int main(int argc, char **argv)
{
- int s;
- struct sockaddr_can addr;
- struct ifreq ifr;
-
- struct {
- struct bcm_msg_head msg_head;
- struct can_frame frame;
- } txmsg;
-
- if ((s = socket(PF_CAN, SOCK_DGRAM, CAN_BCM)) < 0) {
- perror("socket");
- return 1;
- }
-
- addr.can_family = PF_CAN;
- addr.can_ifindex = 0; /* bind to 'any' device */
-
- if (connect(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
- perror("connect");
- return 1;
- }
-
- txmsg.msg_head.opcode = TX_SETUP;
- txmsg.msg_head.can_id = 0x42;
- txmsg.msg_head.flags = SETTIMER|STARTTIMER;
- txmsg.msg_head.nframes = 1;
- txmsg.msg_head.count = 10;
- txmsg.msg_head.ival1.tv_sec = 1;
- txmsg.msg_head.ival1.tv_usec = 0;
- txmsg.msg_head.ival2.tv_sec = 0;
- txmsg.msg_head.ival2.tv_usec = 0;
- txmsg.frame.can_id = 0x42;
- txmsg.frame.can_dlc = 8;
- U64_DATA(&txmsg.frame) = (__u64) 0xdeadbeefdeadbeefULL;
-
- /* should cause an error due to ifindex = 0 */
- if (write(s, &txmsg, sizeof(txmsg)) < 0)
- perror("write");
-
- printf("Press any key to send on valid device ...\n");
- getchar();
-
- addr.can_family = PF_CAN;
- strcpy(ifr.ifr_name, "vcan2");
- ioctl(s, SIOCGIFINDEX, &ifr);
- addr.can_ifindex = ifr.ifr_ifindex;
-
- if (sendto(s, &txmsg, sizeof(txmsg), 0, (struct sockaddr*)&addr, sizeof(addr)) < 0)
- perror("sendto");
-
- printf("Press any key to close the socket ...\n");
- getchar();
-
- close(s);
-
- return 0;
+ int s;
+ struct sockaddr_can addr;
+ struct ifreq ifr;
+
+ struct {
+ struct bcm_msg_head msg_head;
+ struct can_frame frame;
+ } txmsg;
+
+ if ((s = socket(PF_CAN, SOCK_DGRAM, CAN_BCM)) < 0) {
+ perror("socket");
+ return 1;
+ }
+
+ addr.can_family = PF_CAN;
+ addr.can_ifindex = 0; /* bind to 'any' device */
+
+ if (connect(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
+ perror("connect");
+ return 1;
+ }
+
+ txmsg.msg_head.opcode = TX_SETUP;
+ txmsg.msg_head.can_id = 0x42;
+ txmsg.msg_head.flags = SETTIMER|STARTTIMER;
+ txmsg.msg_head.nframes = 1;
+ txmsg.msg_head.count = 10;
+ txmsg.msg_head.ival1.tv_sec = 1;
+ txmsg.msg_head.ival1.tv_usec = 0;
+ txmsg.msg_head.ival2.tv_sec = 0;
+ txmsg.msg_head.ival2.tv_usec = 0;
+ txmsg.frame.can_id = 0x42;
+ txmsg.frame.can_dlc = 8;
+ U64_DATA(&txmsg.frame) = (__u64) 0xdeadbeefdeadbeefULL;
+
+ /* should cause an error due to ifindex = 0 */
+ if (write(s, &txmsg, sizeof(txmsg)) < 0)
+ perror("write");
+
+ printf("Press any key to send on valid device ...\n");
+ getchar();
+
+ addr.can_family = PF_CAN;
+ strcpy(ifr.ifr_name, "vcan2");
+ ioctl(s, SIOCGIFINDEX, &ifr);
+ addr.can_ifindex = ifr.ifr_ifindex;
+
+ if (sendto(s, &txmsg, sizeof(txmsg), 0, (struct sockaddr*)&addr, sizeof(addr)) < 0)
+ perror("sendto");
+
+ printf("Press any key to close the socket ...\n");
+ getchar();
+
+ close(s);
+
+ return 0;
}