/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <errno.h>

#include <string.h>

#include <sys/types.h>

#include <sys/socket.h>

#include <netinet/in.h>

#include <arpa/inet.h>

#include <sys/wait.h>

#include <signal.h>

#include <fcntl.h>

#define MYPORT 5000 // the port users will be connecting to

#define BACKLOG 50 // how many pending connections queue will hold

int main(void)

	{

	int sockfd, new_fd; // listen on sock_fd, new connection on new_fd

	struct sockaddr_in my_addr; // my address information

	struct sockaddr_in their_addr; // connector's address information

	socklen_t sin_size;

	int yes=1;

	if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) 

		{

		exit(1);

		}

	if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(int)) == -1)

		{

		exit(1);

		}

	my_addr.sin_family = AF_INET; // host byte order

	my_addr.sin_port = htons(MYPORT); // short, network byte order

	my_addr.sin_addr.s_addr = INADDR_ANY; // automatically fill with my IP

	memset(my_addr.sin_zero, '\0', sizeof my_addr.sin_zero);

	if (bind(sockfd, (struct sockaddr *)&my_addr, sizeof my_addr) == -1) 

		{

		exit(1);

		}

	if (listen(sockfd, BACKLOG) == -1) 

		{

		exit(1);

		}

	while(1)

		{

		FILE *fp;

		char *ptr1;

		int SIZE = 100*1024; // happens for only data size > 16KB

		int no_bytes;

		int retVal;

		sin_size = sizeof(their_addr);

		if ((new_fd = accept(sockfd, (struct sockaddr *)&their_addr, &sin_size)) == -1)

			{

			continue;

			}

		int ret = fcntl (new_fd, F_SETFL, O_NONBLOCK);

		fp = fopen("c:\\socketmorethan16k.txt","rb"); // somefile >16K

		ptr1 = (char *)malloc(SIZE);

		if(fp)

			{

			no_bytes = fread(ptr1,1,SIZE,fp);

			fclose(fp);

			retVal = write(new_fd,ptr1,no_bytes);

			if(retVal == -1)

				{

				return -1;

				}

			}

		}

	}