libopkg/opkg.c

   1 /* opkg.c - the opkg  package management system
   2
   3    Thomas Wood <thomas@openedhand.com>
   4
   5    Copyright (C) 2008 OpenMoko Inc
   6
   7    This program is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU General Public License as
   9    published by the Free Software Foundation; either version 2, or (at
  10    your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful, but
  13    WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    General Public License for more details.
  16  */
  17
  18 #include <stdio.h>
  19 #include <unistd.h>
  20 #include <fnmatch.h>
  21
  22 #include "opkg.h"
  23 #include "opkg_conf.h"
  24
  25 #include "opkg_install.h"
  26 #include "opkg_configure.h"
  27 #include "opkg_download.h"
  28 #include "opkg_remove.h"
  29 #include "opkg_upgrade.h"
  30
  31 #include "sprintf_alloc.h"
  32 #include "file_util.h"
  33
  34 #include <libbb/libbb.h>
  35
  36 #define opkg_assert(expr) if (!(expr)) { \
  37     printf ("opkg: file %s: line %d (%s): Assertation '%s' failed",\
  38             __FILE__, __LINE__, __PRETTY_FUNCTION__, # expr); abort (); }
  39
  40 #define progress(d, p) d.percentage = p; if (progress_callback) progress_callback (&d, user_data);
  41
  42 /** Private Functions ***/
  43
  44 static int opkg_configure_packages(char *pkg_name)
  45 {
  46         pkg_vec_t *all;
  47         int i;
  48         pkg_t *pkg;
  49         int r, err = 0;
  50
  51         all = pkg_vec_alloc();
  52         pkg_hash_fetch_available(all);
  53
  54         for (i = 0; i < all->len; i++) {
  55                 pkg = all->pkgs[i];
  56
  57                 if (pkg_name && fnmatch(pkg_name, pkg->name, 0))
  58                         continue;
  59
  60                 if (pkg->state_status == SS_UNPACKED) {
  61                         r = opkg_configure(pkg);
  62                         if (r == 0) {
  63                                 pkg->state_status = SS_INSTALLED;
  64                                 pkg->parent->state_status = SS_INSTALLED;
  65                                 pkg->state_flag &= ~SF_PREFER;
  66                         } else {
  67                                 if (!err)
  68                                         err = r;
  69                         }
  70                 }
  71         }
  72
  73         pkg_vec_free(all);
  74         return err;
  75 }
  76
  77 struct _curl_cb_data {
  78         opkg_progress_callback_t cb;
  79         opkg_progress_data_t *progress_data;
  80         void *user_data;
  81         int start_range;
  82         int finish_range;
  83 };
  84
  85 int curl_progress_cb(struct _curl_cb_data *cb_data, double t,   /* dltotal */
  86                      double d,  /* dlnow */
  87                      double ultotal, double ulnow)
  88 {
  89         int p = (t) ? d * 100 / t : 0;
  90         static int prev = -1;
  91         int progress = 0;
  92
  93         /* prevent the same value being sent twice (can occur due to rounding) */
  94         if (p == prev)
  95                 return 0;
  96         prev = p;
  97
  98         if (t < 1)
  99                 return 0;
 100
 101         progress = cb_data->start_range +
 102             (d / t * ((cb_data->finish_range - cb_data->start_range)));
 103         cb_data->progress_data->percentage = progress;
 104
 105         (cb_data->cb) (cb_data->progress_data, cb_data->user_data);
 106
 107         return 0;
 108 }
 109
 110 static struct opkg_conf saved_conf;
 111 /*** Public API ***/
 112
 113 int opkg_new()
 114 {
 115         saved_conf = *conf;
 116
 117         if (opkg_conf_init())
 118                 goto err0;
 119
 120         if (opkg_conf_load())
 121                 goto err0;
 122
 123         if (pkg_hash_load_feeds(0))
 124                 goto err1;
 125
 126         if (pkg_hash_load_status_files())
 127                 goto err1;
 128
 129         return 0;
 130
 131 err1:
 132         pkg_hash_deinit();
 133 err0:
 134         opkg_conf_deinit();
 135         return -1;
 136 }
 137
 138 void opkg_free(void)
 139 {
 140         opkg_conf_deinit();
 141 }
 142
 143 int opkg_re_read_config_files(void)
 144 {
 145         opkg_free();
 146         *conf = saved_conf;
 147         return opkg_new();
 148 }
 149
 150 void opkg_get_option(char *option, void **value)
 151 {
 152         int i = 0;
 153         extern opkg_option_t options[];
 154
 155         /* look up the option
 156          * TODO: this would be much better as a hash table
 157          */
 158         while (options[i].name) {
 159                 if (strcmp(options[i].name, option) != 0) {
 160                         i++;
 161                         continue;
 162                 }
 163         }
 164
 165         /* get the option */
 166         switch (options[i].type) {
 167         case OPKG_OPT_TYPE_BOOL:
 168                 *((int *)value) = *((int *)options[i].value);
 169                 return;
 170
 171         case OPKG_OPT_TYPE_INT:
 172                 *((int *)value) = *((int *)options[i].value);
 173                 return;
 174
 175         case OPKG_OPT_TYPE_STRING:
 176                 *((char **)value) = xstrdup(options[i].value);
 177                 return;
 178         }
 179
 180 }
 181
 182 void opkg_set_option(char *option, void *value)
 183 {
 184         int i = 0, found = 0;
 185         extern opkg_option_t options[];
 186
 187         opkg_assert(option != NULL);
 188         opkg_assert(value != NULL);
 189
 190         /* look up the option
 191          * TODO: this would be much better as a hash table
 192          */
 193         while (options[i].name) {
 194                 if (strcmp(options[i].name, option) == 0) {
 195                         found = 1;
 196                         break;
 197                 }
 198                 i++;
 199         }
 200
 201         if (!found) {
 202                 opkg_msg(ERROR, "Invalid option: %s\n", option);
 203                 return;
 204         }
 205
 206         /* set the option */
 207         switch (options[i].type) {
 208         case OPKG_OPT_TYPE_BOOL:
 209                 if (*((int *)value) == 0)
 210                         *((int *)options[i].value) = 0;
 211                 else
 212                         *((int *)options[i].value) = 1;
 213                 return;
 214
 215         case OPKG_OPT_TYPE_INT:
 216                 *((int *)options[i].value) = *((int *)value);
 217                 return;
 218
 219         case OPKG_OPT_TYPE_STRING:
 220                 *((char **)options[i].value) = xstrdup(value);
 221                 return;
 222         }
 223
 224 }
 225
 226 /**
 227  * @brief libopkg API: Install package
 228  * @param package_name The name of package in which is going to install
 229  * @param progress_callback The callback function that report the status to caller.
 230  */
 231 int
 232 opkg_install_package(const char *package_name,
 233                      opkg_progress_callback_t progress_callback,
 234                      void *user_data)
 235 {
 236         int err;
 237         char *stripped_filename, *local_filename;
 238         opkg_progress_data_t pdata;
 239         pkg_t *old, *new;
 240         pkg_vec_t *deps, *all;
 241         int i;
 242         char **unresolved = NULL;
 243         const char *filename;
 244
 245         opkg_assert(package_name != NULL);
 246
 247         /* ... */
 248         pkg_info_preinstall_check();
 249
 250         /* check to ensure package is not already installed */
 251         old = pkg_hash_fetch_installed_by_name(package_name);
 252         if (old) {
 253                 opkg_msg(ERROR, "Package %s is already installed\n",
 254                          package_name);
 255                 return -1;
 256         }
 257
 258         new = pkg_hash_fetch_best_installation_candidate_by_name(package_name);
 259         if (!new) {
 260                 opkg_msg(ERROR, "Couldn't find package %s\n", package_name);
 261                 return -1;
 262         }
 263
 264         new->state_flag |= SF_USER;
 265
 266         pdata.action = -1;
 267         pdata.pkg = new;
 268
 269         progress(pdata, 0);
 270
 271         /* find dependancies and download them */
 272         deps = pkg_vec_alloc();
 273         /* this function does not return the original package, so we insert it later */
 274         pkg_hash_fetch_unsatisfied_dependencies(new, deps, &unresolved);
 275         if (unresolved) {
 276                 char **tmp = unresolved;
 277                 opkg_msg(ERROR, "Couldn't satisfy the following dependencies"
 278                          " for %s:\n", package_name);
 279                 while (*tmp) {
 280                         opkg_msg(ERROR, "\t%s", *tmp);
 281                         free(*tmp);
 282                         tmp++;
 283                 }
 284                 free(unresolved);
 285                 pkg_vec_free(deps);
 286                 opkg_message(ERROR, "\n");
 287                 return -1;
 288         }
 289
 290         /* insert the package we are installing so that we download it */
 291         pkg_vec_insert(deps, new);
 292
 293         /* download package and dependencies */
 294         for (i = 0; i < deps->len; i++) {
 295                 pkg_t *pkg;
 296                 struct _curl_cb_data cb_data;
 297                 char *url;
 298
 299                 pkg = deps->pkgs[i];
 300                 if (pkg_get_string(pkg, PKG_LOCAL_FILENAME))
 301                         continue;
 302
 303                 pdata.pkg = pkg;
 304                 pdata.action = OPKG_DOWNLOAD;
 305
 306                 if (pkg->src == NULL) {
 307                         opkg_msg(ERROR, "Package %s not available from any "
 308                                  "configured src\n", package_name);
 309                         return -1;
 310                 }
 311
 312                 filename = pkg_get_string(pkg, PKG_FILENAME);
 313
 314                 sprintf_alloc(&url, "%s/%s", pkg->src->value, filename);
 315
 316                 /* Get the filename part, without any directory */
 317                 stripped_filename = strrchr(filename, '/');
 318                 if (!stripped_filename)
 319                         stripped_filename = (char *)filename;
 320
 321                 sprintf_alloc(&local_filename, "%s/%s", conf->tmp_dir,
 322                               stripped_filename);
 323
 324                 pkg_set_string(pkg, PKG_LOCAL_FILENAME, local_filename);
 325
 326                 cb_data.cb = progress_callback;
 327                 cb_data.progress_data = &pdata;
 328                 cb_data.user_data = user_data;
 329                 /* 75% of "install" progress is for downloading */
 330                 cb_data.start_range = 75 * i / deps->len;
 331                 cb_data.finish_range = 75 * (i + 1) / deps->len;
 332
 333                 err = opkg_download(url, local_filename,
 334                                     (curl_progress_func) curl_progress_cb,
 335                                     &cb_data, 0);
 336                 free(url);
 337
 338                 if (err) {
 339                         pkg_vec_free(deps);
 340                         return -1;
 341                 }
 342
 343         }
 344         pkg_vec_free(deps);
 345
 346         /* clear depenacy checked marks, left by pkg_hash_fetch_unsatisfied_dependencies */
 347         all = pkg_vec_alloc();
 348         pkg_hash_fetch_available(all);
 349         for (i = 0; i < all->len; i++) {
 350                 all->pkgs[i]->parent->dependencies_checked = 0;
 351         }
 352         pkg_vec_free(all);
 353
 354         /* 75% of "install" progress is for downloading */
 355         pdata.pkg = new;
 356         pdata.action = OPKG_INSTALL;
 357         progress(pdata, 75);
 358
 359         /* unpack the package */
 360         err = opkg_install_pkg(new, 0);
 361
 362         if (err) {
 363                 return -1;
 364         }
 365
 366         progress(pdata, 75);
 367
 368         /* run configure scripts, etc. */
 369         err = opkg_configure_packages(NULL);
 370         if (err) {
 371                 return -1;
 372         }
 373
 374         /* write out status files and file lists */
 375         opkg_conf_write_status_files();
 376         pkg_write_changed_filelists();
 377
 378         progress(pdata, 100);
 379         return 0;
 380 }
 381
 382 int
 383 opkg_remove_package(const char *package_name,
 384                     opkg_progress_callback_t progress_callback, void *user_data)
 385 {
 386         int err;
 387         pkg_t *pkg = NULL;
 388         pkg_t *pkg_to_remove;
 389         opkg_progress_data_t pdata;
 390
 391         opkg_assert(package_name != NULL);
 392
 393         pkg_info_preinstall_check();
 394
 395         pkg = pkg_hash_fetch_installed_by_name(package_name);
 396
 397         if (pkg == NULL || pkg->state_status == SS_NOT_INSTALLED) {
 398                 opkg_msg(ERROR, "Package %s not installed\n", package_name);
 399                 return -1;
 400         }
 401
 402         pdata.action = OPKG_REMOVE;
 403         pdata.pkg = pkg;
 404         progress(pdata, 0);
 405
 406         if (conf->restrict_to_default_dest) {
 407                 pkg_to_remove = pkg_hash_fetch_installed_by_name_dest(pkg->name,
 408                                                                       conf->
 409                                                                       default_dest);
 410         } else {
 411                 pkg_to_remove = pkg_hash_fetch_installed_by_name(pkg->name);
 412         }
 413
 414         progress(pdata, 75);
 415
 416         err = opkg_remove_pkg(pkg_to_remove, 0);
 417
 418         /* write out status files and file lists */
 419         opkg_conf_write_status_files();
 420         pkg_write_changed_filelists();
 421
 422         progress(pdata, 100);
 423         return (err) ? -1 : 0;
 424 }
 425
 426 int
 427 opkg_upgrade_package(const char *package_name,
 428                      opkg_progress_callback_t progress_callback,
 429                      void *user_data)
 430 {
 431         int err;
 432         pkg_t *pkg;
 433         opkg_progress_data_t pdata;
 434
 435         opkg_assert(package_name != NULL);
 436
 437         pkg_info_preinstall_check();
 438
 439         if (conf->restrict_to_default_dest) {
 440                 pkg = pkg_hash_fetch_installed_by_name_dest(package_name,
 441                                                             conf->default_dest);
 442         } else {
 443                 pkg = pkg_hash_fetch_installed_by_name(package_name);
 444         }
 445
 446         if (!pkg) {
 447                 opkg_msg(ERROR, "Package %s not installed\n", package_name);
 448                 return -1;
 449         }
 450
 451         pdata.action = OPKG_INSTALL;
 452         pdata.pkg = pkg;
 453         progress(pdata, 0);
 454
 455         err = opkg_upgrade_pkg(pkg);
 456         if (err) {
 457                 return -1;
 458         }
 459         progress(pdata, 75);
 460
 461         err = opkg_configure_packages(NULL);
 462         if (err) {
 463                 return -1;
 464         }
 465
 466         /* write out status files and file lists */
 467         opkg_conf_write_status_files();
 468         pkg_write_changed_filelists();
 469
 470         progress(pdata, 100);
 471         return 0;
 472 }
 473
 474 int
 475 opkg_upgrade_all(opkg_progress_callback_t progress_callback, void *user_data)
 476 {
 477         pkg_vec_t *installed;
 478         int err = 0;
 479         int i;
 480         pkg_t *pkg;
 481         opkg_progress_data_t pdata;
 482
 483         pdata.action = OPKG_INSTALL;
 484         pdata.pkg = NULL;
 485
 486         progress(pdata, 0);
 487
 488         installed = pkg_vec_alloc();
 489         pkg_info_preinstall_check();
 490
 491         pkg_hash_fetch_all_installed(installed);
 492         for (i = 0; i < installed->len; i++) {
 493                 pkg = installed->pkgs[i];
 494
 495                 pdata.pkg = pkg;
 496                 progress(pdata, 99 * i / installed->len);
 497
 498                 err += opkg_upgrade_pkg(pkg);
 499         }
 500         pkg_vec_free(installed);
 501
 502         if (err)
 503                 return 1;
 504
 505         err = opkg_configure_packages(NULL);
 506         if (err)
 507                 return 1;
 508
 509         /* write out status files and file lists */
 510         opkg_conf_write_status_files();
 511         pkg_write_changed_filelists();
 512
 513         pdata.pkg = NULL;
 514         progress(pdata, 100);
 515         return 0;
 516 }
 517
 518 int
 519 opkg_update_package_lists(opkg_progress_callback_t progress_callback,
 520                           void *user_data)
 521 {
 522         char *tmp;
 523         int err, result = 0;
 524         char *lists_dir;
 525         pkg_src_list_elt_t *iter;
 526         pkg_src_t *src;
 527         int sources_list_count, sources_done;
 528         opkg_progress_data_t pdata;
 529
 530         pdata.action = OPKG_DOWNLOAD;
 531         pdata.pkg = NULL;
 532         progress(pdata, 0);
 533
 534         sprintf_alloc(&lists_dir, "%s", (conf->restrict_to_default_dest)
 535                       ? conf->default_dest->lists_dir : conf->lists_dir);
 536
 537         if (!file_is_dir(lists_dir)) {
 538                 if (file_exists(lists_dir)) {
 539                         opkg_msg(ERROR, "%s is not a directory\n", lists_dir);
 540                         free(lists_dir);
 541                         return 1;
 542                 }
 543
 544                 err = file_mkdir_hier(lists_dir, 0755);
 545                 if (err) {
 546                         opkg_msg(ERROR, "Couldn't create lists_dir %s\n",
 547                                  lists_dir);
 548                         free(lists_dir);
 549                         return 1;
 550                 }
 551         }
 552
 553         sprintf_alloc(&tmp, "%s/update-XXXXXX", conf->tmp_dir);
 554         if (mkdtemp(tmp) == NULL) {
 555                 opkg_perror(ERROR, "Coundn't create temporary directory %s",
 556                             tmp);
 557                 free(lists_dir);
 558                 free(tmp);
 559                 return 1;
 560         }
 561
 562         /* count the number of sources so we can give some progress updates */
 563         sources_list_count = 0;
 564         sources_done = 0;
 565         list_for_each_entry(iter, &conf->pkg_src_list.head, node) {
 566                 sources_list_count++;
 567         }
 568
 569         list_for_each_entry(iter, &conf->pkg_src_list.head, node) {
 570                 char *url, *list_file_name = NULL;
 571
 572                 src = (pkg_src_t *) iter->data;
 573
 574                 if (src->extra_data)    /* debian style? */
 575                         sprintf_alloc(&url, "%s/%s/%s", src->value,
 576                                       src->extra_data,
 577                                       src->gzip ? "Packages.gz" : "Packages");
 578                 else
 579                         sprintf_alloc(&url, "%s/%s", src->value,
 580                                       src->gzip ? "Packages.gz" : "Packages");
 581
 582                 sprintf_alloc(&list_file_name, "%s/%s", lists_dir, src->name);
 583
 584                 if (opkg_download(url, list_file_name, NULL, NULL, 0)) {
 585                         opkg_msg(ERROR, "Couldn't retrieve %s\n", url);
 586                         result = -1;
 587                 }
 588                 free(url);
 589
 590 #if defined(HAVE_USIGN)
 591                 if (conf->check_signature) {
 592                         char *sig_file_name;
 593                         /* download detached signitures to verify the package lists */
 594                         /* get the url for the sig file */
 595                         if (src->extra_data)    /* debian style? */
 596                                 sprintf_alloc(&url, "%s/%s/%s", src->value,
 597                                               src->extra_data, "Packages.sig");
 598                         else
 599                                 sprintf_alloc(&url, "%s/%s", src->value,
 600                                               "Packages.sig");
 601
 602                         /* create filename for signature */
 603                         sprintf_alloc(&sig_file_name, "%s/%s.sig", lists_dir,
 604                                       src->name);
 605
 606                         /* make sure there is no existing signature file */
 607                         unlink(sig_file_name);
 608
 609                         err = opkg_download(url, sig_file_name, NULL, NULL, 0);
 610                         if (err) {
 611                                 opkg_msg(ERROR, "Couldn't retrieve %s\n", url);
 612                         } else {
 613                                 int err;
 614                                 err = opkg_verify_file(list_file_name,
 615                                                        sig_file_name);
 616                                 if (err == 0) {
 617                                         opkg_msg(INFO, "Signature check "
 618                                                  "passed for %s",
 619                                                  list_file_name);
 620                                 } else {
 621                                         opkg_msg(ERROR, "Signature check "
 622                                                  "failed for %s",
 623                                                  list_file_name);
 624                                 }
 625                         }
 626                         free(sig_file_name);
 627                         free(url);
 628                 }
 629 #else
 630                 opkg_msg(INFO, "Signature check skipped for %s as GPG support"
 631                          " has not been enabled in this build\n",
 632                          list_file_name);
 633 #endif
 634                 free(list_file_name);
 635
 636                 sources_done++;
 637                 progress(pdata, 100 * sources_done / sources_list_count);
 638         }
 639
 640         rmdir(tmp);
 641         free(tmp);
 642         free(lists_dir);
 643
 644         /* Now re-read the package lists to update package hash tables. */
 645         opkg_re_read_config_files();
 646
 647         return result;
 648 }
 649
 650 static int pkg_compare_names_and_version(const void *a0, const void *b0)
 651 {
 652         const pkg_t *a = *(const pkg_t **)a0;
 653         const pkg_t *b = *(const pkg_t **)b0;
 654         int ret;
 655
 656         ret = strcmp(a->name, b->name);
 657
 658         if (ret == 0)
 659                 ret = pkg_compare_versions(a, b);
 660
 661         return ret;
 662 }
 663
 664 int opkg_list_packages(opkg_package_callback_t callback, void *user_data)
 665 {
 666         pkg_vec_t *all;
 667         int i;
 668
 669         opkg_assert(callback);
 670
 671         all = pkg_vec_alloc();
 672         pkg_hash_fetch_available(all);
 673
 674         pkg_vec_sort(all, pkg_compare_names_and_version);
 675
 676         for (i = 0; i < all->len; i++) {
 677                 pkg_t *pkg;
 678
 679                 pkg = all->pkgs[i];
 680
 681                 callback(pkg, user_data);
 682         }
 683
 684         pkg_vec_free(all);
 685
 686         return 0;
 687 }
 688
 689 int
 690 opkg_list_upgradable_packages(opkg_package_callback_t callback, void *user_data)
 691 {
 692         struct active_list *head;
 693         struct active_list *node;
 694         pkg_t *old = NULL, *new = NULL;
 695
 696         opkg_assert(callback);
 697
 698         /* ensure all data is valid */
 699         pkg_info_preinstall_check();
 700
 701         head = prepare_upgrade_list();
 702         for (node = active_list_next(head, head); node;
 703              node = active_list_next(head, node)) {
 704                 old = node->pkg;
 705                 new =
 706                     pkg_hash_fetch_best_installation_candidate_by_name(old->
 707                                                                        name);
 708                 if (new == NULL)
 709                         continue;
 710                 callback(new, user_data);
 711         }
 712         active_list_head_delete(head);
 713         return 0;
 714 }
 715
 716 pkg_t *opkg_find_package(const char *name, const char *ver, const char *arch,
 717                          const char *repo)
 718 {
 719         int pkg_found = 0;
 720         pkg_t *pkg = NULL;
 721         pkg_vec_t *all;
 722         int i;
 723 #define sstrcmp(x,y) (x && y) ? strcmp (x, y) : 0
 724
 725         all = pkg_vec_alloc();
 726         pkg_hash_fetch_available(all);
 727         for (i = 0; i < all->len; i++) {
 728                 char *pkgv;
 729
 730                 pkg = all->pkgs[i];
 731
 732                 /* check name */
 733                 if (sstrcmp(pkg->name, name))
 734                         continue;
 735
 736                 /* check version */
 737                 pkgv = pkg_version_str_alloc(pkg);
 738                 if (sstrcmp(pkgv, ver)) {
 739                         free(pkgv);
 740                         continue;
 741                 }
 742                 free(pkgv);
 743
 744                 /* check architecture */
 745                 if (arch) {
 746                         if (sstrcmp(pkg_get_architecture(pkg), arch))
 747                                 continue;
 748                 }
 749
 750                 /* check repository */
 751                 if (repo) {
 752                         if (sstrcmp(pkg->src->name, repo))
 753                                 continue;
 754                 }
 755
 756                 /* match found */
 757                 pkg_found = 1;
 758                 break;
 759         }
 760
 761         pkg_vec_free(all);
 762
 763         return pkg_found ? pkg : NULL;
 764 }
 765
 766 /**
 767  * @brief Check the accessibility of repositories.
 768  * @return return how many repositories cannot access. 0 means all okay.
 769  */
 770 int opkg_repository_accessibility_check(void)
 771 {
 772         pkg_src_list_elt_t *iter;
 773         str_list_elt_t *iter1;
 774         str_list_t *src;
 775         int repositories = 0;
 776         int ret = 0;
 777         char *repo_ptr;
 778         char *stmp;
 779         char *host, *end;
 780
 781         src = str_list_alloc();
 782
 783         list_for_each_entry(iter, &conf->pkg_src_list.head, node) {
 784                 host = strstr(((pkg_src_t *) iter->data)->value, "://") + 3;
 785                 end = index(host, '/');
 786                 if (strstr(((pkg_src_t *) iter->data)->value, "://") && end)
 787                         stmp = xstrndup(((pkg_src_t *) iter->data)->value,
 788                                         end -
 789                                         ((pkg_src_t *) iter->data)->value);
 790                 else
 791                         stmp = xstrdup(((pkg_src_t *) iter->data)->value);
 792
 793                 for (iter1 = str_list_first(src); iter1;
 794                      iter1 = str_list_next(src, iter1)) {
 795                         if (strstr(iter1->data, stmp))
 796                                 break;
 797                 }
 798                 if (iter1)
 799                         continue;
 800
 801                 sprintf_alloc(&repo_ptr, "%s/index.html", stmp);
 802                 free(stmp);
 803
 804                 str_list_append(src, repo_ptr);
 805                 free(repo_ptr);
 806                 repositories++;
 807         }
 808
 809         while (repositories > 0) {
 810                 iter1 = str_list_pop(src);
 811                 repositories--;
 812
 813                 if (opkg_download(iter1->data, "/dev/null", NULL, NULL, 0))
 814                         ret++;
 815                 str_list_elt_deinit(iter1);
 816         }
 817
 818         free(src);
 819
 820         return ret;
 821 }