IPV6连接错误10049（A-GAIN！）

Question

所以我配置了Windows 8防火墙允许IPV6出站和入站连接，作为预防措施，但每当我尝试连接到要么是远程主机或到我自己的机器使用环回地址（与同时运行的ipv6服务器应用程序）连接功能失败，错误10049，无论我选择哪个端口。这是网络配置问题吗？ IP4工作得很好。

#include "stdafx.h" 
#include <iostream> 
#include <iostream> 
#include <string> 
#include <stdlib.h> 


#ifndef UNICODE 
#define UNICODE 
#endif 

#define WIN32_LEAN_AND_MEAN 






#include <winsock2.h> 
#include <WS2tcpip.h> 
#include <ws2ipdef.h> 
#include <iphlpapi.h> 
#include <IPTypes.h> 


#pragma comment(lib, "ws2_32.lib") 
#pragma comment(lib,"iphlpapi.lib") 



using namespace std; 


static int MAXPENDING = 5; 

void set_interface(SOCKET s, DWORD Index); 






int main(int argc,char* argv[]) 
{ 

    WSADATA wsaData; 
    int Result; 
    int optv = 1; 
    char *optval = (char*)&optv; 
    int optlen = sizeof(optval); 
    DWORD Index = 22;  
    bool connected = false; 
    string exit = "quit"; 
    string name; 
    sockaddr_in6 c_addr; 
    c_addr.sin6_family = AF_INET6; 

    char buffer[1024]; 







    Result = WSAStartup(MAKEWORD(2, 2), &wsaData); 
    if (Result != NO_ERROR) { 
     printf("WSAStartup function failed with error: %d\n", GetLastError()); 
     return 0; 
    } 





    SETUP: 

     SOCKET connector; 
     connector = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); 
     if (connector == INVALID_SOCKET) { 
      wprintf(L"socket function failed with error: %ld\n", WSAGetLastError()); 
      closesocket(connector); 
      return 1; 
     } 









     cout << "Enter host name(URL): "; 
     cin >> name; 
     cout << endl; 



     char *hostname = const_cast<char*>(name.c_str()); 

     if(inet_pton(AF_INET6,hostname,&c_addr.sin6_addr)<0){ 
      printf("InetPton() function failed with error: %d/n",GetLastError()); 
      closesocket(connector); 
      return 1; 
     } 





     string p; 
     char *hostport; 
     int p0rt; 
     cout << "Enter the port number you wish to connect on: " ; 
     cin >> p; 
     cout << endl; 
     hostport = const_cast<char*>(p.c_str()); 
     p0rt = atoi(hostport); 

     if(!(0 < p0rt && p0rt < 65,536)){ 
      cout << "Error: port number must be greater than 0 and less than 65,536. " << endl; 
      cout << endl; 
      cout << "Re-enter the port number you wish to connect on: " ; 
      cin >> p; 
      cout << endl; 
      hostport = const_cast<char*>(p.c_str()); 
      p0rt = atoi(hostport); 

     }else{ 
      c_addr.sin6_port = htons(p0rt); 
     } 








    if(connect(connector,(sockaddr*)&c_addr,sizeof(c_addr))<0){ 
      printf("Connect failed with error: %d\n",GetLastError()); 
      string cmd; 
      cout << endl; 
      cout <<"Try again? Type 'y' to reattempt connection or type any other key to exit: "; 
      cin >> cmd; 
      cout << endl; 
      if(cmd=="y"){ 

       goto SETUP; 
      }else { 
       goto QUIT; 
      } 


    }else{ 
     connected = true; 
     cout << "Connected to host " << hostname << " on port " << c_addr.sin6_port << endl; 
     cout << "Type 'quit' to exit the program " << endl; 
    } 

    while(connected==true){ 

     int nbr = 0; 


     cout << endl; 
     cout << ">"; 
     scanf("%s",buffer); 
     cout << endl; 

     string str(buffer); 

     if(str==exit){ 

      connected = false; 
      goto QUIT; 
     } 




     long nbs = send(connector,buffer,sizeof(buffer),0); 
     if(nbs < 0){ 
      printf("send() failed", GetLastError()); 
      goto QUIT; 
     } 

     while(nbr < nbs){ 
      nbr = recv(connector,buffer,sizeof(buffer),0); 
      if(nbr < 0){ 
       printf("recv() failed", GetLastError()); 
       goto QUIT; 

      }else if(nbr==0){ 
       printf("recv() failed: connection closed prematurely", GetLastError()); 
       goto QUIT;    
      }else if(nbr > 0){ 
       cout << endl; 
       cout << ">> "; 
       printf(buffer); 
       cout << endl; 
      } 

     } 



    } 


    QUIT: 

     if (closesocket(connector) == SOCKET_ERROR) { 
      printf("closesocket function failed with error: %ld\n", GetLastError()); 
      WSACleanup(); 
      return 1; 
     } 


    WSACleanup(); 

    return 0; 




}; 


void set_interface(SOCKET s, DWORD Index){ 




     MIB_IF_ROW2 T2; 
     NET_LUID ID; 
     DWORD ptbuflen = (DWORD)sizeof(T2); 


     ConvertInterfaceIndexToLuid(Index,&ID); 
     T2.InterfaceLuid = ID; 
     GetIfEntry2(&T2); 



     if(WSAIoctl(s,SIO_ASSOCIATE_HANDLE,&T2,ptbuflen,NULL,0,0,NULL,NULL)>0){ 
      printf("WSAIoctl() function failed with error: %d\n", GetLastError()); 
      closesocket(s); 


     } 

     if(WSAIoctl(s,SIO_TRANSLATE_HANDLE,&T2,ptbuflen,NULL,0,0,NULL,NULL)>0){ 
      printf("WSAIoctl() function failed with error: %d\n", GetLastError()); 
      closesocket(s); 


     } 

}; 

Answer 1

您需要将您未使用的部分置零。先将零件清零，然后填写你需要的零件。

如果用户第一次无法输入有效的端口，则不会验证第二次输入的新端口，而且您也没有将该第二端口值分配给。您应该循环进行验证，然后将最终接受的值分配给。

如果您应该使用getaddrinfo()代替，则正在使用inet_pton()。 inet_pton()仅将IP地址字符串转换为其二进制格式。它不会将主机名解析为IP。 getaddrinfo()代替该分辨率，并且还支持转换IP地址字符串（指定参数hints中的AI_NUMERICHOST标志以获得该行为）。