libopkg/opkg_conf.c

   1 /* opkg_conf.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 "includes.h"
  19 #include "opkg_conf.h"
  20 #include "opkg_error.h"
  21
  22 #include "xregex.h"
  23 #include "sprintf_alloc.h"
  24 #include "args.h"
  25 #include "opkg_message.h"
  26 #include "file_util.h"
  27 #include "str_util.h"
  28 #include "xsystem.h"
  29 #include "opkg_defines.h"
  30 #include "libbb/libbb.h"
  31
  32 #include <sys/types.h>
  33 #include <sys/stat.h>
  34 #include <fcntl.h>
  35 #include <errno.h>
  36 #include <glob.h>
  37
  38 static int opkg_conf_parse_file(opkg_conf_t *conf, const char *filename,
  39                                 pkg_src_list_t *pkg_src_list,
  40                                 nv_pair_list_t *tmp_dest_nv_pair_list);
  41 static int opkg_conf_set_option(const opkg_option_t *options,
  42                                 const char *name, const char *value);
  43 static int opkg_conf_set_default_dest(opkg_conf_t *conf,
  44                                       const char *default_dest_name);
  45 static int set_and_load_pkg_src_list(opkg_conf_t *conf,
  46                                      pkg_src_list_t *nv_pair_list);
  47 static int set_and_load_pkg_dest_list(opkg_conf_t *conf,
  48                                       nv_pair_list_t *nv_pair_list);
  49
  50 void opkg_init_options_array(const opkg_conf_t *conf, opkg_option_t **options)
  51 {
  52      opkg_option_t tmp[] = {
  53           { "cache", OPKG_OPT_TYPE_STRING, &conf->cache},
  54           { "force_defaults", OPKG_OPT_TYPE_BOOL, &conf->force_defaults },
  55           { "force_maintainer", OPKG_OPT_TYPE_BOOL, &conf->force_maintainer },
  56           { "force_depends", OPKG_OPT_TYPE_BOOL, &conf->force_depends },
  57           { "force_overwrite", OPKG_OPT_TYPE_BOOL, &conf->force_overwrite },
  58           { "force_downgrade", OPKG_OPT_TYPE_BOOL, &conf->force_downgrade },
  59           { "force_reinstall", OPKG_OPT_TYPE_BOOL, &conf->force_reinstall },
  60           { "force_space", OPKG_OPT_TYPE_BOOL, &conf->force_space },
  61           { "check_signature", OPKG_OPT_TYPE_INT, &conf->check_signature },
  62           { "ftp_proxy", OPKG_OPT_TYPE_STRING, &conf->ftp_proxy },
  63           { "http_proxy", OPKG_OPT_TYPE_STRING, &conf->http_proxy },
  64           { "no_proxy", OPKG_OPT_TYPE_STRING, &conf->no_proxy },
  65           { "test", OPKG_OPT_TYPE_INT, &conf->noaction },
  66           { "noaction", OPKG_OPT_TYPE_INT, &conf->noaction },
  67           { "nodeps", OPKG_OPT_TYPE_BOOL, &conf->nodeps },
  68           { "offline_root", OPKG_OPT_TYPE_STRING, &conf->offline_root },
  69           { "offline_root_path", OPKG_OPT_TYPE_STRING, &conf->offline_root_path },
  70           { "offline_root_post_script_cmd", OPKG_OPT_TYPE_STRING, &conf->offline_root_post_script_cmd },
  71           { "offline_root_pre_script_cmd", OPKG_OPT_TYPE_STRING, &conf->offline_root_pre_script_cmd },
  72           { "proxy_passwd", OPKG_OPT_TYPE_STRING, &conf->proxy_passwd },
  73           { "proxy_user", OPKG_OPT_TYPE_STRING, &conf->proxy_user },
  74           { "query-all", OPKG_OPT_TYPE_BOOL, &conf->query_all },
  75           { "verbosity", OPKG_OPT_TYPE_BOOL, &conf->verbosity },
  76 #if defined(HAVE_OPENSSL)
  77           { "signature_ca_file", OPKG_OPT_TYPE_STRING, &conf->signature_ca_file },
  78           { "signature_ca_path", OPKG_OPT_TYPE_STRING, &conf->signature_ca_path },
  79 #endif
  80 #if defined(HAVE_PATHFINDER)
  81           { "check_x509_path", OPKG_OPT_TYPE_INT, &conf->check_x509_path },
  82 #endif
  83 #if defined(HAVE_SSLCURL) && defined(HAVE_CURL)
  84           { "ssl_engine", OPKG_OPT_TYPE_STRING, &conf->ssl_engine },
  85           { "ssl_cert", OPKG_OPT_TYPE_STRING, &conf->ssl_cert },
  86           { "ssl_cert_type", OPKG_OPT_TYPE_STRING, &conf->ssl_cert_type },
  87           { "ssl_key", OPKG_OPT_TYPE_STRING, &conf->ssl_key },
  88           { "ssl_key_type", OPKG_OPT_TYPE_STRING, &conf->ssl_key_type },
  89           { "ssl_key_passwd", OPKG_OPT_TYPE_STRING, &conf->ssl_key_passwd },
  90           { "ssl_ca_file", OPKG_OPT_TYPE_STRING, &conf->ssl_ca_file },
  91           { "ssl_ca_path", OPKG_OPT_TYPE_STRING, &conf->ssl_ca_path },
  92           { "ssl_dont_verify_peer", OPKG_OPT_TYPE_BOOL, &conf->ssl_dont_verify_peer },
  93 #endif
  94           { NULL }
  95      };
  96
  97      *options = xcalloc(1, sizeof(tmp));
  98      memcpy(*options, tmp, sizeof(tmp));
  99 };
 100
 101 static void opkg_conf_override_string(char **conf_str, char *arg_str)
 102 {
 103      if (arg_str) {
 104           if (*conf_str) {
 105                free(*conf_str);
 106           }
 107           *conf_str = xstrdup(arg_str);
 108      }
 109 }
 110
 111 static void opkg_conf_free_string(char **conf_str)
 112 {
 113      if (*conf_str) {
 114           free(*conf_str);
 115           *conf_str = NULL;
 116      }
 117 }
 118
 119 int opkg_conf_init(opkg_conf_t *conf, const args_t *args)
 120 {
 121      int err;
 122      int errno_copy;
 123      char *tmp_dir_base;
 124      nv_pair_list_t tmp_dest_nv_pair_list;
 125      char *lock_file = NULL;
 126      glob_t globbuf;
 127      char *etc_opkg_conf_pattern;
 128      char *offline_root = NULL;
 129
 130      memset(conf, 0, sizeof(opkg_conf_t));
 131
 132 #if defined(HAVE_PATHFINDER)
 133      conf->check_x509_path = 1;
 134 #endif
 135
 136      pkg_src_list_init(&conf->pkg_src_list);
 137
 138      nv_pair_list_init(&tmp_dest_nv_pair_list);
 139      pkg_dest_list_init(&conf->pkg_dest_list);
 140
 141      nv_pair_list_init(&conf->arch_list);
 142
 143      conf->restrict_to_default_dest = 0;
 144      conf->default_dest = NULL;
 145
 146      if (args->conf_file) {
 147           struct stat stat_buf;
 148           err = stat(args->conf_file, &stat_buf);
 149           if (err == 0)
 150                if (opkg_conf_parse_file(conf, args->conf_file,
 151                                     &conf->pkg_src_list, &tmp_dest_nv_pair_list)<0) {
 152                    /* Memory leakage from opkg_conf_parse-file */
 153                    return OPKG_CONF_ERR_PARSE;
 154                }
 155      }
 156
 157      offline_root = conf->offline_root;
 158      opkg_conf_override_string(&conf->offline_root, args->offline_root);
 159
 160      if (conf->offline_root)
 161           sprintf_alloc(&etc_opkg_conf_pattern, "%s/etc/opkg/*.conf", conf->offline_root);
 162      else {
 163           char *conf_file_dir = getenv("OPKG_CONF_DIR");
 164           if (conf_file_dir == NULL)
 165                   conf_file_dir = ARGS_DEFAULT_CONF_FILE_DIR;
 166           sprintf_alloc(&etc_opkg_conf_pattern, "%s/*.conf", conf_file_dir);
 167      }
 168      memset(&globbuf, 0, sizeof(globbuf));
 169      err = glob(etc_opkg_conf_pattern, 0, NULL, &globbuf);
 170      free (etc_opkg_conf_pattern);
 171      if (!err) {
 172           int i;
 173           for (i = 0; i < globbuf.gl_pathc; i++) {
 174                if (globbuf.gl_pathv[i])
 175                     if (args->conf_file &&
 176                                 !strcmp(args->conf_file, globbuf.gl_pathv[i]))
 177                             continue;
 178                     if ( opkg_conf_parse_file(conf, globbuf.gl_pathv[i],
 179                                          &conf->pkg_src_list, &tmp_dest_nv_pair_list)<0) {
 180                         /* Memory leakage from opkg_conf_parse-file */
 181                         return OPKG_CONF_ERR_PARSE;
 182                     }
 183                     if (offline_root != conf->offline_root) {
 184                         opkg_message(conf, OPKG_ERROR,
 185                                         "Config file %s, within an offline "
 186                                         "root contains option offline_root.\n",
 187                                        globbuf.gl_pathv[i]);
 188                         return OPKG_CONF_ERR_PARSE;
 189                     }
 190           }
 191      }
 192      globfree(&globbuf);
 193
 194      opkg_conf_override_string(&conf->offline_root_path,
 195                                args->offline_root_path);
 196      opkg_conf_override_string(&conf->offline_root_pre_script_cmd,
 197                                args->offline_root_pre_script_cmd);
 198      opkg_conf_override_string(&conf->offline_root_post_script_cmd,
 199                                args->offline_root_post_script_cmd);
 200
 201      opkg_conf_override_string(&conf->cache, args->cache);
 202
 203      /* check for lock file */
 204      if (conf->offline_root)
 205        sprintf_alloc (&lock_file, "%s/%s/lock", conf->offline_root, OPKG_STATE_DIR_PREFIX);
 206      else
 207        sprintf_alloc (&lock_file, "%s/lock", OPKG_STATE_DIR_PREFIX);
 208
 209      err = conf->lock_fd = creat (lock_file, S_IRUSR | S_IWUSR | S_IRGRP);
 210      if (err != -1)
 211        err = lockf (conf->lock_fd, F_TLOCK, 0);
 212      errno_copy = errno;
 213
 214      if (err) {
 215        opkg_message (conf, OPKG_ERROR, "Could not lock %s: %s\n",
 216                  lock_file, strerror(errno_copy));
 217        free(lock_file);
 218        return OPKG_CONF_ERR_LOCK;
 219      }
 220      free(lock_file);
 221
 222      if (args->tmp_dir)
 223           tmp_dir_base = args->tmp_dir;
 224      else
 225           tmp_dir_base = getenv("TMPDIR");
 226      sprintf_alloc(&conf->tmp_dir, "%s/%s",
 227                    tmp_dir_base ? tmp_dir_base : OPKG_CONF_DEFAULT_TMP_DIR_BASE,
 228                    OPKG_CONF_TMP_DIR_SUFFIX);
 229      conf->tmp_dir = mkdtemp(conf->tmp_dir);
 230      if (conf->tmp_dir == NULL) {
 231           opkg_message(conf, OPKG_ERROR,
 232                           "%s: Creating temp dir %s failed: %s\n",
 233                           conf->tmp_dir, strerror(errno));
 234           return OPKG_CONF_ERR_TMP_DIR;
 235      }
 236
 237      pkg_hash_init("pkg-hash", &conf->pkg_hash, OPKG_CONF_DEFAULT_HASH_LEN);
 238      hash_table_init("file-hash", &conf->file_hash, OPKG_CONF_DEFAULT_HASH_LEN);
 239      hash_table_init("obs-file-hash", &conf->obs_file_hash, OPKG_CONF_DEFAULT_HASH_LEN);
 240
 241      if (conf->lists_dir == NULL)
 242         conf->lists_dir = xstrdup(OPKG_CONF_LISTS_DIR);
 243
 244      if (conf->offline_root) {
 245             char *tmp;
 246             sprintf_alloc(&tmp, "%s/%s", conf->offline_root, conf->lists_dir);
 247             free(conf->lists_dir);
 248             conf->lists_dir = tmp;
 249      }
 250
 251      sprintf_alloc(&conf->pending_dir, "%s/pending", conf->lists_dir);
 252
 253      /* if no architectures were defined, then default all, noarch, and host architecture */
 254      if (nv_pair_list_empty(&conf->arch_list)) {
 255           nv_pair_list_append(&conf->arch_list, "all", "1");
 256           nv_pair_list_append(&conf->arch_list, "noarch", "1");
 257           nv_pair_list_append(&conf->arch_list, HOST_CPU_STR, "10");
 258      }
 259
 260      /* Even if there is no conf file, we'll need at least one dest. */
 261      if (nv_pair_list_empty(&tmp_dest_nv_pair_list)) {
 262           nv_pair_list_append(&tmp_dest_nv_pair_list,
 263                               OPKG_CONF_DEFAULT_DEST_NAME,
 264                               OPKG_CONF_DEFAULT_DEST_ROOT_DIR);
 265      }
 266
 267      /* After parsing the file, set options from command-line, (so that
 268         command-line arguments take precedence) */
 269      /* XXX: CLEANUP: The interaction between args.c and opkg_conf.c
 270         really needs to be cleaned up. There is so much duplication
 271         right now it is ridiculous. Maybe opkg_conf_t should just save
 272         a pointer to args_t (which could then not be freed), rather
 273         than duplicating every field here? */
 274      if (args->autoremove) {
 275           conf->autoremove = 1;
 276      }
 277      if (args->force_depends) {
 278           conf->force_depends = 1;
 279      }
 280      if (args->force_defaults) {
 281           conf->force_defaults = 1;
 282      }
 283      if (args->force_maintainer) {
 284           conf->force_maintainer = 1;
 285      }
 286      if (args->force_overwrite) {
 287           conf->force_overwrite = 1;
 288      }
 289      if (args->force_downgrade) {
 290           conf->force_downgrade = 1;
 291      }
 292      if (args->force_space) {
 293           conf->force_space = 1;
 294      }
 295      if (args->force_reinstall) {
 296           conf->force_reinstall = 1;
 297      }
 298      if (args->force_removal_of_dependent_packages) {
 299           conf->force_removal_of_dependent_packages = 1;
 300      }
 301      if (args->force_removal_of_essential_packages) {
 302           conf->force_removal_of_essential_packages = 1;
 303      }
 304      if (args->nodeps) {
 305           conf->nodeps = 1;
 306      }
 307      if (args->noaction) {
 308           conf->noaction = 1;
 309      }
 310      if (args->query_all) {
 311           conf->query_all = 1;
 312      }
 313      if (args->verbosity != conf->verbosity) {
 314           conf->verbosity = args->verbosity;
 315      }
 316
 317 /* Pigi: added a flag to disable the checking of structures if the command does not need to
 318          read anything from there.
 319 */
 320      if ( !(args->nocheckfordirorfile)){
 321         /* need to run load the source list before dest list -Jamey */
 322         if ( !(args->noreadfeedsfile))
 323            set_and_load_pkg_src_list(conf, &conf->pkg_src_list);
 324
 325         /* Now that we have resolved conf->offline_root, we can commit to
 326            the directory names for the dests and load in all the package
 327            lists. */
 328         set_and_load_pkg_dest_list(conf, &tmp_dest_nv_pair_list);
 329
 330         if (args->dest) {
 331              err = opkg_conf_set_default_dest(conf, args->dest);
 332              if (err) {
 333                   return OPKG_CONF_ERR_DEFAULT_DEST;
 334              }
 335         }
 336      }
 337      nv_pair_list_deinit(&tmp_dest_nv_pair_list);
 338
 339      return 0;
 340 }
 341
 342 void opkg_conf_deinit(opkg_conf_t *conf)
 343 {
 344      int err;
 345      char *cmd;
 346
 347      sprintf_alloc(&cmd, "rm -fr %s\n", conf->tmp_dir);
 348      err = xsystem(cmd);
 349      free(cmd);
 350
 351      free(conf->tmp_dir);
 352      free(conf->lists_dir);
 353      free(conf->pending_dir);
 354
 355      pkg_src_list_deinit(&conf->pkg_src_list);
 356      pkg_dest_list_deinit(&conf->pkg_dest_list);
 357      nv_pair_list_deinit(&conf->arch_list);
 358
 359      opkg_conf_free_string(&conf->cache);
 360
 361      opkg_conf_free_string(&conf->ftp_proxy);
 362      opkg_conf_free_string(&conf->http_proxy);
 363      opkg_conf_free_string(&conf->no_proxy);
 364
 365      opkg_conf_free_string(&conf->offline_root);
 366      opkg_conf_free_string(&conf->offline_root_path);
 367      opkg_conf_free_string(&conf->offline_root_pre_script_cmd);
 368      opkg_conf_free_string(&conf->offline_root_post_script_cmd);
 369
 370      opkg_conf_free_string(&conf->proxy_passwd);
 371      opkg_conf_free_string(&conf->proxy_user);
 372
 373 #if defined(HAVE_OPENSSL)
 374      opkg_conf_free_string(&conf->signature_ca_file);
 375      opkg_conf_free_string(&conf->signature_ca_path);
 376 #endif
 377
 378 #if defined(HAVE_SSLCURL)
 379      opkg_conf_free_string(&conf->ssl_engine);
 380      opkg_conf_free_string(&conf->ssl_cert);
 381      opkg_conf_free_string(&conf->ssl_cert_type);
 382      opkg_conf_free_string(&conf->ssl_key);
 383      opkg_conf_free_string(&conf->ssl_key_type);
 384      opkg_conf_free_string(&conf->ssl_key_passwd);
 385      opkg_conf_free_string(&conf->ssl_ca_file);
 386      opkg_conf_free_string(&conf->ssl_ca_path);
 387 #endif
 388
 389      if (conf->verbosity >= OPKG_DEBUG) {
 390           int i;
 391           hash_table_t *hashes[] = {
 392                &conf->pkg_hash,
 393                &conf->file_hash,
 394                &conf->obs_file_hash };
 395           for (i = 0; i < 3; i++) {
 396                hash_table_t *hash = hashes[i];
 397                int c = 0;
 398                int n_conflicts = 0;
 399                int j;
 400                for (j = 0; j < hash->n_entries; j++) {
 401                     int len = 0;
 402                     hash_entry_t *e = &hash->entries[j];
 403                     if (e->next)
 404                          n_conflicts++;
 405                     while (e && e->key) {
 406                          len++;
 407                          e = e->next;
 408                     }
 409                     if (len > c)
 410                          c = len;
 411                }
 412                opkg_message(conf, OPKG_DEBUG, "hash_table[%s] n_buckets=%d n_elements=%d max_conflicts=%d n_conflicts=%d\n",
 413                             hash->name, hash->n_entries, hash->n_elements, c, n_conflicts);
 414           }
 415      }
 416
 417      if (&conf->pkg_hash)
 418                     pkg_hash_deinit(&conf->pkg_hash);
 419      if (&conf->file_hash)
 420                     hash_table_deinit(&conf->file_hash);
 421      if (&conf->obs_file_hash)
 422                     hash_table_deinit(&conf->obs_file_hash);
 423
 424      lockf(conf->lock_fd, F_ULOCK, 0);
 425      close(conf->lock_fd);
 426 }
 427
 428 static int opkg_conf_set_default_dest(opkg_conf_t *conf,
 429                                       const char *default_dest_name)
 430 {
 431      pkg_dest_list_elt_t *iter;
 432      pkg_dest_t *dest;
 433
 434      for (iter = void_list_first(&conf->pkg_dest_list); iter; iter = void_list_next(&conf->pkg_dest_list, iter)) {
 435           dest = (pkg_dest_t *)iter->data;
 436           if (strcmp(dest->name, default_dest_name) == 0) {
 437                conf->default_dest = dest;
 438                conf->restrict_to_default_dest = 1;
 439                return 0;
 440           }
 441      }
 442
 443      fprintf(stderr, "ERROR: Unknown dest name: `%s'\n", default_dest_name);
 444
 445      return 1;
 446 }
 447
 448 static int set_and_load_pkg_src_list(opkg_conf_t *conf, pkg_src_list_t *pkg_src_list)
 449 {
 450      pkg_src_list_elt_t *iter;
 451      pkg_src_t *src;
 452      char *list_file;
 453
 454      for (iter = void_list_first(pkg_src_list); iter; iter = void_list_next(pkg_src_list, iter)) {
 455           src = (pkg_src_t *)iter->data;
 456           if (src == NULL) {
 457                continue;
 458           }
 459
 460           sprintf_alloc(&list_file, "%s/%s",
 461                           conf->restrict_to_default_dest ? conf->default_dest->lists_dir : conf->lists_dir,
 462                           src->name);
 463
 464           if (file_exists(list_file)) {
 465                pkg_hash_add_from_file(conf, list_file, src, NULL, 0);
 466           }
 467           free(list_file);
 468      }
 469
 470      return 0;
 471 }
 472
 473 static int set_and_load_pkg_dest_list(opkg_conf_t *conf, nv_pair_list_t *nv_pair_list)
 474 {
 475      nv_pair_list_elt_t *iter;
 476      nv_pair_t *nv_pair;
 477      pkg_dest_t *dest;
 478      char *root_dir;
 479
 480      for (iter = nv_pair_list_first(nv_pair_list); iter; iter = nv_pair_list_next(nv_pair_list, iter)) {
 481           nv_pair = (nv_pair_t *)iter->data;
 482
 483           if (conf->offline_root) {
 484                sprintf_alloc(&root_dir, "%s%s", conf->offline_root, nv_pair->value);
 485           } else {
 486                root_dir = xstrdup(nv_pair->value);
 487           }
 488           dest = pkg_dest_list_append(&conf->pkg_dest_list, nv_pair->name, root_dir, conf->lists_dir);
 489           free(root_dir);
 490           if (dest == NULL) {
 491                continue;
 492           }
 493           if (conf->default_dest == NULL) {
 494                conf->default_dest = dest;
 495           }
 496           if (file_exists(dest->status_file_name)) {
 497                pkg_hash_add_from_file(conf, dest->status_file_name,
 498                                       NULL, dest, 1);
 499           }
 500      }
 501
 502      return 0;
 503 }
 504
 505 static int opkg_conf_parse_file(opkg_conf_t *conf, const char *filename,
 506                                 pkg_src_list_t *pkg_src_list,
 507                                 nv_pair_list_t *tmp_dest_nv_pair_list)
 508 {
 509      int err;
 510      opkg_option_t * options;
 511      FILE *file;
 512      regex_t valid_line_re, comment_re;
 513 #define regmatch_size 12
 514      regmatch_t regmatch[regmatch_size];
 515
 516      opkg_init_options_array(conf, &options);
 517
 518      file = fopen(filename, "r");
 519      if (file == NULL) {
 520           fprintf(stderr, "%s: failed to open %s: %s\n",
 521                   __FUNCTION__, filename, strerror(errno));
 522           free(options);
 523           return -1;
 524      }
 525      opkg_message(conf, OPKG_NOTICE, "loading conf file %s\n", filename);
 526
 527      err = xregcomp(&comment_re,
 528                     "^[[:space:]]*(#.*|[[:space:]]*)$",
 529                     REG_EXTENDED);
 530      if (err) {
 531           free(options);
 532           return -1;
 533      }
 534      err = xregcomp(&valid_line_re, "^[[:space:]]*(\"([^\"]*)\"|([^[:space:]]*))[[:space:]]*(\"([^\"]*)\"|([^[:space:]]*))[[:space:]]*(\"([^\"]*)\"|([^[:space:]]*))([[:space:]]+([^[:space:]]+))?[[:space:]]*$", REG_EXTENDED);
 535      if (err) {
 536           free(options);
 537           return -1;
 538      }
 539
 540      while(1) {
 541           int line_num = 0;
 542           char *line;
 543           char *type, *name, *value, *extra;
 544
 545           line = file_read_line_alloc(file);
 546           line_num++;
 547           if (line == NULL) {
 548                break;
 549           }
 550
 551           str_chomp(line);
 552
 553           if (regexec(&comment_re, line, 0, 0, 0) == 0) {
 554                goto NEXT_LINE;
 555           }
 556
 557           if (regexec(&valid_line_re, line, regmatch_size, regmatch, 0) == REG_NOMATCH) {
 558                str_chomp(line);
 559                fprintf(stderr, "%s:%d: Ignoring invalid line: `%s'\n",
 560                        filename, line_num, line);
 561                goto NEXT_LINE;
 562           }
 563
 564           /* This has to be so ugly to deal with optional quotation marks */
 565           if (regmatch[2].rm_so > 0) {
 566                type = xstrndup(line + regmatch[2].rm_so,
 567                               regmatch[2].rm_eo - regmatch[2].rm_so);
 568           } else {
 569                type = xstrndup(line + regmatch[3].rm_so,
 570                               regmatch[3].rm_eo - regmatch[3].rm_so);
 571           }
 572           if (regmatch[5].rm_so > 0) {
 573                name = xstrndup(line + regmatch[5].rm_so,
 574                               regmatch[5].rm_eo - regmatch[5].rm_so);
 575           } else {
 576                name = xstrndup(line + regmatch[6].rm_so,
 577                               regmatch[6].rm_eo - regmatch[6].rm_so);
 578           }
 579           if (regmatch[8].rm_so > 0) {
 580                value = xstrndup(line + regmatch[8].rm_so,
 581                                regmatch[8].rm_eo - regmatch[8].rm_so);
 582           } else {
 583                value = xstrndup(line + regmatch[9].rm_so,
 584                                regmatch[9].rm_eo - regmatch[9].rm_so);
 585           }
 586           extra = NULL;
 587           if (regmatch[11].rm_so > 0) {
 588                extra = xstrndup (line + regmatch[11].rm_so,
 589                                 regmatch[11].rm_eo - regmatch[11].rm_so);
 590           }
 591
 592           /* We use the tmp_dest_nv_pair_list below instead of
 593              conf->pkg_dest_list because we might encounter an
 594              offline_root option later and that would invalidate the
 595              directories we would have computed in
 596              pkg_dest_list_init. (We do a similar thing with
 597              tmp_src_nv_pair_list for sake of symmetry.) */
 598           if (strcmp(type, "option") == 0) {
 599                opkg_conf_set_option(options, name, value);
 600           } else if (strcmp(type, "src") == 0) {
 601                if (!nv_pair_list_find((nv_pair_list_t*) pkg_src_list, name)) {
 602                     pkg_src_list_append (pkg_src_list, name, value, extra, 0);
 603                } else {
 604                     opkg_message(conf, OPKG_ERROR, "ERROR: duplicate src declaration.  Skipping:\n\t src %s %s\n",
 605                                  name, value);
 606                }
 607           } else if (strcmp(type, "src/gz") == 0) {
 608                if (!nv_pair_list_find((nv_pair_list_t*) pkg_src_list, name)) {
 609                     pkg_src_list_append (pkg_src_list, name, value, extra, 1);
 610                } else {
 611                     opkg_message(conf, OPKG_ERROR, "ERROR: duplicate src declaration.  Skipping:\n\t src %s %s\n",
 612                                  name, value);
 613                }
 614           } else if (strcmp(type, "dest") == 0) {
 615                nv_pair_list_append(tmp_dest_nv_pair_list, name, value);
 616           } else if (strcmp(type, "lists_dir") == 0) {
 617                conf->lists_dir = xstrdup(value);
 618           } else if (strcmp(type, "arch") == 0) {
 619                opkg_message(conf, OPKG_INFO, "supported arch %s priority (%s)\n", name, value);
 620                if (!value) {
 621                     opkg_message(conf, OPKG_NOTICE, "defaulting architecture %s priority to 10\n", name);
 622                     value = xstrdup("10");
 623                }
 624                nv_pair_list_append(&conf->arch_list, name, value);
 625           } else {
 626                fprintf(stderr, "WARNING: Ignoring unknown configuration "
 627                        "parameter: %s %s %s\n", type, name, value);
 628                free(options);
 629                return -1;
 630           }
 631
 632           free(type);
 633           free(name);
 634           free(value);
 635           if (extra)
 636                free (extra);
 637
 638      NEXT_LINE:
 639           free(line);
 640      }
 641
 642      free(options);
 643      regfree(&comment_re);
 644      regfree(&valid_line_re);
 645      fclose(file);
 646
 647      return 0;
 648 }
 649
 650 static int opkg_conf_set_option(const opkg_option_t *options,
 651                                 const char *name, const char *value)
 652 {
 653      int i = 0;
 654      while (options[i].name) {
 655           if (strcmp(options[i].name, name) == 0) {
 656                switch (options[i].type) {
 657                case OPKG_OPT_TYPE_BOOL:
 658                     *((int *)options[i].value) = 1;
 659                     return 0;
 660                case OPKG_OPT_TYPE_INT:
 661                     if (value) {
 662                          *((int *)options[i].value) = atoi(value);
 663                          return 0;
 664                     } else {
 665                          printf("%s: Option %s need an argument\n",
 666                                 __FUNCTION__, name);
 667                          return EINVAL;
 668                     }
 669                case OPKG_OPT_TYPE_STRING:
 670                     if (value) {
 671                          *((char **)options[i].value) = xstrdup(value);
 672                          return 0;
 673                     } else {
 674                          printf("%s: Option %s need an argument\n",
 675                                 __FUNCTION__, name);
 676                          return EINVAL;
 677                     }
 678                }
 679           }
 680           i++;
 681      }
 682
 683      fprintf(stderr, "%s: Unrecognized option: %s=%s\n",
 684              __FUNCTION__, name, value);
 685      return EINVAL;
 686 }
 687
 688 int opkg_conf_write_status_files(opkg_conf_t *conf)
 689 {
 690      pkg_dest_t *dest;
 691      pkg_vec_t *all;
 692      pkg_t *pkg;
 693      int i;
 694      FILE *fp;
 695
 696      if (conf->noaction)
 697           return 0;
 698
 699      dest = (pkg_dest_t *)void_list_first(&conf->pkg_dest_list)->data;
 700
 701      fp = fopen(dest->status_file_name, "w");
 702      if (fp == NULL) {
 703          fprintf(stderr, "%s: Can't open status file: %s for writing: %s\n",
 704                  __FUNCTION__, dest->status_file_name, strerror(errno));
 705          return -1;
 706      }
 707
 708      all = pkg_vec_alloc();
 709      pkg_hash_fetch_available(&conf->pkg_hash, all);
 710
 711      for(i = 0; i < all->len; i++) {
 712           pkg = all->pkgs[i];
 713           /* We don't need most uninstalled packages in the status file */
 714           if (pkg->state_status == SS_NOT_INSTALLED
 715               && (pkg->state_want == SW_UNKNOWN
 716                   || pkg->state_want == SW_DEINSTALL
 717                   || pkg->state_want == SW_PURGE)) {
 718                continue;
 719           }
 720           if (pkg->dest == NULL) {
 721                fprintf(stderr, "%s: ERROR: Can't write status for "
 722                        "package %s since it has a NULL dest\n",
 723                        __FUNCTION__, pkg->name);
 724                continue;
 725           }
 726           pkg_print_status(pkg, fp);
 727      }
 728
 729      pkg_vec_free(all);
 730      fclose(fp);
 731
 732      return 0;
 733 }
 734
 735
 736 char *root_filename_alloc(opkg_conf_t *conf, char *filename)
 737 {
 738      char *root_filename;
 739      sprintf_alloc(&root_filename, "%s%s", (conf->offline_root ? conf->offline_root : ""), filename);
 740      return root_filename;
 741 }