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 #ifdef HAVE_CURL
 141         opkg_curl_cleanup();
 142 #endif
 143         opkg_conf_deinit();
 144 }
 145
 146 int opkg_re_read_config_files(void)
 147 {
 148         opkg_free();
 149         *conf = saved_conf;
 150         return opkg_new();
 151 }
 152
 153 void opkg_get_option(char *option, void **value)
 154 {
 155         int i = 0;
 156         extern opkg_option_t options[];
 157
 158         /* look up the option
 159          * TODO: this would be much better as a hash table
 160          */
 161         while (options[i].name) {
 162                 if (strcmp(options[i].name, option) != 0) {
 163                         i++;
 164                         continue;
 165                 }
 166         }
 167
 168         /* get the option */
 169         switch (options[i].type) {
 170         case OPKG_OPT_TYPE_BOOL:
 171                 *((int *)value) = *((int *)options[i].value);
 172                 return;
 173
 174         case OPKG_OPT_TYPE_INT:
 175                 *((int *)value) = *((int *)options[i].value);
 176                 return;
 177
 178         case OPKG_OPT_TYPE_STRING:
 179                 *((char **)value) = xstrdup(options[i].value);
 180                 return;
 181         }
 182
 183 }
 184
 185 void opkg_set_option(char *option, void *value)
 186 {
 187         int i = 0, found = 0;
 188         extern opkg_option_t options[];
 189
 190         opkg_assert(option != NULL);
 191         opkg_assert(value != NULL);
 192
 193         /* look up the option
 194          * TODO: this would be much better as a hash table
 195          */
 196         while (options[i].name) {
 197                 if (strcmp(options[i].name, option) == 0) {
 198                         found = 1;
 199                         break;
 200                 }
 201                 i++;
 202         }
 203
 204         if (!found) {
 205                 opkg_msg(ERROR, "Invalid option: %s\n", option);
 206                 return;
 207         }
 208
 209         /* set the option */
 210         switch (options[i].type) {
 211         case OPKG_OPT_TYPE_BOOL:
 212                 if (*((int *)value) == 0)
 213                         *((int *)options[i].value) = 0;
 214                 else
 215                         *((int *)options[i].value) = 1;
 216                 return;
 217
 218         case OPKG_OPT_TYPE_INT:
 219                 *((int *)options[i].value) = *((int *)value);
 220                 return;
 221
 222         case OPKG_OPT_TYPE_STRING:
 223                 *((char **)options[i].value) = xstrdup(value);
 224                 return;
 225         }
 226
 227 }
 228
 229 /**
 230  * @brief libopkg API: Install package
 231  * @param package_name The name of package in which is going to install
 232  * @param progress_callback The callback function that report the status to caller.
 233  */
 234 int
 235 opkg_install_package(const char *package_name,
 236                      opkg_progress_callback_t progress_callback,
 237                      void *user_data)
 238 {
 239         int err;
 240         char *stripped_filename, *local_filename;
 241         opkg_progress_data_t pdata;
 242         pkg_t *old, *new;
 243         pkg_vec_t *deps, *all;
 244         int i, ndepends;
 245         char **unresolved = NULL;
 246         const char *filename;
 247
 248         opkg_assert(package_name != NULL);
 249
 250         /* ... */
 251         pkg_info_preinstall_check();
 252
 253         /* check to ensure package is not already installed */
 254         old = pkg_hash_fetch_installed_by_name(package_name);
 255         if (old) {
 256                 opkg_msg(ERROR, "Package %s is already installed\n",
 257                          package_name);
 258                 return -1;
 259         }
 260
 261         new = pkg_hash_fetch_best_installation_candidate_by_name(package_name);
 262         if (!new) {
 263                 opkg_msg(ERROR, "Couldn't find package %s\n", package_name);
 264                 return -1;
 265         }
 266
 267         new->state_flag |= SF_USER;
 268
 269         pdata.action = -1;
 270         pdata.pkg = new;
 271
 272         progress(pdata, 0);
 273
 274         /* find dependancies and download them */
 275         deps = pkg_vec_alloc();
 276         /* this function does not return the original package, so we insert it later */
 277         ndepends = pkg_hash_fetch_unsatisfied_dependencies(new, deps,
 278                                                            &unresolved);
 279         if (unresolved) {
 280                 char **tmp = unresolved;
 281                 opkg_msg(ERROR, "Couldn't satisfy the following dependencies"
 282                          " for %s:\n", package_name);
 283                 while (*tmp) {
 284                         opkg_msg(ERROR, "\t%s", *tmp);
 285                         free(*tmp);
 286                         tmp++;
 287                 }
 288                 free(unresolved);
 289                 pkg_vec_free(deps);
 290                 opkg_message(ERROR, "\n");
 291                 return -1;
 292         }
 293
 294         /* insert the package we are installing so that we download it */
 295         pkg_vec_insert(deps, new);
 296
 297         /* download package and dependencies */
 298         for (i = 0; i < deps->len; i++) {
 299                 pkg_t *pkg;
 300                 struct _curl_cb_data cb_data;
 301                 char *url;
 302
 303                 pkg = deps->pkgs[i];
 304                 if (pkg_get_string(pkg, PKG_LOCAL_FILENAME))
 305                         continue;
 306
 307                 pdata.pkg = pkg;
 308                 pdata.action = OPKG_DOWNLOAD;
 309
 310                 if (pkg->src == NULL) {
 311                         opkg_msg(ERROR, "Package %s not available from any "
 312                                  "configured src\n", package_name);
 313                         return -1;
 314                 }
 315
 316                 filename = pkg_get_string(pkg, PKG_FILENAME);
 317
 318                 sprintf_alloc(&url, "%s/%s", pkg->src->value, filename);
 319
 320                 /* Get the filename part, without any directory */
 321                 stripped_filename = strrchr(filename, '/');
 322                 if (!stripped_filename)
 323                         stripped_filename = (char *)filename;
 324
 325                 sprintf_alloc(&local_filename, "%s/%s", conf->tmp_dir,
 326                               stripped_filename);
 327
 328                 pkg_set_string(pkg, PKG_LOCAL_FILENAME, local_filename);
 329
 330                 cb_data.cb = progress_callback;
 331                 cb_data.progress_data = &pdata;
 332                 cb_data.user_data = user_data;
 333                 /* 75% of "install" progress is for downloading */
 334                 cb_data.start_range = 75 * i / deps->len;
 335                 cb_data.finish_range = 75 * (i + 1) / deps->len;
 336
 337                 err = opkg_download(url, local_filename,
 338                                     (curl_progress_func) curl_progress_cb,
 339                                     &cb_data, 0);
 340                 free(url);
 341
 342                 if (err) {
 343                         pkg_vec_free(deps);
 344                         return -1;
 345                 }
 346
 347         }
 348         pkg_vec_free(deps);
 349
 350         /* clear depenacy checked marks, left by pkg_hash_fetch_unsatisfied_dependencies */
 351         all = pkg_vec_alloc();
 352         pkg_hash_fetch_available(all);
 353         for (i = 0; i < all->len; i++) {
 354                 all->pkgs[i]->parent->dependencies_checked = 0;
 355         }
 356         pkg_vec_free(all);
 357
 358         /* 75% of "install" progress is for downloading */
 359         pdata.pkg = new;
 360         pdata.action = OPKG_INSTALL;
 361         progress(pdata, 75);
 362
 363         /* unpack the package */
 364         err = opkg_install_pkg(new, 0);
 365
 366         if (err) {
 367                 return -1;
 368         }
 369
 370         progress(pdata, 75);
 371
 372         /* run configure scripts, etc. */
 373         err = opkg_configure_packages(NULL);
 374         if (err) {
 375                 return -1;
 376         }
 377
 378         /* write out status files and file lists */
 379         opkg_conf_write_status_files();
 380         pkg_write_changed_filelists();
 381
 382         progress(pdata, 100);
 383         return 0;
 384 }
 385
 386 int
 387 opkg_remove_package(const char *package_name,
 388                     opkg_progress_callback_t progress_callback, void *user_data)
 389 {
 390         int err;
 391         pkg_t *pkg = NULL;
 392         pkg_t *pkg_to_remove;
 393         opkg_progress_data_t pdata;
 394
 395         opkg_assert(package_name != NULL);
 396
 397         pkg_info_preinstall_check();
 398
 399         pkg = pkg_hash_fetch_installed_by_name(package_name);
 400
 401         if (pkg == NULL || pkg->state_status == SS_NOT_INSTALLED) {
 402                 opkg_msg(ERROR, "Package %s not installed\n", package_name);
 403                 return -1;
 404         }
 405
 406         pdata.action = OPKG_REMOVE;
 407         pdata.pkg = pkg;
 408         progress(pdata, 0);
 409
 410         if (conf->restrict_to_default_dest) {
 411                 pkg_to_remove = pkg_hash_fetch_installed_by_name_dest(pkg->name,
 412                                                                       conf->
 413                                                                       default_dest);
 414         } else {
 415                 pkg_to_remove = pkg_hash_fetch_installed_by_name(pkg->name);
 416         }
 417
 418         progress(pdata, 75);
 419
 420         err = opkg_remove_pkg(pkg_to_remove, 0);
 421
 422         /* write out status files and file lists */
 423         opkg_conf_write_status_files();
 424         pkg_write_changed_filelists();
 425
 426         progress(pdata, 100);
 427         return (err) ? -1 : 0;
 428 }
 429
 430 int
 431 opkg_upgrade_package(const char *package_name,
 432                      opkg_progress_callback_t progress_callback,
 433                      void *user_data)
 434 {
 435         int err;
 436         pkg_t *pkg;
 437         opkg_progress_data_t pdata;
 438
 439         opkg_assert(package_name != NULL);
 440
 441         pkg_info_preinstall_check();
 442
 443         if (conf->restrict_to_default_dest) {
 444                 pkg = pkg_hash_fetch_installed_by_name_dest(package_name,
 445                                                             conf->default_dest);
 446         } else {
 447                 pkg = pkg_hash_fetch_installed_by_name(package_name);
 448         }
 449
 450         if (!pkg) {
 451                 opkg_msg(ERROR, "Package %s not installed\n", package_name);
 452                 return -1;
 453         }
 454
 455         pdata.action = OPKG_INSTALL;
 456         pdata.pkg = pkg;
 457         progress(pdata, 0);
 458
 459         err = opkg_upgrade_pkg(pkg);
 460         if (err) {
 461                 return -1;
 462         }
 463         progress(pdata, 75);
 464
 465         err = opkg_configure_packages(NULL);
 466         if (err) {
 467                 return -1;
 468         }
 469
 470         /* write out status files and file lists */
 471         opkg_conf_write_status_files();
 472         pkg_write_changed_filelists();
 473
 474         progress(pdata, 100);
 475         return 0;
 476 }
 477
 478 int
 479 opkg_upgrade_all(opkg_progress_callback_t progress_callback, void *user_data)
 480 {
 481         pkg_vec_t *installed;
 482         int err = 0;
 483         int i;
 484         pkg_t *pkg;
 485         opkg_progress_data_t pdata;
 486
 487         pdata.action = OPKG_INSTALL;
 488         pdata.pkg = NULL;
 489
 490         progress(pdata, 0);
 491
 492         installed = pkg_vec_alloc();
 493         pkg_info_preinstall_check();
 494
 495         pkg_hash_fetch_all_installed(installed);
 496         for (i = 0; i < installed->len; i++) {
 497                 pkg = installed->pkgs[i];
 498
 499                 pdata.pkg = pkg;
 500                 progress(pdata, 99 * i / installed->len);
 501
 502                 err += opkg_upgrade_pkg(pkg);
 503         }
 504         pkg_vec_free(installed);
 505
 506         if (err)
 507                 return 1;
 508
 509         err = opkg_configure_packages(NULL);
 510         if (err)
 511                 return 1;
 512
 513         /* write out status files and file lists */
 514         opkg_conf_write_status_files();
 515         pkg_write_changed_filelists();
 516
 517         pdata.pkg = NULL;
 518         progress(pdata, 100);
 519         return 0;
 520 }
 521
 522 int
 523 opkg_update_package_lists(opkg_progress_callback_t progress_callback,
 524                           void *user_data)
 525 {
 526         char *tmp;
 527         int err, result = 0;
 528         char *lists_dir;
 529         pkg_src_list_elt_t *iter;
 530         pkg_src_t *src;
 531         int sources_list_count, sources_done;
 532         opkg_progress_data_t pdata;
 533
 534         pdata.action = OPKG_DOWNLOAD;
 535         pdata.pkg = NULL;
 536         progress(pdata, 0);
 537
 538         sprintf_alloc(&lists_dir, "%s", (conf->restrict_to_default_dest)
 539                       ? conf->default_dest->lists_dir : conf->lists_dir);
 540
 541         if (!file_is_dir(lists_dir)) {
 542                 if (file_exists(lists_dir)) {
 543                         opkg_msg(ERROR, "%s is not a directory\n", lists_dir);
 544                         free(lists_dir);
 545                         return 1;
 546                 }
 547
 548                 err = file_mkdir_hier(lists_dir, 0755);
 549                 if (err) {
 550                         opkg_msg(ERROR, "Couldn't create lists_dir %s\n",
 551                                  lists_dir);
 552                         free(lists_dir);
 553                         return 1;
 554                 }
 555         }
 556
 557         sprintf_alloc(&tmp, "%s/update-XXXXXX", conf->tmp_dir);
 558         if (mkdtemp(tmp) == NULL) {
 559                 opkg_perror(ERROR, "Coundn't create temporary directory %s",
 560                             tmp);
 561                 free(lists_dir);
 562                 free(tmp);
 563                 return 1;
 564         }
 565
 566         /* count the number of sources so we can give some progress updates */
 567         sources_list_count = 0;
 568         sources_done = 0;
 569         list_for_each_entry(iter, &conf->pkg_src_list.head, node) {
 570                 sources_list_count++;
 571         }
 572
 573         list_for_each_entry(iter, &conf->pkg_src_list.head, node) {
 574                 char *url, *list_file_name = NULL;
 575
 576                 src = (pkg_src_t *) iter->data;
 577
 578                 if (src->extra_data)    /* debian style? */
 579                         sprintf_alloc(&url, "%s/%s/%s", src->value,
 580                                       src->extra_data,
 581                                       src->gzip ? "Packages.gz" : "Packages");
 582                 else
 583                         sprintf_alloc(&url, "%s/%s", src->value,
 584                                       src->gzip ? "Packages.gz" : "Packages");
 585
 586                 sprintf_alloc(&list_file_name, "%s/%s", lists_dir, src->name);
 587
 588                 if (opkg_download(url, list_file_name, NULL, NULL, 0)) {
 589                         opkg_msg(ERROR, "Couldn't retrieve %s\n", url);
 590                         result = -1;
 591                 }
 592                 free(url);
 593
 594 #if defined(HAVE_GPGME) || defined(HAVE_OPENSSL) || defined(HAVE_USIGN)
 595                 if (conf->check_signature) {
 596                         char *sig_file_name;
 597                         /* download detached signitures to verify the package lists */
 598                         /* get the url for the sig file */
 599                         if (src->extra_data)    /* debian style? */
 600                                 sprintf_alloc(&url, "%s/%s/%s", src->value,
 601                                               src->extra_data, "Packages.sig");
 602                         else
 603                                 sprintf_alloc(&url, "%s/%s", src->value,
 604                                               "Packages.sig");
 605
 606                         /* create filename for signature */
 607                         sprintf_alloc(&sig_file_name, "%s/%s.sig", lists_dir,
 608                                       src->name);
 609
 610                         /* make sure there is no existing signature file */
 611                         unlink(sig_file_name);
 612
 613                         err = opkg_download(url, sig_file_name, NULL, NULL, 0);
 614                         if (err) {
 615                                 opkg_msg(ERROR, "Couldn't retrieve %s\n", url);
 616                         } else {
 617                                 int err;
 618                                 err = opkg_verify_file(list_file_name,
 619                                                        sig_file_name);
 620                                 if (err == 0) {
 621                                         opkg_msg(INFO, "Signature check "
 622                                                  "passed for %s",
 623                                                  list_file_name);
 624                                 } else {
 625                                         opkg_msg(ERROR, "Signature check "
 626                                                  "failed for %s",
 627                                                  list_file_name);
 628                                 }
 629                         }
 630                         free(sig_file_name);
 631                         free(url);
 632                 }
 633 #else
 634                 opkg_msg(INFO, "Signature check skipped for %s as GPG support"
 635                          " has not been enabled in this build\n",
 636                          list_file_name);
 637 #endif
 638                 free(list_file_name);
 639
 640                 sources_done++;
 641                 progress(pdata, 100 * sources_done / sources_list_count);
 642         }
 643
 644         rmdir(tmp);
 645         free(tmp);
 646         free(lists_dir);
 647
 648         /* Now re-read the package lists to update package hash tables. */
 649         opkg_re_read_config_files();
 650
 651         return result;
 652 }
 653
 654 static int pkg_compare_names_and_version(const void *a0, const void *b0)
 655 {
 656         const pkg_t *a = *(const pkg_t **)a0;
 657         const pkg_t *b = *(const pkg_t **)b0;
 658         int ret;
 659
 660         ret = strcmp(a->name, b->name);
 661
 662         if (ret == 0)
 663                 ret = pkg_compare_versions(a, b);
 664
 665         return ret;
 666 }
 667
 668 int opkg_list_packages(opkg_package_callback_t callback, void *user_data)
 669 {
 670         pkg_vec_t *all;
 671         int i;
 672
 673         opkg_assert(callback);
 674
 675         all = pkg_vec_alloc();
 676         pkg_hash_fetch_available(all);
 677
 678         pkg_vec_sort(all, pkg_compare_names_and_version);
 679
 680         for (i = 0; i < all->len; i++) {
 681                 pkg_t *pkg;
 682
 683                 pkg = all->pkgs[i];
 684
 685                 callback(pkg, user_data);
 686         }
 687
 688         pkg_vec_free(all);
 689
 690         return 0;
 691 }
 692
 693 int
 694 opkg_list_upgradable_packages(opkg_package_callback_t callback, void *user_data)
 695 {
 696         struct active_list *head;
 697         struct active_list *node;
 698         pkg_t *old = NULL, *new = NULL;
 699
 700         opkg_assert(callback);
 701
 702         /* ensure all data is valid */
 703         pkg_info_preinstall_check();
 704
 705         head = prepare_upgrade_list();
 706         for (node = active_list_next(head, head); node;
 707              node = active_list_next(head, node)) {
 708                 old = node->pkg;
 709                 new =
 710                     pkg_hash_fetch_best_installation_candidate_by_name(old->
 711                                                                        name);
 712                 if (new == NULL)
 713                         continue;
 714                 callback(new, user_data);
 715         }
 716         active_list_head_delete(head);
 717         return 0;
 718 }
 719
 720 pkg_t *opkg_find_package(const char *name, const char *ver, const char *arch,
 721                          const char *repo)
 722 {
 723         int pkg_found = 0;
 724         pkg_t *pkg = NULL;
 725         pkg_vec_t *all;
 726         int i;
 727 #define sstrcmp(x,y) (x && y) ? strcmp (x, y) : 0
 728
 729         all = pkg_vec_alloc();
 730         pkg_hash_fetch_available(all);
 731         for (i = 0; i < all->len; i++) {
 732                 char *pkgv;
 733
 734                 pkg = all->pkgs[i];
 735
 736                 /* check name */
 737                 if (sstrcmp(pkg->name, name))
 738                         continue;
 739
 740                 /* check version */
 741                 pkgv = pkg_version_str_alloc(pkg);
 742                 if (sstrcmp(pkgv, ver)) {
 743                         free(pkgv);
 744                         continue;
 745                 }
 746                 free(pkgv);
 747
 748                 /* check architecture */
 749                 if (arch) {
 750                         if (sstrcmp(pkg_get_architecture(pkg), arch))
 751                                 continue;
 752                 }
 753
 754                 /* check repository */
 755                 if (repo) {
 756                         if (sstrcmp(pkg->src->name, repo))
 757                                 continue;
 758                 }
 759
 760                 /* match found */
 761                 pkg_found = 1;
 762                 break;
 763         }
 764
 765         pkg_vec_free(all);
 766
 767         return pkg_found ? pkg : NULL;
 768 }
 769
 770 /**
 771  * @brief Check the accessibility of repositories.
 772  * @return return how many repositories cannot access. 0 means all okay.
 773  */
 774 int opkg_repository_accessibility_check(void)
 775 {
 776         pkg_src_list_elt_t *iter;
 777         str_list_elt_t *iter1;
 778         str_list_t *src;
 779         int repositories = 0;
 780         int ret = 0;
 781         char *repo_ptr;
 782         char *stmp;
 783         char *host, *end;
 784
 785         src = str_list_alloc();
 786
 787         list_for_each_entry(iter, &conf->pkg_src_list.head, node) {
 788                 host = strstr(((pkg_src_t *) iter->data)->value, "://") + 3;
 789                 end = index(host, '/');
 790                 if (strstr(((pkg_src_t *) iter->data)->value, "://") && end)
 791                         stmp = xstrndup(((pkg_src_t *) iter->data)->value,
 792                                         end -
 793                                         ((pkg_src_t *) iter->data)->value);
 794                 else
 795                         stmp = xstrdup(((pkg_src_t *) iter->data)->value);
 796
 797                 for (iter1 = str_list_first(src); iter1;
 798                      iter1 = str_list_next(src, iter1)) {
 799                         if (strstr(iter1->data, stmp))
 800                                 break;
 801                 }
 802                 if (iter1)
 803                         continue;
 804
 805                 sprintf_alloc(&repo_ptr, "%s/index.html", stmp);
 806                 free(stmp);
 807
 808                 str_list_append(src, repo_ptr);
 809                 free(repo_ptr);
 810                 repositories++;
 811         }
 812
 813         while (repositories > 0) {
 814                 iter1 = str_list_pop(src);
 815                 repositories--;
 816
 817                 if (opkg_download(iter1->data, "/dev/null", NULL, NULL, 0))
 818                         ret++;
 819                 str_list_elt_deinit(iter1);
 820         }
 821
 822         free(src);
 823
 824         return ret;
 825 }