diff options
Diffstat (limited to 'cansequence.c')
| -rw-r--r-- | cansequence.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/cansequence.c b/cansequence.c index 16a81b5..5911594 100644 --- a/cansequence.c +++ b/cansequence.c @@ -41,7 +41,7 @@ void print_usage(char *prg) " -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\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); @@ -114,7 +114,7 @@ int main(int argc, char **argv) break; case 'v': - verbose = 1; + verbose++; break; case VERSION_OPTION: @@ -160,7 +160,7 @@ int main(int argc, char **argv) sequence_init = 0; sequence = frame.payload.data[0]; } - if(verbose) + if(verbose>1) printf("received frame. sequence number: %d\n",sequence); if( frame.payload.data[0] != sequence) { printf("received wrong sequence count. expected: %d, got: %d\n", @@ -169,6 +169,8 @@ int main(int argc, char **argv) exit(1); sequence = frame.payload.data[0]; } + if(verbose && !sequence) + printf("sequence wrap around\n"); sequence++; } } @@ -177,16 +179,16 @@ int main(int argc, char **argv) frame.can_id = 2; frame.payload.data[0] = 0; while ((infinite || loopcount--) && running) { - if(verbose) + if(verbose>1) printf("sending frame. sequence number: %d\n",sequence); + if(verbose && !sequence) + printf("sequence wrap around\n"); if( write(s, &frame, sizeof(frame)) < 0) { perror("write"); break; } (unsigned char)frame.payload.data[0]++; sequence++; -// printf("%d %d\n",sequence,(unsigned char)frame.payload.data[0]); -// usleep(10000); } } return 0; |