1 /* vi: set sw=4 ts=4: */
3 * mini dpkg implementation for busybox.
4 * this is not meant as a replacement for dpkg
6 * written by glenn mcgrath with the help of others
7 * copyright (c) 2001 by glenn mcgrath
9 * started life as a busybox implementation of udpkg
11 * licensed under gplv2 or later, see file license in this tarball for details.
15 * known difference between busybox dpkg and the official dpkg that i don't
16 * consider important, its worth keeping a note of differences anyway, just to
17 * make it easier to maintain.
18 * - the first value for the confflile: field isnt placed on a new line.
19 * - when installing a package the status: field is placed at the end of the
20 * section, rather than just after the package: field.
22 * bugs that need to be fixed
23 * - (unknown, please let me know when you find any)
28 #include "unarchive.h"
30 /* note: if you vary hash_prime sizes be aware,
31 * 1) tweaking these will have a big effect on how much memory this program uses.
32 * 2) for computational efficiency these hash tables should be at least 20%
33 * larger than the maximum number of elements stored in it.
34 * 3) all _hash_prime's must be a prime number or chaos is assured, if your looking
35 * for a prime, try http://www.utm.edu/research/primes/lists/small/10000.txt
36 * 4) if you go bigger than 15 bits you may get into trouble (untested) as its
37 * sometimes cast to an unsigned, if you go to 16 bit you will overlap
38 * int's and chaos is assured, 16381 is the max prime for 14 bit field
41 /* NAME_HASH_PRIME, Stores package names and versions,
42 * I estimate it should be at least 50% bigger than PACKAGE_HASH_PRIME,
43 * as there a lot of duplicate version numbers */
44 #define NAME_HASH_PRIME 16381
46 /* PACKAGE_HASH_PRIME, Maximum number of unique packages,
47 * It must not be smaller than STATUS_HASH_PRIME,
48 * Currently only packages from status_hashtable are stored in here, but in
49 * future this may be used to store packages not only from a status file,
50 * but an available_hashtable, and even multiple packages files.
51 * Package can be stored more than once if they have different versions.
52 * e.g. The same package may have different versions in the status file
53 * and available file */
54 #define PACKAGE_HASH_PRIME 10007
55 typedef struct edge_s {
56 unsigned operator:4; /* was:3 */
58 unsigned name:16; /* was:14 */
59 unsigned version:16; /* was:14 */
62 typedef struct common_node_s {
63 unsigned name:16; /* was:14 */
64 unsigned version:16; /* was:14 */
65 unsigned num_of_edges:16; /* was:14 */
69 /* Currently it doesnt store packages that have state-status of not-installed
70 * So it only really has to be the size of the maximum number of packages
71 * likely to be installed at any one time, so there is a bit of leeway here */
72 #define STATUS_HASH_PRIME 8191
73 typedef struct status_node_s {
74 unsigned package:16; /* was:14 */ /* has to fit PACKAGE_HASH_PRIME */
75 unsigned status:16; /* was:14 */ /* has to fit STATUS_HASH_PRIME */
81 char *name_hashtable[NAME_HASH_PRIME + 1];
82 common_node_t *package_hashtable[PACKAGE_HASH_PRIME + 1];
83 status_node_t *status_hashtable[STATUS_HASH_PRIME + 1];
85 #define G (*ptr_to_globals)
86 #define name_hashtable (G.name_hashtable )
87 #define package_hashtable (G.package_hashtable)
88 #define status_hashtable (G.status_hashtable )
89 #define INIT_G() do { \
90 SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
94 /* Even numbers are for 'extras', like ored dependencies or null */
98 EDGE_OR_PRE_DEPENDS = 2,
105 EDGE_RECOMMENDS = 13,
118 typedef struct deb_file_s {
121 unsigned package:16; /* was:14 */
125 static void make_hash(const char *key, unsigned *start, unsigned *decrement, const int hash_prime)
127 unsigned long hash_num = key[0];
128 int len = strlen(key);
131 /* Maybe i should have uses a "proper" hashing algorithm here instead
132 * of making one up myself, seems to be working ok though. */
133 for (i = 1; i < len; i++) {
134 /* shifts the ascii based value and adds it to previous value
135 * shift amount is mod 24 because long int is 32 bit and data
136 * to be shifted is 8, don't want to shift data to where it has
138 hash_num += (key[i] + key[i-1]) << ((key[i] * i) % 24);
140 *start = (unsigned) hash_num % hash_prime;
141 *decrement = (unsigned) 1 + (hash_num % (hash_prime - 1));
144 /* this adds the key to the hash table */
145 static int search_name_hashtable(const char *key)
147 unsigned probe_address;
148 unsigned probe_decrement;
150 make_hash(key, &probe_address, &probe_decrement, NAME_HASH_PRIME);
151 while (name_hashtable[probe_address] != NULL) {
152 if (strcmp(name_hashtable[probe_address], key) == 0) {
153 return probe_address;
155 probe_address -= probe_decrement;
156 if ((int)probe_address < 0) {
157 probe_address += NAME_HASH_PRIME;
160 name_hashtable[probe_address] = xstrdup(key);
161 return probe_address;
164 /* this DOESNT add the key to the hashtable
165 * TODO make it consistent with search_name_hashtable
167 static unsigned search_status_hashtable(const char *key)
169 unsigned probe_address;
170 unsigned probe_decrement;
172 make_hash(key, &probe_address, &probe_decrement, STATUS_HASH_PRIME);
173 while (status_hashtable[probe_address] != NULL) {
174 if (strcmp(key, name_hashtable[package_hashtable[status_hashtable[probe_address]->package]->name]) == 0) {
177 probe_address -= probe_decrement;
178 if ((int)probe_address < 0) {
179 probe_address += STATUS_HASH_PRIME;
182 return probe_address;
185 /* Need to rethink version comparison, maybe the official dpkg has something i can use ? */
186 static int version_compare_part(const char *version1, const char *version2)
188 int upstream_len1 = 0;
189 int upstream_len2 = 0;
198 if (version1 == NULL) {
199 version1 = xstrdup("");
201 if (version2 == NULL) {
202 version2 = xstrdup("");
204 upstream_len1 = strlen(version1);
205 upstream_len2 = strlen(version2);
207 while ((len1 < upstream_len1) || (len2 < upstream_len2)) {
208 /* Compare non-digit section */
209 tmp_int = strcspn(&version1[len1], "0123456789");
210 name1_char = xstrndup(&version1[len1], tmp_int);
212 tmp_int = strcspn(&version2[len2], "0123456789");
213 name2_char = xstrndup(&version2[len2], tmp_int);
215 tmp_int = strcmp(name1_char, name2_char);
223 tmp_int = strspn(&version1[len1], "0123456789");
224 name1_char = xstrndup(&version1[len1], tmp_int);
226 tmp_int = strspn(&version2[len2], "0123456789");
227 name2_char = xstrndup(&version2[len2], tmp_int);
229 ver_num1 = atoi(name1_char);
230 ver_num2 = atoi(name2_char);
233 if (ver_num1 < ver_num2) {
236 if (ver_num1 > ver_num2) {
243 /* if ver1 < ver2 return -1,
244 * if ver1 = ver2 return 0,
245 * if ver1 > ver2 return 1,
247 static int version_compare(const unsigned ver1, const unsigned ver2)
249 char *ch_ver1 = name_hashtable[ver1];
250 char *ch_ver2 = name_hashtable[ver2];
253 char *deb_ver1, *deb_ver2;
254 char *ver1_ptr, *ver2_ptr;
260 if (ch_ver1[1] == ':') {
262 ver1_ptr = strchr(ch_ver1, ':') + 1;
267 if (ch_ver2[1] == ':') {
269 ver2_ptr = strchr(ch_ver2, ':') + 1;
274 if (epoch1 < epoch2) {
277 else if (epoch1 > epoch2) {
281 /* Compare upstream version */
282 upstream_ver1 = xstrdup(ver1_ptr);
283 upstream_ver2 = xstrdup(ver2_ptr);
285 /* Chop off debian version, and store for later use */
286 deb_ver1 = strrchr(upstream_ver1, '-');
287 deb_ver2 = strrchr(upstream_ver2, '-');
296 result = version_compare_part(upstream_ver1, upstream_ver2);
298 /* Compare debian versions */
299 result = version_compare_part(deb_ver1, deb_ver2);
306 static int test_version(const unsigned version1, const unsigned version2, const unsigned operator)
308 const int version_result = version_compare(version1, version2);
313 return (version_result == 0);
315 return (version_result < 0);
317 return (version_result <= 0);
319 return (version_result > 0);
321 return (version_result >= 0);
326 static int search_package_hashtable(const unsigned name, const unsigned version, const unsigned operator)
328 unsigned probe_address;
329 unsigned probe_decrement;
331 make_hash(name_hashtable[name], &probe_address, &probe_decrement, PACKAGE_HASH_PRIME);
332 while (package_hashtable[probe_address] != NULL) {
333 if (package_hashtable[probe_address]->name == name) {
334 if (operator == VER_ANY) {
335 return probe_address;
337 if (test_version(package_hashtable[probe_address]->version, version, operator)) {
338 return probe_address;
341 probe_address -= probe_decrement;
342 if ((int)probe_address < 0) {
343 probe_address += PACKAGE_HASH_PRIME;
346 return probe_address;
350 * This function searches through the entire package_hashtable looking
351 * for a package which provides "needle". It returns the index into
352 * the package_hashtable for the providing package.
354 * needle is the index into name_hashtable of the package we are
357 * start_at is the index in the package_hashtable to start looking
358 * at. If start_at is -1 then start at the beginning. This is to allow
359 * for repeated searches since more than one package might provide
362 * FIXME: I don't think this is very efficient, but I thought I'd keep
363 * it simple for now until it proves to be a problem.
365 static int search_for_provides(int needle, int start_at)
369 for (i = start_at + 1; i < PACKAGE_HASH_PRIME; i++) {
370 p = package_hashtable[i];
373 for (j = 0; j < p->num_of_edges; j++)
374 if (p->edge[j]->type == EDGE_PROVIDES && p->edge[j]->name == needle)
381 * Add an edge to a node
383 static void add_edge_to_node(common_node_t *node, edge_t *edge)
385 node->edge = xrealloc_vector(node->edge, 2, node->num_of_edges);
386 node->edge[node->num_of_edges++] = edge;
390 * Create one new node and one new edge for every dependency.
392 * Dependencies which contain multiple alternatives are represented as
393 * an EDGE_OR_PRE_DEPENDS or EDGE_OR_DEPENDS node, followed by a
394 * number of EDGE_PRE_DEPENDS or EDGE_DEPENDS nodes. The name field of
395 * the OR edge contains the full dependency string while the version
396 * field contains the number of EDGE nodes which follow as part of
399 static void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned edge_type)
401 char *line = xstrdup(whole_line);
403 char *line_ptr1 = NULL;
404 char *line_ptr2 = NULL;
412 field = strtok_r(line, ",", &line_ptr1);
414 /* skip leading spaces */
415 field += strspn(field, " ");
416 line2 = xstrdup(field);
417 field2 = strtok_r(line2, "|", &line_ptr2);
419 if ((edge_type == EDGE_DEPENDS || edge_type == EDGE_PRE_DEPENDS)
420 && (strcmp(field, field2) != 0)
422 or_edge = xzalloc(sizeof(edge_t));
423 or_edge->type = edge_type + 1;
424 or_edge->name = search_name_hashtable(field);
425 //or_edge->version = 0; // tracks the number of alternatives
426 add_edge_to_node(parent_node, or_edge);
430 edge = xmalloc(sizeof(edge_t));
431 edge->type = edge_type;
433 /* Skip any extra leading spaces */
434 field2 += strspn(field2, " ");
436 /* Get dependency version info */
437 version = strchr(field2, '(');
438 if (version == NULL) {
439 edge->operator = VER_ANY;
440 /* Get the versions hash number, adding it if the number isnt already in there */
441 edge->version = search_name_hashtable("ANY");
443 /* Skip leading ' ' or '(' */
444 version += strspn(version, " (");
445 /* Calculate length of any operator characters */
446 offset_ch = strspn(version, "<=>");
447 /* Determine operator */
449 if (strncmp(version, "=", offset_ch) == 0) {
450 edge->operator = VER_EQUAL;
451 } else if (strncmp(version, "<<", offset_ch) == 0) {
452 edge->operator = VER_LESS;
453 } else if (strncmp(version, "<=", offset_ch) == 0) {
454 edge->operator = VER_LESS_EQUAL;
455 } else if (strncmp(version, ">>", offset_ch) == 0) {
456 edge->operator = VER_MORE;
457 } else if (strncmp(version, ">=", offset_ch) == 0) {
458 edge->operator = VER_MORE_EQUAL;
460 bb_error_msg_and_die("illegal operator");
463 /* skip to start of version numbers */
464 version += offset_ch;
465 version += strspn(version, " ");
467 /* Truncate version at trailing ' ' or ')' */
468 version[strcspn(version, " )")] = '\0';
469 /* Get the versions hash number, adding it if the number isnt already in there */
470 edge->version = search_name_hashtable(version);
473 /* Get the dependency name */
474 field2[strcspn(field2, " (")] = '\0';
475 edge->name = search_name_hashtable(field2);
480 add_edge_to_node(parent_node, edge);
481 field2 = strtok_r(NULL, "|", &line_ptr2);
482 } while (field2 != NULL);
485 field = strtok_r(NULL, ",", &line_ptr1);
486 } while (field != NULL);
491 static void free_package(common_node_t *node)
495 for (i = 0; i < node->num_of_edges; i++) {
504 * Gets the next package field from package_buffer, seperated into the field name
505 * and field value, it returns the int offset to the first character of the next field
507 static int read_package_field(const char *package_buffer, char **field_name, char **field_value)
509 int offset_name_start = 0;
510 int offset_name_end = 0;
511 int offset_value_start = 0;
512 int offset_value_end = 0;
517 int exit_flag = FALSE;
519 if (package_buffer == NULL) {
525 next_offset = offset + 1;
526 switch (package_buffer[offset]) {
531 if (offset_name_end == 0) {
532 offset_name_end = offset;
533 offset_value_start = next_offset;
535 /* TODO: Name might still have trailing spaces if ':' isnt
536 * immediately after name */
539 /* TODO: The char next_offset may be out of bounds */
540 if (package_buffer[next_offset] != ' ') {
546 /* increment the value start point if its a just filler */
547 if (offset_name_start == offset) {
550 if (offset_value_start == offset) {
551 offset_value_start++;
556 /* Check that the names are valid */
557 offset_value_end = offset;
558 name_length = offset_name_end - offset_name_start;
559 value_length = offset_value_end - offset_value_start;
560 if (name_length == 0) {
563 if ((name_length > 0) && (value_length > 0)) {
567 /* If not valid, start fresh with next field */
569 offset_name_start = offset + 1;
571 offset_value_start = offset + 1;
572 offset_value_end = offset + 1;
579 *field_name = xstrndup(&package_buffer[offset_name_start], name_length);
582 if (value_length > 0) {
583 *field_value = xstrndup(&package_buffer[offset_value_start], value_length);
588 static unsigned fill_package_struct(char *control_buffer)
590 static const char field_names[] ALIGN1 =
591 "Package\0""Version\0"
592 "Pre-Depends\0""Depends\0""Replaces\0""Provides\0"
593 "Conflicts\0""Suggests\0""Recommends\0""Enhances\0";
595 common_node_t *new_node = xzalloc(sizeof(common_node_t));
600 int buffer_length = strlen(control_buffer);
602 new_node->version = search_name_hashtable("unknown");
603 while (field_start < buffer_length) {
606 field_start += read_package_field(&control_buffer[field_start],
607 &field_name, &field_value);
609 if (field_name == NULL) {
610 goto fill_package_struct_cleanup;
613 field_num = index_in_strings(field_names, field_name);
615 case 0: /* Package */
616 new_node->name = search_name_hashtable(field_value);
618 case 1: /* Version */
619 new_node->version = search_name_hashtable(field_value);
621 case 2: /* Pre-Depends */
622 add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
624 case 3: /* Depends */
625 add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
627 case 4: /* Replaces */
628 add_split_dependencies(new_node, field_value, EDGE_REPLACES);
630 case 5: /* Provides */
631 add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
633 case 6: /* Conflicts */
634 add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
636 case 7: /* Suggests */
637 add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
639 case 8: /* Recommends */
640 add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
642 case 9: /* Enhances */
643 add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
646 fill_package_struct_cleanup:
651 if (new_node->version == search_name_hashtable("unknown")) {
652 free_package(new_node);
655 num = search_package_hashtable(new_node->name, new_node->version, VER_EQUAL);
656 free_package(package_hashtable[num]);
657 package_hashtable[num] = new_node;
661 /* if num = 1, it returns the want status, 2 returns flag, 3 returns status */
662 static unsigned get_status(const unsigned status_node, const int num)
664 char *status_string = name_hashtable[status_hashtable[status_node]->status];
665 char *state_sub_string;
666 unsigned state_sub_num;
670 /* set tmp_string to point to the start of the word number */
671 for (i = 1; i < num; i++) {
672 /* skip past a word */
673 status_string += strcspn(status_string, " ");
674 /* skip past the separating spaces */
675 status_string += strspn(status_string, " ");
677 len = strcspn(status_string, " \n");
678 state_sub_string = xstrndup(status_string, len);
679 state_sub_num = search_name_hashtable(state_sub_string);
680 free(state_sub_string);
681 return state_sub_num;
684 static void set_status(const unsigned status_node_num, const char *new_value, const int position)
686 const unsigned new_value_len = strlen(new_value);
687 const unsigned new_value_num = search_name_hashtable(new_value);
688 unsigned want = get_status(status_node_num, 1);
689 unsigned flag = get_status(status_node_num, 2);
690 unsigned status = get_status(status_node_num, 3);
691 int want_len = strlen(name_hashtable[want]);
692 int flag_len = strlen(name_hashtable[flag]);
693 int status_len = strlen(name_hashtable[status]);
698 want = new_value_num;
699 want_len = new_value_len;
702 flag = new_value_num;
703 flag_len = new_value_len;
706 status = new_value_num;
707 status_len = new_value_len;
710 bb_error_msg_and_die("DEBUG ONLY: this shouldnt happen");
713 new_status = xasprintf("%s %s %s", name_hashtable[want], name_hashtable[flag], name_hashtable[status]);
714 status_hashtable[status_node_num]->status = search_name_hashtable(new_status);
718 static const char *describe_status(int status_num)
720 int status_want, status_state;
721 if (status_hashtable[status_num] == NULL || status_hashtable[status_num]->status == 0)
722 return "is not installed or flagged to be installed";
724 status_want = get_status(status_num, 1);
725 status_state = get_status(status_num, 3);
727 if (status_state == search_name_hashtable("installed")) {
728 if (status_want == search_name_hashtable("install"))
729 return "is installed";
730 if (status_want == search_name_hashtable("deinstall"))
731 return "is marked to be removed";
732 if (status_want == search_name_hashtable("purge"))
733 return "is marked to be purged";
735 if (status_want == search_name_hashtable("unknown"))
736 return "is in an indeterminate state";
737 if (status_want == search_name_hashtable("install"))
738 return "is marked to be installed";
740 return "is not installed or flagged to be installed";
743 static void index_status_file(const char *filename)
746 char *control_buffer;
748 status_node_t *status_node = NULL;
751 status_file = xfopen_for_read(filename);
752 while ((control_buffer = xmalloc_fgetline_str(status_file, "\n\n")) != NULL) {
753 const unsigned package_num = fill_package_struct(control_buffer);
754 if (package_num != -1) {
755 status_node = xmalloc(sizeof(status_node_t));
756 /* fill_package_struct doesnt handle the status field */
757 status_line = strstr(control_buffer, "Status:");
758 if (status_line != NULL) {
760 status_line += strspn(status_line, " \n\t");
761 status_line = xstrndup(status_line, strcspn(status_line, "\n"));
762 status_node->status = search_name_hashtable(status_line);
765 status_node->package = package_num;
766 status_num = search_status_hashtable(name_hashtable[package_hashtable[status_node->package]->name]);
767 status_hashtable[status_num] = status_node;
769 free(control_buffer);
774 static void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
780 start += read_package_field(&control_buffer[start], &name, &value);
784 if (strcmp(name, "Status") != 0) {
785 fprintf(new_status_file, "%s: %s\n", name, value);
790 /* This could do with a cleanup */
791 static void write_status_file(deb_file_t **deb_file)
793 FILE *old_status_file = xfopen_for_read("/var/lib/dpkg/status");
794 FILE *new_status_file = xfopen_for_write("/var/lib/dpkg/status.udeb");
796 char *status_from_file;
797 char *control_buffer = NULL;
804 /* Update previously known packages */
805 while ((control_buffer = xmalloc_fgetline_str(old_status_file, "\n\n")) != NULL) {
806 tmp_string = strstr(control_buffer, "Package:");
807 if (tmp_string == NULL) {
812 tmp_string += strspn(tmp_string, " \n\t");
813 package_name = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
815 tmp_string = strstr(control_buffer, "Status:");
816 if (tmp_string != NULL) {
817 /* Seperate the status value from the control buffer */
819 tmp_string += strspn(tmp_string, " \n\t");
820 status_from_file = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
822 status_from_file = NULL;
825 /* Find this package in the status hashtable */
826 status_num = search_status_hashtable(package_name);
827 if (status_hashtable[status_num] != NULL) {
828 const char *status_from_hashtable = name_hashtable[status_hashtable[status_num]->status];
829 if (strcmp(status_from_file, status_from_hashtable) != 0) {
830 /* New status isnt exactly the same as old status */
831 const int state_status = get_status(status_num, 3);
832 if ((strcmp("installed", name_hashtable[state_status]) == 0)
833 || (strcmp("unpacked", name_hashtable[state_status]) == 0)
835 /* We need to add the control file from the package */
837 while (deb_file[i] != NULL) {
838 if (strcmp(package_name, name_hashtable[package_hashtable[deb_file[i]->package]->name]) == 0) {
839 /* Write a status file entry with a modified status */
840 /* remove trailing \n's */
841 write_buffer_no_status(new_status_file, deb_file[i]->control_file);
842 set_status(status_num, "ok", 2);
843 fprintf(new_status_file, "Status: %s\n\n",
844 name_hashtable[status_hashtable[status_num]->status]);
850 /* This is temperary, debugging only */
851 if (deb_file[i] == NULL) {
852 bb_error_msg_and_die("ALERT: cannot find a control file, "
853 "your status file may be broken, status may be "
854 "incorrect for %s", package_name);
857 else if (strcmp("not-installed", name_hashtable[state_status]) == 0) {
858 /* Only write the Package, Status, Priority and Section lines */
859 fprintf(new_status_file, "Package: %s\n", package_name);
860 fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
865 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
866 if (field_name == NULL) {
869 if ((strcmp(field_name, "Priority") == 0) ||
870 (strcmp(field_name, "Section") == 0)) {
871 fprintf(new_status_file, "%s: %s\n", field_name, field_value);
875 fputs("\n", new_status_file);
877 else if (strcmp("config-files", name_hashtable[state_status]) == 0) {
878 /* only change the status line */
882 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
883 if (field_name == NULL) {
886 /* Setup start point for next field */
887 if (strcmp(field_name, "Status") == 0) {
888 fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
890 fprintf(new_status_file, "%s: %s\n", field_name, field_value);
894 fputs("\n", new_status_file);
898 /* If the package from the status file wasnt handle above, do it now*/
900 fprintf(new_status_file, "%s\n\n", control_buffer);
903 free(status_from_file);
905 free(control_buffer);
908 /* Write any new packages */
909 for (i = 0; deb_file[i] != NULL; i++) {
910 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[i]->package]->name]);
911 if (strcmp("reinstreq", name_hashtable[get_status(status_num, 2)]) == 0) {
912 write_buffer_no_status(new_status_file, deb_file[i]->control_file);
913 set_status(status_num, "ok", 2);
914 fprintf(new_status_file, "Status: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
917 fclose(old_status_file);
918 fclose(new_status_file);
920 /* Create a separate backfile to dpkg */
921 if (rename("/var/lib/dpkg/status", "/var/lib/dpkg/status.udeb.bak") == -1) {
923 bb_error_msg_and_die("cannot create backup status file");
924 /* Its ok if renaming the status file fails because status
925 * file doesnt exist, maybe we are starting from scratch */
926 bb_error_msg("no status file found, creating new one");
929 xrename("/var/lib/dpkg/status.udeb", "/var/lib/dpkg/status");
932 /* This function returns TRUE if the given package can satisfy a
933 * dependency of type depend_type.
935 * A pre-depends is satisfied only if a package is already installed,
936 * which a regular depends can be satisfied by a package which we want
939 static int package_satisfies_dependency(int package, int depend_type)
941 int status_num = search_status_hashtable(name_hashtable[package_hashtable[package]->name]);
943 /* status could be unknown if package is a pure virtual
944 * provides which cannot satisfy any dependency by itself.
946 if (status_hashtable[status_num] == NULL)
949 switch (depend_type) {
950 case EDGE_PRE_DEPENDS: return get_status(status_num, 3) == search_name_hashtable("installed");
951 case EDGE_DEPENDS: return get_status(status_num, 1) == search_name_hashtable("install");
956 static int check_deps(deb_file_t **deb_file, int deb_start /*, int dep_max_count - ?? */)
958 int *conflicts = NULL;
959 int conflicts_num = 0;
963 /* Check for conflicts
964 * TODO: TEST if conflicts with other packages to be installed
966 * Add install packages and the packages they provide
967 * to the list of files to check conflicts for
970 /* Create array of package numbers to check against
971 * installed package for conflicts*/
972 while (deb_file[i] != NULL) {
973 const unsigned package_num = deb_file[i]->package;
974 conflicts = xrealloc_vector(conflicts, 2, conflicts_num);
975 conflicts[conflicts_num] = package_num;
977 /* add provides to conflicts list */
978 for (j = 0; j < package_hashtable[package_num]->num_of_edges; j++) {
979 if (package_hashtable[package_num]->edge[j]->type == EDGE_PROVIDES) {
980 const int conflicts_package_num = search_package_hashtable(
981 package_hashtable[package_num]->edge[j]->name,
982 package_hashtable[package_num]->edge[j]->version,
983 package_hashtable[package_num]->edge[j]->operator);
984 if (package_hashtable[conflicts_package_num] == NULL) {
985 /* create a new package */
986 common_node_t *new_node = xzalloc(sizeof(common_node_t));
987 new_node->name = package_hashtable[package_num]->edge[j]->name;
988 new_node->version = package_hashtable[package_num]->edge[j]->version;
989 package_hashtable[conflicts_package_num] = new_node;
991 conflicts = xrealloc_vector(conflicts, 2, conflicts_num);
992 conflicts[conflicts_num] = conflicts_package_num;
999 /* Check conflicts */
1001 while (deb_file[i] != NULL) {
1002 const common_node_t *package_node = package_hashtable[deb_file[i]->package];
1004 status_num = search_status_hashtable(name_hashtable[package_node->name]);
1006 if (get_status(status_num, 3) == search_name_hashtable("installed")) {
1011 for (j = 0; j < package_node->num_of_edges; j++) {
1012 const edge_t *package_edge = package_node->edge[j];
1014 if (package_edge->type == EDGE_CONFLICTS) {
1015 const unsigned package_num =
1016 search_package_hashtable(package_edge->name,
1017 package_edge->version,
1018 package_edge->operator);
1020 if (package_hashtable[package_num] != NULL) {
1021 status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
1023 if (get_status(status_num, 1) == search_name_hashtable("install")) {
1024 result = test_version(package_hashtable[deb_file[i]->package]->version,
1025 package_edge->version, package_edge->operator);
1030 bb_error_msg_and_die("package %s conflicts with %s",
1031 name_hashtable[package_node->name],
1032 name_hashtable[package_edge->name]);
1040 /* Check dependendcies */
1041 for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
1043 int number_of_alternatives = 0;
1044 const edge_t * root_of_alternatives = NULL;
1045 const common_node_t *package_node = package_hashtable[i];
1047 /* If the package node does not exist then this
1048 * package is a virtual one. In which case there are
1049 * no dependencies to check.
1051 if (package_node == NULL) continue;
1053 status_num = search_status_hashtable(name_hashtable[package_node->name]);
1055 /* If there is no status then this package is a
1056 * virtual one provided by something else. In which
1057 * case there are no dependencies to check.
1059 if (status_hashtable[status_num] == NULL) continue;
1061 /* If we don't want this package installed then we may
1062 * as well ignore it's dependencies.
1064 if (get_status(status_num, 1) != search_name_hashtable("install")) {
1068 /* This code is tested only for EDGE_DEPENDS, since I
1069 * have no suitable pre-depends available. There is no
1070 * reason that it shouldn't work though :-)
1072 for (j = 0; j < package_node->num_of_edges; j++) {
1073 const edge_t *package_edge = package_node->edge[j];
1074 unsigned package_num;
1076 if (package_edge->type == EDGE_OR_PRE_DEPENDS
1077 || package_edge->type == EDGE_OR_DEPENDS
1078 ) { /* start an EDGE_OR_ list */
1079 number_of_alternatives = package_edge->version;
1080 root_of_alternatives = package_edge;
1083 if (number_of_alternatives == 0) { /* not in the middle of an EDGE_OR_ list */
1084 number_of_alternatives = 1;
1085 root_of_alternatives = NULL;
1088 package_num = search_package_hashtable(package_edge->name, package_edge->version, package_edge->operator);
1090 if (package_edge->type == EDGE_PRE_DEPENDS ||
1091 package_edge->type == EDGE_DEPENDS) {
1095 /* If we are inside an alternative then check
1096 * this edge is the right type.
1098 * EDGE_DEPENDS == OR_DEPENDS -1
1099 * EDGE_PRE_DEPENDS == OR_PRE_DEPENDS -1
1101 if (root_of_alternatives && package_edge->type != root_of_alternatives->type - 1)
1102 bb_error_msg_and_die("fatal error, package dependencies corrupt: %d != %d - 1",
1103 package_edge->type, root_of_alternatives->type);
1105 if (package_hashtable[package_num] != NULL)
1106 result = !package_satisfies_dependency(package_num, package_edge->type);
1108 if (result) { /* check for other package which provide what we are looking for */
1111 while ((provider = search_for_provides(package_edge->name, provider)) > -1) {
1112 if (package_hashtable[provider] == NULL) {
1113 puts("Have a provider but no package information for it");
1116 result = !package_satisfies_dependency(provider, package_edge->type);
1123 /* It must be already installed, or to be installed */
1124 number_of_alternatives--;
1125 if (result && number_of_alternatives == 0) {
1126 if (root_of_alternatives)
1127 bb_error_msg_and_die(
1128 "package %s %sdepends on %s, "
1129 "which cannot be satisfied",
1130 name_hashtable[package_node->name],
1131 package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1132 name_hashtable[root_of_alternatives->name]);
1133 bb_error_msg_and_die(
1134 "package %s %sdepends on %s, which %s\n",
1135 name_hashtable[package_node->name],
1136 package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1137 name_hashtable[package_edge->name],
1138 describe_status(status_num));
1140 if (result == 0 && number_of_alternatives) {
1141 /* we've found a package which
1142 * satisfies the dependency,
1143 * so skip over the rest of
1146 j += number_of_alternatives;
1147 number_of_alternatives = 0;
1156 static char **create_list(const char *filename)
1163 /* don't use [xw]fopen here, handle error ourself */
1164 list_stream = fopen_for_read(filename);
1165 if (list_stream == NULL) {
1171 while ((line = xmalloc_fgetline(list_stream)) != NULL) {
1172 //TODO: zeroing xrealloc_vector?
1173 file_list = xrealloc_vector(file_list, 2, count);
1174 file_list[count++] = line;
1175 file_list[count] = NULL;
1177 fclose(list_stream);
1182 /* maybe i should try and hook this into remove_file.c somehow */
1183 static int remove_file_array(char **remove_names, char **exclude_names)
1185 struct stat path_stat;
1186 int remove_flag = 1; /* not removed anything yet */
1189 if (remove_names == NULL) {
1192 for (i = 0; remove_names[i] != NULL; i++) {
1193 if (exclude_names != NULL) {
1194 for (j = 0; exclude_names[j] != NULL; j++) {
1195 if (strcmp(remove_names[i], exclude_names[j]) == 0) {
1200 /* TODO: why we are checking lstat? we can just try rm/rmdir */
1201 if (lstat(remove_names[i], &path_stat) < 0) {
1204 if (S_ISDIR(path_stat.st_mode)) {
1205 remove_flag &= rmdir(remove_names[i]); /* 0 if no error */
1207 remove_flag &= unlink(remove_names[i]); /* 0 if no error */
1212 return (remove_flag == 0);
1215 static void run_package_script_or_die(const char *package_name, const char *script_type)
1220 script_path = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, script_type);
1222 /* If the file doesnt exist is isnt fatal */
1223 result = access(script_path, F_OK) ? EXIT_SUCCESS : system(script_path);
1226 bb_error_msg_and_die("%s failed, exit code %d", script_type, result);
1230 The policy manual defines what scripts get called when and with
1231 what arguments. I realize that busybox does not support all of
1232 these scenarios, but it does support some of them; it does not,
1233 however, run them with any parameters in run_package_script_or_die().
1234 Here are the scripts:
1237 preinst install <old_version>
1238 preinst upgrade <old_version>
1239 preinst abort_upgrade <new_version>
1240 postinst configure <most_recent_version>
1241 postinst abort-upgade <new_version>
1242 postinst abort-remove
1243 postinst abort-remove in-favour <package> <version>
1244 postinst abort-deconfigure in-favor <failed_install_package> removing <conflicting_package> <version>
1246 prerm upgrade <new_version>
1247 prerm failed-upgrade <old_version>
1248 prerm remove in-favor <package> <new_version>
1249 prerm deconfigure in-favour <package> <version> removing <package> <version>
1252 postrm upgrade <new_version>
1253 postrm failed-upgrade <old_version>
1254 postrm abort-install
1255 postrm abort-install <old_version>
1256 postrm abort-upgrade <old_version>
1257 postrm disappear <overwriter> <version>
1259 static const char *const all_control_files[] = {
1260 "preinst", "postinst", "prerm", "postrm",
1261 "list", "md5sums", "shlibs", "conffiles",
1262 "config", "templates"
1265 static char **all_control_list(const char *package_name)
1268 char **remove_files;
1270 /* Create a list of all /var/lib/dpkg/info/<package> files */
1271 remove_files = xzalloc(sizeof(all_control_files) + sizeof(char*));
1272 while (i < ARRAY_SIZE(all_control_files)) {
1273 remove_files[i] = xasprintf("/var/lib/dpkg/info/%s.%s",
1274 package_name, all_control_files[i]);
1278 return remove_files;
1281 static void free_array(char **array)
1293 /* This function lists information on the installed packages. It loops through
1294 * the status_hashtable to retrieve the info. This results in smaller code than
1295 * scanning the status file. The resulting list, however, is unsorted.
1297 static void list_packages(void)
1301 puts(" Name Version");
1302 puts("+++-==============-==============");
1304 /* go through status hash, dereference package hash and finally strings */
1305 for (i = 0; i < STATUS_HASH_PRIME+1; i++) {
1306 if (status_hashtable[i]) {
1307 const char *stat_str; /* status string */
1308 const char *name_str; /* package name */
1309 const char *vers_str; /* version */
1310 char s1, s2; /* status abbreviations */
1311 int spccnt; /* space count */
1314 stat_str = name_hashtable[status_hashtable[i]->status];
1315 name_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->name];
1316 vers_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->version];
1318 /* get abbreviation for status field 1 */
1319 s1 = stat_str[0] == 'i' ? 'i' : 'r';
1321 /* get abbreviation for status field 2 */
1322 for (j = 0, spccnt = 0; stat_str[j] && spccnt < 2; j++) {
1323 if (stat_str[j] == ' ') spccnt++;
1327 /* print out the line formatted like Debian dpkg */
1328 printf("%c%c %-14s %s\n", s1, s2, name_str, vers_str);
1333 static void remove_package(const unsigned package_num, int noisy)
1335 const char *package_name = name_hashtable[package_hashtable[package_num]->name];
1336 const char *package_version = name_hashtable[package_hashtable[package_num]->version];
1337 const unsigned status_num = search_status_hashtable(package_name);
1338 const int package_name_length = strlen(package_name);
1339 char **remove_files;
1340 char **exclude_files;
1341 char list_name[package_name_length + 25];
1342 char conffile_name[package_name_length + 30];
1345 printf("Removing %s (%s)...\n", package_name, package_version);
1347 /* Run prerm script */
1348 run_package_script_or_die(package_name, "prerm");
1350 /* Create a list of files to remove, and a separate list of those to keep */
1351 sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list");
1352 remove_files = create_list(list_name);
1354 sprintf(conffile_name, "/var/lib/dpkg/info/%s.%s", package_name, "conffiles");
1355 exclude_files = create_list(conffile_name);
1357 /* Some directories can't be removed straight away, so do multiple passes */
1358 while (remove_file_array(remove_files, exclude_files))
1360 free_array(exclude_files);
1361 free_array(remove_files);
1363 /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep */
1364 exclude_files = xzalloc(sizeof(char*) * 3);
1365 exclude_files[0] = xstrdup(conffile_name);
1366 exclude_files[1] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "postrm");
1368 /* Create a list of all /var/lib/dpkg/info/<package> files */
1369 remove_files = all_control_list(package_name);
1371 remove_file_array(remove_files, exclude_files);
1372 free_array(remove_files);
1373 free_array(exclude_files);
1375 /* rename <package>.conffiles to <package>.list
1376 * The conffiles control file isn't required in Debian packages, so don't
1377 * error out if it's missing. */
1378 rename(conffile_name, list_name);
1380 /* Change package status */
1381 set_status(status_num, "config-files", 3);
1384 static void purge_package(const unsigned package_num)
1386 const char *package_name = name_hashtable[package_hashtable[package_num]->name];
1387 const char *package_version = name_hashtable[package_hashtable[package_num]->version];
1388 const unsigned status_num = search_status_hashtable(package_name);
1389 char **remove_files;
1390 char **exclude_files;
1391 char list_name[strlen(package_name) + 25];
1393 printf("Purging %s (%s)...\n", package_name, package_version);
1395 /* Run prerm script */
1396 run_package_script_or_die(package_name, "prerm");
1398 /* Create a list of files to remove */
1399 sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list");
1400 remove_files = create_list(list_name);
1402 exclude_files = xzalloc(sizeof(char*));
1404 /* Some directories cant be removed straight away, so do multiple passes */
1405 while (remove_file_array(remove_files, exclude_files)) /* repeat */;
1406 free_array(remove_files);
1408 /* Create a list of all /var/lib/dpkg/info/<package> files */
1409 remove_files = all_control_list(package_name);
1410 remove_file_array(remove_files, exclude_files);
1411 free_array(remove_files);
1412 free(exclude_files);
1414 /* Run postrm script */
1415 run_package_script_or_die(package_name, "postrm");
1417 /* Change package status */
1418 set_status(status_num, "not-installed", 3);
1421 static archive_handle_t *init_archive_deb_ar(const char *filename)
1423 archive_handle_t *ar_handle;
1425 /* Setup an ar archive handle that refers to the gzip sub archive */
1426 ar_handle = init_handle();
1427 ar_handle->filter = filter_accept_list_reassign;
1428 ar_handle->src_fd = xopen(filename, O_RDONLY);
1433 static void init_archive_deb_control(archive_handle_t *ar_handle)
1435 archive_handle_t *tar_handle;
1437 /* Setup the tar archive handle */
1438 tar_handle = init_handle();
1439 tar_handle->src_fd = ar_handle->src_fd;
1441 /* We don't care about data.tar.* or debian-binary, just control.tar.* */
1442 #if ENABLE_FEATURE_DEB_TAR_GZ
1443 llist_add_to(&(ar_handle->accept), (char*)"control.tar.gz");
1445 #if ENABLE_FEATURE_DEB_TAR_BZ2
1446 llist_add_to(&(ar_handle->accept), (char*)"control.tar.bz2");
1449 /* Assign the tar handle as a subarchive of the ar handle */
1450 ar_handle->sub_archive = tar_handle;
1453 static void init_archive_deb_data(archive_handle_t *ar_handle)
1455 archive_handle_t *tar_handle;
1457 /* Setup the tar archive handle */
1458 tar_handle = init_handle();
1459 tar_handle->src_fd = ar_handle->src_fd;
1461 /* We don't care about control.tar.* or debian-binary, just data.tar.* */
1462 #if ENABLE_FEATURE_DEB_TAR_GZ
1463 llist_add_to(&(ar_handle->accept), (char*)"data.tar.gz");
1465 #if ENABLE_FEATURE_DEB_TAR_BZ2
1466 llist_add_to(&(ar_handle->accept), (char*)"data.tar.bz2");
1469 /* Assign the tar handle as a subarchive of the ar handle */
1470 ar_handle->sub_archive = tar_handle;
1473 static char *deb_extract_control_file_to_buffer(archive_handle_t *ar_handle, llist_t *myaccept)
1475 ar_handle->sub_archive->action_data = data_extract_to_buffer;
1476 ar_handle->sub_archive->accept = myaccept;
1477 ar_handle->sub_archive->filter = filter_accept_list;
1479 unpack_ar_archive(ar_handle);
1480 close(ar_handle->src_fd);
1482 return ar_handle->sub_archive->buffer;
1485 static void FAST_FUNC data_extract_all_prefix(archive_handle_t *archive_handle)
1487 char *name_ptr = archive_handle->file_header->name;
1489 name_ptr += strspn(name_ptr, "./");
1490 if (name_ptr[0] != '\0') {
1491 archive_handle->file_header->name = xasprintf("%s%s", archive_handle->buffer, name_ptr);
1492 data_extract_all(archive_handle);
1496 static void unpack_package(deb_file_t *deb_file)
1498 const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
1499 const unsigned status_num = search_status_hashtable(package_name);
1500 const unsigned status_package_num = status_hashtable[status_num]->package;
1502 char *list_filename;
1503 archive_handle_t *archive_handle;
1505 llist_t *accept_list;
1508 /* If existing version, remove it first */
1509 if (strcmp(name_hashtable[get_status(status_num, 3)], "installed") == 0) {
1510 /* Package is already installed, remove old version first */
1511 printf("Preparing to replace %s %s (using %s)...\n", package_name,
1512 name_hashtable[package_hashtable[status_package_num]->version],
1513 deb_file->filename);
1514 remove_package(status_package_num, 0);
1516 printf("Unpacking %s (from %s)...\n", package_name, deb_file->filename);
1519 /* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */
1520 info_prefix = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "");
1521 archive_handle = init_archive_deb_ar(deb_file->filename);
1522 init_archive_deb_control(archive_handle);
1526 while (i < ARRAY_SIZE(all_control_files)) {
1527 char *c = xasprintf("./%s", all_control_files[i]);
1528 llist_add_to(&accept_list, c);
1531 archive_handle->sub_archive->accept = accept_list;
1532 archive_handle->sub_archive->filter = filter_accept_list;
1533 archive_handle->sub_archive->action_data = data_extract_all_prefix;
1534 archive_handle->sub_archive->buffer = info_prefix;
1535 archive_handle->sub_archive->ah_flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
1536 unpack_ar_archive(archive_handle);
1538 /* Run the preinst prior to extracting */
1539 run_package_script_or_die(package_name, "preinst");
1541 /* Extract data.tar.gz to the root directory */
1542 archive_handle = init_archive_deb_ar(deb_file->filename);
1543 init_archive_deb_data(archive_handle);
1544 archive_handle->sub_archive->action_data = data_extract_all_prefix;
1545 archive_handle->sub_archive->buffer = (char*)"/"; /* huh? */
1546 archive_handle->sub_archive->ah_flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
1547 unpack_ar_archive(archive_handle);
1549 /* Create the list file */
1550 list_filename = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "list");
1551 out_stream = xfopen_for_write(list_filename);
1552 while (archive_handle->sub_archive->passed) {
1553 /* the leading . has been stripped by data_extract_all_prefix already */
1554 fputs(archive_handle->sub_archive->passed->data, out_stream);
1555 fputc('\n', out_stream);
1556 archive_handle->sub_archive->passed = archive_handle->sub_archive->passed->link;
1561 set_status(status_num, "install", 1);
1562 set_status(status_num, "unpacked", 3);
1565 free(list_filename);
1568 static void configure_package(deb_file_t *deb_file)
1570 const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
1571 const char *package_version = name_hashtable[package_hashtable[deb_file->package]->version];
1572 const int status_num = search_status_hashtable(package_name);
1574 printf("Setting up %s (%s)...\n", package_name, package_version);
1576 /* Run the postinst script */
1577 /* TODO: handle failure gracefully */
1578 run_package_script_or_die(package_name, "postinst");
1580 /* Change status to reflect success */
1581 set_status(status_num, "install", 1);
1582 set_status(status_num, "installed", 3);
1585 int dpkg_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
1586 int dpkg_main(int argc UNUSED_PARAM, char **argv)
1588 deb_file_t **deb_file = NULL;
1589 status_node_t *status_node;
1598 OPT_configure = 0x1,
1599 OPT_force_ignore_depends = 0x2,
1601 OPT_list_installed = 0x8,
1609 opt = getopt32(argv, "CF:ilPru", &str_f);
1610 //if (opt & OPT_configure) ... // -C
1611 if (opt & OPT_force_ignore_depends) { // -F (--force in official dpkg)
1612 if (strcmp(str_f, "depends"))
1613 opt &= ~OPT_force_ignore_depends;
1615 //if (opt & OPT_install) ... // -i
1616 //if (opt & OPT_list_installed) ... // -l
1617 //if (opt & OPT_purge) ... // -P
1618 //if (opt & OPT_remove) ... // -r
1619 //if (opt & OPT_unpack) ... // -u (--unpack in official dpkg)
1621 /* check for non-option argument if expected */
1622 if (!opt || (!argv[0] && !(opt && OPT_list_installed)))
1625 /* puts("(Reading database ... xxxxx files and directories installed.)"); */
1626 index_status_file("/var/lib/dpkg/status");
1628 /* if the list action was given print the installed packages and exit */
1629 if (opt & OPT_list_installed) {
1631 return EXIT_SUCCESS;
1634 /* Read arguments and store relevant info in structs */
1636 /* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */
1637 deb_file = xrealloc_vector(deb_file, 2, deb_count);
1638 deb_file[deb_count] = xzalloc(sizeof(deb_file[0][0]));
1639 if (opt & (OPT_install | OPT_unpack)) {
1640 /* -i/-u: require filename */
1641 archive_handle_t *archive_handle;
1642 llist_t *control_list = NULL;
1644 /* Extract the control file */
1645 llist_add_to(&control_list, (char*)"./control");
1646 archive_handle = init_archive_deb_ar(argv[0]);
1647 init_archive_deb_control(archive_handle);
1648 deb_file[deb_count]->control_file = deb_extract_control_file_to_buffer(archive_handle, control_list);
1649 if (deb_file[deb_count]->control_file == NULL) {
1650 bb_error_msg_and_die("cannot extract control file");
1652 deb_file[deb_count]->filename = xstrdup(argv[0]);
1653 package_num = fill_package_struct(deb_file[deb_count]->control_file);
1655 if (package_num == -1) {
1656 bb_error_msg("invalid control file in %s", argv[0]);
1660 deb_file[deb_count]->package = (unsigned) package_num;
1662 /* Add the package to the status hashtable */
1663 if (opt & (OPT_unpack | OPT_install)) {
1664 /* Try and find a currently installed version of this package */
1665 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
1666 /* If no previous entry was found initialise a new entry */
1667 if (status_hashtable[status_num] == NULL
1668 || status_hashtable[status_num]->status == 0
1670 status_node = xmalloc(sizeof(status_node_t));
1671 status_node->package = deb_file[deb_count]->package;
1672 /* reinstreq isnt changed to "ok" until the package control info
1673 * is written to the status file*/
1674 status_node->status = search_name_hashtable("install reinstreq not-installed");
1675 status_hashtable[status_num] = status_node;
1677 set_status(status_num, "install", 1);
1678 set_status(status_num, "reinstreq", 2);
1681 } else if (opt & (OPT_configure | OPT_purge | OPT_remove)) {
1682 /* -C/-p/-r: require package name */
1683 deb_file[deb_count]->package = search_package_hashtable(
1684 search_name_hashtable(argv[0]),
1685 search_name_hashtable("ANY"), VER_ANY);
1686 if (package_hashtable[deb_file[deb_count]->package] == NULL) {
1687 bb_error_msg_and_die("package %s is uninstalled or unknown", argv[0]);
1689 package_num = deb_file[deb_count]->package;
1690 status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
1691 state_status = get_status(status_num, 3);
1693 /* check package status is "installed" */
1694 if (opt & OPT_remove) {
1695 if (strcmp(name_hashtable[state_status], "not-installed") == 0
1696 || strcmp(name_hashtable[state_status], "config-files") == 0
1698 bb_error_msg_and_die("%s is already removed", name_hashtable[package_hashtable[package_num]->name]);
1700 set_status(status_num, "deinstall", 1);
1701 } else if (opt & OPT_purge) {
1702 /* if package status is "conf-files" then its ok */
1703 if (strcmp(name_hashtable[state_status], "not-installed") == 0) {
1704 bb_error_msg_and_die("%s is already purged", name_hashtable[package_hashtable[package_num]->name]);
1706 set_status(status_num, "purge", 1);
1713 bb_error_msg_and_die("no package files specified");
1714 deb_file[deb_count] = NULL;
1716 /* Check that the deb file arguments are installable */
1717 if (!(opt & OPT_force_ignore_depends)) {
1718 if (!check_deps(deb_file, 0 /*, deb_count*/)) {
1719 bb_error_msg_and_die("dependency check failed");
1723 /* TODO: install or remove packages in the correct dependency order */
1724 for (i = 0; i < deb_count; i++) {
1725 /* Remove or purge packages */
1726 if (opt & OPT_remove) {
1727 remove_package(deb_file[i]->package, 1);
1729 else if (opt & OPT_purge) {
1730 purge_package(deb_file[i]->package);
1732 else if (opt & OPT_unpack) {
1733 unpack_package(deb_file[i]);
1735 else if (opt & OPT_install) {
1736 unpack_package(deb_file[i]);
1737 /* package is configured in second pass below */
1739 else if (opt & OPT_configure) {
1740 configure_package(deb_file[i]);
1743 /* configure installed packages */
1744 if (opt & OPT_install) {
1745 for (i = 0; i < deb_count; i++)
1746 configure_package(deb_file[i]);
1749 write_status_file(deb_file);
1751 if (ENABLE_FEATURE_CLEAN_UP) {
1752 for (i = 0; i < deb_count; i++) {
1753 free(deb_file[i]->control_file);
1754 free(deb_file[i]->filename);
1760 for (i = 0; i < NAME_HASH_PRIME; i++) {
1761 free(name_hashtable[i]);
1764 for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
1765 free_package(package_hashtable[i]);
1768 for (i = 0; i < STATUS_HASH_PRIME; i++) {
1769 free(status_hashtable[i]);
1772 free(status_hashtable);
1773 free(package_hashtable);
1774 free(name_hashtable);
1777 return EXIT_SUCCESS;