Programming

void dump(const unsigned char *data_buffer, const unsigned int length)
{
    unsigned char byte;
    unsigned int i, j;
    for(i=0; i < length; i++)
    {
        byte = data_buffer[i];
        printf("%02x ", data_buffer[i]);      // Display byte in hex.
        if(((i%16)==15) || (i==length-1))
        {
            for(j=0; j < 15-(i%16); j++)
            {
                printf("   ");
            }
            printf("| ");
            for(j=(i-(i%16)); j <= i; j++)
            {   // Display printable byte from line.
                byte = data_buffer[j];
                if((byte > 31) && (byte < 127)) // Outside printable char range
                {
                    printf("%c", byte);
                }
                else
                {
                    printf(".");
                }
            }
            printf("\r\n");           // End of the dump line (each line is 16 bytes)
        }
    }
    printf("\r\n");
}