libopkg/pkg_hash.c

   1 /* opkg_hash.c - the opkg package management system
   2
   3    Steven M. Ayer
   4
   5    Copyright (C) 2002 Compaq Computer Corporation
   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 <stdio.h>
  19
  20 #include "hash_table.h"
  21 #include "pkg.h"
  22 #include "opkg_message.h"
  23 #include "pkg_vec.h"
  24 #include "pkg_hash.h"
  25 #include "parse_util.h"
  26 #include "pkg_parse.h"
  27 #include "opkg_utils.h"
  28 #include "sprintf_alloc.h"
  29 #include "file_util.h"
  30 #include "libbb/libbb.h"
  31 #include "libbb/gzip.h"
  32
  33 void
  34 pkg_hash_init(void)
  35 {
  36         hash_table_init("pkg-hash", &conf->pkg_hash,
  37                         OPKG_CONF_DEFAULT_HASH_LEN);
  38 }
  39
  40 static void
  41 free_pkgs(const char *key, void *entry, void *data)
  42 {
  43         int i;
  44         abstract_pkg_t *ab_pkg;
  45
  46         /* Each entry in the hash table is an abstract package, which contains
  47          * a list of packages that provide the abstract package.
  48          */
  49
  50         ab_pkg = (abstract_pkg_t*) entry;
  51
  52         if (ab_pkg->pkgs) {
  53                 for (i = 0; i < ab_pkg->pkgs->len; i++) {
  54                         pkg_deinit (ab_pkg->pkgs->pkgs[i]);
  55                         free (ab_pkg->pkgs->pkgs[i]);
  56                 }
  57         }
  58
  59         abstract_pkg_vec_free (ab_pkg->provided_by);
  60         abstract_pkg_vec_free (ab_pkg->replaced_by);
  61         pkg_vec_free (ab_pkg->pkgs);
  62         free (ab_pkg->depended_upon_by);
  63         free (ab_pkg->name);
  64         free (ab_pkg);
  65 }
  66
  67 void
  68 pkg_hash_deinit(void)
  69 {
  70         hash_table_foreach(&conf->pkg_hash, free_pkgs, NULL);
  71         hash_table_deinit(&conf->pkg_hash);
  72 }
  73
  74 int
  75 dist_hash_add_from_file(const char *lists_dir, pkg_src_t *dist)
  76 {
  77         nv_pair_list_elt_t *l;
  78         char *list_file, *subname;
  79
  80         list_for_each_entry(l , &conf->arch_list.head, node) {
  81                 nv_pair_t *nv = (nv_pair_t *)l->data;
  82                 sprintf_alloc(&subname, "%s-%s", dist->name, nv->name);
  83                 sprintf_alloc(&list_file, "%s/%s", lists_dir, subname);
  84
  85                 if (file_exists(list_file)) {
  86                         if (pkg_hash_add_from_file(list_file, dist, NULL, 0)) {
  87                                 free(list_file);
  88                                 return -1;
  89                         }
  90                         pkg_src_list_append (&conf->pkg_src_list, subname, dist->value, "__dummy__", 0);
  91                 }
  92
  93                 free(list_file);
  94         }
  95
  96         return 0;
  97 }
  98
  99
 100 int
 101 pkg_hash_add_from_file(const char *file_name,
 102                         pkg_src_t *src, pkg_dest_t *dest, int is_status_file)
 103 {
 104         pkg_t *pkg;
 105         FILE *fp;
 106         char *buf;
 107         const size_t len = 4096;
 108         int ret = 0;
 109         struct gzip_handle zh;
 110
 111         if (src && src->gzip) {
 112                 fp = gzip_fdopen(&zh, file_name);
 113         }
 114         else {
 115                 fp = fopen(file_name, "r");
 116         }
 117
 118         if (fp == NULL) {
 119                 opkg_perror(ERROR, "Failed to open %s", file_name);
 120                 return -1;
 121         }
 122
 123         buf = xmalloc(len);
 124
 125         do {
 126                 pkg = pkg_new();
 127                 pkg->src = src;
 128                 pkg->dest = dest;
 129
 130                 ret = parse_from_stream_nomalloc(pkg_parse_line, pkg, fp, 0,
 131                                 &buf, len);
 132
 133                 if (pkg->name == NULL) {
 134                         /* probably just a blank line */
 135                         ret = 1;
 136                 }
 137
 138                 if (ret) {
 139                         pkg_deinit (pkg);
 140                         free(pkg);
 141                         if (ret == -1)
 142                                 break;
 143                         if (ret == 1)
 144                                 /* Probably a blank line, continue parsing. */
 145                                 ret = 0;
 146                         continue;
 147                 }
 148
 149                 if (!pkg->architecture || !pkg->arch_priority) {
 150                         char *version_str = pkg_version_str_alloc(pkg);
 151                         opkg_msg(NOTICE, "Package %s version %s has no "
 152                                         "valid architecture, ignoring.\n",
 153                                         pkg->name, version_str);
 154                         free(version_str);
 155                         continue;
 156                 }
 157
 158                 hash_insert_pkg(pkg, is_status_file);
 159
 160         } while (!feof(fp));
 161
 162         free(buf);
 163         fclose(fp);
 164
 165         if (src && src->gzip)
 166                 gzip_close(&zh);
 167
 168         return ret;
 169 }
 170
 171 /*
 172  * Load in feed files from the cached "src" and/or "src/gz" locations.
 173  */
 174 int
 175 pkg_hash_load_feeds(void)
 176 {
 177         pkg_src_list_elt_t *iter;
 178         pkg_src_t *src, *subdist;
 179         char *list_file, *lists_dir;
 180
 181         opkg_msg(INFO, "\n");
 182
 183         lists_dir = conf->restrict_to_default_dest ?
 184                 conf->default_dest->lists_dir : conf->lists_dir;
 185
 186         for (iter = void_list_first(&conf->pkg_src_list); iter;
 187                         iter = void_list_next(&conf->pkg_src_list, iter)) {
 188
 189                 src = (pkg_src_t *)iter->data;
 190
 191                 sprintf_alloc(&list_file, "%s/%s", lists_dir, src->name);
 192
 193                 if (file_exists(list_file)) {
 194                         if (pkg_hash_add_from_file(list_file, src, NULL, 0)) {
 195                                 free(list_file);
 196                                 return -1;
 197                         }
 198                 }
 199                 free(list_file);
 200         }
 201
 202         return 0;
 203 }
 204
 205 /*
 206  * Load in status files from the configured "dest"s.
 207  */
 208 int
 209 pkg_hash_load_status_files(void)
 210 {
 211         pkg_dest_list_elt_t *iter;
 212         pkg_dest_t *dest;
 213
 214         opkg_msg(INFO, "\n");
 215
 216         for (iter = void_list_first(&conf->pkg_dest_list); iter;
 217                         iter = void_list_next(&conf->pkg_dest_list, iter)) {
 218
 219                 dest = (pkg_dest_t *)iter->data;
 220
 221                 if (file_exists(dest->status_file_name)) {
 222                         if (pkg_hash_add_from_file(dest->status_file_name, NULL, dest, 1))
 223                                 return -1;
 224                 }
 225         }
 226
 227         return 0;
 228 }
 229
 230 static abstract_pkg_t *
 231 abstract_pkg_fetch_by_name(const char * pkg_name)
 232 {
 233         return (abstract_pkg_t *)hash_table_get(&conf->pkg_hash, pkg_name);
 234 }
 235
 236 pkg_t *
 237 pkg_hash_fetch_best_installation_candidate(abstract_pkg_t *apkg,
 238                 int (*constraint_fcn)(pkg_t *pkg, void *cdata),
 239                 void *cdata, int quiet)
 240 {
 241      int i, j;
 242      int nprovides = 0;
 243      int nmatching = 0;
 244      int wrong_arch_found = 0;
 245      pkg_vec_t *matching_pkgs;
 246      abstract_pkg_vec_t *matching_apkgs;
 247      abstract_pkg_vec_t *provided_apkg_vec;
 248      abstract_pkg_t **provided_apkgs;
 249      abstract_pkg_vec_t *providers;
 250      pkg_t *latest_installed_parent = NULL;
 251      pkg_t *latest_matching = NULL;
 252      pkg_t *priorized_matching = NULL;
 253      pkg_t *held_pkg = NULL;
 254      pkg_t *good_pkg_by_name = NULL;
 255
 256      if (apkg == NULL || apkg->provided_by == NULL || (apkg->provided_by->len == 0))
 257           return NULL;
 258
 259      matching_pkgs = pkg_vec_alloc();
 260      matching_apkgs = abstract_pkg_vec_alloc();
 261      providers = abstract_pkg_vec_alloc();
 262
 263      opkg_msg(DEBUG, "Best installation candidate for %s:\n", apkg->name);
 264
 265      provided_apkg_vec = apkg->provided_by;
 266      nprovides = provided_apkg_vec->len;
 267      provided_apkgs = provided_apkg_vec->pkgs;
 268      if (nprovides > 1)
 269           opkg_msg(DEBUG, "apkg=%s nprovides=%d.\n", apkg->name, nprovides);
 270
 271      /* accumulate all the providers */
 272      for (i = 0; i < nprovides; i++) {
 273           abstract_pkg_t *provider_apkg = provided_apkgs[i];
 274           opkg_msg(DEBUG, "Adding %s to providers.\n", provider_apkg->name);
 275           abstract_pkg_vec_insert(providers, provider_apkg);
 276      }
 277      nprovides = providers->len;
 278
 279      for (i = 0; i < nprovides; i++) {
 280           abstract_pkg_t *provider_apkg = abstract_pkg_vec_get(providers, i);
 281           abstract_pkg_t *replacement_apkg = NULL;
 282           pkg_vec_t *vec;
 283
 284           if (provider_apkg->replaced_by && provider_apkg->replaced_by->len) {
 285                replacement_apkg = provider_apkg->replaced_by->pkgs[0];
 286                if (provider_apkg->replaced_by->len > 1) {
 287                     opkg_msg(NOTICE, "Multiple replacers for %s, "
 288                                 "using first one (%s).\n",
 289                                 provider_apkg->name, replacement_apkg->name);
 290                }
 291           }
 292
 293           if (replacement_apkg)
 294                opkg_msg(DEBUG, "replacement_apkg=%s for provider_apkg=%s.\n",
 295                             replacement_apkg->name, provider_apkg->name);
 296
 297           if (replacement_apkg && (replacement_apkg != provider_apkg)) {
 298                if (abstract_pkg_vec_contains(providers, replacement_apkg))
 299                     continue;
 300                else
 301                     provider_apkg = replacement_apkg;
 302           }
 303
 304           if (!(vec = provider_apkg->pkgs)) {
 305                opkg_msg(DEBUG, "No pkgs for provider_apkg %s.\n",
 306                                provider_apkg->name);
 307                continue;
 308           }
 309
 310
 311           /* now check for supported architecture */
 312           {
 313                int max_count = 0;
 314
 315                /* count packages matching max arch priority and keep track of last one */
 316                for (j=0; j<vec->len; j++) {
 317                     pkg_t *maybe = vec->pkgs[j];
 318                     opkg_msg(DEBUG, "%s arch=%s arch_priority=%d version=%s.\n",
 319                                  maybe->name, maybe->architecture,
 320                                  maybe->arch_priority, maybe->version);
 321                     /* We make sure not to add the same package twice. Need to search for the reason why
 322                        they show up twice sometimes. */
 323                     if ((maybe->arch_priority > 0) && (! pkg_vec_contains(matching_pkgs, maybe))) {
 324                          max_count++;
 325                          abstract_pkg_vec_insert(matching_apkgs, maybe->parent);
 326                          pkg_vec_insert(matching_pkgs, maybe);
 327                     }
 328                }
 329
 330                 if (vec->len > 0 && matching_pkgs->len < 1)
 331                         wrong_arch_found = 1;
 332           }
 333      }
 334
 335      if (matching_pkgs->len < 1) {
 336           if (wrong_arch_found)
 337                 opkg_msg(ERROR, "Packages for %s found, but"
 338                         " incompatible with the architectures configured\n",
 339                         apkg->name);
 340           pkg_vec_free(matching_pkgs);
 341           abstract_pkg_vec_free(matching_apkgs);
 342           abstract_pkg_vec_free(providers);
 343           return NULL;
 344      }
 345
 346
 347      if (matching_pkgs->len > 1)
 348           pkg_vec_sort(matching_pkgs, pkg_name_version_and_architecture_compare);
 349      if (matching_apkgs->len > 1)
 350           abstract_pkg_vec_sort(matching_pkgs, abstract_pkg_name_compare);
 351
 352      for (i = 0; i < matching_pkgs->len; i++) {
 353           pkg_t *matching = matching_pkgs->pkgs[i];
 354           if (constraint_fcn(matching, cdata)) {
 355              opkg_msg(DEBUG, "Candidate: %s %s.\n",
 356                              matching->name, matching->version) ;
 357              good_pkg_by_name = matching;
 358              /* It has been provided by hand, so it is what user want */
 359              if (matching->provided_by_hand == 1)
 360                 break;
 361           }
 362      }
 363
 364
 365      for (i = 0; i < matching_pkgs->len; i++) {
 366           pkg_t *matching = matching_pkgs->pkgs[i];
 367           latest_matching = matching;
 368           if (matching->parent->state_status == SS_INSTALLED || matching->parent->state_status == SS_UNPACKED)
 369                latest_installed_parent = matching;
 370           if (matching->state_flag & (SF_HOLD|SF_PREFER)) {
 371                if (held_pkg)
 372                     opkg_msg(NOTICE, "Multiple packages (%s and %s) providing"
 373                                 " same name marked HOLD or PREFER. "
 374                                 "Using latest.\n",
 375                                 held_pkg->name, matching->name);
 376                held_pkg = matching;
 377           }
 378      }
 379
 380      if (!good_pkg_by_name && !held_pkg && !latest_installed_parent && matching_apkgs->len > 1 && !quiet) {
 381           int prio = 0;
 382           for (i = 0; i < matching_pkgs->len; i++) {
 383               pkg_t *matching = matching_pkgs->pkgs[i];
 384                   if (matching->arch_priority > prio) {
 385                       priorized_matching = matching;
 386                       prio = matching->arch_priority;
 387                       opkg_msg(DEBUG, "Match %s with priority %i.\n",
 388                                 matching->name, prio);
 389                   }
 390               }
 391
 392           }
 393
 394      if (conf->verbosity >= INFO && matching_apkgs->len > 1) {
 395           opkg_msg(INFO, "%d matching pkgs for apkg=%s:\n",
 396                                 matching_pkgs->len, apkg->name);
 397           for (i = 0; i < matching_pkgs->len; i++) {
 398                pkg_t *matching = matching_pkgs->pkgs[i];
 399                opkg_msg(INFO, "%s %s %s\n",
 400                         matching->name, matching->version,
 401                         matching->architecture);
 402           }
 403      }
 404
 405      nmatching = matching_apkgs->len;
 406
 407      pkg_vec_free(matching_pkgs);
 408      abstract_pkg_vec_free(matching_apkgs);
 409      abstract_pkg_vec_free(providers);
 410
 411      if (good_pkg_by_name) {   /* We found a good candidate, we will install it */
 412           return good_pkg_by_name;
 413      }
 414      if (held_pkg) {
 415           opkg_msg(INFO, "Using held package %s.\n", held_pkg->name);
 416           return held_pkg;
 417      }
 418      if (latest_installed_parent) {
 419           opkg_msg(INFO, "Using latest version of installed package %s.\n",
 420                         latest_installed_parent->name);
 421           return latest_installed_parent;
 422      }
 423      if (priorized_matching) {
 424           opkg_msg(INFO, "Using priorized matching %s %s %s.\n",
 425                         priorized_matching->name, priorized_matching->version,
 426                         priorized_matching->architecture);
 427           return priorized_matching;
 428      }
 429      if (nmatching > 1) {
 430           opkg_msg(INFO, "No matching pkg out of %d matching_apkgs.\n",
 431                         nmatching);
 432           return NULL;
 433      }
 434      if (latest_matching) {
 435           opkg_msg(INFO, "Using latest matching %s %s %s.\n",
 436                         latest_matching->name, latest_matching->version,
 437                         latest_matching->architecture);
 438           return latest_matching;
 439      }
 440      return NULL;
 441 }
 442
 443 static int
 444 pkg_name_constraint_fcn(pkg_t *pkg, void *cdata)
 445 {
 446         const char *name = (const char *)cdata;
 447
 448         if (strcmp(pkg->name, name) == 0)
 449                 return 1;
 450         else
 451                 return 0;
 452 }
 453
 454 static pkg_vec_t *
 455 pkg_vec_fetch_by_name(const char *pkg_name)
 456 {
 457         abstract_pkg_t * ab_pkg;
 458
 459         if(!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
 460                 return NULL;
 461
 462         if (ab_pkg->pkgs)
 463                 return ab_pkg->pkgs;
 464
 465         if (ab_pkg->provided_by) {
 466                 abstract_pkg_t *abpkg =  abstract_pkg_vec_get(ab_pkg->provided_by, 0);
 467                 if (abpkg != NULL)
 468                         return abpkg->pkgs;
 469                 else
 470                         return ab_pkg->pkgs;
 471         }
 472
 473         return NULL;
 474 }
 475
 476
 477 pkg_t *
 478 pkg_hash_fetch_best_installation_candidate_by_name(const char *name)
 479 {
 480         abstract_pkg_t *apkg = NULL;
 481
 482         if (!(apkg = abstract_pkg_fetch_by_name(name)))
 483                 return NULL;
 484
 485         return pkg_hash_fetch_best_installation_candidate(apkg,
 486                                 pkg_name_constraint_fcn, apkg->name, 0);
 487 }
 488
 489
 490 pkg_t *
 491 pkg_hash_fetch_by_name_version(const char *pkg_name, const char * version)
 492 {
 493         pkg_vec_t * vec;
 494         int i;
 495         char *version_str = NULL;
 496
 497         if(!(vec = pkg_vec_fetch_by_name(pkg_name)))
 498                 return NULL;
 499
 500         for(i = 0; i < vec->len; i++) {
 501                 version_str = pkg_version_str_alloc(vec->pkgs[i]);
 502                 if(!strcmp(version_str, version)) {
 503                         free(version_str);
 504                         break;
 505                 }
 506                 free(version_str);
 507         }
 508
 509         if(i == vec->len)
 510                 return NULL;
 511
 512         return vec->pkgs[i];
 513 }
 514
 515 pkg_t *
 516 pkg_hash_fetch_installed_by_name_dest(const char *pkg_name, pkg_dest_t *dest)
 517 {
 518         pkg_vec_t * vec;
 519         int i;
 520
 521         if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
 522                 return NULL;
 523         }
 524
 525         for (i = 0; i < vec->len; i++)
 526                 if((vec->pkgs[i]->state_status == SS_INSTALLED
 527                                 || vec->pkgs[i]->state_status == SS_UNPACKED)
 528                                 && vec->pkgs[i]->dest == dest) {
 529                         return vec->pkgs[i];
 530         }
 531
 532         return NULL;
 533 }
 534
 535 pkg_t *
 536 pkg_hash_fetch_installed_by_name(const char *pkg_name)
 537 {
 538         pkg_vec_t * vec;
 539         int i;
 540
 541         if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
 542                 return NULL;
 543         }
 544
 545         for (i = 0; i < vec->len; i++) {
 546                 if (vec->pkgs[i]->state_status == SS_INSTALLED
 547                                 || vec->pkgs[i]->state_status == SS_UNPACKED) {
 548                         return vec->pkgs[i];
 549                 }
 550         }
 551
 552         return NULL;
 553 }
 554
 555
 556 static void
 557 pkg_hash_fetch_available_helper(const char *pkg_name, void *entry, void *data)
 558 {
 559         int j;
 560         abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
 561         pkg_vec_t *all = (pkg_vec_t *)data;
 562         pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 563
 564         if (!pkg_vec)
 565                 return;
 566
 567         for (j = 0; j < pkg_vec->len; j++) {
 568                 pkg_t *pkg = pkg_vec->pkgs[j];
 569                 pkg_vec_insert(all, pkg);
 570         }
 571 }
 572
 573 void
 574 pkg_hash_fetch_available(pkg_vec_t *all)
 575 {
 576         hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_available_helper,
 577                         all);
 578 }
 579
 580 static void
 581 pkg_hash_fetch_all_installed_helper(const char *pkg_name, void *entry, void *data)
 582 {
 583         abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
 584         pkg_vec_t *all = (pkg_vec_t *)data;
 585         pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 586         int j;
 587
 588         if (!pkg_vec)
 589                 return;
 590
 591         for (j = 0; j < pkg_vec->len; j++) {
 592                 pkg_t *pkg = pkg_vec->pkgs[j];
 593                 if (pkg->state_status == SS_INSTALLED
 594                                 || pkg->state_status == SS_UNPACKED)
 595                         pkg_vec_insert(all, pkg);
 596         }
 597 }
 598
 599 void
 600 pkg_hash_fetch_all_installed(pkg_vec_t *all)
 601 {
 602         hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_all_installed_helper,
 603                         all);
 604 }
 605
 606 /*
 607  * This assumes that the abstract pkg doesn't exist.
 608  */
 609 static abstract_pkg_t *
 610 add_new_abstract_pkg_by_name(const char *pkg_name)
 611 {
 612         abstract_pkg_t *ab_pkg;
 613
 614         ab_pkg = abstract_pkg_new();
 615
 616         ab_pkg->name = xstrdup(pkg_name);
 617         hash_table_insert(&conf->pkg_hash, pkg_name, ab_pkg);
 618
 619         return ab_pkg;
 620 }
 621
 622
 623 abstract_pkg_t *
 624 ensure_abstract_pkg_by_name(const char *pkg_name)
 625 {
 626         abstract_pkg_t * ab_pkg;
 627
 628         if (!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
 629                 ab_pkg = add_new_abstract_pkg_by_name(pkg_name);
 630
 631         return ab_pkg;
 632 }
 633
 634 void
 635 hash_insert_pkg(pkg_t *pkg, int set_status)
 636 {
 637         abstract_pkg_t * ab_pkg;
 638
 639         ab_pkg = ensure_abstract_pkg_by_name(pkg->name);
 640         if (!ab_pkg->pkgs)
 641                 ab_pkg->pkgs = pkg_vec_alloc();
 642
 643         if (pkg->state_status == SS_INSTALLED) {
 644                 ab_pkg->state_status = SS_INSTALLED;
 645         } else if (pkg->state_status == SS_UNPACKED) {
 646                 ab_pkg->state_status = SS_UNPACKED;
 647         }
 648
 649         buildDepends(pkg);
 650
 651         buildProvides(ab_pkg, pkg);
 652
 653         /* Need to build the conflicts graph before replaces for correct
 654          * calculation of replaced_by relation.
 655          */
 656         buildConflicts(pkg);
 657
 658         buildReplaces(ab_pkg, pkg);
 659
 660         buildDependedUponBy(pkg, ab_pkg);
 661
 662         pkg_vec_insert_merge(ab_pkg->pkgs, pkg, set_status);
 663         pkg->parent = ab_pkg;
 664 }
 665
 666 static const char *
 667 strip_offline_root(const char *file_name)
 668 {
 669         unsigned int len;
 670
 671         if (conf->offline_root) {
 672                 len = strlen(conf->offline_root);
 673                 if (strncmp(file_name, conf->offline_root, len) == 0)
 674                         file_name += len;
 675         }
 676
 677         return file_name;
 678 }
 679
 680 void
 681 file_hash_remove(const char *file_name)
 682 {
 683         file_name = strip_offline_root(file_name);
 684         hash_table_remove(&conf->file_hash, file_name);
 685 }
 686
 687 pkg_t *
 688 file_hash_get_file_owner(const char *file_name)
 689 {
 690         file_name = strip_offline_root(file_name);
 691         return hash_table_get(&conf->file_hash, file_name);
 692 }
 693
 694 void
 695 file_hash_set_file_owner(const char *file_name, pkg_t *owning_pkg)
 696 {
 697         pkg_t *old_owning_pkg;
 698         int file_name_len = strlen(file_name);
 699
 700         if (file_name[file_name_len -1] == '/')
 701                 return;
 702
 703         file_name = strip_offline_root(file_name);
 704
 705         old_owning_pkg = hash_table_get(&conf->file_hash, file_name);
 706         hash_table_insert(&conf->file_hash, file_name, owning_pkg);
 707
 708         if (old_owning_pkg) {
 709                 pkg_get_installed_files(old_owning_pkg);
 710                 str_list_remove_elt(old_owning_pkg->installed_files, file_name);
 711                 pkg_free_installed_files(old_owning_pkg);
 712
 713                 /* mark this package to have its filelist written */
 714                 old_owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 715                 owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 716         }
 717 }