/* Chrysalide - Outil d'analyse de fichiers binaires
* core.c - enregistrement des fonctions principales
*
* Copyright (C) 2022 Cyrille Bagard
*
* This file is part of Chrysalide.
*
* Chrysalide 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.
*
* Chrysalide 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 .
*/
#include "core.h"
#include
#include
#include "items/count.h"
#include "items/datasize.h"
#include "items/maxcommon.h"
#include "items/modpath.h"
#include "items/uint.h"
#include "items/console/log.h"
#ifdef INCLUDE_MAGIC_SUPPORT
# include "items/magic/type.h"
# include "items/magic/mime-encoding.h"
# include "items/magic/mime-type.h"
#endif
#include "items/math/to_string.h"
#include "items/string/lower.h"
#include "items/string/to_int.h"
#include "items/string/upper.h"
#include "items/string/wide.h"
#include "items/time/make.h"
#include "items/time/now.h"
#include "patterns/modifiers/hex.h"
#include "patterns/modifiers/lower.h"
#include "patterns/modifiers/plain.h"
#include "patterns/modifiers/rev.h"
#include "patterns/modifiers/upper.h"
#include "patterns/modifiers/wide.h"
#include "patterns/modifiers/xor.h"
/* Liste des modificateurs disponibles */
typedef struct _available_modifier_t
{
sized_string_t name; /* Désignation humaine */
GScanTokenModifier *instance; /* Mécanisme correspondant */
} available_modifier_t;
static available_modifier_t *__modifiers = NULL;
static size_t __modifiers_count = 0;
/******************************************************************************
* *
* Paramètres : modifier = modificateur à rendre disponible. *
* *
* Description : Inscrit un modificateur dans la liste des disponibles. *
* *
* Retour : Bilan des enregistrements effectués : true si nouveauté. *
* *
* Remarques : - *
* *
******************************************************************************/
bool register_scan_token_modifier(GScanTokenModifier *modifier)
{
bool result; /* Bilan à retourner */
sized_string_t name; /* Nom donné au modificateur */
GScanTokenModifier *found; /* Alternative présente */
available_modifier_t *last; /* Emplacement disponible */
name.data = g_scan_token_modifier_get_name(modifier);
name.len = strlen(name.data);
found = find_scan_token_modifiers_for_name(&name);
result = (found == NULL);
if (!result)
exit_szstr(&name);
else
{
__modifiers_count++;
__modifiers = realloc(__modifiers, __modifiers_count * sizeof(available_modifier_t));
last = &__modifiers[__modifiers_count - 1];
last->name = name;
last->instance = modifier;
g_object_ref(G_OBJECT(modifier));
}
return result;
}
/******************************************************************************
* *
* Paramètres : - *
* *
* Description : Charge tous les modificateurs de base. *
* *
* Retour : Bilan des opérations d'enregistrement. *
* *
* Remarques : - *
* *
******************************************************************************/
bool load_all_known_scan_token_modifiers(void)
{
bool result; /* Bilan à retourner */
result = true;
#define REGISTER_SCAN_MODIFIER(m) \
({ \
GScanTokenModifier *__mod; \
bool __status; \
__mod = m; \
__status = register_scan_token_modifier(__mod); \
g_object_unref(G_OBJECT(__mod)); \
__status; \
})
if (result) result = REGISTER_SCAN_MODIFIER(g_scan_hex_modifier_new());
if (result) result = REGISTER_SCAN_MODIFIER(g_scan_lower_modifier_new());
if (result) result = REGISTER_SCAN_MODIFIER(g_scan_plain_modifier_new());
if (result) result = REGISTER_SCAN_MODIFIER(g_scan_reverse_modifier_new());
if (result) result = REGISTER_SCAN_MODIFIER(g_scan_upper_modifier_new());
if (result) result = REGISTER_SCAN_MODIFIER(g_scan_wide_modifier_new());
if (result) result = REGISTER_SCAN_MODIFIER(g_scan_xor_modifier_new());
return result;
}
/******************************************************************************
* *
* Paramètres : count = nombre de motificateurs exportés. [OUT] *
* *
* Description : Fournit la désignation de l'ensemble des modificateurs. *
* *
* Retour : Liste de modificateurs enregistrés. *
* *
* Remarques : - *
* *
******************************************************************************/
char **list_all_scan_token_modifiers(size_t *count)
{
char **result; /* Liste à retourner */
size_t i; /* Boucle de parcours */
result = malloc(__modifiers_count * sizeof(char *));
*count = __modifiers_count;
for (i = 0; i < __modifiers_count; i++)
result[i] = strndup(__modifiers[i].name.data, __modifiers[i].name.len);
return result;
}
/******************************************************************************
* *
* Paramètres : - *
* *
* Description : Décharge tous les modificateurs inscrits. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
void unload_all_scan_token_modifiers(void)
{
size_t i; /* Boucle de parcours */
for (i = 0; i < __modifiers_count; i++)
{
exit_szstr(&__modifiers[i].name);
g_object_unref(G_OBJECT(__modifiers[i].instance));
}
if (__modifiers != NULL)
free(__modifiers);
}
/******************************************************************************
* *
* Paramètres : name = désignation du modificateur recherché. *
* *
* Description : Fournit le modificateur correspondant à un nom. *
* *
* Retour : Instance du modificateur identifié ou NULL. *
* *
* Remarques : - *
* *
******************************************************************************/
GScanTokenModifier *find_scan_token_modifiers_for_name(const sized_string_t *name)
{
GScanTokenModifier *result; /* Instance à renvoyer */
size_t i; /* Boucle de parcours */
available_modifier_t *registered; /* Infos d'enregistrement */
result = NULL;
for (i = 0; i < __modifiers_count; i++)
{
registered = __modifiers + i;
if (registered->name.len != name->len)
continue;
if (strncmp(registered->name.data, name->data, name->len) == 0)
{
result = registered->instance;
g_object_ref(G_OBJECT(result));
break;
}
}
return result;
}
/******************************************************************************
* *
* Paramètres : space = espace de noms à composer. *
* *
* Description : Inscrit les principales fonctions dans l'espace racine. *
* *
* Retour : Bilan des enregistrements effectués. *
* *
* Remarques : - *
* *
******************************************************************************/
bool populate_main_scan_namespace(GScanNamespace *space)
{
bool result; /* Bilan à retourner */
GScanNamespace *ns; /* Nouvel espace de noms */
result = true;
#define REGISTER_FUNC(s, f) \
({ \
GScanRegisteredItem *__item; \
bool __result; \
__item = f; \
__result = g_scan_namespace_register_item(s, __item); \
g_object_unref(G_OBJECT(__item)); \
__result; \
})
if (result) result = REGISTER_FUNC(space, g_scan_count_function_new());
if (result) result = REGISTER_FUNC(space, g_scan_datasize_function_new());
if (result) result = REGISTER_FUNC(space, g_scan_maxcommon_function_new());
if (result) result = REGISTER_FUNC(space, g_scan_modpath_function_new());
if (result) result = REGISTER_FUNC(space, g_scan_uint_function_new(MDS_8_BITS_SIGNED, SRE_LITTLE));
if (result) result = REGISTER_FUNC(space, g_scan_uint_function_new(MDS_8_BITS_UNSIGNED, SRE_LITTLE));
if (result) result = REGISTER_FUNC(space, g_scan_uint_function_new(MDS_16_BITS_SIGNED, SRE_LITTLE));
if (result) result = REGISTER_FUNC(space, g_scan_uint_function_new(MDS_16_BITS_SIGNED, SRE_BIG));
if (result) result = REGISTER_FUNC(space, g_scan_uint_function_new(MDS_16_BITS_UNSIGNED, SRE_LITTLE));
if (result) result = REGISTER_FUNC(space, g_scan_uint_function_new(MDS_16_BITS_UNSIGNED, SRE_BIG));
if (result) result = REGISTER_FUNC(space, g_scan_uint_function_new(MDS_32_BITS_SIGNED, SRE_LITTLE));
if (result) result = REGISTER_FUNC(space, g_scan_uint_function_new(MDS_32_BITS_SIGNED, SRE_BIG));
if (result) result = REGISTER_FUNC(space, g_scan_uint_function_new(MDS_32_BITS_UNSIGNED, SRE_LITTLE));
if (result) result = REGISTER_FUNC(space, g_scan_uint_function_new(MDS_32_BITS_UNSIGNED, SRE_BIG));
if (result) result = REGISTER_FUNC(space, g_scan_uint_function_new(MDS_64_BITS_SIGNED, SRE_LITTLE));
if (result) result = REGISTER_FUNC(space, g_scan_uint_function_new(MDS_64_BITS_SIGNED, SRE_BIG));
if (result) result = REGISTER_FUNC(space, g_scan_uint_function_new(MDS_64_BITS_UNSIGNED, SRE_LITTLE));
if (result) result = REGISTER_FUNC(space, g_scan_uint_function_new(MDS_64_BITS_UNSIGNED, SRE_BIG));
/* Console */
if (result)
{
ns = g_scan_namespace_new("console");
result = g_scan_namespace_register_item(space, G_SCAN_REGISTERED_ITEM(ns));
if (result) result = REGISTER_FUNC(ns, g_scan_console_log_function_new());
g_object_unref(G_OBJECT(ns));
}
/* Magic */
#ifdef INCLUDE_MAGIC_SUPPORT
if (result)
{
ns = g_scan_namespace_new("magic");
result = g_scan_namespace_register_item(space, G_SCAN_REGISTERED_ITEM(ns));
if (result) result = REGISTER_FUNC(ns, g_scan_magic_type_function_new());
if (result) result = REGISTER_FUNC(ns, g_scan_mime_encoding_function_new());
if (result) result = REGISTER_FUNC(ns, g_scan_mime_type_function_new());
g_object_unref(G_OBJECT(ns));
}
#endif
/* Math */
if (result)
{
ns = g_scan_namespace_new("math");
result = g_scan_namespace_register_item(space, G_SCAN_REGISTERED_ITEM(ns));
if (result) result = REGISTER_FUNC(ns, g_scan_math_to_string_function_new());
g_object_unref(G_OBJECT(ns));
}
/* String */
if (result)
{
ns = g_scan_namespace_new("string");
result = g_scan_namespace_register_item(space, G_SCAN_REGISTERED_ITEM(ns));
if (result) result = REGISTER_FUNC(ns, g_scan_string_lower_function_new());
if (result) result = REGISTER_FUNC(ns, g_scan_string_to_int_function_new());
if (result) result = REGISTER_FUNC(ns, g_scan_string_upper_function_new());
if (result) result = REGISTER_FUNC(ns, g_scan_string_wide_function_new());
g_object_unref(G_OBJECT(ns));
}
/* Time */
if (result)
{
ns = g_scan_namespace_new("time");
result = g_scan_namespace_register_item(space, G_SCAN_REGISTERED_ITEM(ns));
if (result) result = REGISTER_FUNC(ns, g_scan_time_make_function_new());
if (result) result = REGISTER_FUNC(ns, g_scan_time_now_function_new());
g_object_unref(G_OBJECT(ns));
}
return result;
}