static void
readTrace(struct tr *tr,
char *names,
value * covPtr)
{
struct cfile *cf;
int nSelect;
T_TESTLIST *selectList;
int i;
value cov;
nSelect = 0; /* No tests seen so far. */
/*
* Read trace data and create selectList.
*/
cf = (struct cfile *) cf_openIn(tr->traces[0]);
if (cf == NULL) {
fprintf(stderr, "can't open %s\n", tr->traces[0]);
exit(1);
}
selectList = NULL;
trace_data(cf, tr->traces[0], tr->mod, tr->n_static, tr->covCount,
tr->options, names, &selectList, &nSelect);
cf_close(cf);
if (nSelect == 1) {
covThreshold(selectList[0].cov, tr->covCount, tr->threshold);
if (tr->weaker) {
covWeaker(tr->mod, tr->n_static, selectList[0].cov,
tr->options);
}
*covPtr = selectList[0].cov;
free(selectList);
} else {
if (nSelect > 1) {
fprintf(stderr, "%d: Huh? nSelect should be 1\n", nSelect);
exit(1);
}
if (selectList != NULL) {
fprintf(stderr, "Warning: selectList not NULL\n");
selectList = NULL;
}
cov = (value) malloc((size_t) tr->covCount * sizeof *cov);
if (cov == NULL) {
fprintf(stderr, "Can't malloc\n");
exit(1);
}
for (i = 0; i < tr->covCount; ++i)
cov[i] = 0;
*covPtr = cov;
}
return;
}
int main(int argc, char **argv)
{
int verdict;
unsigned char buf[BUFSIZE];
struct ipq_handle *h;
int cfd;
int daemonize = 1;
if (argc > 1) {
if (!strcmp(argv[1], "-nd")) {
daemonize = 0;
}
}
srand(0);
cfd = make_ipc();
if ( cfd < 0 )
exit(1);
printhelp();
h = make_ipq();
if (daemonize) {
FILE *logfile = 0;
int pid;
logfile = fopen(LOGFILE, "a");
if (!logfile) {
perror("Failed to open " LOGFILE);
exit(1);
}
if ( daemon(0, 0) < 0 ) {
perror("Failed to daemonize");
exit(1);
}
if ( dup2(fileno(logfile), STDERR_FILENO) < 0 )
abort();
fclose(logfile);
pid = writepid();
if (pid < 0)
return -1;
/* disable low water mark check for io pages */
if (setpriority(PRIO_PROCESS, pid, PRIO_SPECIAL_IO)) {
perror("Unable to prioritize tapdisk proc");
exit(1);
}
TRACE("Start pfilter PID %d\n", pid);
}
do {
ssize_t status;
int type;
status = ipq_read(h, buf, BUFSIZE, 0);
if (status < 0)
fail_retry(&h);
type = ipq_message_type(buf);
switch (type) {
case NLMSG_ERROR:
TRACE("pfilter: Received error message %d\n",
ipq_get_msgerr(buf));
break;
case IPQM_PACKET: {
ipq_packet_msg_t *m = ipq_get_packet(buf);
verdict = filter();
status = ipq_set_verdict(h, m->packet_id,
verdict, 0, NULL);
if (status < 0)
fail_retry(&h);
trace_data(verdict);
break;
}
default:
TRACE("pfilter: Unknown message type: %d\n", type);
break;
}
} while (1);
ipq_destroy_handle(h);
return 0;
}