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 {
62 typedef struct common_node_s {
65 unsigned num_of_edges: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:14; /* has to fit PACKAGE_HASH_PRIME */
75 unsigned status:14; /* has to fit STATUS_HASH_PRIME */
78 /* Were statically declared here, but such a big bss is nommu-unfriendly */
79 static char **name_hashtable; /* [NAME_HASH_PRIME + 1] */
80 static common_node_t **package_hashtable; /* [PACKAGE_HASH_PRIME + 1] */
81 static status_node_t **status_hashtable; /* [STATUS_HASH_PRIME + 1] */
83 /* Even numbers are for 'extras', like ored dependencies or null */
87 EDGE_OR_PRE_DEPENDS = 2,
107 typedef struct deb_file_s {
114 static void make_hash(const char *key, unsigned *start, unsigned *decrement, const int hash_prime)
116 unsigned long int hash_num = key[0];
117 int len = strlen(key);
120 /* Maybe i should have uses a "proper" hashing algorithm here instead
121 * of making one up myself, seems to be working ok though. */
122 for (i = 1; i < len; i++) {
123 /* shifts the ascii based value and adds it to previous value
124 * shift amount is mod 24 because long int is 32 bit and data
125 * to be shifted is 8, don't want to shift data to where it has
127 hash_num += ((key[i] + key[i-1]) << ((key[i] * i) % 24));
129 *start = (unsigned) hash_num % hash_prime;
130 *decrement = (unsigned) 1 + (hash_num % (hash_prime - 1));
133 /* this adds the key to the hash table */
134 static int search_name_hashtable(const char *key)
136 unsigned probe_address = 0;
137 unsigned probe_decrement = 0;
139 make_hash(key, &probe_address, &probe_decrement, NAME_HASH_PRIME);
140 while (name_hashtable[probe_address] != NULL) {
141 if (strcmp(name_hashtable[probe_address], key) == 0) {
142 return probe_address;
144 probe_address -= probe_decrement;
145 if ((int)probe_address < 0) {
146 probe_address += NAME_HASH_PRIME;
149 name_hashtable[probe_address] = xstrdup(key);
150 return probe_address;
153 /* this DOESNT add the key to the hashtable
154 * TODO make it consistent with search_name_hashtable
156 static unsigned search_status_hashtable(const char *key)
158 unsigned probe_address = 0;
159 unsigned probe_decrement = 0;
161 make_hash(key, &probe_address, &probe_decrement, STATUS_HASH_PRIME);
162 while (status_hashtable[probe_address] != NULL) {
163 if (strcmp(key, name_hashtable[package_hashtable[status_hashtable[probe_address]->package]->name]) == 0) {
166 probe_address -= probe_decrement;
167 if ((int)probe_address < 0) {
168 probe_address += STATUS_HASH_PRIME;
171 return probe_address;
174 /* Need to rethink version comparison, maybe the official dpkg has something i can use ? */
175 static int version_compare_part(const char *version1, const char *version2)
177 int upstream_len1 = 0;
178 int upstream_len2 = 0;
187 if (version1 == NULL) {
188 version1 = xstrdup("");
190 if (version2 == NULL) {
191 version2 = xstrdup("");
193 upstream_len1 = strlen(version1);
194 upstream_len2 = strlen(version2);
196 while ((len1 < upstream_len1) || (len2 < upstream_len2)) {
197 /* Compare non-digit section */
198 tmp_int = strcspn(&version1[len1], "0123456789");
199 name1_char = xstrndup(&version1[len1], tmp_int);
201 tmp_int = strcspn(&version2[len2], "0123456789");
202 name2_char = xstrndup(&version2[len2], tmp_int);
204 tmp_int = strcmp(name1_char, name2_char);
212 tmp_int = strspn(&version1[len1], "0123456789");
213 name1_char = xstrndup(&version1[len1], tmp_int);
215 tmp_int = strspn(&version2[len2], "0123456789");
216 name2_char = xstrndup(&version2[len2], tmp_int);
218 ver_num1 = atoi(name1_char);
219 ver_num2 = atoi(name2_char);
222 if (ver_num1 < ver_num2) {
225 if (ver_num1 > ver_num2) {
232 /* if ver1 < ver2 return -1,
233 * if ver1 = ver2 return 0,
234 * if ver1 > ver2 return 1,
236 static int version_compare(const unsigned ver1, const unsigned ver2)
238 char *ch_ver1 = name_hashtable[ver1];
239 char *ch_ver2 = name_hashtable[ver2];
242 char *deb_ver1, *deb_ver2;
243 char *ver1_ptr, *ver2_ptr;
249 if (ch_ver1[1] == ':') {
251 ver1_ptr = strchr(ch_ver1, ':') + 1;
256 if (ch_ver2[1] == ':') {
258 ver2_ptr = strchr(ch_ver2, ':') + 1;
263 if (epoch1 < epoch2) {
266 else if (epoch1 > epoch2) {
270 /* Compare upstream version */
271 upstream_ver1 = xstrdup(ver1_ptr);
272 upstream_ver2 = xstrdup(ver2_ptr);
274 /* Chop off debian version, and store for later use */
275 deb_ver1 = strrchr(upstream_ver1, '-');
276 deb_ver2 = strrchr(upstream_ver2, '-');
285 result = version_compare_part(upstream_ver1, upstream_ver2);
287 /* Compare debian versions */
288 result = version_compare_part(deb_ver1, deb_ver2);
295 static int test_version(const unsigned version1, const unsigned version2, const unsigned operator)
297 const int version_result = version_compare(version1, version2);
302 return (version_result == 0);
304 return (version_result < 0);
306 return (version_result <= 0);
308 return (version_result > 0);
310 return (version_result >= 0);
316 static int search_package_hashtable(const unsigned name, const unsigned version, const unsigned operator)
318 unsigned probe_address = 0;
319 unsigned probe_decrement = 0;
321 make_hash(name_hashtable[name], &probe_address, &probe_decrement, PACKAGE_HASH_PRIME);
322 while (package_hashtable[probe_address] != NULL) {
323 if (package_hashtable[probe_address]->name == name) {
324 if (operator == VER_ANY) {
325 return probe_address;
327 if (test_version(package_hashtable[probe_address]->version, version, operator)) {
328 return probe_address;
331 probe_address -= probe_decrement;
332 if ((int)probe_address < 0) {
333 probe_address += PACKAGE_HASH_PRIME;
336 return probe_address;
340 * This function searches through the entire package_hashtable looking
341 * for a package which provides "needle". It returns the index into
342 * the package_hashtable for the providing package.
344 * needle is the index into name_hashtable of the package we are
347 * start_at is the index in the package_hashtable to start looking
348 * at. If start_at is -1 then start at the beginning. This is to allow
349 * for repeated searches since more than one package might provide
352 * FIXME: I don't think this is very efficient, but I thought I'd keep
353 * it simple for now until it proves to be a problem.
355 static int search_for_provides(int needle, int start_at) {
358 for (i = start_at + 1; i < PACKAGE_HASH_PRIME; i++) {
359 p = package_hashtable[i];
362 for (j = 0; j < p->num_of_edges; j++)
363 if (p->edge[j]->type == EDGE_PROVIDES && p->edge[j]->name == needle)
370 * Add an edge to a node
372 static void add_edge_to_node(common_node_t *node, edge_t *edge)
374 node->num_of_edges++;
375 node->edge = xrealloc(node->edge, sizeof(edge_t) * (node->num_of_edges + 1));
376 node->edge[node->num_of_edges - 1] = edge;
380 * Create one new node and one new edge for every dependency.
382 * Dependencies which contain multiple alternatives are represented as
383 * an EDGE_OR_PRE_DEPENDS or EDGE_OR_DEPENDS node, followed by a
384 * number of EDGE_PRE_DEPENDS or EDGE_DEPENDS nodes. The name field of
385 * the OR edge contains the full dependency string while the version
386 * field contains the number of EDGE nodes which follow as part of
389 static void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned edge_type)
391 char *line = xstrdup(whole_line);
393 char *line_ptr1 = NULL;
394 char *line_ptr2 = NULL;
402 field = strtok_r(line, ",", &line_ptr1);
404 /* skip leading spaces */
405 field += strspn(field, " ");
406 line2 = xstrdup(field);
407 field2 = strtok_r(line2, "|", &line_ptr2);
409 if ((edge_type == EDGE_DEPENDS || edge_type == EDGE_PRE_DEPENDS)
410 && (strcmp(field, field2) != 0)
412 or_edge = xmalloc(sizeof(edge_t));
413 or_edge->type = edge_type + 1;
414 or_edge->name = search_name_hashtable(field);
415 or_edge->version = 0; // tracks the number of altenatives
416 add_edge_to_node(parent_node, or_edge);
420 edge = xmalloc(sizeof(edge_t));
421 edge->type = edge_type;
423 /* Skip any extra leading spaces */
424 field2 += strspn(field2, " ");
426 /* Get dependency version info */
427 version = strchr(field2, '(');
428 if (version == NULL) {
429 edge->operator = VER_ANY;
430 /* Get the versions hash number, adding it if the number isnt already in there */
431 edge->version = search_name_hashtable("ANY");
433 /* Skip leading ' ' or '(' */
434 version += strspn(field2, " (");
435 /* Calculate length of any operator characters */
436 offset_ch = strspn(version, "<=>");
437 /* Determine operator */
439 if (strncmp(version, "=", offset_ch) == 0) {
440 edge->operator = VER_EQUAL;
442 else if (strncmp(version, "<<", offset_ch) == 0) {
443 edge->operator = VER_LESS;
445 else if (strncmp(version, "<=", offset_ch) == 0) {
446 edge->operator = VER_LESS_EQUAL;
448 else if (strncmp(version, ">>", offset_ch) == 0) {
449 edge->operator = VER_MORE;
451 else if (strncmp(version, ">=", offset_ch) == 0) {
452 edge->operator = VER_MORE_EQUAL;
454 bb_error_msg_and_die("illegal operator");
457 /* skip to start of version numbers */
458 version += offset_ch;
459 version += strspn(version, " ");
461 /* Truncate version at trailing ' ' or ')' */
462 version[strcspn(version, " )")] = '\0';
463 /* Get the versions hash number, adding it if the number isnt already in there */
464 edge->version = search_name_hashtable(version);
467 /* Get the dependency name */
468 field2[strcspn(field2, " (")] = '\0';
469 edge->name = search_name_hashtable(field2);
474 add_edge_to_node(parent_node, edge);
475 } while ((field2 = strtok_r(NULL, "|", &line_ptr2)) != NULL);
477 } while ((field = strtok_r(NULL, ",", &line_ptr1)) != NULL);
481 static void free_package(common_node_t *node)
485 for (i = 0; i < node->num_of_edges; i++) {
494 * Gets the next package field from package_buffer, seperated into the field name
495 * and field value, it returns the int offset to the first character of the next field
497 static int read_package_field(const char *package_buffer, char **field_name, char **field_value)
499 int offset_name_start = 0;
500 int offset_name_end = 0;
501 int offset_value_start = 0;
502 int offset_value_end = 0;
507 int exit_flag = FALSE;
509 if (package_buffer == NULL) {
515 next_offset = offset + 1;
516 switch (package_buffer[offset]) {
521 if (offset_name_end == 0) {
522 offset_name_end = offset;
523 offset_value_start = next_offset;
525 /* TODO: Name might still have trailing spaces if ':' isnt
526 * immediately after name */
529 /* TODO: The char next_offset may be out of bounds */
530 if (package_buffer[next_offset] != ' ') {
536 /* increment the value start point if its a just filler */
537 if (offset_name_start == offset) {
540 if (offset_value_start == offset) {
541 offset_value_start++;
546 /* Check that the names are valid */
547 offset_value_end = offset;
548 name_length = offset_name_end - offset_name_start;
549 value_length = offset_value_end - offset_value_start;
550 if (name_length == 0) {
553 if ((name_length > 0) && (value_length > 0)) {
557 /* If not valid, start fresh with next field */
559 offset_name_start = offset + 1;
561 offset_value_start = offset + 1;
562 offset_value_end = offset + 1;
569 *field_name = xstrndup(&package_buffer[offset_name_start], name_length);
572 if (value_length > 0) {
573 *field_value = xstrndup(&package_buffer[offset_value_start], value_length);
578 static unsigned fill_package_struct(char *control_buffer)
580 static const char *const field_names[] = { "Package", "Version",
581 "Pre-Depends", "Depends","Replaces", "Provides",
582 "Conflicts", "Suggests", "Recommends", "Enhances", 0
585 common_node_t *new_node = xzalloc(sizeof(common_node_t));
590 int buffer_length = strlen(control_buffer);
592 new_node->version = search_name_hashtable("unknown");
593 while (field_start < buffer_length) {
596 field_start += read_package_field(&control_buffer[field_start],
597 &field_name, &field_value);
599 if (field_name == NULL) {
600 goto fill_package_struct_cleanup; /* Oh no, the dreaded goto statement ! */
603 field_num = index_in_str_array(field_names, field_name);
605 case 0: /* Package */
606 new_node->name = search_name_hashtable(field_value);
608 case 1: /* Version */
609 new_node->version = search_name_hashtable(field_value);
611 case 2: /* Pre-Depends */
612 add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
614 case 3: /* Depends */
615 add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
617 case 4: /* Replaces */
618 add_split_dependencies(new_node, field_value, EDGE_REPLACES);
620 case 5: /* Provides */
621 add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
623 case 6: /* Conflicts */
624 add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
626 case 7: /* Suggests */
627 add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
629 case 8: /* Recommends */
630 add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
632 case 9: /* Enhances */
633 add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
636 fill_package_struct_cleanup:
641 if (new_node->version == search_name_hashtable("unknown")) {
642 free_package(new_node);
645 num = search_package_hashtable(new_node->name, new_node->version, VER_EQUAL);
646 free_package(package_hashtable[num]);
647 package_hashtable[num] = new_node;
651 /* if num = 1, it returns the want status, 2 returns flag, 3 returns status */
652 static unsigned get_status(const unsigned status_node, const int num)
654 char *status_string = name_hashtable[status_hashtable[status_node]->status];
655 char *state_sub_string;
656 unsigned state_sub_num;
660 /* set tmp_string to point to the start of the word number */
661 for (i = 1; i < num; i++) {
662 /* skip past a word */
663 status_string += strcspn(status_string, " ");
664 /* skip past the separating spaces */
665 status_string += strspn(status_string, " ");
667 len = strcspn(status_string, " \n");
668 state_sub_string = xstrndup(status_string, len);
669 state_sub_num = search_name_hashtable(state_sub_string);
670 free(state_sub_string);
671 return state_sub_num;
674 static void set_status(const unsigned status_node_num, const char *new_value, const int position)
676 const unsigned new_value_len = strlen(new_value);
677 const unsigned new_value_num = search_name_hashtable(new_value);
678 unsigned want = get_status(status_node_num, 1);
679 unsigned flag = get_status(status_node_num, 2);
680 unsigned status = get_status(status_node_num, 3);
681 int want_len = strlen(name_hashtable[want]);
682 int flag_len = strlen(name_hashtable[flag]);
683 int status_len = strlen(name_hashtable[status]);
688 want = new_value_num;
689 want_len = new_value_len;
692 flag = new_value_num;
693 flag_len = new_value_len;
696 status = new_value_num;
697 status_len = new_value_len;
700 bb_error_msg_and_die("DEBUG ONLY: this shouldnt happen");
703 new_status = xasprintf("%s %s %s", name_hashtable[want], name_hashtable[flag], name_hashtable[status]);
704 status_hashtable[status_node_num]->status = search_name_hashtable(new_status);
708 static const char *describe_status(int status_num) {
709 int status_want, status_state ;
710 if (status_hashtable[status_num] == NULL || status_hashtable[status_num]->status == 0)
711 return "is not installed or flagged to be installed\n";
713 status_want = get_status(status_num, 1);
714 status_state = get_status(status_num, 3);
716 if (status_state == search_name_hashtable("installed")) {
717 if (status_want == search_name_hashtable("install"))
718 return "is installed";
719 if (status_want == search_name_hashtable("deinstall"))
720 return "is marked to be removed";
721 if (status_want == search_name_hashtable("purge"))
722 return "is marked to be purged";
724 if (status_want == search_name_hashtable("unknown"))
725 return "is in an indeterminate state";
726 if (status_want == search_name_hashtable("install"))
727 return "is marked to be installed";
729 return "is not installed or flagged to be installed";
733 static void index_status_file(const char *filename)
736 char *control_buffer;
738 status_node_t *status_node = NULL;
741 status_file = xfopen(filename, "r");
742 while ((control_buffer = xmalloc_fgets_str(status_file, "\n\n")) != NULL) {
743 const unsigned package_num = fill_package_struct(control_buffer);
744 if (package_num != -1) {
745 status_node = xmalloc(sizeof(status_node_t));
746 /* fill_package_struct doesnt handle the status field */
747 status_line = strstr(control_buffer, "Status:");
748 if (status_line != NULL) {
750 status_line += strspn(status_line, " \n\t");
751 status_line = xstrndup(status_line, strcspn(status_line, "\n"));
752 status_node->status = search_name_hashtable(status_line);
755 status_node->package = package_num;
756 status_num = search_status_hashtable(name_hashtable[package_hashtable[status_node->package]->name]);
757 status_hashtable[status_num] = status_node;
759 free(control_buffer);
764 static void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
770 start += read_package_field(&control_buffer[start], &name, &value);
774 if (strcmp(name, "Status") != 0) {
775 fprintf(new_status_file, "%s: %s\n", name, value);
780 /* This could do with a cleanup */
781 static void write_status_file(deb_file_t **deb_file)
783 FILE *old_status_file = xfopen("/var/lib/dpkg/status", "r");
784 FILE *new_status_file = xfopen("/var/lib/dpkg/status.udeb", "w");
786 char *status_from_file;
787 char *control_buffer = NULL;
794 /* Update previously known packages */
795 while ((control_buffer = xmalloc_fgets_str(old_status_file, "\n\n")) != NULL) {
796 if ((tmp_string = strstr(control_buffer, "Package:")) == NULL) {
801 tmp_string += strspn(tmp_string, " \n\t");
802 package_name = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
804 tmp_string = strstr(control_buffer, "Status:");
805 if (tmp_string != NULL) {
806 /* Seperate the status value from the control buffer */
808 tmp_string += strspn(tmp_string, " \n\t");
809 status_from_file = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
811 status_from_file = NULL;
814 /* Find this package in the status hashtable */
815 status_num = search_status_hashtable(package_name);
816 if (status_hashtable[status_num] != NULL) {
817 const char *status_from_hashtable = name_hashtable[status_hashtable[status_num]->status];
818 if (strcmp(status_from_file, status_from_hashtable) != 0) {
819 /* New status isnt exactly the same as old status */
820 const int state_status = get_status(status_num, 3);
821 if ((strcmp("installed", name_hashtable[state_status]) == 0) ||
822 (strcmp("unpacked", name_hashtable[state_status]) == 0)) {
823 /* We need to add the control file from the package */
825 while (deb_file[i] != NULL) {
826 if (strcmp(package_name, name_hashtable[package_hashtable[deb_file[i]->package]->name]) == 0) {
827 /* Write a status file entry with a modified status */
828 /* remove trailing \n's */
829 write_buffer_no_status(new_status_file, deb_file[i]->control_file);
830 set_status(status_num, "ok", 2);
831 fprintf(new_status_file, "Status: %s\n\n",
832 name_hashtable[status_hashtable[status_num]->status]);
838 /* This is temperary, debugging only */
839 if (deb_file[i] == NULL) {
840 bb_error_msg_and_die("ALERT: cannot find a control file, "
841 "your status file may be broken, status may be "
842 "incorrect for %s", package_name);
845 else if (strcmp("not-installed", name_hashtable[state_status]) == 0) {
846 /* Only write the Package, Status, Priority and Section lines */
847 fprintf(new_status_file, "Package: %s\n", package_name);
848 fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
853 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
854 if (field_name == NULL) {
857 if ((strcmp(field_name, "Priority") == 0) ||
858 (strcmp(field_name, "Section") == 0)) {
859 fprintf(new_status_file, "%s: %s\n", field_name, field_value);
863 fputs("\n", new_status_file);
865 else if (strcmp("config-files", name_hashtable[state_status]) == 0) {
866 /* only change the status line */
870 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
871 if (field_name == NULL) {
874 /* Setup start point for next field */
875 if (strcmp(field_name, "Status") == 0) {
876 fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
878 fprintf(new_status_file, "%s: %s\n", field_name, field_value);
882 fputs("\n", new_status_file);
886 /* If the package from the status file wasnt handle above, do it now*/
888 fprintf(new_status_file, "%s\n\n", control_buffer);
891 free(status_from_file);
893 free(control_buffer);
896 /* Write any new packages */
897 for (i = 0; deb_file[i] != NULL; i++) {
898 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[i]->package]->name]);
899 if (strcmp("reinstreq", name_hashtable[get_status(status_num, 2)]) == 0) {
900 write_buffer_no_status(new_status_file, deb_file[i]->control_file);
901 set_status(status_num, "ok", 2);
902 fprintf(new_status_file, "Status: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
905 fclose(old_status_file);
906 fclose(new_status_file);
909 /* Create a separate backfile to dpkg */
910 if (rename("/var/lib/dpkg/status", "/var/lib/dpkg/status.udeb.bak") == -1) {
911 struct stat stat_buf;
912 xstat("/var/lib/dpkg/status", &stat_buf);
913 /* Its ok if renaming the status file fails because status
914 * file doesnt exist, maybe we are starting from scratch */
915 bb_error_msg("no status file found, creating new one");
918 if (rename("/var/lib/dpkg/status.udeb", "/var/lib/dpkg/status") == -1) {
919 bb_error_msg_and_die("DANGER: cannot create status file, "
920 "you need to manually repair your status file");
924 /* This function returns TRUE if the given package can satisfy a
925 * dependency of type depend_type.
927 * A pre-depends is satisfied only if a package is already installed,
928 * which a regular depends can be satisfied by a package which we want
931 static int package_satisfies_dependency(int package, int depend_type)
933 int status_num = search_status_hashtable(name_hashtable[package_hashtable[package]->name]);
935 /* status could be unknown if package is a pure virtual
936 * provides which cannot satisfy any dependency by itself.
938 if (status_hashtable[status_num] == NULL)
941 switch (depend_type) {
942 case EDGE_PRE_DEPENDS: return get_status(status_num, 3) == search_name_hashtable("installed");
943 case EDGE_DEPENDS: return get_status(status_num, 1) == search_name_hashtable("install");
948 static int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
950 int *conflicts = NULL;
951 int conflicts_num = 0;
955 /* Check for conflicts
956 * TODO: TEST if conflicts with other packages to be installed
958 * Add install packages and the packages they provide
959 * to the list of files to check conflicts for
962 /* Create array of package numbers to check against
963 * installed package for conflicts*/
964 while (deb_file[i] != NULL) {
965 const unsigned package_num = deb_file[i]->package;
966 conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
967 conflicts[conflicts_num] = package_num;
969 /* add provides to conflicts list */
970 for (j = 0; j < package_hashtable[package_num]->num_of_edges; j++) {
971 if (package_hashtable[package_num]->edge[j]->type == EDGE_PROVIDES) {
972 const int conflicts_package_num = search_package_hashtable(
973 package_hashtable[package_num]->edge[j]->name,
974 package_hashtable[package_num]->edge[j]->version,
975 package_hashtable[package_num]->edge[j]->operator);
976 if (package_hashtable[conflicts_package_num] == NULL) {
977 /* create a new package */
978 common_node_t *new_node = xzalloc(sizeof(common_node_t));
979 new_node->name = package_hashtable[package_num]->edge[j]->name;
980 new_node->version = package_hashtable[package_num]->edge[j]->version;
981 package_hashtable[conflicts_package_num] = new_node;
983 conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
984 conflicts[conflicts_num] = conflicts_package_num;
991 /* Check conflicts */
993 while (deb_file[i] != NULL) {
994 const common_node_t *package_node = package_hashtable[deb_file[i]->package];
996 status_num = search_status_hashtable(name_hashtable[package_node->name]);
998 if (get_status(status_num, 3) == search_name_hashtable("installed")) {
1003 for (j = 0; j < package_node->num_of_edges; j++) {
1004 const edge_t *package_edge = package_node->edge[j];
1006 if (package_edge->type == EDGE_CONFLICTS) {
1007 const unsigned package_num =
1008 search_package_hashtable(package_edge->name,
1009 package_edge->version,
1010 package_edge->operator);
1012 if (package_hashtable[package_num] != NULL) {
1013 status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
1015 if (get_status(status_num, 1) == search_name_hashtable("install")) {
1016 result = test_version(package_hashtable[deb_file[i]->package]->version,
1017 package_edge->version, package_edge->operator);
1022 bb_error_msg_and_die("package %s conflicts with %s",
1023 name_hashtable[package_node->name],
1024 name_hashtable[package_edge->name]);
1032 /* Check dependendcies */
1033 for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
1035 int number_of_alternatives = 0;
1036 const edge_t * root_of_alternatives = NULL;
1037 const common_node_t *package_node = package_hashtable[i];
1039 /* If the package node does not exist then this
1040 * package is a virtual one. In which case there are
1041 * no dependencies to check.
1043 if (package_node == NULL) continue;
1045 status_num = search_status_hashtable(name_hashtable[package_node->name]);
1047 /* If there is no status then this package is a
1048 * virtual one provided by something else. In which
1049 * case there are no dependencies to check.
1051 if (status_hashtable[status_num] == NULL) continue;
1053 /* If we don't want this package installed then we may
1054 * as well ignore it's dependencies.
1056 if (get_status(status_num, 1) != search_name_hashtable("install")) {
1060 /* This code is tested only for EDGE_DEPENDS, since I
1061 * have no suitable pre-depends available. There is no
1062 * reason that it shouldn't work though :-)
1064 for (j = 0; j < package_node->num_of_edges; j++) {
1065 const edge_t *package_edge = package_node->edge[j];
1066 unsigned package_num;
1068 if (package_edge->type == EDGE_OR_PRE_DEPENDS ||
1069 package_edge->type == EDGE_OR_DEPENDS) { /* start an EDGE_OR_ list */
1070 number_of_alternatives = package_edge->version;
1071 root_of_alternatives = package_edge;
1073 } else if (number_of_alternatives == 0) { /* not in the middle of an EDGE_OR_ list */
1074 number_of_alternatives = 1;
1075 root_of_alternatives = NULL;
1078 package_num = search_package_hashtable(package_edge->name, package_edge->version, package_edge->operator);
1080 if (package_edge->type == EDGE_PRE_DEPENDS ||
1081 package_edge->type == EDGE_DEPENDS) {
1085 /* If we are inside an alternative then check
1086 * this edge is the right type.
1088 * EDGE_DEPENDS == OR_DEPENDS -1
1089 * EDGE_PRE_DEPENDS == OR_PRE_DEPENDS -1
1091 if (root_of_alternatives && package_edge->type != root_of_alternatives->type - 1)
1092 bb_error_msg_and_die("fatal error, package dependencies corrupt: %d != %d - 1",
1093 package_edge->type, root_of_alternatives->type);
1095 if (package_hashtable[package_num] != NULL)
1096 result = !package_satisfies_dependency(package_num, package_edge->type);
1098 if (result) { /* check for other package which provide what we are looking for */
1101 while ((provider = search_for_provides(package_edge->name, provider)) > -1) {
1102 if (package_hashtable[provider] == NULL) {
1103 puts("Have a provider but no package information for it");
1106 result = !package_satisfies_dependency(provider, package_edge->type);
1113 /* It must be already installed, or to be installed */
1114 number_of_alternatives--;
1115 if (result && number_of_alternatives == 0) {
1116 if (root_of_alternatives)
1117 bb_error_msg_and_die(
1118 "package %s %sdepends on %s, "
1119 "which cannot be satisfied",
1120 name_hashtable[package_node->name],
1121 package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1122 name_hashtable[root_of_alternatives->name]);
1124 bb_error_msg_and_die(
1125 "package %s %sdepends on %s, which %s\n",
1126 name_hashtable[package_node->name],
1127 package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1128 name_hashtable[package_edge->name],
1129 describe_status(status_num));
1130 } else if (result == 0 && number_of_alternatives) {
1131 /* we've found a package which
1132 * satisfies the dependency,
1133 * so skip over the rest of
1136 j += number_of_alternatives;
1137 number_of_alternatives = 0;
1146 static char **create_list(const char *filename)
1149 char **file_list = NULL;
1153 /* don't use [xw]fopen here, handle error ourself */
1154 list_stream = fopen(filename, "r");
1155 if (list_stream == NULL) {
1159 while ((line = xmalloc_getline(list_stream)) != NULL) {
1160 file_list = xrealloc(file_list, sizeof(char *) * (count + 2));
1161 file_list[count] = line;
1164 fclose(list_stream);
1169 file_list[count] = NULL;
1174 /* maybe i should try and hook this into remove_file.c somehow */
1175 static int remove_file_array(char **remove_names, char **exclude_names)
1177 struct stat path_stat;
1179 int remove_flag = FALSE;
1182 if (remove_names == NULL) {
1185 for (i = 0; remove_names[i] != NULL; i++) {
1187 if (exclude_names != NULL) {
1188 for (j = 0; exclude_names[j] != 0; j++) {
1189 if (strcmp(remove_names[i], exclude_names[j]) == 0) {
1196 if (lstat(remove_names[i], &path_stat) < 0) {
1199 if (S_ISDIR(path_stat.st_mode)) {
1200 if (rmdir(remove_names[i]) != -1) {
1204 if (unlink(remove_names[i]) != -1) {
1213 static int run_package_script(const char *package_name, const char *script_type)
1215 struct stat path_stat;
1219 script_path = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, script_type);
1221 /* If the file doesnt exist is isnt a fatal */
1222 result = lstat(script_path, &path_stat) < 0 ? EXIT_SUCCESS : system(script_path);
1227 static const char *all_control_files[] = {"preinst", "postinst", "prerm", "postrm",
1228 "list", "md5sums", "shlibs", "conffiles", "config", "templates", NULL };
1230 static char **all_control_list(const char *package_name)
1233 char **remove_files;
1235 /* Create a list of all /var/lib/dpkg/info/<package> files */
1236 remove_files = xzalloc(sizeof(all_control_files));
1237 while (all_control_files[i]) {
1238 remove_files[i] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, all_control_files[i]);
1242 return remove_files;
1245 static void free_array(char **array)
1258 /* This function lists information on the installed packages. It loops through
1259 * the status_hashtable to retrieve the info. This results in smaller code than
1260 * scanning the status file. The resulting list, however, is unsorted.
1262 static void list_packages(void)
1266 puts(" Name Version");
1267 puts("+++-==============-==============");
1269 /* go through status hash, dereference package hash and finally strings */
1270 for (i=0; i<STATUS_HASH_PRIME+1; i++) {
1272 if (status_hashtable[i]) {
1273 const char *stat_str; /* status string */
1274 const char *name_str; /* package name */
1275 const char *vers_str; /* version */
1276 char s1, s2; /* status abbreviations */
1277 int spccnt; /* space count */
1280 stat_str = name_hashtable[status_hashtable[i]->status];
1281 name_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->name];
1282 vers_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->version];
1284 /* get abbreviation for status field 1 */
1285 s1 = stat_str[0] == 'i' ? 'i' : 'r';
1287 /* get abbreviation for status field 2 */
1288 for (j=0, spccnt=0; stat_str[j] && spccnt<2; j++) {
1289 if (stat_str[j] == ' ') spccnt++;
1293 /* print out the line formatted like Debian dpkg */
1294 printf("%c%c %-14s %s\n", s1, s2, name_str, vers_str);
1299 static void remove_package(const unsigned package_num, int noisy)
1301 const char *package_name = name_hashtable[package_hashtable[package_num]->name];
1302 const char *package_version = name_hashtable[package_hashtable[package_num]->version];
1303 const unsigned status_num = search_status_hashtable(package_name);
1304 const int package_name_length = strlen(package_name);
1305 char **remove_files;
1306 char **exclude_files;
1307 char list_name[package_name_length + 25];
1308 char conffile_name[package_name_length + 30];
1311 printf("Removing %s (%s)...\n", package_name, package_version);
1313 /* run prerm script */
1314 if (run_package_script(package_name, "prerm") != 0) {
1315 bb_error_msg_and_die("script failed, prerm failure");
1318 /* Create a list of files to remove, and a separate list of those to keep */
1319 sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
1320 remove_files = create_list(list_name);
1322 sprintf(conffile_name, "/var/lib/dpkg/info/%s.conffiles", package_name);
1323 exclude_files = create_list(conffile_name);
1325 /* Some directories can't be removed straight away, so do multiple passes */
1326 while (remove_file_array(remove_files, exclude_files)) /*repeat */;
1327 free_array(exclude_files);
1328 free_array(remove_files);
1330 /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep */
1331 exclude_files = xzalloc(sizeof(char*) * 3);
1332 exclude_files[0] = xstrdup(conffile_name);
1333 exclude_files[1] = xasprintf("/var/lib/dpkg/info/%s.postrm", package_name);
1335 /* Create a list of all /var/lib/dpkg/info/<package> files */
1336 remove_files = all_control_list(package_name);
1338 remove_file_array(remove_files, exclude_files);
1339 free_array(remove_files);
1340 free_array(exclude_files);
1342 /* rename <package>.conffile to <package>.list */
1343 rename(conffile_name, list_name);
1345 /* Change package status */
1346 set_status(status_num, "config-files", 3);
1349 static void purge_package(const unsigned package_num)
1351 const char *package_name = name_hashtable[package_hashtable[package_num]->name];
1352 const char *package_version = name_hashtable[package_hashtable[package_num]->version];
1353 const unsigned status_num = search_status_hashtable(package_name);
1354 char **remove_files;
1355 char **exclude_files;
1356 char list_name[strlen(package_name) + 25];
1358 printf("Purging %s (%s)...\n", package_name, package_version);
1360 /* run prerm script */
1361 if (run_package_script(package_name, "prerm") != 0) {
1362 bb_error_msg_and_die("script failed, prerm failure");
1365 /* Create a list of files to remove */
1366 sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
1367 remove_files = create_list(list_name);
1369 exclude_files = xzalloc(sizeof(char*));
1371 /* Some directories cant be removed straight away, so do multiple passes */
1372 while (remove_file_array(remove_files, exclude_files)) /* repeat */;
1373 free_array(remove_files);
1375 /* Create a list of all /var/lib/dpkg/info/<package> files */
1376 remove_files = all_control_list(package_name);
1377 remove_file_array(remove_files, exclude_files);
1378 free_array(remove_files);
1379 free(exclude_files);
1381 /* run postrm script */
1382 if (run_package_script(package_name, "postrm") != 0) {
1383 bb_error_msg_and_die("postrm failure.. set status to what?");
1386 /* Change package status */
1387 set_status(status_num, "not-installed", 3);
1390 static archive_handle_t *init_archive_deb_ar(const char *filename)
1392 archive_handle_t *ar_handle;
1394 /* Setup an ar archive handle that refers to the gzip sub archive */
1395 ar_handle = init_handle();
1396 ar_handle->filter = filter_accept_list_reassign;
1397 ar_handle->src_fd = xopen(filename, O_RDONLY);
1402 static void init_archive_deb_control(archive_handle_t *ar_handle)
1404 archive_handle_t *tar_handle;
1406 /* Setup the tar archive handle */
1407 tar_handle = init_handle();
1408 tar_handle->src_fd = ar_handle->src_fd;
1410 /* We don't care about data.tar.* or debian-binary, just control.tar.* */
1411 #ifdef CONFIG_FEATURE_DEB_TAR_GZ
1412 llist_add_to(&(ar_handle->accept), (char*)"control.tar.gz");
1414 #ifdef CONFIG_FEATURE_DEB_TAR_BZ2
1415 llist_add_to(&(ar_handle->accept), (char*)"control.tar.bz2");
1418 /* Assign the tar handle as a subarchive of the ar handle */
1419 ar_handle->sub_archive = tar_handle;
1422 static void init_archive_deb_data(archive_handle_t *ar_handle)
1424 archive_handle_t *tar_handle;
1426 /* Setup the tar archive handle */
1427 tar_handle = init_handle();
1428 tar_handle->src_fd = ar_handle->src_fd;
1430 /* We don't care about control.tar.* or debian-binary, just data.tar.* */
1431 #ifdef CONFIG_FEATURE_DEB_TAR_GZ
1432 llist_add_to(&(ar_handle->accept), (char*)"data.tar.gz");
1434 #ifdef CONFIG_FEATURE_DEB_TAR_BZ2
1435 llist_add_to(&(ar_handle->accept), (char*)"data.tar.bz2");
1438 /* Assign the tar handle as a subarchive of the ar handle */
1439 ar_handle->sub_archive = tar_handle;
1442 static char *deb_extract_control_file_to_buffer(archive_handle_t *ar_handle, llist_t *myaccept)
1444 ar_handle->sub_archive->action_data = data_extract_to_buffer;
1445 ar_handle->sub_archive->accept = myaccept;
1446 ar_handle->sub_archive->filter = filter_accept_list;
1448 unpack_ar_archive(ar_handle);
1449 close(ar_handle->src_fd);
1451 return ar_handle->sub_archive->buffer;
1454 static void data_extract_all_prefix(archive_handle_t *archive_handle)
1456 char *name_ptr = archive_handle->file_header->name;
1458 name_ptr += strspn(name_ptr, "./");
1459 if (name_ptr[0] != '\0') {
1460 archive_handle->file_header->name = xasprintf("%s%s", archive_handle->buffer, name_ptr);
1461 data_extract_all(archive_handle);
1465 static void unpack_package(deb_file_t *deb_file)
1467 const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
1468 const unsigned status_num = search_status_hashtable(package_name);
1469 const unsigned status_package_num = status_hashtable[status_num]->package;
1471 char *list_filename;
1472 archive_handle_t *archive_handle;
1474 llist_t *accept_list = NULL;
1477 /* If existing version, remove it first */
1478 if (strcmp(name_hashtable[get_status(status_num, 3)], "installed") == 0) {
1479 /* Package is already installed, remove old version first */
1480 printf("Preparing to replace %s %s (using %s)...\n", package_name,
1481 name_hashtable[package_hashtable[status_package_num]->version],
1482 deb_file->filename);
1483 remove_package(status_package_num, 0);
1485 printf("Unpacking %s (from %s)...\n", package_name, deb_file->filename);
1488 /* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */
1489 info_prefix = xasprintf("/var/lib/dpkg/info/%s.", package_name);
1490 archive_handle = init_archive_deb_ar(deb_file->filename);
1491 init_archive_deb_control(archive_handle);
1493 while (all_control_files[i]) {
1494 char *c = xasprintf("./%s", all_control_files[i]);
1495 llist_add_to(&accept_list, c);
1498 archive_handle->sub_archive->accept = accept_list;
1499 archive_handle->sub_archive->filter = filter_accept_list;
1500 archive_handle->sub_archive->action_data = data_extract_all_prefix;
1501 archive_handle->sub_archive->buffer = info_prefix;
1502 archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
1503 unpack_ar_archive(archive_handle);
1505 /* Run the preinst prior to extracting */
1506 if (run_package_script(package_name, "preinst") != 0) {
1507 /* when preinst returns exit code != 0 then quit installation process */
1508 bb_error_msg_and_die("subprocess pre-installation script returned error");
1511 /* Extract data.tar.gz to the root directory */
1512 archive_handle = init_archive_deb_ar(deb_file->filename);
1513 init_archive_deb_data(archive_handle);
1514 archive_handle->sub_archive->action_data = data_extract_all_prefix;
1515 archive_handle->sub_archive->buffer = (char*)"/"; /* huh? */
1516 archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
1517 unpack_ar_archive(archive_handle);
1519 /* Create the list file */
1520 list_filename = xasprintf("/var/lib/dpkg/info/%s.list", package_name);
1521 out_stream = xfopen(list_filename, "w");
1522 while (archive_handle->sub_archive->passed) {
1523 /* the leading . has been stripped by data_extract_all_prefix already */
1524 fputs(archive_handle->sub_archive->passed->data, out_stream);
1525 fputc('\n', out_stream);
1526 archive_handle->sub_archive->passed = archive_handle->sub_archive->passed->link;
1531 set_status(status_num, "install", 1);
1532 set_status(status_num, "unpacked", 3);
1535 free(list_filename);
1538 static void configure_package(deb_file_t *deb_file)
1540 const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
1541 const char *package_version = name_hashtable[package_hashtable[deb_file->package]->version];
1542 const int status_num = search_status_hashtable(package_name);
1544 printf("Setting up %s (%s)...\n", package_name, package_version);
1546 /* Run the postinst script */
1547 if (run_package_script(package_name, "postinst") != 0) {
1548 /* TODO: handle failure gracefully */
1549 bb_error_msg_and_die("postrm failure.. set status to what?");
1551 /* Change status to reflect success */
1552 set_status(status_num, "install", 1);
1553 set_status(status_num, "installed", 3);
1556 int dpkg_main(int argc, char **argv);
1557 int dpkg_main(int argc, char **argv)
1559 deb_file_t **deb_file = NULL;
1560 status_node_t *status_node;
1569 OPT_configure = 0x1,
1570 OPT_force_ignore_depends = 0x2,
1572 OPT_list_installed = 0x8,
1578 opt = getopt32(argc, argv, "CF:ilPru", &str_f);
1579 //if (opt & OPT_configure) ... // -C
1580 if (opt & OPT_force_ignore_depends) { // -F (--force in official dpkg)
1581 if (strcmp(str_f, "depends"))
1582 opt &= ~OPT_force_ignore_depends;
1584 //if (opt & OPT_install) ... // -i
1585 //if (opt & OPT_list_installed) ... // -l
1586 //if (opt & OPT_purge) ... // -P
1587 //if (opt & OPT_remove) ... // -r
1588 //if (opt & OPT_unpack) ... // -u (--unpack in official dpkg)
1591 /* check for non-option argument if expected */
1592 if (!opt || (!argc && !(opt && OPT_list_installed)))
1595 name_hashtable = xzalloc(sizeof(name_hashtable[0]) * (NAME_HASH_PRIME + 1));
1596 package_hashtable = xzalloc(sizeof(package_hashtable[0]) * (PACKAGE_HASH_PRIME + 1));
1597 status_hashtable = xzalloc(sizeof(status_hashtable[0]) * (STATUS_HASH_PRIME + 1));
1599 /* puts("(Reading database ... xxxxx files and directories installed.)"); */
1600 index_status_file("/var/lib/dpkg/status");
1602 /* if the list action was given print the installed packages and exit */
1603 if (opt & OPT_list_installed) {
1605 return EXIT_SUCCESS;
1608 /* Read arguments and store relevant info in structs */
1610 /* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */
1611 deb_file = xrealloc(deb_file, sizeof(deb_file[0]) * (deb_count + 2));
1612 deb_file[deb_count] = xzalloc(sizeof(deb_file[0][0]));
1613 if (opt & (OPT_install | OPT_unpack)) {
1614 /* -i/-u: require filename */
1615 archive_handle_t *archive_handle;
1616 llist_t *control_list = NULL;
1618 /* Extract the control file */
1619 llist_add_to(&control_list, (char*)"./control");
1620 archive_handle = init_archive_deb_ar(argv[0]);
1621 init_archive_deb_control(archive_handle);
1622 deb_file[deb_count]->control_file = deb_extract_control_file_to_buffer(archive_handle, control_list);
1623 if (deb_file[deb_count]->control_file == NULL) {
1624 bb_error_msg_and_die("cannot extract control file");
1626 deb_file[deb_count]->filename = xstrdup(argv[0]);
1627 package_num = fill_package_struct(deb_file[deb_count]->control_file);
1629 if (package_num == -1) {
1630 bb_error_msg("invalid control file in %s", argv[0]);
1634 deb_file[deb_count]->package = (unsigned) package_num;
1636 /* Add the package to the status hashtable */
1637 if (opt & (OPT_unpack | OPT_install)) {
1638 /* Try and find a currently installed version of this package */
1639 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
1640 /* If no previous entry was found initialise a new entry */
1641 if (status_hashtable[status_num] == NULL
1642 || status_hashtable[status_num]->status == 0
1644 status_node = xmalloc(sizeof(status_node_t));
1645 status_node->package = deb_file[deb_count]->package;
1646 /* reinstreq isnt changed to "ok" until the package control info
1647 * is written to the status file*/
1648 status_node->status = search_name_hashtable("install reinstreq not-installed");
1649 status_hashtable[status_num] = status_node;
1651 set_status(status_num, "install", 1);
1652 set_status(status_num, "reinstreq", 2);
1655 } else if (opt & (OPT_configure | OPT_purge | OPT_remove)) {
1656 /* -C/-p/-r: require package name */
1657 deb_file[deb_count]->package = search_package_hashtable(
1658 search_name_hashtable(argv[0]),
1659 search_name_hashtable("ANY"), VER_ANY);
1660 if (package_hashtable[deb_file[deb_count]->package] == NULL) {
1661 bb_error_msg_and_die("package %s is uninstalled or unknown", argv[0]);
1663 package_num = deb_file[deb_count]->package;
1664 status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
1665 state_status = get_status(status_num, 3);
1667 /* check package status is "installed" */
1668 if (opt & OPT_remove) {
1669 if (strcmp(name_hashtable[state_status], "not-installed") == 0
1670 || strcmp(name_hashtable[state_status], "config-files") == 0
1672 bb_error_msg_and_die("%s is already removed", name_hashtable[package_hashtable[package_num]->name]);
1674 set_status(status_num, "deinstall", 1);
1675 } else if (opt & OPT_purge) {
1676 /* if package status is "conf-files" then its ok */
1677 if (strcmp(name_hashtable[state_status], "not-installed") == 0) {
1678 bb_error_msg_and_die("%s is already purged", name_hashtable[package_hashtable[package_num]->name]);
1680 set_status(status_num, "purge", 1);
1687 bb_error_msg_and_die("no package files specified");
1688 deb_file[deb_count] = NULL;
1690 /* Check that the deb file arguments are installable */
1691 if (!(opt & OPT_force_ignore_depends)) {
1692 if (!check_deps(deb_file, 0, deb_count)) {
1693 bb_error_msg_and_die("dependency check failed");
1697 /* TODO: install or remove packages in the correct dependency order */
1698 for (i = 0; i < deb_count; i++) {
1699 /* Remove or purge packages */
1700 if (opt & OPT_remove) {
1701 remove_package(deb_file[i]->package, 1);
1703 else if (opt & OPT_purge) {
1704 purge_package(deb_file[i]->package);
1706 else if (opt & OPT_unpack) {
1707 unpack_package(deb_file[i]);
1709 else if (opt & OPT_install) {
1710 unpack_package(deb_file[i]);
1711 /* package is configured in second pass below */
1713 else if (opt & OPT_configure) {
1714 configure_package(deb_file[i]);
1717 /* configure installed packages */
1718 if (opt & OPT_install) {
1719 for (i = 0; i < deb_count; i++)
1720 configure_package(deb_file[i]);
1723 write_status_file(deb_file);
1725 if (ENABLE_FEATURE_CLEAN_UP) {
1726 for (i = 0; i < deb_count; i++) {
1727 free(deb_file[i]->control_file);
1728 free(deb_file[i]->filename);
1734 for (i = 0; i < NAME_HASH_PRIME; i++) {
1735 free(name_hashtable[i]);
1738 for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
1739 free_package(package_hashtable[i]);
1742 for (i = 0; i < STATUS_HASH_PRIME; i++) {
1743 free(status_hashtable[i]);
1746 free(status_hashtable);
1747 free(package_hashtable);
1748 free(name_hashtable);
1751 return EXIT_SUCCESS;