libopkg/pkg.c

   1 /* pkg.c - the opkg 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 "includes.h"
  19 #include <ctype.h>
  20 #include <alloca.h>
  21 #include <string.h>
  22 #include <stdbool.h>
  23 #include <errno.h>
  24
  25 #include "pkg.h"
  26
  27 #include "pkg_parse.h"
  28 #include "pkg_extract.h"
  29 #include "opkg_message.h"
  30 #include "opkg_utils.h"
  31
  32 #include "libbb/libbb.h"
  33 #include "sprintf_alloc.h"
  34 #include "file_util.h"
  35 #include "xsystem.h"
  36 #include "opkg_conf.h"
  37
  38 typedef struct enum_map enum_map_t;
  39 struct enum_map
  40 {
  41      unsigned int value;
  42      const char *str;
  43 };
  44
  45 static const enum_map_t pkg_state_want_map[] = {
  46      { SW_UNKNOWN, "unknown"},
  47      { SW_INSTALL, "install"},
  48      { SW_DEINSTALL, "deinstall"},
  49      { SW_PURGE, "purge"}
  50 };
  51
  52 static const enum_map_t pkg_state_flag_map[] = {
  53      { SF_OK, "ok"},
  54      { SF_REINSTREQ, "reinstreq"},
  55      { SF_HOLD, "hold"},
  56      { SF_REPLACE, "replace"},
  57      { SF_NOPRUNE, "noprune"},
  58      { SF_PREFER, "prefer"},
  59      { SF_OBSOLETE, "obsolete"},
  60      { SF_USER, "user"},
  61 };
  62
  63 static const enum_map_t pkg_state_status_map[] = {
  64      { SS_NOT_INSTALLED, "not-installed" },
  65      { SS_UNPACKED, "unpacked" },
  66      { SS_HALF_CONFIGURED, "half-configured" },
  67      { SS_INSTALLED, "installed" },
  68      { SS_HALF_INSTALLED, "half-installed" },
  69      { SS_CONFIG_FILES, "config-files" },
  70      { SS_POST_INST_FAILED, "post-inst-failed" },
  71      { SS_REMOVAL_FAILED, "removal-failed" }
  72 };
  73
  74 static void
  75 pkg_init(pkg_t *pkg)
  76 {
  77      pkg->name = NULL;
  78      pkg->epoch = 0;
  79      pkg->version = NULL;
  80      pkg->revision = NULL;
  81      pkg->dest = NULL;
  82      pkg->src = NULL;
  83      pkg->architecture = NULL;
  84      pkg->maintainer = NULL;
  85      pkg->section = NULL;
  86      pkg->description = NULL;
  87      pkg->state_want = SW_UNKNOWN;
  88      pkg->state_flag = SF_OK;
  89      pkg->state_status = SS_NOT_INSTALLED;
  90      pkg->depends_str = NULL;
  91      pkg->provides_str = NULL;
  92      pkg->depends_count = 0;
  93      pkg->depends = NULL;
  94      pkg->suggests_str = NULL;
  95      pkg->recommends_str = NULL;
  96      pkg->suggests_count = 0;
  97      pkg->recommends_count = 0;
  98
  99      active_list_init(&pkg->list);
 100
 101      pkg->conflicts = NULL;
 102      pkg->conflicts_count = 0;
 103
 104      pkg->replaces = NULL;
 105      pkg->replaces_count = 0;
 106
 107      pkg->pre_depends_count = 0;
 108      pkg->pre_depends_str = NULL;
 109      pkg->provides_count = 0;
 110      pkg->provides = NULL;
 111      pkg->filename = NULL;
 112      pkg->local_filename = NULL;
 113      pkg->tmp_unpack_dir = NULL;
 114      pkg->md5sum = NULL;
 115 #if defined HAVE_SHA256
 116      pkg->sha256sum = NULL;
 117 #endif
 118      pkg->size = 0;
 119      pkg->installed_size = 0;
 120      pkg->priority = NULL;
 121      pkg->source = NULL;
 122      conffile_list_init(&pkg->conffiles);
 123      pkg->installed_files = NULL;
 124      pkg->installed_files_ref_cnt = 0;
 125      pkg->essential = 0;
 126      pkg->provided_by_hand = 0;
 127 }
 128
 129 pkg_t *
 130 pkg_new(void)
 131 {
 132      pkg_t *pkg;
 133
 134      pkg = xcalloc(1, sizeof(pkg_t));
 135      pkg_init(pkg);
 136
 137      return pkg;
 138 }
 139
 140 static void
 141 compound_depend_deinit(compound_depend_t *depends)
 142 {
 143     int i;
 144     for (i = 0; i < depends->possibility_count; i++)
 145     {
 146         depend_t *d;
 147         d = depends->possibilities[i];
 148         free (d->version);
 149         free (d);
 150     }
 151     free (depends->possibilities);
 152 }
 153
 154 void
 155 pkg_deinit(pkg_t *pkg)
 156 {
 157         int i;
 158
 159         if (pkg->name)
 160                 free(pkg->name);
 161         pkg->name = NULL;
 162
 163         pkg->epoch = 0;
 164
 165         if (pkg->version)
 166                 free(pkg->version);
 167         pkg->version = NULL;
 168         /* revision shares storage with version, so don't free */
 169         pkg->revision = NULL;
 170
 171         /* owned by opkg_conf_t */
 172         pkg->dest = NULL;
 173         /* owned by opkg_conf_t */
 174         pkg->src = NULL;
 175
 176         if (pkg->architecture)
 177                 free(pkg->architecture);
 178         pkg->architecture = NULL;
 179
 180         if (pkg->maintainer)
 181                 free(pkg->maintainer);
 182         pkg->maintainer = NULL;
 183
 184         if (pkg->section)
 185                 free(pkg->section);
 186         pkg->section = NULL;
 187
 188         if (pkg->description)
 189                 free(pkg->description);
 190         pkg->description = NULL;
 191
 192         pkg->state_want = SW_UNKNOWN;
 193         pkg->state_flag = SF_OK;
 194         pkg->state_status = SS_NOT_INSTALLED;
 195
 196         active_list_clear(&pkg->list);
 197
 198         if (pkg->replaces)
 199                 free (pkg->replaces);
 200         pkg->replaces = NULL;
 201
 202         if (pkg->depends) {
 203                 int count = pkg->pre_depends_count
 204                                 + pkg->depends_count
 205                                 + pkg->recommends_count
 206                                 + pkg->suggests_count;
 207
 208                 for (i=0; i<count; i++)
 209                         compound_depend_deinit (&pkg->depends[i]);
 210                 free (pkg->depends);
 211         }
 212
 213         if (pkg->conflicts) {
 214                 for (i=0; i<pkg->conflicts_count; i++)
 215                         compound_depend_deinit (&pkg->conflicts[i]);
 216                 free (pkg->conflicts);
 217         }
 218
 219         if (pkg->provides)
 220                 free (pkg->provides);
 221
 222         pkg->pre_depends_count = 0;
 223         pkg->provides_count = 0;
 224
 225         if (pkg->filename)
 226                 free(pkg->filename);
 227         pkg->filename = NULL;
 228
 229         if (pkg->local_filename)
 230                 free(pkg->local_filename);
 231         pkg->local_filename = NULL;
 232
 233      /* CLEANUP: It'd be nice to pullin the cleanup function from
 234         opkg_install.c here. See comment in
 235         opkg_install.c:cleanup_temporary_files */
 236         if (pkg->tmp_unpack_dir)
 237                 free(pkg->tmp_unpack_dir);
 238         pkg->tmp_unpack_dir = NULL;
 239
 240         if (pkg->md5sum)
 241                 free(pkg->md5sum);
 242         pkg->md5sum = NULL;
 243
 244 #if defined HAVE_SHA256
 245         if (pkg->sha256sum)
 246                 free(pkg->sha256sum);
 247         pkg->sha256sum = NULL;
 248 #endif
 249
 250         if (pkg->priority)
 251                 free(pkg->priority);
 252         pkg->priority = NULL;
 253
 254         if (pkg->source)
 255                 free(pkg->source);
 256         pkg->source = NULL;
 257
 258         conffile_list_deinit(&pkg->conffiles);
 259
 260         /* XXX: QUESTION: Is forcing this to 1 correct? I suppose so,
 261         since if they are calling deinit, they should know. Maybe do an
 262         assertion here instead? */
 263         pkg->installed_files_ref_cnt = 1;
 264         pkg_free_installed_files(pkg);
 265         pkg->essential = 0;
 266
 267         if (pkg->tags)
 268                 free (pkg->tags);
 269         pkg->tags = NULL;
 270 }
 271
 272 int
 273 pkg_init_from_file(pkg_t *pkg, const char *filename)
 274 {
 275         int fd, err = 0;
 276         FILE *control_file;
 277         char *control_path;
 278
 279         pkg_init(pkg);
 280
 281         pkg->local_filename = xstrdup(filename);
 282
 283         sprintf_alloc(&control_path, "%s/%s.control.XXXXXX",
 284                         conf->tmp_dir,
 285                         basename(filename));
 286         fd = mkstemp(control_path);
 287         if (fd == -1) {
 288                 opkg_perror(ERROR, "Failed to make temp file %s", control_path);
 289                 err = -1;
 290                 goto err0;
 291         }
 292
 293         control_file = fdopen(fd, "r+");
 294         if (control_file == NULL) {
 295                 opkg_perror(ERROR, "Failed to fdopen %s", control_path);
 296                 close(fd);
 297                 err = -1;
 298                 goto err1;
 299         }
 300
 301         err = pkg_extract_control_file_to_stream(pkg, control_file);
 302         if (err) {
 303                 opkg_msg(ERROR, "Failed to extract control file from %s.\n",
 304                                 filename);
 305                 goto err2;
 306         }
 307
 308         rewind(control_file);
 309
 310         if (pkg_parse_from_stream(pkg, control_file, 0))
 311                 err = -1;
 312
 313 err2:
 314         fclose(control_file);
 315 err1:
 316         unlink(control_path);
 317 err0:
 318         free(control_path);
 319
 320         return err;
 321 }
 322
 323 /* Merge any new information in newpkg into oldpkg */
 324 int
 325 pkg_merge(pkg_t *oldpkg, pkg_t *newpkg)
 326 {
 327      if (oldpkg == newpkg) {
 328           return 0;
 329      }
 330
 331      if (!oldpkg->auto_installed)
 332           oldpkg->auto_installed = newpkg->auto_installed;
 333
 334      if (!oldpkg->src)
 335           oldpkg->src = newpkg->src;
 336      if (!oldpkg->dest)
 337           oldpkg->dest = newpkg->dest;
 338      if (!oldpkg->architecture)
 339           oldpkg->architecture = xstrdup(newpkg->architecture);
 340      if (!oldpkg->arch_priority)
 341           oldpkg->arch_priority = newpkg->arch_priority;
 342      if (!oldpkg->section)
 343           oldpkg->section = xstrdup(newpkg->section);
 344      if(!oldpkg->maintainer)
 345           oldpkg->maintainer = xstrdup(newpkg->maintainer);
 346      if(!oldpkg->description)
 347           oldpkg->description = xstrdup(newpkg->description);
 348
 349      if (!oldpkg->depends_count && !oldpkg->pre_depends_count && !oldpkg->recommends_count && !oldpkg->suggests_count) {
 350           oldpkg->depends_count = newpkg->depends_count;
 351           newpkg->depends_count = 0;
 352
 353           oldpkg->depends = newpkg->depends;
 354           newpkg->depends = NULL;
 355
 356           oldpkg->pre_depends_count = newpkg->pre_depends_count;
 357           newpkg->pre_depends_count = 0;
 358
 359           oldpkg->recommends_count = newpkg->recommends_count;
 360           newpkg->recommends_count = 0;
 361
 362           oldpkg->suggests_count = newpkg->suggests_count;
 363           newpkg->suggests_count = 0;
 364      }
 365
 366      if (oldpkg->provides_count <= 1) {
 367           oldpkg->provides_count = newpkg->provides_count;
 368           newpkg->provides_count = 0;
 369
 370           if (!oldpkg->provides) {
 371                 oldpkg->provides = newpkg->provides;
 372                 newpkg->provides = NULL;
 373           }
 374      }
 375
 376      if (!oldpkg->conflicts_count) {
 377           oldpkg->conflicts_count = newpkg->conflicts_count;
 378           newpkg->conflicts_count = 0;
 379
 380           oldpkg->conflicts = newpkg->conflicts;
 381           newpkg->conflicts = NULL;
 382      }
 383
 384      if (!oldpkg->replaces_count) {
 385           oldpkg->replaces_count = newpkg->replaces_count;
 386           newpkg->replaces_count = 0;
 387
 388           oldpkg->replaces = newpkg->replaces;
 389           newpkg->replaces = NULL;
 390      }
 391
 392      if (!oldpkg->filename)
 393           oldpkg->filename = xstrdup(newpkg->filename);
 394      if (!oldpkg->local_filename)
 395           oldpkg->local_filename = xstrdup(newpkg->local_filename);
 396      if (!oldpkg->tmp_unpack_dir)
 397           oldpkg->tmp_unpack_dir = xstrdup(newpkg->tmp_unpack_dir);
 398      if (!oldpkg->md5sum)
 399           oldpkg->md5sum = xstrdup(newpkg->md5sum);
 400 #if defined HAVE_SHA256
 401      if (!oldpkg->sha256sum)
 402           oldpkg->sha256sum = xstrdup(newpkg->sha256sum);
 403 #endif
 404      if (!oldpkg->size)
 405           oldpkg->size = newpkg->size;
 406      if (!oldpkg->installed_size)
 407           oldpkg->installed_size = newpkg->installed_size;
 408      if (!oldpkg->priority)
 409           oldpkg->priority = xstrdup(newpkg->priority);
 410      if (!oldpkg->source)
 411           oldpkg->source = xstrdup(newpkg->source);
 412
 413      if (nv_pair_list_empty(&oldpkg->conffiles)){
 414           list_splice_init(&newpkg->conffiles.head, &oldpkg->conffiles.head);
 415      }
 416
 417      if (!oldpkg->installed_files){
 418           oldpkg->installed_files = newpkg->installed_files;
 419           oldpkg->installed_files_ref_cnt = newpkg->installed_files_ref_cnt;
 420           newpkg->installed_files = NULL;
 421      }
 422
 423      if (!oldpkg->essential)
 424           oldpkg->essential = newpkg->essential;
 425
 426      return 0;
 427 }
 428
 429 static void
 430 abstract_pkg_init(abstract_pkg_t *ab_pkg)
 431 {
 432      ab_pkg->provided_by = abstract_pkg_vec_alloc();
 433      ab_pkg->dependencies_checked = 0;
 434      ab_pkg->state_status = SS_NOT_INSTALLED;
 435 }
 436
 437 abstract_pkg_t *
 438 abstract_pkg_new(void)
 439 {
 440      abstract_pkg_t * ab_pkg;
 441
 442      ab_pkg = xcalloc(1, sizeof(abstract_pkg_t));
 443      abstract_pkg_init(ab_pkg);
 444
 445      return ab_pkg;
 446 }
 447
 448 void
 449 set_flags_from_control(pkg_t *pkg){
 450      char *file_name;
 451      FILE *fp;
 452
 453      sprintf_alloc(&file_name,"%s/%s.control", pkg->dest->info_dir, pkg->name);
 454
 455      fp = fopen(file_name, "r");
 456      if (fp == NULL) {
 457              opkg_perror(ERROR, "Failed to open %s");
 458              free(file_name);
 459              return;
 460      }
 461
 462      free(file_name);
 463
 464      if (pkg_parse_from_stream(pkg, fp, PFM_ALL ^ PFM_ESSENTIAL)) {
 465         opkg_msg(DEBUG, "Unable to read control file for %s. May be empty.\n",
 466                         pkg->name);
 467      }
 468
 469      fclose(fp);
 470
 471      return;
 472 }
 473
 474 static const char *
 475 pkg_state_want_to_str(pkg_state_want_t sw)
 476 {
 477      int i;
 478
 479      for (i=0; i < ARRAY_SIZE(pkg_state_want_map); i++) {
 480           if (pkg_state_want_map[i].value == sw) {
 481                return pkg_state_want_map[i].str;
 482           }
 483      }
 484
 485      opkg_msg(ERROR, "Internal error: state_want=%d\n", sw);
 486      return "<STATE_WANT_UNKNOWN>";
 487 }
 488
 489 pkg_state_want_t
 490 pkg_state_want_from_str(char *str)
 491 {
 492      int i;
 493
 494      for (i=0; i < ARRAY_SIZE(pkg_state_want_map); i++) {
 495           if (strcmp(str, pkg_state_want_map[i].str) == 0) {
 496                return pkg_state_want_map[i].value;
 497           }
 498      }
 499
 500      opkg_msg(ERROR, "Internal error: state_want=%s\n", str);
 501      return SW_UNKNOWN;
 502 }
 503
 504 static char *
 505 pkg_state_flag_to_str(pkg_state_flag_t sf)
 506 {
 507         int i;
 508         unsigned int len;
 509         char *str;
 510
 511         /* clear the temporary flags before converting to string */
 512         sf &= SF_NONVOLATILE_FLAGS;
 513
 514         if (sf == 0)
 515                 return xstrdup("ok");
 516
 517         len = 0;
 518         for (i=0; i < ARRAY_SIZE(pkg_state_flag_map); i++) {
 519                 if (sf & pkg_state_flag_map[i].value)
 520                         len += strlen(pkg_state_flag_map[i].str) + 1;
 521         }
 522
 523         str = xmalloc(len+1);
 524         str[0] = '\0';
 525
 526         for (i=0; i < ARRAY_SIZE(pkg_state_flag_map); i++) {
 527                 if (sf & pkg_state_flag_map[i].value) {
 528                         strncat(str, pkg_state_flag_map[i].str, len);
 529                         strncat(str, ",", len);
 530                 }
 531         }
 532
 533         len = strlen(str);
 534         str[len-1] = '\0'; /* squash last comma */
 535
 536         return str;
 537 }
 538
 539 pkg_state_flag_t
 540 pkg_state_flag_from_str(const char *str)
 541 {
 542      int i;
 543      int sf = SF_OK;
 544      const char *sfname;
 545      unsigned int sfname_len;
 546
 547      if (strcmp(str, "ok") == 0) {
 548           return SF_OK;
 549      }
 550      for (i=0; i < ARRAY_SIZE(pkg_state_flag_map); i++) {
 551           sfname = pkg_state_flag_map[i].str;
 552           sfname_len = strlen(sfname);
 553           if (strncmp(str, sfname, sfname_len) == 0) {
 554                sf |= pkg_state_flag_map[i].value;
 555                str += sfname_len;
 556                if (str[0] == ',') {
 557                     str++;
 558                } else {
 559                     break;
 560                }
 561           }
 562      }
 563
 564      return sf;
 565 }
 566
 567 static const char *
 568 pkg_state_status_to_str(pkg_state_status_t ss)
 569 {
 570      int i;
 571
 572      for (i=0; i < ARRAY_SIZE(pkg_state_status_map); i++) {
 573           if (pkg_state_status_map[i].value == ss) {
 574                return pkg_state_status_map[i].str;
 575           }
 576      }
 577
 578      opkg_msg(ERROR, "Internal error: state_status=%d\n", ss);
 579      return "<STATE_STATUS_UNKNOWN>";
 580 }
 581
 582 pkg_state_status_t
 583 pkg_state_status_from_str(const char *str)
 584 {
 585      int i;
 586
 587      for (i=0; i < ARRAY_SIZE(pkg_state_status_map); i++) {
 588           if (strcmp(str, pkg_state_status_map[i].str) == 0) {
 589                return pkg_state_status_map[i].value;
 590           }
 591      }
 592
 593      opkg_msg(ERROR, "Internal error: state_status=%s\n", str);
 594      return SS_NOT_INSTALLED;
 595 }
 596
 597 void
 598 pkg_formatted_field(FILE *fp, pkg_t *pkg, const char *field)
 599 {
 600      int i, j;
 601      char *str;
 602      int depends_count = pkg->pre_depends_count +
 603                          pkg->depends_count +
 604                          pkg->recommends_count +
 605                          pkg->suggests_count;
 606
 607      if (strlen(field) < PKG_MINIMUM_FIELD_NAME_LEN) {
 608           goto UNKNOWN_FMT_FIELD;
 609      }
 610
 611      switch (field[0])
 612      {
 613      case 'a':
 614      case 'A':
 615           if (strcasecmp(field, "Architecture") == 0) {
 616                if (pkg->architecture) {
 617                    fprintf(fp, "Architecture: %s\n", pkg->architecture);
 618                }
 619           } else if (strcasecmp(field, "Auto-Installed") == 0) {
 620                 if (pkg->auto_installed)
 621                     fprintf(fp, "Auto-Installed: yes\n");
 622           } else {
 623                goto UNKNOWN_FMT_FIELD;
 624           }
 625           break;
 626      case 'c':
 627      case 'C':
 628           if (strcasecmp(field, "Conffiles") == 0) {
 629                conffile_list_elt_t *iter;
 630
 631                if (nv_pair_list_empty(&pkg->conffiles))
 632                     return;
 633
 634                fprintf(fp, "Conffiles:\n");
 635                for (iter = nv_pair_list_first(&pkg->conffiles); iter; iter = nv_pair_list_next(&pkg->conffiles, iter)) {
 636                     if (((conffile_t *)iter->data)->name && ((conffile_t *)iter->data)->value) {
 637                          fprintf(fp, " %s %s\n",
 638                                  ((conffile_t *)iter->data)->name,
 639                                  ((conffile_t *)iter->data)->value);
 640                     }
 641                }
 642           } else if (strcasecmp(field, "Conflicts") == 0) {
 643                struct depend *cdep;
 644                if (pkg->conflicts_count) {
 645                     fprintf(fp, "Conflicts:");
 646                     for(i = 0; i < pkg->conflicts_count; i++) {
 647                         cdep = pkg->conflicts[i].possibilities[0];
 648                         fprintf(fp, "%s %s", i == 0 ? "" : ",",
 649                                 cdep->pkg->name);
 650                         if (cdep->version) {
 651                                 fprintf(fp, " (%s%s)",
 652                                         constraint_to_str(cdep->constraint),
 653                                         cdep->version);
 654                         }
 655                     }
 656                     fprintf(fp, "\n");
 657                }
 658           } else {
 659                goto UNKNOWN_FMT_FIELD;
 660           }
 661           break;
 662      case 'd':
 663      case 'D':
 664           if (strcasecmp(field, "Depends") == 0) {
 665                if (pkg->depends_count) {
 666                     fprintf(fp, "Depends:");
 667                     for (j=0, i=0; i<depends_count; i++) {
 668                         if (pkg->depends[i].type != DEPEND)
 669                                 continue;
 670                         str = pkg_depend_str(pkg, i);
 671                         fprintf(fp, "%s %s", j == 0 ? "" : ",", str);
 672                         free(str);
 673                         j++;
 674                     }
 675                     fprintf(fp, "\n");
 676                }
 677           } else if (strcasecmp(field, "Description") == 0) {
 678                if (pkg->description) {
 679                    fprintf(fp, "Description: %s\n", pkg->description);
 680                }
 681           } else {
 682                goto UNKNOWN_FMT_FIELD;
 683           }
 684           break;
 685      case 'e':
 686      case 'E':
 687           if (pkg->essential) {
 688               fprintf(fp, "Essential: yes\n");
 689           }
 690           break;
 691      case 'f':
 692      case 'F':
 693           if (pkg->filename) {
 694               fprintf(fp, "Filename: %s\n", pkg->filename);
 695           }
 696           break;
 697      case 'i':
 698      case 'I':
 699           if (strcasecmp(field, "Installed-Size") == 0) {
 700                fprintf(fp, "Installed-Size: %ld\n", pkg->installed_size);
 701           } else if (strcasecmp(field, "Installed-Time") == 0 && pkg->installed_time) {
 702                fprintf(fp, "Installed-Time: %lu\n", pkg->installed_time);
 703           }
 704           break;
 705      case 'm':
 706      case 'M':
 707           if (strcasecmp(field, "Maintainer") == 0) {
 708                if (pkg->maintainer) {
 709                    fprintf(fp, "maintainer: %s\n", pkg->maintainer);
 710                }
 711           } else if (strcasecmp(field, "MD5sum") == 0) {
 712                if (pkg->md5sum) {
 713                    fprintf(fp, "MD5Sum: %s\n", pkg->md5sum);
 714                }
 715           } else {
 716                goto UNKNOWN_FMT_FIELD;
 717           }
 718           break;
 719      case 'p':
 720      case 'P':
 721           if (strcasecmp(field, "Package") == 0) {
 722                fprintf(fp, "Package: %s\n", pkg->name);
 723           } else if (strcasecmp(field, "Priority") == 0) {
 724                fprintf(fp, "Priority: %s\n", pkg->priority);
 725           } else if (strcasecmp(field, "Provides") == 0) {
 726                if (pkg->provides_count) {
 727                   fprintf(fp, "Provides:");
 728                   for(i = 1; i < pkg->provides_count; i++) {
 729                       fprintf(fp, "%s %s", i == 1 ? "" : ",",
 730                                       pkg->provides[i]->name);
 731                   }
 732                   fprintf(fp, "\n");
 733                }
 734           } else {
 735                goto UNKNOWN_FMT_FIELD;
 736           }
 737           break;
 738      case 'r':
 739      case 'R':
 740           if (strcasecmp (field, "Replaces") == 0) {
 741                if (pkg->replaces_count) {
 742                     fprintf(fp, "Replaces:");
 743                     for (i = 0; i < pkg->replaces_count; i++) {
 744                         fprintf(fp, "%s %s", i == 0 ? "" : ",",
 745                                         pkg->replaces[i]->name);
 746                     }
 747                     fprintf(fp, "\n");
 748                }
 749           } else if (strcasecmp (field, "Recommends") == 0) {
 750                if (pkg->recommends_count) {
 751                     fprintf(fp, "Recommends:");
 752                     for (j=0, i=0; i<depends_count; i++) {
 753                         if (pkg->depends[i].type != RECOMMEND)
 754                                 continue;
 755                         str = pkg_depend_str(pkg, i);
 756                         fprintf(fp, "%s %s", j == 0 ? "" : ",", str);
 757                         free(str);
 758                         j++;
 759                     }
 760                     fprintf(fp, "\n");
 761                }
 762           } else {
 763                goto UNKNOWN_FMT_FIELD;
 764           }
 765           break;
 766      case 's':
 767      case 'S':
 768           if (strcasecmp(field, "Section") == 0) {
 769                if (pkg->section) {
 770                    fprintf(fp, "Section: %s\n", pkg->section);
 771                }
 772 #if defined HAVE_SHA256
 773           } else if (strcasecmp(field, "SHA256sum") == 0) {
 774                if (pkg->sha256sum) {
 775                    fprintf(fp, "SHA256sum: %s\n", pkg->sha256sum);
 776                }
 777 #endif
 778           } else if (strcasecmp(field, "Size") == 0) {
 779                if (pkg->size) {
 780                    fprintf(fp, "Size: %ld\n", pkg->size);
 781                }
 782           } else if (strcasecmp(field, "Source") == 0) {
 783                if (pkg->source) {
 784                    fprintf(fp, "Source: %s\n", pkg->source);
 785                }
 786           } else if (strcasecmp(field, "Status") == 0) {
 787                char *pflag = pkg_state_flag_to_str(pkg->state_flag);
 788                fprintf(fp, "Status: %s %s %s\n",
 789                                pkg_state_want_to_str(pkg->state_want),
 790                                pflag,
 791                                pkg_state_status_to_str(pkg->state_status));
 792                free(pflag);
 793           } else if (strcasecmp(field, "Suggests") == 0) {
 794                if (pkg->suggests_count) {
 795                     fprintf(fp, "Suggests:");
 796                     for (j=0, i=0; i<depends_count; i++) {
 797                         if (pkg->depends[i].type != SUGGEST)
 798                                 continue;
 799                         str = pkg_depend_str(pkg, i);
 800                         fprintf(fp, "%s %s", j == 0 ? "" : ",", str);
 801                         free(str);
 802                         j++;
 803                     }
 804                     fprintf(fp, "\n");
 805                }
 806           } else {
 807                goto UNKNOWN_FMT_FIELD;
 808           }
 809           break;
 810      case 't':
 811      case 'T':
 812           if (strcasecmp(field, "Tags") == 0) {
 813                if (pkg->tags) {
 814                    fprintf(fp, "Tags: %s\n", pkg->tags);
 815                }
 816           }
 817           break;
 818      case 'v':
 819      case 'V':
 820           {
 821                char *version = pkg_version_str_alloc(pkg);
 822                if (version == NULL)
 823                     return;
 824                fprintf(fp, "Version: %s\n", version);
 825                free(version);
 826           }
 827           break;
 828      default:
 829           goto UNKNOWN_FMT_FIELD;
 830      }
 831
 832      return;
 833
 834 UNKNOWN_FMT_FIELD:
 835      opkg_msg(ERROR, "Internal error: field=%s\n", field);
 836 }
 837
 838 void
 839 pkg_formatted_info(FILE *fp, pkg_t *pkg)
 840 {
 841         pkg_formatted_field(fp, pkg, "Package");
 842         pkg_formatted_field(fp, pkg, "Version");
 843         pkg_formatted_field(fp, pkg, "Depends");
 844         pkg_formatted_field(fp, pkg, "Recommends");
 845         pkg_formatted_field(fp, pkg, "Suggests");
 846         pkg_formatted_field(fp, pkg, "Provides");
 847         pkg_formatted_field(fp, pkg, "Replaces");
 848         pkg_formatted_field(fp, pkg, "Conflicts");
 849         pkg_formatted_field(fp, pkg, "Status");
 850         pkg_formatted_field(fp, pkg, "Section");
 851         pkg_formatted_field(fp, pkg, "Essential");
 852         pkg_formatted_field(fp, pkg, "Architecture");
 853         pkg_formatted_field(fp, pkg, "Maintainer");
 854         pkg_formatted_field(fp, pkg, "MD5sum");
 855         pkg_formatted_field(fp, pkg, "Size");
 856         pkg_formatted_field(fp, pkg, "Filename");
 857         pkg_formatted_field(fp, pkg, "Conffiles");
 858         pkg_formatted_field(fp, pkg, "Source");
 859         pkg_formatted_field(fp, pkg, "Description");
 860         pkg_formatted_field(fp, pkg, "Installed-Time");
 861         pkg_formatted_field(fp, pkg, "Tags");
 862         fputs("\n", fp);
 863 }
 864
 865 void
 866 pkg_print_status(pkg_t * pkg, FILE * file)
 867 {
 868      if (pkg == NULL) {
 869           return;
 870      }
 871
 872      pkg_formatted_field(file, pkg, "Package");
 873      pkg_formatted_field(file, pkg, "Version");
 874      pkg_formatted_field(file, pkg, "Depends");
 875      pkg_formatted_field(file, pkg, "Recommends");
 876      pkg_formatted_field(file, pkg, "Suggests");
 877      pkg_formatted_field(file, pkg, "Provides");
 878      pkg_formatted_field(file, pkg, "Replaces");
 879      pkg_formatted_field(file, pkg, "Conflicts");
 880      pkg_formatted_field(file, pkg, "Status");
 881      pkg_formatted_field(file, pkg, "Essential");
 882      pkg_formatted_field(file, pkg, "Architecture");
 883      pkg_formatted_field(file, pkg, "Conffiles");
 884      pkg_formatted_field(file, pkg, "Installed-Time");
 885      pkg_formatted_field(file, pkg, "Auto-Installed");
 886      fputs("\n", file);
 887 }
 888
 889 /*
 890  * libdpkg - Debian packaging suite library routines
 891  * vercmp.c - comparison of version numbers
 892  *
 893  * Copyright (C) 1995 Ian Jackson <iwj10@cus.cam.ac.uk>
 894  */
 895
 896 /* assume ascii; warning: evaluates x multiple times! */
 897 #define order(x) ((x) == '~' ? -1 \
 898                 : isdigit((x)) ? 0 \
 899                 : !(x) ? 0 \
 900                 : isalpha((x)) ? (x) \
 901                 : (x) + 256)
 902
 903 static int
 904 verrevcmp(const char *val, const char *ref) {
 905   if (!val) val= "";
 906   if (!ref) ref= "";
 907
 908   while (*val || *ref) {
 909     int first_diff= 0;
 910
 911     while ( (*val && !isdigit(*val)) || (*ref && !isdigit(*ref)) ) {
 912       int vc= order(*val), rc= order(*ref);
 913       if (vc != rc) return vc - rc;
 914       val++; ref++;
 915     }
 916
 917     while ( *val == '0' ) val++;
 918     while ( *ref == '0' ) ref++;
 919     while (isdigit(*val) && isdigit(*ref)) {
 920       if (!first_diff) first_diff= *val - *ref;
 921       val++; ref++;
 922     }
 923     if (isdigit(*val)) return 1;
 924     if (isdigit(*ref)) return -1;
 925     if (first_diff) return first_diff;
 926   }
 927   return 0;
 928 }
 929
 930 int
 931 pkg_compare_versions(const pkg_t *pkg, const pkg_t *ref_pkg)
 932 {
 933      int r;
 934
 935      if (pkg->epoch > ref_pkg->epoch) {
 936           return 1;
 937      }
 938
 939      if (pkg->epoch < ref_pkg->epoch) {
 940           return -1;
 941      }
 942
 943      r = verrevcmp(pkg->version, ref_pkg->version);
 944      if (r) {
 945           return r;
 946      }
 947
 948      r = verrevcmp(pkg->revision, ref_pkg->revision);
 949      if (r) {
 950           return r;
 951      }
 952
 953      return r;
 954 }
 955
 956
 957 int
 958 pkg_version_satisfied(pkg_t *it, pkg_t *ref, const char *op)
 959 {
 960      int r;
 961
 962      r = pkg_compare_versions(it, ref);
 963
 964      if (strcmp(op, "<=") == 0 || strcmp(op, "<") == 0) {
 965           return r <= 0;
 966      }
 967
 968      if (strcmp(op, ">=") == 0 || strcmp(op, ">") == 0) {
 969           return r >= 0;
 970      }
 971
 972      if (strcmp(op, "<<") == 0) {
 973           return r < 0;
 974      }
 975
 976      if (strcmp(op, ">>") == 0) {
 977           return r > 0;
 978      }
 979
 980      if (strcmp(op, "=") == 0) {
 981           return r == 0;
 982      }
 983
 984      opkg_msg(ERROR, "Unknown operator: %s.\n", op);
 985      return 0;
 986 }
 987
 988 int
 989 pkg_name_version_and_architecture_compare(const void *p1, const void *p2)
 990 {
 991      const pkg_t *a = *(const pkg_t**) p1;
 992      const pkg_t *b = *(const pkg_t**) p2;
 993      int namecmp;
 994      int vercmp;
 995      if (!a->name || !b->name) {
 996        opkg_msg(ERROR, "Internal error: a->name=%p, b->name=%p.\n",
 997                a->name, b->name);
 998        return 0;
 999      }
1000
1001      namecmp = strcmp(a->name, b->name);
1002      if (namecmp)
1003           return namecmp;
1004      vercmp = pkg_compare_versions(a, b);
1005      if (vercmp)
1006           return vercmp;
1007      if (!a->arch_priority || !b->arch_priority) {
1008        opkg_msg(ERROR, "Internal error: a->arch_priority=%i b->arch_priority=%i.\n",
1009                a->arch_priority, b->arch_priority);
1010        return 0;
1011      }
1012      if (a->arch_priority > b->arch_priority)
1013           return 1;
1014      if (a->arch_priority < b->arch_priority)
1015           return -1;
1016      return 0;
1017 }
1018
1019 int
1020 abstract_pkg_name_compare(const void *p1, const void *p2)
1021 {
1022      const abstract_pkg_t *a = *(const abstract_pkg_t **)p1;
1023      const abstract_pkg_t *b = *(const abstract_pkg_t **)p2;
1024      if (!a->name || !b->name) {
1025        opkg_msg(ERROR, "Internal error: a->name=%p b->name=%p.\n",
1026                a->name, b->name);
1027        return 0;
1028      }
1029      return strcmp(a->name, b->name);
1030 }
1031
1032
1033 char *
1034 pkg_version_str_alloc(pkg_t *pkg)
1035 {
1036         char *version;
1037
1038         if (pkg->epoch) {
1039                 if (pkg->revision)
1040                         sprintf_alloc(&version, "%d:%s-%s",
1041                                 pkg->epoch, pkg->version, pkg->revision);
1042                 else
1043                         sprintf_alloc(&version, "%d:%s",
1044                                 pkg->epoch, pkg->version);
1045         } else {
1046                 if (pkg->revision)
1047                         sprintf_alloc(&version, "%s-%s",
1048                                 pkg->version, pkg->revision);
1049                 else
1050                         version = xstrdup(pkg->version);
1051         }
1052
1053         return version;
1054 }
1055
1056 /*
1057  * XXX: this should be broken into two functions
1058  */
1059 str_list_t *
1060 pkg_get_installed_files(pkg_t *pkg)
1061 {
1062      int err, fd;
1063      char *list_file_name = NULL;
1064      FILE *list_file = NULL;
1065      char *line;
1066      char *installed_file_name;
1067      unsigned int rootdirlen = 0;
1068
1069      pkg->installed_files_ref_cnt++;
1070
1071      if (pkg->installed_files) {
1072           return pkg->installed_files;
1073      }
1074
1075      pkg->installed_files = str_list_alloc();
1076
1077      /* For uninstalled packages, get the file list directly from the package.
1078         For installed packages, look at the package.list file in the database.
1079      */
1080      if (pkg->state_status == SS_NOT_INSTALLED || pkg->dest == NULL) {
1081           if (pkg->local_filename == NULL) {
1082                return pkg->installed_files;
1083           }
1084           /* XXX: CLEANUP: Maybe rewrite this to avoid using a temporary
1085              file. In other words, change deb_extract so that it can
1086              simply return the file list as a char *[] rather than
1087              insisting on writing in to a FILE * as it does now. */
1088           sprintf_alloc(&list_file_name, "%s/%s.list.XXXXXX",
1089                                           conf->tmp_dir, pkg->name);
1090           fd = mkstemp(list_file_name);
1091           if (fd == -1) {
1092                opkg_perror(ERROR, "Failed to make temp file %s.",
1093                                list_file_name);
1094                free(list_file_name);
1095                return pkg->installed_files;
1096           }
1097           list_file = fdopen(fd, "r+");
1098           if (list_file == NULL) {
1099                opkg_perror(ERROR, "Failed to fdopen temp file %s.",
1100                                list_file_name);
1101                close(fd);
1102                unlink(list_file_name);
1103                free(list_file_name);
1104                return pkg->installed_files;
1105           }
1106           err = pkg_extract_data_file_names_to_stream(pkg, list_file);
1107           if (err) {
1108                opkg_msg(ERROR, "Error extracting file list from %s.\n",
1109                                pkg->local_filename);
1110                fclose(list_file);
1111                unlink(list_file_name);
1112                free(list_file_name);
1113                str_list_deinit(pkg->installed_files);
1114                pkg->installed_files = NULL;
1115                return NULL;
1116           }
1117           rewind(list_file);
1118      } else {
1119           sprintf_alloc(&list_file_name, "%s/%s.list",
1120                         pkg->dest->info_dir, pkg->name);
1121           list_file = fopen(list_file_name, "r");
1122           if (list_file == NULL) {
1123                opkg_perror(ERROR, "Failed to open %s",
1124                        list_file_name);
1125                free(list_file_name);
1126                return pkg->installed_files;
1127           }
1128           free(list_file_name);
1129      }
1130
1131      if (conf->offline_root)
1132           rootdirlen = strlen(conf->offline_root);
1133
1134      while (1) {
1135           char *file_name;
1136
1137           line = file_read_line_alloc(list_file);
1138           if (line == NULL) {
1139                break;
1140           }
1141           file_name = line;
1142
1143           if (pkg->state_status == SS_NOT_INSTALLED || pkg->dest == NULL) {
1144                if (*file_name == '.') {
1145                     file_name++;
1146                }
1147                if (*file_name == '/') {
1148                     file_name++;
1149                }
1150                sprintf_alloc(&installed_file_name, "%s%s",
1151                                pkg->dest->root_dir, file_name);
1152           } else {
1153                if (conf->offline_root &&
1154                        strncmp(conf->offline_root, file_name, rootdirlen)) {
1155                     sprintf_alloc(&installed_file_name, "%s%s",
1156                                     conf->offline_root, file_name);
1157                } else {
1158                     // already contains root_dir as header -> ABSOLUTE
1159                     sprintf_alloc(&installed_file_name, "%s", file_name);
1160                }
1161           }
1162           str_list_append(pkg->installed_files, installed_file_name);
1163           free(installed_file_name);
1164           free(line);
1165      }
1166
1167      fclose(list_file);
1168
1169      if (pkg->state_status == SS_NOT_INSTALLED || pkg->dest == NULL) {
1170           unlink(list_file_name);
1171           free(list_file_name);
1172      }
1173
1174      return pkg->installed_files;
1175 }
1176
1177 /* XXX: CLEANUP: This function and it's counterpart,
1178    (pkg_get_installed_files), do not match our init/deinit naming
1179    convention. Nor the alloc/free convention. But, then again, neither
1180    of these conventions currrently fit the way these two functions
1181    work. */
1182 void
1183 pkg_free_installed_files(pkg_t *pkg)
1184 {
1185      pkg->installed_files_ref_cnt--;
1186
1187      if (pkg->installed_files_ref_cnt > 0)
1188           return;
1189
1190      if (pkg->installed_files) {
1191          str_list_purge(pkg->installed_files);
1192      }
1193
1194      pkg->installed_files = NULL;
1195 }
1196
1197 void
1198 pkg_remove_installed_files_list(pkg_t *pkg)
1199 {
1200         char *list_file_name;
1201
1202         sprintf_alloc(&list_file_name, "%s/%s.list",
1203                 pkg->dest->info_dir, pkg->name);
1204
1205         if (!conf->noaction)
1206                 (void)unlink(list_file_name);
1207
1208         free(list_file_name);
1209 }
1210
1211 conffile_t *
1212 pkg_get_conffile(pkg_t *pkg, const char *file_name)
1213 {
1214      conffile_list_elt_t *iter;
1215      conffile_t *conffile;
1216
1217      if (pkg == NULL) {
1218           return NULL;
1219      }
1220
1221      for (iter = nv_pair_list_first(&pkg->conffiles); iter; iter = nv_pair_list_next(&pkg->conffiles, iter)) {
1222           conffile = (conffile_t *)iter->data;
1223
1224           if (strcmp(conffile->name, file_name) == 0) {
1225                return conffile;
1226           }
1227      }
1228
1229      return NULL;
1230 }
1231
1232 int
1233 pkg_run_script(pkg_t *pkg, const char *script, const char *args)
1234 {
1235      int err;
1236      char *path;
1237      char *cmd;
1238
1239      if (conf->noaction)
1240              return 0;
1241
1242      /* XXX: FEATURE: When conf->offline_root is set, we should run the
1243         maintainer script within a chroot environment. */
1244      if (conf->offline_root) {
1245           opkg_msg(INFO, "Offline root mode: not running %s.%s.\n",
1246                           pkg->name, script);
1247           return 0;
1248      }
1249
1250      /* Installed packages have scripts in pkg->dest->info_dir, uninstalled packages
1251         have scripts in pkg->tmp_unpack_dir. */
1252      if (pkg->state_status == SS_INSTALLED || pkg->state_status == SS_UNPACKED) {
1253           if (pkg->dest == NULL) {
1254                opkg_msg(ERROR, "Internal error: %s has a NULL dest.\n",
1255                        pkg->name);
1256                return -1;
1257           }
1258           sprintf_alloc(&path, "%s/%s.%s", pkg->dest->info_dir, pkg->name, script);
1259      } else {
1260           if (pkg->tmp_unpack_dir == NULL) {
1261                opkg_msg(ERROR, "Internal error: %s has a NULL tmp_unpack_dir.\n",
1262                        pkg->name);
1263                return -1;
1264           }
1265           sprintf_alloc(&path, "%s/%s", pkg->tmp_unpack_dir, script);
1266      }
1267
1268      opkg_msg(INFO, "Running script %s.\n", path);
1269
1270      setenv("PKG_ROOT",
1271             pkg->dest ? pkg->dest->root_dir : conf->default_dest->root_dir, 1);
1272
1273      if (! file_exists(path)) {
1274           free(path);
1275           return 0;
1276      }
1277
1278      sprintf_alloc(&cmd, "%s %s", path, args);
1279      free(path);
1280      {
1281           const char *argv[] = {"sh", "-c", cmd, NULL};
1282           err = xsystem(argv);
1283      }
1284      free(cmd);
1285
1286      if (err) {
1287           opkg_msg(ERROR, "%s script returned status %d.\n", script, err);
1288           return err;
1289      }
1290
1291      return 0;
1292 }
1293
1294 int
1295 pkg_arch_supported(pkg_t *pkg)
1296 {
1297      nv_pair_list_elt_t *l;
1298
1299      if (!pkg->architecture)
1300           return 1;
1301
1302      list_for_each_entry(l , &conf->arch_list.head, node) {
1303           nv_pair_t *nv = (nv_pair_t *)l->data;
1304           if (strcmp(nv->name, pkg->architecture) == 0) {
1305                opkg_msg(DEBUG, "Arch %s (priority %s) supported for pkg %s.\n",
1306                                nv->name, nv->value, pkg->name);
1307                return 1;
1308           }
1309      }
1310
1311      opkg_msg(DEBUG, "Arch %s unsupported for pkg %s.\n",
1312                      pkg->architecture, pkg->name);
1313      return 0;
1314 }
1315
1316 static int
1317 pkg_get_arch_priority(const char *archname)
1318 {
1319      nv_pair_list_elt_t *l;
1320
1321      list_for_each_entry(l , &conf->arch_list.head, node) {
1322           nv_pair_t *nv = (nv_pair_t *)l->data;
1323           if (strcmp(nv->name, archname) == 0) {
1324                int priority = strtol(nv->value, NULL, 0);
1325                return priority;
1326           }
1327      }
1328      return 0;
1329 }
1330
1331 void
1332 pkg_info_preinstall_check(void)
1333 {
1334      int i;
1335      pkg_vec_t *available_pkgs = pkg_vec_alloc();
1336      pkg_vec_t *installed_pkgs = pkg_vec_alloc();
1337
1338      opkg_msg(INFO, "Updating arch priority for each package.\n");
1339      pkg_hash_fetch_available(available_pkgs);
1340      /* update arch_priority for each package */
1341      for (i = 0; i < available_pkgs->len; i++) {
1342           pkg_t *pkg = available_pkgs->pkgs[i];
1343           int arch_priority = 1;
1344           if (!pkg)
1345                continue;
1346           arch_priority = pkg_get_arch_priority(pkg->architecture);
1347           pkg->arch_priority = arch_priority;
1348      }
1349
1350      for (i = 0; i < available_pkgs->len; i++) {
1351           pkg_t *pkg = available_pkgs->pkgs[i];
1352           if (!pkg->arch_priority && (pkg->state_flag || (pkg->state_want != SW_UNKNOWN))) {
1353                /* clear flags and want for any uninstallable package */
1354                opkg_msg(DEBUG, "Clearing state_want and state_flag for pkg=%s "
1355                                "(arch_priority=%d flag=%d want=%d)\n",
1356                                pkg->name, pkg->arch_priority,
1357                                pkg->state_flag, pkg->state_want);
1358                pkg->state_want = SW_UNKNOWN;
1359                pkg->state_flag = 0;
1360           }
1361      }
1362      pkg_vec_free(available_pkgs);
1363
1364      /* update the file owner data structure */
1365      opkg_msg(INFO, "Updating file owner list.\n");
1366      pkg_hash_fetch_all_installed(installed_pkgs);
1367      for (i = 0; i < installed_pkgs->len; i++) {
1368           pkg_t *pkg = installed_pkgs->pkgs[i];
1369           str_list_t *installed_files = pkg_get_installed_files(pkg); /* this causes installed_files to be cached */
1370           str_list_elt_t *iter, *niter;
1371           if (installed_files == NULL) {
1372                opkg_msg(ERROR, "Failed to determine installed "
1373                                "files for pkg %s.\n", pkg->name);
1374                break;
1375           }
1376           for (iter = str_list_first(installed_files), niter = str_list_next(installed_files, iter);
1377                   iter;
1378                   iter = niter, niter = str_list_next(installed_files, iter)) {
1379                char *installed_file = (char *) iter->data;
1380                file_hash_set_file_owner(installed_file, pkg);
1381           }
1382           pkg_free_installed_files(pkg);
1383      }
1384      pkg_vec_free(installed_pkgs);
1385 }
1386
1387 struct pkg_write_filelist_data {
1388      pkg_t *pkg;
1389      FILE *stream;
1390 };
1391
1392 static void
1393 pkg_write_filelist_helper(const char *key, void *entry_, void *data_)
1394 {
1395      struct pkg_write_filelist_data *data = data_;
1396      pkg_t *entry = entry_;
1397      if (entry == data->pkg) {
1398           fprintf(data->stream, "%s\n", key);
1399      }
1400 }
1401
1402 int
1403 pkg_write_filelist(pkg_t *pkg)
1404 {
1405         struct pkg_write_filelist_data data;
1406         char *list_file_name;
1407
1408         sprintf_alloc(&list_file_name, "%s/%s.list",
1409                         pkg->dest->info_dir, pkg->name);
1410
1411         opkg_msg(INFO, "Creating %s file for pkg %s.\n",
1412                         list_file_name, pkg->name);
1413
1414         data.stream = fopen(list_file_name, "w");
1415         if (!data.stream) {
1416                 opkg_perror(ERROR, "Failed to open %s",
1417                         list_file_name);
1418                 free(list_file_name);
1419                 return -1;
1420         }
1421
1422         data.pkg = pkg;
1423         hash_table_foreach(&conf->file_hash, pkg_write_filelist_helper, &data);
1424         fclose(data.stream);
1425         free(list_file_name);
1426
1427         pkg->state_flag &= ~SF_FILELIST_CHANGED;
1428
1429         return 0;
1430 }
1431
1432 int
1433 pkg_write_changed_filelists(void)
1434 {
1435         pkg_vec_t *installed_pkgs = pkg_vec_alloc();
1436         int i, err, ret = 0;
1437
1438         if (conf->noaction)
1439                 return 0;
1440
1441         opkg_msg(INFO, "Saving changed filelists.\n");
1442
1443         pkg_hash_fetch_all_installed(installed_pkgs);
1444         for (i = 0; i < installed_pkgs->len; i++) {
1445                 pkg_t *pkg = installed_pkgs->pkgs[i];
1446                 if (pkg->state_flag & SF_FILELIST_CHANGED) {
1447                         err = pkg_write_filelist(pkg);
1448                         if (err)
1449                                 ret = -1;
1450                 }
1451         }
1452
1453         pkg_vec_free (installed_pkgs);
1454
1455         return ret;
1456 }