static xmlNodePtr query_doc(dbi_result *result, char *query_name) { char *elt; unsigned long mylong; char buffer[100]; unsigned int i; xmlDocPtr doc = NULL; xmlNodePtr top_query = NULL, query_row = NULL; doc = xmlNewDoc(BAD_CAST "1.0"); top_query = xmlNewNode(NULL, BAD_CAST query_name); xmlDocSetRootElement(doc, top_query); while (dbi_result_next_row(result)) { query_row = xmlNewChild(top_query, NULL, BAD_CAST query_name,NULL); for (i=1; i < dbi_result_get_numfields(result) + 1; i++) { elt = strdup(dbi_result_get_field_name(result,i)); if (dbi_result_get_field_type_idx(result,i) == 3) { if (dbi_result_get_string_idx(result,i)) { xmlNewChild(query_row, NULL, BAD_CAST elt, BAD_CAST dbi_result_get_string_idx(result,i)); } } if (dbi_result_get_field_type_idx(result,i) == 1) { if (dbi_result_get_ulonglong_idx(result,i)) { mylong = dbi_result_get_ulonglong_idx(result,i); sprintf(buffer, "%ld", mylong); xmlNewChild(query_row, NULL, BAD_CAST elt, BAD_CAST buffer); } } } } return xmlDocGetRootElement(doc); xmlFreeDoc(doc); xmlCleanupParser(); }
static int cdbi_read_database_query (cdbi_database_t *db, /* {{{ */ udb_query_t *q, udb_query_preparation_area_t *prep_area) { const char *statement; dbi_result res; size_t column_num; char **column_names; char **column_values; int status; size_t i; /* Macro that cleans up dynamically allocated memory and returns the * specified status. */ #define BAIL_OUT(status) \ if (column_names != NULL) { sfree (column_names[0]); sfree (column_names); } \ if (column_values != NULL) { sfree (column_values[0]); sfree (column_values); } \ if (res != NULL) { dbi_result_free (res); res = NULL; } \ return (status) column_names = NULL; column_values = NULL; statement = udb_query_get_statement (q); assert (statement != NULL); res = dbi_conn_query (db->connection, statement); if (res == NULL) { char errbuf[1024]; ERROR ("dbi plugin: cdbi_read_database_query (%s, %s): " "dbi_conn_query failed: %s", db->name, udb_query_get_name (q), cdbi_strerror (db->connection, errbuf, sizeof (errbuf))); BAIL_OUT (-1); } else /* Get the number of columns */ { unsigned int db_status; db_status = dbi_result_get_numfields (res); if (db_status == DBI_FIELD_ERROR) { char errbuf[1024]; ERROR ("dbi plugin: cdbi_read_database_query (%s, %s): " "dbi_result_get_numfields failed: %s", db->name, udb_query_get_name (q), cdbi_strerror (db->connection, errbuf, sizeof (errbuf))); BAIL_OUT (-1); } column_num = (size_t) db_status; DEBUG ("cdbi_read_database_query (%s, %s): There are %zu columns.", db->name, udb_query_get_name (q), column_num); } /* Allocate `column_names' and `column_values'. {{{ */ column_names = calloc (column_num, sizeof (*column_names)); if (column_names == NULL) { ERROR ("dbi plugin: calloc failed."); BAIL_OUT (-1); } column_names[0] = calloc (column_num, DATA_MAX_NAME_LEN); if (column_names[0] == NULL) { ERROR ("dbi plugin: calloc failed."); BAIL_OUT (-1); } for (i = 1; i < column_num; i++) column_names[i] = column_names[i - 1] + DATA_MAX_NAME_LEN; column_values = calloc (column_num, sizeof (*column_values)); if (column_values == NULL) { ERROR ("dbi plugin: calloc failed."); BAIL_OUT (-1); } column_values[0] = calloc (column_num, DATA_MAX_NAME_LEN); if (column_values[0] == NULL) { ERROR ("dbi plugin: calloc failed."); BAIL_OUT (-1); } for (i = 1; i < column_num; i++) column_values[i] = column_values[i - 1] + DATA_MAX_NAME_LEN; /* }}} */ /* Copy the field names to `column_names' */ for (i = 0; i < column_num; i++) /* {{{ */ { const char *column_name; column_name = dbi_result_get_field_name (res, (unsigned int) (i + 1)); if (column_name == NULL) { ERROR ("dbi plugin: cdbi_read_database_query (%s, %s): " "Cannot retrieve name of field %zu.", db->name, udb_query_get_name (q), i + 1); BAIL_OUT (-1); } sstrncpy (column_names[i], column_name, DATA_MAX_NAME_LEN); } /* }}} for (i = 0; i < column_num; i++) */ udb_query_prepare_result (q, prep_area, (db->host ? db->host : hostname_g), /* plugin = */ "dbi", db->name, column_names, column_num, /* interval = */ (db->interval > 0) ? db->interval : 0); /* 0 = error; 1 = success; */ status = dbi_result_first_row (res); /* {{{ */ if (status != 1) { char errbuf[1024]; ERROR ("dbi plugin: cdbi_read_database_query (%s, %s): " "dbi_result_first_row failed: %s. Maybe the statement didn't " "return any rows?", db->name, udb_query_get_name (q), cdbi_strerror (db->connection, errbuf, sizeof (errbuf))); udb_query_finish_result (q, prep_area); BAIL_OUT (-1); } /* }}} */ /* Iterate over all rows and call `udb_query_handle_result' with each list of * values. */ while (42) /* {{{ */ { status = 0; /* Copy the value of the columns to `column_values' */ for (i = 0; i < column_num; i++) /* {{{ */ { status = cdbi_result_get_field (res, (unsigned int) (i + 1), column_values[i], DATA_MAX_NAME_LEN); if (status != 0) { ERROR ("dbi plugin: cdbi_read_database_query (%s, %s): " "cdbi_result_get_field (%zu) failed.", db->name, udb_query_get_name (q), i + 1); status = -1; break; } } /* }}} for (i = 0; i < column_num; i++) */ /* If all values were copied successfully, call `udb_query_handle_result' * to dispatch the row to the daemon. */ if (status == 0) /* {{{ */ { status = udb_query_handle_result (q, prep_area, column_values); if (status != 0) { ERROR ("dbi plugin: cdbi_read_database_query (%s, %s): " "udb_query_handle_result failed.", db->name, udb_query_get_name (q)); } } /* }}} */ /* Get the next row from the database. */ status = dbi_result_next_row (res); /* {{{ */ if (status != 1) { if (dbi_conn_error (db->connection, NULL) != 0) { char errbuf[1024]; WARNING ("dbi plugin: cdbi_read_database_query (%s, %s): " "dbi_result_next_row failed: %s.", db->name, udb_query_get_name (q), cdbi_strerror (db->connection, errbuf, sizeof (errbuf))); } break; } /* }}} */ } /* }}} while (42) */ /* Tell the db query interface that we're done with this query. */ udb_query_finish_result (q, prep_area); /* Clean up and return `status = 0' (success) */ BAIL_OUT (0); #undef BAIL_OUT } /* }}} int cdbi_read_database_query */