1 files changed, 135 insertions, 0 deletions
diff --git a/src/arch/instriter.c b/src/arch/instriter.c
new file mode 100644
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+++ b/src/arch/instriter.c
@@ -0,0 +1,135 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * instriter.h - prototypes pour le parcours simplifié d'un ensemble d'instructions
+ *
+ * Copyright (C) 2016 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 "instriter.h"
+
+
+#include <malloc.h>
+
+
+#include "processor.h"
+
+
+
+/* Suivi d'un parcours d'instructions */
+typedef struct _instr_iter_t
+{
+    GArchProcessor *proc;                   /* Conteneur associé           */
+    unsigned int stamp;                     /* Suivi d'évolutions externes */
+
+    size_t index;                           /* Instruction courante        */
+
+} instr_iter_t;
+
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : proc  = processeur recensant diverses instructions.          *
+*                index = indice de la première instruction à fournir.         *
+*                                                                             *
+*  Description : Construit un itérateur pour parcourir des instructions.      *
+*                                                                             *
+*  Retour      : Itérateur prêt à emploi.                                     *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+instr_iter_t *create_instruction_iterator(GArchProcessor *proc, size_t index)
+{
+    instr_iter_t *result;                   /* Structure à retourner       */
+
+    result = (instr_iter_t *)malloc(sizeof(instr_iter_t));
+
+    g_object_ref(G_OBJECT(proc));
+
+    result->proc = proc;
+    result->stamp = g_arch_processor_get_stamp(proc);
+
+    result->index = index;
+
+    return result;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : iter = itérateur à traiter.                                  *
+*                                                                             *
+*  Description : Détruit un itérateur mis en place.                           *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+void delete_instruction_iterator(instr_iter_t *iter)
+{
+    g_object_unref(G_OBJECT(iter->proc));
+
+    free(iter);
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : iter = itérateur à manipuler.                                *
+*                                                                             *
+*  Description : Fournit l'instruction qui en suit une autre.                 *
+*                                                                             *
+*  Retour      : Instruction suivante trouvée, ou NULL.                       *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+GArchInstruction *get_instruction_iterator_next(instr_iter_t *iter)
+{
+    GArchInstruction *result;               /* Résultat à retourner        */
+
+    g_arch_processor_lock(iter->proc);
+
+    if (iter->stamp != g_arch_processor_get_stamp(iter->proc))
+        result = NULL;
+
+    else
+    {
+        if (iter->index < g_arch_processor_count_disassembled_instructions(iter->proc))
+            result = g_arch_processor_get_disassembled_instruction(iter->proc, iter->index);
+        else
+            result = NULL;
+
+        if (result != NULL)
+            iter->index++;
+
+    }
+
+    g_arch_processor_unlock(iter->proc);
+
+    return result;
+
+}