int
main(int ac, char **av)
{
const char *LevelAry[] = {
"emerg",
"alert",
"crit",
"err",
"warning",
"notice",
"info",
"debug",
"panic",
"error",
"warn",
NULL
};
int i;
/*
* parse options
*/
DaemonUid = getuid();
opterr = 0;
while ((i = getopt(ac,av,"dl:L:fbSc:s:m:M:t:")) != -1) {
switch (i) {
case 'l':
{
char *ptr;
int j;
ptr = optarg;
for (j = 0; LevelAry[j]; ++j) {
if (strncmp(ptr, LevelAry[j], strlen(LevelAry[j])) == 0) {
break;
}
}
switch(j) {
case 0:
case 8:
/* #define LOG_EMERG 0 [* system is unusable *] */
LogLevel = LOG_EMERG;
break;
case 1:
/* #define LOG_ALERT 1 [* action must be taken immediately *] */
LogLevel = LOG_ALERT;
break;
case 2:
/* #define LOG_CRIT 2 [* critical conditions *] */
LogLevel = LOG_CRIT;
break;
case 3:
case 9:
/* #define LOG_ERR 3 [* error conditions *] */
LogLevel = LOG_ERR;
break;
case 4:
case 10:
/* #define LOG_WARNING 4 [* warning conditions *] */
LogLevel = LOG_WARNING;
break;
case 5:
/* #define LOG_NOTICE 5 [* normal but significant condition *] */
LogLevel = LOG_NOTICE;
break;
case 6:
/* #define LOG_INFO 6 [* informational *] */
LogLevel = LOG_INFO;
break;
case 7:
/* #define LOG_DEBUG 7 [* debug-level messages *] */
LogLevel = LOG_DEBUG;
break;
default:
LogLevel = atoi(optarg);
}
}
break;
case 'd':
DebugOpt = 1;
LogLevel = LOG_DEBUG;
/* fall through to include f too */
case 'f':
ForegroundOpt = 1;
break;
case 'b':
ForegroundOpt = 0;
break;
case 'S': /* log through syslog */
SyslogOpt = 1;
break;
case 'L': /* use internal log formatter */
SyslogOpt = 0;
LogFile = optarg;
/* if LC_TIME is defined, we use it for logging to file instead of compiled-in TIMESTAMP_FMT */
if (getenv("LC_TIME") != NULL) {
LogHeader = LOCALE_LOGHEADER;
}
break;
case 'c':
if (*optarg != 0) CDir = optarg;
break;
case 's':
if (*optarg != 0) SCDir = optarg;
break;
case 't':
if (*optarg != 0) TSDir = optarg;
break;
case 'M':
if (*optarg != 0) SendMail = optarg;
break;
case 'm':
if (*optarg != 0) Mailto = optarg;
break;
default:
/*
* check for parse error
*/
printf("dillon's cron daemon " VERSION "\n");
printf("crond [-s dir] [-c dir] [-t dir] [-m user@host] [-M mailer] [-S|-L [file]] [-l level] [-b|-f|-d]\n");
printf("-s directory of system crontabs (defaults to %s)\n", SCRONTABS);
printf("-c directory of per-user crontabs (defaults to %s)\n", CRONTABS);
printf("-t directory of timestamps (defaults to %s)\n", CRONSTAMPS);
printf("-m user@host where should cron output be directed? (defaults to local user)\n");
printf("-M mailer (defaults to %s)\n", SENDMAIL);
printf("-S log to syslog using identity '%s' (default)\n", LOG_IDENT);
printf("-L file log to specified file instead of syslog\n");
printf("-l loglevel log events <= this level (defaults to %s (level %d))\n", LevelAry[LOG_LEVEL], LOG_LEVEL);
printf("-b run in background (default)\n");
printf("-f run in foreground\n");
printf("-d run in debugging mode\n");
exit(2);
}
}
/*
* close stdin and stdout.
* close unused descriptors - don't need.
* optional detach from controlling terminal
*/
fclose(stdin);
fclose(stdout);
i = open("/dev/null", O_RDWR);
if (i < 0) {
perror("open: /dev/null");
exit(1);
}
dup2(i, 0);
dup2(i, 1);
/* create tempdir with permissions 0755 for cron output */
TempDir = strdup(TMPDIR "/cron.XXXXXX");
if (mkdtemp(TempDir) == NULL) {
perror("mkdtemp");
exit(1);
}
if (chmod(TempDir, S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH)) {
perror("chmod");
exit(1);
}
if (!(TempFileFmt = concat(TempDir, "/cron.%s.%d", NULL))) {
errno = ENOMEM;
perror("main");
exit(1);
}
if (ForegroundOpt == 0) {
int fd;
int pid;
if ((pid = fork()) < 0) {
/* fork failed */
perror("fork");
exit(1);
} else if (pid > 0) {
/* parent */
exit(0);
}
/* child continues */
/* become session leader, detach from terminal */
if (setsid() < 0)
perror("setsid");
if ((fd = open("/dev/tty", O_RDWR)) >= 0) {
ioctl(fd, TIOCNOTTY, 0);
close(fd);
}
/* setup logging for backgrounded daemons */
if (SyslogOpt) {
/* start SIGHUP and SIGCHLD handling while stderr still open */
initsignals();
/* 2> /dev/null */
fclose(stderr);
dup2(1, 2);
/* open syslog */
openlog(LOG_IDENT, LOG_CONS|LOG_PID, LOG_CRON);
} else {
/* open logfile */
if ((fd = open(LogFile, O_WRONLY|O_CREAT|O_APPEND, 0600)) >= 0) {
/* start SIGHUP ignoring, SIGCHLD handling while stderr still open */
initsignals();
/* 2> LogFile */
fclose(stderr);
dup2(fd, 2);
} else {
int n = errno;
fdprintf(2, "failed to open logfile '%s', reason: %s", LogFile, strerror(n));
exit(n);
}
}
} else {
/* daemon in foreground */
/* stay in existing session, but start a new process group */
if (setpgid(0,0)) {
perror("setpgid");
exit(1);
}
/* stderr stays open, start SIGHUP ignoring, SIGCHLD handling */
initsignals();
}
/* close all other fds, including the ones we opened as /dev/null and LogFile */
for (i = 3; i < MAXOPEN; ++i) {
close(i);
}
/*
* main loop - synchronize to 1 second after the minute, minimum sleep
* of 1 second.
*/
printlogf(LOG_NOTICE,"%s " VERSION " dillon's cron daemon, started with loglevel %s\n", av[0], LevelAry[LogLevel]);
SynchronizeDir(CDir, NULL, 1);
SynchronizeDir(SCDir, "root", 1);
ReadTimestamps(NULL);
TestStartupJobs(); /* @startup jobs only run when crond is started, not when their crontab is loaded */
{
time_t t1 = time(NULL);
time_t t2;
long dt;
short rescan = 60;
short stime = 60;
for (;;) {
sleep((stime + 1) - (short)(time(NULL) % stime));
t2 = time(NULL);
dt = t2 - t1;
/*
* The file 'cron.update' is checked to determine new cron
* jobs. The directory is rescanned once an hour to deal
* with any screwups.
*
* check for disparity. Disparities over an hour either way
* result in resynchronization. A reverse-indexed disparity
* less then an hour causes us to effectively sleep until we
* match the original time (i.e. no re-execution of jobs that
* have just been run). A forward-indexed disparity less then
* an hour causes intermediate jobs to be run, but only once
* in the worst case.
*
* when running jobs, the inequality used is greater but not
* equal to t1, and less then or equal to t2.
*/
if (--rescan == 0) {
/*
* If we resynchronize while jobs are running, we'll clobber
* the job pids, so we won't know what's already running.
*/
if (CheckJobs() > 0) {
rescan = 1;
} else {
rescan = 60;
SynchronizeDir(CDir, NULL, 0);
SynchronizeDir(SCDir, "root", 0);
ReadTimestamps(NULL);
}
} else {
CheckUpdates(CDir, NULL, t1, t2);
CheckUpdates(SCDir, "root", t1, t2);
}
if (DebugOpt)
printlogf(LOG_DEBUG, "Wakeup dt=%d\n", dt);
if (dt < -60*60 || dt > 60*60) {
t1 = t2;
printlogf(LOG_NOTICE,"time disparity of %d minutes detected\n", dt / 60);
} else if (dt > 0) {
TestJobs(t1, t2);
RunJobs();
sleep(5);
if (CheckJobs() > 0)
stime = 10;
else
stime = 60;
t1 = t2;
}
}
}
/* not reached */
}
int main(int argc, char *argv[]) {
int timestamp = time(NULL);
if(argc >= 2) {
if(argv[1][0] == 'r' && argc >= 3) {
readfromfile = 1;
timestamp = atoi(argv[2]);
}
if(argv[1][0] == 'w')
writetofile = 1;
if(argv[1][0] == 'W' || argv[1][1] == 'W')
writetofile2 = 1;
}
initsignals();
sync_init(ndongles, 16384);
corr_init(ndongles, 32);
buffers = malloc(ndongles * sizeof(*buffers));
files = malloc(ndongles * sizeof(*files));
files2 = malloc(ndongles * sizeof(*files2));
for(di=0; di < ndongles; di++) {
char t[32];
buffers[di] = malloc(blocksize * sizeof(**buffers));
if(readfromfile || writetofile) {
sprintf(t, "d%02d_%d", di, timestamp);
if((files[di] = fopen(t, readfromfile ? "rb" : "wb")) == NULL) {
fprintf(stderr, "Could not open file\n");
goto fail;
}
}
if(writetofile2) {
sprintf(t, "c%02d_%d", di, timestamp);
if((files2[di] = fopen(t, "wb")) == NULL) {
fprintf(stderr, "Could not open file2\n");
goto fail;
}
}
}
if(readfromfile) {
for(;;) {
for(di = 0; di < ndongles; di++) {
if(fread(buffers[di], blocksize, 1, files[di]) == 0)
goto fail;
}
dodsp(blocksize, (void**)buffers);
}
} else {
int donglesok = coherent_init(ndongles, 2400000, 434e6, 300);
if(donglesok == ndongles) {
while(do_exit == 0) {
if(coherent_read(blocksize, buffers) == -1) break;
dodsp(blocksize, (void**)buffers);
if(writetofile) {
for(di = 0; di < ndongles; di++) {
fwrite(buffers[di], blocksize, 1, files[di]);
}
}
}
}
coherent_exit();
}
fail:
sync_exit();
return 0;
}
int
main(void)
{
switch(fork()) {
case -1:
die("fork\n");
break;
case 0:
dev_id = hci_devid(DEV_ID);
if (dev_id < 0) {
die("Invalid device\n");
} else {
initsignals();
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
Display *dpy = NULL;
int rssi, screen;
Bool help = True;
check_version(dev_id);
add_to_white_list(dev_id);
handle = connect_to_device(dev_id);
/* encryption(dev_id, handle); */
while (running) {
if (help) {
if (!(dpy = XOpenDisplay(0)))
die("ble: cannot open display");
/* Get the number of screens in display "dpy" and blank them all. */
nscreens = ScreenCount(dpy);
locks = malloc(sizeof(Lock *) * nscreens);
if (locks == NULL)
die("ble: malloc: %s", strerror(errno));
}
if (help) {
rssi = read_rssi(dev_id, handle);
if ((calculate_distance(rssi) >= 2.0) && (rssi <= -71 && rssi >= -75)) {
if (locks != NULL && help) {
for (screen = 0; screen < nscreens; screen++)
locks[screen] = lockscreen(dpy, screen);
XSync(dpy, False);
}
help = False;
}
}
sleep(1);
if (!help) {
rssi = read_rssi(dev_id, handle);
if ((calculate_distance(rssi) <= 2.0) && (rssi <= -30 && rssi >= -70)) {
for (screen = 0; screen < nscreens; screen++)
unlockscreen(dpy, locks[screen]);
if (locks != NULL || dpy != NULL) {
free(locks);
XCloseDisplay(dpy);
help = True;
}
}
}
}
disconnect_from_device(dev_id, handle);
}
default:
break;
}
return EXIT_SUCCESS;
}