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 "includes.h"
  19 #include <errno.h>
  20 #include <ctype.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23
  24 #include "hash_table.h"
  25 #include "pkg.h"
  26 #include "opkg_message.h"
  27 #include "pkg_vec.h"
  28 #include "pkg_hash.h"
  29 #include "pkg_parse.h"
  30 #include "opkg_utils.h"
  31 #include "libbb/libbb.h"
  32
  33 static abstract_pkg_t * add_new_abstract_pkg_by_name(hash_table_t * hash, const char * pkg_name);
  34
  35 /*
  36  * this will talk to both feeds-lists files and installed status files
  37  * example api:
  38  *
  39  * hash_table_t hash;
  40  * pkg_hash_init(name, &hash, 1000);
  41  * pkg_hash_add_from_file(<feed filename>);
  42  *
  43  * the query function is just there as a shell to prove to me that this
  44  * sort of works, but isn't far from doing something useful
  45  *
  46  * -sma, 12/21/01
  47  * modified: CDW 3 Jan. 2002
  48  */
  49
  50
  51 int pkg_hash_init(const char *name, hash_table_t *hash, int len)
  52 {
  53   return hash_table_init(name, hash, len);
  54 }
  55
  56 void free_pkgs (const char *key, void *entry, void *data)
  57 {
  58   int i;
  59   abstract_pkg_t *ab_pkg;
  60
  61   /* each entry in the hash table is an abstract package, which contains a list
  62    * of packages that provide the abstract package */
  63
  64   ab_pkg = (abstract_pkg_t*) entry;
  65
  66   if (ab_pkg->pkgs)
  67   {
  68     for (i = 0; i < ab_pkg->pkgs->len; i++)
  69     {
  70       pkg_deinit (ab_pkg->pkgs->pkgs[i]);
  71       free (ab_pkg->pkgs->pkgs[i]);
  72     }
  73   }
  74
  75   abstract_pkg_vec_free (ab_pkg->provided_by);
  76   abstract_pkg_vec_free (ab_pkg->replaced_by);
  77   pkg_vec_free (ab_pkg->pkgs);
  78   free (ab_pkg->depended_upon_by);
  79   free (ab_pkg->name);
  80   free (ab_pkg);
  81 }
  82
  83 void pkg_hash_deinit(hash_table_t *hash)
  84 {
  85   hash_table_foreach (hash, free_pkgs, NULL);
  86   hash_table_deinit(hash);
  87 }
  88
  89
  90 /* Find the default arch for a given package status file if none is given. */
  91 static char *pkg_get_default_arch(opkg_conf_t *conf)
  92 {
  93      nv_pair_list_elt_t *l;
  94      char *def_arch = HOST_CPU_STR;             /* Default arch */
  95      int def_prio = 0;                          /* Other archs override this */
  96
  97      list_for_each_entry(l , &conf->arch_list.head, node) {
  98           nv_pair_t *nv = (nv_pair_t *)l->data;
  99           int priority = strtol(nv->value, NULL, 0);
 100
 101           /* Check if this arch has higher priority, and is valid */
 102           if ((priority > def_prio) &&
 103               (strcmp(nv->name, "all")) && (strcmp(nv->name, "noarch"))) {
 104                /* Our new default */
 105                def_prio = priority;
 106                def_arch = nv->name;
 107           }
 108      }
 109
 110      return xstrdup(def_arch);
 111 }
 112
 113 int pkg_hash_add_from_file(opkg_conf_t *conf, const char *file_name,
 114                            pkg_src_t *src, pkg_dest_t *dest, int is_status_file)
 115 {
 116      hash_table_t *hash = &conf->pkg_hash;
 117      char **raw;
 118      char **raw_start;
 119      pkg_t *pkg;
 120
 121      raw = raw_start = read_raw_pkgs_from_file(file_name);
 122      if (!raw)
 123         return -ENOMEM;
 124
 125      while(*raw){         /* don't worry, we'll increment raw in the parsing function */
 126           pkg = pkg_new();
 127
 128           if (pkg_parse_raw(pkg, &raw, src, dest) == 0) {
 129                if (!pkg->architecture) {
 130                     char *version_str = pkg_version_str_alloc(pkg);
 131                     pkg->architecture = pkg_get_default_arch(conf);
 132                     opkg_message(conf, OPKG_ERROR, "Package %s version %s has no architecture specified, defaulting to %s.\n",
 133                                  pkg->name, version_str, pkg->architecture);
 134                     free(version_str);
 135                }
 136                hash_insert_pkg(hash, pkg, is_status_file,conf);
 137           } else {
 138                pkg_deinit (pkg);
 139                free(pkg);
 140           }
 141      }
 142
 143      /* XXX: CLEANUP: I'd like a cleaner interface for cleaning up
 144         memory after read_raw_pkgs_from_file */
 145      raw = raw_start;
 146      while (*raw) {
 147           free(*raw++);
 148      }
 149      free(raw_start);
 150      return 0;
 151 }
 152
 153 abstract_pkg_t * abstract_pkg_fetch_by_name(hash_table_t * hash, const char * pkg_name)
 154 {
 155   return (abstract_pkg_t *)hash_table_get(hash, pkg_name);
 156 }
 157
 158 abstract_pkg_vec_t *pkg_hash_fetch_all_installation_candidates(hash_table_t *hash, const char *name)
 159 {
 160     abstract_pkg_t *apkg = abstract_pkg_fetch_by_name(hash, name);
 161     if (apkg)
 162        return NULL;
 163     return apkg->provided_by;
 164 }
 165
 166
 167 pkg_t *pkg_hash_fetch_best_installation_candidate(opkg_conf_t *conf, abstract_pkg_t *apkg,
 168                                                   int (*constraint_fcn)(pkg_t *pkg, void *cdata), void *cdata, int quiet, int *err)
 169 {
 170      int i;
 171      int nprovides = 0;
 172      int nmatching = 0;
 173      pkg_vec_t *matching_pkgs = pkg_vec_alloc();
 174      abstract_pkg_vec_t *matching_apkgs = abstract_pkg_vec_alloc();
 175      abstract_pkg_vec_t *provided_apkg_vec;
 176      abstract_pkg_t **provided_apkgs;
 177      abstract_pkg_vec_t *providers = abstract_pkg_vec_alloc();
 178      pkg_t *latest_installed_parent = NULL;
 179      pkg_t *latest_matching = NULL;
 180      pkg_t *priorized_matching = NULL;
 181      pkg_t *held_pkg = NULL;
 182      pkg_t *good_pkg_by_name = NULL;
 183
 184      if (err)
 185        *err = 0;
 186
 187      if (apkg == NULL || apkg->provided_by == NULL || (apkg->provided_by->len == 0))
 188           return NULL;
 189
 190      opkg_message(conf, OPKG_DEBUG, "best installation candidate for %s\n", apkg->name);
 191
 192      provided_apkg_vec = apkg->provided_by;
 193      nprovides = provided_apkg_vec->len;
 194      provided_apkgs = provided_apkg_vec->pkgs;
 195      if (nprovides > 1)
 196           opkg_message(conf, OPKG_DEBUG, " apkg=%s nprovides=%d\n", apkg->name, nprovides);
 197
 198      /* accumulate all the providers */
 199      for (i = 0; i < nprovides; i++) {
 200           abstract_pkg_t *provider_apkg = provided_apkgs[i];
 201           opkg_message(conf, OPKG_DEBUG, " adding %s to providers\n", provider_apkg->name);
 202           abstract_pkg_vec_insert(providers, provider_apkg);
 203      }
 204      nprovides = providers->len;
 205
 206      for (i = 0; i < nprovides; i++) {
 207           abstract_pkg_t *provider_apkg = abstract_pkg_vec_get(providers, i);
 208           abstract_pkg_t *replacement_apkg = NULL;
 209           pkg_vec_t *vec;
 210
 211           if (provider_apkg->replaced_by && provider_apkg->replaced_by->len) {
 212                replacement_apkg = provider_apkg->replaced_by->pkgs[0];
 213                if (provider_apkg->replaced_by->len > 1) {
 214                     opkg_message(conf, OPKG_NOTICE, "Multiple replacers for %s, using first one (%s)\n",
 215                                  provider_apkg->name, replacement_apkg->name);
 216                }
 217           }
 218
 219           if (replacement_apkg)
 220                opkg_message(conf, OPKG_DEBUG, "   replacement_apkg=%s for provider_apkg=%s\n",
 221                             replacement_apkg->name, provider_apkg->name);
 222
 223           if (replacement_apkg && (replacement_apkg != provider_apkg)) {
 224                if (abstract_pkg_vec_contains(providers, replacement_apkg))
 225                     continue;
 226                else
 227                     provider_apkg = replacement_apkg;
 228           }
 229
 230           if (!(vec = provider_apkg->pkgs)) {
 231                opkg_message(conf, OPKG_DEBUG, "   no pkgs for provider_apkg %s\n", provider_apkg->name);
 232                continue;
 233           }
 234
 235
 236           /* now check for supported architecture */
 237           {
 238                int max_count = 0;
 239                int i;
 240
 241                /* count packages matching max arch priority and keep track of last one */
 242                for (i = 0; i < vec->len; i++) {
 243                     pkg_t *maybe = vec->pkgs[i];
 244                     opkg_message(conf, OPKG_DEBUG, "  %s arch=%s arch_priority=%d version=%s  \n",
 245                                  maybe->name, maybe->architecture, maybe->arch_priority, maybe->version);
 246                     /* We make sure not to add the same package twice. Need to search for the reason why
 247                        they show up twice sometimes. */
 248                     if ((maybe->arch_priority > 0) && (! pkg_vec_contains(matching_pkgs, maybe))) {
 249                          max_count++;
 250                          abstract_pkg_vec_insert(matching_apkgs, maybe->parent);
 251                          pkg_vec_insert(matching_pkgs, maybe);
 252                     }
 253                }
 254
 255                 if (vec->len > 0 && matching_pkgs->len < 1)
 256                 {
 257                   opkg_message (conf, OPKG_ERROR, "Packages were found, but none compatible with the architectures configured\n");
 258                   if (err)
 259                     *err = OPKG_PKG_HAS_NO_AVAILABLE_ARCH;
 260                 }
 261           }
 262      }
 263
 264      if (matching_pkgs->len > 1)
 265           pkg_vec_sort(matching_pkgs, pkg_name_version_and_architecture_compare);
 266      if (matching_apkgs->len > 1)
 267           abstract_pkg_vec_sort(matching_pkgs, abstract_pkg_name_compare);
 268
 269 /* Here it is usefull, if ( matching_apkgs->len > 1 ), to test if one of this matching packages has the same name of the
 270    needed package. In this case, I would return it for install, otherwise I will continue with the procedure */
 271 /* The problem is what to do when there are more than a mathing package, with the same name and several version ?
 272    Until now I always got the latest, but that breaks the downgrade option.
 273    If I stop at the first one, I would probably miss the new ones
 274    Maybe the way is to have some kind of flag somewhere, to see if the package been asked to install is from a file,
 275    or from a Packages feed.
 276    It it is from a file it always need to be checked whatever version I have in feeds or everywhere, according to force-down or whatever options*/
 277 /*Pigi*/
 278
 279      for (i = 0; i < matching_pkgs->len; i++) {
 280           pkg_t *matching = matching_pkgs->pkgs[i];
 281           if (constraint_fcn(matching, cdata)) {  /* We found it */
 282              opkg_message(conf, OPKG_DEBUG, " Found a valid candidate for the install: %s %s  \n", matching->name, matching->version) ;
 283              good_pkg_by_name = matching;
 284              if ( matching->provided_by_hand == 1 )    /* It has been provided by hand, so it is what user want */
 285                 break;
 286           }
 287      }
 288
 289
 290      for (i = 0; i < matching_pkgs->len; i++) {
 291           pkg_t *matching = matching_pkgs->pkgs[i];
 292           latest_matching = matching;
 293           if (matching->parent->state_status == SS_INSTALLED || matching->parent->state_status == SS_UNPACKED)
 294                latest_installed_parent = matching;
 295           if (matching->state_flag & (SF_HOLD|SF_PREFER)) {
 296                if (held_pkg)
 297                     opkg_message(conf, OPKG_NOTICE, "Multiple packages (%s and %s) providing same name marked HOLD or PREFER.  Using latest.\n",
 298                                  held_pkg->name, matching->name);
 299                held_pkg = matching;
 300           }
 301      }
 302
 303      if (!good_pkg_by_name && !held_pkg && !latest_installed_parent && matching_apkgs->len > 1 && !quiet) {
 304           int prio = 0;
 305           for (i = 0; i < matching_pkgs->len; i++) {
 306               pkg_t *matching = matching_pkgs->pkgs[i];
 307                   if (matching->arch_priority > prio) {
 308                       priorized_matching = matching;
 309                       prio = matching->arch_priority;
 310                       opkg_message(conf, OPKG_DEBUG, "Match with priority %i    %s\n", prio, matching->name);
 311                   }
 312               }
 313
 314           }
 315
 316      if (matching_apkgs->len > 1 && conf->verbosity > 1) {
 317           opkg_message(conf, OPKG_NOTICE, "%s: for apkg=%s, %d matching pkgs\n",
 318                        __FUNCTION__, apkg->name, matching_pkgs->len);
 319           for (i = 0; i < matching_pkgs->len; i++) {
 320                pkg_t *matching = matching_pkgs->pkgs[i];
 321                opkg_message(conf, OPKG_INFO, "    %s %s %s\n",
 322                             matching->name, matching->version, matching->architecture);
 323           }
 324      }
 325
 326      nmatching = matching_apkgs->len;
 327
 328      pkg_vec_free(matching_pkgs);
 329      abstract_pkg_vec_free(matching_apkgs);
 330      abstract_pkg_vec_free(providers);
 331
 332      if (good_pkg_by_name) {   /* We found a good candidate, we will install it */
 333           return good_pkg_by_name;
 334      }
 335      if (held_pkg) {
 336           opkg_message(conf, OPKG_INFO, "  using held package %s\n", held_pkg->name);
 337           return held_pkg;
 338      }
 339      if (latest_installed_parent) {
 340           opkg_message(conf, OPKG_INFO, "  using latest version of installed package %s\n", latest_installed_parent->name);
 341           return latest_installed_parent;
 342      }
 343      if (priorized_matching) {
 344           opkg_message(conf, OPKG_INFO, "  using priorized matching %s %s %s\n",
 345                        priorized_matching->name, priorized_matching->version, priorized_matching->architecture);
 346           return priorized_matching;
 347      }
 348      if (nmatching > 1) {
 349           opkg_message(conf, OPKG_INFO, "  no matching pkg out of matching_apkgs=%d\n", nmatching);
 350           return NULL;
 351      }
 352      if (latest_matching) {
 353           opkg_message(conf, OPKG_INFO, "  using latest matching %s %s %s\n",
 354                        latest_matching->name, latest_matching->version, latest_matching->architecture);
 355           return latest_matching;
 356      }
 357      return NULL;
 358 }
 359
 360 static int pkg_name_constraint_fcn(pkg_t *pkg, void *cdata)
 361 {
 362      const char *name = (const char *)cdata;
 363      if (strcmp(pkg->name, name) == 0)
 364           return 1;
 365      else
 366           return 0;
 367 }
 368
 369 pkg_t *pkg_hash_fetch_best_installation_candidate_by_name(opkg_conf_t *conf, const char *name, int *err)
 370 {
 371      hash_table_t *hash = &conf->pkg_hash;
 372      abstract_pkg_t *apkg = NULL;
 373      pkg_t *ret;
 374
 375      if (!(apkg = abstract_pkg_fetch_by_name(hash, name)))
 376           return NULL;
 377
 378      ret = pkg_hash_fetch_best_installation_candidate(conf, apkg, pkg_name_constraint_fcn, apkg->name, 0, err);
 379
 380      return ret;
 381 }
 382
 383
 384 pkg_t * pkg_hash_fetch_by_name_version(hash_table_t *hash,
 385                                        const char *pkg_name,
 386                                        const char * version)
 387 {
 388     pkg_vec_t * vec;
 389     int i;
 390     char *version_str = NULL;
 391
 392     if(!(vec = pkg_vec_fetch_by_name(hash, pkg_name)))
 393         return NULL;
 394
 395     for(i = 0; i < vec->len; i++) {
 396         version_str = pkg_version_str_alloc(vec->pkgs[i]);
 397         if(!strcmp(version_str, version)) {
 398             free(version_str);
 399             break;
 400         }
 401         free(version_str);
 402     }
 403
 404     if(i == vec->len)
 405         return NULL;
 406
 407     return vec->pkgs[i];
 408 }
 409
 410 pkg_t *pkg_hash_fetch_installed_by_name_dest(hash_table_t *hash,
 411                                              const char *pkg_name,
 412                                              pkg_dest_t *dest)
 413 {
 414     pkg_vec_t * vec;
 415     int i;
 416
 417     if(!(vec = pkg_vec_fetch_by_name(hash, pkg_name))) {
 418         return NULL;
 419     }
 420
 421     for(i = 0; i < vec->len; i++)
 422         if((vec->pkgs[i]->state_status == SS_INSTALLED || vec->pkgs[i]->state_status == SS_UNPACKED) && vec->pkgs[i]->dest == dest) {
 423             return vec->pkgs[i];
 424         }
 425     return NULL;
 426 }
 427
 428 pkg_t *pkg_hash_fetch_installed_by_name(hash_table_t *hash,
 429                                         const char *pkg_name)
 430 {
 431     pkg_vec_t * vec;
 432     int i;
 433
 434     if(!(vec = pkg_vec_fetch_by_name(hash, pkg_name))){
 435         return NULL;
 436     }
 437
 438     for(i = 0; i < vec->len; i++)
 439         if (vec->pkgs[i]->state_status == SS_INSTALLED || vec->pkgs[i]->state_status == SS_UNPACKED){
 440             return vec->pkgs[i];
 441         }
 442
 443     return NULL;
 444 }
 445
 446 pkg_vec_t *pkg_vec_fetch_by_name(hash_table_t *hash, const char *pkg_name)
 447 {
 448     abstract_pkg_t * ab_pkg;
 449
 450     if(!(ab_pkg = abstract_pkg_fetch_by_name(hash, pkg_name))){
 451        return NULL;
 452     }
 453
 454     if (ab_pkg->pkgs) {
 455       return ab_pkg->pkgs;
 456     } else if (ab_pkg->provided_by) {
 457       abstract_pkg_t *abpkg =  abstract_pkg_vec_get(ab_pkg->provided_by, 0);
 458       if (abpkg != NULL){
 459           return abpkg->pkgs;
 460       } else {
 461           return ab_pkg->pkgs;
 462       }
 463     } else {
 464       return NULL;
 465     }
 466 }
 467
 468
 469 static void pkg_hash_fetch_available_helper(const char *pkg_name, void *entry, void *data)
 470 {
 471   int j;
 472   abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
 473   pkg_vec_t *all = (pkg_vec_t *)data;
 474   pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 475   if (pkg_vec) {
 476     for (j = 0; j < pkg_vec->len; j++) {
 477       pkg_t *pkg = pkg_vec->pkgs[j];
 478       pkg_vec_insert(all, pkg);
 479     }
 480   }
 481 }
 482
 483 void pkg_hash_fetch_available(hash_table_t *hash, pkg_vec_t *all)
 484 {
 485     hash_table_foreach(hash, pkg_hash_fetch_available_helper, all);
 486 }
 487
 488 static void pkg_hash_fetch_all_installed_helper(const char *pkg_name, void *entry, void *data)
 489 {
 490   abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
 491   pkg_vec_t *all = (pkg_vec_t *)data;
 492   pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 493   int j;
 494   if (pkg_vec) {
 495     for (j = 0; j < pkg_vec->len; j++) {
 496       pkg_t *pkg = pkg_vec->pkgs[j];
 497       if (pkg->state_status == SS_INSTALLED || pkg->state_status == SS_UNPACKED) {
 498         pkg_vec_insert(all, pkg);
 499       }
 500     }
 501   }
 502 }
 503 void pkg_hash_fetch_all_installed(hash_table_t *hash, pkg_vec_t *all)
 504 {
 505     hash_table_foreach(hash, pkg_hash_fetch_all_installed_helper, all);
 506 }
 507
 508 static void pkg_hash_dump_helper(const char *pkg_name, void *entry, void *data)
 509 {
 510   int i;
 511   pkg_t *pkg;
 512   abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
 513   opkg_conf_t *conf = (opkg_conf_t *)data;
 514   abstract_pkg_t ** dependents = ab_pkg->depended_upon_by;
 515   fprintf(stdout, "%s\n", ab_pkg->name);
 516   i = 0;
 517   if (dependents != NULL)
 518     while (dependents [i] != NULL)
 519       printf ("\tdepended upon by - %s\n", dependents [i ++]->name);
 520   dependents = ab_pkg->provided_by->pkgs;
 521   i = 0;
 522   if (dependents != NULL)
 523     while (dependents [i] != NULL && i < ab_pkg->provided_by->len)
 524       printf ("\tprovided by - %s\n", dependents [i ++]->name);
 525   pkg = pkg_hash_fetch_best_installation_candidate_by_name (conf, ab_pkg->name, NULL);
 526   if (pkg) {
 527     i = 0;
 528     while (i < pkg->depends_count)
 529       printf ("\tdepends on - %s\n", pkg->depends_str [i ++]);
 530   }
 531 }
 532 void pkg_hash_dump(hash_table_t *hash, void *data)
 533 {
 534
 535   printf ("\n\n+=+%s+=+\n\n", __FUNCTION__);
 536   hash_table_foreach(hash, pkg_hash_dump_helper, data);
 537   printf ("\n+=+%s+=+\n\n", __FUNCTION__);
 538 }
 539
 540 abstract_pkg_t * ensure_abstract_pkg_by_name(hash_table_t * hash, const char * pkg_name)
 541 {
 542   abstract_pkg_t * ab_pkg;
 543
 544   if(!(ab_pkg = abstract_pkg_fetch_by_name(hash, pkg_name)))
 545     ab_pkg = add_new_abstract_pkg_by_name(hash, pkg_name);
 546
 547   return ab_pkg;
 548 }
 549
 550 pkg_t *hash_insert_pkg(hash_table_t *hash, pkg_t *pkg, int set_status,opkg_conf_t *conf)
 551 {
 552      abstract_pkg_t * ab_pkg;
 553      int arch_priority;
 554
 555      if(!pkg)
 556           return pkg;
 557
 558      arch_priority = pkg->arch_priority;
 559
 560      buildDepends(hash, pkg);
 561
 562      ab_pkg = ensure_abstract_pkg_by_name(hash, pkg->name);
 563
 564      if (set_status) {
 565           if (pkg->state_status == SS_INSTALLED) {
 566                ab_pkg->state_status = SS_INSTALLED;
 567           } else if (pkg->state_status == SS_UNPACKED) {
 568                ab_pkg->state_status = SS_UNPACKED;
 569           }
 570      }
 571
 572      if(!ab_pkg->pkgs)
 573           ab_pkg->pkgs = pkg_vec_alloc();
 574
 575      buildProvides(hash, ab_pkg, pkg);
 576
 577      /* need to build the conflicts graph before replaces for correct calculation of replaced_by relation */
 578      buildConflicts(hash, ab_pkg, pkg);
 579
 580      buildReplaces(hash, ab_pkg, pkg);
 581
 582      buildDependedUponBy(pkg, ab_pkg);
 583
 584      /* pkg_vec_insert_merge might munge package, but it returns an unmunged pkg */
 585      pkg = pkg_vec_insert_merge(ab_pkg->pkgs, pkg, set_status,conf );
 586      pkg->parent = ab_pkg;
 587
 588      return pkg;
 589 }
 590
 591 /*
 592  * this will assume that we've already determined that
 593  * the abstract pkg doesn't exist, 'cause we should know these things...
 594  */
 595 static abstract_pkg_t * add_new_abstract_pkg_by_name(hash_table_t * hash, const char * pkg_name)
 596 {
 597   abstract_pkg_t * ab_pkg;
 598
 599   ab_pkg = abstract_pkg_new();
 600   if (ab_pkg == NULL) { return NULL; }
 601
 602   ab_pkg->name = xstrdup(pkg_name);
 603   hash_table_insert(hash, pkg_name, ab_pkg);
 604
 605   return ab_pkg;
 606 }
 607
 608
 609 pkg_t *file_hash_get_file_owner(opkg_conf_t *conf, const char *file_name)
 610 {
 611      hash_table_t *file_hash = &conf->file_hash;
 612
 613      return hash_table_get(file_hash, file_name);
 614 }
 615
 616 int file_hash_set_file_owner(opkg_conf_t *conf, const char *file_name, pkg_t *owning_pkg)
 617 {
 618      hash_table_t *file_hash = &conf->file_hash;
 619      pkg_t *old_owning_pkg = hash_table_get(file_hash, file_name);
 620      int file_name_len = strlen(file_name);
 621
 622      if (file_name[file_name_len -1] == '/')
 623           return 0;
 624
 625      if (conf->offline_root) {
 626           int len = strlen(conf->offline_root);
 627           if (strncmp(file_name, conf->offline_root, len) == 0) {
 628                file_name += len;
 629           }
 630      }
 631
 632      // opkg_message(conf, OPKG_DEBUG2, "owning_pkg=%s filename=%s\n", owning_pkg->name, file_name);
 633      hash_table_insert(file_hash, file_name, owning_pkg);
 634      if (old_owning_pkg) {
 635           pkg_get_installed_files(old_owning_pkg);
 636           str_list_remove_elt(old_owning_pkg->installed_files, file_name);
 637           pkg_free_installed_files(old_owning_pkg);
 638           /* mark this package to have its filelist written */
 639           old_owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 640           owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 641
 642      }
 643      return 0;
 644 }
 645
 646