Sniphfer on s++ and Winsock2

[Bogopo]

I'm trying to create my own book, that's what I've done. The only thing I can't do to win, can tell you what's wrong. WSAGetLastError = 10038

#include <conio.h>
#include <stdio.h>
#include <winsock2.h>
void main()
{
struct sockaddr saddr;
int sa_size,data_size;
char Buffer[1024];
WSADATA wsaData;
struct sockaddr_in sa;

int Result = WSAStartup(MAKEWORD(2, 2), &amp;wsaData);
if (Result != 0){
    cout &lt;&lt; "WSA strtup failed " &lt;&lt; Result &lt;&lt; endl;
}

char hostname[100];
int in = 0;
WSADATA wsa;
if (gethostname(hostname, sizeof(hostname)) == SOCKET_ERROR){
    cout &lt;&lt; "Unable to get hostname" &lt;&lt; endl;
    exit(1);
}
struct hostent *local = gethostbyname(hostname);
if (local == NULL){
    cout &lt;&lt; "Got an error " &lt;&lt; endl;
    exit(1);
}
SOCKET raw_sock;
cout &lt;&lt; "Host name: " &lt;&lt; hostname &lt;&lt; endl;
raw_sock = socket(PF_INET, SOCK_RAW, IPPROTO_TCP);
if (raw_sock&lt;0){
    cout &lt;&lt; "Unable to create raw socket: " &lt;&lt; endl;
    exit(1);
}
in_addr addr;
cout &lt;&lt; "RAW socket has been created" &lt;&lt; endl;
cout &lt;&lt; "Available Network Interfaces" &lt;&lt; endl;
for (int i = 0; local-&gt;h_addr_list[i] != 0; ++i){
    memcpy(&amp;addr, local-&gt;h_addr_list[i], sizeof(struct in_addr));
    cout &lt;&lt; "Interface [ " &lt;&lt; i &lt;&lt; " ]: Adress " &lt;&lt; inet_ntoa(addr) &lt;&lt; endl;
}

memset(&amp;sa, 0, sizeof(sa));
memcpy(&amp;sa.sin_addr.s_addr, local-&gt;h_addr_list[in], sizeof(sa.sin_addr.s_addr));
sa.sin_family = AF_INET;
sa.sin_port = 0;
if (bind(raw_sock, (struct sockaddr*)&amp;sa, sizeof(sa)) == SOCKET_ERROR){
    cout &lt;&lt; "Error binding" &lt;&lt; WSAGetLastError() &lt;&lt; endl;
    closesocket(raw_sock);
    exit(1);
}
cout &lt;&lt; "Bind completed" &lt;&lt; endl;

}

[shizuka]

Let's start by checking the correctness of the sket is being done wrong. It's like this:

if (raw_sock == INVALID_SOCKET) {
   // Обработка ошибки.
}

In order to create a RAW-Socket, the program needs to start with the rights of the administrator. Then there's a mistake. WSAEINVAL (10022, Invalid argument). It's connected to the wrong parameters in the creation of a sket. Correct:

raw_sock = socket(AF_INET, SOCK_RAW, IPPROTO_IP);

Now. bind It's going well.