为什么getpeername在Windows下的c中变得不成功 [英] why the getpeername became unsucessful in c under windows

问题描述

我的编码:

my coding:

sockaddr *name =new sockaddr();
            int *isize;
                isize =(int*) sizeof(name);
            if( 0 == getpeername(acceptsocket,name,isize))
            {
                printf("\n\nThe peer sucessfult\n");
                printf("%s",name->sa_family);
            }
            else
            {
                printf("\nThe peer is unsucessful\n");
            }

我创建了简单的tcp客户端和服务器程序.
我想阅读客户信息.所以我尝试使用getpeername()函数..

但产生不成功..

什么是错误...

i created the simple tcp client and server program .
i want to read the client information. so i try to use the getpeername() function..

but it producing unsucessful..

what is the error...

推荐答案

您没有说收到什么错误.但是，您可能会猜到 WSAEFAULT [ ^ ]作为您的namelen值已设置为指针的大小(sizeof(name))而不是结构的大小(sizeof(*name)或sizeof(sockaddr)).

You do not say what error you are receiving. However, at a guess you may be getting WSAEFAULT[^] as your namelen value has been set to the size of the pointer (sizeof(name)) rather than the size of the structure (sizeof(*name) or sizeof(sockaddr)).

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