save the output from scapy to txt file

[evilcode1]

hello all ...
some one is deleted my membership and my topic i don't know why ??
so ia'm new in python i want to modify this code after run and get the result on terminal save them in a .txt file

this is my code ...

lena = int(raw_input("Enter Number : "))
print(lena)

logging.basicConfig(format='%(asctime)s %(levelname)-5s %(message)s', datefmt='%Y-%m-%d %H:%M:%S', level=logging.DEBUG)
logger = logging.getLogger(__name__)

def long2net(arg):
    if (arg <= 0 or arg >= 0xFFFFFFFF):
        raise ValueError("illegal netmask value", hex(arg))
    return 32 - int(round(math.log(0xFFFFFFFF - arg, 2)))

def to_CIDR_notation(bytes_network, bytes_netmask):
    network = scapy.utils.ltoa(bytes_network)
    netmask = long2net(bytes_netmask)
    net = "%s/%s" % (network, netmask)
    if netmask < 16:
        logger.warn("%s is too big. skipping" % net)
        return None

    return net

def scan_and_print_neighbors(net, interface, timeout=1):
    logger.info("arping %s on %s" % (net, interface))
    try:
        ans, unans = scapy.layers.l2.arping(net, iface=interface, timeout=timeout, verbose=True)
        for s, r in ans.res:
            line = r.sprintf("%Ether.src%  %ARP.psrc%")
            try:
                hostname = socket.gethostbyaddr(r.psrc)
                line += " " + hostname[0]
            except socket.herror:
                # failed to resolve
                pass
            logger.info(line)
    except socket.error as e:
        if e.errno == errno.EPERM:     # Operation not permitted
            logger.error("%s. Did you run as root?", e.strerror)
        else:
            raise
if __name__ == "__main__":
    if lena == 1:
        for network, netmask, _, interface, address in scapy.config.conf.route.routes:
            # skip loopback network and default gw
            if network == 0 or interface == 'lo' or address == '127.0.0.1' or address == '0.0.0.0':
                continue

            if netmask <= 0 or netmask == 0xFFFFFFFF:
                continue

            net = to_CIDR_notation(network, netmask)
            if interface != scapy.config.conf.iface:
                # see http://trac.secdev.org/scapy/ticket/537
                logger.warn("skipping %s because scapy currently doesn't support arping on non-primary network interfaces", net)
                #continue
            if net:
                scan_and_print_neighbors(net, interface)
                repr(network)
                text_file = open("Output.txt", "w")
                text_file.write(repr(network))

            elif lena == 3 :
                print("Bye Bye  ")

[buran]

some one is deleted my membership and my topic i don't know why ??

Sorry, due to incident with the server last night, forum had to be reverted to a backup and as a result information from the last few hours was lost.

As to your question - currently your scan_and_print_neighbors is only writing to log file. You have two options - (i) this function could return the information you want (at the moment it returns the default None) and you can write this info to a file in the if __name__ == '__main__' block or (ii) you can pass this info to another function that will write it to file.
combination of two is also possible - function from (i) that you call in the if block.

[evilcode1]

some one is deleted my membership and my topic i don't know why ??

Sorry, due to incident with the server last night, forum had to be reverted to a backup and as a result information from the last few hours was lost.

As to your question - currently your scan_and_print_neighbors is only writing to log file. You have two options - (i) this function could return the information you want (at the moment it returns the default None) and you can write this info to a file in the if __name__ == '__main__' block or (ii) you can pass this info to another function that will write it to file.
combination of two is also possible - function from (i) that you call in the if block.

how i can do that ? i m new at python can show my how the code will become !

[Larz60+]

you can redirect stdout:

if __name__ == "__main__":
    import sys
    sys.stdout = open('textout.txt', 'w')
    ... rest of your code here ...
    sys.stdout.close()

[evilcode1]

you can redirect stdout:

if __name__ == "__main__":
    import sys
    sys.stdout = open('textout.txt', 'w')
    ... rest of your code here ...
    sys.stdout.close()

so it should be like this?

if __name__ == "__main__":
	import sys
	sys.stdout = open('textout.txt', 'w')
    if lena == 1:
        for network, netmask, _, interface, address in scapy.config.conf.route.routes:
            # skip loopback network and default gw
            if network == 0 or interface == 'lo' or address == '127.0.0.1' or address == '0.0.0.0':
                continue
                
            if netmask <= 0 or netmask == 0xFFFFFFFF:
                continue
        
        net = to_CIDR_notation(network, netmask)
        if interface != scapy.config.conf.iface:
            # see http://trac.secdev.org/scapy/ticket/537
            logger.warn("skipping %s because scapy currently doesn't support arping on non-primary network interfaces", net)
            #continue
        if net:
            scan_and_print_neighbors(net, interface)
            repr(network)
            
    sys.stdout.close()
    elif lena == 3 :
        print("Bye Bye  ")

---

@Larz60+
thank u very much it's working <3

[Larz60+]

don't you want the close after:

elif lena == 3 :

[evilcode1]

hello all i still get this error :(
i think it's from sys.stdout.close() but im new in python i read al lot about this problem but i can't solve it :( can u help me

this is my code :

logging.basicConfig(format='%(asctime)s %(levelname)-5s %(message)s', datefmt='%Y-%m-%d %H:%M:%S', level=logging.DEBUG)
logger = logging.getLogger(__name__)


def long2net(arg):
	if (arg <= 0 or arg >= 0xFFFFFFFF):
		raise ValueError("illegal netmask value", hex(arg))
	return 32 - int(round(math.log(0xFFFFFFFF - arg, 2)))


def to_CIDR_notation(bytes_network, bytes_netmask):
	network = scapy.utils.ltoa(bytes_network)
	netmask = long2net(bytes_netmask)
	net = "%s/%s" % (network, netmask)
	if netmask < 16:
		logger.warn("%s is too big. skipping" % net)
		return None

	return net


def scan_and_print_neighbors(net, interface, timeout=1):
	logger.info("arping %s on %s" % (net, interface))
	try:
		ans, unans = scapy.layers.l2.arping(net, iface=interface, timeout=timeout, verbose=True)
		for s, r in ans.res:
			line = r.sprintf("%Ether.src%  %ARP.psrc%")
			try:
				hostname = socket.gethostbyaddr(r.psrc)
				line += " " + hostname[0]
			except socket.herror:
				# failed to resolve
				pass
			logger.info(line)
	except socket.error as e:
		if e.errno == errno.EPERM:     # Operation not permitted
			logger.error("%s. Did you run as root?", e.strerror)
		else:
			raise

while True:
    lena = int(raw_input("Enter Number : "))
    print(lena)

     
    if __name__ == "__main__":
        import sys
        import os 
        import time
        
        sys.stdout = open('textout.txt', 'w')
        if lena == 1:
            for network, netmask, _, interface, address in scapy.config.conf.route.routes:
                # skip loopback network and default gw
                if network == 0 or interface == 'lo' or address == '127.0.0.1' or address == '0.0.0.0':
                    continue
                    
                if netmask <= 0 or netmask == 0xFFFFFFFF:
                    continue
            
            net = to_CIDR_notation(network, netmask)
            if interface != scapy.config.conf.iface:
                # see http://trac.secdev.org/scapy/ticket/537
                logger.warn("skipping %s because scapy currently doesn't support arping on non-primary network interfaces", net)
                
            if net:
                scan_and_print_neighbors(net, interface)
                sys.stdout.close()
                
                os.system("awk 'NR > 2 {print $2}' textout.txt > last.txt")
                
                os.system("python detect_doublepulsar_smb.py --file last.txt")
                
        elif lena == 3 :
            print("bye Bye")
            break

[wavic]

You are overwriting the sys.stdout. Choose another name for the object.

[evilcode1]

You are overwriting the sys.stdout. Choose another name for the object.

sorry which object ? can u explain more in codes

[Larz60+]

The intent is to overwrite sys.stdout -- This will redirect text to the file
remove the close

also make sure you imported sys