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         mkdir(relname, 0755);
 194
 195         tmpname = SMB_STRDUP(name);
 196
 197         while ((dirent = smbc_readdir(dirhandle))) {
 198                 char *newname;
 199                 if (!strcmp(dirent->name, ".") || !strcmp(dirent->name, "..")) {
 200                         continue;
 201                 }
 202                 if (asprintf(&newname, "%s/%s", tmpname, dirent->name) == -1) {
 203                         free(tmpname);
 204                         return false;
 205                 }
 206                 switch (dirent->smbc_type) {
 207                 case SMBC_DIR:
 208                         ok = smb_download_dir(base, newname, resume);
 209                         break;
 210
 211                 case SMBC_WORKGROUP:
 212                         ok = smb_download_dir("smb://", dirent->name, resume);
 213                         break;
 214
 215                 case SMBC_SERVER:
 216                         ok = smb_download_dir("smb://", dirent->name, resume);
 217                         break;
 218
 219                 case SMBC_FILE:
 220                         ok = smb_download_file(base, newname, true, resume,
 221                                                 false, NULL);
 222                         break;
 223
 224                 case SMBC_FILE_SHARE:
 225                         ok = smb_download_dir(base, newname, resume);
 226                         break;
 227
 228                 case SMBC_PRINTER_SHARE:
 229                         if (!opt.quiet) {
 230                                 printf("Ignoring printer share %s\n",
 231                                        dirent->name);
 232                         }
 233                         break;
 234
 235                 case SMBC_COMMS_SHARE:
 236                         if (!opt.quiet) {
 237                                 printf("Ignoring comms share %s\n",
 238                                        dirent->name);
 239                         }
 240                         break;
 241
 242                 case SMBC_IPC_SHARE:
 243                         if (!opt.quiet) {
 244                                 printf("Ignoring ipc$ share %s\n",
 245                                        dirent->name);
 246                         }
 247                         break;
 248
 249                 default:
 250                         fprintf(stderr, "Ignoring file '%s' of type '%d'\n",
 251                                 newname, dirent->smbc_type);
 252                         break;
 253                 }
 254
 255                 if (!ok) {
 256                         fprintf(stderr, "Failed to download %s: %s\n",
 257                                 newname, strerror(errno));
 258                         free(tmpname);
 259                         return false;
 260                 }
 261                 free(newname);
 262         }
 263         free(tmpname);
 264
 265         smbc_closedir(dirhandle);
 266         return ok;
 267 }
 268
 269 static char *print_time(long t)
 270 {
 271         static char buffer[100];
 272         int secs, mins, hours;
 273         if (t < -1) {
 274                 strncpy(buffer, "Unknown", sizeof(buffer));
 275                 return buffer;
 276         }
 277
 278         secs = (int)t % 60;
 279         mins = (int)t / 60 % 60;
 280         hours = (int)t / (60 * 60);
 281         snprintf(buffer, sizeof(buffer) - 1, "%02d:%02d:%02d", hours, mins,
 282                  secs);
 283         return buffer;
 284 }
 285
 286 static void print_progress(const char *name, time_t start, time_t now,
 287                            off_t start_pos, off_t pos, off_t total)
 288 {
 289         double avg = 0.0;
 290         long eta = -1;
 291         double prcnt = 0.0;
 292         char hpos[22], htotal[22], havg[22];
 293         char *status, *filename;
 294         int len;
 295         if (now - start) {
 296                 avg = 1.0 * (pos - start_pos) / (now - start);
 297         }
 298         eta = (total - pos) / avg;
 299         if (total) {
 300                 prcnt = 100.0 * pos / total;
 301         }
 302
 303         human_readable(pos, hpos, sizeof(hpos));
 304         human_readable(total, htotal, sizeof(htotal));
 305         human_readable(avg, havg, sizeof(havg));
 306
 307         len = asprintf(&status, "%s of %s (%.2f%%) at %s/s ETA: %s", hpos,
 308                        htotal, prcnt, havg, print_time(eta));
 309         if (len == -1) {
 310                 return;
 311         }
 312
 313         if (columns) {
 314                 int required = strlen(name),
 315                     available = columns - len - strlen("[] ");
 316                 if (required > available) {
 317                         if (asprintf(&filename, "...%s",
 318                                      name + required - available + 3) == -1) {
 319                                 return;
 320                         }
 321                 } else {
 322                         filename = SMB_STRNDUP(name, available);
 323                 }
 324         } else {
 325                 filename = SMB_STRDUP(name);
 326         }
 327
 328         fprintf(stderr, "\r[%s] %s", filename, status);
 329
 330         free(filename);
 331         free(status);
 332 }
 333
 334 /* Return false on error, true on success. */
 335
 336 static bool smb_download_file(const char *base, const char *name,
 337                               bool recursive, bool resume, bool toplevel,
 338                               char *outfile)
 339 {
 340         int remotehandle, localhandle;
 341         time_t start_time = time_mono(NULL);
 342         const char *newpath;
 343         char path[SMB_MAXPATHLEN];
 344         char checkbuf[2][RESUME_CHECK_SIZE];
 345         char *readbuf = NULL;
 346         off_t offset_download = 0, offset_check = 0, curpos = 0,
 347               start_offset = 0;
 348         struct stat localstat, remotestat;
 349
 350         snprintf(path, SMB_MAXPATHLEN-1, "%s%s%s", base,
 351                  (*base && *name && name[0] != '/' &&
 352                   base[strlen(base)-1] != '/') ? "/" : "",
 353                  name);
 354
 355         remotehandle = smbc_open(path, O_RDONLY, 0755);
 356
 357         if (remotehandle < 0) {
 358                 switch (errno) {
 359                 case EISDIR:
 360                         if (!recursive) {
 361                                 fprintf(stderr,
 362                                         "%s is a directory. Specify -R "
 363                                         "to download recursively\n",
 364                                         path);
 365                                 return false;
 366                         }
 367                         return smb_download_dir(base, name, resume);
 368
 369                 case ENOENT:
 370                         fprintf(stderr,
 371                                 "%s can't be found on the remote server\n",
 372                                 path);
 373                         return false;
 374
 375                 case ENOMEM:
 376                         fprintf(stderr, "Not enough memory\n");
 377                         return false;
 378
 379                 case ENODEV:
 380                         fprintf(stderr,
 381                                 "The share name used in %s does not exist\n",
 382                                 path);
 383                         return false;
 384
 385                 case EACCES:
 386                         fprintf(stderr, "You don't have enough permissions "
 387                                 "to access %s\n",
 388                                 path);
 389                         return false;
 390
 391                 default:
 392                         perror("smbc_open");
 393                         return false;
 394                 }
 395         }
 396
 397         if (smbc_fstat(remotehandle, &remotestat) < 0) {
 398                 fprintf(stderr, "Can't stat %s: %s\n", path, strerror(errno));
 399                 return false;
 400         }
 401
 402         if (outfile) {
 403                 newpath = outfile;
 404         } else if (!name[0]) {
 405                 newpath = strrchr(base, '/');
 406                 if (newpath) {
 407                         newpath++;
 408                 } else {
 409                         newpath = base;
 410                 }
 411         } else {
 412                 newpath = name;
 413         }
 414
 415         if (!toplevel && (newpath[0] == '/')) {
 416                 newpath++;
 417         }
 418
 419         /* Open local file according to the mode */
 420         if (opt.update) {
 421                 /* if it is up-to-date, skip */
 422                 if (stat(newpath, &localstat) == 0 &&
 423                     localstat.st_mtime >= remotestat.st_mtime) {
 424                         if (opt.verbose) {
 425                                 printf("%s is up-to-date, skipping\n", newpath);
 426                         }
 427                         smbc_close(remotehandle);
 428                         return true;
 429                 }
 430                 /* else open it for writing and truncate if it exists */
 431                 localhandle = open(
 432                     newpath, O_CREAT | O_NONBLOCK | O_RDWR | O_TRUNC, 0775);
 433                 if (localhandle < 0) {
 434                         fprintf(stderr, "Can't open %s : %s\n", newpath,
 435                                 strerror(errno));
 436                         smbc_close(remotehandle);
 437                         return false;
 438                 }
 439                 /* no offset */
 440         } else if (!opt.send_stdout) {
 441                 localhandle = open(newpath, O_CREAT | O_NONBLOCK | O_RDWR |
 442                                                 (!resume ? O_EXCL : 0),
 443                                    0755);
 444                 if (localhandle < 0) {
 445                         fprintf(stderr, "Can't open %s: %s\n", newpath,
 446                                 strerror(errno));
 447                         smbc_close(remotehandle);
 448                         return false;
 449                 }
 450
 451                 if (fstat(localhandle, &localstat) != 0) {
 452                         fprintf(stderr, "Can't fstat %s: %s\n", newpath,
 453                                 strerror(errno));
 454                         smbc_close(remotehandle);
 455                         close(localhandle);
 456                         return false;
 457                 }
 458
 459                 start_offset = localstat.st_size;
 460
 461                 if (localstat.st_size &&
 462                     localstat.st_size == remotestat.st_size) {
 463                         if (opt.verbose) {
 464                                 fprintf(stderr, "%s is already downloaded "
 465                                         "completely.\n",
 466                                         path);
 467                         } else if (!opt.quiet) {
 468                                 fprintf(stderr, "%s\n", path);
 469                         }
 470                         smbc_close(remotehandle);
 471                         close(localhandle);
 472                         return true;
 473                 }
 474
 475                 if (localstat.st_size > RESUME_CHECK_OFFSET &&
 476                     remotestat.st_size > RESUME_CHECK_OFFSET) {
 477                         offset_download =
 478                             localstat.st_size - RESUME_DOWNLOAD_OFFSET;
 479                         offset_check = localstat.st_size - RESUME_CHECK_OFFSET;
 480                         if (opt.verbose) {
 481                                 printf("Trying to start resume of %s at %jd\n"
 482                                        "At the moment %jd of %jd bytes have "
 483                                        "been retrieved\n",
 484                                        newpath, (intmax_t)offset_check,
 485                                        (intmax_t)localstat.st_size,
 486                                        (intmax_t)remotestat.st_size);
 487                         }
 488                 }
 489
 490                 if (offset_check) {
 491                         off_t off1, off2;
 492                         /* First, check all bytes from offset_check to
 493                          * offset_download */
 494                         off1 = lseek(localhandle, offset_check, SEEK_SET);
 495                         if (off1 < 0) {
 496                                 fprintf(stderr,
 497                                         "Can't seek to %jd in local file %s\n",
 498                                         (intmax_t)offset_check, newpath);
 499                                 smbc_close(remotehandle);
 500                                 close(localhandle);
 501                                 return false;
 502                         }
 503
 504                         off2 = smbc_lseek(remotehandle, offset_check, SEEK_SET);
 505                         if (off2 < 0) {
 506                                 fprintf(stderr,
 507                                         "Can't seek to %jd in remote file %s\n",
 508                                         (intmax_t)offset_check, newpath);
 509                                 smbc_close(remotehandle);
 510                                 close(localhandle);
 511                                 return false;
 512                         }
 513
 514                         if (off1 != off2) {
 515                                 fprintf(stderr, "Offset in local and remote "
 516                                         "files are different "
 517                                         "(local: %jd, remote: %jd)\n",
 518                                         (intmax_t)off1, (intmax_t)off2);
 519                                 smbc_close(remotehandle);
 520                                 close(localhandle);
 521                                 return false;
 522                         }
 523
 524                         if (smbc_read(remotehandle, checkbuf[0],
 525                                       RESUME_CHECK_SIZE) != RESUME_CHECK_SIZE) {
 526                                 fprintf(stderr, "Can't read %d bytes from "
 527                                         "remote file %s\n",
 528                                         RESUME_CHECK_SIZE, path);
 529                                 smbc_close(remotehandle);
 530                                 close(localhandle);
 531                                 return false;
 532                         }
 533
 534                         if (read(localhandle, checkbuf[1], RESUME_CHECK_SIZE) !=
 535                             RESUME_CHECK_SIZE) {
 536                                 fprintf(stderr, "Can't read %d bytes from "
 537                                         "local file %s\n",
 538                                         RESUME_CHECK_SIZE, name);
 539                                 smbc_close(remotehandle);
 540                                 close(localhandle);
 541                                 return false;
 542                         }
 543
 544                         if (memcmp(checkbuf[0], checkbuf[1],
 545                                    RESUME_CHECK_SIZE) == 0) {
 546                                 if (opt.verbose) {
 547                                         printf("Current local and remote file "
 548                                                "appear to be the same. "
 549                                                "Starting download from "
 550                                                "offset %jd\n",
 551                                                (intmax_t)offset_download);
 552                                 }
 553                         } else {
 554                                 fprintf(stderr, "Local and remote file appear "
 555                                         "to be different, not "
 556                                         "doing resume for %s\n",
 557                                         path);
 558                                 smbc_close(remotehandle);
 559                                 close(localhandle);
 560                                 return false;
 561                         }
 562                 }
 563         } else {
 564                 localhandle = STDOUT_FILENO;
 565                 start_offset = 0;
 566                 offset_download = 0;
 567                 offset_check = 0;
 568         }
 569
 570         readbuf = (char *)SMB_MALLOC(opt.blocksize);
 571         if (!readbuf) {
 572                 fprintf(stderr, "Failed to allocate %zu bytes for read "
 573                                 "buffer (%s)", opt.blocksize, strerror(errno));
 574                 if (localhandle != STDOUT_FILENO) {
 575                         close(localhandle);
 576                 }
 577                 return false;
 578         }
 579
 580         /* Now, download all bytes from offset_download to the end */
 581         for (curpos = offset_download; curpos < remotestat.st_size;
 582              curpos += opt.blocksize) {
 583                 ssize_t bytesread;
 584                 ssize_t byteswritten;
 585
 586                 bytesread = smbc_read(remotehandle, readbuf, opt.blocksize);
 587                 if(bytesread < 0) {
 588                         fprintf(stderr,
 589                                 "Can't read %zu bytes at offset %jd, file %s\n",
 590                                 opt.blocksize, (intmax_t)curpos, path);
 591                         smbc_close(remotehandle);
 592                         if (localhandle != STDOUT_FILENO) {
 593                                 close(localhandle);
 594                         }
 595                         free(readbuf);
 596                         return false;
 597                 }
 598
 599                 total_bytes += bytesread;
 600
 601                 byteswritten = write(localhandle, readbuf, bytesread);
 602                 if (byteswritten != bytesread) {
 603                         fprintf(stderr,
 604                                 "Can't write %zd bytes to local file %s at "
 605                                 "offset %jd\n", bytesread, path,
 606                                 (intmax_t)curpos);
 607                         free(readbuf);
 608                         smbc_close(remotehandle);
 609                         if (localhandle != STDOUT_FILENO) {
 610                                 close(localhandle);
 611                         }
 612                         return false;
 613                 }
 614
 615                 if (opt.dots) {
 616                         fputc('.', stderr);
 617                 } else if (!opt.quiet) {
 618                         print_progress(newpath, start_time, time_mono(NULL),
 619                                        start_offset, curpos,
 620                                        remotestat.st_size);
 621                 }
 622         }
 623
 624         free(readbuf);
 625
 626         if (opt.dots) {
 627                 fputc('\n', stderr);
 628                 printf("%s downloaded\n", path);
 629         } else if (!opt.quiet) {
 630                 int i;
 631                 fprintf(stderr, "\r%s", path);
 632                 if (columns) {
 633                         for (i = strlen(path); i < columns; i++) {
 634                                 fputc(' ', stderr);
 635                         }
 636                 }
 637                 fputc('\n', stderr);
 638         }
 639
 640         smbc_close(remotehandle);
 641         if (localhandle != STDOUT_FILENO) {
 642                 close(localhandle);
 643         }
 644         return true;
 645 }
 646
 647 static void clean_exit(void)
 648 {
 649         char bs[100];
 650         human_readable(total_bytes, bs, sizeof(bs));
 651         if (!opt.quiet) {
 652                 fprintf(stderr, "Downloaded %s in %lu seconds\n", bs,
 653                         (unsigned long)(time_mono(NULL) - total_start_time));
 654         }
 655         exit(0);
 656 }
 657
 658 static void signal_quit(int v)
 659 {
 660         clean_exit();
 661 }
 662
 663 static int readrcfile(const char *name, const struct poptOption long_options[])
 664 {
 665         FILE *fd = fopen(name, "r");
 666         int lineno = 0, i;
 667         char var[101], val[101];
 668         bool found;
 669         int *intdata;
 670         char **stringdata;
 671         if (!fd) {
 672                 fprintf(stderr, "Can't open RC file %s\n", name);
 673                 return 1;
 674         }
 675
 676         while (!feof(fd)) {
 677                 lineno++;
 678                 if (fscanf(fd, "%100s %100s\n", var, val) < 2) {
 679                         fprintf(stderr,
 680                                 "Can't parse line %d of %s, ignoring.\n",
 681                                 lineno, name);
 682                         continue;
 683                 }
 684
 685                 found = false;
 686
 687                 for (i = 0; long_options[i].argInfo; i++) {
 688                         if (!long_options[i].longName) {
 689                                 continue;
 690                         }
 691                         if (strcmp(long_options[i].longName, var)) {
 692                                 continue;
 693                         }
 694                         if (!long_options[i].arg) {
 695                                 continue;
 696                         }
 697
 698                         switch (long_options[i].argInfo) {
 699                         case POPT_ARG_NONE:
 700                                 intdata = (int *)long_options[i].arg;
 701                                 if (!strcmp(val, "on")) {
 702                                         *intdata = 1;
 703                                 } else if (!strcmp(val, "off")) {
 704                                         *intdata = 0;
 705                                 } else {
 706                                         fprintf(stderr, "Illegal value %s for "
 707                                                 "%s at line %d in %s\n",
 708                                                 val, var, lineno, name);
 709                                 }
 710                                 break;
 711                         case POPT_ARG_INT:
 712                                 intdata = (int *)long_options[i].arg;
 713                                 *intdata = atoi(val);
 714                                 break;
 715                         case POPT_ARG_STRING:
 716                                 stringdata = (char **)long_options[i].arg;
 717                                 *stringdata = SMB_STRDUP(val);
 718                                 if (long_options[i].shortName == 'U') {
 719                                         char *p;
 720                                         opt.username_specified = true;
 721                                         p = strchr(*stringdata, '%');
 722                                         if (p != NULL) {
 723                                                 *p = '\0';
 724                                                 opt.password = p + 1;
 725                                                 opt.password_specified = true;
 726                                         }
 727                                 }
 728                                 break;
 729                         default:
 730                                 fprintf(stderr, "Invalid variable %s at "
 731                                         "line %d in %s\n",
 732                                         var, lineno, name);
 733                                 break;
 734                         }
 735
 736                         found = true;
 737                 }
 738                 if (!found) {
 739                         fprintf(stderr,
 740                                 "Invalid variable %s at line %d in %s\n", var,
 741                                 lineno, name);
 742                 }
 743         }
 744
 745         fclose(fd);
 746         return 0;
 747 }
 748
 749 int main(int argc, char **argv)
 750 {
 751         int c = 0;
 752         const char *file = NULL;
 753         char *rcfile = NULL;
 754         bool smb_encrypt = false;
 755         int resume = 0, recursive = 0;
 756         TALLOC_CTX *frame = talloc_stackframe();
 757         bool ret = true;
 758         char *p;
 759         const char **argv_const = discard_const_p(const char *, argv);
 760         struct poptOption long_options[] = {
 761                 POPT_AUTOHELP
 762
 763                 {"workgroup",  'w', POPT_ARG_STRING, &opt.workgroup,   'w', "Workgroup to use (optional)" },
 764                 {"user",       'U', POPT_ARG_STRING, &opt.username,    'U', "Username to use" },
 765                 {"guest",      'a', POPT_ARG_NONE,   NULL,             'a', "Work as user guest" },
 766
 767                 {"nonprompt",  'n', POPT_ARG_NONE,   NULL,             'n',  "Don't ask anything (non-interactive)" },
 768                 {"debuglevel", 'd', POPT_ARG_INT,    &opt.debuglevel,  'd', "Debuglevel to use" },
 769
 770                 {"encrypt",    'e', POPT_ARG_NONE,   NULL,             'e', "Encrypt SMB transport" },
 771                 {"resume",     'r', POPT_ARG_NONE,   NULL,             'r',  "Automatically resume aborted files" },
 772                 {"update",     'u', POPT_ARG_NONE,   NULL,             'u',  "Download only when remote file is newer than local file or local file is missing"},
 773                 {"recursive",  'R', POPT_ARG_NONE,   NULL,             'R',  "Recursively download files" },
 774                 {"blocksize",  'b', POPT_ARG_INT,    &opt.blocksize,   'b', "Change number of bytes in a block"},
 775
 776                 {"outputfile", 'o', POPT_ARG_STRING, &opt.outputfile,  'o', "Write downloaded data to specified file" },
 777                 {"stdout",     'O', POPT_ARG_NONE,   NULL,             'O',  "Write data to stdout" },
 778                 {"dots",       'D', POPT_ARG_NONE,   NULL,             'D',  "Show dots as progress indication" },
 779                 {"quiet",      'q', POPT_ARG_NONE,   NULL,             'q',  "Be quiet" },
 780                 {"verbose",    'v', POPT_ARG_NONE,   NULL,             'v',  "Be verbose" },
 781                 {"rcfile",     'f', POPT_ARG_STRING, NULL,             'f', "Use specified rc file"},
 782
 783                 POPT_TABLEEND
 784         };
 785         poptContext pc;
 786
 787         smb_init_locale();
 788
 789         /* only read rcfile if it exists */
 790         if (asprintf(&rcfile, "%s/.smbgetrc", getenv("HOME")) == -1) {
 791                 return 1;
 792         }
 793         if (access(rcfile, F_OK) == 0) {
 794                 readrcfile(rcfile, long_options);
 795         }
 796         free(rcfile);
 797
 798 #ifdef SIGWINCH
 799         signal(SIGWINCH, change_columns);
 800 #endif
 801         signal(SIGINT, signal_quit);
 802         signal(SIGTERM, signal_quit);
 803
 804         pc = poptGetContext(argv[0], argc, argv_const, long_options, 0);
 805
 806         while ((c = poptGetNextOpt(pc)) > 0) {
 807                 switch (c) {
 808                 case 'f':
 809                         readrcfile(poptGetOptArg(pc), long_options);
 810                         break;
 811                 case 'a':
 812                         opt.username_specified = true;
 813                         opt.username = talloc_strdup(frame, "");
 814                         opt.password_specified = true;
 815                         opt.password = talloc_strdup(frame, "");
 816                         break;
 817                 case 'e':
 818                         smb_encrypt = true;
 819                         break;
 820                 case 'U':
 821                         opt.username_specified = true;
 822                         opt.username = talloc_strdup(frame, opt.username);
 823                         p = strchr(opt.username,'%');
 824                         if (p != NULL) {
 825                                 *p = '\0';
 826                                 opt.password = p + 1;
 827                                 opt.password_specified = true;
 828                         }
 829                         break;
 830                 case 'n':
 831                         opt.nonprompt = true;
 832                         break;
 833                 case 'r':
 834                         resume = true;
 835                         break;
 836                 case 'u':
 837                         opt.update = true;
 838                         break;
 839                 case 'R':
 840                         recursive = true;
 841                         break;
 842                 case 'O':
 843                         opt.send_stdout = true;
 844                         break;
 845                 case 'D':
 846                         opt.dots = true;
 847                         break;
 848                 case 'q':
 849                         opt.quiet = true;
 850                         break;
 851                 case 'v':
 852                         opt.verbose = true;
 853                         break;
 854                 }
 855         }
 856
 857         if (c < -1) {
 858                 fprintf(stderr, "%s: %s\n",
 859                         poptBadOption(pc, POPT_BADOPTION_NOALIAS),
 860                         poptStrerror(c));
 861                 return 1;
 862         }
 863
 864         if ((opt.send_stdout || resume || opt.outputfile) && opt.update) {
 865                 fprintf(stderr, "The -o, -R or -O and -U options can not be "
 866                         "used together.\n");
 867                 return 1;
 868         }
 869         if ((opt.send_stdout || opt.outputfile) && recursive) {
 870                 fprintf(stderr, "The -o or -O and -R options can not be "
 871                         "used together.\n");
 872                 return 1;
 873         }
 874
 875         if (opt.outputfile && opt.send_stdout) {
 876                 fprintf(stderr, "The -o and -O options can not be "
 877                         "used together.\n");
 878                 return 1;
 879         }
 880
 881         popt_burn_cmdline_password(argc, argv);
 882
 883         cmdline_messaging_context(get_dyn_CONFIGFILE());
 884
 885         if (smbc_init(get_auth_data, opt.debuglevel) < 0) {
 886                 fprintf(stderr, "Unable to initialize libsmbclient\n");
 887                 return 1;
 888         }
 889
 890         if (smb_encrypt) {
 891                 SMBCCTX *smb_ctx = smbc_set_context(NULL);
 892                 smbc_option_set(smb_ctx,
 893                                 discard_const_p(char, "smb_encrypt_level"),
 894                                 "require");
 895         }
 896
 897         columns = get_num_cols();
 898
 899         total_start_time = time_mono(NULL);
 900
 901         while ((file = poptGetArg(pc))) {
 902                 if (!recursive) {
 903                         ret = smb_download_file(file, "", recursive, resume,
 904                                                 true, opt.outputfile);
 905                 } else {
 906                         ret = smb_download_dir(file, "", resume);
 907                 }
 908         }
 909
 910         TALLOC_FREE(frame);
 911         if (ret) {
 912                 clean_exit();
 913         }
 914         return ret?0:1;
 915 }