[Dev-C++] Internet programming again

[Ben M. <ili...@at...>]

adrian wrote:
> Доброго времени суток, ili...@at...!
> Вами, Ben Melikant <mailto:ili...@at...> было написано:
>
>
>> hello. I am trying to write that winsock app that i was working on 
>> the other day. I want to find the IP address of the computer that is 
>> connecting to the server. Here is the code for the server application:
>>
>> #include <winsock2.h>
>> #include <windows.h>
>> #include <iostream>
>> #include <fstream>
>> #include <string>
>>
>> using namespace std;
>>
>> int main ()
>> {
>> WSADATA wsadat;
>> SOCKET Socket, TempSocket = SOCKET_ERROR;
>> SOCKADDR_IN SockAddr;
>> SOCKADDR ConnAddr;
>> ifstream infile;
>> string filename = "C:\\counter.java";
>> char send_str[1], recv_str[6];
>> int a = 0, in_char, RetVal;
>>
>> if (WSAStartup (MAKEWORD(1,1), &wsadat) != 0)
>> {
>> cout << "WSAStartup failed!!!";
>> }
>>
>> Socket = socket(AF_INET, SOCK_STREAM, 0);
>> if (Socket == INVALID_SOCKET)
>> {
>> cout << "Socket creation failed!!!";
>> }
>>
>
>> SockAddr.sin_port = 50;
> Do U believe what 50 port is always free? Ports less than 1024 is 
> standard ports and may be allocated with another program. In any ways 
> you need another port when your port don't acceptabling. Also U need 
> write:
> SockAddr.sin_port=htons(50);//or another port number
>> SockAddr.sin_family = AF_INET;
> //-------------------------------------------------------
>> SockAddr.sin_addr.S_un.S_un_b.s_b1 = 192;
>> SockAddr.sin_addr.S_un.S_un_b.s_b2 = 168;
>> SockAddr.sin_addr.S_un.S_un_b.s_b3 = 1;
>> SockAddr.sin_addr.S_un.S_un_b.s_b4 = 102;
> this paragraph can be replaced with:
> SockAddr.sin_addr.s_addr=inet_addr("192.168.1.102");
> you can replace text in "" with any address U need.
>
>> if (bind (Socket, (SOCKADDR *)(&SockAddr), sizeof (SockAddr)) == 
>> SOCKET_ERROR)
>> {
>> cout << "Attempt to bind failed!!!";
>> }
>>
>> listen (Socket, 1);
>>
>> while (TempSocket == SOCKET_ERROR)
>> {
>> TempSocket = accept (Socket, &ConnAddr, sizeof (ConnAddr));
>> }
>> Socket = TempSocket;
>>
>> printf ("%s", ConnAddr.sa_data);
>> while (a <= filename.length())
>> {
>> send_str[0] = filename[a];
>> cout << send_str;
>> send (Socket, send_str, 1, 0);
>> ++a;
>> }
>>
>> infile.open (filename.c_str());
>> while (!infile.eof())
>> {
>> in_char = infile.get();
>> send_str[0] = in_char;
>> cout << send_str;
>> send (Socket, send_str, 1, 0);
>> }
>> infile.close();
>>
>>
>> while (RetVal == SOCKET_ERROR)
>> {
>> RetVal = recv (Socket, recv_str, 6, 0);
>> }
>> cout << recv_str;
>>
>> system ("pause");
>> return 0;
>> }
>> The problem text is highlighted in green. I get the error message 
>> "invalid conversion from 'unsigned int' to 'int *' initializing 
>> argument 3 of 'SOCKET accept (SOCKET, sockaddr*, int*)'. But how else 
>> am i supposed to pass the size of the structure to the method?
>>
> This error mean what U sent constant int in function what demand 
> pointer on int.
> IMHO U need write:
>
> ...
> int iSize=sizeof(SOCKADDR);
> ...=accept(Socket, (sockaddr_in*)&ConnAddr, &iSize);
>
> I don't saw green text 'cos I recieve mail it plain text format. IMHO 
> many another people also receiving messages in plain text format and 
> can't see color mark.
>
> С уважением, Чурин.
> P.S. Excuse me for my bad english - it's not my native language.
>
>
> Well, now i have another problem. How can I get the value of 
> ConnAddr.sa_data to print to the screen? When i try to print it using 
> printf("%s", ConnAddr.sa_data) it prints only a 2.