Sending Data via winsock?

[CroCo]

I want to send data from a file via winsock. The problem is that the only first line in the file is send.

Client

#include <iostream>
#include <winsock2.h>
#include <fstream>
#include <string>
 
#pragma comment(lib,"ws2_32.lib") 
 
#define SERVER "127.0.0.1"  //ip address of udp server
#define BUFLEN 512  //Max length of buffer
#define PORT 5555   //The port on which to listen for incoming data
 
int main(void)
{
    struct sockaddr_in si_other;
	SOCKET s;
    int s, slen=sizeof(si_other);
    char buffer[BUFLEN];
	const char * c;
    std::string message;
    WSADATA wsa;
	std::ifstream myfile;

	myfile.open ("C:\\Users\\bbbbb\\Desktop\\data.txt");
	 // Check whether the file failed to be open
	if (myfile.fail())
	{
	  std::cerr << "The file could not be opened. " << std::endl;
	}
	 
    //Initialise winsock
    std::cout << "\nInitialising Winsock..." << std::endl;
    if (WSAStartup(MAKEWORD(2,2),&wsa) != 0)
    {
        std::cout << "Failed. Error Code : " << WSAGetLastError() << std::endl;
        exit(EXIT_FAILURE);
    }
    printf("Initialised.\n");
     
    //create socket
    if ( (s=socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == SOCKET_ERROR)
    {
        std::cout << "socket() failed. Error: " << WSAGetLastError() << std::endl;
        exit(EXIT_FAILURE);
    }
     
    //setup address structure
    memset((char *) &si_other, 0, sizeof(si_other));
    si_other.sin_family = AF_INET;
    si_other.sin_port = htons(PORT);
    si_other.sin_addr.S_un.S_addr = inet_addr(SERVER);
     
    //start communication
	while( !myfile.eof() )
    {
       
		std::getline(myfile, message);
		c = message.c_str();

        //send the message
        if (sendto(s, c, strlen(c) , 0 , (struct sockaddr *) &si_other, slen) == SOCKET_ERROR)
        {
            std::cout << "sendto() failed. Error: " <<  WSAGetLastError() << std::endl;
            break;
        }
         
        
        //clear the buffer 
        memset(buffer,'\0', BUFLEN);

        //receive Data from Server
        if (recvfrom(s, buffer, BUFLEN, 0, (struct sockaddr *) &si_other, &slen) == SOCKET_ERROR)
        {
            std::cout << "recvfrom() failed. Error: "  << WSAGetLastError() << std::endl;
            break;
        }
         
        std::cout << buffer << std::endl;
    }
	
	myfile.close();
    closesocket(s);
    WSACleanup();
 
    return 0;
}

Server

#include <iostream>
#include <WinSock2.h>

#pragma comment(lib,"ws2_32.lib")

#define BUFLEN 512  //Max length of buffer
#define PORT 5555   //The port on which to listen for incoming data



int main()
{
	SOCKET s;
    struct sockaddr_in server, si_other;
    int slen , recv_len;
    char buf[BUFLEN];
    WSADATA wsa;
 
    slen = sizeof(si_other) ;
     
    //Initialise winsock
    std::cout << "\nInitialising Winsock...\n";
    if (WSAStartup(MAKEWORD(2,2),&wsa) != 0)
    {
        std::cout << "Failed. Error Code : %d" << WSAGetLastError() << std::endl;
        exit(EXIT_FAILURE);
    }

	std::cout << "Initialised.\n";
     
    //Create a socket
    if( (s = socket(AF_INET , SOCK_DGRAM , 0 )) == INVALID_SOCKET )
    {
       std::cout << "Failed. Error Code : %d" << WSAGetLastError() << std::endl;
    }
    std::cout << "Socket created.\n" << std::endl;
     
    //Prepare the sockaddr_in structure
    server.sin_family = AF_INET;
    server.sin_addr.s_addr = INADDR_ANY;
    server.sin_port = htons( PORT );


	//Bind
    if( bind(s ,(struct sockaddr *)&server , sizeof(server)) == SOCKET_ERROR)
    {
        std::cout << "Failed. Error Code : %d" << WSAGetLastError() << std::endl;
        exit(EXIT_FAILURE);
    }
    std::cout << "Bind done" << std::endl;
 
    //keep listening for data
    while(1)
    {
        std::cout << "Waiting for data..." << std::endl;
        fflush(stdout);
         
        //clear the buffer 
        memset(buf,'\0', BUFLEN);
         
        //receive a reply from Client
        if ((recv_len = recvfrom(s, buf, BUFLEN, 0, (struct sockaddr *) &si_other, &slen)) == SOCKET_ERROR)
        {
            std::cout << "recvfrom() failed. Error: "  << WSAGetLastError() << std::endl;
            break;
        }
         
        //Details of the client and the received data
        std::cout << "Received packet from " << inet_ntoa(si_other.sin_addr) << ":" << ntohs(si_other.sin_port) << std::endl;
        std::cout << "Data: " <<  buf << std::endl;
        
    }
 
    closesocket(s);
    WSACleanup();
     
    return 0;
}
    
  

[SamuelAdams]

Not sure, I get a error when trying to compile the client.

C:\Temp\WClient.cpp In function 'int main()':
16 9 C:\Temp\WClient.cpp [Error] conflicting declaration 'int s'
15 9 C:\Temp\WClient.cpp [Error] 's' has a previous declaration as 'SOCKET s'

Probably my old compiler but thought I'd mention that.

    SOCKET s;
    int s, slen=sizeof(si_other);

[CroCo]

@SamuelAdams,
Thank you for being helpful. I'v solved the problem and it has nothing to do with what you mentioned. After getting enough sleep, I solved it. There is no real problem however, the only concern was while loop. The Server must send response to the Client. This is why the person should not type any code while he/she is tired. What is your compiler?