如何将IPv4地址转换成C＃中的整数？ [英] How to convert an IPv4 address into a integer in C#?

问题描述

我在寻找，将一个标准的IPv4地址转换为整数的函数。可用于该会得到相反的函数积分。

解决方案应该在C＃。

解决方案

  //的IPv4
INT intAddress = BitConverter.ToInt32（IPAddress.Parse（地址）.GetAddressBytes（），0）;
。字符串ip地址=新的ip地址（BitConverter.GetBytes（intAddress））的ToString（）;
 

编辑：正如在其他的答案指出，运行一个小端机器上的这个片段时，它会给出相反的顺序字节的标准定义。然而，问题要求一个整数和一个IP地址，不转换成标准整数格式之间的映射。要做到这一点，你必须考虑你正在运行的机器的字节序。

I'm looking for a function that will convert a standard IPv4 address into an Integer. Bonus points available for a function that will do the opposite.

Solution should be in C#.

解决方案

// IPv4
int intAddress = BitConverter.ToInt32(IPAddress.Parse(address).GetAddressBytes(), 0);
string ipAddress = new IPAddress(BitConverter.GetBytes(intAddress)).ToString();

EDIT: As noted in other answers, when running this snippet on a little endian machine, it'll give out the bytes in the reverse order as defined by the standard. However, the question asks for a mapping between an integer and an IP address, not converting to the standard integer format. To do so, you have to consider the endian-ness of the machine you're running on.

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