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