#include <fcntl.h>

#include <netdb.h>
#include <netinet/in.h>
#include <netinet/tcp.h>

#include <openssl/ssl.h>
#include <openssl/err.h>
#include <openssl/crypto.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/bio.h>

#include <pthread.h>

#include <signal.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>

#include <unistd.h>

/* define max clients per child */
#ifndef __CLIENTS__
   #define __CLIENTS__ 100
#endif

/* define max clients waiting in the queue for connect */
#ifndef __QUEUE_SIZE__
	#define __QUEUE_SIZE__ 10
#endif

/* __SOCKET_ERROR__ must be -1, don't change this */
#ifndef __SOCKET_ERROR__
	#define __SOCKET_ERROR__ -1
#endif

/* open port when this server is activated */
#ifndef __DEFAULT_OPEN_PORT__
	#define __DEFAULT_OPEN_PORT__ 8888
#endif

/* ip of jabber service */
#ifndef __DEFAULT_JABBER_PORT__
	#define __DEFAULT_JABBER_PORT__ 5222
#endif

/* port to connect on jabber service */
#ifndef __DEFAULT_JABBER_IP__
	#define __DEFAULT_JABBER_IP__ "im.celepar.parana"
#endif

/* the jabber's documentation recommends read the packages of socket with size of 4096 (2^12) KB */
#ifndef __BUFFER_SIZE__
	#define __BUFFER_SIZE__ 4096
#endif

#define MESSAGE			"This is the message I'm sending back and forth"

/* Make these what you want for certificate & key files */
#define CERT_FILE "mycert.pem"
#define KEY_FILE  "mycert.pem"

/*Cipher list to be used*/
#define CIPHER_LIST "RC4-MD5"

/*Trusted CAs location*/
#define CA_FILE CERT_FILE
#define CA_DIR NULL

/*Password for the key file*/
#define KEY_PASSWD ""

#ifndef __CLEAR_SCREEN__
	#define __CLEAR_SCREEN__ "clear"
#endif

/* 0 -> false; 1 -> true */
#ifndef __DEBUG__
	#define __DEBUG__ 0
#endif

struct client
{
	int fd;
	struct sockaddr_in sockaddr;
	pthread_t thread;
	SSL_CTX  *ctx;
	SSL * myssl;
	time_t last;
	struct client * next;
};

void * handler(void *);

void usage (void)
{
	puts("usage: ./server <PORT>\n\n");
	exit (-1);
}