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                         return false;
 258                 }
 259                 free(newname);
 260         }
 261         free(tmpname);
 262
 263         smbc_closedir(dirhandle);
 264         return ok;
 265 }
 266
 267 static char *print_time(long t)
 268 {
 269         static char buffer[100];
 270         int secs, mins, hours;
 271         if (t < -1) {
 272                 strncpy(buffer, "Unknown", sizeof(buffer));
 273                 return buffer;
 274         }
 275
 276         secs = (int)t % 60;
 277         mins = (int)t / 60 % 60;
 278         hours = (int)t / (60 * 60);
 279         snprintf(buffer, sizeof(buffer) - 1, "%02d:%02d:%02d", hours, mins,
 280                  secs);
 281         return buffer;
 282 }
 283
 284 static void print_progress(const char *name, time_t start, time_t now,
 285                            off_t start_pos, off_t pos, off_t total)
 286 {
 287         double avg = 0.0;
 288         long eta = -1;
 289         double prcnt = 0.0;
 290         char hpos[20], htotal[20], havg[20];
 291         char *status, *filename;
 292         int len;
 293         if (now - start) {
 294                 avg = 1.0 * (pos - start_pos) / (now - start);
 295         }
 296         eta = (total - pos) / avg;
 297         if (total) {
 298                 prcnt = 100.0 * pos / total;
 299         }
 300
 301         human_readable(pos, hpos, sizeof(hpos));
 302         human_readable(total, htotal, sizeof(htotal));
 303         human_readable(avg, havg, sizeof(havg));
 304
 305         len = asprintf(&status, "%s of %s (%.2f%%) at %s/s ETA: %s", hpos,
 306                        htotal, prcnt, havg, print_time(eta));
 307         if (len == -1) {
 308                 return;
 309         }
 310
 311         if (columns) {
 312                 int required = strlen(name),
 313                     available = columns - len - strlen("[] ");
 314                 if (required > available) {
 315                         if (asprintf(&filename, "...%s",
 316                                      name + required - available + 3) == -1) {
 317                                 return;
 318                         }
 319                 } else {
 320                         filename = SMB_STRNDUP(name, available);
 321                 }
 322         } else {
 323                 filename = SMB_STRDUP(name);
 324         }
 325
 326         fprintf(stderr, "\r[%s] %s", filename, status);
 327
 328         free(filename);
 329         free(status);
 330 }
 331
 332 /* Return false on error, true on success. */
 333
 334 static bool smb_download_file(const char *base, const char *name,
 335                               bool recursive, bool resume, bool toplevel,
 336                               char *outfile)
 337 {
 338         int remotehandle, localhandle;
 339         time_t start_time = time_mono(NULL);
 340         const char *newpath;
 341         char path[SMB_MAXPATHLEN];
 342         char checkbuf[2][RESUME_CHECK_SIZE];
 343         char *readbuf = NULL;
 344         off_t offset_download = 0, offset_check = 0, curpos = 0,
 345               start_offset = 0;
 346         struct stat localstat, remotestat;
 347
 348         snprintf(path, SMB_MAXPATHLEN-1, "%s%s%s", base,
 349                  (*base && *name && name[0] != '/' &&
 350                   base[strlen(base)-1] != '/') ? "/" : "",
 351                  name);
 352
 353         remotehandle = smbc_open(path, O_RDONLY, 0755);
 354
 355         if (remotehandle < 0) {
 356                 switch (errno) {
 357                 case EISDIR:
 358                         if (!recursive) {
 359                                 fprintf(stderr,
 360                                         "%s is a directory. Specify -R "
 361                                         "to download recursively\n",
 362                                         path);
 363                                 return false;
 364                         }
 365                         return smb_download_dir(base, name, resume);
 366
 367                 case ENOENT:
 368                         fprintf(stderr,
 369                                 "%s can't be found on the remote server\n",
 370                                 path);
 371                         return false;
 372
 373                 case ENOMEM:
 374                         fprintf(stderr, "Not enough memory\n");
 375                         return false;
 376
 377                 case ENODEV:
 378                         fprintf(stderr,
 379                                 "The share name used in %s does not exist\n",
 380                                 path);
 381                         return false;
 382
 383                 case EACCES:
 384                         fprintf(stderr, "You don't have enough permissions "
 385                                 "to access %s\n",
 386                                 path);
 387                         return false;
 388
 389                 default:
 390                         perror("smbc_open");
 391                         return false;
 392                 }
 393         }
 394
 395         if (smbc_fstat(remotehandle, &remotestat) < 0) {
 396                 fprintf(stderr, "Can't stat %s: %s\n", path, strerror(errno));
 397                 return false;
 398         }
 399
 400         if (outfile) {
 401                 newpath = outfile;
 402         } else if (!name[0]) {
 403                 newpath = strrchr(base, '/');
 404                 if (newpath) {
 405                         newpath++;
 406                 } else {
 407                         newpath = base;
 408                 }
 409         } else {
 410                 newpath = name;
 411         }
 412
 413         if (!toplevel && (newpath[0] == '/')) {
 414                 newpath++;
 415         }
 416
 417         /* Open local file according to the mode */
 418         if (opt.update) {
 419                 /* if it is up-to-date, skip */
 420                 if (stat(newpath, &localstat) == 0 &&
 421                     localstat.st_mtime >= remotestat.st_mtime) {
 422                         if (opt.verbose) {
 423                                 printf("%s is up-to-date, skipping\n", newpath);
 424                         }
 425                         smbc_close(remotehandle);
 426                         return true;
 427                 }
 428                 /* else open it for writing and truncate if it exists */
 429                 localhandle = open(
 430                     newpath, O_CREAT | O_NONBLOCK | O_RDWR | O_TRUNC, 0775);
 431                 if (localhandle < 0) {
 432                         fprintf(stderr, "Can't open %s : %s\n", newpath,
 433                                 strerror(errno));
 434                         smbc_close(remotehandle);
 435                         return false;
 436                 }
 437                 /* no offset */
 438         } else if (!opt.send_stdout) {
 439                 localhandle = open(newpath, O_CREAT | O_NONBLOCK | O_RDWR |
 440                                                 (!resume ? O_EXCL : 0),
 441                                    0755);
 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
 449                 if (fstat(localhandle, &localstat) != 0) {
 450                         fprintf(stderr, "Can't fstat %s: %s\n", newpath,
 451                                 strerror(errno));
 452                         smbc_close(remotehandle);
 453                         close(localhandle);
 454                         return false;
 455                 }
 456
 457                 start_offset = localstat.st_size;
 458
 459                 if (localstat.st_size &&
 460                     localstat.st_size == remotestat.st_size) {
 461                         if (opt.verbose) {
 462                                 fprintf(stderr, "%s is already downloaded "
 463                                         "completely.\n",
 464                                         path);
 465                         } else if (!opt.quiet) {
 466                                 fprintf(stderr, "%s\n", path);
 467                         }
 468                         smbc_close(remotehandle);
 469                         close(localhandle);
 470                         return true;
 471                 }
 472
 473                 if (localstat.st_size > RESUME_CHECK_OFFSET &&
 474                     remotestat.st_size > RESUME_CHECK_OFFSET) {
 475                         offset_download =
 476                             localstat.st_size - RESUME_DOWNLOAD_OFFSET;
 477                         offset_check = localstat.st_size - RESUME_CHECK_OFFSET;
 478                         if (opt.verbose) {
 479                                 printf("Trying to start resume of %s at %jd\n"
 480                                        "At the moment %jd of %jd bytes have "
 481                                        "been retrieved\n",
 482                                        newpath, (intmax_t)offset_check,
 483                                        (intmax_t)localstat.st_size,
 484                                        (intmax_t)remotestat.st_size);
 485                         }
 486                 }
 487
 488                 if (offset_check) {
 489                         off_t off1, off2;
 490                         /* First, check all bytes from offset_check to
 491                          * offset_download */
 492                         off1 = lseek(localhandle, offset_check, SEEK_SET);
 493                         if (off1 < 0) {
 494                                 fprintf(stderr,
 495                                         "Can't seek to %jd in local file %s\n",
 496                                         (intmax_t)offset_check, newpath);
 497                                 smbc_close(remotehandle);
 498                                 close(localhandle);
 499                                 return false;
 500                         }
 501
 502                         off2 = smbc_lseek(remotehandle, offset_check, SEEK_SET);
 503                         if (off2 < 0) {
 504                                 fprintf(stderr,
 505                                         "Can't seek to %jd in remote file %s\n",
 506                                         (intmax_t)offset_check, newpath);
 507                                 smbc_close(remotehandle);
 508                                 close(localhandle);
 509                                 return false;
 510                         }
 511
 512                         if (off1 != off2) {
 513                                 fprintf(stderr, "Offset in local and remote "
 514                                         "files are different "
 515                                         "(local: %jd, remote: %jd)\n",
 516                                         (intmax_t)off1, (intmax_t)off2);
 517                                 smbc_close(remotehandle);
 518                                 close(localhandle);
 519                                 return false;
 520                         }
 521
 522                         if (smbc_read(remotehandle, checkbuf[0],
 523                                       RESUME_CHECK_SIZE) != RESUME_CHECK_SIZE) {
 524                                 fprintf(stderr, "Can't read %d bytes from "
 525                                         "remote file %s\n",
 526                                         RESUME_CHECK_SIZE, path);
 527                                 smbc_close(remotehandle);
 528                                 close(localhandle);
 529                                 return false;
 530                         }
 531
 532                         if (read(localhandle, checkbuf[1], RESUME_CHECK_SIZE) !=
 533                             RESUME_CHECK_SIZE) {
 534                                 fprintf(stderr, "Can't read %d bytes from "
 535                                         "local file %s\n",
 536                                         RESUME_CHECK_SIZE, name);
 537                                 smbc_close(remotehandle);
 538                                 close(localhandle);
 539                                 return false;
 540                         }
 541
 542                         if (memcmp(checkbuf[0], checkbuf[1],
 543                                    RESUME_CHECK_SIZE) == 0) {
 544                                 if (opt.verbose) {
 545                                         printf("Current local and remote file "
 546                                                "appear to be the same. "
 547                                                "Starting download from "
 548                                                "offset %jd\n",
 549                                                (intmax_t)offset_download);
 550                                 }
 551                         } else {
 552                                 fprintf(stderr, "Local and remote file appear "
 553                                         "to be different, not "
 554                                         "doing resume for %s\n",
 555                                         path);
 556                                 smbc_close(remotehandle);
 557                                 close(localhandle);
 558                                 return false;
 559                         }
 560                 }
 561         } else {
 562                 localhandle = STDOUT_FILENO;
 563                 start_offset = 0;
 564                 offset_download = 0;
 565                 offset_check = 0;
 566         }
 567
 568         readbuf = (char *)SMB_MALLOC(opt.blocksize);
 569         if (!readbuf) {
 570                 fprintf(stderr, "Failed to allocate %zu bytes for read "
 571                                 "buffer (%s)", opt.blocksize, strerror(errno));
 572                 if (localhandle != STDOUT_FILENO) {
 573                         close(localhandle);
 574                 }
 575                 return false;
 576         }
 577
 578         /* Now, download all bytes from offset_download to the end */
 579         for (curpos = offset_download; curpos < remotestat.st_size;
 580              curpos += opt.blocksize) {
 581                 ssize_t bytesread;
 582                 ssize_t byteswritten;
 583
 584                 bytesread = smbc_read(remotehandle, readbuf, opt.blocksize);
 585                 if(bytesread < 0) {
 586                         fprintf(stderr,
 587                                 "Can't read %zu bytes at offset %jd, file %s\n",
 588                                 opt.blocksize, (intmax_t)curpos, path);
 589                         smbc_close(remotehandle);
 590                         if (localhandle != STDOUT_FILENO) {
 591                                 close(localhandle);
 592                         }
 593                         free(readbuf);
 594                         return false;
 595                 }
 596
 597                 total_bytes += bytesread;
 598
 599                 byteswritten = write(localhandle, readbuf, bytesread);
 600                 if (byteswritten != bytesread) {
 601                         fprintf(stderr,
 602                                 "Can't write %zd bytes to local file %s at "
 603                                 "offset %jd\n", bytesread, path,
 604                                 (intmax_t)curpos);
 605                         free(readbuf);
 606                         smbc_close(remotehandle);
 607                         if (localhandle != STDOUT_FILENO) {
 608                                 close(localhandle);
 609                         }
 610                         return false;
 611                 }
 612
 613                 if (opt.dots) {
 614                         fputc('.', stderr);
 615                 } else if (!opt.quiet) {
 616                         print_progress(newpath, start_time, time_mono(NULL),
 617                                        start_offset, curpos,
 618                                        remotestat.st_size);
 619                 }
 620         }
 621
 622         free(readbuf);
 623
 624         if (opt.dots) {
 625                 fputc('\n', stderr);
 626                 printf("%s downloaded\n", path);
 627         } else if (!opt.quiet) {
 628                 int i;
 629                 fprintf(stderr, "\r%s", path);
 630                 if (columns) {
 631                         for (i = strlen(path); i < columns; i++) {
 632                                 fputc(' ', stderr);
 633                         }
 634                 }
 635                 fputc('\n', stderr);
 636         }
 637
 638         smbc_close(remotehandle);
 639         if (localhandle != STDOUT_FILENO) {
 640                 close(localhandle);
 641         }
 642         return true;
 643 }
 644
 645 static void clean_exit(void)
 646 {
 647         char bs[100];
 648         human_readable(total_bytes, bs, sizeof(bs));
 649         if (!opt.quiet) {
 650                 fprintf(stderr, "Downloaded %s in %lu seconds\n", bs,
 651                         (unsigned long)(time_mono(NULL) - total_start_time));
 652         }
 653         exit(0);
 654 }
 655
 656 static void signal_quit(int v)
 657 {
 658         clean_exit();
 659 }
 660
 661 static int readrcfile(const char *name, const struct poptOption long_options[])
 662 {
 663         FILE *fd = fopen(name, "r");
 664         int lineno = 0, i;
 665         char var[101], val[101];
 666         bool found;
 667         int *intdata;
 668         char **stringdata;
 669         if (!fd) {
 670                 fprintf(stderr, "Can't open RC file %s\n", name);
 671                 return 1;
 672         }
 673
 674         while (!feof(fd)) {
 675                 lineno++;
 676                 if (fscanf(fd, "%100s %100s\n", var, val) < 2) {
 677                         fprintf(stderr,
 678                                 "Can't parse line %d of %s, ignoring.\n",
 679                                 lineno, name);
 680                         continue;
 681                 }
 682
 683                 found = false;
 684
 685                 for (i = 0; long_options[i].argInfo; i++) {
 686                         if (!long_options[i].longName) {
 687                                 continue;
 688                         }
 689                         if (strcmp(long_options[i].longName, var)) {
 690                                 continue;
 691                         }
 692                         if (!long_options[i].arg) {
 693                                 continue;
 694                         }
 695
 696                         switch (long_options[i].argInfo) {
 697                         case POPT_ARG_NONE:
 698                                 intdata = (int *)long_options[i].arg;
 699                                 if (!strcmp(val, "on")) {
 700                                         *intdata = 1;
 701                                 } else if (!strcmp(val, "off")) {
 702                                         *intdata = 0;
 703                                 } else {
 704                                         fprintf(stderr, "Illegal value %s for "
 705                                                 "%s at line %d in %s\n",
 706                                                 val, var, lineno, name);
 707                                 }
 708                                 break;
 709                         case POPT_ARG_INT:
 710                                 intdata = (int *)long_options[i].arg;
 711                                 *intdata = atoi(val);
 712                                 break;
 713                         case POPT_ARG_STRING:
 714                                 stringdata = (char **)long_options[i].arg;
 715                                 *stringdata = SMB_STRDUP(val);
 716                                 if (long_options[i].shortName == 'U') {
 717                                         char *p;
 718                                         opt.username_specified = true;
 719                                         p = strchr(*stringdata, '%');
 720                                         if (p != NULL) {
 721                                                 *p = '\0';
 722                                                 opt.password = p + 1;
 723                                                 opt.password_specified = true;
 724                                         }
 725                                 }
 726                                 break;
 727                         default:
 728                                 fprintf(stderr, "Invalid variable %s at "
 729                                         "line %d in %s\n",
 730                                         var, lineno, name);
 731                                 break;
 732                         }
 733
 734                         found = true;
 735                 }
 736                 if (!found) {
 737                         fprintf(stderr,
 738                                 "Invalid variable %s at line %d in %s\n", var,
 739                                 lineno, name);
 740                 }
 741         }
 742
 743         fclose(fd);
 744         return 0;
 745 }
 746
 747 int main(int argc, char **argv)
 748 {
 749         int c = 0;
 750         const char *file = NULL;
 751         char *rcfile = NULL;
 752         bool smb_encrypt = false;
 753         int resume = 0, recursive = 0;
 754         TALLOC_CTX *frame = talloc_stackframe();
 755         bool ret = true;
 756         char *p;
 757         const char **argv_const = discard_const_p(const char *, argv);
 758         struct poptOption long_options[] = {
 759                 POPT_AUTOHELP
 760
 761                 {"workgroup",  'w', POPT_ARG_STRING, &opt.workgroup,   'w', "Workgroup to use (optional)" },
 762                 {"user",       'U', POPT_ARG_STRING, &opt.username,    'U', "Username to use" },
 763                 {"guest",      'a', POPT_ARG_NONE,   NULL,             'a', "Work as user guest" },
 764
 765                 {"nonprompt",  'n', POPT_ARG_NONE,   NULL,             'n',  "Don't ask anything (non-interactive)" },
 766                 {"debuglevel", 'd', POPT_ARG_INT,    &opt.debuglevel,  'd', "Debuglevel to use" },
 767
 768                 {"encrypt",    'e', POPT_ARG_NONE,   NULL,             'e', "Encrypt SMB transport" },
 769                 {"resume",     'r', POPT_ARG_NONE,   NULL,             'r',  "Automatically resume aborted files" },
 770                 {"update",     'u', POPT_ARG_NONE,   NULL,             'u',  "Download only when remote file is newer than local file or local file is missing"},
 771                 {"recursive",  'R', POPT_ARG_NONE,   NULL,             'R',  "Recursively download files" },
 772                 {"blocksize",  'b', POPT_ARG_INT,    &opt.blocksize,   'b', "Change number of bytes in a block"},
 773
 774                 {"outputfile", 'o', POPT_ARG_STRING, &opt.outputfile,  'o', "Write downloaded data to specified file" },
 775                 {"stdout",     'O', POPT_ARG_NONE,   NULL,             'O',  "Write data to stdout" },
 776                 {"dots",       'D', POPT_ARG_NONE,   NULL,             'D',  "Show dots as progress indication" },
 777                 {"quiet",      'q', POPT_ARG_NONE,   NULL,             'q',  "Be quiet" },
 778                 {"verbose",    'v', POPT_ARG_NONE,   NULL,             'v',  "Be verbose" },
 779                 {"rcfile",     'f', POPT_ARG_STRING, NULL,             'f', "Use specified rc file"},
 780
 781                 POPT_TABLEEND
 782         };
 783         poptContext pc;
 784
 785         smb_init_locale();
 786
 787         /* only read rcfile if it exists */
 788         if (asprintf(&rcfile, "%s/.smbgetrc", getenv("HOME")) == -1) {
 789                 return 1;
 790         }
 791         if (access(rcfile, F_OK) == 0) {
 792                 readrcfile(rcfile, long_options);
 793         }
 794         free(rcfile);
 795
 796 #ifdef SIGWINCH
 797         signal(SIGWINCH, change_columns);
 798 #endif
 799         signal(SIGINT, signal_quit);
 800         signal(SIGTERM, signal_quit);
 801
 802         pc = poptGetContext(argv[0], argc, argv_const, long_options, 0);
 803
 804         while ((c = poptGetNextOpt(pc)) > 0) {
 805                 switch (c) {
 806                 case 'f':
 807                         readrcfile(poptGetOptArg(pc), long_options);
 808                         break;
 809                 case 'a':
 810                         opt.username_specified = true;
 811                         opt.username = talloc_strdup(frame, "");
 812                         opt.password_specified = true;
 813                         opt.password = talloc_strdup(frame, "");
 814                         break;
 815                 case 'e':
 816                         smb_encrypt = true;
 817                         break;
 818                 case 'U':
 819                         opt.username_specified = true;
 820                         opt.username = talloc_strdup(frame, opt.username);
 821                         p = strchr(opt.username,'%');
 822                         if (p != NULL) {
 823                                 *p = '\0';
 824                                 opt.password = p + 1;
 825                                 opt.password_specified = true;
 826                         }
 827                         break;
 828                 case 'n':
 829                         opt.nonprompt = true;
 830                         break;
 831                 case 'r':
 832                         resume = true;
 833                         break;
 834                 case 'u':
 835                         opt.update = true;
 836                         break;
 837                 case 'R':
 838                         recursive = true;
 839                         break;
 840                 case 'O':
 841                         opt.send_stdout = true;
 842                         break;
 843                 case 'D':
 844                         opt.dots = true;
 845                         break;
 846                 case 'q':
 847                         opt.quiet = true;
 848                         break;
 849                 case 'v':
 850                         opt.verbose = true;
 851                         break;
 852                 }
 853         }
 854
 855         if (c < -1) {
 856                 fprintf(stderr, "%s: %s\n",
 857                         poptBadOption(pc, POPT_BADOPTION_NOALIAS),
 858                         poptStrerror(c));
 859                 return 1;
 860         }
 861
 862         if ((opt.send_stdout || resume || opt.outputfile) && opt.update) {
 863                 fprintf(stderr, "The -o, -R or -O and -U options can not be "
 864                         "used together.\n");
 865                 return 1;
 866         }
 867         if ((opt.send_stdout || opt.outputfile) && recursive) {
 868                 fprintf(stderr, "The -o or -O and -R options can not be "
 869                         "used together.\n");
 870                 return 1;
 871         }
 872
 873         if (opt.outputfile && opt.send_stdout) {
 874                 fprintf(stderr, "The -o and -O options can not be "
 875                         "used together.\n");
 876                 return 1;
 877         }
 878
 879         popt_burn_cmdline_password(argc, argv);
 880
 881         if (smbc_init(get_auth_data, opt.debuglevel) < 0) {
 882                 fprintf(stderr, "Unable to initialize libsmbclient\n");
 883                 return 1;
 884         }
 885
 886         if (smb_encrypt) {
 887                 SMBCCTX *smb_ctx = smbc_set_context(NULL);
 888                 smbc_option_set(smb_ctx,
 889                                 discard_const_p(char, "smb_encrypt_level"),
 890                                 "require");
 891         }
 892
 893         columns = get_num_cols();
 894
 895         total_start_time = time_mono(NULL);
 896
 897         while ((file = poptGetArg(pc))) {
 898                 if (!recursive) {
 899                         ret = smb_download_file(file, "", recursive, resume,
 900                                                 true, opt.outputfile);
 901                 } else {
 902                         ret = smb_download_dir(file, "", resume);
 903                 }
 904         }
 905
 906         TALLOC_FREE(frame);
 907         if (ret) {
 908                 clean_exit();
 909         }
 910         return ret?0:1;
 911 }