Re: API calls

[Wolfgang <wutz@unterderbruecke.de>]

I was a bit hasty. It is not working, but I don't get it. Eclipse is saying 
bind failed: Invalid argument
send failed: Destination address required

How is a frame send with id and data, like when you do $cansend can0 
-ei0x123ff80 0xFF. Because only data is sent now?


#include <sys/ioctl.h>
#include <net/if.h>
#include <string.h>
#include <linux/can/j1939.h>
#include <linux/can.h>
#include <unistd.h>
#include <sys/socket.h>
#include <stdio.h>



int main (void)
{
	int s;
	s = socket(PF_CAN, SOCK_DGRAM, CAN_J1939);
	    
	struct sockaddr_can addr;

    memset(&addr, 0, sizeof(addr));
    addr.can_ifindex = if_nametoindex("can0");
    
    addr.can_addr.j1939.name = J1939_NO_NAME;
    addr.can_addr.j1939.addr = 0x80;
    addr.can_addr.j1939.pgn = 0x12300;
      
   
   struct can_frame frame;
   frame.data[1] = 0xFF;   
   
       
      
    if (bind(s, (void *)&addr, sizeof(addr))<0)
    {
    perror ("bind failed");
    }
    
    
   if (send(s, frame.data, sizeof(frame.data), 0) < 0)
   {
   perror ("send failed");
   }
    
return 0;
}