Fix strndup of NULL, add auto length for SCPI_ErrorPushEx

Jan Breuer

2016-04-24 1f77a03fa02b0cdbaa878cd7015838638eedc4a8

 libscpi/test/test_parser.c

@@ -186,6 +186,9 @@
#define SCPI_ERROR_QUEUE_SIZE 4
static scpi_error_t scpi_error_queue_data[SCPI_ERROR_QUEUE_SIZE];

#define SCPI_ERROR_INFO_HEAP_SIZE 100
static char error_info_heap[SCPI_ERROR_INFO_HEAP_SIZE];

static int init_suite(void) {
    SCPI_Init(&scpi_context,
            scpi_commands,
@@ -193,8 +196,11 @@
            scpi_units_def,
            "MA", "IN", NULL, "VER",
            scpi_input_buffer, SCPI_INPUT_BUFFER_LENGTH,
            scpi_error_queue_data, SCPI_ERROR_QUEUE_SIZE,
            NULL, 0);
            scpi_error_queue_data, SCPI_ERROR_QUEUE_SIZE);
#if USE_DEVICE_DEPENDENT_ERROR_INFORMATION && !USE_MEMORY_ALLOCATION_FREE
    SCPI_InitHeap(&scpi_context,
            error_info_heap, SCPI_ERROR_INFO_HEAP_SIZE);
#endif

    return 0;
}