WINDOWS/archlib.c

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/*
 *      This program 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
 *      2 of the License, or (at your option) any later version.
 *
 *  Copyright 1999-2001 Michael Klein <michael(dot)klein(at)puffin(dot)lb(dot)shuttle(dot)de>
 *  Copyright 2001-2005,2007,2008 Spiro Trikaliotis
 *
*/

#include <windows.h>
#include <stdlib.h>

#define DBG_USERMODE

#define DBG_DLL

#define DBG_PROGNAME "OPENCBM.DLL"

#define DBG_IS_DEBUG_C

#include "configuration.h"
#include "debug.h"
#include "getpluginaddress.h"


#define OPENCBM_PLUGIN 1 
#include "archlib.h"
#include "archlib-windows.h"
#include "libmisc.h"

BOOL WINAPI
DllMain(IN HANDLE Module, IN DWORD Reason, IN LPVOID Reserved)
{
    static BOOL bIsOpen = FALSE;

    FUNC_ENTER();

#if DBG

    if (Reason == DLL_PROCESS_ATTACH)
    {
        // Read the debugging flags from the registry

        cbm_get_debugging_flags(NULL);
    }

#endif

    FUNC_LEAVE_BOOL(TRUE);
}


BOOL CBMAPIDECL opencbm_plugin_install_generic(const char * DefaultPluginname, unsigned int DefaultLocation)
{
    BOOL error = TRUE;

    opencbm_configuration_handle configuration_handle;

    const char * configurationFilename = NULL;

    FUNC_ENTER();

    do {
        /* create the INI file, if not present, and create the needed keys */

        configurationFilename = configuration_get_default_filename_for_install(DefaultLocation);
        if (configurationFilename == NULL) {
            break;
        }

        configuration_handle = opencbm_configuration_create(configurationFilename);

        if (configuration_handle == NULL) {
            break;
        }

        if (DefaultPluginname != NULL) {
            error = opencbm_configuration_set_data(configuration_handle, 
                       "plugins", "default", DefaultPluginname);
        }
        else {
            error = FALSE;
        }

        error = opencbm_configuration_close(configuration_handle) || error;

    } while (0);

    cbmlibmisc_strfree(configurationFilename);

    FUNC_LEAVE_BOOL(error);
}

static BOOL
cbm_plugin_call_self_init_plugin(const char * Pluginname, const char * Filepath, const CbmPluginInstallProcessCommandlineData_t * CommandlineData)
{
    BOOL error = TRUE;
    SHARED_OBJECT_HANDLE pluginHandle = SHARED_OBJECT_HANDLE_INVALID;

    FUNC_ENTER();

    do {
        opencbm_plugin_self_init_plugin_t * opencbm_plugin_self_init_plugin = NULL;

        pluginHandle = plugin_load(Filepath);
        if (pluginHandle == SHARED_OBJECT_HANDLE_INVALID) {
            DBG_ERROR((DBG_PREFIX "Could not load plugin '%s' at '%s' for self-init!\n", Pluginname, Filepath));
            break;
        }

        opencbm_plugin_self_init_plugin = plugin_get_address(pluginHandle, "opencbm_plugin_self_init_plugin");
        if ( ! opencbm_plugin_self_init_plugin ) {
            error = FALSE;
            break;
        }

        error = opencbm_plugin_self_init_plugin();
        if (error) {
            break;
        }

        error = plugin_set_active(Pluginname);

    } while (0);

    if (pluginHandle != SHARED_OBJECT_HANDLE_INVALID) {
        plugin_unload(pluginHandle);
    }

    FUNC_LEAVE_BOOL(error);
}

BOOL CBMAPIDECL opencbm_plugin_install_plugin_data(const char * Pluginname, const char * Filepath, const CbmPluginInstallProcessCommandlineData_t * CommandlineData)
{
    BOOL error = TRUE;

    opencbm_configuration_handle configuration_handle;

    const char * configurationFilename = NULL; 

    FUNC_ENTER();

    do {
        /* create the INI file, if not present, and create the needed keys */

        configurationFilename = configuration_get_default_filename();

        if (configurationFilename == NULL) {
            break;
        }

        configuration_handle = opencbm_configuration_open(configurationFilename);
        if (configuration_handle == NULL) {
            DBG_PRINT((DBG_PREFIX "No configuration file present. Is OpenCBM installed at all?"));
            break;
        }

        error = opencbm_configuration_set_data(configuration_handle, 
                   Pluginname, "location", Filepath);

        if (error == 0) {
            error = cbm_plugin_call_self_init_plugin(Pluginname, Filepath, CommandlineData->OptionMemory);
        }

        error = opencbm_configuration_close(configuration_handle) || error;

    } while (0);

    cbmlibmisc_strfree(configurationFilename);

    FUNC_LEAVE_BOOL(error);
}

opencbm_configuration_enum_sections_callback_t callback;

static int opencbm_plugin_get_all_plugin_names_callback(opencbm_configuration_handle Handle,
                                                    const char Section[],
                                                    void * Data)
{
    opencbm_plugin_get_all_plugin_names_context_t * Context = Data;

    BOOL error = 0;

    FUNC_ENTER();

    do {
        if ( ! Section || strcmp(Section, "plugins") == 0 ) {
            break;
        }

        /*
         * check if the plugin is marked as active.
         * Only active plugins are reported back,
         */

        if ( ! plugin_is_active(Handle, Section) ) {
            break;
        }

       error = Context->Callback(Context->InstallParameter, Section);

    } while (0);

    FUNC_LEAVE_BOOL(error);
}

EXTERN BOOL CBMAPIDECL opencbm_plugin_get_all_plugin_names(opencbm_plugin_get_all_plugin_names_context_t * Context)
{
    BOOL error = TRUE;
    opencbm_configuration_handle configuration_handle = NULL;
    const char * configurationFilename = NULL;

    FUNC_ENTER();

    do {
        configurationFilename = configuration_get_default_filename();
        if (configurationFilename == NULL) {
            break;
        }

        configuration_handle = opencbm_configuration_open(configurationFilename);
        if (configuration_handle == NULL) {
            DBG_PRINT((DBG_PREFIX "No configuration file present. Is OpenCBM installed at all?"));
            break;
        }

        error = opencbm_configuration_enum_sections(configuration_handle,
            opencbm_plugin_get_all_plugin_names_callback, Context);

    } while (0);

    opencbm_configuration_close(configuration_handle);

    cbmlibmisc_strfree(configurationFilename);

    FUNC_LEAVE_BOOL(error);
}