2 * Mini dpkg implementation for busybox.
3 * This is not meant as a replacement for dpkg
5 * Written By Glenn McGrath with the help of others
6 * Copyright (C) 2001 by Glenn McGrath
8 * Started life as a busybox implementation of udpkg
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.
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.
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.
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.
33 * Bugs that need to be fixed
34 * - (unknown, please let me know when you find any)
43 #include "unarchive.h"
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
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];
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;
76 unsigned int version:14;
79 typedef struct common_node_s {
81 unsigned int version:14;
82 unsigned int num_of_edges:14;
85 static common_node_t *package_hashtable[PACKAGE_HASH_PRIME + 1];
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 */
95 static status_node_t *status_hashtable[STATUS_HASH_PRIME + 1];
97 /* Even numbers are for 'extras', like ored dependencies or null */
100 EDGE_PRE_DEPENDS = 1,
101 EDGE_OR_PRE_DEPENDS = 2,
108 EDGE_RECOMMENDS = 13,
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
133 typedef struct deb_file_s {
136 unsigned int package:14;
140 static void make_hash(const char *key, unsigned int *start, unsigned int *decrement, const int hash_prime)
142 unsigned long int hash_num = key[0];
143 int len = strlen(key);
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
153 hash_num += ((key[i] + key[i-1]) << ((key[i] * i) % 24));
155 *start = (unsigned int) hash_num % hash_prime;
156 *decrement = (unsigned int) 1 + (hash_num % (hash_prime - 1));
159 /* this adds the key to the hash table */
160 static int search_name_hashtable(const char *key)
162 unsigned int probe_address = 0;
163 unsigned int probe_decrement = 0;
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);
171 probe_address -= probe_decrement;
172 if ((int)probe_address < 0) {
173 probe_address += NAME_HASH_PRIME;
177 name_hashtable[probe_address] = bb_xstrdup(key);
178 return(probe_address);
181 /* this DOESNT add the key to the hashtable
182 * TODO make it consistent with search_name_hashtable
184 static unsigned int search_status_hashtable(const char *key)
186 unsigned int probe_address = 0;
187 unsigned int probe_decrement = 0;
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) {
194 probe_address -= probe_decrement;
195 if ((int)probe_address < 0) {
196 probe_address += STATUS_HASH_PRIME;
200 return(probe_address);
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)
206 int upstream_len1 = 0;
207 int upstream_len2 = 0;
217 if (version1 == NULL) {
218 version1 = bb_xstrdup("");
220 if (version2 == NULL) {
221 version2 = bb_xstrdup("");
223 upstream_len1 = strlen(version1);
224 upstream_len2 = strlen(version2);
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);
231 tmp_int = strcspn(&version2[len2], "0123456789");
232 name2_char = bb_xstrndup(&version2[len2], tmp_int);
234 tmp_int = strcmp(name1_char, name2_char);
239 goto cleanup_version_compare_part;
243 tmp_int = strspn(&version1[len1], "0123456789");
244 name1_char = bb_xstrndup(&version1[len1], tmp_int);
246 tmp_int = strspn(&version2[len2], "0123456789");
247 name2_char = bb_xstrndup(&version2[len2], tmp_int);
249 ver_num1 = atoi(name1_char);
250 ver_num2 = atoi(name2_char);
253 if (ver_num1 < ver_num2) {
255 goto cleanup_version_compare_part;
257 else if (ver_num1 > ver_num2) {
259 goto cleanup_version_compare_part;
263 cleanup_version_compare_part:
267 /* if ver1 < ver2 return -1,
268 * if ver1 = ver2 return 0,
269 * if ver1 > ver2 return 1,
271 static int version_compare(const unsigned int ver1, const unsigned int ver2)
273 char *ch_ver1 = name_hashtable[ver1];
274 char *ch_ver2 = name_hashtable[ver2];
277 char *deb_ver1, *deb_ver2;
278 char *ver1_ptr, *ver2_ptr;
284 if (ch_ver1[1] == ':') {
286 ver1_ptr = strchr(ch_ver1, ':') + 1;
291 if (ch_ver2[1] == ':') {
293 ver2_ptr = strchr(ch_ver2, ':') + 1;
298 if (epoch1 < epoch2) {
301 else if (epoch1 > epoch2) {
305 /* Compare upstream version */
306 upstream_ver1 = bb_xstrdup(ver1_ptr);
307 upstream_ver2 = bb_xstrdup(ver2_ptr);
309 /* Chop off debian version, and store for later use */
310 deb_ver1 = strrchr(upstream_ver1, '-');
311 deb_ver2 = strrchr(upstream_ver2, '-');
320 result = version_compare_part(upstream_ver1, upstream_ver2);
329 /* Compare debian versions */
330 return(version_compare_part(deb_ver1, deb_ver2));
333 static int test_version(const unsigned int version1, const unsigned int version2, const unsigned int operator)
335 const int version_result = version_compare(version1, version2);
340 if (version_result == 0) {
345 if (version_result < 0) {
349 case (VER_LESS_EQUAL):
350 if (version_result <= 0) {
355 if (version_result > 0) {
359 case (VER_MORE_EQUAL):
360 if (version_result >= 0) {
369 static int search_package_hashtable(const unsigned int name, const unsigned int version, const unsigned int operator)
371 unsigned int probe_address = 0;
372 unsigned int probe_decrement = 0;
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);
380 if (test_version(package_hashtable[probe_address]->version, version, operator)) {
381 return(probe_address);
384 probe_address -= probe_decrement;
385 if ((int)probe_address < 0) {
386 probe_address += PACKAGE_HASH_PRIME;
389 return(probe_address);
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.
397 * needle is the index into name_hashtable of the package we are
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
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.
408 static int search_for_provides(int needle, int start_at) {
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 )
422 * Add an edge to a node
424 static void add_edge_to_node(common_node_t *node, edge_t *edge)
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;
432 * Create one new node and one new edge for every dependency.
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
441 static void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned int edge_type)
443 char *line = bb_xstrdup(whole_line);
445 char *line_ptr1 = NULL;
446 char *line_ptr2 = NULL;
454 field = strtok_r(line, ",", &line_ptr1);
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;
469 or_edge->name = search_name_hashtable(field);
470 or_edge->version = 0; // tracks the number of altenatives
472 add_edge_to_node(parent_node, or_edge);
476 edge = (edge_t *) xmalloc(sizeof(edge_t));
477 edge->type = edge_type;
479 /* Skip any extra leading spaces */
480 field2 += strspn(field2, " ");
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");
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 */
496 if (strncmp(version, "=", offset_ch) == 0) {
497 edge->operator = VER_EQUAL;
499 else if (strncmp(version, "<<", offset_ch) == 0) {
500 edge->operator = VER_LESS;
502 else if (strncmp(version, "<=", offset_ch) == 0) {
503 edge->operator = VER_LESS_EQUAL;
505 else if (strncmp(version, ">>", offset_ch) == 0) {
506 edge->operator = VER_MORE;
508 else if (strncmp(version, ">=", offset_ch) == 0) {
509 edge->operator = VER_MORE_EQUAL;
511 bb_error_msg_and_die("Illegal operator\n");
514 /* skip to start of version numbers */
515 version += offset_ch;
516 version += strspn(version, " ");
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);
524 /* Get the dependency name */
525 field2[strcspn(field2, " (")] = '\0';
526 edge->name = search_name_hashtable(field2);
531 add_edge_to_node(parent_node, edge);
532 } while ((field2 = strtok_r(NULL, "|", &line_ptr2)) != NULL);
534 } while ((field = strtok_r(NULL, ",", &line_ptr1)) != NULL);
540 static void free_package(common_node_t *node)
544 for (i = 0; i < node->num_of_edges; i++) {
552 static unsigned int fill_package_struct(char *control_buffer)
554 static const char *const field_names[] = { "Package", "Version",
555 "Pre-Depends", "Depends","Replaces", "Provides",
556 "Conflicts", "Suggests", "Recommends", "Enhances", 0
559 common_node_t *new_node = (common_node_t *) xcalloc(1, sizeof(common_node_t));
564 int buffer_length = strlen(control_buffer);
566 new_node->version = search_name_hashtable("unknown");
567 while (field_start < buffer_length) {
568 unsigned short field_num;
570 field_start += read_package_field(&control_buffer[field_start],
571 &field_name, &field_value);
573 if (field_name == NULL) {
574 goto fill_package_struct_cleanup; /* Oh no, the dreaded goto statement ! */
577 field_num = compare_string_array(field_names, field_name);
579 case 0: /* Package */
580 new_node->name = search_name_hashtable(field_value);
582 case 1: /* Version */
583 new_node->version = search_name_hashtable(field_value);
585 case 2: /* Pre-Depends */
586 add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
588 case 3: /* Depends */
589 add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
591 case 4: /* Replaces */
592 add_split_dependencies(new_node, field_value, EDGE_REPLACES);
594 case 5: /* Provides */
595 add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
597 case 6: /* Conflicts */
598 add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
600 case 7: /* Suggests */
601 add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
603 case 8: /* Recommends */
604 add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
606 case 9: /* Enhances */
607 add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
610 fill_package_struct_cleanup:
615 if (new_node->version == search_name_hashtable("unknown")) {
616 free_package(new_node);
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;
623 free_package(new_node);
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)
631 char *status_string = name_hashtable[status_hashtable[status_node]->status];
632 char *state_sub_string;
633 unsigned int state_sub_num;
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, " ");
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);
651 static void set_status(const unsigned int status_node_num, const char *new_value, const int position)
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]);
665 want = new_value_num;
666 want_len = new_value_len;
669 flag = new_value_num;
670 flag_len = new_value_len;
673 status = new_value_num;
674 status_len = new_value_len;
677 bb_error_msg_and_die("DEBUG ONLY: this shouldnt happen");
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);
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";
692 status_want = get_status(status_num, 1);
693 status_state = get_status(status_num, 3);
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";
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";
708 return "is not installed or flagged to be installed";
712 static void index_status_file(const char *filename)
715 char *control_buffer;
717 status_node_t *status_node = NULL;
718 unsigned int status_num;
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) {
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);
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;
738 free(control_buffer);
744 #if 0 /* this code is no longer used */
745 char *get_depends_field(common_node_t *package, const int depends_type)
747 char *depends = NULL;
748 char *old_sep = (char *)xcalloc(1, 3);
749 char *new_sep = (char *)xcalloc(1, 3);
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)) {
760 if ((package->edge[i]->type == depends_type) ||
761 (package->edge[i]->type == depends_type + 1)) {
762 /* Check if its the first time through */
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);
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, ", ");
775 else if (package->edge[i]->type == depends_type + 1) {
776 strcpy(new_sep, "| ");
779 if (depends_size == line_size) {
782 if ((strcmp(old_sep, "| ") == 0) && (strcmp(new_sep, "| ") == 0)) {
783 strcat(depends, " | ");
785 strcat(depends, ", ");
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, " (= ");
794 else if (package->edge[i]->operator == VER_LESS) {
795 strcat(depends, " (<< ");
797 else if (package->edge[i]->operator == VER_LESS_EQUAL) {
798 strcat(depends, " (<= ");
800 else if (package->edge[i]->operator == VER_MORE) {
801 strcat(depends, " (>> ");
803 else if (package->edge[i]->operator == VER_MORE_EQUAL) {
804 strcat(depends, " (>= ");
806 strcat(depends, " (");
808 strcat(depends, name_hashtable[package->edge[i]->version]);
809 strcat(depends, ")");
817 static void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
823 start += read_package_field(&control_buffer[start], &name, &value);
827 if (strcmp(name, "Status") != 0) {
828 fprintf(new_status_file, "%s: %s\n", name, value);
834 /* This could do with a cleanup */
835 static void write_status_file(deb_file_t **deb_file)
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");
840 char *status_from_file;
841 char *control_buffer = NULL;
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) {
855 tmp_string += strspn(tmp_string, " \n\t");
856 package_name = bb_xstrndup(tmp_string, strcspn(tmp_string, "\n\0"));
858 tmp_string = strstr(control_buffer, "Status:");
859 if (tmp_string != NULL) {
860 /* Seperate the status value from the control buffer */
862 tmp_string += strspn(tmp_string, " \n\t");
863 status_from_file = bb_xstrndup(tmp_string, strcspn(tmp_string, "\n"));
865 status_from_file = NULL;
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 */
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]);
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);
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);
904 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
905 if (field_name == NULL) {
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);
914 fputs("\n", new_status_file);
916 else if (strcmp("config-files", name_hashtable[state_status]) == 0) {
917 /* only change the status line */
921 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
922 if (field_name == NULL) {
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);
929 fprintf(new_status_file, "%s: %s\n", field_name, field_value);
933 fputs("\n", new_status_file);
937 /* If the package from the status file wasnt handle above, do it now*/
939 fprintf(new_status_file, "%s\n\n", control_buffer);
942 free(status_from_file);
944 free(control_buffer);
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]);
956 fclose(old_status_file);
957 fclose(new_status_file);
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");
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");
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");
976 /* This function returns TRUE if the given package can satisfy a
977 * dependency of type depend_type.
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
983 static int package_satisfies_dependency(int package, int depend_type)
985 int status_num = search_status_hashtable(name_hashtable[package_hashtable[package]->name]);
987 /* status could be unknown if package is a pure virtual
988 * provides which cannot satisfy any dependency by itself.
990 if ( status_hashtable[status_num] == NULL )
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");
1000 static int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
1002 int *conflicts = NULL;
1003 int conflicts_num = 0;
1007 /* Check for conflicts
1008 * TODO: TEST if conflicts with other packages to be installed
1010 * Add install packages and the packages they provide
1011 * to the list of files to check conflicts for
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;
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;
1037 conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
1038 conflicts[conflicts_num] = conflicts_package_num;
1045 /* Check conflicts */
1047 while (deb_file[i] != NULL) {
1048 const common_node_t *package_node = package_hashtable[deb_file[i]->package];
1050 status_num = search_status_hashtable(name_hashtable[package_node->name]);
1052 if (get_status(status_num, 3) == search_name_hashtable("installed")) {
1057 for (j = 0; j < package_node->num_of_edges; j++) {
1058 const edge_t *package_edge = package_node->edge[j];
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);
1066 if (package_hashtable[package_num] != NULL) {
1067 status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
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);
1076 bb_error_msg_and_die("Package %s conflicts with %s",
1077 name_hashtable[package_node->name],
1078 name_hashtable[package_edge->name]);
1086 /* Check dependendcies */
1087 for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
1089 int number_of_alternatives = 0;
1090 const edge_t * root_of_alternatives = NULL;
1091 const common_node_t *package_node = package_hashtable[i];
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.
1097 if ( package_node == NULL ) continue;
1099 status_num = search_status_hashtable(name_hashtable[package_node->name]);
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.
1105 if ( status_hashtable[status_num] == NULL ) continue;
1107 /* If we don't want this package installed then we may
1108 * as well ignore it's dependencies.
1110 if (get_status(status_num, 1) != search_name_hashtable("install")) {
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
1119 if (state_status == search_name_hashtable("installed"))
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 :-)
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;
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;
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;
1141 package_num = search_package_hashtable(package_edge->name, package_edge->version, package_edge->operator);
1143 if (package_edge->type == EDGE_PRE_DEPENDS ||
1144 package_edge->type == EDGE_DEPENDS ) {
1148 /* If we are inside an alternative then check
1149 * this edge is the right type.
1151 * EDGE_DEPENDS == OR_DEPENDS -1
1152 * EDGE_PRE_DEPENDS == OR_PRE_DEPENDS -1
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);
1158 if (package_hashtable[package_num] != NULL)
1159 result = !package_satisfies_dependency(package_num, package_edge->type);
1161 if (result) { /* check for other package which provide what we are looking for */
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");
1169 result = !package_satisfies_dependency(provider, package_edge->type);
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]);
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
1199 j += number_of_alternatives;
1200 number_of_alternatives = 0;
1209 static char **create_list(const char *filename)
1212 char **file_list = NULL;
1216 /* don't use [xw]fopen here, handle error ourself */
1217 list_stream = fopen(filename, "r");
1218 if (list_stream == NULL) {
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;
1227 fclose(list_stream);
1232 file_list[count] = NULL;
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)
1240 struct stat path_stat;
1242 int remove_flag = FALSE;
1245 if (remove_names == NULL) {
1248 for (i = 0; remove_names[i] != NULL; i++) {
1250 if (exclude_names != NULL) {
1251 for (j = 0; exclude_names[j] != 0; j++) {
1252 if (strcmp(remove_names[i], exclude_names[j]) == 0) {
1259 if (lstat(remove_names[i], &path_stat) < 0) {
1262 if (S_ISDIR(path_stat.st_mode)) {
1263 if (rmdir(remove_names[i]) != -1) {
1267 if (unlink(remove_names[i]) != -1) {
1273 return(remove_flag);
1276 static int run_package_script(const char *package_name, const char *script_type)
1278 struct stat path_stat;
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);
1285 /* If the file doesnt exist is isnt a fatal */
1286 if (lstat(script_path, &path_stat) < 0) {
1287 result = EXIT_SUCCESS;
1289 result = system(script_path);
1295 static const char *all_control_files[] = {"preinst", "postinst", "prerm", "postrm",
1296 "list", "md5sums", "shlibs", "conffiles", "config", "templates", NULL };
1298 static char **all_control_list(const char *package_name)
1300 unsigned short i = 0;
1301 char **remove_files;
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]);
1310 remove_files[sizeof(all_control_files)/sizeof(char*) - 1] = NULL;
1312 return(remove_files);
1315 static void free_array(char **array)
1319 unsigned short i = 0;
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.
1332 static void list_packages(void)
1336 printf(" Name Version\n");
1337 printf("+++-==============-==============\n");
1339 /* go through status hash, dereference package hash and finally strings */
1340 for (i=0; i<STATUS_HASH_PRIME+1; i++) {
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 */
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];
1354 /* get abbreviation for status field 1 */
1355 s1 = stat_str[0] == 'i' ? 'i' : 'r';
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++;
1363 /* print out the line formatted like Debian dpkg */
1364 printf("%c%c %-14s %s\n", s1, s2, name_str, vers_str);
1369 static void remove_package(const unsigned int package_num, int noisy)
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];
1382 printf("Removing %s (%s) ...\n", package_name, package_version);
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");
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);
1394 sprintf(conffile_name, "/var/lib/dpkg/info/%s.conffiles", package_name);
1395 exclude_files = create_list(conffile_name);
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);
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;
1409 /* Create a list of all /var/lib/dpkg/info/<package> files */
1410 remove_files = all_control_list(package_name);
1412 remove_file_array(remove_files, exclude_files);
1413 free_array(remove_files);
1414 free_array(exclude_files);
1416 /* rename <package>.conffile to <package>.list */
1417 rename(conffile_name, list_name);
1419 /* Change package status */
1420 set_status(status_num, "config-files", 3);
1423 static void purge_package(const unsigned int package_num)
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];
1432 printf("Purging %s (%s) ...\n", package_name, package_version);
1434 /* run prerm script */
1435 if (run_package_script(package_name, "prerm") != 0) {
1436 bb_error_msg_and_die("script failed, prerm failure");
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);
1443 exclude_files = xmalloc(sizeof(char*));
1444 exclude_files[0] = NULL;
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);
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);
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?");
1461 /* Change package status */
1462 set_status(status_num, "not-installed", 3);
1465 static archive_handle_t *init_archive_deb_ar(const char *filename)
1467 archive_handle_t *ar_handle;
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);
1477 static void init_archive_deb_control(archive_handle_t *ar_handle)
1479 archive_handle_t *tar_handle;
1481 /* Setup the tar archive handle */
1482 tar_handle = init_handle();
1483 tar_handle->src_fd = ar_handle->src_fd;
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");
1489 #ifdef CONFIG_FEATURE_DEB_TAR_BZ2
1490 ar_handle->accept = llist_add_to(ar_handle->accept, "control.tar.bz2");
1493 /* Assign the tar handle as a subarchive of the ar handle */
1494 ar_handle->sub_archive = tar_handle;
1499 static void init_archive_deb_data(archive_handle_t *ar_handle)
1501 archive_handle_t *tar_handle;
1503 /* Setup the tar archive handle */
1504 tar_handle = init_handle();
1505 tar_handle->src_fd = ar_handle->src_fd;
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");
1511 #ifdef CONFIG_FEATURE_DEB_TAR_BZ2
1512 ar_handle->accept = llist_add_to(ar_handle->accept, "data.tar.bz2");
1515 /* Assign the tar handle as a subarchive of the ar handle */
1516 ar_handle->sub_archive = tar_handle;
1521 static char *deb_extract_control_file_to_buffer(archive_handle_t *ar_handle, llist_t *myaccept)
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;
1527 unpack_ar_archive(ar_handle);
1528 close(ar_handle->src_fd);
1530 return(ar_handle->sub_archive->buffer);
1533 static void data_extract_all_prefix(archive_handle_t *archive_handle)
1535 char *name_ptr = archive_handle->file_header->name;
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);
1547 static void unpack_package(deb_file_t *deb_file)
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;
1553 archive_handle_t *archive_handle;
1555 llist_t *accept_list = NULL;
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);
1566 printf("Unpacking %s (from %s) ...\n", package_name, deb_file->filename);
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);
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);
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);
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.");
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);
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;
1614 set_status(status_num, "install", 1);
1615 set_status(status_num, "unpacked", 3);
1620 static void configure_package(deb_file_t *deb_file)
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);
1626 printf("Setting up %s (%s) ...\n", package_name, package_version);
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?");
1633 /* Change status to reflect success */
1634 set_status(status_num, "install", 1);
1635 set_status(status_num, "installed", 3);
1638 int dpkg_main(int argc, char **argv)
1640 deb_file_t **deb_file = NULL;
1641 status_node_t *status_node;
1650 while ((opt = getopt(argc, argv, "CF:ilPru")) != -1) {
1652 case 'C': // equivalent to --configure in official dpkg
1653 dpkg_opt |= dpkg_opt_configure;
1654 dpkg_opt |= dpkg_opt_package_name;
1656 case 'F': // equivalent to --force in official dpkg
1657 if (strcmp(optarg, "depends") == 0) {
1658 dpkg_opt |= dpkg_opt_force_ignore_depends;
1662 dpkg_opt |= dpkg_opt_install;
1663 dpkg_opt |= dpkg_opt_filename;
1666 dpkg_opt |= dpkg_opt_list_installed;
1669 dpkg_opt |= dpkg_opt_purge;
1670 dpkg_opt |= dpkg_opt_package_name;
1673 dpkg_opt |= dpkg_opt_remove;
1674 dpkg_opt |= dpkg_opt_package_name;
1676 case 'u': /* Equivalent to --unpack in official dpkg */
1677 dpkg_opt |= dpkg_opt_unpack;
1678 dpkg_opt |= dpkg_opt_filename;
1684 /* check for non-otion argument if expected */
1685 if ((dpkg_opt == 0) || ((argc == optind) && !(dpkg_opt && dpkg_opt_list_installed))) {
1689 /* puts("(Reading database ... xxxxx files and directories installed.)"); */
1690 index_status_file("/var/lib/dpkg/status");
1692 /* if the list action was given print the installed packages and exit */
1693 if (dpkg_opt & dpkg_opt_list_installed) {
1695 return(EXIT_SUCCESS);
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;
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");
1715 deb_file[deb_count]->filename = bb_xstrdup(argv[optind]);
1716 package_num = fill_package_struct(deb_file[deb_count]->control_file);
1718 if (package_num == -1) {
1719 bb_error_msg("Invalid control file in %s", argv[optind]);
1723 deb_file[deb_count]->package = (unsigned int) package_num;
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;
1739 set_status(status_num, "install", 1);
1740 set_status(status_num, "reinstreq", 2);
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]);
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);
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]);
1763 set_status(status_num, "deinstall", 1);
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]);
1770 set_status(status_num, "purge", 1);
1776 deb_file[deb_count] = NULL;
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");
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);
1791 else if (dpkg_opt & dpkg_opt_purge) {
1792 purge_package(deb_file[i]->package);
1794 else if (dpkg_opt & dpkg_opt_unpack) {
1795 unpack_package(deb_file[i]);
1797 else if (dpkg_opt & dpkg_opt_install) {
1798 unpack_package(deb_file[i]);
1799 /* package is configured in second pass below */
1801 else if (dpkg_opt & dpkg_opt_configure) {
1802 configure_package(deb_file[i]);
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]);
1811 write_status_file(deb_file);
1813 for (i = 0; i < deb_count; i++) {
1814 free(deb_file[i]->control_file);
1815 free(deb_file[i]->filename);
1821 for (i = 0; i < NAME_HASH_PRIME; i++) {
1822 free(name_hashtable[i]);
1825 for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
1826 if (package_hashtable[i] != NULL) {
1827 free_package(package_hashtable[i]);
1831 for (i = 0; i < STATUS_HASH_PRIME; i++) {
1832 free(status_hashtable[i]);
1835 return(EXIT_SUCCESS);