在ruby中将ip地址转换为32位整数 [英] convert ip address to 32 bit integer in ruby

问题描述

我正在尝试找到一种方法将Ruby地址中的IP地址转换为32位整数用于木偶模板。

I am trying to find a way to convert a ip address to a 32 bit integer in Ruby for a puppet template.

这就是我在转换中的方式bash。

This is how I did the conversion in bash.

root@ubuntu-server2:~# cat test.sh 
#!/bin/bash

#eth0 address is 10.0.2.15
privip=`ifconfig eth0 | grep "inet addr:" | cut -d : -f 2 | cut -d " " -f 1` ;

echo "Private IP: ${privip}" ;

# Turn it into unsigned 32-bit integer

ipiter=3 ;

for ipoctet in `echo ${privip} | tr . " "` ;
    do
    ipint=$(( ipint + ( ipoctet * 256 ** ipiter-- ) )) ;
    done ;

echo "Private IP int32: ${ipint}" ;

。

root@ubuntu-server2:~# bash test.sh 
Private IP: 10.0.2.15
Private IP int32: 167772687

任何帮助都将不胜感激。

Any help would be greatly appreciated.

推荐答案

require 'ipaddr'
ip = IPAddr.new "10.0.2.15"
ip.to_i                      # 167772687  

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