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 int 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_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 = (opkg_option_t *)calloc(1, sizeof(tmp));
  98      if ( options == NULL ){
  99         fprintf(stderr,"%s: Unable to allocate memory\n",__FUNCTION__);
 100         return -1;
 101      }
 102
 103      memcpy(*options, tmp, sizeof(tmp));
 104      return 0;
 105 };
 106
 107 static void opkg_conf_override_string(char **conf_str, char *arg_str)
 108 {
 109      if (arg_str) {
 110           if (*conf_str) {
 111                free(*conf_str);
 112           }
 113           *conf_str = xstrdup(arg_str);
 114      }
 115 }
 116
 117 static void opkg_conf_free_string(char **conf_str)
 118 {
 119      if (*conf_str) {
 120           free(*conf_str);
 121           *conf_str = NULL;
 122      }
 123 }
 124
 125 int opkg_conf_init(opkg_conf_t *conf, const args_t *args)
 126 {
 127      int err;
 128      int errno_copy;
 129      char *tmp_dir_base;
 130      nv_pair_list_t tmp_dest_nv_pair_list;
 131      char *lists_dir = NULL, *lock_file = NULL;
 132      glob_t globbuf;
 133      char *etc_opkg_conf_pattern;
 134      char *pending_dir = NULL;
 135
 136      memset(conf, 0, sizeof(opkg_conf_t));
 137
 138      pkg_src_list_init(&conf->pkg_src_list);
 139
 140      nv_pair_list_init(&tmp_dest_nv_pair_list);
 141      pkg_dest_list_init(&conf->pkg_dest_list);
 142
 143      nv_pair_list_init(&conf->arch_list);
 144
 145      conf->restrict_to_default_dest = 0;
 146      conf->default_dest = NULL;
 147
 148      /* check for lock file */
 149      if (args->offline_root)
 150        sprintf_alloc (&lock_file, "%s/%s/lock", args->offline_root, OPKG_STATE_DIR_PREFIX);
 151      else
 152        sprintf_alloc (&lock_file, "%s/lock", OPKG_STATE_DIR_PREFIX);
 153
 154      conf->lock_fd = creat (lock_file, S_IRUSR | S_IWUSR | S_IRGRP);
 155      err = lockf (conf->lock_fd, F_TLOCK, 0);
 156      errno_copy = errno;
 157
 158      free (lock_file);
 159
 160      if (err)
 161      {
 162        if(args->offline_root) {
 163          opkg_message (conf, OPKG_ERROR, "Could not obtain administrative lock for offline root (ERR: %s)  at %s/%s/lock\n",
 164                  strerror(errno_copy), args->offline_root, OPKG_STATE_DIR_PREFIX);
 165        } else {
 166          opkg_message (conf, OPKG_ERROR, "Could not obtain administrative lock (ERR: %s) at %s/lock\n",
 167                  strerror(errno_copy), OPKG_STATE_DIR_PREFIX);
 168        }
 169        return OPKG_CONF_ERR_LOCK;
 170      }
 171
 172      if (args->tmp_dir)
 173           tmp_dir_base = args->tmp_dir;
 174      else
 175           tmp_dir_base = getenv("TMPDIR");
 176      sprintf_alloc(&conf->tmp_dir, "%s/%s",
 177                    tmp_dir_base ? tmp_dir_base : OPKG_CONF_DEFAULT_TMP_DIR_BASE,
 178                    OPKG_CONF_TMP_DIR_SUFFIX);
 179      conf->tmp_dir = mkdtemp(conf->tmp_dir);
 180      if (conf->tmp_dir == NULL) {
 181           fprintf(stderr, "%s: Failed to create temporary directory `%s': %s\n",
 182                   __FUNCTION__, conf->tmp_dir, strerror(errno));
 183           return OPKG_CONF_ERR_TMP_DIR;
 184      }
 185
 186      pkg_hash_init("pkg-hash", &conf->pkg_hash, OPKG_CONF_DEFAULT_HASH_LEN);
 187      hash_table_init("file-hash", &conf->file_hash, OPKG_CONF_DEFAULT_HASH_LEN);
 188      hash_table_init("obs-file-hash", &conf->obs_file_hash, OPKG_CONF_DEFAULT_HASH_LEN);
 189      lists_dir=(char *)malloc(1);
 190      lists_dir[0]='\0';
 191      if (args->conf_file) {
 192           struct stat stat_buf;
 193           err = stat(args->conf_file, &stat_buf);
 194           if (err == 0)
 195                if (opkg_conf_parse_file(conf, args->conf_file,
 196                                     &conf->pkg_src_list, &tmp_dest_nv_pair_list,&lists_dir)<0) {
 197                    /* Memory leakage from opkg_conf_parse-file */
 198                    return OPKG_CONF_ERR_PARSE;
 199                }
 200      }
 201
 202      if (strlen(lists_dir)<=1 ){
 203         lists_dir = realloc(lists_dir,strlen(OPKG_CONF_LISTS_DIR)+2);
 204         sprintf (lists_dir,"%s",OPKG_CONF_LISTS_DIR);
 205      }
 206
 207      if (args->offline_root) {
 208             char *tmp;
 209             sprintf_alloc(&tmp, "%s/%s",args->offline_root,lists_dir);
 210             free(lists_dir);
 211             lists_dir = tmp;
 212      }
 213
 214      pending_dir = calloc(1, strlen(lists_dir)+strlen("/pending")+5);
 215      snprintf(pending_dir,strlen(lists_dir)+strlen("/pending") ,"%s%s",lists_dir,"/pending");
 216
 217      conf->lists_dir = xstrdup(lists_dir);
 218      conf->pending_dir = xstrdup(pending_dir);
 219
 220      if (args->offline_root)
 221           sprintf_alloc(&etc_opkg_conf_pattern, "%s/etc/opkg/*.conf", args->offline_root);
 222      else
 223           sprintf_alloc(&etc_opkg_conf_pattern, "%s/*.conf", conf_file_dir);
 224      memset(&globbuf, 0, sizeof(globbuf));
 225      err = glob(etc_opkg_conf_pattern, 0, NULL, &globbuf);
 226      free (etc_opkg_conf_pattern);
 227      if (!err) {
 228           int i;
 229           for (i = 0; i < globbuf.gl_pathc; i++) {
 230                if (globbuf.gl_pathv[i])
 231                     if ( opkg_conf_parse_file(conf, globbuf.gl_pathv[i],
 232                                          &conf->pkg_src_list, &tmp_dest_nv_pair_list,&lists_dir)<0) {
 233                         /* Memory leakage from opkg_conf_parse-file */
 234                         return OPKG_CONF_ERR_PARSE;
 235                     }
 236           }
 237      }
 238      globfree(&globbuf);
 239
 240      /* if no architectures were defined, then default all, noarch, and host architecture */
 241      if (nv_pair_list_empty(&conf->arch_list)) {
 242           nv_pair_list_append(&conf->arch_list, "all", "1");
 243           nv_pair_list_append(&conf->arch_list, "noarch", "1");
 244           nv_pair_list_append(&conf->arch_list, HOST_CPU_STR, "10");
 245      }
 246
 247      /* Even if there is no conf file, we'll need at least one dest. */
 248      if (nv_pair_list_empty(&tmp_dest_nv_pair_list)) {
 249           nv_pair_list_append(&tmp_dest_nv_pair_list,
 250                               OPKG_CONF_DEFAULT_DEST_NAME,
 251                               OPKG_CONF_DEFAULT_DEST_ROOT_DIR);
 252      }
 253
 254      /* After parsing the file, set options from command-line, (so that
 255         command-line arguments take precedence) */
 256      /* XXX: CLEANUP: The interaction between args.c and opkg_conf.c
 257         really needs to be cleaned up. There is so much duplication
 258         right now it is ridiculous. Maybe opkg_conf_t should just save
 259         a pointer to args_t (which could then not be freed), rather
 260         than duplicating every field here? */
 261      if (args->autoremove) {
 262           conf->autoremove = 1;
 263      }
 264      if (args->force_depends) {
 265           conf->force_depends = 1;
 266      }
 267      if (args->force_defaults) {
 268           conf->force_defaults = 1;
 269      }
 270      if (args->force_maintainer) {
 271           conf->force_maintainer = 1;
 272      }
 273      if (args->force_overwrite) {
 274           conf->force_overwrite = 1;
 275      }
 276      if (args->force_downgrade) {
 277           conf->force_downgrade = 1;
 278      }
 279      if (args->force_space) {
 280           conf->force_space = 1;
 281      }
 282      if (args->force_reinstall) {
 283           conf->force_reinstall = 1;
 284      }
 285      if (args->force_removal_of_dependent_packages) {
 286           conf->force_removal_of_dependent_packages = 1;
 287      }
 288      if (args->force_removal_of_essential_packages) {
 289           conf->force_removal_of_essential_packages = 1;
 290      }
 291      if (args->nodeps) {
 292           conf->nodeps = 1;
 293      }
 294      if (args->noaction) {
 295           conf->noaction = 1;
 296      }
 297      if (args->query_all) {
 298           conf->query_all = 1;
 299      }
 300      if (args->verbosity != conf->verbosity) {
 301           conf->verbosity = args->verbosity;
 302      }
 303
 304      opkg_conf_override_string(&conf->offline_root,
 305                                args->offline_root);
 306      opkg_conf_override_string(&conf->offline_root_path,
 307                                args->offline_root_path);
 308      opkg_conf_override_string(&conf->offline_root_pre_script_cmd,
 309                                args->offline_root_pre_script_cmd);
 310      opkg_conf_override_string(&conf->offline_root_post_script_cmd,
 311                                args->offline_root_post_script_cmd);
 312
 313      opkg_conf_override_string(&conf->cache, args->cache);
 314
 315 /* Pigi: added a flag to disable the checking of structures if the command does not need to
 316          read anything from there.
 317 */
 318      if ( !(args->nocheckfordirorfile)){
 319         /* need to run load the source list before dest list -Jamey */
 320         if ( !(args->noreadfeedsfile))
 321            set_and_load_pkg_src_list(conf, &conf->pkg_src_list);
 322
 323         /* Now that we have resolved conf->offline_root, we can commit to
 324            the directory names for the dests and load in all the package
 325            lists. */
 326         set_and_load_pkg_dest_list(conf, &tmp_dest_nv_pair_list,lists_dir);
 327
 328         if (args->dest) {
 329              err = opkg_conf_set_default_dest(conf, args->dest);
 330              if (err) {
 331                   return OPKG_CONF_ERR_DEFAULT_DEST;
 332              }
 333         }
 334      }
 335      nv_pair_list_deinit(&tmp_dest_nv_pair_list);
 336      free(lists_dir);
 337      free(pending_dir);
 338
 339      return 0;
 340 }
 341
 342 void opkg_conf_deinit(opkg_conf_t *conf)
 343 {
 344 #ifdef OPKG_DEBUG_NO_TMP_CLEANUP
 345 #error
 346      fprintf(stderr, "%s: Not cleaning up %s since opkg compiled "
 347              "with OPKG_DEBUG_NO_TMP_CLEANUP\n",
 348              __FUNCTION__, conf->tmp_dir);
 349 #else
 350      int err;
 351
 352      err = rmdir(conf->tmp_dir);
 353      if (err) {
 354           if (errno == ENOTEMPTY) {
 355                char *cmd;
 356                sprintf_alloc(&cmd, "rm -fr %s\n", conf->tmp_dir);
 357                err = xsystem(cmd);
 358                free(cmd);
 359           }
 360           if (err)
 361                fprintf(stderr, "WARNING: Unable to remove temporary directory: %s: %s\n", conf->tmp_dir, strerror(errno));
 362      }
 363 #endif /* OPKG_DEBUG_NO_TMP_CLEANUP */
 364
 365      free(conf->tmp_dir); /*XXX*/
 366      free(conf->lists_dir);
 367      free(conf->pending_dir);
 368
 369      pkg_src_list_deinit(&conf->pkg_src_list);
 370      pkg_dest_list_deinit(&conf->pkg_dest_list);
 371      nv_pair_list_deinit(&conf->arch_list);
 372      if (&conf->pkg_hash)
 373                     pkg_hash_deinit(&conf->pkg_hash);
 374      if (&conf->file_hash)
 375                     hash_table_deinit(&conf->file_hash);
 376      if (&conf->obs_file_hash)
 377                     hash_table_deinit(&conf->obs_file_hash);
 378
 379      opkg_conf_free_string(&conf->offline_root);
 380      opkg_conf_free_string(&conf->offline_root_path);
 381      opkg_conf_free_string(&conf->offline_root_pre_script_cmd);
 382      opkg_conf_free_string(&conf->offline_root_post_script_cmd);
 383
 384      opkg_conf_free_string(&conf->cache);
 385
 386 #if defined(HAVE_OPENSSL)
 387      opkg_conf_free_string(&conf->signature_ca_file);
 388      opkg_conf_free_string(&conf->signature_ca_path);
 389 #endif
 390
 391 #if defined(HAVE_SSLCURL)
 392      opkg_conf_free_string(&conf->ssl_engine);
 393      opkg_conf_free_string(&conf->ssl_cert);
 394      opkg_conf_free_string(&conf->ssl_cert_type);
 395      opkg_conf_free_string(&conf->ssl_key);
 396      opkg_conf_free_string(&conf->ssl_key_type);
 397      opkg_conf_free_string(&conf->ssl_key_passwd);
 398      opkg_conf_free_string(&conf->ssl_ca_file);
 399      opkg_conf_free_string(&conf->ssl_ca_path);
 400 #endif
 401
 402      if (conf->verbosity > 1) {
 403           int i;
 404           hash_table_t *hashes[] = {
 405                &conf->pkg_hash,
 406                &conf->file_hash,
 407                &conf->obs_file_hash };
 408           for (i = 0; i < 3; i++) {
 409                hash_table_t *hash = hashes[i];
 410                int c = 0;
 411                int n_conflicts = 0;
 412                int j;
 413                for (j = 0; j < hash->n_entries; j++) {
 414                     int len = 0;
 415                     hash_entry_t *e = &hash->entries[j];
 416                     if (e->next)
 417                          n_conflicts++;
 418                     while (e && e->key) {
 419                          len++;
 420                          e = e->next;
 421                     }
 422                     if (len > c)
 423                          c = len;
 424                }
 425                opkg_message(conf, OPKG_DEBUG, "hash_table[%s] n_buckets=%d n_elements=%d max_conflicts=%d n_conflicts=%d\n",
 426                             hash->name, hash->n_entries, hash->n_elements, c, n_conflicts);
 427                hash_table_deinit(hash);
 428           }
 429      }
 430 }
 431
 432 static int opkg_conf_set_default_dest(opkg_conf_t *conf,
 433                                       const char *default_dest_name)
 434 {
 435      pkg_dest_list_elt_t *iter;
 436      pkg_dest_t *dest;
 437
 438      for (iter = void_list_first(&conf->pkg_dest_list); iter; iter = void_list_next(&conf->pkg_dest_list, iter)) {
 439           dest = (pkg_dest_t *)iter->data;
 440           if (strcmp(dest->name, default_dest_name) == 0) {
 441                conf->default_dest = dest;
 442                conf->restrict_to_default_dest = 1;
 443                return 0;
 444           }
 445      }
 446
 447      fprintf(stderr, "ERROR: Unknown dest name: `%s'\n", default_dest_name);
 448
 449      return 1;
 450 }
 451
 452 static int set_and_load_pkg_src_list(opkg_conf_t *conf, pkg_src_list_t *pkg_src_list)
 453 {
 454      pkg_src_list_elt_t *iter;
 455      pkg_src_t *src;
 456      char *list_file;
 457
 458      for (iter = void_list_first(pkg_src_list); iter; iter = void_list_next(pkg_src_list, iter)) {
 459           src = (pkg_src_t *)iter->data;
 460           if (src == NULL) {
 461                continue;
 462           }
 463
 464           sprintf_alloc(&list_file, "%s/%s",
 465                           conf->restrict_to_default_dest ? conf->default_dest->lists_dir : conf->lists_dir,
 466                           src->name);
 467
 468           if (file_exists(list_file)) {
 469                pkg_hash_add_from_file(conf, list_file, src, NULL, 0);
 470           }
 471           free(list_file);
 472      }
 473
 474      return 0;
 475 }
 476
 477 static int set_and_load_pkg_dest_list(opkg_conf_t *conf, nv_pair_list_t *nv_pair_list, char *lists_dir )
 478 {
 479      nv_pair_list_elt_t *iter;
 480      nv_pair_t *nv_pair;
 481      pkg_dest_t *dest;
 482      char *root_dir;
 483
 484      for (iter = nv_pair_list_first(nv_pair_list); iter; iter = nv_pair_list_next(nv_pair_list, iter)) {
 485           nv_pair = (nv_pair_t *)iter->data;
 486
 487           if (conf->offline_root) {
 488                sprintf_alloc(&root_dir, "%s%s", conf->offline_root, nv_pair->value);
 489           } else {
 490                root_dir = xstrdup(nv_pair->value);
 491           }
 492           dest = pkg_dest_list_append(&conf->pkg_dest_list, nv_pair->name, root_dir, lists_dir);
 493           free(root_dir);
 494           if (dest == NULL) {
 495                continue;
 496           }
 497           if (conf->default_dest == NULL) {
 498                conf->default_dest = dest;
 499           }
 500           if (file_exists(dest->status_file_name)) {
 501                pkg_hash_add_from_file(conf, dest->status_file_name,
 502                                       NULL, dest, 1);
 503           }
 504      }
 505
 506      return 0;
 507 }
 508
 509 static int opkg_conf_parse_file(opkg_conf_t *conf, const char *filename,
 510                                 pkg_src_list_t *pkg_src_list,
 511                                 nv_pair_list_t *tmp_dest_nv_pair_list,
 512                                 char **lists_dir)
 513 {
 514      int err;
 515      opkg_option_t * options;
 516      FILE *file = fopen(filename, "r");
 517      regex_t valid_line_re, comment_re;
 518 #define regmatch_size 12
 519      regmatch_t regmatch[regmatch_size];
 520
 521      if (opkg_init_options_array(conf, &options)<0)
 522         return ENOMEM;
 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 = strndup(line + regmatch[2].rm_so,
 572                               regmatch[2].rm_eo - regmatch[2].rm_so);
 573           } else {
 574                type = strndup(line + regmatch[3].rm_so,
 575                               regmatch[3].rm_eo - regmatch[3].rm_so);
 576           }
 577           if (regmatch[5].rm_so > 0) {
 578                name = strndup(line + regmatch[5].rm_so,
 579                               regmatch[5].rm_eo - regmatch[5].rm_so);
 580           } else {
 581                name = strndup(line + regmatch[6].rm_so,
 582                               regmatch[6].rm_eo - regmatch[6].rm_so);
 583           }
 584           if (regmatch[8].rm_so > 0) {
 585                value = strndup(line + regmatch[8].rm_so,
 586                                regmatch[8].rm_eo - regmatch[8].rm_so);
 587           } else {
 588                value = strndup(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 = strndup (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 = realloc(*lists_dir,strlen(value)+1);
 623                if (*lists_dir == NULL) {
 624                     opkg_message(conf, OPKG_ERROR, "ERROR: Not enough memory\n");
 625                     free(options);
 626                     return EINVAL;
 627                }
 628                sprintf (*lists_dir,"%s",value);
 629           } else if (strcmp(type, "arch") == 0) {
 630                opkg_message(conf, OPKG_INFO, "supported arch %s priority (%s)\n", name, value);
 631                if (!value) {
 632                     opkg_message(conf, OPKG_NOTICE, "defaulting architecture %s priority to 10\n", name);
 633                     value = xstrdup("10");
 634                }
 635                nv_pair_list_append(&conf->arch_list, name, value);
 636           } else {
 637                fprintf(stderr, "WARNING: Ignoring unknown configuration "
 638                        "parameter: %s %s %s\n", type, name, value);
 639                free(options);
 640                return EINVAL;
 641           }
 642
 643           free(type);
 644           free(name);
 645           free(value);
 646           if (extra)
 647                free (extra);
 648
 649      NEXT_LINE:
 650           free(line);
 651      }
 652
 653      free(options);
 654      regfree(&comment_re);
 655      regfree(&valid_line_re);
 656      fclose(file);
 657
 658      return 0;
 659 }
 660
 661 static int opkg_conf_set_option(const opkg_option_t *options,
 662                                 const char *name, const char *value)
 663 {
 664      int i = 0;
 665      while (options[i].name) {
 666           if (strcmp(options[i].name, name) == 0) {
 667                switch (options[i].type) {
 668                case OPKG_OPT_TYPE_BOOL:
 669                     *((int *)options[i].value) = 1;
 670                     return 0;
 671                case OPKG_OPT_TYPE_INT:
 672                     if (value) {
 673                          *((int *)options[i].value) = atoi(value);
 674                          return 0;
 675                     } else {
 676                          printf("%s: Option %s need an argument\n",
 677                                 __FUNCTION__, name);
 678                          return EINVAL;
 679                     }
 680                case OPKG_OPT_TYPE_STRING:
 681                     if (value) {
 682                          *((char **)options[i].value) = xstrdup(value);
 683                          return 0;
 684                     } else {
 685                          printf("%s: Option %s need an argument\n",
 686                                 __FUNCTION__, name);
 687                          return EINVAL;
 688                     }
 689                }
 690           }
 691           i++;
 692      }
 693
 694      fprintf(stderr, "%s: Unrecognized option: %s=%s\n",
 695              __FUNCTION__, name, value);
 696      return EINVAL;
 697 }
 698
 699 int opkg_conf_write_status_files(opkg_conf_t *conf)
 700 {
 701      pkg_dest_t *dest;
 702      pkg_vec_t *all;
 703      pkg_t *pkg;
 704      int i;
 705      int err;
 706      FILE * status_file=NULL;
 707
 708      if (conf->noaction)
 709           return 0;
 710
 711      dest = (pkg_dest_t *)void_list_first(&conf->pkg_dest_list)->data;
 712      status_file = fopen(dest->status_file_tmp_name, "w");
 713      if (status_file == NULL) {
 714          fprintf(stderr, "%s: Can't open status file: %s for writing: %s\n",
 715                  __FUNCTION__, dest->status_file_tmp_name, strerror(errno));
 716      }
 717
 718      all = pkg_vec_alloc();
 719      pkg_hash_fetch_available(&conf->pkg_hash, all);
 720
 721      for(i = 0; i < all->len; i++) {
 722           pkg = all->pkgs[i];
 723           /* We don't need most uninstalled packages in the status file */
 724           if (pkg->state_status == SS_NOT_INSTALLED
 725               && (pkg->state_want == SW_UNKNOWN
 726                   || pkg->state_want == SW_DEINSTALL
 727                   || pkg->state_want == SW_PURGE)) {
 728                continue;
 729           }
 730           if (pkg->dest == NULL) {
 731                fprintf(stderr, "%s: ERROR: Can't write status for "
 732                        "package %s since it has a NULL dest\n",
 733                        __FUNCTION__, pkg->name);
 734                continue;
 735           }
 736           if (status_file) {
 737                pkg_print_status(pkg, status_file);
 738           }
 739      }
 740
 741      pkg_vec_free(all);
 742
 743      if (status_file) {
 744          err = ferror(status_file);
 745          fclose(status_file);
 746          if (!err) {
 747              file_move(dest->status_file_tmp_name, dest->status_file_name);
 748          } else {
 749              fprintf(stderr, "%s: ERROR: An error has occurred writing %s, "
 750                      "retaining old %s\n", __FUNCTION__,
 751                      dest->status_file_tmp_name, dest->status_file_name);
 752          }
 753          status_file = NULL;
 754      }
 755      return 0;
 756 }
 757
 758
 759 char *root_filename_alloc(opkg_conf_t *conf, char *filename)
 760 {
 761      char *root_filename;
 762      sprintf_alloc(&root_filename, "%s%s", (conf->offline_root ? conf->offline_root : ""), filename);
 763      return root_filename;
 764 }