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           if (!pkg)
 128                return -ENOMEM;
 129
 130           if (pkg_parse_raw(pkg, &raw, src, dest) == 0) {
 131                if (!pkg->architecture) {
 132                     char *version_str = pkg_version_str_alloc(pkg);
 133                     pkg->architecture = pkg_get_default_arch(conf);
 134                     opkg_message(conf, OPKG_ERROR, "Package %s version %s has no architecture specified, defaulting to %s.\n",
 135                                  pkg->name, version_str, pkg->architecture);
 136                     free(version_str);
 137                }
 138                hash_insert_pkg(hash, pkg, is_status_file,conf);
 139           } else {
 140                pkg_deinit (pkg);
 141                free(pkg);
 142           }
 143      }
 144
 145      /* XXX: CLEANUP: I'd like a cleaner interface for cleaning up
 146         memory after read_raw_pkgs_from_file */
 147      raw = raw_start;
 148      while (*raw) {
 149           free(*raw++);
 150      }
 151      free(raw_start);
 152      return 0;
 153 }
 154
 155 abstract_pkg_t * abstract_pkg_fetch_by_name(hash_table_t * hash, const char * pkg_name)
 156 {
 157   return (abstract_pkg_t *)hash_table_get(hash, pkg_name);
 158 }
 159
 160 abstract_pkg_vec_t *pkg_hash_fetch_all_installation_candidates(hash_table_t *hash, const char *name)
 161 {
 162     abstract_pkg_t *apkg = abstract_pkg_fetch_by_name(hash, name);
 163     if (apkg)
 164        return NULL;
 165     return apkg->provided_by;
 166 }
 167
 168
 169 pkg_t *pkg_hash_fetch_best_installation_candidate(opkg_conf_t *conf, abstract_pkg_t *apkg,
 170                                                   int (*constraint_fcn)(pkg_t *pkg, void *cdata), void *cdata, int quiet, int *err)
 171 {
 172      int i;
 173      int nprovides = 0;
 174      int nmatching = 0;
 175      pkg_vec_t *matching_pkgs = pkg_vec_alloc();
 176      abstract_pkg_vec_t *matching_apkgs = abstract_pkg_vec_alloc();
 177      abstract_pkg_vec_t *provided_apkg_vec;
 178      abstract_pkg_t **provided_apkgs;
 179      abstract_pkg_vec_t *providers = abstract_pkg_vec_alloc();
 180      pkg_t *latest_installed_parent = NULL;
 181      pkg_t *latest_matching = NULL;
 182      pkg_t *priorized_matching = NULL;
 183      pkg_t *held_pkg = NULL;
 184      pkg_t *good_pkg_by_name = NULL;
 185
 186      if (err)
 187        *err = 0;
 188
 189      if (matching_apkgs == NULL || providers == NULL ||
 190          apkg == NULL || apkg->provided_by == NULL || (apkg->provided_by->len == 0))
 191           return NULL;
 192
 193      opkg_message(conf, OPKG_DEBUG, "best installation candidate for %s\n", apkg->name);
 194
 195      provided_apkg_vec = apkg->provided_by;
 196      nprovides = provided_apkg_vec->len;
 197      provided_apkgs = provided_apkg_vec->pkgs;
 198      if (nprovides > 1)
 199           opkg_message(conf, OPKG_DEBUG, " apkg=%s nprovides=%d\n", apkg->name, nprovides);
 200
 201      /* accumulate all the providers */
 202      for (i = 0; i < nprovides; i++) {
 203           abstract_pkg_t *provider_apkg = provided_apkgs[i];
 204           opkg_message(conf, OPKG_DEBUG, " adding %s to providers\n", provider_apkg->name);
 205           abstract_pkg_vec_insert(providers, provider_apkg);
 206      }
 207      nprovides = providers->len;
 208
 209      for (i = 0; i < nprovides; i++) {
 210           abstract_pkg_t *provider_apkg = abstract_pkg_vec_get(providers, i);
 211           abstract_pkg_t *replacement_apkg = NULL;
 212           pkg_vec_t *vec;
 213
 214           if (provider_apkg->replaced_by && provider_apkg->replaced_by->len) {
 215                replacement_apkg = provider_apkg->replaced_by->pkgs[0];
 216                if (provider_apkg->replaced_by->len > 1) {
 217                     opkg_message(conf, OPKG_NOTICE, "Multiple replacers for %s, using first one (%s)\n",
 218                                  provider_apkg->name, replacement_apkg->name);
 219                }
 220           }
 221
 222           if (replacement_apkg)
 223                opkg_message(conf, OPKG_DEBUG, "   replacement_apkg=%s for provider_apkg=%s\n",
 224                             replacement_apkg->name, provider_apkg->name);
 225
 226           if (replacement_apkg && (replacement_apkg != provider_apkg)) {
 227                if (abstract_pkg_vec_contains(providers, replacement_apkg))
 228                     continue;
 229                else
 230                     provider_apkg = replacement_apkg;
 231           }
 232
 233           if (!(vec = provider_apkg->pkgs)) {
 234                opkg_message(conf, OPKG_DEBUG, "   no pkgs for provider_apkg %s\n", provider_apkg->name);
 235                continue;
 236           }
 237
 238
 239           /* now check for supported architecture */
 240           {
 241                int max_count = 0;
 242                int i;
 243
 244                /* count packages matching max arch priority and keep track of last one */
 245                for (i = 0; i < vec->len; i++) {
 246                     pkg_t *maybe = vec->pkgs[i];
 247                     opkg_message(conf, OPKG_DEBUG, "  %s arch=%s arch_priority=%d version=%s  \n",
 248                                  maybe->name, maybe->architecture, maybe->arch_priority, maybe->version);
 249                     /* We make sure not to add the same package twice. Need to search for the reason why
 250                        they show up twice sometimes. */
 251                     if ((maybe->arch_priority > 0) && (! pkg_vec_contains(matching_pkgs, maybe))) {
 252                          max_count++;
 253                          abstract_pkg_vec_insert(matching_apkgs, maybe->parent);
 254                          pkg_vec_insert(matching_pkgs, maybe);
 255                     }
 256                }
 257
 258                 if (vec->len > 0 && matching_pkgs->len < 1)
 259                 {
 260                   opkg_message (conf, OPKG_ERROR, "Packages were found, but none compatible with the architectures configured\n");
 261                   if (err)
 262                     *err = OPKG_PKG_HAS_NO_AVAILABLE_ARCH;
 263                 }
 264           }
 265      }
 266
 267      if (matching_pkgs->len > 1)
 268           pkg_vec_sort(matching_pkgs, pkg_name_version_and_architecture_compare);
 269      if (matching_apkgs->len > 1)
 270           abstract_pkg_vec_sort(matching_pkgs, abstract_pkg_name_compare);
 271
 272 /* Here it is usefull, if ( matching_apkgs->len > 1 ), to test if one of this matching packages has the same name of the
 273    needed package. In this case, I would return it for install, otherwise I will continue with the procedure */
 274 /* The problem is what to do when there are more than a mathing package, with the same name and several version ?
 275    Until now I always got the latest, but that breaks the downgrade option.
 276    If I stop at the first one, I would probably miss the new ones
 277    Maybe the way is to have some kind of flag somewhere, to see if the package been asked to install is from a file,
 278    or from a Packages feed.
 279    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*/
 280 /*Pigi*/
 281
 282      for (i = 0; i < matching_pkgs->len; i++) {
 283           pkg_t *matching = matching_pkgs->pkgs[i];
 284           if (constraint_fcn(matching, cdata)) {  /* We found it */
 285              opkg_message(conf, OPKG_DEBUG, " Found a valid candidate for the install: %s %s  \n", matching->name, matching->version) ;
 286              good_pkg_by_name = matching;
 287              if ( matching->provided_by_hand == 1 )    /* It has been provided by hand, so it is what user want */
 288                 break;
 289           }
 290      }
 291
 292
 293      for (i = 0; i < matching_pkgs->len; i++) {
 294           pkg_t *matching = matching_pkgs->pkgs[i];
 295           latest_matching = matching;
 296           if (matching->parent->state_status == SS_INSTALLED || matching->parent->state_status == SS_UNPACKED)
 297                latest_installed_parent = matching;
 298           if (matching->state_flag & (SF_HOLD|SF_PREFER)) {
 299                if (held_pkg)
 300                     opkg_message(conf, OPKG_NOTICE, "Multiple packages (%s and %s) providing same name marked HOLD or PREFER.  Using latest.\n",
 301                                  held_pkg->name, matching->name);
 302                held_pkg = matching;
 303           }
 304      }
 305
 306      if (!good_pkg_by_name && !held_pkg && !latest_installed_parent && matching_apkgs->len > 1 && !quiet) {
 307           int prio = 0;
 308           for (i = 0; i < matching_pkgs->len; i++) {
 309               pkg_t *matching = matching_pkgs->pkgs[i];
 310                   if (matching->arch_priority > prio) {
 311                       priorized_matching = matching;
 312                       prio = matching->arch_priority;
 313                       opkg_message(conf, OPKG_DEBUG, "Match with priority %i    %s\n", prio, matching->name);
 314                   }
 315               }
 316
 317           }
 318
 319      if (matching_apkgs->len > 1 && conf->verbosity > 1) {
 320           opkg_message(conf, OPKG_NOTICE, "%s: for apkg=%s, %d matching pkgs\n",
 321                        __FUNCTION__, apkg->name, matching_pkgs->len);
 322           for (i = 0; i < matching_pkgs->len; i++) {
 323                pkg_t *matching = matching_pkgs->pkgs[i];
 324                opkg_message(conf, OPKG_INFO, "    %s %s %s\n",
 325                             matching->name, matching->version, matching->architecture);
 326           }
 327      }
 328
 329      nmatching = matching_apkgs->len;
 330
 331      pkg_vec_free(matching_pkgs);
 332      abstract_pkg_vec_free(matching_apkgs);
 333      abstract_pkg_vec_free(providers);
 334
 335      if (good_pkg_by_name) {   /* We found a good candidate, we will install it */
 336           return good_pkg_by_name;
 337      }
 338      if (held_pkg) {
 339           opkg_message(conf, OPKG_INFO, "  using held package %s\n", held_pkg->name);
 340           return held_pkg;
 341      }
 342      if (latest_installed_parent) {
 343           opkg_message(conf, OPKG_INFO, "  using latest version of installed package %s\n", latest_installed_parent->name);
 344           return latest_installed_parent;
 345      }
 346      if (priorized_matching) {
 347           opkg_message(conf, OPKG_INFO, "  using priorized matching %s %s %s\n",
 348                        priorized_matching->name, priorized_matching->version, priorized_matching->architecture);
 349           return priorized_matching;
 350      }
 351      if (nmatching > 1) {
 352           opkg_message(conf, OPKG_INFO, "  no matching pkg out of matching_apkgs=%d\n", nmatching);
 353           return NULL;
 354      }
 355      if (latest_matching) {
 356           opkg_message(conf, OPKG_INFO, "  using latest matching %s %s %s\n",
 357                        latest_matching->name, latest_matching->version, latest_matching->architecture);
 358           return latest_matching;
 359      }
 360      return NULL;
 361 }
 362
 363 static int pkg_name_constraint_fcn(pkg_t *pkg, void *cdata)
 364 {
 365      const char *name = (const char *)cdata;
 366      if (strcmp(pkg->name, name) == 0)
 367           return 1;
 368      else
 369           return 0;
 370 }
 371
 372 pkg_t *pkg_hash_fetch_best_installation_candidate_by_name(opkg_conf_t *conf, const char *name, int *err)
 373 {
 374      hash_table_t *hash = &conf->pkg_hash;
 375      abstract_pkg_t *apkg = NULL;
 376      pkg_t *ret;
 377
 378      if (!(apkg = abstract_pkg_fetch_by_name(hash, name)))
 379           return NULL;
 380
 381      ret = pkg_hash_fetch_best_installation_candidate(conf, apkg, pkg_name_constraint_fcn, apkg->name, 0, err);
 382
 383      return ret;
 384 }
 385
 386
 387 pkg_t * pkg_hash_fetch_by_name_version(hash_table_t *hash,
 388                                        const char *pkg_name,
 389                                        const char * version)
 390 {
 391     pkg_vec_t * vec;
 392     int i;
 393     char *version_str = NULL;
 394
 395     if(!(vec = pkg_vec_fetch_by_name(hash, pkg_name)))
 396         return NULL;
 397
 398     for(i = 0; i < vec->len; i++) {
 399         version_str = pkg_version_str_alloc(vec->pkgs[i]);
 400         if(!strcmp(version_str, version)) {
 401             free(version_str);
 402             break;
 403         }
 404         free(version_str);
 405     }
 406
 407     if(i == vec->len)
 408         return NULL;
 409
 410     return vec->pkgs[i];
 411 }
 412
 413 pkg_t *pkg_hash_fetch_installed_by_name_dest(hash_table_t *hash,
 414                                              const char *pkg_name,
 415                                              pkg_dest_t *dest)
 416 {
 417     pkg_vec_t * vec;
 418     int i;
 419
 420     if(!(vec = pkg_vec_fetch_by_name(hash, pkg_name))) {
 421         return NULL;
 422     }
 423
 424     for(i = 0; i < vec->len; i++)
 425         if((vec->pkgs[i]->state_status == SS_INSTALLED || vec->pkgs[i]->state_status == SS_UNPACKED) && vec->pkgs[i]->dest == dest) {
 426             return vec->pkgs[i];
 427         }
 428     return NULL;
 429 }
 430
 431 pkg_t *pkg_hash_fetch_installed_by_name(hash_table_t *hash,
 432                                         const char *pkg_name)
 433 {
 434     pkg_vec_t * vec;
 435     int i;
 436
 437     if(!(vec = pkg_vec_fetch_by_name(hash, pkg_name))){
 438         return NULL;
 439     }
 440
 441     for(i = 0; i < vec->len; i++)
 442         if (vec->pkgs[i]->state_status == SS_INSTALLED || vec->pkgs[i]->state_status == SS_UNPACKED){
 443             return vec->pkgs[i];
 444         }
 445
 446     return NULL;
 447 }
 448
 449 pkg_vec_t *pkg_vec_fetch_by_name(hash_table_t *hash, const char *pkg_name)
 450 {
 451     abstract_pkg_t * ab_pkg;
 452
 453     if(!(ab_pkg = abstract_pkg_fetch_by_name(hash, pkg_name))){
 454        return NULL;
 455     }
 456
 457     if (ab_pkg->pkgs) {
 458       return ab_pkg->pkgs;
 459     } else if (ab_pkg->provided_by) {
 460       abstract_pkg_t *abpkg =  abstract_pkg_vec_get(ab_pkg->provided_by, 0);
 461       if (abpkg != NULL){
 462           return abpkg->pkgs;
 463       } else {
 464           return ab_pkg->pkgs;
 465       }
 466     } else {
 467       return NULL;
 468     }
 469 }
 470
 471
 472 static void pkg_hash_fetch_available_helper(const char *pkg_name, void *entry, void *data)
 473 {
 474   int j;
 475   abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
 476   pkg_vec_t *all = (pkg_vec_t *)data;
 477   pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 478   if (pkg_vec) {
 479     for (j = 0; j < pkg_vec->len; j++) {
 480       pkg_t *pkg = pkg_vec->pkgs[j];
 481       pkg_vec_insert(all, pkg);
 482     }
 483   }
 484 }
 485
 486 void pkg_hash_fetch_available(hash_table_t *hash, pkg_vec_t *all)
 487 {
 488     hash_table_foreach(hash, pkg_hash_fetch_available_helper, all);
 489 }
 490
 491 static void pkg_hash_fetch_all_installed_helper(const char *pkg_name, void *entry, void *data)
 492 {
 493   abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
 494   pkg_vec_t *all = (pkg_vec_t *)data;
 495   pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 496   int j;
 497   if (pkg_vec) {
 498     for (j = 0; j < pkg_vec->len; j++) {
 499       pkg_t *pkg = pkg_vec->pkgs[j];
 500       if (pkg->state_status == SS_INSTALLED || pkg->state_status == SS_UNPACKED) {
 501         pkg_vec_insert(all, pkg);
 502       }
 503     }
 504   }
 505 }
 506 void pkg_hash_fetch_all_installed(hash_table_t *hash, pkg_vec_t *all)
 507 {
 508     hash_table_foreach(hash, pkg_hash_fetch_all_installed_helper, all);
 509 }
 510
 511 static void pkg_hash_dump_helper(const char *pkg_name, void *entry, void *data)
 512 {
 513   int i;
 514   pkg_t *pkg;
 515   abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
 516   opkg_conf_t *conf = (opkg_conf_t *)data;
 517   abstract_pkg_t ** dependents = ab_pkg->depended_upon_by;
 518   fprintf(stdout, "%s\n", ab_pkg->name);
 519   i = 0;
 520   if (dependents != NULL)
 521     while (dependents [i] != NULL)
 522       printf ("\tdepended upon by - %s\n", dependents [i ++]->name);
 523   dependents = ab_pkg->provided_by->pkgs;
 524   i = 0;
 525   if (dependents != NULL)
 526     while (dependents [i] != NULL && i < ab_pkg->provided_by->len)
 527       printf ("\tprovided by - %s\n", dependents [i ++]->name);
 528   pkg = pkg_hash_fetch_best_installation_candidate_by_name (conf, ab_pkg->name, NULL);
 529   if (pkg) {
 530     i = 0;
 531     while (i < pkg->depends_count)
 532       printf ("\tdepends on - %s\n", pkg->depends_str [i ++]);
 533   }
 534 }
 535 void pkg_hash_dump(hash_table_t *hash, void *data)
 536 {
 537
 538   printf ("\n\n+=+%s+=+\n\n", __FUNCTION__);
 539   hash_table_foreach(hash, pkg_hash_dump_helper, data);
 540   printf ("\n+=+%s+=+\n\n", __FUNCTION__);
 541 }
 542
 543 abstract_pkg_t * ensure_abstract_pkg_by_name(hash_table_t * hash, const char * pkg_name)
 544 {
 545   abstract_pkg_t * ab_pkg;
 546
 547   if(!(ab_pkg = abstract_pkg_fetch_by_name(hash, pkg_name)))
 548     ab_pkg = add_new_abstract_pkg_by_name(hash, pkg_name);
 549
 550   return ab_pkg;
 551 }
 552
 553 pkg_t *hash_insert_pkg(hash_table_t *hash, pkg_t *pkg, int set_status,opkg_conf_t *conf)
 554 {
 555      abstract_pkg_t * ab_pkg;
 556      int arch_priority;
 557
 558      if(!pkg)
 559           return pkg;
 560
 561      arch_priority = pkg->arch_priority;
 562
 563      if (buildDepends(hash, pkg)<0){
 564         fprintf(stderr, "%s : This should never happen. Report this Bug in bugzilla please \n ",__FUNCTION__);
 565         return NULL;
 566      }
 567      ab_pkg = ensure_abstract_pkg_by_name(hash, pkg->name);
 568
 569      if (set_status) {
 570           if (pkg->state_status == SS_INSTALLED) {
 571                ab_pkg->state_status = SS_INSTALLED;
 572           } else if (pkg->state_status == SS_UNPACKED) {
 573                ab_pkg->state_status = SS_UNPACKED;
 574           }
 575      }
 576
 577      if(!ab_pkg->pkgs)
 578           ab_pkg->pkgs = pkg_vec_alloc();
 579
 580      if (buildProvides(hash, ab_pkg, pkg)<0){
 581         fprintf(stderr, "%s : This should never happen. Report this Bug in bugzilla please \n ",__FUNCTION__);
 582         return NULL;
 583      }
 584      /* need to build the conflicts graph before replaces for correct calculation of replaced_by relation */
 585      if (buildConflicts(hash, ab_pkg, pkg)<0){
 586         fprintf(stderr, "%s : This should never happen. Report this Bug in bugzilla please \n ",__FUNCTION__);
 587         return NULL;
 588      }
 589      if (buildReplaces(hash, ab_pkg, pkg)<0) {
 590         fprintf(stderr, "%s : This should never happen. Report this Bug in bugzilla please \n ",__FUNCTION__);
 591         return NULL;
 592      }
 593
 594      buildDependedUponBy(pkg, ab_pkg);
 595
 596      /* pkg_vec_insert_merge might munge package, but it returns an unmunged pkg */
 597      pkg = pkg_vec_insert_merge(ab_pkg->pkgs, pkg, set_status,conf );
 598      pkg->parent = ab_pkg;
 599
 600      return pkg;
 601 }
 602
 603 /*
 604  * this will assume that we've already determined that
 605  * the abstract pkg doesn't exist, 'cause we should know these things...
 606  */
 607 static abstract_pkg_t * add_new_abstract_pkg_by_name(hash_table_t * hash, const char * pkg_name)
 608 {
 609   abstract_pkg_t * ab_pkg;
 610
 611   ab_pkg = abstract_pkg_new();
 612   if (ab_pkg == NULL) { return NULL; }
 613
 614   ab_pkg->name = xstrdup(pkg_name);
 615   hash_table_insert(hash, pkg_name, ab_pkg);
 616
 617   return ab_pkg;
 618 }
 619
 620
 621 pkg_t *file_hash_get_file_owner(opkg_conf_t *conf, const char *file_name)
 622 {
 623      hash_table_t *file_hash = &conf->file_hash;
 624
 625      return hash_table_get(file_hash, file_name);
 626 }
 627
 628 int file_hash_set_file_owner(opkg_conf_t *conf, const char *file_name, pkg_t *owning_pkg)
 629 {
 630      hash_table_t *file_hash = &conf->file_hash;
 631      pkg_t *old_owning_pkg = hash_table_get(file_hash, file_name);
 632      int file_name_len = strlen(file_name);
 633
 634      if (file_name[file_name_len -1] == '/')
 635           return 0;
 636
 637      if (conf->offline_root) {
 638           int len = strlen(conf->offline_root);
 639           if (strncmp(file_name, conf->offline_root, len) == 0) {
 640                file_name += len;
 641           }
 642      }
 643
 644      // opkg_message(conf, OPKG_DEBUG2, "owning_pkg=%s filename=%s\n", owning_pkg->name, file_name);
 645      hash_table_insert(file_hash, file_name, owning_pkg);
 646      if (old_owning_pkg) {
 647           pkg_get_installed_files(old_owning_pkg);
 648           str_list_remove_elt(old_owning_pkg->installed_files, file_name);
 649           pkg_free_installed_files(old_owning_pkg);
 650           /* mark this package to have its filelist written */
 651           old_owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 652           owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 653
 654      }
 655      return 0;
 656 }
 657
 658