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 = xcalloc(1, sizeof(tmp));
  98      memcpy(*options, tmp, sizeof(tmp));
  99      return 0;
 100 };
 101
 102 static void opkg_conf_override_string(char **conf_str, char *arg_str)
 103 {
 104      if (arg_str) {
 105           if (*conf_str) {
 106                free(*conf_str);
 107           }
 108           *conf_str = xstrdup(arg_str);
 109      }
 110 }
 111
 112 static void opkg_conf_free_string(char **conf_str)
 113 {
 114      if (*conf_str) {
 115           free(*conf_str);
 116           *conf_str = NULL;
 117      }
 118 }
 119
 120 int opkg_conf_init(opkg_conf_t *conf, const args_t *args)
 121 {
 122      int err;
 123      int errno_copy;
 124      char *tmp_dir_base;
 125      nv_pair_list_t tmp_dest_nv_pair_list;
 126      char *lists_dir = NULL, *lock_file = NULL;
 127      glob_t globbuf;
 128      char *etc_opkg_conf_pattern;
 129      char *pending_dir = NULL;
 130
 131      memset(conf, 0, sizeof(opkg_conf_t));
 132
 133      pkg_src_list_init(&conf->pkg_src_list);
 134
 135      nv_pair_list_init(&tmp_dest_nv_pair_list);
 136      pkg_dest_list_init(&conf->pkg_dest_list);
 137
 138      nv_pair_list_init(&conf->arch_list);
 139
 140      conf->restrict_to_default_dest = 0;
 141      conf->default_dest = NULL;
 142
 143      /* check for lock file */
 144      if (args->offline_root)
 145        sprintf_alloc (&lock_file, "%s/%s/lock", args->offline_root, OPKG_STATE_DIR_PREFIX);
 146      else
 147        sprintf_alloc (&lock_file, "%s/lock", OPKG_STATE_DIR_PREFIX);
 148
 149      conf->lock_fd = creat (lock_file, S_IRUSR | S_IWUSR | S_IRGRP);
 150      err = lockf (conf->lock_fd, F_TLOCK, 0);
 151      errno_copy = errno;
 152
 153      free (lock_file);
 154
 155      if (err)
 156      {
 157        if(args->offline_root) {
 158          opkg_message (conf, OPKG_ERROR, "Could not obtain administrative lock for offline root (ERR: %s)  at %s/%s/lock\n",
 159                  strerror(errno_copy), args->offline_root, OPKG_STATE_DIR_PREFIX);
 160        } else {
 161          opkg_message (conf, OPKG_ERROR, "Could not obtain administrative lock (ERR: %s) at %s/lock\n",
 162                  strerror(errno_copy), OPKG_STATE_DIR_PREFIX);
 163        }
 164        return OPKG_CONF_ERR_LOCK;
 165      }
 166
 167      if (args->tmp_dir)
 168           tmp_dir_base = args->tmp_dir;
 169      else
 170           tmp_dir_base = getenv("TMPDIR");
 171      sprintf_alloc(&conf->tmp_dir, "%s/%s",
 172                    tmp_dir_base ? tmp_dir_base : OPKG_CONF_DEFAULT_TMP_DIR_BASE,
 173                    OPKG_CONF_TMP_DIR_SUFFIX);
 174      conf->tmp_dir = mkdtemp(conf->tmp_dir);
 175      if (conf->tmp_dir == NULL) {
 176           fprintf(stderr, "%s: Failed to create temporary directory `%s': %s\n",
 177                   __FUNCTION__, conf->tmp_dir, strerror(errno));
 178           return OPKG_CONF_ERR_TMP_DIR;
 179      }
 180
 181      pkg_hash_init("pkg-hash", &conf->pkg_hash, OPKG_CONF_DEFAULT_HASH_LEN);
 182      hash_table_init("file-hash", &conf->file_hash, OPKG_CONF_DEFAULT_HASH_LEN);
 183      hash_table_init("obs-file-hash", &conf->obs_file_hash, OPKG_CONF_DEFAULT_HASH_LEN);
 184      lists_dir=xmalloc(1);
 185      lists_dir[0]='\0';
 186      if (args->conf_file) {
 187           struct stat stat_buf;
 188           err = stat(args->conf_file, &stat_buf);
 189           if (err == 0)
 190                if (opkg_conf_parse_file(conf, args->conf_file,
 191                                     &conf->pkg_src_list, &tmp_dest_nv_pair_list,&lists_dir)<0) {
 192                    /* Memory leakage from opkg_conf_parse-file */
 193                    return OPKG_CONF_ERR_PARSE;
 194                }
 195      }
 196
 197      if (strlen(lists_dir)<=1 ){
 198         lists_dir = xrealloc(lists_dir,strlen(OPKG_CONF_LISTS_DIR)+2);
 199         sprintf (lists_dir,"%s",OPKG_CONF_LISTS_DIR);
 200      }
 201
 202      if (args->offline_root) {
 203             char *tmp;
 204             sprintf_alloc(&tmp, "%s/%s",args->offline_root,lists_dir);
 205             free(lists_dir);
 206             lists_dir = tmp;
 207      }
 208
 209      pending_dir = xcalloc(1, strlen(lists_dir)+strlen("/pending")+5);
 210      snprintf(pending_dir,strlen(lists_dir)+strlen("/pending") ,"%s%s",lists_dir,"/pending");
 211
 212      conf->lists_dir = xstrdup(lists_dir);
 213      conf->pending_dir = xstrdup(pending_dir);
 214
 215      if (args->offline_root)
 216           sprintf_alloc(&etc_opkg_conf_pattern, "%s/etc/opkg/*.conf", args->offline_root);
 217      else
 218           sprintf_alloc(&etc_opkg_conf_pattern, "%s/*.conf", conf_file_dir);
 219      memset(&globbuf, 0, sizeof(globbuf));
 220      err = glob(etc_opkg_conf_pattern, 0, NULL, &globbuf);
 221      free (etc_opkg_conf_pattern);
 222      if (!err) {
 223           int i;
 224           for (i = 0; i < globbuf.gl_pathc; i++) {
 225                if (globbuf.gl_pathv[i])
 226                     if ( opkg_conf_parse_file(conf, globbuf.gl_pathv[i],
 227                                          &conf->pkg_src_list, &tmp_dest_nv_pair_list,&lists_dir)<0) {
 228                         /* Memory leakage from opkg_conf_parse-file */
 229                         return OPKG_CONF_ERR_PARSE;
 230                     }
 231           }
 232      }
 233      globfree(&globbuf);
 234
 235      /* if no architectures were defined, then default all, noarch, and host architecture */
 236      if (nv_pair_list_empty(&conf->arch_list)) {
 237           nv_pair_list_append(&conf->arch_list, "all", "1");
 238           nv_pair_list_append(&conf->arch_list, "noarch", "1");
 239           nv_pair_list_append(&conf->arch_list, HOST_CPU_STR, "10");
 240      }
 241
 242      /* Even if there is no conf file, we'll need at least one dest. */
 243      if (nv_pair_list_empty(&tmp_dest_nv_pair_list)) {
 244           nv_pair_list_append(&tmp_dest_nv_pair_list,
 245                               OPKG_CONF_DEFAULT_DEST_NAME,
 246                               OPKG_CONF_DEFAULT_DEST_ROOT_DIR);
 247      }
 248
 249      /* After parsing the file, set options from command-line, (so that
 250         command-line arguments take precedence) */
 251      /* XXX: CLEANUP: The interaction between args.c and opkg_conf.c
 252         really needs to be cleaned up. There is so much duplication
 253         right now it is ridiculous. Maybe opkg_conf_t should just save
 254         a pointer to args_t (which could then not be freed), rather
 255         than duplicating every field here? */
 256      if (args->autoremove) {
 257           conf->autoremove = 1;
 258      }
 259      if (args->force_depends) {
 260           conf->force_depends = 1;
 261      }
 262      if (args->force_defaults) {
 263           conf->force_defaults = 1;
 264      }
 265      if (args->force_maintainer) {
 266           conf->force_maintainer = 1;
 267      }
 268      if (args->force_overwrite) {
 269           conf->force_overwrite = 1;
 270      }
 271      if (args->force_downgrade) {
 272           conf->force_downgrade = 1;
 273      }
 274      if (args->force_space) {
 275           conf->force_space = 1;
 276      }
 277      if (args->force_reinstall) {
 278           conf->force_reinstall = 1;
 279      }
 280      if (args->force_removal_of_dependent_packages) {
 281           conf->force_removal_of_dependent_packages = 1;
 282      }
 283      if (args->force_removal_of_essential_packages) {
 284           conf->force_removal_of_essential_packages = 1;
 285      }
 286      if (args->nodeps) {
 287           conf->nodeps = 1;
 288      }
 289      if (args->noaction) {
 290           conf->noaction = 1;
 291      }
 292      if (args->query_all) {
 293           conf->query_all = 1;
 294      }
 295      if (args->verbosity != conf->verbosity) {
 296           conf->verbosity = args->verbosity;
 297      }
 298
 299      opkg_conf_override_string(&conf->offline_root,
 300                                args->offline_root);
 301      opkg_conf_override_string(&conf->offline_root_path,
 302                                args->offline_root_path);
 303      opkg_conf_override_string(&conf->offline_root_pre_script_cmd,
 304                                args->offline_root_pre_script_cmd);
 305      opkg_conf_override_string(&conf->offline_root_post_script_cmd,
 306                                args->offline_root_post_script_cmd);
 307
 308      opkg_conf_override_string(&conf->cache, args->cache);
 309
 310 /* Pigi: added a flag to disable the checking of structures if the command does not need to
 311          read anything from there.
 312 */
 313      if ( !(args->nocheckfordirorfile)){
 314         /* need to run load the source list before dest list -Jamey */
 315         if ( !(args->noreadfeedsfile))
 316            set_and_load_pkg_src_list(conf, &conf->pkg_src_list);
 317
 318         /* Now that we have resolved conf->offline_root, we can commit to
 319            the directory names for the dests and load in all the package
 320            lists. */
 321         set_and_load_pkg_dest_list(conf, &tmp_dest_nv_pair_list,lists_dir);
 322
 323         if (args->dest) {
 324              err = opkg_conf_set_default_dest(conf, args->dest);
 325              if (err) {
 326                   return OPKG_CONF_ERR_DEFAULT_DEST;
 327              }
 328         }
 329      }
 330      nv_pair_list_deinit(&tmp_dest_nv_pair_list);
 331      free(lists_dir);
 332      free(pending_dir);
 333
 334      return 0;
 335 }
 336
 337 void opkg_conf_deinit(opkg_conf_t *conf)
 338 {
 339 #ifdef OPKG_DEBUG_NO_TMP_CLEANUP
 340 #error
 341      fprintf(stderr, "%s: Not cleaning up %s since opkg compiled "
 342              "with OPKG_DEBUG_NO_TMP_CLEANUP\n",
 343              __FUNCTION__, conf->tmp_dir);
 344 #else
 345      int err;
 346
 347      err = rmdir(conf->tmp_dir);
 348      if (err) {
 349           if (errno == ENOTEMPTY) {
 350                char *cmd;
 351                sprintf_alloc(&cmd, "rm -fr %s\n", conf->tmp_dir);
 352                err = xsystem(cmd);
 353                free(cmd);
 354           }
 355           if (err)
 356                fprintf(stderr, "WARNING: Unable to remove temporary directory: %s: %s\n", conf->tmp_dir, strerror(errno));
 357      }
 358 #endif /* OPKG_DEBUG_NO_TMP_CLEANUP */
 359
 360      free(conf->tmp_dir); /*XXX*/
 361      free(conf->lists_dir);
 362      free(conf->pending_dir);
 363
 364      pkg_src_list_deinit(&conf->pkg_src_list);
 365      pkg_dest_list_deinit(&conf->pkg_dest_list);
 366      nv_pair_list_deinit(&conf->arch_list);
 367      if (&conf->pkg_hash)
 368                     pkg_hash_deinit(&conf->pkg_hash);
 369      if (&conf->file_hash)
 370                     hash_table_deinit(&conf->file_hash);
 371      if (&conf->obs_file_hash)
 372                     hash_table_deinit(&conf->obs_file_hash);
 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                hash_table_deinit(hash);
 423           }
 424      }
 425 }
 426
 427 static int opkg_conf_set_default_dest(opkg_conf_t *conf,
 428                                       const char *default_dest_name)
 429 {
 430      pkg_dest_list_elt_t *iter;
 431      pkg_dest_t *dest;
 432
 433      for (iter = void_list_first(&conf->pkg_dest_list); iter; iter = void_list_next(&conf->pkg_dest_list, iter)) {
 434           dest = (pkg_dest_t *)iter->data;
 435           if (strcmp(dest->name, default_dest_name) == 0) {
 436                conf->default_dest = dest;
 437                conf->restrict_to_default_dest = 1;
 438                return 0;
 439           }
 440      }
 441
 442      fprintf(stderr, "ERROR: Unknown dest name: `%s'\n", default_dest_name);
 443
 444      return 1;
 445 }
 446
 447 static int set_and_load_pkg_src_list(opkg_conf_t *conf, pkg_src_list_t *pkg_src_list)
 448 {
 449      pkg_src_list_elt_t *iter;
 450      pkg_src_t *src;
 451      char *list_file;
 452
 453      for (iter = void_list_first(pkg_src_list); iter; iter = void_list_next(pkg_src_list, iter)) {
 454           src = (pkg_src_t *)iter->data;
 455           if (src == NULL) {
 456                continue;
 457           }
 458
 459           sprintf_alloc(&list_file, "%s/%s",
 460                           conf->restrict_to_default_dest ? conf->default_dest->lists_dir : conf->lists_dir,
 461                           src->name);
 462
 463           if (file_exists(list_file)) {
 464                pkg_hash_add_from_file(conf, list_file, src, NULL, 0);
 465           }
 466           free(list_file);
 467      }
 468
 469      return 0;
 470 }
 471
 472 static int set_and_load_pkg_dest_list(opkg_conf_t *conf, nv_pair_list_t *nv_pair_list, char *lists_dir )
 473 {
 474      nv_pair_list_elt_t *iter;
 475      nv_pair_t *nv_pair;
 476      pkg_dest_t *dest;
 477      char *root_dir;
 478
 479      for (iter = nv_pair_list_first(nv_pair_list); iter; iter = nv_pair_list_next(nv_pair_list, iter)) {
 480           nv_pair = (nv_pair_t *)iter->data;
 481
 482           if (conf->offline_root) {
 483                sprintf_alloc(&root_dir, "%s%s", conf->offline_root, nv_pair->value);
 484           } else {
 485                root_dir = xstrdup(nv_pair->value);
 486           }
 487           dest = pkg_dest_list_append(&conf->pkg_dest_list, nv_pair->name, root_dir, lists_dir);
 488           free(root_dir);
 489           if (dest == NULL) {
 490                continue;
 491           }
 492           if (conf->default_dest == NULL) {
 493                conf->default_dest = dest;
 494           }
 495           if (file_exists(dest->status_file_name)) {
 496                pkg_hash_add_from_file(conf, dest->status_file_name,
 497                                       NULL, dest, 1);
 498           }
 499      }
 500
 501      return 0;
 502 }
 503
 504 static int opkg_conf_parse_file(opkg_conf_t *conf, const char *filename,
 505                                 pkg_src_list_t *pkg_src_list,
 506                                 nv_pair_list_t *tmp_dest_nv_pair_list,
 507                                 char **lists_dir)
 508 {
 509      int err;
 510      opkg_option_t * options;
 511      FILE *file = fopen(filename, "r");
 512      regex_t valid_line_re, comment_re;
 513 #define regmatch_size 12
 514      regmatch_t regmatch[regmatch_size];
 515
 516      if (opkg_init_options_array(conf, &options)<0)
 517         return ENOMEM;
 518
 519      if (file == NULL) {
 520           fprintf(stderr, "%s: failed to open %s: %s\n",
 521                   __FUNCTION__, filename, strerror(errno));
 522           free(options);
 523           return errno;
 524      }
 525      opkg_message(conf, OPKG_NOTICE, "loading conf file %s\n", filename);
 526
 527      err = xregcomp(&comment_re,
 528                     "^[[:space:]]*(#.*|[[:space:]]*)$",
 529                     REG_EXTENDED);
 530      if (err) {
 531           free(options);
 532           return err;
 533      }
 534      err = xregcomp(&valid_line_re, "^[[:space:]]*(\"([^\"]*)\"|([^[:space:]]*))[[:space:]]*(\"([^\"]*)\"|([^[:space:]]*))[[:space:]]*(\"([^\"]*)\"|([^[:space:]]*))([[:space:]]+([^[:space:]]+))?[[:space:]]*$", REG_EXTENDED);
 535      if (err) {
 536           free(options);
 537           return err;
 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                *lists_dir = xrealloc(*lists_dir,strlen(value)+1);
 618                sprintf (*lists_dir,"%s",value);
 619           } else if (strcmp(type, "arch") == 0) {
 620                opkg_message(conf, OPKG_INFO, "supported arch %s priority (%s)\n", name, value);
 621                if (!value) {
 622                     opkg_message(conf, OPKG_NOTICE, "defaulting architecture %s priority to 10\n", name);
 623                     value = xstrdup("10");
 624                }
 625                nv_pair_list_append(&conf->arch_list, name, value);
 626           } else {
 627                fprintf(stderr, "WARNING: Ignoring unknown configuration "
 628                        "parameter: %s %s %s\n", type, name, value);
 629                free(options);
 630                return EINVAL;
 631           }
 632
 633           free(type);
 634           free(name);
 635           free(value);
 636           if (extra)
 637                free (extra);
 638
 639      NEXT_LINE:
 640           free(line);
 641      }
 642
 643      free(options);
 644      regfree(&comment_re);
 645      regfree(&valid_line_re);
 646      fclose(file);
 647
 648      return 0;
 649 }
 650
 651 static int opkg_conf_set_option(const opkg_option_t *options,
 652                                 const char *name, const char *value)
 653 {
 654      int i = 0;
 655      while (options[i].name) {
 656           if (strcmp(options[i].name, name) == 0) {
 657                switch (options[i].type) {
 658                case OPKG_OPT_TYPE_BOOL:
 659                     *((int *)options[i].value) = 1;
 660                     return 0;
 661                case OPKG_OPT_TYPE_INT:
 662                     if (value) {
 663                          *((int *)options[i].value) = atoi(value);
 664                          return 0;
 665                     } else {
 666                          printf("%s: Option %s need an argument\n",
 667                                 __FUNCTION__, name);
 668                          return EINVAL;
 669                     }
 670                case OPKG_OPT_TYPE_STRING:
 671                     if (value) {
 672                          *((char **)options[i].value) = xstrdup(value);
 673                          return 0;
 674                     } else {
 675                          printf("%s: Option %s need an argument\n",
 676                                 __FUNCTION__, name);
 677                          return EINVAL;
 678                     }
 679                }
 680           }
 681           i++;
 682      }
 683
 684      fprintf(stderr, "%s: Unrecognized option: %s=%s\n",
 685              __FUNCTION__, name, value);
 686      return EINVAL;
 687 }
 688
 689 int opkg_conf_write_status_files(opkg_conf_t *conf)
 690 {
 691      pkg_dest_t *dest;
 692      pkg_vec_t *all;
 693      pkg_t *pkg;
 694      int i;
 695      int err;
 696      FILE * status_file=NULL;
 697
 698      if (conf->noaction)
 699           return 0;
 700
 701      dest = (pkg_dest_t *)void_list_first(&conf->pkg_dest_list)->data;
 702      status_file = fopen(dest->status_file_tmp_name, "w");
 703      if (status_file == NULL) {
 704          fprintf(stderr, "%s: Can't open status file: %s for writing: %s\n",
 705                  __FUNCTION__, dest->status_file_tmp_name, strerror(errno));
 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           if (status_file) {
 727                pkg_print_status(pkg, status_file);
 728           }
 729      }
 730
 731      pkg_vec_free(all);
 732
 733      if (status_file) {
 734          err = ferror(status_file);
 735          fclose(status_file);
 736          if (!err) {
 737              file_move(dest->status_file_tmp_name, dest->status_file_name);
 738          } else {
 739              fprintf(stderr, "%s: ERROR: An error has occurred writing %s, "
 740                      "retaining old %s\n", __FUNCTION__,
 741                      dest->status_file_tmp_name, dest->status_file_name);
 742          }
 743          status_file = NULL;
 744      }
 745      return 0;
 746 }
 747
 748
 749 char *root_filename_alloc(opkg_conf_t *conf, char *filename)
 750 {
 751      char *root_filename;
 752      sprintf_alloc(&root_filename, "%s%s", (conf->offline_root ? conf->offline_root : ""), filename);
 753      return root_filename;
 754 }