[1765] | 1 | /* vi: set sw=4 ts=4: */
|
---|
[821] | 2 | /*
|
---|
[1765] | 3 | * mini dpkg implementation for busybox.
|
---|
| 4 | * this is not meant as a replacement for dpkg
|
---|
[821] | 5 | *
|
---|
[1765] | 6 | * written by glenn mcgrath with the help of others
|
---|
| 7 | * copyright (c) 2001 by glenn mcgrath
|
---|
[821] | 8 | *
|
---|
[2725] | 9 | * parts of the version comparison code is plucked from the real dpkg
|
---|
| 10 | * application which is licensed GPLv2 and
|
---|
| 11 | * copyright (c) 1995 Ian Jackson <ian@chiark.greenend.org.uk>
|
---|
| 12 | *
|
---|
[1765] | 13 | * started life as a busybox implementation of udpkg
|
---|
[821] | 14 | *
|
---|
[2725] | 15 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
---|
[821] | 16 | */
|
---|
| 17 | /*
|
---|
[1765] | 18 | * known difference between busybox dpkg and the official dpkg that i don't
|
---|
[821] | 19 | * consider important, its worth keeping a note of differences anyway, just to
|
---|
| 20 | * make it easier to maintain.
|
---|
[1765] | 21 | * - the first value for the confflile: field isnt placed on a new line.
|
---|
| 22 | * - when installing a package the status: field is placed at the end of the
|
---|
| 23 | * section, rather than just after the package: field.
|
---|
[821] | 24 | *
|
---|
[1765] | 25 | * bugs that need to be fixed
|
---|
[821] | 26 | * - (unknown, please let me know when you find any)
|
---|
| 27 | */
|
---|
| 28 |
|
---|
[3621] | 29 | //config:config DPKG
|
---|
| 30 | //config: bool "dpkg"
|
---|
| 31 | //config: default n
|
---|
| 32 | //config: select FEATURE_SEAMLESS_GZ
|
---|
| 33 | //config: help
|
---|
| 34 | //config: dpkg is a medium-level tool to install, build, remove and manage
|
---|
| 35 | //config: Debian packages.
|
---|
| 36 | //config:
|
---|
| 37 | //config: This implementation of dpkg has a number of limitations,
|
---|
| 38 | //config: you should use the official dpkg if possible.
|
---|
| 39 |
|
---|
| 40 | //applet:IF_DPKG(APPLET(dpkg, BB_DIR_USR_BIN, BB_SUID_DROP))
|
---|
| 41 | //kbuild:lib-$(CONFIG_DPKG) += dpkg.o
|
---|
| 42 |
|
---|
[3232] | 43 | //usage:#define dpkg_trivial_usage
|
---|
| 44 | //usage: "[-ilCPru] [-F OPT] PACKAGE"
|
---|
| 45 | //usage:#define dpkg_full_usage "\n\n"
|
---|
| 46 | //usage: "Install, remove and manage Debian packages\n"
|
---|
| 47 | //usage: IF_LONG_OPTS(
|
---|
| 48 | //usage: "\n -i,--install Install the package"
|
---|
| 49 | //usage: "\n -l,--list List of installed packages"
|
---|
| 50 | //usage: "\n --configure Configure an unpackaged package"
|
---|
| 51 | //usage: "\n -P,--purge Purge all files of a package"
|
---|
| 52 | //usage: "\n -r,--remove Remove all but the configuration files for a package"
|
---|
| 53 | //usage: "\n --unpack Unpack a package, but don't configure it"
|
---|
| 54 | //usage: "\n --force-depends Ignore dependency problems"
|
---|
| 55 | //usage: "\n --force-confnew Overwrite existing config files when installing"
|
---|
| 56 | //usage: "\n --force-confold Keep old config files when installing"
|
---|
| 57 | //usage: )
|
---|
| 58 | //usage: IF_NOT_LONG_OPTS(
|
---|
| 59 | //usage: "\n -i Install the package"
|
---|
| 60 | //usage: "\n -l List of installed packages"
|
---|
| 61 | //usage: "\n -C Configure an unpackaged package"
|
---|
| 62 | //usage: "\n -P Purge all files of a package"
|
---|
| 63 | //usage: "\n -r Remove all but the configuration files for a package"
|
---|
| 64 | //usage: "\n -u Unpack a package, but don't configure it"
|
---|
| 65 | //usage: "\n -F depends Ignore dependency problems"
|
---|
| 66 | //usage: "\n -F confnew Overwrite existing config files when installing"
|
---|
| 67 | //usage: "\n -F confold Keep old config files when installing"
|
---|
| 68 | //usage: )
|
---|
| 69 |
|
---|
[1765] | 70 | #include "libbb.h"
|
---|
[2725] | 71 | #include <fnmatch.h>
|
---|
[3232] | 72 | #include "bb_archive.h"
|
---|
[821] | 73 |
|
---|
[1765] | 74 | /* note: if you vary hash_prime sizes be aware,
|
---|
| 75 | * 1) tweaking these will have a big effect on how much memory this program uses.
|
---|
| 76 | * 2) for computational efficiency these hash tables should be at least 20%
|
---|
[821] | 77 | * larger than the maximum number of elements stored in it.
|
---|
[1765] | 78 | * 3) all _hash_prime's must be a prime number or chaos is assured, if your looking
|
---|
[821] | 79 | * for a prime, try http://www.utm.edu/research/primes/lists/small/10000.txt
|
---|
[1765] | 80 | * 4) if you go bigger than 15 bits you may get into trouble (untested) as its
|
---|
| 81 | * sometimes cast to an unsigned, if you go to 16 bit you will overlap
|
---|
[821] | 82 | * int's and chaos is assured, 16381 is the max prime for 14 bit field
|
---|
| 83 | */
|
---|
| 84 |
|
---|
| 85 | /* NAME_HASH_PRIME, Stores package names and versions,
|
---|
| 86 | * I estimate it should be at least 50% bigger than PACKAGE_HASH_PRIME,
|
---|
| 87 | * as there a lot of duplicate version numbers */
|
---|
| 88 | #define NAME_HASH_PRIME 16381
|
---|
| 89 |
|
---|
| 90 | /* PACKAGE_HASH_PRIME, Maximum number of unique packages,
|
---|
| 91 | * It must not be smaller than STATUS_HASH_PRIME,
|
---|
| 92 | * Currently only packages from status_hashtable are stored in here, but in
|
---|
| 93 | * future this may be used to store packages not only from a status file,
|
---|
| 94 | * but an available_hashtable, and even multiple packages files.
|
---|
| 95 | * Package can be stored more than once if they have different versions.
|
---|
| 96 | * e.g. The same package may have different versions in the status file
|
---|
| 97 | * and available file */
|
---|
| 98 | #define PACKAGE_HASH_PRIME 10007
|
---|
| 99 | typedef struct edge_s {
|
---|
[1765] | 100 | unsigned operator:4; /* was:3 */
|
---|
| 101 | unsigned type:4;
|
---|
| 102 | unsigned name:16; /* was:14 */
|
---|
| 103 | unsigned version:16; /* was:14 */
|
---|
[821] | 104 | } edge_t;
|
---|
| 105 |
|
---|
| 106 | typedef struct common_node_s {
|
---|
[1765] | 107 | unsigned name:16; /* was:14 */
|
---|
| 108 | unsigned version:16; /* was:14 */
|
---|
| 109 | unsigned num_of_edges:16; /* was:14 */
|
---|
[821] | 110 | edge_t **edge;
|
---|
| 111 | } common_node_t;
|
---|
| 112 |
|
---|
| 113 | /* Currently it doesnt store packages that have state-status of not-installed
|
---|
| 114 | * So it only really has to be the size of the maximum number of packages
|
---|
| 115 | * likely to be installed at any one time, so there is a bit of leeway here */
|
---|
| 116 | #define STATUS_HASH_PRIME 8191
|
---|
| 117 | typedef struct status_node_s {
|
---|
[1765] | 118 | unsigned package:16; /* was:14 */ /* has to fit PACKAGE_HASH_PRIME */
|
---|
| 119 | unsigned status:16; /* was:14 */ /* has to fit STATUS_HASH_PRIME */
|
---|
[821] | 120 | } status_node_t;
|
---|
| 121 |
|
---|
[1765] | 122 |
|
---|
[2725] | 123 | /* Globals */
|
---|
| 124 | struct globals {
|
---|
| 125 | char *name_hashtable[NAME_HASH_PRIME + 1];
|
---|
| 126 | common_node_t *package_hashtable[PACKAGE_HASH_PRIME + 1];
|
---|
| 127 | status_node_t *status_hashtable[STATUS_HASH_PRIME + 1];
|
---|
| 128 | };
|
---|
| 129 | #define G (*ptr_to_globals)
|
---|
| 130 | #define name_hashtable (G.name_hashtable )
|
---|
| 131 | #define package_hashtable (G.package_hashtable)
|
---|
| 132 | #define status_hashtable (G.status_hashtable )
|
---|
| 133 | #define INIT_G() do { \
|
---|
| 134 | SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
|
---|
| 135 | } while (0)
|
---|
| 136 |
|
---|
| 137 |
|
---|
[821] | 138 | /* Even numbers are for 'extras', like ored dependencies or null */
|
---|
| 139 | enum edge_type_e {
|
---|
| 140 | EDGE_NULL = 0,
|
---|
| 141 | EDGE_PRE_DEPENDS = 1,
|
---|
| 142 | EDGE_OR_PRE_DEPENDS = 2,
|
---|
| 143 | EDGE_DEPENDS = 3,
|
---|
| 144 | EDGE_OR_DEPENDS = 4,
|
---|
| 145 | EDGE_REPLACES = 5,
|
---|
| 146 | EDGE_PROVIDES = 7,
|
---|
| 147 | EDGE_CONFLICTS = 9,
|
---|
| 148 | EDGE_SUGGESTS = 11,
|
---|
| 149 | EDGE_RECOMMENDS = 13,
|
---|
| 150 | EDGE_ENHANCES = 15
|
---|
| 151 | };
|
---|
| 152 | enum operator_e {
|
---|
| 153 | VER_NULL = 0,
|
---|
| 154 | VER_EQUAL = 1,
|
---|
| 155 | VER_LESS = 2,
|
---|
| 156 | VER_LESS_EQUAL = 3,
|
---|
| 157 | VER_MORE = 4,
|
---|
| 158 | VER_MORE_EQUAL = 5,
|
---|
| 159 | VER_ANY = 6
|
---|
| 160 | };
|
---|
| 161 |
|
---|
| 162 | typedef struct deb_file_s {
|
---|
| 163 | char *control_file;
|
---|
| 164 | char *filename;
|
---|
[1765] | 165 | unsigned package:16; /* was:14 */
|
---|
[821] | 166 | } deb_file_t;
|
---|
| 167 |
|
---|
| 168 |
|
---|
[1765] | 169 | static void make_hash(const char *key, unsigned *start, unsigned *decrement, const int hash_prime)
|
---|
[821] | 170 | {
|
---|
[1765] | 171 | unsigned long hash_num = key[0];
|
---|
[821] | 172 | int len = strlen(key);
|
---|
| 173 | int i;
|
---|
| 174 |
|
---|
| 175 | /* Maybe i should have uses a "proper" hashing algorithm here instead
|
---|
| 176 | * of making one up myself, seems to be working ok though. */
|
---|
[1765] | 177 | for (i = 1; i < len; i++) {
|
---|
[821] | 178 | /* shifts the ascii based value and adds it to previous value
|
---|
| 179 | * shift amount is mod 24 because long int is 32 bit and data
|
---|
| 180 | * to be shifted is 8, don't want to shift data to where it has
|
---|
[2725] | 181 | * no effect */
|
---|
| 182 | hash_num += (key[i] + key[i-1]) << ((key[i] * i) % 24);
|
---|
[821] | 183 | }
|
---|
[1765] | 184 | *start = (unsigned) hash_num % hash_prime;
|
---|
| 185 | *decrement = (unsigned) 1 + (hash_num % (hash_prime - 1));
|
---|
[821] | 186 | }
|
---|
| 187 |
|
---|
| 188 | /* this adds the key to the hash table */
|
---|
| 189 | static int search_name_hashtable(const char *key)
|
---|
| 190 | {
|
---|
[2725] | 191 | unsigned probe_address;
|
---|
| 192 | unsigned probe_decrement;
|
---|
[821] | 193 |
|
---|
| 194 | make_hash(key, &probe_address, &probe_decrement, NAME_HASH_PRIME);
|
---|
[1765] | 195 | while (name_hashtable[probe_address] != NULL) {
|
---|
[821] | 196 | if (strcmp(name_hashtable[probe_address], key) == 0) {
|
---|
[1765] | 197 | return probe_address;
|
---|
[821] | 198 | }
|
---|
[1765] | 199 | probe_address -= probe_decrement;
|
---|
| 200 | if ((int)probe_address < 0) {
|
---|
| 201 | probe_address += NAME_HASH_PRIME;
|
---|
| 202 | }
|
---|
[821] | 203 | }
|
---|
[1765] | 204 | name_hashtable[probe_address] = xstrdup(key);
|
---|
| 205 | return probe_address;
|
---|
[821] | 206 | }
|
---|
| 207 |
|
---|
| 208 | /* this DOESNT add the key to the hashtable
|
---|
| 209 | * TODO make it consistent with search_name_hashtable
|
---|
| 210 | */
|
---|
[1765] | 211 | static unsigned search_status_hashtable(const char *key)
|
---|
[821] | 212 | {
|
---|
[2725] | 213 | unsigned probe_address;
|
---|
| 214 | unsigned probe_decrement;
|
---|
[821] | 215 |
|
---|
| 216 | make_hash(key, &probe_address, &probe_decrement, STATUS_HASH_PRIME);
|
---|
[1765] | 217 | while (status_hashtable[probe_address] != NULL) {
|
---|
[821] | 218 | if (strcmp(key, name_hashtable[package_hashtable[status_hashtable[probe_address]->package]->name]) == 0) {
|
---|
| 219 | break;
|
---|
| 220 | }
|
---|
[1765] | 221 | probe_address -= probe_decrement;
|
---|
| 222 | if ((int)probe_address < 0) {
|
---|
| 223 | probe_address += STATUS_HASH_PRIME;
|
---|
| 224 | }
|
---|
[821] | 225 | }
|
---|
[1765] | 226 | return probe_address;
|
---|
[821] | 227 | }
|
---|
| 228 |
|
---|
[2725] | 229 | static int order(char x)
|
---|
[821] | 230 | {
|
---|
[2725] | 231 | return (x == '~' ? -1
|
---|
| 232 | : x == '\0' ? 0
|
---|
| 233 | : isdigit(x) ? 0
|
---|
| 234 | : isalpha(x) ? x
|
---|
| 235 | : (unsigned char)x + 256
|
---|
| 236 | );
|
---|
| 237 | }
|
---|
[821] | 238 |
|
---|
[2725] | 239 | /* This code is taken from dpkg and modified slightly to work with busybox */
|
---|
| 240 | static int version_compare_part(const char *val, const char *ref)
|
---|
| 241 | {
|
---|
| 242 | if (!val) val = "";
|
---|
| 243 | if (!ref) ref = "";
|
---|
[821] | 244 |
|
---|
[2725] | 245 | while (*val || *ref) {
|
---|
| 246 | int first_diff;
|
---|
| 247 |
|
---|
| 248 | while ((*val && !isdigit(*val)) || (*ref && !isdigit(*ref))) {
|
---|
| 249 | int vc = order(*val);
|
---|
| 250 | int rc = order(*ref);
|
---|
| 251 | if (vc != rc)
|
---|
| 252 | return vc - rc;
|
---|
| 253 | val++;
|
---|
| 254 | ref++;
|
---|
[821] | 255 | }
|
---|
| 256 |
|
---|
[2725] | 257 | while (*val == '0')
|
---|
| 258 | val++;
|
---|
| 259 | while (*ref == '0')
|
---|
| 260 | ref++;
|
---|
| 261 |
|
---|
| 262 | first_diff = 0;
|
---|
| 263 | while (isdigit(*val) && isdigit(*ref)) {
|
---|
| 264 | if (first_diff == 0)
|
---|
| 265 | first_diff = *val - *ref;
|
---|
| 266 | val++;
|
---|
| 267 | ref++;
|
---|
[821] | 268 | }
|
---|
[2725] | 269 | if (isdigit(*val))
|
---|
[1765] | 270 | return 1;
|
---|
[2725] | 271 | if (isdigit(*ref))
|
---|
| 272 | return -1;
|
---|
| 273 | if (first_diff)
|
---|
| 274 | return first_diff;
|
---|
[821] | 275 | }
|
---|
[1765] | 276 | return 0;
|
---|
[821] | 277 | }
|
---|
| 278 |
|
---|
| 279 | /* if ver1 < ver2 return -1,
|
---|
| 280 | * if ver1 = ver2 return 0,
|
---|
| 281 | * if ver1 > ver2 return 1,
|
---|
| 282 | */
|
---|
[1765] | 283 | static int version_compare(const unsigned ver1, const unsigned ver2)
|
---|
[821] | 284 | {
|
---|
| 285 | char *ch_ver1 = name_hashtable[ver1];
|
---|
| 286 | char *ch_ver2 = name_hashtable[ver2];
|
---|
[2725] | 287 | unsigned epoch1 = 0, epoch2 = 0;
|
---|
| 288 | char *colon;
|
---|
[821] | 289 | char *deb_ver1, *deb_ver2;
|
---|
| 290 | char *upstream_ver1;
|
---|
| 291 | char *upstream_ver2;
|
---|
| 292 | int result;
|
---|
| 293 |
|
---|
| 294 | /* Compare epoch */
|
---|
[2725] | 295 | colon = strchr(ch_ver1, ':');
|
---|
| 296 | if (colon) {
|
---|
| 297 | epoch1 = atoi(ch_ver1);
|
---|
| 298 | ch_ver1 = colon + 1;
|
---|
[821] | 299 | }
|
---|
[2725] | 300 | colon = strchr(ch_ver2, ':');
|
---|
| 301 | if (colon) {
|
---|
| 302 | epoch2 = atoi(ch_ver2);
|
---|
| 303 | ch_ver2 = colon + 1;
|
---|
[821] | 304 | }
|
---|
| 305 | if (epoch1 < epoch2) {
|
---|
[1765] | 306 | return -1;
|
---|
[821] | 307 | }
|
---|
[2725] | 308 | if (epoch1 > epoch2) {
|
---|
[1765] | 309 | return 1;
|
---|
[821] | 310 | }
|
---|
| 311 |
|
---|
| 312 | /* Compare upstream version */
|
---|
[2725] | 313 | upstream_ver1 = xstrdup(ch_ver1);
|
---|
| 314 | upstream_ver2 = xstrdup(ch_ver2);
|
---|
[821] | 315 |
|
---|
| 316 | /* Chop off debian version, and store for later use */
|
---|
| 317 | deb_ver1 = strrchr(upstream_ver1, '-');
|
---|
| 318 | deb_ver2 = strrchr(upstream_ver2, '-');
|
---|
| 319 | if (deb_ver1) {
|
---|
[2725] | 320 | *deb_ver1++ = '\0';
|
---|
[821] | 321 | }
|
---|
| 322 | if (deb_ver2) {
|
---|
[2725] | 323 | *deb_ver2++ = '\0';
|
---|
[821] | 324 | }
|
---|
| 325 | result = version_compare_part(upstream_ver1, upstream_ver2);
|
---|
[2725] | 326 | if (result == 0) {
|
---|
[1765] | 327 | /* Compare debian versions */
|
---|
| 328 | result = version_compare_part(deb_ver1, deb_ver2);
|
---|
[2725] | 329 | }
|
---|
[821] | 330 |
|
---|
| 331 | free(upstream_ver1);
|
---|
| 332 | free(upstream_ver2);
|
---|
[1765] | 333 | return result;
|
---|
[821] | 334 | }
|
---|
| 335 |
|
---|
[1765] | 336 | static int test_version(const unsigned version1, const unsigned version2, const unsigned operator)
|
---|
[821] | 337 | {
|
---|
| 338 | const int version_result = version_compare(version1, version2);
|
---|
[1765] | 339 | switch (operator) {
|
---|
| 340 | case VER_ANY:
|
---|
| 341 | return TRUE;
|
---|
| 342 | case VER_EQUAL:
|
---|
| 343 | return (version_result == 0);
|
---|
| 344 | case VER_LESS:
|
---|
| 345 | return (version_result < 0);
|
---|
| 346 | case VER_LESS_EQUAL:
|
---|
| 347 | return (version_result <= 0);
|
---|
| 348 | case VER_MORE:
|
---|
| 349 | return (version_result > 0);
|
---|
| 350 | case VER_MORE_EQUAL:
|
---|
| 351 | return (version_result >= 0);
|
---|
[821] | 352 | }
|
---|
[1765] | 353 | return FALSE;
|
---|
[821] | 354 | }
|
---|
| 355 |
|
---|
[1765] | 356 | static int search_package_hashtable(const unsigned name, const unsigned version, const unsigned operator)
|
---|
[821] | 357 | {
|
---|
[2725] | 358 | unsigned probe_address;
|
---|
| 359 | unsigned probe_decrement;
|
---|
[821] | 360 |
|
---|
| 361 | make_hash(name_hashtable[name], &probe_address, &probe_decrement, PACKAGE_HASH_PRIME);
|
---|
[1765] | 362 | while (package_hashtable[probe_address] != NULL) {
|
---|
[821] | 363 | if (package_hashtable[probe_address]->name == name) {
|
---|
| 364 | if (operator == VER_ANY) {
|
---|
[1765] | 365 | return probe_address;
|
---|
[821] | 366 | }
|
---|
| 367 | if (test_version(package_hashtable[probe_address]->version, version, operator)) {
|
---|
[1765] | 368 | return probe_address;
|
---|
[821] | 369 | }
|
---|
| 370 | }
|
---|
| 371 | probe_address -= probe_decrement;
|
---|
| 372 | if ((int)probe_address < 0) {
|
---|
| 373 | probe_address += PACKAGE_HASH_PRIME;
|
---|
| 374 | }
|
---|
| 375 | }
|
---|
[1765] | 376 | return probe_address;
|
---|
[821] | 377 | }
|
---|
| 378 |
|
---|
| 379 | /*
|
---|
| 380 | * This function searches through the entire package_hashtable looking
|
---|
| 381 | * for a package which provides "needle". It returns the index into
|
---|
| 382 | * the package_hashtable for the providing package.
|
---|
| 383 | *
|
---|
| 384 | * needle is the index into name_hashtable of the package we are
|
---|
| 385 | * looking for.
|
---|
| 386 | *
|
---|
| 387 | * start_at is the index in the package_hashtable to start looking
|
---|
| 388 | * at. If start_at is -1 then start at the beginning. This is to allow
|
---|
| 389 | * for repeated searches since more than one package might provide
|
---|
| 390 | * needle.
|
---|
| 391 | *
|
---|
| 392 | * FIXME: I don't think this is very efficient, but I thought I'd keep
|
---|
| 393 | * it simple for now until it proves to be a problem.
|
---|
| 394 | */
|
---|
[1765] | 395 | static int search_for_provides(int needle, int start_at)
|
---|
| 396 | {
|
---|
[821] | 397 | int i, j;
|
---|
| 398 | common_node_t *p;
|
---|
| 399 | for (i = start_at + 1; i < PACKAGE_HASH_PRIME; i++) {
|
---|
| 400 | p = package_hashtable[i];
|
---|
[1765] | 401 | if (p == NULL)
|
---|
| 402 | continue;
|
---|
| 403 | for (j = 0; j < p->num_of_edges; j++)
|
---|
| 404 | if (p->edge[j]->type == EDGE_PROVIDES && p->edge[j]->name == needle)
|
---|
[821] | 405 | return i;
|
---|
| 406 | }
|
---|
| 407 | return -1;
|
---|
| 408 | }
|
---|
| 409 |
|
---|
| 410 | /*
|
---|
| 411 | * Add an edge to a node
|
---|
| 412 | */
|
---|
| 413 | static void add_edge_to_node(common_node_t *node, edge_t *edge)
|
---|
| 414 | {
|
---|
[2725] | 415 | node->edge = xrealloc_vector(node->edge, 2, node->num_of_edges);
|
---|
| 416 | node->edge[node->num_of_edges++] = edge;
|
---|
[821] | 417 | }
|
---|
| 418 |
|
---|
| 419 | /*
|
---|
| 420 | * Create one new node and one new edge for every dependency.
|
---|
| 421 | *
|
---|
| 422 | * Dependencies which contain multiple alternatives are represented as
|
---|
| 423 | * an EDGE_OR_PRE_DEPENDS or EDGE_OR_DEPENDS node, followed by a
|
---|
| 424 | * number of EDGE_PRE_DEPENDS or EDGE_DEPENDS nodes. The name field of
|
---|
| 425 | * the OR edge contains the full dependency string while the version
|
---|
| 426 | * field contains the number of EDGE nodes which follow as part of
|
---|
| 427 | * this alternative.
|
---|
| 428 | */
|
---|
[1765] | 429 | static void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned edge_type)
|
---|
[821] | 430 | {
|
---|
[1765] | 431 | char *line = xstrdup(whole_line);
|
---|
[821] | 432 | char *line2;
|
---|
| 433 | char *line_ptr1 = NULL;
|
---|
| 434 | char *line_ptr2 = NULL;
|
---|
| 435 | char *field;
|
---|
| 436 | char *field2;
|
---|
| 437 | char *version;
|
---|
| 438 | edge_t *edge;
|
---|
| 439 | edge_t *or_edge;
|
---|
| 440 | int offset_ch;
|
---|
| 441 |
|
---|
| 442 | field = strtok_r(line, ",", &line_ptr1);
|
---|
| 443 | do {
|
---|
| 444 | /* skip leading spaces */
|
---|
| 445 | field += strspn(field, " ");
|
---|
[1765] | 446 | line2 = xstrdup(field);
|
---|
[821] | 447 | field2 = strtok_r(line2, "|", &line_ptr2);
|
---|
[1765] | 448 | or_edge = NULL;
|
---|
| 449 | if ((edge_type == EDGE_DEPENDS || edge_type == EDGE_PRE_DEPENDS)
|
---|
| 450 | && (strcmp(field, field2) != 0)
|
---|
| 451 | ) {
|
---|
[2725] | 452 | or_edge = xzalloc(sizeof(edge_t));
|
---|
[821] | 453 | or_edge->type = edge_type + 1;
|
---|
| 454 | or_edge->name = search_name_hashtable(field);
|
---|
[2725] | 455 | //or_edge->version = 0; // tracks the number of alternatives
|
---|
[821] | 456 | add_edge_to_node(parent_node, or_edge);
|
---|
| 457 | }
|
---|
| 458 |
|
---|
| 459 | do {
|
---|
[1765] | 460 | edge = xmalloc(sizeof(edge_t));
|
---|
[821] | 461 | edge->type = edge_type;
|
---|
| 462 |
|
---|
| 463 | /* Skip any extra leading spaces */
|
---|
| 464 | field2 += strspn(field2, " ");
|
---|
| 465 |
|
---|
| 466 | /* Get dependency version info */
|
---|
| 467 | version = strchr(field2, '(');
|
---|
| 468 | if (version == NULL) {
|
---|
| 469 | edge->operator = VER_ANY;
|
---|
| 470 | /* Get the versions hash number, adding it if the number isnt already in there */
|
---|
| 471 | edge->version = search_name_hashtable("ANY");
|
---|
| 472 | } else {
|
---|
| 473 | /* Skip leading ' ' or '(' */
|
---|
[1765] | 474 | version += strspn(version, " (");
|
---|
[821] | 475 | /* Calculate length of any operator characters */
|
---|
| 476 | offset_ch = strspn(version, "<=>");
|
---|
| 477 | /* Determine operator */
|
---|
| 478 | if (offset_ch > 0) {
|
---|
| 479 | if (strncmp(version, "=", offset_ch) == 0) {
|
---|
| 480 | edge->operator = VER_EQUAL;
|
---|
[2725] | 481 | } else if (strncmp(version, "<<", offset_ch) == 0) {
|
---|
[821] | 482 | edge->operator = VER_LESS;
|
---|
[2725] | 483 | } else if (strncmp(version, "<=", offset_ch) == 0) {
|
---|
[821] | 484 | edge->operator = VER_LESS_EQUAL;
|
---|
[2725] | 485 | } else if (strncmp(version, ">>", offset_ch) == 0) {
|
---|
[821] | 486 | edge->operator = VER_MORE;
|
---|
[2725] | 487 | } else if (strncmp(version, ">=", offset_ch) == 0) {
|
---|
[821] | 488 | edge->operator = VER_MORE_EQUAL;
|
---|
| 489 | } else {
|
---|
[1765] | 490 | bb_error_msg_and_die("illegal operator");
|
---|
[821] | 491 | }
|
---|
| 492 | }
|
---|
| 493 | /* skip to start of version numbers */
|
---|
| 494 | version += offset_ch;
|
---|
| 495 | version += strspn(version, " ");
|
---|
| 496 |
|
---|
| 497 | /* Truncate version at trailing ' ' or ')' */
|
---|
| 498 | version[strcspn(version, " )")] = '\0';
|
---|
| 499 | /* Get the versions hash number, adding it if the number isnt already in there */
|
---|
| 500 | edge->version = search_name_hashtable(version);
|
---|
| 501 | }
|
---|
| 502 |
|
---|
| 503 | /* Get the dependency name */
|
---|
| 504 | field2[strcspn(field2, " (")] = '\0';
|
---|
| 505 | edge->name = search_name_hashtable(field2);
|
---|
| 506 |
|
---|
[1765] | 507 | if (or_edge)
|
---|
[821] | 508 | or_edge->version++;
|
---|
| 509 |
|
---|
| 510 | add_edge_to_node(parent_node, edge);
|
---|
[1765] | 511 | field2 = strtok_r(NULL, "|", &line_ptr2);
|
---|
| 512 | } while (field2 != NULL);
|
---|
| 513 |
|
---|
[821] | 514 | free(line2);
|
---|
[1765] | 515 | field = strtok_r(NULL, ",", &line_ptr1);
|
---|
| 516 | } while (field != NULL);
|
---|
| 517 |
|
---|
[821] | 518 | free(line);
|
---|
| 519 | }
|
---|
| 520 |
|
---|
| 521 | static void free_package(common_node_t *node)
|
---|
| 522 | {
|
---|
[1765] | 523 | unsigned i;
|
---|
[821] | 524 | if (node) {
|
---|
| 525 | for (i = 0; i < node->num_of_edges; i++) {
|
---|
| 526 | free(node->edge[i]);
|
---|
| 527 | }
|
---|
| 528 | free(node->edge);
|
---|
| 529 | free(node);
|
---|
| 530 | }
|
---|
| 531 | }
|
---|
| 532 |
|
---|
[1765] | 533 | /*
|
---|
[2725] | 534 | * Gets the next package field from package_buffer, separated into the field name
|
---|
[1765] | 535 | * and field value, it returns the int offset to the first character of the next field
|
---|
| 536 | */
|
---|
| 537 | static int read_package_field(const char *package_buffer, char **field_name, char **field_value)
|
---|
[821] | 538 | {
|
---|
[1765] | 539 | int offset_name_start = 0;
|
---|
| 540 | int offset_name_end = 0;
|
---|
| 541 | int offset_value_start = 0;
|
---|
| 542 | int offset_value_end = 0;
|
---|
| 543 | int offset = 0;
|
---|
| 544 | int next_offset;
|
---|
| 545 | int name_length;
|
---|
| 546 | int value_length;
|
---|
| 547 | int exit_flag = FALSE;
|
---|
[821] | 548 |
|
---|
[1765] | 549 | if (package_buffer == NULL) {
|
---|
| 550 | *field_name = NULL;
|
---|
| 551 | *field_value = NULL;
|
---|
| 552 | return -1;
|
---|
| 553 | }
|
---|
| 554 | while (1) {
|
---|
| 555 | next_offset = offset + 1;
|
---|
| 556 | switch (package_buffer[offset]) {
|
---|
| 557 | case '\0':
|
---|
| 558 | exit_flag = TRUE;
|
---|
| 559 | break;
|
---|
| 560 | case ':':
|
---|
| 561 | if (offset_name_end == 0) {
|
---|
| 562 | offset_name_end = offset;
|
---|
| 563 | offset_value_start = next_offset;
|
---|
| 564 | }
|
---|
| 565 | /* TODO: Name might still have trailing spaces if ':' isnt
|
---|
| 566 | * immediately after name */
|
---|
| 567 | break;
|
---|
| 568 | case '\n':
|
---|
| 569 | /* TODO: The char next_offset may be out of bounds */
|
---|
| 570 | if (package_buffer[next_offset] != ' ') {
|
---|
| 571 | exit_flag = TRUE;
|
---|
| 572 | break;
|
---|
| 573 | }
|
---|
| 574 | case '\t':
|
---|
| 575 | case ' ':
|
---|
| 576 | /* increment the value start point if its a just filler */
|
---|
| 577 | if (offset_name_start == offset) {
|
---|
| 578 | offset_name_start++;
|
---|
| 579 | }
|
---|
| 580 | if (offset_value_start == offset) {
|
---|
| 581 | offset_value_start++;
|
---|
| 582 | }
|
---|
| 583 | break;
|
---|
| 584 | }
|
---|
| 585 | if (exit_flag) {
|
---|
| 586 | /* Check that the names are valid */
|
---|
| 587 | offset_value_end = offset;
|
---|
| 588 | name_length = offset_name_end - offset_name_start;
|
---|
| 589 | value_length = offset_value_end - offset_value_start;
|
---|
| 590 | if (name_length == 0) {
|
---|
| 591 | break;
|
---|
| 592 | }
|
---|
| 593 | if ((name_length > 0) && (value_length > 0)) {
|
---|
| 594 | break;
|
---|
| 595 | }
|
---|
| 596 |
|
---|
| 597 | /* If not valid, start fresh with next field */
|
---|
| 598 | exit_flag = FALSE;
|
---|
| 599 | offset_name_start = offset + 1;
|
---|
| 600 | offset_name_end = 0;
|
---|
| 601 | offset_value_start = offset + 1;
|
---|
| 602 | offset_value_end = offset + 1;
|
---|
| 603 | offset++;
|
---|
| 604 | }
|
---|
| 605 | offset++;
|
---|
| 606 | }
|
---|
| 607 | *field_name = NULL;
|
---|
| 608 | if (name_length) {
|
---|
| 609 | *field_name = xstrndup(&package_buffer[offset_name_start], name_length);
|
---|
| 610 | }
|
---|
| 611 | *field_value = NULL;
|
---|
| 612 | if (value_length > 0) {
|
---|
| 613 | *field_value = xstrndup(&package_buffer[offset_value_start], value_length);
|
---|
| 614 | }
|
---|
| 615 | return next_offset;
|
---|
| 616 | }
|
---|
| 617 |
|
---|
| 618 | static unsigned fill_package_struct(char *control_buffer)
|
---|
| 619 | {
|
---|
| 620 | static const char field_names[] ALIGN1 =
|
---|
| 621 | "Package\0""Version\0"
|
---|
| 622 | "Pre-Depends\0""Depends\0""Replaces\0""Provides\0"
|
---|
| 623 | "Conflicts\0""Suggests\0""Recommends\0""Enhances\0";
|
---|
| 624 |
|
---|
| 625 | common_node_t *new_node = xzalloc(sizeof(common_node_t));
|
---|
[821] | 626 | char *field_name;
|
---|
| 627 | char *field_value;
|
---|
| 628 | int field_start = 0;
|
---|
| 629 | int num = -1;
|
---|
| 630 | int buffer_length = strlen(control_buffer);
|
---|
| 631 |
|
---|
| 632 | new_node->version = search_name_hashtable("unknown");
|
---|
| 633 | while (field_start < buffer_length) {
|
---|
[1765] | 634 | unsigned field_num;
|
---|
[821] | 635 |
|
---|
| 636 | field_start += read_package_field(&control_buffer[field_start],
|
---|
| 637 | &field_name, &field_value);
|
---|
| 638 |
|
---|
| 639 | if (field_name == NULL) {
|
---|
[2725] | 640 | goto fill_package_struct_cleanup;
|
---|
[821] | 641 | }
|
---|
| 642 |
|
---|
[1765] | 643 | field_num = index_in_strings(field_names, field_name);
|
---|
| 644 | switch (field_num) {
|
---|
| 645 | case 0: /* Package */
|
---|
| 646 | new_node->name = search_name_hashtable(field_value);
|
---|
| 647 | break;
|
---|
| 648 | case 1: /* Version */
|
---|
| 649 | new_node->version = search_name_hashtable(field_value);
|
---|
| 650 | break;
|
---|
| 651 | case 2: /* Pre-Depends */
|
---|
| 652 | add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
|
---|
| 653 | break;
|
---|
| 654 | case 3: /* Depends */
|
---|
| 655 | add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
|
---|
| 656 | break;
|
---|
| 657 | case 4: /* Replaces */
|
---|
| 658 | add_split_dependencies(new_node, field_value, EDGE_REPLACES);
|
---|
| 659 | break;
|
---|
| 660 | case 5: /* Provides */
|
---|
| 661 | add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
|
---|
| 662 | break;
|
---|
| 663 | case 6: /* Conflicts */
|
---|
| 664 | add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
|
---|
| 665 | break;
|
---|
| 666 | case 7: /* Suggests */
|
---|
| 667 | add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
|
---|
| 668 | break;
|
---|
| 669 | case 8: /* Recommends */
|
---|
| 670 | add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
|
---|
| 671 | break;
|
---|
| 672 | case 9: /* Enhances */
|
---|
| 673 | add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
|
---|
| 674 | break;
|
---|
[821] | 675 | }
|
---|
[1765] | 676 | fill_package_struct_cleanup:
|
---|
[821] | 677 | free(field_name);
|
---|
| 678 | free(field_value);
|
---|
| 679 | }
|
---|
| 680 |
|
---|
| 681 | if (new_node->version == search_name_hashtable("unknown")) {
|
---|
| 682 | free_package(new_node);
|
---|
[1765] | 683 | return -1;
|
---|
[821] | 684 | }
|
---|
| 685 | num = search_package_hashtable(new_node->name, new_node->version, VER_EQUAL);
|
---|
[1765] | 686 | free_package(package_hashtable[num]);
|
---|
| 687 | package_hashtable[num] = new_node;
|
---|
| 688 | return num;
|
---|
[821] | 689 | }
|
---|
| 690 |
|
---|
| 691 | /* if num = 1, it returns the want status, 2 returns flag, 3 returns status */
|
---|
[1765] | 692 | static unsigned get_status(const unsigned status_node, const int num)
|
---|
[821] | 693 | {
|
---|
| 694 | char *status_string = name_hashtable[status_hashtable[status_node]->status];
|
---|
| 695 | char *state_sub_string;
|
---|
[1765] | 696 | unsigned state_sub_num;
|
---|
[821] | 697 | int len;
|
---|
| 698 | int i;
|
---|
| 699 |
|
---|
| 700 | /* set tmp_string to point to the start of the word number */
|
---|
| 701 | for (i = 1; i < num; i++) {
|
---|
| 702 | /* skip past a word */
|
---|
| 703 | status_string += strcspn(status_string, " ");
|
---|
| 704 | /* skip past the separating spaces */
|
---|
| 705 | status_string += strspn(status_string, " ");
|
---|
| 706 | }
|
---|
[1765] | 707 | len = strcspn(status_string, " \n");
|
---|
| 708 | state_sub_string = xstrndup(status_string, len);
|
---|
[821] | 709 | state_sub_num = search_name_hashtable(state_sub_string);
|
---|
| 710 | free(state_sub_string);
|
---|
[1765] | 711 | return state_sub_num;
|
---|
[821] | 712 | }
|
---|
| 713 |
|
---|
[1765] | 714 | static void set_status(const unsigned status_node_num, const char *new_value, const int position)
|
---|
[821] | 715 | {
|
---|
[1765] | 716 | const unsigned new_value_num = search_name_hashtable(new_value);
|
---|
| 717 | unsigned want = get_status(status_node_num, 1);
|
---|
| 718 | unsigned flag = get_status(status_node_num, 2);
|
---|
| 719 | unsigned status = get_status(status_node_num, 3);
|
---|
[821] | 720 | char *new_status;
|
---|
| 721 |
|
---|
| 722 | switch (position) {
|
---|
[1765] | 723 | case 1:
|
---|
[821] | 724 | want = new_value_num;
|
---|
| 725 | break;
|
---|
[1765] | 726 | case 2:
|
---|
[821] | 727 | flag = new_value_num;
|
---|
| 728 | break;
|
---|
[1765] | 729 | case 3:
|
---|
[821] | 730 | status = new_value_num;
|
---|
| 731 | break;
|
---|
| 732 | default:
|
---|
| 733 | bb_error_msg_and_die("DEBUG ONLY: this shouldnt happen");
|
---|
| 734 | }
|
---|
| 735 |
|
---|
[1765] | 736 | new_status = xasprintf("%s %s %s", name_hashtable[want], name_hashtable[flag], name_hashtable[status]);
|
---|
[821] | 737 | status_hashtable[status_node_num]->status = search_name_hashtable(new_status);
|
---|
| 738 | free(new_status);
|
---|
| 739 | }
|
---|
| 740 |
|
---|
[1765] | 741 | static const char *describe_status(int status_num)
|
---|
| 742 | {
|
---|
| 743 | int status_want, status_state;
|
---|
| 744 | if (status_hashtable[status_num] == NULL || status_hashtable[status_num]->status == 0)
|
---|
| 745 | return "is not installed or flagged to be installed";
|
---|
[821] | 746 |
|
---|
| 747 | status_want = get_status(status_num, 1);
|
---|
| 748 | status_state = get_status(status_num, 3);
|
---|
| 749 |
|
---|
[1765] | 750 | if (status_state == search_name_hashtable("installed")) {
|
---|
| 751 | if (status_want == search_name_hashtable("install"))
|
---|
[821] | 752 | return "is installed";
|
---|
[1765] | 753 | if (status_want == search_name_hashtable("deinstall"))
|
---|
[821] | 754 | return "is marked to be removed";
|
---|
[1765] | 755 | if (status_want == search_name_hashtable("purge"))
|
---|
[821] | 756 | return "is marked to be purged";
|
---|
| 757 | }
|
---|
[1765] | 758 | if (status_want == search_name_hashtable("unknown"))
|
---|
[821] | 759 | return "is in an indeterminate state";
|
---|
[1765] | 760 | if (status_want == search_name_hashtable("install"))
|
---|
[821] | 761 | return "is marked to be installed";
|
---|
| 762 |
|
---|
| 763 | return "is not installed or flagged to be installed";
|
---|
| 764 | }
|
---|
| 765 |
|
---|
| 766 | static void index_status_file(const char *filename)
|
---|
| 767 | {
|
---|
| 768 | FILE *status_file;
|
---|
| 769 | char *control_buffer;
|
---|
| 770 | char *status_line;
|
---|
| 771 | status_node_t *status_node = NULL;
|
---|
[1765] | 772 | unsigned status_num;
|
---|
[821] | 773 |
|
---|
[2725] | 774 | status_file = xfopen_for_read(filename);
|
---|
| 775 | while ((control_buffer = xmalloc_fgetline_str(status_file, "\n\n")) != NULL) {
|
---|
[1765] | 776 | const unsigned package_num = fill_package_struct(control_buffer);
|
---|
[821] | 777 | if (package_num != -1) {
|
---|
| 778 | status_node = xmalloc(sizeof(status_node_t));
|
---|
| 779 | /* fill_package_struct doesnt handle the status field */
|
---|
| 780 | status_line = strstr(control_buffer, "Status:");
|
---|
| 781 | if (status_line != NULL) {
|
---|
| 782 | status_line += 7;
|
---|
| 783 | status_line += strspn(status_line, " \n\t");
|
---|
[1765] | 784 | status_line = xstrndup(status_line, strcspn(status_line, "\n"));
|
---|
[821] | 785 | status_node->status = search_name_hashtable(status_line);
|
---|
| 786 | free(status_line);
|
---|
| 787 | }
|
---|
| 788 | status_node->package = package_num;
|
---|
| 789 | status_num = search_status_hashtable(name_hashtable[package_hashtable[status_node->package]->name]);
|
---|
| 790 | status_hashtable[status_num] = status_node;
|
---|
| 791 | }
|
---|
| 792 | free(control_buffer);
|
---|
| 793 | }
|
---|
| 794 | fclose(status_file);
|
---|
| 795 | }
|
---|
| 796 |
|
---|
| 797 | static void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
|
---|
| 798 | {
|
---|
| 799 | char *name;
|
---|
| 800 | char *value;
|
---|
| 801 | int start = 0;
|
---|
| 802 | while (1) {
|
---|
| 803 | start += read_package_field(&control_buffer[start], &name, &value);
|
---|
| 804 | if (name == NULL) {
|
---|
| 805 | break;
|
---|
| 806 | }
|
---|
| 807 | if (strcmp(name, "Status") != 0) {
|
---|
| 808 | fprintf(new_status_file, "%s: %s\n", name, value);
|
---|
| 809 | }
|
---|
| 810 | }
|
---|
| 811 | }
|
---|
| 812 |
|
---|
| 813 | /* This could do with a cleanup */
|
---|
| 814 | static void write_status_file(deb_file_t **deb_file)
|
---|
| 815 | {
|
---|
[2725] | 816 | FILE *old_status_file = xfopen_for_read("/var/lib/dpkg/status");
|
---|
| 817 | FILE *new_status_file = xfopen_for_write("/var/lib/dpkg/status.udeb");
|
---|
[821] | 818 | char *package_name;
|
---|
| 819 | char *status_from_file;
|
---|
| 820 | char *control_buffer = NULL;
|
---|
| 821 | char *tmp_string;
|
---|
| 822 | int status_num;
|
---|
| 823 | int field_start = 0;
|
---|
| 824 | int write_flag;
|
---|
| 825 | int i = 0;
|
---|
| 826 |
|
---|
| 827 | /* Update previously known packages */
|
---|
[2725] | 828 | while ((control_buffer = xmalloc_fgetline_str(old_status_file, "\n\n")) != NULL) {
|
---|
[1765] | 829 | tmp_string = strstr(control_buffer, "Package:");
|
---|
| 830 | if (tmp_string == NULL) {
|
---|
[821] | 831 | continue;
|
---|
| 832 | }
|
---|
| 833 |
|
---|
| 834 | tmp_string += 8;
|
---|
| 835 | tmp_string += strspn(tmp_string, " \n\t");
|
---|
[1765] | 836 | package_name = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
|
---|
[821] | 837 | write_flag = FALSE;
|
---|
| 838 | tmp_string = strstr(control_buffer, "Status:");
|
---|
| 839 | if (tmp_string != NULL) {
|
---|
[2725] | 840 | /* Separate the status value from the control buffer */
|
---|
[821] | 841 | tmp_string += 7;
|
---|
| 842 | tmp_string += strspn(tmp_string, " \n\t");
|
---|
[1765] | 843 | status_from_file = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
|
---|
[821] | 844 | } else {
|
---|
| 845 | status_from_file = NULL;
|
---|
| 846 | }
|
---|
| 847 |
|
---|
| 848 | /* Find this package in the status hashtable */
|
---|
| 849 | status_num = search_status_hashtable(package_name);
|
---|
| 850 | if (status_hashtable[status_num] != NULL) {
|
---|
| 851 | const char *status_from_hashtable = name_hashtable[status_hashtable[status_num]->status];
|
---|
| 852 | if (strcmp(status_from_file, status_from_hashtable) != 0) {
|
---|
| 853 | /* New status isnt exactly the same as old status */
|
---|
| 854 | const int state_status = get_status(status_num, 3);
|
---|
[1765] | 855 | if ((strcmp("installed", name_hashtable[state_status]) == 0)
|
---|
| 856 | || (strcmp("unpacked", name_hashtable[state_status]) == 0)
|
---|
| 857 | ) {
|
---|
[821] | 858 | /* We need to add the control file from the package */
|
---|
| 859 | i = 0;
|
---|
[1765] | 860 | while (deb_file[i] != NULL) {
|
---|
[821] | 861 | if (strcmp(package_name, name_hashtable[package_hashtable[deb_file[i]->package]->name]) == 0) {
|
---|
| 862 | /* Write a status file entry with a modified status */
|
---|
| 863 | /* remove trailing \n's */
|
---|
| 864 | write_buffer_no_status(new_status_file, deb_file[i]->control_file);
|
---|
| 865 | set_status(status_num, "ok", 2);
|
---|
[1765] | 866 | fprintf(new_status_file, "Status: %s\n\n",
|
---|
| 867 | name_hashtable[status_hashtable[status_num]->status]);
|
---|
[821] | 868 | write_flag = TRUE;
|
---|
| 869 | break;
|
---|
| 870 | }
|
---|
| 871 | i++;
|
---|
| 872 | }
|
---|
| 873 | /* This is temperary, debugging only */
|
---|
| 874 | if (deb_file[i] == NULL) {
|
---|
[1765] | 875 | bb_error_msg_and_die("ALERT: cannot find a control file, "
|
---|
| 876 | "your status file may be broken, status may be "
|
---|
| 877 | "incorrect for %s", package_name);
|
---|
[821] | 878 | }
|
---|
| 879 | }
|
---|
| 880 | else if (strcmp("not-installed", name_hashtable[state_status]) == 0) {
|
---|
| 881 | /* Only write the Package, Status, Priority and Section lines */
|
---|
| 882 | fprintf(new_status_file, "Package: %s\n", package_name);
|
---|
| 883 | fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
|
---|
| 884 |
|
---|
| 885 | while (1) {
|
---|
| 886 | char *field_name;
|
---|
| 887 | char *field_value;
|
---|
| 888 | field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
|
---|
| 889 | if (field_name == NULL) {
|
---|
| 890 | break;
|
---|
| 891 | }
|
---|
[2725] | 892 | if ((strcmp(field_name, "Priority") == 0)
|
---|
| 893 | || (strcmp(field_name, "Section") == 0)
|
---|
| 894 | ) {
|
---|
[821] | 895 | fprintf(new_status_file, "%s: %s\n", field_name, field_value);
|
---|
| 896 | }
|
---|
| 897 | }
|
---|
| 898 | write_flag = TRUE;
|
---|
| 899 | fputs("\n", new_status_file);
|
---|
| 900 | }
|
---|
[2725] | 901 | else if (strcmp("config-files", name_hashtable[state_status]) == 0) {
|
---|
[821] | 902 | /* only change the status line */
|
---|
| 903 | while (1) {
|
---|
| 904 | char *field_name;
|
---|
| 905 | char *field_value;
|
---|
| 906 | field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
|
---|
| 907 | if (field_name == NULL) {
|
---|
| 908 | break;
|
---|
| 909 | }
|
---|
| 910 | /* Setup start point for next field */
|
---|
| 911 | if (strcmp(field_name, "Status") == 0) {
|
---|
| 912 | fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
|
---|
| 913 | } else {
|
---|
| 914 | fprintf(new_status_file, "%s: %s\n", field_name, field_value);
|
---|
| 915 | }
|
---|
| 916 | }
|
---|
| 917 | write_flag = TRUE;
|
---|
| 918 | fputs("\n", new_status_file);
|
---|
| 919 | }
|
---|
| 920 | }
|
---|
| 921 | }
|
---|
| 922 | /* If the package from the status file wasnt handle above, do it now*/
|
---|
[1765] | 923 | if (!write_flag) {
|
---|
[821] | 924 | fprintf(new_status_file, "%s\n\n", control_buffer);
|
---|
| 925 | }
|
---|
| 926 |
|
---|
| 927 | free(status_from_file);
|
---|
| 928 | free(package_name);
|
---|
| 929 | free(control_buffer);
|
---|
| 930 | }
|
---|
| 931 |
|
---|
| 932 | /* Write any new packages */
|
---|
[1765] | 933 | for (i = 0; deb_file[i] != NULL; i++) {
|
---|
[821] | 934 | status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[i]->package]->name]);
|
---|
| 935 | if (strcmp("reinstreq", name_hashtable[get_status(status_num, 2)]) == 0) {
|
---|
| 936 | write_buffer_no_status(new_status_file, deb_file[i]->control_file);
|
---|
| 937 | set_status(status_num, "ok", 2);
|
---|
| 938 | fprintf(new_status_file, "Status: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
|
---|
| 939 | }
|
---|
| 940 | }
|
---|
| 941 | fclose(old_status_file);
|
---|
| 942 | fclose(new_status_file);
|
---|
| 943 |
|
---|
| 944 | /* Create a separate backfile to dpkg */
|
---|
| 945 | if (rename("/var/lib/dpkg/status", "/var/lib/dpkg/status.udeb.bak") == -1) {
|
---|
[2725] | 946 | if (errno != ENOENT)
|
---|
| 947 | bb_error_msg_and_die("can't create backup status file");
|
---|
[821] | 948 | /* Its ok if renaming the status file fails because status
|
---|
| 949 | * file doesnt exist, maybe we are starting from scratch */
|
---|
[1765] | 950 | bb_error_msg("no status file found, creating new one");
|
---|
[821] | 951 | }
|
---|
| 952 |
|
---|
[2725] | 953 | xrename("/var/lib/dpkg/status.udeb", "/var/lib/dpkg/status");
|
---|
[821] | 954 | }
|
---|
| 955 |
|
---|
| 956 | /* This function returns TRUE if the given package can satisfy a
|
---|
| 957 | * dependency of type depend_type.
|
---|
| 958 | *
|
---|
| 959 | * A pre-depends is satisfied only if a package is already installed,
|
---|
| 960 | * which a regular depends can be satisfied by a package which we want
|
---|
| 961 | * to install.
|
---|
| 962 | */
|
---|
| 963 | static int package_satisfies_dependency(int package, int depend_type)
|
---|
| 964 | {
|
---|
| 965 | int status_num = search_status_hashtable(name_hashtable[package_hashtable[package]->name]);
|
---|
| 966 |
|
---|
| 967 | /* status could be unknown if package is a pure virtual
|
---|
| 968 | * provides which cannot satisfy any dependency by itself.
|
---|
| 969 | */
|
---|
[1765] | 970 | if (status_hashtable[status_num] == NULL)
|
---|
[821] | 971 | return 0;
|
---|
| 972 |
|
---|
| 973 | switch (depend_type) {
|
---|
[2725] | 974 | case EDGE_PRE_DEPENDS: return get_status(status_num, 3) == search_name_hashtable("installed");
|
---|
| 975 | case EDGE_DEPENDS: return get_status(status_num, 1) == search_name_hashtable("install");
|
---|
[821] | 976 | }
|
---|
| 977 | return 0;
|
---|
| 978 | }
|
---|
| 979 |
|
---|
[2725] | 980 | static int check_deps(deb_file_t **deb_file, int deb_start /*, int dep_max_count - ?? */)
|
---|
[821] | 981 | {
|
---|
| 982 | int *conflicts = NULL;
|
---|
| 983 | int conflicts_num = 0;
|
---|
| 984 | int i = deb_start;
|
---|
| 985 | int j;
|
---|
| 986 |
|
---|
| 987 | /* Check for conflicts
|
---|
| 988 | * TODO: TEST if conflicts with other packages to be installed
|
---|
| 989 | *
|
---|
| 990 | * Add install packages and the packages they provide
|
---|
| 991 | * to the list of files to check conflicts for
|
---|
| 992 | */
|
---|
| 993 |
|
---|
| 994 | /* Create array of package numbers to check against
|
---|
| 995 | * installed package for conflicts*/
|
---|
| 996 | while (deb_file[i] != NULL) {
|
---|
[1765] | 997 | const unsigned package_num = deb_file[i]->package;
|
---|
[2725] | 998 | conflicts = xrealloc_vector(conflicts, 2, conflicts_num);
|
---|
[821] | 999 | conflicts[conflicts_num] = package_num;
|
---|
| 1000 | conflicts_num++;
|
---|
| 1001 | /* add provides to conflicts list */
|
---|
[2725] | 1002 | for (j = 0; j < package_hashtable[package_num]->num_of_edges; j++) {
|
---|
[821] | 1003 | if (package_hashtable[package_num]->edge[j]->type == EDGE_PROVIDES) {
|
---|
| 1004 | const int conflicts_package_num = search_package_hashtable(
|
---|
| 1005 | package_hashtable[package_num]->edge[j]->name,
|
---|
| 1006 | package_hashtable[package_num]->edge[j]->version,
|
---|
| 1007 | package_hashtable[package_num]->edge[j]->operator);
|
---|
| 1008 | if (package_hashtable[conflicts_package_num] == NULL) {
|
---|
| 1009 | /* create a new package */
|
---|
[1765] | 1010 | common_node_t *new_node = xzalloc(sizeof(common_node_t));
|
---|
[821] | 1011 | new_node->name = package_hashtable[package_num]->edge[j]->name;
|
---|
| 1012 | new_node->version = package_hashtable[package_num]->edge[j]->version;
|
---|
| 1013 | package_hashtable[conflicts_package_num] = new_node;
|
---|
| 1014 | }
|
---|
[2725] | 1015 | conflicts = xrealloc_vector(conflicts, 2, conflicts_num);
|
---|
[821] | 1016 | conflicts[conflicts_num] = conflicts_package_num;
|
---|
| 1017 | conflicts_num++;
|
---|
| 1018 | }
|
---|
| 1019 | }
|
---|
| 1020 | i++;
|
---|
| 1021 | }
|
---|
| 1022 |
|
---|
| 1023 | /* Check conflicts */
|
---|
| 1024 | i = 0;
|
---|
| 1025 | while (deb_file[i] != NULL) {
|
---|
| 1026 | const common_node_t *package_node = package_hashtable[deb_file[i]->package];
|
---|
| 1027 | int status_num = 0;
|
---|
| 1028 | status_num = search_status_hashtable(name_hashtable[package_node->name]);
|
---|
| 1029 |
|
---|
| 1030 | if (get_status(status_num, 3) == search_name_hashtable("installed")) {
|
---|
| 1031 | i++;
|
---|
| 1032 | continue;
|
---|
| 1033 | }
|
---|
| 1034 |
|
---|
| 1035 | for (j = 0; j < package_node->num_of_edges; j++) {
|
---|
| 1036 | const edge_t *package_edge = package_node->edge[j];
|
---|
| 1037 |
|
---|
| 1038 | if (package_edge->type == EDGE_CONFLICTS) {
|
---|
[1765] | 1039 | const unsigned package_num =
|
---|
[821] | 1040 | search_package_hashtable(package_edge->name,
|
---|
[3232] | 1041 | package_edge->version,
|
---|
| 1042 | package_edge->operator);
|
---|
[821] | 1043 | int result = 0;
|
---|
| 1044 | if (package_hashtable[package_num] != NULL) {
|
---|
| 1045 | status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
|
---|
| 1046 |
|
---|
| 1047 | if (get_status(status_num, 1) == search_name_hashtable("install")) {
|
---|
| 1048 | result = test_version(package_hashtable[deb_file[i]->package]->version,
|
---|
| 1049 | package_edge->version, package_edge->operator);
|
---|
| 1050 | }
|
---|
| 1051 | }
|
---|
| 1052 |
|
---|
| 1053 | if (result) {
|
---|
[1765] | 1054 | bb_error_msg_and_die("package %s conflicts with %s",
|
---|
[821] | 1055 | name_hashtable[package_node->name],
|
---|
| 1056 | name_hashtable[package_edge->name]);
|
---|
| 1057 | }
|
---|
| 1058 | }
|
---|
| 1059 | }
|
---|
| 1060 | i++;
|
---|
| 1061 | }
|
---|
| 1062 |
|
---|
| 1063 |
|
---|
| 1064 | /* Check dependendcies */
|
---|
| 1065 | for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
|
---|
| 1066 | int status_num = 0;
|
---|
| 1067 | int number_of_alternatives = 0;
|
---|
| 1068 | const edge_t * root_of_alternatives = NULL;
|
---|
| 1069 | const common_node_t *package_node = package_hashtable[i];
|
---|
| 1070 |
|
---|
| 1071 | /* If the package node does not exist then this
|
---|
| 1072 | * package is a virtual one. In which case there are
|
---|
| 1073 | * no dependencies to check.
|
---|
| 1074 | */
|
---|
[1765] | 1075 | if (package_node == NULL) continue;
|
---|
[821] | 1076 |
|
---|
| 1077 | status_num = search_status_hashtable(name_hashtable[package_node->name]);
|
---|
| 1078 |
|
---|
| 1079 | /* If there is no status then this package is a
|
---|
| 1080 | * virtual one provided by something else. In which
|
---|
| 1081 | * case there are no dependencies to check.
|
---|
| 1082 | */
|
---|
[1765] | 1083 | if (status_hashtable[status_num] == NULL) continue;
|
---|
[821] | 1084 |
|
---|
| 1085 | /* If we don't want this package installed then we may
|
---|
| 1086 | * as well ignore it's dependencies.
|
---|
| 1087 | */
|
---|
| 1088 | if (get_status(status_num, 1) != search_name_hashtable("install")) {
|
---|
| 1089 | continue;
|
---|
| 1090 | }
|
---|
| 1091 |
|
---|
| 1092 | /* This code is tested only for EDGE_DEPENDS, since I
|
---|
| 1093 | * have no suitable pre-depends available. There is no
|
---|
| 1094 | * reason that it shouldn't work though :-)
|
---|
| 1095 | */
|
---|
| 1096 | for (j = 0; j < package_node->num_of_edges; j++) {
|
---|
| 1097 | const edge_t *package_edge = package_node->edge[j];
|
---|
[1765] | 1098 | unsigned package_num;
|
---|
[821] | 1099 |
|
---|
[1765] | 1100 | if (package_edge->type == EDGE_OR_PRE_DEPENDS
|
---|
| 1101 | || package_edge->type == EDGE_OR_DEPENDS
|
---|
[2725] | 1102 | ) {
|
---|
| 1103 | /* start an EDGE_OR_ list */
|
---|
[821] | 1104 | number_of_alternatives = package_edge->version;
|
---|
| 1105 | root_of_alternatives = package_edge;
|
---|
| 1106 | continue;
|
---|
[1765] | 1107 | }
|
---|
[2725] | 1108 | if (number_of_alternatives == 0) { /* not in the middle of an EDGE_OR_ list */
|
---|
[821] | 1109 | number_of_alternatives = 1;
|
---|
| 1110 | root_of_alternatives = NULL;
|
---|
| 1111 | }
|
---|
| 1112 |
|
---|
| 1113 | package_num = search_package_hashtable(package_edge->name, package_edge->version, package_edge->operator);
|
---|
| 1114 |
|
---|
[2725] | 1115 | if (package_edge->type == EDGE_PRE_DEPENDS
|
---|
| 1116 | || package_edge->type == EDGE_DEPENDS
|
---|
| 1117 | ) {
|
---|
[821] | 1118 | int result=1;
|
---|
| 1119 | status_num = 0;
|
---|
| 1120 |
|
---|
| 1121 | /* If we are inside an alternative then check
|
---|
| 1122 | * this edge is the right type.
|
---|
| 1123 | *
|
---|
| 1124 | * EDGE_DEPENDS == OR_DEPENDS -1
|
---|
| 1125 | * EDGE_PRE_DEPENDS == OR_PRE_DEPENDS -1
|
---|
| 1126 | */
|
---|
[1765] | 1127 | if (root_of_alternatives && package_edge->type != root_of_alternatives->type - 1)
|
---|
| 1128 | bb_error_msg_and_die("fatal error, package dependencies corrupt: %d != %d - 1",
|
---|
[3232] | 1129 | package_edge->type, root_of_alternatives->type);
|
---|
[821] | 1130 |
|
---|
| 1131 | if (package_hashtable[package_num] != NULL)
|
---|
| 1132 | result = !package_satisfies_dependency(package_num, package_edge->type);
|
---|
| 1133 |
|
---|
| 1134 | if (result) { /* check for other package which provide what we are looking for */
|
---|
| 1135 | int provider = -1;
|
---|
| 1136 |
|
---|
[1765] | 1137 | while ((provider = search_for_provides(package_edge->name, provider)) > -1) {
|
---|
| 1138 | if (package_hashtable[provider] == NULL) {
|
---|
| 1139 | puts("Have a provider but no package information for it");
|
---|
[821] | 1140 | continue;
|
---|
| 1141 | }
|
---|
| 1142 | result = !package_satisfies_dependency(provider, package_edge->type);
|
---|
| 1143 |
|
---|
[1765] | 1144 | if (result == 0)
|
---|
[821] | 1145 | break;
|
---|
| 1146 | }
|
---|
| 1147 | }
|
---|
| 1148 |
|
---|
| 1149 | /* It must be already installed, or to be installed */
|
---|
| 1150 | number_of_alternatives--;
|
---|
| 1151 | if (result && number_of_alternatives == 0) {
|
---|
[1765] | 1152 | if (root_of_alternatives)
|
---|
[821] | 1153 | bb_error_msg_and_die(
|
---|
[3621] | 1154 | "package %s %sdepends on %s, which %s",
|
---|
[821] | 1155 | name_hashtable[package_node->name],
|
---|
| 1156 | package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
|
---|
[3621] | 1157 | name_hashtable[root_of_alternatives->name],
|
---|
| 1158 | "cannot be satisfied");
|
---|
[1765] | 1159 | bb_error_msg_and_die(
|
---|
[3621] | 1160 | "package %s %sdepends on %s, which %s",
|
---|
[1765] | 1161 | name_hashtable[package_node->name],
|
---|
| 1162 | package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
|
---|
| 1163 | name_hashtable[package_edge->name],
|
---|
| 1164 | describe_status(status_num));
|
---|
| 1165 | }
|
---|
| 1166 | if (result == 0 && number_of_alternatives) {
|
---|
[821] | 1167 | /* we've found a package which
|
---|
| 1168 | * satisfies the dependency,
|
---|
| 1169 | * so skip over the rest of
|
---|
| 1170 | * the alternatives.
|
---|
| 1171 | */
|
---|
| 1172 | j += number_of_alternatives;
|
---|
| 1173 | number_of_alternatives = 0;
|
---|
| 1174 | }
|
---|
| 1175 | }
|
---|
| 1176 | }
|
---|
| 1177 | }
|
---|
| 1178 | free(conflicts);
|
---|
[1765] | 1179 | return TRUE;
|
---|
[821] | 1180 | }
|
---|
| 1181 |
|
---|
| 1182 | static char **create_list(const char *filename)
|
---|
| 1183 | {
|
---|
| 1184 | FILE *list_stream;
|
---|
[2725] | 1185 | char **file_list;
|
---|
| 1186 | char *line;
|
---|
| 1187 | int count;
|
---|
[821] | 1188 |
|
---|
| 1189 | /* don't use [xw]fopen here, handle error ourself */
|
---|
[2725] | 1190 | list_stream = fopen_for_read(filename);
|
---|
[821] | 1191 | if (list_stream == NULL) {
|
---|
[1765] | 1192 | return NULL;
|
---|
[821] | 1193 | }
|
---|
| 1194 |
|
---|
[2725] | 1195 | file_list = NULL;
|
---|
| 1196 | count = 0;
|
---|
| 1197 | while ((line = xmalloc_fgetline(list_stream)) != NULL) {
|
---|
| 1198 | file_list = xrealloc_vector(file_list, 2, count);
|
---|
| 1199 | file_list[count++] = line;
|
---|
| 1200 | /*file_list[count] = NULL; - xrealloc_vector did it */
|
---|
[821] | 1201 | }
|
---|
| 1202 | fclose(list_stream);
|
---|
| 1203 |
|
---|
[1765] | 1204 | return file_list;
|
---|
[821] | 1205 | }
|
---|
| 1206 |
|
---|
| 1207 | /* maybe i should try and hook this into remove_file.c somehow */
|
---|
| 1208 | static int remove_file_array(char **remove_names, char **exclude_names)
|
---|
| 1209 | {
|
---|
| 1210 | struct stat path_stat;
|
---|
[1765] | 1211 | int remove_flag = 1; /* not removed anything yet */
|
---|
| 1212 | int i, j;
|
---|
[821] | 1213 |
|
---|
| 1214 | if (remove_names == NULL) {
|
---|
[1765] | 1215 | return 0;
|
---|
[821] | 1216 | }
|
---|
| 1217 | for (i = 0; remove_names[i] != NULL; i++) {
|
---|
| 1218 | if (exclude_names != NULL) {
|
---|
[1765] | 1219 | for (j = 0; exclude_names[j] != NULL; j++) {
|
---|
[821] | 1220 | if (strcmp(remove_names[i], exclude_names[j]) == 0) {
|
---|
[1765] | 1221 | goto skip;
|
---|
[821] | 1222 | }
|
---|
| 1223 | }
|
---|
| 1224 | }
|
---|
[1765] | 1225 | /* TODO: why we are checking lstat? we can just try rm/rmdir */
|
---|
| 1226 | if (lstat(remove_names[i], &path_stat) < 0) {
|
---|
| 1227 | continue;
|
---|
[821] | 1228 | }
|
---|
[1765] | 1229 | if (S_ISDIR(path_stat.st_mode)) {
|
---|
| 1230 | remove_flag &= rmdir(remove_names[i]); /* 0 if no error */
|
---|
| 1231 | } else {
|
---|
| 1232 | remove_flag &= unlink(remove_names[i]); /* 0 if no error */
|
---|
| 1233 | }
|
---|
| 1234 | skip:
|
---|
| 1235 | continue;
|
---|
[821] | 1236 | }
|
---|
[1765] | 1237 | return (remove_flag == 0);
|
---|
[821] | 1238 | }
|
---|
| 1239 |
|
---|
[2725] | 1240 | static void run_package_script_or_die(const char *package_name, const char *script_type)
|
---|
[821] | 1241 | {
|
---|
| 1242 | char *script_path;
|
---|
| 1243 | int result;
|
---|
| 1244 |
|
---|
[1765] | 1245 | script_path = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, script_type);
|
---|
[821] | 1246 |
|
---|
[2725] | 1247 | /* If the file doesnt exist is isnt fatal */
|
---|
| 1248 | result = access(script_path, F_OK) ? EXIT_SUCCESS : system(script_path);
|
---|
[821] | 1249 | free(script_path);
|
---|
[2725] | 1250 | if (result)
|
---|
| 1251 | bb_error_msg_and_die("%s failed, exit code %d", script_type, result);
|
---|
[821] | 1252 | }
|
---|
| 1253 |
|
---|
[2725] | 1254 | /*
|
---|
| 1255 | The policy manual defines what scripts get called when and with
|
---|
| 1256 | what arguments. I realize that busybox does not support all of
|
---|
| 1257 | these scenarios, but it does support some of them; it does not,
|
---|
| 1258 | however, run them with any parameters in run_package_script_or_die().
|
---|
| 1259 | Here are the scripts:
|
---|
| 1260 |
|
---|
| 1261 | preinst install
|
---|
| 1262 | preinst install <old_version>
|
---|
| 1263 | preinst upgrade <old_version>
|
---|
| 1264 | preinst abort_upgrade <new_version>
|
---|
| 1265 | postinst configure <most_recent_version>
|
---|
| 1266 | postinst abort-upgade <new_version>
|
---|
| 1267 | postinst abort-remove
|
---|
| 1268 | postinst abort-remove in-favour <package> <version>
|
---|
| 1269 | postinst abort-deconfigure in-favor <failed_install_package> removing <conflicting_package> <version>
|
---|
| 1270 | prerm remove
|
---|
| 1271 | prerm upgrade <new_version>
|
---|
| 1272 | prerm failed-upgrade <old_version>
|
---|
| 1273 | prerm remove in-favor <package> <new_version>
|
---|
| 1274 | prerm deconfigure in-favour <package> <version> removing <package> <version>
|
---|
| 1275 | postrm remove
|
---|
| 1276 | postrm purge
|
---|
| 1277 | postrm upgrade <new_version>
|
---|
| 1278 | postrm failed-upgrade <old_version>
|
---|
| 1279 | postrm abort-install
|
---|
| 1280 | postrm abort-install <old_version>
|
---|
| 1281 | postrm abort-upgrade <old_version>
|
---|
| 1282 | postrm disappear <overwriter> <version>
|
---|
| 1283 | */
|
---|
[1765] | 1284 | static const char *const all_control_files[] = {
|
---|
| 1285 | "preinst", "postinst", "prerm", "postrm",
|
---|
| 1286 | "list", "md5sums", "shlibs", "conffiles",
|
---|
[2725] | 1287 | "config", "templates"
|
---|
[1765] | 1288 | };
|
---|
[821] | 1289 |
|
---|
| 1290 | static char **all_control_list(const char *package_name)
|
---|
| 1291 | {
|
---|
[1765] | 1292 | unsigned i = 0;
|
---|
[821] | 1293 | char **remove_files;
|
---|
| 1294 |
|
---|
| 1295 | /* Create a list of all /var/lib/dpkg/info/<package> files */
|
---|
[2725] | 1296 | remove_files = xzalloc(sizeof(all_control_files) + sizeof(char*));
|
---|
| 1297 | while (i < ARRAY_SIZE(all_control_files)) {
|
---|
| 1298 | remove_files[i] = xasprintf("/var/lib/dpkg/info/%s.%s",
|
---|
| 1299 | package_name, all_control_files[i]);
|
---|
[821] | 1300 | i++;
|
---|
| 1301 | }
|
---|
| 1302 |
|
---|
[1765] | 1303 | return remove_files;
|
---|
[821] | 1304 | }
|
---|
| 1305 |
|
---|
| 1306 | static void free_array(char **array)
|
---|
| 1307 | {
|
---|
| 1308 | if (array) {
|
---|
[1765] | 1309 | unsigned i = 0;
|
---|
[821] | 1310 | while (array[i]) {
|
---|
| 1311 | free(array[i]);
|
---|
| 1312 | i++;
|
---|
| 1313 | }
|
---|
| 1314 | free(array);
|
---|
| 1315 | }
|
---|
| 1316 | }
|
---|
| 1317 |
|
---|
| 1318 | /* This function lists information on the installed packages. It loops through
|
---|
| 1319 | * the status_hashtable to retrieve the info. This results in smaller code than
|
---|
| 1320 | * scanning the status file. The resulting list, however, is unsorted.
|
---|
| 1321 | */
|
---|
[2725] | 1322 | static void list_packages(const char *pattern)
|
---|
[821] | 1323 | {
|
---|
| 1324 | int i;
|
---|
| 1325 |
|
---|
[1765] | 1326 | puts(" Name Version");
|
---|
| 1327 | puts("+++-==============-==============");
|
---|
[821] | 1328 |
|
---|
| 1329 | /* go through status hash, dereference package hash and finally strings */
|
---|
[1765] | 1330 | for (i = 0; i < STATUS_HASH_PRIME+1; i++) {
|
---|
| 1331 | if (status_hashtable[i]) {
|
---|
| 1332 | const char *stat_str; /* status string */
|
---|
[821] | 1333 | const char *name_str; /* package name */
|
---|
| 1334 | const char *vers_str; /* version */
|
---|
| 1335 | char s1, s2; /* status abbreviations */
|
---|
| 1336 | int spccnt; /* space count */
|
---|
| 1337 | int j;
|
---|
| 1338 |
|
---|
| 1339 | stat_str = name_hashtable[status_hashtable[i]->status];
|
---|
| 1340 | name_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->name];
|
---|
| 1341 | vers_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->version];
|
---|
| 1342 |
|
---|
[2725] | 1343 | if (pattern && fnmatch(pattern, name_str, 0) != 0)
|
---|
| 1344 | continue;
|
---|
| 1345 |
|
---|
[821] | 1346 | /* get abbreviation for status field 1 */
|
---|
| 1347 | s1 = stat_str[0] == 'i' ? 'i' : 'r';
|
---|
| 1348 |
|
---|
| 1349 | /* get abbreviation for status field 2 */
|
---|
[1765] | 1350 | for (j = 0, spccnt = 0; stat_str[j] && spccnt < 2; j++) {
|
---|
| 1351 | if (stat_str[j] == ' ') spccnt++;
|
---|
[821] | 1352 | }
|
---|
| 1353 | s2 = stat_str[j];
|
---|
| 1354 |
|
---|
| 1355 | /* print out the line formatted like Debian dpkg */
|
---|
| 1356 | printf("%c%c %-14s %s\n", s1, s2, name_str, vers_str);
|
---|
| 1357 | }
|
---|
[1765] | 1358 | }
|
---|
[821] | 1359 | }
|
---|
| 1360 |
|
---|
[1765] | 1361 | static void remove_package(const unsigned package_num, int noisy)
|
---|
[821] | 1362 | {
|
---|
| 1363 | const char *package_name = name_hashtable[package_hashtable[package_num]->name];
|
---|
| 1364 | const char *package_version = name_hashtable[package_hashtable[package_num]->version];
|
---|
[1765] | 1365 | const unsigned status_num = search_status_hashtable(package_name);
|
---|
[821] | 1366 | const int package_name_length = strlen(package_name);
|
---|
| 1367 | char **remove_files;
|
---|
| 1368 | char **exclude_files;
|
---|
| 1369 | char list_name[package_name_length + 25];
|
---|
| 1370 | char conffile_name[package_name_length + 30];
|
---|
| 1371 |
|
---|
[1765] | 1372 | if (noisy)
|
---|
| 1373 | printf("Removing %s (%s)...\n", package_name, package_version);
|
---|
[821] | 1374 |
|
---|
[2725] | 1375 | /* Run prerm script */
|
---|
| 1376 | run_package_script_or_die(package_name, "prerm");
|
---|
[821] | 1377 |
|
---|
| 1378 | /* Create a list of files to remove, and a separate list of those to keep */
|
---|
[2725] | 1379 | sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list");
|
---|
[821] | 1380 | remove_files = create_list(list_name);
|
---|
| 1381 |
|
---|
[2725] | 1382 | sprintf(conffile_name, "/var/lib/dpkg/info/%s.%s", package_name, "conffiles");
|
---|
[821] | 1383 | exclude_files = create_list(conffile_name);
|
---|
| 1384 |
|
---|
[1765] | 1385 | /* Some directories can't be removed straight away, so do multiple passes */
|
---|
[2725] | 1386 | while (remove_file_array(remove_files, exclude_files))
|
---|
| 1387 | continue;
|
---|
[821] | 1388 | free_array(exclude_files);
|
---|
| 1389 | free_array(remove_files);
|
---|
| 1390 |
|
---|
[2725] | 1391 | /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep */
|
---|
| 1392 | exclude_files = xzalloc(sizeof(exclude_files[0]) * 3);
|
---|
[1765] | 1393 | exclude_files[0] = xstrdup(conffile_name);
|
---|
[2725] | 1394 | exclude_files[1] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "postrm");
|
---|
[821] | 1395 |
|
---|
| 1396 | /* Create a list of all /var/lib/dpkg/info/<package> files */
|
---|
| 1397 | remove_files = all_control_list(package_name);
|
---|
| 1398 |
|
---|
| 1399 | remove_file_array(remove_files, exclude_files);
|
---|
| 1400 | free_array(remove_files);
|
---|
| 1401 | free_array(exclude_files);
|
---|
| 1402 |
|
---|
[2725] | 1403 | /* rename <package>.conffiles to <package>.list
|
---|
| 1404 | * The conffiles control file isn't required in Debian packages, so don't
|
---|
| 1405 | * error out if it's missing. */
|
---|
[821] | 1406 | rename(conffile_name, list_name);
|
---|
| 1407 |
|
---|
| 1408 | /* Change package status */
|
---|
| 1409 | set_status(status_num, "config-files", 3);
|
---|
| 1410 | }
|
---|
| 1411 |
|
---|
[1765] | 1412 | static void purge_package(const unsigned package_num)
|
---|
[821] | 1413 | {
|
---|
| 1414 | const char *package_name = name_hashtable[package_hashtable[package_num]->name];
|
---|
| 1415 | const char *package_version = name_hashtable[package_hashtable[package_num]->version];
|
---|
[1765] | 1416 | const unsigned status_num = search_status_hashtable(package_name);
|
---|
[821] | 1417 | char **remove_files;
|
---|
| 1418 | char **exclude_files;
|
---|
| 1419 | char list_name[strlen(package_name) + 25];
|
---|
| 1420 |
|
---|
[1765] | 1421 | printf("Purging %s (%s)...\n", package_name, package_version);
|
---|
[821] | 1422 |
|
---|
[2725] | 1423 | /* Run prerm script */
|
---|
| 1424 | run_package_script_or_die(package_name, "prerm");
|
---|
[821] | 1425 |
|
---|
| 1426 | /* Create a list of files to remove */
|
---|
[2725] | 1427 | sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list");
|
---|
[821] | 1428 | remove_files = create_list(list_name);
|
---|
| 1429 |
|
---|
| 1430 | /* Some directories cant be removed straight away, so do multiple passes */
|
---|
[2725] | 1431 | while (remove_file_array(remove_files, NULL))
|
---|
| 1432 | continue;
|
---|
[821] | 1433 | free_array(remove_files);
|
---|
| 1434 |
|
---|
| 1435 | /* Create a list of all /var/lib/dpkg/info/<package> files */
|
---|
| 1436 | remove_files = all_control_list(package_name);
|
---|
[2725] | 1437 |
|
---|
| 1438 | /* Delete all of them except the postrm script */
|
---|
| 1439 | exclude_files = xzalloc(sizeof(exclude_files[0]) * 2);
|
---|
| 1440 | exclude_files[0] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "postrm");
|
---|
[821] | 1441 | remove_file_array(remove_files, exclude_files);
|
---|
[2725] | 1442 | free_array(exclude_files);
|
---|
| 1443 |
|
---|
| 1444 | /* Run and remove postrm script */
|
---|
| 1445 | run_package_script_or_die(package_name, "postrm");
|
---|
| 1446 | remove_file_array(remove_files, NULL);
|
---|
| 1447 |
|
---|
[821] | 1448 | free_array(remove_files);
|
---|
| 1449 |
|
---|
| 1450 | /* Change package status */
|
---|
| 1451 | set_status(status_num, "not-installed", 3);
|
---|
| 1452 | }
|
---|
| 1453 |
|
---|
| 1454 | static archive_handle_t *init_archive_deb_ar(const char *filename)
|
---|
| 1455 | {
|
---|
| 1456 | archive_handle_t *ar_handle;
|
---|
| 1457 |
|
---|
| 1458 | /* Setup an ar archive handle that refers to the gzip sub archive */
|
---|
| 1459 | ar_handle = init_handle();
|
---|
| 1460 | ar_handle->filter = filter_accept_list_reassign;
|
---|
[1765] | 1461 | ar_handle->src_fd = xopen(filename, O_RDONLY);
|
---|
[821] | 1462 |
|
---|
[1765] | 1463 | return ar_handle;
|
---|
[821] | 1464 | }
|
---|
| 1465 |
|
---|
| 1466 | static void init_archive_deb_control(archive_handle_t *ar_handle)
|
---|
| 1467 | {
|
---|
| 1468 | archive_handle_t *tar_handle;
|
---|
| 1469 |
|
---|
| 1470 | /* Setup the tar archive handle */
|
---|
| 1471 | tar_handle = init_handle();
|
---|
| 1472 | tar_handle->src_fd = ar_handle->src_fd;
|
---|
| 1473 |
|
---|
| 1474 | /* We don't care about data.tar.* or debian-binary, just control.tar.* */
|
---|
[3621] | 1475 | llist_add_to(&(ar_handle->accept), (char*)"control.tar");
|
---|
[2725] | 1476 | #if ENABLE_FEATURE_SEAMLESS_GZ
|
---|
[1765] | 1477 | llist_add_to(&(ar_handle->accept), (char*)"control.tar.gz");
|
---|
[821] | 1478 | #endif
|
---|
[2725] | 1479 | #if ENABLE_FEATURE_SEAMLESS_BZ2
|
---|
[1765] | 1480 | llist_add_to(&(ar_handle->accept), (char*)"control.tar.bz2");
|
---|
[821] | 1481 | #endif
|
---|
[3621] | 1482 | #if ENABLE_FEATURE_SEAMLESS_XZ
|
---|
| 1483 | llist_add_to(&(ar_handle->accept), (char*)"control.tar.xz");
|
---|
| 1484 | #endif
|
---|
[821] | 1485 |
|
---|
| 1486 | /* Assign the tar handle as a subarchive of the ar handle */
|
---|
[2725] | 1487 | ar_handle->dpkg__sub_archive = tar_handle;
|
---|
[821] | 1488 | }
|
---|
| 1489 |
|
---|
| 1490 | static void init_archive_deb_data(archive_handle_t *ar_handle)
|
---|
| 1491 | {
|
---|
| 1492 | archive_handle_t *tar_handle;
|
---|
| 1493 |
|
---|
| 1494 | /* Setup the tar archive handle */
|
---|
| 1495 | tar_handle = init_handle();
|
---|
| 1496 | tar_handle->src_fd = ar_handle->src_fd;
|
---|
| 1497 |
|
---|
| 1498 | /* We don't care about control.tar.* or debian-binary, just data.tar.* */
|
---|
[3621] | 1499 | llist_add_to(&(ar_handle->accept), (char*)"data.tar");
|
---|
[2725] | 1500 | #if ENABLE_FEATURE_SEAMLESS_GZ
|
---|
[1765] | 1501 | llist_add_to(&(ar_handle->accept), (char*)"data.tar.gz");
|
---|
[821] | 1502 | #endif
|
---|
[2725] | 1503 | #if ENABLE_FEATURE_SEAMLESS_BZ2
|
---|
[1765] | 1504 | llist_add_to(&(ar_handle->accept), (char*)"data.tar.bz2");
|
---|
[821] | 1505 | #endif
|
---|
[3621] | 1506 | #if ENABLE_FEATURE_SEAMLESS_LZMA
|
---|
| 1507 | llist_add_to(&(ar_handle->accept), (char*)"data.tar.lzma");
|
---|
| 1508 | #endif
|
---|
| 1509 | #if ENABLE_FEATURE_SEAMLESS_XZ
|
---|
| 1510 | llist_add_to(&(ar_handle->accept), (char*)"data.tar.xz");
|
---|
| 1511 | #endif
|
---|
[821] | 1512 |
|
---|
| 1513 | /* Assign the tar handle as a subarchive of the ar handle */
|
---|
[2725] | 1514 | ar_handle->dpkg__sub_archive = tar_handle;
|
---|
[821] | 1515 | }
|
---|
| 1516 |
|
---|
[2725] | 1517 | static void FAST_FUNC data_extract_to_buffer(archive_handle_t *archive_handle)
|
---|
| 1518 | {
|
---|
| 1519 | unsigned size = archive_handle->file_header->size;
|
---|
| 1520 |
|
---|
| 1521 | archive_handle->dpkg__buffer = xzalloc(size + 1);
|
---|
| 1522 | xread(archive_handle->src_fd, archive_handle->dpkg__buffer, size);
|
---|
| 1523 | }
|
---|
| 1524 |
|
---|
[821] | 1525 | static char *deb_extract_control_file_to_buffer(archive_handle_t *ar_handle, llist_t *myaccept)
|
---|
| 1526 | {
|
---|
[2725] | 1527 | ar_handle->dpkg__sub_archive->action_data = data_extract_to_buffer;
|
---|
| 1528 | ar_handle->dpkg__sub_archive->accept = myaccept;
|
---|
| 1529 | ar_handle->dpkg__sub_archive->filter = filter_accept_list;
|
---|
[821] | 1530 |
|
---|
| 1531 | unpack_ar_archive(ar_handle);
|
---|
| 1532 | close(ar_handle->src_fd);
|
---|
| 1533 |
|
---|
[2725] | 1534 | return ar_handle->dpkg__sub_archive->dpkg__buffer;
|
---|
[821] | 1535 | }
|
---|
| 1536 |
|
---|
[2725] | 1537 | static void append_control_file_to_llist(const char *package_name, const char *control_name, llist_t **ll)
|
---|
[821] | 1538 | {
|
---|
[2725] | 1539 | FILE *fp;
|
---|
| 1540 | char *filename, *line;
|
---|
| 1541 |
|
---|
| 1542 | filename = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, control_name);
|
---|
| 1543 | fp = fopen_for_read(filename);
|
---|
| 1544 | free(filename);
|
---|
| 1545 | if (fp != NULL) {
|
---|
| 1546 | while ((line = xmalloc_fgetline(fp)) != NULL)
|
---|
| 1547 | llist_add_to(ll, line);
|
---|
| 1548 | fclose(fp);
|
---|
| 1549 | }
|
---|
| 1550 | }
|
---|
| 1551 |
|
---|
| 1552 | static char FAST_FUNC filter_rename_config(archive_handle_t *archive_handle)
|
---|
| 1553 | {
|
---|
| 1554 | int fd;
|
---|
| 1555 | char *name_ptr = archive_handle->file_header->name + 1;
|
---|
| 1556 |
|
---|
| 1557 | /* Is this file marked as config file? */
|
---|
| 1558 | if (!find_list_entry(archive_handle->accept, name_ptr))
|
---|
| 1559 | return EXIT_SUCCESS; /* no */
|
---|
| 1560 |
|
---|
| 1561 | fd = open(name_ptr, O_RDONLY);
|
---|
| 1562 | if (fd >= 0) {
|
---|
| 1563 | md5_ctx_t md5;
|
---|
| 1564 | char *md5line, *buf;
|
---|
| 1565 | int count;
|
---|
| 1566 |
|
---|
| 1567 | /* Calculate MD5 of existing file */
|
---|
| 1568 | buf = xmalloc(4096);
|
---|
| 1569 | md5_begin(&md5);
|
---|
| 1570 | while ((count = safe_read(fd, buf, 4096)) > 0)
|
---|
| 1571 | md5_hash(&md5, buf, count);
|
---|
| 1572 | md5_end(&md5, buf); /* using buf as result storage */
|
---|
| 1573 | close(fd);
|
---|
| 1574 |
|
---|
| 1575 | md5line = xmalloc(16 * 2 + 2 + strlen(name_ptr) + 1);
|
---|
| 1576 | sprintf(bin2hex(md5line, buf, 16), " %s", name_ptr);
|
---|
| 1577 | free(buf);
|
---|
| 1578 |
|
---|
| 1579 | /* Is it changed after install? */
|
---|
| 1580 | if (find_list_entry(archive_handle->accept, md5line) == NULL) {
|
---|
| 1581 | printf("Warning: Creating %s as %s.dpkg-new\n", name_ptr, name_ptr);
|
---|
| 1582 | archive_handle->file_header->name = xasprintf("%s.dpkg-new", archive_handle->file_header->name);
|
---|
| 1583 | }
|
---|
| 1584 | free(md5line);
|
---|
| 1585 | }
|
---|
| 1586 | return EXIT_SUCCESS;
|
---|
| 1587 | }
|
---|
| 1588 |
|
---|
| 1589 | static void FAST_FUNC data_extract_all_prefix(archive_handle_t *archive_handle)
|
---|
| 1590 | {
|
---|
[821] | 1591 | char *name_ptr = archive_handle->file_header->name;
|
---|
| 1592 |
|
---|
[2725] | 1593 | /* Skip all leading "/" */
|
---|
| 1594 | while (*name_ptr == '/')
|
---|
| 1595 | name_ptr++;
|
---|
| 1596 | /* Skip all leading "./" and "../" */
|
---|
| 1597 | while (name_ptr[0] == '.') {
|
---|
| 1598 | if (name_ptr[1] == '.')
|
---|
| 1599 | name_ptr++;
|
---|
| 1600 | if (name_ptr[1] != '/')
|
---|
| 1601 | break;
|
---|
| 1602 | name_ptr += 2;
|
---|
| 1603 | }
|
---|
| 1604 |
|
---|
[821] | 1605 | if (name_ptr[0] != '\0') {
|
---|
[2725] | 1606 | archive_handle->file_header->name = xasprintf("%s%s", archive_handle->dpkg__buffer, name_ptr);
|
---|
[821] | 1607 | data_extract_all(archive_handle);
|
---|
[2725] | 1608 | if (fnmatch("*.dpkg-new", archive_handle->file_header->name, 0) == 0) {
|
---|
| 1609 | /* remove .dpkg-new suffix */
|
---|
| 1610 | archive_handle->file_header->name[strlen(archive_handle->file_header->name) - 9] = '\0';
|
---|
| 1611 | }
|
---|
[821] | 1612 | }
|
---|
| 1613 | }
|
---|
| 1614 |
|
---|
[2725] | 1615 | enum {
|
---|
| 1616 | /* Commands */
|
---|
| 1617 | OPT_configure = (1 << 0),
|
---|
| 1618 | OPT_install = (1 << 1),
|
---|
| 1619 | OPT_list_installed = (1 << 2),
|
---|
| 1620 | OPT_purge = (1 << 3),
|
---|
| 1621 | OPT_remove = (1 << 4),
|
---|
| 1622 | OPT_unpack = (1 << 5),
|
---|
| 1623 | OPTMASK_cmd = (1 << 6) - 1,
|
---|
| 1624 | /* Options */
|
---|
| 1625 | OPT_force = (1 << 6),
|
---|
| 1626 | OPT_force_ignore_depends = (1 << 7),
|
---|
| 1627 | OPT_force_confnew = (1 << 8),
|
---|
| 1628 | OPT_force_confold = (1 << 9),
|
---|
| 1629 | };
|
---|
| 1630 |
|
---|
[821] | 1631 | static void unpack_package(deb_file_t *deb_file)
|
---|
| 1632 | {
|
---|
| 1633 | const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
|
---|
[1765] | 1634 | const unsigned status_num = search_status_hashtable(package_name);
|
---|
| 1635 | const unsigned status_package_num = status_hashtable[status_num]->package;
|
---|
[821] | 1636 | char *info_prefix;
|
---|
[1765] | 1637 | char *list_filename;
|
---|
[821] | 1638 | archive_handle_t *archive_handle;
|
---|
| 1639 | FILE *out_stream;
|
---|
[2725] | 1640 | llist_t *accept_list;
|
---|
| 1641 | llist_t *conffile_list;
|
---|
| 1642 | int i;
|
---|
[821] | 1643 |
|
---|
| 1644 | /* If existing version, remove it first */
|
---|
[2725] | 1645 | conffile_list = NULL;
|
---|
[821] | 1646 | if (strcmp(name_hashtable[get_status(status_num, 3)], "installed") == 0) {
|
---|
| 1647 | /* Package is already installed, remove old version first */
|
---|
[1765] | 1648 | printf("Preparing to replace %s %s (using %s)...\n", package_name,
|
---|
[821] | 1649 | name_hashtable[package_hashtable[status_package_num]->version],
|
---|
| 1650 | deb_file->filename);
|
---|
[2725] | 1651 |
|
---|
| 1652 | /* Read md5sums from old package */
|
---|
| 1653 | if (!(option_mask32 & OPT_force_confold))
|
---|
| 1654 | append_control_file_to_llist(package_name, "md5sums", &conffile_list);
|
---|
| 1655 |
|
---|
[821] | 1656 | remove_package(status_package_num, 0);
|
---|
| 1657 | } else {
|
---|
[1765] | 1658 | printf("Unpacking %s (from %s)...\n", package_name, deb_file->filename);
|
---|
[821] | 1659 | }
|
---|
| 1660 |
|
---|
| 1661 | /* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */
|
---|
[2725] | 1662 | info_prefix = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "");
|
---|
[821] | 1663 | archive_handle = init_archive_deb_ar(deb_file->filename);
|
---|
| 1664 | init_archive_deb_control(archive_handle);
|
---|
| 1665 |
|
---|
[2725] | 1666 | accept_list = NULL;
|
---|
| 1667 | i = 0;
|
---|
| 1668 | while (i < ARRAY_SIZE(all_control_files)) {
|
---|
[1765] | 1669 | char *c = xasprintf("./%s", all_control_files[i]);
|
---|
[821] | 1670 | llist_add_to(&accept_list, c);
|
---|
| 1671 | i++;
|
---|
| 1672 | }
|
---|
[2725] | 1673 | archive_handle->dpkg__sub_archive->accept = accept_list;
|
---|
| 1674 | archive_handle->dpkg__sub_archive->filter = filter_accept_list;
|
---|
| 1675 | archive_handle->dpkg__sub_archive->action_data = data_extract_all_prefix;
|
---|
| 1676 | archive_handle->dpkg__sub_archive->dpkg__buffer = info_prefix;
|
---|
| 1677 | archive_handle->dpkg__sub_archive->ah_flags |= ARCHIVE_UNLINK_OLD;
|
---|
[821] | 1678 | unpack_ar_archive(archive_handle);
|
---|
| 1679 |
|
---|
| 1680 | /* Run the preinst prior to extracting */
|
---|
[2725] | 1681 | run_package_script_or_die(package_name, "preinst");
|
---|
[821] | 1682 |
|
---|
[2725] | 1683 | /* Don't overwrite existing config files */
|
---|
| 1684 | if (!(option_mask32 & OPT_force_confnew))
|
---|
| 1685 | append_control_file_to_llist(package_name, "conffiles", &conffile_list);
|
---|
| 1686 |
|
---|
[821] | 1687 | /* Extract data.tar.gz to the root directory */
|
---|
| 1688 | archive_handle = init_archive_deb_ar(deb_file->filename);
|
---|
| 1689 | init_archive_deb_data(archive_handle);
|
---|
[2725] | 1690 | archive_handle->dpkg__sub_archive->accept = conffile_list;
|
---|
[3232] | 1691 | /* Why ARCHIVE_REMEMBER_NAMES?
|
---|
| 1692 | * We want names collected in ->passed list even if conffile_list
|
---|
| 1693 | * is NULL (otherwise get_header_tar may optimize name saving out):
|
---|
| 1694 | */
|
---|
| 1695 | archive_handle->dpkg__sub_archive->ah_flags |= ARCHIVE_REMEMBER_NAMES | ARCHIVE_UNLINK_OLD;
|
---|
[2725] | 1696 | archive_handle->dpkg__sub_archive->filter = filter_rename_config;
|
---|
| 1697 | archive_handle->dpkg__sub_archive->action_data = data_extract_all_prefix;
|
---|
| 1698 | archive_handle->dpkg__sub_archive->dpkg__buffer = (char*)"/"; /* huh? */
|
---|
[821] | 1699 | unpack_ar_archive(archive_handle);
|
---|
| 1700 |
|
---|
| 1701 | /* Create the list file */
|
---|
[2725] | 1702 | list_filename = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "list");
|
---|
| 1703 | out_stream = xfopen_for_write(list_filename);
|
---|
[3232] | 1704 | archive_handle->dpkg__sub_archive->passed = llist_rev(archive_handle->dpkg__sub_archive->passed);
|
---|
[2725] | 1705 | while (archive_handle->dpkg__sub_archive->passed) {
|
---|
[3232] | 1706 | char *filename = llist_pop(&archive_handle->dpkg__sub_archive->passed);
|
---|
[821] | 1707 | /* the leading . has been stripped by data_extract_all_prefix already */
|
---|
[3232] | 1708 | fprintf(out_stream, "%s\n", filename);
|
---|
| 1709 | free(filename);
|
---|
[821] | 1710 | }
|
---|
| 1711 | fclose(out_stream);
|
---|
| 1712 |
|
---|
| 1713 | /* change status */
|
---|
| 1714 | set_status(status_num, "install", 1);
|
---|
| 1715 | set_status(status_num, "unpacked", 3);
|
---|
| 1716 |
|
---|
| 1717 | free(info_prefix);
|
---|
[1765] | 1718 | free(list_filename);
|
---|
[821] | 1719 | }
|
---|
| 1720 |
|
---|
| 1721 | static void configure_package(deb_file_t *deb_file)
|
---|
| 1722 | {
|
---|
| 1723 | const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
|
---|
| 1724 | const char *package_version = name_hashtable[package_hashtable[deb_file->package]->version];
|
---|
| 1725 | const int status_num = search_status_hashtable(package_name);
|
---|
| 1726 |
|
---|
[1765] | 1727 | printf("Setting up %s (%s)...\n", package_name, package_version);
|
---|
[821] | 1728 |
|
---|
| 1729 | /* Run the postinst script */
|
---|
[2725] | 1730 | /* TODO: handle failure gracefully */
|
---|
| 1731 | run_package_script_or_die(package_name, "postinst");
|
---|
| 1732 |
|
---|
[821] | 1733 | /* Change status to reflect success */
|
---|
| 1734 | set_status(status_num, "install", 1);
|
---|
| 1735 | set_status(status_num, "installed", 3);
|
---|
| 1736 | }
|
---|
| 1737 |
|
---|
[2725] | 1738 | int dpkg_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
| 1739 | int dpkg_main(int argc UNUSED_PARAM, char **argv)
|
---|
[821] | 1740 | {
|
---|
| 1741 | deb_file_t **deb_file = NULL;
|
---|
| 1742 | status_node_t *status_node;
|
---|
[1765] | 1743 | char *str_f;
|
---|
[821] | 1744 | int opt;
|
---|
| 1745 | int package_num;
|
---|
| 1746 | int deb_count = 0;
|
---|
| 1747 | int state_status;
|
---|
| 1748 | int status_num;
|
---|
| 1749 | int i;
|
---|
[2725] | 1750 | #if ENABLE_LONG_OPTS
|
---|
| 1751 | static const char dpkg_longopts[] ALIGN1 =
|
---|
| 1752 | // FIXME: we use -C non-compatibly, should be:
|
---|
| 1753 | // "-C|--audit Check for broken package(s)"
|
---|
| 1754 | "configure\0" No_argument "C"
|
---|
| 1755 | "force\0" Required_argument "F"
|
---|
| 1756 | "install\0" No_argument "i"
|
---|
| 1757 | "list\0" No_argument "l"
|
---|
| 1758 | "purge\0" No_argument "P"
|
---|
| 1759 | "remove\0" No_argument "r"
|
---|
| 1760 | "unpack\0" No_argument "u"
|
---|
| 1761 | "force-depends\0" No_argument "\xff"
|
---|
| 1762 | "force-confnew\0" No_argument "\xfe"
|
---|
| 1763 | "force-confold\0" No_argument "\xfd"
|
---|
| 1764 | ;
|
---|
| 1765 | #endif
|
---|
[821] | 1766 |
|
---|
[2725] | 1767 | INIT_G();
|
---|
| 1768 |
|
---|
| 1769 | IF_LONG_OPTS(applet_long_options = dpkg_longopts);
|
---|
| 1770 | opt = getopt32(argv, "CilPruF:", &str_f);
|
---|
| 1771 | argv += optind;
|
---|
[1765] | 1772 | //if (opt & OPT_configure) ... // -C
|
---|
[2725] | 1773 | if (opt & OPT_force) { // -F (--force in official dpkg)
|
---|
| 1774 | if (strcmp(str_f, "depends") == 0)
|
---|
| 1775 | opt |= OPT_force_ignore_depends;
|
---|
| 1776 | else if (strcmp(str_f, "confnew") == 0)
|
---|
| 1777 | opt |= OPT_force_confnew;
|
---|
| 1778 | else if (strcmp(str_f, "confold") == 0)
|
---|
| 1779 | opt |= OPT_force_confold;
|
---|
| 1780 | else
|
---|
| 1781 | bb_show_usage();
|
---|
| 1782 | option_mask32 = opt;
|
---|
[821] | 1783 | }
|
---|
[1765] | 1784 | //if (opt & OPT_install) ... // -i
|
---|
| 1785 | //if (opt & OPT_list_installed) ... // -l
|
---|
| 1786 | //if (opt & OPT_purge) ... // -P
|
---|
| 1787 | //if (opt & OPT_remove) ... // -r
|
---|
| 1788 | //if (opt & OPT_unpack) ... // -u (--unpack in official dpkg)
|
---|
[2725] | 1789 | if (!(opt & OPTMASK_cmd) /* no cmd */
|
---|
| 1790 | || ((opt & OPTMASK_cmd) & ((opt & OPTMASK_cmd)-1)) /* more than one cmd */
|
---|
| 1791 | ) {
|
---|
[821] | 1792 | bb_show_usage();
|
---|
[2725] | 1793 | }
|
---|
[821] | 1794 |
|
---|
| 1795 | /* puts("(Reading database ... xxxxx files and directories installed.)"); */
|
---|
| 1796 | index_status_file("/var/lib/dpkg/status");
|
---|
| 1797 |
|
---|
| 1798 | /* if the list action was given print the installed packages and exit */
|
---|
[1765] | 1799 | if (opt & OPT_list_installed) {
|
---|
[2725] | 1800 | list_packages(argv[0]); /* param can be NULL */
|
---|
[1765] | 1801 | return EXIT_SUCCESS;
|
---|
[821] | 1802 | }
|
---|
| 1803 |
|
---|
| 1804 | /* Read arguments and store relevant info in structs */
|
---|
[1765] | 1805 | while (*argv) {
|
---|
[821] | 1806 | /* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */
|
---|
[2725] | 1807 | deb_file = xrealloc_vector(deb_file, 2, deb_count);
|
---|
[1765] | 1808 | deb_file[deb_count] = xzalloc(sizeof(deb_file[0][0]));
|
---|
| 1809 | if (opt & (OPT_install | OPT_unpack)) {
|
---|
| 1810 | /* -i/-u: require filename */
|
---|
[821] | 1811 | archive_handle_t *archive_handle;
|
---|
| 1812 | llist_t *control_list = NULL;
|
---|
| 1813 |
|
---|
| 1814 | /* Extract the control file */
|
---|
[1765] | 1815 | llist_add_to(&control_list, (char*)"./control");
|
---|
| 1816 | archive_handle = init_archive_deb_ar(argv[0]);
|
---|
[821] | 1817 | init_archive_deb_control(archive_handle);
|
---|
| 1818 | deb_file[deb_count]->control_file = deb_extract_control_file_to_buffer(archive_handle, control_list);
|
---|
| 1819 | if (deb_file[deb_count]->control_file == NULL) {
|
---|
[2725] | 1820 | bb_error_msg_and_die("can't extract control file");
|
---|
[821] | 1821 | }
|
---|
[1765] | 1822 | deb_file[deb_count]->filename = xstrdup(argv[0]);
|
---|
[821] | 1823 | package_num = fill_package_struct(deb_file[deb_count]->control_file);
|
---|
| 1824 |
|
---|
| 1825 | if (package_num == -1) {
|
---|
[1765] | 1826 | bb_error_msg("invalid control file in %s", argv[0]);
|
---|
| 1827 | argv++;
|
---|
[821] | 1828 | continue;
|
---|
| 1829 | }
|
---|
[1765] | 1830 | deb_file[deb_count]->package = (unsigned) package_num;
|
---|
[821] | 1831 |
|
---|
| 1832 | /* Add the package to the status hashtable */
|
---|
[1765] | 1833 | if (opt & (OPT_unpack | OPT_install)) {
|
---|
[821] | 1834 | /* Try and find a currently installed version of this package */
|
---|
| 1835 | status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
|
---|
| 1836 | /* If no previous entry was found initialise a new entry */
|
---|
[1765] | 1837 | if (status_hashtable[status_num] == NULL
|
---|
| 1838 | || status_hashtable[status_num]->status == 0
|
---|
| 1839 | ) {
|
---|
| 1840 | status_node = xmalloc(sizeof(status_node_t));
|
---|
[821] | 1841 | status_node->package = deb_file[deb_count]->package;
|
---|
| 1842 | /* reinstreq isnt changed to "ok" until the package control info
|
---|
| 1843 | * is written to the status file*/
|
---|
| 1844 | status_node->status = search_name_hashtable("install reinstreq not-installed");
|
---|
| 1845 | status_hashtable[status_num] = status_node;
|
---|
| 1846 | } else {
|
---|
| 1847 | set_status(status_num, "install", 1);
|
---|
| 1848 | set_status(status_num, "reinstreq", 2);
|
---|
| 1849 | }
|
---|
| 1850 | }
|
---|
[1765] | 1851 | } else if (opt & (OPT_configure | OPT_purge | OPT_remove)) {
|
---|
| 1852 | /* -C/-p/-r: require package name */
|
---|
[821] | 1853 | deb_file[deb_count]->package = search_package_hashtable(
|
---|
[1765] | 1854 | search_name_hashtable(argv[0]),
|
---|
| 1855 | search_name_hashtable("ANY"), VER_ANY);
|
---|
[821] | 1856 | if (package_hashtable[deb_file[deb_count]->package] == NULL) {
|
---|
[1765] | 1857 | bb_error_msg_and_die("package %s is uninstalled or unknown", argv[0]);
|
---|
[821] | 1858 | }
|
---|
| 1859 | package_num = deb_file[deb_count]->package;
|
---|
| 1860 | status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
|
---|
| 1861 | state_status = get_status(status_num, 3);
|
---|
| 1862 |
|
---|
| 1863 | /* check package status is "installed" */
|
---|
[1765] | 1864 | if (opt & OPT_remove) {
|
---|
| 1865 | if (strcmp(name_hashtable[state_status], "not-installed") == 0
|
---|
| 1866 | || strcmp(name_hashtable[state_status], "config-files") == 0
|
---|
| 1867 | ) {
|
---|
| 1868 | bb_error_msg_and_die("%s is already removed", name_hashtable[package_hashtable[package_num]->name]);
|
---|
[821] | 1869 | }
|
---|
| 1870 | set_status(status_num, "deinstall", 1);
|
---|
[1765] | 1871 | } else if (opt & OPT_purge) {
|
---|
[821] | 1872 | /* if package status is "conf-files" then its ok */
|
---|
| 1873 | if (strcmp(name_hashtable[state_status], "not-installed") == 0) {
|
---|
[1765] | 1874 | bb_error_msg_and_die("%s is already purged", name_hashtable[package_hashtable[package_num]->name]);
|
---|
[821] | 1875 | }
|
---|
| 1876 | set_status(status_num, "purge", 1);
|
---|
| 1877 | }
|
---|
| 1878 | }
|
---|
| 1879 | deb_count++;
|
---|
[1765] | 1880 | argv++;
|
---|
[821] | 1881 | }
|
---|
[1765] | 1882 | if (!deb_count)
|
---|
| 1883 | bb_error_msg_and_die("no package files specified");
|
---|
[821] | 1884 | deb_file[deb_count] = NULL;
|
---|
| 1885 |
|
---|
| 1886 | /* Check that the deb file arguments are installable */
|
---|
[1765] | 1887 | if (!(opt & OPT_force_ignore_depends)) {
|
---|
[2725] | 1888 | if (!check_deps(deb_file, 0 /*, deb_count*/)) {
|
---|
[1765] | 1889 | bb_error_msg_and_die("dependency check failed");
|
---|
[821] | 1890 | }
|
---|
| 1891 | }
|
---|
| 1892 |
|
---|
| 1893 | /* TODO: install or remove packages in the correct dependency order */
|
---|
| 1894 | for (i = 0; i < deb_count; i++) {
|
---|
| 1895 | /* Remove or purge packages */
|
---|
[1765] | 1896 | if (opt & OPT_remove) {
|
---|
[821] | 1897 | remove_package(deb_file[i]->package, 1);
|
---|
| 1898 | }
|
---|
[1765] | 1899 | else if (opt & OPT_purge) {
|
---|
[821] | 1900 | purge_package(deb_file[i]->package);
|
---|
| 1901 | }
|
---|
[1765] | 1902 | else if (opt & OPT_unpack) {
|
---|
[821] | 1903 | unpack_package(deb_file[i]);
|
---|
| 1904 | }
|
---|
[1765] | 1905 | else if (opt & OPT_install) {
|
---|
[821] | 1906 | unpack_package(deb_file[i]);
|
---|
| 1907 | /* package is configured in second pass below */
|
---|
| 1908 | }
|
---|
[1765] | 1909 | else if (opt & OPT_configure) {
|
---|
[821] | 1910 | configure_package(deb_file[i]);
|
---|
| 1911 | }
|
---|
| 1912 | }
|
---|
| 1913 | /* configure installed packages */
|
---|
[1765] | 1914 | if (opt & OPT_install) {
|
---|
[821] | 1915 | for (i = 0; i < deb_count; i++)
|
---|
| 1916 | configure_package(deb_file[i]);
|
---|
| 1917 | }
|
---|
| 1918 |
|
---|
| 1919 | write_status_file(deb_file);
|
---|
| 1920 |
|
---|
[1765] | 1921 | if (ENABLE_FEATURE_CLEAN_UP) {
|
---|
| 1922 | for (i = 0; i < deb_count; i++) {
|
---|
| 1923 | free(deb_file[i]->control_file);
|
---|
| 1924 | free(deb_file[i]->filename);
|
---|
| 1925 | free(deb_file[i]);
|
---|
| 1926 | }
|
---|
[821] | 1927 |
|
---|
[1765] | 1928 | free(deb_file);
|
---|
[821] | 1929 |
|
---|
[1765] | 1930 | for (i = 0; i < NAME_HASH_PRIME; i++) {
|
---|
| 1931 | free(name_hashtable[i]);
|
---|
| 1932 | }
|
---|
[821] | 1933 |
|
---|
[1765] | 1934 | for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
|
---|
[821] | 1935 | free_package(package_hashtable[i]);
|
---|
| 1936 | }
|
---|
| 1937 |
|
---|
[1765] | 1938 | for (i = 0; i < STATUS_HASH_PRIME; i++) {
|
---|
| 1939 | free(status_hashtable[i]);
|
---|
| 1940 | }
|
---|
| 1941 |
|
---|
| 1942 | free(status_hashtable);
|
---|
| 1943 | free(package_hashtable);
|
---|
| 1944 | free(name_hashtable);
|
---|
[821] | 1945 | }
|
---|
| 1946 |
|
---|
[1765] | 1947 | return EXIT_SUCCESS;
|
---|
[821] | 1948 | }
|
---|