'inet_addr'：使用 inet_pton() 或 InetPton() 代替或定义 _WINSOCK_DEPRECATED_NO_WARNINGS

Question

I'm using Visual Studio 2015 and attempting to compile code that has worked before I updated from VS 2013.

'inet_addr': Use inet_pton() or InetPton() instead or define _WINSOCK_DEPRECATED_NO_WARNINGS

in this code:

partner.sin_addr.s_addr = inet_addr(ip.c_str());

I attempted to use the functions mentioned but they were undefined. I attempted to define the macro in many different spots but nothing happened. Another thread said that I should include Ws2tcpip.h instead of WinSock2 & add Ws2_32.lib. I already have the library added, and when I used the include nothing happened. What is going on?!

Answer 1

Just to make the conversion clear. Let's say you have code using the deprecated inet_addr as in this example:

RecvAddr.sin_addr.s_addr = inet_addr("192.168.1.1");

It could be converted to the newer InetPton as follows:

InetPton(AF_INET, _T("192.168.1.1"), &RecvAddr.sin_addr.s_addr);

The _T macro prevents the " const char incompatible with PCWSTR " error.

Answer 2

The ip string can be converted to the in_addr structure with the InetPton function. It is used like this:

InetPton(AF_INET, strIP, &ipv4addr)

You need to include the "Ws2tcpip.h" header file, use the library "Ws2_32.lib" and DLL "Ws2_32.dll".

Answer 3

You can try

#pragma warning(disable:4996) 

for using inet_addr() .

Answer 4

确保在所有包含之前定义 _WINSOCK_DEPRECATED_NO_WARNINGS。