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can-utils
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git-svn-id: https://iocaste.extern.pengutronix.de/svn/canutils/trunks/canutils-2.0-trunk@71 5fd5a299-6ef2-0310-aa18-8b01d7c39d8c

pull/254/head^2
Marc Kleine-Budde 2007-09-20 11:51:29 +00:00
parent fc3b0449a9
commit 3794644caa
1 changed files with 19 additions and 17 deletions
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36
cansequence.c
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@ -1,3 +1,5 @@
#include <can_config.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
@ -12,8 +14,9 @@
#include <sys/ioctl.h>
#include <net/if.h>
#include <socket-can/can.h>
#include <can_config.h>
#include <linux/can.h>
#include <linux/can/raw.h>
#include <linux/can/ioctl.h>
extern int optind, opterr, optopt;
@ -37,14 +40,14 @@ void print_usage(char *prg)
"Options:\n"
" -f, --family=FAMILY Protocol family (default PF_CAN = %d)\n"
" -t, --type=TYPE Socket type, see man 2 socket (default SOCK_RAW = %d)\n"
" -p, --protocol=PROTO CAN protocol (default CAN_PROTO_RAW = %d)\n"
" -p, --protocol=PROTO CAN protocol (default CAN_RAW = %d)\n"
" -r, --receive work as receiver\n"
" -l --loop=COUNT send COUNT messages\n"
" -q --quit quit if a wrong sequence is encountered\n"
" -v, --verbose be verbose (twice to be even more verbose\n"
" -h --help this help\n"
" --version print version information and exit\n",
prg, PF_CAN, SOCK_RAW, CAN_PROTO_RAW);
prg, PF_CAN, SOCK_RAW, CAN_RAW);
}
void sigterm(int signo)
@ -54,7 +57,7 @@ void sigterm(int signo)
int main(int argc, char **argv)
{
int family = PF_CAN, type = SOCK_RAW, proto = CAN_PROTO_RAW;
int family = PF_CAN, type = SOCK_RAW, proto = CAN_RAW;
int opt;
struct sockaddr_can addr;
struct can_frame frame;
@ -143,7 +146,6 @@ int main(int argc, char **argv)
strncpy(ifr.ifr_name, argv[optind], sizeof(ifr.ifr_name));
ioctl(s, SIOCGIFINDEX, &ifr);
addr.can_ifindex = ifr.ifr_ifindex;
addr.can_id = CAN_FLAG_ALL;
if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
perror("bind");
@ -156,18 +158,18 @@ int main(int argc, char **argv)
perror("read");
return 1;
} else {
if( sequence_init ) {
if (sequence_init) {
sequence_init = 0;
sequence = frame.payload.data_u8[0];
sequence = frame.data[0];
}
if(verbose>1)
if (verbose>1)
printf("received frame. sequence number: %d\n",sequence);
if( frame.payload.data_u8[0] != sequence) {
if (frame.data[0] != sequence) {
printf("received wrong sequence count. expected: %d, got: %d\n",
frame.payload.data_u8[0], sequence);
frame.data[0], sequence);
if(quit)
exit(1);
sequence = frame.payload.data_u8[0];
sequence = frame.data[0];
}
if(verbose && !sequence)
printf("sequence wrap around\n");
@ -177,17 +179,17 @@ int main(int argc, char **argv)
} else {
frame.can_dlc = 1;
frame.can_id = 2;
frame.payload.data[0] = 0;
frame.data[0] = 0;
while ((infinite || loopcount--) && running) {
if(verbose>1)
if (verbose>1)
printf("sending frame. sequence number: %d\n",sequence);
if(verbose && !sequence)
if (verbose && !sequence)
printf("sequence wrap around\n");
if( write(s, &frame, sizeof(frame)) < 0) {
if (write(s, &frame, sizeof(frame)) < 0) {
perror("write");
break;
}
(unsigned char)frame.payload.data[0]++;
(unsigned char)frame.data[0]++;
sequence++;
}
}