/* Chrysalide - Outil d'analyse de fichiers binaires
 * symbols.c - gestion des symboles d'un PE
 *
 * Copyright (C) 2010-2017 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 Chrysalide.  If not, see <http://www.gnu.org/licenses/>.
 */


#include "symbols.h"


#include "pe-int.h"








/******************************************************************************
*                                                                             *
*  Paramètres  : format = description de l'exécutable à compléter.            *
*                                                                             *
*  Description : Charge en mémoire la liste humaine des symboles importés.    *
*                                                                             *
*  Retour      : Bilan de l'opération.                                        *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

bool load_pe_imported_symbols(GPeFormat *format)
{
    bool result;                            /* Bilan à retourner           */
    const image_data_directory *directory;  /* Répertoire original         */
    image_import_descriptor dll;            /* DLL importée                */
    off_t pos;                              /* Position de tête de lecture */
    off_t i;                                /* Boucle de parcours          */
    image_import_by_name import;            /* Fonction importée           */

    result = true;

    directory = &format->nt_headers.optional_header.data_directory[IMAGE_DIRECTORY_ENTRY_IMPORT];

    /* TODO : msg si size !% sizeof(...) */

    for (pos = directory->virtual_address;
         result && pos < (directory->virtual_address + directory->size); )
    {
        result = read_pe_image_import_descriptor(format, &pos, &dll);

        printf("mod orig thunk :: 0x%08x\n", dll.original_first_thunk);
        printf("mod name :: 0x%08x\n", dll.module_name);
        printf("mod first thunk :: 0x%08x\n", dll.first_thunk);

        i = dll.original_first_thunk;

        /* TODO : i == 0 */
        if (i == 0) continue;

        while ((result = read_pe_image_import_by_name(format, &i, &import)))
        {
            if (import.hint == 0 && import.name == NULL)
                break;



            printf(" >> import '%s'\n", import.name);


        }


    }

 lpis_exit:

    return result;

}
















/******************************************************************************
*                                                                             *
*  Paramètres  : format = description de l'exécutable à compléter.            *
*                                                                             *
*  Description : Charge en mémoire la liste humaine des symboles.             *
*                                                                             *
*  Retour      : Bilan de l'opération.                                        *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

bool load_pe_symbols(GPeFormat *format)
{
    bool result;                            /* Bilan à retourner           */

    /* Symboles externes */
    result = load_pe_imported_symbols(format);

    /* Symboles internes */

    return result;

}