blob: ee5bd7affe25e9b65ecbeae06f4abe532013b405 [file] [log] [blame]
"Robert P. J. Day"63fc1a92006-07-02 19:47:05 +00001/* vi: set sw=4 ts=4: */
Glenn L McGrathccd65c92001-07-13 18:35:24 +00002/*
Rob Landleyd921b2e2006-08-03 15:41:12 +00003 * mini dpkg implementation for busybox.
4 * this is not meant as a replacement for dpkg
Glenn L McGrathccd65c92001-07-13 18:35:24 +00005 *
Rob Landleyd921b2e2006-08-03 15:41:12 +00006 * written by glenn mcgrath with the help of others
7 * copyright (c) 2001 by glenn mcgrath
Eric Andersenc7bda1c2004-03-15 08:29:22 +00008 *
Rob Landleyd921b2e2006-08-03 15:41:12 +00009 * started life as a busybox implementation of udpkg
Glenn L McGrathccd65c92001-07-13 18:35:24 +000010 *
Rob Landleyd921b2e2006-08-03 15:41:12 +000011 * licensed under gplv2 or later, see file license in this tarball for details.
Glenn L McGrathccd65c92001-07-13 18:35:24 +000012 */
Glenn L McGrath649968c2001-02-10 14:26:48 +000013
Glenn L McGrathccd65c92001-07-13 18:35:24 +000014/*
Rob Landleyd921b2e2006-08-03 15:41:12 +000015 * known difference between busybox dpkg and the official dpkg that i don't
Glenn L McGrathccd65c92001-07-13 18:35:24 +000016 * consider important, its worth keeping a note of differences anyway, just to
17 * make it easier to maintain.
Rob Landleyd921b2e2006-08-03 15:41:12 +000018 * - 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.
Glenn L McGrathccd65c92001-07-13 18:35:24 +000021 *
Rob Landleyd921b2e2006-08-03 15:41:12 +000022 * bugs that need to be fixed
Glenn L McGrathef0eab52001-10-25 14:49:48 +000023 * - (unknown, please let me know when you find any)
24 *
Glenn L McGrathccd65c92001-07-13 18:35:24 +000025 */
26
Denis Vlasenkob6adbf12007-05-26 19:00:18 +000027#include "libbb.h"
Rob Landleyd921b2e2006-08-03 15:41:12 +000028#include "unarchive.h"
Glenn L McGrathc9005752001-02-10 02:05:24 +000029
Rob Landleyd921b2e2006-08-03 15:41:12 +000030/* 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%
Glenn L McGrathef0eab52001-10-25 14:49:48 +000033 * larger than the maximum number of elements stored in it.
Rob Landleyd921b2e2006-08-03 15:41:12 +000034 * 3) all _hash_prime's must be a prime number or chaos is assured, if your looking
Glenn L McGrathef0eab52001-10-25 14:49:48 +000035 * for a prime, try http://www.utm.edu/research/primes/lists/small/10000.txt
Rob Landleyd921b2e2006-08-03 15:41:12 +000036 * 4) if you go bigger than 15 bits you may get into trouble (untested) as its
Denis Vlasenkoa6df5902006-12-22 18:32:40 +000037 * sometimes cast to an unsigned, if you go to 16 bit you will overlap
Glenn L McGrathef0eab52001-10-25 14:49:48 +000038 * int's and chaos is assured, 16381 is the max prime for 14 bit field
39 */
40
Eric Andersenc7bda1c2004-03-15 08:29:22 +000041/* NAME_HASH_PRIME, Stores package names and versions,
Glenn L McGrathef0eab52001-10-25 14:49:48 +000042 * 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
Glenn L McGrathef0eab52001-10-25 14:49:48 +000045
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
55typedef struct edge_s {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +000056 unsigned operator:4; /* was:3 */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +000057 unsigned type:4;
Denis Vlasenko334fa9b2007-04-13 23:22:58 +000058 unsigned name:16; /* was:14 */
59 unsigned version:16; /* was:14 */
Glenn L McGrathef0eab52001-10-25 14:49:48 +000060} edge_t;
61
62typedef struct common_node_s {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +000063 unsigned name:16; /* was:14 */
64 unsigned version:16; /* was:14 */
65 unsigned num_of_edges:16; /* was:14 */
Glenn L McGrathef0eab52001-10-25 14:49:48 +000066 edge_t **edge;
67} common_node_t;
Glenn L McGrathef0eab52001-10-25 14:49:48 +000068
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
Eric Andersenaff114c2004-04-14 17:51:38 +000071 * likely to be installed at any one time, so there is a bit of leeway here */
Glenn L McGrathef0eab52001-10-25 14:49:48 +000072#define STATUS_HASH_PRIME 8191
73typedef struct status_node_s {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +000074 unsigned package:16; /* was:14 */ /* has to fit PACKAGE_HASH_PRIME */
75 unsigned status:16; /* was:14 */ /* has to fit STATUS_HASH_PRIME */
Glenn L McGrathef0eab52001-10-25 14:49:48 +000076} status_node_t;
Denis Vlasenko57308af2006-09-28 22:34:46 +000077
Denis Vlasenkoc87339d2008-06-21 23:15:43 +000078
79/* Globals */
80struct globals {
81 char *name_hashtable[NAME_HASH_PRIME + 1];
82 common_node_t *package_hashtable[PACKAGE_HASH_PRIME + 1];
83 status_node_t *status_hashtable[STATUS_HASH_PRIME + 1];
84};
85#define G (*ptr_to_globals)
86#define name_hashtable (G.name_hashtable )
87#define package_hashtable (G.package_hashtable)
88#define status_hashtable (G.status_hashtable )
89#define INIT_G() do { \
90 SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
91} while (0)
92
Glenn L McGrathef0eab52001-10-25 14:49:48 +000093
Eric Andersenaff114c2004-04-14 17:51:38 +000094/* Even numbers are for 'extras', like ored dependencies or null */
Glenn L McGrathef0eab52001-10-25 14:49:48 +000095enum edge_type_e {
96 EDGE_NULL = 0,
97 EDGE_PRE_DEPENDS = 1,
98 EDGE_OR_PRE_DEPENDS = 2,
99 EDGE_DEPENDS = 3,
100 EDGE_OR_DEPENDS = 4,
101 EDGE_REPLACES = 5,
102 EDGE_PROVIDES = 7,
103 EDGE_CONFLICTS = 9,
104 EDGE_SUGGESTS = 11,
105 EDGE_RECOMMENDS = 13,
106 EDGE_ENHANCES = 15
Glenn L McGrathccd65c92001-07-13 18:35:24 +0000107};
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000108enum operator_e {
109 VER_NULL = 0,
110 VER_EQUAL = 1,
111 VER_LESS = 2,
112 VER_LESS_EQUAL = 3,
113 VER_MORE = 4,
114 VER_MORE_EQUAL = 5,
115 VER_ANY = 6
116};
117
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000118typedef struct deb_file_s {
119 char *control_file;
120 char *filename;
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000121 unsigned package:16; /* was:14 */
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000122} deb_file_t;
123
124
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000125static void make_hash(const char *key, unsigned *start, unsigned *decrement, const int hash_prime)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000126{
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000127 unsigned long hash_num = key[0];
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000128 int len = strlen(key);
129 int i;
130
131 /* Maybe i should have uses a "proper" hashing algorithm here instead
132 * of making one up myself, seems to be working ok though. */
Denis Vlasenko57308af2006-09-28 22:34:46 +0000133 for (i = 1; i < len; i++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000134 /* shifts the ascii based value and adds it to previous value
135 * shift amount is mod 24 because long int is 32 bit and data
Eric Andersenaff114c2004-04-14 17:51:38 +0000136 * to be shifted is 8, don't want to shift data to where it has
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000137 * no effect*/
Denis Vlasenkod235f582008-06-21 22:46:58 +0000138 hash_num += (key[i] + key[i-1]) << ((key[i] * i) % 24);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000139 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000140 *start = (unsigned) hash_num % hash_prime;
141 *decrement = (unsigned) 1 + (hash_num % (hash_prime - 1));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000142}
143
144/* this adds the key to the hash table */
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000145static int search_name_hashtable(const char *key)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000146{
Denis Vlasenkod235f582008-06-21 22:46:58 +0000147 unsigned probe_address;
148 unsigned probe_decrement;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000149
150 make_hash(key, &probe_address, &probe_decrement, NAME_HASH_PRIME);
Denis Vlasenko57308af2006-09-28 22:34:46 +0000151 while (name_hashtable[probe_address] != NULL) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000152 if (strcmp(name_hashtable[probe_address], key) == 0) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000153 return probe_address;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000154 }
155 probe_address -= probe_decrement;
156 if ((int)probe_address < 0) {
157 probe_address += NAME_HASH_PRIME;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000158 }
159 }
Rob Landleyd921b2e2006-08-03 15:41:12 +0000160 name_hashtable[probe_address] = xstrdup(key);
Denis Vlasenko54928842006-09-28 22:35:42 +0000161 return probe_address;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000162}
163
164/* this DOESNT add the key to the hashtable
165 * TODO make it consistent with search_name_hashtable
166 */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000167static unsigned search_status_hashtable(const char *key)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000168{
Denis Vlasenkod235f582008-06-21 22:46:58 +0000169 unsigned probe_address;
170 unsigned probe_decrement;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000171
172 make_hash(key, &probe_address, &probe_decrement, STATUS_HASH_PRIME);
Denis Vlasenko57308af2006-09-28 22:34:46 +0000173 while (status_hashtable[probe_address] != NULL) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000174 if (strcmp(key, name_hashtable[package_hashtable[status_hashtable[probe_address]->package]->name]) == 0) {
175 break;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000176 }
177 probe_address -= probe_decrement;
178 if ((int)probe_address < 0) {
179 probe_address += STATUS_HASH_PRIME;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000180 }
181 }
Denis Vlasenko54928842006-09-28 22:35:42 +0000182 return probe_address;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000183}
184
185/* Need to rethink version comparison, maybe the official dpkg has something i can use ? */
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000186static int version_compare_part(const char *version1, const char *version2)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000187{
188 int upstream_len1 = 0;
189 int upstream_len2 = 0;
190 char *name1_char;
191 char *name2_char;
192 int len1 = 0;
193 int len2 = 0;
194 int tmp_int;
195 int ver_num1;
196 int ver_num2;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000197
198 if (version1 == NULL) {
Rob Landleyd921b2e2006-08-03 15:41:12 +0000199 version1 = xstrdup("");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000200 }
201 if (version2 == NULL) {
Rob Landleyd921b2e2006-08-03 15:41:12 +0000202 version2 = xstrdup("");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000203 }
204 upstream_len1 = strlen(version1);
205 upstream_len2 = strlen(version2);
206
207 while ((len1 < upstream_len1) || (len2 < upstream_len2)) {
208 /* Compare non-digit section */
209 tmp_int = strcspn(&version1[len1], "0123456789");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000210 name1_char = xstrndup(&version1[len1], tmp_int);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000211 len1 += tmp_int;
212 tmp_int = strcspn(&version2[len2], "0123456789");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000213 name2_char = xstrndup(&version2[len2], tmp_int);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000214 len2 += tmp_int;
215 tmp_int = strcmp(name1_char, name2_char);
216 free(name1_char);
217 free(name2_char);
218 if (tmp_int != 0) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000219 return tmp_int;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000220 }
221
222 /* Compare digits */
223 tmp_int = strspn(&version1[len1], "0123456789");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000224 name1_char = xstrndup(&version1[len1], tmp_int);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000225 len1 += tmp_int;
226 tmp_int = strspn(&version2[len2], "0123456789");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000227 name2_char = xstrndup(&version2[len2], tmp_int);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000228 len2 += tmp_int;
229 ver_num1 = atoi(name1_char);
230 ver_num2 = atoi(name2_char);
231 free(name1_char);
232 free(name2_char);
233 if (ver_num1 < ver_num2) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000234 return -1;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000235 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000236 if (ver_num1 > ver_num2) {
237 return 1;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000238 }
239 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000240 return 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000241}
242
243/* if ver1 < ver2 return -1,
244 * if ver1 = ver2 return 0,
245 * if ver1 > ver2 return 1,
246 */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000247static int version_compare(const unsigned ver1, const unsigned ver2)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000248{
249 char *ch_ver1 = name_hashtable[ver1];
250 char *ch_ver2 = name_hashtable[ver2];
251
252 char epoch1, epoch2;
253 char *deb_ver1, *deb_ver2;
254 char *ver1_ptr, *ver2_ptr;
255 char *upstream_ver1;
256 char *upstream_ver2;
257 int result;
258
259 /* Compare epoch */
260 if (ch_ver1[1] == ':') {
261 epoch1 = ch_ver1[0];
262 ver1_ptr = strchr(ch_ver1, ':') + 1;
263 } else {
264 epoch1 = '0';
265 ver1_ptr = ch_ver1;
266 }
267 if (ch_ver2[1] == ':') {
268 epoch2 = ch_ver2[0];
269 ver2_ptr = strchr(ch_ver2, ':') + 1;
270 } else {
271 epoch2 = '0';
272 ver2_ptr = ch_ver2;
273 }
274 if (epoch1 < epoch2) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000275 return -1;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000276 }
277 else if (epoch1 > epoch2) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000278 return 1;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000279 }
280
281 /* Compare upstream version */
Rob Landleyd921b2e2006-08-03 15:41:12 +0000282 upstream_ver1 = xstrdup(ver1_ptr);
283 upstream_ver2 = xstrdup(ver2_ptr);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000284
285 /* Chop off debian version, and store for later use */
286 deb_ver1 = strrchr(upstream_ver1, '-');
287 deb_ver2 = strrchr(upstream_ver2, '-');
288 if (deb_ver1) {
289 deb_ver1[0] = '\0';
290 deb_ver1++;
291 }
292 if (deb_ver2) {
293 deb_ver2[0] = '\0';
294 deb_ver2++;
295 }
296 result = version_compare_part(upstream_ver1, upstream_ver2);
Denis Vlasenkoaecabff2006-09-30 21:05:25 +0000297 if (!result)
298 /* Compare debian versions */
299 result = version_compare_part(deb_ver1, deb_ver2);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000300
301 free(upstream_ver1);
302 free(upstream_ver2);
Denis Vlasenkoaecabff2006-09-30 21:05:25 +0000303 return result;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000304}
305
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000306static int test_version(const unsigned version1, const unsigned version2, const unsigned operator)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000307{
308 const int version_result = version_compare(version1, version2);
Denis Vlasenkoc16bd212006-09-27 19:51:06 +0000309 switch (operator) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000310 case VER_ANY:
311 return TRUE;
312 case VER_EQUAL:
313 return (version_result == 0);
314 case VER_LESS:
315 return (version_result < 0);
316 case VER_LESS_EQUAL:
317 return (version_result <= 0);
318 case VER_MORE:
319 return (version_result > 0);
320 case VER_MORE_EQUAL:
321 return (version_result >= 0);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000322 }
Denis Vlasenko54928842006-09-28 22:35:42 +0000323 return FALSE;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000324}
325
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000326static int search_package_hashtable(const unsigned name, const unsigned version, const unsigned operator)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000327{
Denis Vlasenkod235f582008-06-21 22:46:58 +0000328 unsigned probe_address;
329 unsigned probe_decrement;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000330
331 make_hash(name_hashtable[name], &probe_address, &probe_decrement, PACKAGE_HASH_PRIME);
Denis Vlasenko57308af2006-09-28 22:34:46 +0000332 while (package_hashtable[probe_address] != NULL) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000333 if (package_hashtable[probe_address]->name == name) {
334 if (operator == VER_ANY) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000335 return probe_address;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000336 }
337 if (test_version(package_hashtable[probe_address]->version, version, operator)) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000338 return probe_address;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000339 }
340 }
341 probe_address -= probe_decrement;
342 if ((int)probe_address < 0) {
343 probe_address += PACKAGE_HASH_PRIME;
344 }
345 }
Denis Vlasenko54928842006-09-28 22:35:42 +0000346 return probe_address;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000347}
348
349/*
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000350 * This function searches through the entire package_hashtable looking
351 * for a package which provides "needle". It returns the index into
Eric Andersenaff114c2004-04-14 17:51:38 +0000352 * the package_hashtable for the providing package.
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000353 *
354 * needle is the index into name_hashtable of the package we are
355 * looking for.
356 *
357 * start_at is the index in the package_hashtable to start looking
358 * at. If start_at is -1 then start at the beginning. This is to allow
359 * for repeated searches since more than one package might provide
360 * needle.
361 *
362 * FIXME: I don't think this is very efficient, but I thought I'd keep
363 * it simple for now until it proves to be a problem.
364 */
Denis Vlasenkoac678ec2007-04-16 22:32:04 +0000365static int search_for_provides(int needle, int start_at)
366{
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000367 int i, j;
368 common_node_t *p;
369 for (i = start_at + 1; i < PACKAGE_HASH_PRIME; i++) {
370 p = package_hashtable[i];
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000371 if (p == NULL)
372 continue;
Denis Vlasenko57308af2006-09-28 22:34:46 +0000373 for (j = 0; j < p->num_of_edges; j++)
374 if (p->edge[j]->type == EDGE_PROVIDES && p->edge[j]->name == needle)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000375 return i;
376 }
377 return -1;
378}
379
380/*
381 * Add an edge to a node
382 */
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000383static void add_edge_to_node(common_node_t *node, edge_t *edge)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000384{
385 node->num_of_edges++;
386 node->edge = xrealloc(node->edge, sizeof(edge_t) * (node->num_of_edges + 1));
387 node->edge[node->num_of_edges - 1] = edge;
388}
389
390/*
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000391 * Create one new node and one new edge for every dependency.
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000392 *
393 * Dependencies which contain multiple alternatives are represented as
394 * an EDGE_OR_PRE_DEPENDS or EDGE_OR_DEPENDS node, followed by a
395 * number of EDGE_PRE_DEPENDS or EDGE_DEPENDS nodes. The name field of
396 * the OR edge contains the full dependency string while the version
397 * field contains the number of EDGE nodes which follow as part of
398 * this alternative.
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000399 */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000400static void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned edge_type)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000401{
Rob Landleyd921b2e2006-08-03 15:41:12 +0000402 char *line = xstrdup(whole_line);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000403 char *line2;
404 char *line_ptr1 = NULL;
405 char *line_ptr2 = NULL;
406 char *field;
407 char *field2;
408 char *version;
409 edge_t *edge;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000410 edge_t *or_edge;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000411 int offset_ch;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000412
413 field = strtok_r(line, ",", &line_ptr1);
414 do {
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000415 /* skip leading spaces */
416 field += strspn(field, " ");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000417 line2 = xstrdup(field);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000418 field2 = strtok_r(line2, "|", &line_ptr2);
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000419 or_edge = NULL;
420 if ((edge_type == EDGE_DEPENDS || edge_type == EDGE_PRE_DEPENDS)
421 && (strcmp(field, field2) != 0)
422 ) {
Denis Vlasenkod235f582008-06-21 22:46:58 +0000423 or_edge = xzalloc(sizeof(edge_t));
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000424 or_edge->type = edge_type + 1;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000425 or_edge->name = search_name_hashtable(field);
Denis Vlasenkod235f582008-06-21 22:46:58 +0000426 //or_edge->version = 0; // tracks the number of alternatives
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000427 add_edge_to_node(parent_node, or_edge);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000428 }
429
430 do {
Denis Vlasenkob95636c2006-12-19 23:36:04 +0000431 edge = xmalloc(sizeof(edge_t));
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000432 edge->type = edge_type;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000433
434 /* Skip any extra leading spaces */
435 field2 += strspn(field2, " ");
436
437 /* Get dependency version info */
438 version = strchr(field2, '(');
439 if (version == NULL) {
440 edge->operator = VER_ANY;
441 /* Get the versions hash number, adding it if the number isnt already in there */
442 edge->version = search_name_hashtable("ANY");
443 } else {
444 /* Skip leading ' ' or '(' */
Bernhard Reutner-Fischer6c501a72007-06-05 17:28:56 +0000445 version += strspn(version, " (");
Eric Andersenaff114c2004-04-14 17:51:38 +0000446 /* Calculate length of any operator characters */
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000447 offset_ch = strspn(version, "<=>");
448 /* Determine operator */
449 if (offset_ch > 0) {
450 if (strncmp(version, "=", offset_ch) == 0) {
451 edge->operator = VER_EQUAL;
Denis Vlasenkod235f582008-06-21 22:46:58 +0000452 } else if (strncmp(version, "<<", offset_ch) == 0) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000453 edge->operator = VER_LESS;
Denis Vlasenkod235f582008-06-21 22:46:58 +0000454 } else if (strncmp(version, "<=", offset_ch) == 0) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000455 edge->operator = VER_LESS_EQUAL;
Denis Vlasenkod235f582008-06-21 22:46:58 +0000456 } else if (strncmp(version, ">>", offset_ch) == 0) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000457 edge->operator = VER_MORE;
Denis Vlasenkod235f582008-06-21 22:46:58 +0000458 } else if (strncmp(version, ">=", offset_ch) == 0) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000459 edge->operator = VER_MORE_EQUAL;
460 } else {
Denis Vlasenko57308af2006-09-28 22:34:46 +0000461 bb_error_msg_and_die("illegal operator");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000462 }
463 }
464 /* skip to start of version numbers */
465 version += offset_ch;
466 version += strspn(version, " ");
467
468 /* Truncate version at trailing ' ' or ')' */
469 version[strcspn(version, " )")] = '\0';
470 /* Get the versions hash number, adding it if the number isnt already in there */
471 edge->version = search_name_hashtable(version);
472 }
473
474 /* Get the dependency name */
475 field2[strcspn(field2, " (")] = '\0';
476 edge->name = search_name_hashtable(field2);
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000477
Denis Vlasenko57308af2006-09-28 22:34:46 +0000478 if (or_edge)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000479 or_edge->version++;
480
481 add_edge_to_node(parent_node, edge);
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000482 field2 = strtok_r(NULL, "|", &line_ptr2);
483 } while (field2 != NULL);
484
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000485 free(line2);
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000486 field = strtok_r(NULL, ",", &line_ptr1);
487 } while (field != NULL);
488
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000489 free(line);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000490}
491
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000492static void free_package(common_node_t *node)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000493{
Denis Vlasenko54928842006-09-28 22:35:42 +0000494 unsigned i;
Glenn L McGratha94a06a2002-05-29 13:45:34 +0000495 if (node) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000496 for (i = 0; i < node->num_of_edges; i++) {
Aaron Lehmanna170e1c2002-11-28 11:27:31 +0000497 free(node->edge[i]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000498 }
Rob Landleye7c43b62006-03-01 16:39:45 +0000499 free(node->edge);
Glenn L McGratha94a06a2002-05-29 13:45:34 +0000500 free(node);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000501 }
502}
503
Rob Landleyd921b2e2006-08-03 15:41:12 +0000504/*
505 * Gets the next package field from package_buffer, seperated into the field name
506 * and field value, it returns the int offset to the first character of the next field
507 */
508static int read_package_field(const char *package_buffer, char **field_name, char **field_value)
509{
510 int offset_name_start = 0;
511 int offset_name_end = 0;
512 int offset_value_start = 0;
513 int offset_value_end = 0;
514 int offset = 0;
515 int next_offset;
516 int name_length;
517 int value_length;
518 int exit_flag = FALSE;
519
520 if (package_buffer == NULL) {
521 *field_name = NULL;
522 *field_value = NULL;
Denis Vlasenko54928842006-09-28 22:35:42 +0000523 return -1;
Rob Landleyd921b2e2006-08-03 15:41:12 +0000524 }
525 while (1) {
526 next_offset = offset + 1;
527 switch (package_buffer[offset]) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000528 case '\0':
Rob Landleyd921b2e2006-08-03 15:41:12 +0000529 exit_flag = TRUE;
530 break;
Denis Vlasenko54928842006-09-28 22:35:42 +0000531 case ':':
Rob Landleyd921b2e2006-08-03 15:41:12 +0000532 if (offset_name_end == 0) {
533 offset_name_end = offset;
534 offset_value_start = next_offset;
535 }
536 /* TODO: Name might still have trailing spaces if ':' isnt
537 * immediately after name */
538 break;
Denis Vlasenko54928842006-09-28 22:35:42 +0000539 case '\n':
Rob Landleyd921b2e2006-08-03 15:41:12 +0000540 /* TODO: The char next_offset may be out of bounds */
541 if (package_buffer[next_offset] != ' ') {
542 exit_flag = TRUE;
543 break;
544 }
Denis Vlasenko54928842006-09-28 22:35:42 +0000545 case '\t':
546 case ' ':
Rob Landleyd921b2e2006-08-03 15:41:12 +0000547 /* increment the value start point if its a just filler */
548 if (offset_name_start == offset) {
549 offset_name_start++;
550 }
551 if (offset_value_start == offset) {
552 offset_value_start++;
553 }
554 break;
555 }
556 if (exit_flag) {
557 /* Check that the names are valid */
558 offset_value_end = offset;
559 name_length = offset_name_end - offset_name_start;
560 value_length = offset_value_end - offset_value_start;
561 if (name_length == 0) {
562 break;
563 }
564 if ((name_length > 0) && (value_length > 0)) {
565 break;
566 }
567
568 /* If not valid, start fresh with next field */
569 exit_flag = FALSE;
570 offset_name_start = offset + 1;
571 offset_name_end = 0;
572 offset_value_start = offset + 1;
573 offset_value_end = offset + 1;
574 offset++;
575 }
576 offset++;
577 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000578 *field_name = NULL;
579 if (name_length) {
Rob Landleyd921b2e2006-08-03 15:41:12 +0000580 *field_name = xstrndup(&package_buffer[offset_name_start], name_length);
581 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000582 *field_value = NULL;
Rob Landleyd921b2e2006-08-03 15:41:12 +0000583 if (value_length > 0) {
584 *field_value = xstrndup(&package_buffer[offset_value_start], value_length);
Rob Landleyd921b2e2006-08-03 15:41:12 +0000585 }
Denis Vlasenko54928842006-09-28 22:35:42 +0000586 return next_offset;
Rob Landleyd921b2e2006-08-03 15:41:12 +0000587}
588
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000589static unsigned fill_package_struct(char *control_buffer)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000590{
Denis Vlasenko6ca409e2007-08-12 20:58:27 +0000591 static const char field_names[] ALIGN1 =
592 "Package\0""Version\0"
Denis Vlasenko990d0f62007-07-24 15:54:42 +0000593 "Pre-Depends\0""Depends\0""Replaces\0""Provides\0"
594 "Conflicts\0""Suggests\0""Recommends\0""Enhances\0";
Rob Landley0a7c8ef2006-02-22 17:01:00 +0000595
Denis Vlasenko4cccc032006-12-22 18:37:07 +0000596 common_node_t *new_node = xzalloc(sizeof(common_node_t));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000597 char *field_name;
598 char *field_value;
599 int field_start = 0;
600 int num = -1;
601 int buffer_length = strlen(control_buffer);
602
603 new_node->version = search_name_hashtable("unknown");
604 while (field_start < buffer_length) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000605 unsigned field_num;
Glenn L McGrath62d28822002-11-06 23:35:28 +0000606
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000607 field_start += read_package_field(&control_buffer[field_start],
608 &field_name, &field_value);
609
610 if (field_name == NULL) {
Denis Vlasenkoabee3d02007-12-26 20:44:45 +0000611 goto fill_package_struct_cleanup;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000612 }
613
Denis Vlasenko990d0f62007-07-24 15:54:42 +0000614 field_num = index_in_strings(field_names, field_name);
Denis Vlasenkoc16bd212006-09-27 19:51:06 +0000615 switch (field_num) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000616 case 0: /* Package */
617 new_node->name = search_name_hashtable(field_value);
618 break;
619 case 1: /* Version */
620 new_node->version = search_name_hashtable(field_value);
621 break;
622 case 2: /* Pre-Depends */
623 add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
624 break;
625 case 3: /* Depends */
626 add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
627 break;
628 case 4: /* Replaces */
629 add_split_dependencies(new_node, field_value, EDGE_REPLACES);
630 break;
631 case 5: /* Provides */
632 add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
633 break;
634 case 6: /* Conflicts */
635 add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
636 break;
637 case 7: /* Suggests */
638 add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
639 break;
640 case 8: /* Recommends */
641 add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
642 break;
643 case 9: /* Enhances */
644 add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
645 break;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000646 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000647 fill_package_struct_cleanup:
Aaron Lehmanna170e1c2002-11-28 11:27:31 +0000648 free(field_name);
649 free(field_value);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000650 }
651
652 if (new_node->version == search_name_hashtable("unknown")) {
653 free_package(new_node);
Denis Vlasenko54928842006-09-28 22:35:42 +0000654 return -1;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000655 }
656 num = search_package_hashtable(new_node->name, new_node->version, VER_EQUAL);
Denis Vlasenko88a2aa92007-03-19 21:48:56 +0000657 free_package(package_hashtable[num]);
Bernhard Reutner-Fischerde8a6a02007-03-19 13:44:18 +0000658 package_hashtable[num] = new_node;
Denis Vlasenko54928842006-09-28 22:35:42 +0000659 return num;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000660}
661
662/* if num = 1, it returns the want status, 2 returns flag, 3 returns status */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000663static unsigned get_status(const unsigned status_node, const int num)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000664{
665 char *status_string = name_hashtable[status_hashtable[status_node]->status];
666 char *state_sub_string;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000667 unsigned state_sub_num;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000668 int len;
669 int i;
670
671 /* set tmp_string to point to the start of the word number */
672 for (i = 1; i < num; i++) {
673 /* skip past a word */
674 status_string += strcspn(status_string, " ");
Eric Andersenaff114c2004-04-14 17:51:38 +0000675 /* skip past the separating spaces */
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000676 status_string += strspn(status_string, " ");
677 }
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +0000678 len = strcspn(status_string, " \n");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000679 state_sub_string = xstrndup(status_string, len);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000680 state_sub_num = search_name_hashtable(state_sub_string);
681 free(state_sub_string);
Denis Vlasenko54928842006-09-28 22:35:42 +0000682 return state_sub_num;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000683}
684
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000685static void set_status(const unsigned status_node_num, const char *new_value, const int position)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000686{
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000687 const unsigned new_value_len = strlen(new_value);
688 const unsigned new_value_num = search_name_hashtable(new_value);
689 unsigned want = get_status(status_node_num, 1);
690 unsigned flag = get_status(status_node_num, 2);
691 unsigned status = get_status(status_node_num, 3);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000692 int want_len = strlen(name_hashtable[want]);
693 int flag_len = strlen(name_hashtable[flag]);
694 int status_len = strlen(name_hashtable[status]);
695 char *new_status;
696
697 switch (position) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000698 case 1:
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000699 want = new_value_num;
700 want_len = new_value_len;
701 break;
Denis Vlasenko54928842006-09-28 22:35:42 +0000702 case 2:
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000703 flag = new_value_num;
704 flag_len = new_value_len;
705 break;
Denis Vlasenko54928842006-09-28 22:35:42 +0000706 case 3:
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000707 status = new_value_num;
708 status_len = new_value_len;
709 break;
710 default:
Manuel Novoa III cad53642003-03-19 09:13:01 +0000711 bb_error_msg_and_die("DEBUG ONLY: this shouldnt happen");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000712 }
713
Rob Landleyd921b2e2006-08-03 15:41:12 +0000714 new_status = xasprintf("%s %s %s", name_hashtable[want], name_hashtable[flag], name_hashtable[status]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000715 status_hashtable[status_node_num]->status = search_name_hashtable(new_status);
716 free(new_status);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000717}
718
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000719static const char *describe_status(int status_num)
720{
Denis Vlasenkob71c6682007-07-21 15:08:09 +0000721 int status_want, status_state;
Denis Vlasenko57308af2006-09-28 22:34:46 +0000722 if (status_hashtable[status_num] == NULL || status_hashtable[status_num]->status == 0)
Denis Vlasenko15611bb2007-06-12 08:52:02 +0000723 return "is not installed or flagged to be installed";
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000724
725 status_want = get_status(status_num, 1);
726 status_state = get_status(status_num, 3);
727
Denis Vlasenko57308af2006-09-28 22:34:46 +0000728 if (status_state == search_name_hashtable("installed")) {
729 if (status_want == search_name_hashtable("install"))
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000730 return "is installed";
Denis Vlasenko57308af2006-09-28 22:34:46 +0000731 if (status_want == search_name_hashtable("deinstall"))
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000732 return "is marked to be removed";
Denis Vlasenko57308af2006-09-28 22:34:46 +0000733 if (status_want == search_name_hashtable("purge"))
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000734 return "is marked to be purged";
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000735 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000736 if (status_want == search_name_hashtable("unknown"))
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000737 return "is in an indeterminate state";
Denis Vlasenko57308af2006-09-28 22:34:46 +0000738 if (status_want == search_name_hashtable("install"))
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000739 return "is marked to be installed";
740
741 return "is not installed or flagged to be installed";
742}
743
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000744static void index_status_file(const char *filename)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000745{
746 FILE *status_file;
747 char *control_buffer;
748 char *status_line;
749 status_node_t *status_node = NULL;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000750 unsigned status_num;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000751
Rob Landleyd921b2e2006-08-03 15:41:12 +0000752 status_file = xfopen(filename, "r");
Denis Vlasenkoabee3d02007-12-26 20:44:45 +0000753 while ((control_buffer = xmalloc_fgetline_str(status_file, "\n\n")) != NULL) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000754 const unsigned package_num = fill_package_struct(control_buffer);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000755 if (package_num != -1) {
756 status_node = xmalloc(sizeof(status_node_t));
757 /* fill_package_struct doesnt handle the status field */
758 status_line = strstr(control_buffer, "Status:");
759 if (status_line != NULL) {
760 status_line += 7;
761 status_line += strspn(status_line, " \n\t");
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +0000762 status_line = xstrndup(status_line, strcspn(status_line, "\n"));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000763 status_node->status = search_name_hashtable(status_line);
764 free(status_line);
765 }
766 status_node->package = package_num;
767 status_num = search_status_hashtable(name_hashtable[package_hashtable[status_node->package]->name]);
768 status_hashtable[status_num] = status_node;
769 }
770 free(control_buffer);
771 }
772 fclose(status_file);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000773}
774
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000775static void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000776{
777 char *name;
778 char *value;
779 int start = 0;
780 while (1) {
781 start += read_package_field(&control_buffer[start], &name, &value);
782 if (name == NULL) {
783 break;
784 }
785 if (strcmp(name, "Status") != 0) {
786 fprintf(new_status_file, "%s: %s\n", name, value);
787 }
788 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000789}
790
791/* This could do with a cleanup */
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000792static void write_status_file(deb_file_t **deb_file)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000793{
Rob Landleyd921b2e2006-08-03 15:41:12 +0000794 FILE *old_status_file = xfopen("/var/lib/dpkg/status", "r");
795 FILE *new_status_file = xfopen("/var/lib/dpkg/status.udeb", "w");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000796 char *package_name;
797 char *status_from_file;
798 char *control_buffer = NULL;
799 char *tmp_string;
800 int status_num;
801 int field_start = 0;
802 int write_flag;
803 int i = 0;
804
805 /* Update previously known packages */
Denis Vlasenkoabee3d02007-12-26 20:44:45 +0000806 while ((control_buffer = xmalloc_fgetline_str(old_status_file, "\n\n")) != NULL) {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000807 tmp_string = strstr(control_buffer, "Package:");
808 if (tmp_string == NULL) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000809 continue;
810 }
811
812 tmp_string += 8;
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000813 tmp_string += strspn(tmp_string, " \n\t");
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +0000814 package_name = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000815 write_flag = FALSE;
816 tmp_string = strstr(control_buffer, "Status:");
817 if (tmp_string != NULL) {
818 /* Seperate the status value from the control buffer */
819 tmp_string += 7;
820 tmp_string += strspn(tmp_string, " \n\t");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000821 status_from_file = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000822 } else {
823 status_from_file = NULL;
824 }
825
826 /* Find this package in the status hashtable */
827 status_num = search_status_hashtable(package_name);
828 if (status_hashtable[status_num] != NULL) {
829 const char *status_from_hashtable = name_hashtable[status_hashtable[status_num]->status];
830 if (strcmp(status_from_file, status_from_hashtable) != 0) {
831 /* New status isnt exactly the same as old status */
832 const int state_status = get_status(status_num, 3);
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000833 if ((strcmp("installed", name_hashtable[state_status]) == 0)
834 || (strcmp("unpacked", name_hashtable[state_status]) == 0)
835 ) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000836 /* We need to add the control file from the package */
837 i = 0;
Denis Vlasenko57308af2006-09-28 22:34:46 +0000838 while (deb_file[i] != NULL) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000839 if (strcmp(package_name, name_hashtable[package_hashtable[deb_file[i]->package]->name]) == 0) {
840 /* Write a status file entry with a modified status */
841 /* remove trailing \n's */
842 write_buffer_no_status(new_status_file, deb_file[i]->control_file);
843 set_status(status_num, "ok", 2);
Denis Vlasenkoa6dbb082006-10-12 19:29:44 +0000844 fprintf(new_status_file, "Status: %s\n\n",
845 name_hashtable[status_hashtable[status_num]->status]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000846 write_flag = TRUE;
847 break;
848 }
849 i++;
850 }
851 /* This is temperary, debugging only */
852 if (deb_file[i] == NULL) {
Denis Vlasenkoa6dbb082006-10-12 19:29:44 +0000853 bb_error_msg_and_die("ALERT: cannot find a control file, "
854 "your status file may be broken, status may be "
855 "incorrect for %s", package_name);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000856 }
857 }
858 else if (strcmp("not-installed", name_hashtable[state_status]) == 0) {
859 /* Only write the Package, Status, Priority and Section lines */
860 fprintf(new_status_file, "Package: %s\n", package_name);
861 fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
862
863 while (1) {
864 char *field_name;
865 char *field_value;
866 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
867 if (field_name == NULL) {
868 break;
869 }
870 if ((strcmp(field_name, "Priority") == 0) ||
871 (strcmp(field_name, "Section") == 0)) {
872 fprintf(new_status_file, "%s: %s\n", field_name, field_value);
873 }
874 }
875 write_flag = TRUE;
876 fputs("\n", new_status_file);
877 }
878 else if (strcmp("config-files", name_hashtable[state_status]) == 0) {
879 /* only change the status line */
880 while (1) {
881 char *field_name;
882 char *field_value;
883 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
884 if (field_name == NULL) {
885 break;
886 }
887 /* Setup start point for next field */
888 if (strcmp(field_name, "Status") == 0) {
889 fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
890 } else {
891 fprintf(new_status_file, "%s: %s\n", field_name, field_value);
892 }
893 }
894 write_flag = TRUE;
895 fputs("\n", new_status_file);
896 }
897 }
898 }
899 /* If the package from the status file wasnt handle above, do it now*/
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000900 if (!write_flag) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000901 fprintf(new_status_file, "%s\n\n", control_buffer);
902 }
903
Aaron Lehmanna170e1c2002-11-28 11:27:31 +0000904 free(status_from_file);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000905 free(package_name);
906 free(control_buffer);
907 }
908
909 /* Write any new packages */
Denis Vlasenko57308af2006-09-28 22:34:46 +0000910 for (i = 0; deb_file[i] != NULL; i++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000911 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[i]->package]->name]);
912 if (strcmp("reinstreq", name_hashtable[get_status(status_num, 2)]) == 0) {
913 write_buffer_no_status(new_status_file, deb_file[i]->control_file);
914 set_status(status_num, "ok", 2);
915 fprintf(new_status_file, "Status: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
916 }
917 }
918 fclose(old_status_file);
919 fclose(new_status_file);
920
Eric Andersenaff114c2004-04-14 17:51:38 +0000921 /* Create a separate backfile to dpkg */
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000922 if (rename("/var/lib/dpkg/status", "/var/lib/dpkg/status.udeb.bak") == -1) {
Denis Vlasenkob3b07532008-02-17 14:29:25 +0000923 if (errno != ENOENT)
924 bb_error_msg_and_die("cannot create backup status file");
Eric Andersenaff114c2004-04-14 17:51:38 +0000925 /* Its ok if renaming the status file fails because status
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000926 * file doesnt exist, maybe we are starting from scratch */
Denis Vlasenko57308af2006-09-28 22:34:46 +0000927 bb_error_msg("no status file found, creating new one");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000928 }
929
Denis Vlasenkob3b07532008-02-17 14:29:25 +0000930 xrename("/var/lib/dpkg/status.udeb", "/var/lib/dpkg/status");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000931}
932
Eric Andersenaff114c2004-04-14 17:51:38 +0000933/* This function returns TRUE if the given package can satisfy a
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000934 * dependency of type depend_type.
935 *
Eric Andersenaff114c2004-04-14 17:51:38 +0000936 * A pre-depends is satisfied only if a package is already installed,
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000937 * which a regular depends can be satisfied by a package which we want
938 * to install.
939 */
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000940static int package_satisfies_dependency(int package, int depend_type)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000941{
942 int status_num = search_status_hashtable(name_hashtable[package_hashtable[package]->name]);
943
944 /* status could be unknown if package is a pure virtual
945 * provides which cannot satisfy any dependency by itself.
946 */
Denis Vlasenko57308af2006-09-28 22:34:46 +0000947 if (status_hashtable[status_num] == NULL)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000948 return 0;
949
950 switch (depend_type) {
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000951 case EDGE_PRE_DEPENDS: return get_status(status_num, 3) == search_name_hashtable("installed");
952 case EDGE_DEPENDS: return get_status(status_num, 1) == search_name_hashtable("install");
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000953 }
954 return 0;
955}
956
Denis Vlasenko68404f12008-03-17 09:00:54 +0000957static int check_deps(deb_file_t **deb_file, int deb_start /*, int dep_max_count - ?? */)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000958{
959 int *conflicts = NULL;
960 int conflicts_num = 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000961 int i = deb_start;
Glenn L McGratha94a06a2002-05-29 13:45:34 +0000962 int j;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000963
964 /* Check for conflicts
965 * TODO: TEST if conflicts with other packages to be installed
966 *
967 * Add install packages and the packages they provide
968 * to the list of files to check conflicts for
969 */
970
971 /* Create array of package numbers to check against
972 * installed package for conflicts*/
973 while (deb_file[i] != NULL) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000974 const unsigned package_num = deb_file[i]->package;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000975 conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
976 conflicts[conflicts_num] = package_num;
977 conflicts_num++;
978 /* add provides to conflicts list */
979 for (j = 0; j < package_hashtable[package_num]->num_of_edges; j++) {
980 if (package_hashtable[package_num]->edge[j]->type == EDGE_PROVIDES) {
981 const int conflicts_package_num = search_package_hashtable(
982 package_hashtable[package_num]->edge[j]->name,
983 package_hashtable[package_num]->edge[j]->version,
984 package_hashtable[package_num]->edge[j]->operator);
985 if (package_hashtable[conflicts_package_num] == NULL) {
986 /* create a new package */
Denis Vlasenko4cccc032006-12-22 18:37:07 +0000987 common_node_t *new_node = xzalloc(sizeof(common_node_t));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000988 new_node->name = package_hashtable[package_num]->edge[j]->name;
989 new_node->version = package_hashtable[package_num]->edge[j]->version;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000990 package_hashtable[conflicts_package_num] = new_node;
991 }
992 conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
993 conflicts[conflicts_num] = conflicts_package_num;
994 conflicts_num++;
995 }
996 }
997 i++;
998 }
999
1000 /* Check conflicts */
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001001 i = 0;
1002 while (deb_file[i] != NULL) {
1003 const common_node_t *package_node = package_hashtable[deb_file[i]->package];
1004 int status_num = 0;
1005 status_num = search_status_hashtable(name_hashtable[package_node->name]);
1006
1007 if (get_status(status_num, 3) == search_name_hashtable("installed")) {
1008 i++;
1009 continue;
1010 }
1011
1012 for (j = 0; j < package_node->num_of_edges; j++) {
1013 const edge_t *package_edge = package_node->edge[j];
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001014
1015 if (package_edge->type == EDGE_CONFLICTS) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001016 const unsigned package_num =
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001017 search_package_hashtable(package_edge->name,
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001018 package_edge->version,
1019 package_edge->operator);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001020 int result = 0;
1021 if (package_hashtable[package_num] != NULL) {
1022 status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001023
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001024 if (get_status(status_num, 1) == search_name_hashtable("install")) {
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001025 result = test_version(package_hashtable[deb_file[i]->package]->version,
1026 package_edge->version, package_edge->operator);
1027 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001028 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001029
1030 if (result) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001031 bb_error_msg_and_die("package %s conflicts with %s",
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001032 name_hashtable[package_node->name],
1033 name_hashtable[package_edge->name]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001034 }
1035 }
1036 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001037 i++;
Tim Rikerc1ef7bd2006-01-25 00:08:53 +00001038 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001039
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001040
1041 /* Check dependendcies */
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001042 for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001043 int status_num = 0;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001044 int number_of_alternatives = 0;
Eric Andersenaff114c2004-04-14 17:51:38 +00001045 const edge_t * root_of_alternatives = NULL;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001046 const common_node_t *package_node = package_hashtable[i];
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001047
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001048 /* If the package node does not exist then this
1049 * package is a virtual one. In which case there are
1050 * no dependencies to check.
1051 */
Denis Vlasenko57308af2006-09-28 22:34:46 +00001052 if (package_node == NULL) continue;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001053
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001054 status_num = search_status_hashtable(name_hashtable[package_node->name]);
1055
1056 /* If there is no status then this package is a
1057 * virtual one provided by something else. In which
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001058 * case there are no dependencies to check.
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001059 */
Denis Vlasenko57308af2006-09-28 22:34:46 +00001060 if (status_hashtable[status_num] == NULL) continue;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001061
1062 /* If we don't want this package installed then we may
1063 * as well ignore it's dependencies.
1064 */
1065 if (get_status(status_num, 1) != search_name_hashtable("install")) {
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001066 continue;
1067 }
1068
Eric Andersenaff114c2004-04-14 17:51:38 +00001069 /* This code is tested only for EDGE_DEPENDS, since I
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001070 * have no suitable pre-depends available. There is no
1071 * reason that it shouldn't work though :-)
1072 */
1073 for (j = 0; j < package_node->num_of_edges; j++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001074 const edge_t *package_edge = package_node->edge[j];
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001075 unsigned package_num;
Tim Rikerc1ef7bd2006-01-25 00:08:53 +00001076
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001077 if (package_edge->type == EDGE_OR_PRE_DEPENDS
1078 || package_edge->type == EDGE_OR_DEPENDS
1079 ) { /* start an EDGE_OR_ list */
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001080 number_of_alternatives = package_edge->version;
1081 root_of_alternatives = package_edge;
1082 continue;
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001083 }
1084 if (number_of_alternatives == 0) { /* not in the middle of an EDGE_OR_ list */
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001085 number_of_alternatives = 1;
1086 root_of_alternatives = NULL;
1087 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001088
Glenn L McGrath1dbbd2f2001-12-05 04:10:14 +00001089 package_num = search_package_hashtable(package_edge->name, package_edge->version, package_edge->operator);
Glenn L McGrath1dbbd2f2001-12-05 04:10:14 +00001090
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001091 if (package_edge->type == EDGE_PRE_DEPENDS ||
Denis Vlasenko57308af2006-09-28 22:34:46 +00001092 package_edge->type == EDGE_DEPENDS) {
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001093 int result=1;
1094 status_num = 0;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001095
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001096 /* If we are inside an alternative then check
1097 * this edge is the right type.
1098 *
1099 * EDGE_DEPENDS == OR_DEPENDS -1
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001100 * EDGE_PRE_DEPENDS == OR_PRE_DEPENDS -1
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001101 */
Denis Vlasenko57308af2006-09-28 22:34:46 +00001102 if (root_of_alternatives && package_edge->type != root_of_alternatives->type - 1)
1103 bb_error_msg_and_die("fatal error, package dependencies corrupt: %d != %d - 1",
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001104 package_edge->type, root_of_alternatives->type);
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001105
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001106 if (package_hashtable[package_num] != NULL)
1107 result = !package_satisfies_dependency(package_num, package_edge->type);
1108
1109 if (result) { /* check for other package which provide what we are looking for */
1110 int provider = -1;
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001111
Denis Vlasenko57308af2006-09-28 22:34:46 +00001112 while ((provider = search_for_provides(package_edge->name, provider)) > -1) {
1113 if (package_hashtable[provider] == NULL) {
1114 puts("Have a provider but no package information for it");
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001115 continue;
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001116 }
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001117 result = !package_satisfies_dependency(provider, package_edge->type);
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001118
Denis Vlasenko57308af2006-09-28 22:34:46 +00001119 if (result == 0)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001120 break;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001121 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001122 }
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001123
1124 /* It must be already installed, or to be installed */
1125 number_of_alternatives--;
1126 if (result && number_of_alternatives == 0) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001127 if (root_of_alternatives)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001128 bb_error_msg_and_die(
Denis Vlasenko57308af2006-09-28 22:34:46 +00001129 "package %s %sdepends on %s, "
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001130 "which cannot be satisfied",
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001131 name_hashtable[package_node->name],
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001132 package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1133 name_hashtable[root_of_alternatives->name]);
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001134 bb_error_msg_and_die(
1135 "package %s %sdepends on %s, which %s\n",
1136 name_hashtable[package_node->name],
1137 package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1138 name_hashtable[package_edge->name],
1139 describe_status(status_num));
1140 }
1141 if (result == 0 && number_of_alternatives) {
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001142 /* we've found a package which
1143 * satisfies the dependency,
1144 * so skip over the rest of
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001145 * the alternatives.
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001146 */
1147 j += number_of_alternatives;
1148 number_of_alternatives = 0;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001149 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001150 }
1151 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001152 }
1153 free(conflicts);
Denis Vlasenko54928842006-09-28 22:35:42 +00001154 return TRUE;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001155}
1156
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001157static char **create_list(const char *filename)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001158{
1159 FILE *list_stream;
Denis Vlasenko20273132008-06-21 22:10:52 +00001160 char **file_list;
1161 char *line;
1162 int count;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001163
Eric Andersenaff114c2004-04-14 17:51:38 +00001164 /* don't use [xw]fopen here, handle error ourself */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001165 list_stream = fopen(filename, "r");
1166 if (list_stream == NULL) {
Denis Vlasenko54928842006-09-28 22:35:42 +00001167 return NULL;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001168 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001169
Denis Vlasenko20273132008-06-21 22:10:52 +00001170 file_list = NULL;
1171 count = 0;
Denis Vlasenko8ee649a2008-03-26 20:04:27 +00001172 while ((line = xmalloc_fgetline(list_stream)) != NULL) {
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001173 file_list = xrealloc(file_list, sizeof(char *) * (count + 2));
Denis Vlasenko20273132008-06-21 22:10:52 +00001174 file_list[count++] = line;
1175 file_list[count] = NULL;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001176 }
1177 fclose(list_stream);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001178
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001179 return file_list;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001180}
1181
1182/* maybe i should try and hook this into remove_file.c somehow */
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001183static int remove_file_array(char **remove_names, char **exclude_names)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001184{
1185 struct stat path_stat;
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001186 int remove_flag = 1; /* not removed anything yet */
1187 int i, j;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001188
1189 if (remove_names == NULL) {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001190 return 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001191 }
1192 for (i = 0; remove_names[i] != NULL; i++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001193 if (exclude_names != NULL) {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001194 for (j = 0; exclude_names[j] != NULL; j++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001195 if (strcmp(remove_names[i], exclude_names[j]) == 0) {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001196 goto skip;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001197 }
1198 }
1199 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001200 /* TODO: why we are checking lstat? we can just try rm/rmdir */
1201 if (lstat(remove_names[i], &path_stat) < 0) {
1202 continue;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001203 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001204 if (S_ISDIR(path_stat.st_mode)) {
1205 remove_flag &= rmdir(remove_names[i]); /* 0 if no error */
1206 } else {
1207 remove_flag &= unlink(remove_names[i]); /* 0 if no error */
1208 }
1209 skip:
1210 continue;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001211 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001212 return (remove_flag == 0);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001213}
1214
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001215static void run_package_script_or_die(const char *package_name, const char *script_type)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001216{
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001217 char *script_path;
1218 int result;
1219
Rob Landleyd921b2e2006-08-03 15:41:12 +00001220 script_path = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, script_type);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001221
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001222 /* If the file doesnt exist is isnt fatal */
1223 result = access(script_path, F_OK) ? EXIT_SUCCESS : system(script_path);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001224 free(script_path);
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001225 if (result)
1226 bb_error_msg_and_die("%s failed, exit code %d", script_type, result);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001227}
1228
Denis Vlasenkod235f582008-06-21 22:46:58 +00001229/*
1230The policy manual defines what scripts get called when and with
1231what arguments. I realize that busybox does not support all of
1232these scenarios, but it does support some of them; it does not,
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001233however, run them with any parameters in run_package_script_or_die().
Denis Vlasenkod235f582008-06-21 22:46:58 +00001234Here are the scripts:
1235
1236preinst install
1237preinst install <old_version>
1238preinst upgrade <old_version>
1239preinst abort_upgrade <new_version>
1240postinst configure <most_recent_version>
1241postinst abort-upgade <new_version>
1242postinst abort-remove
1243postinst abort-remove in-favour <package> <version>
1244postinst abort-deconfigure in-favor <failed_install_package> removing <conflicting_package> <version>
1245prerm remove
1246prerm upgrade <new_version>
1247prerm failed-upgrade <old_version>
1248prerm remove in-favor <package> <new_version>
1249prerm deconfigure in-favour <package> <version> removing <package> <version>
1250postrm remove
1251postrm purge
1252postrm upgrade <new_version>
1253postrm failed-upgrade <old_version>
1254postrm abort-install
1255postrm abort-install <old_version>
1256postrm abort-upgrade <old_version>
1257postrm disappear <overwriter> <version>
1258*/
Denis Vlasenko6ca409e2007-08-12 20:58:27 +00001259static const char *const all_control_files[] = {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001260 "preinst", "postinst", "prerm", "postrm",
1261 "list", "md5sums", "shlibs", "conffiles",
Denis Vlasenkod235f582008-06-21 22:46:58 +00001262 "config", "templates"
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001263};
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001264
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001265static char **all_control_list(const char *package_name)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001266{
Denis Vlasenko54928842006-09-28 22:35:42 +00001267 unsigned i = 0;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001268 char **remove_files;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001269
1270 /* Create a list of all /var/lib/dpkg/info/<package> files */
Denis Vlasenkod235f582008-06-21 22:46:58 +00001271 remove_files = xzalloc(sizeof(all_control_files) + sizeof(char*));
1272 while (i < ARRAY_SIZE(all_control_files)) {
1273 remove_files[i] = xasprintf("/var/lib/dpkg/info/%s.%s",
1274 package_name, all_control_files[i]);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001275 i++;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001276 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001277
Denis Vlasenko54928842006-09-28 22:35:42 +00001278 return remove_files;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001279}
1280
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001281static void free_array(char **array)
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001282{
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001283 if (array) {
Denis Vlasenko54928842006-09-28 22:35:42 +00001284 unsigned i = 0;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001285 while (array[i]) {
1286 free(array[i]);
1287 i++;
1288 }
1289 free(array);
1290 }
1291}
Glenn L McGrathe7386612001-09-21 04:30:51 +00001292
1293/* This function lists information on the installed packages. It loops through
1294 * the status_hashtable to retrieve the info. This results in smaller code than
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001295 * scanning the status file. The resulting list, however, is unsorted.
Glenn L McGrathe7386612001-09-21 04:30:51 +00001296 */
Mike Frysinger4e5936e2005-04-16 04:30:38 +00001297static void list_packages(void)
Glenn L McGrathe7386612001-09-21 04:30:51 +00001298{
Tim Rikerc1ef7bd2006-01-25 00:08:53 +00001299 int i;
Glenn L McGrathe7386612001-09-21 04:30:51 +00001300
Denis Vlasenko57308af2006-09-28 22:34:46 +00001301 puts(" Name Version");
1302 puts("+++-==============-==============");
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001303
Glenn L McGrathe7386612001-09-21 04:30:51 +00001304 /* go through status hash, dereference package hash and finally strings */
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001305 for (i = 0; i < STATUS_HASH_PRIME+1; i++) {
Denis Vlasenko9213a9e2006-09-17 16:28:10 +00001306 if (status_hashtable[i]) {
1307 const char *stat_str; /* status string */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001308 const char *name_str; /* package name */
1309 const char *vers_str; /* version */
1310 char s1, s2; /* status abbreviations */
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001311 int spccnt; /* space count */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001312 int j;
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001313
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001314 stat_str = name_hashtable[status_hashtable[i]->status];
1315 name_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->name];
1316 vers_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->version];
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001317
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001318 /* get abbreviation for status field 1 */
1319 s1 = stat_str[0] == 'i' ? 'i' : 'r';
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001320
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001321 /* get abbreviation for status field 2 */
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001322 for (j = 0, spccnt = 0; stat_str[j] && spccnt < 2; j++) {
Denis Vlasenko9213a9e2006-09-17 16:28:10 +00001323 if (stat_str[j] == ' ') spccnt++;
Glenn L McGrathe7386612001-09-21 04:30:51 +00001324 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001325 s2 = stat_str[j];
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001326
Glenn L McGrathe7386612001-09-21 04:30:51 +00001327 /* print out the line formatted like Debian dpkg */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001328 printf("%c%c %-14s %s\n", s1, s2, name_str, vers_str);
Glenn L McGrathe7386612001-09-21 04:30:51 +00001329 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001330 }
Glenn L McGrathe7386612001-09-21 04:30:51 +00001331}
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001332
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001333static void remove_package(const unsigned package_num, int noisy)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001334{
1335 const char *package_name = name_hashtable[package_hashtable[package_num]->name];
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001336 const char *package_version = name_hashtable[package_hashtable[package_num]->version];
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001337 const unsigned status_num = search_status_hashtable(package_name);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001338 const int package_name_length = strlen(package_name);
1339 char **remove_files;
1340 char **exclude_files;
1341 char list_name[package_name_length + 25];
1342 char conffile_name[package_name_length + 30];
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001343
Denis Vlasenko57308af2006-09-28 22:34:46 +00001344 if (noisy)
1345 printf("Removing %s (%s)...\n", package_name, package_version);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001346
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001347 /* Run prerm script */
1348 run_package_script_or_die(package_name, "prerm");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001349
Eric Andersenaff114c2004-04-14 17:51:38 +00001350 /* Create a list of files to remove, and a separate list of those to keep */
Denis Vlasenkod235f582008-06-21 22:46:58 +00001351 sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001352 remove_files = create_list(list_name);
1353
Denis Vlasenkod235f582008-06-21 22:46:58 +00001354 sprintf(conffile_name, "/var/lib/dpkg/info/%s.%s", package_name, "conffiles");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001355 exclude_files = create_list(conffile_name);
1356
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +00001357 /* Some directories can't be removed straight away, so do multiple passes */
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001358 while (remove_file_array(remove_files, exclude_files))
1359 continue;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001360 free_array(exclude_files);
1361 free_array(remove_files);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001362
1363 /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep */
Rob Landley1ec5b292006-05-29 07:42:02 +00001364 exclude_files = xzalloc(sizeof(char*) * 3);
Rob Landleyd921b2e2006-08-03 15:41:12 +00001365 exclude_files[0] = xstrdup(conffile_name);
Denis Vlasenkod235f582008-06-21 22:46:58 +00001366 exclude_files[1] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "postrm");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001367
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001368 /* Create a list of all /var/lib/dpkg/info/<package> files */
1369 remove_files = all_control_list(package_name);
1370
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001371 remove_file_array(remove_files, exclude_files);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001372 free_array(remove_files);
1373 free_array(exclude_files);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001374
Bernhard Reutner-Fischerf0d60682008-06-05 12:18:42 +00001375 /* rename <package>.conffiles to <package>.list
1376 * The conffiles control file isn't required in Debian packages, so don't
1377 * error out if it's missing. */
1378 rename(conffile_name, list_name);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001379
1380 /* Change package status */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001381 set_status(status_num, "config-files", 3);
1382}
1383
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001384static void purge_package(const unsigned package_num)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001385{
1386 const char *package_name = name_hashtable[package_hashtable[package_num]->name];
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001387 const char *package_version = name_hashtable[package_hashtable[package_num]->version];
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001388 const unsigned status_num = search_status_hashtable(package_name);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001389 char **remove_files;
1390 char **exclude_files;
1391 char list_name[strlen(package_name) + 25];
1392
Denis Vlasenko57308af2006-09-28 22:34:46 +00001393 printf("Purging %s (%s)...\n", package_name, package_version);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001394
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001395 /* Run prerm script */
1396 run_package_script_or_die(package_name, "prerm");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001397
1398 /* Create a list of files to remove */
Denis Vlasenkod235f582008-06-21 22:46:58 +00001399 sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001400 remove_files = create_list(list_name);
1401
Rob Landley1ec5b292006-05-29 07:42:02 +00001402 exclude_files = xzalloc(sizeof(char*));
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001403
1404 /* Some directories cant be removed straight away, so do multiple passes */
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +00001405 while (remove_file_array(remove_files, exclude_files)) /* repeat */;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001406 free_array(remove_files);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001407
1408 /* Create a list of all /var/lib/dpkg/info/<package> files */
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001409 remove_files = all_control_list(package_name);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001410 remove_file_array(remove_files, exclude_files);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001411 free_array(remove_files);
1412 free(exclude_files);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001413
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001414 /* Run postrm script */
1415 run_package_script_or_die(package_name, "postrm");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001416
1417 /* Change package status */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001418 set_status(status_num, "not-installed", 3);
1419}
1420
Glenn L McGrath747381c2002-11-06 22:54:41 +00001421static archive_handle_t *init_archive_deb_ar(const char *filename)
Glenn L McGrath61b79042002-10-19 10:40:55 +00001422{
Glenn L McGrath747381c2002-11-06 22:54:41 +00001423 archive_handle_t *ar_handle;
Glenn L McGrath61b79042002-10-19 10:40:55 +00001424
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001425 /* Setup an ar archive handle that refers to the gzip sub archive */
Glenn L McGrath747381c2002-11-06 22:54:41 +00001426 ar_handle = init_handle();
1427 ar_handle->filter = filter_accept_list_reassign;
Rob Landleyd921b2e2006-08-03 15:41:12 +00001428 ar_handle->src_fd = xopen(filename, O_RDONLY);
Glenn L McGrath61b79042002-10-19 10:40:55 +00001429
Denis Vlasenko54928842006-09-28 22:35:42 +00001430 return ar_handle;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001431}
Glenn L McGrath61b79042002-10-19 10:40:55 +00001432
Glenn L McGrath747381c2002-11-06 22:54:41 +00001433static void init_archive_deb_control(archive_handle_t *ar_handle)
1434{
1435 archive_handle_t *tar_handle;
1436
1437 /* Setup the tar archive handle */
1438 tar_handle = init_handle();
Glenn L McGrath747381c2002-11-06 22:54:41 +00001439 tar_handle->src_fd = ar_handle->src_fd;
1440
Eric Andersenaff114c2004-04-14 17:51:38 +00001441 /* We don't care about data.tar.* or debian-binary, just control.tar.* */
Denis Vlasenkodbe6e662007-08-14 16:43:01 +00001442#if ENABLE_FEATURE_DEB_TAR_GZ
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001443 llist_add_to(&(ar_handle->accept), (char*)"control.tar.gz");
Glenn L McGrath747381c2002-11-06 22:54:41 +00001444#endif
Denis Vlasenkodbe6e662007-08-14 16:43:01 +00001445#if ENABLE_FEATURE_DEB_TAR_BZ2
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001446 llist_add_to(&(ar_handle->accept), (char*)"control.tar.bz2");
Glenn L McGrath747381c2002-11-06 22:54:41 +00001447#endif
1448
1449 /* Assign the tar handle as a subarchive of the ar handle */
1450 ar_handle->sub_archive = tar_handle;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001451}
1452
1453static void init_archive_deb_data(archive_handle_t *ar_handle)
1454{
1455 archive_handle_t *tar_handle;
1456
1457 /* Setup the tar archive handle */
1458 tar_handle = init_handle();
Glenn L McGrath747381c2002-11-06 22:54:41 +00001459 tar_handle->src_fd = ar_handle->src_fd;
1460
Eric Andersenaff114c2004-04-14 17:51:38 +00001461 /* We don't care about control.tar.* or debian-binary, just data.tar.* */
Denis Vlasenkodbe6e662007-08-14 16:43:01 +00001462#if ENABLE_FEATURE_DEB_TAR_GZ
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001463 llist_add_to(&(ar_handle->accept), (char*)"data.tar.gz");
Glenn L McGrath747381c2002-11-06 22:54:41 +00001464#endif
Denis Vlasenkodbe6e662007-08-14 16:43:01 +00001465#if ENABLE_FEATURE_DEB_TAR_BZ2
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001466 llist_add_to(&(ar_handle->accept), (char*)"data.tar.bz2");
Glenn L McGrath747381c2002-11-06 22:54:41 +00001467#endif
1468
1469 /* Assign the tar handle as a subarchive of the ar handle */
1470 ar_handle->sub_archive = tar_handle;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001471}
1472
Eric Andersen1393a392003-09-15 08:06:15 +00001473static char *deb_extract_control_file_to_buffer(archive_handle_t *ar_handle, llist_t *myaccept)
Glenn L McGrath747381c2002-11-06 22:54:41 +00001474{
1475 ar_handle->sub_archive->action_data = data_extract_to_buffer;
Eric Andersen1393a392003-09-15 08:06:15 +00001476 ar_handle->sub_archive->accept = myaccept;
Paul Fox37dd6242005-07-22 13:17:41 +00001477 ar_handle->sub_archive->filter = filter_accept_list;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001478
1479 unpack_ar_archive(ar_handle);
1480 close(ar_handle->src_fd);
1481
Denis Vlasenko54928842006-09-28 22:35:42 +00001482 return ar_handle->sub_archive->buffer;
Glenn L McGrath61b79042002-10-19 10:40:55 +00001483}
1484
Glenn L McGrath6ab32eb2002-11-03 11:57:10 +00001485static void data_extract_all_prefix(archive_handle_t *archive_handle)
1486{
1487 char *name_ptr = archive_handle->file_header->name;
1488
1489 name_ptr += strspn(name_ptr, "./");
1490 if (name_ptr[0] != '\0') {
Rob Landleyd921b2e2006-08-03 15:41:12 +00001491 archive_handle->file_header->name = xasprintf("%s%s", archive_handle->buffer, name_ptr);
Glenn L McGrath6ab32eb2002-11-03 11:57:10 +00001492 data_extract_all(archive_handle);
1493 }
Glenn L McGrath6ab32eb2002-11-03 11:57:10 +00001494}
1495
1496static void unpack_package(deb_file_t *deb_file)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001497{
1498 const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001499 const unsigned status_num = search_status_hashtable(package_name);
1500 const unsigned status_package_num = status_hashtable[status_num]->package;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001501 char *info_prefix;
Denis Vlasenko1da6a212006-09-03 16:33:58 +00001502 char *list_filename;
Glenn L McGrath61b79042002-10-19 10:40:55 +00001503 archive_handle_t *archive_handle;
1504 FILE *out_stream;
Denis Vlasenkod235f582008-06-21 22:46:58 +00001505 llist_t *accept_list;
1506 int i;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001507
1508 /* If existing version, remove it first */
1509 if (strcmp(name_hashtable[get_status(status_num, 3)], "installed") == 0) {
1510 /* Package is already installed, remove old version first */
Denis Vlasenko57308af2006-09-28 22:34:46 +00001511 printf("Preparing to replace %s %s (using %s)...\n", package_name,
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001512 name_hashtable[package_hashtable[status_package_num]->version],
1513 deb_file->filename);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001514 remove_package(status_package_num, 0);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001515 } else {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001516 printf("Unpacking %s (from %s)...\n", package_name, deb_file->filename);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001517 }
1518
1519 /* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */
Denis Vlasenkod235f582008-06-21 22:46:58 +00001520 info_prefix = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "");
Glenn L McGrath747381c2002-11-06 22:54:41 +00001521 archive_handle = init_archive_deb_ar(deb_file->filename);
1522 init_archive_deb_control(archive_handle);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001523
Denis Vlasenkod235f582008-06-21 22:46:58 +00001524 accept_list = NULL;
1525 i = 0;
1526 while (i < ARRAY_SIZE(all_control_files)) {
Rob Landleyd921b2e2006-08-03 15:41:12 +00001527 char *c = xasprintf("./%s", all_control_files[i]);
Rob Landley8bb50782006-05-26 23:44:51 +00001528 llist_add_to(&accept_list, c);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001529 i++;
1530 }
1531 archive_handle->sub_archive->accept = accept_list;
1532 archive_handle->sub_archive->filter = filter_accept_list;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001533 archive_handle->sub_archive->action_data = data_extract_all_prefix;
1534 archive_handle->sub_archive->buffer = info_prefix;
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001535 archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001536 unpack_ar_archive(archive_handle);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001537
1538 /* Run the preinst prior to extracting */
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001539 run_package_script_or_die(package_name, "preinst");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001540
1541 /* Extract data.tar.gz to the root directory */
Glenn L McGrath747381c2002-11-06 22:54:41 +00001542 archive_handle = init_archive_deb_ar(deb_file->filename);
1543 init_archive_deb_data(archive_handle);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001544 archive_handle->sub_archive->action_data = data_extract_all_prefix;
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001545 archive_handle->sub_archive->buffer = (char*)"/"; /* huh? */
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001546 archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001547 unpack_ar_archive(archive_handle);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001548
1549 /* Create the list file */
Denis Vlasenkod235f582008-06-21 22:46:58 +00001550 list_filename = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "list");
Rob Landley02496aa2006-09-05 13:48:21 +00001551 out_stream = xfopen(list_filename, "w");
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001552 while (archive_handle->sub_archive->passed) {
1553 /* the leading . has been stripped by data_extract_all_prefix already */
1554 fputs(archive_handle->sub_archive->passed->data, out_stream);
Glenn L McGrath61b79042002-10-19 10:40:55 +00001555 fputc('\n', out_stream);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001556 archive_handle->sub_archive->passed = archive_handle->sub_archive->passed->link;
Glenn L McGrath61b79042002-10-19 10:40:55 +00001557 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001558 fclose(out_stream);
1559
1560 /* change status */
1561 set_status(status_num, "install", 1);
1562 set_status(status_num, "unpacked", 3);
1563
1564 free(info_prefix);
Denis Vlasenko1da6a212006-09-03 16:33:58 +00001565 free(list_filename);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001566}
1567
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001568static void configure_package(deb_file_t *deb_file)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001569{
1570 const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
1571 const char *package_version = name_hashtable[package_hashtable[deb_file->package]->version];
1572 const int status_num = search_status_hashtable(package_name);
1573
Denis Vlasenko57308af2006-09-28 22:34:46 +00001574 printf("Setting up %s (%s)...\n", package_name, package_version);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001575
1576 /* Run the postinst script */
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001577 /* TODO: handle failure gracefully */
1578 run_package_script_or_die(package_name, "postinst");
1579
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001580 /* Change status to reflect success */
1581 set_status(status_num, "install", 1);
1582 set_status(status_num, "installed", 3);
1583}
Glenn L McGrathc9005752001-02-10 02:05:24 +00001584
Denis Vlasenko9b49a5e2007-10-11 10:05:36 +00001585int dpkg_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
Denis Vlasenkod235f582008-06-21 22:46:58 +00001586int dpkg_main(int argc ATTRIBUTE_UNUSED, char **argv)
Glenn L McGrathc9005752001-02-10 02:05:24 +00001587{
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001588 deb_file_t **deb_file = NULL;
1589 status_node_t *status_node;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001590 char *str_f;
Matt Kraaiefd7f032001-11-19 21:07:15 +00001591 int opt;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001592 int package_num;
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001593 int deb_count = 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001594 int state_status;
1595 int status_num;
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001596 int i;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001597 enum {
1598 OPT_configure = 0x1,
1599 OPT_force_ignore_depends = 0x2,
1600 OPT_install = 0x4,
1601 OPT_list_installed = 0x8,
1602 OPT_purge = 0x10,
1603 OPT_remove = 0x20,
1604 OPT_unpack = 0x40,
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001605 };
1606
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001607 INIT_G();
1608
Denis Vlasenkofe7cd642007-08-18 15:32:12 +00001609 opt = getopt32(argv, "CF:ilPru", &str_f);
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001610 //if (opt & OPT_configure) ... // -C
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001611 if (opt & OPT_force_ignore_depends) { // -F (--force in official dpkg)
1612 if (strcmp(str_f, "depends"))
1613 opt &= ~OPT_force_ignore_depends;
1614 }
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001615 //if (opt & OPT_install) ... // -i
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001616 //if (opt & OPT_list_installed) ... // -l
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001617 //if (opt & OPT_purge) ... // -P
1618 //if (opt & OPT_remove) ... // -r
1619 //if (opt & OPT_unpack) ... // -u (--unpack in official dpkg)
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001620 argv += optind;
1621 /* check for non-option argument if expected */
Denis Vlasenkod235f582008-06-21 22:46:58 +00001622 if (!opt || (!argv[0] && !(opt && OPT_list_installed)))
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001623 bb_show_usage();
Glenn L McGrath0e757a22001-04-08 05:27:18 +00001624
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001625/* puts("(Reading database ... xxxxx files and directories installed.)"); */
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001626 index_status_file("/var/lib/dpkg/status");
1627
Glenn L McGrathe7386612001-09-21 04:30:51 +00001628 /* if the list action was given print the installed packages and exit */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001629 if (opt & OPT_list_installed) {
Glenn L McGrathe7386612001-09-21 04:30:51 +00001630 list_packages();
Denis Vlasenko54928842006-09-28 22:35:42 +00001631 return EXIT_SUCCESS;
Glenn L McGrathe7386612001-09-21 04:30:51 +00001632 }
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001633
Glenn L McGrath0d2fb762001-10-25 14:26:05 +00001634 /* Read arguments and store relevant info in structs */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001635 while (*argv) {
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001636 /* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001637 deb_file = xrealloc(deb_file, sizeof(deb_file[0]) * (deb_count + 2));
1638 deb_file[deb_count] = xzalloc(sizeof(deb_file[0][0]));
1639 if (opt & (OPT_install | OPT_unpack)) {
1640 /* -i/-u: require filename */
Glenn L McGrath61b79042002-10-19 10:40:55 +00001641 archive_handle_t *archive_handle;
Glenn L McGrath66125c82002-12-08 00:54:33 +00001642 llist_t *control_list = NULL;
Glenn L McGrathd8d11912002-11-05 13:56:04 +00001643
Glenn L McGrath747381c2002-11-06 22:54:41 +00001644 /* Extract the control file */
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001645 llist_add_to(&control_list, (char*)"./control");
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001646 archive_handle = init_archive_deb_ar(argv[0]);
Glenn L McGrath747381c2002-11-06 22:54:41 +00001647 init_archive_deb_control(archive_handle);
1648 deb_file[deb_count]->control_file = deb_extract_control_file_to_buffer(archive_handle, control_list);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001649 if (deb_file[deb_count]->control_file == NULL) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001650 bb_error_msg_and_die("cannot extract control file");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001651 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001652 deb_file[deb_count]->filename = xstrdup(argv[0]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001653 package_num = fill_package_struct(deb_file[deb_count]->control_file);
Glenn L McGrath0d2fb762001-10-25 14:26:05 +00001654
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001655 if (package_num == -1) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001656 bb_error_msg("invalid control file in %s", argv[0]);
1657 argv++;
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001658 continue;
1659 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001660 deb_file[deb_count]->package = (unsigned) package_num;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001661
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001662 /* Add the package to the status hashtable */
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001663 if (opt & (OPT_unpack | OPT_install)) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001664 /* Try and find a currently installed version of this package */
1665 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
1666 /* If no previous entry was found initialise a new entry */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001667 if (status_hashtable[status_num] == NULL
1668 || status_hashtable[status_num]->status == 0
1669 ) {
Denis Vlasenkob95636c2006-12-19 23:36:04 +00001670 status_node = xmalloc(sizeof(status_node_t));
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001671 status_node->package = deb_file[deb_count]->package;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001672 /* reinstreq isnt changed to "ok" until the package control info
1673 * is written to the status file*/
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001674 status_node->status = search_name_hashtable("install reinstreq not-installed");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001675 status_hashtable[status_num] = status_node;
1676 } else {
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001677 set_status(status_num, "install", 1);
1678 set_status(status_num, "reinstreq", 2);
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001679 }
1680 }
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001681 } else if (opt & (OPT_configure | OPT_purge | OPT_remove)) {
1682 /* -C/-p/-r: require package name */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001683 deb_file[deb_count]->package = search_package_hashtable(
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001684 search_name_hashtable(argv[0]),
1685 search_name_hashtable("ANY"), VER_ANY);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001686 if (package_hashtable[deb_file[deb_count]->package] == NULL) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001687 bb_error_msg_and_die("package %s is uninstalled or unknown", argv[0]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001688 }
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001689 package_num = deb_file[deb_count]->package;
1690 status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
1691 state_status = get_status(status_num, 3);
Glenn L McGrath0d2fb762001-10-25 14:26:05 +00001692
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001693 /* check package status is "installed" */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001694 if (opt & OPT_remove) {
1695 if (strcmp(name_hashtable[state_status], "not-installed") == 0
1696 || strcmp(name_hashtable[state_status], "config-files") == 0
1697 ) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001698 bb_error_msg_and_die("%s is already removed", name_hashtable[package_hashtable[package_num]->name]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001699 }
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001700 set_status(status_num, "deinstall", 1);
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001701 } else if (opt & OPT_purge) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001702 /* if package status is "conf-files" then its ok */
1703 if (strcmp(name_hashtable[state_status], "not-installed") == 0) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001704 bb_error_msg_and_die("%s is already purged", name_hashtable[package_hashtable[package_num]->name]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001705 }
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001706 set_status(status_num, "purge", 1);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001707 }
1708 }
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001709 deb_count++;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001710 argv++;
Glenn L McGrath0e757a22001-04-08 05:27:18 +00001711 }
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001712 if (!deb_count)
1713 bb_error_msg_and_die("no package files specified");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001714 deb_file[deb_count] = NULL;
Glenn L McGrath0e757a22001-04-08 05:27:18 +00001715
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001716 /* Check that the deb file arguments are installable */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001717 if (!(opt & OPT_force_ignore_depends)) {
Denis Vlasenko68404f12008-03-17 09:00:54 +00001718 if (!check_deps(deb_file, 0 /*, deb_count*/)) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001719 bb_error_msg_and_die("dependency check failed");
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001720 }
Glenn L McGrath0d2fb762001-10-25 14:26:05 +00001721 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001722
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001723 /* TODO: install or remove packages in the correct dependency order */
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001724 for (i = 0; i < deb_count; i++) {
1725 /* Remove or purge packages */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001726 if (opt & OPT_remove) {
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001727 remove_package(deb_file[i]->package, 1);
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001728 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001729 else if (opt & OPT_purge) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001730 purge_package(deb_file[i]->package);
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001731 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001732 else if (opt & OPT_unpack) {
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001733 unpack_package(deb_file[i]);
1734 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001735 else if (opt & OPT_install) {
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001736 unpack_package(deb_file[i]);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001737 /* package is configured in second pass below */
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001738 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001739 else if (opt & OPT_configure) {
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001740 configure_package(deb_file[i]);
1741 }
1742 }
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001743 /* configure installed packages */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001744 if (opt & OPT_install) {
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001745 for (i = 0; i < deb_count; i++)
1746 configure_package(deb_file[i]);
1747 }
Glenn L McGrathc3fbec72001-07-18 15:47:21 +00001748
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001749 write_status_file(deb_file);
1750
Denis Vlasenko57308af2006-09-28 22:34:46 +00001751 if (ENABLE_FEATURE_CLEAN_UP) {
1752 for (i = 0; i < deb_count; i++) {
1753 free(deb_file[i]->control_file);
1754 free(deb_file[i]->filename);
1755 free(deb_file[i]);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001756 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001757
Denis Vlasenko57308af2006-09-28 22:34:46 +00001758 free(deb_file);
1759
1760 for (i = 0; i < NAME_HASH_PRIME; i++) {
1761 free(name_hashtable[i]);
1762 }
1763
1764 for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
Denis Vlasenko88a2aa92007-03-19 21:48:56 +00001765 free_package(package_hashtable[i]);
Denis Vlasenko57308af2006-09-28 22:34:46 +00001766 }
1767
1768 for (i = 0; i < STATUS_HASH_PRIME; i++) {
1769 free(status_hashtable[i]);
1770 }
1771
1772 free(status_hashtable);
1773 free(package_hashtable);
1774 free(name_hashtable);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001775 }
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001776
Denis Vlasenko54928842006-09-28 22:35:42 +00001777 return EXIT_SUCCESS;
Eric Andersen67991cf2001-02-14 21:23:06 +00001778}