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 struct _opkg_t
  37 {
  38   args_t *args;
  39   opkg_conf_t *conf;
  40   opkg_option_t *options;
  41 };
  42
  43 #define opkg_assert(expr) if (!(expr)) { \
  44     printf ("opkg: file %s: line %d (%s): Assertation '%s' failed",\
  45             __FILE__, __LINE__, __PRETTY_FUNCTION__, # expr); abort (); }
  46
  47 #define progress(d, p) d.percentage = p; if (progress_callback) progress_callback (opkg, &d, user_data);
  48 #define SSTRCMP(x,y) (x && y) ? strcmp (x, y) : 0
  49
  50 /** Private Functions ***/
  51
  52 static opkg_package_t*
  53 old_pkg_to_new (pkg_t *old)
  54 {
  55   opkg_package_t *new;
  56
  57   new = opkg_package_new ();
  58
  59 #define sstrdup(x) (x) ? strdup (x) : NULL;
  60
  61   new->name = sstrdup (old->name);
  62   new->version = pkg_version_str_alloc (old);
  63   new->architecture = sstrdup (old->architecture);
  64   if (old->src)
  65     new->repository = sstrdup (old->src->name);
  66   new->description = sstrdup (old->description);
  67   new->tags = sstrdup (old->tags);
  68   new->url = sstrdup (old->url);
  69
  70   new->size = (old->size) ? atoi (old->size) : 0;
  71   new->installed = (old->state_status == SS_INSTALLED);
  72
  73   return new;
  74 }
  75
  76 static int
  77 opkg_configure_packages(opkg_conf_t *conf, char *pkg_name)
  78 {
  79   pkg_vec_t *all;
  80   int i;
  81   pkg_t *pkg;
  82   int r, err = 0;
  83
  84   all = pkg_vec_alloc ();
  85   pkg_hash_fetch_available (&conf->pkg_hash, all);
  86
  87   for (i = 0; i < all->len; i++)
  88   {
  89     pkg = all->pkgs[i];
  90
  91     if (pkg_name && fnmatch (pkg_name, pkg->name, 0))
  92       continue;
  93
  94     if (pkg->state_status == SS_UNPACKED)
  95     {
  96       r = opkg_configure (conf, pkg);
  97       if (r == 0)
  98       {
  99         pkg->state_status = SS_INSTALLED;
 100         pkg->parent->state_status = SS_INSTALLED;
 101         pkg->state_flag &= ~SF_PREFER;
 102       }
 103       else
 104       {
 105         if (!err)
 106           err = r;
 107       }
 108     }
 109   }
 110
 111   pkg_vec_free (all);
 112   return err;
 113 }
 114
 115 struct _curl_cb_data
 116 {
 117   opkg_progress_callback_t cb;
 118   opkg_progress_data_t *progress_data;
 119   opkg_t *opkg;
 120   void *user_data;
 121   int start_range;
 122   int finish_range;
 123 };
 124
 125 int
 126 curl_progress_cb (struct _curl_cb_data *cb_data,
 127                   double t,   /* dltotal */
 128                   double d,   /* dlnow */
 129                   double ultotal,
 130                   double ulnow)
 131 {
 132   int p = (t) ? d * 100 / t : 0;
 133   static int prev = -1;
 134   int progress = 0;
 135
 136   /* prevent the same value being sent twice (can occur due to rounding) */
 137   if (p == prev)
 138     return 0;
 139   prev = p;
 140
 141   if (t < 1)
 142     return 0;
 143
 144   progress = cb_data->start_range + (d / t * ((cb_data->finish_range - cb_data->start_range)));
 145   cb_data->progress_data->percentage = progress;
 146
 147   (cb_data->cb)(cb_data->opkg,
 148                 cb_data->progress_data,
 149                 cb_data->user_data);
 150
 151   return 0;
 152 }
 153
 154
 155 /*** Public API ***/
 156
 157 opkg_package_t *
 158 opkg_package_new ()
 159 {
 160
 161   opkg_package_t *p;
 162
 163   p = malloc (sizeof (opkg_package_t));
 164   memset (p, 0, sizeof (opkg_package_t));
 165
 166   return p;
 167 }
 168
 169 void
 170 opkg_package_free (opkg_package_t *p)
 171 {
 172   free (p->name);
 173   free (p->version);
 174   free (p->architecture);
 175   free (p->description);
 176   free (p->tags);
 177   free (p->url);
 178
 179   free (p);
 180 }
 181
 182 opkg_t *
 183 opkg_new ()
 184 {
 185   opkg_t *opkg;
 186   opkg = malloc (sizeof (opkg_t));
 187
 188   opkg->args = malloc (sizeof (args_t));
 189   args_init (opkg->args);
 190
 191   opkg->conf = malloc (sizeof (opkg_conf_t));
 192   opkg_conf_init (opkg->conf, opkg->args);
 193
 194   opkg_init_options_array (opkg->conf, &opkg->options);
 195   return opkg;
 196 }
 197
 198 void
 199 opkg_free (opkg_t *opkg)
 200 {
 201   opkg_assert (opkg != NULL);
 202
 203   opkg_conf_deinit (opkg->conf);
 204   args_deinit (opkg->args);
 205 }
 206
 207 int
 208 opkg_re_read_config_files (opkg_t *opkg)
 209 {
 210   args_t *a;
 211   opkg_conf_t *c;
 212
 213   opkg_assert (opkg != NULL);
 214
 215   a = opkg->args;
 216   c = opkg->conf;
 217
 218   /* Unfortunatly, the easiest way to re-read the config files right now is to
 219    * throw away opkg->conf and start again */
 220
 221   /* copy the settings we need to keep */
 222   a->autoremove = c->autoremove;
 223   a->force_depends = c->force_depends;
 224   a->force_defaults = c->force_defaults;
 225   a->force_overwrite = c->force_overwrite;
 226   a->force_downgrade = c->force_downgrade;
 227   a->force_reinstall = c->force_reinstall;
 228   a->force_removal_of_dependent_packages = c->force_removal_of_dependent_packages;
 229   a->force_removal_of_essential_packages = c->force_removal_of_essential_packages;
 230   a->nodeps = c->nodeps;
 231   a->noaction = c->noaction;
 232   a->query_all = c->query_all;
 233   a->multiple_providers = c->multiple_providers;
 234   a->verbosity = c->verbosity;
 235
 236   if (c->offline_root)
 237   {
 238     if (a->offline_root) free (a->offline_root);
 239     a->offline_root = strdup (c->offline_root);
 240   }
 241
 242   if (c->offline_root_pre_script_cmd)
 243   {
 244     if (a->offline_root_pre_script_cmd) free (a->offline_root_pre_script_cmd);
 245     a->offline_root_pre_script_cmd = strdup (c->offline_root_pre_script_cmd);
 246   }
 247
 248   if (c->offline_root_post_script_cmd)
 249   {
 250     if (a->offline_root_post_script_cmd) free (a->offline_root_post_script_cmd);
 251     a->offline_root_post_script_cmd = strdup (c->offline_root_post_script_cmd);
 252   }
 253
 254   /* throw away old opkg_conf and start again */
 255   opkg_conf_deinit (opkg->conf);
 256   opkg_conf_init (opkg->conf, opkg->args);
 257
 258   free (opkg->options);
 259   opkg_init_options_array (opkg->conf, &opkg->options);
 260
 261   return 0;
 262 }
 263
 264 void
 265 opkg_get_option (opkg_t *opkg, char *option, void **value)
 266 {
 267   int i = 0;
 268   opkg_option_t *options;
 269
 270   opkg_assert (opkg != NULL);
 271   opkg_assert (option != NULL);
 272   opkg_assert (value != NULL);
 273
 274   options = opkg->options;
 275
 276   /* look up the option
 277    * TODO: this would be much better as a hash table
 278    */
 279   while (options[i].name)
 280   {
 281     if (strcmp (options[i].name, option) != 0)
 282     {
 283       i++;
 284       continue;
 285     }
 286   }
 287
 288   /* get the option */
 289   switch (options[i].type)
 290   {
 291   case OPKG_OPT_TYPE_BOOL:
 292     *((int *) value) = *((int *) options[i].value);
 293     return;
 294
 295   case OPKG_OPT_TYPE_INT:
 296     *((int *) value) = *((int *) options[i].value);
 297     return;
 298
 299   case OPKG_OPT_TYPE_STRING:
 300     *((char **)value) = strdup (options[i].value);
 301     return;
 302   }
 303
 304 }
 305
 306 void
 307 opkg_set_option (opkg_t *opkg, char *option, void *value)
 308 {
 309   int i = 0, found = 0;
 310   opkg_option_t *options;
 311
 312   opkg_assert (opkg != NULL);
 313   opkg_assert (option != NULL);
 314   opkg_assert (value != NULL);
 315
 316   options = opkg->options;
 317
 318   /* look up the option
 319    * TODO: this would be much better as a hash table
 320    */
 321   while (options[i].name)
 322   {
 323     if (strcmp (options[i].name, option) == 0)
 324     {
 325       found = 1;
 326       break;
 327     }
 328     i++;
 329   }
 330
 331   if (!found)
 332   {
 333     /* XXX: Warning: Option not found */
 334     return;
 335   }
 336
 337   /* set the option */
 338   switch (options[i].type)
 339   {
 340   case OPKG_OPT_TYPE_BOOL:
 341     if (*((int *) value) == 0)
 342       *((int *)options[i].value) = 0;
 343     else
 344       *((int *)options[i].value) = 1;
 345     return;
 346
 347   case OPKG_OPT_TYPE_INT:
 348     *((int *) options[i].value) = *((int *) value);
 349     return;
 350
 351   case OPKG_OPT_TYPE_STRING:
 352     *((char **)options[i].value) = strdup (value);
 353     return;
 354   }
 355
 356 }
 357
 358 int
 359 opkg_install_package (opkg_t *opkg, const char *package_name, opkg_progress_callback_t progress_callback, void *user_data)
 360 {
 361   int err;
 362   char *package_id = NULL, *stripped_filename;
 363   opkg_progress_data_t pdata;
 364   pkg_t *old, *new;
 365   pkg_vec_t *deps, *all;
 366   int i, ndepends;
 367   char **unresolved = NULL;
 368
 369   opkg_assert (opkg != NULL);
 370   opkg_assert (package_name != NULL);
 371
 372   /* ... */
 373   pkg_info_preinstall_check (opkg->conf);
 374
 375
 376   /* check to ensure package is not already installed */
 377   old = pkg_hash_fetch_installed_by_name(&opkg->conf->pkg_hash, package_name);
 378   if (old)
 379   {
 380     /* XXX: Error: Package is already installed. */
 381     return OPKG_PACKAGE_ALREADY_INSTALLED;
 382   }
 383
 384   new = pkg_hash_fetch_best_installation_candidate_by_name(opkg->conf, package_name);
 385   if (!new)
 386   {
 387     /* XXX: Error: Could not find package to install */
 388     return OPKG_PACKAGE_NOT_FOUND;
 389   }
 390
 391   new->state_flag |= SF_USER;
 392
 393   pdata.action = OPKG_INSTALL;
 394   pdata.package = old_pkg_to_new (new);
 395
 396   progress (pdata, 0);
 397
 398   /* find dependancies and download them */
 399   deps = pkg_vec_alloc ();
 400   /* this function does not return the original package, so we insert it later */
 401   ndepends = pkg_hash_fetch_unsatisfied_dependencies (opkg->conf, new, deps, &unresolved);
 402   if (unresolved)
 403   {
 404     /* XXX: Error: Could not satisfy dependencies */
 405     pkg_vec_free (deps);
 406     return OPKG_DEPENDANCIES_FAILED;
 407   }
 408
 409   /* insert the package we are installing so that we download it */
 410   pkg_vec_insert (deps, new);
 411
 412   /* download package and dependancies */
 413   for (i = 0; i < deps->len; i++)
 414   {
 415     pkg_t *pkg;
 416     struct _curl_cb_data cb_data;
 417     char *url;
 418
 419     pkg = deps->pkgs[i];
 420     if (pkg->local_filename)
 421       continue;
 422
 423     opkg_package_free (pdata.package);
 424     pdata.package = old_pkg_to_new (pkg);
 425     pdata.action = OPKG_DOWNLOAD;
 426
 427     if (pkg->src == NULL)
 428     {
 429       /* XXX: Error: Package not available from any configured src */
 430       return OPKG_PACKAGE_NOT_AVAILABLE;
 431     }
 432
 433     sprintf_alloc(&url, "%s/%s", pkg->src->value, pkg->filename);
 434
 435     /* Get the filename part, without any directory */
 436     stripped_filename = strrchr(pkg->filename, '/');
 437     if ( ! stripped_filename )
 438         stripped_filename = pkg->filename;
 439
 440     sprintf_alloc(&pkg->local_filename, "%s/%s", opkg->conf->tmp_dir, stripped_filename);
 441
 442     cb_data.cb = progress_callback;
 443     cb_data.progress_data = &pdata;
 444     cb_data.opkg = opkg;
 445     cb_data.user_data = user_data;
 446     /* 75% of "install" progress is for downloading */
 447     cb_data.start_range = 75 * i / deps->len;
 448     cb_data.finish_range = 75 * (i + 1) / deps->len;
 449
 450     err = opkg_download(opkg->conf, url, pkg->local_filename,
 451               (curl_progress_func) curl_progress_cb, &cb_data);
 452     free(url);
 453
 454   }
 455   pkg_vec_free (deps);
 456
 457   /* clear depenacy checked marks, left by pkg_hash_fetch_unsatisfied_dependencies */
 458   all = pkg_vec_alloc ();
 459   pkg_hash_fetch_available (&opkg->conf->pkg_hash, all);
 460   for (i = 0; i < all->len; i++)
 461   {
 462     all->pkgs[i]->parent->dependencies_checked = 0;
 463   }
 464   pkg_vec_free (all);
 465
 466
 467   /* 75% of "install" progress is for downloading */
 468   opkg_package_free (pdata.package);
 469   pdata.package = old_pkg_to_new (new);
 470   pdata.action = OPKG_INSTALL;
 471   progress (pdata, 75);
 472
 473   if (!package_id)
 474     package_id = strdup (package_name);
 475
 476   /* unpack the package */
 477   err = opkg_install_pkg(opkg->conf, new, 0);
 478
 479   if (err)
 480     return err;
 481
 482   progress (pdata, 75);
 483
 484   /* run configure scripts, etc. */
 485   err = opkg_configure_packages (opkg->conf, NULL);
 486   if (err)
 487     return err;
 488
 489   /* write out status files and file lists */
 490   opkg_conf_write_status_files (opkg->conf);
 491   pkg_write_changed_filelists (opkg->conf);
 492
 493   progress (pdata, 100);
 494   opkg_package_free (pdata.package);
 495   return 0;
 496 }
 497
 498 int
 499 opkg_remove_package (opkg_t *opkg, const char *package_name, opkg_progress_callback_t progress_callback, void *user_data)
 500 {
 501   pkg_t *pkg = NULL;
 502   pkg_t *pkg_to_remove;
 503   opkg_progress_data_t pdata;
 504
 505   opkg_assert (opkg != NULL);
 506   opkg_assert (package_name != NULL);
 507
 508
 509
 510   pkg_info_preinstall_check (opkg->conf);
 511
 512
 513   pkg = pkg_hash_fetch_installed_by_name (&opkg->conf->pkg_hash, package_name);
 514
 515   if (pkg == NULL)
 516   {
 517     /* XXX: Error: Package not installed. */
 518     return OPKG_PACKAGE_NOT_INSTALLED;
 519   }
 520
 521   pdata.action = OPKG_REMOVE;
 522   pdata.package = old_pkg_to_new (pkg);
 523   progress (pdata, 0);
 524
 525
 526   if (pkg->state_status == SS_NOT_INSTALLED)
 527   {
 528     /* XXX:  Error: Package seems to be not installed (STATUS = NOT_INSTALLED). */
 529     return OPKG_PACKAGE_NOT_INSTALLED;
 530   }
 531   progress (pdata, 25);
 532
 533   if (opkg->conf->restrict_to_default_dest)
 534   {
 535     pkg_to_remove = pkg_hash_fetch_installed_by_name_dest (&opkg->conf->pkg_hash,
 536                                                            pkg->name,
 537                                                            opkg->conf->default_dest);
 538   }
 539   else
 540   {
 541     pkg_to_remove = pkg_hash_fetch_installed_by_name (&opkg->conf->pkg_hash, pkg->name );
 542   }
 543
 544
 545   progress (pdata, 75);
 546
 547   opkg_remove_pkg (opkg->conf, pkg_to_remove, 0);
 548
 549   /* write out status files and file lists */
 550   opkg_conf_write_status_files (opkg->conf);
 551   pkg_write_changed_filelists (opkg->conf);
 552
 553
 554   progress (pdata, 100);
 555   opkg_package_free (pdata.package);
 556   return 0;
 557 }
 558
 559 int
 560 opkg_upgrade_package (opkg_t *opkg, const char *package_name, opkg_progress_callback_t progress_callback, void *user_data)
 561 {
 562   pkg_t *pkg;
 563   opkg_progress_data_t pdata;
 564
 565
 566
 567   opkg_assert (opkg != NULL);
 568   opkg_assert (package_name != NULL);
 569
 570   pkg_info_preinstall_check (opkg->conf);
 571
 572   if (opkg->conf->restrict_to_default_dest)
 573   {
 574     pkg = pkg_hash_fetch_installed_by_name_dest (&opkg->conf->pkg_hash,
 575                                                  package_name,
 576                                                  opkg->conf->default_dest);
 577     if (pkg == NULL)
 578     {
 579       /* XXX: Error: Package not installed in default_dest */
 580       return OPKG_PACKAGE_NOT_INSTALLED;
 581     }
 582   }
 583   else
 584   {
 585     pkg = pkg_hash_fetch_installed_by_name (&opkg->conf->pkg_hash,
 586                                             package_name);
 587   }
 588
 589   if (!pkg)
 590   {
 591     /* XXX: Error: Package not installed */
 592     return OPKG_PACKAGE_NOT_INSTALLED;
 593   }
 594
 595   pdata.action = OPKG_INSTALL;
 596   pdata.package = old_pkg_to_new (pkg);
 597   progress (pdata, 0);
 598
 599   opkg_upgrade_pkg (opkg->conf, pkg);
 600   progress (pdata, 75);
 601
 602   opkg_configure_packages (opkg->conf, NULL);
 603   progress (pdata, 100);
 604   opkg_package_free (pdata.package);
 605   return 0;
 606 }
 607
 608 int
 609 opkg_upgrade_all (opkg_t *opkg, opkg_progress_callback_t progress_callback, void *user_data)
 610 {
 611   pkg_vec_t *installed;
 612   int err = 0;
 613   int i;
 614   pkg_t *pkg;
 615   opkg_progress_data_t pdata;
 616
 617   pdata.action = OPKG_INSTALL;
 618   pdata.package = NULL;
 619
 620   opkg_assert (opkg != NULL);
 621   progress (pdata, 0);
 622
 623   installed = pkg_vec_alloc ();
 624   pkg_info_preinstall_check (opkg->conf);
 625
 626   pkg_hash_fetch_all_installed (&opkg->conf->pkg_hash, installed);
 627   for (i = 0; i < installed->len; i++)
 628   {
 629     pkg = installed->pkgs[i];
 630
 631     pdata.package = old_pkg_to_new (pkg);
 632     progress (pdata, 99 * i / installed->len);
 633     opkg_package_free (pdata.package);
 634
 635     err += opkg_upgrade_pkg (opkg->conf, pkg);
 636   }
 637   pkg_vec_free (installed);
 638
 639   if (err)
 640     return 1;
 641
 642   err = opkg_configure_packages (opkg->conf, NULL);
 643   if (err)
 644     return 1;
 645
 646   pdata.package = NULL;
 647   progress (pdata, 100);
 648   return 0;
 649 }
 650
 651 int
 652 opkg_update_package_lists (opkg_t *opkg, opkg_progress_callback_t progress_callback, void *user_data)
 653 {
 654   char *tmp;
 655   int err, result = 0;
 656   char *lists_dir;
 657   pkg_src_list_elt_t *iter;
 658   pkg_src_t *src;
 659   int sources_list_count, sources_done;
 660   opkg_progress_data_t pdata;
 661
 662   opkg_assert (opkg != NULL);
 663
 664   pdata.action = OPKG_DOWNLOAD;
 665   pdata.package = NULL;
 666   progress (pdata, 0);
 667
 668   sprintf_alloc (&lists_dir, "%s",
 669                  (opkg->conf->restrict_to_default_dest)
 670                  ? opkg->conf->default_dest->lists_dir
 671                  : opkg->conf->lists_dir);
 672
 673   if (!file_is_dir (lists_dir))
 674   {
 675     if (file_exists (lists_dir))
 676     {
 677       /* XXX: Error: file exists but is not a directory */
 678       free (lists_dir);
 679       return 1;
 680     }
 681
 682     err = file_mkdir_hier (lists_dir, 0755);
 683     if (err)
 684     {
 685       /* XXX: Error: failed to create directory */
 686       free (lists_dir);
 687       return 1;
 688     }
 689   }
 690
 691   tmp = strdup ("/tmp/opkg.XXXXXX");
 692
 693   if (mkdtemp (tmp) == NULL)
 694   {
 695     /* XXX: Error: could not create temporary file name */
 696     free (lists_dir);
 697     free (tmp);
 698     return 1;
 699   }
 700
 701   /* cout the number of sources so we can give some progress updates */
 702   sources_list_count = 0;
 703   sources_done = 0;
 704   iter = opkg->conf->pkg_src_list.head;
 705   while (iter)
 706   {
 707     sources_list_count++;
 708     iter = iter->next;
 709   }
 710
 711   for (iter = opkg->conf->pkg_src_list.head; iter; iter = iter->next)
 712   {
 713     char *url, *list_file_name;
 714
 715     src = iter->data;
 716
 717     if (src->extra_data)  /* debian style? */
 718       sprintf_alloc (&url, "%s/%s/%s", src->value, src->extra_data,
 719                      src->gzip ? "Packages.gz" : "Packages");
 720     else
 721       sprintf_alloc (&url, "%s/%s", src->value, src->gzip ? "Packages.gz" : "Packages");
 722
 723     sprintf_alloc (&list_file_name, "%s/%s", lists_dir, src->name);
 724     if (src->gzip)
 725     {
 726       char *tmp_file_name;
 727       FILE *in, *out;
 728       struct _curl_cb_data cb_data;
 729
 730       sprintf_alloc (&tmp_file_name, "%s/%s.gz", tmp, src->name);
 731
 732       /* XXX: Note: downloading url */
 733
 734       cb_data.cb = progress_callback;
 735       cb_data.progress_data = &pdata;
 736       cb_data.opkg = opkg;
 737       cb_data.user_data = user_data;
 738       cb_data.start_range = 100 * sources_done / sources_list_count;
 739       cb_data.finish_range = 100 * (sources_done + 1) / sources_list_count;
 740
 741       err = opkg_download (opkg->conf, url, tmp_file_name, (curl_progress_func) curl_progress_cb, &cb_data);
 742
 743       if (err == 0)
 744       {
 745         /* XXX: Note: Inflating downloaded file */
 746         in = fopen (tmp_file_name, "r");
 747         out = fopen (list_file_name, "w");
 748         if (in && out)
 749           unzip (in, out);
 750         else
 751           err = 1;
 752         if (in)
 753           fclose (in);
 754         if (out)
 755           fclose (out);
 756         unlink (tmp_file_name);
 757       }
 758     }
 759     else
 760       err = opkg_download (opkg->conf, url, list_file_name, NULL, NULL);
 761
 762     if (err)
 763     {
 764       /* XXX: Error: download error */
 765       result = OPKG_DOWNLOAD_FAILED;
 766     }
 767     free (url);
 768
 769 #ifdef HAVE_GPGME
 770     /* download detached signitures to verify the package lists */
 771     /* get the url for the sig file */
 772     if (src->extra_data)  /* debian style? */
 773       sprintf_alloc (&url, "%s/%s/%s", src->value, src->extra_data,
 774                      "Packages.sig");
 775     else
 776       sprintf_alloc (&url, "%s/%s", src->value, "Packages.sig");
 777
 778     /* create temporary file for it */
 779     char *tmp_file_name;
 780
 781     sprintf_alloc (&tmp_file_name, "%s/%s", tmp, "Packages.sig");
 782
 783     err = opkg_download (opkg->conf, url, tmp_file_name, NULL, NULL);
 784     if (err)
 785     {
 786       /* XXX: Warning: Download failed */
 787     }
 788     else
 789     {
 790       int err;
 791       err = opkg_verify_file (opkg->conf, list_file_name, tmp_file_name);
 792       if (err == 0)
 793       {
 794         /* XXX: Notice: Signature check passed */
 795       }
 796       else
 797       {
 798         /* XXX: Warning: Signature check failed */
 799       }
 800     }
 801     unlink (tmp_file_name);
 802     free (tmp_file_name);
 803     free (url);
 804 #else
 805     /* XXX: Note: Signiture check for %s skipped because GPG support was not
 806      * enabled in this build
 807      */
 808 #endif
 809     free (list_file_name);
 810
 811     sources_done++;
 812     progress (pdata, 100 * sources_done / sources_list_count);
 813   }
 814
 815   rmdir (tmp);
 816   free (tmp);
 817   free (lists_dir);
 818
 819   /* Now re-read the package lists to update package hash tables. */
 820   opkg_re_read_config_files (opkg);
 821
 822   return result;
 823 }
 824
 825
 826 int
 827 opkg_list_packages (opkg_t *opkg, opkg_package_callback_t callback, void *user_data)
 828 {
 829   pkg_vec_t *all;
 830   int i;
 831
 832   opkg_assert (opkg);
 833   opkg_assert (callback);
 834
 835   all = pkg_vec_alloc ();
 836   pkg_hash_fetch_available (&opkg->conf->pkg_hash, all);
 837   for (i = 0; i < all->len; i++)
 838   {
 839     pkg_t *pkg;
 840     opkg_package_t *package;
 841
 842     pkg = all->pkgs[i];
 843
 844     package = old_pkg_to_new (pkg);
 845     callback (opkg, package, user_data);
 846   }
 847
 848   pkg_vec_free (all);
 849
 850   return 0;
 851 }
 852
 853 int
 854 opkg_list_upgradable_packages (opkg_t *opkg, opkg_package_callback_t callback, void *user_data)
 855 {
 856   pkg_vec_t *all;
 857   int i;
 858
 859   opkg_assert (opkg);
 860   opkg_assert (callback);
 861
 862   all = pkg_vec_alloc ();
 863   pkg_hash_fetch_available (&opkg->conf->pkg_hash, all);
 864   for (i = 0; i < all->len; i++)
 865   {
 866     pkg_t *old, *new;
 867     int cmp;
 868     opkg_package_t *package;
 869
 870     old = all->pkgs[i];
 871
 872     if (old->state_status != SS_INSTALLED)
 873       continue;
 874
 875     new = pkg_hash_fetch_best_installation_candidate_by_name(opkg->conf, old->name);
 876     if (new == NULL) {
 877       /* XXX: Notice: Assuming locally install package is up to date */
 878       continue;
 879     }
 880
 881     cmp = pkg_compare_versions(old, new);
 882
 883     if (cmp < 0)
 884     {
 885       package = old_pkg_to_new (new);
 886       callback (opkg, package, user_data);
 887     }
 888   }
 889
 890   pkg_vec_free (all);
 891
 892   return 0;
 893 }
 894
 895 opkg_package_t*
 896 opkg_find_package (opkg_t *opkg, const char *name, const char *ver, const char *arch, const char *repo)
 897 {
 898   pkg_vec_t *all;
 899   opkg_package_t *package = NULL;
 900   int i;
 901 #define sstrcmp(x,y) (x && y) ? strcmp (x, y) : 0
 902
 903   opkg_assert (opkg);
 904
 905   all = pkg_vec_alloc ();
 906   pkg_hash_fetch_available (&opkg->conf->pkg_hash, all);
 907   for (i = 0; i < all->len; i++)
 908   {
 909     pkg_t *pkg;
 910     char *pkgv;
 911
 912     pkg = all->pkgs[i];
 913
 914     /* check name */
 915     if (sstrcmp (pkg->name, name))
 916       continue;
 917
 918     /* check version */
 919     pkgv = pkg_version_str_alloc (pkg);
 920     if (sstrcmp (pkgv, ver))
 921     {
 922       free (pkgv);
 923       continue;
 924     }
 925     free (pkgv);
 926
 927     /* check architecture */
 928     if (arch)
 929     {
 930       if (sstrcmp (pkg->architecture, arch))
 931         continue;
 932     }
 933
 934     /* check repository */
 935     if (repo)
 936     {
 937       if (sstrcmp (pkg->src->name, repo))
 938           continue;
 939     }
 940
 941     /* match found */
 942     package = old_pkg_to_new (pkg);
 943     break;
 944   }
 945
 946   pkg_vec_free (all);
 947
 948   return package;
 949 }