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author | Cyrille Bagard <nocbos@gmail.com> | 2009-01-25 21:27:14 (GMT) |
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committer | Cyrille Bagard <nocbos@gmail.com> | 2009-01-25 21:27:14 (GMT) |
commit | 21493170bb188ad9548820c830c3e8d7055e3f46 (patch) | |
tree | fdc4d03b0aaa5e7ed8a0b8b151926f654cece321 /src/format/java/field.c | |
parent | 8f1e49332cd81760c98166be9df79a7136f5ca57 (diff) |
Supported the Java Class file format.
git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@46 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a
Diffstat (limited to 'src/format/java/field.c')
-rw-r--r-- | src/format/java/field.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/format/java/field.c b/src/format/java/field.c new file mode 100644 index 0000000..ede84f3 --- /dev/null +++ b/src/format/java/field.c @@ -0,0 +1,158 @@ + +/* OpenIDA - Outil d'analyse de fichiers binaires + * field.c - gestion des champs Java + * + * Copyright (C) 2008 Cyrille Bagard + * + * This file is part of OpenIDA. + * + * OpenIDA is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * OpenIDA is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with Foobar. If not, see <http://www.gnu.org/licenses/>. + */ + + +#include "field.h" + + +#include <malloc.h> + + +#include "attribute.h" +#include "java-int.h" +#include "../../common/endianness.h" + + + +/* Charge les propriétés d'un champ de classe. */ +bool load_java_field(java_format *, java_field *, off_t *); + +/* Décharge les propriétés d'un champ de classe. */ +void unload_java_field(java_format *, java_field *); + + + +/****************************************************************************** +* * +* Paramètres : format = description de l'exécutable à compléter. * +* pos = point de lecture à faire évoluer. [OUT] * +* * +* Description : Charge les champs d'un binaire Java. * +* * +* Retour : true si l'opération s'est bien déroulée, false sinon. * +* * +* Remarques : - * +* * +******************************************************************************/ + +bool load_java_fields(java_format *format, off_t *pos) +{ + bool result; /* Bilan à remonter */ + uint16_t i; /* Boucle de parcours */ + + result = read_u16(&format->fields_count, EXE_FORMAT(format)->content, pos, + EXE_FORMAT(format)->length, SRE_BIG); + + if (!result) return false; + + if (format->fields_count > 0) + { + format->fields = (java_field *)calloc(format->fields_count, sizeof(java_field)); + + for (i = 0; i < format->fields_count && result; i++) + result = load_java_field(format, &format->fields[i], pos); + + } + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : format = description de l'exécutable à vider. * +* * +* Description : Décharge les champs d'un binaire Java. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +void unload_java_fields(java_format *format) +{ + uint16_t i; /* Boucle de parcours */ + + for (i = 0; i < format->fields_count; i++) + unload_java_field(format, &format->fields[i]); + + free(format->fields); + + +} + + +/****************************************************************************** +* * +* Paramètres : format = description de l'exécutable à compléter. * +* field = élément à spécifier. [OUT] * +* pos = point de lecture à faire évoluer. [OUT] * +* * +* Description : Charge les propriétés d'un champ de classe. * +* * +* Retour : true si l'opération s'est bien déroulée, false sinon. * +* * +* Remarques : - * +* * +******************************************************************************/ + +bool load_java_field(java_format *format, java_field *field, off_t *pos) +{ + bool result; /* Bilan à retourner */ + + result = read_u16((uint16_t *)&field->access, EXE_FORMAT(format)->content, + pos, EXE_FORMAT(format)->length, SRE_BIG); + + result &= read_u16(&field->name_index, EXE_FORMAT(format)->content, + pos, EXE_FORMAT(format)->length, SRE_BIG); + result &= read_u16(&field->descriptor_index, EXE_FORMAT(format)->content, + pos, EXE_FORMAT(format)->length, SRE_BIG); + + result &= load_java_attributes(format, pos, + &field->attributes, &field->attributes_count); + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : format = description de l'exécutable à compléter. * +* field = élément à libérer. * +* * +* Description : Décharge les propriétés d'un champ de classe. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +void unload_java_field(java_format *format, java_field *field) +{ + if (field->attributes_count > 0) + unload_java_attributes(format, field->attributes, field->attributes_count); + +} |