Python perrorの例

コード例 #1

ファイル: createdb.py プロジェクト: AssuRFID/assurpid

def get_tag():
    context = nfc.init()
    pnd = nfc.open(context)
    if pnd is None:
        print('ERROR: Unable to open NFC device.')
        exit()
    if nfc.initiator_init(pnd) < 0:
        nfc.perror(pnd, "nfc_initiator_init")
        print('ERROR: Unable to init NFC device.')
        exit()

    # Declare modulations
    nmMifare = nfc.modulation()
    nmMifare.nmt = nfc.NMT_ISO14443A
    nmMifare.nbr = nfc.NBR_106

    nt = nfc.target()
    # Wait for tag
    ret = nfc.initiator_select_passive_target(pnd, nmMifare, 0, 0, nt)
    # Convert raw uid to hex, then trim to length (2*nt.nti.nai.szUidLen)
    tag = ''.join(format(x, '02x') for x in nt.nti.nai.abtUid)[:2*nt.nti.nai.szUidLen]
    nfc.close(pnd)
    nfc.exit(context)

    # Return UID
    return tag 

コード例 #2

ファイル: nfc-protype.py プロジェクト: gabicavalcante/nfc-prototype

def nfcInitListen(): 
    """ Open nfc device and set opened NFC device to initiator mode: 
    """ 

    global pnd, context
    pnd = nfc.open(context)

    if pnd is None:
        print('ERROR: Unable to open NFC device.')
        sys.exit(1)

    if nfc.initiator_init(pnd) < 0:
        nfc.perror(pnd, "nfc_initiator_init")
        print('ERROR: Unable to init NFC device.')
        sys.exit(1)

    print('NFC reader: %s opened' % nfc.device_get_name(pnd))

コード例 #3

ファイル: nfc_list.py プロジェクト: Inter-Actief/JulianaNFC

def init_reader(callback):
    context = nfc.init()

    devs =  nfc.list_devices(context, 16)

    if devs:
        for dev in devs:
            pnd = nfc.open(context, dev)

            if pnd:
                if nfc.initiator_init(pnd) < 0:
                    nfc.perror(pnd, "nfc_initator_init")
                    nfc.close(pnd)
                else:
                    reader = NFCReader(context, pnd, callback)
                    reader.daemon = True
                    reader.start()
                
    else:
        print("failed to find a NFC device")

コード例 #4

def init_reader(callback):
    context = nfc.init()

    devs = nfc.list_devices(context, 16)

    if devs:
        for dev in devs:
            pnd = nfc.open(context, dev)

            if pnd:
                if nfc.initiator_init(pnd) < 0:
                    nfc.perror(pnd, "nfc_initator_init")
                    nfc.close(pnd)
                else:
                    reader = NFCReader(context, pnd, callback)
                    reader.daemon = True
                    reader.start()

    else:
        print("failed to find a NFC device")

コード例 #5

    def open_device(self):
        # return if device is already initialized
        if self.device:
            return
        # make sure everything is shut down before initalizing
        self.shutdown()
        
        self.context = nfc.init()
        print("{} uses libnfc {}".format(sys.argv[0], nfc.__version__))

        connstrings = nfc.list_devices(self.context, max_device_count)
        szDeviceFound = len(connstrings)
        if szDeviceFound == 0:
            raise Exception("No NFC reader found!")
        
        for i in range(szDeviceFound):
            self.device = nfc.open(self.context, connstrings[i])
            if self.device is None:
                continue
            if(nfc.initiator_init(self.device)<0):
                nfc.perror(self.device, "nfc_initiator_init")
                raise Exception("Init of device failed!")
            print("NFC reader:", nfc.device_get_name(self.device), "opened")
            break

コード例 #6

def try_read():
    if nfc.initiator_select_passive_target(pnd, nmMifare, 0, 0, nt) > -1:
        return read_sector(7)


@atexit.register
def close():
    nfc.close(pnd)
    nfc.exit(context)


accessBits = compute_access_bits(c1, c2, c3)

context = nfc.init()
pnd = nfc.open(context)

if pnd is None:
    raise Exception('ERROR: Unable to open NFC device.')

if nfc.initiator_init(pnd) < 0:
    nfc.perror(pnd, "nfc_initiator_init")
    raise Exception('ERROR: Unable to init NFC device.')

print('NFC reader: %s opened' % nfc.device_get_name(pnd))

nmMifare = nfc.modulation()
nmMifare.nmt = nfc.NMT_ISO14443A
nmMifare.nbr = nfc.NBR_106

nt = nfc.target()

コード例 #7

ファイル: main.py プロジェクト: AssuRFID/assurpid

# Ensure ^C doesn't corrupt/leave anything broken.
signal.signal(signal.SIGINT, signal_handler)

conn = sqlite3.connect('/var/db/assurpid/assurpid.db')
output('opened database successfully')

output('libnfc version: ' + nfc.__version__)

context = nfc.init()
pnd = nfc.open(context)
if pnd is None:
    output('ERROR: Unable to detect RFID sensor (run this as root).')
    exit()

if nfc.initiator_init(pnd) < 0:
    nfc.perror(pnd, "nfc_initiator_init")
    output('ERROR: Unable to init RFID sensor.')
    exit()

output('NFC reader: ' + nfc.device_get_name(pnd) + 'opened')

nmMifare = nfc.modulation()
nmMifare.nmt = nfc.NMT_ISO14443A
nmMifare.nbr = nfc.NBR_106

nt = nfc.target()

admin_switch = False

while True:
    if not admin_switch:

コード例 #8

ファイル: nfc-dep-target.py プロジェクト: akito45/nfc-bindings

    print("Unable to open NFC device.")
    nfc.exit(context)
    exit()

print("NFC device: %s opened" % nfc.device_get_name(pnd))

#signal(SIGINT, stop_dep_communication);

print("NFC device will now act as: ")
#print_nfc_target(&nt, false)

print("Waiting for initiator request...")
abtRx = nfc.target_init(pnd, nt, MAX_FRAME_LEN, 0)
szRx = len(abtRx)
if szRx < 0:
    nfc.perror(pnd, "nfc_target_init")
    nfc.close(pnd)
    nfc.exit(context)
    exit()


print("Initiator request received. Waiting for data...\n")
abtRx = nfc.target_receive_bytes(pnd, MAX_FRAME_LEN, 0)
szRx = len(abtRx)
if szRx < 0:
    nfc.perror(pnd, "nfc_target_receive_bytes")
    nfc.close(pnd)
    nfc.exit(context)
    exit()

#abtRx[szRx] = '\0'

コード例 #9

ファイル: nfc-anticol.py プロジェクト: schafei/nfc-bindings

        print('Received bits: ', end='')
        nfc.print_hex(pbtRx, szRx)

    # Succesful transfer
    return True, pbtRx


context = nfc.init()
pnd = nfc.open(context)
if pnd is None:
    print('ERROR: Unable to open NFC device.')
    nfc.exit(context)
    exit()

if (nfc.initiator_init(pnd) < 0):
    nfc.perror(pnd, "nfc_initiator_init")
    nfc.close(pnd)
    nfc.exit(context)
    exit()

if (nfc.device_set_property_bool(pnd, nfc.NP_HANDLE_CRC, False) < 0):
    nfc.perror(pnd, "nfc_device_set_property_bool")
    nfc.close(pnd)
    nfc.exit(context)
    exit()

if (nfc.device_set_property_bool(pnd, nfc.NP_EASY_FRAMING, False) < 0):
    nfc.perror(pnd, "nfc_device_set_property_bool")
    nfc.close(pnd)
    nfc.exit(context)
    exit()

コード例 #10

ファイル: nfc-anticol.py プロジェクト: akito45/nfc-bindings

        nfc.print_hex(pbtRx, szRx)

    # Succesful transfer
    return True, pbtRx



context = nfc.init()
pnd = nfc.open(context)
if pnd is None:
    print('ERROR: Unable to open NFC device.')
    nfc.exit(context)
    exit()

if(nfc.initiator_init(pnd)<0):
    nfc.perror(pnd, "nfc_initiator_init")
    nfc.close(pnd)
    nfc.exit(context)
    exit()

if (nfc.device_set_property_bool(pnd, nfc.NP_HANDLE_CRC, False) < 0):
    nfc.perror(pnd, "nfc_device_set_property_bool")
    nfc.close(pnd)
    nfc.exit(context)
    exit()

if (nfc.device_set_property_bool(pnd, nfc.NP_EASY_FRAMING, False) < 0):
    nfc.perror(pnd, "nfc_device_set_property_bool")
    nfc.close(pnd)
    nfc.exit(context)
    exit()

コード例 #11

ファイル: nfc-dep-target.py プロジェクト: schafei/nfc-bindings

    print("Unable to open NFC device.")
    nfc.exit(context)
    exit()

print("NFC device: %s opened" % nfc.device_get_name(pnd))

#signal(SIGINT, stop_dep_communication);

print("NFC device will now act as: ")
#print_nfc_target(&nt, false)

print("Waiting for initiator request...")
abtRx = nfc.target_init(pnd, nt, MAX_FRAME_LEN, 0)
szRx = len(abtRx)
if szRx < 0:
    nfc.perror(pnd, "nfc_target_init")
    nfc.close(pnd)
    nfc.exit(context)
    exit()

print("Initiator request received. Waiting for data...\n")
abtRx = nfc.target_receive_bytes(pnd, MAX_FRAME_LEN, 0)
szRx = len(abtRx)
if szRx < 0:
    nfc.perror(pnd, "nfc_target_receive_bytes")
    nfc.close(pnd)
    nfc.exit(context)
    exit()

#abtRx[szRx] = '\0'
print("Received: %s\n", abtRx)