获取本机IP地址

bool GetLocalIP(char* ip){//1.初始化wsaWSADATA wsaData;int ret=WSAStartup(MAKEWORD(2,2),&wsaData);if (ret!=0){return false;}//2.获取主机名char hostname[256];ret=gethostname(hostname,sizeof(hostname));if (ret==SOCKET_ERROR){return false;}//3.获取主机ipHOSTENT* host=gethostbyname(hostname);if (host==NULL){return false;}//4.转化为char*并拷贝返回strcpy(ip,inet_ntoa(*(in_addr*)*host->h_addr_list));return true;}