mono/metadata/mono-config.c

   1 /*
   2  * mono-config.c
   3  *
   4  * Runtime and assembly configuration file support routines.
   5  *
   6  * Author: Paolo Molaro (lupus@ximian.com)
   7  *
   8  * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
   9  * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
  10  */
  11 #include "config.h"
  12 #include <glib.h>
  13 #include <string.h>
  14
  15 #include "mono/metadata/assembly.h"
  16 #include "mono/metadata/loader.h"
  17 #include "mono/metadata/mono-config.h"
  18 #include "mono/metadata/metadata-internals.h"
  19 #include "mono/metadata/object-internals.h"
  20 #include "mono/utils/mono-logger-internal.h"
  21
  22 #if defined(TARGET_PS3)
  23 #define CONFIG_OS "CellOS"
  24 #elif defined(__linux__)
  25 #define CONFIG_OS "linux"
  26 #elif defined(__APPLE__)
  27 #define CONFIG_OS "osx"
  28 #elif defined(sun)
  29 #define CONFIG_OS "solaris"
  30 #elif defined(__FreeBSD__)
  31 #define CONFIG_OS "freebsd"
  32 #elif defined(__NetBSD__)
  33 #define CONFIG_OS "netbsd"
  34 #elif defined(__OpenBSD__)
  35 #define CONFIG_OS "openbsd"
  36 #elif defined(__WIN32__)
  37 #define CONFIG_OS "windows"
  38 #elif defined(_IBMR2)
  39 #define CONFIG_OS "aix"
  40 #elif defined(__hpux)
  41 #define CONFIG_OS "hpux"
  42 #else
  43 #warning Unknown operating system
  44 #define CONFIG_OS "unknownOS"
  45 #endif
  46
  47 #ifndef CONFIG_CPU
  48 #if defined(__i386__)
  49 #define CONFIG_CPU "x86"
  50 #define CONFIG_WORDSIZE "32"
  51 #elif defined(__x86_64__)
  52 #define CONFIG_CPU "x86-64"
  53 #define CONFIG_WORDSIZE "64"
  54 #elif defined(sparc) || defined(__sparc__)
  55 #define CONFIG_CPU "sparc"
  56 #define CONFIG_WORDSIZE "32"
  57 #elif defined(__ppc64__) || defined(__powerpc64__) || defined(TARGET_POWERPC)
  58 #define CONFIG_WORDSIZE "64"
  59 #ifdef __mono_ppc_ilp32__
  60 #   define CONFIG_CPU "ppc64ilp32"
  61 #else
  62 #   define CONFIG_CPU "ppc64"
  63 #endif
  64 #elif defined(__ppc__) || defined(__powerpc__)
  65 #define CONFIG_CPU "ppc"
  66 #define CONFIG_WORDSIZE "32"
  67 #elif defined(__s390x__)
  68 #define CONFIG_CPU "s390x"
  69 #define CONFIG_WORDSIZE "64"
  70 #elif defined(__s390__)
  71 #define CONFIG_CPU "s390"
  72 #define CONFIG_WORDSIZE "32"
  73 #elif defined(__arm__)
  74 #define CONFIG_CPU "arm"
  75 #define CONFIG_WORDSIZE "32"
  76 #elif defined(__ia64__)
  77 #define CONFIG_CPU "ia64"
  78 #define CONFIG_WORDSIZE "64"
  79 #elif defined(__alpha__)
  80 #define CONFIG_CPU "alpha"
  81 #define CONFIG_WORDSIZE "64"
  82 #elif defined(hppa) || defined(__hppa__)
  83 #define CONFIG_CPU "hppa"
  84 #define CONFIG_WORDSIZE "32"
  85 #elif defined(mips) || defined(__mips) || defined(_mips)
  86 #define CONFIG_CPU "mips"
  87 #define CONFIG_WORDSIZE "32"
  88 #else
  89 #error Unknown CPU
  90 #define CONFIG_CPU "unknownCPU"
  91 #endif
  92 #endif
  93
  94 static void start_element (GMarkupParseContext *context,
  95                            const gchar         *element_name,
  96                            const gchar        **attribute_names,
  97                            const gchar        **attribute_values,
  98                            gpointer             user_data,
  99                            GError             **error);
 100
 101 static void end_element   (GMarkupParseContext *context,
 102                            const gchar         *element_name,
 103                            gpointer             user_data,
 104                            GError             **error);
 105
 106 static void parse_text    (GMarkupParseContext *context,
 107                            const gchar         *text,
 108                            gsize                text_len,
 109                            gpointer             user_data,
 110                            GError             **error);
 111
 112 static void passthrough   (GMarkupParseContext *context,
 113                            const gchar         *text,
 114                            gsize                text_len,
 115                            gpointer             user_data,
 116                            GError             **error);
 117
 118 static void parse_error   (GMarkupParseContext *context,
 119                            GError              *error,
 120                            gpointer             user_data);
 121
 122 static const GMarkupParser
 123 mono_parser = {
 124         start_element,
 125         end_element,
 126         parse_text,
 127         passthrough,
 128         parse_error
 129 };
 130
 131 static GHashTable *config_handlers;
 132
 133 /* when this interface is stable, export it. */
 134 typedef struct MonoParseHandler MonoParseHandler;
 135
 136 struct MonoParseHandler {
 137         const char *element_name;
 138         void*(*init)   (MonoImage *assembly);
 139         void (*start)  (gpointer user_data, const gchar *name,
 140                         const gchar **attributes,
 141                         const gchar **values);
 142         void (*text)   (gpointer user_data, const char *text, gsize test_len);
 143         void (*end)    (gpointer user_data, const char *name);
 144         void (*finish) (gpointer user_data);
 145 };
 146
 147 typedef struct {
 148         MonoAssemblyBindingInfo *info;
 149         void (*info_parsed)(MonoAssemblyBindingInfo *info, void *user_data);
 150         void *user_data;
 151 } ParserUserData;
 152
 153 typedef struct {
 154         MonoParseHandler *current;
 155         void *user_data;
 156         MonoImage *assembly;
 157         int inited;
 158 } ParseState;
 159
 160 static void start_element (GMarkupParseContext *context,
 161                            const gchar         *element_name,
 162                            const gchar        **attribute_names,
 163                            const gchar        **attribute_values,
 164                            gpointer             user_data,
 165                            GError             **error)
 166 {
 167         ParseState *state = user_data;
 168         if (!state->current) {
 169                 state->current = g_hash_table_lookup (config_handlers, element_name);
 170                 if (state->current && state->current->init)
 171                         state->user_data = state->current->init (state->assembly);
 172         }
 173         if (state->current && state->current->start)
 174                 state->current->start (state->user_data, element_name, attribute_names, attribute_values);
 175 }
 176
 177 static void end_element   (GMarkupParseContext *context,
 178                            const gchar         *element_name,
 179                            gpointer             user_data,
 180                            GError             **error)
 181 {
 182         ParseState *state = user_data;
 183         if (state->current) {
 184                 if (state->current->end)
 185                         state->current->end (state->user_data, element_name);
 186                 if (strcmp (state->current->element_name, element_name) == 0) {
 187                         if (state->current->finish)
 188                                 state->current->finish (state->user_data);
 189                         state->current = NULL;
 190                         state->user_data = NULL;
 191                 }
 192         }
 193 }
 194
 195 static void parse_text    (GMarkupParseContext *context,
 196                            const gchar         *text,
 197                            gsize                text_len,
 198                            gpointer             user_data,
 199                            GError             **error)
 200 {
 201         ParseState *state = user_data;
 202         if (state->current && state->current->text)
 203                 state->current->text (state->user_data, text, text_len);
 204 }
 205
 206 static void passthrough   (GMarkupParseContext *context,
 207                            const gchar         *text,
 208                            gsize                text_len,
 209                            gpointer             user_data,
 210                            GError             **error)
 211 {
 212         /* do nothing */
 213 }
 214
 215 static void parse_error   (GMarkupParseContext *context,
 216                            GError              *error,
 217                            gpointer             user_data)
 218 {
 219         ParseState *state = user_data;
 220         const gchar *msg;
 221         const gchar *filename;
 222
 223         filename = state && state->user_data ? (gchar *) state->user_data : "<unknown>";
 224         msg = error && error->message ? error->message : "";
 225         g_warning ("Error parsing %s: %s", filename, msg);
 226 }
 227
 228 static int
 229 arch_matches (const char* arch, const char *value)
 230 {
 231         char **splitted, **p;
 232         int found = FALSE;
 233         if (value [0] == '!')
 234                 return !arch_matches (arch, value + 1);
 235         p = splitted = g_strsplit (value, ",", 0);
 236         while (*p) {
 237                 if (strcmp (arch, *p) == 0) {
 238                         found = TRUE;
 239                         break;
 240                 }
 241                 p++;
 242         }
 243         g_strfreev (splitted);
 244         return found;
 245 }
 246
 247 typedef struct {
 248         char *dll;
 249         char *target;
 250         int ignore;
 251         MonoImage *assembly;
 252 } DllInfo;
 253
 254 static void*
 255 dllmap_init (MonoImage *assembly) {
 256         DllInfo *info = g_new0 (DllInfo, 1);
 257         info->assembly = assembly;
 258         return info;
 259 }
 260
 261 static void
 262 dllmap_start (gpointer user_data,
 263               const gchar         *element_name,
 264               const gchar        **attribute_names,
 265               const gchar        **attribute_values)
 266 {
 267         int i;
 268         DllInfo *info = user_data;
 269
 270         if (strcmp (element_name, "dllmap") == 0) {
 271                 g_free (info->dll);
 272                 g_free (info->target);
 273                 info->dll = info->target = NULL;
 274                 info->ignore = FALSE;
 275                 for (i = 0; attribute_names [i]; ++i) {
 276                         if (strcmp (attribute_names [i], "dll") == 0)
 277                                 info->dll = g_strdup (attribute_values [i]);
 278                         else if (strcmp (attribute_names [i], "target") == 0)
 279                                 info->target = g_strdup (attribute_values [i]);
 280                         else if (strcmp (attribute_names [i], "os") == 0 && !arch_matches (CONFIG_OS, attribute_values [i]))
 281                                 info->ignore = TRUE;
 282                         else if (strcmp (attribute_names [i], "cpu") == 0 && !arch_matches (CONFIG_CPU, attribute_values [i]))
 283                                 info->ignore = TRUE;
 284                         else if (strcmp (attribute_names [i], "wordsize") == 0 && !arch_matches (CONFIG_WORDSIZE, attribute_values [i]))
 285                                 info->ignore = TRUE;
 286                 }
 287                 if (!info->ignore)
 288                         mono_dllmap_insert (info->assembly, info->dll, NULL, info->target, NULL);
 289         } else if (strcmp (element_name, "dllentry") == 0) {
 290                 const char *name = NULL, *target = NULL, *dll = NULL;
 291                 int ignore = FALSE;
 292                 for (i = 0; attribute_names [i]; ++i) {
 293                         if (strcmp (attribute_names [i], "dll") == 0)
 294                                 dll = attribute_values [i];
 295                         else if (strcmp (attribute_names [i], "target") == 0)
 296                                 target = attribute_values [i];
 297                         else if (strcmp (attribute_names [i], "name") == 0)
 298                                 name = attribute_values [i];
 299                         else if (strcmp (attribute_names [i], "os") == 0 && !arch_matches (CONFIG_OS, attribute_values [i]))
 300                                 ignore = TRUE;
 301                         else if (strcmp (attribute_names [i], "cpu") == 0 && !arch_matches (CONFIG_CPU, attribute_values [i]))
 302                                 ignore = TRUE;
 303                         else if (strcmp (attribute_names [i], "wordsize") == 0 && !arch_matches (CONFIG_WORDSIZE, attribute_values [i]))
 304                                 ignore = TRUE;
 305                 }
 306                 if (!dll)
 307                         dll = info->dll;
 308                 if (!info->ignore && !ignore)
 309                         mono_dllmap_insert (info->assembly, info->dll, name, dll, target);
 310         }
 311 }
 312
 313 static void
 314 dllmap_finish (gpointer user_data)
 315 {
 316         DllInfo *info = user_data;
 317
 318         g_free (info->dll);
 319         g_free (info->target);
 320         g_free (info);
 321 }
 322
 323 static const MonoParseHandler
 324 dllmap_handler = {
 325         "dllmap",
 326         dllmap_init,
 327         dllmap_start,
 328         NULL, /* text */
 329         NULL, /* end */
 330         dllmap_finish
 331 };
 332
 333 static void
 334 legacyUEP_start (gpointer user_data,
 335               const gchar         *element_name,
 336               const gchar        **attribute_names,
 337               const gchar        **attribute_values) {
 338         if ((strcmp (element_name, "legacyUnhandledExceptionPolicy") == 0) &&
 339                         (attribute_names [0] != NULL) &&
 340                         (strcmp (attribute_names [0], "enabled") == 0)) {
 341                 if ((strcmp (attribute_values [0], "1") == 0) ||
 342                                 (g_ascii_strcasecmp (attribute_values [0], "true") == 0)) {
 343                         mono_runtime_unhandled_exception_policy_set (MONO_UNHANDLED_POLICY_LEGACY);
 344                 }
 345         }
 346 }
 347
 348 static const MonoParseHandler
 349 legacyUEP_handler = {
 350         "legacyUnhandledExceptionPolicy",
 351         NULL, /* init */
 352         legacyUEP_start,
 353         NULL, /* text */
 354         NULL, /* end */
 355         NULL, /* finish */
 356 };
 357
 358 static int inited = 0;
 359
 360 static void
 361 mono_config_init (void)
 362 {
 363         inited = 1;
 364         config_handlers = g_hash_table_new (g_str_hash, g_str_equal);
 365         g_hash_table_insert (config_handlers, (gpointer) dllmap_handler.element_name, (gpointer) &dllmap_handler);
 366         g_hash_table_insert (config_handlers, (gpointer) legacyUEP_handler.element_name, (gpointer) &legacyUEP_handler);
 367 }
 368
 369 /* FIXME: error handling */
 370
 371 static void
 372 mono_config_parse_xml_with_context (ParseState *state, const char *text, gsize len)
 373 {
 374         GMarkupParseContext *context;
 375
 376         if (!inited)
 377                 mono_config_init ();
 378
 379         context = g_markup_parse_context_new (&mono_parser, 0, state, NULL);
 380         if (g_markup_parse_context_parse (context, text, len, NULL)) {
 381                 g_markup_parse_context_end_parse (context, NULL);
 382         }
 383         g_markup_parse_context_free (context);
 384 }
 385
 386 /* If assembly is NULL, parse in the global context */
 387 static int
 388 mono_config_parse_file_with_context (ParseState *state, const char *filename)
 389 {
 390         gchar *text;
 391         gsize len;
 392         gint offset;
 393
 394         mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_CONFIG,
 395                         "Config attempting to parse: '%s'.", filename);
 396
 397         if (!g_file_get_contents (filename, &text, &len, NULL))
 398                 return 0;
 399
 400
 401         offset = 0;
 402         if (len > 3 && text [0] == '\xef' && text [1] == (gchar) '\xbb' && text [2] == '\xbf')
 403                 offset = 3; /* Skip UTF-8 BOM */
 404         if (state->user_data == NULL)
 405                 state->user_data = (gpointer) filename;
 406         mono_config_parse_xml_with_context (state, text + offset, len - offset);
 407         g_free (text);
 408         return 1;
 409 }
 410
 411 /**
 412  * mono_config_parse_memory:
 413  * @buffer: a pointer to an string XML representation of the configuration
 414  *
 415  * Parses the configuration from a buffer
 416  */
 417 void
 418 mono_config_parse_memory (const char *buffer)
 419 {
 420         ParseState state = {NULL};
 421
 422         state.user_data = (gpointer) "<buffer>";
 423         mono_config_parse_xml_with_context (&state, buffer, strlen (buffer));
 424 }
 425
 426 static void
 427 mono_config_parse_file (const char *filename)
 428 {
 429         ParseState state = {NULL};
 430         state.user_data = (gpointer) filename;
 431         mono_config_parse_file_with_context (&state, filename);
 432 }
 433
 434 /*
 435  * use the equivalent lookup code from the GAC when available.
 436  * Depending on state, this should give something like:
 437  *      aname/version-pubtoken/
 438  *      aname/version/
 439  *      aname
 440  */
 441 static char*
 442 get_assembly_filename (MonoImage *image, int state)
 443 {
 444         switch (state) {
 445         case 0:
 446                 return g_strdup (mono_image_get_name (image));
 447         default:
 448                 return NULL;
 449         }
 450 }
 451
 452 typedef struct _BundledConfig BundledConfig;
 453
 454 struct _BundledConfig {
 455         BundledConfig *next;
 456         const char* aname;
 457         const char* config_xml;
 458 };
 459
 460 static BundledConfig *bundled_configs = NULL;
 461
 462 static const char *bundled_machine_config = NULL;
 463
 464 void
 465 mono_register_config_for_assembly (const char* assembly_name, const char* config_xml)
 466 {
 467         BundledConfig *bconfig;
 468
 469         bconfig = g_new0 (BundledConfig, 1);
 470         bconfig->aname = assembly_name;
 471         bconfig->config_xml = config_xml;
 472         bconfig->next = bundled_configs;
 473         bundled_configs = bconfig;
 474 }
 475
 476 const char *
 477 mono_config_string_for_assembly_file (const char *filename)
 478 {
 479         BundledConfig *bconfig;
 480
 481         for (bconfig = bundled_configs; bconfig; bconfig = bconfig->next) {
 482                 if (bconfig->aname && strcmp (bconfig->aname, filename) == 0)
 483                         return bconfig->config_xml;
 484         }
 485         return NULL;
 486 }
 487
 488 void
 489 mono_config_for_assembly (MonoImage *assembly)
 490 {
 491         ParseState state = {NULL};
 492         int got_it = 0, i;
 493         char *aname, *cfg, *cfg_name;
 494         const char *bundled_config;
 495         const char *home;
 496
 497         state.assembly = assembly;
 498
 499         bundled_config = mono_config_string_for_assembly_file (assembly->module_name);
 500         if (bundled_config) {
 501                 state.user_data = (gpointer) "<bundled>";
 502                 mono_config_parse_xml_with_context (&state, bundled_config, strlen (bundled_config));
 503         }
 504
 505         cfg_name = g_strdup_printf ("%s.config", mono_image_get_filename (assembly));
 506         mono_config_parse_file_with_context (&state, cfg_name);
 507         g_free (cfg_name);
 508
 509         cfg_name = g_strdup_printf ("%s.config", mono_image_get_name (assembly));
 510
 511         home = g_get_home_dir ();
 512
 513         for (i = 0; (aname = get_assembly_filename (assembly, i)) != NULL; ++i) {
 514                 cfg = g_build_filename (mono_get_config_dir (), "mono", "assemblies", aname, cfg_name, NULL);
 515                 got_it += mono_config_parse_file_with_context (&state, cfg);
 516                 g_free (cfg);
 517
 518 #ifdef TARGET_WIN32
 519                 cfg = g_build_filename (home, ".mono", "assemblies", aname, cfg_name, NULL);
 520                 got_it += mono_config_parse_file_with_context (&state, cfg);
 521                 g_free (cfg);
 522 #endif
 523                 g_free (aname);
 524                 if (got_it)
 525                         break;
 526         }
 527         g_free (cfg_name);
 528 }
 529
 530 /**
 531  * mono_config_parse:
 532  * @filename: the filename to load the configuration variables from.
 533  *
 534  * Pass a NULL filename to parse the default config files
 535  * (or the file in the MONO_CONFIG env var).
 536  */
 537 void
 538 mono_config_parse (const char *filename) {
 539         const char *home;
 540         char *mono_cfg;
 541 #ifndef TARGET_WIN32
 542         char *user_cfg;
 543 #endif
 544
 545         if (filename) {
 546                 mono_config_parse_file (filename);
 547                 return;
 548         }
 549
 550         home = g_getenv ("MONO_CONFIG");
 551         if (home) {
 552                 mono_config_parse_file (home);
 553                 return;
 554         }
 555
 556         mono_cfg = g_build_filename (mono_get_config_dir (), "mono", "config", NULL);
 557         mono_config_parse_file (mono_cfg);
 558         g_free (mono_cfg);
 559
 560 #ifndef TARGET_WIN32
 561         home = g_get_home_dir ();
 562         user_cfg = g_strconcat (home, G_DIR_SEPARATOR_S, ".mono/config", NULL);
 563         mono_config_parse_file (user_cfg);
 564         g_free (user_cfg);
 565 #endif
 566 }
 567
 568 static const char *mono_cfg_dir = NULL;
 569
 570 /* Invoked during startup */
 571 void
 572 mono_set_config_dir (const char *dir)
 573 {
 574         /* If this variable is set, overrides the directory computed */
 575         mono_cfg_dir = g_getenv ("MONO_CFG_DIR");
 576         if (mono_cfg_dir == NULL)
 577                 mono_cfg_dir = g_strdup (dir);
 578 }
 579
 580 const char*
 581 mono_get_config_dir (void)
 582 {
 583         if (mono_cfg_dir == NULL)
 584                 mono_set_dirs (NULL, NULL);
 585
 586         return mono_cfg_dir;
 587 }
 588
 589 void
 590 mono_register_machine_config (const char *config_xml)
 591 {
 592         bundled_machine_config = config_xml;
 593 }
 594
 595 const char *
 596 mono_get_machine_config (void)
 597 {
 598         return bundled_machine_config;
 599 }
 600
 601 static void
 602 assembly_binding_end (gpointer user_data, const char *element_name)
 603 {
 604         ParserUserData *pud = user_data;
 605
 606         if (!strcmp (element_name, "dependentAssembly")) {
 607                 if (pud->info_parsed && pud->info) {
 608                         pud->info_parsed (pud->info, pud->user_data);
 609                         g_free (pud->info->name);
 610                         g_free (pud->info->culture);
 611                 }
 612         }
 613 }
 614
 615 static void
 616 publisher_policy_start (gpointer user_data,
 617                 const gchar *element_name,
 618                 const gchar **attribute_names,
 619                 const gchar **attribute_values)
 620 {
 621         ParserUserData *pud;
 622         MonoAssemblyBindingInfo *info;
 623         int n;
 624
 625         pud = user_data;
 626         info = pud->info;
 627         if (!strcmp (element_name, "dependentAssembly")) {
 628                 info->name = NULL;
 629                 info->culture = NULL;
 630                 info->has_old_version_bottom = FALSE;
 631                 info->has_old_version_top = FALSE;
 632                 info->has_new_version = FALSE;
 633                 info->is_valid = FALSE;
 634                 memset (&info->old_version_bottom, 0, sizeof (info->old_version_bottom));
 635                 memset (&info->old_version_top, 0, sizeof (info->old_version_top));
 636                 memset (&info->new_version, 0, sizeof (info->new_version));
 637         } if (!strcmp (element_name, "assemblyIdentity")) {
 638                 for (n = 0; attribute_names [n]; n++) {
 639                         const gchar *attribute_name = attribute_names [n];
 640
 641                         if (!strcmp (attribute_name, "name"))
 642                                 info->name = g_strdup (attribute_values [n]);
 643                         else if (!strcmp (attribute_name, "publicKeyToken")) {
 644                                 if (strlen (attribute_values [n]) == MONO_PUBLIC_KEY_TOKEN_LENGTH - 1)
 645                                         g_strlcpy ((char *) info->public_key_token, attribute_values [n], MONO_PUBLIC_KEY_TOKEN_LENGTH);
 646                         } else if (!strcmp (attribute_name, "culture")) {
 647                                 if (!strcmp (attribute_values [n], "neutral"))
 648                                         info->culture = g_strdup ("");
 649                                 else
 650                                         info->culture = g_strdup (attribute_values [n]);
 651                         }
 652                 }
 653         } else if (!strcmp (element_name, "bindingRedirect")) {
 654                 for (n = 0; attribute_names [n]; n++) {
 655                         const gchar *attribute_name = attribute_names [n];
 656
 657                         if (!strcmp (attribute_name, "oldVersion")) {
 658                                 gchar **numbers, **version, **versions;
 659                                 gint major, minor, build, revision;
 660
 661                                 /* Invalid value */
 662                                 if (!strcmp (attribute_values [n], ""))
 663                                         return;
 664
 665                                 versions = g_strsplit (attribute_values [n], "-", 2);
 666                                 version = g_strsplit (*versions, ".", 4);
 667
 668                                 /* We assign the values to gint vars to do the checks */
 669                                 numbers = version;
 670                                 major = *numbers ? atoi (*numbers++) : -1;
 671                                 minor = *numbers ? atoi (*numbers++) : -1;
 672                                 build = *numbers ? atoi (*numbers++) : -1;
 673                                 revision = *numbers ? atoi (*numbers) : -1;
 674                                 g_strfreev (version);
 675                                 if (major < 0 || minor < 0 || build < 0 || revision < 0) {
 676                                         g_strfreev (versions);
 677                                         return;
 678                                 }
 679
 680                                 info->old_version_bottom.major = major;
 681                                 info->old_version_bottom.minor = minor;
 682                                 info->old_version_bottom.build = build;
 683                                 info->old_version_bottom.revision = revision;
 684                                 info->has_old_version_bottom = TRUE;
 685
 686                                 if (!*(versions + 1)) {
 687                                         g_strfreev (versions);
 688                                         continue;
 689                                 }
 690
 691                                 numbers = version = g_strsplit (*(versions + 1), ".", 4);
 692                                 major = *numbers ? atoi (*numbers++) : -1;
 693                                 minor = *numbers ? atoi (*numbers++) : -1;
 694                                 build = *numbers ? atoi (*numbers++) : -1;
 695                                 revision = *numbers ? atoi (*numbers) : 1;
 696                                 g_strfreev (version);
 697                                 if (major < 0 || minor < 0 || build < 0 || revision < 0) {
 698                                         g_strfreev (versions);
 699                                         return;
 700                                 }
 701
 702                                 info->old_version_top.major = major;
 703                                 info->old_version_top.minor = minor;
 704                                 info->old_version_top.build = build;
 705                                 info->old_version_top.revision = revision;
 706                                 info->has_old_version_top = TRUE;
 707
 708                                 g_strfreev (versions);
 709                         } else if (!strcmp (attribute_name, "newVersion")) {
 710                                 gchar **numbers, **version;
 711
 712                                 /* Invalid value */
 713                                 if (!strcmp (attribute_values [n], ""))
 714                                         return;
 715
 716                                 numbers = version = g_strsplit (attribute_values [n], ".", 4);
 717                                 info->new_version.major = *numbers ? atoi (*numbers++) : -1;
 718                                 info->new_version.minor = *numbers ? atoi (*numbers++) : -1;
 719                                 info->new_version.build = *numbers ? atoi (*numbers++) : -1;
 720                                 info->new_version.revision = *numbers ? atoi (*numbers) : -1;
 721                                 info->has_new_version = TRUE;
 722                                 g_strfreev (version);
 723                         }
 724                 }
 725         }
 726 }
 727
 728 static MonoParseHandler
 729 publisher_policy_parser = {
 730         "", /* We don't need to use declare an xml element */
 731         NULL,
 732         publisher_policy_start,
 733         NULL,
 734         NULL,
 735         NULL
 736 };
 737
 738 void
 739 mono_config_parse_publisher_policy (const gchar *filename, MonoAssemblyBindingInfo *info)
 740 {
 741         ParserUserData user_data = {
 742                 info,
 743                 NULL,
 744                 NULL
 745         };
 746         ParseState state = {
 747                 &publisher_policy_parser, /* MonoParseHandler */
 748                 &user_data, /* user_data */
 749                 NULL, /* MonoImage (we don't need it right now)*/
 750                 TRUE /* We are already inited */
 751         };
 752
 753         mono_config_parse_file_with_context (&state, filename);
 754 }
 755
 756 static MonoParseHandler
 757 config_assemblybinding_parser = {
 758         "", /* We don't need to use declare an xml element */
 759         NULL,
 760         publisher_policy_start,
 761         NULL,
 762         assembly_binding_end,
 763         NULL
 764 };
 765
 766 void
 767 mono_config_parse_assembly_bindings (const char *filename, int amajor, int aminor, void *user_data, void (*infocb)(MonoAssemblyBindingInfo *info, void *user_data))
 768 {
 769         MonoAssemblyBindingInfo info;
 770         ParserUserData pud;
 771         ParseState state;
 772
 773         info.major = amajor;
 774         info.minor = aminor;
 775
 776         pud.info = &info;
 777         pud.info_parsed = infocb;
 778         pud.user_data = user_data;
 779
 780         state.current = &config_assemblybinding_parser;  /* MonoParseHandler */
 781         state.user_data = &pud;
 782         state.assembly = NULL; /* MonoImage (we don't need it right now)*/
 783         state.inited = TRUE; /* We are already inited */
 784
 785         mono_config_parse_file_with_context (&state, filename);
 786 }
 787