blob: 1db53f4940ea355da718d1fbe28f7cdd9e699d87 [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
78/* Were statically declared here, but such a big bss is nommu-unfriendly */
79static char **name_hashtable; /* [NAME_HASH_PRIME + 1] */
80static common_node_t **package_hashtable; /* [PACKAGE_HASH_PRIME + 1] */
81static status_node_t **status_hashtable; /* [STATUS_HASH_PRIME + 1] */
Glenn L McGrathef0eab52001-10-25 14:49:48 +000082
Eric Andersenaff114c2004-04-14 17:51:38 +000083/* Even numbers are for 'extras', like ored dependencies or null */
Glenn L McGrathef0eab52001-10-25 14:49:48 +000084enum edge_type_e {
85 EDGE_NULL = 0,
86 EDGE_PRE_DEPENDS = 1,
87 EDGE_OR_PRE_DEPENDS = 2,
88 EDGE_DEPENDS = 3,
89 EDGE_OR_DEPENDS = 4,
90 EDGE_REPLACES = 5,
91 EDGE_PROVIDES = 7,
92 EDGE_CONFLICTS = 9,
93 EDGE_SUGGESTS = 11,
94 EDGE_RECOMMENDS = 13,
95 EDGE_ENHANCES = 15
Glenn L McGrathccd65c92001-07-13 18:35:24 +000096};
Glenn L McGrathef0eab52001-10-25 14:49:48 +000097enum operator_e {
98 VER_NULL = 0,
99 VER_EQUAL = 1,
100 VER_LESS = 2,
101 VER_LESS_EQUAL = 3,
102 VER_MORE = 4,
103 VER_MORE_EQUAL = 5,
104 VER_ANY = 6
105};
106
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000107typedef struct deb_file_s {
108 char *control_file;
109 char *filename;
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000110 unsigned package:16; /* was:14 */
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000111} deb_file_t;
112
113
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000114static void make_hash(const char *key, unsigned *start, unsigned *decrement, const int hash_prime)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000115{
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000116 unsigned long hash_num = key[0];
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000117 int len = strlen(key);
118 int i;
119
120 /* Maybe i should have uses a "proper" hashing algorithm here instead
121 * of making one up myself, seems to be working ok though. */
Denis Vlasenko57308af2006-09-28 22:34:46 +0000122 for (i = 1; i < len; i++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000123 /* shifts the ascii based value and adds it to previous value
124 * shift amount is mod 24 because long int is 32 bit and data
Eric Andersenaff114c2004-04-14 17:51:38 +0000125 * to be shifted is 8, don't want to shift data to where it has
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000126 * no effect*/
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000127 hash_num += ((key[i] + key[i-1]) << ((key[i] * i) % 24));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000128 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000129 *start = (unsigned) hash_num % hash_prime;
130 *decrement = (unsigned) 1 + (hash_num % (hash_prime - 1));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000131}
132
133/* this adds the key to the hash table */
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000134static int search_name_hashtable(const char *key)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000135{
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000136 unsigned probe_address = 0;
137 unsigned probe_decrement = 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000138
139 make_hash(key, &probe_address, &probe_decrement, NAME_HASH_PRIME);
Denis Vlasenko57308af2006-09-28 22:34:46 +0000140 while (name_hashtable[probe_address] != NULL) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000141 if (strcmp(name_hashtable[probe_address], key) == 0) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000142 return probe_address;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000143 }
144 probe_address -= probe_decrement;
145 if ((int)probe_address < 0) {
146 probe_address += NAME_HASH_PRIME;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000147 }
148 }
Rob Landleyd921b2e2006-08-03 15:41:12 +0000149 name_hashtable[probe_address] = xstrdup(key);
Denis Vlasenko54928842006-09-28 22:35:42 +0000150 return probe_address;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000151}
152
153/* this DOESNT add the key to the hashtable
154 * TODO make it consistent with search_name_hashtable
155 */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000156static unsigned search_status_hashtable(const char *key)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000157{
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000158 unsigned probe_address = 0;
159 unsigned probe_decrement = 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000160
161 make_hash(key, &probe_address, &probe_decrement, STATUS_HASH_PRIME);
Denis Vlasenko57308af2006-09-28 22:34:46 +0000162 while (status_hashtable[probe_address] != NULL) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000163 if (strcmp(key, name_hashtable[package_hashtable[status_hashtable[probe_address]->package]->name]) == 0) {
164 break;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000165 }
166 probe_address -= probe_decrement;
167 if ((int)probe_address < 0) {
168 probe_address += STATUS_HASH_PRIME;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000169 }
170 }
Denis Vlasenko54928842006-09-28 22:35:42 +0000171 return probe_address;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000172}
173
174/* Need to rethink version comparison, maybe the official dpkg has something i can use ? */
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000175static int version_compare_part(const char *version1, const char *version2)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000176{
177 int upstream_len1 = 0;
178 int upstream_len2 = 0;
179 char *name1_char;
180 char *name2_char;
181 int len1 = 0;
182 int len2 = 0;
183 int tmp_int;
184 int ver_num1;
185 int ver_num2;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000186
187 if (version1 == NULL) {
Rob Landleyd921b2e2006-08-03 15:41:12 +0000188 version1 = xstrdup("");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000189 }
190 if (version2 == NULL) {
Rob Landleyd921b2e2006-08-03 15:41:12 +0000191 version2 = xstrdup("");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000192 }
193 upstream_len1 = strlen(version1);
194 upstream_len2 = strlen(version2);
195
196 while ((len1 < upstream_len1) || (len2 < upstream_len2)) {
197 /* Compare non-digit section */
198 tmp_int = strcspn(&version1[len1], "0123456789");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000199 name1_char = xstrndup(&version1[len1], tmp_int);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000200 len1 += tmp_int;
201 tmp_int = strcspn(&version2[len2], "0123456789");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000202 name2_char = xstrndup(&version2[len2], tmp_int);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000203 len2 += tmp_int;
204 tmp_int = strcmp(name1_char, name2_char);
205 free(name1_char);
206 free(name2_char);
207 if (tmp_int != 0) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000208 return tmp_int;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000209 }
210
211 /* Compare digits */
212 tmp_int = strspn(&version1[len1], "0123456789");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000213 name1_char = xstrndup(&version1[len1], tmp_int);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000214 len1 += tmp_int;
215 tmp_int = strspn(&version2[len2], "0123456789");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000216 name2_char = xstrndup(&version2[len2], tmp_int);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000217 len2 += tmp_int;
218 ver_num1 = atoi(name1_char);
219 ver_num2 = atoi(name2_char);
220 free(name1_char);
221 free(name2_char);
222 if (ver_num1 < ver_num2) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000223 return -1;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000224 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000225 if (ver_num1 > ver_num2) {
226 return 1;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000227 }
228 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000229 return 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000230}
231
232/* if ver1 < ver2 return -1,
233 * if ver1 = ver2 return 0,
234 * if ver1 > ver2 return 1,
235 */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000236static int version_compare(const unsigned ver1, const unsigned ver2)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000237{
238 char *ch_ver1 = name_hashtable[ver1];
239 char *ch_ver2 = name_hashtable[ver2];
240
241 char epoch1, epoch2;
242 char *deb_ver1, *deb_ver2;
243 char *ver1_ptr, *ver2_ptr;
244 char *upstream_ver1;
245 char *upstream_ver2;
246 int result;
247
248 /* Compare epoch */
249 if (ch_ver1[1] == ':') {
250 epoch1 = ch_ver1[0];
251 ver1_ptr = strchr(ch_ver1, ':') + 1;
252 } else {
253 epoch1 = '0';
254 ver1_ptr = ch_ver1;
255 }
256 if (ch_ver2[1] == ':') {
257 epoch2 = ch_ver2[0];
258 ver2_ptr = strchr(ch_ver2, ':') + 1;
259 } else {
260 epoch2 = '0';
261 ver2_ptr = ch_ver2;
262 }
263 if (epoch1 < epoch2) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000264 return -1;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000265 }
266 else if (epoch1 > epoch2) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000267 return 1;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000268 }
269
270 /* Compare upstream version */
Rob Landleyd921b2e2006-08-03 15:41:12 +0000271 upstream_ver1 = xstrdup(ver1_ptr);
272 upstream_ver2 = xstrdup(ver2_ptr);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000273
274 /* Chop off debian version, and store for later use */
275 deb_ver1 = strrchr(upstream_ver1, '-');
276 deb_ver2 = strrchr(upstream_ver2, '-');
277 if (deb_ver1) {
278 deb_ver1[0] = '\0';
279 deb_ver1++;
280 }
281 if (deb_ver2) {
282 deb_ver2[0] = '\0';
283 deb_ver2++;
284 }
285 result = version_compare_part(upstream_ver1, upstream_ver2);
Denis Vlasenkoaecabff2006-09-30 21:05:25 +0000286 if (!result)
287 /* Compare debian versions */
288 result = version_compare_part(deb_ver1, deb_ver2);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000289
290 free(upstream_ver1);
291 free(upstream_ver2);
Denis Vlasenkoaecabff2006-09-30 21:05:25 +0000292 return result;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000293}
294
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000295static int test_version(const unsigned version1, const unsigned version2, const unsigned operator)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000296{
297 const int version_result = version_compare(version1, version2);
Denis Vlasenkoc16bd212006-09-27 19:51:06 +0000298 switch (operator) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000299 case VER_ANY:
300 return TRUE;
301 case VER_EQUAL:
302 return (version_result == 0);
303 case VER_LESS:
304 return (version_result < 0);
305 case VER_LESS_EQUAL:
306 return (version_result <= 0);
307 case VER_MORE:
308 return (version_result > 0);
309 case VER_MORE_EQUAL:
310 return (version_result >= 0);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000311 }
Denis Vlasenko54928842006-09-28 22:35:42 +0000312 return FALSE;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000313}
314
315
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000316static int search_package_hashtable(const unsigned name, const unsigned version, const unsigned operator)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000317{
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000318 unsigned probe_address = 0;
319 unsigned probe_decrement = 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000320
321 make_hash(name_hashtable[name], &probe_address, &probe_decrement, PACKAGE_HASH_PRIME);
Denis Vlasenko57308af2006-09-28 22:34:46 +0000322 while (package_hashtable[probe_address] != NULL) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000323 if (package_hashtable[probe_address]->name == name) {
324 if (operator == VER_ANY) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000325 return probe_address;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000326 }
327 if (test_version(package_hashtable[probe_address]->version, version, operator)) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000328 return probe_address;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000329 }
330 }
331 probe_address -= probe_decrement;
332 if ((int)probe_address < 0) {
333 probe_address += PACKAGE_HASH_PRIME;
334 }
335 }
Denis Vlasenko54928842006-09-28 22:35:42 +0000336 return probe_address;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000337}
338
339/*
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000340 * This function searches through the entire package_hashtable looking
341 * for a package which provides "needle". It returns the index into
Eric Andersenaff114c2004-04-14 17:51:38 +0000342 * the package_hashtable for the providing package.
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000343 *
344 * needle is the index into name_hashtable of the package we are
345 * looking for.
346 *
347 * start_at is the index in the package_hashtable to start looking
348 * at. If start_at is -1 then start at the beginning. This is to allow
349 * for repeated searches since more than one package might provide
350 * needle.
351 *
352 * FIXME: I don't think this is very efficient, but I thought I'd keep
353 * it simple for now until it proves to be a problem.
354 */
Denis Vlasenkoac678ec2007-04-16 22:32:04 +0000355static int search_for_provides(int needle, int start_at)
356{
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000357 int i, j;
358 common_node_t *p;
359 for (i = start_at + 1; i < PACKAGE_HASH_PRIME; i++) {
360 p = package_hashtable[i];
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000361 if (p == NULL)
362 continue;
Denis Vlasenko57308af2006-09-28 22:34:46 +0000363 for (j = 0; j < p->num_of_edges; j++)
364 if (p->edge[j]->type == EDGE_PROVIDES && p->edge[j]->name == needle)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000365 return i;
366 }
367 return -1;
368}
369
370/*
371 * Add an edge to a node
372 */
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000373static void add_edge_to_node(common_node_t *node, edge_t *edge)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000374{
375 node->num_of_edges++;
376 node->edge = xrealloc(node->edge, sizeof(edge_t) * (node->num_of_edges + 1));
377 node->edge[node->num_of_edges - 1] = edge;
378}
379
380/*
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000381 * Create one new node and one new edge for every dependency.
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000382 *
383 * Dependencies which contain multiple alternatives are represented as
384 * an EDGE_OR_PRE_DEPENDS or EDGE_OR_DEPENDS node, followed by a
385 * number of EDGE_PRE_DEPENDS or EDGE_DEPENDS nodes. The name field of
386 * the OR edge contains the full dependency string while the version
387 * field contains the number of EDGE nodes which follow as part of
388 * this alternative.
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000389 */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000390static void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned edge_type)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000391{
Rob Landleyd921b2e2006-08-03 15:41:12 +0000392 char *line = xstrdup(whole_line);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000393 char *line2;
394 char *line_ptr1 = NULL;
395 char *line_ptr2 = NULL;
396 char *field;
397 char *field2;
398 char *version;
399 edge_t *edge;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000400 edge_t *or_edge;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000401 int offset_ch;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000402
403 field = strtok_r(line, ",", &line_ptr1);
404 do {
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000405 /* skip leading spaces */
406 field += strspn(field, " ");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000407 line2 = xstrdup(field);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000408 field2 = strtok_r(line2, "|", &line_ptr2);
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000409 or_edge = NULL;
410 if ((edge_type == EDGE_DEPENDS || edge_type == EDGE_PRE_DEPENDS)
411 && (strcmp(field, field2) != 0)
412 ) {
Denis Vlasenkob95636c2006-12-19 23:36:04 +0000413 or_edge = xmalloc(sizeof(edge_t));
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000414 or_edge->type = edge_type + 1;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000415 or_edge->name = search_name_hashtable(field);
Bernhard Reutner-Fischer6c501a72007-06-05 17:28:56 +0000416 or_edge->version = 0; // tracks the number of alternatives
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000417 add_edge_to_node(parent_node, or_edge);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000418 }
419
420 do {
Denis Vlasenkob95636c2006-12-19 23:36:04 +0000421 edge = xmalloc(sizeof(edge_t));
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000422 edge->type = edge_type;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000423
424 /* Skip any extra leading spaces */
425 field2 += strspn(field2, " ");
426
427 /* Get dependency version info */
428 version = strchr(field2, '(');
429 if (version == NULL) {
430 edge->operator = VER_ANY;
431 /* Get the versions hash number, adding it if the number isnt already in there */
432 edge->version = search_name_hashtable("ANY");
433 } else {
434 /* Skip leading ' ' or '(' */
Bernhard Reutner-Fischer6c501a72007-06-05 17:28:56 +0000435 version += strspn(version, " (");
Eric Andersenaff114c2004-04-14 17:51:38 +0000436 /* Calculate length of any operator characters */
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000437 offset_ch = strspn(version, "<=>");
438 /* Determine operator */
439 if (offset_ch > 0) {
440 if (strncmp(version, "=", offset_ch) == 0) {
441 edge->operator = VER_EQUAL;
442 }
443 else if (strncmp(version, "<<", offset_ch) == 0) {
444 edge->operator = VER_LESS;
445 }
446 else if (strncmp(version, "<=", offset_ch) == 0) {
447 edge->operator = VER_LESS_EQUAL;
448 }
449 else if (strncmp(version, ">>", offset_ch) == 0) {
450 edge->operator = VER_MORE;
451 }
452 else if (strncmp(version, ">=", offset_ch) == 0) {
453 edge->operator = VER_MORE_EQUAL;
454 } else {
Denis Vlasenko57308af2006-09-28 22:34:46 +0000455 bb_error_msg_and_die("illegal operator");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000456 }
457 }
458 /* skip to start of version numbers */
459 version += offset_ch;
460 version += strspn(version, " ");
461
462 /* Truncate version at trailing ' ' or ')' */
463 version[strcspn(version, " )")] = '\0';
464 /* Get the versions hash number, adding it if the number isnt already in there */
465 edge->version = search_name_hashtable(version);
466 }
467
468 /* Get the dependency name */
469 field2[strcspn(field2, " (")] = '\0';
470 edge->name = search_name_hashtable(field2);
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000471
Denis Vlasenko57308af2006-09-28 22:34:46 +0000472 if (or_edge)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000473 or_edge->version++;
474
475 add_edge_to_node(parent_node, edge);
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000476 field2 = strtok_r(NULL, "|", &line_ptr2);
477 } while (field2 != NULL);
478
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000479 free(line2);
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000480 field = strtok_r(NULL, ",", &line_ptr1);
481 } while (field != NULL);
482
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000483 free(line);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000484}
485
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000486static void free_package(common_node_t *node)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000487{
Denis Vlasenko54928842006-09-28 22:35:42 +0000488 unsigned i;
Glenn L McGratha94a06a2002-05-29 13:45:34 +0000489 if (node) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000490 for (i = 0; i < node->num_of_edges; i++) {
Aaron Lehmanna170e1c2002-11-28 11:27:31 +0000491 free(node->edge[i]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000492 }
Rob Landleye7c43b62006-03-01 16:39:45 +0000493 free(node->edge);
Glenn L McGratha94a06a2002-05-29 13:45:34 +0000494 free(node);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000495 }
496}
497
Rob Landleyd921b2e2006-08-03 15:41:12 +0000498/*
499 * Gets the next package field from package_buffer, seperated into the field name
500 * and field value, it returns the int offset to the first character of the next field
501 */
502static int read_package_field(const char *package_buffer, char **field_name, char **field_value)
503{
504 int offset_name_start = 0;
505 int offset_name_end = 0;
506 int offset_value_start = 0;
507 int offset_value_end = 0;
508 int offset = 0;
509 int next_offset;
510 int name_length;
511 int value_length;
512 int exit_flag = FALSE;
513
514 if (package_buffer == NULL) {
515 *field_name = NULL;
516 *field_value = NULL;
Denis Vlasenko54928842006-09-28 22:35:42 +0000517 return -1;
Rob Landleyd921b2e2006-08-03 15:41:12 +0000518 }
519 while (1) {
520 next_offset = offset + 1;
521 switch (package_buffer[offset]) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000522 case '\0':
Rob Landleyd921b2e2006-08-03 15:41:12 +0000523 exit_flag = TRUE;
524 break;
Denis Vlasenko54928842006-09-28 22:35:42 +0000525 case ':':
Rob Landleyd921b2e2006-08-03 15:41:12 +0000526 if (offset_name_end == 0) {
527 offset_name_end = offset;
528 offset_value_start = next_offset;
529 }
530 /* TODO: Name might still have trailing spaces if ':' isnt
531 * immediately after name */
532 break;
Denis Vlasenko54928842006-09-28 22:35:42 +0000533 case '\n':
Rob Landleyd921b2e2006-08-03 15:41:12 +0000534 /* TODO: The char next_offset may be out of bounds */
535 if (package_buffer[next_offset] != ' ') {
536 exit_flag = TRUE;
537 break;
538 }
Denis Vlasenko54928842006-09-28 22:35:42 +0000539 case '\t':
540 case ' ':
Rob Landleyd921b2e2006-08-03 15:41:12 +0000541 /* increment the value start point if its a just filler */
542 if (offset_name_start == offset) {
543 offset_name_start++;
544 }
545 if (offset_value_start == offset) {
546 offset_value_start++;
547 }
548 break;
549 }
550 if (exit_flag) {
551 /* Check that the names are valid */
552 offset_value_end = offset;
553 name_length = offset_name_end - offset_name_start;
554 value_length = offset_value_end - offset_value_start;
555 if (name_length == 0) {
556 break;
557 }
558 if ((name_length > 0) && (value_length > 0)) {
559 break;
560 }
561
562 /* If not valid, start fresh with next field */
563 exit_flag = FALSE;
564 offset_name_start = offset + 1;
565 offset_name_end = 0;
566 offset_value_start = offset + 1;
567 offset_value_end = offset + 1;
568 offset++;
569 }
570 offset++;
571 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000572 *field_name = NULL;
573 if (name_length) {
Rob Landleyd921b2e2006-08-03 15:41:12 +0000574 *field_name = xstrndup(&package_buffer[offset_name_start], name_length);
575 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000576 *field_value = NULL;
Rob Landleyd921b2e2006-08-03 15:41:12 +0000577 if (value_length > 0) {
578 *field_value = xstrndup(&package_buffer[offset_value_start], value_length);
Rob Landleyd921b2e2006-08-03 15:41:12 +0000579 }
Denis Vlasenko54928842006-09-28 22:35:42 +0000580 return next_offset;
Rob Landleyd921b2e2006-08-03 15:41:12 +0000581}
582
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000583static unsigned fill_package_struct(char *control_buffer)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000584{
Denis Vlasenko6ca409e2007-08-12 20:58:27 +0000585 static const char field_names[] ALIGN1 =
586 "Package\0""Version\0"
Denis Vlasenko990d0f62007-07-24 15:54:42 +0000587 "Pre-Depends\0""Depends\0""Replaces\0""Provides\0"
588 "Conflicts\0""Suggests\0""Recommends\0""Enhances\0";
Rob Landley0a7c8ef2006-02-22 17:01:00 +0000589
Denis Vlasenko4cccc032006-12-22 18:37:07 +0000590 common_node_t *new_node = xzalloc(sizeof(common_node_t));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000591 char *field_name;
592 char *field_value;
593 int field_start = 0;
594 int num = -1;
595 int buffer_length = strlen(control_buffer);
596
597 new_node->version = search_name_hashtable("unknown");
598 while (field_start < buffer_length) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000599 unsigned field_num;
Glenn L McGrath62d28822002-11-06 23:35:28 +0000600
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000601 field_start += read_package_field(&control_buffer[field_start],
602 &field_name, &field_value);
603
604 if (field_name == NULL) {
Denis Vlasenkoabee3d02007-12-26 20:44:45 +0000605 goto fill_package_struct_cleanup;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000606 }
607
Denis Vlasenko990d0f62007-07-24 15:54:42 +0000608 field_num = index_in_strings(field_names, field_name);
Denis Vlasenkoc16bd212006-09-27 19:51:06 +0000609 switch (field_num) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000610 case 0: /* Package */
611 new_node->name = search_name_hashtable(field_value);
612 break;
613 case 1: /* Version */
614 new_node->version = search_name_hashtable(field_value);
615 break;
616 case 2: /* Pre-Depends */
617 add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
618 break;
619 case 3: /* Depends */
620 add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
621 break;
622 case 4: /* Replaces */
623 add_split_dependencies(new_node, field_value, EDGE_REPLACES);
624 break;
625 case 5: /* Provides */
626 add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
627 break;
628 case 6: /* Conflicts */
629 add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
630 break;
631 case 7: /* Suggests */
632 add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
633 break;
634 case 8: /* Recommends */
635 add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
636 break;
637 case 9: /* Enhances */
638 add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
639 break;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000640 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000641 fill_package_struct_cleanup:
Aaron Lehmanna170e1c2002-11-28 11:27:31 +0000642 free(field_name);
643 free(field_value);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000644 }
645
646 if (new_node->version == search_name_hashtable("unknown")) {
647 free_package(new_node);
Denis Vlasenko54928842006-09-28 22:35:42 +0000648 return -1;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000649 }
650 num = search_package_hashtable(new_node->name, new_node->version, VER_EQUAL);
Denis Vlasenko88a2aa92007-03-19 21:48:56 +0000651 free_package(package_hashtable[num]);
Bernhard Reutner-Fischerde8a6a02007-03-19 13:44:18 +0000652 package_hashtable[num] = new_node;
Denis Vlasenko54928842006-09-28 22:35:42 +0000653 return num;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000654}
655
656/* if num = 1, it returns the want status, 2 returns flag, 3 returns status */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000657static unsigned get_status(const unsigned status_node, const int num)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000658{
659 char *status_string = name_hashtable[status_hashtable[status_node]->status];
660 char *state_sub_string;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000661 unsigned state_sub_num;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000662 int len;
663 int i;
664
665 /* set tmp_string to point to the start of the word number */
666 for (i = 1; i < num; i++) {
667 /* skip past a word */
668 status_string += strcspn(status_string, " ");
Eric Andersenaff114c2004-04-14 17:51:38 +0000669 /* skip past the separating spaces */
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000670 status_string += strspn(status_string, " ");
671 }
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +0000672 len = strcspn(status_string, " \n");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000673 state_sub_string = xstrndup(status_string, len);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000674 state_sub_num = search_name_hashtable(state_sub_string);
675 free(state_sub_string);
Denis Vlasenko54928842006-09-28 22:35:42 +0000676 return state_sub_num;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000677}
678
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000679static void set_status(const unsigned status_node_num, const char *new_value, const int position)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000680{
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000681 const unsigned new_value_len = strlen(new_value);
682 const unsigned new_value_num = search_name_hashtable(new_value);
683 unsigned want = get_status(status_node_num, 1);
684 unsigned flag = get_status(status_node_num, 2);
685 unsigned status = get_status(status_node_num, 3);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000686 int want_len = strlen(name_hashtable[want]);
687 int flag_len = strlen(name_hashtable[flag]);
688 int status_len = strlen(name_hashtable[status]);
689 char *new_status;
690
691 switch (position) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000692 case 1:
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000693 want = new_value_num;
694 want_len = new_value_len;
695 break;
Denis Vlasenko54928842006-09-28 22:35:42 +0000696 case 2:
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000697 flag = new_value_num;
698 flag_len = new_value_len;
699 break;
Denis Vlasenko54928842006-09-28 22:35:42 +0000700 case 3:
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000701 status = new_value_num;
702 status_len = new_value_len;
703 break;
704 default:
Manuel Novoa III cad53642003-03-19 09:13:01 +0000705 bb_error_msg_and_die("DEBUG ONLY: this shouldnt happen");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000706 }
707
Rob Landleyd921b2e2006-08-03 15:41:12 +0000708 new_status = xasprintf("%s %s %s", name_hashtable[want], name_hashtable[flag], name_hashtable[status]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000709 status_hashtable[status_node_num]->status = search_name_hashtable(new_status);
710 free(new_status);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000711}
712
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000713static const char *describe_status(int status_num)
714{
Denis Vlasenkob71c6682007-07-21 15:08:09 +0000715 int status_want, status_state;
Denis Vlasenko57308af2006-09-28 22:34:46 +0000716 if (status_hashtable[status_num] == NULL || status_hashtable[status_num]->status == 0)
Denis Vlasenko15611bb2007-06-12 08:52:02 +0000717 return "is not installed or flagged to be installed";
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000718
719 status_want = get_status(status_num, 1);
720 status_state = get_status(status_num, 3);
721
Denis Vlasenko57308af2006-09-28 22:34:46 +0000722 if (status_state == search_name_hashtable("installed")) {
723 if (status_want == search_name_hashtable("install"))
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000724 return "is installed";
Denis Vlasenko57308af2006-09-28 22:34:46 +0000725 if (status_want == search_name_hashtable("deinstall"))
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000726 return "is marked to be removed";
Denis Vlasenko57308af2006-09-28 22:34:46 +0000727 if (status_want == search_name_hashtable("purge"))
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000728 return "is marked to be purged";
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000729 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000730 if (status_want == search_name_hashtable("unknown"))
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000731 return "is in an indeterminate state";
Denis Vlasenko57308af2006-09-28 22:34:46 +0000732 if (status_want == search_name_hashtable("install"))
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000733 return "is marked to be installed";
734
735 return "is not installed or flagged to be installed";
736}
737
738
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000739static void index_status_file(const char *filename)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000740{
741 FILE *status_file;
742 char *control_buffer;
743 char *status_line;
744 status_node_t *status_node = NULL;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000745 unsigned status_num;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000746
Rob Landleyd921b2e2006-08-03 15:41:12 +0000747 status_file = xfopen(filename, "r");
Denis Vlasenkoabee3d02007-12-26 20:44:45 +0000748 while ((control_buffer = xmalloc_fgetline_str(status_file, "\n\n")) != NULL) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000749 const unsigned package_num = fill_package_struct(control_buffer);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000750 if (package_num != -1) {
751 status_node = xmalloc(sizeof(status_node_t));
752 /* fill_package_struct doesnt handle the status field */
753 status_line = strstr(control_buffer, "Status:");
754 if (status_line != NULL) {
755 status_line += 7;
756 status_line += strspn(status_line, " \n\t");
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +0000757 status_line = xstrndup(status_line, strcspn(status_line, "\n"));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000758 status_node->status = search_name_hashtable(status_line);
759 free(status_line);
760 }
761 status_node->package = package_num;
762 status_num = search_status_hashtable(name_hashtable[package_hashtable[status_node->package]->name]);
763 status_hashtable[status_num] = status_node;
764 }
765 free(control_buffer);
766 }
767 fclose(status_file);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000768}
769
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000770static void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000771{
772 char *name;
773 char *value;
774 int start = 0;
775 while (1) {
776 start += read_package_field(&control_buffer[start], &name, &value);
777 if (name == NULL) {
778 break;
779 }
780 if (strcmp(name, "Status") != 0) {
781 fprintf(new_status_file, "%s: %s\n", name, value);
782 }
783 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000784}
785
786/* This could do with a cleanup */
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000787static void write_status_file(deb_file_t **deb_file)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000788{
Rob Landleyd921b2e2006-08-03 15:41:12 +0000789 FILE *old_status_file = xfopen("/var/lib/dpkg/status", "r");
790 FILE *new_status_file = xfopen("/var/lib/dpkg/status.udeb", "w");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000791 char *package_name;
792 char *status_from_file;
793 char *control_buffer = NULL;
794 char *tmp_string;
795 int status_num;
796 int field_start = 0;
797 int write_flag;
798 int i = 0;
799
800 /* Update previously known packages */
Denis Vlasenkoabee3d02007-12-26 20:44:45 +0000801 while ((control_buffer = xmalloc_fgetline_str(old_status_file, "\n\n")) != NULL) {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000802 tmp_string = strstr(control_buffer, "Package:");
803 if (tmp_string == NULL) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000804 continue;
805 }
806
807 tmp_string += 8;
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000808 tmp_string += strspn(tmp_string, " \n\t");
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +0000809 package_name = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000810 write_flag = FALSE;
811 tmp_string = strstr(control_buffer, "Status:");
812 if (tmp_string != NULL) {
813 /* Seperate the status value from the control buffer */
814 tmp_string += 7;
815 tmp_string += strspn(tmp_string, " \n\t");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000816 status_from_file = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000817 } else {
818 status_from_file = NULL;
819 }
820
821 /* Find this package in the status hashtable */
822 status_num = search_status_hashtable(package_name);
823 if (status_hashtable[status_num] != NULL) {
824 const char *status_from_hashtable = name_hashtable[status_hashtable[status_num]->status];
825 if (strcmp(status_from_file, status_from_hashtable) != 0) {
826 /* New status isnt exactly the same as old status */
827 const int state_status = get_status(status_num, 3);
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000828 if ((strcmp("installed", name_hashtable[state_status]) == 0)
829 || (strcmp("unpacked", name_hashtable[state_status]) == 0)
830 ) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000831 /* We need to add the control file from the package */
832 i = 0;
Denis Vlasenko57308af2006-09-28 22:34:46 +0000833 while (deb_file[i] != NULL) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000834 if (strcmp(package_name, name_hashtable[package_hashtable[deb_file[i]->package]->name]) == 0) {
835 /* Write a status file entry with a modified status */
836 /* remove trailing \n's */
837 write_buffer_no_status(new_status_file, deb_file[i]->control_file);
838 set_status(status_num, "ok", 2);
Denis Vlasenkoa6dbb082006-10-12 19:29:44 +0000839 fprintf(new_status_file, "Status: %s\n\n",
840 name_hashtable[status_hashtable[status_num]->status]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000841 write_flag = TRUE;
842 break;
843 }
844 i++;
845 }
846 /* This is temperary, debugging only */
847 if (deb_file[i] == NULL) {
Denis Vlasenkoa6dbb082006-10-12 19:29:44 +0000848 bb_error_msg_and_die("ALERT: cannot find a control file, "
849 "your status file may be broken, status may be "
850 "incorrect for %s", package_name);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000851 }
852 }
853 else if (strcmp("not-installed", name_hashtable[state_status]) == 0) {
854 /* Only write the Package, Status, Priority and Section lines */
855 fprintf(new_status_file, "Package: %s\n", package_name);
856 fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
857
858 while (1) {
859 char *field_name;
860 char *field_value;
861 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
862 if (field_name == NULL) {
863 break;
864 }
865 if ((strcmp(field_name, "Priority") == 0) ||
866 (strcmp(field_name, "Section") == 0)) {
867 fprintf(new_status_file, "%s: %s\n", field_name, field_value);
868 }
869 }
870 write_flag = TRUE;
871 fputs("\n", new_status_file);
872 }
873 else if (strcmp("config-files", name_hashtable[state_status]) == 0) {
874 /* only change the status line */
875 while (1) {
876 char *field_name;
877 char *field_value;
878 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
879 if (field_name == NULL) {
880 break;
881 }
882 /* Setup start point for next field */
883 if (strcmp(field_name, "Status") == 0) {
884 fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
885 } else {
886 fprintf(new_status_file, "%s: %s\n", field_name, field_value);
887 }
888 }
889 write_flag = TRUE;
890 fputs("\n", new_status_file);
891 }
892 }
893 }
894 /* If the package from the status file wasnt handle above, do it now*/
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000895 if (!write_flag) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000896 fprintf(new_status_file, "%s\n\n", control_buffer);
897 }
898
Aaron Lehmanna170e1c2002-11-28 11:27:31 +0000899 free(status_from_file);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000900 free(package_name);
901 free(control_buffer);
902 }
903
904 /* Write any new packages */
Denis Vlasenko57308af2006-09-28 22:34:46 +0000905 for (i = 0; deb_file[i] != NULL; i++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000906 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[i]->package]->name]);
907 if (strcmp("reinstreq", name_hashtable[get_status(status_num, 2)]) == 0) {
908 write_buffer_no_status(new_status_file, deb_file[i]->control_file);
909 set_status(status_num, "ok", 2);
910 fprintf(new_status_file, "Status: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
911 }
912 }
913 fclose(old_status_file);
914 fclose(new_status_file);
915
916
Eric Andersenaff114c2004-04-14 17:51:38 +0000917 /* Create a separate backfile to dpkg */
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000918 if (rename("/var/lib/dpkg/status", "/var/lib/dpkg/status.udeb.bak") == -1) {
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000919 struct stat stat_buf;
Bernhard Reutner-Fischerd2c306e2006-05-29 12:10:23 +0000920 xstat("/var/lib/dpkg/status", &stat_buf);
Eric Andersenaff114c2004-04-14 17:51:38 +0000921 /* Its ok if renaming the status file fails because status
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000922 * file doesnt exist, maybe we are starting from scratch */
Denis Vlasenko57308af2006-09-28 22:34:46 +0000923 bb_error_msg("no status file found, creating new one");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000924 }
925
926 if (rename("/var/lib/dpkg/status.udeb", "/var/lib/dpkg/status") == -1) {
Denis Vlasenkoa6dbb082006-10-12 19:29:44 +0000927 bb_error_msg_and_die("DANGER: cannot create status file, "
928 "you need to manually repair your status file");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000929 }
930}
931
Eric Andersenaff114c2004-04-14 17:51:38 +0000932/* This function returns TRUE if the given package can satisfy a
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000933 * dependency of type depend_type.
934 *
Eric Andersenaff114c2004-04-14 17:51:38 +0000935 * A pre-depends is satisfied only if a package is already installed,
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000936 * which a regular depends can be satisfied by a package which we want
937 * to install.
938 */
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000939static int package_satisfies_dependency(int package, int depend_type)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000940{
941 int status_num = search_status_hashtable(name_hashtable[package_hashtable[package]->name]);
942
943 /* status could be unknown if package is a pure virtual
944 * provides which cannot satisfy any dependency by itself.
945 */
Denis Vlasenko57308af2006-09-28 22:34:46 +0000946 if (status_hashtable[status_num] == NULL)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000947 return 0;
948
949 switch (depend_type) {
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000950 case EDGE_PRE_DEPENDS: return get_status(status_num, 3) == search_name_hashtable("installed");
951 case EDGE_DEPENDS: return get_status(status_num, 1) == search_name_hashtable("install");
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000952 }
953 return 0;
954}
955
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000956static int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000957{
958 int *conflicts = NULL;
959 int conflicts_num = 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000960 int i = deb_start;
Glenn L McGratha94a06a2002-05-29 13:45:34 +0000961 int j;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000962
963 /* Check for conflicts
964 * TODO: TEST if conflicts with other packages to be installed
965 *
966 * Add install packages and the packages they provide
967 * to the list of files to check conflicts for
968 */
969
970 /* Create array of package numbers to check against
971 * installed package for conflicts*/
972 while (deb_file[i] != NULL) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000973 const unsigned package_num = deb_file[i]->package;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000974 conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
975 conflicts[conflicts_num] = package_num;
976 conflicts_num++;
977 /* add provides to conflicts list */
978 for (j = 0; j < package_hashtable[package_num]->num_of_edges; j++) {
979 if (package_hashtable[package_num]->edge[j]->type == EDGE_PROVIDES) {
980 const int conflicts_package_num = search_package_hashtable(
981 package_hashtable[package_num]->edge[j]->name,
982 package_hashtable[package_num]->edge[j]->version,
983 package_hashtable[package_num]->edge[j]->operator);
984 if (package_hashtable[conflicts_package_num] == NULL) {
985 /* create a new package */
Denis Vlasenko4cccc032006-12-22 18:37:07 +0000986 common_node_t *new_node = xzalloc(sizeof(common_node_t));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000987 new_node->name = package_hashtable[package_num]->edge[j]->name;
988 new_node->version = package_hashtable[package_num]->edge[j]->version;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000989 package_hashtable[conflicts_package_num] = new_node;
990 }
991 conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
992 conflicts[conflicts_num] = conflicts_package_num;
993 conflicts_num++;
994 }
995 }
996 i++;
997 }
998
999 /* Check conflicts */
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001000 i = 0;
1001 while (deb_file[i] != NULL) {
1002 const common_node_t *package_node = package_hashtable[deb_file[i]->package];
1003 int status_num = 0;
1004 status_num = search_status_hashtable(name_hashtable[package_node->name]);
1005
1006 if (get_status(status_num, 3) == search_name_hashtable("installed")) {
1007 i++;
1008 continue;
1009 }
1010
1011 for (j = 0; j < package_node->num_of_edges; j++) {
1012 const edge_t *package_edge = package_node->edge[j];
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001013
1014 if (package_edge->type == EDGE_CONFLICTS) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001015 const unsigned package_num =
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001016 search_package_hashtable(package_edge->name,
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001017 package_edge->version,
1018 package_edge->operator);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001019 int result = 0;
1020 if (package_hashtable[package_num] != NULL) {
1021 status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001022
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001023 if (get_status(status_num, 1) == search_name_hashtable("install")) {
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001024 result = test_version(package_hashtable[deb_file[i]->package]->version,
1025 package_edge->version, package_edge->operator);
1026 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001027 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001028
1029 if (result) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001030 bb_error_msg_and_die("package %s conflicts with %s",
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001031 name_hashtable[package_node->name],
1032 name_hashtable[package_edge->name]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001033 }
1034 }
1035 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001036 i++;
Tim Rikerc1ef7bd2006-01-25 00:08:53 +00001037 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001038
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001039
1040 /* Check dependendcies */
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001041 for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001042 int status_num = 0;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001043 int number_of_alternatives = 0;
Eric Andersenaff114c2004-04-14 17:51:38 +00001044 const edge_t * root_of_alternatives = NULL;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001045 const common_node_t *package_node = package_hashtable[i];
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001046
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001047 /* If the package node does not exist then this
1048 * package is a virtual one. In which case there are
1049 * no dependencies to check.
1050 */
Denis Vlasenko57308af2006-09-28 22:34:46 +00001051 if (package_node == NULL) continue;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001052
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001053 status_num = search_status_hashtable(name_hashtable[package_node->name]);
1054
1055 /* If there is no status then this package is a
1056 * virtual one provided by something else. In which
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001057 * case there are no dependencies to check.
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001058 */
Denis Vlasenko57308af2006-09-28 22:34:46 +00001059 if (status_hashtable[status_num] == NULL) continue;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001060
1061 /* If we don't want this package installed then we may
1062 * as well ignore it's dependencies.
1063 */
1064 if (get_status(status_num, 1) != search_name_hashtable("install")) {
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001065 continue;
1066 }
1067
Eric Andersenaff114c2004-04-14 17:51:38 +00001068 /* This code is tested only for EDGE_DEPENDS, since I
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001069 * have no suitable pre-depends available. There is no
1070 * reason that it shouldn't work though :-)
1071 */
1072 for (j = 0; j < package_node->num_of_edges; j++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001073 const edge_t *package_edge = package_node->edge[j];
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001074 unsigned package_num;
Tim Rikerc1ef7bd2006-01-25 00:08:53 +00001075
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001076 if (package_edge->type == EDGE_OR_PRE_DEPENDS
1077 || package_edge->type == EDGE_OR_DEPENDS
1078 ) { /* start an EDGE_OR_ list */
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001079 number_of_alternatives = package_edge->version;
1080 root_of_alternatives = package_edge;
1081 continue;
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001082 }
1083 if (number_of_alternatives == 0) { /* not in the middle of an EDGE_OR_ list */
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001084 number_of_alternatives = 1;
1085 root_of_alternatives = NULL;
1086 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001087
Glenn L McGrath1dbbd2f2001-12-05 04:10:14 +00001088 package_num = search_package_hashtable(package_edge->name, package_edge->version, package_edge->operator);
Glenn L McGrath1dbbd2f2001-12-05 04:10:14 +00001089
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001090 if (package_edge->type == EDGE_PRE_DEPENDS ||
Denis Vlasenko57308af2006-09-28 22:34:46 +00001091 package_edge->type == EDGE_DEPENDS) {
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001092 int result=1;
1093 status_num = 0;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001094
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001095 /* If we are inside an alternative then check
1096 * this edge is the right type.
1097 *
1098 * EDGE_DEPENDS == OR_DEPENDS -1
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001099 * EDGE_PRE_DEPENDS == OR_PRE_DEPENDS -1
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001100 */
Denis Vlasenko57308af2006-09-28 22:34:46 +00001101 if (root_of_alternatives && package_edge->type != root_of_alternatives->type - 1)
1102 bb_error_msg_and_die("fatal error, package dependencies corrupt: %d != %d - 1",
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001103 package_edge->type, root_of_alternatives->type);
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001104
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001105 if (package_hashtable[package_num] != NULL)
1106 result = !package_satisfies_dependency(package_num, package_edge->type);
1107
1108 if (result) { /* check for other package which provide what we are looking for */
1109 int provider = -1;
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001110
Denis Vlasenko57308af2006-09-28 22:34:46 +00001111 while ((provider = search_for_provides(package_edge->name, provider)) > -1) {
1112 if (package_hashtable[provider] == NULL) {
1113 puts("Have a provider but no package information for it");
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001114 continue;
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001115 }
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001116 result = !package_satisfies_dependency(provider, package_edge->type);
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001117
Denis Vlasenko57308af2006-09-28 22:34:46 +00001118 if (result == 0)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001119 break;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001120 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001121 }
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001122
1123 /* It must be already installed, or to be installed */
1124 number_of_alternatives--;
1125 if (result && number_of_alternatives == 0) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001126 if (root_of_alternatives)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001127 bb_error_msg_and_die(
Denis Vlasenko57308af2006-09-28 22:34:46 +00001128 "package %s %sdepends on %s, "
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001129 "which cannot be satisfied",
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001130 name_hashtable[package_node->name],
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001131 package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1132 name_hashtable[root_of_alternatives->name]);
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001133 bb_error_msg_and_die(
1134 "package %s %sdepends on %s, which %s\n",
1135 name_hashtable[package_node->name],
1136 package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1137 name_hashtable[package_edge->name],
1138 describe_status(status_num));
1139 }
1140 if (result == 0 && number_of_alternatives) {
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001141 /* we've found a package which
1142 * satisfies the dependency,
1143 * so skip over the rest of
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001144 * the alternatives.
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001145 */
1146 j += number_of_alternatives;
1147 number_of_alternatives = 0;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001148 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001149 }
1150 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001151 }
1152 free(conflicts);
Denis Vlasenko54928842006-09-28 22:35:42 +00001153 return TRUE;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001154}
1155
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001156static char **create_list(const char *filename)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001157{
1158 FILE *list_stream;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001159 char **file_list = NULL;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001160 char *line = NULL;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001161 int count = 0;
1162
Eric Andersenaff114c2004-04-14 17:51:38 +00001163 /* don't use [xw]fopen here, handle error ourself */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001164 list_stream = fopen(filename, "r");
1165 if (list_stream == NULL) {
Denis Vlasenko54928842006-09-28 22:35:42 +00001166 return NULL;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001167 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001168
Denis Vlasenko2d5ca602006-10-12 22:43:20 +00001169 while ((line = xmalloc_getline(list_stream)) != NULL) {
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001170 file_list = xrealloc(file_list, sizeof(char *) * (count + 2));
Glenn L McGrathb3231622002-12-11 03:10:13 +00001171 file_list[count] = line;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001172 count++;
1173 }
1174 fclose(list_stream);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001175
1176 if (count == 0) {
Denis Vlasenko54928842006-09-28 22:35:42 +00001177 return NULL;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001178 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001179 file_list[count] = NULL;
1180 return file_list;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001181}
1182
1183/* maybe i should try and hook this into remove_file.c somehow */
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001184static int remove_file_array(char **remove_names, char **exclude_names)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001185{
1186 struct stat path_stat;
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001187 int remove_flag = 1; /* not removed anything yet */
1188 int i, j;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001189
1190 if (remove_names == NULL) {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001191 return 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001192 }
1193 for (i = 0; remove_names[i] != NULL; i++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001194 if (exclude_names != NULL) {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001195 for (j = 0; exclude_names[j] != NULL; j++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001196 if (strcmp(remove_names[i], exclude_names[j]) == 0) {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001197 goto skip;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001198 }
1199 }
1200 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001201 /* TODO: why we are checking lstat? we can just try rm/rmdir */
1202 if (lstat(remove_names[i], &path_stat) < 0) {
1203 continue;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001204 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001205 if (S_ISDIR(path_stat.st_mode)) {
1206 remove_flag &= rmdir(remove_names[i]); /* 0 if no error */
1207 } else {
1208 remove_flag &= unlink(remove_names[i]); /* 0 if no error */
1209 }
1210 skip:
1211 continue;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001212 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001213 return (remove_flag == 0);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001214}
1215
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001216static int run_package_script(const char *package_name, const char *script_type)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001217{
1218 struct stat path_stat;
1219 char *script_path;
1220 int result;
1221
Rob Landleyd921b2e2006-08-03 15:41:12 +00001222 script_path = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, script_type);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001223
1224 /* If the file doesnt exist is isnt a fatal */
Rob Landley1ec5b292006-05-29 07:42:02 +00001225 result = lstat(script_path, &path_stat) < 0 ? EXIT_SUCCESS : system(script_path);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001226 free(script_path);
Denis Vlasenko54928842006-09-28 22:35:42 +00001227 return result;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001228}
1229
Denis Vlasenko6ca409e2007-08-12 20:58:27 +00001230static const char *const all_control_files[] = {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001231 "preinst", "postinst", "prerm", "postrm",
1232 "list", "md5sums", "shlibs", "conffiles",
1233 "config", "templates", NULL
1234};
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001235
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001236static char **all_control_list(const char *package_name)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001237{
Denis Vlasenko54928842006-09-28 22:35:42 +00001238 unsigned i = 0;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001239 char **remove_files;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001240
1241 /* Create a list of all /var/lib/dpkg/info/<package> files */
Rob Landley1ec5b292006-05-29 07:42:02 +00001242 remove_files = xzalloc(sizeof(all_control_files));
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001243 while (all_control_files[i]) {
Rob Landleyd921b2e2006-08-03 15:41:12 +00001244 remove_files[i] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, all_control_files[i]);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001245 i++;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001246 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001247
Denis Vlasenko54928842006-09-28 22:35:42 +00001248 return remove_files;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001249}
1250
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001251static void free_array(char **array)
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001252{
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001253 if (array) {
Denis Vlasenko54928842006-09-28 22:35:42 +00001254 unsigned i = 0;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001255 while (array[i]) {
1256 free(array[i]);
1257 i++;
1258 }
1259 free(array);
1260 }
1261}
Glenn L McGrathe7386612001-09-21 04:30:51 +00001262
1263/* This function lists information on the installed packages. It loops through
1264 * the status_hashtable to retrieve the info. This results in smaller code than
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001265 * scanning the status file. The resulting list, however, is unsorted.
Glenn L McGrathe7386612001-09-21 04:30:51 +00001266 */
Mike Frysinger4e5936e2005-04-16 04:30:38 +00001267static void list_packages(void)
Glenn L McGrathe7386612001-09-21 04:30:51 +00001268{
Tim Rikerc1ef7bd2006-01-25 00:08:53 +00001269 int i;
Glenn L McGrathe7386612001-09-21 04:30:51 +00001270
Denis Vlasenko57308af2006-09-28 22:34:46 +00001271 puts(" Name Version");
1272 puts("+++-==============-==============");
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001273
Glenn L McGrathe7386612001-09-21 04:30:51 +00001274 /* go through status hash, dereference package hash and finally strings */
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001275 for (i = 0; i < STATUS_HASH_PRIME+1; i++) {
Denis Vlasenko9213a9e2006-09-17 16:28:10 +00001276 if (status_hashtable[i]) {
1277 const char *stat_str; /* status string */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001278 const char *name_str; /* package name */
1279 const char *vers_str; /* version */
1280 char s1, s2; /* status abbreviations */
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001281 int spccnt; /* space count */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001282 int j;
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001283
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001284 stat_str = name_hashtable[status_hashtable[i]->status];
1285 name_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->name];
1286 vers_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->version];
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001287
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001288 /* get abbreviation for status field 1 */
1289 s1 = stat_str[0] == 'i' ? 'i' : 'r';
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001290
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001291 /* get abbreviation for status field 2 */
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001292 for (j = 0, spccnt = 0; stat_str[j] && spccnt < 2; j++) {
Denis Vlasenko9213a9e2006-09-17 16:28:10 +00001293 if (stat_str[j] == ' ') spccnt++;
Glenn L McGrathe7386612001-09-21 04:30:51 +00001294 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001295 s2 = stat_str[j];
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001296
Glenn L McGrathe7386612001-09-21 04:30:51 +00001297 /* print out the line formatted like Debian dpkg */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001298 printf("%c%c %-14s %s\n", s1, s2, name_str, vers_str);
Glenn L McGrathe7386612001-09-21 04:30:51 +00001299 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001300 }
Glenn L McGrathe7386612001-09-21 04:30:51 +00001301}
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001302
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001303static void remove_package(const unsigned package_num, int noisy)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001304{
1305 const char *package_name = name_hashtable[package_hashtable[package_num]->name];
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001306 const char *package_version = name_hashtable[package_hashtable[package_num]->version];
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001307 const unsigned status_num = search_status_hashtable(package_name);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001308 const int package_name_length = strlen(package_name);
1309 char **remove_files;
1310 char **exclude_files;
1311 char list_name[package_name_length + 25];
1312 char conffile_name[package_name_length + 30];
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001313
Denis Vlasenko57308af2006-09-28 22:34:46 +00001314 if (noisy)
1315 printf("Removing %s (%s)...\n", package_name, package_version);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001316
1317 /* run prerm script */
Denis Vlasenko53f83d62007-03-29 19:42:19 +00001318 if (run_package_script(package_name, "prerm") != 0) {
Manuel Novoa III cad53642003-03-19 09:13:01 +00001319 bb_error_msg_and_die("script failed, prerm failure");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001320 }
1321
Eric Andersenaff114c2004-04-14 17:51:38 +00001322 /* Create a list of files to remove, and a separate list of those to keep */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001323 sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
1324 remove_files = create_list(list_name);
1325
1326 sprintf(conffile_name, "/var/lib/dpkg/info/%s.conffiles", package_name);
1327 exclude_files = create_list(conffile_name);
1328
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +00001329 /* Some directories can't be removed straight away, so do multiple passes */
1330 while (remove_file_array(remove_files, exclude_files)) /*repeat */;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001331 free_array(exclude_files);
1332 free_array(remove_files);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001333
1334 /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep */
Rob Landley1ec5b292006-05-29 07:42:02 +00001335 exclude_files = xzalloc(sizeof(char*) * 3);
Rob Landleyd921b2e2006-08-03 15:41:12 +00001336 exclude_files[0] = xstrdup(conffile_name);
1337 exclude_files[1] = xasprintf("/var/lib/dpkg/info/%s.postrm", package_name);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001338
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001339 /* Create a list of all /var/lib/dpkg/info/<package> files */
1340 remove_files = all_control_list(package_name);
1341
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001342 remove_file_array(remove_files, exclude_files);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001343 free_array(remove_files);
1344 free_array(exclude_files);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001345
1346 /* rename <package>.conffile to <package>.list */
1347 rename(conffile_name, list_name);
1348
1349 /* Change package status */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001350 set_status(status_num, "config-files", 3);
1351}
1352
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001353static void purge_package(const unsigned package_num)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001354{
1355 const char *package_name = name_hashtable[package_hashtable[package_num]->name];
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001356 const char *package_version = name_hashtable[package_hashtable[package_num]->version];
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001357 const unsigned status_num = search_status_hashtable(package_name);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001358 char **remove_files;
1359 char **exclude_files;
1360 char list_name[strlen(package_name) + 25];
1361
Denis Vlasenko57308af2006-09-28 22:34:46 +00001362 printf("Purging %s (%s)...\n", package_name, package_version);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001363
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001364 /* run prerm script */
1365 if (run_package_script(package_name, "prerm") != 0) {
Manuel Novoa III cad53642003-03-19 09:13:01 +00001366 bb_error_msg_and_die("script failed, prerm failure");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001367 }
1368
1369 /* Create a list of files to remove */
1370 sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
1371 remove_files = create_list(list_name);
1372
Rob Landley1ec5b292006-05-29 07:42:02 +00001373 exclude_files = xzalloc(sizeof(char*));
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001374
1375 /* Some directories cant be removed straight away, so do multiple passes */
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +00001376 while (remove_file_array(remove_files, exclude_files)) /* repeat */;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001377 free_array(remove_files);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001378
1379 /* Create a list of all /var/lib/dpkg/info/<package> files */
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001380 remove_files = all_control_list(package_name);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001381 remove_file_array(remove_files, exclude_files);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001382 free_array(remove_files);
1383 free(exclude_files);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001384
1385 /* run postrm script */
Denis Vlasenko53f83d62007-03-29 19:42:19 +00001386 if (run_package_script(package_name, "postrm") != 0) {
1387 bb_error_msg_and_die("postrm failure.. set status to what?");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001388 }
1389
1390 /* Change package status */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001391 set_status(status_num, "not-installed", 3);
1392}
1393
Glenn L McGrath747381c2002-11-06 22:54:41 +00001394static archive_handle_t *init_archive_deb_ar(const char *filename)
Glenn L McGrath61b79042002-10-19 10:40:55 +00001395{
Glenn L McGrath747381c2002-11-06 22:54:41 +00001396 archive_handle_t *ar_handle;
Glenn L McGrath61b79042002-10-19 10:40:55 +00001397
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001398 /* Setup an ar archive handle that refers to the gzip sub archive */
Glenn L McGrath747381c2002-11-06 22:54:41 +00001399 ar_handle = init_handle();
1400 ar_handle->filter = filter_accept_list_reassign;
Rob Landleyd921b2e2006-08-03 15:41:12 +00001401 ar_handle->src_fd = xopen(filename, O_RDONLY);
Glenn L McGrath61b79042002-10-19 10:40:55 +00001402
Denis Vlasenko54928842006-09-28 22:35:42 +00001403 return ar_handle;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001404}
Glenn L McGrath61b79042002-10-19 10:40:55 +00001405
Glenn L McGrath747381c2002-11-06 22:54:41 +00001406static void init_archive_deb_control(archive_handle_t *ar_handle)
1407{
1408 archive_handle_t *tar_handle;
1409
1410 /* Setup the tar archive handle */
1411 tar_handle = init_handle();
Glenn L McGrath747381c2002-11-06 22:54:41 +00001412 tar_handle->src_fd = ar_handle->src_fd;
1413
Eric Andersenaff114c2004-04-14 17:51:38 +00001414 /* We don't care about data.tar.* or debian-binary, just control.tar.* */
Denis Vlasenkodbe6e662007-08-14 16:43:01 +00001415#if ENABLE_FEATURE_DEB_TAR_GZ
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001416 llist_add_to(&(ar_handle->accept), (char*)"control.tar.gz");
Glenn L McGrath747381c2002-11-06 22:54:41 +00001417#endif
Denis Vlasenkodbe6e662007-08-14 16:43:01 +00001418#if ENABLE_FEATURE_DEB_TAR_BZ2
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001419 llist_add_to(&(ar_handle->accept), (char*)"control.tar.bz2");
Glenn L McGrath747381c2002-11-06 22:54:41 +00001420#endif
1421
1422 /* Assign the tar handle as a subarchive of the ar handle */
1423 ar_handle->sub_archive = tar_handle;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001424}
1425
1426static void init_archive_deb_data(archive_handle_t *ar_handle)
1427{
1428 archive_handle_t *tar_handle;
1429
1430 /* Setup the tar archive handle */
1431 tar_handle = init_handle();
Glenn L McGrath747381c2002-11-06 22:54:41 +00001432 tar_handle->src_fd = ar_handle->src_fd;
1433
Eric Andersenaff114c2004-04-14 17:51:38 +00001434 /* We don't care about control.tar.* or debian-binary, just data.tar.* */
Denis Vlasenkodbe6e662007-08-14 16:43:01 +00001435#if ENABLE_FEATURE_DEB_TAR_GZ
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001436 llist_add_to(&(ar_handle->accept), (char*)"data.tar.gz");
Glenn L McGrath747381c2002-11-06 22:54:41 +00001437#endif
Denis Vlasenkodbe6e662007-08-14 16:43:01 +00001438#if ENABLE_FEATURE_DEB_TAR_BZ2
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001439 llist_add_to(&(ar_handle->accept), (char*)"data.tar.bz2");
Glenn L McGrath747381c2002-11-06 22:54:41 +00001440#endif
1441
1442 /* Assign the tar handle as a subarchive of the ar handle */
1443 ar_handle->sub_archive = tar_handle;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001444}
1445
Eric Andersen1393a392003-09-15 08:06:15 +00001446static char *deb_extract_control_file_to_buffer(archive_handle_t *ar_handle, llist_t *myaccept)
Glenn L McGrath747381c2002-11-06 22:54:41 +00001447{
1448 ar_handle->sub_archive->action_data = data_extract_to_buffer;
Eric Andersen1393a392003-09-15 08:06:15 +00001449 ar_handle->sub_archive->accept = myaccept;
Paul Fox37dd6242005-07-22 13:17:41 +00001450 ar_handle->sub_archive->filter = filter_accept_list;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001451
1452 unpack_ar_archive(ar_handle);
1453 close(ar_handle->src_fd);
1454
Denis Vlasenko54928842006-09-28 22:35:42 +00001455 return ar_handle->sub_archive->buffer;
Glenn L McGrath61b79042002-10-19 10:40:55 +00001456}
1457
Glenn L McGrath6ab32eb2002-11-03 11:57:10 +00001458static void data_extract_all_prefix(archive_handle_t *archive_handle)
1459{
1460 char *name_ptr = archive_handle->file_header->name;
1461
1462 name_ptr += strspn(name_ptr, "./");
1463 if (name_ptr[0] != '\0') {
Rob Landleyd921b2e2006-08-03 15:41:12 +00001464 archive_handle->file_header->name = xasprintf("%s%s", archive_handle->buffer, name_ptr);
Glenn L McGrath6ab32eb2002-11-03 11:57:10 +00001465 data_extract_all(archive_handle);
1466 }
Glenn L McGrath6ab32eb2002-11-03 11:57:10 +00001467}
1468
1469static void unpack_package(deb_file_t *deb_file)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001470{
1471 const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001472 const unsigned status_num = search_status_hashtable(package_name);
1473 const unsigned status_package_num = status_hashtable[status_num]->package;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001474 char *info_prefix;
Denis Vlasenko1da6a212006-09-03 16:33:58 +00001475 char *list_filename;
Glenn L McGrath61b79042002-10-19 10:40:55 +00001476 archive_handle_t *archive_handle;
1477 FILE *out_stream;
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001478 llist_t *accept_list = NULL;
1479 int i = 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001480
1481 /* If existing version, remove it first */
1482 if (strcmp(name_hashtable[get_status(status_num, 3)], "installed") == 0) {
1483 /* Package is already installed, remove old version first */
Denis Vlasenko57308af2006-09-28 22:34:46 +00001484 printf("Preparing to replace %s %s (using %s)...\n", package_name,
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001485 name_hashtable[package_hashtable[status_package_num]->version],
1486 deb_file->filename);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001487 remove_package(status_package_num, 0);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001488 } else {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001489 printf("Unpacking %s (from %s)...\n", package_name, deb_file->filename);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001490 }
1491
1492 /* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */
Rob Landleyd921b2e2006-08-03 15:41:12 +00001493 info_prefix = xasprintf("/var/lib/dpkg/info/%s.", package_name);
Glenn L McGrath747381c2002-11-06 22:54:41 +00001494 archive_handle = init_archive_deb_ar(deb_file->filename);
1495 init_archive_deb_control(archive_handle);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001496
Denis Vlasenko57308af2006-09-28 22:34:46 +00001497 while (all_control_files[i]) {
Rob Landleyd921b2e2006-08-03 15:41:12 +00001498 char *c = xasprintf("./%s", all_control_files[i]);
Rob Landley8bb50782006-05-26 23:44:51 +00001499 llist_add_to(&accept_list, c);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001500 i++;
1501 }
1502 archive_handle->sub_archive->accept = accept_list;
1503 archive_handle->sub_archive->filter = filter_accept_list;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001504 archive_handle->sub_archive->action_data = data_extract_all_prefix;
1505 archive_handle->sub_archive->buffer = info_prefix;
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001506 archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001507 unpack_ar_archive(archive_handle);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001508
1509 /* Run the preinst prior to extracting */
1510 if (run_package_script(package_name, "preinst") != 0) {
1511 /* when preinst returns exit code != 0 then quit installation process */
Denis Vlasenko57308af2006-09-28 22:34:46 +00001512 bb_error_msg_and_die("subprocess pre-installation script returned error");
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001513 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001514
1515 /* Extract data.tar.gz to the root directory */
Glenn L McGrath747381c2002-11-06 22:54:41 +00001516 archive_handle = init_archive_deb_ar(deb_file->filename);
1517 init_archive_deb_data(archive_handle);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001518 archive_handle->sub_archive->action_data = data_extract_all_prefix;
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001519 archive_handle->sub_archive->buffer = (char*)"/"; /* huh? */
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001520 archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001521 unpack_ar_archive(archive_handle);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001522
1523 /* Create the list file */
Rob Landley02496aa2006-09-05 13:48:21 +00001524 list_filename = xasprintf("/var/lib/dpkg/info/%s.list", package_name);
1525 out_stream = xfopen(list_filename, "w");
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001526 while (archive_handle->sub_archive->passed) {
1527 /* the leading . has been stripped by data_extract_all_prefix already */
1528 fputs(archive_handle->sub_archive->passed->data, out_stream);
Glenn L McGrath61b79042002-10-19 10:40:55 +00001529 fputc('\n', out_stream);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001530 archive_handle->sub_archive->passed = archive_handle->sub_archive->passed->link;
Glenn L McGrath61b79042002-10-19 10:40:55 +00001531 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001532 fclose(out_stream);
1533
1534 /* change status */
1535 set_status(status_num, "install", 1);
1536 set_status(status_num, "unpacked", 3);
1537
1538 free(info_prefix);
Denis Vlasenko1da6a212006-09-03 16:33:58 +00001539 free(list_filename);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001540}
1541
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001542static void configure_package(deb_file_t *deb_file)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001543{
1544 const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
1545 const char *package_version = name_hashtable[package_hashtable[deb_file->package]->version];
1546 const int status_num = search_status_hashtable(package_name);
1547
Denis Vlasenko57308af2006-09-28 22:34:46 +00001548 printf("Setting up %s (%s)...\n", package_name, package_version);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001549
1550 /* Run the postinst script */
1551 if (run_package_script(package_name, "postinst") != 0) {
1552 /* TODO: handle failure gracefully */
Bernhard Reutner-Fischerfa5f2072007-06-05 17:07:01 +00001553 bb_error_msg_and_die("postinst failure.. set status to what?");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001554 }
1555 /* Change status to reflect success */
1556 set_status(status_num, "install", 1);
1557 set_status(status_num, "installed", 3);
1558}
Glenn L McGrathc9005752001-02-10 02:05:24 +00001559
Denis Vlasenko9b49a5e2007-10-11 10:05:36 +00001560int dpkg_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001561int dpkg_main(int argc, char **argv)
Glenn L McGrathc9005752001-02-10 02:05:24 +00001562{
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001563 deb_file_t **deb_file = NULL;
1564 status_node_t *status_node;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001565 char *str_f;
Matt Kraaiefd7f032001-11-19 21:07:15 +00001566 int opt;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001567 int package_num;
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001568 int deb_count = 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001569 int state_status;
1570 int status_num;
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001571 int i;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001572 enum {
1573 OPT_configure = 0x1,
1574 OPT_force_ignore_depends = 0x2,
1575 OPT_install = 0x4,
1576 OPT_list_installed = 0x8,
1577 OPT_purge = 0x10,
1578 OPT_remove = 0x20,
1579 OPT_unpack = 0x40,
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001580 };
1581
Denis Vlasenkofe7cd642007-08-18 15:32:12 +00001582 opt = getopt32(argv, "CF:ilPru", &str_f);
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001583 //if (opt & OPT_configure) ... // -C
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001584 if (opt & OPT_force_ignore_depends) { // -F (--force in official dpkg)
1585 if (strcmp(str_f, "depends"))
1586 opt &= ~OPT_force_ignore_depends;
1587 }
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001588 //if (opt & OPT_install) ... // -i
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001589 //if (opt & OPT_list_installed) ... // -l
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001590 //if (opt & OPT_purge) ... // -P
1591 //if (opt & OPT_remove) ... // -r
1592 //if (opt & OPT_unpack) ... // -u (--unpack in official dpkg)
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001593 argc -= optind;
1594 argv += optind;
1595 /* check for non-option argument if expected */
1596 if (!opt || (!argc && !(opt && OPT_list_installed)))
1597 bb_show_usage();
Glenn L McGrath0e757a22001-04-08 05:27:18 +00001598
Denis Vlasenko57308af2006-09-28 22:34:46 +00001599 name_hashtable = xzalloc(sizeof(name_hashtable[0]) * (NAME_HASH_PRIME + 1));
1600 package_hashtable = xzalloc(sizeof(package_hashtable[0]) * (PACKAGE_HASH_PRIME + 1));
1601 status_hashtable = xzalloc(sizeof(status_hashtable[0]) * (STATUS_HASH_PRIME + 1));
1602
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001603/* puts("(Reading database ... xxxxx files and directories installed.)"); */
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001604 index_status_file("/var/lib/dpkg/status");
1605
Glenn L McGrathe7386612001-09-21 04:30:51 +00001606 /* if the list action was given print the installed packages and exit */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001607 if (opt & OPT_list_installed) {
Glenn L McGrathe7386612001-09-21 04:30:51 +00001608 list_packages();
Denis Vlasenko54928842006-09-28 22:35:42 +00001609 return EXIT_SUCCESS;
Glenn L McGrathe7386612001-09-21 04:30:51 +00001610 }
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001611
Glenn L McGrath0d2fb762001-10-25 14:26:05 +00001612 /* Read arguments and store relevant info in structs */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001613 while (*argv) {
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001614 /* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001615 deb_file = xrealloc(deb_file, sizeof(deb_file[0]) * (deb_count + 2));
1616 deb_file[deb_count] = xzalloc(sizeof(deb_file[0][0]));
1617 if (opt & (OPT_install | OPT_unpack)) {
1618 /* -i/-u: require filename */
Glenn L McGrath61b79042002-10-19 10:40:55 +00001619 archive_handle_t *archive_handle;
Glenn L McGrath66125c82002-12-08 00:54:33 +00001620 llist_t *control_list = NULL;
Glenn L McGrathd8d11912002-11-05 13:56:04 +00001621
Glenn L McGrath747381c2002-11-06 22:54:41 +00001622 /* Extract the control file */
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001623 llist_add_to(&control_list, (char*)"./control");
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001624 archive_handle = init_archive_deb_ar(argv[0]);
Glenn L McGrath747381c2002-11-06 22:54:41 +00001625 init_archive_deb_control(archive_handle);
1626 deb_file[deb_count]->control_file = deb_extract_control_file_to_buffer(archive_handle, control_list);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001627 if (deb_file[deb_count]->control_file == NULL) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001628 bb_error_msg_and_die("cannot extract control file");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001629 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001630 deb_file[deb_count]->filename = xstrdup(argv[0]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001631 package_num = fill_package_struct(deb_file[deb_count]->control_file);
Glenn L McGrath0d2fb762001-10-25 14:26:05 +00001632
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001633 if (package_num == -1) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001634 bb_error_msg("invalid control file in %s", argv[0]);
1635 argv++;
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001636 continue;
1637 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001638 deb_file[deb_count]->package = (unsigned) package_num;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001639
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001640 /* Add the package to the status hashtable */
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001641 if (opt & (OPT_unpack | OPT_install)) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001642 /* Try and find a currently installed version of this package */
1643 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
1644 /* If no previous entry was found initialise a new entry */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001645 if (status_hashtable[status_num] == NULL
1646 || status_hashtable[status_num]->status == 0
1647 ) {
Denis Vlasenkob95636c2006-12-19 23:36:04 +00001648 status_node = xmalloc(sizeof(status_node_t));
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001649 status_node->package = deb_file[deb_count]->package;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001650 /* reinstreq isnt changed to "ok" until the package control info
1651 * is written to the status file*/
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001652 status_node->status = search_name_hashtable("install reinstreq not-installed");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001653 status_hashtable[status_num] = status_node;
1654 } else {
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001655 set_status(status_num, "install", 1);
1656 set_status(status_num, "reinstreq", 2);
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001657 }
1658 }
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001659 } else if (opt & (OPT_configure | OPT_purge | OPT_remove)) {
1660 /* -C/-p/-r: require package name */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001661 deb_file[deb_count]->package = search_package_hashtable(
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001662 search_name_hashtable(argv[0]),
1663 search_name_hashtable("ANY"), VER_ANY);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001664 if (package_hashtable[deb_file[deb_count]->package] == NULL) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001665 bb_error_msg_and_die("package %s is uninstalled or unknown", argv[0]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001666 }
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001667 package_num = deb_file[deb_count]->package;
1668 status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
1669 state_status = get_status(status_num, 3);
Glenn L McGrath0d2fb762001-10-25 14:26:05 +00001670
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001671 /* check package status is "installed" */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001672 if (opt & OPT_remove) {
1673 if (strcmp(name_hashtable[state_status], "not-installed") == 0
1674 || strcmp(name_hashtable[state_status], "config-files") == 0
1675 ) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001676 bb_error_msg_and_die("%s is already removed", name_hashtable[package_hashtable[package_num]->name]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001677 }
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001678 set_status(status_num, "deinstall", 1);
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001679 } else if (opt & OPT_purge) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001680 /* if package status is "conf-files" then its ok */
1681 if (strcmp(name_hashtable[state_status], "not-installed") == 0) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001682 bb_error_msg_and_die("%s is already purged", name_hashtable[package_hashtable[package_num]->name]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001683 }
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001684 set_status(status_num, "purge", 1);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001685 }
1686 }
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001687 deb_count++;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001688 argv++;
Glenn L McGrath0e757a22001-04-08 05:27:18 +00001689 }
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001690 if (!deb_count)
1691 bb_error_msg_and_die("no package files specified");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001692 deb_file[deb_count] = NULL;
Glenn L McGrath0e757a22001-04-08 05:27:18 +00001693
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001694 /* Check that the deb file arguments are installable */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001695 if (!(opt & OPT_force_ignore_depends)) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001696 if (!check_deps(deb_file, 0, deb_count)) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001697 bb_error_msg_and_die("dependency check failed");
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001698 }
Glenn L McGrath0d2fb762001-10-25 14:26:05 +00001699 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001700
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001701 /* TODO: install or remove packages in the correct dependency order */
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001702 for (i = 0; i < deb_count; i++) {
1703 /* Remove or purge packages */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001704 if (opt & OPT_remove) {
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001705 remove_package(deb_file[i]->package, 1);
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001706 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001707 else if (opt & OPT_purge) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001708 purge_package(deb_file[i]->package);
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001709 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001710 else if (opt & OPT_unpack) {
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001711 unpack_package(deb_file[i]);
1712 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001713 else if (opt & OPT_install) {
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001714 unpack_package(deb_file[i]);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001715 /* package is configured in second pass below */
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001716 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001717 else if (opt & OPT_configure) {
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001718 configure_package(deb_file[i]);
1719 }
1720 }
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001721 /* configure installed packages */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001722 if (opt & OPT_install) {
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001723 for (i = 0; i < deb_count; i++)
1724 configure_package(deb_file[i]);
1725 }
Glenn L McGrathc3fbec72001-07-18 15:47:21 +00001726
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001727 write_status_file(deb_file);
1728
Denis Vlasenko57308af2006-09-28 22:34:46 +00001729 if (ENABLE_FEATURE_CLEAN_UP) {
1730 for (i = 0; i < deb_count; i++) {
1731 free(deb_file[i]->control_file);
1732 free(deb_file[i]->filename);
1733 free(deb_file[i]);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001734 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001735
Denis Vlasenko57308af2006-09-28 22:34:46 +00001736 free(deb_file);
1737
1738 for (i = 0; i < NAME_HASH_PRIME; i++) {
1739 free(name_hashtable[i]);
1740 }
1741
1742 for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
Denis Vlasenko88a2aa92007-03-19 21:48:56 +00001743 free_package(package_hashtable[i]);
Denis Vlasenko57308af2006-09-28 22:34:46 +00001744 }
1745
1746 for (i = 0; i < STATUS_HASH_PRIME; i++) {
1747 free(status_hashtable[i]);
1748 }
1749
1750 free(status_hashtable);
1751 free(package_hashtable);
1752 free(name_hashtable);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001753 }
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001754
Denis Vlasenko54928842006-09-28 22:35:42 +00001755 return EXIT_SUCCESS;
Eric Andersen67991cf2001-02-14 21:23:06 +00001756}