#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/rfcomm.h>
#define CHAN 4

main()
{
    int fd, newfd, len, n;
    struct sockaddr_rc addr, remote;
    char buf[100];

    if((fd = socket(PF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM)) < 0) {
    	perror("socket");
    	exit(1);
    }
    	
    addr.rc_family = AF_BLUETOOTH;
    addr.rc_channel = CHAN;
    bacpy(&addr.rc_bdaddr, BDADDR_ANY);

    if(bind(fd, (struct sockaddr*)&addr, sizeof(addr)) < 0) {
    	perror("bind");
    	exit(1);
    }
    listen(fd, 1);
    len = sizeof(struct sockaddr_rc);
    if((newfd = accept(fd, (struct sockaddr*)&remote, &len)) < 0) {
    	perror("accept");
    	exit(1);
    }
    printf("newfd = %d\n", newfd);
    n = recv(newfd, buf, sizeof(buf), 0);
    printf("received %d bytes\n", n);
    buf[n] = 0;
    printf("%s\n", buf);
}