sendto fails with a non administrator user with errorcode 10013

Question

Hi!

I found more source codes which are working like ping. My only problem with them is, that if i run the program with a non administrative user, then i get back errorcode 10013 which means : "An attempt was made to access a socket in a way forbidden by its access permissions." If i run the program with a user which is member of the administrator goup then it's working fine.

nResult = sendto (sock, pSendBuffer, sizeof (ICMPheader) + nMessageSize, 0, (SOCKADDR *)&dest, sizeof (SOCKADDR_IN));  
     ::GetSystemTime (&timeSend);  
     ++nPacketsSent;  
     if (nResult == SOCKET_ERROR)  
     {    
     cerr << endl << "An error occured in sendto operation: "  << "WSAGetLastError () = " << WSAGetLastError () << endl;  
                  }

Can anyone help me to solve this problem, or tell me why can't a non administrator user use this code? If not, then i would appriciate some code, which i can use with a user which isn't member of the administrator group.

Thanks in advance!

kampi

Answer 1

Is your socket of type SOCK_RAW? In that case this is by design:

RAW Socket Access Denied to Non-Admin Windows NT 4.0 and Windows 2000 Users

Answer 2

by any chance, is your code using a raw socket ? if this code really implements a PING request, then it should be using raw sockets.

due to security considerations (people that considered those considerations did not consider much, but that's for another post), raw sockets are only available for accounts which have administrator privileges.

Answer 3

If you want to implement ping functionality in your application on Windows, then you should have a look at the IcmpSendEcho2 function instead of trying to use raw sockets.