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
  29 #include "sprintf_alloc.h"
  30 #include "file_util.h"
  31
  32 #include <libbb/libbb.h>
  33
  34 struct _opkg_t
  35 {
  36   args_t *args;
  37   opkg_conf_t *conf;
  38   opkg_option_t *options;
  39 };
  40
  41 /** Private Functions ***/
  42
  43
  44 static int
  45 opkg_configure_packages(opkg_conf_t *conf, char *pkg_name)
  46 {
  47   pkg_vec_t *all;
  48   int i;
  49   pkg_t *pkg;
  50   int r, err = 0;
  51
  52   all = pkg_vec_alloc ();
  53   pkg_hash_fetch_available (&conf->pkg_hash, all);
  54
  55   for (i = 0; i < all->len; i++)
  56   {
  57     pkg = all->pkgs[i];
  58
  59     if (pkg_name && fnmatch (pkg_name, pkg->name, 0))
  60       continue;
  61
  62     if (pkg->state_status == SS_UNPACKED)
  63     {
  64       r = opkg_configure (conf, pkg);
  65       if (r == 0)
  66       {
  67         pkg->state_status = SS_INSTALLED;
  68         pkg->parent->state_status = SS_INSTALLED;
  69         pkg->state_flag &= ~SF_PREFER;
  70       }
  71       else
  72       {
  73         if (!err)
  74           err = r;
  75       }
  76     }
  77   }
  78
  79   pkg_vec_free (all);
  80   return err;
  81 }
  82
  83
  84
  85 /*** Public API ***/
  86
  87 opkg_t *
  88 opkg_new ()
  89 {
  90   opkg_t *opkg;
  91   opkg = malloc (sizeof (opkg_t));
  92
  93   opkg->args = malloc (sizeof (args_t));
  94   args_init (opkg->args);
  95
  96   opkg->conf = malloc (sizeof (opkg_conf_t));
  97   opkg_conf_init (opkg->conf, opkg->args);
  98
  99   opkg_init_options_array (opkg->conf, &opkg->options);
 100   return opkg;
 101 }
 102
 103 void
 104 opkg_free (opkg_t *opkg)
 105 {
 106   opkg_conf_deinit (opkg->conf);
 107   args_deinit (opkg->args);
 108 }
 109
 110 int
 111 opkg_read_config_files (opkg_t *opkg)
 112 {
 113   args_t *a = opkg->args;
 114   opkg_conf_t *c = opkg->conf;
 115
 116   /* Unfortunatly, the easiest way to re-read the config files right now is to
 117    * throw away opkg->conf and start again */
 118
 119   /* copy the settings we need to keep */
 120   a->autoremove = c->autoremove;
 121   a->force_depends = c->force_depends;
 122   a->force_defaults = c->force_defaults;
 123   a->force_overwrite = c->force_overwrite;
 124   a->force_downgrade = c->force_downgrade;
 125   a->force_reinstall = c->force_reinstall;
 126   a->force_removal_of_dependent_packages = c->force_removal_of_dependent_packages;
 127   a->force_removal_of_essential_packages = c->force_removal_of_essential_packages;
 128   a->nodeps = c->nodeps;
 129   a->noaction = c->noaction;
 130   a->query_all = c->query_all;
 131   a->multiple_providers = c->multiple_providers;
 132   a->verbosity = c->verbosity;
 133
 134   if (a->offline_root) free (a->offline_root);
 135   a->offline_root = strdup (c->offline_root);
 136
 137   if (a->offline_root_pre_script_cmd) free (a->offline_root_pre_script_cmd);
 138   a->offline_root_pre_script_cmd = strdup (c->offline_root_pre_script_cmd);
 139
 140   if (a->offline_root_post_script_cmd) free (a->offline_root_post_script_cmd);
 141   a->offline_root_post_script_cmd = strdup (c->offline_root_post_script_cmd);
 142
 143   /* throw away old opkg_conf and start again */
 144   opkg_conf_deinit (opkg->conf);
 145   opkg_conf_init (opkg->conf, opkg->args);
 146
 147   free (opkg->options);
 148   opkg_init_options_array (opkg->conf, &opkg->options);
 149
 150   return 0;
 151 }
 152
 153 void
 154 opkg_get_option (opkg_t *opkg, char *option, void **value)
 155 {
 156   int i = 0;
 157   opkg_option_t *options = opkg->options;
 158
 159   /* can't store a value in a NULL pointer! */
 160   if (!value)
 161     return;
 162
 163   /* look up the option
 164    * TODO: this would be much better as a hash table
 165    */
 166   while (options[i].name)
 167   {
 168     if (strcmp (options[i].name, option) != 0)
 169     {
 170       i++;
 171       continue;
 172     }
 173   }
 174
 175   /* get the option */
 176   switch (options[i].type)
 177   {
 178   case OPKG_OPT_TYPE_BOOL:
 179     *((int *) value) = *((int *) options[i].value);
 180     return;
 181
 182   case OPKG_OPT_TYPE_INT:
 183     *((int *) value) = *((int *) options[i].value);
 184     return;
 185
 186   case OPKG_OPT_TYPE_STRING:
 187     *((char **)value) = strdup (options[i].value);
 188     return;
 189   }
 190
 191 }
 192
 193 void
 194 opkg_set_option (opkg_t *opkg, char *option, void *value)
 195 {
 196   int i = 0;
 197   opkg_option_t *options = opkg->options;
 198
 199   /* NULL values are not defined */
 200   if (!value)
 201     return;
 202
 203   /* look up the option
 204    * TODO: this would be much better as a hash table
 205    */
 206   while (options[i].name)
 207   {
 208     if (strcmp (options[i].name, option) == 0)
 209     {
 210       break;
 211     }
 212     i++;
 213   }
 214
 215   /* set the option */
 216   switch (options[i].type)
 217   {
 218   case OPKG_OPT_TYPE_BOOL:
 219     if (*((int *) value) == 0)
 220       *((int *)options[i].value) = 0;
 221     else
 222       *((int *)options[i].value) = 1;
 223     return;
 224
 225   case OPKG_OPT_TYPE_INT:
 226     *((int *) options[i].value) = *((int *) value);
 227     return;
 228
 229   case OPKG_OPT_TYPE_STRING:
 230     *((char **)options[i].value) = strdup (value);
 231     return;
 232   }
 233
 234 }
 235
 236 int
 237 opkg_install_package (opkg_t *opkg, char *package_name)
 238 {
 239   int err;
 240
 241   pkg_info_preinstall_check (opkg->conf);
 242
 243   if (opkg->conf->multiple_providers)
 244   {
 245     err = opkg_install_multi_by_name (opkg->conf, package_name);
 246   }
 247   else
 248   {
 249     err = opkg_install_by_name (opkg->conf, package_name);
 250   }
 251
 252   err = opkg_configure_packages (opkg->conf, NULL);
 253
 254   if (opkg->conf->noaction)
 255     return err;
 256
 257   opkg_conf_write_status_files (opkg->conf);
 258   pkg_write_changed_filelists (opkg->conf);
 259
 260   return err;
 261 }
 262
 263 int
 264 opkg_remove_package (opkg_t *opkg, char *package_name)
 265 {
 266   return 1;
 267 }
 268
 269 int
 270 opkg_upgrade_package (opkg_t *opkg, char *package_name)
 271 {
 272   return 1;
 273 }
 274
 275 int
 276 opkg_upgrade_all (opkg_t *opkg)
 277 {
 278   return 1;
 279 }
 280
 281 int
 282 opkg_update_package_lists (opkg_t *opkg)
 283 {
 284   char *tmp;
 285   int err;
 286   char *lists_dir;
 287   pkg_src_list_elt_t *iter;
 288   pkg_src_t *src;
 289
 290
 291   sprintf_alloc (&lists_dir, "%s",
 292                  (opkg->conf->restrict_to_default_dest)
 293                  ? opkg->conf->default_dest->lists_dir
 294                  : opkg->conf->lists_dir);
 295
 296   if (!file_is_dir (lists_dir))
 297   {
 298     if (file_exists (lists_dir))
 299     {
 300       /* XXX: Error: file exists but is not a directory */
 301       free (lists_dir);
 302       return 1;
 303     }
 304
 305     err = file_mkdir_hier (lists_dir, 0755);
 306     if (err)
 307     {
 308       /* XXX: Error: failed to create directory */
 309       free (lists_dir);
 310       return 1;
 311     }
 312   }
 313
 314   tmp = strdup ("/tmp/opkg.XXXXXX");
 315
 316   if (mkdtemp (tmp) == NULL)
 317   {
 318     /* XXX: Error: could not create temporary file name */
 319     free (lists_dir);
 320     free (tmp);
 321     return 1;
 322   }
 323
 324
 325   for (iter = opkg->conf->pkg_src_list.head; iter; iter = iter->next)
 326   {
 327     char *url, *list_file_name;
 328
 329     src = iter->data;
 330
 331     if (src->extra_data)  /* debian style? */
 332       sprintf_alloc (&url, "%s/%s/%s", src->value, src->extra_data,
 333                      src->gzip ? "Packages.gz" : "Packages");
 334     else
 335       sprintf_alloc (&url, "%s/%s", src->value, src->gzip ? "Packages.gz" : "Packages");
 336
 337     sprintf_alloc (&list_file_name, "%s/%s", lists_dir, src->name);
 338     if (src->gzip)
 339     {
 340       char *tmp_file_name;
 341       FILE *in, *out;
 342
 343       sprintf_alloc (&tmp_file_name, "%s/%s.gz", tmp, src->name);
 344
 345       /* XXX: Note: downloading url */
 346       err = opkg_download (opkg->conf, url, tmp_file_name);
 347
 348       if (err == 0)
 349       {
 350         /* XXX: Note: Inflating downloaded file */
 351         in = fopen (tmp_file_name, "r");
 352         out = fopen (list_file_name, "w");
 353         if (in && out)
 354           unzip (in, out);
 355         else
 356           err = 1;
 357         if (in)
 358           fclose (in);
 359         if (out)
 360           fclose (out);
 361         unlink (tmp_file_name);
 362       }
 363     }
 364     else
 365       err = opkg_download (opkg->conf, url, list_file_name);
 366
 367     if (err)
 368     {
 369       /* XXX: Error: download error */
 370     }
 371     free (url);
 372
 373 #ifdef HAVE_GPGME
 374     /* download detached signitures to verify the package lists */
 375     /* get the url for the sig file */
 376     if (src->extra_data)  /* debian style? */
 377       sprintf_alloc (&url, "%s/%s/%s", src->value, src->extra_data,
 378                      "Packages.sig");
 379     else
 380       sprintf_alloc (&url, "%s/%s", src->value, "Packages.sig");
 381
 382     /* create temporary file for it */
 383     char *tmp_file_name;
 384
 385     sprintf_alloc (&tmp_file_name, "%s/%s", tmp, "Packages.sig");
 386
 387     err = opkg_download (opkg->conf, url, tmp_file_name);
 388     if (err)
 389     {
 390       /* XXX: Warning: Download failed */
 391     }
 392     else
 393     {
 394       int err;
 395       err = opkg_verify_file (opkg->conf, list_file_name, tmp_file_name);
 396       if (err == 0)
 397       {
 398         /* XXX: Notice: Signature check passed */
 399       }
 400       else
 401       {
 402         /* XXX: Warning: Signature check failed */
 403       }
 404     }
 405     unlink (tmp_file_name);
 406     free (tmp_file_name);
 407     free (url);
 408 #else
 409     /* XXX: Note: Signiture check for %s skipped because GPG support was not
 410      * enabled in this build
 411      */
 412 #endif
 413     free (list_file_name);
 414   }
 415   rmdir (tmp);
 416   free (tmp);
 417   free (lists_dir);
 418
 419   return 0;
 420 }