l2cap_client.c

BLUE 建立L2CAP, 发送测试字符串

#include<stdio.h> 
#include <stdlib.h>  
#include <string.h>
#include <unistd.h>
#include <bluetooth/bluetooth.h>
#include <sys/socket.h>
#include <bluetooth/l2cap.h>


int main(int argc, char **argv)
{
     struct sockaddr_l2 addr = {0};
    int s, status,ct = 0;
    char *message = "hello!";
    char dest[18] = "01:23:45:67:89:AB";
    char buf[255];
    
    if(argc < 2)
    {
      fprintf(stderr, "usage: %s <bt_addr>\n",argv[0]);
      exit(1);
    }
    strncpy(dest,argv[1],18);

   s = socket(PF_BLUETOOTH,SOCK_SEQPACKET,BTPROTO_L2CAP);

    addr.l2_family = AF_BLUETOOTH;
    addr.l2_psm = htobs(0x1001);
    str2ba(dest,&addr.l2_bdaddr);

    status = connect(s,(struct sockaddr*)&addr,sizeof(addr));

    if(status == 0) {
    
     printf("sucess!\n");
     while(1)
     {
     printf("number %d string\nplease enter a string\n",ct);
    // status == write(s,"hello!",6);
      //scanf("%s",buf);
      write(s,"ok!",3);
    // write(s,buf,strlen(buf));
     ct++;
     sleep(3);
     }
    }

    if(status < 0) perror("uh oh");
    close(s); 
    return 0;
}