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.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 void
 111 opkg_get_option (opkg_t *opkg, char *option, void **value)
 112 {
 113   int i = 0;
 114   opkg_option_t *options = opkg->options;
 115
 116   /* can't store a value in a NULL pointer! */
 117   if (!value)
 118     return;
 119
 120   /* look up the option
 121    * TODO: this would be much better as a hash table
 122    */
 123   while (options[i].name)
 124   {
 125     if (strcmp (options[i].name, option) != 0)
 126     {
 127       i++;
 128       continue;
 129     }
 130   }
 131
 132   /* get the option */
 133   switch (options[i].type)
 134   {
 135   case OPKG_OPT_TYPE_BOOL:
 136     *((int *) value) = *((int *) options[i].value);
 137     return;
 138
 139   case OPKG_OPT_TYPE_INT:
 140     *((int *) value) = *((int *) options[i].value);
 141     return;
 142
 143   case OPKG_OPT_TYPE_STRING:
 144     *((char **)value) = strdup (options[i].value);
 145     return;
 146   }
 147
 148 }
 149
 150 void
 151 opkg_set_option (opkg_t *opkg, char *option, void *value)
 152 {
 153   int i = 0;
 154   opkg_option_t *options = opkg->options;
 155
 156   /* NULL values are not defined */
 157   if (!value)
 158     return;
 159
 160   /* look up the option
 161    * TODO: this would be much better as a hash table
 162    */
 163   while (options[i].name)
 164   {
 165     if (strcmp (options[i].name, option) == 0)
 166     {
 167       break;
 168     }
 169     i++;
 170   }
 171
 172   /* set the option */
 173   switch (options[i].type)
 174   {
 175   case OPKG_OPT_TYPE_BOOL:
 176     if (*((int *) value) == 0)
 177       *((int *)options[i].value) = 0;
 178     else
 179       *((int *)options[i].value) = 1;
 180     return;
 181
 182   case OPKG_OPT_TYPE_INT:
 183     *((int *) options[i].value) = *((int *) value);
 184     return;
 185
 186   case OPKG_OPT_TYPE_STRING:
 187     *((char **)options[i].value) = strdup (value);
 188     return;
 189   }
 190
 191 }
 192
 193 int
 194 opkg_install_package (opkg_t *opkg, char *package_name)
 195 {
 196   int err;
 197
 198   pkg_info_preinstall_check (opkg->conf);
 199
 200   if (opkg->conf->multiple_providers)
 201   {
 202     err = opkg_install_multi_by_name (opkg->conf, package_name);
 203   }
 204   else
 205   {
 206     err = opkg_install_by_name (opkg->conf, package_name);
 207   }
 208
 209   err = opkg_configure_packages (opkg->conf, NULL);
 210
 211   if (opkg->conf->noaction)
 212     return err;
 213
 214   opkg_conf_write_status_files (opkg->conf);
 215   pkg_write_changed_filelists (opkg->conf);
 216
 217   return err;
 218 }
 219
 220 int
 221 opkg_remove_package (opkg_t *opkg, char *package_name)
 222 {
 223   return 1;
 224 }
 225
 226 int
 227 opkg_upgrade_package (opkg_t *opkg, char *package_name)
 228 {
 229   return 1;
 230 }
 231
 232 int
 233 opkg_upgrade_all (opkg_t *opkg)
 234 {
 235   return 1;
 236 }
 237
 238 int
 239 opkg_update_package_lists (opkg_t *opkg)
 240 {
 241   char *tmp;
 242   int err;
 243   char *lists_dir;
 244   pkg_src_list_elt_t *iter;
 245   pkg_src_t *src;
 246
 247
 248   sprintf_alloc (&lists_dir, "%s",
 249                  (opkg->conf->restrict_to_default_dest)
 250                  ? opkg->conf->default_dest->lists_dir
 251                  : opkg->conf->lists_dir);
 252
 253   if (!file_is_dir (lists_dir))
 254   {
 255     if (file_exists (lists_dir))
 256     {
 257       /* XXX: Error: file exists but is not a directory */
 258       free (lists_dir);
 259       return 1;
 260     }
 261
 262     err = file_mkdir_hier (lists_dir, 0755);
 263     if (err)
 264     {
 265       /* XXX: Error: failed to create directory */
 266       free (lists_dir);
 267       return 1;
 268     }
 269   }
 270
 271   tmp = strdup ("/tmp/opkg.XXXXXX");
 272
 273   if (mkdtemp (tmp) == NULL)
 274   {
 275     /* XXX: Error: could not create temporary file name */
 276     free (lists_dir);
 277     free (tmp);
 278     return 1;
 279   }
 280
 281
 282   for (iter = opkg->conf->pkg_src_list.head; iter; iter = iter->next)
 283   {
 284     char *url, *list_file_name;
 285
 286     src = iter->data;
 287
 288     if (src->extra_data)  /* debian style? */
 289       sprintf_alloc (&url, "%s/%s/%s", src->value, src->extra_data,
 290                      src->gzip ? "Packages.gz" : "Packages");
 291     else
 292       sprintf_alloc (&url, "%s/%s", src->value, src->gzip ? "Packages.gz" : "Packages");
 293
 294     sprintf_alloc (&list_file_name, "%s/%s", lists_dir, src->name);
 295     if (src->gzip)
 296     {
 297       char *tmp_file_name;
 298       FILE *in, *out;
 299
 300       sprintf_alloc (&tmp_file_name, "%s/%s.gz", tmp, src->name);
 301
 302       /* XXX: Note: downloading url */
 303       err = opkg_download (opkg->conf, url, tmp_file_name);
 304
 305       if (err == 0)
 306       {
 307         /* XXX: Note: Inflating downloaded file */
 308         in = fopen (tmp_file_name, "r");
 309         out = fopen (list_file_name, "w");
 310         if (in && out)
 311           unzip (in, out);
 312         else
 313           err = 1;
 314         if (in)
 315           fclose (in);
 316         if (out)
 317           fclose (out);
 318         unlink (tmp_file_name);
 319       }
 320     }
 321     else
 322       err = opkg_download (opkg->conf, url, list_file_name);
 323
 324     if (err)
 325     {
 326       /* XXX: Error: download error */
 327     }
 328     free (url);
 329
 330 #ifdef HAVE_GPGME
 331     /* download detached signitures to verify the package lists */
 332     /* get the url for the sig file */
 333     if (src->extra_data)  /* debian style? */
 334       sprintf_alloc (&url, "%s/%s/%s", src->value, src->extra_data,
 335                      "Packages.sig");
 336     else
 337       sprintf_alloc (&url, "%s/%s", src->value, "Packages.sig");
 338
 339     /* create temporary file for it */
 340     char *tmp_file_name;
 341
 342     sprintf_alloc (&tmp_file_name, "%s/%s", tmp, "Packages.sig");
 343
 344     err = opkg_download (opkg->conf, url, tmp_file_name);
 345     if (err)
 346     {
 347       /* XXX: Warning: Download failed */
 348     }
 349     else
 350     {
 351       int err;
 352       err = opkg_verify_file (opkg->conf, list_file_name, tmp_file_name);
 353       if (err == 0)
 354       {
 355         /* XXX: Notice: Signature check passed */
 356       }
 357       else
 358       {
 359         /* XXX: Warning: Signature check failed */
 360       }
 361     }
 362     unlink (tmp_file_name);
 363     free (tmp_file_name);
 364     free (url);
 365 #else
 366     /* XXX: Note: Signiture check for %s skipped because GPG support was not
 367      * enabled in this build
 368      */
 369 #endif
 370     free (list_file_name);
 371   }
 372   rmdir (tmp);
 373   free (tmp);
 374   free (lists_dir);
 375
 376   return 0;
 377 }