main.c

蓝牙socket 通信的客户端例子 可以和手机java通信

#include <stdio.h>
#include <stdlib.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 addr={0};
       int s,status;
       char *dest,*buf; //="00:18:8D:8E:EA:C8";
       int bytes_write;

       if(argc==2)
         {
           dest=argv[1];
         }
       else
         {
           printf("prarm error\n");
           exit(1);
         }
   
       // allocatea socket
       s=socket(AF_BLUETOOTH,SOCK_STREAM,BTPROTO_RFCOMM);
       if(s<0)
         {
           perror("create socket error");
           exit(1);
         }
   
       // set the connection parameters (who to connect to )
       addr.rc_family=AF_BLUETOOTH;
       addr.rc_channel=(uint8_t)1;
       str2ba(dest,&addr.rc_bdaddr);
   
       // connect to server
       printf("connectting...\n");
       status=connect(s,(struct sockaddr *)&addr,sizeof(addr));
   
       // send a message
       if(status==0){
         printf("scuess!\n"); 
         	sleep(4);
        	 int bytes_write =send(s, "trutrjujgfjgf", sizeof("trutrjujgfjgf"),0);

					if (bytes_write>0)
					{
						printf("发送成功 发送字节数为");
						
					}

					else
					{
						printf("send 错误\n");
					
					}
       
        }

       close(s);
       return 0;
}