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   free (p->repository);
 179
 180   free (p);
 181 }
 182
 183 opkg_t *
 184 opkg_new ()
 185 {
 186   opkg_t *opkg;
 187   opkg = malloc (sizeof (opkg_t));
 188
 189   opkg->args = malloc (sizeof (args_t));
 190   args_init (opkg->args);
 191
 192   opkg->conf = malloc (sizeof (opkg_conf_t));
 193   opkg_conf_init (opkg->conf, opkg->args);
 194
 195   opkg_init_options_array (opkg->conf, &opkg->options);
 196   return opkg;
 197 }
 198
 199 void
 200 opkg_free (opkg_t *opkg)
 201 {
 202   opkg_assert (opkg != NULL);
 203
 204   opkg_conf_deinit (opkg->conf);
 205   args_deinit (opkg->args);
 206   free (opkg->options);
 207   free (opkg->args);
 208   free (opkg->conf);
 209   free (opkg);
 210 }
 211
 212 int
 213 opkg_re_read_config_files (opkg_t *opkg)
 214 {
 215   args_t *a;
 216   opkg_conf_t *c;
 217
 218   opkg_assert (opkg != NULL);
 219
 220   a = opkg->args;
 221   c = opkg->conf;
 222
 223   /* Unfortunatly, the easiest way to re-read the config files right now is to
 224    * throw away opkg->conf and start again */
 225
 226   /* copy the settings we need to keep */
 227   a->autoremove = c->autoremove;
 228   a->force_depends = c->force_depends;
 229   a->force_defaults = c->force_defaults;
 230   a->force_overwrite = c->force_overwrite;
 231   a->force_downgrade = c->force_downgrade;
 232   a->force_reinstall = c->force_reinstall;
 233   a->force_removal_of_dependent_packages = c->force_removal_of_dependent_packages;
 234   a->force_removal_of_essential_packages = c->force_removal_of_essential_packages;
 235   a->nodeps = c->nodeps;
 236   a->noaction = c->noaction;
 237   a->query_all = c->query_all;
 238   a->multiple_providers = c->multiple_providers;
 239   a->verbosity = c->verbosity;
 240
 241   if (c->offline_root)
 242   {
 243     if (a->offline_root) free (a->offline_root);
 244     a->offline_root = strdup (c->offline_root);
 245   }
 246
 247   if (c->offline_root_pre_script_cmd)
 248   {
 249     if (a->offline_root_pre_script_cmd) free (a->offline_root_pre_script_cmd);
 250     a->offline_root_pre_script_cmd = strdup (c->offline_root_pre_script_cmd);
 251   }
 252
 253   if (c->offline_root_post_script_cmd)
 254   {
 255     if (a->offline_root_post_script_cmd) free (a->offline_root_post_script_cmd);
 256     a->offline_root_post_script_cmd = strdup (c->offline_root_post_script_cmd);
 257   }
 258
 259   /* throw away old opkg_conf and start again */
 260   opkg_conf_deinit (opkg->conf);
 261   opkg_conf_init (opkg->conf, opkg->args);
 262
 263   free (opkg->options);
 264   opkg_init_options_array (opkg->conf, &opkg->options);
 265
 266   return 0;
 267 }
 268
 269 void
 270 opkg_get_option (opkg_t *opkg, char *option, void **value)
 271 {
 272   int i = 0;
 273   opkg_option_t *options;
 274
 275   opkg_assert (opkg != NULL);
 276   opkg_assert (option != NULL);
 277   opkg_assert (value != NULL);
 278
 279   options = opkg->options;
 280
 281   /* look up the option
 282    * TODO: this would be much better as a hash table
 283    */
 284   while (options[i].name)
 285   {
 286     if (strcmp (options[i].name, option) != 0)
 287     {
 288       i++;
 289       continue;
 290     }
 291   }
 292
 293   /* get the option */
 294   switch (options[i].type)
 295   {
 296   case OPKG_OPT_TYPE_BOOL:
 297     *((int *) value) = *((int *) options[i].value);
 298     return;
 299
 300   case OPKG_OPT_TYPE_INT:
 301     *((int *) value) = *((int *) options[i].value);
 302     return;
 303
 304   case OPKG_OPT_TYPE_STRING:
 305     *((char **)value) = strdup (options[i].value);
 306     return;
 307   }
 308
 309 }
 310
 311 void
 312 opkg_set_option (opkg_t *opkg, char *option, void *value)
 313 {
 314   int i = 0, found = 0;
 315   opkg_option_t *options;
 316
 317   opkg_assert (opkg != NULL);
 318   opkg_assert (option != NULL);
 319   opkg_assert (value != NULL);
 320
 321   options = opkg->options;
 322
 323   /* look up the option
 324    * TODO: this would be much better as a hash table
 325    */
 326   while (options[i].name)
 327   {
 328     if (strcmp (options[i].name, option) == 0)
 329     {
 330       found = 1;
 331       break;
 332     }
 333     i++;
 334   }
 335
 336   if (!found)
 337   {
 338     /* XXX: Warning: Option not found */
 339     return;
 340   }
 341
 342   /* set the option */
 343   switch (options[i].type)
 344   {
 345   case OPKG_OPT_TYPE_BOOL:
 346     if (*((int *) value) == 0)
 347       *((int *)options[i].value) = 0;
 348     else
 349       *((int *)options[i].value) = 1;
 350     return;
 351
 352   case OPKG_OPT_TYPE_INT:
 353     *((int *) options[i].value) = *((int *) value);
 354     return;
 355
 356   case OPKG_OPT_TYPE_STRING:
 357     *((char **)options[i].value) = strdup (value);
 358     return;
 359   }
 360
 361 }
 362
 363 int
 364 opkg_install_package (opkg_t *opkg, const char *package_name, opkg_progress_callback_t progress_callback, void *user_data)
 365 {
 366   int err;
 367   char *stripped_filename;
 368   opkg_progress_data_t pdata;
 369   pkg_t *old, *new;
 370   pkg_vec_t *deps, *all;
 371   int i, ndepends;
 372   char **unresolved = NULL;
 373
 374   opkg_assert (opkg != NULL);
 375   opkg_assert (package_name != NULL);
 376
 377   /* ... */
 378   pkg_info_preinstall_check (opkg->conf);
 379
 380
 381   /* check to ensure package is not already installed */
 382   old = pkg_hash_fetch_installed_by_name(&opkg->conf->pkg_hash, package_name);
 383   if (old)
 384   {
 385     /* XXX: Error: Package is already installed. */
 386     return OPKG_PACKAGE_ALREADY_INSTALLED;
 387   }
 388
 389   new = pkg_hash_fetch_best_installation_candidate_by_name(opkg->conf, package_name);
 390   if (!new)
 391   {
 392     /* XXX: Error: Could not find package to install */
 393     return OPKG_PACKAGE_NOT_FOUND;
 394   }
 395
 396   new->state_flag |= SF_USER;
 397
 398   pdata.action = OPKG_INSTALL;
 399   pdata.package = old_pkg_to_new (new);
 400
 401   progress (pdata, 0);
 402
 403   /* find dependancies and download them */
 404   deps = pkg_vec_alloc ();
 405   /* this function does not return the original package, so we insert it later */
 406   ndepends = pkg_hash_fetch_unsatisfied_dependencies (opkg->conf, new, deps, &unresolved);
 407   if (unresolved)
 408   {
 409     /* XXX: Error: Could not satisfy dependencies */
 410     pkg_vec_free (deps);
 411     return OPKG_DEPENDANCIES_FAILED;
 412   }
 413
 414   /* insert the package we are installing so that we download it */
 415   pkg_vec_insert (deps, new);
 416
 417   /* download package and dependancies */
 418   for (i = 0; i < deps->len; i++)
 419   {
 420     pkg_t *pkg;
 421     struct _curl_cb_data cb_data;
 422     char *url;
 423
 424     pkg = deps->pkgs[i];
 425     if (pkg->local_filename)
 426       continue;
 427
 428     opkg_package_free (pdata.package);
 429     pdata.package = old_pkg_to_new (pkg);
 430     pdata.action = OPKG_DOWNLOAD;
 431
 432     if (pkg->src == NULL)
 433     {
 434       /* XXX: Error: Package not available from any configured src */
 435       return OPKG_PACKAGE_NOT_AVAILABLE;
 436     }
 437
 438     sprintf_alloc(&url, "%s/%s", pkg->src->value, pkg->filename);
 439
 440     /* Get the filename part, without any directory */
 441     stripped_filename = strrchr(pkg->filename, '/');
 442     if ( ! stripped_filename )
 443         stripped_filename = pkg->filename;
 444
 445     sprintf_alloc(&pkg->local_filename, "%s/%s", opkg->conf->tmp_dir, stripped_filename);
 446
 447     cb_data.cb = progress_callback;
 448     cb_data.progress_data = &pdata;
 449     cb_data.opkg = opkg;
 450     cb_data.user_data = user_data;
 451     /* 75% of "install" progress is for downloading */
 452     cb_data.start_range = 75 * i / deps->len;
 453     cb_data.finish_range = 75 * (i + 1) / deps->len;
 454
 455     err = opkg_download(opkg->conf, url, pkg->local_filename,
 456               (curl_progress_func) curl_progress_cb, &cb_data);
 457     free(url);
 458
 459   }
 460   pkg_vec_free (deps);
 461
 462   /* clear depenacy checked marks, left by pkg_hash_fetch_unsatisfied_dependencies */
 463   all = pkg_vec_alloc ();
 464   pkg_hash_fetch_available (&opkg->conf->pkg_hash, all);
 465   for (i = 0; i < all->len; i++)
 466   {
 467     all->pkgs[i]->parent->dependencies_checked = 0;
 468   }
 469   pkg_vec_free (all);
 470
 471
 472   /* 75% of "install" progress is for downloading */
 473   opkg_package_free (pdata.package);
 474   pdata.package = old_pkg_to_new (new);
 475   pdata.action = OPKG_INSTALL;
 476   progress (pdata, 75);
 477
 478   /* unpack the package */
 479   err = opkg_install_pkg(opkg->conf, new, 0);
 480
 481   if (err)
 482     return err;
 483
 484   progress (pdata, 75);
 485
 486   /* run configure scripts, etc. */
 487   err = opkg_configure_packages (opkg->conf, NULL);
 488   if (err)
 489     return err;
 490
 491   /* write out status files and file lists */
 492   opkg_conf_write_status_files (opkg->conf);
 493   pkg_write_changed_filelists (opkg->conf);
 494
 495   progress (pdata, 100);
 496   opkg_package_free (pdata.package);
 497   return 0;
 498 }
 499
 500 int
 501 opkg_remove_package (opkg_t *opkg, const char *package_name, opkg_progress_callback_t progress_callback, void *user_data)
 502 {
 503   pkg_t *pkg = NULL;
 504   pkg_t *pkg_to_remove;
 505   opkg_progress_data_t pdata;
 506
 507   opkg_assert (opkg != NULL);
 508   opkg_assert (package_name != NULL);
 509
 510
 511
 512   pkg_info_preinstall_check (opkg->conf);
 513
 514
 515   pkg = pkg_hash_fetch_installed_by_name (&opkg->conf->pkg_hash, package_name);
 516
 517   if (pkg == NULL)
 518   {
 519     /* XXX: Error: Package not installed. */
 520     return OPKG_PACKAGE_NOT_INSTALLED;
 521   }
 522
 523   pdata.action = OPKG_REMOVE;
 524   pdata.package = old_pkg_to_new (pkg);
 525   progress (pdata, 0);
 526
 527
 528   if (pkg->state_status == SS_NOT_INSTALLED)
 529   {
 530     /* XXX:  Error: Package seems to be not installed (STATUS = NOT_INSTALLED). */
 531     return OPKG_PACKAGE_NOT_INSTALLED;
 532   }
 533   progress (pdata, 25);
 534
 535   if (opkg->conf->restrict_to_default_dest)
 536   {
 537     pkg_to_remove = pkg_hash_fetch_installed_by_name_dest (&opkg->conf->pkg_hash,
 538                                                            pkg->name,
 539                                                            opkg->conf->default_dest);
 540   }
 541   else
 542   {
 543     pkg_to_remove = pkg_hash_fetch_installed_by_name (&opkg->conf->pkg_hash, pkg->name );
 544   }
 545
 546
 547   progress (pdata, 75);
 548
 549   opkg_remove_pkg (opkg->conf, pkg_to_remove, 0);
 550
 551   /* write out status files and file lists */
 552   opkg_conf_write_status_files (opkg->conf);
 553   pkg_write_changed_filelists (opkg->conf);
 554
 555
 556   progress (pdata, 100);
 557   opkg_package_free (pdata.package);
 558   return 0;
 559 }
 560
 561 int
 562 opkg_upgrade_package (opkg_t *opkg, const char *package_name, opkg_progress_callback_t progress_callback, void *user_data)
 563 {
 564   pkg_t *pkg;
 565   opkg_progress_data_t pdata;
 566
 567
 568
 569   opkg_assert (opkg != NULL);
 570   opkg_assert (package_name != NULL);
 571
 572   pkg_info_preinstall_check (opkg->conf);
 573
 574   if (opkg->conf->restrict_to_default_dest)
 575   {
 576     pkg = pkg_hash_fetch_installed_by_name_dest (&opkg->conf->pkg_hash,
 577                                                  package_name,
 578                                                  opkg->conf->default_dest);
 579     if (pkg == NULL)
 580     {
 581       /* XXX: Error: Package not installed in default_dest */
 582       return OPKG_PACKAGE_NOT_INSTALLED;
 583     }
 584   }
 585   else
 586   {
 587     pkg = pkg_hash_fetch_installed_by_name (&opkg->conf->pkg_hash,
 588                                             package_name);
 589   }
 590
 591   if (!pkg)
 592   {
 593     /* XXX: Error: Package not installed */
 594     return OPKG_PACKAGE_NOT_INSTALLED;
 595   }
 596
 597   pdata.action = OPKG_INSTALL;
 598   pdata.package = old_pkg_to_new (pkg);
 599   progress (pdata, 0);
 600
 601   opkg_upgrade_pkg (opkg->conf, pkg);
 602   progress (pdata, 75);
 603
 604   opkg_configure_packages (opkg->conf, NULL);
 605   progress (pdata, 100);
 606   opkg_package_free (pdata.package);
 607   return 0;
 608 }
 609
 610 int
 611 opkg_upgrade_all (opkg_t *opkg, opkg_progress_callback_t progress_callback, void *user_data)
 612 {
 613   pkg_vec_t *installed;
 614   int err = 0;
 615   int i;
 616   pkg_t *pkg;
 617   opkg_progress_data_t pdata;
 618
 619   pdata.action = OPKG_INSTALL;
 620   pdata.package = NULL;
 621
 622   opkg_assert (opkg != NULL);
 623   progress (pdata, 0);
 624
 625   installed = pkg_vec_alloc ();
 626   pkg_info_preinstall_check (opkg->conf);
 627
 628   pkg_hash_fetch_all_installed (&opkg->conf->pkg_hash, installed);
 629   for (i = 0; i < installed->len; i++)
 630   {
 631     pkg = installed->pkgs[i];
 632
 633     pdata.package = old_pkg_to_new (pkg);
 634     progress (pdata, 99 * i / installed->len);
 635     opkg_package_free (pdata.package);
 636
 637     err += opkg_upgrade_pkg (opkg->conf, pkg);
 638   }
 639   pkg_vec_free (installed);
 640
 641   if (err)
 642     return 1;
 643
 644   err = opkg_configure_packages (opkg->conf, NULL);
 645   if (err)
 646     return 1;
 647
 648   pdata.package = NULL;
 649   progress (pdata, 100);
 650   return 0;
 651 }
 652
 653 int
 654 opkg_update_package_lists (opkg_t *opkg, opkg_progress_callback_t progress_callback, void *user_data)
 655 {
 656   char *tmp;
 657   int err, result = 0;
 658   char *lists_dir;
 659   pkg_src_list_elt_t *iter;
 660   pkg_src_t *src;
 661   int sources_list_count, sources_done;
 662   opkg_progress_data_t pdata;
 663   char *tmp_file_name = NULL;
 664
 665   opkg_assert (opkg != NULL);
 666
 667   pdata.action = OPKG_DOWNLOAD;
 668   pdata.package = NULL;
 669   progress (pdata, 0);
 670
 671   sprintf_alloc (&lists_dir, "%s",
 672                  (opkg->conf->restrict_to_default_dest)
 673                  ? opkg->conf->default_dest->lists_dir
 674                  : opkg->conf->lists_dir);
 675
 676   if (!file_is_dir (lists_dir))
 677   {
 678     if (file_exists (lists_dir))
 679     {
 680       /* XXX: Error: file exists but is not a directory */
 681       free (lists_dir);
 682       return 1;
 683     }
 684
 685     err = file_mkdir_hier (lists_dir, 0755);
 686     if (err)
 687     {
 688       /* XXX: Error: failed to create directory */
 689       free (lists_dir);
 690       return 1;
 691     }
 692   }
 693
 694   tmp = strdup ("/tmp/opkg.XXXXXX");
 695
 696   if (mkdtemp (tmp) == NULL)
 697   {
 698     /* XXX: Error: could not create temporary file name */
 699     free (lists_dir);
 700     free (tmp);
 701     return 1;
 702   }
 703
 704   /* cout the number of sources so we can give some progress updates */
 705   sources_list_count = 0;
 706   sources_done = 0;
 707   iter = opkg->conf->pkg_src_list.head;
 708   while (iter)
 709   {
 710     sources_list_count++;
 711     iter = iter->next;
 712   }
 713
 714   for (iter = opkg->conf->pkg_src_list.head; iter; iter = iter->next)
 715   {
 716     char *url, *list_file_name;
 717
 718     src = iter->data;
 719
 720     if (src->extra_data)  /* debian style? */
 721       sprintf_alloc (&url, "%s/%s/%s", src->value, src->extra_data,
 722                      src->gzip ? "Packages.gz" : "Packages");
 723     else
 724       sprintf_alloc (&url, "%s/%s", src->value, src->gzip ? "Packages.gz" : "Packages");
 725
 726     sprintf_alloc (&list_file_name, "%s/%s", lists_dir, src->name);
 727     if (src->gzip)
 728     {
 729       FILE *in, *out;
 730       struct _curl_cb_data cb_data;
 731
 732       sprintf_alloc (&tmp_file_name, "%s/%s.gz", tmp, src->name);
 733
 734       /* XXX: Note: downloading url */
 735
 736       cb_data.cb = progress_callback;
 737       cb_data.progress_data = &pdata;
 738       cb_data.opkg = opkg;
 739       cb_data.user_data = user_data;
 740       cb_data.start_range = 100 * sources_done / sources_list_count;
 741       cb_data.finish_range = 100 * (sources_done + 1) / sources_list_count;
 742
 743       err = opkg_download (opkg->conf, url, tmp_file_name, (curl_progress_func) curl_progress_cb, &cb_data);
 744
 745       if (err == 0)
 746       {
 747         /* XXX: Note: Inflating downloaded file */
 748         in = fopen (tmp_file_name, "r");
 749         out = fopen (list_file_name, "w");
 750         if (in && out)
 751           unzip (in, out);
 752         else
 753           err = 1;
 754         if (in)
 755           fclose (in);
 756         if (out)
 757           fclose (out);
 758         unlink (tmp_file_name);
 759       }
 760     }
 761     else
 762       err = opkg_download (opkg->conf, url, list_file_name, NULL, NULL);
 763     free (tmp_file_name);
 764
 765     if (err)
 766     {
 767       /* XXX: Error: download error */
 768       result = OPKG_DOWNLOAD_FAILED;
 769     }
 770     free (url);
 771
 772 #ifdef HAVE_GPGME
 773     /* download detached signitures to verify the package lists */
 774     /* get the url for the sig file */
 775     if (src->extra_data)  /* debian style? */
 776       sprintf_alloc (&url, "%s/%s/%s", src->value, src->extra_data,
 777                      "Packages.sig");
 778     else
 779       sprintf_alloc (&url, "%s/%s", src->value, "Packages.sig");
 780
 781     /* create temporary file for it */
 782     sprintf_alloc (&tmp_file_name, "%s/%s", tmp, "Packages.sig");
 783
 784     err = opkg_download (opkg->conf, url, tmp_file_name, NULL, NULL);
 785     if (err)
 786     {
 787       /* XXX: Warning: Download failed */
 788     }
 789     else
 790     {
 791       int err;
 792       err = opkg_verify_file (opkg->conf, list_file_name, tmp_file_name);
 793       if (err == 0)
 794       {
 795         /* XXX: Notice: Signature check passed */
 796       }
 797       else
 798       {
 799         /* XXX: Warning: Signature check failed */
 800       }
 801     }
 802     unlink (tmp_file_name);
 803     free (tmp_file_name);
 804     free (url);
 805 #else
 806     /* XXX: Note: Signiture check for %s skipped because GPG support was not
 807      * enabled in this build
 808      */
 809 #endif
 810     free (list_file_name);
 811
 812     sources_done++;
 813     progress (pdata, 100 * sources_done / sources_list_count);
 814   }
 815
 816   rmdir (tmp);
 817   free (tmp);
 818   free (lists_dir);
 819
 820   /* Now re-read the package lists to update package hash tables. */
 821   opkg_re_read_config_files (opkg);
 822
 823   return result;
 824 }
 825
 826
 827 int
 828 opkg_list_packages (opkg_t *opkg, opkg_package_callback_t callback, void *user_data)
 829 {
 830   pkg_vec_t *all;
 831   int i;
 832
 833   opkg_assert (opkg);
 834   opkg_assert (callback);
 835
 836   all = pkg_vec_alloc ();
 837   pkg_hash_fetch_available (&opkg->conf->pkg_hash, all);
 838   for (i = 0; i < all->len; i++)
 839   {
 840     pkg_t *pkg;
 841     opkg_package_t *package;
 842
 843     pkg = all->pkgs[i];
 844
 845     package = old_pkg_to_new (pkg);
 846     callback (opkg, package, user_data);
 847   }
 848
 849   pkg_vec_free (all);
 850
 851   return 0;
 852 }
 853
 854 int
 855 opkg_list_upgradable_packages (opkg_t *opkg, opkg_package_callback_t callback, void *user_data)
 856 {
 857   pkg_vec_t *all;
 858   int i;
 859
 860   opkg_assert (opkg);
 861   opkg_assert (callback);
 862
 863   all = pkg_vec_alloc ();
 864   pkg_hash_fetch_available (&opkg->conf->pkg_hash, all);
 865   for (i = 0; i < all->len; i++)
 866   {
 867     pkg_t *old, *new;
 868     int cmp;
 869     opkg_package_t *package;
 870
 871     old = all->pkgs[i];
 872
 873     if (old->state_status != SS_INSTALLED)
 874       continue;
 875
 876     new = pkg_hash_fetch_best_installation_candidate_by_name(opkg->conf, old->name);
 877     if (new == NULL) {
 878       /* XXX: Notice: Assuming locally install package is up to date */
 879       continue;
 880     }
 881
 882     cmp = pkg_compare_versions(old, new);
 883
 884     if (cmp < 0)
 885     {
 886       package = old_pkg_to_new (new);
 887       callback (opkg, package, user_data);
 888     }
 889   }
 890
 891   pkg_vec_free (all);
 892
 893   return 0;
 894 }
 895
 896 opkg_package_t*
 897 opkg_find_package (opkg_t *opkg, const char *name, const char *ver, const char *arch, const char *repo)
 898 {
 899   pkg_vec_t *all;
 900   opkg_package_t *package = NULL;
 901   int i;
 902 #define sstrcmp(x,y) (x && y) ? strcmp (x, y) : 0
 903
 904   opkg_assert (opkg);
 905
 906   all = pkg_vec_alloc ();
 907   pkg_hash_fetch_available (&opkg->conf->pkg_hash, all);
 908   for (i = 0; i < all->len; i++)
 909   {
 910     pkg_t *pkg;
 911     char *pkgv;
 912
 913     pkg = all->pkgs[i];
 914
 915     /* check name */
 916     if (sstrcmp (pkg->name, name))
 917       continue;
 918
 919     /* check version */
 920     pkgv = pkg_version_str_alloc (pkg);
 921     if (sstrcmp (pkgv, ver))
 922     {
 923       free (pkgv);
 924       continue;
 925     }
 926     free (pkgv);
 927
 928     /* check architecture */
 929     if (arch)
 930     {
 931       if (sstrcmp (pkg->architecture, arch))
 932         continue;
 933     }
 934
 935     /* check repository */
 936     if (repo)
 937     {
 938       if (sstrcmp (pkg->src->name, repo))
 939           continue;
 940     }
 941
 942     /* match found */
 943     package = old_pkg_to_new (pkg);
 944     break;
 945   }
 946
 947   pkg_vec_free (all);
 948
 949   return package;
 950 }