libopkg/pkg.c

   1 /* pkg.c - the opkg package management system
   2
   3    Carl D. Worth
   4
   5    Copyright (C) 2001 University of Southern California
   6
   7    This program is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU General Public License as
   9    published by the Free Software Foundation; either version 2, or (at
  10    your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful, but
  13    WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    General Public License for more details.
  16 */
  17
  18 #include "config.h"
  19
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <ctype.h>
  23 #include <unistd.h>
  24 #include <libgen.h>
  25
  26 #include "pkg.h"
  27
  28 #include "pkg_parse.h"
  29 #include "pkg_extract.h"
  30 #include "opkg_message.h"
  31 #include "opkg_utils.h"
  32
  33 #include "libbb/libbb.h"
  34 #include "sprintf_alloc.h"
  35 #include "file_util.h"
  36 #include "xsystem.h"
  37 #include "opkg_conf.h"
  38
  39 typedef struct enum_map enum_map_t;
  40 struct enum_map {
  41         unsigned int value;
  42         const char *str;
  43 };
  44
  45 static const enum_map_t pkg_state_want_map[] = {
  46         {SW_UNKNOWN, "unknown"},
  47         {SW_INSTALL, "install"},
  48         {SW_DEINSTALL, "deinstall"},
  49         {SW_PURGE, "purge"}
  50 };
  51
  52 static const enum_map_t pkg_state_flag_map[] = {
  53         {SF_OK, "ok"},
  54         {SF_REINSTREQ, "reinstreq"},
  55         {SF_HOLD, "hold"},
  56         {SF_REPLACE, "replace"},
  57         {SF_NOPRUNE, "noprune"},
  58         {SF_PREFER, "prefer"},
  59         {SF_OBSOLETE, "obsolete"},
  60         {SF_USER, "user"},
  61 };
  62
  63 static const enum_map_t pkg_state_status_map[] = {
  64         {SS_NOT_INSTALLED, "not-installed"},
  65         {SS_UNPACKED, "unpacked"},
  66         {SS_HALF_CONFIGURED, "half-configured"},
  67         {SS_INSTALLED, "installed"},
  68         {SS_HALF_INSTALLED, "half-installed"},
  69         {SS_CONFIG_FILES, "config-files"},
  70         {SS_POST_INST_FAILED, "post-inst-failed"},
  71         {SS_REMOVAL_FAILED, "removal-failed"}
  72 };
  73
  74 static void pkg_init(pkg_t * pkg)
  75 {
  76         pkg->name = NULL;
  77         pkg->dest = NULL;
  78         pkg->src = NULL;
  79         pkg->state_want = SW_UNKNOWN;
  80         pkg->state_flag = SF_OK;
  81         pkg->state_status = SS_NOT_INSTALLED;
  82
  83         pkg->installed_files = NULL;
  84         pkg->installed_files_ref_cnt = 0;
  85         pkg->essential = 0;
  86         pkg->provided_by_hand = 0;
  87
  88         pkg->arch_index = 0;
  89
  90         blob_buf_init(&pkg->blob, 0);
  91 }
  92
  93 pkg_t *pkg_new(void)
  94 {
  95         pkg_t *pkg;
  96
  97         pkg = xcalloc(1, sizeof(pkg_t));
  98         pkg_init(pkg);
  99
 100         return pkg;
 101 }
 102
 103 void *pkg_set_raw(pkg_t *pkg, int id, const void *val, size_t len)
 104 {
 105         int rem;
 106         struct blob_attr *cur;
 107
 108         blob_for_each_attr(cur, pkg->blob.head, rem) {
 109                 if (blob_id(cur) == id) {
 110                         if (blob_len(cur) < len) {
 111                                 fprintf(stderr, "ERROR: truncating field %d <%p> to %d byte",
 112                                         id, val, blob_len(cur));
 113                         }
 114                         memcpy(blob_data(cur), val, blob_len(cur));
 115                         return blob_data(cur);
 116                 }
 117         }
 118
 119         cur = blob_put(&pkg->blob, id, val, len);
 120         return cur ? blob_data(cur) : NULL;
 121 }
 122
 123 void *pkg_get_raw(const pkg_t * pkg, int id)
 124 {
 125         int rem;
 126         struct blob_attr *cur;
 127
 128         blob_for_each_attr(cur, pkg->blob.head, rem)
 129                 if (blob_id(cur) == id)
 130                         return blob_data(cur);
 131
 132         return NULL;
 133 }
 134
 135 char *pkg_set_string(pkg_t *pkg, int id, const char *s)
 136 {
 137         size_t len;
 138         char *p;
 139
 140         if (!s)
 141                 return NULL;
 142
 143         len = strlen(s);
 144
 145         while (isspace(*s)) {
 146                 s++;
 147                 len--;
 148         }
 149
 150         while (len > 0 && isspace(s[len - 1]))
 151                 len--;
 152
 153         if (!len)
 154                 return NULL;
 155
 156         p = pkg_set_raw(pkg, id, s, len + 1);
 157         p[len] = 0;
 158
 159         return p;
 160 }
 161
 162 char *pkg_get_architecture(const pkg_t *pkg)
 163 {
 164         nv_pair_list_elt_t *l;
 165         int n = 1;
 166
 167         list_for_each_entry(l, &conf->arch_list.head, node) {
 168                 nv_pair_t *nv = (nv_pair_t *) l->data;
 169                 if (n++ == pkg->arch_index)
 170                         return nv->name;
 171         }
 172
 173         return NULL;
 174 }
 175
 176 char *pkg_set_architecture(pkg_t *pkg, const char *architecture, ssize_t len)
 177 {
 178         nv_pair_list_elt_t *l;
 179         int n = 1;
 180
 181         list_for_each_entry(l, &conf->arch_list.head, node) {
 182                 nv_pair_t *nv = (nv_pair_t *) l->data;
 183
 184                 if (!strncmp(nv->name, architecture, len) && nv->name[len] == '\0') {
 185                         if (n >= 8) {
 186                                 opkg_msg(ERROR, "Internal error: too many different architectures\n");
 187                                 break;
 188                         }
 189
 190                         pkg->arch_index = n;
 191                         return nv->name;
 192                 }
 193
 194                 n++;
 195         }
 196
 197         pkg->arch_index = 0;
 198         return NULL;
 199 }
 200
 201 int pkg_get_arch_priority(const pkg_t *pkg)
 202 {
 203         nv_pair_list_elt_t *l;
 204         int n = 1;
 205
 206         list_for_each_entry(l, &conf->arch_list.head, node) {
 207                 nv_pair_t *nv = (nv_pair_t *) l->data;
 208                 if (n++ == pkg->arch_index)
 209                         return strtol(nv->value, NULL, 0);
 210         }
 211
 212         return 0;
 213 }
 214
 215 char *pkg_get_md5(const pkg_t *pkg)
 216 {
 217         char *p = pkg_get_raw(pkg, PKG_MD5SUM);
 218
 219         if (!p)
 220                 return NULL;
 221
 222         return checksum_bin2hex(p, 16);
 223 }
 224
 225 char *pkg_set_md5(pkg_t *pkg, const char *cksum)
 226 {
 227         size_t len;
 228         char *p = checksum_hex2bin(cksum, &len);
 229
 230         if (!p || len != 16)
 231                 return NULL;
 232
 233         return pkg_set_raw(pkg, PKG_MD5SUM, p, len);
 234 }
 235
 236 char *pkg_get_sha256(const pkg_t *pkg)
 237 {
 238         char *p = pkg_get_raw(pkg, PKG_SHA256SUM);
 239
 240         if (!p)
 241                 return NULL;
 242
 243         return checksum_bin2hex(p, 32);
 244 }
 245
 246 char *pkg_set_sha256(pkg_t *pkg, const char *cksum)
 247 {
 248         size_t len;
 249         char *p = checksum_hex2bin(cksum, &len);
 250
 251         if (!p || len != 32)
 252                 return NULL;
 253
 254         return pkg_set_raw(pkg, PKG_SHA256SUM, p, len);
 255 }
 256
 257
 258 static void compound_depend_deinit(compound_depend_t * depends)
 259 {
 260         int i;
 261         for (i = 0; i < depends->possibility_count; i++) {
 262                 depend_t *d;
 263                 d = depends->possibilities[i];
 264                 free(d->version);
 265                 free(d);
 266         }
 267         free(depends->possibilities);
 268 }
 269
 270 void pkg_deinit(pkg_t * pkg)
 271 {
 272         compound_depend_t *deps, *dep;
 273
 274         if (pkg->name)
 275                 free(pkg->name);
 276         pkg->name = NULL;
 277
 278         /* owned by opkg_conf_t */
 279         pkg->dest = NULL;
 280         /* owned by opkg_conf_t */
 281         pkg->src = NULL;
 282
 283         pkg->state_want = SW_UNKNOWN;
 284         pkg->state_flag = SF_OK;
 285         pkg->state_status = SS_NOT_INSTALLED;
 286
 287         deps = pkg_get_ptr(pkg, PKG_DEPENDS);
 288
 289         if (deps) {
 290                 for (dep = deps; dep->type; dep++)
 291                         compound_depend_deinit(dep);
 292
 293                 free(deps);
 294                 pkg_set_ptr(pkg, PKG_DEPENDS, NULL);
 295         }
 296
 297         deps = pkg_get_ptr(pkg, PKG_CONFLICTS);
 298
 299         if (deps) {
 300                 for (dep = deps; dep->type; dep++)
 301                         compound_depend_deinit(dep);
 302
 303                 free(deps);
 304                 pkg_set_ptr(pkg, PKG_CONFLICTS, NULL);
 305         }
 306
 307         //conffile_list_deinit(&pkg->conffiles);
 308
 309         /* XXX: QUESTION: Is forcing this to 1 correct? I suppose so,
 310            since if they are calling deinit, they should know. Maybe do an
 311            assertion here instead? */
 312         pkg->installed_files_ref_cnt = 1;
 313         pkg_free_installed_files(pkg);
 314         pkg->essential = 0;
 315
 316         //blob_buf_free(&pkg->blob);
 317 }
 318
 319 int pkg_init_from_file(pkg_t * pkg, const char *filename)
 320 {
 321         int fd, err = 0;
 322         FILE *control_file;
 323         char *control_path, *tmp;
 324
 325         pkg_init(pkg);
 326
 327         pkg_set_string(pkg, PKG_LOCAL_FILENAME, filename);
 328
 329         tmp = xstrdup(filename);
 330         sprintf_alloc(&control_path, "%s/%s.control.XXXXXX",
 331                       conf->tmp_dir, basename(tmp));
 332         free(tmp);
 333         fd = mkstemp(control_path);
 334         if (fd == -1) {
 335                 opkg_perror(ERROR, "Failed to make temp file %s", control_path);
 336                 err = -1;
 337                 goto err0;
 338         }
 339
 340         control_file = fdopen(fd, "r+");
 341         if (control_file == NULL) {
 342                 opkg_perror(ERROR, "Failed to fdopen %s", control_path);
 343                 close(fd);
 344                 err = -1;
 345                 goto err1;
 346         }
 347
 348         err = pkg_extract_control_file_to_stream(pkg, control_file);
 349         if (err) {
 350                 opkg_msg(ERROR, "Failed to extract control file from %s.\n",
 351                          filename);
 352                 goto err2;
 353         }
 354
 355         rewind(control_file);
 356
 357         if ((err = pkg_parse_from_stream(pkg, control_file, 0))) {
 358                 if (err == 1) {
 359                         opkg_msg(ERROR, "Malformed package file %s.\n",
 360                                  filename);
 361                 }
 362                 err = -1;
 363         }
 364
 365 err2:
 366         fclose(control_file);
 367 err1:
 368         unlink(control_path);
 369 err0:
 370         free(control_path);
 371
 372         return err;
 373 }
 374
 375 /* Merge any new information in newpkg into oldpkg */
 376 int pkg_merge(pkg_t * oldpkg, pkg_t * newpkg)
 377 {
 378         abstract_pkg_t **ab;
 379         conffile_list_t *cf, head;
 380
 381         if (oldpkg == newpkg) {
 382                 return 0;
 383         }
 384
 385         if (!oldpkg->auto_installed)
 386                 oldpkg->auto_installed = newpkg->auto_installed;
 387
 388         if (!oldpkg->src)
 389                 oldpkg->src = newpkg->src;
 390         if (!oldpkg->dest)
 391                 oldpkg->dest = newpkg->dest;
 392         if (!oldpkg->arch_index)
 393                 oldpkg->arch_index = newpkg->arch_index;
 394         if (!pkg_get_string(oldpkg, PKG_SECTION))
 395                 pkg_set_string(oldpkg, PKG_SECTION, pkg_get_string(newpkg, PKG_SECTION));
 396         if (!pkg_get_string(oldpkg, PKG_MAINTAINER))
 397                 pkg_set_string(oldpkg, PKG_MAINTAINER, pkg_get_string(newpkg, PKG_MAINTAINER));
 398         if (!pkg_get_string(oldpkg, PKG_DESCRIPTION))
 399                 pkg_set_string(oldpkg, PKG_DESCRIPTION, pkg_get_string(newpkg, PKG_DESCRIPTION));
 400
 401         if (!pkg_get_ptr(oldpkg, PKG_DEPENDS)) {
 402                 pkg_set_ptr(oldpkg, PKG_DEPENDS, pkg_get_ptr(newpkg, PKG_DEPENDS));
 403                 pkg_set_ptr(newpkg, PKG_DEPENDS, NULL);
 404         }
 405
 406         ab = pkg_get_ptr(oldpkg, PKG_PROVIDES);
 407
 408         if (!ab || !ab[0] || !ab[1]) {
 409                 pkg_set_ptr(oldpkg, PKG_PROVIDES, pkg_get_ptr(newpkg, PKG_PROVIDES));
 410                 pkg_set_ptr(newpkg, PKG_PROVIDES, NULL);
 411         }
 412
 413         if (!pkg_get_ptr(oldpkg, PKG_CONFLICTS)) {
 414                 pkg_set_ptr(oldpkg, PKG_CONFLICTS, pkg_get_ptr(newpkg, PKG_CONFLICTS));
 415                 pkg_set_ptr(newpkg, PKG_CONFLICTS, NULL);
 416         }
 417
 418         if (!pkg_get_ptr(oldpkg, PKG_REPLACES)) {
 419                 pkg_set_ptr(oldpkg, PKG_REPLACES, pkg_get_ptr(newpkg, PKG_REPLACES));
 420                 pkg_set_ptr(newpkg, PKG_REPLACES, NULL);
 421         }
 422
 423         if (!pkg_get_string(oldpkg, PKG_FILENAME))
 424                 pkg_set_string(oldpkg, PKG_FILENAME, pkg_get_string(newpkg, PKG_FILENAME));
 425         if (!pkg_get_string(oldpkg, PKG_LOCAL_FILENAME))
 426                 pkg_set_string(oldpkg, PKG_LOCAL_FILENAME, pkg_get_string(newpkg, PKG_LOCAL_FILENAME));
 427         if (!pkg_get_string(oldpkg, PKG_TMP_UNPACK_DIR))
 428                 pkg_set_string(oldpkg, PKG_TMP_UNPACK_DIR, pkg_get_string(newpkg, PKG_TMP_UNPACK_DIR));
 429         if (!pkg_get_md5(oldpkg))
 430                 pkg_set_md5(oldpkg, pkg_get_md5(newpkg));
 431         if (!pkg_get_sha256(oldpkg))
 432                 pkg_set_sha256(oldpkg, pkg_get_sha256(newpkg));
 433         if (!pkg_get_int(oldpkg, PKG_SIZE))
 434                 pkg_set_int(oldpkg, PKG_SIZE, pkg_get_int(newpkg, PKG_SIZE));
 435         if (!pkg_get_int(oldpkg, PKG_INSTALLED_SIZE))
 436                 pkg_set_int(oldpkg, PKG_INSTALLED_SIZE, pkg_get_int(newpkg, PKG_INSTALLED_SIZE));
 437         if (!pkg_get_string(oldpkg, PKG_PRIORITY))
 438                 pkg_set_string(oldpkg, PKG_PRIORITY, pkg_get_string(newpkg, PKG_PRIORITY));
 439         if (!pkg_get_string(oldpkg, PKG_SOURCE))
 440                 pkg_set_string(oldpkg, PKG_SOURCE, pkg_get_string(newpkg, PKG_SOURCE));
 441
 442         if (!pkg_get_ptr(oldpkg, PKG_CONFFILES)) {
 443                 cf = pkg_get_ptr(newpkg, PKG_CONFFILES);
 444                 if (cf) {
 445                         conffile_list_init(&head);
 446                         list_splice_init(&cf->head, &head.head);
 447                         pkg_set_raw(oldpkg, PKG_CONFFILES, &head, sizeof(head));
 448                 }
 449         }
 450
 451         if (!oldpkg->installed_files) {
 452                 oldpkg->installed_files = newpkg->installed_files;
 453                 oldpkg->installed_files_ref_cnt =
 454                     newpkg->installed_files_ref_cnt;
 455                 newpkg->installed_files = NULL;
 456         }
 457
 458         if (!oldpkg->essential)
 459                 oldpkg->essential = newpkg->essential;
 460
 461         return 0;
 462 }
 463
 464 static void abstract_pkg_init(abstract_pkg_t * ab_pkg)
 465 {
 466         ab_pkg->provided_by = abstract_pkg_vec_alloc();
 467         ab_pkg->dependencies_checked = 0;
 468         ab_pkg->state_status = SS_NOT_INSTALLED;
 469 }
 470
 471 abstract_pkg_t *abstract_pkg_new(void)
 472 {
 473         abstract_pkg_t *ab_pkg;
 474
 475         ab_pkg = xcalloc(1, sizeof(abstract_pkg_t));
 476         abstract_pkg_init(ab_pkg);
 477
 478         return ab_pkg;
 479 }
 480
 481 void set_flags_from_control(pkg_t * pkg)
 482 {
 483         char *file_name;
 484         FILE *fp;
 485
 486         sprintf_alloc(&file_name, "%s/%s.control", pkg->dest->info_dir,
 487                       pkg->name);
 488
 489         fp = fopen(file_name, "r");
 490         if (fp == NULL) {
 491                 opkg_perror(ERROR, "Failed to open %s", file_name);
 492                 free(file_name);
 493                 return;
 494         }
 495
 496         free(file_name);
 497
 498         if (pkg_parse_from_stream(pkg, fp, PFM_ALL ^ PFM_ESSENTIAL)) {
 499                 opkg_msg(DEBUG,
 500                          "Unable to read control file for %s. May be empty.\n",
 501                          pkg->name);
 502         }
 503
 504         fclose(fp);
 505
 506         return;
 507 }
 508
 509 static const char *pkg_state_want_to_str(pkg_state_want_t sw)
 510 {
 511         int i;
 512
 513         for (i = 0; i < ARRAY_SIZE(pkg_state_want_map); i++) {
 514                 if (pkg_state_want_map[i].value == sw) {
 515                         return pkg_state_want_map[i].str;
 516                 }
 517         }
 518
 519         opkg_msg(ERROR, "Internal error: state_want=%d\n", sw);
 520         return "<STATE_WANT_UNKNOWN>";
 521 }
 522
 523 pkg_state_want_t pkg_state_want_from_str(char *str)
 524 {
 525         int i;
 526
 527         for (i = 0; i < ARRAY_SIZE(pkg_state_want_map); i++) {
 528                 if (strcmp(str, pkg_state_want_map[i].str) == 0) {
 529                         return pkg_state_want_map[i].value;
 530                 }
 531         }
 532
 533         opkg_msg(ERROR, "Internal error: state_want=%s\n", str);
 534         return SW_UNKNOWN;
 535 }
 536
 537 static char *pkg_state_flag_to_str(pkg_state_flag_t sf)
 538 {
 539         int i;
 540         unsigned int len;
 541         char *str;
 542
 543         /* clear the temporary flags before converting to string */
 544         sf &= SF_NONVOLATILE_FLAGS;
 545
 546         if (sf == 0)
 547                 return xstrdup("ok");
 548
 549         len = 0;
 550         for (i = 0; i < ARRAY_SIZE(pkg_state_flag_map); i++) {
 551                 if (sf & pkg_state_flag_map[i].value)
 552                         len += strlen(pkg_state_flag_map[i].str) + 1;
 553         }
 554
 555         str = xmalloc(len + 1);
 556         str[0] = '\0';
 557
 558         for (i = 0; i < ARRAY_SIZE(pkg_state_flag_map); i++) {
 559                 if (sf & pkg_state_flag_map[i].value) {
 560                         strncat(str, pkg_state_flag_map[i].str, len);
 561                         strncat(str, ",", len);
 562                 }
 563         }
 564
 565         len = strlen(str);
 566         str[len - 1] = '\0';    /* squash last comma */
 567
 568         return str;
 569 }
 570
 571 pkg_state_flag_t pkg_state_flag_from_str(const char *str)
 572 {
 573         int i;
 574         int sf = SF_OK;
 575         const char *sfname;
 576         unsigned int sfname_len;
 577
 578         if (strcmp(str, "ok") == 0) {
 579                 return SF_OK;
 580         }
 581         for (i = 0; i < ARRAY_SIZE(pkg_state_flag_map); i++) {
 582                 sfname = pkg_state_flag_map[i].str;
 583                 sfname_len = strlen(sfname);
 584                 if (strncmp(str, sfname, sfname_len) == 0) {
 585                         sf |= pkg_state_flag_map[i].value;
 586                         str += sfname_len;
 587                         if (str[0] == ',') {
 588                                 str++;
 589                         } else {
 590                                 break;
 591                         }
 592                 }
 593         }
 594
 595         return sf;
 596 }
 597
 598 static const char *pkg_state_status_to_str(pkg_state_status_t ss)
 599 {
 600         int i;
 601
 602         for (i = 0; i < ARRAY_SIZE(pkg_state_status_map); i++) {
 603                 if (pkg_state_status_map[i].value == ss) {
 604                         return pkg_state_status_map[i].str;
 605                 }
 606         }
 607
 608         opkg_msg(ERROR, "Internal error: state_status=%d\n", ss);
 609         return "<STATE_STATUS_UNKNOWN>";
 610 }
 611
 612 pkg_state_status_t pkg_state_status_from_str(const char *str)
 613 {
 614         int i;
 615
 616         for (i = 0; i < ARRAY_SIZE(pkg_state_status_map); i++) {
 617                 if (strcmp(str, pkg_state_status_map[i].str) == 0) {
 618                         return pkg_state_status_map[i].value;
 619                 }
 620         }
 621
 622         opkg_msg(ERROR, "Internal error: state_status=%s\n", str);
 623         return SS_NOT_INSTALLED;
 624 }
 625
 626 void pkg_formatted_field(FILE * fp, pkg_t * pkg, const char *field)
 627 {
 628         int i, j;
 629         char *str;
 630         const char *p;
 631         compound_depend_t *dep;
 632         abstract_pkg_t **ab_pkg;
 633
 634         if (strlen(field) < PKG_MINIMUM_FIELD_NAME_LEN) {
 635                 goto UNKNOWN_FMT_FIELD;
 636         }
 637
 638         switch (field[0]) {
 639         case 'a':
 640         case 'A':
 641                 if (strcasecmp(field, "Architecture") == 0) {
 642                         p = pkg_get_architecture(pkg);
 643                         if (p) {
 644                                 fprintf(fp, "Architecture: %s\n",
 645                                         p);
 646                         }
 647                 } else if (strcasecmp(field, "Auto-Installed") == 0) {
 648                         if (pkg->auto_installed)
 649                                 fprintf(fp, "Auto-Installed: yes\n");
 650                 } else {
 651                         goto UNKNOWN_FMT_FIELD;
 652                 }
 653                 break;
 654         case 'c':
 655         case 'C':
 656                 if (strcasecmp(field, "Conffiles") == 0) {
 657                         conffile_list_t *cl;
 658                         conffile_list_elt_t *iter;
 659
 660                         cl = pkg_get_ptr(pkg, PKG_CONFFILES);
 661
 662                         if (!cl || nv_pair_list_empty(cl))
 663                                 return;
 664
 665                         fprintf(fp, "Conffiles:\n");
 666                         for (iter = nv_pair_list_first(cl); iter;
 667                              iter = nv_pair_list_next(cl, iter)) {
 668                                 if (((conffile_t *) iter->data)->name
 669                                     && ((conffile_t *) iter->data)->value) {
 670                                         fprintf(fp, " %s %s\n",
 671                                                 ((conffile_t *) iter->data)->
 672                                                 name,
 673                                                 ((conffile_t *) iter->data)->
 674                                                 value);
 675                                 }
 676                         }
 677                 } else if (strcasecmp(field, "Conflicts") == 0) {
 678                         struct depend *cdep;
 679                         compound_depend_t *deps, *dep;
 680                         deps = pkg_get_ptr(pkg, PKG_CONFLICTS);
 681                         if (deps) {
 682                                 fprintf(fp, "Conflicts:");
 683                                 for (i = 0, dep = deps; dep->type; dep++, i++) {
 684                                         cdep = dep->possibilities[0];
 685                                         fprintf(fp, "%s %s", i == 0 ? "" : ",",
 686                                                 cdep->pkg->name);
 687                                         if (cdep->version) {
 688                                                 fprintf(fp, " (%s%s)",
 689                                                         constraint_to_str(cdep->
 690                                                                           constraint),
 691                                                         cdep->version);
 692                                         }
 693                                 }
 694                                 fprintf(fp, "\n");
 695                         }
 696                 } else {
 697                         goto UNKNOWN_FMT_FIELD;
 698                 }
 699                 break;
 700         case 'd':
 701         case 'D':
 702                 if (strcasecmp(field, "Depends") == 0) {
 703                         dep = pkg_get_depends(pkg, DEPEND);
 704                         if (dep) {
 705                                 fprintf(fp, "Depends:");
 706                                 for (i = 0, j = 0; dep && dep->type; i++, dep++) {
 707                                         if (dep->type != DEPEND)
 708                                                 continue;
 709                                         str = pkg_depend_str(pkg, i);
 710                                         fprintf(fp, "%s %s", j == 0 ? "" : ",",
 711                                                 str);
 712                                         free(str);
 713                                         j++;
 714                                 }
 715                                 fprintf(fp, "\n");
 716                         }
 717                 } else if (strcasecmp(field, "Description") == 0) {
 718                         p = pkg_get_string(pkg, PKG_DESCRIPTION);
 719                         if (p) {
 720                                 fprintf(fp, "Description: %s\n",
 721                                         p);
 722                         }
 723                 } else {
 724                         goto UNKNOWN_FMT_FIELD;
 725                 }
 726                 break;
 727         case 'e':
 728         case 'E':
 729                 if (pkg->essential) {
 730                         fprintf(fp, "Essential: yes\n");
 731                 }
 732                 break;
 733         case 'f':
 734         case 'F':
 735                 p = pkg_get_string(pkg, PKG_FILENAME);
 736                 if (p) {
 737                         fprintf(fp, "Filename: %s\n", p);
 738                 }
 739                 break;
 740         case 'i':
 741         case 'I':
 742                 if (strcasecmp(field, "Installed-Size") == 0) {
 743                         fprintf(fp, "Installed-Size: %lu\n",
 744                                 (unsigned long) pkg_get_int(pkg, PKG_INSTALLED_SIZE));
 745                 } else if (strcasecmp(field, "Installed-Time") == 0) {
 746                         i = pkg_get_int(pkg, PKG_INSTALLED_TIME);
 747                         if (i) {
 748                                 fprintf(fp, "Installed-Time: %lu\n",
 749                                         (unsigned long) i);
 750                         }
 751                 }
 752                 break;
 753         case 'm':
 754         case 'M':
 755                 if (strcasecmp(field, "Maintainer") == 0) {
 756                         p = pkg_get_string(pkg, PKG_MAINTAINER);
 757                         if (p) {
 758                                 fprintf(fp, "Maintainer: %s\n", p);
 759                         }
 760                 } else if (strcasecmp(field, "MD5sum") == 0) {
 761                         p = pkg_get_md5(pkg);
 762                         if (p) {
 763                                 fprintf(fp, "MD5Sum: %s\n", p);
 764                         }
 765                 } else {
 766                         goto UNKNOWN_FMT_FIELD;
 767                 }
 768                 break;
 769         case 'p':
 770         case 'P':
 771                 if (strcasecmp(field, "Package") == 0) {
 772                         fprintf(fp, "Package: %s\n", pkg->name);
 773                 } else if (strcasecmp(field, "Priority") == 0) {
 774                         fprintf(fp, "Priority: %s\n", pkg_get_string(pkg, PKG_PRIORITY));
 775                 } else if (strcasecmp(field, "Provides") == 0) {
 776                         ab_pkg = pkg_get_ptr(pkg, PKG_PROVIDES);
 777                         if (ab_pkg && ab_pkg[0] && ab_pkg[1]) {
 778                                 fprintf(fp, "Provides:");
 779                                 for (i = 0, ab_pkg++; *ab_pkg; i++, ab_pkg++) {
 780                                         fprintf(fp, "%s %s", i == 0 ? "" : ",",
 781                                                 (*ab_pkg)->name);
 782                                         ab_pkg++;
 783                                 }
 784                                 fprintf(fp, "\n");
 785                         }
 786                 } else {
 787                         goto UNKNOWN_FMT_FIELD;
 788                 }
 789                 break;
 790         case 'r':
 791         case 'R':
 792                 if (strcasecmp(field, "Replaces") == 0) {
 793                         ab_pkg = pkg_get_ptr(pkg, PKG_REPLACES);
 794                         if (ab_pkg && *ab_pkg) {
 795                                 fprintf(fp, "Replaces:");
 796                                 for (i = 0; *ab_pkg; i++, ab_pkg++) {
 797                                         fprintf(fp, "%s %s", i == 0 ? "" : ",",
 798                                                 (*ab_pkg)->name);
 799                                 }
 800                                 fprintf(fp, "\n");
 801                         }
 802                 } else if (strcasecmp(field, "Recommends") == 0) {
 803                         dep = pkg_get_depends(pkg, RECOMMEND);
 804                         if (dep) {
 805                                 fprintf(fp, "Recommends:");
 806                                 for (j = 0, i = 0; dep && dep->type; i++, dep++) {
 807                                         if (dep->type != RECOMMEND)
 808                                                 continue;
 809                                         str = pkg_depend_str(pkg, i);
 810                                         fprintf(fp, "%s %s", j == 0 ? "" : ",",
 811                                                 str);
 812                                         free(str);
 813                                         j++;
 814                                 }
 815                                 fprintf(fp, "\n");
 816                         }
 817                 } else {
 818                         goto UNKNOWN_FMT_FIELD;
 819                 }
 820                 break;
 821         case 's':
 822         case 'S':
 823                 if (strcasecmp(field, "Section") == 0) {
 824                         p = pkg_get_string(pkg, PKG_SECTION);
 825                         if (p) {
 826                                 fprintf(fp, "Section: %s\n", p);
 827                         }
 828 #if defined HAVE_SHA256
 829                 } else if (strcasecmp(field, "SHA256sum") == 0) {
 830                         p = pkg_get_string(pkg, PKG_SHA256SUM);
 831                         if (p) {
 832                                 fprintf(fp, "SHA256sum: %s\n", p);
 833                         }
 834 #endif
 835                 } else if (strcasecmp(field, "Size") == 0) {
 836                         i = pkg_get_int(pkg, PKG_SIZE);
 837                         if (i) {
 838                                 fprintf(fp, "Size: %lu\n", (unsigned long) i);
 839                         }
 840                 } else if (strcasecmp(field, "Source") == 0) {
 841                         p = pkg_get_string(pkg, PKG_SOURCE);
 842                         if (p) {
 843                                 fprintf(fp, "Source: %s\n", p);
 844                         }
 845                 } else if (strcasecmp(field, "Status") == 0) {
 846                         char *pflag = pkg_state_flag_to_str(pkg->state_flag);
 847                         fprintf(fp, "Status: %s %s %s\n",
 848                                 pkg_state_want_to_str(pkg->state_want),
 849                                 pflag,
 850                                 pkg_state_status_to_str(pkg->state_status));
 851                         free(pflag);
 852                 } else if (strcasecmp(field, "Suggests") == 0) {
 853                         dep = pkg_get_depends(pkg, SUGGEST);
 854                         if (dep) {
 855                                 fprintf(fp, "Suggests:");
 856                                 for (j = 0, i = 0; dep && dep->type; i++, dep++) {
 857                                         if (dep->type != SUGGEST)
 858                                                 continue;
 859                                         str = pkg_depend_str(pkg, i);
 860                                         fprintf(fp, "%s %s", j == 0 ? "" : ",",
 861                                                 str);
 862                                         free(str);
 863                                         j++;
 864                                 }
 865                                 fprintf(fp, "\n");
 866                         }
 867                 } else {
 868                         goto UNKNOWN_FMT_FIELD;
 869                 }
 870                 break;
 871         case 't':
 872         case 'T':
 873                 if (strcasecmp(field, "Tags") == 0) {
 874                         p = pkg_get_string(pkg, PKG_TAGS);
 875                         if (p) {
 876                                 fprintf(fp, "Tags: %s\n", p);
 877                         }
 878                 }
 879                 break;
 880         case 'v':
 881         case 'V':
 882                 {
 883                         char *version = pkg_version_str_alloc(pkg);
 884                         if (version == NULL)
 885                                 return;
 886                         fprintf(fp, "Version: %s\n", version);
 887                         free(version);
 888                 }
 889                 break;
 890         default:
 891                 goto UNKNOWN_FMT_FIELD;
 892         }
 893
 894         return;
 895
 896 UNKNOWN_FMT_FIELD:
 897         opkg_msg(ERROR, "Internal error: field=%s\n", field);
 898 }
 899
 900 void pkg_formatted_info(FILE * fp, pkg_t * pkg)
 901 {
 902         pkg_formatted_field(fp, pkg, "Package");
 903         pkg_formatted_field(fp, pkg, "Version");
 904         pkg_formatted_field(fp, pkg, "Depends");
 905         pkg_formatted_field(fp, pkg, "Recommends");
 906         pkg_formatted_field(fp, pkg, "Suggests");
 907         pkg_formatted_field(fp, pkg, "Provides");
 908         pkg_formatted_field(fp, pkg, "Replaces");
 909         pkg_formatted_field(fp, pkg, "Conflicts");
 910         pkg_formatted_field(fp, pkg, "Status");
 911         pkg_formatted_field(fp, pkg, "Section");
 912         pkg_formatted_field(fp, pkg, "Essential");
 913         pkg_formatted_field(fp, pkg, "Architecture");
 914         pkg_formatted_field(fp, pkg, "Maintainer");
 915         pkg_formatted_field(fp, pkg, "MD5sum");
 916         pkg_formatted_field(fp, pkg, "Size");
 917         pkg_formatted_field(fp, pkg, "Filename");
 918         pkg_formatted_field(fp, pkg, "Conffiles");
 919         pkg_formatted_field(fp, pkg, "Source");
 920         pkg_formatted_field(fp, pkg, "Description");
 921         pkg_formatted_field(fp, pkg, "Installed-Time");
 922         pkg_formatted_field(fp, pkg, "Tags");
 923         fputs("\n", fp);
 924 }
 925
 926 void pkg_print_status(pkg_t * pkg, FILE * file)
 927 {
 928         if (pkg == NULL) {
 929                 return;
 930         }
 931
 932         pkg_formatted_field(file, pkg, "Package");
 933         pkg_formatted_field(file, pkg, "Version");
 934         pkg_formatted_field(file, pkg, "Depends");
 935         pkg_formatted_field(file, pkg, "Recommends");
 936         pkg_formatted_field(file, pkg, "Suggests");
 937         pkg_formatted_field(file, pkg, "Provides");
 938         pkg_formatted_field(file, pkg, "Replaces");
 939         pkg_formatted_field(file, pkg, "Conflicts");
 940         pkg_formatted_field(file, pkg, "Status");
 941         pkg_formatted_field(file, pkg, "Essential");
 942         pkg_formatted_field(file, pkg, "Architecture");
 943         pkg_formatted_field(file, pkg, "Conffiles");
 944         pkg_formatted_field(file, pkg, "Installed-Time");
 945         pkg_formatted_field(file, pkg, "Auto-Installed");
 946         fputs("\n", file);
 947 }
 948
 949 /*
 950  * libdpkg - Debian packaging suite library routines
 951  * vercmp.c - comparison of version numbers
 952  *
 953  * Copyright (C) 1995 Ian Jackson <iwj10@cus.cam.ac.uk>
 954  */
 955
 956 /* assume ascii; warning: evaluates x multiple times! */
 957 #define order(x) ((x) == '~' ? -1 \
 958                 : isdigit((x)) ? 0 \
 959                 : !(x) ? 0 \
 960                 : isalpha((x)) ? (x) \
 961                 : (x) + 256)
 962
 963 static int verrevcmp(const char *val, const char *ref)
 964 {
 965         if (!val)
 966                 val = "";
 967         if (!ref)
 968                 ref = "";
 969
 970         while (*val || *ref) {
 971                 int first_diff = 0;
 972
 973                 while ((*val && !isdigit(*val)) || (*ref && !isdigit(*ref))) {
 974                         int vc = order(*val), rc = order(*ref);
 975                         if (vc != rc)
 976                                 return vc - rc;
 977                         val++;
 978                         ref++;
 979                 }
 980
 981                 while (*val == '0')
 982                         val++;
 983                 while (*ref == '0')
 984                         ref++;
 985                 while (isdigit(*val) && isdigit(*ref)) {
 986                         if (!first_diff)
 987                                 first_diff = *val - *ref;
 988                         val++;
 989                         ref++;
 990                 }
 991                 if (isdigit(*val))
 992                         return 1;
 993                 if (isdigit(*ref))
 994                         return -1;
 995                 if (first_diff)
 996                         return first_diff;
 997         }
 998         return 0;
 999 }
1000
1001 int pkg_compare_versions(const pkg_t * pkg, const pkg_t * ref_pkg)
1002 {
1003         unsigned int epoch1 = (unsigned int) pkg_get_int(pkg, PKG_EPOCH);
1004         unsigned int epoch2 = (unsigned int) pkg_get_int(ref_pkg, PKG_EPOCH);
1005         char *revision1 = pkg_get_string(pkg, PKG_REVISION);
1006         char *revision2 = pkg_get_string(ref_pkg, PKG_REVISION);
1007         const char *version1 = pkg_get_string(pkg, PKG_VERSION);
1008         const char *version2 = pkg_get_string(ref_pkg, PKG_VERSION);
1009         int r;
1010
1011         if (epoch1 > epoch2) {
1012                 return 1;
1013         }
1014
1015         if (epoch1 < epoch2) {
1016                 return -1;
1017         }
1018
1019         r = verrevcmp(version1, version2);
1020         if (r) {
1021                 return r;
1022         }
1023
1024         r = verrevcmp(revision1, revision2);
1025         if (r) {
1026                 return r;
1027         }
1028
1029         return r;
1030 }
1031
1032 int pkg_version_satisfied(pkg_t * it, pkg_t * ref, const char *op)
1033 {
1034         int r;
1035
1036         r = pkg_compare_versions(it, ref);
1037
1038         if (strcmp(op, "<=") == 0 || strcmp(op, "<") == 0) {
1039                 return r <= 0;
1040         }
1041
1042         if (strcmp(op, ">=") == 0 || strcmp(op, ">") == 0) {
1043                 return r >= 0;
1044         }
1045
1046         if (strcmp(op, "<<") == 0) {
1047                 return r < 0;
1048         }
1049
1050         if (strcmp(op, ">>") == 0) {
1051                 return r > 0;
1052         }
1053
1054         if (strcmp(op, "=") == 0) {
1055                 return r == 0;
1056         }
1057
1058         opkg_msg(ERROR, "Unknown operator: %s.\n", op);
1059         return 0;
1060 }
1061
1062 int pkg_name_version_and_architecture_compare(const void *p1, const void *p2)
1063 {
1064         const pkg_t * a = *(const pkg_t **)p1;
1065         const pkg_t * b = *(const pkg_t **)p2;
1066         int namecmp;
1067         int vercmp;
1068         int arch_prio1, arch_prio2;
1069         if (!a->name || !b->name) {
1070                 opkg_msg(ERROR, "Internal error: a->name=%p, b->name=%p.\n",
1071                          a->name, b->name);
1072                 return 0;
1073         }
1074
1075         namecmp = strcmp(a->name, b->name);
1076         if (namecmp)
1077                 return namecmp;
1078         vercmp = pkg_compare_versions(a, b);
1079         if (vercmp)
1080                 return vercmp;
1081         arch_prio1 = pkg_get_arch_priority(a);
1082         arch_prio2 = pkg_get_arch_priority(b);
1083         if (!arch_prio1 || !arch_prio2) {
1084                 opkg_msg(ERROR,
1085                          "Internal error: a->arch_priority=%i b->arch_priority=%i.\n",
1086                          arch_prio1, arch_prio2);
1087                 return 0;
1088         }
1089         if (arch_prio1 > arch_prio2)
1090                 return 1;
1091         if (arch_prio1 < arch_prio2)
1092                 return -1;
1093         return 0;
1094 }
1095
1096 int abstract_pkg_name_compare(const void *p1, const void *p2)
1097 {
1098         const abstract_pkg_t *a = *(const abstract_pkg_t **)p1;
1099         const abstract_pkg_t *b = *(const abstract_pkg_t **)p2;
1100         if (!a->name || !b->name) {
1101                 opkg_msg(ERROR, "Internal error: a->name=%p b->name=%p.\n",
1102                          a->name, b->name);
1103                 return 0;
1104         }
1105         return strcmp(a->name, b->name);
1106 }
1107
1108 char *pkg_version_str_alloc(pkg_t * pkg)
1109 {
1110         const char *verstr;
1111         char *version, *revptr;
1112         unsigned int epoch = (unsigned int) pkg_get_int(pkg, PKG_EPOCH);
1113
1114         revptr = pkg_get_string(pkg, PKG_REVISION);
1115         verstr = pkg_get_string(pkg, PKG_VERSION);
1116
1117         if (epoch) {
1118                 if (revptr)
1119                         sprintf_alloc(&version, "%d:%s-%s",
1120                                       epoch, verstr, revptr);
1121                 else
1122                         sprintf_alloc(&version, "%d:%s",
1123                                       epoch, verstr);
1124         } else {
1125                 if (revptr)
1126                         sprintf_alloc(&version, "%s-%s",
1127                                       verstr, revptr);
1128                 else
1129                         version = xstrdup(verstr);
1130         }
1131
1132         return version;
1133 }
1134
1135 /*
1136  * XXX: this should be broken into two functions
1137  */
1138 str_list_t *pkg_get_installed_files(pkg_t * pkg)
1139 {
1140         int err, fd;
1141         char *list_file_name = NULL;
1142         FILE *list_file = NULL;
1143         char *line;
1144         char *installed_file_name;
1145         unsigned int rootdirlen = 0;
1146         int list_from_package;
1147         const char *local_filename;
1148
1149         pkg->installed_files_ref_cnt++;
1150
1151         if (pkg->installed_files) {
1152                 return pkg->installed_files;
1153         }
1154
1155         pkg->installed_files = str_list_alloc();
1156
1157         /*
1158          * For installed packages, look at the package.list file in the database.
1159          * For uninstalled packages, get the file list directly from the package.
1160          */
1161         if (pkg->state_status == SS_NOT_INSTALLED || pkg->dest == NULL)
1162                 list_from_package = 1;
1163         else
1164                 list_from_package = 0;
1165
1166         if (list_from_package) {
1167                 local_filename = pkg_get_string(pkg, PKG_LOCAL_FILENAME);
1168
1169                 if (!local_filename) {
1170                         return pkg->installed_files;
1171                 }
1172                 /* XXX: CLEANUP: Maybe rewrite this to avoid using a temporary
1173                    file. In other words, change deb_extract so that it can
1174                    simply return the file list as a char *[] rather than
1175                    insisting on writing it to a FILE * as it does now. */
1176                 sprintf_alloc(&list_file_name, "%s/%s.list.XXXXXX",
1177                               conf->tmp_dir, pkg->name);
1178                 fd = mkstemp(list_file_name);
1179                 if (fd == -1) {
1180                         opkg_perror(ERROR, "Failed to make temp file %s.",
1181                                     list_file_name);
1182                         free(list_file_name);
1183                         return pkg->installed_files;
1184                 }
1185                 list_file = fdopen(fd, "r+");
1186                 if (list_file == NULL) {
1187                         opkg_perror(ERROR, "Failed to fdopen temp file %s.",
1188                                     list_file_name);
1189                         close(fd);
1190                         unlink(list_file_name);
1191                         free(list_file_name);
1192                         return pkg->installed_files;
1193                 }
1194                 err = pkg_extract_data_file_names_to_stream(pkg, list_file);
1195                 if (err) {
1196                         opkg_msg(ERROR, "Error extracting file list from %s.\n",
1197                                  local_filename);
1198                         fclose(list_file);
1199                         unlink(list_file_name);
1200                         free(list_file_name);
1201                         str_list_deinit(pkg->installed_files);
1202                         pkg->installed_files = NULL;
1203                         return NULL;
1204                 }
1205                 rewind(list_file);
1206         } else {
1207                 sprintf_alloc(&list_file_name, "%s/%s.list",
1208                               pkg->dest->info_dir, pkg->name);
1209                 list_file = fopen(list_file_name, "r");
1210                 if (list_file == NULL) {
1211                         opkg_perror(ERROR, "Failed to open %s", list_file_name);
1212                         free(list_file_name);
1213                         return pkg->installed_files;
1214                 }
1215                 free(list_file_name);
1216         }
1217
1218         if (conf->offline_root)
1219                 rootdirlen = strlen(conf->offline_root);
1220
1221         while (1) {
1222                 char *file_name;
1223
1224                 line = file_read_line_alloc(list_file);
1225                 if (line == NULL) {
1226                         break;
1227                 }
1228                 file_name = line;
1229
1230                 if (list_from_package) {
1231                         if (*file_name == '.') {
1232                                 file_name++;
1233                         }
1234                         if (*file_name == '/') {
1235                                 file_name++;
1236                         }
1237                         sprintf_alloc(&installed_file_name, "%s%s",
1238                                       pkg->dest->root_dir, file_name);
1239                 } else {
1240                         if (conf->offline_root &&
1241                             strncmp(conf->offline_root, file_name,
1242                                     rootdirlen)) {
1243                                 sprintf_alloc(&installed_file_name, "%s%s",
1244                                               conf->offline_root, file_name);
1245                         } else {
1246                                 // already contains root_dir as header -> ABSOLUTE
1247                                 sprintf_alloc(&installed_file_name, "%s",
1248                                               file_name);
1249                         }
1250                 }
1251                 str_list_append(pkg->installed_files, installed_file_name);
1252                 free(installed_file_name);
1253                 free(line);
1254         }
1255
1256         fclose(list_file);
1257
1258         if (list_from_package) {
1259                 unlink(list_file_name);
1260                 free(list_file_name);
1261         }
1262
1263         return pkg->installed_files;
1264 }
1265
1266 /* XXX: CLEANUP: This function and it's counterpart,
1267    (pkg_get_installed_files), do not match our init/deinit naming
1268    convention. Nor the alloc/free convention. But, then again, neither
1269    of these conventions currrently fit the way these two functions
1270    work. */
1271 void pkg_free_installed_files(pkg_t * pkg)
1272 {
1273         pkg->installed_files_ref_cnt--;
1274
1275         if (pkg->installed_files_ref_cnt > 0)
1276                 return;
1277
1278         if (pkg->installed_files) {
1279                 str_list_purge(pkg->installed_files);
1280         }
1281
1282         pkg->installed_files = NULL;
1283 }
1284
1285 void pkg_remove_installed_files_list(pkg_t * pkg)
1286 {
1287         char *list_file_name;
1288
1289         sprintf_alloc(&list_file_name, "%s/%s.list",
1290                       pkg->dest->info_dir, pkg->name);
1291
1292         if (!conf->noaction)
1293                 (void)unlink(list_file_name);
1294
1295         free(list_file_name);
1296 }
1297
1298 conffile_t *pkg_get_conffile(pkg_t * pkg, const char *file_name)
1299 {
1300         conffile_list_elt_t *iter;
1301         conffile_list_t *cl;
1302         conffile_t *conffile;
1303
1304         if (pkg == NULL) {
1305                 return NULL;
1306         }
1307
1308         cl = pkg_get_ptr(pkg, PKG_CONFFILES);
1309
1310         for (iter = cl ? nv_pair_list_first(cl) : NULL; iter;
1311              iter = nv_pair_list_next(cl, iter)) {
1312                 conffile = (conffile_t *) iter->data;
1313
1314                 if (strcmp(conffile->name, file_name) == 0) {
1315                         return conffile;
1316                 }
1317         }
1318
1319         return NULL;
1320 }
1321
1322 int pkg_run_script(pkg_t * pkg, const char *script, const char *args)
1323 {
1324         int err;
1325         char *path;
1326         char *cmd;
1327         char *tmp_unpack_dir;
1328
1329         if (conf->noaction)
1330                 return 0;
1331
1332         /* XXX: FEATURE: When conf->offline_root is set, we should run the
1333            maintainer script within a chroot environment. */
1334         if (conf->offline_root && !conf->force_postinstall) {
1335                 opkg_msg(INFO, "Offline root mode: not running %s.%s.\n",
1336                          pkg->name, script);
1337                 return 0;
1338         }
1339
1340         /* Installed packages have scripts in pkg->dest->info_dir, uninstalled packages
1341            have scripts in tmp_unpack_dir. */
1342         if (pkg->state_status == SS_INSTALLED
1343             || pkg->state_status == SS_UNPACKED) {
1344                 if (pkg->dest == NULL) {
1345                         opkg_msg(ERROR, "Internal error: %s has a NULL dest.\n",
1346                                  pkg->name);
1347                         return -1;
1348                 }
1349                 sprintf_alloc(&path, "%s/%s.%s", pkg->dest->info_dir, pkg->name,
1350                               script);
1351         } else {
1352                 tmp_unpack_dir = pkg_get_string(pkg, PKG_TMP_UNPACK_DIR);
1353                 if (tmp_unpack_dir == NULL) {
1354                         opkg_msg(ERROR,
1355                                  "Internal error: %s has a NULL tmp_unpack_dir.\n",
1356                                  pkg->name);
1357                         return -1;
1358                 }
1359                 sprintf_alloc(&path, "%s/%s", tmp_unpack_dir, script);
1360         }
1361
1362         opkg_msg(INFO, "Running script %s.\n", path);
1363
1364         setenv("PKG_ROOT",
1365                pkg->dest ? pkg->dest->root_dir : conf->default_dest->root_dir,
1366                1);
1367
1368         if (pkg->is_upgrade)
1369                 setenv("PKG_UPGRADE", "1", 1);
1370         else
1371                 setenv("PKG_UPGRADE", "0", 1);
1372
1373         if (!file_exists(path)) {
1374                 free(path);
1375                 return 0;
1376         }
1377
1378         sprintf_alloc(&cmd, "%s %s", path, args);
1379         free(path);
1380         {
1381                 const char *argv[] = { "sh", "-c", cmd, NULL };
1382                 err = xsystem(argv);
1383         }
1384         free(cmd);
1385
1386         if (err) {
1387                 opkg_msg(ERROR,
1388                          "package \"%s\" %s script returned status %d.\n",
1389                          pkg->name, script, err);
1390                 return err;
1391         }
1392
1393         return 0;
1394 }
1395
1396 int pkg_arch_supported(pkg_t * pkg)
1397 {
1398         nv_pair_list_elt_t *l;
1399         char *architecture = pkg_get_architecture(pkg);
1400
1401         if (!architecture)
1402                 return 1;
1403
1404         list_for_each_entry(l, &conf->arch_list.head, node) {
1405                 nv_pair_t *nv = (nv_pair_t *) l->data;
1406                 if (strcmp(nv->name, architecture) == 0) {
1407                         opkg_msg(DEBUG,
1408                                  "Arch %s (priority %s) supported for pkg %s.\n",
1409                                  nv->name, nv->value, pkg->name);
1410                         return 1;
1411                 }
1412         }
1413
1414         opkg_msg(DEBUG, "Arch %s unsupported for pkg %s.\n",
1415                  architecture, pkg->name);
1416         return 0;
1417 }
1418
1419 void pkg_info_preinstall_check(void)
1420 {
1421         int i;
1422         pkg_vec_t *installed_pkgs = pkg_vec_alloc();
1423
1424         /* update the file owner data structure */
1425         opkg_msg(INFO, "Updating file owner list.\n");
1426         pkg_hash_fetch_all_installed(installed_pkgs);
1427         for (i = 0; i < installed_pkgs->len; i++) {
1428                 pkg_t *pkg = installed_pkgs->pkgs[i];
1429                 str_list_t *installed_files = pkg_get_installed_files(pkg);     /* this causes installed_files to be cached */
1430                 str_list_elt_t *iter, *niter;
1431                 if (installed_files == NULL) {
1432                         opkg_msg(ERROR, "Failed to determine installed "
1433                                  "files for pkg %s.\n", pkg->name);
1434                         break;
1435                 }
1436                 for (iter = str_list_first(installed_files), niter =
1437                      str_list_next(installed_files, iter); iter;
1438                      iter = niter, niter =
1439                      str_list_next(installed_files, iter)) {
1440                         char *installed_file = (char *)iter->data;
1441                         file_hash_set_file_owner(installed_file, pkg);
1442                 }
1443                 pkg_free_installed_files(pkg);
1444         }
1445         pkg_vec_free(installed_pkgs);
1446 }
1447
1448 struct pkg_write_filelist_data {
1449         pkg_t *pkg;
1450         FILE *stream;
1451 };
1452
1453 static void
1454 pkg_write_filelist_helper(const char *key, void *entry_, void *data_)
1455 {
1456         struct pkg_write_filelist_data *data = data_;
1457         pkg_t *entry = entry_;
1458         if (entry == data->pkg) {
1459                 fprintf(data->stream, "%s\n", key);
1460         }
1461 }
1462
1463 int pkg_write_filelist(pkg_t * pkg)
1464 {
1465         struct pkg_write_filelist_data data;
1466         char *list_file_name;
1467
1468         sprintf_alloc(&list_file_name, "%s/%s.list",
1469                       pkg->dest->info_dir, pkg->name);
1470
1471         opkg_msg(INFO, "Creating %s file for pkg %s.\n",
1472                  list_file_name, pkg->name);
1473
1474         data.stream = fopen(list_file_name, "w");
1475         if (!data.stream) {
1476                 opkg_perror(ERROR, "Failed to open %s", list_file_name);
1477                 free(list_file_name);
1478                 return -1;
1479         }
1480
1481         data.pkg = pkg;
1482         hash_table_foreach(&conf->file_hash, pkg_write_filelist_helper, &data);
1483         fclose(data.stream);
1484         free(list_file_name);
1485
1486         pkg->state_flag &= ~SF_FILELIST_CHANGED;
1487
1488         return 0;
1489 }
1490
1491 int pkg_write_changed_filelists(void)
1492 {
1493         pkg_vec_t *installed_pkgs = pkg_vec_alloc();
1494         int i, err, ret = 0;
1495
1496         if (conf->noaction)
1497                 return 0;
1498
1499         opkg_msg(INFO, "Saving changed filelists.\n");
1500
1501         pkg_hash_fetch_all_installed(installed_pkgs);
1502         for (i = 0; i < installed_pkgs->len; i++) {
1503                 pkg_t *pkg = installed_pkgs->pkgs[i];
1504                 if (pkg->state_flag & SF_FILELIST_CHANGED) {
1505                         err = pkg_write_filelist(pkg);
1506                         if (err)
1507                                 ret = -1;
1508                 }
1509         }
1510
1511         pkg_vec_free(installed_pkgs);
1512
1513         return ret;
1514 }