#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <syslog.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include <signal.h>
#include <sys/time.h>
#include <sys/select.h>

#include <netinet/in.h>
#include <arpa/inet.h>
#include <resolv.h>
#include <netdb.h>
#include <sys/socket.h>

#include <bluetooth/bluetooth.h>
#include <bluetooth/rfcomm.h>
//#include <bluetooth/l2cap.h>

#define MAXDIM 2048
#define BLUE
//#undef BLUE

int bluetooth_initclient_socket(char *str_addr)
{
	struct sockaddr_rc addr;
	//bdaddr_t bdaddr;
	int s;
	
	printf("bluetooth_initclient_socket called\n");
	/* Default options */
	if ((s = socket(PF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM)) < 0) {
		perror("Can't create socket.");
		exit(1);
	}

	memset(&addr, 0, sizeof(addr));
	addr.rc_family = AF_BLUETOOTH;
	//addr.rc_bdaddr = bdaddr;
	str2ba(str_addr, &addr.rc_bdaddr);
	//str2ba("00:10:C6:4D:38:AC", &addr.rc_bdaddr);
 
	addr.rc_channel = htobs(10); //channel
	printf("connecting...\n");
	if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
		perror("Can't connect.");
		exit(1);
	}
	printf("Connection opened\n");
	return s;	
}

int tcp_initclient_socket(char *str_addr, int port)
{
	struct sockaddr_in 	addr;
	struct in_addr      inet_address;
	struct hostent      *host_info;
	int s;

	printf("tcp_initclient_socket called\n");
	if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
		perror("Can't create socket.");
		exit(1);
	}
	printf("Socket created, resolving address...\n");	
	if ((host_info = gethostbyname(str_addr)) == NULL )
		printf ("Error in resolving");

	memset(&addr, 0, sizeof(addr));
	addr.sin_family = host_info->h_addrtype;
	addr.sin_port = htons(port);
	memcpy(&addr.sin_addr, host_info->h_addr, host_info->h_length);	

	printf("Connecting...\n");
	if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
		perror("Can't connect.");
		exit(1);
	}
	printf("Connection opened\n");
	return s;		
}
	
int main(int argc, char *argv[])
{
	
	int s;
	char *buffer, *tmpPtr;
	int nread;

#ifdef BLUE
	s = bluetooth_initclient_socket(argv[1]);
#else
	s = tcp_initclient_socket(argv[1], 2004);
#endif
  
	if (!(buffer = malloc(MAXDIM))) {
		printf("Can't allocate data buffer\n");
		exit(1);
	}

	printf("Receiving ...\n");
	//Read buffers until EOF is reached
	int length = MAXDIM;
	tmpPtr = buffer;
    do {
    	//tmpPtr += nread;		
		nread = recv(s, tmpPtr, length, 0);
		//length -= nread;
		printf("nread value %d\n", nread);
    } while (nread > 0);
	close(s);	
}