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 "config.h"
  19
  20 #include <stdio.h>
  21 #include <unistd.h>
  22 #include <fnmatch.h>
  23
  24 #include "opkg.h"
  25 #include "opkg_conf.h"
  26
  27 #include "opkg_install.h"
  28 #include "opkg_configure.h"
  29 #include "opkg_download.h"
  30 #include "opkg_remove.h"
  31 #include "opkg_upgrade.h"
  32
  33 #include "sprintf_alloc.h"
  34 #include "file_util.h"
  35
  36 #include <libbb/libbb.h>
  37
  38 #define opkg_assert(expr) if (!(expr)) { \
  39     printf ("opkg: file %s: line %d (%s): Assertation '%s' failed",\
  40             __FILE__, __LINE__, __PRETTY_FUNCTION__, # expr); abort (); }
  41
  42 #define progress(d, p) d.percentage = p; if (progress_callback) progress_callback (&d, user_data);
  43
  44 /** Private Functions ***/
  45
  46 static int opkg_configure_packages(char *pkg_name)
  47 {
  48         pkg_vec_t *all;
  49         int i;
  50         pkg_t *pkg;
  51         int r, err = 0;
  52
  53         all = pkg_vec_alloc();
  54         pkg_hash_fetch_available(all);
  55
  56         for (i = 0; i < all->len; i++) {
  57                 pkg = all->pkgs[i];
  58
  59                 if (pkg_name && fnmatch(pkg_name, pkg->name, 0))
  60                         continue;
  61
  62                 if (pkg->state_status == SS_UNPACKED) {
  63                         r = opkg_configure(pkg);
  64                         if (r == 0) {
  65                                 pkg->state_status = SS_INSTALLED;
  66                                 pkg->parent->state_status = SS_INSTALLED;
  67                                 pkg->state_flag &= ~SF_PREFER;
  68                         } else {
  69                                 if (!err)
  70                                         err = r;
  71                         }
  72                 }
  73         }
  74
  75         pkg_vec_free(all);
  76         return err;
  77 }
  78
  79 struct _curl_cb_data {
  80         opkg_progress_callback_t cb;
  81         opkg_progress_data_t *progress_data;
  82         void *user_data;
  83         int start_range;
  84         int finish_range;
  85 };
  86
  87 int curl_progress_cb(struct _curl_cb_data *cb_data, double t,   /* dltotal */
  88                      double d,  /* dlnow */
  89                      double ultotal, double ulnow)
  90 {
  91         int p = (t) ? d * 100 / t : 0;
  92         static int prev = -1;
  93         int progress = 0;
  94
  95         /* prevent the same value being sent twice (can occur due to rounding) */
  96         if (p == prev)
  97                 return 0;
  98         prev = p;
  99
 100         if (t < 1)
 101                 return 0;
 102
 103         progress = cb_data->start_range +
 104             (d / t * ((cb_data->finish_range - cb_data->start_range)));
 105         cb_data->progress_data->percentage = progress;
 106
 107         (cb_data->cb) (cb_data->progress_data, cb_data->user_data);
 108
 109         return 0;
 110 }
 111
 112 static struct opkg_conf saved_conf;
 113 /*** Public API ***/
 114
 115 int opkg_new()
 116 {
 117         saved_conf = *conf;
 118
 119         if (opkg_conf_init())
 120                 goto err0;
 121
 122         if (opkg_conf_load())
 123                 goto err0;
 124
 125         if (pkg_hash_load_feeds())
 126                 goto err1;
 127
 128         if (pkg_hash_load_status_files())
 129                 goto err1;
 130
 131         return 0;
 132
 133 err1:
 134         pkg_hash_deinit();
 135 err0:
 136         opkg_conf_deinit();
 137         return -1;
 138 }
 139
 140 void opkg_free(void)
 141 {
 142 #ifdef HAVE_CURL
 143         opkg_curl_cleanup();
 144 #endif
 145         opkg_conf_deinit();
 146 }
 147
 148 int opkg_re_read_config_files(void)
 149 {
 150         opkg_free();
 151         *conf = saved_conf;
 152         return opkg_new();
 153 }
 154
 155 void opkg_get_option(char *option, void **value)
 156 {
 157         int i = 0;
 158         extern opkg_option_t options[];
 159
 160         /* look up the option
 161          * TODO: this would be much better as a hash table
 162          */
 163         while (options[i].name) {
 164                 if (strcmp(options[i].name, option) != 0) {
 165                         i++;
 166                         continue;
 167                 }
 168         }
 169
 170         /* get the option */
 171         switch (options[i].type) {
 172         case OPKG_OPT_TYPE_BOOL:
 173                 *((int *)value) = *((int *)options[i].value);
 174                 return;
 175
 176         case OPKG_OPT_TYPE_INT:
 177                 *((int *)value) = *((int *)options[i].value);
 178                 return;
 179
 180         case OPKG_OPT_TYPE_STRING:
 181                 *((char **)value) = xstrdup(options[i].value);
 182                 return;
 183         }
 184
 185 }
 186
 187 void opkg_set_option(char *option, void *value)
 188 {
 189         int i = 0, found = 0;
 190         extern opkg_option_t options[];
 191
 192         opkg_assert(option != NULL);
 193         opkg_assert(value != NULL);
 194
 195         /* look up the option
 196          * TODO: this would be much better as a hash table
 197          */
 198         while (options[i].name) {
 199                 if (strcmp(options[i].name, option) == 0) {
 200                         found = 1;
 201                         break;
 202                 }
 203                 i++;
 204         }
 205
 206         if (!found) {
 207                 opkg_msg(ERROR, "Invalid option: %s\n", option);
 208                 return;
 209         }
 210
 211         /* set the option */
 212         switch (options[i].type) {
 213         case OPKG_OPT_TYPE_BOOL:
 214                 if (*((int *)value) == 0)
 215                         *((int *)options[i].value) = 0;
 216                 else
 217                         *((int *)options[i].value) = 1;
 218                 return;
 219
 220         case OPKG_OPT_TYPE_INT:
 221                 *((int *)options[i].value) = *((int *)value);
 222                 return;
 223
 224         case OPKG_OPT_TYPE_STRING:
 225                 *((char **)options[i].value) = xstrdup(value);
 226                 return;
 227         }
 228
 229 }
 230
 231 /**
 232  * @brief libopkg API: Install package
 233  * @param package_name The name of package in which is going to install
 234  * @param progress_callback The callback function that report the status to caller.
 235  */
 236 int
 237 opkg_install_package(const char *package_name,
 238                      opkg_progress_callback_t progress_callback,
 239                      void *user_data)
 240 {
 241         int err;
 242         char *stripped_filename;
 243         opkg_progress_data_t pdata;
 244         pkg_t *old, *new;
 245         pkg_vec_t *deps, *all;
 246         int i, ndepends;
 247         char **unresolved = NULL;
 248
 249         opkg_assert(package_name != NULL);
 250
 251         /* ... */
 252         pkg_info_preinstall_check();
 253
 254         /* check to ensure package is not already installed */
 255         old = pkg_hash_fetch_installed_by_name(package_name);
 256         if (old) {
 257                 opkg_msg(ERROR, "Package %s is already installed\n",
 258                          package_name);
 259                 return -1;
 260         }
 261
 262         new = pkg_hash_fetch_best_installation_candidate_by_name(package_name);
 263         if (!new) {
 264                 opkg_msg(ERROR, "Couldn't find package %s\n", package_name);
 265                 return -1;
 266         }
 267
 268         new->state_flag |= SF_USER;
 269
 270         pdata.action = -1;
 271         pdata.pkg = new;
 272
 273         progress(pdata, 0);
 274
 275         /* find dependancies and download them */
 276         deps = pkg_vec_alloc();
 277         /* this function does not return the original package, so we insert it later */
 278         ndepends = pkg_hash_fetch_unsatisfied_dependencies(new, deps,
 279                                                            &unresolved);
 280         if (unresolved) {
 281                 char **tmp = unresolved;
 282                 opkg_msg(ERROR, "Couldn't satisfy the following dependencies"
 283                          " for %s:\n", package_name);
 284                 while (*tmp) {
 285                         opkg_msg(ERROR, "\t%s", *tmp);
 286                         free(*tmp);
 287                         tmp++;
 288                 }
 289                 free(unresolved);
 290                 pkg_vec_free(deps);
 291                 opkg_message(ERROR, "\n");
 292                 return -1;
 293         }
 294
 295         /* insert the package we are installing so that we download it */
 296         pkg_vec_insert(deps, new);
 297
 298         /* download package and dependencies */
 299         for (i = 0; i < deps->len; i++) {
 300                 pkg_t *pkg;
 301                 struct _curl_cb_data cb_data;
 302                 char *url;
 303
 304                 pkg = deps->pkgs[i];
 305                 if (pkg->local_filename)
 306                         continue;
 307
 308                 pdata.pkg = pkg;
 309                 pdata.action = OPKG_DOWNLOAD;
 310
 311                 if (pkg->src == NULL) {
 312                         opkg_msg(ERROR, "Package %s not available from any "
 313                                  "configured src\n", package_name);
 314                         return -1;
 315                 }
 316
 317                 sprintf_alloc(&url, "%s/%s", pkg->src->value, pkg->filename);
 318
 319                 /* Get the filename part, without any directory */
 320                 stripped_filename = strrchr(pkg->filename, '/');
 321                 if (!stripped_filename)
 322                         stripped_filename = pkg->filename;
 323
 324                 sprintf_alloc(&pkg->local_filename, "%s/%s", conf->tmp_dir,
 325                               stripped_filename);
 326
 327                 cb_data.cb = progress_callback;
 328                 cb_data.progress_data = &pdata;
 329                 cb_data.user_data = user_data;
 330                 /* 75% of "install" progress is for downloading */
 331                 cb_data.start_range = 75 * i / deps->len;
 332                 cb_data.finish_range = 75 * (i + 1) / deps->len;
 333
 334                 err = opkg_download(url, pkg->local_filename,
 335                                     (curl_progress_func) curl_progress_cb,
 336                                     &cb_data, 0);
 337                 free(url);
 338
 339                 if (err) {
 340                         pkg_vec_free(deps);
 341                         return -1;
 342                 }
 343
 344         }
 345         pkg_vec_free(deps);
 346
 347         /* clear depenacy checked marks, left by pkg_hash_fetch_unsatisfied_dependencies */
 348         all = pkg_vec_alloc();
 349         pkg_hash_fetch_available(all);
 350         for (i = 0; i < all->len; i++) {
 351                 all->pkgs[i]->parent->dependencies_checked = 0;
 352         }
 353         pkg_vec_free(all);
 354
 355         /* 75% of "install" progress is for downloading */
 356         pdata.pkg = new;
 357         pdata.action = OPKG_INSTALL;
 358         progress(pdata, 75);
 359
 360         /* unpack the package */
 361         err = opkg_install_pkg(new, 0);
 362
 363         if (err) {
 364                 return -1;
 365         }
 366
 367         progress(pdata, 75);
 368
 369         /* run configure scripts, etc. */
 370         err = opkg_configure_packages(NULL);
 371         if (err) {
 372                 return -1;
 373         }
 374
 375         /* write out status files and file lists */
 376         opkg_conf_write_status_files();
 377         pkg_write_changed_filelists();
 378
 379         progress(pdata, 100);
 380         return 0;
 381 }
 382
 383 int
 384 opkg_remove_package(const char *package_name,
 385                     opkg_progress_callback_t progress_callback, void *user_data)
 386 {
 387         int err;
 388         pkg_t *pkg = NULL;
 389         pkg_t *pkg_to_remove;
 390         opkg_progress_data_t pdata;
 391
 392         opkg_assert(package_name != NULL);
 393
 394         pkg_info_preinstall_check();
 395
 396         pkg = pkg_hash_fetch_installed_by_name(package_name);
 397
 398         if (pkg == NULL || pkg->state_status == SS_NOT_INSTALLED) {
 399                 opkg_msg(ERROR, "Package %s not installed\n", package_name);
 400                 return -1;
 401         }
 402
 403         pdata.action = OPKG_REMOVE;
 404         pdata.pkg = pkg;
 405         progress(pdata, 0);
 406
 407         if (conf->restrict_to_default_dest) {
 408                 pkg_to_remove = pkg_hash_fetch_installed_by_name_dest(pkg->name,
 409                                                                       conf->
 410                                                                       default_dest);
 411         } else {
 412                 pkg_to_remove = pkg_hash_fetch_installed_by_name(pkg->name);
 413         }
 414
 415         progress(pdata, 75);
 416
 417         err = opkg_remove_pkg(pkg_to_remove, 0);
 418
 419         /* write out status files and file lists */
 420         opkg_conf_write_status_files();
 421         pkg_write_changed_filelists();
 422
 423         progress(pdata, 100);
 424         return (err) ? -1 : 0;
 425 }
 426
 427 int
 428 opkg_upgrade_package(const char *package_name,
 429                      opkg_progress_callback_t progress_callback,
 430                      void *user_data)
 431 {
 432         int err;
 433         pkg_t *pkg;
 434         opkg_progress_data_t pdata;
 435
 436         opkg_assert(package_name != NULL);
 437
 438         pkg_info_preinstall_check();
 439
 440         if (conf->restrict_to_default_dest) {
 441                 pkg = pkg_hash_fetch_installed_by_name_dest(package_name,
 442                                                             conf->default_dest);
 443         } else {
 444                 pkg = pkg_hash_fetch_installed_by_name(package_name);
 445         }
 446
 447         if (!pkg) {
 448                 opkg_msg(ERROR, "Package %s not installed\n", package_name);
 449                 return -1;
 450         }
 451
 452         pdata.action = OPKG_INSTALL;
 453         pdata.pkg = pkg;
 454         progress(pdata, 0);
 455
 456         err = opkg_upgrade_pkg(pkg);
 457         if (err) {
 458                 return -1;
 459         }
 460         progress(pdata, 75);
 461
 462         err = opkg_configure_packages(NULL);
 463         if (err) {
 464                 return -1;
 465         }
 466
 467         /* write out status files and file lists */
 468         opkg_conf_write_status_files();
 469         pkg_write_changed_filelists();
 470
 471         progress(pdata, 100);
 472         return 0;
 473 }
 474
 475 int
 476 opkg_upgrade_all(opkg_progress_callback_t progress_callback, void *user_data)
 477 {
 478         pkg_vec_t *installed;
 479         int err = 0;
 480         int i;
 481         pkg_t *pkg;
 482         opkg_progress_data_t pdata;
 483
 484         pdata.action = OPKG_INSTALL;
 485         pdata.pkg = NULL;
 486
 487         progress(pdata, 0);
 488
 489         installed = pkg_vec_alloc();
 490         pkg_info_preinstall_check();
 491
 492         pkg_hash_fetch_all_installed(installed);
 493         for (i = 0; i < installed->len; i++) {
 494                 pkg = installed->pkgs[i];
 495
 496                 pdata.pkg = pkg;
 497                 progress(pdata, 99 * i / installed->len);
 498
 499                 err += opkg_upgrade_pkg(pkg);
 500         }
 501         pkg_vec_free(installed);
 502
 503         if (err)
 504                 return 1;
 505
 506         err = opkg_configure_packages(NULL);
 507         if (err)
 508                 return 1;
 509
 510         /* write out status files and file lists */
 511         opkg_conf_write_status_files();
 512         pkg_write_changed_filelists();
 513
 514         pdata.pkg = NULL;
 515         progress(pdata, 100);
 516         return 0;
 517 }
 518
 519 int
 520 opkg_update_package_lists(opkg_progress_callback_t progress_callback,
 521                           void *user_data)
 522 {
 523         char *tmp;
 524         int err, result = 0;
 525         char *lists_dir;
 526         pkg_src_list_elt_t *iter;
 527         pkg_src_t *src;
 528         int sources_list_count, sources_done;
 529         opkg_progress_data_t pdata;
 530
 531         pdata.action = OPKG_DOWNLOAD;
 532         pdata.pkg = NULL;
 533         progress(pdata, 0);
 534
 535         sprintf_alloc(&lists_dir, "%s", (conf->restrict_to_default_dest)
 536                       ? conf->default_dest->lists_dir : conf->lists_dir);
 537
 538         if (!file_is_dir(lists_dir)) {
 539                 if (file_exists(lists_dir)) {
 540                         opkg_msg(ERROR, "%s is not a directory\n", lists_dir);
 541                         free(lists_dir);
 542                         return 1;
 543                 }
 544
 545                 err = file_mkdir_hier(lists_dir, 0755);
 546                 if (err) {
 547                         opkg_msg(ERROR, "Couldn't create lists_dir %s\n",
 548                                  lists_dir);
 549                         free(lists_dir);
 550                         return 1;
 551                 }
 552         }
 553
 554         sprintf_alloc(&tmp, "%s/update-XXXXXX", conf->tmp_dir);
 555         if (mkdtemp(tmp) == NULL) {
 556                 opkg_perror(ERROR, "Coundn't create temporary directory %s",
 557                             tmp);
 558                 free(lists_dir);
 559                 free(tmp);
 560                 return 1;
 561         }
 562
 563         /* count the number of sources so we can give some progress updates */
 564         sources_list_count = 0;
 565         sources_done = 0;
 566         list_for_each_entry(iter, &conf->pkg_src_list.head, node) {
 567                 sources_list_count++;
 568         }
 569
 570         list_for_each_entry(iter, &conf->pkg_src_list.head, node) {
 571                 char *url, *list_file_name = NULL;
 572
 573                 src = (pkg_src_t *) iter->data;
 574
 575                 if (src->extra_data)    /* debian style? */
 576                         sprintf_alloc(&url, "%s/%s/%s", src->value,
 577                                       src->extra_data,
 578                                       src->gzip ? "Packages.gz" : "Packages");
 579                 else
 580                         sprintf_alloc(&url, "%s/%s", src->value,
 581                                       src->gzip ? "Packages.gz" : "Packages");
 582
 583                 sprintf_alloc(&list_file_name, "%s/%s", lists_dir, src->name);
 584
 585                 if (opkg_download(url, list_file_name, NULL, NULL, 0)) {
 586                         opkg_msg(ERROR, "Couldn't retrieve %s\n", url);
 587                         result = -1;
 588                 }
 589                 free(url);
 590
 591 #if defined(HAVE_GPGME) || defined(HAVE_OPENSSL) || defined(HAVE_USIGN)
 592                 if (conf->check_signature) {
 593                         char *sig_file_name;
 594                         /* download detached signitures to verify the package lists */
 595                         /* get the url for the sig file */
 596                         if (src->extra_data)    /* debian style? */
 597                                 sprintf_alloc(&url, "%s/%s/%s", src->value,
 598                                               src->extra_data, "Packages.sig");
 599                         else
 600                                 sprintf_alloc(&url, "%s/%s", src->value,
 601                                               "Packages.sig");
 602
 603                         /* create filename for signature */
 604                         sprintf_alloc(&sig_file_name, "%s/%s.sig", lists_dir,
 605                                       src->name);
 606
 607                         /* make sure there is no existing signature file */
 608                         unlink(sig_file_name);
 609
 610                         err = opkg_download(url, sig_file_name, NULL, NULL, 0);
 611                         if (err) {
 612                                 opkg_msg(ERROR, "Couldn't retrieve %s\n", url);
 613                         } else {
 614                                 int err;
 615                                 err = opkg_verify_file(list_file_name,
 616                                                        sig_file_name);
 617                                 if (err == 0) {
 618                                         opkg_msg(INFO, "Signature check "
 619                                                  "passed for %s",
 620                                                  list_file_name);
 621                                 } else {
 622                                         opkg_msg(ERROR, "Signature check "
 623                                                  "failed for %s",
 624                                                  list_file_name);
 625                                 }
 626                         }
 627                         free(sig_file_name);
 628                         free(url);
 629                 }
 630 #else
 631                 opkg_msg(INFO, "Signature check skipped for %s as GPG support"
 632                          " has not been enabled in this build\n",
 633                          list_file_name);
 634 #endif
 635                 free(list_file_name);
 636
 637                 sources_done++;
 638                 progress(pdata, 100 * sources_done / sources_list_count);
 639         }
 640
 641         rmdir(tmp);
 642         free(tmp);
 643         free(lists_dir);
 644
 645         /* Now re-read the package lists to update package hash tables. */
 646         opkg_re_read_config_files();
 647
 648         return result;
 649 }
 650
 651 static int pkg_compare_names_and_version(const void *a0, const void *b0)
 652 {
 653         const pkg_t *a = *(const pkg_t **)a0;
 654         const pkg_t *b = *(const pkg_t **)b0;
 655         int ret;
 656
 657         ret = strcmp(a->name, b->name);
 658
 659         if (ret == 0)
 660                 ret = pkg_compare_versions(a, b);
 661
 662         return ret;
 663 }
 664
 665 int opkg_list_packages(opkg_package_callback_t callback, void *user_data)
 666 {
 667         pkg_vec_t *all;
 668         int i;
 669
 670         opkg_assert(callback);
 671
 672         all = pkg_vec_alloc();
 673         pkg_hash_fetch_available(all);
 674
 675         pkg_vec_sort(all, pkg_compare_names_and_version);
 676
 677         for (i = 0; i < all->len; i++) {
 678                 pkg_t *pkg;
 679
 680                 pkg = all->pkgs[i];
 681
 682                 callback(pkg, user_data);
 683         }
 684
 685         pkg_vec_free(all);
 686
 687         return 0;
 688 }
 689
 690 int
 691 opkg_list_upgradable_packages(opkg_package_callback_t callback, void *user_data)
 692 {
 693         struct active_list *head;
 694         struct active_list *node;
 695         pkg_t *old = NULL, *new = NULL;
 696
 697         opkg_assert(callback);
 698
 699         /* ensure all data is valid */
 700         pkg_info_preinstall_check();
 701
 702         head = prepare_upgrade_list();
 703         for (node = active_list_next(head, head); node;
 704              node = active_list_next(head, node)) {
 705                 old = list_entry(node, pkg_t, list);
 706                 new =
 707                     pkg_hash_fetch_best_installation_candidate_by_name(old->
 708                                                                        name);
 709                 if (new == NULL)
 710                         continue;
 711                 callback(new, user_data);
 712         }
 713         active_list_head_delete(head);
 714         return 0;
 715 }
 716
 717 pkg_t *opkg_find_package(const char *name, const char *ver, const char *arch,
 718                          const char *repo)
 719 {
 720         int pkg_found = 0;
 721         pkg_t *pkg = NULL;
 722         pkg_vec_t *all;
 723         int i;
 724 #define sstrcmp(x,y) (x && y) ? strcmp (x, y) : 0
 725
 726         all = pkg_vec_alloc();
 727         pkg_hash_fetch_available(all);
 728         for (i = 0; i < all->len; i++) {
 729                 char *pkgv;
 730
 731                 pkg = all->pkgs[i];
 732
 733                 /* check name */
 734                 if (sstrcmp(pkg->name, name))
 735                         continue;
 736
 737                 /* check version */
 738                 pkgv = pkg_version_str_alloc(pkg);
 739                 if (sstrcmp(pkgv, ver)) {
 740                         free(pkgv);
 741                         continue;
 742                 }
 743                 free(pkgv);
 744
 745                 /* check architecture */
 746                 if (arch) {
 747                         if (sstrcmp(pkg->architecture, arch))
 748                                 continue;
 749                 }
 750
 751                 /* check repository */
 752                 if (repo) {
 753                         if (sstrcmp(pkg->src->name, repo))
 754                                 continue;
 755                 }
 756
 757                 /* match found */
 758                 pkg_found = 1;
 759                 break;
 760         }
 761
 762         pkg_vec_free(all);
 763
 764         return pkg_found ? pkg : NULL;
 765 }
 766
 767 /**
 768  * @brief Check the accessibility of repositories.
 769  * @return return how many repositories cannot access. 0 means all okay.
 770  */
 771 int opkg_repository_accessibility_check(void)
 772 {
 773         pkg_src_list_elt_t *iter;
 774         str_list_elt_t *iter1;
 775         str_list_t *src;
 776         int repositories = 0;
 777         int ret = 0;
 778         char *repo_ptr;
 779         char *stmp;
 780         char *host, *end;
 781
 782         src = str_list_alloc();
 783
 784         list_for_each_entry(iter, &conf->pkg_src_list.head, node) {
 785                 host = strstr(((pkg_src_t *) iter->data)->value, "://") + 3;
 786                 end = index(host, '/');
 787                 if (strstr(((pkg_src_t *) iter->data)->value, "://") && end)
 788                         stmp = xstrndup(((pkg_src_t *) iter->data)->value,
 789                                         end -
 790                                         ((pkg_src_t *) iter->data)->value);
 791                 else
 792                         stmp = xstrdup(((pkg_src_t *) iter->data)->value);
 793
 794                 for (iter1 = str_list_first(src); iter1;
 795                      iter1 = str_list_next(src, iter1)) {
 796                         if (strstr(iter1->data, stmp))
 797                                 break;
 798                 }
 799                 if (iter1)
 800                         continue;
 801
 802                 sprintf_alloc(&repo_ptr, "%s/index.html", stmp);
 803                 free(stmp);
 804
 805                 str_list_append(src, repo_ptr);
 806                 free(repo_ptr);
 807                 repositories++;
 808         }
 809
 810         while (repositories > 0) {
 811                 iter1 = str_list_pop(src);
 812                 repositories--;
 813
 814                 if (opkg_download(iter1->data, "/dev/null", NULL, NULL, 0))
 815                         ret++;
 816                 str_list_elt_deinit(iter1);
 817         }
 818
 819         free(src);
 820
 821         return ret;
 822 }