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