rfcomm-server.c

#include <stdio.h>
#include <unistd.h>
#include <sys/socket.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/rfcomm.h>

int main (int argc, char** argv)
{
    struct sockaddr_rc loc_addr = { 0 } , rem_addr = { 0 } ;
    char buf [1024] = { 0 } ;
    int s, client, bytes_read ;
    unsigned int opt = sizeof (rem_addr);

    // allocate socket
    s = socket (AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);

    // bind socket to port 1 of the first available bluetooth adapter
    loc_addr.rc_family = AF_BLUETOOTH ;
    loc_addr.rc_bdaddr = *BDADDR_ANY ;
    loc_addr.rc_channel =1;
    bind(s, (struct sockaddr *)&loc_addr, sizeof(loc_addr));

    // put socket into listening mode
    listen(s, 1);

    // accept one connection
    client = accept(s, (struct sockaddr *)&rem_addr, &opt);

    ba2str(&rem_addr.rc_bdaddr, buf);
    fprintf(stderr, "accepted connection from %s\n", buf);
    memset ( buf ,0, sizeof ( buf));

    // read data from the client
    bytes_read = recv(client, buf, sizeof(buf), 0);
    if (bytes_read > 0) {
        printf("received [%s]\n", buf);
    }

    // close connection
    close(client);
    close(s);
    return 0;
}