Thread: WinSock program examples don't work with my compiler - MingGW , windows7

My book I had only covered socket programming for Mac and Linux, so I couldn't use it. Then when I got some samples from MSDN or other sites and tested it, those didn't work for me either. Here is one of the WinSock programs I found and the errors I got.

Code:

/*
    Live Server on port 8888
*/
#include<io.h>
#include<stdio.h>
#include<winsock2.h>
 
#pragma comment(lib,"ws2_32.lib") //Winsock Library
 
int main(int argc , char *argv[])
{
    WSADATA wsa;
    SOCKET s , new_socket;
    struct sockaddr_in server , client;
    int c;
    char *message;
 
    printf("\nInitialising Winsock...");
    if (WSAStartup(MAKEWORD(2,2),&wsa) != 0)
    {
        printf("Failed. Error Code : %d",WSAGetLastError());
        return 1;
    }
     
    printf("Initialised.\n");
     
    //Create a socket
    if((s = socket(AF_INET , SOCK_STREAM , 0 )) == INVALID_SOCKET)
    {
        printf("Could not create socket : %d" , WSAGetLastError());
    }
 
    printf("Socket created.\n");
     
    //Prepare the sockaddr_in structure
    server.sin_family = AF_INET;
    server.sin_addr.s_addr = INADDR_ANY;
    server.sin_port = htons( 8888 );
     
    //Bind
    if( bind(s ,(struct sockaddr *)&server , sizeof(server)) == SOCKET_ERROR)
    {
        printf("Bind failed with error code : %d" , WSAGetLastError());
        exit(EXIT_FAILURE);
    }
     
    puts("Bind done");
 
    //Listen to incoming connections
    listen(s , 3);
     
    //Accept and incoming connection
    puts("Waiting for incoming connections...");
     
    c = sizeof(struct sockaddr_in);
     
    while( (new_socket = accept(s , (struct sockaddr *)&client, &c)) != INVALID_SOCKET )
    {
        puts("Connection accepted");
         
        //Reply to the client
        message = "Hello Client , I have received your connection. But I have to go now, bye\n";
        send(new_socket , message , strlen(message) , 0);
    }
     
    if (new_socket == INVALID_SOCKET)
    {
        printf("accept failed with error code : %d" , WSAGetLastError());
        return 1;
    }
 
    closesocket(s);
    WSACleanup();
     
    return 0;
}

Code:

Errors :

(.text+0x38): undefined reference to `WSAStartup@8'
(.text+0x44): undefined reference to `WSAGetLastError@0'
(.text+0x86): undefined reference to `socket@12'
(.text+0x97): undefined reference to `WSAGetLastError@0'
(.text+0xd2): undefined reference to `htons@4'
:(.text+0xf9): undefined reference to `bind@12'
(.text+0x106): undefined reference to `WSAGetLastError@0'
(.text+0x141): undefined reference to `listen@8'
(.text+0x1ad): undefined reference to `send@16'
(.text+0x1cf): undefined reference to `accept@12'
(.text+0x1e6): undefined reference to `WSAGetLastError@0'
(.text+0x208): undefined reference to `closesocket@4'
(.text+0x210): undefined reference to `WSACleanup@0'
collect2: ld returned 1 exit status

I compiled the program like this :

Code:

gcc internet.c -o in.exe 2> errors.txt

How do I make it so I can compile winsock programs and be able to learn more about them (eventually being able to make my own)?