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++) {
553 static unsigned int fill_package_struct(char *control_buffer)
555 common_node_t *new_node = (common_node_t *) xcalloc(1, sizeof(common_node_t));
556 const char *field_names[] = { "Package", "Version", "Pre-Depends", "Depends",
557 "Replaces", "Provides", "Conflicts", "Suggests", "Recommends", "Enhances", 0};
562 int buffer_length = strlen(control_buffer);
564 new_node->version = search_name_hashtable("unknown");
565 while (field_start < buffer_length) {
566 unsigned short field_num;
568 field_start += read_package_field(&control_buffer[field_start],
569 &field_name, &field_value);
571 if (field_name == NULL) {
572 goto fill_package_struct_cleanup; /* Oh no, the dreaded goto statement ! */
575 field_num = compare_string_array(field_names, field_name);
577 case 0: /* Package */
578 new_node->name = search_name_hashtable(field_value);
580 case 1: /* Version */
581 new_node->version = search_name_hashtable(field_value);
583 case 2: /* Pre-Depends */
584 add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
586 case 3: /* Depends */
587 add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
589 case 4: /* Replaces */
590 add_split_dependencies(new_node, field_value, EDGE_REPLACES);
592 case 5: /* Provides */
593 add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
595 case 6: /* Conflicts */
596 add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
598 case 7: /* Suggests */
599 add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
601 case 8: /* Recommends */
602 add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
604 case 9: /* Enhances */
605 add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
608 fill_package_struct_cleanup:
613 if (new_node->version == search_name_hashtable("unknown")) {
614 free_package(new_node);
617 num = search_package_hashtable(new_node->name, new_node->version, VER_EQUAL);
618 if (package_hashtable[num] == NULL) {
619 package_hashtable[num] = new_node;
621 free_package(new_node);
626 /* if num = 1, it returns the want status, 2 returns flag, 3 returns status */
627 static unsigned int get_status(const unsigned int status_node, const int num)
629 char *status_string = name_hashtable[status_hashtable[status_node]->status];
630 char *state_sub_string;
631 unsigned int state_sub_num;
635 /* set tmp_string to point to the start of the word number */
636 for (i = 1; i < num; i++) {
637 /* skip past a word */
638 status_string += strcspn(status_string, " ");
639 /* skip past the separating spaces */
640 status_string += strspn(status_string, " ");
642 len = strcspn(status_string, " \n\0");
643 state_sub_string = bb_xstrndup(status_string, len);
644 state_sub_num = search_name_hashtable(state_sub_string);
645 free(state_sub_string);
646 return(state_sub_num);
649 static void set_status(const unsigned int status_node_num, const char *new_value, const int position)
651 const unsigned int new_value_len = strlen(new_value);
652 const unsigned int new_value_num = search_name_hashtable(new_value);
653 unsigned int want = get_status(status_node_num, 1);
654 unsigned int flag = get_status(status_node_num, 2);
655 unsigned int status = get_status(status_node_num, 3);
656 int want_len = strlen(name_hashtable[want]);
657 int flag_len = strlen(name_hashtable[flag]);
658 int status_len = strlen(name_hashtable[status]);
663 want = new_value_num;
664 want_len = new_value_len;
667 flag = new_value_num;
668 flag_len = new_value_len;
671 status = new_value_num;
672 status_len = new_value_len;
675 bb_error_msg_and_die("DEBUG ONLY: this shouldnt happen");
678 new_status = (char *) xmalloc(want_len + flag_len + status_len + 3);
679 sprintf(new_status, "%s %s %s", name_hashtable[want], name_hashtable[flag], name_hashtable[status]);
680 status_hashtable[status_node_num]->status = search_name_hashtable(new_status);
685 static const char *describe_status(int status_num) {
686 int status_want, status_state ;
687 if ( status_hashtable[status_num] == NULL || status_hashtable[status_num]->status == 0 )
688 return "is not installed or flagged to be installed\n";
690 status_want = get_status(status_num, 1);
691 status_state = get_status(status_num, 3);
693 if ( status_state == search_name_hashtable("installed") ) {
694 if ( status_want == search_name_hashtable("install") )
695 return "is installed";
696 if ( status_want == search_name_hashtable("deinstall") )
697 return "is marked to be removed";
698 if ( status_want == search_name_hashtable("purge") )
699 return "is marked to be purged";
701 if ( status_want == search_name_hashtable("unknown") )
702 return "is in an indeterminate state";
703 if ( status_want == search_name_hashtable("install") )
704 return "is marked to be installed";
706 return "is not installed or flagged to be installed";
710 static void index_status_file(const char *filename)
713 char *control_buffer;
715 status_node_t *status_node = NULL;
716 unsigned int status_num;
718 status_file = bb_xfopen(filename, "r");
719 while ((control_buffer = fgets_str(status_file, "\n\n")) != NULL) {
720 const unsigned int package_num = fill_package_struct(control_buffer);
721 if (package_num != -1) {
722 status_node = xmalloc(sizeof(status_node_t));
723 /* fill_package_struct doesnt handle the status field */
724 status_line = strstr(control_buffer, "Status:");
725 if (status_line != NULL) {
727 status_line += strspn(status_line, " \n\t");
728 status_line = bb_xstrndup(status_line, strcspn(status_line, "\n\0"));
729 status_node->status = search_name_hashtable(status_line);
732 status_node->package = package_num;
733 status_num = search_status_hashtable(name_hashtable[package_hashtable[status_node->package]->name]);
734 status_hashtable[status_num] = status_node;
736 free(control_buffer);
742 #if 0 /* this code is no longer used */
743 char *get_depends_field(common_node_t *package, const int depends_type)
745 char *depends = NULL;
746 char *old_sep = (char *)xcalloc(1, 3);
747 char *new_sep = (char *)xcalloc(1, 3);
753 for (i = 0; i < package->num_of_edges; i++) {
754 if ((package->edge[i]->type == EDGE_OR_PRE_DEPENDS) ||
755 (package->edge[i]->type == EDGE_OR_DEPENDS)) {
758 if ((package->edge[i]->type == depends_type) ||
759 (package->edge[i]->type == depends_type + 1)) {
760 /* Check if its the first time through */
762 depends_size = 8 + strlen(name_hashtable[package->edge[i]->name])
763 + strlen(name_hashtable[package->edge[i]->version]);
764 line_size += depends_size;
765 depends = (char *) xrealloc(depends, line_size + 1);
767 /* Check to see if this dependency is the type we are looking for
768 * +1 to check for 'extra' types, e.g. ored dependecies */
769 strcpy(old_sep, new_sep);
770 if (package->edge[i]->type == depends_type) {
771 strcpy(new_sep, ", ");
773 else if (package->edge[i]->type == depends_type + 1) {
774 strcpy(new_sep, "| ");
777 if (depends_size == line_size) {
780 if ((strcmp(old_sep, "| ") == 0) && (strcmp(new_sep, "| ") == 0)) {
781 strcat(depends, " | ");
783 strcat(depends, ", ");
787 strcat(depends, name_hashtable[package->edge[i]->name]);
788 if (strcmp(name_hashtable[package->edge[i]->version], "NULL") != 0) {
789 if (package->edge[i]->operator == VER_EQUAL) {
790 strcat(depends, " (= ");
792 else if (package->edge[i]->operator == VER_LESS) {
793 strcat(depends, " (<< ");
795 else if (package->edge[i]->operator == VER_LESS_EQUAL) {
796 strcat(depends, " (<= ");
798 else if (package->edge[i]->operator == VER_MORE) {
799 strcat(depends, " (>> ");
801 else if (package->edge[i]->operator == VER_MORE_EQUAL) {
802 strcat(depends, " (>= ");
804 strcat(depends, " (");
806 strcat(depends, name_hashtable[package->edge[i]->version]);
807 strcat(depends, ")");
815 static void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
821 start += read_package_field(&control_buffer[start], &name, &value);
825 if (strcmp(name, "Status") != 0) {
826 fprintf(new_status_file, "%s: %s\n", name, value);
832 /* This could do with a cleanup */
833 static void write_status_file(deb_file_t **deb_file)
835 FILE *old_status_file = bb_xfopen("/var/lib/dpkg/status", "r");
836 FILE *new_status_file = bb_xfopen("/var/lib/dpkg/status.udeb", "w");
838 char *status_from_file;
839 char *control_buffer = NULL;
846 /* Update previously known packages */
847 while ((control_buffer = fgets_str(old_status_file, "\n\n")) != NULL) {
848 if ((tmp_string = strstr(control_buffer, "Package:")) == NULL) {
853 tmp_string += strspn(tmp_string, " \n\t");
854 package_name = bb_xstrndup(tmp_string, strcspn(tmp_string, "\n\0"));
856 tmp_string = strstr(control_buffer, "Status:");
857 if (tmp_string != NULL) {
858 /* Seperate the status value from the control buffer */
860 tmp_string += strspn(tmp_string, " \n\t");
861 status_from_file = bb_xstrndup(tmp_string, strcspn(tmp_string, "\n"));
863 status_from_file = NULL;
866 /* Find this package in the status hashtable */
867 status_num = search_status_hashtable(package_name);
868 if (status_hashtable[status_num] != NULL) {
869 const char *status_from_hashtable = name_hashtable[status_hashtable[status_num]->status];
870 if (strcmp(status_from_file, status_from_hashtable) != 0) {
871 /* New status isnt exactly the same as old status */
872 const int state_status = get_status(status_num, 3);
873 if ((strcmp("installed", name_hashtable[state_status]) == 0) ||
874 (strcmp("unpacked", name_hashtable[state_status]) == 0)) {
875 /* We need to add the control file from the package */
877 while(deb_file[i] != NULL) {
878 if (strcmp(package_name, name_hashtable[package_hashtable[deb_file[i]->package]->name]) == 0) {
879 /* Write a status file entry with a modified status */
880 /* remove trailing \n's */
881 write_buffer_no_status(new_status_file, deb_file[i]->control_file);
882 set_status(status_num, "ok", 2);
883 fprintf(new_status_file, "Status: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
889 /* This is temperary, debugging only */
890 if (deb_file[i] == NULL) {
891 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 else if (strcmp("not-installed", name_hashtable[state_status]) == 0) {
895 /* Only write the Package, Status, Priority and Section lines */
896 fprintf(new_status_file, "Package: %s\n", package_name);
897 fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
902 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
903 if (field_name == NULL) {
906 if ((strcmp(field_name, "Priority") == 0) ||
907 (strcmp(field_name, "Section") == 0)) {
908 fprintf(new_status_file, "%s: %s\n", field_name, field_value);
912 fputs("\n", new_status_file);
914 else if (strcmp("config-files", name_hashtable[state_status]) == 0) {
915 /* only change the status line */
919 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
920 if (field_name == NULL) {
923 /* Setup start point for next field */
924 if (strcmp(field_name, "Status") == 0) {
925 fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
927 fprintf(new_status_file, "%s: %s\n", field_name, field_value);
931 fputs("\n", new_status_file);
935 /* If the package from the status file wasnt handle above, do it now*/
937 fprintf(new_status_file, "%s\n\n", control_buffer);
940 free(status_from_file);
942 free(control_buffer);
945 /* Write any new packages */
946 for(i = 0; deb_file[i] != NULL; i++) {
947 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[i]->package]->name]);
948 if (strcmp("reinstreq", name_hashtable[get_status(status_num, 2)]) == 0) {
949 write_buffer_no_status(new_status_file, deb_file[i]->control_file);
950 set_status(status_num, "ok", 2);
951 fprintf(new_status_file, "Status: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
954 fclose(old_status_file);
955 fclose(new_status_file);
958 /* Create a separate backfile to dpkg */
959 if (rename("/var/lib/dpkg/status", "/var/lib/dpkg/status.udeb.bak") == -1) {
960 struct stat stat_buf;
961 if (stat("/var/lib/dpkg/status", &stat_buf) == 0) {
962 bb_error_msg_and_die("Couldnt create backup status file");
964 /* Its ok if renaming the status file fails because status
965 * file doesnt exist, maybe we are starting from scratch */
966 bb_error_msg("No status file found, creating new one");
969 if (rename("/var/lib/dpkg/status.udeb", "/var/lib/dpkg/status") == -1) {
970 bb_error_msg_and_die("DANGER: Couldnt create status file, you need to manually repair your status file");
974 /* This function returns TRUE if the given package can satisfy a
975 * dependency of type depend_type.
977 * A pre-depends is satisfied only if a package is already installed,
978 * which a regular depends can be satisfied by a package which we want
981 static int package_satisfies_dependency(int package, int depend_type)
983 int status_num = search_status_hashtable(name_hashtable[package_hashtable[package]->name]);
985 /* status could be unknown if package is a pure virtual
986 * provides which cannot satisfy any dependency by itself.
988 if ( status_hashtable[status_num] == NULL )
991 switch (depend_type) {
992 case EDGE_PRE_DEPENDS: return get_status(status_num, 3) == search_name_hashtable("installed");
993 case EDGE_DEPENDS: return get_status(status_num, 1) == search_name_hashtable("install");
998 static int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
1000 int *conflicts = NULL;
1001 int conflicts_num = 0;
1005 /* Check for conflicts
1006 * TODO: TEST if conflicts with other packages to be installed
1008 * Add install packages and the packages they provide
1009 * to the list of files to check conflicts for
1012 /* Create array of package numbers to check against
1013 * installed package for conflicts*/
1014 while (deb_file[i] != NULL) {
1015 const unsigned int package_num = deb_file[i]->package;
1016 conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
1017 conflicts[conflicts_num] = package_num;
1019 /* add provides to conflicts list */
1020 for (j = 0; j < package_hashtable[package_num]->num_of_edges; j++) {
1021 if (package_hashtable[package_num]->edge[j]->type == EDGE_PROVIDES) {
1022 const int conflicts_package_num = search_package_hashtable(
1023 package_hashtable[package_num]->edge[j]->name,
1024 package_hashtable[package_num]->edge[j]->version,
1025 package_hashtable[package_num]->edge[j]->operator);
1026 if (package_hashtable[conflicts_package_num] == NULL) {
1027 /* create a new package */
1028 common_node_t *new_node = (common_node_t *) xmalloc(sizeof(common_node_t));
1029 new_node->name = package_hashtable[package_num]->edge[j]->name;
1030 new_node->version = package_hashtable[package_num]->edge[j]->version;
1031 new_node->num_of_edges = 0;
1032 new_node->edge = NULL;
1033 package_hashtable[conflicts_package_num] = new_node;
1035 conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
1036 conflicts[conflicts_num] = conflicts_package_num;
1043 /* Check conflicts */
1045 while (deb_file[i] != NULL) {
1046 const common_node_t *package_node = package_hashtable[deb_file[i]->package];
1048 status_num = search_status_hashtable(name_hashtable[package_node->name]);
1050 if (get_status(status_num, 3) == search_name_hashtable("installed")) {
1055 for (j = 0; j < package_node->num_of_edges; j++) {
1056 const edge_t *package_edge = package_node->edge[j];
1058 if (package_edge->type == EDGE_CONFLICTS) {
1059 const unsigned int package_num =
1060 search_package_hashtable(package_edge->name,
1061 package_edge->version,
1062 package_edge->operator);
1064 if (package_hashtable[package_num] != NULL) {
1065 status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
1067 if (get_status(status_num, 1) == search_name_hashtable("install")) {
1068 result = test_version(package_hashtable[deb_file[i]->package]->version,
1069 package_edge->version, package_edge->operator);
1074 bb_error_msg_and_die("Package %s conflicts with %s",
1075 name_hashtable[package_node->name],
1076 name_hashtable[package_edge->name]);
1084 /* Check dependendcies */
1085 for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
1087 int number_of_alternatives = 0;
1088 const edge_t * root_of_alternatives = NULL;
1089 const common_node_t *package_node = package_hashtable[i];
1091 /* If the package node does not exist then this
1092 * package is a virtual one. In which case there are
1093 * no dependencies to check.
1095 if ( package_node == NULL ) continue;
1097 status_num = search_status_hashtable(name_hashtable[package_node->name]);
1099 /* If there is no status then this package is a
1100 * virtual one provided by something else. In which
1101 * case there are no dependencies to check.
1103 if ( status_hashtable[status_num] == NULL ) continue;
1105 /* If we don't want this package installed then we may
1106 * as well ignore it's dependencies.
1108 if (get_status(status_num, 1) != search_name_hashtable("install")) {
1113 /* This might be needed so we don't complain about
1114 * things which are broken but unrelated to the
1115 * packages that are currently being installed
1117 if (state_status == search_name_hashtable("installed"))
1121 /* This code is tested only for EDGE_DEPENDS, since I
1122 * have no suitable pre-depends available. There is no
1123 * reason that it shouldn't work though :-)
1125 for (j = 0; j < package_node->num_of_edges; j++) {
1126 const edge_t *package_edge = package_node->edge[j];
1127 unsigned int package_num;
1129 if ( package_edge->type == EDGE_OR_PRE_DEPENDS ||
1130 package_edge->type == EDGE_OR_DEPENDS ) { /* start an EDGE_OR_ list */
1131 number_of_alternatives = package_edge->version;
1132 root_of_alternatives = package_edge;
1134 } else if ( number_of_alternatives == 0 ) { /* not in the middle of an EDGE_OR_ list */
1135 number_of_alternatives = 1;
1136 root_of_alternatives = NULL;
1139 package_num = search_package_hashtable(package_edge->name, package_edge->version, package_edge->operator);
1141 if (package_edge->type == EDGE_PRE_DEPENDS ||
1142 package_edge->type == EDGE_DEPENDS ) {
1146 /* If we are inside an alternative then check
1147 * this edge is the right type.
1149 * EDGE_DEPENDS == OR_DEPENDS -1
1150 * EDGE_PRE_DEPENDS == OR_PRE_DEPENDS -1
1152 if ( root_of_alternatives && package_edge->type != root_of_alternatives->type - 1)
1153 bb_error_msg_and_die("Fatal error. Package dependencies corrupt: %d != %d - 1 \n",
1154 package_edge->type, root_of_alternatives->type);
1156 if (package_hashtable[package_num] != NULL)
1157 result = !package_satisfies_dependency(package_num, package_edge->type);
1159 if (result) { /* check for other package which provide what we are looking for */
1162 while ( (provider = search_for_provides(package_edge->name, provider) ) > -1 ) {
1163 if ( package_hashtable[provider] == NULL ) {
1164 printf("Have a provider but no package information for it\n");
1167 result = !package_satisfies_dependency(provider, package_edge->type);
1174 /* It must be already installed, or to be installed */
1175 number_of_alternatives--;
1176 if (result && number_of_alternatives == 0) {
1177 if ( root_of_alternatives )
1178 bb_error_msg_and_die(
1179 "Package %s %sdepends on %s, "
1180 "which cannot be satisfied",
1181 name_hashtable[package_node->name],
1182 package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1183 name_hashtable[root_of_alternatives->name]);
1185 bb_error_msg_and_die(
1186 "Package %s %sdepends on %s, which %s\n",
1187 name_hashtable[package_node->name],
1188 package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1189 name_hashtable[package_edge->name],
1190 describe_status(status_num));
1191 } else if ( result == 0 && number_of_alternatives ) {
1192 /* we've found a package which
1193 * satisfies the dependency,
1194 * so skip over the rest of
1197 j += number_of_alternatives;
1198 number_of_alternatives = 0;
1207 static char **create_list(const char *filename)
1210 char **file_list = NULL;
1214 /* don't use [xw]fopen here, handle error ourself */
1215 list_stream = fopen(filename, "r");
1216 if (list_stream == NULL) {
1220 while ((line = bb_get_chomped_line_from_file(list_stream)) != NULL) {
1221 file_list = xrealloc(file_list, sizeof(char *) * (count + 2));
1222 file_list[count] = line;
1225 fclose(list_stream);
1230 file_list[count] = NULL;
1235 /* maybe i should try and hook this into remove_file.c somehow */
1236 static int remove_file_array(char **remove_names, char **exclude_names)
1238 struct stat path_stat;
1240 int remove_flag = FALSE;
1243 if (remove_names == NULL) {
1246 for (i = 0; remove_names[i] != NULL; i++) {
1248 if (exclude_names != NULL) {
1249 for (j = 0; exclude_names[j] != 0; j++) {
1250 if (strcmp(remove_names[i], exclude_names[j]) == 0) {
1257 if (lstat(remove_names[i], &path_stat) < 0) {
1260 if (S_ISDIR(path_stat.st_mode)) {
1261 if (rmdir(remove_names[i]) != -1) {
1265 if (unlink(remove_names[i]) != -1) {
1271 return(remove_flag);
1274 static int run_package_script(const char *package_name, const char *script_type)
1276 struct stat path_stat;
1280 script_path = xmalloc(strlen(package_name) + strlen(script_type) + 21);
1281 sprintf(script_path, "/var/lib/dpkg/info/%s.%s", package_name, script_type);
1283 /* If the file doesnt exist is isnt a fatal */
1284 if (lstat(script_path, &path_stat) < 0) {
1285 result = EXIT_SUCCESS;
1287 result = system(script_path);
1293 static const char *all_control_files[] = {"preinst", "postinst", "prerm", "postrm",
1294 "list", "md5sums", "shlibs", "conffiles", "config", "templates", NULL };
1296 static char **all_control_list(const char *package_name)
1298 unsigned short i = 0;
1299 char **remove_files;
1301 /* Create a list of all /var/lib/dpkg/info/<package> files */
1302 remove_files = xmalloc(sizeof(all_control_files));
1303 while (all_control_files[i]) {
1304 remove_files[i] = xmalloc(strlen(package_name) + strlen(all_control_files[i]) + 21);
1305 sprintf(remove_files[i], "/var/lib/dpkg/info/%s.%s", package_name, all_control_files[i]);
1308 remove_files[sizeof(all_control_files)/sizeof(char*) - 1] = NULL;
1310 return(remove_files);
1313 static void free_array(char **array)
1317 unsigned short i = 0;
1326 /* This function lists information on the installed packages. It loops through
1327 * the status_hashtable to retrieve the info. This results in smaller code than
1328 * scanning the status file. The resulting list, however, is unsorted.
1330 static void list_packages(void)
1334 printf(" Name Version\n");
1335 printf("+++-==============-==============\n");
1337 /* go through status hash, dereference package hash and finally strings */
1338 for (i=0; i<STATUS_HASH_PRIME+1; i++) {
1340 if (status_hashtable[i]) {
1341 const char *stat_str; /* status string */
1342 const char *name_str; /* package name */
1343 const char *vers_str; /* version */
1344 char s1, s2; /* status abbreviations */
1345 int spccnt; /* space count */
1348 stat_str = name_hashtable[status_hashtable[i]->status];
1349 name_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->name];
1350 vers_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->version];
1352 /* get abbreviation for status field 1 */
1353 s1 = stat_str[0] == 'i' ? 'i' : 'r';
1355 /* get abbreviation for status field 2 */
1356 for (j=0, spccnt=0; stat_str[j] && spccnt<2; j++) {
1357 if (stat_str[j] == ' ') spccnt++;
1361 /* print out the line formatted like Debian dpkg */
1362 printf("%c%c %-14s %s\n", s1, s2, name_str, vers_str);
1367 static void remove_package(const unsigned int package_num, int noisy)
1369 const char *package_name = name_hashtable[package_hashtable[package_num]->name];
1370 const char *package_version = name_hashtable[package_hashtable[package_num]->version];
1371 const unsigned int status_num = search_status_hashtable(package_name);
1372 const int package_name_length = strlen(package_name);
1373 char **remove_files;
1374 char **exclude_files;
1375 char list_name[package_name_length + 25];
1376 char conffile_name[package_name_length + 30];
1380 printf("Removing %s (%s) ...\n", package_name, package_version);
1382 /* run prerm script */
1383 return_value = run_package_script(package_name, "prerm");
1384 if (return_value == -1) {
1385 bb_error_msg_and_die("script failed, prerm failure");
1388 /* Create a list of files to remove, and a separate list of those to keep */
1389 sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
1390 remove_files = create_list(list_name);
1392 sprintf(conffile_name, "/var/lib/dpkg/info/%s.conffiles", package_name);
1393 exclude_files = create_list(conffile_name);
1395 /* Some directories cant be removed straight away, so do multiple passes */
1396 while (remove_file_array(remove_files, exclude_files));
1397 free_array(exclude_files);
1398 free_array(remove_files);
1400 /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep */
1401 exclude_files = xmalloc(sizeof(char*) * 3);
1402 exclude_files[0] = bb_xstrdup(conffile_name);
1403 exclude_files[1] = xmalloc(package_name_length + 27);
1404 sprintf(exclude_files[1], "/var/lib/dpkg/info/%s.postrm", package_name);
1405 exclude_files[2] = NULL;
1407 /* Create a list of all /var/lib/dpkg/info/<package> files */
1408 remove_files = all_control_list(package_name);
1410 remove_file_array(remove_files, exclude_files);
1411 free_array(remove_files);
1412 free_array(exclude_files);
1414 /* rename <package>.conffile to <package>.list */
1415 rename(conffile_name, list_name);
1417 /* Change package status */
1418 set_status(status_num, "config-files", 3);
1421 static void purge_package(const unsigned int package_num)
1423 const char *package_name = name_hashtable[package_hashtable[package_num]->name];
1424 const char *package_version = name_hashtable[package_hashtable[package_num]->version];
1425 const unsigned int status_num = search_status_hashtable(package_name);
1426 char **remove_files;
1427 char **exclude_files;
1428 char list_name[strlen(package_name) + 25];
1430 printf("Purging %s (%s) ...\n", package_name, package_version);
1432 /* run prerm script */
1433 if (run_package_script(package_name, "prerm") != 0) {
1434 bb_error_msg_and_die("script failed, prerm failure");
1437 /* Create a list of files to remove */
1438 sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
1439 remove_files = create_list(list_name);
1441 exclude_files = xmalloc(sizeof(char*));
1442 exclude_files[0] = NULL;
1444 /* Some directories cant be removed straight away, so do multiple passes */
1445 while (remove_file_array(remove_files, exclude_files));
1446 free_array(remove_files);
1448 /* Create a list of all /var/lib/dpkg/info/<package> files */
1449 remove_files = all_control_list(package_name);
1450 remove_file_array(remove_files, exclude_files);
1451 free_array(remove_files);
1452 free(exclude_files);
1454 /* run postrm script */
1455 if (run_package_script(package_name, "postrm") == -1) {
1456 bb_error_msg_and_die("postrm fialure.. set status to what?");
1459 /* Change package status */
1460 set_status(status_num, "not-installed", 3);
1463 static archive_handle_t *init_archive_deb_ar(const char *filename)
1465 archive_handle_t *ar_handle;
1467 /* Setup an ar archive handle that refers to the gzip sub archive */
1468 ar_handle = init_handle();
1469 ar_handle->filter = filter_accept_list_reassign;
1470 ar_handle->src_fd = bb_xopen(filename, O_RDONLY);
1475 static void init_archive_deb_control(archive_handle_t *ar_handle)
1477 archive_handle_t *tar_handle;
1479 /* Setup the tar archive handle */
1480 tar_handle = init_handle();
1481 tar_handle->src_fd = ar_handle->src_fd;
1483 /* We don't care about data.tar.* or debian-binary, just control.tar.* */
1484 #ifdef CONFIG_FEATURE_DEB_TAR_GZ
1485 ar_handle->accept = llist_add_to(NULL, "control.tar.gz");
1487 #ifdef CONFIG_FEATURE_DEB_TAR_BZ2
1488 ar_handle->accept = llist_add_to(ar_handle->accept, "control.tar.bz2");
1491 /* Assign the tar handle as a subarchive of the ar handle */
1492 ar_handle->sub_archive = tar_handle;
1497 static void init_archive_deb_data(archive_handle_t *ar_handle)
1499 archive_handle_t *tar_handle;
1501 /* Setup the tar archive handle */
1502 tar_handle = init_handle();
1503 tar_handle->src_fd = ar_handle->src_fd;
1505 /* We don't care about control.tar.* or debian-binary, just data.tar.* */
1506 #ifdef CONFIG_FEATURE_DEB_TAR_GZ
1507 ar_handle->accept = llist_add_to(NULL, "data.tar.gz");
1509 #ifdef CONFIG_FEATURE_DEB_TAR_BZ2
1510 ar_handle->accept = llist_add_to(ar_handle->accept, "data.tar.bz2");
1513 /* Assign the tar handle as a subarchive of the ar handle */
1514 ar_handle->sub_archive = tar_handle;
1519 static char *deb_extract_control_file_to_buffer(archive_handle_t *ar_handle, llist_t *myaccept)
1521 ar_handle->sub_archive->action_data = data_extract_to_buffer;
1522 ar_handle->sub_archive->accept = myaccept;
1523 ar_handle->sub_archive->filter = filter_accept_list;
1525 unpack_ar_archive(ar_handle);
1526 close(ar_handle->src_fd);
1528 return(ar_handle->sub_archive->buffer);
1531 static void data_extract_all_prefix(archive_handle_t *archive_handle)
1533 char *name_ptr = archive_handle->file_header->name;
1535 name_ptr += strspn(name_ptr, "./");
1536 if (name_ptr[0] != '\0') {
1537 archive_handle->file_header->name = xmalloc(strlen(archive_handle->buffer) + 2 + strlen(name_ptr));
1538 strcpy(archive_handle->file_header->name, archive_handle->buffer);
1539 strcat(archive_handle->file_header->name, name_ptr);
1540 data_extract_all(archive_handle);
1545 static void unpack_package(deb_file_t *deb_file)
1547 const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
1548 const unsigned int status_num = search_status_hashtable(package_name);
1549 const unsigned int status_package_num = status_hashtable[status_num]->package;
1551 archive_handle_t *archive_handle;
1553 llist_t *accept_list = NULL;
1556 /* If existing version, remove it first */
1557 if (strcmp(name_hashtable[get_status(status_num, 3)], "installed") == 0) {
1558 /* Package is already installed, remove old version first */
1559 printf("Preparing to replace %s %s (using %s) ...\n", package_name,
1560 name_hashtable[package_hashtable[status_package_num]->version],
1561 deb_file->filename);
1562 remove_package(status_package_num, 0);
1564 printf("Unpacking %s (from %s) ...\n", package_name, deb_file->filename);
1567 /* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */
1568 info_prefix = (char *) xmalloc(strlen(package_name) + 20 + 4 + 2);
1569 sprintf(info_prefix, "/var/lib/dpkg/info/%s.", package_name);
1570 archive_handle = init_archive_deb_ar(deb_file->filename);
1571 init_archive_deb_control(archive_handle);
1573 while(all_control_files[i]) {
1574 char *c = (char *) xmalloc(3 + bb_strlen(all_control_files[i]));
1575 sprintf(c, "./%s", all_control_files[i]);
1576 accept_list= llist_add_to(accept_list, c);
1579 archive_handle->sub_archive->accept = accept_list;
1580 archive_handle->sub_archive->filter = filter_accept_list;
1581 archive_handle->sub_archive->action_data = data_extract_all_prefix;
1582 archive_handle->sub_archive->buffer = info_prefix;
1583 archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
1584 unpack_ar_archive(archive_handle);
1586 /* Run the preinst prior to extracting */
1587 if (run_package_script(package_name, "preinst") != 0) {
1588 /* when preinst returns exit code != 0 then quit installation process */
1589 bb_error_msg_and_die("subprocess pre-installation script returned error.");
1592 /* Extract data.tar.gz to the root directory */
1593 archive_handle = init_archive_deb_ar(deb_file->filename);
1594 init_archive_deb_data(archive_handle);
1595 archive_handle->sub_archive->action_data = data_extract_all_prefix;
1596 archive_handle->sub_archive->buffer = "/";
1597 archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
1598 unpack_ar_archive(archive_handle);
1600 /* Create the list file */
1601 strcat(info_prefix, "list");
1602 out_stream = bb_xfopen(info_prefix, "w");
1603 while (archive_handle->sub_archive->passed) {
1604 /* the leading . has been stripped by data_extract_all_prefix already */
1605 fputs(archive_handle->sub_archive->passed->data, out_stream);
1606 fputc('\n', out_stream);
1607 archive_handle->sub_archive->passed = archive_handle->sub_archive->passed->link;
1612 set_status(status_num, "install", 1);
1613 set_status(status_num, "unpacked", 3);
1618 static void configure_package(deb_file_t *deb_file)
1620 const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
1621 const char *package_version = name_hashtable[package_hashtable[deb_file->package]->version];
1622 const int status_num = search_status_hashtable(package_name);
1624 printf("Setting up %s (%s) ...\n", package_name, package_version);
1626 /* Run the postinst script */
1627 if (run_package_script(package_name, "postinst") != 0) {
1628 /* TODO: handle failure gracefully */
1629 bb_error_msg_and_die("postrm failure.. set status to what?");
1631 /* Change status to reflect success */
1632 set_status(status_num, "install", 1);
1633 set_status(status_num, "installed", 3);
1636 int dpkg_main(int argc, char **argv)
1638 deb_file_t **deb_file = NULL;
1639 status_node_t *status_node;
1648 while ((opt = getopt(argc, argv, "CF:ilPru")) != -1) {
1650 case 'C': // equivalent to --configure in official dpkg
1651 dpkg_opt |= dpkg_opt_configure;
1652 dpkg_opt |= dpkg_opt_package_name;
1654 case 'F': // equivalent to --force in official dpkg
1655 if (strcmp(optarg, "depends") == 0) {
1656 dpkg_opt |= dpkg_opt_force_ignore_depends;
1660 dpkg_opt |= dpkg_opt_install;
1661 dpkg_opt |= dpkg_opt_filename;
1664 dpkg_opt |= dpkg_opt_list_installed;
1667 dpkg_opt |= dpkg_opt_purge;
1668 dpkg_opt |= dpkg_opt_package_name;
1671 dpkg_opt |= dpkg_opt_remove;
1672 dpkg_opt |= dpkg_opt_package_name;
1674 case 'u': /* Equivalent to --unpack in official dpkg */
1675 dpkg_opt |= dpkg_opt_unpack;
1676 dpkg_opt |= dpkg_opt_filename;
1682 /* check for non-otion argument if expected */
1683 if ((dpkg_opt == 0) || ((argc == optind) && !(dpkg_opt && dpkg_opt_list_installed))) {
1687 /* puts("(Reading database ... xxxxx files and directories installed.)"); */
1688 index_status_file("/var/lib/dpkg/status");
1690 /* if the list action was given print the installed packages and exit */
1691 if (dpkg_opt & dpkg_opt_list_installed) {
1693 return(EXIT_SUCCESS);
1696 /* Read arguments and store relevant info in structs */
1697 while (optind < argc) {
1698 /* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */
1699 deb_file = xrealloc(deb_file, sizeof(deb_file_t *) * (deb_count + 2));
1700 deb_file[deb_count] = (deb_file_t *) xmalloc(sizeof(deb_file_t));
1701 if (dpkg_opt & dpkg_opt_filename) {
1702 archive_handle_t *archive_handle;
1703 llist_t *control_list = NULL;
1705 /* Extract the control file */
1706 control_list = llist_add_to(NULL, "./control");
1707 archive_handle = init_archive_deb_ar(argv[optind]);
1708 init_archive_deb_control(archive_handle);
1709 deb_file[deb_count]->control_file = deb_extract_control_file_to_buffer(archive_handle, control_list);
1710 if (deb_file[deb_count]->control_file == NULL) {
1711 bb_error_msg_and_die("Couldnt extract control file");
1713 deb_file[deb_count]->filename = bb_xstrdup(argv[optind]);
1714 package_num = fill_package_struct(deb_file[deb_count]->control_file);
1716 if (package_num == -1) {
1717 bb_error_msg("Invalid control file in %s", argv[optind]);
1721 deb_file[deb_count]->package = (unsigned int) package_num;
1723 /* Add the package to the status hashtable */
1724 if ((dpkg_opt & dpkg_opt_unpack) || (dpkg_opt & dpkg_opt_install)) {
1725 /* Try and find a currently installed version of this package */
1726 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
1727 /* If no previous entry was found initialise a new entry */
1728 if ((status_hashtable[status_num] == NULL) ||
1729 (status_hashtable[status_num]->status == 0)) {
1730 status_node = (status_node_t *) xmalloc(sizeof(status_node_t));
1731 status_node->package = deb_file[deb_count]->package;
1732 /* reinstreq isnt changed to "ok" until the package control info
1733 * is written to the status file*/
1734 status_node->status = search_name_hashtable("install reinstreq not-installed");
1735 status_hashtable[status_num] = status_node;
1737 set_status(status_num, "install", 1);
1738 set_status(status_num, "reinstreq", 2);
1742 else if (dpkg_opt & dpkg_opt_package_name) {
1743 deb_file[deb_count]->filename = NULL;
1744 deb_file[deb_count]->control_file = NULL;
1745 deb_file[deb_count]->package = search_package_hashtable(
1746 search_name_hashtable(argv[optind]),
1747 search_name_hashtable("ANY"), VER_ANY);
1748 if (package_hashtable[deb_file[deb_count]->package] == NULL) {
1749 bb_error_msg_and_die("Package %s is uninstalled or unknown\n", argv[optind]);
1751 package_num = deb_file[deb_count]->package;
1752 status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
1753 state_status = get_status(status_num, 3);
1755 /* check package status is "installed" */
1756 if (dpkg_opt & dpkg_opt_remove) {
1757 if ((strcmp(name_hashtable[state_status], "not-installed") == 0) ||
1758 (strcmp(name_hashtable[state_status], "config-files") == 0)) {
1759 bb_error_msg_and_die("%s is already removed.", name_hashtable[package_hashtable[package_num]->name]);
1761 set_status(status_num, "deinstall", 1);
1763 else if (dpkg_opt & dpkg_opt_purge) {
1764 /* if package status is "conf-files" then its ok */
1765 if (strcmp(name_hashtable[state_status], "not-installed") == 0) {
1766 bb_error_msg_and_die("%s is already purged.", name_hashtable[package_hashtable[package_num]->name]);
1768 set_status(status_num, "purge", 1);
1774 deb_file[deb_count] = NULL;
1776 /* Check that the deb file arguments are installable */
1777 if ((dpkg_opt & dpkg_opt_force_ignore_depends) != dpkg_opt_force_ignore_depends) {
1778 if (!check_deps(deb_file, 0, deb_count)) {
1779 bb_error_msg_and_die("Dependency check failed");
1783 /* TODO: install or remove packages in the correct dependency order */
1784 for (i = 0; i < deb_count; i++) {
1785 /* Remove or purge packages */
1786 if (dpkg_opt & dpkg_opt_remove) {
1787 remove_package(deb_file[i]->package, 1);
1789 else if (dpkg_opt & dpkg_opt_purge) {
1790 purge_package(deb_file[i]->package);
1792 else if (dpkg_opt & dpkg_opt_unpack) {
1793 unpack_package(deb_file[i]);
1795 else if (dpkg_opt & dpkg_opt_install) {
1796 unpack_package(deb_file[i]);
1797 /* package is configured in second pass below */
1799 else if (dpkg_opt & dpkg_opt_configure) {
1800 configure_package(deb_file[i]);
1803 /* configure installed packages */
1804 if (dpkg_opt & dpkg_opt_install) {
1805 for (i = 0; i < deb_count; i++)
1806 configure_package(deb_file[i]);
1809 write_status_file(deb_file);
1811 for (i = 0; i < deb_count; i++) {
1812 free(deb_file[i]->control_file);
1813 free(deb_file[i]->filename);
1819 for (i = 0; i < NAME_HASH_PRIME; i++) {
1820 free(name_hashtable[i]);
1823 for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
1824 if (package_hashtable[i] != NULL) {
1825 free_package(package_hashtable[i]);
1829 for (i = 0; i < STATUS_HASH_PRIME; i++) {
1830 free(status_hashtable[i]);
1833 return(EXIT_SUCCESS);