动态域名解析-winsock

[maoxing63570]

#include "winsock2.h"
#include "stdio.h"
#pragma comment(lib,"ws2_32.lib");
void main ()
{
	WORD wVersionRequested;
	WSADATA wsaData;
	int err;
	char p[40]="maoxing63570.3322.org";//用希网做的域名映射，映射这里我保证ip的正确性
	hostent *hs;
	wVersionRequested=MAKEWORD(1,1);
	err=WSAStartup(wVersionRequested,&wsaData);
	if(err!=0)
		return;
	if(LOBYTE(wsaData.wVersion)!=1||HIBYTE(wsaData.wVersion)!=1)
	{
		WSACleanup();
		return;
	}
	SOCKET sockClient=socket(AF_INET,SOCK_STREAM,0);
	SOCKADDR_IN sockaddr;
	hs=gethostbyname(p);
	if(hs==NULL)
	{
		printf("Get hostname failed with errors %d",GetLastError());
		return;
	}
	sockaddr.sin_addr.S_un.S_addr=inet_addr(hs->h_addr_list[0]);
  sockaddr.sin_family=AF_INET;
	sockaddr.sin_port=htons(8000);
	connect(sockClient,(SOCKADDR *)&sockaddr,sizeof(SOCKADDR));
	char recvbuf[100];
	recv(sockClient,recvbuf,strlen(recvbuf)+1,0);
	printf("%s\n",recvbuf);
	send(sockClient,"Client connect successed!",strlen("Client connect successed!")+1,0);
	closesocket(sockClient);
	WSACleanup();
}

为什么解析后IP是错误的呢？在线等答案。

[Defonds]

这个要用的着。关注。