NIOS UART and esp 8266

Hi again,

I changed my C code because it wasn't working good, so far my transmit/receive work's fine, the next step is to get the received message and compare it with a list of responses. but I couldn't do it. any ideas please??

# define RRDY 0x80
typedef volatile struct {
    char send;
    char rece;
    int lenS;
    int lenR;
}message;
void uart_receive_data(void)
{
    int count=0;
    message mess;
    alt_u8 status;
    status= IORD_ALTERA_AVALON_UART_STATUS(UART_BASE);
    while((status & RRDY)==RRDY    )    // check if reception ready
    {
        mess.rece=IORD_ALTERA_AVALON_UART_RXDATA(UART_BASE);//receive character
        printf("%c",mess.rece);   //print the character received
        status= IORD_ALTERA_AVALON_UART_STATUS(UART_BASE);    //update status register
        count++;
    }
}