void
down_q(struct printer *pp)
{
int setres;
char lf[MAXPATHLEN];
lock_file_name(pp, lf, sizeof lf);
printf("%s:\n", pp->printer);
setres = set_qstate(SQS_DISABLEQ+SQS_STOPP, lf);
if (setres >= 0)
upstat(pp, generic_msg, 1);
}
static void
stoppr(void)
{
int fd;
struct stat stbuf;
if (cgetstr(bp, "sd", &SD) == -1)
SD = _PATH_DEFSPOOL;
if (cgetstr(bp, "lo", &LO) == -1)
LO = DEFLOCK;
(void)snprintf(line, sizeof(line), "%s/%s", SD, LO);
printf("%s:\n", printer);
/*
* Turn on the owner execute bit of the lock file to disable printing.
*/
PRIV_START;
if (stat(line, &stbuf) >= 0) {
stbuf.st_mode |= S_IXUSR;
if (chmod(line, stbuf.st_mode & 0777) < 0)
printf("\tcannot disable printing\n");
else {
upstat("printing disabled\n");
printf("\tprinting disabled\n");
}
} else if (errno == ENOENT) {
if ((fd = safe_open(line, O_WRONLY|O_CREAT|O_NOFOLLOW, 0760)) < 0)
printf("\tcannot create lock file\n");
else {
(void)fchown(fd, DEFUID, -1);
(void)close(fd);
upstat("printing disabled\n");
printf("\tprinting disabled\n");
}
} else
printf("\tcannot stat lock file\n");
PRIV_END;
}
/*
* kill an existing daemon and disable printing.
*/
void
abort_q(struct printer *pp)
{
int killres, setres;
char lf[MAXPATHLEN];
lock_file_name(pp, lf, sizeof lf);
printf("%s:\n", pp->printer);
/*
* Turn on the owner execute bit of the lock file to disable printing.
*/
setres = set_qstate(SQS_STOPP, lf);
/*
* If set_qstate found that there already was a lock file, then
* call a routine which will read that lock file and kill the
* lpd-process which is listed in that lock file. If the lock
* file did not exist, then either there is no daemon running
* for this queue, or there is one running but *it* could not
* write a lock file (which means we can not determine the
* process id of that lpd-process).
*/
switch (setres) {
case SQS_CHGOK:
case SQS_CHGFAIL:
/* Kill the process */
killres = kill_qtask(lf);
break;
case SQS_CREOK:
case SQS_CREFAIL:
printf("\tno daemon to abort\n");
break;
case SQS_STATFAIL:
printf("\tassuming no daemon to abort\n");
break;
default:
printf("\t<unexpected result (%d) from set_qstate>\n",
setres);
break;
}
if (setres >= 0)
upstat(pp, "printing disabled\n", 0);
}
static void
abortpr(int dis)
{
FILE *fp;
struct stat stbuf;
int pid, fd;
if (cgetstr(bp, "sd", &SD) == -1)
SD = _PATH_DEFSPOOL;
if (cgetstr(bp, "lo", &LO) == -1)
LO = DEFLOCK;
(void)snprintf(line, sizeof(line), "%s/%s", SD, LO);
printf("%s:\n", printer);
PRIV_START;
/*
* Turn on the owner execute bit of the lock file to disable printing.
*/
if (dis) {
if (stat(line, &stbuf) >= 0) {
stbuf.st_mode |= S_IXUSR;
if (chmod(line, stbuf.st_mode & 0777) < 0)
printf("\tcannot disable printing\n");
else {
upstat("printing disabled\n");
printf("\tprinting disabled\n");
}
} else if (errno == ENOENT) {
if ((fd = safe_open(line, O_WRONLY|O_CREAT|O_NOFOLLOW,
0760)) < 0)
printf("\tcannot create lock file\n");
else {
(void)fchown(fd, DEFUID, -1);
(void)close(fd);
upstat("printing disabled\n");
printf("\tprinting disabled\n");
printf("\tno daemon to abort\n");
}
goto out;
} else {
printf("\tcannot stat lock file\n");
goto out;
}
}
/*
* Kill the current daemon to stop printing now.
*/
fd = safe_open(line, O_RDONLY|O_NOFOLLOW, 0);
if (fd < 0 || (fp = fdopen(fd, "r")) == NULL) {
if (fd >= 0)
close(fd);
printf("\tcannot open lock file\n");
goto out;
}
if (!get_line(fp) || flock(fileno(fp), LOCK_SH|LOCK_NB) == 0) {
(void)fclose(fp); /* unlocks as well */
printf("\tno daemon to abort\n");
goto out;
}
(void)fclose(fp);
if (kill(pid = atoi(line), SIGTERM) < 0) {
if (errno == ESRCH)
printf("\tno daemon to abort\n");
else
printf("\tWarning: daemon (pid %d) not killed\n", pid);
} else
printf("\tdaemon (pid %d) killed\n", pid);
out:
PRIV_END;
}
