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 extern char *conf_file_dir;
  39
  40 static int opkg_conf_parse_file(opkg_conf_t *conf, const char *filename,
  41                                 pkg_src_list_t *pkg_src_list,
  42                                 nv_pair_list_t *tmp_dest_nv_pair_list,
  43                                 char **tmp_lists_dir);
  44 static int opkg_conf_set_option(const opkg_option_t *options,
  45                                 const char *name, const char *value);
  46 static int opkg_conf_set_default_dest(opkg_conf_t *conf,
  47                                       const char *default_dest_name);
  48 static int set_and_load_pkg_src_list(opkg_conf_t *conf,
  49                                      pkg_src_list_t *nv_pair_list);
  50 static int set_and_load_pkg_dest_list(opkg_conf_t *conf,
  51                                       nv_pair_list_t *nv_pair_list, char * lists_dir);
  52
  53 void opkg_init_options_array(const opkg_conf_t *conf, opkg_option_t **options)
  54 {
  55      opkg_option_t tmp[] = {
  56           { "cache", OPKG_OPT_TYPE_STRING, &conf->cache},
  57           { "force_defaults", OPKG_OPT_TYPE_BOOL, &conf->force_defaults },
  58           { "force_maintainer", OPKG_OPT_TYPE_BOOL, &conf->force_maintainer },
  59           { "force_depends", OPKG_OPT_TYPE_BOOL, &conf->force_depends },
  60           { "force_overwrite", OPKG_OPT_TYPE_BOOL, &conf->force_overwrite },
  61           { "force_downgrade", OPKG_OPT_TYPE_BOOL, &conf->force_downgrade },
  62           { "force_reinstall", OPKG_OPT_TYPE_BOOL, &conf->force_reinstall },
  63           { "force_space", OPKG_OPT_TYPE_BOOL, &conf->force_space },
  64           { "check_signature", OPKG_OPT_TYPE_INT, &conf->check_signature },
  65           { "ftp_proxy", OPKG_OPT_TYPE_STRING, &conf->ftp_proxy },
  66           { "http_proxy", OPKG_OPT_TYPE_STRING, &conf->http_proxy },
  67           { "no_proxy", OPKG_OPT_TYPE_STRING, &conf->no_proxy },
  68           { "test", OPKG_OPT_TYPE_INT, &conf->noaction },
  69           { "noaction", OPKG_OPT_TYPE_INT, &conf->noaction },
  70           { "nodeps", OPKG_OPT_TYPE_BOOL, &conf->nodeps },
  71           { "offline_root", OPKG_OPT_TYPE_STRING, &conf->offline_root },
  72           { "offline_root_path", OPKG_OPT_TYPE_STRING, &conf->offline_root_path },
  73           { "offline_root_post_script_cmd", OPKG_OPT_TYPE_STRING, &conf->offline_root_post_script_cmd },
  74           { "offline_root_pre_script_cmd", OPKG_OPT_TYPE_STRING, &conf->offline_root_pre_script_cmd },
  75           { "proxy_passwd", OPKG_OPT_TYPE_STRING, &conf->proxy_passwd },
  76           { "proxy_user", OPKG_OPT_TYPE_STRING, &conf->proxy_user },
  77           { "query-all", OPKG_OPT_TYPE_BOOL, &conf->query_all },
  78           { "verbosity", OPKG_OPT_TYPE_BOOL, &conf->verbosity },
  79 #if defined(HAVE_OPENSSL)
  80           { "signature_ca_file", OPKG_OPT_TYPE_STRING, &conf->signature_ca_file },
  81           { "signature_ca_path", OPKG_OPT_TYPE_STRING, &conf->signature_ca_path },
  82 #endif
  83 #if defined(HAVE_PATHFINDER)
  84           { "check_x509_path", OPKG_OPT_TYPE_INT, &conf->check_x509_path },
  85 #endif
  86 #if defined(HAVE_SSLCURL) && defined(HAVE_CURL)
  87           { "ssl_engine", OPKG_OPT_TYPE_STRING, &conf->ssl_engine },
  88           { "ssl_cert", OPKG_OPT_TYPE_STRING, &conf->ssl_cert },
  89           { "ssl_cert_type", OPKG_OPT_TYPE_STRING, &conf->ssl_cert_type },
  90           { "ssl_key", OPKG_OPT_TYPE_STRING, &conf->ssl_key },
  91           { "ssl_key_type", OPKG_OPT_TYPE_STRING, &conf->ssl_key_type },
  92           { "ssl_key_passwd", OPKG_OPT_TYPE_STRING, &conf->ssl_key_passwd },
  93           { "ssl_ca_file", OPKG_OPT_TYPE_STRING, &conf->ssl_ca_file },
  94           { "ssl_ca_path", OPKG_OPT_TYPE_STRING, &conf->ssl_ca_path },
  95           { "ssl_dont_verify_peer", OPKG_OPT_TYPE_BOOL, &conf->ssl_dont_verify_peer },
  96 #endif
  97           { NULL }
  98      };
  99
 100      *options = xcalloc(1, sizeof(tmp));
 101      memcpy(*options, tmp, sizeof(tmp));
 102 };
 103
 104 static void opkg_conf_override_string(char **conf_str, char *arg_str)
 105 {
 106      if (arg_str) {
 107           if (*conf_str) {
 108                free(*conf_str);
 109           }
 110           *conf_str = xstrdup(arg_str);
 111      }
 112 }
 113
 114 static void opkg_conf_free_string(char **conf_str)
 115 {
 116      if (*conf_str) {
 117           free(*conf_str);
 118           *conf_str = NULL;
 119      }
 120 }
 121
 122 int opkg_conf_init(opkg_conf_t *conf, const args_t *args)
 123 {
 124      int err;
 125      int errno_copy;
 126      char *tmp_dir_base;
 127      nv_pair_list_t tmp_dest_nv_pair_list;
 128      char *lists_dir = NULL, *lock_file = NULL;
 129      glob_t globbuf;
 130      char *etc_opkg_conf_pattern;
 131      char *pending_dir = NULL;
 132
 133      memset(conf, 0, sizeof(opkg_conf_t));
 134
 135 #if defined(HAVE_PATHFINDER)
 136      conf->check_x509_path = 1;
 137 #endif
 138
 139      pkg_src_list_init(&conf->pkg_src_list);
 140
 141      nv_pair_list_init(&tmp_dest_nv_pair_list);
 142      pkg_dest_list_init(&conf->pkg_dest_list);
 143
 144      nv_pair_list_init(&conf->arch_list);
 145
 146      conf->restrict_to_default_dest = 0;
 147      conf->default_dest = NULL;
 148
 149      /* check for lock file */
 150      if (args->offline_root)
 151        sprintf_alloc (&lock_file, "%s/%s/lock", args->offline_root, OPKG_STATE_DIR_PREFIX);
 152      else
 153        sprintf_alloc (&lock_file, "%s/lock", OPKG_STATE_DIR_PREFIX);
 154
 155      conf->lock_fd = creat (lock_file, S_IRUSR | S_IWUSR | S_IRGRP);
 156      err = lockf (conf->lock_fd, F_TLOCK, 0);
 157      errno_copy = errno;
 158
 159      free (lock_file);
 160
 161      if (err)
 162      {
 163        if(args->offline_root) {
 164          opkg_message (conf, OPKG_ERROR, "Could not obtain administrative lock for offline root (ERR: %s)  at %s/%s/lock\n",
 165                  strerror(errno_copy), args->offline_root, OPKG_STATE_DIR_PREFIX);
 166        } else {
 167          opkg_message (conf, OPKG_ERROR, "Could not obtain administrative lock (ERR: %s) at %s/lock\n",
 168                  strerror(errno_copy), OPKG_STATE_DIR_PREFIX);
 169        }
 170        return OPKG_CONF_ERR_LOCK;
 171      }
 172
 173      if (args->tmp_dir)
 174           tmp_dir_base = args->tmp_dir;
 175      else
 176           tmp_dir_base = getenv("TMPDIR");
 177      sprintf_alloc(&conf->tmp_dir, "%s/%s",
 178                    tmp_dir_base ? tmp_dir_base : OPKG_CONF_DEFAULT_TMP_DIR_BASE,
 179                    OPKG_CONF_TMP_DIR_SUFFIX);
 180      conf->tmp_dir = mkdtemp(conf->tmp_dir);
 181      if (conf->tmp_dir == NULL) {
 182           fprintf(stderr, "%s: Failed to create temporary directory `%s': %s\n",
 183                   __FUNCTION__, conf->tmp_dir, strerror(errno));
 184           return OPKG_CONF_ERR_TMP_DIR;
 185      }
 186
 187      pkg_hash_init("pkg-hash", &conf->pkg_hash, OPKG_CONF_DEFAULT_HASH_LEN);
 188      hash_table_init("file-hash", &conf->file_hash, OPKG_CONF_DEFAULT_HASH_LEN);
 189      hash_table_init("obs-file-hash", &conf->obs_file_hash, OPKG_CONF_DEFAULT_HASH_LEN);
 190      lists_dir=xmalloc(1);
 191      lists_dir[0]='\0';
 192      if (args->conf_file) {
 193           struct stat stat_buf;
 194           err = stat(args->conf_file, &stat_buf);
 195           if (err == 0)
 196                if (opkg_conf_parse_file(conf, args->conf_file,
 197                                     &conf->pkg_src_list, &tmp_dest_nv_pair_list,&lists_dir)<0) {
 198                    /* Memory leakage from opkg_conf_parse-file */
 199                    return OPKG_CONF_ERR_PARSE;
 200                }
 201      }
 202
 203      if (strlen(lists_dir)<=1 ){
 204         lists_dir = xrealloc(lists_dir,strlen(OPKG_CONF_LISTS_DIR)+2);
 205         sprintf (lists_dir,"%s",OPKG_CONF_LISTS_DIR);
 206      }
 207
 208      if (args->offline_root) {
 209             char *tmp;
 210             sprintf_alloc(&tmp, "%s/%s",args->offline_root,lists_dir);
 211             free(lists_dir);
 212             lists_dir = tmp;
 213      }
 214
 215      pending_dir = xcalloc(1, strlen(lists_dir)+strlen("/pending")+5);
 216      snprintf(pending_dir,strlen(lists_dir)+strlen("/pending") ,"%s%s",lists_dir,"/pending");
 217
 218      conf->lists_dir = xstrdup(lists_dir);
 219      conf->pending_dir = xstrdup(pending_dir);
 220
 221      if (args->offline_root)
 222           sprintf_alloc(&etc_opkg_conf_pattern, "%s/etc/opkg/*.conf", args->offline_root);
 223      else
 224           sprintf_alloc(&etc_opkg_conf_pattern, "%s/*.conf", conf_file_dir);
 225      memset(&globbuf, 0, sizeof(globbuf));
 226      err = glob(etc_opkg_conf_pattern, 0, NULL, &globbuf);
 227      free (etc_opkg_conf_pattern);
 228      if (!err) {
 229           int i;
 230           for (i = 0; i < globbuf.gl_pathc; i++) {
 231                if (globbuf.gl_pathv[i])
 232                     if ( opkg_conf_parse_file(conf, globbuf.gl_pathv[i],
 233                                          &conf->pkg_src_list, &tmp_dest_nv_pair_list,&lists_dir)<0) {
 234                         /* Memory leakage from opkg_conf_parse-file */
 235                         return OPKG_CONF_ERR_PARSE;
 236                     }
 237           }
 238      }
 239      globfree(&globbuf);
 240
 241      /* if no architectures were defined, then default all, noarch, and host architecture */
 242      if (nv_pair_list_empty(&conf->arch_list)) {
 243           nv_pair_list_append(&conf->arch_list, "all", "1");
 244           nv_pair_list_append(&conf->arch_list, "noarch", "1");
 245           nv_pair_list_append(&conf->arch_list, HOST_CPU_STR, "10");
 246      }
 247
 248      /* Even if there is no conf file, we'll need at least one dest. */
 249      if (nv_pair_list_empty(&tmp_dest_nv_pair_list)) {
 250           nv_pair_list_append(&tmp_dest_nv_pair_list,
 251                               OPKG_CONF_DEFAULT_DEST_NAME,
 252                               OPKG_CONF_DEFAULT_DEST_ROOT_DIR);
 253      }
 254
 255      /* After parsing the file, set options from command-line, (so that
 256         command-line arguments take precedence) */
 257      /* XXX: CLEANUP: The interaction between args.c and opkg_conf.c
 258         really needs to be cleaned up. There is so much duplication
 259         right now it is ridiculous. Maybe opkg_conf_t should just save
 260         a pointer to args_t (which could then not be freed), rather
 261         than duplicating every field here? */
 262      if (args->autoremove) {
 263           conf->autoremove = 1;
 264      }
 265      if (args->force_depends) {
 266           conf->force_depends = 1;
 267      }
 268      if (args->force_defaults) {
 269           conf->force_defaults = 1;
 270      }
 271      if (args->force_maintainer) {
 272           conf->force_maintainer = 1;
 273      }
 274      if (args->force_overwrite) {
 275           conf->force_overwrite = 1;
 276      }
 277      if (args->force_downgrade) {
 278           conf->force_downgrade = 1;
 279      }
 280      if (args->force_space) {
 281           conf->force_space = 1;
 282      }
 283      if (args->force_reinstall) {
 284           conf->force_reinstall = 1;
 285      }
 286      if (args->force_removal_of_dependent_packages) {
 287           conf->force_removal_of_dependent_packages = 1;
 288      }
 289      if (args->force_removal_of_essential_packages) {
 290           conf->force_removal_of_essential_packages = 1;
 291      }
 292      if (args->nodeps) {
 293           conf->nodeps = 1;
 294      }
 295      if (args->noaction) {
 296           conf->noaction = 1;
 297      }
 298      if (args->query_all) {
 299           conf->query_all = 1;
 300      }
 301      if (args->verbosity != conf->verbosity) {
 302           conf->verbosity = args->verbosity;
 303      }
 304
 305      opkg_conf_override_string(&conf->offline_root,
 306                                args->offline_root);
 307      opkg_conf_override_string(&conf->offline_root_path,
 308                                args->offline_root_path);
 309      opkg_conf_override_string(&conf->offline_root_pre_script_cmd,
 310                                args->offline_root_pre_script_cmd);
 311      opkg_conf_override_string(&conf->offline_root_post_script_cmd,
 312                                args->offline_root_post_script_cmd);
 313
 314      opkg_conf_override_string(&conf->cache, args->cache);
 315
 316 /* Pigi: added a flag to disable the checking of structures if the command does not need to
 317          read anything from there.
 318 */
 319      if ( !(args->nocheckfordirorfile)){
 320         /* need to run load the source list before dest list -Jamey */
 321         if ( !(args->noreadfeedsfile))
 322            set_and_load_pkg_src_list(conf, &conf->pkg_src_list);
 323
 324         /* Now that we have resolved conf->offline_root, we can commit to
 325            the directory names for the dests and load in all the package
 326            lists. */
 327         set_and_load_pkg_dest_list(conf, &tmp_dest_nv_pair_list,lists_dir);
 328
 329         if (args->dest) {
 330              err = opkg_conf_set_default_dest(conf, args->dest);
 331              if (err) {
 332                   return OPKG_CONF_ERR_DEFAULT_DEST;
 333              }
 334         }
 335      }
 336      nv_pair_list_deinit(&tmp_dest_nv_pair_list);
 337      free(lists_dir);
 338      free(pending_dir);
 339
 340      return 0;
 341 }
 342
 343 void opkg_conf_deinit(opkg_conf_t *conf)
 344 {
 345 #ifdef OPKG_DEBUG_NO_TMP_CLEANUP
 346 #error
 347      fprintf(stderr, "%s: Not cleaning up %s since opkg compiled "
 348              "with OPKG_DEBUG_NO_TMP_CLEANUP\n",
 349              __FUNCTION__, conf->tmp_dir);
 350 #else
 351      int err;
 352
 353      err = rmdir(conf->tmp_dir);
 354      if (err) {
 355           if (errno == ENOTEMPTY) {
 356                char *cmd;
 357                sprintf_alloc(&cmd, "rm -fr %s\n", conf->tmp_dir);
 358                err = xsystem(cmd);
 359                free(cmd);
 360           }
 361           if (err)
 362                fprintf(stderr, "WARNING: Unable to remove temporary directory: %s: %s\n", conf->tmp_dir, strerror(errno));
 363      }
 364 #endif /* OPKG_DEBUG_NO_TMP_CLEANUP */
 365
 366      free(conf->tmp_dir); /*XXX*/
 367      free(conf->lists_dir);
 368      free(conf->pending_dir);
 369
 370      pkg_src_list_deinit(&conf->pkg_src_list);
 371      pkg_dest_list_deinit(&conf->pkg_dest_list);
 372      nv_pair_list_deinit(&conf->arch_list);
 373
 374      opkg_conf_free_string(&conf->offline_root);
 375      opkg_conf_free_string(&conf->offline_root_path);
 376      opkg_conf_free_string(&conf->offline_root_pre_script_cmd);
 377      opkg_conf_free_string(&conf->offline_root_post_script_cmd);
 378
 379      opkg_conf_free_string(&conf->cache);
 380
 381 #if defined(HAVE_OPENSSL)
 382      opkg_conf_free_string(&conf->signature_ca_file);
 383      opkg_conf_free_string(&conf->signature_ca_path);
 384 #endif
 385
 386 #if defined(HAVE_SSLCURL)
 387      opkg_conf_free_string(&conf->ssl_engine);
 388      opkg_conf_free_string(&conf->ssl_cert);
 389      opkg_conf_free_string(&conf->ssl_cert_type);
 390      opkg_conf_free_string(&conf->ssl_key);
 391      opkg_conf_free_string(&conf->ssl_key_type);
 392      opkg_conf_free_string(&conf->ssl_key_passwd);
 393      opkg_conf_free_string(&conf->ssl_ca_file);
 394      opkg_conf_free_string(&conf->ssl_ca_path);
 395 #endif
 396
 397      if (conf->verbosity > 1) {
 398           int i;
 399           hash_table_t *hashes[] = {
 400                &conf->pkg_hash,
 401                &conf->file_hash,
 402                &conf->obs_file_hash };
 403           for (i = 0; i < 3; i++) {
 404                hash_table_t *hash = hashes[i];
 405                int c = 0;
 406                int n_conflicts = 0;
 407                int j;
 408                for (j = 0; j < hash->n_entries; j++) {
 409                     int len = 0;
 410                     hash_entry_t *e = &hash->entries[j];
 411                     if (e->next)
 412                          n_conflicts++;
 413                     while (e && e->key) {
 414                          len++;
 415                          e = e->next;
 416                     }
 417                     if (len > c)
 418                          c = len;
 419                }
 420                opkg_message(conf, OPKG_DEBUG, "hash_table[%s] n_buckets=%d n_elements=%d max_conflicts=%d n_conflicts=%d\n",
 421                             hash->name, hash->n_entries, hash->n_elements, c, n_conflicts);
 422           }
 423      }
 424
 425      if (&conf->pkg_hash)
 426                     pkg_hash_deinit(&conf->pkg_hash);
 427      if (&conf->file_hash)
 428                     hash_table_deinit(&conf->file_hash);
 429      if (&conf->obs_file_hash)
 430                     hash_table_deinit(&conf->obs_file_hash);
 431 }
 432
 433 static int opkg_conf_set_default_dest(opkg_conf_t *conf,
 434                                       const char *default_dest_name)
 435 {
 436      pkg_dest_list_elt_t *iter;
 437      pkg_dest_t *dest;
 438
 439      for (iter = void_list_first(&conf->pkg_dest_list); iter; iter = void_list_next(&conf->pkg_dest_list, iter)) {
 440           dest = (pkg_dest_t *)iter->data;
 441           if (strcmp(dest->name, default_dest_name) == 0) {
 442                conf->default_dest = dest;
 443                conf->restrict_to_default_dest = 1;
 444                return 0;
 445           }
 446      }
 447
 448      fprintf(stderr, "ERROR: Unknown dest name: `%s'\n", default_dest_name);
 449
 450      return 1;
 451 }
 452
 453 static int set_and_load_pkg_src_list(opkg_conf_t *conf, pkg_src_list_t *pkg_src_list)
 454 {
 455      pkg_src_list_elt_t *iter;
 456      pkg_src_t *src;
 457      char *list_file;
 458
 459      for (iter = void_list_first(pkg_src_list); iter; iter = void_list_next(pkg_src_list, iter)) {
 460           src = (pkg_src_t *)iter->data;
 461           if (src == NULL) {
 462                continue;
 463           }
 464
 465           sprintf_alloc(&list_file, "%s/%s",
 466                           conf->restrict_to_default_dest ? conf->default_dest->lists_dir : conf->lists_dir,
 467                           src->name);
 468
 469           if (file_exists(list_file)) {
 470                pkg_hash_add_from_file(conf, list_file, src, NULL, 0);
 471           }
 472           free(list_file);
 473      }
 474
 475      return 0;
 476 }
 477
 478 static int set_and_load_pkg_dest_list(opkg_conf_t *conf, nv_pair_list_t *nv_pair_list, char *lists_dir )
 479 {
 480      nv_pair_list_elt_t *iter;
 481      nv_pair_t *nv_pair;
 482      pkg_dest_t *dest;
 483      char *root_dir;
 484
 485      for (iter = nv_pair_list_first(nv_pair_list); iter; iter = nv_pair_list_next(nv_pair_list, iter)) {
 486           nv_pair = (nv_pair_t *)iter->data;
 487
 488           if (conf->offline_root) {
 489                sprintf_alloc(&root_dir, "%s%s", conf->offline_root, nv_pair->value);
 490           } else {
 491                root_dir = xstrdup(nv_pair->value);
 492           }
 493           dest = pkg_dest_list_append(&conf->pkg_dest_list, nv_pair->name, root_dir, lists_dir);
 494           free(root_dir);
 495           if (dest == NULL) {
 496                continue;
 497           }
 498           if (conf->default_dest == NULL) {
 499                conf->default_dest = dest;
 500           }
 501           if (file_exists(dest->status_file_name)) {
 502                pkg_hash_add_from_file(conf, dest->status_file_name,
 503                                       NULL, dest, 1);
 504           }
 505      }
 506
 507      return 0;
 508 }
 509
 510 static int opkg_conf_parse_file(opkg_conf_t *conf, const char *filename,
 511                                 pkg_src_list_t *pkg_src_list,
 512                                 nv_pair_list_t *tmp_dest_nv_pair_list,
 513                                 char **lists_dir)
 514 {
 515      int err;
 516      opkg_option_t * options;
 517      FILE *file = fopen(filename, "r");
 518      regex_t valid_line_re, comment_re;
 519 #define regmatch_size 12
 520      regmatch_t regmatch[regmatch_size];
 521
 522      opkg_init_options_array(conf, &options);
 523
 524      if (file == NULL) {
 525           fprintf(stderr, "%s: failed to open %s: %s\n",
 526                   __FUNCTION__, filename, strerror(errno));
 527           free(options);
 528           return errno;
 529      }
 530      opkg_message(conf, OPKG_NOTICE, "loading conf file %s\n", filename);
 531
 532      err = xregcomp(&comment_re,
 533                     "^[[:space:]]*(#.*|[[:space:]]*)$",
 534                     REG_EXTENDED);
 535      if (err) {
 536           free(options);
 537           return err;
 538      }
 539      err = xregcomp(&valid_line_re, "^[[:space:]]*(\"([^\"]*)\"|([^[:space:]]*))[[:space:]]*(\"([^\"]*)\"|([^[:space:]]*))[[:space:]]*(\"([^\"]*)\"|([^[:space:]]*))([[:space:]]+([^[:space:]]+))?[[:space:]]*$", REG_EXTENDED);
 540      if (err) {
 541           free(options);
 542           return err;
 543      }
 544
 545      while(1) {
 546           int line_num = 0;
 547           char *line;
 548           char *type, *name, *value, *extra;
 549
 550           line = file_read_line_alloc(file);
 551           line_num++;
 552           if (line == NULL) {
 553                break;
 554           }
 555
 556           str_chomp(line);
 557
 558           if (regexec(&comment_re, line, 0, 0, 0) == 0) {
 559                goto NEXT_LINE;
 560           }
 561
 562           if (regexec(&valid_line_re, line, regmatch_size, regmatch, 0) == REG_NOMATCH) {
 563                str_chomp(line);
 564                fprintf(stderr, "%s:%d: Ignoring invalid line: `%s'\n",
 565                        filename, line_num, line);
 566                goto NEXT_LINE;
 567           }
 568
 569           /* This has to be so ugly to deal with optional quotation marks */
 570           if (regmatch[2].rm_so > 0) {
 571                type = xstrndup(line + regmatch[2].rm_so,
 572                               regmatch[2].rm_eo - regmatch[2].rm_so);
 573           } else {
 574                type = xstrndup(line + regmatch[3].rm_so,
 575                               regmatch[3].rm_eo - regmatch[3].rm_so);
 576           }
 577           if (regmatch[5].rm_so > 0) {
 578                name = xstrndup(line + regmatch[5].rm_so,
 579                               regmatch[5].rm_eo - regmatch[5].rm_so);
 580           } else {
 581                name = xstrndup(line + regmatch[6].rm_so,
 582                               regmatch[6].rm_eo - regmatch[6].rm_so);
 583           }
 584           if (regmatch[8].rm_so > 0) {
 585                value = xstrndup(line + regmatch[8].rm_so,
 586                                regmatch[8].rm_eo - regmatch[8].rm_so);
 587           } else {
 588                value = xstrndup(line + regmatch[9].rm_so,
 589                                regmatch[9].rm_eo - regmatch[9].rm_so);
 590           }
 591           extra = NULL;
 592           if (regmatch[11].rm_so > 0) {
 593                extra = xstrndup (line + regmatch[11].rm_so,
 594                                 regmatch[11].rm_eo - regmatch[11].rm_so);
 595           }
 596
 597           /* We use the tmp_dest_nv_pair_list below instead of
 598              conf->pkg_dest_list because we might encounter an
 599              offline_root option later and that would invalidate the
 600              directories we would have computed in
 601              pkg_dest_list_init. (We do a similar thing with
 602              tmp_src_nv_pair_list for sake of symmetry.) */
 603           if (strcmp(type, "option") == 0) {
 604                opkg_conf_set_option(options, name, value);
 605           } else if (strcmp(type, "src") == 0) {
 606                if (!nv_pair_list_find((nv_pair_list_t*) pkg_src_list, name)) {
 607                     pkg_src_list_append (pkg_src_list, name, value, extra, 0);
 608                } else {
 609                     opkg_message(conf, OPKG_ERROR, "ERROR: duplicate src declaration.  Skipping:\n\t src %s %s\n",
 610                                  name, value);
 611                }
 612           } else if (strcmp(type, "src/gz") == 0) {
 613                if (!nv_pair_list_find((nv_pair_list_t*) pkg_src_list, name)) {
 614                     pkg_src_list_append (pkg_src_list, name, value, extra, 1);
 615                } else {
 616                     opkg_message(conf, OPKG_ERROR, "ERROR: duplicate src declaration.  Skipping:\n\t src %s %s\n",
 617                                  name, value);
 618                }
 619           } else if (strcmp(type, "dest") == 0) {
 620                nv_pair_list_append(tmp_dest_nv_pair_list, name, value);
 621           } else if (strcmp(type, "lists_dir") == 0) {
 622                *lists_dir = xrealloc(*lists_dir,strlen(value)+1);
 623                sprintf (*lists_dir,"%s",value);
 624           } else if (strcmp(type, "arch") == 0) {
 625                opkg_message(conf, OPKG_INFO, "supported arch %s priority (%s)\n", name, value);
 626                if (!value) {
 627                     opkg_message(conf, OPKG_NOTICE, "defaulting architecture %s priority to 10\n", name);
 628                     value = xstrdup("10");
 629                }
 630                nv_pair_list_append(&conf->arch_list, name, value);
 631           } else {
 632                fprintf(stderr, "WARNING: Ignoring unknown configuration "
 633                        "parameter: %s %s %s\n", type, name, value);
 634                free(options);
 635                return EINVAL;
 636           }
 637
 638           free(type);
 639           free(name);
 640           free(value);
 641           if (extra)
 642                free (extra);
 643
 644      NEXT_LINE:
 645           free(line);
 646      }
 647
 648      free(options);
 649      regfree(&comment_re);
 650      regfree(&valid_line_re);
 651      fclose(file);
 652
 653      return 0;
 654 }
 655
 656 static int opkg_conf_set_option(const opkg_option_t *options,
 657                                 const char *name, const char *value)
 658 {
 659      int i = 0;
 660      while (options[i].name) {
 661           if (strcmp(options[i].name, name) == 0) {
 662                switch (options[i].type) {
 663                case OPKG_OPT_TYPE_BOOL:
 664                     *((int *)options[i].value) = 1;
 665                     return 0;
 666                case OPKG_OPT_TYPE_INT:
 667                     if (value) {
 668                          *((int *)options[i].value) = atoi(value);
 669                          return 0;
 670                     } else {
 671                          printf("%s: Option %s need an argument\n",
 672                                 __FUNCTION__, name);
 673                          return EINVAL;
 674                     }
 675                case OPKG_OPT_TYPE_STRING:
 676                     if (value) {
 677                          *((char **)options[i].value) = xstrdup(value);
 678                          return 0;
 679                     } else {
 680                          printf("%s: Option %s need an argument\n",
 681                                 __FUNCTION__, name);
 682                          return EINVAL;
 683                     }
 684                }
 685           }
 686           i++;
 687      }
 688
 689      fprintf(stderr, "%s: Unrecognized option: %s=%s\n",
 690              __FUNCTION__, name, value);
 691      return EINVAL;
 692 }
 693
 694 int opkg_conf_write_status_files(opkg_conf_t *conf)
 695 {
 696      pkg_dest_t *dest;
 697      pkg_vec_t *all;
 698      pkg_t *pkg;
 699      int i;
 700      int err;
 701      FILE * status_file=NULL;
 702
 703      if (conf->noaction)
 704           return 0;
 705
 706      dest = (pkg_dest_t *)void_list_first(&conf->pkg_dest_list)->data;
 707      status_file = fopen(dest->status_file_tmp_name, "w");
 708      if (status_file == NULL) {
 709          fprintf(stderr, "%s: Can't open status file: %s for writing: %s\n",
 710                  __FUNCTION__, dest->status_file_tmp_name, strerror(errno));
 711      }
 712
 713      all = pkg_vec_alloc();
 714      pkg_hash_fetch_available(&conf->pkg_hash, all);
 715
 716      for(i = 0; i < all->len; i++) {
 717           pkg = all->pkgs[i];
 718           /* We don't need most uninstalled packages in the status file */
 719           if (pkg->state_status == SS_NOT_INSTALLED
 720               && (pkg->state_want == SW_UNKNOWN
 721                   || pkg->state_want == SW_DEINSTALL
 722                   || pkg->state_want == SW_PURGE)) {
 723                continue;
 724           }
 725           if (pkg->dest == NULL) {
 726                fprintf(stderr, "%s: ERROR: Can't write status for "
 727                        "package %s since it has a NULL dest\n",
 728                        __FUNCTION__, pkg->name);
 729                continue;
 730           }
 731           if (status_file) {
 732                pkg_print_status(pkg, status_file);
 733           }
 734      }
 735
 736      pkg_vec_free(all);
 737
 738      if (status_file) {
 739          err = ferror(status_file);
 740          fclose(status_file);
 741          if (!err) {
 742              file_move(dest->status_file_tmp_name, dest->status_file_name);
 743          } else {
 744              fprintf(stderr, "%s: ERROR: An error has occurred writing %s, "
 745                      "retaining old %s\n", __FUNCTION__,
 746                      dest->status_file_tmp_name, dest->status_file_name);
 747          }
 748          status_file = NULL;
 749      }
 750      return 0;
 751 }
 752
 753
 754 char *root_filename_alloc(opkg_conf_t *conf, char *filename)
 755 {
 756      char *root_filename;
 757      sprintf_alloc(&root_filename, "%s%s", (conf->offline_root ? conf->offline_root : ""), filename);
 758      return root_filename;
 759 }