from pcapng import FileScanner, blocks
from pcapng.blocks import EnhancedPacket

def printdata(s):
    hex_bytes = [f"{i:02x}" for i in s]
    return str(hex_bytes)

with open(r'', 'rb') as fp:
    scanner = FileScanner(fp)
    source="linux"
    if source=="windows":
        out=21
        data_length_start=23
        start_of_data=27
    elif source=="linux":
        out=10
        data_length_start=36
        start_of_data=64

    for block in scanner:
        if isinstance(block, EnhancedPacket):
            real_length = block.packet_data[data_length_start+3] << 24 | block.packet_data[data_length_start+2] << 16 | block.packet_data[data_length_start+1] << 8 | block.packet_data[data_length_start]
            try:
                #print(block.packet_data[out])
                #if  (source=="windows" and block.packet_data[out]==0x02) or (source=="linux" and block.packet_data[out-1]==0x03):
                    #print("real_length=" + str(real_length))
                    #print("command=" + str(block.packet_data[start_of_data:]))
                    if 0xd6 == block.packet_data[start_of_data+12]:
                        print("set scan mode=" + printdata(block.packet_data[start_of_data+12+1:start_of_data+12+1 + real_length]))
                    elif 0xe5 == block.packet_data[start_of_data+12]:
                        print("set scan mode2=" + printdata(block.packet_data[start_of_data+12+1:start_of_data +12+1+ real_length]))
                    elif 0x2A == block.packet_data[start_of_data+12]:
                        print("send code=" + printdata(block.packet_data[start_of_data+12+1:start_of_data+12 +1+ real_length]))
                    elif 0xe1 == block.packet_data[start_of_data+12]:
                        print("color cal=" + printdata(block.packet_data[start_of_data+12+1:start_of_data +12+1+ real_length]))
                    elif 0xd8 == block.packet_data[start_of_data+12]:
                        print("cancel=" + printdata(block.packet_data[start_of_data+12+1:start_of_data+12+1 + real_length]))
                    elif 0x03 == block.packet_data[start_of_data+12]:
                        print("request sense=" + printdata(block.packet_data[start_of_data+12+1:start_of_data+12+1 + real_length]))
                    elif 0x12 == block.packet_data[start_of_data + 12]:
                        print("inquery code=" + printdata(
                            block.packet_data[start_of_data + 12 + 1:start_of_data + 12 + 1 + real_length]))

            except Exception as e:
                continue