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 #include <fnmatch.h>
  20
  21 #include "opkg.h"
  22 #include "opkg_conf.h"
  23 #include "args.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 args_t *args;
  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
  47 opkg_configure_packages(char *pkg_name)
  48 {
  49         pkg_vec_t *all;
  50         int i;
  51         pkg_t *pkg;
  52         int r, err = 0;
  53
  54         all = pkg_vec_alloc();
  55         pkg_hash_fetch_available(all);
  56
  57         for (i = 0; i < all->len; i++) {
  58                 pkg = all->pkgs[i];
  59
  60                 if (pkg_name && fnmatch(pkg_name, pkg->name, 0))
  61                         continue;
  62
  63                 if (pkg->state_status == SS_UNPACKED) {
  64                         r = opkg_configure(pkg);
  65                         if (r == 0) {
  66                                 pkg->state_status = SS_INSTALLED;
  67                                 pkg->parent->state_status = SS_INSTALLED;
  68                                 pkg->state_flag &= ~SF_PREFER;
  69                         } else {
  70                                 if (!err)
  71                                         err = r;
  72                         }
  73                 }
  74         }
  75
  76         pkg_vec_free(all);
  77         return err;
  78 }
  79
  80 struct _curl_cb_data {
  81         opkg_progress_callback_t cb;
  82         opkg_progress_data_t *progress_data;
  83         void *user_data;
  84         int start_range;
  85         int finish_range;
  86 };
  87
  88 int
  89 curl_progress_cb(struct _curl_cb_data *cb_data, double t,       /* dltotal */
  90                 double d,       /* dlnow */
  91                 double ultotal, double ulnow)
  92 {
  93         int p = (t) ? d * 100 / t : 0;
  94         static int prev = -1;
  95         int progress = 0;
  96
  97         /* prevent the same value being sent twice (can occur due to rounding) */
  98         if (p == prev)
  99                 return 0;
 100         prev = p;
 101
 102         if (t < 1)
 103                 return 0;
 104
 105         progress = cb_data->start_range +
 106             (d / t * ((cb_data->finish_range - cb_data->start_range)));
 107         cb_data->progress_data->percentage = progress;
 108
 109         (cb_data->cb) (cb_data->progress_data, cb_data->user_data);
 110
 111         return 0;
 112 }
 113
 114
 115 /*** Public API ***/
 116
 117 int
 118 opkg_new()
 119 {
 120         int err;
 121
 122         args = xcalloc(1, sizeof(args_t));
 123         args_init(args);
 124
 125         err = opkg_conf_init(args);
 126         if (err) {
 127                 free(args);
 128                 return -1;
 129         }
 130
 131         return 0;
 132 }
 133
 134 void
 135 opkg_free(void)
 136 {
 137 #ifdef HAVE_CURL
 138         opkg_curl_cleanup();
 139 #endif
 140         opkg_conf_deinit();
 141         args_deinit(args);
 142         free(args);
 143 }
 144
 145 int
 146 opkg_re_read_config_files(void)
 147 {
 148         /* Unfortunately, the easiest way to re-read the config files right now is to
 149          * throw away conf and start again */
 150         opkg_free();
 151         memset(conf, '\0', sizeof(opkg_conf_t));
 152         return opkg_new();
 153         return 0;
 154 }
 155
 156 void
 157 opkg_get_option(char *option, void **value)
 158 {
 159         int i = 0;
 160         extern opkg_option_t options[];
 161
 162         /* look up the option
 163          * TODO: this would be much better as a hash table
 164          */
 165         while (options[i].name) {
 166                 if (strcmp(options[i].name, option) != 0) {
 167                         i++;
 168                         continue;
 169                 }
 170         }
 171
 172         /* get the option */
 173         switch (options[i].type) {
 174         case OPKG_OPT_TYPE_BOOL:
 175                 *((int *) value) = *((int *) options[i].value);
 176                 return;
 177
 178         case OPKG_OPT_TYPE_INT:
 179                 *((int *) value) = *((int *) options[i].value);
 180                 return;
 181
 182         case OPKG_OPT_TYPE_STRING:
 183                 *((char **) value) = xstrdup(options[i].value);
 184                 return;
 185         }
 186
 187 }
 188
 189 void
 190 opkg_set_option(char *option, void *value)
 191 {
 192         int i = 0, found = 0;
 193         extern opkg_option_t options[];
 194
 195         opkg_assert(option != NULL);
 196         opkg_assert(value != NULL);
 197
 198         /* look up the option
 199          * TODO: this would be much better as a hash table
 200          */
 201         while (options[i].name) {
 202                 if (strcmp(options[i].name, option) == 0) {
 203                         found = 1;
 204                         break;
 205                 }
 206                 i++;
 207         }
 208
 209         if (!found) {
 210                 opkg_msg(ERROR, "Invalid option: %s\n", option);
 211                 return;
 212         }
 213
 214         /* set the option */
 215         switch (options[i].type) {
 216         case OPKG_OPT_TYPE_BOOL:
 217                 if (*((int *) value) == 0)
 218                         *((int *) options[i].value) = 0;
 219                 else
 220                         *((int *) options[i].value) = 1;
 221                 return;
 222
 223         case OPKG_OPT_TYPE_INT:
 224                 *((int *) options[i].value) = *((int *) value);
 225                 return;
 226
 227         case OPKG_OPT_TYPE_STRING:
 228                 *((char **) options[i].value) = xstrdup(value);
 229                 return;
 230         }
 231
 232 }
 233
 234 /**
 235  * @brief libopkg API: Install package
 236  * @param package_name The name of package in which is going to install
 237  * @param progress_callback The callback function that report the status to caller.
 238  */
 239 int
 240 opkg_install_package(const char *package_name,
 241                 opkg_progress_callback_t progress_callback,
 242                 void *user_data)
 243 {
 244         int err;
 245         char *stripped_filename;
 246         opkg_progress_data_t pdata;
 247         pkg_t *old, *new;
 248         pkg_vec_t *deps, *all;
 249         int i, ndepends;
 250         char **unresolved = NULL;
 251
 252         opkg_assert(package_name != NULL);
 253
 254         /* ... */
 255         pkg_info_preinstall_check();
 256
 257
 258         /* check to ensure package is not already installed */
 259         old = pkg_hash_fetch_installed_by_name(package_name);
 260         if (old) {
 261                 opkg_msg(ERROR, "Package %s is already installed\n",
 262                                 package_name);
 263                 return -1;
 264         }
 265
 266         new = pkg_hash_fetch_best_installation_candidate_by_name(package_name);
 267         if (!new) {
 268                 opkg_msg(ERROR, "Couldn't find package %s\n", package_name);
 269                 return -1;
 270         }
 271
 272         new->state_flag |= SF_USER;
 273
 274         pdata.action = -1;
 275         pdata.pkg = new;
 276
 277         progress(pdata, 0);
 278
 279         /* find dependancies and download them */
 280         deps = pkg_vec_alloc();
 281         /* this function does not return the original package, so we insert it later */
 282         ndepends = pkg_hash_fetch_unsatisfied_dependencies(new, deps,
 283                         &unresolved);
 284         if (unresolved) {
 285                 char **tmp = unresolved;
 286                 opkg_msg(ERROR, "Couldn't satisfy the following dependencies"
 287                                " for %s:\n", package_name);
 288                 while (*tmp) {
 289                         opkg_msg(ERROR, "\t%s", *tmp);
 290                         free(*tmp);
 291                         tmp++;
 292                 }
 293                 free(unresolved);
 294                 pkg_vec_free(deps);
 295                 return -1;
 296         }
 297
 298         /* insert the package we are installing so that we download it */
 299         pkg_vec_insert(deps, new);
 300
 301         /* download package and dependencies */
 302         for (i = 0; i < deps->len; i++) {
 303                 pkg_t *pkg;
 304                 struct _curl_cb_data cb_data;
 305                 char *url;
 306
 307                 pkg = deps->pkgs[i];
 308                 if (pkg->local_filename)
 309                         continue;
 310
 311                 pdata.pkg = pkg;
 312                 pdata.action = OPKG_DOWNLOAD;
 313
 314                 if (pkg->src == NULL) {
 315                         opkg_msg(ERROR, "Package %s not available from any "
 316                                         "configured src\n", package_name);
 317                         return -1;
 318                 }
 319
 320                 sprintf_alloc(&url, "%s/%s", pkg->src->value, pkg->filename);
 321
 322                 /* Get the filename part, without any directory */
 323                 stripped_filename = strrchr(pkg->filename, '/');
 324                 if (!stripped_filename)
 325                         stripped_filename = pkg->filename;
 326
 327                 sprintf_alloc(&pkg->local_filename, "%s/%s", conf->tmp_dir,
 328                               stripped_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, pkg->local_filename,
 338                                     (curl_progress_func) curl_progress_cb,
 339                                     &cb_data);
 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
 359         /* 75% of "install" progress is for downloading */
 360         pdata.pkg = new;
 361         pdata.action = OPKG_INSTALL;
 362         progress(pdata, 75);
 363
 364         /* unpack the package */
 365         err = opkg_install_pkg(new, 0);
 366
 367         if (err) {
 368                 return -1;
 369         }
 370
 371         progress(pdata, 75);
 372
 373         /* run configure scripts, etc. */
 374         err = opkg_configure_packages(NULL);
 375         if (err) {
 376                 return -1;
 377         }
 378
 379         /* write out status files and file lists */
 380         opkg_conf_write_status_files();
 381         pkg_write_changed_filelists();
 382
 383         progress(pdata, 100);
 384         return 0;
 385 }
 386
 387 int
 388 opkg_remove_package(const char *package_name,
 389                 opkg_progress_callback_t progress_callback, void *user_data)
 390 {
 391         int err;
 392         pkg_t *pkg = NULL;
 393         pkg_t *pkg_to_remove;
 394         opkg_progress_data_t pdata;
 395
 396         opkg_assert(package_name != NULL);
 397
 398         pkg_info_preinstall_check();
 399
 400         pkg = pkg_hash_fetch_installed_by_name(package_name);
 401
 402         if (pkg == NULL || pkg->state_status == SS_NOT_INSTALLED) {
 403                 opkg_msg(ERROR, "Package %s not installed\n", package_name);
 404                 return -1;
 405         }
 406
 407         pdata.action = OPKG_REMOVE;
 408         pdata.pkg = pkg;
 409         progress(pdata, 0);
 410
 411         if (conf->restrict_to_default_dest) {
 412                 pkg_to_remove = pkg_hash_fetch_installed_by_name_dest(pkg->name,
 413                                                       conf->default_dest);
 414         } else {
 415                 pkg_to_remove = pkg_hash_fetch_installed_by_name(pkg->name);
 416         }
 417
 418
 419         progress(pdata, 75);
 420
 421         err = opkg_remove_pkg(pkg_to_remove, 0);
 422
 423         /* write out status files and file lists */
 424         opkg_conf_write_status_files();
 425         pkg_write_changed_filelists();
 426
 427
 428         progress(pdata, 100);
 429         return (err) ? -1 : 0;
 430 }
 431
 432 int
 433 opkg_upgrade_package(const char *package_name,
 434                 opkg_progress_callback_t progress_callback,
 435                 void *user_data)
 436 {
 437         int err;
 438         pkg_t *pkg;
 439         opkg_progress_data_t pdata;
 440
 441         opkg_assert(package_name != NULL);
 442
 443         pkg_info_preinstall_check();
 444
 445         if (conf->restrict_to_default_dest) {
 446                 pkg = pkg_hash_fetch_installed_by_name_dest(package_name,
 447                                                             conf->default_dest);
 448         } else {
 449                 pkg = pkg_hash_fetch_installed_by_name(package_name);
 450         }
 451
 452         if (!pkg) {
 453                 opkg_msg(ERROR, "Package %s not installed\n", package_name);
 454                 return -1;
 455         }
 456
 457         pdata.action = OPKG_INSTALL;
 458         pdata.pkg = pkg;
 459         progress(pdata, 0);
 460
 461         err = opkg_upgrade_pkg(pkg);
 462         if (err) {
 463                 return -1;
 464         }
 465         progress(pdata, 75);
 466
 467         err = opkg_configure_packages(NULL);
 468         if (err) {
 469                 return -1;
 470         }
 471
 472         /* write out status files and file lists */
 473         opkg_conf_write_status_files();
 474         pkg_write_changed_filelists();
 475
 476         progress(pdata, 100);
 477         return 0;
 478 }
 479
 480 int
 481 opkg_upgrade_all(opkg_progress_callback_t progress_callback, void *user_data)
 482 {
 483         pkg_vec_t *installed;
 484         int err = 0;
 485         int i;
 486         pkg_t *pkg;
 487         opkg_progress_data_t pdata;
 488
 489         pdata.action = OPKG_INSTALL;
 490         pdata.pkg = NULL;
 491
 492         progress(pdata, 0);
 493
 494         installed = pkg_vec_alloc();
 495         pkg_info_preinstall_check();
 496
 497         pkg_hash_fetch_all_installed(installed);
 498         for (i = 0; i < installed->len; i++) {
 499                 pkg = installed->pkgs[i];
 500
 501                 pdata.pkg = pkg;
 502                 progress(pdata, 99 * i / installed->len);
 503
 504                 err += opkg_upgrade_pkg(pkg);
 505         }
 506         pkg_vec_free(installed);
 507
 508         if (err)
 509                 return 1;
 510
 511         err = opkg_configure_packages(NULL);
 512         if (err)
 513                 return 1;
 514
 515         pdata.pkg = NULL;
 516         progress(pdata, 100);
 517         return 0;
 518 }
 519
 520 int
 521 opkg_update_package_lists(opkg_progress_callback_t progress_callback,
 522                         void *user_data)
 523 {
 524         char *tmp;
 525         int err, result = 0;
 526         char *lists_dir;
 527         pkg_src_list_elt_t *iter;
 528         pkg_src_t *src;
 529         int sources_list_count, sources_done;
 530         opkg_progress_data_t pdata;
 531
 532         pdata.action = OPKG_DOWNLOAD;
 533         pdata.pkg = NULL;
 534         progress(pdata, 0);
 535
 536         sprintf_alloc(&lists_dir, "%s", (conf->restrict_to_default_dest)
 537                 ? conf->default_dest->lists_dir : conf->lists_dir);
 538
 539         if (!file_is_dir(lists_dir)) {
 540                 if (file_exists(lists_dir)) {
 541                         opkg_msg(ERROR, "%s is not a directory\n", lists_dir);
 542                         free(lists_dir);
 543                         return 1;
 544                 }
 545
 546                 err = file_mkdir_hier(lists_dir, 0755);
 547                 if (err) {
 548                         opkg_msg(ERROR, "Couldn't create lists_dir %s\n",
 549                                         lists_dir);
 550                         free(lists_dir);
 551                         return 1;
 552                 }
 553         }
 554
 555         sprintf_alloc(&tmp, "%s/update-XXXXXX", conf->tmp_dir);
 556         if (mkdtemp(tmp) == NULL) {
 557                 opkg_perror(ERROR, "Coundn't create temporary directory %s",
 558                                 tmp);
 559                 free(lists_dir);
 560                 free(tmp);
 561                 return 1;
 562         }
 563
 564         /* count the number of sources so we can give some progress updates */
 565         sources_list_count = 0;
 566         sources_done = 0;
 567         list_for_each_entry(iter, &conf->pkg_src_list.head, node) {
 568                 sources_list_count++;
 569         }
 570
 571         list_for_each_entry(iter, &conf->pkg_src_list.head, node) {
 572                 char *url, *list_file_name = NULL;
 573
 574                 src = (pkg_src_t *) iter->data;
 575
 576                 if (src->extra_data)    /* debian style? */
 577                         sprintf_alloc(&url, "%s/%s/%s", src->value,
 578                                       src->extra_data,
 579                                       src->gzip ? "Packages.gz" : "Packages");
 580                 else
 581                         sprintf_alloc(&url, "%s/%s", src->value,
 582                                       src->gzip ? "Packages.gz" : "Packages");
 583
 584                 sprintf_alloc(&list_file_name, "%s/%s", lists_dir, src->name);
 585                 if (src->gzip) {
 586                         FILE *in, *out;
 587                         struct _curl_cb_data cb_data;
 588                         char *tmp_file_name = NULL;
 589
 590                         sprintf_alloc(&tmp_file_name, "%s/%s.gz", tmp,
 591                                       src->name);
 592
 593                         opkg_msg(INFO, "Downloading %s to %s...\n", url,
 594                                         tmp_file_name);
 595
 596                         cb_data.cb = progress_callback;
 597                         cb_data.progress_data = &pdata;
 598                         cb_data.user_data = user_data;
 599                         cb_data.start_range =
 600                             100 * sources_done / sources_list_count;
 601                         cb_data.finish_range =
 602                             100 * (sources_done + 1) / sources_list_count;
 603
 604                         err = opkg_download(url, tmp_file_name,
 605                                           (curl_progress_func) curl_progress_cb,
 606                                           &cb_data);
 607
 608                         if (err == 0) {
 609                                 opkg_msg(INFO, "Inflating %s...\n",
 610                                                 tmp_file_name);
 611                                 in = fopen(tmp_file_name, "r");
 612                                 out = fopen(list_file_name, "w");
 613                                 if (in && out)
 614                                         unzip(in, out);
 615                                 else
 616                                         err = 1;
 617                                 if (in)
 618                                         fclose(in);
 619                                 if (out)
 620                                         fclose(out);
 621                                 unlink(tmp_file_name);
 622                         }
 623                         free(tmp_file_name);
 624                 } else
 625                         err = opkg_download(url, list_file_name, NULL, NULL);
 626
 627                 if (err) {
 628                         opkg_msg(ERROR, "Couldn't retrieve %s\n", url);
 629                         result = -1;
 630                 }
 631                 free(url);
 632
 633 #if defined(HAVE_GPGME) || defined(HAVE_OPENSSL)
 634                 if (conf->check_signature) {
 635                         char *sig_file_name;
 636                         /* download detached signitures to verify the package lists */
 637                         /* get the url for the sig file */
 638                         if (src->extra_data)    /* debian style? */
 639                                 sprintf_alloc(&url, "%s/%s/%s", src->value,
 640                                               src->extra_data, "Packages.sig");
 641                         else
 642                                 sprintf_alloc(&url, "%s/%s", src->value,
 643                                               "Packages.sig");
 644
 645                         /* create filename for signature */
 646                         sprintf_alloc(&sig_file_name, "%s/%s.sig", lists_dir,
 647                                       src->name);
 648
 649                         /* make sure there is no existing signature file */
 650                         unlink(sig_file_name);
 651
 652                         err = opkg_download(url, sig_file_name, NULL, NULL);
 653                         if (err) {
 654                                 opkg_msg(ERROR, "Couldn't retrieve %s\n", url);
 655                         } else {
 656                                 int err;
 657                                 err = opkg_verify_file(list_file_name,
 658                                                      sig_file_name);
 659                                 if (err == 0) {
 660                                         opkg_msg(INFO, "Signature check "
 661                                                         "passed for %s",
 662                                                         list_file_name);
 663                                 } else {
 664                                         opkg_msg(ERROR, "Signature check "
 665                                                         "failed for %s",
 666                                                         list_file_name);
 667                                 }
 668                         }
 669                         free(sig_file_name);
 670                         free(list_file_name);
 671                         free(url);
 672                 }
 673 #else
 674                 opkg_msg(INFO, "Signature check skipped for %s as GPG support"
 675                                 " has not been enabled in this build\n",
 676                                 list_file_name);
 677 #endif
 678
 679                 sources_done++;
 680                 progress(pdata, 100 * sources_done / sources_list_count);
 681         }
 682
 683         rmdir(tmp);
 684         free(tmp);
 685         free(lists_dir);
 686
 687         /* Now re-read the package lists to update package hash tables. */
 688         opkg_re_read_config_files();
 689
 690         return result;
 691 }
 692
 693
 694 int
 695 opkg_list_packages(opkg_package_callback_t callback, void *user_data)
 696 {
 697         pkg_vec_t *all;
 698         int i;
 699
 700         opkg_assert(callback);
 701
 702         all = pkg_vec_alloc();
 703         pkg_hash_fetch_available(all);
 704         for (i = 0; i < all->len; i++) {
 705                 pkg_t *pkg;
 706
 707                 pkg = all->pkgs[i];
 708
 709                 callback(pkg, user_data);
 710         }
 711
 712         pkg_vec_free(all);
 713
 714         return 0;
 715 }
 716
 717 int
 718 opkg_list_upgradable_packages(opkg_package_callback_t callback, void *user_data)
 719 {
 720         struct active_list *head;
 721         struct active_list *node;
 722         pkg_t *old = NULL, *new = NULL;
 723
 724         opkg_assert(callback);
 725
 726         /* ensure all data is valid */
 727         pkg_info_preinstall_check();
 728
 729         head = prepare_upgrade_list();
 730         for (node = active_list_next(head, head); node;
 731              active_list_next(head, node)) {
 732                 old = list_entry(node, pkg_t, list);
 733                 new = pkg_hash_fetch_best_installation_candidate_by_name(old->name);
 734                 if (new == NULL)
 735                         continue;
 736                 callback(new, user_data);
 737         }
 738         active_list_head_delete(head);
 739         return 0;
 740 }
 741
 742 pkg_t *
 743 opkg_find_package(const char *name, const char *ver, const char *arch,
 744                 const char *repo)
 745 {
 746         pkg_t *pkg = NULL;
 747         pkg_vec_t *all;
 748         int i;
 749 #define sstrcmp(x,y) (x && y) ? strcmp (x, y) : 0
 750
 751         all = pkg_vec_alloc();
 752         pkg_hash_fetch_available(all);
 753         for (i = 0; i < all->len; i++) {
 754                 char *pkgv;
 755
 756                 pkg = all->pkgs[i];
 757
 758                 /* check name */
 759                 if (sstrcmp(pkg->name, name))
 760                         continue;
 761
 762                 /* check version */
 763                 pkgv = pkg_version_str_alloc(pkg);
 764                 if (sstrcmp(pkgv, ver)) {
 765                         free(pkgv);
 766                         continue;
 767                 }
 768                 free(pkgv);
 769
 770                 /* check architecture */
 771                 if (arch) {
 772                         if (sstrcmp(pkg->architecture, arch))
 773                                 continue;
 774                 }
 775
 776                 /* check repository */
 777                 if (repo) {
 778                         if (sstrcmp(pkg->src->name, repo))
 779                                 continue;
 780                 }
 781
 782                 /* match found */
 783                 break;
 784         }
 785
 786         pkg_vec_free(all);
 787
 788         return pkg;
 789 }
 790
 791 #ifdef HAVE_CURL
 792 #include <curl/curl.h>
 793 #endif
 794 /**
 795  * @brief Check the accessibility of repositories. It will try to access the repository to check if the respository is accessible throught current network status.
 796  * @return return how many repositories cannot access. 0 means all okay.
 797  */
 798 int
 799 opkg_repository_accessibility_check(void)
 800 {
 801         pkg_src_list_elt_t *iter;
 802         str_list_elt_t *iter1;
 803         str_list_t *src;
 804         int repositories = 0;
 805         int ret = 0;
 806         int err;
 807         char *repo_ptr;
 808         char *stmp;
 809         char *host, *end;
 810
 811         src = str_list_alloc();
 812
 813         list_for_each_entry(iter, &conf->pkg_src_list.head, node) {
 814                 host = strstr(((pkg_src_t *)iter->data)->value, "://") + 3;
 815                 end = index(host, '/');
 816                 if (strstr(((pkg_src_t *) iter->data)->value, "://") && end)
 817                         stmp = xstrndup(((pkg_src_t *) iter->data)->value,
 818                                      end - ((pkg_src_t *) iter->data)->value);
 819                 else
 820                         stmp = xstrdup(((pkg_src_t *) iter->data)->value);
 821
 822                 for (iter1 = str_list_first(src); iter1;
 823                      iter1 = str_list_next(src, iter1)) {
 824                         if (strstr(iter1->data, stmp))
 825                                 break;
 826                 }
 827                 if (iter1)
 828                         continue;
 829
 830                 sprintf_alloc(&repo_ptr, "%s/index.html", stmp);
 831                 free(stmp);
 832
 833                 str_list_append(src, repo_ptr);
 834                 free(repo_ptr);
 835                 repositories++;
 836         }
 837         while (repositories > 0) {
 838                 iter1 = str_list_pop(src);
 839                 repositories--;
 840
 841                 err = opkg_download(iter1->data, "/dev/null", NULL, NULL);
 842 #ifdef HAVE_CURL
 843                 if (!(err == CURLE_OK ||
 844                       err == CURLE_HTTP_RETURNED_ERROR ||
 845                       err == CURLE_FILE_COULDNT_READ_FILE ||
 846                       err == CURLE_REMOTE_FILE_NOT_FOUND ||
 847                       err == CURLE_TFTP_NOTFOUND)) {
 848 #else
 849                 if (!(err == 0)) {
 850 #endif
 851                         ret++;
 852                 }
 853                 str_list_elt_deinit(iter1);
 854         }
 855         free(src);
 856         return ret;
 857 }