settings.c

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/* SPDX-FileCopyrightText: 2010-2023 Greenbone AG
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */

 
#include "settings.h"
 
#include <stdio.h>
#include <string.h> /* for strlen */
 
#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN "libgvm base"

static int
settings_init_from_file (settings_t *settings, const gchar *filename,
                         const gchar *group)
{
  GError *error = NULL;
 
  if (filename == NULL || group == NULL)
    return -1;
 
  gchar *contents = NULL;
 
  if (!g_file_get_contents (filename, &contents, NULL, &error))
    {
      g_error_free (error);
      return -1;
    }
 
  if (contents != NULL)
    {
      gchar *contents_with_group = g_strjoin ("\n", "[Misc]", contents, NULL);
      settings->key_file = g_key_file_new ();
 
      if (!g_key_file_load_from_data (
            settings->key_file, contents_with_group,
            strlen (contents_with_group),
            G_KEY_FILE_KEEP_COMMENTS | G_KEY_FILE_KEEP_TRANSLATIONS, &error))
        {
          g_warning ("Failed to load configuration from %s: %s", filename,
                     error->message);
          g_error_free (error);
          g_free (contents_with_group);
          g_free (contents);
          return -1;
        }
      g_free (contents_with_group);
      g_free (contents);
    }
 
  settings->group_name = g_strdup (group);
  settings->file_name = g_strdup (filename);
 
  return 0;
}

void
settings_cleanup (settings_t *settings)
{
  g_free (settings->group_name);
  g_free (settings->file_name);
  g_key_file_free (settings->key_file);
}

int
init_settings_iterator_from_file (settings_iterator_t *iterator,
                                  const gchar *filename, const gchar *group)
{
  int ret;
  gsize keys_length;
  GError *error = NULL;
 
  ret = settings_init_from_file (&iterator->settings, filename, group);
  if (ret)
    return ret;
 
  iterator->keys = g_key_file_get_keys (iterator->settings.key_file, group,
                                        &keys_length, &error);
 
  if (iterator->keys == NULL)
    {
      if (error)
        {
          g_warning ("Failed to retrieve keys of group %s from %s: %s", group,
                     filename, error->message);
          g_error_free (error);
        }
      g_key_file_free (iterator->settings.key_file);
      return -1;
    }
 
  iterator->current_key = iterator->keys - 1;
  iterator->last_key = iterator->keys + keys_length - 1;
 
  return 0;
}

void
cleanup_settings_iterator (settings_iterator_t *iterator)
{
  g_strfreev (iterator->keys);
  settings_cleanup (&iterator->settings);
}

gboolean
settings_iterator_next (settings_iterator_t *iterator)
{
  if (iterator->current_key == iterator->last_key)
    return FALSE;
  iterator->current_key++;
  return TRUE;
}

const gchar *
settings_iterator_name (settings_iterator_t *iterator)
{
  return *iterator->current_key;
}

gchar *
settings_iterator_value (settings_iterator_t *iterator)
{
  return g_key_file_get_value (iterator->settings.key_file,
                               iterator->settings.group_name,
                               *iterator->current_key, NULL);
}