diff options
Diffstat (limited to 'plugins/kaitai/parsers/switch.c')
| -rw-r--r-- | plugins/kaitai/parsers/switch.c | 112 |
1 files changed, 25 insertions, 87 deletions
diff --git a/plugins/kaitai/parsers/switch.c b/plugins/kaitai/parsers/switch.c index c823f27..6cfc96b 100644 --- a/plugins/kaitai/parsers/switch.c +++ b/plugins/kaitai/parsers/switch.c @@ -83,7 +83,7 @@ static void g_kaitai_switch_finalize(GKaitaiSwitch *); /* Parcourt un contenu binaire selon des spécifications Kaitai. */ -static bool g_kaitai_switch_parse_content(GKaitaiSwitch *, kaitai_scope_t *, GBinContent *, vmpa2t *, GMatchRecord **); +static bool g_kaitai_switch_parse_content(GKaitaiSwitch *, kaitai_scope_t *, GBinContent *, ext_vmpa_t *, GMatchRecord **); @@ -285,7 +285,7 @@ static const char *is_suitable_switch_case_for_integer(const switch_case_t *swca { if (value->type == GVT_UNSIGNED_INTEGER) { - unsigned_conv = strtoull(swcase->value, NULL, 10); + unsigned_conv = strtoull(swcase->value, NULL, 0); valid = (errno != ERANGE && errno != EINVAL); @@ -295,7 +295,7 @@ static const char *is_suitable_switch_case_for_integer(const switch_case_t *swca } else { - signed_conv = strtoll(swcase->value, NULL, 10); + signed_conv = strtoll(swcase->value, NULL, 0); valid = (errno != ERANGE && errno != EINVAL); @@ -569,7 +569,7 @@ bool g_kaitai_switch_create(GKaitaiSwitch *kswitch, GYamlNode *parent, GKaitaiAt * Paramètres : kswitch = structure Kaitai en cours de parcours. * * locals = variables locales pour les résolutions de types. * * content = données binaires à analyser et traduire. * -* pos = tête de lecture courante. [OUT] * +* epos = tête de lecture courante. [OUT] * * record = noeud d'arborescence d'éléments rencontrés. [OUT] * * * * Description : Parcourt un contenu binaire selon des spécifications Kaitai. * @@ -580,127 +580,65 @@ bool g_kaitai_switch_create(GKaitaiSwitch *kswitch, GYamlNode *parent, GKaitaiAt * * ******************************************************************************/ -static bool g_kaitai_switch_parse_content(GKaitaiSwitch *kswitch, kaitai_scope_t *locals, GBinContent *content, vmpa2t *pos, GMatchRecord **record) +static bool g_kaitai_switch_parse_content(GKaitaiSwitch *kswitch, kaitai_scope_t *locals, GBinContent *content, ext_vmpa_t *epos, GMatchRecord **record) { bool result; /* Bilan à retourner */ - GMatchRecord *reference; /* Correspondance à utiliser */ - GKaitaiParser *creator; /* Lecteur d'origine */ - KaitaiAttributePayload payload; /* Type de charge supportée */ - BaseType basic; /* Type de base reconnu */ - bool is_string; /* Type lié à une chaîne ? */ -#ifndef NDEBUG - bool status; /* Bilan d'une consultation */ -#endif const char *final_type; /* Type à utiliser au final */ resolved_value_t value; /* Valeur de cible entière */ + bool status; /* Bilan intermédiaire */ size_t i; /* Boucle de parcours */ GKaitaiAttribute *attrib; /* Lecteur approprié */ - result = false; - - /* Détermination de la forme de comparaison */ - - reference = g_match_record_find_by_name(locals->parent, - kswitch->target, strlen(kswitch->target), - DIRECT_SEARCH_DEEP_LEVEL); - - if (reference == NULL) - goto exit; - - creator = g_match_record_get_creator(reference); - - if (creator == NULL) - goto exit_with_ref; - - if (!G_IS_KAITAI_ATTRIBUTE(creator)) - goto exit_with_creator; - - payload = g_kaitai_attribute_get_payload(G_KAITAI_ATTRIBUTE(creator)); - - if ((payload & KAP_BASIC_TYPE) == 0) - goto exit_with_creator; - -#ifndef NDEBUG - status = g_kaitai_attribute_get_basic_type(G_KAITAI_ATTRIBUTE(creator), &basic, &is_string); - assert(status); -#else - g_kaitai_attribute_get_basic_type(G_KAITAI_ATTRIBUTE(creator), &basic, &is_string); -#endif - - /* Détermination du type visé */ + result = true; final_type = NULL; - if (is_string) - { - result = resolve_kaitai_expression_as_bytes(locals, - kswitch->target, - strlen(kswitch->target), - &value); - if (!result) goto exit_with_creator; + /* Tenative n°1 : version "entier" */ + + status = resolve_kaitai_expression_as_integer(locals, kswitch->target, strlen(kswitch->target), &value); + if (status) for (i = 0; i < kswitch->count; i++) { - final_type = is_suitable_switch_case_for_bytes(kswitch->cases[i], &value); + final_type = is_suitable_switch_case_for_integer(kswitch->cases[i], locals, &value); if (final_type != NULL) - break; + goto next_step; } - } - - else - { - if (basic == BTP_UCHAR || basic == BTP_USHORT || basic == BTP_UINT || basic == BTP_ULONG_LONG) - { - result = resolve_kaitai_expression_as_integer(locals, - kswitch->target, - strlen(kswitch->target), - &value); - if (!result) goto exit_with_creator; + status = resolve_kaitai_expression_as_bytes(locals, kswitch->target, strlen(kswitch->target), &value); - for (i = 0; i < kswitch->count; i++) - { - final_type = is_suitable_switch_case_for_integer(kswitch->cases[i], locals, &value); + /* Tenative n°1 : version "chaîne" */ - if (final_type != NULL) - break; + if (status) + for (i = 0; i < kswitch->count; i++) + { + final_type = is_suitable_switch_case_for_bytes(kswitch->cases[i], &value); - } + if (final_type != NULL) + goto next_step; } - else - printf("other type: %u\n", basic); - - } - if (final_type == NULL && kswitch->defcase != NULL) final_type = kswitch->defcase->type; + next_step: + /* Mise en place d'un attribut et analyse */ if (final_type != NULL) { attrib = g_kaitai_attribute_dup_for_user_type(kswitch->generic, final_type); - result = g_kaitai_parser_parse_content(G_KAITAI_PARSER(attrib), locals, content, pos, record); + result = g_kaitai_parser_parse_content(G_KAITAI_PARSER(attrib), locals, content, epos, record); g_object_unref(G_OBJECT(attrib)); } - exit_with_creator: - - g_object_unref(G_OBJECT(creator)); - - exit_with_ref: - - g_object_unref(G_OBJECT(reference)); - - exit: - + return true; return result; } |