+static struct GNUNET_CONFIGURATION_Handle *cfgDefault;
+
+struct DiffsCBData
+{
+ struct GNUNET_CONFIGURATION_Handle *cfg;
+ struct GNUNET_CONFIGURATION_Handle *cfgDiffs;
+ const char *section;
+ int callBackOption;
+ int status;
+};
+
+
+static void
+initDiffsCBData (struct DiffsCBData *cbData)
+{
+ cbData->section = NULL;
+ cbData->cfg = NULL;
+ cbData->cfgDiffs = NULL;
+ cbData->callBackOption = -1;
+ cbData->status = 0;
+}
+
+
+/**
+ * callback function for modifying
+ * and comparing configuration
+*/
+static void
+diffsCallBack (void *cls, const char *section, const char *option,
+ const char *value)
+{
+ struct DiffsCBData *cbData = cls;
+ int cbOption = cbData->callBackOption;
+
+ switch (cbOption)
+ {
+ case EDIT_SECTION:
+ if (NULL == cbData->section)
+ cbData->section = section;
+ if (strcmp (cbData->section, section) == 0)
+ {
+ GNUNET_CONFIGURATION_set_value_string (cbData->cfg, section, option,
+ "new-value");
+ GNUNET_CONFIGURATION_set_value_string (cbData->cfgDiffs, section, option,
+ "new-value");
+ }
+ break;
+ case EDIT_ALL:
+ GNUNET_CONFIGURATION_set_value_string (cbData->cfg, section, option,
+ "new-value");
+ GNUNET_CONFIGURATION_set_value_string (cbData->cfgDiffs, section, option,
+ "new-value");
+ break;
+ case ADD_NEW_ENTRY:
+ {
+ static int hit = 0;
+
+ if (hit == 0)
+ {
+ hit = 1;
+ GNUNET_CONFIGURATION_set_value_string (cbData->cfg, section, "new-key",
+ "new-value");
+ GNUNET_CONFIGURATION_set_value_string (cbData->cfgDiffs, section,
+ "new-key", "new-value");
+ }
+ break;
+ }
+ case COMPARE:
+ {
+ int ret;
+ char *diffValue;
+
+ diffValue = NULL;
+ ret =
+ GNUNET_CONFIGURATION_get_value_string (cbData->cfgDiffs, section,
+ option, &diffValue);
+ if (NULL != diffValue)
+ {
+ if (ret == GNUNET_SYSERR || strcmp (diffValue, value) != 0)
+ cbData->status = 1;
+ }
+ else
+ cbData->status = 1;
+ GNUNET_free_non_null (diffValue);
+ break;
+ }
+#if 0
+ case PRINT:
+ if (NULL == cbData->section)
+ {
+ cbData->section = section;
+ printf ("\nSection: %s\n", section);
+ }
+ else if (strcmp (cbData->section, section) != 0)
+ {
+ cbData->section = section;
+ printf ("\nSection: %s\n", section);
+ }
+ printf ("%s = %s\n", option, value);
+#endif
+ default:
+ break;
+ }
+}
+
+
+static struct GNUNET_CONFIGURATION_Handle *
+editConfiguration (struct GNUNET_CONFIGURATION_Handle *cfg, int option)
+{
+ struct DiffsCBData diffsCB;
+
+ initDiffsCBData (&diffsCB);
+ diffsCB.cfgDiffs = GNUNET_CONFIGURATION_create ();
+
+ switch (option)
+ {
+ case EDIT_SECTION:
+ case EDIT_ALL:
+ case ADD_NEW_ENTRY:
+ diffsCB.callBackOption = option;
+ diffsCB.cfg = cfg;
+ GNUNET_CONFIGURATION_iterate (cfg, diffsCallBack, &diffsCB);
+ break;
+ case EDIT_NOTHING:
+ /* Do nothing */
+ break;
+ case ADD_NEW_SECTION:
+ {
+ int i;
+ char *key;
+
+ for (i = 0; i < 5; i++)
+ {
+ GNUNET_asprintf (&key, "key%d", i);
+ GNUNET_CONFIGURATION_set_value_string (cfg, "new-section", key,
+ "new-value");
+ GNUNET_CONFIGURATION_set_value_string (diffsCB.cfgDiffs, "new-section",
+ key, "new-value");
+ GNUNET_free (key);
+ }
+ break;
+ }
+ case REMOVE_SECTION:
+ break;
+ case REMOVE_ENTRY:
+ break;
+ default:
+ break;
+ }
+
+ return diffsCB.cfgDiffs;
+}
+
+/**
+ * Checking configuration diffs
+ */
+static int
+checkDiffs (struct GNUNET_CONFIGURATION_Handle *cfgDefault, int option)
+{
+ struct GNUNET_CONFIGURATION_Handle *cfg;
+ struct GNUNET_CONFIGURATION_Handle *cfgDiffs;
+ struct DiffsCBData cbData;
+ int ret;
+ char *diffsFileName;
+
+ initDiffsCBData (&cbData);
+
+ cfg = GNUNET_CONFIGURATION_create ();
+ /* load defaults */
+ GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (cfg, NULL));
+
+ /* Modify configuration and save it */
+ cfgDiffs = editConfiguration (cfg, option);
+ diffsFileName = GNUNET_DISK_mktemp ("gnunet-test-configurations-diffs.conf");
+ if (diffsFileName == NULL)
+ {
+ GNUNET_break (0);
+ GNUNET_CONFIGURATION_destroy (cfg);
+ GNUNET_CONFIGURATION_destroy (cfgDiffs);
+ return 1;
+ }
+ GNUNET_CONFIGURATION_write_diffs (cfgDefault, cfg, diffsFileName);
+ GNUNET_CONFIGURATION_destroy (cfg);
+
+ /* Compare the dumped configuration with modifications done */
+ cfg = GNUNET_CONFIGURATION_create ();
+ GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_parse (cfg, diffsFileName));
+ if (0 != remove (diffsFileName))
+ GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "remove", diffsFileName);
+ cbData.callBackOption = COMPARE;
+ cbData.cfgDiffs = cfgDiffs;
+ GNUNET_CONFIGURATION_iterate (cfg, diffsCallBack, &cbData);
+ if (1 == (ret = cbData.status))
+ {
+ FPRINTF (stderr, "%s",
+ "Incorrect Configuration Diffs: Diffs may contain data not actually edited\n");
+ goto housekeeping;
+ }
+ cbData.cfgDiffs = cfg;
+ GNUNET_CONFIGURATION_iterate (cfgDiffs, diffsCallBack, &cbData);
+ if ((ret = cbData.status) == 1)
+ FPRINTF (stderr, "%s",
+ "Incorrect Configuration Diffs: Data may be missing in diffs\n");
+
+housekeeping:
+#if 0
+ cbData.section = NULL;
+ cbData.callBackOption = PRINT;
+ printf ("\nExpected Diffs:\n");
+ GNUNET_CONFIGURATION_iterate (cfgDiffs, diffsCallBack, &cbData);
+ cbData.section = NULL;
+ printf ("\nActual Diffs:\n");
+ GNUNET_CONFIGURATION_iterate (cfg, diffsCallBack, &cbData);
+#endif
+ GNUNET_CONFIGURATION_destroy (cfg);
+ GNUNET_CONFIGURATION_destroy (cfgDiffs);
+ GNUNET_free (diffsFileName);
+ return ret;
+}
+