Question

【VC++】socket小程序获取连接者的IP问题

m_remoteAddr是sockaddr_in类型的当使用m_connectSock = accept(m_socket,(SOCKADDR*)&m_remoteAddr,&len);接受连接之后m_remoteAddr应该存放的是客户端的IP地址吧如何把这个IP地址转换成字符串形式呢？我试过CString str;str.Format("%d.%d.%d.%d",m_remoteAddr.sin_addr.s_b1,m_remoteAddr.sin_addr.s_b2,m_remoteAddr.sin_addr.s_b3,m_remoteAddr.sin_addr.s_b4);但是提示error C2039: 's_b1' : is not a member of 'in_addr'有什么解决方法呢？

Answer 1

size = sizeof(sockaddr);
newfd = accept(sockfd,(struct sockaddr*)&new_add,&size); printf("%s\n",inet_ntoa(new_add.sin_addr));//转换成字符IP

Answer 2

inet_ntoa(m_remoteAddr.sin_addr);