Socket client using Select
<p>Im trying to implement a client function which can establish connection with multiple servers using <code>select()</code> function. But I'm not a expert in using <code>select()</code> function.
However my client can enable a connection with the multiple servers but it could not able to read messages from those multiple servers.</p>

<p>As per my following example , i connected my client with two servers <code>( 192.168.100.136, 192.168.100.138)</code>.
After connected with those two servers , my client was receiving messages from only one server (<code>192.168.100.136</code>) , instead of receiving messages from multiple servers..</p>

<p>I'm not sure about the way I used <code>select()</code> function in my sample program.
Please correct my sample application to get the desired o/p..
Thanks in advance</p>

<pre><code>int main()
{
    int port = 10001 ;
    char ip[][32] = {"192.168.100.136","192.168.100.138"};
    int count = 2 ;
    int ret = clientSelect(ip,port,count);
    return 0 ;
}   
int clientSelect(char **ipAddr ,int port , int count)
    {
    SOCKET max_sd = 0;
    SOCKET socketId[10] = {0};
    SOCKET sd = 0 ;
    SOCKET client_sock[1024] = {0} ;
    fd_set readfds;
    int i ,j , ret;
    char recvBuf[1024] = "";
    char errMsg[256] = "" ;
    struct sockaddr_in server ;

    FD_ZERO(&amp;readfds);
    // Socket Initialization
    for(i = 0; i&lt;count ; i++)
    {
        ret = initSocket(&amp;socketId[i]);//Small function to create socket
        if (ret != 1)
        {
            return ret ;
        }
        //Server info
        server.sin_addr.s_addr  = inet_addr(ipAddr[i]);
        server.sin_family       = AF_INET;
        server.sin_port         = htons(port);
        // Conect to server
        if (connect(socketId[i], (struct sockaddr *)&amp;server , sizeof(server)) &lt; 0)
        {
            printf("connect ::Failed to connect to server %s:%d",ipAddr[i],port);
            return -1;
        }
        // Set Socket fd
        FD_SET(socketId[i], &amp;readfds); 

        max_sd = (max_sd&gt;socketId[i])?max_sd:socketId[i];
    }
    while(TRUE)
    {
        ret = select(max_sd + 1, &amp;readfds, NULL, NULL, NULL);
        if (ret &lt; 0)
        {
            printf("select failed\n ");
            return -1;
        }
        for ( j = 0 ; j&lt;max_sd ; j++)
        {
            sd = client_sock[j] ;
            if (FD_ISSET(sd, &amp;readfds)) 
            {
                ret = recv(sd,(char *)recvBuf,sizeof(recvBuf), 0);
                if(ret &gt; 0 )
                {
                    printf("Message received from socket %d : %s\n",sd,recvBuf);
                    send(sd,(char *)recvBuf,strlen(recvBuf),0);
                }
            }
        }
    }

    return ret ;

}
</code></pre>