genpcap.py 文件源码

def add_padding(pkt, packet_size):
    pad_len = packet_size - len(pkt)
    if pad_len < 0:
        print "Packet size [%d] is greater than expected %d" % (len(pkt), packet_size)
    else:
        pad = '\x00' * pad_len
        pkt = pkt/pad
    return pkt