使用telnetlib,我从路由器获取路由信息,并希望使用模式提取广域网IP地址。telnet会话的输出在变量中,行之间用\n分隔
telnet会议上的东西。在
l= tn.read_all()
>>> l
'\r\nip -f inet addr\r\nexit\r\nadmin4asus@RT-AC68U:/tmp/home/root# ip -f inet addr\r\n1: lo: <LOOPBACK,MULTICAST,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN \r\n inet 127.0.0.1/8 brd 127.255.255.255 scope host lo\r\n2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000\r\n inet 24.6.29.214/21 brd 24.6.31.255 scope global eth0\r\n7: br0: <BROADCAST,MULTICAST,ALLMULTI,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN \r\n inet 192.168.11.1/24 brd 192.168.11.255 scope global br0\r\n8: tun21: <POINTOPOINT,MULTICAST,NOARP,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 100\r\n inet 10.8.0.1 peer 10.8.0.2/32 scope global tun21\r\nadmin4asus@RT-AC68U:/tmp/home/root# exit\r\n'
>>>
现在是我的密码。在
^{pr2}$我本以为只有一行匹配的打印出来。在
Found inet 24.6.29.214/21 brd 24.6.31.255 scope global eth0
但我到处都能找到。在
Found
Found ip -f inet addr
Found exit
Found admin4asus@RT-AC68U:/tmp/home/root# ip -f inet addr
Found 1: lo: <LOOPBACK,MULTICAST,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
Found inet 127.0.0.1/8 brd 127.255.255.255 scope host lo
Found 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
Found inet 24.6.29.214/21 brd 24.6.31.255 scope global eth0
Found 7: br0: <BROADCAST,MULTICAST,ALLMULTI,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
Found inet 192.168.11.1/24 brd 192.168.11.255 scope global br0
Found 8: tun21: <POINTOPOINT,MULTICAST,NOARP,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 100
Found inet 10.8.0.1 peer 10.8.0.2/32 scope global tun21
Found admin4asus@RT-AC68U:/tmp/home/root# exit
Found
我不明白为什么我的代码失败了。如果专家们有更好的方法(有解释),那就太好了。在
编辑:
Jan的回答肯定更像python,但我对python的缺乏使我更喜欢vk,这对我来说更容易理解。在我的意愿和意愿的意义上。在
我最后在'split'命令中使用'\r\n'和下面的代码。在
def get_asus_wan_ip():
"Gets WAN IP from ASUS router"
import telnetlib
import re
ASUS_IP= '192.168.1.1'
ASUS_USER= 'xxxxxxxx'
ASUS_PASS= 'yyyyyyyy'
tn = telnetlib.Telnet(ASUS_IP)
tn.read_until("login: ")
tn.write(ASUS_USER + "\n")
tn.read_until("Password: ")
tn.write(ASUS_PASS + "\n")
tn.write("ifconfig eth0\n")
tn.write("exit\n")
l= tn.read_all()
for line in l.split('\r\n'):
match= re.findall( r'^\s+inet addr:([0-9]+(?:\.[0-9]+){3}).*', line)
if match:
break
wan_ip= match[0]
return wan_ip
您可以通过列表理解来大幅缩减代码:
或者,如果您喜欢
^{pr2}$filter()
和lambda()
:输出:
Found inet 24.6.29.214/21 brd 24.6.31.255 scope global eth0
代码的问题:
1)}它可以是空的。所以在
re.findall
返回list
,因此它不能是{if
条件下使用它。在2)
re.findall
仅返回组(如果有)一些。如果你想要整条线,让第一组不捕捉。在相关问题 更多 >
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