blob: 451c6fa322e7f5a07afe65e2549bd19cfe194115 [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 *
Denis Vlasenkob8baf402008-11-20 23:41:56 +00009 * parts of the version comparison code is plucked from the real dpkg
10 * application which is licensed GPLv2 and
11 * copyright (c) 1995 Ian Jackson <ian@chiark.greenend.org.uk>
12 *
Rob Landleyd921b2e2006-08-03 15:41:12 +000013 * started life as a busybox implementation of udpkg
Glenn L McGrathccd65c92001-07-13 18:35:24 +000014 *
Rob Landleyd921b2e2006-08-03 15:41:12 +000015 * licensed under gplv2 or later, see file license in this tarball for details.
Glenn L McGrathccd65c92001-07-13 18:35:24 +000016 */
Glenn L McGrath649968c2001-02-10 14:26:48 +000017
Glenn L McGrathccd65c92001-07-13 18:35:24 +000018/*
Rob Landleyd921b2e2006-08-03 15:41:12 +000019 * known difference between busybox dpkg and the official dpkg that i don't
Glenn L McGrathccd65c92001-07-13 18:35:24 +000020 * consider important, its worth keeping a note of differences anyway, just to
21 * make it easier to maintain.
Rob Landleyd921b2e2006-08-03 15:41:12 +000022 * - the first value for the confflile: field isnt placed on a new line.
23 * - when installing a package the status: field is placed at the end of the
24 * section, rather than just after the package: field.
Glenn L McGrathccd65c92001-07-13 18:35:24 +000025 *
Rob Landleyd921b2e2006-08-03 15:41:12 +000026 * bugs that need to be fixed
Glenn L McGrathef0eab52001-10-25 14:49:48 +000027 * - (unknown, please let me know when you find any)
28 *
Glenn L McGrathccd65c92001-07-13 18:35:24 +000029 */
30
Denis Vlasenkob6adbf12007-05-26 19:00:18 +000031#include "libbb.h"
Bernhard Reutner-Fischer97516fc2008-09-25 12:18:49 +000032#include <fnmatch.h>
Rob Landleyd921b2e2006-08-03 15:41:12 +000033#include "unarchive.h"
Glenn L McGrathc9005752001-02-10 02:05:24 +000034
Rob Landleyd921b2e2006-08-03 15:41:12 +000035/* note: if you vary hash_prime sizes be aware,
36 * 1) tweaking these will have a big effect on how much memory this program uses.
37 * 2) for computational efficiency these hash tables should be at least 20%
Glenn L McGrathef0eab52001-10-25 14:49:48 +000038 * larger than the maximum number of elements stored in it.
Rob Landleyd921b2e2006-08-03 15:41:12 +000039 * 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 +000040 * for a prime, try http://www.utm.edu/research/primes/lists/small/10000.txt
Rob Landleyd921b2e2006-08-03 15:41:12 +000041 * 4) if you go bigger than 15 bits you may get into trouble (untested) as its
Denis Vlasenkoa6df5902006-12-22 18:32:40 +000042 * sometimes cast to an unsigned, if you go to 16 bit you will overlap
Glenn L McGrathef0eab52001-10-25 14:49:48 +000043 * int's and chaos is assured, 16381 is the max prime for 14 bit field
44 */
45
Eric Andersenc7bda1c2004-03-15 08:29:22 +000046/* NAME_HASH_PRIME, Stores package names and versions,
Glenn L McGrathef0eab52001-10-25 14:49:48 +000047 * I estimate it should be at least 50% bigger than PACKAGE_HASH_PRIME,
48 * as there a lot of duplicate version numbers */
49#define NAME_HASH_PRIME 16381
Glenn L McGrathef0eab52001-10-25 14:49:48 +000050
51/* PACKAGE_HASH_PRIME, Maximum number of unique packages,
52 * It must not be smaller than STATUS_HASH_PRIME,
53 * Currently only packages from status_hashtable are stored in here, but in
54 * future this may be used to store packages not only from a status file,
55 * but an available_hashtable, and even multiple packages files.
56 * Package can be stored more than once if they have different versions.
57 * e.g. The same package may have different versions in the status file
58 * and available file */
59#define PACKAGE_HASH_PRIME 10007
60typedef struct edge_s {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +000061 unsigned operator:4; /* was:3 */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +000062 unsigned type:4;
Denis Vlasenko334fa9b2007-04-13 23:22:58 +000063 unsigned name:16; /* was:14 */
64 unsigned version:16; /* was:14 */
Glenn L McGrathef0eab52001-10-25 14:49:48 +000065} edge_t;
66
67typedef struct common_node_s {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +000068 unsigned name:16; /* was:14 */
69 unsigned version:16; /* was:14 */
70 unsigned num_of_edges:16; /* was:14 */
Glenn L McGrathef0eab52001-10-25 14:49:48 +000071 edge_t **edge;
72} common_node_t;
Glenn L McGrathef0eab52001-10-25 14:49:48 +000073
74/* Currently it doesnt store packages that have state-status of not-installed
75 * So it only really has to be the size of the maximum number of packages
Eric Andersenaff114c2004-04-14 17:51:38 +000076 * likely to be installed at any one time, so there is a bit of leeway here */
Glenn L McGrathef0eab52001-10-25 14:49:48 +000077#define STATUS_HASH_PRIME 8191
78typedef struct status_node_s {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +000079 unsigned package:16; /* was:14 */ /* has to fit PACKAGE_HASH_PRIME */
80 unsigned status:16; /* was:14 */ /* has to fit STATUS_HASH_PRIME */
Glenn L McGrathef0eab52001-10-25 14:49:48 +000081} status_node_t;
Denis Vlasenko57308af2006-09-28 22:34:46 +000082
Denis Vlasenkoc87339d2008-06-21 23:15:43 +000083
84/* Globals */
85struct globals {
86 char *name_hashtable[NAME_HASH_PRIME + 1];
87 common_node_t *package_hashtable[PACKAGE_HASH_PRIME + 1];
88 status_node_t *status_hashtable[STATUS_HASH_PRIME + 1];
89};
90#define G (*ptr_to_globals)
91#define name_hashtable (G.name_hashtable )
92#define package_hashtable (G.package_hashtable)
93#define status_hashtable (G.status_hashtable )
94#define INIT_G() do { \
95 SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
96} while (0)
97
Glenn L McGrathef0eab52001-10-25 14:49:48 +000098
Eric Andersenaff114c2004-04-14 17:51:38 +000099/* Even numbers are for 'extras', like ored dependencies or null */
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000100enum edge_type_e {
101 EDGE_NULL = 0,
102 EDGE_PRE_DEPENDS = 1,
103 EDGE_OR_PRE_DEPENDS = 2,
104 EDGE_DEPENDS = 3,
105 EDGE_OR_DEPENDS = 4,
106 EDGE_REPLACES = 5,
107 EDGE_PROVIDES = 7,
108 EDGE_CONFLICTS = 9,
109 EDGE_SUGGESTS = 11,
110 EDGE_RECOMMENDS = 13,
111 EDGE_ENHANCES = 15
Glenn L McGrathccd65c92001-07-13 18:35:24 +0000112};
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000113enum operator_e {
114 VER_NULL = 0,
115 VER_EQUAL = 1,
116 VER_LESS = 2,
117 VER_LESS_EQUAL = 3,
118 VER_MORE = 4,
119 VER_MORE_EQUAL = 5,
120 VER_ANY = 6
121};
122
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000123typedef struct deb_file_s {
124 char *control_file;
125 char *filename;
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000126 unsigned package:16; /* was:14 */
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000127} deb_file_t;
128
129
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000130static void make_hash(const char *key, unsigned *start, unsigned *decrement, const int hash_prime)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000131{
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000132 unsigned long hash_num = key[0];
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000133 int len = strlen(key);
134 int i;
135
136 /* Maybe i should have uses a "proper" hashing algorithm here instead
137 * of making one up myself, seems to be working ok though. */
Denis Vlasenko57308af2006-09-28 22:34:46 +0000138 for (i = 1; i < len; i++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000139 /* shifts the ascii based value and adds it to previous value
140 * shift amount is mod 24 because long int is 32 bit and data
Eric Andersenaff114c2004-04-14 17:51:38 +0000141 * to be shifted is 8, don't want to shift data to where it has
Denis Vlasenkob8baf402008-11-20 23:41:56 +0000142 * no effect */
Denis Vlasenkod235f582008-06-21 22:46:58 +0000143 hash_num += (key[i] + key[i-1]) << ((key[i] * i) % 24);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000144 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000145 *start = (unsigned) hash_num % hash_prime;
146 *decrement = (unsigned) 1 + (hash_num % (hash_prime - 1));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000147}
148
149/* this adds the key to the hash table */
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000150static int search_name_hashtable(const char *key)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000151{
Denis Vlasenkod235f582008-06-21 22:46:58 +0000152 unsigned probe_address;
153 unsigned probe_decrement;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000154
155 make_hash(key, &probe_address, &probe_decrement, NAME_HASH_PRIME);
Denis Vlasenko57308af2006-09-28 22:34:46 +0000156 while (name_hashtable[probe_address] != NULL) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000157 if (strcmp(name_hashtable[probe_address], key) == 0) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000158 return probe_address;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000159 }
160 probe_address -= probe_decrement;
161 if ((int)probe_address < 0) {
162 probe_address += NAME_HASH_PRIME;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000163 }
164 }
Rob Landleyd921b2e2006-08-03 15:41:12 +0000165 name_hashtable[probe_address] = xstrdup(key);
Denis Vlasenko54928842006-09-28 22:35:42 +0000166 return probe_address;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000167}
168
169/* this DOESNT add the key to the hashtable
170 * TODO make it consistent with search_name_hashtable
171 */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000172static unsigned search_status_hashtable(const char *key)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000173{
Denis Vlasenkod235f582008-06-21 22:46:58 +0000174 unsigned probe_address;
175 unsigned probe_decrement;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000176
177 make_hash(key, &probe_address, &probe_decrement, STATUS_HASH_PRIME);
Denis Vlasenko57308af2006-09-28 22:34:46 +0000178 while (status_hashtable[probe_address] != NULL) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000179 if (strcmp(key, name_hashtable[package_hashtable[status_hashtable[probe_address]->package]->name]) == 0) {
180 break;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000181 }
182 probe_address -= probe_decrement;
183 if ((int)probe_address < 0) {
184 probe_address += STATUS_HASH_PRIME;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000185 }
186 }
Denis Vlasenko54928842006-09-28 22:35:42 +0000187 return probe_address;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000188}
189
Denis Vlasenkob8baf402008-11-20 23:41:56 +0000190static int order(char x)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000191{
Denis Vlasenkob8baf402008-11-20 23:41:56 +0000192 return (x == '~' ? -1
193 : x == '\0' ? 0
194 : isdigit(x) ? 0
195 : isalpha(x) ? x
196 : (unsigned char)x + 256
197 );
198}
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000199
Denis Vlasenkob8baf402008-11-20 23:41:56 +0000200/* This code is taken from dpkg and modified slightly to work with busybox */
201static int version_compare_part(const char *val, const char *ref)
202{
203 if (!val) val = "";
204 if (!ref) ref = "";
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000205
Denis Vlasenkob8baf402008-11-20 23:41:56 +0000206 while (*val || *ref) {
207 int first_diff;
208
209 while ((*val && !isdigit(*val)) || (*ref && !isdigit(*ref))) {
210 int vc = order(*val);
211 int rc = order(*ref);
212 if (vc != rc)
213 return vc - rc;
214 val++;
215 ref++;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000216 }
217
Denis Vlasenkob8baf402008-11-20 23:41:56 +0000218 while (*val == '0')
219 val++;
220 while (*ref == '0')
221 ref++;
222
223 first_diff = 0;
224 while (isdigit(*val) && isdigit(*ref)) {
225 if (first_diff == 0)
226 first_diff = *val - *ref;
227 val++;
228 ref++;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000229 }
Denis Vlasenkob8baf402008-11-20 23:41:56 +0000230 if (isdigit(*val))
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000231 return 1;
Denis Vlasenkob8baf402008-11-20 23:41:56 +0000232 if (isdigit(*ref))
233 return -1;
234 if (first_diff)
235 return first_diff;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000236 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000237 return 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000238}
239
240/* if ver1 < ver2 return -1,
241 * if ver1 = ver2 return 0,
242 * if ver1 > ver2 return 1,
243 */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000244static int version_compare(const unsigned ver1, const unsigned ver2)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000245{
246 char *ch_ver1 = name_hashtable[ver1];
247 char *ch_ver2 = name_hashtable[ver2];
Denis Vlasenkob8baf402008-11-20 23:41:56 +0000248 unsigned long epoch1 = 0, epoch2 = 0;
249 char *colon;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000250 char *deb_ver1, *deb_ver2;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000251 char *upstream_ver1;
252 char *upstream_ver2;
253 int result;
254
255 /* Compare epoch */
Denis Vlasenkob8baf402008-11-20 23:41:56 +0000256 colon = strchr(ch_ver1, ':');
257 if (colon) {
258 epoch1 = atoi(ch_ver1);
259 ch_ver1 = colon + 1;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000260 }
Denis Vlasenkob8baf402008-11-20 23:41:56 +0000261 colon = strchr(ch_ver2, ':');
262 if (colon) {
263 epoch2 = atoi(ch_ver2);
264 ch_ver2 = colon + 1;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000265 }
266 if (epoch1 < epoch2) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000267 return -1;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000268 }
Denis Vlasenkob8baf402008-11-20 23:41:56 +0000269 if (epoch1 > epoch2) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000270 return 1;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000271 }
272
273 /* Compare upstream version */
Denis Vlasenkob8baf402008-11-20 23:41:56 +0000274 upstream_ver1 = xstrdup(ch_ver1);
275 upstream_ver2 = xstrdup(ch_ver2);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000276
277 /* Chop off debian version, and store for later use */
278 deb_ver1 = strrchr(upstream_ver1, '-');
279 deb_ver2 = strrchr(upstream_ver2, '-');
280 if (deb_ver1) {
281 deb_ver1[0] = '\0';
282 deb_ver1++;
283 }
284 if (deb_ver2) {
285 deb_ver2[0] = '\0';
286 deb_ver2++;
287 }
288 result = version_compare_part(upstream_ver1, upstream_ver2);
Denis Vlasenkoaecabff2006-09-30 21:05:25 +0000289 if (!result)
290 /* Compare debian versions */
291 result = version_compare_part(deb_ver1, deb_ver2);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000292
293 free(upstream_ver1);
294 free(upstream_ver2);
Denis Vlasenkoaecabff2006-09-30 21:05:25 +0000295 return result;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000296}
297
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000298static int test_version(const unsigned version1, const unsigned version2, const unsigned operator)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000299{
300 const int version_result = version_compare(version1, version2);
Denis Vlasenkoc16bd212006-09-27 19:51:06 +0000301 switch (operator) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000302 case VER_ANY:
303 return TRUE;
304 case VER_EQUAL:
305 return (version_result == 0);
306 case VER_LESS:
307 return (version_result < 0);
308 case VER_LESS_EQUAL:
309 return (version_result <= 0);
310 case VER_MORE:
311 return (version_result > 0);
312 case VER_MORE_EQUAL:
313 return (version_result >= 0);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000314 }
Denis Vlasenko54928842006-09-28 22:35:42 +0000315 return FALSE;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000316}
317
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000318static int search_package_hashtable(const unsigned name, const unsigned version, const unsigned operator)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000319{
Denis Vlasenkod235f582008-06-21 22:46:58 +0000320 unsigned probe_address;
321 unsigned probe_decrement;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000322
323 make_hash(name_hashtable[name], &probe_address, &probe_decrement, PACKAGE_HASH_PRIME);
Denis Vlasenko57308af2006-09-28 22:34:46 +0000324 while (package_hashtable[probe_address] != NULL) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000325 if (package_hashtable[probe_address]->name == name) {
326 if (operator == VER_ANY) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000327 return probe_address;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000328 }
329 if (test_version(package_hashtable[probe_address]->version, version, operator)) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000330 return probe_address;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000331 }
332 }
333 probe_address -= probe_decrement;
334 if ((int)probe_address < 0) {
335 probe_address += PACKAGE_HASH_PRIME;
336 }
337 }
Denis Vlasenko54928842006-09-28 22:35:42 +0000338 return probe_address;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000339}
340
341/*
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000342 * This function searches through the entire package_hashtable looking
343 * for a package which provides "needle". It returns the index into
Eric Andersenaff114c2004-04-14 17:51:38 +0000344 * the package_hashtable for the providing package.
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000345 *
346 * needle is the index into name_hashtable of the package we are
347 * looking for.
348 *
349 * start_at is the index in the package_hashtable to start looking
350 * at. If start_at is -1 then start at the beginning. This is to allow
351 * for repeated searches since more than one package might provide
352 * needle.
353 *
354 * FIXME: I don't think this is very efficient, but I thought I'd keep
355 * it simple for now until it proves to be a problem.
356 */
Denis Vlasenkoac678ec2007-04-16 22:32:04 +0000357static int search_for_provides(int needle, int start_at)
358{
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000359 int i, j;
360 common_node_t *p;
361 for (i = start_at + 1; i < PACKAGE_HASH_PRIME; i++) {
362 p = package_hashtable[i];
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000363 if (p == NULL)
364 continue;
Denis Vlasenko57308af2006-09-28 22:34:46 +0000365 for (j = 0; j < p->num_of_edges; j++)
366 if (p->edge[j]->type == EDGE_PROVIDES && p->edge[j]->name == needle)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000367 return i;
368 }
369 return -1;
370}
371
372/*
373 * Add an edge to a node
374 */
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000375static void add_edge_to_node(common_node_t *node, edge_t *edge)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000376{
Denis Vlasenkodeeed592008-07-08 05:14:36 +0000377 node->edge = xrealloc_vector(node->edge, 2, node->num_of_edges);
378 node->edge[node->num_of_edges++] = edge;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000379}
380
381/*
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000382 * Create one new node and one new edge for every dependency.
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000383 *
384 * Dependencies which contain multiple alternatives are represented as
385 * an EDGE_OR_PRE_DEPENDS or EDGE_OR_DEPENDS node, followed by a
386 * number of EDGE_PRE_DEPENDS or EDGE_DEPENDS nodes. The name field of
387 * the OR edge contains the full dependency string while the version
388 * field contains the number of EDGE nodes which follow as part of
389 * this alternative.
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000390 */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000391static void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned edge_type)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000392{
Rob Landleyd921b2e2006-08-03 15:41:12 +0000393 char *line = xstrdup(whole_line);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000394 char *line2;
395 char *line_ptr1 = NULL;
396 char *line_ptr2 = NULL;
397 char *field;
398 char *field2;
399 char *version;
400 edge_t *edge;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000401 edge_t *or_edge;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000402 int offset_ch;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000403
404 field = strtok_r(line, ",", &line_ptr1);
405 do {
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000406 /* skip leading spaces */
407 field += strspn(field, " ");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000408 line2 = xstrdup(field);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000409 field2 = strtok_r(line2, "|", &line_ptr2);
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000410 or_edge = NULL;
411 if ((edge_type == EDGE_DEPENDS || edge_type == EDGE_PRE_DEPENDS)
412 && (strcmp(field, field2) != 0)
413 ) {
Denis Vlasenkod235f582008-06-21 22:46:58 +0000414 or_edge = xzalloc(sizeof(edge_t));
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000415 or_edge->type = edge_type + 1;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000416 or_edge->name = search_name_hashtable(field);
Denis Vlasenkod235f582008-06-21 22:46:58 +0000417 //or_edge->version = 0; // tracks the number of alternatives
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000418 add_edge_to_node(parent_node, or_edge);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000419 }
420
421 do {
Denis Vlasenkob95636c2006-12-19 23:36:04 +0000422 edge = xmalloc(sizeof(edge_t));
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000423 edge->type = edge_type;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000424
425 /* Skip any extra leading spaces */
426 field2 += strspn(field2, " ");
427
428 /* Get dependency version info */
429 version = strchr(field2, '(');
430 if (version == NULL) {
431 edge->operator = VER_ANY;
432 /* Get the versions hash number, adding it if the number isnt already in there */
433 edge->version = search_name_hashtable("ANY");
434 } else {
435 /* Skip leading ' ' or '(' */
Bernhard Reutner-Fischer6c501a72007-06-05 17:28:56 +0000436 version += strspn(version, " (");
Eric Andersenaff114c2004-04-14 17:51:38 +0000437 /* Calculate length of any operator characters */
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000438 offset_ch = strspn(version, "<=>");
439 /* Determine operator */
440 if (offset_ch > 0) {
441 if (strncmp(version, "=", offset_ch) == 0) {
442 edge->operator = VER_EQUAL;
Denis Vlasenkod235f582008-06-21 22:46:58 +0000443 } else if (strncmp(version, "<<", offset_ch) == 0) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000444 edge->operator = VER_LESS;
Denis Vlasenkod235f582008-06-21 22:46:58 +0000445 } else if (strncmp(version, "<=", offset_ch) == 0) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000446 edge->operator = VER_LESS_EQUAL;
Denis Vlasenkod235f582008-06-21 22:46:58 +0000447 } else if (strncmp(version, ">>", offset_ch) == 0) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000448 edge->operator = VER_MORE;
Denis Vlasenkod235f582008-06-21 22:46:58 +0000449 } else if (strncmp(version, ">=", offset_ch) == 0) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000450 edge->operator = VER_MORE_EQUAL;
451 } else {
Denis Vlasenko57308af2006-09-28 22:34:46 +0000452 bb_error_msg_and_die("illegal operator");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000453 }
454 }
455 /* skip to start of version numbers */
456 version += offset_ch;
457 version += strspn(version, " ");
458
459 /* Truncate version at trailing ' ' or ')' */
460 version[strcspn(version, " )")] = '\0';
461 /* Get the versions hash number, adding it if the number isnt already in there */
462 edge->version = search_name_hashtable(version);
463 }
464
465 /* Get the dependency name */
466 field2[strcspn(field2, " (")] = '\0';
467 edge->name = search_name_hashtable(field2);
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000468
Denis Vlasenko57308af2006-09-28 22:34:46 +0000469 if (or_edge)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000470 or_edge->version++;
471
472 add_edge_to_node(parent_node, edge);
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000473 field2 = strtok_r(NULL, "|", &line_ptr2);
474 } while (field2 != NULL);
475
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000476 free(line2);
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000477 field = strtok_r(NULL, ",", &line_ptr1);
478 } while (field != NULL);
479
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000480 free(line);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000481}
482
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000483static void free_package(common_node_t *node)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000484{
Denis Vlasenko54928842006-09-28 22:35:42 +0000485 unsigned i;
Glenn L McGratha94a06a2002-05-29 13:45:34 +0000486 if (node) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000487 for (i = 0; i < node->num_of_edges; i++) {
Aaron Lehmanna170e1c2002-11-28 11:27:31 +0000488 free(node->edge[i]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000489 }
Rob Landleye7c43b62006-03-01 16:39:45 +0000490 free(node->edge);
Glenn L McGratha94a06a2002-05-29 13:45:34 +0000491 free(node);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000492 }
493}
494
Rob Landleyd921b2e2006-08-03 15:41:12 +0000495/*
Denys Vlasenko5370bfb2009-09-06 02:58:59 +0200496 * Gets the next package field from package_buffer, separated into the field name
Rob Landleyd921b2e2006-08-03 15:41:12 +0000497 * and field value, it returns the int offset to the first character of the next field
498 */
499static int read_package_field(const char *package_buffer, char **field_name, char **field_value)
500{
501 int offset_name_start = 0;
502 int offset_name_end = 0;
503 int offset_value_start = 0;
504 int offset_value_end = 0;
505 int offset = 0;
506 int next_offset;
507 int name_length;
508 int value_length;
509 int exit_flag = FALSE;
510
511 if (package_buffer == NULL) {
512 *field_name = NULL;
513 *field_value = NULL;
Denis Vlasenko54928842006-09-28 22:35:42 +0000514 return -1;
Rob Landleyd921b2e2006-08-03 15:41:12 +0000515 }
516 while (1) {
517 next_offset = offset + 1;
518 switch (package_buffer[offset]) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000519 case '\0':
Rob Landleyd921b2e2006-08-03 15:41:12 +0000520 exit_flag = TRUE;
521 break;
Denis Vlasenko54928842006-09-28 22:35:42 +0000522 case ':':
Rob Landleyd921b2e2006-08-03 15:41:12 +0000523 if (offset_name_end == 0) {
524 offset_name_end = offset;
525 offset_value_start = next_offset;
526 }
527 /* TODO: Name might still have trailing spaces if ':' isnt
528 * immediately after name */
529 break;
Denis Vlasenko54928842006-09-28 22:35:42 +0000530 case '\n':
Rob Landleyd921b2e2006-08-03 15:41:12 +0000531 /* TODO: The char next_offset may be out of bounds */
532 if (package_buffer[next_offset] != ' ') {
533 exit_flag = TRUE;
534 break;
535 }
Denis Vlasenko54928842006-09-28 22:35:42 +0000536 case '\t':
537 case ' ':
Rob Landleyd921b2e2006-08-03 15:41:12 +0000538 /* increment the value start point if its a just filler */
539 if (offset_name_start == offset) {
540 offset_name_start++;
541 }
542 if (offset_value_start == offset) {
543 offset_value_start++;
544 }
545 break;
546 }
547 if (exit_flag) {
548 /* Check that the names are valid */
549 offset_value_end = offset;
550 name_length = offset_name_end - offset_name_start;
551 value_length = offset_value_end - offset_value_start;
552 if (name_length == 0) {
553 break;
554 }
555 if ((name_length > 0) && (value_length > 0)) {
556 break;
557 }
558
559 /* If not valid, start fresh with next field */
560 exit_flag = FALSE;
561 offset_name_start = offset + 1;
562 offset_name_end = 0;
563 offset_value_start = offset + 1;
564 offset_value_end = offset + 1;
565 offset++;
566 }
567 offset++;
568 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000569 *field_name = NULL;
570 if (name_length) {
Rob Landleyd921b2e2006-08-03 15:41:12 +0000571 *field_name = xstrndup(&package_buffer[offset_name_start], name_length);
572 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000573 *field_value = NULL;
Rob Landleyd921b2e2006-08-03 15:41:12 +0000574 if (value_length > 0) {
575 *field_value = xstrndup(&package_buffer[offset_value_start], value_length);
Rob Landleyd921b2e2006-08-03 15:41:12 +0000576 }
Denis Vlasenko54928842006-09-28 22:35:42 +0000577 return next_offset;
Rob Landleyd921b2e2006-08-03 15:41:12 +0000578}
579
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000580static unsigned fill_package_struct(char *control_buffer)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000581{
Denis Vlasenko6ca409e2007-08-12 20:58:27 +0000582 static const char field_names[] ALIGN1 =
583 "Package\0""Version\0"
Denis Vlasenko990d0f62007-07-24 15:54:42 +0000584 "Pre-Depends\0""Depends\0""Replaces\0""Provides\0"
585 "Conflicts\0""Suggests\0""Recommends\0""Enhances\0";
Rob Landley0a7c8ef2006-02-22 17:01:00 +0000586
Denis Vlasenko4cccc032006-12-22 18:37:07 +0000587 common_node_t *new_node = xzalloc(sizeof(common_node_t));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000588 char *field_name;
589 char *field_value;
590 int field_start = 0;
591 int num = -1;
592 int buffer_length = strlen(control_buffer);
593
594 new_node->version = search_name_hashtable("unknown");
595 while (field_start < buffer_length) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000596 unsigned field_num;
Glenn L McGrath62d28822002-11-06 23:35:28 +0000597
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000598 field_start += read_package_field(&control_buffer[field_start],
599 &field_name, &field_value);
600
601 if (field_name == NULL) {
Denis Vlasenkoabee3d02007-12-26 20:44:45 +0000602 goto fill_package_struct_cleanup;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000603 }
604
Denis Vlasenko990d0f62007-07-24 15:54:42 +0000605 field_num = index_in_strings(field_names, field_name);
Denis Vlasenkoc16bd212006-09-27 19:51:06 +0000606 switch (field_num) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000607 case 0: /* Package */
608 new_node->name = search_name_hashtable(field_value);
609 break;
610 case 1: /* Version */
611 new_node->version = search_name_hashtable(field_value);
612 break;
613 case 2: /* Pre-Depends */
614 add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
615 break;
616 case 3: /* Depends */
617 add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
618 break;
619 case 4: /* Replaces */
620 add_split_dependencies(new_node, field_value, EDGE_REPLACES);
621 break;
622 case 5: /* Provides */
623 add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
624 break;
625 case 6: /* Conflicts */
626 add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
627 break;
628 case 7: /* Suggests */
629 add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
630 break;
631 case 8: /* Recommends */
632 add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
633 break;
634 case 9: /* Enhances */
635 add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
636 break;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000637 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000638 fill_package_struct_cleanup:
Aaron Lehmanna170e1c2002-11-28 11:27:31 +0000639 free(field_name);
640 free(field_value);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000641 }
642
643 if (new_node->version == search_name_hashtable("unknown")) {
644 free_package(new_node);
Denis Vlasenko54928842006-09-28 22:35:42 +0000645 return -1;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000646 }
647 num = search_package_hashtable(new_node->name, new_node->version, VER_EQUAL);
Denis Vlasenko88a2aa92007-03-19 21:48:56 +0000648 free_package(package_hashtable[num]);
Bernhard Reutner-Fischerde8a6a02007-03-19 13:44:18 +0000649 package_hashtable[num] = new_node;
Denis Vlasenko54928842006-09-28 22:35:42 +0000650 return num;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000651}
652
653/* if num = 1, it returns the want status, 2 returns flag, 3 returns status */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000654static unsigned get_status(const unsigned status_node, const int num)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000655{
656 char *status_string = name_hashtable[status_hashtable[status_node]->status];
657 char *state_sub_string;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000658 unsigned state_sub_num;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000659 int len;
660 int i;
661
662 /* set tmp_string to point to the start of the word number */
663 for (i = 1; i < num; i++) {
664 /* skip past a word */
665 status_string += strcspn(status_string, " ");
Eric Andersenaff114c2004-04-14 17:51:38 +0000666 /* skip past the separating spaces */
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000667 status_string += strspn(status_string, " ");
668 }
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +0000669 len = strcspn(status_string, " \n");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000670 state_sub_string = xstrndup(status_string, len);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000671 state_sub_num = search_name_hashtable(state_sub_string);
672 free(state_sub_string);
Denis Vlasenko54928842006-09-28 22:35:42 +0000673 return state_sub_num;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000674}
675
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000676static void set_status(const unsigned status_node_num, const char *new_value, const int position)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000677{
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000678 const unsigned new_value_len = strlen(new_value);
679 const unsigned new_value_num = search_name_hashtable(new_value);
680 unsigned want = get_status(status_node_num, 1);
681 unsigned flag = get_status(status_node_num, 2);
682 unsigned status = get_status(status_node_num, 3);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000683 int want_len = strlen(name_hashtable[want]);
684 int flag_len = strlen(name_hashtable[flag]);
685 int status_len = strlen(name_hashtable[status]);
686 char *new_status;
687
688 switch (position) {
Denis Vlasenko54928842006-09-28 22:35:42 +0000689 case 1:
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000690 want = new_value_num;
691 want_len = new_value_len;
692 break;
Denis Vlasenko54928842006-09-28 22:35:42 +0000693 case 2:
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000694 flag = new_value_num;
695 flag_len = new_value_len;
696 break;
Denis Vlasenko54928842006-09-28 22:35:42 +0000697 case 3:
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000698 status = new_value_num;
699 status_len = new_value_len;
700 break;
701 default:
Manuel Novoa III cad53642003-03-19 09:13:01 +0000702 bb_error_msg_and_die("DEBUG ONLY: this shouldnt happen");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000703 }
704
Rob Landleyd921b2e2006-08-03 15:41:12 +0000705 new_status = xasprintf("%s %s %s", name_hashtable[want], name_hashtable[flag], name_hashtable[status]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000706 status_hashtable[status_node_num]->status = search_name_hashtable(new_status);
707 free(new_status);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000708}
709
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000710static const char *describe_status(int status_num)
711{
Denis Vlasenkob71c6682007-07-21 15:08:09 +0000712 int status_want, status_state;
Denis Vlasenko57308af2006-09-28 22:34:46 +0000713 if (status_hashtable[status_num] == NULL || status_hashtable[status_num]->status == 0)
Denis Vlasenko15611bb2007-06-12 08:52:02 +0000714 return "is not installed or flagged to be installed";
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000715
716 status_want = get_status(status_num, 1);
717 status_state = get_status(status_num, 3);
718
Denis Vlasenko57308af2006-09-28 22:34:46 +0000719 if (status_state == search_name_hashtable("installed")) {
720 if (status_want == search_name_hashtable("install"))
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000721 return "is installed";
Denis Vlasenko57308af2006-09-28 22:34:46 +0000722 if (status_want == search_name_hashtable("deinstall"))
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000723 return "is marked to be removed";
Denis Vlasenko57308af2006-09-28 22:34:46 +0000724 if (status_want == search_name_hashtable("purge"))
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000725 return "is marked to be purged";
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000726 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000727 if (status_want == search_name_hashtable("unknown"))
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000728 return "is in an indeterminate state";
Denis Vlasenko57308af2006-09-28 22:34:46 +0000729 if (status_want == search_name_hashtable("install"))
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000730 return "is marked to be installed";
731
732 return "is not installed or flagged to be installed";
733}
734
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000735static void index_status_file(const char *filename)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000736{
737 FILE *status_file;
738 char *control_buffer;
739 char *status_line;
740 status_node_t *status_node = NULL;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000741 unsigned status_num;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000742
Denis Vlasenko5415c852008-07-21 23:05:26 +0000743 status_file = xfopen_for_read(filename);
Denis Vlasenkoabee3d02007-12-26 20:44:45 +0000744 while ((control_buffer = xmalloc_fgetline_str(status_file, "\n\n")) != NULL) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000745 const unsigned package_num = fill_package_struct(control_buffer);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000746 if (package_num != -1) {
747 status_node = xmalloc(sizeof(status_node_t));
748 /* fill_package_struct doesnt handle the status field */
749 status_line = strstr(control_buffer, "Status:");
750 if (status_line != NULL) {
751 status_line += 7;
752 status_line += strspn(status_line, " \n\t");
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +0000753 status_line = xstrndup(status_line, strcspn(status_line, "\n"));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000754 status_node->status = search_name_hashtable(status_line);
755 free(status_line);
756 }
757 status_node->package = package_num;
758 status_num = search_status_hashtable(name_hashtable[package_hashtable[status_node->package]->name]);
759 status_hashtable[status_num] = status_node;
760 }
761 free(control_buffer);
762 }
763 fclose(status_file);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000764}
765
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000766static void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000767{
768 char *name;
769 char *value;
770 int start = 0;
771 while (1) {
772 start += read_package_field(&control_buffer[start], &name, &value);
773 if (name == NULL) {
774 break;
775 }
776 if (strcmp(name, "Status") != 0) {
777 fprintf(new_status_file, "%s: %s\n", name, value);
778 }
779 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000780}
781
782/* This could do with a cleanup */
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000783static void write_status_file(deb_file_t **deb_file)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000784{
Denis Vlasenko5415c852008-07-21 23:05:26 +0000785 FILE *old_status_file = xfopen_for_read("/var/lib/dpkg/status");
786 FILE *new_status_file = xfopen_for_write("/var/lib/dpkg/status.udeb");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000787 char *package_name;
788 char *status_from_file;
789 char *control_buffer = NULL;
790 char *tmp_string;
791 int status_num;
792 int field_start = 0;
793 int write_flag;
794 int i = 0;
795
796 /* Update previously known packages */
Denis Vlasenkoabee3d02007-12-26 20:44:45 +0000797 while ((control_buffer = xmalloc_fgetline_str(old_status_file, "\n\n")) != NULL) {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000798 tmp_string = strstr(control_buffer, "Package:");
799 if (tmp_string == NULL) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000800 continue;
801 }
802
803 tmp_string += 8;
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000804 tmp_string += strspn(tmp_string, " \n\t");
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +0000805 package_name = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000806 write_flag = FALSE;
807 tmp_string = strstr(control_buffer, "Status:");
808 if (tmp_string != NULL) {
Denys Vlasenko5370bfb2009-09-06 02:58:59 +0200809 /* Separate the status value from the control buffer */
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000810 tmp_string += 7;
811 tmp_string += strspn(tmp_string, " \n\t");
Rob Landleyd921b2e2006-08-03 15:41:12 +0000812 status_from_file = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000813 } else {
814 status_from_file = NULL;
815 }
816
817 /* Find this package in the status hashtable */
818 status_num = search_status_hashtable(package_name);
819 if (status_hashtable[status_num] != NULL) {
820 const char *status_from_hashtable = name_hashtable[status_hashtable[status_num]->status];
821 if (strcmp(status_from_file, status_from_hashtable) != 0) {
822 /* New status isnt exactly the same as old status */
823 const int state_status = get_status(status_num, 3);
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000824 if ((strcmp("installed", name_hashtable[state_status]) == 0)
825 || (strcmp("unpacked", name_hashtable[state_status]) == 0)
826 ) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000827 /* We need to add the control file from the package */
828 i = 0;
Denis Vlasenko57308af2006-09-28 22:34:46 +0000829 while (deb_file[i] != NULL) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000830 if (strcmp(package_name, name_hashtable[package_hashtable[deb_file[i]->package]->name]) == 0) {
831 /* Write a status file entry with a modified status */
832 /* remove trailing \n's */
833 write_buffer_no_status(new_status_file, deb_file[i]->control_file);
834 set_status(status_num, "ok", 2);
Denis Vlasenkoa6dbb082006-10-12 19:29:44 +0000835 fprintf(new_status_file, "Status: %s\n\n",
836 name_hashtable[status_hashtable[status_num]->status]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000837 write_flag = TRUE;
838 break;
839 }
840 i++;
841 }
842 /* This is temperary, debugging only */
843 if (deb_file[i] == NULL) {
Denis Vlasenkoa6dbb082006-10-12 19:29:44 +0000844 bb_error_msg_and_die("ALERT: cannot find a control file, "
845 "your status file may be broken, status may be "
846 "incorrect for %s", package_name);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000847 }
848 }
849 else if (strcmp("not-installed", name_hashtable[state_status]) == 0) {
850 /* Only write the Package, Status, Priority and Section lines */
851 fprintf(new_status_file, "Package: %s\n", package_name);
852 fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
853
854 while (1) {
855 char *field_name;
856 char *field_value;
857 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
858 if (field_name == NULL) {
859 break;
860 }
861 if ((strcmp(field_name, "Priority") == 0) ||
862 (strcmp(field_name, "Section") == 0)) {
863 fprintf(new_status_file, "%s: %s\n", field_name, field_value);
864 }
865 }
866 write_flag = TRUE;
867 fputs("\n", new_status_file);
868 }
869 else if (strcmp("config-files", name_hashtable[state_status]) == 0) {
870 /* only change the status line */
871 while (1) {
872 char *field_name;
873 char *field_value;
874 field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
875 if (field_name == NULL) {
876 break;
877 }
878 /* Setup start point for next field */
879 if (strcmp(field_name, "Status") == 0) {
880 fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
881 } else {
882 fprintf(new_status_file, "%s: %s\n", field_name, field_value);
883 }
884 }
885 write_flag = TRUE;
886 fputs("\n", new_status_file);
887 }
888 }
889 }
890 /* If the package from the status file wasnt handle above, do it now*/
Denis Vlasenko334fa9b2007-04-13 23:22:58 +0000891 if (!write_flag) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000892 fprintf(new_status_file, "%s\n\n", control_buffer);
893 }
894
Aaron Lehmanna170e1c2002-11-28 11:27:31 +0000895 free(status_from_file);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000896 free(package_name);
897 free(control_buffer);
898 }
899
900 /* Write any new packages */
Denis Vlasenko57308af2006-09-28 22:34:46 +0000901 for (i = 0; deb_file[i] != NULL; i++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000902 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[i]->package]->name]);
903 if (strcmp("reinstreq", name_hashtable[get_status(status_num, 2)]) == 0) {
904 write_buffer_no_status(new_status_file, deb_file[i]->control_file);
905 set_status(status_num, "ok", 2);
906 fprintf(new_status_file, "Status: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
907 }
908 }
909 fclose(old_status_file);
910 fclose(new_status_file);
911
Eric Andersenaff114c2004-04-14 17:51:38 +0000912 /* Create a separate backfile to dpkg */
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000913 if (rename("/var/lib/dpkg/status", "/var/lib/dpkg/status.udeb.bak") == -1) {
Denis Vlasenkob3b07532008-02-17 14:29:25 +0000914 if (errno != ENOENT)
Denys Vlasenko6331cf02009-11-13 09:08:27 +0100915 bb_error_msg_and_die("can't create backup status file");
Eric Andersenaff114c2004-04-14 17:51:38 +0000916 /* Its ok if renaming the status file fails because status
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000917 * file doesnt exist, maybe we are starting from scratch */
Denis Vlasenko57308af2006-09-28 22:34:46 +0000918 bb_error_msg("no status file found, creating new one");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000919 }
920
Denis Vlasenkob3b07532008-02-17 14:29:25 +0000921 xrename("/var/lib/dpkg/status.udeb", "/var/lib/dpkg/status");
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000922}
923
Eric Andersenaff114c2004-04-14 17:51:38 +0000924/* This function returns TRUE if the given package can satisfy a
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000925 * dependency of type depend_type.
926 *
Eric Andersenaff114c2004-04-14 17:51:38 +0000927 * A pre-depends is satisfied only if a package is already installed,
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000928 * which a regular depends can be satisfied by a package which we want
929 * to install.
930 */
Eric Andersen14f5c8d2005-04-16 19:39:00 +0000931static int package_satisfies_dependency(int package, int depend_type)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000932{
933 int status_num = search_status_hashtable(name_hashtable[package_hashtable[package]->name]);
934
935 /* status could be unknown if package is a pure virtual
936 * provides which cannot satisfy any dependency by itself.
937 */
Denis Vlasenko57308af2006-09-28 22:34:46 +0000938 if (status_hashtable[status_num] == NULL)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000939 return 0;
940
941 switch (depend_type) {
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000942 case EDGE_PRE_DEPENDS: return get_status(status_num, 3) == search_name_hashtable("installed");
943 case EDGE_DEPENDS: return get_status(status_num, 1) == search_name_hashtable("install");
Glenn L McGrathb8c3a542003-11-28 22:38:14 +0000944 }
945 return 0;
946}
947
Denis Vlasenko68404f12008-03-17 09:00:54 +0000948static int check_deps(deb_file_t **deb_file, int deb_start /*, int dep_max_count - ?? */)
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000949{
950 int *conflicts = NULL;
951 int conflicts_num = 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000952 int i = deb_start;
Glenn L McGratha94a06a2002-05-29 13:45:34 +0000953 int j;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000954
955 /* Check for conflicts
956 * TODO: TEST if conflicts with other packages to be installed
957 *
958 * Add install packages and the packages they provide
959 * to the list of files to check conflicts for
960 */
961
962 /* Create array of package numbers to check against
963 * installed package for conflicts*/
964 while (deb_file[i] != NULL) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +0000965 const unsigned package_num = deb_file[i]->package;
Denis Vlasenkodeeed592008-07-08 05:14:36 +0000966 conflicts = xrealloc_vector(conflicts, 2, conflicts_num);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000967 conflicts[conflicts_num] = package_num;
968 conflicts_num++;
969 /* add provides to conflicts list */
970 for (j = 0; j < package_hashtable[package_num]->num_of_edges; j++) {
971 if (package_hashtable[package_num]->edge[j]->type == EDGE_PROVIDES) {
972 const int conflicts_package_num = search_package_hashtable(
973 package_hashtable[package_num]->edge[j]->name,
974 package_hashtable[package_num]->edge[j]->version,
975 package_hashtable[package_num]->edge[j]->operator);
976 if (package_hashtable[conflicts_package_num] == NULL) {
977 /* create a new package */
Denis Vlasenko4cccc032006-12-22 18:37:07 +0000978 common_node_t *new_node = xzalloc(sizeof(common_node_t));
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000979 new_node->name = package_hashtable[package_num]->edge[j]->name;
980 new_node->version = package_hashtable[package_num]->edge[j]->version;
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000981 package_hashtable[conflicts_package_num] = new_node;
982 }
Denis Vlasenkodeeed592008-07-08 05:14:36 +0000983 conflicts = xrealloc_vector(conflicts, 2, conflicts_num);
Glenn L McGrathef0eab52001-10-25 14:49:48 +0000984 conflicts[conflicts_num] = conflicts_package_num;
985 conflicts_num++;
986 }
987 }
988 i++;
989 }
990
991 /* Check conflicts */
Glenn L McGratha94a06a2002-05-29 13:45:34 +0000992 i = 0;
993 while (deb_file[i] != NULL) {
994 const common_node_t *package_node = package_hashtable[deb_file[i]->package];
995 int status_num = 0;
996 status_num = search_status_hashtable(name_hashtable[package_node->name]);
997
998 if (get_status(status_num, 3) == search_name_hashtable("installed")) {
999 i++;
1000 continue;
1001 }
1002
1003 for (j = 0; j < package_node->num_of_edges; j++) {
1004 const edge_t *package_edge = package_node->edge[j];
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001005
1006 if (package_edge->type == EDGE_CONFLICTS) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001007 const unsigned package_num =
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001008 search_package_hashtable(package_edge->name,
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001009 package_edge->version,
1010 package_edge->operator);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001011 int result = 0;
1012 if (package_hashtable[package_num] != NULL) {
1013 status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001014
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001015 if (get_status(status_num, 1) == search_name_hashtable("install")) {
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001016 result = test_version(package_hashtable[deb_file[i]->package]->version,
1017 package_edge->version, package_edge->operator);
1018 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001019 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001020
1021 if (result) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001022 bb_error_msg_and_die("package %s conflicts with %s",
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001023 name_hashtable[package_node->name],
1024 name_hashtable[package_edge->name]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001025 }
1026 }
1027 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001028 i++;
Tim Rikerc1ef7bd2006-01-25 00:08:53 +00001029 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001030
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001031
1032 /* Check dependendcies */
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001033 for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001034 int status_num = 0;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001035 int number_of_alternatives = 0;
Eric Andersenaff114c2004-04-14 17:51:38 +00001036 const edge_t * root_of_alternatives = NULL;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001037 const common_node_t *package_node = package_hashtable[i];
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001038
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001039 /* If the package node does not exist then this
1040 * package is a virtual one. In which case there are
1041 * no dependencies to check.
1042 */
Denis Vlasenko57308af2006-09-28 22:34:46 +00001043 if (package_node == NULL) continue;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001044
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001045 status_num = search_status_hashtable(name_hashtable[package_node->name]);
1046
1047 /* If there is no status then this package is a
1048 * virtual one provided by something else. In which
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001049 * case there are no dependencies to check.
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001050 */
Denis Vlasenko57308af2006-09-28 22:34:46 +00001051 if (status_hashtable[status_num] == NULL) continue;
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001052
1053 /* If we don't want this package installed then we may
1054 * as well ignore it's dependencies.
1055 */
1056 if (get_status(status_num, 1) != search_name_hashtable("install")) {
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001057 continue;
1058 }
1059
Eric Andersenaff114c2004-04-14 17:51:38 +00001060 /* This code is tested only for EDGE_DEPENDS, since I
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001061 * have no suitable pre-depends available. There is no
1062 * reason that it shouldn't work though :-)
1063 */
1064 for (j = 0; j < package_node->num_of_edges; j++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001065 const edge_t *package_edge = package_node->edge[j];
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001066 unsigned package_num;
Tim Rikerc1ef7bd2006-01-25 00:08:53 +00001067
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001068 if (package_edge->type == EDGE_OR_PRE_DEPENDS
1069 || package_edge->type == EDGE_OR_DEPENDS
1070 ) { /* start an EDGE_OR_ list */
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001071 number_of_alternatives = package_edge->version;
1072 root_of_alternatives = package_edge;
1073 continue;
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001074 }
1075 if (number_of_alternatives == 0) { /* not in the middle of an EDGE_OR_ list */
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001076 number_of_alternatives = 1;
1077 root_of_alternatives = NULL;
1078 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001079
Glenn L McGrath1dbbd2f2001-12-05 04:10:14 +00001080 package_num = search_package_hashtable(package_edge->name, package_edge->version, package_edge->operator);
Glenn L McGrath1dbbd2f2001-12-05 04:10:14 +00001081
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001082 if (package_edge->type == EDGE_PRE_DEPENDS ||
Denis Vlasenko57308af2006-09-28 22:34:46 +00001083 package_edge->type == EDGE_DEPENDS) {
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001084 int result=1;
1085 status_num = 0;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001086
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001087 /* If we are inside an alternative then check
1088 * this edge is the right type.
1089 *
1090 * EDGE_DEPENDS == OR_DEPENDS -1
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001091 * EDGE_PRE_DEPENDS == OR_PRE_DEPENDS -1
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001092 */
Denis Vlasenko57308af2006-09-28 22:34:46 +00001093 if (root_of_alternatives && package_edge->type != root_of_alternatives->type - 1)
1094 bb_error_msg_and_die("fatal error, package dependencies corrupt: %d != %d - 1",
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001095 package_edge->type, root_of_alternatives->type);
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001096
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001097 if (package_hashtable[package_num] != NULL)
1098 result = !package_satisfies_dependency(package_num, package_edge->type);
1099
1100 if (result) { /* check for other package which provide what we are looking for */
1101 int provider = -1;
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001102
Denis Vlasenko57308af2006-09-28 22:34:46 +00001103 while ((provider = search_for_provides(package_edge->name, provider)) > -1) {
1104 if (package_hashtable[provider] == NULL) {
1105 puts("Have a provider but no package information for it");
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001106 continue;
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001107 }
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001108 result = !package_satisfies_dependency(provider, package_edge->type);
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001109
Denis Vlasenko57308af2006-09-28 22:34:46 +00001110 if (result == 0)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001111 break;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001112 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001113 }
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001114
1115 /* It must be already installed, or to be installed */
1116 number_of_alternatives--;
1117 if (result && number_of_alternatives == 0) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001118 if (root_of_alternatives)
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001119 bb_error_msg_and_die(
Denis Vlasenko57308af2006-09-28 22:34:46 +00001120 "package %s %sdepends on %s, "
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001121 "which cannot be satisfied",
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001122 name_hashtable[package_node->name],
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001123 package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1124 name_hashtable[root_of_alternatives->name]);
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001125 bb_error_msg_and_die(
1126 "package %s %sdepends on %s, which %s\n",
1127 name_hashtable[package_node->name],
1128 package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
1129 name_hashtable[package_edge->name],
1130 describe_status(status_num));
1131 }
1132 if (result == 0 && number_of_alternatives) {
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001133 /* we've found a package which
1134 * satisfies the dependency,
1135 * so skip over the rest of
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001136 * the alternatives.
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001137 */
1138 j += number_of_alternatives;
1139 number_of_alternatives = 0;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001140 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001141 }
1142 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001143 }
1144 free(conflicts);
Denis Vlasenko54928842006-09-28 22:35:42 +00001145 return TRUE;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001146}
1147
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001148static char **create_list(const char *filename)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001149{
1150 FILE *list_stream;
Denis Vlasenko20273132008-06-21 22:10:52 +00001151 char **file_list;
1152 char *line;
1153 int count;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001154
Eric Andersenaff114c2004-04-14 17:51:38 +00001155 /* don't use [xw]fopen here, handle error ourself */
Denis Vlasenko5415c852008-07-21 23:05:26 +00001156 list_stream = fopen_for_read(filename);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001157 if (list_stream == NULL) {
Denis Vlasenko54928842006-09-28 22:35:42 +00001158 return NULL;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001159 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001160
Denis Vlasenko20273132008-06-21 22:10:52 +00001161 file_list = NULL;
1162 count = 0;
Denis Vlasenko8ee649a2008-03-26 20:04:27 +00001163 while ((line = xmalloc_fgetline(list_stream)) != NULL) {
Denis Vlasenkodeeed592008-07-08 05:14:36 +00001164 file_list = xrealloc_vector(file_list, 2, count);
Denis Vlasenko20273132008-06-21 22:10:52 +00001165 file_list[count++] = line;
Denis Vlasenko27842282008-08-04 13:20:36 +00001166 /*file_list[count] = NULL; - xrealloc_vector did it */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001167 }
1168 fclose(list_stream);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001169
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001170 return file_list;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001171}
1172
1173/* maybe i should try and hook this into remove_file.c somehow */
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001174static int remove_file_array(char **remove_names, char **exclude_names)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001175{
1176 struct stat path_stat;
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001177 int remove_flag = 1; /* not removed anything yet */
1178 int i, j;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001179
1180 if (remove_names == NULL) {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001181 return 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001182 }
1183 for (i = 0; remove_names[i] != NULL; i++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001184 if (exclude_names != NULL) {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001185 for (j = 0; exclude_names[j] != NULL; j++) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001186 if (strcmp(remove_names[i], exclude_names[j]) == 0) {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001187 goto skip;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001188 }
1189 }
1190 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001191 /* TODO: why we are checking lstat? we can just try rm/rmdir */
1192 if (lstat(remove_names[i], &path_stat) < 0) {
1193 continue;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001194 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001195 if (S_ISDIR(path_stat.st_mode)) {
1196 remove_flag &= rmdir(remove_names[i]); /* 0 if no error */
1197 } else {
1198 remove_flag &= unlink(remove_names[i]); /* 0 if no error */
1199 }
1200 skip:
1201 continue;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001202 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001203 return (remove_flag == 0);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001204}
1205
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001206static void run_package_script_or_die(const char *package_name, const char *script_type)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001207{
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001208 char *script_path;
1209 int result;
1210
Rob Landleyd921b2e2006-08-03 15:41:12 +00001211 script_path = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, script_type);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001212
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001213 /* If the file doesnt exist is isnt fatal */
1214 result = access(script_path, F_OK) ? EXIT_SUCCESS : system(script_path);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001215 free(script_path);
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001216 if (result)
1217 bb_error_msg_and_die("%s failed, exit code %d", script_type, result);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001218}
1219
Denis Vlasenkod235f582008-06-21 22:46:58 +00001220/*
1221The policy manual defines what scripts get called when and with
1222what arguments. I realize that busybox does not support all of
1223these scenarios, but it does support some of them; it does not,
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001224however, run them with any parameters in run_package_script_or_die().
Denis Vlasenkod235f582008-06-21 22:46:58 +00001225Here are the scripts:
1226
1227preinst install
1228preinst install <old_version>
1229preinst upgrade <old_version>
1230preinst abort_upgrade <new_version>
1231postinst configure <most_recent_version>
1232postinst abort-upgade <new_version>
1233postinst abort-remove
1234postinst abort-remove in-favour <package> <version>
1235postinst abort-deconfigure in-favor <failed_install_package> removing <conflicting_package> <version>
1236prerm remove
1237prerm upgrade <new_version>
1238prerm failed-upgrade <old_version>
1239prerm remove in-favor <package> <new_version>
1240prerm deconfigure in-favour <package> <version> removing <package> <version>
1241postrm remove
1242postrm purge
1243postrm upgrade <new_version>
1244postrm failed-upgrade <old_version>
1245postrm abort-install
1246postrm abort-install <old_version>
1247postrm abort-upgrade <old_version>
1248postrm disappear <overwriter> <version>
1249*/
Denis Vlasenko6ca409e2007-08-12 20:58:27 +00001250static const char *const all_control_files[] = {
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001251 "preinst", "postinst", "prerm", "postrm",
1252 "list", "md5sums", "shlibs", "conffiles",
Denis Vlasenkod235f582008-06-21 22:46:58 +00001253 "config", "templates"
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001254};
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001255
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001256static char **all_control_list(const char *package_name)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001257{
Denis Vlasenko54928842006-09-28 22:35:42 +00001258 unsigned i = 0;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001259 char **remove_files;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001260
1261 /* Create a list of all /var/lib/dpkg/info/<package> files */
Denis Vlasenkod235f582008-06-21 22:46:58 +00001262 remove_files = xzalloc(sizeof(all_control_files) + sizeof(char*));
1263 while (i < ARRAY_SIZE(all_control_files)) {
1264 remove_files[i] = xasprintf("/var/lib/dpkg/info/%s.%s",
1265 package_name, all_control_files[i]);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001266 i++;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001267 }
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001268
Denis Vlasenko54928842006-09-28 22:35:42 +00001269 return remove_files;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001270}
1271
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001272static void free_array(char **array)
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001273{
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001274 if (array) {
Denis Vlasenko54928842006-09-28 22:35:42 +00001275 unsigned i = 0;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001276 while (array[i]) {
1277 free(array[i]);
1278 i++;
1279 }
1280 free(array);
1281 }
1282}
Glenn L McGrathe7386612001-09-21 04:30:51 +00001283
1284/* This function lists information on the installed packages. It loops through
1285 * the status_hashtable to retrieve the info. This results in smaller code than
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001286 * scanning the status file. The resulting list, however, is unsorted.
Glenn L McGrathe7386612001-09-21 04:30:51 +00001287 */
Bernhard Reutner-Fischer97516fc2008-09-25 12:18:49 +00001288static void list_packages(const char *pattern)
Glenn L McGrathe7386612001-09-21 04:30:51 +00001289{
Tim Rikerc1ef7bd2006-01-25 00:08:53 +00001290 int i;
Glenn L McGrathe7386612001-09-21 04:30:51 +00001291
Denis Vlasenko57308af2006-09-28 22:34:46 +00001292 puts(" Name Version");
1293 puts("+++-==============-==============");
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001294
Glenn L McGrathe7386612001-09-21 04:30:51 +00001295 /* go through status hash, dereference package hash and finally strings */
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001296 for (i = 0; i < STATUS_HASH_PRIME+1; i++) {
Denis Vlasenko9213a9e2006-09-17 16:28:10 +00001297 if (status_hashtable[i]) {
1298 const char *stat_str; /* status string */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001299 const char *name_str; /* package name */
1300 const char *vers_str; /* version */
1301 char s1, s2; /* status abbreviations */
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001302 int spccnt; /* space count */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001303 int j;
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001304
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001305 stat_str = name_hashtable[status_hashtable[i]->status];
1306 name_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->name];
1307 vers_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->version];
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001308
Bernhard Reutner-Fischer97516fc2008-09-25 12:18:49 +00001309 if (pattern && fnmatch(pattern, name_str, 0))
1310 continue;
1311
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001312 /* get abbreviation for status field 1 */
1313 s1 = stat_str[0] == 'i' ? 'i' : 'r';
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001314
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001315 /* get abbreviation for status field 2 */
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001316 for (j = 0, spccnt = 0; stat_str[j] && spccnt < 2; j++) {
Denis Vlasenko9213a9e2006-09-17 16:28:10 +00001317 if (stat_str[j] == ' ') spccnt++;
Glenn L McGrathe7386612001-09-21 04:30:51 +00001318 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001319 s2 = stat_str[j];
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001320
Glenn L McGrathe7386612001-09-21 04:30:51 +00001321 /* print out the line formatted like Debian dpkg */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001322 printf("%c%c %-14s %s\n", s1, s2, name_str, vers_str);
Glenn L McGrathe7386612001-09-21 04:30:51 +00001323 }
Denis Vlasenko334fa9b2007-04-13 23:22:58 +00001324 }
Glenn L McGrathe7386612001-09-21 04:30:51 +00001325}
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001326
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001327static void remove_package(const unsigned package_num, int noisy)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001328{
1329 const char *package_name = name_hashtable[package_hashtable[package_num]->name];
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001330 const char *package_version = name_hashtable[package_hashtable[package_num]->version];
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001331 const unsigned status_num = search_status_hashtable(package_name);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001332 const int package_name_length = strlen(package_name);
1333 char **remove_files;
1334 char **exclude_files;
1335 char list_name[package_name_length + 25];
1336 char conffile_name[package_name_length + 30];
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001337
Denis Vlasenko57308af2006-09-28 22:34:46 +00001338 if (noisy)
1339 printf("Removing %s (%s)...\n", package_name, package_version);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001340
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001341 /* Run prerm script */
1342 run_package_script_or_die(package_name, "prerm");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001343
Eric Andersenaff114c2004-04-14 17:51:38 +00001344 /* Create a list of files to remove, and a separate list of those to keep */
Denis Vlasenkod235f582008-06-21 22:46:58 +00001345 sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001346 remove_files = create_list(list_name);
1347
Denis Vlasenkod235f582008-06-21 22:46:58 +00001348 sprintf(conffile_name, "/var/lib/dpkg/info/%s.%s", package_name, "conffiles");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001349 exclude_files = create_list(conffile_name);
1350
Denis Vlasenkoe1a0d482006-10-20 13:28:22 +00001351 /* Some directories can't be removed straight away, so do multiple passes */
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001352 while (remove_file_array(remove_files, exclude_files))
1353 continue;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001354 free_array(exclude_files);
1355 free_array(remove_files);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001356
Denys Vlasenkod1090c92009-07-25 11:52:32 +02001357 /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep */
1358 exclude_files = xzalloc(sizeof(exclude_files[0]) * 3);
Rob Landleyd921b2e2006-08-03 15:41:12 +00001359 exclude_files[0] = xstrdup(conffile_name);
Denis Vlasenkod235f582008-06-21 22:46:58 +00001360 exclude_files[1] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "postrm");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001361
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001362 /* Create a list of all /var/lib/dpkg/info/<package> files */
1363 remove_files = all_control_list(package_name);
1364
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001365 remove_file_array(remove_files, exclude_files);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001366 free_array(remove_files);
1367 free_array(exclude_files);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001368
Bernhard Reutner-Fischerf0d60682008-06-05 12:18:42 +00001369 /* rename <package>.conffiles to <package>.list
1370 * The conffiles control file isn't required in Debian packages, so don't
1371 * error out if it's missing. */
1372 rename(conffile_name, list_name);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001373
1374 /* Change package status */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001375 set_status(status_num, "config-files", 3);
1376}
1377
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001378static void purge_package(const unsigned package_num)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001379{
1380 const char *package_name = name_hashtable[package_hashtable[package_num]->name];
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001381 const char *package_version = name_hashtable[package_hashtable[package_num]->version];
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001382 const unsigned status_num = search_status_hashtable(package_name);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001383 char **remove_files;
1384 char **exclude_files;
1385 char list_name[strlen(package_name) + 25];
1386
Denis Vlasenko57308af2006-09-28 22:34:46 +00001387 printf("Purging %s (%s)...\n", package_name, package_version);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001388
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001389 /* Run prerm script */
1390 run_package_script_or_die(package_name, "prerm");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001391
1392 /* Create a list of files to remove */
Denis Vlasenkod235f582008-06-21 22:46:58 +00001393 sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001394 remove_files = create_list(list_name);
1395
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001396 /* Some directories cant be removed straight away, so do multiple passes */
Denys Vlasenkod1090c92009-07-25 11:52:32 +02001397 while (remove_file_array(remove_files, NULL))
1398 continue;
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001399 free_array(remove_files);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001400
1401 /* Create a list of all /var/lib/dpkg/info/<package> files */
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001402 remove_files = all_control_list(package_name);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001403
Denys Vlasenkod1090c92009-07-25 11:52:32 +02001404 /* Delete all of them except the postrm script */
1405 exclude_files = xzalloc(sizeof(exclude_files[0]) * 2);
1406 exclude_files[0] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "postrm");
1407 remove_file_array(remove_files, exclude_files);
1408 free_array(exclude_files);
1409
1410 /* Run and remove postrm script */
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001411 run_package_script_or_die(package_name, "postrm");
Denys Vlasenkod1090c92009-07-25 11:52:32 +02001412 remove_file_array(remove_files, NULL);
1413
1414 free_array(remove_files);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001415
1416 /* Change package status */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001417 set_status(status_num, "not-installed", 3);
1418}
1419
Glenn L McGrath747381c2002-11-06 22:54:41 +00001420static archive_handle_t *init_archive_deb_ar(const char *filename)
Glenn L McGrath61b79042002-10-19 10:40:55 +00001421{
Glenn L McGrath747381c2002-11-06 22:54:41 +00001422 archive_handle_t *ar_handle;
Glenn L McGrath61b79042002-10-19 10:40:55 +00001423
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001424 /* Setup an ar archive handle that refers to the gzip sub archive */
Glenn L McGrath747381c2002-11-06 22:54:41 +00001425 ar_handle = init_handle();
1426 ar_handle->filter = filter_accept_list_reassign;
Rob Landleyd921b2e2006-08-03 15:41:12 +00001427 ar_handle->src_fd = xopen(filename, O_RDONLY);
Glenn L McGrath61b79042002-10-19 10:40:55 +00001428
Denis Vlasenko54928842006-09-28 22:35:42 +00001429 return ar_handle;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001430}
Glenn L McGrath61b79042002-10-19 10:40:55 +00001431
Glenn L McGrath747381c2002-11-06 22:54:41 +00001432static void init_archive_deb_control(archive_handle_t *ar_handle)
1433{
1434 archive_handle_t *tar_handle;
1435
1436 /* Setup the tar archive handle */
1437 tar_handle = init_handle();
Glenn L McGrath747381c2002-11-06 22:54:41 +00001438 tar_handle->src_fd = ar_handle->src_fd;
1439
Eric Andersenaff114c2004-04-14 17:51:38 +00001440 /* We don't care about data.tar.* or debian-binary, just control.tar.* */
Denis Vlasenkoe9ad84d2008-08-05 13:10:34 +00001441#if ENABLE_FEATURE_SEAMLESS_GZ
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001442 llist_add_to(&(ar_handle->accept), (char*)"control.tar.gz");
Glenn L McGrath747381c2002-11-06 22:54:41 +00001443#endif
Denis Vlasenkoe9ad84d2008-08-05 13:10:34 +00001444#if ENABLE_FEATURE_SEAMLESS_BZ2
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001445 llist_add_to(&(ar_handle->accept), (char*)"control.tar.bz2");
Glenn L McGrath747381c2002-11-06 22:54:41 +00001446#endif
1447
1448 /* Assign the tar handle as a subarchive of the ar handle */
1449 ar_handle->sub_archive = tar_handle;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001450}
1451
1452static void init_archive_deb_data(archive_handle_t *ar_handle)
1453{
1454 archive_handle_t *tar_handle;
1455
1456 /* Setup the tar archive handle */
1457 tar_handle = init_handle();
Glenn L McGrath747381c2002-11-06 22:54:41 +00001458 tar_handle->src_fd = ar_handle->src_fd;
1459
Eric Andersenaff114c2004-04-14 17:51:38 +00001460 /* We don't care about control.tar.* or debian-binary, just data.tar.* */
Denis Vlasenkoe9ad84d2008-08-05 13:10:34 +00001461#if ENABLE_FEATURE_SEAMLESS_GZ
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001462 llist_add_to(&(ar_handle->accept), (char*)"data.tar.gz");
Glenn L McGrath747381c2002-11-06 22:54:41 +00001463#endif
Denis Vlasenkoe9ad84d2008-08-05 13:10:34 +00001464#if ENABLE_FEATURE_SEAMLESS_BZ2
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001465 llist_add_to(&(ar_handle->accept), (char*)"data.tar.bz2");
Glenn L McGrath747381c2002-11-06 22:54:41 +00001466#endif
1467
1468 /* Assign the tar handle as a subarchive of the ar handle */
1469 ar_handle->sub_archive = tar_handle;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001470}
1471
Eric Andersen1393a392003-09-15 08:06:15 +00001472static char *deb_extract_control_file_to_buffer(archive_handle_t *ar_handle, llist_t *myaccept)
Glenn L McGrath747381c2002-11-06 22:54:41 +00001473{
1474 ar_handle->sub_archive->action_data = data_extract_to_buffer;
Eric Andersen1393a392003-09-15 08:06:15 +00001475 ar_handle->sub_archive->accept = myaccept;
Paul Fox37dd6242005-07-22 13:17:41 +00001476 ar_handle->sub_archive->filter = filter_accept_list;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001477
1478 unpack_ar_archive(ar_handle);
1479 close(ar_handle->src_fd);
1480
Denis Vlasenko54928842006-09-28 22:35:42 +00001481 return ar_handle->sub_archive->buffer;
Glenn L McGrath61b79042002-10-19 10:40:55 +00001482}
1483
Denis Vlasenkodefc1ea2008-06-27 02:52:20 +00001484static void FAST_FUNC data_extract_all_prefix(archive_handle_t *archive_handle)
Glenn L McGrath6ab32eb2002-11-03 11:57:10 +00001485{
1486 char *name_ptr = archive_handle->file_header->name;
1487
1488 name_ptr += strspn(name_ptr, "./");
1489 if (name_ptr[0] != '\0') {
Rob Landleyd921b2e2006-08-03 15:41:12 +00001490 archive_handle->file_header->name = xasprintf("%s%s", archive_handle->buffer, name_ptr);
Glenn L McGrath6ab32eb2002-11-03 11:57:10 +00001491 data_extract_all(archive_handle);
1492 }
Glenn L McGrath6ab32eb2002-11-03 11:57:10 +00001493}
1494
1495static void unpack_package(deb_file_t *deb_file)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001496{
1497 const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001498 const unsigned status_num = search_status_hashtable(package_name);
1499 const unsigned status_package_num = status_hashtable[status_num]->package;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001500 char *info_prefix;
Denis Vlasenko1da6a212006-09-03 16:33:58 +00001501 char *list_filename;
Glenn L McGrath61b79042002-10-19 10:40:55 +00001502 archive_handle_t *archive_handle;
1503 FILE *out_stream;
Denis Vlasenkod235f582008-06-21 22:46:58 +00001504 llist_t *accept_list;
1505 int i;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001506
1507 /* If existing version, remove it first */
1508 if (strcmp(name_hashtable[get_status(status_num, 3)], "installed") == 0) {
1509 /* Package is already installed, remove old version first */
Denis Vlasenko57308af2006-09-28 22:34:46 +00001510 printf("Preparing to replace %s %s (using %s)...\n", package_name,
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001511 name_hashtable[package_hashtable[status_package_num]->version],
1512 deb_file->filename);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001513 remove_package(status_package_num, 0);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001514 } else {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001515 printf("Unpacking %s (from %s)...\n", package_name, deb_file->filename);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001516 }
1517
1518 /* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */
Denis Vlasenkod235f582008-06-21 22:46:58 +00001519 info_prefix = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "");
Glenn L McGrath747381c2002-11-06 22:54:41 +00001520 archive_handle = init_archive_deb_ar(deb_file->filename);
1521 init_archive_deb_control(archive_handle);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001522
Denis Vlasenkod235f582008-06-21 22:46:58 +00001523 accept_list = NULL;
1524 i = 0;
1525 while (i < ARRAY_SIZE(all_control_files)) {
Rob Landleyd921b2e2006-08-03 15:41:12 +00001526 char *c = xasprintf("./%s", all_control_files[i]);
Rob Landley8bb50782006-05-26 23:44:51 +00001527 llist_add_to(&accept_list, c);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001528 i++;
1529 }
1530 archive_handle->sub_archive->accept = accept_list;
1531 archive_handle->sub_archive->filter = filter_accept_list;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001532 archive_handle->sub_archive->action_data = data_extract_all_prefix;
1533 archive_handle->sub_archive->buffer = info_prefix;
Denys Vlasenkod57d6262009-09-17 02:43:14 +02001534 archive_handle->sub_archive->ah_flags |= ARCHIVE_UNLINK_OLD;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001535 unpack_ar_archive(archive_handle);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001536
1537 /* Run the preinst prior to extracting */
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001538 run_package_script_or_die(package_name, "preinst");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001539
1540 /* Extract data.tar.gz to the root directory */
Glenn L McGrath747381c2002-11-06 22:54:41 +00001541 archive_handle = init_archive_deb_ar(deb_file->filename);
1542 init_archive_deb_data(archive_handle);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001543 archive_handle->sub_archive->action_data = data_extract_all_prefix;
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001544 archive_handle->sub_archive->buffer = (char*)"/"; /* huh? */
Denys Vlasenkod57d6262009-09-17 02:43:14 +02001545 archive_handle->sub_archive->ah_flags |= ARCHIVE_UNLINK_OLD;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001546 unpack_ar_archive(archive_handle);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001547
1548 /* Create the list file */
Denis Vlasenkod235f582008-06-21 22:46:58 +00001549 list_filename = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "list");
Denis Vlasenko5415c852008-07-21 23:05:26 +00001550 out_stream = xfopen_for_write(list_filename);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001551 while (archive_handle->sub_archive->passed) {
1552 /* the leading . has been stripped by data_extract_all_prefix already */
1553 fputs(archive_handle->sub_archive->passed->data, out_stream);
Glenn L McGrath61b79042002-10-19 10:40:55 +00001554 fputc('\n', out_stream);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001555 archive_handle->sub_archive->passed = archive_handle->sub_archive->passed->link;
Glenn L McGrath61b79042002-10-19 10:40:55 +00001556 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001557 fclose(out_stream);
1558
1559 /* change status */
1560 set_status(status_num, "install", 1);
1561 set_status(status_num, "unpacked", 3);
1562
1563 free(info_prefix);
Denis Vlasenko1da6a212006-09-03 16:33:58 +00001564 free(list_filename);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001565}
1566
Eric Andersen14f5c8d2005-04-16 19:39:00 +00001567static void configure_package(deb_file_t *deb_file)
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001568{
1569 const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
1570 const char *package_version = name_hashtable[package_hashtable[deb_file->package]->version];
1571 const int status_num = search_status_hashtable(package_name);
1572
Denis Vlasenko57308af2006-09-28 22:34:46 +00001573 printf("Setting up %s (%s)...\n", package_name, package_version);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001574
1575 /* Run the postinst script */
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001576 /* TODO: handle failure gracefully */
1577 run_package_script_or_die(package_name, "postinst");
1578
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001579 /* Change status to reflect success */
1580 set_status(status_num, "install", 1);
1581 set_status(status_num, "installed", 3);
1582}
Glenn L McGrathc9005752001-02-10 02:05:24 +00001583
Denis Vlasenko9b49a5e2007-10-11 10:05:36 +00001584int dpkg_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
Denis Vlasenkoa60f84e2008-07-05 09:18:54 +00001585int dpkg_main(int argc UNUSED_PARAM, char **argv)
Glenn L McGrathc9005752001-02-10 02:05:24 +00001586{
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001587 deb_file_t **deb_file = NULL;
1588 status_node_t *status_node;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001589 char *str_f;
Matt Kraaiefd7f032001-11-19 21:07:15 +00001590 int opt;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001591 int package_num;
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001592 int deb_count = 0;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001593 int state_status;
1594 int status_num;
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001595 int i;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001596 enum {
1597 OPT_configure = 0x1,
1598 OPT_force_ignore_depends = 0x2,
1599 OPT_install = 0x4,
1600 OPT_list_installed = 0x8,
1601 OPT_purge = 0x10,
1602 OPT_remove = 0x20,
1603 OPT_unpack = 0x40,
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001604 };
1605
Denis Vlasenkoc87339d2008-06-21 23:15:43 +00001606 INIT_G();
1607
Denis Vlasenkofe7cd642007-08-18 15:32:12 +00001608 opt = getopt32(argv, "CF:ilPru", &str_f);
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001609 //if (opt & OPT_configure) ... // -C
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001610 if (opt & OPT_force_ignore_depends) { // -F (--force in official dpkg)
1611 if (strcmp(str_f, "depends"))
1612 opt &= ~OPT_force_ignore_depends;
1613 }
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001614 //if (opt & OPT_install) ... // -i
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001615 //if (opt & OPT_list_installed) ... // -l
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001616 //if (opt & OPT_purge) ... // -P
1617 //if (opt & OPT_remove) ... // -r
1618 //if (opt & OPT_unpack) ... // -u (--unpack in official dpkg)
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001619 argv += optind;
1620 /* check for non-option argument if expected */
Denis Vlasenkod235f582008-06-21 22:46:58 +00001621 if (!opt || (!argv[0] && !(opt && OPT_list_installed)))
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001622 bb_show_usage();
Glenn L McGrath0e757a22001-04-08 05:27:18 +00001623
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001624/* puts("(Reading database ... xxxxx files and directories installed.)"); */
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001625 index_status_file("/var/lib/dpkg/status");
1626
Glenn L McGrathe7386612001-09-21 04:30:51 +00001627 /* if the list action was given print the installed packages and exit */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001628 if (opt & OPT_list_installed) {
Bernhard Reutner-Fischer97516fc2008-09-25 12:18:49 +00001629 list_packages(argv[0]);
Denis Vlasenko54928842006-09-28 22:35:42 +00001630 return EXIT_SUCCESS;
Glenn L McGrathe7386612001-09-21 04:30:51 +00001631 }
Eric Andersenc7bda1c2004-03-15 08:29:22 +00001632
Glenn L McGrath0d2fb762001-10-25 14:26:05 +00001633 /* Read arguments and store relevant info in structs */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001634 while (*argv) {
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001635 /* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */
Denis Vlasenkodeeed592008-07-08 05:14:36 +00001636 deb_file = xrealloc_vector(deb_file, 2, deb_count);
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001637 deb_file[deb_count] = xzalloc(sizeof(deb_file[0][0]));
1638 if (opt & (OPT_install | OPT_unpack)) {
1639 /* -i/-u: require filename */
Glenn L McGrath61b79042002-10-19 10:40:55 +00001640 archive_handle_t *archive_handle;
Glenn L McGrath66125c82002-12-08 00:54:33 +00001641 llist_t *control_list = NULL;
Glenn L McGrathd8d11912002-11-05 13:56:04 +00001642
Glenn L McGrath747381c2002-11-06 22:54:41 +00001643 /* Extract the control file */
Denis Vlasenkob6aae0f2007-01-29 22:51:25 +00001644 llist_add_to(&control_list, (char*)"./control");
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001645 archive_handle = init_archive_deb_ar(argv[0]);
Glenn L McGrath747381c2002-11-06 22:54:41 +00001646 init_archive_deb_control(archive_handle);
1647 deb_file[deb_count]->control_file = deb_extract_control_file_to_buffer(archive_handle, control_list);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001648 if (deb_file[deb_count]->control_file == NULL) {
Denys Vlasenko6331cf02009-11-13 09:08:27 +01001649 bb_error_msg_and_die("can't extract control file");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001650 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001651 deb_file[deb_count]->filename = xstrdup(argv[0]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001652 package_num = fill_package_struct(deb_file[deb_count]->control_file);
Glenn L McGrath0d2fb762001-10-25 14:26:05 +00001653
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001654 if (package_num == -1) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001655 bb_error_msg("invalid control file in %s", argv[0]);
1656 argv++;
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001657 continue;
1658 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001659 deb_file[deb_count]->package = (unsigned) package_num;
Glenn L McGrath747381c2002-11-06 22:54:41 +00001660
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001661 /* Add the package to the status hashtable */
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001662 if (opt & (OPT_unpack | OPT_install)) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001663 /* Try and find a currently installed version of this package */
1664 status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
1665 /* If no previous entry was found initialise a new entry */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001666 if (status_hashtable[status_num] == NULL
1667 || status_hashtable[status_num]->status == 0
1668 ) {
Denis Vlasenkob95636c2006-12-19 23:36:04 +00001669 status_node = xmalloc(sizeof(status_node_t));
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001670 status_node->package = deb_file[deb_count]->package;
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001671 /* reinstreq isnt changed to "ok" until the package control info
1672 * is written to the status file*/
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001673 status_node->status = search_name_hashtable("install reinstreq not-installed");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001674 status_hashtable[status_num] = status_node;
1675 } else {
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001676 set_status(status_num, "install", 1);
1677 set_status(status_num, "reinstreq", 2);
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001678 }
1679 }
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001680 } else if (opt & (OPT_configure | OPT_purge | OPT_remove)) {
1681 /* -C/-p/-r: require package name */
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001682 deb_file[deb_count]->package = search_package_hashtable(
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001683 search_name_hashtable(argv[0]),
1684 search_name_hashtable("ANY"), VER_ANY);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001685 if (package_hashtable[deb_file[deb_count]->package] == NULL) {
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001686 bb_error_msg_and_die("package %s is uninstalled or unknown", argv[0]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001687 }
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001688 package_num = deb_file[deb_count]->package;
1689 status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
1690 state_status = get_status(status_num, 3);
Glenn L McGrath0d2fb762001-10-25 14:26:05 +00001691
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001692 /* check package status is "installed" */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001693 if (opt & OPT_remove) {
1694 if (strcmp(name_hashtable[state_status], "not-installed") == 0
1695 || strcmp(name_hashtable[state_status], "config-files") == 0
1696 ) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001697 bb_error_msg_and_die("%s is already removed", name_hashtable[package_hashtable[package_num]->name]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001698 }
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001699 set_status(status_num, "deinstall", 1);
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001700 } else if (opt & OPT_purge) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001701 /* if package status is "conf-files" then its ok */
1702 if (strcmp(name_hashtable[state_status], "not-installed") == 0) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001703 bb_error_msg_and_die("%s is already purged", name_hashtable[package_hashtable[package_num]->name]);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001704 }
Glenn L McGrathb8c3a542003-11-28 22:38:14 +00001705 set_status(status_num, "purge", 1);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001706 }
1707 }
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001708 deb_count++;
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001709 argv++;
Glenn L McGrath0e757a22001-04-08 05:27:18 +00001710 }
Denis Vlasenko7fd00cb2007-02-15 21:19:50 +00001711 if (!deb_count)
1712 bb_error_msg_and_die("no package files specified");
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001713 deb_file[deb_count] = NULL;
Glenn L McGrath0e757a22001-04-08 05:27:18 +00001714
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001715 /* Check that the deb file arguments are installable */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001716 if (!(opt & OPT_force_ignore_depends)) {
Denis Vlasenko68404f12008-03-17 09:00:54 +00001717 if (!check_deps(deb_file, 0 /*, deb_count*/)) {
Denis Vlasenko57308af2006-09-28 22:34:46 +00001718 bb_error_msg_and_die("dependency check failed");
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001719 }
Glenn L McGrath0d2fb762001-10-25 14:26:05 +00001720 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001721
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001722 /* TODO: install or remove packages in the correct dependency order */
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001723 for (i = 0; i < deb_count; i++) {
1724 /* Remove or purge packages */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001725 if (opt & OPT_remove) {
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001726 remove_package(deb_file[i]->package, 1);
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001727 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001728 else if (opt & OPT_purge) {
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001729 purge_package(deb_file[i]->package);
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001730 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001731 else if (opt & OPT_unpack) {
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001732 unpack_package(deb_file[i]);
1733 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001734 else if (opt & OPT_install) {
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001735 unpack_package(deb_file[i]);
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001736 /* package is configured in second pass below */
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001737 }
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001738 else if (opt & OPT_configure) {
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001739 configure_package(deb_file[i]);
1740 }
1741 }
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001742 /* configure installed packages */
Denis Vlasenkoa6df5902006-12-22 18:32:40 +00001743 if (opt & OPT_install) {
Glenn L McGrathfea4b442003-11-26 21:53:37 +00001744 for (i = 0; i < deb_count; i++)
1745 configure_package(deb_file[i]);
1746 }
Glenn L McGrathc3fbec72001-07-18 15:47:21 +00001747
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001748 write_status_file(deb_file);
1749
Denis Vlasenko57308af2006-09-28 22:34:46 +00001750 if (ENABLE_FEATURE_CLEAN_UP) {
1751 for (i = 0; i < deb_count; i++) {
1752 free(deb_file[i]->control_file);
1753 free(deb_file[i]->filename);
1754 free(deb_file[i]);
Glenn L McGratha94a06a2002-05-29 13:45:34 +00001755 }
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001756
Denis Vlasenko57308af2006-09-28 22:34:46 +00001757 free(deb_file);
1758
1759 for (i = 0; i < NAME_HASH_PRIME; i++) {
1760 free(name_hashtable[i]);
1761 }
1762
1763 for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
Denis Vlasenko88a2aa92007-03-19 21:48:56 +00001764 free_package(package_hashtable[i]);
Denis Vlasenko57308af2006-09-28 22:34:46 +00001765 }
1766
1767 for (i = 0; i < STATUS_HASH_PRIME; i++) {
1768 free(status_hashtable[i]);
1769 }
1770
1771 free(status_hashtable);
1772 free(package_hashtable);
1773 free(name_hashtable);
Glenn L McGrathef0eab52001-10-25 14:49:48 +00001774 }
Glenn L McGrathccd65c92001-07-13 18:35:24 +00001775
Denis Vlasenko54928842006-09-28 22:35:42 +00001776 return EXIT_SUCCESS;
Eric Andersen67991cf2001-02-14 21:23:06 +00001777}