C++ boost::asio programming-detailed introduction to domain name resolution

#include "stdafx.h" #include "boost/asio.hpp" #include "boost/shared_ptr.hpp" #include "boost/thread.hpp" #include //使用字符串转换功能 using namespace std; using namespace boost::asio; #ifdef _MSC_VER #define _WIN32_WINNT 0X0501 //避免VC下编译警告 #endif //域名解析为IP //入参：域名，端口 //返回：ip地址 vector domain2ip(const char *domain,int port) { io_service ios; //创建resolver对象 ip::tcp::resolver slv(ios); //创建query对象 ip::tcp::resolver::query qry(domain,boost::lexical_cast(port));//将int型端口转换为字符串 //使用resolve迭代端点 ip::tcp::resolver::iterator it=slv.resolve(qry); ip::tcp::resolver::iterator end; vector ip; for(;it!=end;it++) { ip.push_back((*it).endpoint().address().to_string()); } return ip; } int _tmain(int argc, _TCHAR* argv[]) { vector ip=domain2ip("www.csdn.net",0); for(int i=0;i
        

         Copy after login