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 "config.h"
  19
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <ctype.h>
  23 #include <unistd.h>
  24 #include <libgen.h>
  25
  26 #include "pkg.h"
  27
  28 #include "pkg_parse.h"
  29 #include "pkg_extract.h"
  30 #include "opkg_message.h"
  31 #include "opkg_utils.h"
  32
  33 #include "libbb/libbb.h"
  34 #include "sprintf_alloc.h"
  35 #include "file_util.h"
  36 #include "xsystem.h"
  37 #include "opkg_conf.h"
  38
  39 typedef struct enum_map enum_map_t;
  40 struct enum_map {
  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 pkg_init(pkg_t * pkg)
  75 {
  76         pkg->name = NULL;
  77         pkg->dest = NULL;
  78         pkg->src = NULL;
  79         pkg->state_want = SW_UNKNOWN;
  80         pkg->state_flag = SF_OK;
  81         pkg->state_status = SS_NOT_INSTALLED;
  82         pkg->depends_str = NULL;
  83         pkg->provides_str = NULL;
  84         pkg->depends_count = 0;
  85         pkg->depends = NULL;
  86         pkg->suggests_str = NULL;
  87         pkg->recommends_str = NULL;
  88         pkg->suggests_count = 0;
  89         pkg->recommends_count = 0;
  90
  91         active_list_init(&pkg->list);
  92
  93         pkg->conflicts = NULL;
  94         pkg->conflicts_count = 0;
  95
  96         pkg->replaces = NULL;
  97         pkg->replaces_count = 0;
  98
  99         pkg->pre_depends_count = 0;
 100         pkg->pre_depends_str = NULL;
 101         pkg->provides_count = 0;
 102         pkg->provides = NULL;
 103         pkg->tmp_unpack_dir = NULL;
 104         pkg->size = 0;
 105         pkg->installed_size = 0;
 106         conffile_list_init(&pkg->conffiles);
 107         pkg->installed_files = NULL;
 108         pkg->installed_files_ref_cnt = 0;
 109         pkg->essential = 0;
 110         pkg->provided_by_hand = 0;
 111
 112         blob_buf_init(&pkg->blob, 0);
 113 }
 114
 115 pkg_t *pkg_new(void)
 116 {
 117         pkg_t *pkg;
 118
 119         pkg = xcalloc(1, sizeof(pkg_t));
 120         pkg_init(pkg);
 121
 122         return pkg;
 123 }
 124
 125 void *pkg_set_raw(pkg_t *pkg, int id, const void *val, size_t len)
 126 {
 127         int rem;
 128         struct blob_attr *cur;
 129
 130         blob_for_each_attr(cur, pkg->blob.head, rem) {
 131                 if (blob_id(cur) == id) {
 132                         if (blob_len(cur) < len) {
 133                                 fprintf(stderr, "ERROR: truncating field %d <%p> to %d byte",
 134                                         id, val, blob_len(cur));
 135                         }
 136                         memcpy(blob_data(cur), val, blob_len(cur));
 137                         return blob_data(cur);
 138                 }
 139         }
 140
 141         cur = blob_put(&pkg->blob, id, val, len);
 142         return cur ? blob_data(cur) : NULL;
 143 }
 144
 145 void *pkg_get_raw(const pkg_t * pkg, int id)
 146 {
 147         int rem;
 148         struct blob_attr *cur;
 149
 150         blob_for_each_attr(cur, pkg->blob.head, rem)
 151                 if (blob_id(cur) == id)
 152                         return blob_data(cur);
 153
 154         return NULL;
 155 }
 156
 157 char *pkg_set_string(pkg_t *pkg, int id, const char *s)
 158 {
 159         size_t len;
 160         char *p;
 161
 162         if (!s)
 163                 return NULL;
 164
 165         len = strlen(s);
 166
 167         while (isspace(*s)) {
 168                 s++;
 169                 len--;
 170         }
 171
 172         while (len > 0 && isspace(s[len - 1]))
 173                 len--;
 174
 175         if (!len)
 176                 return NULL;
 177
 178         p = pkg_set_raw(pkg, id, s, len + 1);
 179         p[len] = 0;
 180
 181         return p;
 182 }
 183
 184
 185 static void compound_depend_deinit(compound_depend_t * depends)
 186 {
 187         int i;
 188         for (i = 0; i < depends->possibility_count; i++) {
 189                 depend_t *d;
 190                 d = depends->possibilities[i];
 191                 free(d->version);
 192                 free(d);
 193         }
 194         free(depends->possibilities);
 195 }
 196
 197 void pkg_deinit(pkg_t * pkg)
 198 {
 199         int i;
 200
 201         if (pkg->name)
 202                 free(pkg->name);
 203         pkg->name = NULL;
 204
 205         /* owned by opkg_conf_t */
 206         pkg->dest = NULL;
 207         /* owned by opkg_conf_t */
 208         pkg->src = NULL;
 209
 210         pkg->state_want = SW_UNKNOWN;
 211         pkg->state_flag = SF_OK;
 212         pkg->state_status = SS_NOT_INSTALLED;
 213
 214         active_list_clear(&pkg->list);
 215
 216         if (pkg->replaces)
 217                 free(pkg->replaces);
 218         pkg->replaces = NULL;
 219
 220         if (pkg->depends) {
 221                 int count = pkg->pre_depends_count
 222                     + pkg->depends_count
 223                     + pkg->recommends_count + pkg->suggests_count;
 224
 225                 for (i = 0; i < count; i++)
 226                         compound_depend_deinit(&pkg->depends[i]);
 227                 free(pkg->depends);
 228         }
 229
 230         if (pkg->conflicts) {
 231                 for (i = 0; i < pkg->conflicts_count; i++)
 232                         compound_depend_deinit(&pkg->conflicts[i]);
 233                 free(pkg->conflicts);
 234         }
 235
 236         if (pkg->provides)
 237                 free(pkg->provides);
 238
 239         pkg->pre_depends_count = 0;
 240         pkg->provides_count = 0;
 241
 242         /* CLEANUP: It'd be nice to pullin the cleanup function from
 243            opkg_install.c here. See comment in
 244            opkg_install.c:cleanup_temporary_files */
 245         if (pkg->tmp_unpack_dir)
 246                 free(pkg->tmp_unpack_dir);
 247         pkg->tmp_unpack_dir = NULL;
 248
 249         conffile_list_deinit(&pkg->conffiles);
 250
 251         /* XXX: QUESTION: Is forcing this to 1 correct? I suppose so,
 252            since if they are calling deinit, they should know. Maybe do an
 253            assertion here instead? */
 254         pkg->installed_files_ref_cnt = 1;
 255         pkg_free_installed_files(pkg);
 256         pkg->essential = 0;
 257
 258         blob_buf_free(&pkg->blob);
 259 }
 260
 261 int pkg_init_from_file(pkg_t * pkg, const char *filename)
 262 {
 263         int fd, err = 0;
 264         FILE *control_file;
 265         char *control_path, *tmp;
 266
 267         pkg_init(pkg);
 268
 269         pkg_set_string(pkg, PKG_LOCAL_FILENAME, filename);
 270
 271         tmp = xstrdup(filename);
 272         sprintf_alloc(&control_path, "%s/%s.control.XXXXXX",
 273                       conf->tmp_dir, basename(tmp));
 274         free(tmp);
 275         fd = mkstemp(control_path);
 276         if (fd == -1) {
 277                 opkg_perror(ERROR, "Failed to make temp file %s", control_path);
 278                 err = -1;
 279                 goto err0;
 280         }
 281
 282         control_file = fdopen(fd, "r+");
 283         if (control_file == NULL) {
 284                 opkg_perror(ERROR, "Failed to fdopen %s", control_path);
 285                 close(fd);
 286                 err = -1;
 287                 goto err1;
 288         }
 289
 290         err = pkg_extract_control_file_to_stream(pkg, control_file);
 291         if (err) {
 292                 opkg_msg(ERROR, "Failed to extract control file from %s.\n",
 293                          filename);
 294                 goto err2;
 295         }
 296
 297         rewind(control_file);
 298
 299         if ((err = pkg_parse_from_stream(pkg, control_file, 0))) {
 300                 if (err == 1) {
 301                         opkg_msg(ERROR, "Malformed package file %s.\n",
 302                                  filename);
 303                 }
 304                 err = -1;
 305         }
 306
 307 err2:
 308         fclose(control_file);
 309 err1:
 310         unlink(control_path);
 311 err0:
 312         free(control_path);
 313
 314         return err;
 315 }
 316
 317 /* Merge any new information in newpkg into oldpkg */
 318 int pkg_merge(pkg_t * oldpkg, pkg_t * newpkg)
 319 {
 320         if (oldpkg == newpkg) {
 321                 return 0;
 322         }
 323
 324         if (!oldpkg->auto_installed)
 325                 oldpkg->auto_installed = newpkg->auto_installed;
 326
 327         if (!oldpkg->src)
 328                 oldpkg->src = newpkg->src;
 329         if (!oldpkg->dest)
 330                 oldpkg->dest = newpkg->dest;
 331         if (!pkg_get_string(oldpkg, PKG_ARCHITECTURE))
 332                 pkg_set_string(oldpkg, PKG_ARCHITECTURE, pkg_get_string(newpkg, PKG_ARCHITECTURE));
 333         if (!oldpkg->arch_priority)
 334                 oldpkg->arch_priority = newpkg->arch_priority;
 335         if (!pkg_get_string(oldpkg, PKG_SECTION))
 336                 pkg_set_string(oldpkg, PKG_SECTION, pkg_get_string(newpkg, PKG_SECTION));
 337         if (!pkg_get_string(oldpkg, PKG_MAINTAINER))
 338                 pkg_set_string(oldpkg, PKG_MAINTAINER, pkg_get_string(newpkg, PKG_MAINTAINER));
 339         if (!pkg_get_string(oldpkg, PKG_DESCRIPTION))
 340                 pkg_set_string(oldpkg, PKG_DESCRIPTION, pkg_get_string(newpkg, PKG_DESCRIPTION));
 341
 342         if (!oldpkg->depends_count && !oldpkg->pre_depends_count
 343             && !oldpkg->recommends_count && !oldpkg->suggests_count) {
 344                 oldpkg->depends_count = newpkg->depends_count;
 345                 newpkg->depends_count = 0;
 346
 347                 oldpkg->depends = newpkg->depends;
 348                 newpkg->depends = NULL;
 349
 350                 oldpkg->pre_depends_count = newpkg->pre_depends_count;
 351                 newpkg->pre_depends_count = 0;
 352
 353                 oldpkg->recommends_count = newpkg->recommends_count;
 354                 newpkg->recommends_count = 0;
 355
 356                 oldpkg->suggests_count = newpkg->suggests_count;
 357                 newpkg->suggests_count = 0;
 358         }
 359
 360         if (oldpkg->provides_count <= 1) {
 361                 oldpkg->provides_count = newpkg->provides_count;
 362                 newpkg->provides_count = 0;
 363
 364                 if (!oldpkg->provides) {
 365                         oldpkg->provides = newpkg->provides;
 366                         newpkg->provides = NULL;
 367                 }
 368         }
 369
 370         if (!oldpkg->conflicts_count) {
 371                 oldpkg->conflicts_count = newpkg->conflicts_count;
 372                 newpkg->conflicts_count = 0;
 373
 374                 oldpkg->conflicts = newpkg->conflicts;
 375                 newpkg->conflicts = NULL;
 376         }
 377
 378         if (!oldpkg->replaces_count) {
 379                 oldpkg->replaces_count = newpkg->replaces_count;
 380                 newpkg->replaces_count = 0;
 381
 382                 oldpkg->replaces = newpkg->replaces;
 383                 newpkg->replaces = NULL;
 384         }
 385
 386         if (!pkg_get_string(oldpkg, PKG_FILENAME))
 387                 pkg_set_string(oldpkg, PKG_FILENAME, pkg_get_string(newpkg, PKG_FILENAME));
 388         if (!pkg_get_string(oldpkg, PKG_LOCAL_FILENAME))
 389                 pkg_set_string(oldpkg, PKG_LOCAL_FILENAME, pkg_get_string(newpkg, PKG_LOCAL_FILENAME));
 390         if (!oldpkg->tmp_unpack_dir)
 391                 oldpkg->tmp_unpack_dir = xstrdup(newpkg->tmp_unpack_dir);
 392         if (!pkg_get_string(oldpkg, PKG_MD5SUM))
 393                 pkg_set_string(oldpkg, PKG_MD5SUM, pkg_get_string(newpkg, PKG_MD5SUM));
 394         if (!pkg_get_string(oldpkg, PKG_SHA256SUM))
 395                 pkg_set_string(oldpkg, PKG_SHA256SUM, pkg_get_string(newpkg, PKG_SHA256SUM));
 396         if (!oldpkg->size)
 397                 oldpkg->size = newpkg->size;
 398         if (!oldpkg->installed_size)
 399                 oldpkg->installed_size = newpkg->installed_size;
 400         if (!pkg_get_string(oldpkg, PKG_PRIORITY))
 401                 pkg_set_string(oldpkg, PKG_PRIORITY, pkg_get_string(newpkg, PKG_PRIORITY));
 402         if (!pkg_get_string(oldpkg, PKG_SOURCE))
 403                 pkg_set_string(oldpkg, PKG_SOURCE, pkg_get_string(newpkg, PKG_SOURCE));
 404
 405         if (nv_pair_list_empty(&oldpkg->conffiles)) {
 406                 list_splice_init(&newpkg->conffiles.head,
 407                                  &oldpkg->conffiles.head);
 408         }
 409
 410         if (!oldpkg->installed_files) {
 411                 oldpkg->installed_files = newpkg->installed_files;
 412                 oldpkg->installed_files_ref_cnt =
 413                     newpkg->installed_files_ref_cnt;
 414                 newpkg->installed_files = NULL;
 415         }
 416
 417         if (!oldpkg->essential)
 418                 oldpkg->essential = newpkg->essential;
 419
 420         return 0;
 421 }
 422
 423 static void abstract_pkg_init(abstract_pkg_t * ab_pkg)
 424 {
 425         ab_pkg->provided_by = abstract_pkg_vec_alloc();
 426         ab_pkg->dependencies_checked = 0;
 427         ab_pkg->state_status = SS_NOT_INSTALLED;
 428 }
 429
 430 abstract_pkg_t *abstract_pkg_new(void)
 431 {
 432         abstract_pkg_t *ab_pkg;
 433
 434         ab_pkg = xcalloc(1, sizeof(abstract_pkg_t));
 435         abstract_pkg_init(ab_pkg);
 436
 437         return ab_pkg;
 438 }
 439
 440 void set_flags_from_control(pkg_t * pkg)
 441 {
 442         char *file_name;
 443         FILE *fp;
 444
 445         sprintf_alloc(&file_name, "%s/%s.control", pkg->dest->info_dir,
 446                       pkg->name);
 447
 448         fp = fopen(file_name, "r");
 449         if (fp == NULL) {
 450                 opkg_perror(ERROR, "Failed to open %s", file_name);
 451                 free(file_name);
 452                 return;
 453         }
 454
 455         free(file_name);
 456
 457         if (pkg_parse_from_stream(pkg, fp, PFM_ALL ^ PFM_ESSENTIAL)) {
 458                 opkg_msg(DEBUG,
 459                          "Unable to read control file for %s. May be empty.\n",
 460                          pkg->name);
 461         }
 462
 463         fclose(fp);
 464
 465         return;
 466 }
 467
 468 static const char *pkg_state_want_to_str(pkg_state_want_t sw)
 469 {
 470         int i;
 471
 472         for (i = 0; i < ARRAY_SIZE(pkg_state_want_map); i++) {
 473                 if (pkg_state_want_map[i].value == sw) {
 474                         return pkg_state_want_map[i].str;
 475                 }
 476         }
 477
 478         opkg_msg(ERROR, "Internal error: state_want=%d\n", sw);
 479         return "<STATE_WANT_UNKNOWN>";
 480 }
 481
 482 pkg_state_want_t pkg_state_want_from_str(char *str)
 483 {
 484         int i;
 485
 486         for (i = 0; i < ARRAY_SIZE(pkg_state_want_map); i++) {
 487                 if (strcmp(str, pkg_state_want_map[i].str) == 0) {
 488                         return pkg_state_want_map[i].value;
 489                 }
 490         }
 491
 492         opkg_msg(ERROR, "Internal error: state_want=%s\n", str);
 493         return SW_UNKNOWN;
 494 }
 495
 496 static char *pkg_state_flag_to_str(pkg_state_flag_t sf)
 497 {
 498         int i;
 499         unsigned int len;
 500         char *str;
 501
 502         /* clear the temporary flags before converting to string */
 503         sf &= SF_NONVOLATILE_FLAGS;
 504
 505         if (sf == 0)
 506                 return xstrdup("ok");
 507
 508         len = 0;
 509         for (i = 0; i < ARRAY_SIZE(pkg_state_flag_map); i++) {
 510                 if (sf & pkg_state_flag_map[i].value)
 511                         len += strlen(pkg_state_flag_map[i].str) + 1;
 512         }
 513
 514         str = xmalloc(len + 1);
 515         str[0] = '\0';
 516
 517         for (i = 0; i < ARRAY_SIZE(pkg_state_flag_map); i++) {
 518                 if (sf & pkg_state_flag_map[i].value) {
 519                         strncat(str, pkg_state_flag_map[i].str, len);
 520                         strncat(str, ",", len);
 521                 }
 522         }
 523
 524         len = strlen(str);
 525         str[len - 1] = '\0';    /* squash last comma */
 526
 527         return str;
 528 }
 529
 530 pkg_state_flag_t pkg_state_flag_from_str(const char *str)
 531 {
 532         int i;
 533         int sf = SF_OK;
 534         const char *sfname;
 535         unsigned int sfname_len;
 536
 537         if (strcmp(str, "ok") == 0) {
 538                 return SF_OK;
 539         }
 540         for (i = 0; i < ARRAY_SIZE(pkg_state_flag_map); i++) {
 541                 sfname = pkg_state_flag_map[i].str;
 542                 sfname_len = strlen(sfname);
 543                 if (strncmp(str, sfname, sfname_len) == 0) {
 544                         sf |= pkg_state_flag_map[i].value;
 545                         str += sfname_len;
 546                         if (str[0] == ',') {
 547                                 str++;
 548                         } else {
 549                                 break;
 550                         }
 551                 }
 552         }
 553
 554         return sf;
 555 }
 556
 557 static const char *pkg_state_status_to_str(pkg_state_status_t ss)
 558 {
 559         int i;
 560
 561         for (i = 0; i < ARRAY_SIZE(pkg_state_status_map); i++) {
 562                 if (pkg_state_status_map[i].value == ss) {
 563                         return pkg_state_status_map[i].str;
 564                 }
 565         }
 566
 567         opkg_msg(ERROR, "Internal error: state_status=%d\n", ss);
 568         return "<STATE_STATUS_UNKNOWN>";
 569 }
 570
 571 pkg_state_status_t pkg_state_status_from_str(const char *str)
 572 {
 573         int i;
 574
 575         for (i = 0; i < ARRAY_SIZE(pkg_state_status_map); i++) {
 576                 if (strcmp(str, pkg_state_status_map[i].str) == 0) {
 577                         return pkg_state_status_map[i].value;
 578                 }
 579         }
 580
 581         opkg_msg(ERROR, "Internal error: state_status=%s\n", str);
 582         return SS_NOT_INSTALLED;
 583 }
 584
 585 void pkg_formatted_field(FILE * fp, pkg_t * pkg, const char *field)
 586 {
 587         int i, j;
 588         char *str;
 589         const char *p;
 590         int depends_count = pkg->pre_depends_count +
 591             pkg->depends_count + pkg->recommends_count + pkg->suggests_count;
 592
 593         if (strlen(field) < PKG_MINIMUM_FIELD_NAME_LEN) {
 594                 goto UNKNOWN_FMT_FIELD;
 595         }
 596
 597         switch (field[0]) {
 598         case 'a':
 599         case 'A':
 600                 if (strcasecmp(field, "Architecture") == 0) {
 601                         p = pkg_get_string(pkg, PKG_ARCHITECTURE);
 602                         if (p) {
 603                                 fprintf(fp, "Architecture: %s\n",
 604                                         p);
 605                         }
 606                 } else if (strcasecmp(field, "Auto-Installed") == 0) {
 607                         if (pkg->auto_installed)
 608                                 fprintf(fp, "Auto-Installed: yes\n");
 609                 } else {
 610                         goto UNKNOWN_FMT_FIELD;
 611                 }
 612                 break;
 613         case 'c':
 614         case 'C':
 615                 if (strcasecmp(field, "Conffiles") == 0) {
 616                         conffile_list_elt_t *iter;
 617
 618                         if (nv_pair_list_empty(&pkg->conffiles))
 619                                 return;
 620
 621                         fprintf(fp, "Conffiles:\n");
 622                         for (iter = nv_pair_list_first(&pkg->conffiles); iter;
 623                              iter = nv_pair_list_next(&pkg->conffiles, iter)) {
 624                                 if (((conffile_t *) iter->data)->name
 625                                     && ((conffile_t *) iter->data)->value) {
 626                                         fprintf(fp, " %s %s\n",
 627                                                 ((conffile_t *) iter->data)->
 628                                                 name,
 629                                                 ((conffile_t *) iter->data)->
 630                                                 value);
 631                                 }
 632                         }
 633                 } else if (strcasecmp(field, "Conflicts") == 0) {
 634                         struct depend *cdep;
 635                         if (pkg->conflicts_count) {
 636                                 fprintf(fp, "Conflicts:");
 637                                 for (i = 0; i < pkg->conflicts_count; i++) {
 638                                         cdep =
 639                                             pkg->conflicts[i].possibilities[0];
 640                                         fprintf(fp, "%s %s", i == 0 ? "" : ",",
 641                                                 cdep->pkg->name);
 642                                         if (cdep->version) {
 643                                                 fprintf(fp, " (%s%s)",
 644                                                         constraint_to_str(cdep->
 645                                                                           constraint),
 646                                                         cdep->version);
 647                                         }
 648                                 }
 649                                 fprintf(fp, "\n");
 650                         }
 651                 } else {
 652                         goto UNKNOWN_FMT_FIELD;
 653                 }
 654                 break;
 655         case 'd':
 656         case 'D':
 657                 if (strcasecmp(field, "Depends") == 0) {
 658                         if (pkg->depends_count) {
 659                                 fprintf(fp, "Depends:");
 660                                 for (j = 0, i = 0; i < depends_count; i++) {
 661                                         if (pkg->depends[i].type != DEPEND)
 662                                                 continue;
 663                                         str = pkg_depend_str(pkg, i);
 664                                         fprintf(fp, "%s %s", j == 0 ? "" : ",",
 665                                                 str);
 666                                         free(str);
 667                                         j++;
 668                                 }
 669                                 fprintf(fp, "\n");
 670                         }
 671                 } else if (strcasecmp(field, "Description") == 0) {
 672                         p = pkg_get_string(pkg, PKG_DESCRIPTION);
 673                         if (p) {
 674                                 fprintf(fp, "Description: %s\n",
 675                                         p);
 676                         }
 677                 } else {
 678                         goto UNKNOWN_FMT_FIELD;
 679                 }
 680                 break;
 681         case 'e':
 682         case 'E':
 683                 if (pkg->essential) {
 684                         fprintf(fp, "Essential: yes\n");
 685                 }
 686                 break;
 687         case 'f':
 688         case 'F':
 689                 p = pkg_get_string(pkg, PKG_FILENAME);
 690                 if (p) {
 691                         fprintf(fp, "Filename: %s\n", p);
 692                 }
 693                 break;
 694         case 'i':
 695         case 'I':
 696                 if (strcasecmp(field, "Installed-Size") == 0) {
 697                         fprintf(fp, "Installed-Size: %ld\n",
 698                                 pkg->installed_size);
 699                 } else if (strcasecmp(field, "Installed-Time") == 0
 700                            && pkg->installed_time) {
 701                         fprintf(fp, "Installed-Time: %lu\n",
 702                                 pkg->installed_time);
 703                 }
 704                 break;
 705         case 'm':
 706         case 'M':
 707                 if (strcasecmp(field, "Maintainer") == 0) {
 708                         p = pkg_get_string(pkg, PKG_MAINTAINER);
 709                         if (p) {
 710                                 fprintf(fp, "Maintainer: %s\n", p);
 711                         }
 712                 } else if (strcasecmp(field, "MD5sum") == 0) {
 713                         p = pkg_get_string(pkg, PKG_MD5SUM);
 714                         if (p) {
 715                                 fprintf(fp, "MD5Sum: %s\n", p);
 716                         }
 717                 } else {
 718                         goto UNKNOWN_FMT_FIELD;
 719                 }
 720                 break;
 721         case 'p':
 722         case 'P':
 723                 if (strcasecmp(field, "Package") == 0) {
 724                         fprintf(fp, "Package: %s\n", pkg->name);
 725                 } else if (strcasecmp(field, "Priority") == 0) {
 726                         fprintf(fp, "Priority: %s\n", pkg_get_string(pkg, PKG_PRIORITY));
 727                 } else if (strcasecmp(field, "Provides") == 0) {
 728                         if (pkg->provides_count > 1) {
 729                                 fprintf(fp, "Provides:");
 730                                 for (i = 1; i < pkg->provides_count; i++) {
 731                                         fprintf(fp, "%s %s", i == 1 ? "" : ",",
 732                                                 pkg->provides[i]->name);
 733                                 }
 734                                 fprintf(fp, "\n");
 735                         }
 736                 } else {
 737                         goto UNKNOWN_FMT_FIELD;
 738                 }
 739                 break;
 740         case 'r':
 741         case 'R':
 742                 if (strcasecmp(field, "Replaces") == 0) {
 743                         if (pkg->replaces_count) {
 744                                 fprintf(fp, "Replaces:");
 745                                 for (i = 0; i < pkg->replaces_count; i++) {
 746                                         fprintf(fp, "%s %s", i == 0 ? "" : ",",
 747                                                 pkg->replaces[i]->name);
 748                                 }
 749                                 fprintf(fp, "\n");
 750                         }
 751                 } else if (strcasecmp(field, "Recommends") == 0) {
 752                         if (pkg->recommends_count) {
 753                                 fprintf(fp, "Recommends:");
 754                                 for (j = 0, i = 0; i < depends_count; i++) {
 755                                         if (pkg->depends[i].type != RECOMMEND)
 756                                                 continue;
 757                                         str = pkg_depend_str(pkg, i);
 758                                         fprintf(fp, "%s %s", j == 0 ? "" : ",",
 759                                                 str);
 760                                         free(str);
 761                                         j++;
 762                                 }
 763                                 fprintf(fp, "\n");
 764                         }
 765                 } else {
 766                         goto UNKNOWN_FMT_FIELD;
 767                 }
 768                 break;
 769         case 's':
 770         case 'S':
 771                 if (strcasecmp(field, "Section") == 0) {
 772                         p = pkg_get_string(pkg, PKG_SECTION);
 773                         if (p) {
 774                                 fprintf(fp, "Section: %s\n", p);
 775                         }
 776 #if defined HAVE_SHA256
 777                 } else if (strcasecmp(field, "SHA256sum") == 0) {
 778                         p = pkg_get_string(pkg, PKG_SHA256SUM);
 779                         if (p) {
 780                                 fprintf(fp, "SHA256sum: %s\n", p);
 781                         }
 782 #endif
 783                 } else if (strcasecmp(field, "Size") == 0) {
 784                         if (pkg->size) {
 785                                 fprintf(fp, "Size: %ld\n", pkg->size);
 786                         }
 787                 } else if (strcasecmp(field, "Source") == 0) {
 788                         p = pkg_get_string(pkg, PKG_SOURCE);
 789                         if (p) {
 790                                 fprintf(fp, "Source: %s\n", p);
 791                         }
 792                 } else if (strcasecmp(field, "Status") == 0) {
 793                         char *pflag = pkg_state_flag_to_str(pkg->state_flag);
 794                         fprintf(fp, "Status: %s %s %s\n",
 795                                 pkg_state_want_to_str(pkg->state_want),
 796                                 pflag,
 797                                 pkg_state_status_to_str(pkg->state_status));
 798                         free(pflag);
 799                 } else if (strcasecmp(field, "Suggests") == 0) {
 800                         if (pkg->suggests_count) {
 801                                 fprintf(fp, "Suggests:");
 802                                 for (j = 0, i = 0; i < depends_count; i++) {
 803                                         if (pkg->depends[i].type != SUGGEST)
 804                                                 continue;
 805                                         str = pkg_depend_str(pkg, i);
 806                                         fprintf(fp, "%s %s", j == 0 ? "" : ",",
 807                                                 str);
 808                                         free(str);
 809                                         j++;
 810                                 }
 811                                 fprintf(fp, "\n");
 812                         }
 813                 } else {
 814                         goto UNKNOWN_FMT_FIELD;
 815                 }
 816                 break;
 817         case 't':
 818         case 'T':
 819                 if (strcasecmp(field, "Tags") == 0) {
 820                         p = pkg_get_string(pkg, PKG_TAGS);
 821                         if (p) {
 822                                 fprintf(fp, "Tags: %s\n", p);
 823                         }
 824                 }
 825                 break;
 826         case 'v':
 827         case 'V':
 828                 {
 829                         char *version = pkg_version_str_alloc(pkg);
 830                         if (version == NULL)
 831                                 return;
 832                         fprintf(fp, "Version: %s\n", version);
 833                         free(version);
 834                 }
 835                 break;
 836         default:
 837                 goto UNKNOWN_FMT_FIELD;
 838         }
 839
 840         return;
 841
 842 UNKNOWN_FMT_FIELD:
 843         opkg_msg(ERROR, "Internal error: field=%s\n", field);
 844 }
 845
 846 void pkg_formatted_info(FILE * fp, pkg_t * pkg)
 847 {
 848         pkg_formatted_field(fp, pkg, "Package");
 849         pkg_formatted_field(fp, pkg, "Version");
 850         pkg_formatted_field(fp, pkg, "Depends");
 851         pkg_formatted_field(fp, pkg, "Recommends");
 852         pkg_formatted_field(fp, pkg, "Suggests");
 853         pkg_formatted_field(fp, pkg, "Provides");
 854         pkg_formatted_field(fp, pkg, "Replaces");
 855         pkg_formatted_field(fp, pkg, "Conflicts");
 856         pkg_formatted_field(fp, pkg, "Status");
 857         pkg_formatted_field(fp, pkg, "Section");
 858         pkg_formatted_field(fp, pkg, "Essential");
 859         pkg_formatted_field(fp, pkg, "Architecture");
 860         pkg_formatted_field(fp, pkg, "Maintainer");
 861         pkg_formatted_field(fp, pkg, "MD5sum");
 862         pkg_formatted_field(fp, pkg, "Size");
 863         pkg_formatted_field(fp, pkg, "Filename");
 864         pkg_formatted_field(fp, pkg, "Conffiles");
 865         pkg_formatted_field(fp, pkg, "Source");
 866         pkg_formatted_field(fp, pkg, "Description");
 867         pkg_formatted_field(fp, pkg, "Installed-Time");
 868         pkg_formatted_field(fp, pkg, "Tags");
 869         fputs("\n", fp);
 870 }
 871
 872 void pkg_print_status(pkg_t * pkg, FILE * file)
 873 {
 874         if (pkg == NULL) {
 875                 return;
 876         }
 877
 878         pkg_formatted_field(file, pkg, "Package");
 879         pkg_formatted_field(file, pkg, "Version");
 880         pkg_formatted_field(file, pkg, "Depends");
 881         pkg_formatted_field(file, pkg, "Recommends");
 882         pkg_formatted_field(file, pkg, "Suggests");
 883         pkg_formatted_field(file, pkg, "Provides");
 884         pkg_formatted_field(file, pkg, "Replaces");
 885         pkg_formatted_field(file, pkg, "Conflicts");
 886         pkg_formatted_field(file, pkg, "Status");
 887         pkg_formatted_field(file, pkg, "Essential");
 888         pkg_formatted_field(file, pkg, "Architecture");
 889         pkg_formatted_field(file, pkg, "Conffiles");
 890         pkg_formatted_field(file, pkg, "Installed-Time");
 891         pkg_formatted_field(file, pkg, "Auto-Installed");
 892         fputs("\n", file);
 893 }
 894
 895 /*
 896  * libdpkg - Debian packaging suite library routines
 897  * vercmp.c - comparison of version numbers
 898  *
 899  * Copyright (C) 1995 Ian Jackson <iwj10@cus.cam.ac.uk>
 900  */
 901
 902 /* assume ascii; warning: evaluates x multiple times! */
 903 #define order(x) ((x) == '~' ? -1 \
 904                 : isdigit((x)) ? 0 \
 905                 : !(x) ? 0 \
 906                 : isalpha((x)) ? (x) \
 907                 : (x) + 256)
 908
 909 static int verrevcmp(const char *val, const char *ref)
 910 {
 911         if (!val)
 912                 val = "";
 913         if (!ref)
 914                 ref = "";
 915
 916         while (*val || *ref) {
 917                 int first_diff = 0;
 918
 919                 while ((*val && !isdigit(*val)) || (*ref && !isdigit(*ref))) {
 920                         int vc = order(*val), rc = order(*ref);
 921                         if (vc != rc)
 922                                 return vc - rc;
 923                         val++;
 924                         ref++;
 925                 }
 926
 927                 while (*val == '0')
 928                         val++;
 929                 while (*ref == '0')
 930                         ref++;
 931                 while (isdigit(*val) && isdigit(*ref)) {
 932                         if (!first_diff)
 933                                 first_diff = *val - *ref;
 934                         val++;
 935                         ref++;
 936                 }
 937                 if (isdigit(*val))
 938                         return 1;
 939                 if (isdigit(*ref))
 940                         return -1;
 941                 if (first_diff)
 942                         return first_diff;
 943         }
 944         return 0;
 945 }
 946
 947 int pkg_compare_versions(const pkg_t * pkg, const pkg_t * ref_pkg)
 948 {
 949         unsigned int epoch1 = (unsigned int) pkg_get_int(pkg, PKG_EPOCH);
 950         unsigned int epoch2 = (unsigned int) pkg_get_int(ref_pkg, PKG_EPOCH);
 951         char *revision1 = pkg_get_ptr(pkg, PKG_REVISION);
 952         char *revision2 = pkg_get_ptr(ref_pkg, PKG_REVISION);
 953         const char *version1 = pkg_get_string(pkg, PKG_VERSION);
 954         const char *version2 = pkg_get_string(ref_pkg, PKG_VERSION);
 955         int r;
 956
 957         if (epoch1 > epoch2) {
 958                 return 1;
 959         }
 960
 961         if (epoch1 < epoch2) {
 962                 return -1;
 963         }
 964
 965         r = verrevcmp(version1, version2);
 966         if (r) {
 967                 return r;
 968         }
 969
 970         r = verrevcmp(revision1, revision2);
 971         if (r) {
 972                 return r;
 973         }
 974
 975         return r;
 976 }
 977
 978 int pkg_version_satisfied(pkg_t * it, pkg_t * ref, const char *op)
 979 {
 980         int r;
 981
 982         r = pkg_compare_versions(it, ref);
 983
 984         if (strcmp(op, "<=") == 0 || strcmp(op, "<") == 0) {
 985                 return r <= 0;
 986         }
 987
 988         if (strcmp(op, ">=") == 0 || strcmp(op, ">") == 0) {
 989                 return r >= 0;
 990         }
 991
 992         if (strcmp(op, "<<") == 0) {
 993                 return r < 0;
 994         }
 995
 996         if (strcmp(op, ">>") == 0) {
 997                 return r > 0;
 998         }
 999
1000         if (strcmp(op, "=") == 0) {
1001                 return r == 0;
1002         }
1003
1004         opkg_msg(ERROR, "Unknown operator: %s.\n", op);
1005         return 0;
1006 }
1007
1008 int pkg_name_version_and_architecture_compare(const void *p1, const void *p2)
1009 {
1010         const pkg_t * a = *(const pkg_t **)p1;
1011         const pkg_t * b = *(const pkg_t **)p2;
1012         int namecmp;
1013         int vercmp;
1014         if (!a->name || !b->name) {
1015                 opkg_msg(ERROR, "Internal error: a->name=%p, b->name=%p.\n",
1016                          a->name, b->name);
1017                 return 0;
1018         }
1019
1020         namecmp = strcmp(a->name, b->name);
1021         if (namecmp)
1022                 return namecmp;
1023         vercmp = pkg_compare_versions(a, b);
1024         if (vercmp)
1025                 return vercmp;
1026         if (!a->arch_priority || !b->arch_priority) {
1027                 opkg_msg(ERROR,
1028                          "Internal error: a->arch_priority=%i b->arch_priority=%i.\n",
1029                          a->arch_priority, b->arch_priority);
1030                 return 0;
1031         }
1032         if (a->arch_priority > b->arch_priority)
1033                 return 1;
1034         if (a->arch_priority < b->arch_priority)
1035                 return -1;
1036         return 0;
1037 }
1038
1039 int abstract_pkg_name_compare(const void *p1, const void *p2)
1040 {
1041         const abstract_pkg_t *a = *(const abstract_pkg_t **)p1;
1042         const abstract_pkg_t *b = *(const abstract_pkg_t **)p2;
1043         if (!a->name || !b->name) {
1044                 opkg_msg(ERROR, "Internal error: a->name=%p b->name=%p.\n",
1045                          a->name, b->name);
1046                 return 0;
1047         }
1048         return strcmp(a->name, b->name);
1049 }
1050
1051 char *pkg_version_str_alloc(pkg_t * pkg)
1052 {
1053         const char *verstr;
1054         char *version, *revptr;
1055         unsigned int epoch = (unsigned int) pkg_get_int(pkg, PKG_EPOCH);
1056
1057         revptr = pkg_get_ptr(pkg, PKG_REVISION);
1058         verstr = pkg_get_string(pkg, PKG_VERSION);
1059
1060         if (epoch) {
1061                 if (revptr)
1062                         sprintf_alloc(&version, "%d:%s-%s",
1063                                       epoch, verstr, revptr);
1064                 else
1065                         sprintf_alloc(&version, "%d:%s",
1066                                       epoch, verstr);
1067         } else {
1068                 if (revptr)
1069                         sprintf_alloc(&version, "%s-%s",
1070                                       verstr, revptr);
1071                 else
1072                         version = xstrdup(verstr);
1073         }
1074
1075         return version;
1076 }
1077
1078 /*
1079  * XXX: this should be broken into two functions
1080  */
1081 str_list_t *pkg_get_installed_files(pkg_t * pkg)
1082 {
1083         int err, fd;
1084         char *list_file_name = NULL;
1085         FILE *list_file = NULL;
1086         char *line;
1087         char *installed_file_name;
1088         unsigned int rootdirlen = 0;
1089         int list_from_package;
1090         const char *local_filename;
1091
1092         pkg->installed_files_ref_cnt++;
1093
1094         if (pkg->installed_files) {
1095                 return pkg->installed_files;
1096         }
1097
1098         pkg->installed_files = str_list_alloc();
1099
1100         /*
1101          * For installed packages, look at the package.list file in the database.
1102          * For uninstalled packages, get the file list directly from the package.
1103          */
1104         if (pkg->state_status == SS_NOT_INSTALLED || pkg->dest == NULL)
1105                 list_from_package = 1;
1106         else
1107                 list_from_package = 0;
1108
1109         if (list_from_package) {
1110                 local_filename = pkg_get_string(pkg, PKG_LOCAL_FILENAME);
1111
1112                 if (!local_filename) {
1113                         return pkg->installed_files;
1114                 }
1115                 /* XXX: CLEANUP: Maybe rewrite this to avoid using a temporary
1116                    file. In other words, change deb_extract so that it can
1117                    simply return the file list as a char *[] rather than
1118                    insisting on writing it to a FILE * as it does now. */
1119                 sprintf_alloc(&list_file_name, "%s/%s.list.XXXXXX",
1120                               conf->tmp_dir, pkg->name);
1121                 fd = mkstemp(list_file_name);
1122                 if (fd == -1) {
1123                         opkg_perror(ERROR, "Failed to make temp file %s.",
1124                                     list_file_name);
1125                         free(list_file_name);
1126                         return pkg->installed_files;
1127                 }
1128                 list_file = fdopen(fd, "r+");
1129                 if (list_file == NULL) {
1130                         opkg_perror(ERROR, "Failed to fdopen temp file %s.",
1131                                     list_file_name);
1132                         close(fd);
1133                         unlink(list_file_name);
1134                         free(list_file_name);
1135                         return pkg->installed_files;
1136                 }
1137                 err = pkg_extract_data_file_names_to_stream(pkg, list_file);
1138                 if (err) {
1139                         opkg_msg(ERROR, "Error extracting file list from %s.\n",
1140                                  local_filename);
1141                         fclose(list_file);
1142                         unlink(list_file_name);
1143                         free(list_file_name);
1144                         str_list_deinit(pkg->installed_files);
1145                         pkg->installed_files = NULL;
1146                         return NULL;
1147                 }
1148                 rewind(list_file);
1149         } else {
1150                 sprintf_alloc(&list_file_name, "%s/%s.list",
1151                               pkg->dest->info_dir, pkg->name);
1152                 list_file = fopen(list_file_name, "r");
1153                 if (list_file == NULL) {
1154                         opkg_perror(ERROR, "Failed to open %s", list_file_name);
1155                         free(list_file_name);
1156                         return pkg->installed_files;
1157                 }
1158                 free(list_file_name);
1159         }
1160
1161         if (conf->offline_root)
1162                 rootdirlen = strlen(conf->offline_root);
1163
1164         while (1) {
1165                 char *file_name;
1166
1167                 line = file_read_line_alloc(list_file);
1168                 if (line == NULL) {
1169                         break;
1170                 }
1171                 file_name = line;
1172
1173                 if (list_from_package) {
1174                         if (*file_name == '.') {
1175                                 file_name++;
1176                         }
1177                         if (*file_name == '/') {
1178                                 file_name++;
1179                         }
1180                         sprintf_alloc(&installed_file_name, "%s%s",
1181                                       pkg->dest->root_dir, file_name);
1182                 } else {
1183                         if (conf->offline_root &&
1184                             strncmp(conf->offline_root, file_name,
1185                                     rootdirlen)) {
1186                                 sprintf_alloc(&installed_file_name, "%s%s",
1187                                               conf->offline_root, file_name);
1188                         } else {
1189                                 // already contains root_dir as header -> ABSOLUTE
1190                                 sprintf_alloc(&installed_file_name, "%s",
1191                                               file_name);
1192                         }
1193                 }
1194                 str_list_append(pkg->installed_files, installed_file_name);
1195                 free(installed_file_name);
1196                 free(line);
1197         }
1198
1199         fclose(list_file);
1200
1201         if (list_from_package) {
1202                 unlink(list_file_name);
1203                 free(list_file_name);
1204         }
1205
1206         return pkg->installed_files;
1207 }
1208
1209 /* XXX: CLEANUP: This function and it's counterpart,
1210    (pkg_get_installed_files), do not match our init/deinit naming
1211    convention. Nor the alloc/free convention. But, then again, neither
1212    of these conventions currrently fit the way these two functions
1213    work. */
1214 void pkg_free_installed_files(pkg_t * pkg)
1215 {
1216         pkg->installed_files_ref_cnt--;
1217
1218         if (pkg->installed_files_ref_cnt > 0)
1219                 return;
1220
1221         if (pkg->installed_files) {
1222                 str_list_purge(pkg->installed_files);
1223         }
1224
1225         pkg->installed_files = NULL;
1226 }
1227
1228 void pkg_remove_installed_files_list(pkg_t * pkg)
1229 {
1230         char *list_file_name;
1231
1232         sprintf_alloc(&list_file_name, "%s/%s.list",
1233                       pkg->dest->info_dir, pkg->name);
1234
1235         if (!conf->noaction)
1236                 (void)unlink(list_file_name);
1237
1238         free(list_file_name);
1239 }
1240
1241 conffile_t *pkg_get_conffile(pkg_t * pkg, const char *file_name)
1242 {
1243         conffile_list_elt_t *iter;
1244         conffile_t *conffile;
1245
1246         if (pkg == NULL) {
1247                 return NULL;
1248         }
1249
1250         for (iter = nv_pair_list_first(&pkg->conffiles); iter;
1251              iter = nv_pair_list_next(&pkg->conffiles, iter)) {
1252                 conffile = (conffile_t *) iter->data;
1253
1254                 if (strcmp(conffile->name, file_name) == 0) {
1255                         return conffile;
1256                 }
1257         }
1258
1259         return NULL;
1260 }
1261
1262 int pkg_run_script(pkg_t * pkg, const char *script, const char *args)
1263 {
1264         int err;
1265         char *path;
1266         char *cmd;
1267
1268         if (conf->noaction)
1269                 return 0;
1270
1271         /* XXX: FEATURE: When conf->offline_root is set, we should run the
1272            maintainer script within a chroot environment. */
1273         if (conf->offline_root && !conf->force_postinstall) {
1274                 opkg_msg(INFO, "Offline root mode: not running %s.%s.\n",
1275                          pkg->name, script);
1276                 return 0;
1277         }
1278
1279         /* Installed packages have scripts in pkg->dest->info_dir, uninstalled packages
1280            have scripts in pkg->tmp_unpack_dir. */
1281         if (pkg->state_status == SS_INSTALLED
1282             || pkg->state_status == SS_UNPACKED) {
1283                 if (pkg->dest == NULL) {
1284                         opkg_msg(ERROR, "Internal error: %s has a NULL dest.\n",
1285                                  pkg->name);
1286                         return -1;
1287                 }
1288                 sprintf_alloc(&path, "%s/%s.%s", pkg->dest->info_dir, pkg->name,
1289                               script);
1290         } else {
1291                 if (pkg->tmp_unpack_dir == NULL) {
1292                         opkg_msg(ERROR,
1293                                  "Internal error: %s has a NULL tmp_unpack_dir.\n",
1294                                  pkg->name);
1295                         return -1;
1296                 }
1297                 sprintf_alloc(&path, "%s/%s", pkg->tmp_unpack_dir, script);
1298         }
1299
1300         opkg_msg(INFO, "Running script %s.\n", path);
1301
1302         setenv("PKG_ROOT",
1303                pkg->dest ? pkg->dest->root_dir : conf->default_dest->root_dir,
1304                1);
1305
1306         if (pkg->is_upgrade)
1307                 setenv("PKG_UPGRADE", "1", 1);
1308         else
1309                 setenv("PKG_UPGRADE", "0", 1);
1310
1311         if (!file_exists(path)) {
1312                 free(path);
1313                 return 0;
1314         }
1315
1316         sprintf_alloc(&cmd, "%s %s", path, args);
1317         free(path);
1318         {
1319                 const char *argv[] = { "sh", "-c", cmd, NULL };
1320                 err = xsystem(argv);
1321         }
1322         free(cmd);
1323
1324         if (err) {
1325                 opkg_msg(ERROR,
1326                          "package \"%s\" %s script returned status %d.\n",
1327                          pkg->name, script, err);
1328                 return err;
1329         }
1330
1331         return 0;
1332 }
1333
1334 int pkg_arch_supported(pkg_t * pkg)
1335 {
1336         nv_pair_list_elt_t *l;
1337         char *architecture = pkg_get_string(pkg, PKG_ARCHITECTURE);
1338
1339         if (!architecture)
1340                 return 1;
1341
1342         list_for_each_entry(l, &conf->arch_list.head, node) {
1343                 nv_pair_t *nv = (nv_pair_t *) l->data;
1344                 if (strcmp(nv->name, architecture) == 0) {
1345                         opkg_msg(DEBUG,
1346                                  "Arch %s (priority %s) supported for pkg %s.\n",
1347                                  nv->name, nv->value, pkg->name);
1348                         return 1;
1349                 }
1350         }
1351
1352         opkg_msg(DEBUG, "Arch %s unsupported for pkg %s.\n",
1353                  architecture, pkg->name);
1354         return 0;
1355 }
1356
1357 void pkg_info_preinstall_check(void)
1358 {
1359         int i;
1360         pkg_vec_t *installed_pkgs = pkg_vec_alloc();
1361
1362         /* update the file owner data structure */
1363         opkg_msg(INFO, "Updating file owner list.\n");
1364         pkg_hash_fetch_all_installed(installed_pkgs);
1365         for (i = 0; i < installed_pkgs->len; i++) {
1366                 pkg_t *pkg = installed_pkgs->pkgs[i];
1367                 str_list_t *installed_files = pkg_get_installed_files(pkg);     /* this causes installed_files to be cached */
1368                 str_list_elt_t *iter, *niter;
1369                 if (installed_files == NULL) {
1370                         opkg_msg(ERROR, "Failed to determine installed "
1371                                  "files for pkg %s.\n", pkg->name);
1372                         break;
1373                 }
1374                 for (iter = str_list_first(installed_files), niter =
1375                      str_list_next(installed_files, iter); iter;
1376                      iter = niter, niter =
1377                      str_list_next(installed_files, iter)) {
1378                         char *installed_file = (char *)iter->data;
1379                         file_hash_set_file_owner(installed_file, pkg);
1380                 }
1381                 pkg_free_installed_files(pkg);
1382         }
1383         pkg_vec_free(installed_pkgs);
1384 }
1385
1386 struct pkg_write_filelist_data {
1387         pkg_t *pkg;
1388         FILE *stream;
1389 };
1390
1391 static void
1392 pkg_write_filelist_helper(const char *key, void *entry_, void *data_)
1393 {
1394         struct pkg_write_filelist_data *data = data_;
1395         pkg_t *entry = entry_;
1396         if (entry == data->pkg) {
1397                 fprintf(data->stream, "%s\n", key);
1398         }
1399 }
1400
1401 int pkg_write_filelist(pkg_t * pkg)
1402 {
1403         struct pkg_write_filelist_data data;
1404         char *list_file_name;
1405
1406         sprintf_alloc(&list_file_name, "%s/%s.list",
1407                       pkg->dest->info_dir, pkg->name);
1408
1409         opkg_msg(INFO, "Creating %s file for pkg %s.\n",
1410                  list_file_name, pkg->name);
1411
1412         data.stream = fopen(list_file_name, "w");
1413         if (!data.stream) {
1414                 opkg_perror(ERROR, "Failed to open %s", list_file_name);
1415                 free(list_file_name);
1416                 return -1;
1417         }
1418
1419         data.pkg = pkg;
1420         hash_table_foreach(&conf->file_hash, pkg_write_filelist_helper, &data);
1421         fclose(data.stream);
1422         free(list_file_name);
1423
1424         pkg->state_flag &= ~SF_FILELIST_CHANGED;
1425
1426         return 0;
1427 }
1428
1429 int pkg_write_changed_filelists(void)
1430 {
1431         pkg_vec_t *installed_pkgs = pkg_vec_alloc();
1432         int i, err, ret = 0;
1433
1434         if (conf->noaction)
1435                 return 0;
1436
1437         opkg_msg(INFO, "Saving changed filelists.\n");
1438
1439         pkg_hash_fetch_all_installed(installed_pkgs);
1440         for (i = 0; i < installed_pkgs->len; i++) {
1441                 pkg_t *pkg = installed_pkgs->pkgs[i];
1442                 if (pkg->state_flag & SF_FILELIST_CHANGED) {
1443                         err = pkg_write_filelist(pkg);
1444                         if (err)
1445                                 ret = -1;
1446                 }
1447         }
1448
1449         pkg_vec_free(installed_pkgs);
1450
1451         return ret;
1452 }