from struct import *
from socket import *

def obex_genheader_byte_stream(opcode, byte_stream):
    length = htons(3 + len(byte_stream))
    return chr(opcode) + pack('h', length) + byte_stream

def obex_genheader_unicode(opcode, unistr):
    unistr = unistr + '\x00\x00'
    length = htons(3 + len(unistr))
    return chr(opcode) + pack('h', length) + unistr

def obex_connect(sockobj, target):
    if (len(target)):
        header = obex_genheader_byte_stream(0x46, target)
    else:
        header = ''
    length = htons(7 + len(header))
    cmd = chr(0x80) + pack('h', length) + chr(0x10) + chr(0) + pack('h', htons(1024)) + header
    sockobj.sendall(cmd)
    return True

def obex_get(sockobj, filename):
    header = obex_genheader_unicode(0x01, filename)
    length = htons(3 + len(header))
    cmd = chr(0x83) + pack('h', length) + header
    sockobj.sendall(cmd)
    return True

s = socket(AF_IRDA, SOCK_STREAM)
info = s.getsockopt(SOL_IRLMP, IRLMP_ENUMDEVICES, 1024)
list = info[4:]
addr = unpack('I', list[:4])[0]
s.connect((addr, "IrDA:OBEX"))
obex_connect(s, '')
response = s.recv(4096)
obex_get(s, "telecom/devinfo.txt".encode('utf-16be'))
response = s.recv(4096)
print response[6:]
s.close()