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 * parts of the version comparison code is plucked from the real dpkg
10 * application which is licensed GPLv2 and
11 * copyright (c) 1995 Ian Jackson <ian@chiark.greenend.org.uk>
13 * started life as a busybox implementation of udpkg
15 * licensed under gplv2 or later, see file license in this tarball for details.
19 * known difference between busybox dpkg and the official dpkg that i don't
20 * consider important, its worth keeping a note of differences anyway, just to
21 * make it easier to maintain.
22 * - the first value for the confflile: field isnt placed on a new line.
23 * - when installing a package the status: field is placed at the end of the
24 * section, rather than just after the package: field.
26 * bugs that need to be fixed
27 * - (unknown, please let me know when you find any)
33 #include "unarchive.h"
35 /* note: if you vary hash_prime sizes be aware,
36 * 1) tweaking these will have a big effect on how much memory this program uses.
37 * 2) for computational efficiency these hash tables should be at least 20%
38 * larger than the maximum number of elements stored in it.
39 * 3) all _hash_prime's must be a prime number or chaos is assured, if your looking
40 * for a prime, try http://www.utm.edu/research/primes/lists/small/10000.txt
41 * 4) if you go bigger than 15 bits you may get into trouble (untested) as its
42 * sometimes cast to an unsigned, if you go to 16 bit you will overlap
43 * int's and chaos is assured, 16381 is the max prime for 14 bit field
46 /* NAME_HASH_PRIME, Stores package names and versions,
47 * I estimate it should be at least 50% bigger than PACKAGE_HASH_PRIME,
48 * as there a lot of duplicate version numbers */
49 #define NAME_HASH_PRIME 16381
51 /* PACKAGE_HASH_PRIME, Maximum number of unique packages,
52 * It must not be smaller than STATUS_HASH_PRIME,
53 * Currently only packages from status_hashtable are stored in here, but in
54 * future this may be used to store packages not only from a status file,
55 * but an available_hashtable, and even multiple packages files.
56 * Package can be stored more than once if they have different versions.
57 * e.g. The same package may have different versions in the status file
58 * and available file */
59 #define PACKAGE_HASH_PRIME 10007
60 typedef struct edge_s {
61 unsigned operator:4; /* was:3 */
63 unsigned name:16; /* was:14 */
64 unsigned version:16; /* was:14 */
67 typedef struct common_node_s {
68 unsigned name:16; /* was:14 */
69 unsigned version:16; /* was:14 */
70 unsigned num_of_edges:16; /* was:14 */
74 /* Currently it doesnt store packages that have state-status of not-installed
75 * So it only really has to be the size of the maximum number of packages
76 * likely to be installed at any one time, so there is a bit of leeway here */
77 #define STATUS_HASH_PRIME 8191
78 typedef struct status_node_s {
79 unsigned package:16; /* was:14 */ /* has to fit PACKAGE_HASH_PRIME */
80 unsigned status:16; /* was:14 */ /* has to fit STATUS_HASH_PRIME */
86 char *name_hashtable[NAME_HASH_PRIME + 1];
87 common_node_t *package_hashtable[PACKAGE_HASH_PRIME + 1];
88 status_node_t *status_hashtable[STATUS_HASH_PRIME + 1];
90 #define G (*ptr_to_globals)
91 #define name_hashtable (G.name_hashtable )
92 #define package_hashtable (G.package_hashtable)
93 #define status_hashtable (G.status_hashtable )
94 #define INIT_G() do { \
95 SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
99 /* Even numbers are for 'extras', like ored dependencies or null */
102 EDGE_PRE_DEPENDS = 1,
103 EDGE_OR_PRE_DEPENDS = 2,
110 EDGE_RECOMMENDS = 13,
123 typedef struct deb_file_s {
126 unsigned package:16; /* was:14 */
130 static void make_hash(const char *key, unsigned *start, unsigned *decrement, const int hash_prime)
132 unsigned long hash_num = key[0];
133 int len = strlen(key);
136 /* Maybe i should have uses a "proper" hashing algorithm here instead
137 * of making one up myself, seems to be working ok though. */
138 for (i = 1; i < len; i++) {
139 /* shifts the ascii based value and adds it to previous value
140 * shift amount is mod 24 because long int is 32 bit and data
141 * to be shifted is 8, don't want to shift data to where it has
143 hash_num += (key[i] + key[i-1]) << ((key[i] * i) % 24);
145 *start = (unsigned) hash_num % hash_prime;
146 *decrement = (unsigned) 1 + (hash_num % (hash_prime - 1));
149 /* this adds the key to the hash table */
150 static int search_name_hashtable(const char *key)
152 unsigned probe_address;
153 unsigned probe_decrement;
155 make_hash(key, &probe_address, &probe_decrement, NAME_HASH_PRIME);
156 while (name_hashtable[probe_address] != NULL) {
157 if (strcmp(name_hashtable[probe_address], key) == 0) {
158 return probe_address;
160 probe_address -= probe_decrement;
161 if ((int)probe_address < 0) {
162 probe_address += NAME_HASH_PRIME;
165 name_hashtable[probe_address] = xstrdup(key);
166 return probe_address;
169 /* this DOESNT add the key to the hashtable
170 * TODO make it consistent with search_name_hashtable
172 static unsigned search_status_hashtable(const char *key)
174 unsigned probe_address;
175 unsigned probe_decrement;
177 make_hash(key, &probe_address, &probe_decrement, STATUS_HASH_PRIME);
178 while (status_hashtable[probe_address] != NULL) {
179 if (strcmp(key, name_hashtable[package_hashtable[status_hashtable[probe_address]->package]->name]) == 0) {
182 probe_address -= probe_decrement;
183 if ((int)probe_address < 0) {
184 probe_address += STATUS_HASH_PRIME;
187 return probe_address;
190 static int order(char x)
192 return (x == '~' ? -1
196 : (unsigned char)x + 256
200 /* This code is taken from dpkg and modified slightly to work with busybox */
201 static int version_compare_part(const char *val, const char *ref)
206 while (*val || *ref) {
209 while ((*val && !isdigit(*val)) || (*ref && !isdigit(*ref))) {
210 int vc = order(*val);
211 int rc = order(*ref);
224 while (isdigit(*val) && isdigit(*ref)) {
226 first_diff = *val - *ref;
240 /* if ver1 < ver2 return -1,
241 * if ver1 = ver2 return 0,
242 * if ver1 > ver2 return 1,
244 static int version_compare(const unsigned ver1, const unsigned ver2)
246 char *ch_ver1 = name_hashtable[ver1];
247 char *ch_ver2 = name_hashtable[ver2];
248 unsigned long epoch1 = 0, epoch2 = 0;
250 char *deb_ver1, *deb_ver2;
256 colon = strchr(ch_ver1, ':');
258 epoch1 = atoi(ch_ver1);
261 colon = strchr(ch_ver2, ':');
263 epoch2 = atoi(ch_ver2);
266 if (epoch1 < epoch2) {
269 if (epoch1 > epoch2) {
273 /* Compare upstream version */
274 upstream_ver1 = xstrdup(ch_ver1);
275 upstream_ver2 = xstrdup(ch_ver2);
277 /* Chop off debian version, and store for later use */
278 deb_ver1 = strrchr(upstream_ver1, '-');
279 deb_ver2 = strrchr(upstream_ver2, '-');
288 result = version_compare_part(upstream_ver1, upstream_ver2);
290 /* Compare debian versions */
291 result = version_compare_part(deb_ver1, deb_ver2);
298 static int test_version(const unsigned version1, const unsigned version2, const unsigned operator)
300 const int version_result = version_compare(version1, version2);
305 return (version_result == 0);
307 return (version_result < 0);
309 return (version_result <= 0);
311 return (version_result > 0);
313 return (version_result >= 0);
318 static int search_package_hashtable(const unsigned name, const unsigned version, const unsigned operator)
320 unsigned probe_address;
321 unsigned probe_decrement;
323 make_hash(name_hashtable[name], &probe_address, &probe_decrement, PACKAGE_HASH_PRIME);
324 while (package_hashtable[probe_address] != NULL) {
325 if (package_hashtable[probe_address]->name == name) {
326 if (operator == VER_ANY) {
327 return probe_address;
329 if (test_version(package_hashtable[probe_address]->version, version, operator)) {
330 return probe_address;
333 probe_address -= probe_decrement;
334 if ((int)probe_address < 0) {
335 probe_address += PACKAGE_HASH_PRIME;
338 return probe_address;
342 * This function searches through the entire package_hashtable looking
343 * for a package which provides "needle". It returns the index into
344 * the package_hashtable for the providing package.
346 * needle is the index into name_hashtable of the package we are
349 * start_at is the index in the package_hashtable to start looking
350 * at. If start_at is -1 then start at the beginning. This is to allow
351 * for repeated searches since more than one package might provide
354 * FIXME: I don't think this is very efficient, but I thought I'd keep
355 * it simple for now until it proves to be a problem.
357 static int search_for_provides(int needle, int start_at)
361 for (i = start_at + 1; i < PACKAGE_HASH_PRIME; i++) {
362 p = package_hashtable[i];
365 for (j = 0; j < p->num_of_edges; j++)
366 if (p->edge[j]->type == EDGE_PROVIDES && p->edge[j]->name == needle)
373 * Add an edge to a node
375 static void add_edge_to_node(common_node_t *node, edge_t *edge)
377 node->edge = xrealloc_vector(node->edge, 2, node->num_of_edges);
378 node->edge[node->num_of_edges++] = edge;
382 * Create one new node and one new edge for every dependency.
384 * Dependencies which contain multiple alternatives are represented as
385 * an EDGE_OR_PRE_DEPENDS or EDGE_OR_DEPENDS node, followed by a
386 * number of EDGE_PRE_DEPENDS or EDGE_DEPENDS nodes. The name field of
387 * the OR edge contains the full dependency string while the version
388 * field contains the number of EDGE nodes which follow as part of
391 static void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned edge_type)
393 char *line = xstrdup(whole_line);
395 char *line_ptr1 = NULL;
396 char *line_ptr2 = NULL;
404 field = strtok_r(line, ",", &line_ptr1);
406 /* skip leading spaces */
407 field += strspn(field, " ");
408 line2 = xstrdup(field);
409 field2 = strtok_r(line2, "|", &line_ptr2);
411 if ((edge_type == EDGE_DEPENDS || edge_type == EDGE_PRE_DEPENDS)
412 && (strcmp(field, field2) != 0)
414 or_edge = xzalloc(sizeof(edge_t));
415 or_edge->type = edge_type + 1;
416 or_edge->name = search_name_hashtable(field);
417 //or_edge->version = 0; // tracks the number of alternatives
418 add_edge_to_node(parent_node, or_edge);
422 edge = xmalloc(sizeof(edge_t));
423 edge->type = edge_type;
425 /* Skip any extra leading spaces */
426 field2 += strspn(field2, " ");
428 /* Get dependency version info */
429 version = strchr(field2, '(');
430 if (version == NULL) {
431 edge->operator = VER_ANY;
432 /* Get the versions hash number, adding it if the number isnt already in there */
433 edge->version = search_name_hashtable("ANY");
435 /* Skip leading ' ' or '(' */
436 version += strspn(version, " (");
437 /* Calculate length of any operator characters */
438 offset_ch = strspn(version, "<=>");
439 /* Determine operator */
441 if (strncmp(version, "=", offset_ch) == 0) {
442 edge->operator = VER_EQUAL;
443 } else if (strncmp(version, "<<", offset_ch) == 0) {
444 edge->operator = VER_LESS;
445 } else if (strncmp(version, "<=", offset_ch) == 0) {
446 edge->operator = VER_LESS_EQUAL;
447 } else if (strncmp(version, ">>", offset_ch) == 0) {
448 edge->operator = VER_MORE;
449 } else if (strncmp(version, ">=", offset_ch) == 0) {
450 edge->operator = VER_MORE_EQUAL;
452 bb_error_msg_and_die("illegal operator");
455 /* skip to start of version numbers */
456 version += offset_ch;
457 version += strspn(version, " ");
459 /* Truncate version at trailing ' ' or ')' */
460 version[strcspn(version, " )")] = '\0';
461 /* Get the versions hash number, adding it if the number isnt already in there */
462 edge->version = search_name_hashtable(version);
465 /* Get the dependency name */
466 field2[strcspn(field2, " (")] = '\0';
467 edge->name = search_name_hashtable(field2);
472 add_edge_to_node(parent_node, edge);
473 field2 = strtok_r(NULL, "|", &line_ptr2);
474 } while (field2 != NULL);
477 field = strtok_r(NULL, ",", &line_ptr1);
478 } while (field != NULL);
483 static void free_package(common_node_t *node)
487 for (i = 0; i < node->num_of_edges; i++) {
496 * Gets the next package field from package_buffer, separated into the field name
497 * and field value, it returns the int offset to the first character of the next field
499 static int read_package_field(const char *package_buffer, char **field_name, char **field_value)
501 int offset_name_start = 0;
502 int offset_name_end = 0;
503 int offset_value_start = 0;
504 int offset_value_end = 0;
509 int exit_flag = FALSE;
511 if (package_buffer == NULL) {
517 next_offset = offset + 1;
518 switch (package_buffer[offset]) {
523 if (offset_name_end == 0) {
524 offset_name_end = offset;
525 offset_value_start = next_offset;
527 /* TODO: Name might still have trailing spaces if ':' isnt
528 * immediately after name */
531 /* TODO: The char next_offset may be out of bounds */
532 if (package_buffer[next_offset] != ' ') {
538 /* increment the value start point if its a just filler */
539 if (offset_name_start == offset) {
542 if (offset_value_start == offset) {
543 offset_value_start++;
548 /* Check that the names are valid */
549 offset_value_end = offset;
550 name_length = offset_name_end - offset_name_start;
551 value_length = offset_value_end - offset_value_start;
552 if (name_length == 0) {
555 if ((name_length > 0) && (value_length > 0)) {
559 /* If not valid, start fresh with next field */
561 offset_name_start = offset + 1;
563 offset_value_start = offset + 1;
564 offset_value_end = offset + 1;
571 *field_name = xstrndup(&package_buffer[offset_name_start], name_length);
574 if (value_length > 0) {
575 *field_value = xstrndup(&package_buffer[offset_value_start], value_length);
580 static unsigned fill_package_struct(char *control_buffer)
582 static const char field_names[] ALIGN1 =
583 "Package\0""Version\0"
584 "Pre-Depends\0""Depends\0""Replaces\0""Provides\0"
585 "Conflicts\0""Suggests\0""Recommends\0""Enhances\0";
587 common_node_t *new_node = xzalloc(sizeof(common_node_t));
592 int buffer_length = strlen(control_buffer);
594 new_node->version = search_name_hashtable("unknown");
595 while (field_start < buffer_length) {
598 field_start += read_package_field(&control_buffer[field_start],
599 &field_name, &field_value);
601 if (field_name == NULL) {
602 goto fill_package_struct_cleanup;
605 field_num = index_in_strings(field_names, field_name);
607 case 0: /* Package */
608 new_node->name = search_name_hashtable(field_value);
610 case 1: /* Version */
611 new_node->version = search_name_hashtable(field_value);
613 case 2: /* Pre-Depends */
614 add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
616 case 3: /* Depends */
617 add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
619 case 4: /* Replaces */
620 add_split_dependencies(new_node, field_value, EDGE_REPLACES);
622 case 5: /* Provides */
623 add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
625 case 6: /* Conflicts */
626 add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
628 case 7: /* Suggests */
629 add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
631 case 8: /* Recommends */
632 add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
634 case 9: /* Enhances */
635 add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
638 fill_package_struct_cleanup:
643 if (new_node->version == search_name_hashtable("unknown")) {
644 free_package(new_node);
647 num = search_package_hashtable(new_node->name, new_node->version, VER_EQUAL);
648 free_package(package_hashtable[num]);
649 package_hashtable[num] = new_node;
653 /* if num = 1, it returns the want status, 2 returns flag, 3 returns status */
654 static unsigned get_status(const unsigned status_node, const int num)
656 char *status_string = name_hashtable[status_hashtable[status_node]->status];
657 char *state_sub_string;
658 unsigned state_sub_num;
662 /* set tmp_string to point to the start of the word number */
663 for (i = 1; i < num; i++) {
664 /* skip past a word */
665 status_string += strcspn(status_string, " ");
666 /* skip past the separating spaces */
667 status_string += strspn(status_string, " ");
669 len = strcspn(status_string, " \n");
670 state_sub_string = xstrndup(status_string, len);
671 state_sub_num = search_name_hashtable(state_sub_string);
672 free(state_sub_string);
673 return state_sub_num;
676 static void set_status(const unsigned status_node_num, const char *new_value, const int position)
678 const unsigned new_value_len = strlen(new_value);
679 const unsigned new_value_num = search_name_hashtable(new_value);
680 unsigned want = get_status(status_node_num, 1);
681 unsigned flag = get_status(status_node_num, 2);
682 unsigned status = get_status(status_node_num, 3);
683 int want_len = strlen(name_hashtable[want]);
684 int flag_len = strlen(name_hashtable[flag]);
685 int status_len = strlen(name_hashtable[status]);
690 want = new_value_num;
691 want_len = new_value_len;
694 flag = new_value_num;
695 flag_len = new_value_len;
698 status = new_value_num;
699 status_len = new_value_len;
702 bb_error_msg_and_die("DEBUG ONLY: this shouldnt happen");
705 new_status = xasprintf("%s %s %s", name_hashtable[want], name_hashtable[flag], name_hashtable[status]);
706 status_hashtable[status_node_num]->status = search_name_hashtable(new_status);
710 static const char *describe_status(int status_num)
712 int status_want, status_state;
713 if (status_hashtable[status_num] == NULL || status_hashtable[status_num]->status == 0)
714 return "is not installed or flagged to be installed";
716 status_want = get_status(status_num, 1);
717 status_state = get_status(status_num, 3);
719 if (status_state == search_name_hashtable("installed")) {
720 if (status_want == search_name_hashtable("install"))
721 return "is installed";
722 if (status_want == search_name_hashtable("deinstall"))
723 return "is marked to be removed";
724 if (status_want == search_name_hashtable("purge"))
725 return "is marked to be purged";
727 if (status_want == search_name_hashtable("unknown"))
728 return "is in an indeterminate state";
729 if (status_want == search_name_hashtable("install"))
730 return "is marked to be installed";
732 return "is not installed or flagged to be installed";
735 static void index_status_file(const char *filename)
738 char *control_buffer;
740 status_node_t *status_node = NULL;
743 status_file = xfopen_for_read(filename);
744 while ((control_buffer = xmalloc_fgetline_str(status_file, "\n\n")) != NULL) {
745 const unsigned package_num = fill_package_struct(control_buffer);
746 if (package_num != -1) {
747 status_node = xmalloc(sizeof(status_node_t));
748 /* fill_package_struct doesnt handle the status field */
749 status_line = strstr(control_buffer, "Status:");
750 if (status_line != NULL) {
752 status_line += strspn(status_line, " \n\t");
753 status_line = xstrndup(status_line, strcspn(status_line, "\n"));
754 status_node->status = search_name_hashtable(status_line);
757 status_node->package = package_num;
758 status_num = search_status_hashtable(name_hashtable[package_hashtable[status_node->package]->name]);
759 status_hashtable[status_num] = status_node;
761 free(control_buffer);
766 static void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
772 start += read_package_field(&control_buffer[start], &name, &value);
776 if (strcmp(name, "Status") != 0) {
777 fprintf(new_status_file, "%s: %s\n", name, value);
782 /* This could do with a cleanup */
783 static void write_status_file(deb_file_t **deb_file)
785 FILE *old_status_file = xfopen_for_read("/var/lib/dpkg/status");
786 FILE *new_status_file = xfopen_for_write("/var/lib/dpkg/status.udeb");
788 char *status_from_file;
789 char *control_buffer = NULL;
796 /* Update previously known packages */
797 while ((control_buffer = xmalloc_fgetline_str(old_status_file, "\n\n")) != NULL) {
798 tmp_string = strstr(control_buffer, "Package:");
799 if (tmp_string == NULL) {
804 tmp_string += strspn(tmp_string, " \n\t");
805 package_name = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
807 tmp_string = strstr(control_buffer, "Status:");
808 if (tmp_string != NULL) {
809 /* Separate the status value from the control buffer */
811 tmp_string += strspn(tmp_string, " \n\t");
812 status_from_file = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
814 status_from_file = NULL;
817 /* Find this package in the status hashtable */
818 status_num = search_status_hashtable(package_name);
819 if (status_hashtable[status_num] != NULL) {
820 const char *status_from_hashtable = name_hashtable[status_hashtable[status_num]->status];
821 if (strcmp(status_from_file, status_from_hashtable) != 0) {
822 /* New status isnt exactly the same as old status */
823 const int state_status = get_status(status_num, 3);
824 if ((strcmp("installed", name_hashtable[state_status]) == 0)
825 || (strcmp("unpacked", name_hashtable[state_status]) == 0)
827 /* We need to add the control file from the package */
829 while (deb_file[i] != NULL) {
830 if (strcmp(package_name, name_hashtable[package_hashtable[deb_file[i]->package]->name]) == 0) {
831 /* Write a status file entry with a modified status */
832 /* remove trailing \n's */
833 write_buffer_no_status(new_status_file, deb_file[i]->control_file);
834 set_status(status_num, "ok", 2);
835 fprintf(new_status_file, "Status: %s\n\n",
836 name_hashtable[status_hashtable[status_num]->status]);
842 /* This is temperary, debugging only */
843 if (deb_file[i] == NULL) {
844 bb_error_msg_and_die("ALERT: cannot find a control file, "
845 "your status file may be broken, status may be "
846 "incorrect for %s", package_name);
849 else if (strcmp("not-installed", name_hashtable[state_status]) == 0) {
850 /* Only write the Package, Status, Priority and Section lines */
851 fprintf(new_status_file, "Package: %s\n", package_name);
852 fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
857 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
858 if (field_name == NULL) {
861 if ((strcmp(field_name, "Priority") == 0) ||
862 (strcmp(field_name, "Section") == 0)) {
863 fprintf(new_status_file, "%s: %s\n", field_name, field_value);
867 fputs("\n", new_status_file);
869 else if (strcmp("config-files", name_hashtable[state_status]) == 0) {
870 /* only change the status line */
874 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
875 if (field_name == NULL) {
878 /* Setup start point for next field */
879 if (strcmp(field_name, "Status") == 0) {
880 fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
882 fprintf(new_status_file, "%s: %s\n", field_name, field_value);
886 fputs("\n", new_status_file);
890 /* If the package from the status file wasnt handle above, do it now*/
892 fprintf(new_status_file, "%s\n\n", control_buffer);
895 free(status_from_file);
897 free(control_buffer);
900 /* Write any new packages */
901 for (i = 0; deb_file[i] != NULL; i++) {
902 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[i]->package]->name]);
903 if (strcmp("reinstreq", name_hashtable[get_status(status_num, 2)]) == 0) {
904 write_buffer_no_status(new_status_file, deb_file[i]->control_file);
905 set_status(status_num, "ok", 2);
906 fprintf(new_status_file, "Status: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
909 fclose(old_status_file);
910 fclose(new_status_file);
912 /* Create a separate backfile to dpkg */
913 if (rename("/var/lib/dpkg/status", "/var/lib/dpkg/status.udeb.bak") == -1) {
915 bb_error_msg_and_die("can't create backup status file");
916 /* Its ok if renaming the status file fails because status
917 * file doesnt exist, maybe we are starting from scratch */
918 bb_error_msg("no status file found, creating new one");
921 xrename("/var/lib/dpkg/status.udeb", "/var/lib/dpkg/status");
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_vector(conflicts, 2, conflicts_num);
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_vector(conflicts, 2, conflicts_num);
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
1070 ) { /* start an EDGE_OR_ list */
1071 number_of_alternatives = package_edge->version;
1072 root_of_alternatives = package_edge;
1075 if (number_of_alternatives == 0) { /* not in the middle of an EDGE_OR_ list */
1076 number_of_alternatives = 1;
1077 root_of_alternatives = NULL;
1080 package_num = search_package_hashtable(package_edge->name, package_edge->version, package_edge->operator);
1082 if (package_edge->type == EDGE_PRE_DEPENDS ||
1083 package_edge->type == EDGE_DEPENDS) {
1087 /* If we are inside an alternative then check
1088 * this edge is the right type.
1090 * EDGE_DEPENDS == OR_DEPENDS -1
1091 * EDGE_PRE_DEPENDS == OR_PRE_DEPENDS -1
1093 if (root_of_alternatives && package_edge->type != root_of_alternatives->type - 1)
1094 bb_error_msg_and_die("fatal error, package dependencies corrupt: %d != %d - 1",
1095 package_edge->type, root_of_alternatives->type);
1097 if (package_hashtable[package_num] != NULL)
1098 result = !package_satisfies_dependency(package_num, package_edge->type);
1100 if (result) { /* check for other package which provide what we are looking for */
1103 while ((provider = search_for_provides(package_edge->name, provider)) > -1) {
1104 if (package_hashtable[provider] == NULL) {
1105 puts("Have a provider but no package information for it");
1108 result = !package_satisfies_dependency(provider, package_edge->type);
1115 /* It must be already installed, or to be installed */
1116 number_of_alternatives--;
1117 if (result && number_of_alternatives == 0) {
1118 if (root_of_alternatives)
1119 bb_error_msg_and_die(
1120 "package %s %sdepends on %s, "
1121 "which cannot be satisfied",
1122 name_hashtable[package_node->name],
1123 package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1124 name_hashtable[root_of_alternatives->name]);
1125 bb_error_msg_and_die(
1126 "package %s %sdepends on %s, which %s\n",
1127 name_hashtable[package_node->name],
1128 package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1129 name_hashtable[package_edge->name],
1130 describe_status(status_num));
1132 if (result == 0 && number_of_alternatives) {
1133 /* we've found a package which
1134 * satisfies the dependency,
1135 * so skip over the rest of
1138 j += number_of_alternatives;
1139 number_of_alternatives = 0;
1148 static char **create_list(const char *filename)
1155 /* don't use [xw]fopen here, handle error ourself */
1156 list_stream = fopen_for_read(filename);
1157 if (list_stream == NULL) {
1163 while ((line = xmalloc_fgetline(list_stream)) != NULL) {
1164 file_list = xrealloc_vector(file_list, 2, count);
1165 file_list[count++] = line;
1166 /*file_list[count] = NULL; - xrealloc_vector did it */
1168 fclose(list_stream);
1173 /* maybe i should try and hook this into remove_file.c somehow */
1174 static int remove_file_array(char **remove_names, char **exclude_names)
1176 struct stat path_stat;
1177 int remove_flag = 1; /* not removed anything yet */
1180 if (remove_names == NULL) {
1183 for (i = 0; remove_names[i] != NULL; i++) {
1184 if (exclude_names != NULL) {
1185 for (j = 0; exclude_names[j] != NULL; j++) {
1186 if (strcmp(remove_names[i], exclude_names[j]) == 0) {
1191 /* TODO: why we are checking lstat? we can just try rm/rmdir */
1192 if (lstat(remove_names[i], &path_stat) < 0) {
1195 if (S_ISDIR(path_stat.st_mode)) {
1196 remove_flag &= rmdir(remove_names[i]); /* 0 if no error */
1198 remove_flag &= unlink(remove_names[i]); /* 0 if no error */
1203 return (remove_flag == 0);
1206 static void run_package_script_or_die(const char *package_name, const char *script_type)
1211 script_path = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, script_type);
1213 /* If the file doesnt exist is isnt fatal */
1214 result = access(script_path, F_OK) ? EXIT_SUCCESS : system(script_path);
1217 bb_error_msg_and_die("%s failed, exit code %d", script_type, result);
1221 The policy manual defines what scripts get called when and with
1222 what arguments. I realize that busybox does not support all of
1223 these scenarios, but it does support some of them; it does not,
1224 however, run them with any parameters in run_package_script_or_die().
1225 Here are the scripts:
1228 preinst install <old_version>
1229 preinst upgrade <old_version>
1230 preinst abort_upgrade <new_version>
1231 postinst configure <most_recent_version>
1232 postinst abort-upgade <new_version>
1233 postinst abort-remove
1234 postinst abort-remove in-favour <package> <version>
1235 postinst abort-deconfigure in-favor <failed_install_package> removing <conflicting_package> <version>
1237 prerm upgrade <new_version>
1238 prerm failed-upgrade <old_version>
1239 prerm remove in-favor <package> <new_version>
1240 prerm deconfigure in-favour <package> <version> removing <package> <version>
1243 postrm upgrade <new_version>
1244 postrm failed-upgrade <old_version>
1245 postrm abort-install
1246 postrm abort-install <old_version>
1247 postrm abort-upgrade <old_version>
1248 postrm disappear <overwriter> <version>
1250 static const char *const all_control_files[] = {
1251 "preinst", "postinst", "prerm", "postrm",
1252 "list", "md5sums", "shlibs", "conffiles",
1253 "config", "templates"
1256 static char **all_control_list(const char *package_name)
1259 char **remove_files;
1261 /* Create a list of all /var/lib/dpkg/info/<package> files */
1262 remove_files = xzalloc(sizeof(all_control_files) + sizeof(char*));
1263 while (i < ARRAY_SIZE(all_control_files)) {
1264 remove_files[i] = xasprintf("/var/lib/dpkg/info/%s.%s",
1265 package_name, all_control_files[i]);
1269 return remove_files;
1272 static void free_array(char **array)
1284 /* This function lists information on the installed packages. It loops through
1285 * the status_hashtable to retrieve the info. This results in smaller code than
1286 * scanning the status file. The resulting list, however, is unsorted.
1288 static void list_packages(const char *pattern)
1292 puts(" Name Version");
1293 puts("+++-==============-==============");
1295 /* go through status hash, dereference package hash and finally strings */
1296 for (i = 0; i < STATUS_HASH_PRIME+1; i++) {
1297 if (status_hashtable[i]) {
1298 const char *stat_str; /* status string */
1299 const char *name_str; /* package name */
1300 const char *vers_str; /* version */
1301 char s1, s2; /* status abbreviations */
1302 int spccnt; /* space count */
1305 stat_str = name_hashtable[status_hashtable[i]->status];
1306 name_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->name];
1307 vers_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->version];
1309 if (pattern && fnmatch(pattern, name_str, 0))
1312 /* get abbreviation for status field 1 */
1313 s1 = stat_str[0] == 'i' ? 'i' : 'r';
1315 /* get abbreviation for status field 2 */
1316 for (j = 0, spccnt = 0; stat_str[j] && spccnt < 2; j++) {
1317 if (stat_str[j] == ' ') spccnt++;
1321 /* print out the line formatted like Debian dpkg */
1322 printf("%c%c %-14s %s\n", s1, s2, name_str, vers_str);
1327 static void remove_package(const unsigned package_num, int noisy)
1329 const char *package_name = name_hashtable[package_hashtable[package_num]->name];
1330 const char *package_version = name_hashtable[package_hashtable[package_num]->version];
1331 const unsigned status_num = search_status_hashtable(package_name);
1332 const int package_name_length = strlen(package_name);
1333 char **remove_files;
1334 char **exclude_files;
1335 char list_name[package_name_length + 25];
1336 char conffile_name[package_name_length + 30];
1339 printf("Removing %s (%s)...\n", package_name, package_version);
1341 /* Run prerm script */
1342 run_package_script_or_die(package_name, "prerm");
1344 /* Create a list of files to remove, and a separate list of those to keep */
1345 sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list");
1346 remove_files = create_list(list_name);
1348 sprintf(conffile_name, "/var/lib/dpkg/info/%s.%s", package_name, "conffiles");
1349 exclude_files = create_list(conffile_name);
1351 /* Some directories can't be removed straight away, so do multiple passes */
1352 while (remove_file_array(remove_files, exclude_files))
1354 free_array(exclude_files);
1355 free_array(remove_files);
1357 /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep */
1358 exclude_files = xzalloc(sizeof(exclude_files[0]) * 3);
1359 exclude_files[0] = xstrdup(conffile_name);
1360 exclude_files[1] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "postrm");
1362 /* Create a list of all /var/lib/dpkg/info/<package> files */
1363 remove_files = all_control_list(package_name);
1365 remove_file_array(remove_files, exclude_files);
1366 free_array(remove_files);
1367 free_array(exclude_files);
1369 /* rename <package>.conffiles to <package>.list
1370 * The conffiles control file isn't required in Debian packages, so don't
1371 * error out if it's missing. */
1372 rename(conffile_name, list_name);
1374 /* Change package status */
1375 set_status(status_num, "config-files", 3);
1378 static void purge_package(const unsigned package_num)
1380 const char *package_name = name_hashtable[package_hashtable[package_num]->name];
1381 const char *package_version = name_hashtable[package_hashtable[package_num]->version];
1382 const unsigned status_num = search_status_hashtable(package_name);
1383 char **remove_files;
1384 char **exclude_files;
1385 char list_name[strlen(package_name) + 25];
1387 printf("Purging %s (%s)...\n", package_name, package_version);
1389 /* Run prerm script */
1390 run_package_script_or_die(package_name, "prerm");
1392 /* Create a list of files to remove */
1393 sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list");
1394 remove_files = create_list(list_name);
1396 /* Some directories cant be removed straight away, so do multiple passes */
1397 while (remove_file_array(remove_files, NULL))
1399 free_array(remove_files);
1401 /* Create a list of all /var/lib/dpkg/info/<package> files */
1402 remove_files = all_control_list(package_name);
1404 /* Delete all of them except the postrm script */
1405 exclude_files = xzalloc(sizeof(exclude_files[0]) * 2);
1406 exclude_files[0] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "postrm");
1407 remove_file_array(remove_files, exclude_files);
1408 free_array(exclude_files);
1410 /* Run and remove postrm script */
1411 run_package_script_or_die(package_name, "postrm");
1412 remove_file_array(remove_files, NULL);
1414 free_array(remove_files);
1416 /* Change package status */
1417 set_status(status_num, "not-installed", 3);
1420 static archive_handle_t *init_archive_deb_ar(const char *filename)
1422 archive_handle_t *ar_handle;
1424 /* Setup an ar archive handle that refers to the gzip sub archive */
1425 ar_handle = init_handle();
1426 ar_handle->filter = filter_accept_list_reassign;
1427 ar_handle->src_fd = xopen(filename, O_RDONLY);
1432 static void init_archive_deb_control(archive_handle_t *ar_handle)
1434 archive_handle_t *tar_handle;
1436 /* Setup the tar archive handle */
1437 tar_handle = init_handle();
1438 tar_handle->src_fd = ar_handle->src_fd;
1440 /* We don't care about data.tar.* or debian-binary, just control.tar.* */
1441 #if ENABLE_FEATURE_SEAMLESS_GZ
1442 llist_add_to(&(ar_handle->accept), (char*)"control.tar.gz");
1444 #if ENABLE_FEATURE_SEAMLESS_BZ2
1445 llist_add_to(&(ar_handle->accept), (char*)"control.tar.bz2");
1448 /* Assign the tar handle as a subarchive of the ar handle */
1449 ar_handle->sub_archive = tar_handle;
1452 static void init_archive_deb_data(archive_handle_t *ar_handle)
1454 archive_handle_t *tar_handle;
1456 /* Setup the tar archive handle */
1457 tar_handle = init_handle();
1458 tar_handle->src_fd = ar_handle->src_fd;
1460 /* We don't care about control.tar.* or debian-binary, just data.tar.* */
1461 #if ENABLE_FEATURE_SEAMLESS_GZ
1462 llist_add_to(&(ar_handle->accept), (char*)"data.tar.gz");
1464 #if ENABLE_FEATURE_SEAMLESS_BZ2
1465 llist_add_to(&(ar_handle->accept), (char*)"data.tar.bz2");
1468 /* Assign the tar handle as a subarchive of the ar handle */
1469 ar_handle->sub_archive = tar_handle;
1472 static void FAST_FUNC data_extract_to_buffer(archive_handle_t *archive_handle)
1474 unsigned size = archive_handle->file_header->size;
1476 archive_handle->ah_buffer = xzalloc(size + 1);
1477 xread(archive_handle->src_fd, archive_handle->ah_buffer, size);
1480 static char *deb_extract_control_file_to_buffer(archive_handle_t *ar_handle, llist_t *myaccept)
1482 ar_handle->sub_archive->action_data = data_extract_to_buffer;
1483 ar_handle->sub_archive->accept = myaccept;
1484 ar_handle->sub_archive->filter = filter_accept_list;
1486 unpack_ar_archive(ar_handle);
1487 close(ar_handle->src_fd);
1489 return ar_handle->sub_archive->ah_buffer;
1492 static void FAST_FUNC data_extract_all_prefix(archive_handle_t *archive_handle)
1494 char *name_ptr = archive_handle->file_header->name;
1496 name_ptr += strspn(name_ptr, "./");
1497 if (name_ptr[0] != '\0') {
1498 archive_handle->file_header->name = xasprintf("%s%s", archive_handle->ah_buffer, name_ptr);
1499 data_extract_all(archive_handle);
1503 static void unpack_package(deb_file_t *deb_file)
1505 const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
1506 const unsigned status_num = search_status_hashtable(package_name);
1507 const unsigned status_package_num = status_hashtable[status_num]->package;
1509 char *list_filename;
1510 archive_handle_t *archive_handle;
1512 llist_t *accept_list;
1515 /* If existing version, remove it first */
1516 if (strcmp(name_hashtable[get_status(status_num, 3)], "installed") == 0) {
1517 /* Package is already installed, remove old version first */
1518 printf("Preparing to replace %s %s (using %s)...\n", package_name,
1519 name_hashtable[package_hashtable[status_package_num]->version],
1520 deb_file->filename);
1521 remove_package(status_package_num, 0);
1523 printf("Unpacking %s (from %s)...\n", package_name, deb_file->filename);
1526 /* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */
1527 info_prefix = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "");
1528 archive_handle = init_archive_deb_ar(deb_file->filename);
1529 init_archive_deb_control(archive_handle);
1533 while (i < ARRAY_SIZE(all_control_files)) {
1534 char *c = xasprintf("./%s", all_control_files[i]);
1535 llist_add_to(&accept_list, c);
1538 archive_handle->sub_archive->accept = accept_list;
1539 archive_handle->sub_archive->filter = filter_accept_list;
1540 archive_handle->sub_archive->action_data = data_extract_all_prefix;
1541 archive_handle->sub_archive->ah_buffer = info_prefix;
1542 archive_handle->sub_archive->ah_flags |= ARCHIVE_UNLINK_OLD;
1543 unpack_ar_archive(archive_handle);
1545 /* Run the preinst prior to extracting */
1546 run_package_script_or_die(package_name, "preinst");
1548 /* Extract data.tar.gz to the root directory */
1549 archive_handle = init_archive_deb_ar(deb_file->filename);
1550 init_archive_deb_data(archive_handle);
1551 archive_handle->sub_archive->action_data = data_extract_all_prefix;
1552 archive_handle->sub_archive->ah_buffer = (char*)"/"; /* huh? */
1553 archive_handle->sub_archive->ah_flags |= ARCHIVE_UNLINK_OLD;
1554 unpack_ar_archive(archive_handle);
1556 /* Create the list file */
1557 list_filename = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "list");
1558 out_stream = xfopen_for_write(list_filename);
1559 while (archive_handle->sub_archive->passed) {
1560 /* the leading . has been stripped by data_extract_all_prefix already */
1561 fputs(archive_handle->sub_archive->passed->data, out_stream);
1562 fputc('\n', out_stream);
1563 archive_handle->sub_archive->passed = archive_handle->sub_archive->passed->link;
1568 set_status(status_num, "install", 1);
1569 set_status(status_num, "unpacked", 3);
1572 free(list_filename);
1575 static void configure_package(deb_file_t *deb_file)
1577 const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
1578 const char *package_version = name_hashtable[package_hashtable[deb_file->package]->version];
1579 const int status_num = search_status_hashtable(package_name);
1581 printf("Setting up %s (%s)...\n", package_name, package_version);
1583 /* Run the postinst script */
1584 /* TODO: handle failure gracefully */
1585 run_package_script_or_die(package_name, "postinst");
1587 /* Change status to reflect success */
1588 set_status(status_num, "install", 1);
1589 set_status(status_num, "installed", 3);
1592 int dpkg_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
1593 int dpkg_main(int argc UNUSED_PARAM, char **argv)
1595 deb_file_t **deb_file = NULL;
1596 status_node_t *status_node;
1605 OPT_configure = 0x1,
1606 OPT_force_ignore_depends = 0x2,
1608 OPT_list_installed = 0x8,
1616 opt = getopt32(argv, "CF:ilPru", &str_f);
1617 //if (opt & OPT_configure) ... // -C
1618 if (opt & OPT_force_ignore_depends) { // -F (--force in official dpkg)
1619 if (strcmp(str_f, "depends"))
1620 opt &= ~OPT_force_ignore_depends;
1622 //if (opt & OPT_install) ... // -i
1623 //if (opt & OPT_list_installed) ... // -l
1624 //if (opt & OPT_purge) ... // -P
1625 //if (opt & OPT_remove) ... // -r
1626 //if (opt & OPT_unpack) ... // -u (--unpack in official dpkg)
1628 /* check for non-option argument if expected */
1629 if (!opt || (!argv[0] && !(opt && OPT_list_installed)))
1632 /* puts("(Reading database ... xxxxx files and directories installed.)"); */
1633 index_status_file("/var/lib/dpkg/status");
1635 /* if the list action was given print the installed packages and exit */
1636 if (opt & OPT_list_installed) {
1637 list_packages(argv[0]);
1638 return EXIT_SUCCESS;
1641 /* Read arguments and store relevant info in structs */
1643 /* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */
1644 deb_file = xrealloc_vector(deb_file, 2, deb_count);
1645 deb_file[deb_count] = xzalloc(sizeof(deb_file[0][0]));
1646 if (opt & (OPT_install | OPT_unpack)) {
1647 /* -i/-u: require filename */
1648 archive_handle_t *archive_handle;
1649 llist_t *control_list = NULL;
1651 /* Extract the control file */
1652 llist_add_to(&control_list, (char*)"./control");
1653 archive_handle = init_archive_deb_ar(argv[0]);
1654 init_archive_deb_control(archive_handle);
1655 deb_file[deb_count]->control_file = deb_extract_control_file_to_buffer(archive_handle, control_list);
1656 if (deb_file[deb_count]->control_file == NULL) {
1657 bb_error_msg_and_die("can't extract control file");
1659 deb_file[deb_count]->filename = xstrdup(argv[0]);
1660 package_num = fill_package_struct(deb_file[deb_count]->control_file);
1662 if (package_num == -1) {
1663 bb_error_msg("invalid control file in %s", argv[0]);
1667 deb_file[deb_count]->package = (unsigned) package_num;
1669 /* Add the package to the status hashtable */
1670 if (opt & (OPT_unpack | OPT_install)) {
1671 /* Try and find a currently installed version of this package */
1672 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
1673 /* If no previous entry was found initialise a new entry */
1674 if (status_hashtable[status_num] == NULL
1675 || status_hashtable[status_num]->status == 0
1677 status_node = xmalloc(sizeof(status_node_t));
1678 status_node->package = deb_file[deb_count]->package;
1679 /* reinstreq isnt changed to "ok" until the package control info
1680 * is written to the status file*/
1681 status_node->status = search_name_hashtable("install reinstreq not-installed");
1682 status_hashtable[status_num] = status_node;
1684 set_status(status_num, "install", 1);
1685 set_status(status_num, "reinstreq", 2);
1688 } else if (opt & (OPT_configure | OPT_purge | OPT_remove)) {
1689 /* -C/-p/-r: require package name */
1690 deb_file[deb_count]->package = search_package_hashtable(
1691 search_name_hashtable(argv[0]),
1692 search_name_hashtable("ANY"), VER_ANY);
1693 if (package_hashtable[deb_file[deb_count]->package] == NULL) {
1694 bb_error_msg_and_die("package %s is uninstalled or unknown", argv[0]);
1696 package_num = deb_file[deb_count]->package;
1697 status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
1698 state_status = get_status(status_num, 3);
1700 /* check package status is "installed" */
1701 if (opt & OPT_remove) {
1702 if (strcmp(name_hashtable[state_status], "not-installed") == 0
1703 || strcmp(name_hashtable[state_status], "config-files") == 0
1705 bb_error_msg_and_die("%s is already removed", name_hashtable[package_hashtable[package_num]->name]);
1707 set_status(status_num, "deinstall", 1);
1708 } else if (opt & OPT_purge) {
1709 /* if package status is "conf-files" then its ok */
1710 if (strcmp(name_hashtable[state_status], "not-installed") == 0) {
1711 bb_error_msg_and_die("%s is already purged", name_hashtable[package_hashtable[package_num]->name]);
1713 set_status(status_num, "purge", 1);
1720 bb_error_msg_and_die("no package files specified");
1721 deb_file[deb_count] = NULL;
1723 /* Check that the deb file arguments are installable */
1724 if (!(opt & OPT_force_ignore_depends)) {
1725 if (!check_deps(deb_file, 0 /*, deb_count*/)) {
1726 bb_error_msg_and_die("dependency check failed");
1730 /* TODO: install or remove packages in the correct dependency order */
1731 for (i = 0; i < deb_count; i++) {
1732 /* Remove or purge packages */
1733 if (opt & OPT_remove) {
1734 remove_package(deb_file[i]->package, 1);
1736 else if (opt & OPT_purge) {
1737 purge_package(deb_file[i]->package);
1739 else if (opt & OPT_unpack) {
1740 unpack_package(deb_file[i]);
1742 else if (opt & OPT_install) {
1743 unpack_package(deb_file[i]);
1744 /* package is configured in second pass below */
1746 else if (opt & OPT_configure) {
1747 configure_package(deb_file[i]);
1750 /* configure installed packages */
1751 if (opt & OPT_install) {
1752 for (i = 0; i < deb_count; i++)
1753 configure_package(deb_file[i]);
1756 write_status_file(deb_file);
1758 if (ENABLE_FEATURE_CLEAN_UP) {
1759 for (i = 0; i < deb_count; i++) {
1760 free(deb_file[i]->control_file);
1761 free(deb_file[i]->filename);
1767 for (i = 0; i < NAME_HASH_PRIME; i++) {
1768 free(name_hashtable[i]);
1771 for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
1772 free_package(package_hashtable[i]);
1775 for (i = 0; i < STATUS_HASH_PRIME; i++) {
1776 free(status_hashtable[i]);
1779 free(status_hashtable);
1780 free(package_hashtable);
1781 free(name_hashtable);
1784 return EXIT_SUCCESS;