libopkg/opkg_cmd.c

   1 /* opkg_cmd.c - the itsy package management system
   2
   3    Carl D. Worth
   4
   5    Copyright (C) 2001 University of Southern California
   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 <string.h>
  19
  20 #include "opkg.h"
  21 #include <libgen.h>
  22 #include <glob.h>
  23 #include <errno.h>
  24 #include <stdlib.h>
  25 #include <unistd.h>
  26 #include <signal.h>
  27 #include <stdio.h>
  28 #include <dirent.h>
  29
  30 #include "opkg_conf.h"
  31 #include "opkg_cmd.h"
  32 #include "opkg_message.h"
  33 #include "pkg.h"
  34 #include "pkg_dest.h"
  35 #include "pkg_parse.h"
  36 #include "sprintf_alloc.h"
  37 #include "pkg.h"
  38 #include "file_util.h"
  39 #include "str_util.h"
  40 #include "libbb/libbb.h"
  41
  42 #include <fnmatch.h>
  43
  44
  45 #include "opkg_download.h"
  46 #include "opkg_install.h"
  47 #include "opkg_upgrade.h"
  48 #include "opkg_remove.h"
  49 #include "opkg_configure.h"
  50 #include "opkg_message.h"
  51
  52 #include "libopkg.h"
  53 static void *p_userdata = NULL;
  54
  55 static int opkg_update_cmd(opkg_conf_t *conf, int argc, char **argv);
  56 static int opkg_upgrade_cmd(opkg_conf_t *conf, int argc, char **argv);
  57 static int opkg_list_cmd(opkg_conf_t *conf, int argc, char **argv);
  58 static int opkg_info_cmd(opkg_conf_t *conf, int argc, char **argv);
  59 static int opkg_status_cmd(opkg_conf_t *conf, int argc, char **argv);
  60 static int opkg_install_pending_cmd(opkg_conf_t *conf, int argc, char **argv);
  61 static int opkg_install_cmd(opkg_conf_t *conf, int argc, char **argv);
  62 static int opkg_list_installed_cmd(opkg_conf_t *conf, int argc, char **argv);
  63 static int opkg_remove_cmd(opkg_conf_t *conf, int argc, char **argv);
  64 static int opkg_purge_cmd(opkg_conf_t *conf, int argc, char **argv);
  65 static int opkg_flag_cmd(opkg_conf_t *conf, int argc, char **argv);
  66 static int opkg_files_cmd(opkg_conf_t *conf, int argc, char **argv);
  67 static int opkg_search_cmd(opkg_conf_t *conf, int argc, char **argv);
  68 static int opkg_download_cmd(opkg_conf_t *conf, int argc, char **argv);
  69 static int opkg_depends_cmd(opkg_conf_t *conf, int argc, char **argv);
  70 static int opkg_whatdepends_cmd(opkg_conf_t *conf, int argc, char **argv);
  71 static int opkg_whatdepends_recursively_cmd(opkg_conf_t *conf, int argc, char **argv);
  72 static int opkg_whatsuggests_cmd(opkg_conf_t *conf, int argc, char **argv);
  73 static int opkg_whatrecommends_cmd(opkg_conf_t *conf, int argc, char **argv);
  74 static int opkg_whatprovides_cmd(opkg_conf_t *conf, int argc, char **argv);
  75 static int opkg_whatconflicts_cmd(opkg_conf_t *conf, int argc, char **argv);
  76 static int opkg_whatreplaces_cmd(opkg_conf_t *conf, int argc, char **argv);
  77 static int opkg_compare_versions_cmd(opkg_conf_t *conf, int argc, char **argv);
  78 static int opkg_print_architecture_cmd(opkg_conf_t *conf, int argc, char **argv);
  79 static int opkg_configure_cmd(opkg_conf_t *conf, int argc, char **argv);
  80
  81 /* XXX: CLEANUP: The usage strings should be incorporated into this
  82    array for easier maintenance */
  83 static opkg_cmd_t cmds[] = {
  84      {"update", 0, (opkg_cmd_fun_t)opkg_update_cmd},
  85      {"upgrade", 0, (opkg_cmd_fun_t)opkg_upgrade_cmd},
  86      {"list", 0, (opkg_cmd_fun_t)opkg_list_cmd},
  87      {"list_installed", 0, (opkg_cmd_fun_t)opkg_list_installed_cmd},
  88      {"info", 0, (opkg_cmd_fun_t)opkg_info_cmd},
  89      {"flag", 1, (opkg_cmd_fun_t)opkg_flag_cmd},
  90      {"status", 0, (opkg_cmd_fun_t)opkg_status_cmd},
  91      {"install_pending", 0, (opkg_cmd_fun_t)opkg_install_pending_cmd},
  92      {"install", 1, (opkg_cmd_fun_t)opkg_install_cmd},
  93      {"remove", 1, (opkg_cmd_fun_t)opkg_remove_cmd},
  94      {"purge", 1, (opkg_cmd_fun_t)opkg_purge_cmd},
  95      {"configure", 0, (opkg_cmd_fun_t)opkg_configure_cmd},
  96      {"files", 1, (opkg_cmd_fun_t)opkg_files_cmd},
  97      {"search", 1, (opkg_cmd_fun_t)opkg_search_cmd},
  98      {"download", 1, (opkg_cmd_fun_t)opkg_download_cmd},
  99      {"compare_versions", 1, (opkg_cmd_fun_t)opkg_compare_versions_cmd},
 100      {"compare-versions", 1, (opkg_cmd_fun_t)opkg_compare_versions_cmd},
 101      {"print-architecture", 0, (opkg_cmd_fun_t)opkg_print_architecture_cmd},
 102      {"print_architecture", 0, (opkg_cmd_fun_t)opkg_print_architecture_cmd},
 103      {"print-installation-architecture", 0, (opkg_cmd_fun_t)opkg_print_architecture_cmd},
 104      {"print_installation_architecture", 0, (opkg_cmd_fun_t)opkg_print_architecture_cmd},
 105      {"depends", 1, (opkg_cmd_fun_t)opkg_depends_cmd},
 106      {"whatdepends", 1, (opkg_cmd_fun_t)opkg_whatdepends_cmd},
 107      {"whatdependsrec", 1, (opkg_cmd_fun_t)opkg_whatdepends_recursively_cmd},
 108      {"whatrecommends", 1, (opkg_cmd_fun_t)opkg_whatrecommends_cmd},
 109      {"whatsuggests", 1, (opkg_cmd_fun_t)opkg_whatsuggests_cmd},
 110      {"whatprovides", 1, (opkg_cmd_fun_t)opkg_whatprovides_cmd},
 111      {"whatreplaces", 1, (opkg_cmd_fun_t)opkg_whatreplaces_cmd},
 112      {"whatconflicts", 1, (opkg_cmd_fun_t)opkg_whatconflicts_cmd},
 113 };
 114
 115 int opkg_state_changed;
 116 static void write_status_files_if_changed(opkg_conf_t *conf)
 117 {
 118      if (opkg_state_changed && !conf->noaction) {
 119           opkg_message(conf, OPKG_INFO,
 120                        "  writing status file\n");
 121           opkg_conf_write_status_files(conf);
 122           pkg_write_changed_filelists(conf);
 123      } else {
 124           opkg_message(conf, OPKG_NOTICE, "Nothing to be done\n");
 125      }
 126 }
 127
 128
 129 static int num_cmds = sizeof(cmds) / sizeof(opkg_cmd_t);
 130
 131 opkg_cmd_t *opkg_cmd_find(const char *name)
 132 {
 133      int i;
 134      opkg_cmd_t *cmd;
 135
 136      for (i=0; i < num_cmds; i++) {
 137           cmd = &cmds[i];
 138           if (strcmp(name, cmd->name) == 0) {
 139                return cmd;
 140           }
 141      }
 142
 143      return NULL;
 144 }
 145
 146 int opkg_cmd_exec(opkg_cmd_t *cmd, opkg_conf_t *conf, int argc, const char **argv, void *userdata)
 147 {
 148         int result;
 149         p_userdata = userdata;
 150
 151
 152         result = (cmd->fun)(conf, argc, argv);
 153
 154         if ( result != 0 ) {
 155            opkg_message(conf, OPKG_NOTICE, "An error ocurred, return value: %d.\n", result);
 156         }
 157
 158         if ( error_list ) {
 159            reverse_error_list(&error_list);
 160
 161            opkg_message(conf, OPKG_NOTICE, "Collected errors:\n");
 162            /* Here we print the errors collected and free the list */
 163            while (error_list != NULL) {
 164                  opkg_message(conf, OPKG_NOTICE, "%s",error_list->errmsg);
 165                  error_list = error_list->next;
 166
 167            }
 168            free_error_list(&error_list);
 169
 170         }
 171
 172         p_userdata = NULL;
 173         return result;
 174 }
 175
 176 static int opkg_update_cmd(opkg_conf_t *conf, int argc, char **argv)
 177 {
 178      char *tmp;
 179      int err;
 180      int failures;
 181      char *lists_dir;
 182      pkg_src_list_elt_t *iter;
 183      pkg_src_t *src;
 184
 185
 186     sprintf_alloc(&lists_dir, "%s", conf->restrict_to_default_dest ? conf->default_dest->lists_dir : conf->lists_dir);
 187
 188     if (! file_is_dir(lists_dir)) {
 189           if (file_exists(lists_dir)) {
 190                opkg_message(conf, OPKG_ERROR,
 191                             "%s: ERROR: %s exists, but is not a directory\n",
 192                             __FUNCTION__, lists_dir);
 193                free(lists_dir);
 194                return EINVAL;
 195           }
 196           err = file_mkdir_hier(lists_dir, 0755);
 197           if (err) {
 198                opkg_message(conf, OPKG_ERROR,
 199                             "%s: ERROR: failed to make directory %s: %s\n",
 200                             __FUNCTION__, lists_dir, strerror(errno));
 201                free(lists_dir);
 202                return EINVAL;
 203           }
 204      }
 205
 206      failures = 0;
 207
 208
 209      tmp = strdup ("/tmp/opkg.XXXXXX");
 210
 211      if (mkdtemp (tmp) == NULL) {
 212          perror ("mkdtemp");
 213          failures++;
 214      }
 215
 216
 217      for (iter = conf->pkg_src_list.head; iter; iter = iter->next) {
 218           char *url, *list_file_name;
 219
 220           src = iter->data;
 221
 222           if (src->extra_data)  /* debian style? */
 223               sprintf_alloc(&url, "%s/%s/%s", src->value, src->extra_data,
 224                             src->gzip ? "Packages.gz" : "Packages");
 225           else
 226               sprintf_alloc(&url, "%s/%s", src->value, src->gzip ? "Packages.gz" : "Packages");
 227
 228           sprintf_alloc(&list_file_name, "%s/%s", lists_dir, src->name);
 229           if (src->gzip) {
 230               char *tmp_file_name;
 231               FILE *in, *out;
 232
 233               sprintf_alloc (&tmp_file_name, "%s/%s.gz", tmp, src->name);
 234               err = opkg_download(conf, url, tmp_file_name);
 235               if (err == 0) {
 236                    opkg_message (conf, OPKG_NOTICE, "Inflating %s\n", url);
 237                    in = fopen (tmp_file_name, "r");
 238                    out = fopen (list_file_name, "w");
 239                    if (in && out)
 240                         unzip (in, out);
 241                    else
 242                         err = 1;
 243                    if (in)
 244                         fclose (in);
 245                    if (out)
 246                         fclose (out);
 247                    unlink (tmp_file_name);
 248               }
 249           } else
 250               err = opkg_download(conf, url, list_file_name);
 251           if (err) {
 252                failures++;
 253           } else {
 254                opkg_message(conf, OPKG_NOTICE,
 255                             "Updated list of available packages in %s\n",
 256                             list_file_name);
 257           }
 258           free(url);
 259
 260 #ifdef HAVE_GPGME
 261           /* download detached signitures to verify the package lists */
 262           /* get the url for the sig file */
 263           if (src->extra_data)  /* debian style? */
 264               sprintf_alloc(&url, "%s/%s/%s", src->value, src->extra_data,
 265                             "Packages.sig");
 266           else
 267               sprintf_alloc(&url, "%s/%s", src->value, "Packages.sig");
 268
 269           /* create temporary file for it */
 270           char *tmp_file_name;
 271
 272           sprintf_alloc (&tmp_file_name, "%s/%s", tmp, "Packages.sig");
 273
 274           err = opkg_download(conf, url, tmp_file_name);
 275           if (err) {
 276             failures++;
 277                 opkg_message (conf, OPKG_NOTICE, "Signature check failed\n");
 278           } else {
 279             int err;
 280             err = opkg_verify_file (conf, list_file_name, tmp_file_name);
 281             if (err == 0)
 282                 opkg_message (conf, OPKG_NOTICE, "Signature check passed\n");
 283             else
 284                 opkg_message (conf, OPKG_NOTICE, "Signature check failed\n");
 285           }
 286           unlink (tmp_file_name);
 287           free (tmp_file_name);
 288           free (url);
 289 #else
 290           opkg_message (conf, OPKG_NOTICE, "Signiture check for %s skipped "
 291               "because GPG support was not enabled in this build\n", src->name);
 292 #endif
 293           free(list_file_name);
 294      }
 295      rmdir (tmp);
 296      free (tmp);
 297      free(lists_dir);
 298
 299      return failures;
 300 }
 301
 302
 303 /* scan the args passed and cache the local filenames of the packages */
 304 int opkg_multiple_files_scan(opkg_conf_t *conf, int argc, char **argv)
 305 {
 306      int i;
 307      int err;
 308
 309      /*
 310       * First scan through package names/urls
 311       * For any urls, download the packages and install in database.
 312       * For any files, install package info in database.
 313       */
 314      for (i = 0; i < argc; i ++) {
 315           char *filename = argv [i];
 316           //char *tmp = basename (tmp);
 317           //int tmplen = strlen (tmp);
 318
 319           //if (strcmp (tmp + (tmplen - strlen (OPKG_PKG_EXTENSION)), OPKG_PKG_EXTENSION) != 0)
 320           //     continue;
 321           //if (strcmp (tmp + (tmplen - strlen (DPKG_PKG_EXTENSION)), DPKG_PKG_EXTENSION) != 0)
 322           //     continue;
 323
 324           opkg_message(conf, OPKG_DEBUG2, "Debug mfs: %s  \n",filename );
 325
 326           err = opkg_prepare_url_for_install(conf, filename, &argv[i]);
 327           if (err)
 328             return err;
 329      }
 330      return 0;
 331 }
 332
 333 struct opkg_intercept
 334 {
 335     char *oldpath;
 336     char *statedir;
 337 };
 338
 339 typedef struct opkg_intercept *opkg_intercept_t;
 340
 341 opkg_intercept_t opkg_prep_intercepts(opkg_conf_t *conf)
 342 {
 343     opkg_intercept_t ctx;
 344     char *newpath;
 345     int gen;
 346
 347     ctx = malloc (sizeof (*ctx));
 348     ctx->oldpath = strdup (getenv ("PATH"));
 349
 350     sprintf_alloc (&newpath, "%s/opkg/intercept:%s", DATADIR, ctx->oldpath);
 351     setenv ("PATH", newpath, 1);
 352     free (newpath);
 353
 354     gen = 0;
 355  retry:
 356     sprintf_alloc (&ctx->statedir, "/tmp/opkg-intercept-%d-%d", getpid (), gen);
 357     if (mkdir (ctx->statedir, 0770) < 0) {
 358         if (errno == EEXIST) {
 359             free (ctx->statedir);
 360             gen++;
 361             goto retry;
 362         }
 363         perror (ctx->statedir);
 364         return NULL;
 365     }
 366     setenv ("OPKG_INTERCEPT_DIR", ctx->statedir, 1);
 367     return ctx;
 368 }
 369
 370 int opkg_finalize_intercepts(opkg_intercept_t ctx)
 371 {
 372     char *cmd;
 373     DIR *dir;
 374     int err = 0;
 375
 376     setenv ("PATH", ctx->oldpath, 1);
 377     free (ctx->oldpath);
 378
 379     dir = opendir (ctx->statedir);
 380     if (dir) {
 381         struct dirent *de;
 382         while (de = readdir (dir), de != NULL) {
 383             char *path;
 384
 385             if (de->d_name[0] == '.')
 386                 continue;
 387
 388             sprintf_alloc (&path, "%s/%s", ctx->statedir, de->d_name);
 389             if (access (path, X_OK) == 0) {
 390                 if (system (path)) {
 391                     err = errno;
 392                     perror (de->d_name);
 393                 }
 394             }
 395             free (path);
 396         }
 397     } else
 398         perror (ctx->statedir);
 399
 400     sprintf_alloc (&cmd, "rm -rf %s", ctx->statedir);
 401     system (cmd);
 402     free (cmd);
 403
 404     free (ctx->statedir);
 405     free (ctx);
 406
 407     return err;
 408 }
 409
 410 int opkg_configure_packages(opkg_conf_t *conf, char *pkg_name)
 411 {
 412      pkg_vec_t *all;
 413      int i;
 414      pkg_t *pkg;
 415      opkg_intercept_t ic;
 416      int r, err = 0;
 417
 418      opkg_message(conf, OPKG_INFO,
 419                   "Configuring unpacked packages\n");
 420      fflush( stdout );
 421
 422      all = pkg_vec_alloc();
 423      pkg_hash_fetch_available(&conf->pkg_hash, all);
 424
 425      ic = opkg_prep_intercepts (conf);
 426
 427      for(i = 0; i < all->len; i++) {
 428           pkg = all->pkgs[i];
 429
 430           if (pkg_name && fnmatch(pkg_name, pkg->name, 0))
 431                continue;
 432
 433           if (pkg->state_status == SS_UNPACKED) {
 434                opkg_message(conf, OPKG_NOTICE,
 435                             "Configuring %s\n", pkg->name);
 436                fflush( stdout );
 437                r = opkg_configure(conf, pkg);
 438                if (r == 0) {
 439                     pkg->state_status = SS_INSTALLED;
 440                     pkg->parent->state_status = SS_INSTALLED;
 441                     pkg->state_flag &= ~SF_PREFER;
 442                } else {
 443                     if (!err)
 444                         err = r;
 445                }
 446           }
 447      }
 448
 449      r = opkg_finalize_intercepts (ic);
 450      if (r && !err)
 451          err = r;
 452
 453      pkg_vec_free(all);
 454      return err;
 455 }
 456
 457 static opkg_conf_t *global_conf;
 458
 459 static void sigint_handler(int sig)
 460 {
 461      signal(sig, SIG_DFL);
 462      opkg_message(NULL, OPKG_NOTICE,
 463                   "opkg: interrupted. writing out status database\n");
 464      write_status_files_if_changed(global_conf);
 465      exit(128 + sig);
 466 }
 467
 468 static int opkg_install_cmd(opkg_conf_t *conf, int argc, char **argv)
 469 {
 470      int i;
 471      char *arg;
 472      int err=0;
 473
 474      global_conf = conf;
 475      signal(SIGINT, sigint_handler);
 476
 477      /*
 478       * Now scan through package names and install
 479       */
 480      for (i=0; i < argc; i++) {
 481           arg = argv[i];
 482
 483           opkg_message(conf, OPKG_DEBUG2, "Debug install_cmd: %s  \n",arg );
 484           err = opkg_prepare_url_for_install(conf, arg, &argv[i]);
 485           if (err != EINVAL && err != 0)
 486               return err;
 487      }
 488      pkg_info_preinstall_check(conf);
 489
 490      for (i=0; i < argc; i++) {
 491           arg = argv[i];
 492           if (conf->multiple_providers)
 493                err = opkg_install_multi_by_name(conf, arg);
 494           else{
 495                err = opkg_install_by_name(conf, arg);
 496           }
 497           if (err == OPKG_PKG_HAS_NO_CANDIDATE) {
 498                opkg_message(conf, OPKG_ERROR,
 499                             "Cannot find package %s.\n"
 500                             "Check the spelling or perhaps run 'opkg update'\n",
 501                             arg);
 502           }
 503      }
 504
 505      /* recheck to verify that all dependences are satisfied */
 506      if (0) opkg_satisfy_all_dependences(conf);
 507
 508      opkg_configure_packages(conf, NULL);
 509
 510      write_status_files_if_changed(conf);
 511
 512      return err;
 513 }
 514
 515 static int opkg_upgrade_cmd(opkg_conf_t *conf, int argc, char **argv)
 516 {
 517      int i;
 518      pkg_t *pkg;
 519      int err;
 520
 521      global_conf = conf;
 522      signal(SIGINT, sigint_handler);
 523
 524      if (argc) {
 525           for (i=0; i < argc; i++) {
 526                char *arg = argv[i];
 527
 528                err = opkg_prepare_url_for_install(conf, arg, &arg);
 529                if (err != EINVAL && err != 0)
 530                    return err;
 531           }
 532           pkg_info_preinstall_check(conf);
 533
 534           for (i=0; i < argc; i++) {
 535                char *arg = argv[i];
 536                if (conf->restrict_to_default_dest) {
 537                     pkg = pkg_hash_fetch_installed_by_name_dest(&conf->pkg_hash,
 538                                                                 argv[i],
 539                                                                 conf->default_dest);
 540                     if (pkg == NULL) {
 541                          opkg_message(conf, OPKG_NOTICE,
 542                                       "Package %s not installed in %s\n",
 543                                       argv[i], conf->default_dest->name);
 544                          continue;
 545                     }
 546                } else {
 547                     pkg = pkg_hash_fetch_installed_by_name(&conf->pkg_hash,
 548                                                            argv[i]);
 549                }
 550                if (pkg)
 551                     opkg_upgrade_pkg(conf, pkg);
 552                else {
 553                     opkg_install_by_name(conf, arg);
 554                }
 555           }
 556      } else {
 557           pkg_vec_t *installed = pkg_vec_alloc();
 558
 559           pkg_info_preinstall_check(conf);
 560
 561           pkg_hash_fetch_all_installed(&conf->pkg_hash, installed);
 562           for (i = 0; i < installed->len; i++) {
 563                pkg = installed->pkgs[i];
 564                opkg_upgrade_pkg(conf, pkg);
 565           }
 566           pkg_vec_free(installed);
 567      }
 568
 569      /* recheck to verify that all dependences are satisfied */
 570      if (0) opkg_satisfy_all_dependences(conf);
 571
 572      opkg_configure_packages(conf, NULL);
 573
 574      write_status_files_if_changed(conf);
 575
 576      return 0;
 577 }
 578
 579 static int opkg_download_cmd(opkg_conf_t *conf, int argc, char **argv)
 580 {
 581      int i, err;
 582      char *arg;
 583      pkg_t *pkg;
 584
 585      pkg_info_preinstall_check(conf);
 586      for (i = 0; i < argc; i++) {
 587           arg = argv[i];
 588
 589           pkg = pkg_hash_fetch_best_installation_candidate_by_name(conf, arg);
 590           if (pkg == NULL) {
 591                opkg_message(conf, OPKG_ERROR,
 592                             "Cannot find package %s.\n"
 593                             "Check the spelling or perhaps run 'opkg update'\n",
 594                             arg);
 595                continue;
 596           }
 597
 598           err = opkg_download_pkg(conf, pkg, ".");
 599
 600           if (err) {
 601                opkg_message(conf, OPKG_ERROR,
 602                             "Failed to download %s\n", pkg->name);
 603           } else {
 604                opkg_message(conf, OPKG_NOTICE,
 605                             "Downloaded %s as %s\n",
 606                             pkg->name, pkg->local_filename);
 607           }
 608      }
 609
 610      return 0;
 611 }
 612
 613
 614 static int opkg_list_cmd(opkg_conf_t *conf, int argc, char **argv)
 615 {
 616      int i ;
 617      pkg_vec_t *available;
 618      pkg_t *pkg;
 619      char desc_short[OPKG_LIST_DESCRIPTION_LENGTH];
 620      char *newline;
 621      char *pkg_name = NULL;
 622      char *version_str;
 623
 624      if (argc > 0) {
 625           pkg_name = argv[0];
 626      }
 627      available = pkg_vec_alloc();
 628      pkg_hash_fetch_available(&conf->pkg_hash, available);
 629      for (i=0; i < available->len; i++) {
 630           pkg = available->pkgs[i];
 631           /* if we have package name or pattern and pkg does not match, then skip it */
 632           if (pkg_name && fnmatch(pkg_name, pkg->name, 0))
 633                continue;
 634           if (pkg->description) {
 635                strncpy(desc_short, pkg->description, OPKG_LIST_DESCRIPTION_LENGTH);
 636           } else {
 637                desc_short[0] = '\0';
 638           }
 639           desc_short[OPKG_LIST_DESCRIPTION_LENGTH - 1] = '\0';
 640           newline = strchr(desc_short, '\n');
 641           if (newline) {
 642                *newline = '\0';
 643           }
 644           if (opkg_cb_list) {
 645                 version_str = pkg_version_str_alloc(pkg);
 646                 opkg_cb_list(pkg->name,desc_short,
 647                                              version_str,
 648                                          pkg->state_status,
 649                                          p_userdata);
 650                 free(version_str);
 651           }
 652      }
 653      pkg_vec_free(available);
 654
 655      return 0;
 656 }
 657
 658
 659 static int opkg_list_installed_cmd(opkg_conf_t *conf, int argc, char **argv)
 660 {
 661      int i ;
 662      pkg_vec_t *available;
 663      pkg_t *pkg;
 664      char desc_short[OPKG_LIST_DESCRIPTION_LENGTH];
 665      char *newline;
 666      char *pkg_name = NULL;
 667      char *version_str;
 668
 669      if (argc > 0) {
 670           pkg_name = argv[0];
 671      }
 672      available = pkg_vec_alloc();
 673      pkg_hash_fetch_all_installed(&conf->pkg_hash, available);
 674      for (i=0; i < available->len; i++) {
 675           pkg = available->pkgs[i];
 676           /* if we have package name or pattern and pkg does not match, then skip it */
 677           if (pkg_name && fnmatch(pkg_name, pkg->name, 0))
 678                continue;
 679           if (pkg->description) {
 680                strncpy(desc_short, pkg->description, OPKG_LIST_DESCRIPTION_LENGTH);
 681           } else {
 682                desc_short[0] = '\0';
 683           }
 684           desc_short[OPKG_LIST_DESCRIPTION_LENGTH - 1] = '\0';
 685           newline = strchr(desc_short, '\n');
 686           if (newline) {
 687                *newline = '\0';
 688           }
 689           if (opkg_cb_list) {
 690                 version_str = pkg_version_str_alloc(pkg);
 691                 opkg_cb_list(pkg->name,desc_short,
 692                                              version_str,
 693                                          pkg->state_status,
 694                                          p_userdata);
 695                 free(version_str);
 696           }
 697      }
 698
 699      return 0;
 700 }
 701
 702 static int opkg_info_status_cmd(opkg_conf_t *conf, int argc, char **argv, int installed_only)
 703 {
 704      int i;
 705      pkg_vec_t *available;
 706      pkg_t *pkg;
 707      char *pkg_name = NULL;
 708      char **pkg_fields = NULL;
 709      int n_fields = 0;
 710      char *buff ; // = (char *)malloc(1);
 711
 712      if (argc > 0) {
 713           pkg_name = argv[0];
 714      }
 715      if (argc > 1) {
 716           pkg_fields = &argv[1];
 717           n_fields = argc - 1;
 718      }
 719
 720      available = pkg_vec_alloc();
 721      if (installed_only)
 722           pkg_hash_fetch_all_installed(&conf->pkg_hash, available);
 723      else
 724           pkg_hash_fetch_available(&conf->pkg_hash, available);
 725      for (i=0; i < available->len; i++) {
 726           pkg = available->pkgs[i];
 727           if (pkg_name && fnmatch(pkg_name, pkg->name, 0)) {
 728                continue;
 729           }
 730
 731           buff = pkg_formatted_info(pkg);
 732           if ( buff ) {
 733                if (opkg_cb_status) opkg_cb_status(pkg->name,
 734                                                   pkg->state_status,
 735                                                   buff,
 736                                                   p_userdata);
 737 /*
 738    We should not forget that actually the pointer is allocated.
 739    We need to free it :)  ( Thanks florian for seeing the error )
 740 */
 741                free(buff);
 742           }
 743           if (conf->verbosity > 1) {
 744                conffile_list_elt_t *iter;
 745                for (iter = pkg->conffiles.head; iter; iter = iter->next) {
 746                     conffile_t *cf = iter->data;
 747                     int modified = conffile_has_been_modified(conf, cf);
 748                     opkg_message(conf, OPKG_NOTICE, "conffile=%s md5sum=%s modified=%d\n",
 749                                  cf->name, cf->value, modified);
 750                }
 751           }
 752      }
 753      pkg_vec_free(available);
 754
 755      return 0;
 756 }
 757
 758 static int opkg_info_cmd(opkg_conf_t *conf, int argc, char **argv)
 759 {
 760      return opkg_info_status_cmd(conf, argc, argv, 0);
 761 }
 762
 763 static int opkg_status_cmd(opkg_conf_t *conf, int argc, char **argv)
 764 {
 765      return opkg_info_status_cmd(conf, argc, argv, 1);
 766 }
 767
 768 static int opkg_configure_cmd(opkg_conf_t *conf, int argc, char **argv)
 769 {
 770
 771      int err;
 772      if (argc > 0) {
 773           char *pkg_name = NULL;
 774
 775           pkg_name = argv[0];
 776
 777           err = opkg_configure_packages (conf, pkg_name);
 778
 779      } else {
 780           err = opkg_configure_packages (conf, NULL);
 781      }
 782
 783      write_status_files_if_changed(conf);
 784
 785      return err;
 786 }
 787
 788 static int opkg_install_pending_cmd(opkg_conf_t *conf, int argc, char **argv)
 789 {
 790      int i, err;
 791      char *globpattern;
 792      glob_t globbuf;
 793
 794      sprintf_alloc(&globpattern, "%s/*" OPKG_PKG_EXTENSION, conf->pending_dir);
 795      err = glob(globpattern, 0, NULL, &globbuf);
 796      free(globpattern);
 797      if (err) {
 798           return 0;
 799      }
 800
 801      opkg_message(conf, OPKG_NOTICE,
 802                   "The following packages in %s will now be installed.\n",
 803                   conf->pending_dir);
 804      for (i = 0; i < globbuf.gl_pathc; i++) {
 805           opkg_message(conf, OPKG_NOTICE,
 806                        "%s%s", i == 0 ? "" : " ", globbuf.gl_pathv[i]);
 807      }
 808      opkg_message(conf, OPKG_NOTICE, "\n");
 809      for (i = 0; i < globbuf.gl_pathc; i++) {
 810           err = opkg_install_from_file(conf, globbuf.gl_pathv[i]);
 811           if (err == 0) {
 812                err = unlink(globbuf.gl_pathv[i]);
 813                if (err) {
 814                     opkg_message(conf, OPKG_ERROR,
 815                                  "%s: ERROR: failed to unlink %s: %s\n",
 816                                  __FUNCTION__, globbuf.gl_pathv[i], strerror(err));
 817                     return err;
 818                }
 819           }
 820      }
 821      globfree(&globbuf);
 822
 823      return err;
 824 }
 825
 826 static int opkg_remove_cmd(opkg_conf_t *conf, int argc, char **argv)
 827 {
 828      int i,a,done;
 829      pkg_t *pkg;
 830      pkg_t *pkg_to_remove;
 831      pkg_vec_t *available;
 832      char *pkg_name = NULL;
 833      global_conf = conf;
 834      signal(SIGINT, sigint_handler);
 835
 836 // ENH: Add the "no pkg removed" just in case.
 837
 838     done = 0;
 839
 840      available = pkg_vec_alloc();
 841      pkg_info_preinstall_check(conf);
 842      if ( argc > 0 ) {
 843         pkg_hash_fetch_all_installed(&conf->pkg_hash, available);
 844         for (i=0; i < argc; i++) {
 845            pkg_name = malloc(strlen(argv[i])+2);
 846            strcpy(pkg_name,argv[i]);
 847            for (a=0; a < available->len; a++) {
 848                pkg = available->pkgs[a];
 849                if (pkg_name && fnmatch(pkg_name, pkg->name, 0)) {
 850                   continue;
 851                }
 852                if (conf->restrict_to_default_dest) {
 853                     pkg_to_remove = pkg_hash_fetch_installed_by_name_dest(&conf->pkg_hash,
 854                                                                 pkg->name,
 855                                                                 conf->default_dest);
 856                } else {
 857                     pkg_to_remove = pkg_hash_fetch_installed_by_name(&conf->pkg_hash, pkg->name );
 858                }
 859
 860                if (pkg == NULL) {
 861                     opkg_message(conf, OPKG_ERROR, "Package %s is not installed.\n", pkg->name);
 862                     continue;
 863                }
 864                if (pkg->state_status == SS_NOT_INSTALLED) {    // Added the control, so every already removed package could be skipped
 865                     opkg_message(conf, OPKG_ERROR, "Package seems to be %s not installed (STATUS = NOT_INSTALLED).\n", pkg->name);
 866                     continue;
 867                }
 868                opkg_remove_pkg(conf, pkg_to_remove,0);
 869                done = 1;
 870            }
 871            free (pkg_name);
 872         }
 873         pkg_vec_free(available);
 874      } else {
 875           pkg_vec_t *installed_pkgs = pkg_vec_alloc();
 876           int i;
 877           int flagged_pkg_count = 0;
 878           int removed;
 879
 880           pkg_hash_fetch_all_installed(&conf->pkg_hash, installed_pkgs);
 881
 882           for (i = 0; i < installed_pkgs->len; i++) {
 883                pkg_t *pkg = installed_pkgs->pkgs[i];
 884                if (pkg->state_flag & SF_USER) {
 885                     flagged_pkg_count++;
 886                } else {
 887                     if (!pkg_has_installed_dependents(conf, pkg->parent, pkg, NULL))
 888                          opkg_message(conf, OPKG_NOTICE, "Non-user leaf package: %s\n", pkg->name);
 889                }
 890           }
 891           if (!flagged_pkg_count) {
 892                opkg_message(conf, OPKG_NOTICE, "No packages flagged as installed by user, \n"
 893                             "so refusing to uninstall unflagged non-leaf packages\n");
 894                return 0;
 895           }
 896
 897           /* find packages not flagged SF_USER (i.e., installed to
 898            * satisfy a dependence) and not having any dependents, and
 899            * remove them */
 900           do {
 901                removed = 0;
 902                for (i = 0; i < installed_pkgs->len; i++) {
 903                     pkg_t *pkg = installed_pkgs->pkgs[i];
 904                     if (!(pkg->state_flag & SF_USER)
 905                         && !pkg_has_installed_dependents(conf, pkg->parent, pkg, NULL)) {
 906                          removed++;
 907                          opkg_message(conf, OPKG_NOTICE, "Removing non-user leaf package %s\n");
 908                          opkg_remove_pkg(conf, pkg,0);
 909                          done = 1;
 910                     }
 911                }
 912           } while (removed);
 913           pkg_vec_free(installed_pkgs);
 914      }
 915
 916      if ( done == 0 )
 917         opkg_message(conf, OPKG_NOTICE, "No packages removed.\n");
 918
 919      write_status_files_if_changed(conf);
 920      return 0;
 921 }
 922
 923 static int opkg_purge_cmd(opkg_conf_t *conf, int argc, char **argv)
 924 {
 925      int i;
 926      pkg_t *pkg;
 927
 928      global_conf = conf;
 929      signal(SIGINT, sigint_handler);
 930
 931      pkg_info_preinstall_check(conf);
 932
 933      for (i=0; i < argc; i++) {
 934           if (conf->restrict_to_default_dest) {
 935                pkg = pkg_hash_fetch_installed_by_name_dest(&conf->pkg_hash,
 936                                                            argv[i],
 937                                                            conf->default_dest);
 938           } else {
 939                pkg = pkg_hash_fetch_installed_by_name(&conf->pkg_hash, argv[i]);
 940           }
 941
 942           if (pkg == NULL) {
 943                opkg_message(conf, OPKG_ERROR,
 944                             "Package %s is not installed.\n", argv[i]);
 945                continue;
 946           }
 947           opkg_purge_pkg(conf, pkg);
 948      }
 949
 950      write_status_files_if_changed(conf);
 951      return 0;
 952 }
 953
 954 static int opkg_flag_cmd(opkg_conf_t *conf, int argc, char **argv)
 955 {
 956      int i;
 957      pkg_t *pkg;
 958      const char *flags = argv[0];
 959
 960      global_conf = conf;
 961      signal(SIGINT, sigint_handler);
 962
 963      for (i=1; i < argc; i++) {
 964           if (conf->restrict_to_default_dest) {
 965                pkg = pkg_hash_fetch_installed_by_name_dest(&conf->pkg_hash,
 966                                                            argv[i],
 967                                                            conf->default_dest);
 968           } else {
 969                pkg = pkg_hash_fetch_installed_by_name(&conf->pkg_hash, argv[i]);
 970           }
 971
 972           if (pkg == NULL) {
 973                opkg_message(conf, OPKG_ERROR,
 974                             "Package %s is not installed.\n", argv[i]);
 975                continue;
 976           }
 977           if (( strcmp(flags,"hold")==0)||( strcmp(flags,"noprune")==0)||
 978               ( strcmp(flags,"user")==0)||( strcmp(flags,"ok")==0)) {
 979               pkg->state_flag = pkg_state_flag_from_str(flags);
 980           }
 981 /* pb_ asked this feature 03292004 */
 982 /* Actually I will use only this two, but this is an open for various status */
 983           if (( strcmp(flags,"installed")==0)||( strcmp(flags,"unpacked")==0)){
 984               pkg->state_status = pkg_state_status_from_str(flags);
 985           }
 986           opkg_state_changed++;
 987           opkg_message(conf, OPKG_NOTICE,
 988                        "Setting flags for package %s to %s\n",
 989                        pkg->name, flags);
 990      }
 991
 992      write_status_files_if_changed(conf);
 993      return 0;
 994 }
 995
 996 static int opkg_files_cmd(opkg_conf_t *conf, int argc, char **argv)
 997 {
 998      pkg_t *pkg;
 999      str_list_t *installed_files;
1000      str_list_elt_t *iter;
1001      char *pkg_version;
1002      size_t buff_len = 8192;
1003      size_t used_len;
1004      char *buff ;
1005
1006      buff = (char *)malloc(buff_len);
1007      if ( buff == NULL ) {
1008         fprintf( stderr,"%s: Unable to allocate memory \n",__FUNCTION__);
1009         return ENOMEM;
1010      }
1011
1012      if (argc < 1) {
1013           return EINVAL;
1014      }
1015
1016      pkg = pkg_hash_fetch_installed_by_name(&conf->pkg_hash,
1017                                             argv[0]);
1018      if (pkg == NULL) {
1019           opkg_message(conf, OPKG_ERROR,
1020                        "Package %s not installed.\n", argv[0]);
1021           return 0;
1022      }
1023
1024      installed_files = pkg_get_installed_files(pkg);
1025      pkg_version = pkg_version_str_alloc(pkg);
1026
1027      if (buff) {
1028      try_again:
1029           used_len = snprintf(buff, buff_len, "Package %s (%s) is installed on %s and has the following files:\n",
1030                               pkg->name, pkg_version, pkg->dest->name) + 1;
1031           if (used_len > buff_len) {
1032                buff_len *= 2;
1033                buff = realloc (buff, buff_len);
1034                goto try_again;
1035           }
1036           for (iter = installed_files->head; iter; iter = iter->next) {
1037                used_len += strlen (iter->data) + 1;
1038                while (buff_len <= used_len) {
1039                     buff_len *= 2;
1040                     buff = realloc (buff, buff_len);
1041                }
1042                strncat(buff, iter->data, buff_len);
1043                strncat(buff, "\n", buff_len);
1044           }
1045           if (opkg_cb_list) opkg_cb_list(pkg->name,
1046                                          buff,
1047                                          pkg_version_str_alloc(pkg),
1048                                          pkg->state_status,
1049                                          p_userdata);
1050           free(buff);
1051      }
1052
1053      free(pkg_version);
1054      pkg_free_installed_files(pkg);
1055
1056      return 0;
1057 }
1058
1059 static int opkg_depends_cmd(opkg_conf_t *conf, int argc, char **argv)
1060 {
1061
1062      if (argc > 0) {
1063           pkg_vec_t *available_pkgs = pkg_vec_alloc();
1064           const char *rel_str = "depends on";
1065           int i;
1066
1067           pkg_info_preinstall_check(conf);
1068
1069           if (conf->query_all)
1070                pkg_hash_fetch_available(&conf->pkg_hash, available_pkgs);
1071           else
1072                pkg_hash_fetch_all_installed(&conf->pkg_hash, available_pkgs);
1073           for (i = 0; i < argc; i++) {
1074                const char *target = argv[i];
1075                int j;
1076
1077                opkg_message(conf, OPKG_ERROR, "target=%s\n", target);
1078
1079                for (j = 0; j < available_pkgs->len; j++) {
1080                     pkg_t *pkg = available_pkgs->pkgs[j];
1081                     if (fnmatch(target, pkg->name, 0) == 0) {
1082                          int k;
1083                          int count = pkg->depends_count + pkg->pre_depends_count;
1084                          opkg_message(conf, OPKG_ERROR, "What %s (arch=%s) %s\n",
1085                                       target, pkg->architecture, rel_str);
1086                          for (k = 0; k < count; k++) {
1087                               compound_depend_t *cdepend = &pkg->depends[k];
1088                               int l;
1089                               for (l = 0; l < cdepend->possibility_count; l++) {
1090                                    depend_t *possibility = cdepend->possibilities[l];
1091                                    opkg_message(conf, OPKG_ERROR, "    %s", possibility->pkg->name);
1092                                    if (conf->verbosity > 0) {
1093                                         // char *ver = abstract_pkg_version_str_alloc(possibility->pkg);
1094                                         opkg_message(conf, OPKG_NOTICE, " %s", possibility->version);
1095                                         if (possibility->version) {
1096                                              char *typestr = NULL;
1097                                              switch (possibility->constraint) {
1098                                              case NONE: typestr = "none"; break;
1099                                              case EARLIER: typestr = "<"; break;
1100                                              case EARLIER_EQUAL: typestr = "<="; break;
1101                                              case EQUAL: typestr = "="; break;
1102                                              case LATER_EQUAL: typestr = ">="; break;
1103                                              case LATER: typestr = ">"; break;
1104                                              }
1105                                              opkg_message(conf, OPKG_NOTICE, " (%s %s)", typestr, possibility->version);
1106                                         }
1107                                         // free(ver);
1108                                    }
1109                                    opkg_message(conf, OPKG_ERROR, "\n");
1110                               }
1111                          }
1112                     }
1113                }
1114           }
1115           pkg_vec_free(available_pkgs);
1116      }
1117      return 0;
1118 }
1119
1120 enum what_field_type {
1121   WHATDEPENDS,
1122   WHATCONFLICTS,
1123   WHATPROVIDES,
1124   WHATREPLACES,
1125   WHATRECOMMENDS,
1126   WHATSUGGESTS
1127 };
1128
1129 static int opkg_what_depends_conflicts_cmd(opkg_conf_t *conf, enum what_field_type what_field_type, int recursive, int argc, char **argv)
1130 {
1131
1132      if (argc > 0) {
1133           pkg_vec_t *available_pkgs = pkg_vec_alloc();
1134           const char *rel_str = NULL;
1135           int i;
1136           int changed;
1137
1138           switch (what_field_type) {
1139           case WHATDEPENDS: rel_str = "depends on"; break;
1140           case WHATCONFLICTS: rel_str = "conflicts with"; break;
1141           case WHATSUGGESTS: rel_str = "suggests"; break;
1142           case WHATRECOMMENDS: rel_str = "recommends"; break;
1143           case WHATPROVIDES: rel_str = "provides"; break;
1144           case WHATREPLACES: rel_str = "replaces"; break;
1145           }
1146
1147           if (conf->query_all)
1148                pkg_hash_fetch_available(&conf->pkg_hash, available_pkgs);
1149           else
1150                pkg_hash_fetch_all_installed(&conf->pkg_hash, available_pkgs);
1151
1152           /* mark the root set */
1153           pkg_vec_clear_marks(available_pkgs);
1154           opkg_message(conf, OPKG_NOTICE, "Root set:\n");
1155           for (i = 0; i < argc; i++) {
1156                const char *dependee_pattern = argv[i];
1157                pkg_vec_mark_if_matches(available_pkgs, dependee_pattern);
1158           }
1159           for (i = 0; i < available_pkgs->len; i++) {
1160                pkg_t *pkg = available_pkgs->pkgs[i];
1161                if (pkg->state_flag & SF_MARKED) {
1162                     /* mark the parent (abstract) package */
1163                     pkg_mark_provides(pkg);
1164                     opkg_message(conf, OPKG_NOTICE, "  %s\n", pkg->name);
1165                }
1166           }
1167
1168           opkg_message(conf, OPKG_NOTICE, "What %s root set\n", rel_str);
1169           do {
1170                int j;
1171                changed = 0;
1172
1173                for (j = 0; j < available_pkgs->len; j++) {
1174                     pkg_t *pkg = available_pkgs->pkgs[j];
1175                     int k;
1176                     int count = ((what_field_type == WHATCONFLICTS)
1177                                  ? pkg->conflicts_count
1178                                  : pkg->pre_depends_count + pkg->depends_count + pkg->recommends_count + pkg->suggests_count);
1179                     /* skip this package if it is already marked */
1180                     if (pkg->parent->state_flag & SF_MARKED) {
1181                          continue;
1182                     }
1183                     for (k = 0; k < count; k++) {
1184                          compound_depend_t *cdepend =
1185                               (what_field_type == WHATCONFLICTS) ? &pkg->conflicts[k] : &pkg->depends[k];
1186                          int l;
1187                          for (l = 0; l < cdepend->possibility_count; l++) {
1188                               depend_t *possibility = cdepend->possibilities[l];
1189                               if (possibility->pkg->state_flag & SF_MARKED) {
1190                                    /* mark the depending package so we won't visit it again */
1191                                    pkg->state_flag |= SF_MARKED;
1192                                    pkg_mark_provides(pkg);
1193                                    changed++;
1194
1195                                    opkg_message(conf, OPKG_NOTICE, "    %s", pkg->name);
1196                                    if (conf->verbosity > 0) {
1197                                         char *ver = pkg_version_str_alloc(pkg);
1198                                         opkg_message(conf, OPKG_NOTICE, " %s", ver);
1199                                         opkg_message(conf, OPKG_NOTICE, "\t%s %s", rel_str, possibility->pkg->name);
1200                                         if (possibility->version) {
1201                                              char *typestr = NULL;
1202                                              switch (possibility->constraint) {
1203                                              case NONE: typestr = "none"; break;
1204                                              case EARLIER: typestr = "<"; break;
1205                                              case EARLIER_EQUAL: typestr = "<="; break;
1206                                              case EQUAL: typestr = "="; break;
1207                                              case LATER_EQUAL: typestr = ">="; break;
1208                                              case LATER: typestr = ">"; break;
1209                                              }
1210                                              opkg_message(conf, OPKG_NOTICE, " (%s %s)", typestr, possibility->version);
1211                                         }
1212                                         free(ver);
1213                                         if (!pkg_dependence_satisfiable(conf, possibility))
1214                                              opkg_message(conf, OPKG_NOTICE, " unsatisfiable");
1215                                    }
1216                                    opkg_message(conf, OPKG_NOTICE, "\n");
1217                                    goto next_package;
1218                               }
1219                          }
1220                     }
1221                next_package:
1222                     ;
1223                }
1224           } while (changed && recursive);
1225           pkg_vec_free(available_pkgs);
1226      }
1227
1228      return 0;
1229 }
1230
1231 int pkg_mark_provides(pkg_t *pkg)
1232 {
1233      int provides_count = pkg->provides_count;
1234      abstract_pkg_t **provides = pkg->provides;
1235      int i;
1236      pkg->parent->state_flag |= SF_MARKED;
1237      for (i = 0; i < provides_count; i++) {
1238           provides[i]->state_flag |= SF_MARKED;
1239      }
1240      return 0;
1241 }
1242
1243 static int opkg_whatdepends_recursively_cmd(opkg_conf_t *conf, int argc, char **argv)
1244 {
1245      return opkg_what_depends_conflicts_cmd(conf, WHATDEPENDS, 1, argc, argv);
1246 }
1247 static int opkg_whatdepends_cmd(opkg_conf_t *conf, int argc, char **argv)
1248 {
1249      return opkg_what_depends_conflicts_cmd(conf, WHATDEPENDS, 0, argc, argv);
1250 }
1251
1252 static int opkg_whatsuggests_cmd(opkg_conf_t *conf, int argc, char **argv)
1253 {
1254      return opkg_what_depends_conflicts_cmd(conf, WHATSUGGESTS, 0, argc, argv);
1255 }
1256
1257 static int opkg_whatrecommends_cmd(opkg_conf_t *conf, int argc, char **argv)
1258 {
1259      return opkg_what_depends_conflicts_cmd(conf, WHATRECOMMENDS, 0, argc, argv);
1260 }
1261
1262 static int opkg_whatconflicts_cmd(opkg_conf_t *conf, int argc, char **argv)
1263 {
1264      return opkg_what_depends_conflicts_cmd(conf, WHATCONFLICTS, 0, argc, argv);
1265 }
1266
1267 static int opkg_what_provides_replaces_cmd(opkg_conf_t *conf, enum what_field_type what_field_type, int argc, char **argv)
1268 {
1269
1270      if (argc > 0) {
1271           pkg_vec_t *available_pkgs = pkg_vec_alloc();
1272           const char *rel_str = (what_field_type == WHATPROVIDES ? "provides" : "replaces");
1273           int i;
1274
1275           pkg_info_preinstall_check(conf);
1276
1277           if (conf->query_all)
1278                pkg_hash_fetch_available(&conf->pkg_hash, available_pkgs);
1279           else
1280                pkg_hash_fetch_all_installed(&conf->pkg_hash, available_pkgs);
1281           for (i = 0; i < argc; i++) {
1282                const char *target = argv[i];
1283                int j;
1284
1285                opkg_message(conf, OPKG_ERROR, "What %s %s\n",
1286                             rel_str, target);
1287                for (j = 0; j < available_pkgs->len; j++) {
1288                     pkg_t *pkg = available_pkgs->pkgs[j];
1289                     int k;
1290                     int count = (what_field_type == WHATPROVIDES) ? pkg->provides_count : pkg->replaces_count;
1291                     for (k = 0; k < count; k++) {
1292                          abstract_pkg_t *apkg =
1293                               ((what_field_type == WHATPROVIDES)
1294                                ? pkg->provides[k]
1295                                : pkg->replaces[k]);
1296                          if (fnmatch(target, apkg->name, 0) == 0) {
1297                               opkg_message(conf, OPKG_ERROR, "    %s", pkg->name);
1298                               if (strcmp(target, apkg->name) != 0)
1299                                    opkg_message(conf, OPKG_ERROR, "\t%s %s\n", rel_str, apkg->name);
1300                               opkg_message(conf, OPKG_ERROR, "\n");
1301                          }
1302                     }
1303                }
1304           }
1305           pkg_vec_free(available_pkgs);
1306      }
1307      return 0;
1308 }
1309
1310 static int opkg_whatprovides_cmd(opkg_conf_t *conf, int argc, char **argv)
1311 {
1312      return opkg_what_provides_replaces_cmd(conf, WHATPROVIDES, argc, argv);
1313 }
1314
1315 static int opkg_whatreplaces_cmd(opkg_conf_t *conf, int argc, char **argv)
1316 {
1317      return opkg_what_provides_replaces_cmd(conf, WHATREPLACES, argc, argv);
1318 }
1319
1320 static int opkg_search_cmd(opkg_conf_t *conf, int argc, char **argv)
1321 {
1322      int i;
1323
1324      pkg_vec_t *installed;
1325      pkg_t *pkg;
1326      str_list_t *installed_files;
1327      str_list_elt_t *iter;
1328      char *installed_file;
1329
1330      if (argc < 1) {
1331           return EINVAL;
1332      }
1333
1334      installed = pkg_vec_alloc();
1335      pkg_hash_fetch_all_installed(&conf->pkg_hash, installed);
1336
1337      for (i=0; i < installed->len; i++) {
1338           pkg = installed->pkgs[i];
1339
1340           installed_files = pkg_get_installed_files(pkg);
1341
1342           for (iter = installed_files->head; iter; iter = iter->next) {
1343                installed_file = iter->data;
1344                if (fnmatch(argv[0], installed_file, 0)==0)  {
1345                         if (opkg_cb_list) opkg_cb_list(pkg->name,
1346                                                        installed_file,
1347                                                        pkg_version_str_alloc(pkg),
1348                                                        pkg->state_status, p_userdata);
1349                }
1350           }
1351
1352           pkg_free_installed_files(pkg);
1353      }
1354
1355      /* XXX: CLEANUP: It's not obvious from the name of
1356         pkg_hash_fetch_all_installed that we need to call
1357         pkg_vec_free to avoid a memory leak. */
1358      pkg_vec_free(installed);
1359
1360      return 0;
1361 }
1362
1363 static int opkg_compare_versions_cmd(opkg_conf_t *conf, int argc, char **argv)
1364 {
1365      if (argc == 3) {
1366           /* this is a bit gross */
1367           struct pkg p1, p2;
1368           parseVersion(&p1, argv[0]);
1369           parseVersion(&p2, argv[2]);
1370           return pkg_version_satisfied(&p1, &p2, argv[1]);
1371      } else {
1372           opkg_message(conf, OPKG_ERROR,
1373                        "opkg compare_versions <v1> <op> <v2>\n"
1374                        "<op> is one of <= >= << >> =\n");
1375           return -1;
1376      }
1377 }
1378
1379 #ifndef HOST_CPU_STR
1380 #define HOST_CPU_STR__(X) #X
1381 #define HOST_CPU_STR_(X) HOST_CPU_STR__(X)
1382 #define HOST_CPU_STR HOST_CPU_STR_(HOST_CPU_FOO)
1383 #endif
1384
1385 static int opkg_print_architecture_cmd(opkg_conf_t *conf, int argc, char **argv)
1386 {
1387      nv_pair_list_elt_t *l;
1388
1389      l = conf->arch_list.head;
1390      while (l) {
1391           nv_pair_t *nv = l->data;
1392           printf("arch %s %s\n", nv->name, nv->value);
1393           l = l->next;
1394      }
1395      return 0;
1396 }
1397
1398