struct opt {
  43         char *workgroup;
  44         bool username_specified;
  45         char *username;
  46         bool password_specified;
  47         char *password;
  48
  49         char *outputfile;
  50         size_t blocksize;
  51
  52         bool nonprompt;
  53         bool quiet;
  54         bool dots;
  55         bool verbose;
  56         bool send_stdout;
  57         bool update;
  58         int debuglevel;
  59 };
  60 static struct opt opt = { .blocksize = SMB_DEFAULT_BLOCKSIZE };
  61
  62 static bool smb_download_file(const char *base, const char *name,
  63                               bool recursive, bool resume, bool toplevel,
  64                               char *outfile);
  65
  66 static int get_num_cols(void)
  67 {
  68 #ifdef TIOCGWINSZ
  69         struct winsize ws;
  70         if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) < 0) {
  71                 return 0;
  72         }
  73         return ws.ws_col;
  74 #else
  75 #warning No support for TIOCGWINSZ
  76         char *cols = getenv("COLUMNS");
  77         if (!cols) {
  78                 return 0;
  79         }
  80         return atoi(cols);
  81 #endif
  82 }
  83
  84 static void change_columns(int sig)
  85 {
  86         columns = get_num_cols();
  87 }
  88
  89 static void human_readable(off_t s, char *buffer, int l)
  90 {
  91         if (s > 1024 * 1024 * 1024) {
  92                 snprintf(buffer, l, "%.2fGB", 1.0 * s / (1024 * 1024 * 1024));
  93         } else if (s > 1024 * 1024) {
  94                 snprintf(buffer, l, "%.2fMB", 1.0 * s / (1024 * 1024));
  95         } else if (s > 1024) {
  96                 snprintf(buffer, l, "%.2fkB", 1.0 * s / 1024);
  97         } else {
  98                 snprintf(buffer, l, "%jdb", (intmax_t)s);
  99         }
 100 }
 101
 102 static void get_auth_data(const char *srv, const char *shr, char *wg, int wglen,
 103                           char *un, int unlen, char *pw, int pwlen)
 104 {
 105         static bool hasasked = false;
 106         static char *savedwg;
 107         static char *savedun;
 108         static char *savedpw;
 109
 110         if (hasasked) {
 111                 strncpy(wg, savedwg, wglen - 1);
 112                 strncpy(un, savedun, unlen - 1);
 113                 strncpy(pw, savedpw, pwlen - 1);
 114                 return;
 115         }
 116         hasasked = true;
 117
 118         /*
 119          * If no user has been specified un is initialized with the current
 120          * username of the user who started smbget.
 121          */
 122         if (opt.username_specified) {
 123                 strncpy(un, opt.username, unlen - 1);
 124         }
 125
 126         if (!opt.nonprompt && !opt.password_specified && pw[0] == '\0') {
 127                 char *prompt;
 128                 int rc;
 129
 130                 rc = asprintf(&prompt,
 131                               "Password for [%s] connecting to //%s/%s: ",
 132                               un, shr, srv);
 133                 if (rc == -1) {
 134                         return;
 135                 }
 136                 (void)samba_getpass(prompt, pw, pwlen, false, false);
 137                 free(prompt);
 138         } else if (opt.password != NULL) {
 139                 strncpy(pw, opt.password, pwlen-1);
 140         }
 141
 142         if (opt.workgroup != NULL) {
 143                 strncpy(wg, opt.workgroup, wglen-1);
 144         }
 145
 146         /* save the values found for later */
 147         savedwg = SMB_STRDUP(wg);
 148         savedun = SMB_STRDUP(un);
 149         savedpw = SMB_STRDUP(pw);
 150
 151         if (!opt.quiet) {
 152                 char *wgtmp, *usertmp;
 153                 wgtmp = SMB_STRNDUP(wg, wglen);
 154                 usertmp = SMB_STRNDUP(un, unlen);
 155                 printf("Using workgroup %s, %s%s\n",
 156                        wgtmp,
 157                        *usertmp ? "user " : "guest user",
 158                        usertmp);
 159                 free(wgtmp);
 160                 free(usertmp);
 161         }
 162 }
 163
 164 static bool smb_download_dir(const char *base, const char *name, int resume)
 165 {
 166         char path[SMB_MAXPATHLEN];
 167         int dirhandle;
 168         struct smbc_dirent *dirent;
 169         const char *relname = name;
 170         char *tmpname;
 171         bool ok = false;
 172
 173         snprintf(path, SMB_MAXPATHLEN-1, "%s%s%s", base,
 174                  (base[0] && name[0] && name[0] != '/' &&
 175                   base[strlen(base)-1] != '/') ? "/" : "",
 176                  name);
 177
 178         /* List files in directory and call smb_download_file on them */
 179         dirhandle = smbc_opendir(path);
 180         if (dirhandle < 1) {
 181                 if (errno == ENOTDIR) {
 182                         return smb_download_file(base, name, true, resume,
 183                                                  false, NULL);
 184                 }
 185                 fprintf(stderr, "Can't open directory %s: %s\n", path,
 186                         strerror(errno));
 187                 return false;
 188         }
 189
 190         while (*relname == '/') {
 191                 relname++;
 192         }
 193
 194         if (strlen(relname) > 0) {
 195                 int rc = mkdir(relname, 0755);
 196                 if (rc == -1 && errno != EEXIST) {
 197                         fprintf(stderr, "Can't create directory %s: %s\n",
 198                                 relname, strerror(errno));
 199                         return false;
 200                 }
 201         }
 202
 203         tmpname = SMB_STRDUP(name);
 204
 205         while ((dirent = smbc_readdir(dirhandle))) {
 206                 char *newname;
 207                 if (!strcmp(dirent->name, ".") || !strcmp(dirent->name, "..")) {
 208                         ok = true;
 209                         continue;
 210                 }
 211                 if (asprintf(&newname, "%s/%s", tmpname, dirent->name) == -1) {
 212                         free(tmpname);
 213                         return false;
 214                 }
 215                 switch (dirent->smbc_type) {
 216                 case SMBC_DIR:
 217                         ok = smb_download_dir(base, newname, resume);
 218                         break;
 219
 220                 case SMBC_WORKGROUP:
 221                         ok = smb_download_dir("smb://", dirent->name, resume);
 222                         break;
 223
 224                 case SMBC_SERVER:
 225                         ok = smb_download_dir("smb://", dirent->name, resume);
 226                         break;
 227
 228                 case SMBC_FILE:
 229                         ok = smb_download_file(base, newname, true, resume,
 230                                                 false, NULL);
 231                         break;
 232
 233                 case SMBC_FILE_SHARE:
 234                         ok = smb_download_dir(base, newname, resume);
 235                         break;
 236
 237                 case SMBC_PRINTER_SHARE:
 238                         if (!opt.quiet) {
 239                                 printf("Ignoring printer share %s\n",
 240                                        dirent->name);
 241                         }
 242                         break;
 243
 244                 case SMBC_COMMS_SHARE:
 245                         if (!opt.quiet) {
 246                                 printf("Ignoring comms share %s\n",
 247                                        dirent->name);
 248                         }
 249                         break;
 250
 251                 case SMBC_IPC_SHARE:
 252                         if (!opt.quiet) {
 253                                 printf("Ignoring ipc$ share %s\n",
 254                                        dirent->name);
 255                         }
 256                         break;
 257
 258                 default:
 259                         fprintf(stderr, "Ignoring file '%s' of type '%d'\n",
 260                                 newname, dirent->smbc_type);
 261                         break;
 262                 }
 263
 264                 if (!ok) {
 265                         fprintf(stderr, "Failed to download %s: %s\n",
 266                                 newname, strerror(errno));
 267                         free(tmpname);
 268                         return false;
 269                 }
 270                 free(newname);
 271         }
 272         free(tmpname);
 273
 274         smbc_closedir(dirhandle);
 275         return ok;
 276 }
 277
 278 static char *print_time(long t)
 279 {
 280         static char buffer[100];
 281         int secs, mins, hours;
 282         if (t < -1) {
 283                 strncpy(buffer, "Unknown", sizeof(buffer));
 284                 return buffer;
 285         }
 286
 287         secs = (int)t % 60;
 288         mins = (int)t / 60 % 60;
 289         hours = (int)t / (60 * 60);
 290         snprintf(buffer, sizeof(buffer) - 1, "%02d:%02d:%02d", hours, mins,
 291                  secs);
 292         return buffer;
 293 }
 294
 295 static void print_progress(const char *name, time_t start, time_t now,
 296                            off_t start_pos, off_t pos, off_t total)
 297 {
 298         double avg = 0.0;
 299         long eta = -1;
 300         double prcnt = 0.0;
 301         char hpos[22], htotal[22], havg[22];
 302         char *status, *filename;
 303         int len;
 304         if (now - start) {
 305                 avg = 1.0 * (pos - start_pos) / (now - start);
 306         }
 307         eta = (total - pos) / avg;
 308         if (total) {
 309                 prcnt = 100.0 * pos / total;
 310         }
 311
 312         human_readable(pos, hpos, sizeof(hpos));
 313         human_readable(total, htotal, sizeof(htotal));
 314         human_readable(avg, havg, sizeof(havg));
 315
 316         len = asprintf(&status, "%s of %s (%.2f%%) at %s/s ETA: %s", hpos,
 317                        htotal, prcnt, havg, print_time(eta));
 318         if (len == -1) {
 319                 return;
 320         }
 321
 322         if (columns) {
 323                 int required = strlen(name),
 324                     available = columns - len - strlen("[] ");
 325                 if (required > available) {
 326                         if (asprintf(&filename, "...%s",
 327                                      name + required - available + 3) == -1) {
 328                                 return;
 329                         }
 330                 } else {
 331                         filename = SMB_STRNDUP(name, available);
 332                 }
 333         } else {
 334                 filename = SMB_STRDUP(name);
 335         }
 336
 337         fprintf(stderr, "\r[%s] %s", filename, status);
 338
 339         free(filename);
 340         free(status);
 341 }
 342
 343 /* Return false on error, true on success. */
 344
 345 static bool smb_download_file(const char *base, const char *name,
 346                               bool recursive, bool resume, bool toplevel,
 347                               char *outfile)
 348 {
 349         int remotehandle, localhandle;
 350         time_t start_time = time_mono(NULL);
 351         const char *newpath;
 352         char path[SMB_MAXPATHLEN];
 353         char checkbuf[2][RESUME_CHECK_SIZE];
 354         char *readbuf = NULL;
 355         off_t offset_download = 0, offset_check = 0, curpos = 0,
 356               start_offset = 0;
 357         struct stat localstat, remotestat;
 358
 359         snprintf(path, SMB_MAXPATHLEN-1, "%s%s%s", base,
 360                  (*base && *name && name[0] != '/' &&
 361                   base[strlen(base)-1] != '/') ? "/" : "",
 362                  name);
 363
 364         remotehandle = smbc_open(path, O_RDONLY, 0755);
 365
 366         if (remotehandle < 0) {
 367                 switch (errno) {
 368                 case EISDIR:
 369                         if (!recursive) {
 370                                 fprintf(stderr,
 371                                         "%s is a directory. Specify -R "
 372                                         "to download recursively\n",
 373                                         path);
 374                                 return false;
 375                         }
 376                         return smb_download_dir(base, name, resume);
 377
 378                 case ENOENT:
 379                         fprintf(stderr,
 380                                 "%s can't be found on the remote server\n",
 381                                 path);
 382                         return false;
 383
 384                 case ENOMEM:
 385                         fprintf(stderr, "Not enough memory\n");
 386                         return false;
 387
 388                 case ENODEV:
 389                         fprintf(stderr,
 390                                 "The share name used in %s does not exist\n",
 391                                 path);
 392                         return false;
 393
 394                 case EACCES:
 395                         fprintf(stderr, "You don't have enough permissions "
 396                                 "to access %s\n",
 397                                 path);
 398                         return false;
 399
 400                 default:
 401                         perror("smbc_open");
 402                         return false;
 403                 }
 404         }
 405
 406         if (smbc_fstat(remotehandle, &remotestat) < 0) {
 407                 fprintf(stderr, "Can't stat %s: %s\n", path, strerror(errno));
 408                 return false;
 409         }
 410
 411         if (outfile) {
 412                 newpath = outfile;
 413         } else if (!name[0]) {
 414                 newpath = strrchr(base, '/');
 415                 if (newpath) {
 416                         newpath++;
 417                 } else {
 418                         newpath = base;
 419                 }
 420         } else {
 421                 newpath = name;
 422         }
 423
 424         if (!toplevel && (newpath[0] == '/')) {
 425                 newpath++;
 426         }
 427
 428         /* Open local file according to the mode */
 429         if (opt.update) {
 430                 /* if it is up-to-date, skip */
 431                 if (stat(newpath, &localstat) == 0 &&
 432                     localstat.st_mtime >= remotestat.st_mtime) {
 433                         if (opt.verbose) {
 434                                 printf("%s is up-to-date, skipping\n", newpath);
 435                         }
 436                         smbc_close(remotehandle);
 437                         return true;
 438                 }
 439                 /* else open it for writing and truncate if it exists */
 440                 localhandle = open(
 441                     newpath, O_CREAT | O_NONBLOCK | O_RDWR | O_TRUNC, 0775);
 442                 if (localhandle < 0) {
 443                         fprintf(stderr, "Can't open %s : %s\n", newpath,
 444                                 strerror(errno));
 445                         smbc_close(remotehandle);
 446                         return false;
 447                 }
 448                 /* no offset */
 449         } else if (!opt.send_stdout) {
 450                 localhandle = open(newpath, O_CREAT | O_NONBLOCK | O_RDWR |
 451                                                 (!resume ? O_EXCL : 0),
 452                                    0755);
 453                 if (localhandle < 0) {
 454                         fprintf(stderr, "Can't open %s: %s\n", newpath,
 455                                 strerror(errno));
 456                         smbc_close(remotehandle);
 457                         return false;
 458                 }
 459
 460                 if (fstat(localhandle, &localstat) != 0) {
 461                         fprintf(stderr, "Can't fstat %s: %s\n", newpath,
 462                                 strerror(errno));
 463                         smbc_close(remotehandle);
 464                         close(localhandle);
 465                         return false;
 466                 }
 467
 468                 start_offset = localstat.st_size;
 469
 470                 if (localstat.st_size &&
 471                     localstat.st_size == remotestat.st_size) {
 472                         if (opt.verbose) {
 473                                 fprintf(stderr, "%s is already downloaded "
 474                                         "completely.\n",
 475                                         path);
 476                         } else if (!opt.quiet) {
 477                                 fprintf(stderr, "%s\n", path);
 478                         }
 479                         smbc_close(remotehandle);
 480                         close(localhandle);
 481                         return true;
 482                 }
 483
 484                 if (localstat.st_size > RESUME_CHECK_OFFSET &&
 485                     remotestat.st_size > RESUME_CHECK_OFFSET) {
 486                         offset_download =
 487                             localstat.st_size - RESUME_DOWNLOAD_OFFSET;
 488                         offset_check = localstat.st_size - RESUME_CHECK_OFFSET;
 489                         if (opt.verbose) {
 490                                 printf("Trying to start resume of %s at %jd\n"
 491                                        "At the moment %jd of %jd bytes have "
 492                                        "been retrieved\n",
 493                                        newpath, (intmax_t)offset_check,
 494                                        (intmax_t)localstat.st_size,
 495                                        (intmax_t)remotestat.st_size);
 496                         }
 497                 }
 498
 499                 if (offset_check) {
 500                         off_t off1, off2;
 501                         /* First, check all bytes from offset_check to
 502                          * offset_download */
 503                         off1 = lseek(localhandle, offset_check, SEEK_SET);
 504                         if (off1 < 0) {
 505                                 fprintf(stderr,
 506                                         "Can't seek to %jd in local file %s\n",
 507                                         (intmax_t)offset_check, newpath);
 508                                 smbc_close(remotehandle);
 509                                 close(localhandle);
 510                                 return false;
 511                         }
 512
 513                         off2 = smbc_lseek(remotehandle, offset_check, SEEK_SET);
 514                         if (off2 < 0) {
 515                                 fprintf(stderr,
 516                                         "Can't seek to %jd in remote file %s\n",
 517                                         (intmax_t)offset_check, newpath);
 518                                 smbc_close(remotehandle);
 519                                 close(localhandle);
 520                                 return false;
 521                         }
 522
 523                         if (off1 != off2) {
 524                                 fprintf(stderr, "Offset in local and remote "
 525                                         "files are different "
 526                                         "(local: %jd, remote: %jd)\n",
 527                                         (intmax_t)off1, (intmax_t)off2);
 528                                 smbc_close(remotehandle);
 529                                 close(localhandle);
 530                                 return false;
 531                         }
 532
 533                         if (smbc_read(remotehandle, checkbuf[0],
 534                                       RESUME_CHECK_SIZE) != RESUME_CHECK_SIZE) {
 535                                 fprintf(stderr, "Can't read %d bytes from "
 536                                         "remote file %s\n",
 537                                         RESUME_CHECK_SIZE, path);
 538                                 smbc_close(remotehandle);
 539                                 close(localhandle);
 540                                 return false;
 541                         }
 542
 543                         if (read(localhandle, checkbuf[1], RESUME_CHECK_SIZE) !=
 544                             RESUME_CHECK_SIZE) {
 545                                 fprintf(stderr, "Can't read %d bytes from "
 546                                         "local file %s\n",
 547                                         RESUME_CHECK_SIZE, name);
 548                                 smbc_close(remotehandle);
 549                                 close(localhandle);
 550                                 return false;
 551                         }
 552
 553                         if (memcmp(checkbuf[0], checkbuf[1],
 554                                    RESUME_CHECK_SIZE) == 0) {
 555                                 if (opt.verbose) {
 556                                         printf("Current local and remote file "
 557                                                "appear to be the same. "
 558                                                "Starting download from "
 559                                                "offset %jd\n",
 560                                                (intmax_t)offset_download);
 561                                 }
 562                         } else {
 563                                 fprintf(stderr, "Local and remote file appear "
 564                                         "to be different, not "
 565                                         "doing resume for %s\n",
 566                                         path);
 567                                 smbc_close(remotehandle);
 568                                 close(localhandle);
 569                                 return false;
 570                         }
 571                 }
 572         } else {
 573                 localhandle = STDOUT_FILENO;
 574                 start_offset = 0;
 575                 offset_download = 0;
 576                 offset_check = 0;
 577         }
 578
 579         readbuf = (char *)SMB_MALLOC(opt.blocksize);
 580         if (!readbuf) {
 581                 fprintf(stderr, "Failed to allocate %zu bytes for read "
 582                                 "buffer (%s)", opt.blocksize, strerror(errno));
 583                 if (localhandle != STDOUT_FILENO) {
 584                         close(localhandle);
 585                 }
 586                 return false;
 587         }
 588
 589         /* Now, download all bytes from offset_download to the end */
 590         for (curpos = offset_download; curpos < remotestat.st_size;
 591              curpos += opt.blocksize) {
 592                 ssize_t bytesread;
 593                 ssize_t byteswritten;
 594
 595                 bytesread = smbc_read(remotehandle, readbuf, opt.blocksize);
 596                 if(bytesread < 0) {
 597                         fprintf(stderr,
 598                                 "Can't read %zu bytes at offset %jd, file %s\n",
 599                                 opt.blocksize, (intmax_t)curpos, path);
 600                         smbc_close(remotehandle);
 601                         if (localhandle != STDOUT_FILENO) {
 602                                 close(localhandle);
 603                         }
 604                         free(readbuf);
 605                         return false;
 606                 }
 607
 608                 total_bytes += bytesread;
 609
 610                 byteswritten = write(localhandle, readbuf, bytesread);
 611                 if (byteswritten != bytesread) {
 612                         fprintf(stderr,
 613                                 "Can't write %zd bytes to local file %s at "
 614                                 "offset %jd\n", bytesread, path,
 615                                 (intmax_t)curpos);
 616                         free(readbuf);
 617                         smbc_close(remotehandle);
 618                         if (localhandle != STDOUT_FILENO) {
 619                                 close(localhandle);
 620                         }
 621                         return false;
 622                 }
 623
 624                 if (opt.dots) {
 625                         fputc('.', stderr);
 626                 } else if (!opt.quiet) {
 627                         print_progress(newpath, start_time, time_mono(NULL),
 628                                        start_offset, curpos,
 629                                        remotestat.st_size);
 630                 }
 631         }
 632
 633         free(readbuf);
 634
 635         if (opt.dots) {
 636                 fputc('\n', stderr);
 637                 printf("%s downloaded\n", path);
 638         } else if (!opt.quiet) {
 639                 int i;
 640                 fprintf(stderr, "\r%s", path);
 641                 if (columns) {
 642                         for (i = strlen(path); i < columns; i++) {
 643                                 fputc(' ', stderr);
 644                         }
 645                 }
 646                 fputc('\n', stderr);
 647         }
 648
 649         smbc_close(remotehandle);
 650         if (localhandle != STDOUT_FILENO) {
 651                 close(localhandle);
 652         }
 653         return true;
 654 }
 655
 656 static void clean_exit(void)
 657 {
 658         char bs[100];
 659         human_readable(total_bytes, bs, sizeof(bs));
 660         if (!opt.quiet) {
 661                 fprintf(stderr, "Downloaded %s in %lu seconds\n", bs,
 662                         (unsigned long)(time_mono(NULL) - total_start_time));
 663         }
 664         exit(0);
 665 }
 666
 667 static void signal_quit(int v)
 668 {
 669         clean_exit();
 670 }
 671
 672 static int readrcfile(const char *name, const struct poptOption long_options[])
 673 {
 674         FILE *fd = fopen(name, "r");
 675         int lineno = 0, i;
 676         char var[101], val[101];
 677         bool found;
 678         int *intdata;
 679         char **stringdata;
 680         if (!fd) {
 681                 fprintf(stderr, "Can't open RC file %s\n", name);
 682                 return 1;
 683         }
 684
 685         while (!feof(fd)) {
 686                 lineno++;
 687                 if (fscanf(fd, "%100s %100s\n", var, val) < 2) {
 688                         fprintf(stderr,
 689                                 "Can't parse line %d of %s, ignoring.\n",
 690                                 lineno, name);
 691                         continue;
 692                 }
 693
 694                 found = false;
 695
 696                 for (i = 0; long_options[i].argInfo; i++) {
 697                         if (!long_options[i].longName) {
 698                                 continue;
 699                         }
 700                         if (strcmp(long_options[i].longName, var)) {
 701                                 continue;
 702                         }
 703                         if (!long_options[i].arg) {
 704                                 continue;
 705                         }
 706
 707                         switch (long_options[i].argInfo) {
 708                         case POPT_ARG_NONE:
 709                                 intdata = (int *)long_options[i].arg;
 710                                 if (!strcmp(val, "on")) {
 711                                         *intdata = 1;
 712                                 } else if (!strcmp(val, "off")) {
 713                                         *intdata = 0;
 714                                 } else {
 715                                         fprintf(stderr, "Illegal value %s for "
 716                                                 "%s at line %d in %s\n",
 717                                                 val, var, lineno, name);
 718                                 }
 719                                 break;
 720                         case POPT_ARG_INT:
 721                                 intdata = (int *)long_options[i].arg;
 722                                 *intdata = atoi(val);
 723                                 break;
 724                         case POPT_ARG_STRING:
 725                                 stringdata = (char **)long_options[i].arg;
 726                                 *stringdata = SMB_STRDUP(val);
 727                                 if (long_options[i].shortName == 'U') {
 728                                         char *p;
 729                                         opt.username_specified = true;
 730                                         p = strchr(*stringdata, '%');
 731                                         if (p != NULL) {
 732                                                 *p = '\0';
 733                                                 opt.password = p + 1;
 734                                                 opt.password_specified = true;
 735                                         }
 736                                 }
 737                                 break;
 738                         default:
 739                                 fprintf(stderr, "Invalid variable %s at "
 740                                         "line %d in %s\n",
 741                                         var, lineno, name);
 742                                 break;
 743                         }
 744
 745                         found = true;
 746                 }
 747                 if (!found) {
 748                         fprintf(stderr,
 749                                 "Invalid variable %s at line %d in %s\n", var,
 750                                 lineno, name);
 751                 }
 752         }
 753
 754         fclose(fd);
 755         return 0;
 756 }
 757
 758 int main(int argc, char **argv)
 759 {
 760         int c = 0;
 761         const char *file = NULL;
 762         char *rcfile = NULL;
 763         bool smb_encrypt = false;
 764         int resume = 0, recursive = 0;
 765         TALLOC_CTX *frame = talloc_stackframe();
 766         bool ret = true;
 767         char *p;
 768         const char **argv_const = discard_const_p(const char *, argv);
 769         struct poptOption long_options[] = {
 770                 POPT_AUTOHELP
 771
 772                 {"workgroup",  'w', POPT_ARG_STRING, &opt.workgroup,   'w', "Workgroup to use (optional)" },
 773                 {"user",       'U', POPT_ARG_STRING, &opt.username,    'U', "Username to use" },
 774                 {"guest",      'a', POPT_ARG_NONE,   NULL,             'a', "Work as user guest" },
 775
 776                 {"nonprompt",  'n', POPT_ARG_NONE,   NULL,             'n',  "Don't ask anything (non-interactive)" },
 777                 {"debuglevel", 'd', POPT_ARG_INT,    &opt.debuglevel,  'd', "Debuglevel to use" },
 778
 779                 {"encrypt",    'e', POPT_ARG_NONE,   NULL,             'e', "Encrypt SMB transport" },
 780                 {"resume",     'r', POPT_ARG_NONE,   NULL,             'r',  "Automatically resume aborted files" },
 781                 {"update",     'u', POPT_ARG_NONE,   NULL,             'u',  "Download only when remote file is newer than local file or local file is missing"},
 782                 {"recursive",  'R', POPT_ARG_NONE,   NULL,             'R',  "Recursively download files" },
 783                 {"blocksize",  'b', POPT_ARG_INT,    &opt.blocksize,   'b', "Change number of bytes in a block"},
 784
 785                 {"outputfile", 'o', POPT_ARG_STRING, &opt.outputfile,  'o', "Write downloaded data to specified file" },
 786                 {"stdout",     'O', POPT_ARG_NONE,   NULL,             'O',  "Write data to stdout" },
 787                 {"dots",       'D', POPT_ARG_NONE,   NULL,             'D',  "Show dots as progress indication" },
 788                 {"quiet",      'q', POPT_ARG_NONE,   NULL,             'q',  "Be quiet" },
 789                 {"verbose",    'v', POPT_ARG_NONE,   NULL,             'v',  "Be verbose" },
 790                 {"rcfile",     'f', POPT_ARG_STRING, NULL,             'f', "Use specified rc file"},
 791
 792                 POPT_TABLEEND
 793         };
 794         poptContext pc;
 795
 796         smb_init_locale();
 797
 798         /* only read rcfile if it exists */
 799         if (asprintf(&rcfile, "%s/.smbgetrc", getenv("HOME")) == -1) {
 800                 return 1;
 801         }
 802         if (access(rcfile, F_OK) == 0) {
 803                 readrcfile(rcfile, long_options);
 804         }
 805         free(rcfile);
 806
 807 #ifdef SIGWINCH
 808         signal(SIGWINCH, change_columns);
 809 #endif
 810         signal(SIGINT, signal_quit);
 811         signal(SIGTERM, signal_quit);
 812
 813         pc = poptGetContext(argv[0], argc, argv_const, long_options, 0);
 814
 815         while ((c = poptGetNextOpt(pc)) > 0) {
 816                 switch (c) {
 817                 case 'f':
 818                         readrcfile(poptGetOptArg(pc), long_options);
 819                         break;
 820                 case 'a':
 821                         opt.username_specified = true;
 822                         opt.username = talloc_strdup(frame, "");
 823                         opt.password_specified = true;
 824                         opt.password = talloc_strdup(frame, "");
 825                         break;
 826                 case 'e':
 827                         smb_encrypt = true;
 828                         break;
 829                 case 'U':
 830                         opt.username_specified = true;
 831                         opt.username = talloc_strdup(frame, opt.username);
 832                         p = strchr(opt.username,'%');
 833                         if (p != NULL) {
 834                                 *p = '\0';
 835                                 opt.password = p + 1;
 836                                 opt.password_specified = true;
 837                         }
 838                         break;
 839                 case 'n':
 840                         opt.nonprompt = true;
 841                         break;
 842                 case 'r':
 843                         resume = true;
 844                         break;
 845                 case 'u':
 846                         opt.update = true;
 847                         break;
 848                 case 'R':
 849                         recursive = true;
 850                         break;
 851                 case 'O':
 852                         opt.send_stdout = true;
 853                         break;
 854                 case 'D':
 855                         opt.dots = true;
 856                         break;
 857                 case 'q':
 858                         opt.quiet = true;
 859                         break;
 860                 case 'v':
 861                         opt.verbose = true;
 862                         break;
 863                 }
 864         }
 865
 866         if (c < -1) {
 867                 fprintf(stderr, "%s: %s\n",
 868                         poptBadOption(pc, POPT_BADOPTION_NOALIAS),
 869                         poptStrerror(c));
 870                 return 1;
 871         }
 872
 873         if ((opt.send_stdout || resume || opt.outputfile) && opt.update) {
 874                 fprintf(stderr, "The -o, -R or -O and -U options can not be "
 875                         "used together.\n");
 876                 return 1;
 877         }
 878         if ((opt.send_stdout || opt.outputfile) && recursive) {
 879                 fprintf(stderr, "The -o or -O and -R options can not be "
 880                         "used together.\n");
 881                 return 1;
 882         }
 883
 884         if (opt.outputfile && opt.send_stdout) {
 885                 fprintf(stderr, "The -o and -O options can not be "
 886                         "used together.\n");
 887                 return 1;
 888         }
 889
 890         popt_burn_cmdline_password(argc, argv);
 891
 892         cmdline_messaging_context(get_dyn_CONFIGFILE());
 893
 894         if (smbc_init(get_auth_data, opt.debuglevel) < 0) {
 895                 fprintf(stderr, "Unable to initialize libsmbclient\n");
 896                 return 1;
 897         }
 898
 899         if (smb_encrypt) {
 900                 SMBCCTX *smb_ctx = smbc_set_context(NULL);
 901                 smbc_option_set(smb_ctx,
 902                                 discard_const_p(char, "smb_encrypt_level"),
 903                                 "require");
 904         }
 905
 906         columns = get_num_cols();
 907
 908         total_start_time = time_mono(NULL);
 909
 910         while ((file = poptGetArg(pc))) {
 911                 if (!recursive) {
 912                         ret = smb_download_file(file, "", recursive, resume,
 913                                                 true, opt.outputfile);
 914                 } else {
 915                         ret = smb_download_dir(file, "", resume);
 916                 }
 917         }
 918
 919         TALLOC_FREE(frame);
 920         if (ret) {
 921                 clean_exit();
 922         }
 923         return ret?0:1;
 924 }