1 files changed, 122 insertions, 0 deletions
diff --git a/src/analysis/scan/items/magic/cookie.c b/src/analysis/scan/items/magic/cookie.c
new file mode 100644
index 0000000..41f26a0
--- /dev/null
+++ b/src/analysis/scan/items/magic/cookie.c
@@ -0,0 +1,122 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * cookie.c - chargement des motifs de reconnaissance de contenus
+ *
+ * Copyright (C) 2023 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 <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "cookie.h"
+
+
+#include <assert.h>
+
+
+#include <i18n.h>
+
+
+#include "../../../../core/logs.h"
+
+
+
+/* Référence des bibliothèques de reconnaissance */
+static magic_t __magic_cookie = 0;
+
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : -                                                            *
+*                                                                             *
+*  Description : Charge les motifs de reconnaissance de contenus.             *
+*                                                                             *
+*  Retour      : Bilan de l'opération de chargemement.                        *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+bool init_magic_cookie(void)
+{
+    bool result;                            /* Bilan à retourner           */
+    int ret;                                /* Bilan d'une opération       */
+
+    __magic_cookie = magic_open(0);
+
+    ret = magic_load(__magic_cookie, NULL);
+    result = (ret != -1);
+
+    if (!result)
+        log_variadic_message(LMT_EXT_ERROR, _("cannot load magic database: %s"), magic_error(__magic_cookie));
+
+    return result;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : -                                                            *
+*                                                                             *
+*  Description : Décharge les motifs de reconnaissance de contenus.           *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+void exit_magic_cookie(void)
+{
+    magic_close(__magic_cookie);
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : flags = forme de reconnaissance à préparer.                  *
+*                                                                             *
+*  Description : Fournit la référence aux mécanismes de reconnaissance.       *
+*                                                                             *
+*  Retour      : Cookie prêt à emploi.                                        * 
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+magic_t get_magic_cookie(int flags)
+{
+    magic_t result;                         /* Référence à retourner       */
+#ifndef NDEBUG
+    int ret;                                /* Bilan de la préparation     */
+#endif
+
+    result = __magic_cookie;
+    assert(result != 0);
+
+#ifndef NDEBUG
+    ret = magic_setflags(result, flags);
+    assert(ret != -1);
+#else
+    magic_setflags(result, flags);
+#endif
+
+    return result;
+
+}