archival/dpkg.c

   1 /*
   2  *  Mini dpkg implementation for busybox.
   3  *  This is not meant as a replacement for dpkg
   4  *
   5  *  Written By Glenn McGrath with the help of others
   6  *  Copyright (C) 2001 by Glenn McGrath
   7  *
   8  *  Started life as a busybox implementation of udpkg
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License as published by
  12  *  the Free Software Foundation; either version 2 of the License, or
  13  *  (at your option) any later version.
  14  *
  15  *  This program is distributed in the hope that it will be useful,
  16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *  GNU Library General Public License for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License
  21  *  along with this program; if not, write to the Free Software
  22  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23  */
  24
  25 /*
  26  * Known difference between busybox dpkg and the official dpkg that i don't
  27  * consider important, its worth keeping a note of differences anyway, just to
  28  * make it easier to maintain.
  29  *  - The first value for the Confflile: field isnt placed on a new line.
  30  *  - When installing a package the Status: field is placed at the end of the
  31  *      section, rather than just after the Package: field.
  32  *
  33  * Bugs that need to be fixed
  34  *  - (unknown, please let me know when you find any)
  35  *
  36  */
  37
  38 #include <fcntl.h>
  39 #include <getopt.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42 #include <unistd.h>
  43 #include "unarchive.h"
  44 #include "busybox.h"
  45
  46 /* NOTE: If you vary HASH_PRIME sizes be aware,
  47  * 1) Tweaking these will have a big effect on how much memory this program uses.
  48  * 2) For computational efficiency these hash tables should be at least 20%
  49  *    larger than the maximum number of elements stored in it.
  50  * 3) All _HASH_PRIME's must be a prime number or chaos is assured, if your looking
  51  *    for a prime, try http://www.utm.edu/research/primes/lists/small/10000.txt
  52  * 4) If you go bigger than 15 bits you may get into trouble (untested) as its
  53  *    sometimes cast to an unsigned int, if you go to 16 bit you will overlap
  54  *    int's and chaos is assured, 16381 is the max prime for 14 bit field
  55  */
  56
  57 /* NAME_HASH_PRIME, Stores package names and versions,
  58  * I estimate it should be at least 50% bigger than PACKAGE_HASH_PRIME,
  59  * as there a lot of duplicate version numbers */
  60 #define NAME_HASH_PRIME 16381
  61 static char *name_hashtable[NAME_HASH_PRIME + 1];
  62
  63 /* PACKAGE_HASH_PRIME, Maximum number of unique packages,
  64  * It must not be smaller than STATUS_HASH_PRIME,
  65  * Currently only packages from status_hashtable are stored in here, but in
  66  * future this may be used to store packages not only from a status file,
  67  * but an available_hashtable, and even multiple packages files.
  68  * Package can be stored more than once if they have different versions.
  69  * e.g. The same package may have different versions in the status file
  70  *      and available file */
  71 #define PACKAGE_HASH_PRIME 10007
  72 typedef struct edge_s {
  73         unsigned int operator:3;
  74         unsigned int type:4;
  75         unsigned int name:14;
  76         unsigned int version:14;
  77 } edge_t;
  78
  79 typedef struct common_node_s {
  80         unsigned int name:14;
  81         unsigned int version:14;
  82         unsigned int num_of_edges:14;
  83         edge_t **edge;
  84 } common_node_t;
  85 static common_node_t *package_hashtable[PACKAGE_HASH_PRIME + 1];
  86
  87 /* Currently it doesnt store packages that have state-status of not-installed
  88  * So it only really has to be the size of the maximum number of packages
  89  * likely to be installed at any one time, so there is a bit of leeway here */
  90 #define STATUS_HASH_PRIME 8191
  91 typedef struct status_node_s {
  92         unsigned int package:14;        /* has to fit PACKAGE_HASH_PRIME */
  93         unsigned int status:14;         /* has to fit STATUS_HASH_PRIME */
  94 } status_node_t;
  95 static status_node_t *status_hashtable[STATUS_HASH_PRIME + 1];
  96
  97 /* Even numbers are for 'extras', like ored dependencies or null */
  98 enum edge_type_e {
  99         EDGE_NULL = 0,
 100         EDGE_PRE_DEPENDS = 1,
 101         EDGE_OR_PRE_DEPENDS = 2,
 102         EDGE_DEPENDS = 3,
 103         EDGE_OR_DEPENDS = 4,
 104         EDGE_REPLACES = 5,
 105         EDGE_PROVIDES = 7,
 106         EDGE_CONFLICTS = 9,
 107         EDGE_SUGGESTS = 11,
 108         EDGE_RECOMMENDS = 13,
 109         EDGE_ENHANCES = 15
 110 };
 111 enum operator_e {
 112         VER_NULL = 0,
 113         VER_EQUAL = 1,
 114         VER_LESS = 2,
 115         VER_LESS_EQUAL = 3,
 116         VER_MORE = 4,
 117         VER_MORE_EQUAL = 5,
 118         VER_ANY = 6
 119 };
 120
 121 enum dpkg_opt_e {
 122         dpkg_opt_purge = 1,
 123         dpkg_opt_remove = 2,
 124         dpkg_opt_unpack = 4,
 125         dpkg_opt_configure = 8,
 126         dpkg_opt_install = 16,
 127         dpkg_opt_package_name = 32,
 128         dpkg_opt_filename = 64,
 129         dpkg_opt_list_installed = 128,
 130         dpkg_opt_force_ignore_depends = 256
 131 };
 132
 133 typedef struct deb_file_s {
 134         char *control_file;
 135         char *filename;
 136         unsigned int package:14;
 137 } deb_file_t;
 138
 139
 140 static void make_hash(const char *key, unsigned int *start, unsigned int *decrement, const int hash_prime)
 141 {
 142         unsigned long int hash_num = key[0];
 143         int len = strlen(key);
 144         int i;
 145
 146         /* Maybe i should have uses a "proper" hashing algorithm here instead
 147          * of making one up myself, seems to be working ok though. */
 148         for(i = 1; i < len; i++) {
 149                 /* shifts the ascii based value and adds it to previous value
 150                  * shift amount is mod 24 because long int is 32 bit and data
 151                  * to be shifted is 8, don't want to shift data to where it has
 152                  * no effect*/
 153                 hash_num += ((key[i] + key[i-1]) << ((key[i] * i) % 24));
 154         }
 155         *start = (unsigned int) hash_num % hash_prime;
 156         *decrement = (unsigned int) 1 + (hash_num % (hash_prime - 1));
 157 }
 158
 159 /* this adds the key to the hash table */
 160 static int search_name_hashtable(const char *key)
 161 {
 162         unsigned int probe_address = 0;
 163         unsigned int probe_decrement = 0;
 164 //      char *temp;
 165
 166         make_hash(key, &probe_address, &probe_decrement, NAME_HASH_PRIME);
 167         while(name_hashtable[probe_address] != NULL) {
 168                 if (strcmp(name_hashtable[probe_address], key) == 0) {
 169                         return(probe_address);
 170                 } else {
 171                         probe_address -= probe_decrement;
 172                         if ((int)probe_address < 0) {
 173                                 probe_address += NAME_HASH_PRIME;
 174                         }
 175                 }
 176         }
 177         name_hashtable[probe_address] = bb_xstrdup(key);
 178         return(probe_address);
 179 }
 180
 181 /* this DOESNT add the key to the hashtable
 182  * TODO make it consistent with search_name_hashtable
 183  */
 184 static unsigned int search_status_hashtable(const char *key)
 185 {
 186         unsigned int probe_address = 0;
 187         unsigned int probe_decrement = 0;
 188
 189         make_hash(key, &probe_address, &probe_decrement, STATUS_HASH_PRIME);
 190         while(status_hashtable[probe_address] != NULL) {
 191                 if (strcmp(key, name_hashtable[package_hashtable[status_hashtable[probe_address]->package]->name]) == 0) {
 192                         break;
 193                 } else {
 194                         probe_address -= probe_decrement;
 195                         if ((int)probe_address < 0) {
 196                                 probe_address += STATUS_HASH_PRIME;
 197                         }
 198                 }
 199         }
 200         return(probe_address);
 201 }
 202
 203 /* Need to rethink version comparison, maybe the official dpkg has something i can use ? */
 204 static int version_compare_part(const char *version1, const char *version2)
 205 {
 206         int upstream_len1 = 0;
 207         int upstream_len2 = 0;
 208         char *name1_char;
 209         char *name2_char;
 210         int len1 = 0;
 211         int len2 = 0;
 212         int tmp_int;
 213         int ver_num1;
 214         int ver_num2;
 215         int ret;
 216
 217         if (version1 == NULL) {
 218                 version1 = bb_xstrdup("");
 219         }
 220         if (version2 == NULL) {
 221                 version2 = bb_xstrdup("");
 222         }
 223         upstream_len1 = strlen(version1);
 224         upstream_len2 = strlen(version2);
 225
 226         while ((len1 < upstream_len1) || (len2 < upstream_len2)) {
 227                 /* Compare non-digit section */
 228                 tmp_int = strcspn(&version1[len1], "0123456789");
 229                 name1_char = bb_xstrndup(&version1[len1], tmp_int);
 230                 len1 += tmp_int;
 231                 tmp_int = strcspn(&version2[len2], "0123456789");
 232                 name2_char = bb_xstrndup(&version2[len2], tmp_int);
 233                 len2 += tmp_int;
 234                 tmp_int = strcmp(name1_char, name2_char);
 235                 free(name1_char);
 236                 free(name2_char);
 237                 if (tmp_int != 0) {
 238                         ret = tmp_int;
 239                         goto cleanup_version_compare_part;
 240                 }
 241
 242                 /* Compare digits */
 243                 tmp_int = strspn(&version1[len1], "0123456789");
 244                 name1_char = bb_xstrndup(&version1[len1], tmp_int);
 245                 len1 += tmp_int;
 246                 tmp_int = strspn(&version2[len2], "0123456789");
 247                 name2_char = bb_xstrndup(&version2[len2], tmp_int);
 248                 len2 += tmp_int;
 249                 ver_num1 = atoi(name1_char);
 250                 ver_num2 = atoi(name2_char);
 251                 free(name1_char);
 252                 free(name2_char);
 253                 if (ver_num1 < ver_num2) {
 254                         ret = -1;
 255                         goto cleanup_version_compare_part;
 256                 }
 257                 else if (ver_num1 > ver_num2) {
 258                         ret = 1;
 259                         goto cleanup_version_compare_part;
 260                 }
 261         }
 262         ret = 0;
 263 cleanup_version_compare_part:
 264         return(ret);
 265 }
 266
 267 /* if ver1 < ver2 return -1,
 268  * if ver1 = ver2 return 0,
 269  * if ver1 > ver2 return 1,
 270  */
 271 static int version_compare(const unsigned int ver1, const unsigned int ver2)
 272 {
 273         char *ch_ver1 = name_hashtable[ver1];
 274         char *ch_ver2 = name_hashtable[ver2];
 275
 276         char epoch1, epoch2;
 277         char *deb_ver1, *deb_ver2;
 278         char *ver1_ptr, *ver2_ptr;
 279         char *upstream_ver1;
 280         char *upstream_ver2;
 281         int result;
 282
 283         /* Compare epoch */
 284         if (ch_ver1[1] == ':') {
 285                 epoch1 = ch_ver1[0];
 286                 ver1_ptr = strchr(ch_ver1, ':') + 1;
 287         } else {
 288                 epoch1 = '0';
 289                 ver1_ptr = ch_ver1;
 290         }
 291         if (ch_ver2[1] == ':') {
 292                 epoch2 = ch_ver2[0];
 293                 ver2_ptr = strchr(ch_ver2, ':') + 1;
 294         } else {
 295                 epoch2 = '0';
 296                 ver2_ptr = ch_ver2;
 297         }
 298         if (epoch1 < epoch2) {
 299                 return(-1);
 300         }
 301         else if (epoch1 > epoch2) {
 302                 return(1);
 303         }
 304
 305         /* Compare upstream version */
 306         upstream_ver1 = bb_xstrdup(ver1_ptr);
 307         upstream_ver2 = bb_xstrdup(ver2_ptr);
 308
 309         /* Chop off debian version, and store for later use */
 310         deb_ver1 = strrchr(upstream_ver1, '-');
 311         deb_ver2 = strrchr(upstream_ver2, '-');
 312         if (deb_ver1) {
 313                 deb_ver1[0] = '\0';
 314                 deb_ver1++;
 315         }
 316         if (deb_ver2) {
 317                 deb_ver2[0] = '\0';
 318                 deb_ver2++;
 319         }
 320         result = version_compare_part(upstream_ver1, upstream_ver2);
 321
 322         free(upstream_ver1);
 323         free(upstream_ver2);
 324
 325         if (result != 0) {
 326                 return(result);
 327         }
 328
 329         /* Compare debian versions */
 330         return(version_compare_part(deb_ver1, deb_ver2));
 331 }
 332
 333 static int test_version(const unsigned int version1, const unsigned int version2, const unsigned int operator)
 334 {
 335         const int version_result = version_compare(version1, version2);
 336         switch(operator) {
 337                 case (VER_ANY):
 338                         return(TRUE);
 339                 case (VER_EQUAL):
 340                         if (version_result == 0) {
 341                                 return(TRUE);
 342                         }
 343                         break;
 344                 case (VER_LESS):
 345                         if (version_result < 0) {
 346                                 return(TRUE);
 347                         }
 348                         break;
 349                 case (VER_LESS_EQUAL):
 350                         if (version_result <= 0) {
 351                                 return(TRUE);
 352                         }
 353                         break;
 354                 case (VER_MORE):
 355                         if (version_result > 0) {
 356                                 return(TRUE);
 357                         }
 358                         break;
 359                 case (VER_MORE_EQUAL):
 360                         if (version_result >= 0) {
 361                                 return(TRUE);
 362                         }
 363                         break;
 364         }
 365         return(FALSE);
 366 }
 367
 368
 369 static int search_package_hashtable(const unsigned int name, const unsigned int version, const unsigned int operator)
 370 {
 371         unsigned int probe_address = 0;
 372         unsigned int probe_decrement = 0;
 373
 374         make_hash(name_hashtable[name], &probe_address, &probe_decrement, PACKAGE_HASH_PRIME);
 375         while(package_hashtable[probe_address] != NULL) {
 376                 if (package_hashtable[probe_address]->name == name) {
 377                         if (operator == VER_ANY) {
 378                                 return(probe_address);
 379                         }
 380                         if (test_version(package_hashtable[probe_address]->version, version, operator)) {
 381                                 return(probe_address);
 382                         }
 383                 }
 384                 probe_address -= probe_decrement;
 385                 if ((int)probe_address < 0) {
 386                         probe_address += PACKAGE_HASH_PRIME;
 387                 }
 388         }
 389         return(probe_address);
 390 }
 391
 392 /*
 393  * This function searches through the entire package_hashtable looking
 394  * for a package which provides "needle". It returns the index into
 395  * the package_hashtable for the providing package.
 396  *
 397  * needle is the index into name_hashtable of the package we are
 398  * looking for.
 399  *
 400  * start_at is the index in the package_hashtable to start looking
 401  * at. If start_at is -1 then start at the beginning. This is to allow
 402  * for repeated searches since more than one package might provide
 403  * needle.
 404  *
 405  * FIXME: I don't think this is very efficient, but I thought I'd keep
 406  * it simple for now until it proves to be a problem.
 407  */
 408 static int search_for_provides(int needle, int start_at) {
 409         int i, j;
 410         common_node_t *p;
 411         for (i = start_at + 1; i < PACKAGE_HASH_PRIME; i++) {
 412                 p = package_hashtable[i];
 413                 if ( p == NULL ) continue;
 414                 for(j = 0; j < p->num_of_edges; j++)
 415                         if ( p->edge[j]->type == EDGE_PROVIDES && p->edge[j]->name == needle )
 416                                 return i;
 417         }
 418         return -1;
 419 }
 420
 421 /*
 422  * Add an edge to a node
 423  */
 424 static void add_edge_to_node(common_node_t *node, edge_t *edge)
 425 {
 426         node->num_of_edges++;
 427         node->edge = xrealloc(node->edge, sizeof(edge_t) * (node->num_of_edges + 1));
 428         node->edge[node->num_of_edges - 1] = edge;
 429 }
 430
 431 /*
 432  * Create one new node and one new edge for every dependency.
 433  *
 434  * Dependencies which contain multiple alternatives are represented as
 435  * an EDGE_OR_PRE_DEPENDS or EDGE_OR_DEPENDS node, followed by a
 436  * number of EDGE_PRE_DEPENDS or EDGE_DEPENDS nodes. The name field of
 437  * the OR edge contains the full dependency string while the version
 438  * field contains the number of EDGE nodes which follow as part of
 439  * this alternative.
 440  */
 441 static void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned int edge_type)
 442 {
 443         char *line = bb_xstrdup(whole_line);
 444         char *line2;
 445         char *line_ptr1 = NULL;
 446         char *line_ptr2 = NULL;
 447         char *field;
 448         char *field2;
 449         char *version;
 450         edge_t *edge;
 451         edge_t *or_edge;
 452         int offset_ch;
 453
 454         field = strtok_r(line, ",", &line_ptr1);
 455         do {
 456                 /* skip leading spaces */
 457                 field += strspn(field, " ");
 458                 line2 = bb_xstrdup(field);
 459                 field2 = strtok_r(line2, "|", &line_ptr2);
 460                 if ( (edge_type == EDGE_DEPENDS || edge_type == EDGE_PRE_DEPENDS) &&
 461                      (strcmp(field, field2) != 0)) {
 462                         or_edge = (edge_t *)xmalloc(sizeof(edge_t));
 463                         or_edge->type = edge_type + 1;
 464                 } else {
 465                         or_edge = NULL;
 466                 }
 467
 468                 if ( or_edge ) {
 469                         or_edge->name = search_name_hashtable(field);
 470                         or_edge->version = 0; // tracks the number of altenatives
 471
 472                         add_edge_to_node(parent_node, or_edge);
 473                 }
 474
 475                 do {
 476                         edge = (edge_t *) xmalloc(sizeof(edge_t));
 477                         edge->type = edge_type;
 478
 479                         /* Skip any extra leading spaces */
 480                         field2 += strspn(field2, " ");
 481
 482                         /* Get dependency version info */
 483                         version = strchr(field2, '(');
 484                         if (version == NULL) {
 485                                 edge->operator = VER_ANY;
 486                                 /* Get the versions hash number, adding it if the number isnt already in there */
 487                                 edge->version = search_name_hashtable("ANY");
 488                         } else {
 489                                 /* Skip leading ' ' or '(' */
 490                                 version += strspn(field2, " ");
 491                                 version += strspn(version, "(");
 492                                 /* Calculate length of any operator characters */
 493                                 offset_ch = strspn(version, "<=>");
 494                                 /* Determine operator */
 495                                 if (offset_ch > 0) {
 496                                         if (strncmp(version, "=", offset_ch) == 0) {
 497                                                 edge->operator = VER_EQUAL;
 498                                         }
 499                                         else if (strncmp(version, "<<", offset_ch) == 0) {
 500                                                 edge->operator = VER_LESS;
 501                                         }
 502                                         else if (strncmp(version, "<=", offset_ch) == 0) {
 503                                                 edge->operator = VER_LESS_EQUAL;
 504                                         }
 505                                         else if (strncmp(version, ">>", offset_ch) == 0) {
 506                                                 edge->operator = VER_MORE;
 507                                         }
 508                                         else if (strncmp(version, ">=", offset_ch) == 0) {
 509                                                 edge->operator = VER_MORE_EQUAL;
 510                                         } else {
 511                                                 bb_error_msg_and_die("Illegal operator\n");
 512                                         }
 513                                 }
 514                                 /* skip to start of version numbers */
 515                                 version += offset_ch;
 516                                 version += strspn(version, " ");
 517
 518                                 /* Truncate version at trailing ' ' or ')' */
 519                                 version[strcspn(version, " )")] = '\0';
 520                                 /* Get the versions hash number, adding it if the number isnt already in there */
 521                                 edge->version = search_name_hashtable(version);
 522                         }
 523
 524                         /* Get the dependency name */
 525                         field2[strcspn(field2, " (")] = '\0';
 526                         edge->name = search_name_hashtable(field2);
 527
 528                         if ( or_edge )
 529                                 or_edge->version++;
 530
 531                         add_edge_to_node(parent_node, edge);
 532                 } while ((field2 = strtok_r(NULL, "|", &line_ptr2)) != NULL);
 533                 free(line2);
 534         } while ((field = strtok_r(NULL, ",", &line_ptr1)) != NULL);
 535         free(line);
 536
 537         return;
 538 }
 539
 540 static void free_package(common_node_t *node)
 541 {
 542         unsigned short i;
 543         if (node) {
 544                 for (i = 0; i < node->num_of_edges; i++) {
 545                         free(node->edge[i]);
 546                 }
 547                 free(node->edge);
 548                 free(node);
 549         }
 550 }
 551
 552 static unsigned int fill_package_struct(char *control_buffer)
 553 {
 554         static const char *const field_names[] = { "Package", "Version",
 555                 "Pre-Depends", "Depends","Replaces", "Provides",
 556                 "Conflicts", "Suggests", "Recommends", "Enhances", 0
 557         };
 558
 559         common_node_t *new_node = (common_node_t *) xcalloc(1, sizeof(common_node_t));
 560         char *field_name;
 561         char *field_value;
 562         int field_start = 0;
 563         int num = -1;
 564         int buffer_length = strlen(control_buffer);
 565
 566         new_node->version = search_name_hashtable("unknown");
 567         while (field_start < buffer_length) {
 568                 unsigned short field_num;
 569
 570                 field_start += read_package_field(&control_buffer[field_start],
 571                                 &field_name, &field_value);
 572
 573                 if (field_name == NULL) {
 574                         goto fill_package_struct_cleanup; /* Oh no, the dreaded goto statement ! */
 575                 }
 576
 577                 field_num = compare_string_array(field_names, field_name);
 578                 switch(field_num) {
 579                         case 0: /* Package */
 580                                 new_node->name = search_name_hashtable(field_value);
 581                                 break;
 582                         case 1: /* Version */
 583                                 new_node->version = search_name_hashtable(field_value);
 584                                 break;
 585                         case 2: /* Pre-Depends */
 586                                 add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
 587                                 break;
 588                         case 3: /* Depends */
 589                                 add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
 590                                 break;
 591                         case 4: /* Replaces */
 592                                 add_split_dependencies(new_node, field_value, EDGE_REPLACES);
 593                                 break;
 594                         case 5: /* Provides */
 595                                 add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
 596                                 break;
 597                         case 6: /* Conflicts */
 598                                 add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
 599                                 break;
 600                         case 7: /* Suggests */
 601                                 add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
 602                                 break;
 603                         case 8: /* Recommends */
 604                                 add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
 605                                 break;
 606                         case 9: /* Enhances */
 607                                 add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
 608                                 break;
 609                 }
 610 fill_package_struct_cleanup:
 611                 free(field_name);
 612                 free(field_value);
 613         }
 614
 615         if (new_node->version == search_name_hashtable("unknown")) {
 616                 free_package(new_node);
 617                 return(-1);
 618         }
 619         num = search_package_hashtable(new_node->name, new_node->version, VER_EQUAL);
 620         if (package_hashtable[num] == NULL) {
 621                 package_hashtable[num] = new_node;
 622         } else {
 623                 free_package(new_node);
 624         }
 625         return(num);
 626 }
 627
 628 /* if num = 1, it returns the want status, 2 returns flag, 3 returns status */
 629 static unsigned int get_status(const unsigned int status_node, const int num)
 630 {
 631         char *status_string = name_hashtable[status_hashtable[status_node]->status];
 632         char *state_sub_string;
 633         unsigned int state_sub_num;
 634         int len;
 635         int i;
 636
 637         /* set tmp_string to point to the start of the word number */
 638         for (i = 1; i < num; i++) {
 639                 /* skip past a word */
 640                 status_string += strcspn(status_string, " ");
 641                 /* skip past the separating spaces */
 642                 status_string += strspn(status_string, " ");
 643         }
 644         len = strcspn(status_string, " \n\0");
 645         state_sub_string = bb_xstrndup(status_string, len);
 646         state_sub_num = search_name_hashtable(state_sub_string);
 647         free(state_sub_string);
 648         return(state_sub_num);
 649 }
 650
 651 static void set_status(const unsigned int status_node_num, const char *new_value, const int position)
 652 {
 653         const unsigned int new_value_len = strlen(new_value);
 654         const unsigned int new_value_num = search_name_hashtable(new_value);
 655         unsigned int want = get_status(status_node_num, 1);
 656         unsigned int flag = get_status(status_node_num, 2);
 657         unsigned int status = get_status(status_node_num, 3);
 658         int want_len = strlen(name_hashtable[want]);
 659         int flag_len = strlen(name_hashtable[flag]);
 660         int status_len = strlen(name_hashtable[status]);
 661         char *new_status;
 662
 663         switch (position) {
 664                 case (1):
 665                         want = new_value_num;
 666                         want_len = new_value_len;
 667                         break;
 668                 case (2):
 669                         flag = new_value_num;
 670                         flag_len = new_value_len;
 671                         break;
 672                 case (3):
 673                         status = new_value_num;
 674                         status_len = new_value_len;
 675                         break;
 676                 default:
 677                         bb_error_msg_and_die("DEBUG ONLY: this shouldnt happen");
 678         }
 679
 680         new_status = (char *) xmalloc(want_len + flag_len + status_len + 3);
 681         sprintf(new_status, "%s %s %s", name_hashtable[want], name_hashtable[flag], name_hashtable[status]);
 682         status_hashtable[status_node_num]->status = search_name_hashtable(new_status);
 683         free(new_status);
 684         return;
 685 }
 686
 687 static const char *describe_status(int status_num) {
 688         int status_want, status_state ;
 689         if ( status_hashtable[status_num] == NULL || status_hashtable[status_num]->status == 0 )
 690                 return "is not installed or flagged to be installed\n";
 691
 692         status_want = get_status(status_num, 1);
 693         status_state = get_status(status_num, 3);
 694
 695         if ( status_state == search_name_hashtable("installed") ) {
 696                 if ( status_want == search_name_hashtable("install") )
 697                         return "is installed";
 698                 if ( status_want == search_name_hashtable("deinstall") )
 699                         return "is marked to be removed";
 700                 if ( status_want == search_name_hashtable("purge") )
 701                         return "is marked to be purged";
 702         }
 703         if ( status_want ==  search_name_hashtable("unknown") )
 704                 return "is in an indeterminate state";
 705         if ( status_want == search_name_hashtable("install") )
 706                 return "is marked to be installed";
 707
 708         return "is not installed or flagged to be installed";
 709 }
 710
 711
 712 static void index_status_file(const char *filename)
 713 {
 714         FILE *status_file;
 715         char *control_buffer;
 716         char *status_line;
 717         status_node_t *status_node = NULL;
 718         unsigned int status_num;
 719
 720         status_file = bb_xfopen(filename, "r");
 721         while ((control_buffer = fgets_str(status_file, "\n\n")) != NULL) {
 722                 const unsigned int package_num = fill_package_struct(control_buffer);
 723                 if (package_num != -1) {
 724                         status_node = xmalloc(sizeof(status_node_t));
 725                         /* fill_package_struct doesnt handle the status field */
 726                         status_line = strstr(control_buffer, "Status:");
 727                         if (status_line != NULL) {
 728                                 status_line += 7;
 729                                 status_line += strspn(status_line, " \n\t");
 730                                 status_line = bb_xstrndup(status_line, strcspn(status_line, "\n\0"));
 731                                 status_node->status = search_name_hashtable(status_line);
 732                                 free(status_line);
 733                         }
 734                         status_node->package = package_num;
 735                         status_num = search_status_hashtable(name_hashtable[package_hashtable[status_node->package]->name]);
 736                         status_hashtable[status_num] = status_node;
 737                 }
 738                 free(control_buffer);
 739         }
 740         fclose(status_file);
 741         return;
 742 }
 743
 744 #if 0 /* this code is no longer used */
 745 char *get_depends_field(common_node_t *package, const int depends_type)
 746 {
 747         char *depends = NULL;
 748         char *old_sep = (char *)xcalloc(1, 3);
 749         char *new_sep = (char *)xcalloc(1, 3);
 750         int line_size = 0;
 751         int depends_size;
 752
 753         int i;
 754
 755         for (i = 0; i < package->num_of_edges; i++) {
 756                 if ((package->edge[i]->type == EDGE_OR_PRE_DEPENDS) ||
 757                         (package->edge[i]->type == EDGE_OR_DEPENDS)) {
 758                 }
 759
 760                 if ((package->edge[i]->type == depends_type) ||
 761                         (package->edge[i]->type == depends_type + 1)) {
 762                         /* Check if its the first time through */
 763
 764                         depends_size = 8 + strlen(name_hashtable[package->edge[i]->name])
 765                                 + strlen(name_hashtable[package->edge[i]->version]);
 766                         line_size += depends_size;
 767                         depends = (char *) xrealloc(depends, line_size + 1);
 768
 769                         /* Check to see if this dependency is the type we are looking for
 770                          * +1 to check for 'extra' types, e.g. ored dependecies */
 771                         strcpy(old_sep, new_sep);
 772                         if (package->edge[i]->type == depends_type) {
 773                                 strcpy(new_sep, ", ");
 774                         }
 775                         else if (package->edge[i]->type == depends_type + 1) {
 776                                 strcpy(new_sep, "| ");
 777                         }
 778
 779                         if (depends_size == line_size) {
 780                                 strcpy(depends, "");
 781                         } else {
 782                                 if ((strcmp(old_sep, "| ") == 0) && (strcmp(new_sep, "| ") == 0)) {
 783                                         strcat(depends, " | ");
 784                                 } else {
 785                                         strcat(depends, ", ");
 786                                 }
 787                         }
 788
 789                         strcat(depends, name_hashtable[package->edge[i]->name]);
 790                         if (strcmp(name_hashtable[package->edge[i]->version], "NULL") != 0) {
 791                                 if (package->edge[i]->operator == VER_EQUAL) {
 792                                         strcat(depends, " (= ");
 793                                 }
 794                                 else if (package->edge[i]->operator == VER_LESS) {
 795                                         strcat(depends, " (<< ");
 796                                 }
 797                                 else if (package->edge[i]->operator == VER_LESS_EQUAL) {
 798                                         strcat(depends, " (<= ");
 799                                 }
 800                                 else if (package->edge[i]->operator == VER_MORE) {
 801                                         strcat(depends, " (>> ");
 802                                 }
 803                                 else if (package->edge[i]->operator == VER_MORE_EQUAL) {
 804                                         strcat(depends, " (>= ");
 805                                 } else {
 806                                         strcat(depends, " (");
 807                                 }
 808                                 strcat(depends, name_hashtable[package->edge[i]->version]);
 809                                 strcat(depends, ")");
 810                         }
 811                 }
 812         }
 813         return(depends);
 814 }
 815 #endif
 816
 817 static void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
 818 {
 819         char *name;
 820         char *value;
 821         int start = 0;
 822         while (1) {
 823                 start += read_package_field(&control_buffer[start], &name, &value);
 824                 if (name == NULL) {
 825                         break;
 826                 }
 827                 if (strcmp(name, "Status") != 0) {
 828                         fprintf(new_status_file, "%s: %s\n", name, value);
 829                 }
 830         }
 831         return;
 832 }
 833
 834 /* This could do with a cleanup */
 835 static void write_status_file(deb_file_t **deb_file)
 836 {
 837         FILE *old_status_file = bb_xfopen("/var/lib/dpkg/status", "r");
 838         FILE *new_status_file = bb_xfopen("/var/lib/dpkg/status.udeb", "w");
 839         char *package_name;
 840         char *status_from_file;
 841         char *control_buffer = NULL;
 842         char *tmp_string;
 843         int status_num;
 844         int field_start = 0;
 845         int write_flag;
 846         int i = 0;
 847
 848         /* Update previously known packages */
 849         while ((control_buffer = fgets_str(old_status_file, "\n\n")) != NULL) {
 850                 if ((tmp_string = strstr(control_buffer, "Package:")) == NULL) {
 851                         continue;
 852                 }
 853
 854                 tmp_string += 8;
 855                 tmp_string += strspn(tmp_string, " \n\t");
 856                 package_name = bb_xstrndup(tmp_string, strcspn(tmp_string, "\n\0"));
 857                 write_flag = FALSE;
 858                 tmp_string = strstr(control_buffer, "Status:");
 859                 if (tmp_string != NULL) {
 860                         /* Seperate the status value from the control buffer */
 861                         tmp_string += 7;
 862                         tmp_string += strspn(tmp_string, " \n\t");
 863                         status_from_file = bb_xstrndup(tmp_string, strcspn(tmp_string, "\n"));
 864                 } else {
 865                         status_from_file = NULL;
 866                 }
 867
 868                 /* Find this package in the status hashtable */
 869                 status_num = search_status_hashtable(package_name);
 870                 if (status_hashtable[status_num] != NULL) {
 871                         const char *status_from_hashtable = name_hashtable[status_hashtable[status_num]->status];
 872                         if (strcmp(status_from_file, status_from_hashtable) != 0) {
 873                                 /* New status isnt exactly the same as old status */
 874                                 const int state_status = get_status(status_num, 3);
 875                                 if ((strcmp("installed", name_hashtable[state_status]) == 0) ||
 876                                         (strcmp("unpacked", name_hashtable[state_status]) == 0)) {
 877                                         /* We need to add the control file from the package */
 878                                         i = 0;
 879                                         while(deb_file[i] != NULL) {
 880                                                 if (strcmp(package_name, name_hashtable[package_hashtable[deb_file[i]->package]->name]) == 0) {
 881                                                         /* Write a status file entry with a modified status */
 882                                                         /* remove trailing \n's */
 883                                                         write_buffer_no_status(new_status_file, deb_file[i]->control_file);
 884                                                         set_status(status_num, "ok", 2);
 885                                                         fprintf(new_status_file, "Status: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
 886                                                         write_flag = TRUE;
 887                                                         break;
 888                                                 }
 889                                                 i++;
 890                                         }
 891                                         /* This is temperary, debugging only */
 892                                         if (deb_file[i] == NULL) {
 893                                                 bb_error_msg_and_die("ALERT: Couldnt find a control file, your status file may be broken, status may be incorrect for %s", package_name);
 894                                         }
 895                                 }
 896                                 else if (strcmp("not-installed", name_hashtable[state_status]) == 0) {
 897                                         /* Only write the Package, Status, Priority and Section lines */
 898                                         fprintf(new_status_file, "Package: %s\n", package_name);
 899                                         fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
 900
 901                                         while (1) {
 902                                                 char *field_name;
 903                                                 char *field_value;
 904                                                 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
 905                                                 if (field_name == NULL) {
 906                                                         break;
 907                                                 }
 908                                                 if ((strcmp(field_name, "Priority") == 0) ||
 909                                                         (strcmp(field_name, "Section") == 0)) {
 910                                                         fprintf(new_status_file, "%s: %s\n", field_name, field_value);
 911                                                 }
 912                                         }
 913                                         write_flag = TRUE;
 914                                         fputs("\n", new_status_file);
 915                                 }
 916                                 else if (strcmp("config-files", name_hashtable[state_status]) == 0) {
 917                                         /* only change the status line */
 918                                         while (1) {
 919                                                 char *field_name;
 920                                                 char *field_value;
 921                                                 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
 922                                                 if (field_name == NULL) {
 923                                                         break;
 924                                                 }
 925                                                 /* Setup start point for next field */
 926                                                 if (strcmp(field_name, "Status") == 0) {
 927                                                         fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
 928                                                 } else {
 929                                                         fprintf(new_status_file, "%s: %s\n", field_name, field_value);
 930                                                 }
 931                                         }
 932                                         write_flag = TRUE;
 933                                         fputs("\n", new_status_file);
 934                                 }
 935                         }
 936                 }
 937                 /* If the package from the status file wasnt handle above, do it now*/
 938                 if (! write_flag) {
 939                         fprintf(new_status_file, "%s\n\n", control_buffer);
 940                 }
 941
 942                 free(status_from_file);
 943                 free(package_name);
 944                 free(control_buffer);
 945         }
 946
 947         /* Write any new packages */
 948         for(i = 0; deb_file[i] != NULL; i++) {
 949                 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[i]->package]->name]);
 950                 if (strcmp("reinstreq", name_hashtable[get_status(status_num, 2)]) == 0) {
 951                         write_buffer_no_status(new_status_file, deb_file[i]->control_file);
 952                         set_status(status_num, "ok", 2);
 953                         fprintf(new_status_file, "Status: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
 954                 }
 955         }
 956         fclose(old_status_file);
 957         fclose(new_status_file);
 958
 959
 960         /* Create a separate backfile to dpkg */
 961         if (rename("/var/lib/dpkg/status", "/var/lib/dpkg/status.udeb.bak") == -1) {
 962                 struct stat stat_buf;
 963                 if (stat("/var/lib/dpkg/status", &stat_buf) == 0) {
 964                         bb_error_msg_and_die("Couldnt create backup status file");
 965                 }
 966                 /* Its ok if renaming the status file fails because status
 967                  * file doesnt exist, maybe we are starting from scratch */
 968                 bb_error_msg("No status file found, creating new one");
 969         }
 970
 971         if (rename("/var/lib/dpkg/status.udeb", "/var/lib/dpkg/status") == -1) {
 972                 bb_error_msg_and_die("DANGER: Couldnt create status file, you need to manually repair your status file");
 973         }
 974 }
 975
 976 /* This function returns TRUE if the given package can satisfy a
 977  * dependency of type depend_type.
 978  *
 979  * A pre-depends is satisfied only if a package is already installed,
 980  * which a regular depends can be satisfied by a package which we want
 981  * to install.
 982  */
 983 static int package_satisfies_dependency(int package, int depend_type)
 984 {
 985         int status_num = search_status_hashtable(name_hashtable[package_hashtable[package]->name]);
 986
 987         /* status could be unknown if package is a pure virtual
 988          * provides which cannot satisfy any dependency by itself.
 989          */
 990         if ( status_hashtable[status_num] == NULL )
 991                 return 0;
 992
 993         switch (depend_type) {
 994         case EDGE_PRE_DEPENDS:  return get_status(status_num, 3) == search_name_hashtable("installed");
 995         case EDGE_DEPENDS:      return get_status(status_num, 1) == search_name_hashtable("install");
 996         }
 997         return 0;
 998 }
 999
1000 static int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
1001 {
1002         int *conflicts = NULL;
1003         int conflicts_num = 0;
1004         int i = deb_start;
1005         int j;
1006
1007         /* Check for conflicts
1008          * TODO: TEST if conflicts with other packages to be installed
1009          *
1010          * Add install packages and the packages they provide
1011          * to the list of files to check conflicts for
1012          */
1013
1014         /* Create array of package numbers to check against
1015          * installed package for conflicts*/
1016         while (deb_file[i] != NULL) {
1017                 const unsigned int package_num = deb_file[i]->package;
1018                 conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
1019                 conflicts[conflicts_num] = package_num;
1020                 conflicts_num++;
1021                 /* add provides to conflicts list */
1022                 for (j = 0; j < package_hashtable[package_num]->num_of_edges; j++) {
1023                         if (package_hashtable[package_num]->edge[j]->type == EDGE_PROVIDES) {
1024                                 const int conflicts_package_num = search_package_hashtable(
1025                                         package_hashtable[package_num]->edge[j]->name,
1026                                         package_hashtable[package_num]->edge[j]->version,
1027                                         package_hashtable[package_num]->edge[j]->operator);
1028                                 if (package_hashtable[conflicts_package_num] == NULL) {
1029                                         /* create a new package */
1030                                         common_node_t *new_node = (common_node_t *) xmalloc(sizeof(common_node_t));
1031                                         new_node->name = package_hashtable[package_num]->edge[j]->name;
1032                                         new_node->version = package_hashtable[package_num]->edge[j]->version;
1033                                         new_node->num_of_edges = 0;
1034                                         new_node->edge = NULL;
1035                                         package_hashtable[conflicts_package_num] = new_node;
1036                                 }
1037                                 conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
1038                                 conflicts[conflicts_num] = conflicts_package_num;
1039                                 conflicts_num++;
1040                         }
1041                 }
1042                 i++;
1043         }
1044
1045         /* Check conflicts */
1046         i = 0;
1047         while (deb_file[i] != NULL) {
1048                 const common_node_t *package_node = package_hashtable[deb_file[i]->package];
1049                 int status_num = 0;
1050                 status_num = search_status_hashtable(name_hashtable[package_node->name]);
1051
1052                 if (get_status(status_num, 3) == search_name_hashtable("installed")) {
1053                         i++;
1054                         continue;
1055                 }
1056
1057                 for (j = 0; j < package_node->num_of_edges; j++) {
1058                         const edge_t *package_edge = package_node->edge[j];
1059
1060                         if (package_edge->type == EDGE_CONFLICTS) {
1061                                 const unsigned int package_num =
1062                                         search_package_hashtable(package_edge->name,
1063                                                                  package_edge->version,
1064                                                                  package_edge->operator);
1065                                 int result = 0;
1066                                 if (package_hashtable[package_num] != NULL) {
1067                                         status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
1068
1069                                         if (get_status(status_num, 1) == search_name_hashtable("install")) {
1070                                                 result = test_version(package_hashtable[deb_file[i]->package]->version,
1071                                                         package_edge->version, package_edge->operator);
1072                                         }
1073                                 }
1074
1075                                 if (result) {
1076                                         bb_error_msg_and_die("Package %s conflicts with %s",
1077                                                 name_hashtable[package_node->name],
1078                                                 name_hashtable[package_edge->name]);
1079                                 }
1080                         }
1081                 }
1082                 i++;
1083         }
1084
1085
1086         /* Check dependendcies */
1087         for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
1088                 int status_num = 0;
1089                 int number_of_alternatives = 0;
1090                 const edge_t * root_of_alternatives = NULL;
1091                 const common_node_t *package_node = package_hashtable[i];
1092
1093                 /* If the package node does not exist then this
1094                  * package is a virtual one. In which case there are
1095                  * no dependencies to check.
1096                  */
1097                 if ( package_node == NULL ) continue;
1098
1099                 status_num = search_status_hashtable(name_hashtable[package_node->name]);
1100
1101                 /* If there is no status then this package is a
1102                  * virtual one provided by something else. In which
1103                  * case there are no dependencies to check.
1104                  */
1105                 if ( status_hashtable[status_num] == NULL ) continue;
1106
1107                 /* If we don't want this package installed then we may
1108                  * as well ignore it's dependencies.
1109                  */
1110                 if (get_status(status_num, 1) != search_name_hashtable("install")) {
1111                         continue;
1112                 }
1113
1114 #if 0
1115                 /* This might be needed so we don't complain about
1116                  * things which are broken but unrelated to the
1117                  * packages that are currently being installed
1118                  */
1119                 if (state_status == search_name_hashtable("installed"))
1120                         continue;
1121 #endif
1122
1123                 /* This code is tested only for EDGE_DEPENDS, since I
1124                  * have no suitable pre-depends available. There is no
1125                  * reason that it shouldn't work though :-)
1126                  */
1127                 for (j = 0; j < package_node->num_of_edges; j++) {
1128                         const edge_t *package_edge = package_node->edge[j];
1129                         unsigned int package_num;
1130
1131                         if ( package_edge->type == EDGE_OR_PRE_DEPENDS ||
1132                              package_edge->type == EDGE_OR_DEPENDS ) {  /* start an EDGE_OR_ list */
1133                                 number_of_alternatives = package_edge->version;
1134                                 root_of_alternatives = package_edge;
1135                                 continue;
1136                         } else if ( number_of_alternatives == 0 ) {     /* not in the middle of an EDGE_OR_ list */
1137                                 number_of_alternatives = 1;
1138                                 root_of_alternatives = NULL;
1139                         }
1140
1141                         package_num = search_package_hashtable(package_edge->name, package_edge->version, package_edge->operator);
1142
1143                         if (package_edge->type == EDGE_PRE_DEPENDS ||
1144                             package_edge->type == EDGE_DEPENDS ) {
1145                                 int result=1;
1146                                 status_num = 0;
1147
1148                                 /* If we are inside an alternative then check
1149                                  * this edge is the right type.
1150                                  *
1151                                  * EDGE_DEPENDS == OR_DEPENDS -1
1152                                  * EDGE_PRE_DEPENDS == OR_PRE_DEPENDS -1
1153                                  */
1154                                 if ( root_of_alternatives && package_edge->type != root_of_alternatives->type - 1)
1155                                         bb_error_msg_and_die("Fatal error. Package dependencies corrupt: %d != %d - 1 \n",
1156                                                              package_edge->type, root_of_alternatives->type);
1157
1158                                 if (package_hashtable[package_num] != NULL)
1159                                         result = !package_satisfies_dependency(package_num, package_edge->type);
1160
1161                                 if (result) { /* check for other package which provide what we are looking for */
1162                                         int provider = -1;
1163
1164                                         while ( (provider = search_for_provides(package_edge->name, provider) ) > -1 ) {
1165                                                 if ( package_hashtable[provider] == NULL ) {
1166                                                         printf("Have a provider but no package information for it\n");
1167                                                         continue;
1168                                                 }
1169                                                 result = !package_satisfies_dependency(provider, package_edge->type);
1170
1171                                                 if ( result == 0 )
1172                                                         break;
1173                                         }
1174                                 }
1175
1176                                 /* It must be already installed, or to be installed */
1177                                 number_of_alternatives--;
1178                                 if (result && number_of_alternatives == 0) {
1179                                         if ( root_of_alternatives )
1180                                                 bb_error_msg_and_die(
1181                                                         "Package %s %sdepends on %s, "
1182                                                         "which cannot be satisfied",
1183                                                         name_hashtable[package_node->name],
1184                                                         package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1185                                                         name_hashtable[root_of_alternatives->name]);
1186                                         else
1187                                                 bb_error_msg_and_die(
1188                                                         "Package %s %sdepends on %s, which %s\n",
1189                                                         name_hashtable[package_node->name],
1190                                                         package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1191                                                         name_hashtable[package_edge->name],
1192                                                         describe_status(status_num));
1193                                 } else if ( result == 0 && number_of_alternatives ) {
1194                                         /* we've found a package which
1195                                          * satisfies the dependency,
1196                                          * so skip over the rest of
1197                                          * the alternatives.
1198                                          */
1199                                         j += number_of_alternatives;
1200                                         number_of_alternatives = 0;
1201                                 }
1202                         }
1203                 }
1204         }
1205         free(conflicts);
1206         return(TRUE);
1207 }
1208
1209 static char **create_list(const char *filename)
1210 {
1211         FILE *list_stream;
1212         char **file_list = NULL;
1213         char *line = NULL;
1214         int count = 0;
1215
1216         /* don't use [xw]fopen here, handle error ourself */
1217         list_stream = fopen(filename, "r");
1218         if (list_stream == NULL) {
1219                 return(NULL);
1220         }
1221
1222         while ((line = bb_get_chomped_line_from_file(list_stream)) != NULL) {
1223                 file_list = xrealloc(file_list, sizeof(char *) * (count + 2));
1224                 file_list[count] = line;
1225                 count++;
1226         }
1227         fclose(list_stream);
1228
1229         if (count == 0) {
1230                 return(NULL);
1231         } else {
1232                 file_list[count] = NULL;
1233                 return(file_list);
1234         }
1235 }
1236
1237 /* maybe i should try and hook this into remove_file.c somehow */
1238 static int remove_file_array(char **remove_names, char **exclude_names)
1239 {
1240         struct stat path_stat;
1241         int match_flag;
1242         int remove_flag = FALSE;
1243         int i,j;
1244
1245         if (remove_names == NULL) {
1246                 return(FALSE);
1247         }
1248         for (i = 0; remove_names[i] != NULL; i++) {
1249                 match_flag = FALSE;
1250                 if (exclude_names != NULL) {
1251                         for (j = 0; exclude_names[j] != 0; j++) {
1252                                 if (strcmp(remove_names[i], exclude_names[j]) == 0) {
1253                                         match_flag = TRUE;
1254                                         break;
1255                                 }
1256                         }
1257                 }
1258                 if (!match_flag) {
1259                         if (lstat(remove_names[i], &path_stat) < 0) {
1260                                 continue;
1261                         }
1262                         if (S_ISDIR(path_stat.st_mode)) {
1263                                 if (rmdir(remove_names[i]) != -1) {
1264                                         remove_flag = TRUE;
1265                                 }
1266                         } else {
1267                                 if (unlink(remove_names[i]) != -1) {
1268                                         remove_flag = TRUE;
1269                                 }
1270                         }
1271                 }
1272         }
1273         return(remove_flag);
1274 }
1275
1276 static int run_package_script(const char *package_name, const char *script_type)
1277 {
1278         struct stat path_stat;
1279         char *script_path;
1280         int result;
1281
1282         script_path = xmalloc(strlen(package_name) + strlen(script_type) + 21);
1283         sprintf(script_path, "/var/lib/dpkg/info/%s.%s", package_name, script_type);
1284
1285         /* If the file doesnt exist is isnt a fatal */
1286         if (lstat(script_path, &path_stat) < 0) {
1287                 result = EXIT_SUCCESS;
1288         } else {
1289                 result = system(script_path);
1290         }
1291         free(script_path);
1292         return(result);
1293 }
1294
1295 static const char *all_control_files[] = {"preinst", "postinst", "prerm", "postrm",
1296         "list", "md5sums", "shlibs", "conffiles", "config", "templates", NULL };
1297
1298 static char **all_control_list(const char *package_name)
1299 {
1300         unsigned short i = 0;
1301         char **remove_files;
1302
1303         /* Create a list of all /var/lib/dpkg/info/<package> files */
1304         remove_files = xmalloc(sizeof(all_control_files));
1305         while (all_control_files[i]) {
1306                 remove_files[i] = xmalloc(strlen(package_name) + strlen(all_control_files[i]) + 21);
1307                 sprintf(remove_files[i], "/var/lib/dpkg/info/%s.%s", package_name, all_control_files[i]);
1308                 i++;
1309         }
1310         remove_files[sizeof(all_control_files)/sizeof(char*) - 1] = NULL;
1311
1312         return(remove_files);
1313 }
1314
1315 static void free_array(char **array)
1316 {
1317
1318         if (array) {
1319                 unsigned short i = 0;
1320                 while (array[i]) {
1321                         free(array[i]);
1322                         i++;
1323                 }
1324                 free(array);
1325         }
1326 }
1327
1328 /* This function lists information on the installed packages. It loops through
1329  * the status_hashtable to retrieve the info. This results in smaller code than
1330  * scanning the status file. The resulting list, however, is unsorted.
1331  */
1332 static void list_packages(void)
1333 {
1334         int i;
1335
1336         printf("    Name           Version\n");
1337         printf("+++-==============-==============\n");
1338
1339         /* go through status hash, dereference package hash and finally strings */
1340         for (i=0; i<STATUS_HASH_PRIME+1; i++) {
1341
1342                 if (status_hashtable[i]) {
1343                         const char *stat_str;  /* status string */
1344                         const char *name_str;  /* package name */
1345                         const char *vers_str;  /* version */
1346                         char  s1, s2;          /* status abbreviations */
1347                         int   spccnt;          /* space count */
1348                         int   j;
1349
1350                         stat_str = name_hashtable[status_hashtable[i]->status];
1351                         name_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->name];
1352                         vers_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->version];
1353
1354                         /* get abbreviation for status field 1 */
1355                         s1 = stat_str[0] == 'i' ? 'i' : 'r';
1356
1357                         /* get abbreviation for status field 2 */
1358                         for (j=0, spccnt=0; stat_str[j] && spccnt<2; j++) {
1359                                 if (stat_str[j] == ' ') spccnt++;
1360                         }
1361                         s2 = stat_str[j];
1362
1363                         /* print out the line formatted like Debian dpkg */
1364                         printf("%c%c  %-14s %s\n", s1, s2, name_str, vers_str);
1365                 }
1366     }
1367 }
1368
1369 static void remove_package(const unsigned int package_num, int noisy)
1370 {
1371         const char *package_name = name_hashtable[package_hashtable[package_num]->name];
1372         const char *package_version = name_hashtable[package_hashtable[package_num]->version];
1373         const unsigned int status_num = search_status_hashtable(package_name);
1374         const int package_name_length = strlen(package_name);
1375         char **remove_files;
1376         char **exclude_files;
1377         char list_name[package_name_length + 25];
1378         char conffile_name[package_name_length + 30];
1379         int return_value;
1380
1381         if ( noisy )
1382                 printf("Removing %s (%s) ...\n", package_name, package_version);
1383
1384         /* run prerm script */
1385         return_value = run_package_script(package_name, "prerm");
1386         if (return_value == -1) {
1387                 bb_error_msg_and_die("script failed, prerm failure");
1388         }
1389
1390         /* Create a list of files to remove, and a separate list of those to keep */
1391         sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
1392         remove_files = create_list(list_name);
1393
1394         sprintf(conffile_name, "/var/lib/dpkg/info/%s.conffiles", package_name);
1395         exclude_files = create_list(conffile_name);
1396
1397         /* Some directories cant be removed straight away, so do multiple passes */
1398         while (remove_file_array(remove_files, exclude_files));
1399         free_array(exclude_files);
1400         free_array(remove_files);
1401
1402         /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep  */
1403         exclude_files = xmalloc(sizeof(char*) * 3);
1404         exclude_files[0] = bb_xstrdup(conffile_name);
1405         exclude_files[1] = xmalloc(package_name_length + 27);
1406         sprintf(exclude_files[1], "/var/lib/dpkg/info/%s.postrm", package_name);
1407         exclude_files[2] = NULL;
1408
1409         /* Create a list of all /var/lib/dpkg/info/<package> files */
1410         remove_files = all_control_list(package_name);
1411
1412         remove_file_array(remove_files, exclude_files);
1413         free_array(remove_files);
1414         free_array(exclude_files);
1415
1416         /* rename <package>.conffile to <package>.list */
1417         rename(conffile_name, list_name);
1418
1419         /* Change package status */
1420         set_status(status_num, "config-files", 3);
1421 }
1422
1423 static void purge_package(const unsigned int package_num)
1424 {
1425         const char *package_name = name_hashtable[package_hashtable[package_num]->name];
1426         const char *package_version = name_hashtable[package_hashtable[package_num]->version];
1427         const unsigned int status_num = search_status_hashtable(package_name);
1428         char **remove_files;
1429         char **exclude_files;
1430         char list_name[strlen(package_name) + 25];
1431
1432         printf("Purging %s (%s) ...\n", package_name, package_version);
1433
1434         /* run prerm script */
1435         if (run_package_script(package_name, "prerm") != 0) {
1436                 bb_error_msg_and_die("script failed, prerm failure");
1437         }
1438
1439         /* Create a list of files to remove */
1440         sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
1441         remove_files = create_list(list_name);
1442
1443         exclude_files = xmalloc(sizeof(char*));
1444         exclude_files[0] = NULL;
1445
1446         /* Some directories cant be removed straight away, so do multiple passes */
1447         while (remove_file_array(remove_files, exclude_files));
1448         free_array(remove_files);
1449
1450         /* Create a list of all /var/lib/dpkg/info/<package> files */
1451         remove_files = all_control_list(package_name);
1452         remove_file_array(remove_files, exclude_files);
1453         free_array(remove_files);
1454         free(exclude_files);
1455
1456         /* run postrm script */
1457         if (run_package_script(package_name, "postrm") == -1) {
1458                 bb_error_msg_and_die("postrm fialure.. set status to what?");
1459         }
1460
1461         /* Change package status */
1462         set_status(status_num, "not-installed", 3);
1463 }
1464
1465 static archive_handle_t *init_archive_deb_ar(const char *filename)
1466 {
1467         archive_handle_t *ar_handle;
1468
1469         /* Setup an ar archive handle that refers to the gzip sub archive */
1470         ar_handle = init_handle();
1471         ar_handle->filter = filter_accept_list_reassign;
1472         ar_handle->src_fd = bb_xopen(filename, O_RDONLY);
1473
1474         return(ar_handle);
1475 }
1476
1477 static void init_archive_deb_control(archive_handle_t *ar_handle)
1478 {
1479         archive_handle_t *tar_handle;
1480
1481         /* Setup the tar archive handle */
1482         tar_handle = init_handle();
1483         tar_handle->src_fd = ar_handle->src_fd;
1484
1485         /* We don't care about data.tar.* or debian-binary, just control.tar.* */
1486 #ifdef CONFIG_FEATURE_DEB_TAR_GZ
1487         ar_handle->accept = llist_add_to(NULL, "control.tar.gz");
1488 #endif
1489 #ifdef CONFIG_FEATURE_DEB_TAR_BZ2
1490         ar_handle->accept = llist_add_to(ar_handle->accept, "control.tar.bz2");
1491 #endif
1492
1493         /* Assign the tar handle as a subarchive of the ar handle */
1494         ar_handle->sub_archive = tar_handle;
1495
1496         return;
1497 }
1498
1499 static void init_archive_deb_data(archive_handle_t *ar_handle)
1500 {
1501         archive_handle_t *tar_handle;
1502
1503         /* Setup the tar archive handle */
1504         tar_handle = init_handle();
1505         tar_handle->src_fd = ar_handle->src_fd;
1506
1507         /* We don't care about control.tar.* or debian-binary, just data.tar.* */
1508 #ifdef CONFIG_FEATURE_DEB_TAR_GZ
1509         ar_handle->accept = llist_add_to(NULL, "data.tar.gz");
1510 #endif
1511 #ifdef CONFIG_FEATURE_DEB_TAR_BZ2
1512         ar_handle->accept = llist_add_to(ar_handle->accept, "data.tar.bz2");
1513 #endif
1514
1515         /* Assign the tar handle as a subarchive of the ar handle */
1516         ar_handle->sub_archive = tar_handle;
1517
1518         return;
1519 }
1520
1521 static char *deb_extract_control_file_to_buffer(archive_handle_t *ar_handle, llist_t *myaccept)
1522 {
1523         ar_handle->sub_archive->action_data = data_extract_to_buffer;
1524         ar_handle->sub_archive->accept = myaccept;
1525         ar_handle->sub_archive->filter = filter_accept_list;
1526
1527         unpack_ar_archive(ar_handle);
1528         close(ar_handle->src_fd);
1529
1530         return(ar_handle->sub_archive->buffer);
1531 }
1532
1533 static void data_extract_all_prefix(archive_handle_t *archive_handle)
1534 {
1535         char *name_ptr = archive_handle->file_header->name;
1536
1537         name_ptr += strspn(name_ptr, "./");
1538         if (name_ptr[0] != '\0') {
1539                 archive_handle->file_header->name = xmalloc(strlen(archive_handle->buffer) + 2 + strlen(name_ptr));
1540                 strcpy(archive_handle->file_header->name, archive_handle->buffer);
1541                 strcat(archive_handle->file_header->name, name_ptr);
1542                 data_extract_all(archive_handle);
1543         }
1544         return;
1545 }
1546
1547 static void unpack_package(deb_file_t *deb_file)
1548 {
1549         const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
1550         const unsigned int status_num = search_status_hashtable(package_name);
1551         const unsigned int status_package_num = status_hashtable[status_num]->package;
1552         char *info_prefix;
1553         archive_handle_t *archive_handle;
1554         FILE *out_stream;
1555         llist_t *accept_list = NULL;
1556         int i = 0;
1557
1558         /* If existing version, remove it first */
1559         if (strcmp(name_hashtable[get_status(status_num, 3)], "installed") == 0) {
1560                 /* Package is already installed, remove old version first */
1561                 printf("Preparing to replace %s %s (using %s) ...\n", package_name,
1562                         name_hashtable[package_hashtable[status_package_num]->version],
1563                         deb_file->filename);
1564                 remove_package(status_package_num, 0);
1565         } else {
1566                 printf("Unpacking %s (from %s) ...\n", package_name, deb_file->filename);
1567         }
1568
1569         /* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */
1570         info_prefix = (char *) xmalloc(strlen(package_name) + 20 + 4 + 2);
1571         sprintf(info_prefix, "/var/lib/dpkg/info/%s.", package_name);
1572         archive_handle = init_archive_deb_ar(deb_file->filename);
1573         init_archive_deb_control(archive_handle);
1574
1575         while(all_control_files[i]) {
1576                 char *c = (char *) xmalloc(3 + bb_strlen(all_control_files[i]));
1577                 sprintf(c, "./%s", all_control_files[i]);
1578                 accept_list= llist_add_to(accept_list, c);
1579                 i++;
1580         }
1581         archive_handle->sub_archive->accept = accept_list;
1582         archive_handle->sub_archive->filter = filter_accept_list;
1583         archive_handle->sub_archive->action_data = data_extract_all_prefix;
1584         archive_handle->sub_archive->buffer = info_prefix;
1585         archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
1586         unpack_ar_archive(archive_handle);
1587
1588         /* Run the preinst prior to extracting */
1589         if (run_package_script(package_name, "preinst") != 0) {
1590                 /* when preinst returns exit code != 0 then quit installation process */
1591                 bb_error_msg_and_die("subprocess pre-installation script returned error.");
1592         }
1593
1594         /* Extract data.tar.gz to the root directory */
1595         archive_handle = init_archive_deb_ar(deb_file->filename);
1596         init_archive_deb_data(archive_handle);
1597         archive_handle->sub_archive->action_data = data_extract_all_prefix;
1598         archive_handle->sub_archive->buffer = "/";
1599         archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
1600         unpack_ar_archive(archive_handle);
1601
1602         /* Create the list file */
1603         strcat(info_prefix, "list");
1604         out_stream = bb_xfopen(info_prefix, "w");
1605         while (archive_handle->sub_archive->passed) {
1606                 /* the leading . has been stripped by data_extract_all_prefix already */
1607                 fputs(archive_handle->sub_archive->passed->data, out_stream);
1608                 fputc('\n', out_stream);
1609                 archive_handle->sub_archive->passed = archive_handle->sub_archive->passed->link;
1610         }
1611         fclose(out_stream);
1612
1613         /* change status */
1614         set_status(status_num, "install", 1);
1615         set_status(status_num, "unpacked", 3);
1616
1617         free(info_prefix);
1618 }
1619
1620 static void configure_package(deb_file_t *deb_file)
1621 {
1622         const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
1623         const char *package_version = name_hashtable[package_hashtable[deb_file->package]->version];
1624         const int status_num = search_status_hashtable(package_name);
1625
1626         printf("Setting up %s (%s) ...\n", package_name, package_version);
1627
1628         /* Run the postinst script */
1629         if (run_package_script(package_name, "postinst") != 0) {
1630                 /* TODO: handle failure gracefully */
1631                 bb_error_msg_and_die("postrm failure.. set status to what?");
1632         }
1633         /* Change status to reflect success */
1634         set_status(status_num, "install", 1);
1635         set_status(status_num, "installed", 3);
1636 }
1637
1638 int dpkg_main(int argc, char **argv)
1639 {
1640         deb_file_t **deb_file = NULL;
1641         status_node_t *status_node;
1642         int opt;
1643         int package_num;
1644         int dpkg_opt = 0;
1645         int deb_count = 0;
1646         int state_status;
1647         int status_num;
1648         int i;
1649
1650         while ((opt = getopt(argc, argv, "CF:ilPru")) != -1) {
1651                 switch (opt) {
1652                         case 'C': // equivalent to --configure in official dpkg
1653                                 dpkg_opt |= dpkg_opt_configure;
1654                                 dpkg_opt |= dpkg_opt_package_name;
1655                                 break;
1656                         case 'F': // equivalent to --force in official dpkg
1657                                 if (strcmp(optarg, "depends") == 0) {
1658                                         dpkg_opt |= dpkg_opt_force_ignore_depends;
1659                                 }
1660                                 break;
1661                         case 'i':
1662                                 dpkg_opt |= dpkg_opt_install;
1663                                 dpkg_opt |= dpkg_opt_filename;
1664                                 break;
1665                         case 'l':
1666                                 dpkg_opt |= dpkg_opt_list_installed;
1667                                 break;
1668                         case 'P':
1669                                 dpkg_opt |= dpkg_opt_purge;
1670                                 dpkg_opt |= dpkg_opt_package_name;
1671                                 break;
1672                         case 'r':
1673                                 dpkg_opt |= dpkg_opt_remove;
1674                                 dpkg_opt |= dpkg_opt_package_name;
1675                                 break;
1676                         case 'u':       /* Equivalent to --unpack in official dpkg */
1677                                 dpkg_opt |= dpkg_opt_unpack;
1678                                 dpkg_opt |= dpkg_opt_filename;
1679                                 break;
1680                         default:
1681                                 bb_show_usage();
1682                 }
1683         }
1684         /* check for non-otion argument if expected  */
1685         if ((dpkg_opt == 0) || ((argc == optind) && !(dpkg_opt && dpkg_opt_list_installed))) {
1686                 bb_show_usage();
1687         }
1688
1689 /*      puts("(Reading database ... xxxxx files and directories installed.)"); */
1690         index_status_file("/var/lib/dpkg/status");
1691
1692         /* if the list action was given print the installed packages and exit */
1693         if (dpkg_opt & dpkg_opt_list_installed) {
1694                 list_packages();
1695                 return(EXIT_SUCCESS);
1696         }
1697
1698         /* Read arguments and store relevant info in structs */
1699         while (optind < argc) {
1700                 /* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */
1701                 deb_file = xrealloc(deb_file, sizeof(deb_file_t *) * (deb_count + 2));
1702                 deb_file[deb_count] = (deb_file_t *) xmalloc(sizeof(deb_file_t));
1703                 if (dpkg_opt & dpkg_opt_filename) {
1704                         archive_handle_t *archive_handle;
1705                         llist_t *control_list = NULL;
1706
1707                         /* Extract the control file */
1708                         control_list = llist_add_to(NULL, "./control");
1709                         archive_handle = init_archive_deb_ar(argv[optind]);
1710                         init_archive_deb_control(archive_handle);
1711                         deb_file[deb_count]->control_file = deb_extract_control_file_to_buffer(archive_handle, control_list);
1712                         if (deb_file[deb_count]->control_file == NULL) {
1713                                 bb_error_msg_and_die("Couldnt extract control file");
1714                         }
1715                         deb_file[deb_count]->filename = bb_xstrdup(argv[optind]);
1716                         package_num = fill_package_struct(deb_file[deb_count]->control_file);
1717
1718                         if (package_num == -1) {
1719                                 bb_error_msg("Invalid control file in %s", argv[optind]);
1720                                 optind++;
1721                                 continue;
1722                         }
1723                         deb_file[deb_count]->package = (unsigned int) package_num;
1724
1725                         /* Add the package to the status hashtable */
1726                         if ((dpkg_opt & dpkg_opt_unpack) || (dpkg_opt & dpkg_opt_install)) {
1727                                 /* Try and find a currently installed version of this package */
1728                                 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
1729                                 /* If no previous entry was found initialise a new entry */
1730                                 if ((status_hashtable[status_num] == NULL) ||
1731                                         (status_hashtable[status_num]->status == 0)) {
1732                                         status_node = (status_node_t *) xmalloc(sizeof(status_node_t));
1733                                         status_node->package = deb_file[deb_count]->package;
1734                                         /* reinstreq isnt changed to "ok" until the package control info
1735                                          * is written to the status file*/
1736                                         status_node->status = search_name_hashtable("install reinstreq not-installed");
1737                                         status_hashtable[status_num] = status_node;
1738                                 } else {
1739                                         set_status(status_num, "install", 1);
1740                                         set_status(status_num, "reinstreq", 2);
1741                                 }
1742                         }
1743                 }
1744                 else if (dpkg_opt & dpkg_opt_package_name) {
1745                         deb_file[deb_count]->filename = NULL;
1746                         deb_file[deb_count]->control_file = NULL;
1747                         deb_file[deb_count]->package = search_package_hashtable(
1748                                 search_name_hashtable(argv[optind]),
1749                                 search_name_hashtable("ANY"), VER_ANY);
1750                         if (package_hashtable[deb_file[deb_count]->package] == NULL) {
1751                                 bb_error_msg_and_die("Package %s is uninstalled or unknown\n", argv[optind]);
1752                         }
1753                         package_num = deb_file[deb_count]->package;
1754                         status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
1755                         state_status = get_status(status_num, 3);
1756
1757                         /* check package status is "installed" */
1758                         if (dpkg_opt & dpkg_opt_remove) {
1759                                 if ((strcmp(name_hashtable[state_status], "not-installed") == 0) ||
1760                                         (strcmp(name_hashtable[state_status], "config-files") == 0)) {
1761                                         bb_error_msg_and_die("%s is already removed.", name_hashtable[package_hashtable[package_num]->name]);
1762                                 }
1763                                 set_status(status_num, "deinstall", 1);
1764                         }
1765                         else if (dpkg_opt & dpkg_opt_purge) {
1766                                 /* if package status is "conf-files" then its ok */
1767                                 if (strcmp(name_hashtable[state_status], "not-installed") == 0) {
1768                                         bb_error_msg_and_die("%s is already purged.", name_hashtable[package_hashtable[package_num]->name]);
1769                                 }
1770                                 set_status(status_num, "purge", 1);
1771                         }
1772                 }
1773                 deb_count++;
1774                 optind++;
1775         }
1776         deb_file[deb_count] = NULL;
1777
1778         /* Check that the deb file arguments are installable */
1779         if ((dpkg_opt & dpkg_opt_force_ignore_depends) != dpkg_opt_force_ignore_depends) {
1780                 if (!check_deps(deb_file, 0, deb_count)) {
1781                         bb_error_msg_and_die("Dependency check failed");
1782                 }
1783         }
1784
1785         /* TODO: install or remove packages in the correct dependency order */
1786         for (i = 0; i < deb_count; i++) {
1787                 /* Remove or purge packages */
1788                 if (dpkg_opt & dpkg_opt_remove) {
1789                         remove_package(deb_file[i]->package, 1);
1790                 }
1791                 else if (dpkg_opt & dpkg_opt_purge) {
1792                         purge_package(deb_file[i]->package);
1793                 }
1794                 else if (dpkg_opt & dpkg_opt_unpack) {
1795                         unpack_package(deb_file[i]);
1796                 }
1797                 else if (dpkg_opt & dpkg_opt_install) {
1798                         unpack_package(deb_file[i]);
1799                         /* package is configured in second pass below */
1800                 }
1801                 else if (dpkg_opt & dpkg_opt_configure) {
1802                         configure_package(deb_file[i]);
1803                 }
1804         }
1805         /* configure installed packages */
1806         if (dpkg_opt & dpkg_opt_install) {
1807                 for (i = 0; i < deb_count; i++)
1808                         configure_package(deb_file[i]);
1809         }
1810
1811         write_status_file(deb_file);
1812
1813         for (i = 0; i < deb_count; i++) {
1814                 free(deb_file[i]->control_file);
1815                 free(deb_file[i]->filename);
1816                 free(deb_file[i]);
1817         }
1818
1819         free(deb_file);
1820
1821         for (i = 0; i < NAME_HASH_PRIME; i++) {
1822                 free(name_hashtable[i]);
1823         }
1824
1825         for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
1826                 if (package_hashtable[i] != NULL) {
1827                         free_package(package_hashtable[i]);
1828                 }
1829         }
1830
1831         for (i = 0; i < STATUS_HASH_PRIME; i++) {
1832                 free(status_hashtable[i]);
1833         }
1834
1835         return(EXIT_SUCCESS);
1836 }
1837