How to get the current ip address in C++ [duplicate]

This question already has answers here: Closed 11 years ago.

Possible Duplicate:

get global ip address

I 开发者_StackOverflow中文版am wondering is there anyway to get the ipv4 address easily?

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For the local computer:

Get the IP address of the machine

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It depends on the OS your program running on.

For Windows see http://msdn.microsoft.com/en-us/library/aa365915%28v=VS.85%29.aspx

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Try Beej's Guide to Network Programming at http://beej.us/guide/bgnet/

There you may find an answer for your platform and the case of multiple addresses.

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Actually C++ standard library does not provide any function to get the ip address of a system. The api for that must be provided by the OS on which you are working.

From your question what I understood is you are working on something but your IP keep changing because it is assigned by DHCP, well I may be wrong.

However, for linux you would like to google for inet_ntop

Check this out:
#include <arpa/inet.h>
const char *inet_ntop(int af, const void *src, char *dst, socklen_t size);