int
receive_print_stats (void)
{
struct statdata data;
request_header req;
ssize_t nbytes;
int fd;
int i;
/* Open a socket to the running nscd. */
fd = nscd_open_socket ();
if (fd == -1)
error (EXIT_FAILURE, 0, _("nscd not running!\n"));
/* Send the request. */
req.version = NSCD_VERSION;
req.type = GETSTAT;
req.key_len = 0;
nbytes = TEMP_FAILURE_RETRY (write (fd, &req, sizeof (request_header)));
if (nbytes != sizeof (request_header))
{
int err = errno;
close (fd);
error (EXIT_FAILURE, err, _("write incomplete"));
}
/* Read as much data as we expect. */
if (TEMP_FAILURE_RETRY (read (fd, &data, sizeof (data))) != sizeof (data)
|| (memcmp (data.version, compilation, sizeof (compilation)) != 0
/* Yes, this is an assignment! */
&& errno == EINVAL))
{
/* Not the right version. */
int err = errno;
close (fd);
error (EXIT_FAILURE, err, _("cannot read statistics data"));
}
printf (_("nscd configuration:\n\n%15d server debug level\n"),
data.debug_level);
for (i = 0; i < lastdb; ++i)
{
unsigned long int hit = data.dbs[i].poshit + data.dbs[i].neghit;
unsigned long int all = hit + data.dbs[i].posmiss + data.dbs[i].negmiss;
const char *enabled = nl_langinfo (data.dbs[i].enabled ? YESSTR : NOSTR);
const char *check_file = nl_langinfo (data.dbs[i].check_file
? YESSTR : NOSTR);
if (enabled[0] == '\0')
/* The locale does not provide this information so we have to
translate it ourself. Since we should avoid short translation
terms we artifically increase the length. */
enabled = data.dbs[i].enabled ? _(" yes") : _(" no");
if (check_file[0] == '\0')
check_file = data.dbs[i].check_file ? _(" yes") : _(" no");
if (all == 0)
/* If nothing happened so far report a 0% hit rate. */
all = 1;
printf (_("\n%s cache:\n\n"
"%15s cache is enabled\n"
"%15Zd suggested size\n"
"%15ld seconds time to live for positive entries\n"
"%15ld seconds time to live for negative entries\n"
"%15ld cache hits on positive entries\n"
"%15ld cache hits on negative entries\n"
"%15ld cache misses on positive entries\n"
"%15ld cache misses on negative entries\n"
"%15ld%% cache hit rate\n"
"%15s check /etc/%s for changes\n"),
dbnames[i], enabled,
data.dbs[i].module,
data.dbs[i].postimeout, data.dbs[i].negtimeout,
data.dbs[i].poshit, data.dbs[i].neghit,
data.dbs[i].posmiss, data.dbs[i].negmiss,
(100 * hit) / all,
check_file, dbnames[i]);
}
close (fd);
exit (0);
}
int
receive_print_stats (void)
{
struct statdata data;
request_header req;
ssize_t nbytes;
int fd;
int i;
uid_t uid = getuid ();
const char *yesstr = _("yes");
const char *nostr = _("no");
/* Find out whether there is another user but root allowed to
request statistics. */
if (uid != 0)
{
/* User specified? */
if(stat_user == NULL || stat_uid != uid)
{
if (stat_user != NULL)
error (EXIT_FAILURE, 0,
_("Only root or %s is allowed to use this option!"),
stat_user);
else
error (EXIT_FAILURE, 0,
_("Only root is allowed to use this option!"));
}
}
/* Open a socket to the running nscd. */
fd = nscd_open_socket ();
if (fd == -1)
error (EXIT_FAILURE, 0, _("nscd not running!\n"));
/* Send the request. */
req.version = NSCD_VERSION;
req.type = GETSTAT;
req.key_len = 0;
nbytes = TEMP_FAILURE_RETRY (send (fd, &req, sizeof (request_header),
MSG_NOSIGNAL));
if (nbytes != sizeof (request_header))
{
int err = errno;
close (fd);
error (EXIT_FAILURE, err, _("write incomplete"));
}
/* Read as much data as we expect. */
if (TEMP_FAILURE_RETRY (read (fd, &data, sizeof (data))) != sizeof (data)
|| (memcmp (data.version, compilation, sizeof (compilation)) != 0
/* Yes, this is an assignment! */
&& (errno = EINVAL)))
{
/* Not the right version. */
int err = errno;
close (fd);
error (EXIT_FAILURE, err, _("cannot read statistics data"));
}
printf (_("nscd configuration:\n\n%15d server debug level\n"),
data.debug_level);
/* We know that we can simply subtract time_t values. */
unsigned long int diff = data.runtime;
unsigned int ndays = 0;
unsigned int nhours = 0;
unsigned int nmins = 0;
if (diff > 24 * 60 * 60)
{
ndays = diff / (24 * 60 * 60);
diff %= 24 * 60 * 60;
}
if (diff > 60 * 60)
{
nhours = diff / (60 * 60);
diff %= 60 * 60;
}
if (diff > 60)
{
nmins = diff / 60;
diff %= 60;
}
if (ndays != 0)
printf (_("%3ud %2uh %2um %2lus server runtime\n"),
ndays, nhours, nmins, diff);
else if (nhours != 0)
printf (_(" %2uh %2um %2lus server runtime\n"), nhours, nmins, diff);
else if (nmins != 0)
printf (_(" %2um %2lus server runtime\n"), nmins, diff);
else
printf (_(" %2lus server runtime\n"), diff);
printf (_("%15d current number of threads\n"
"%15d maximum number of threads\n"
"%15lu number of times clients had to wait\n"
"%15s paranoia mode enabled\n"
"%15lu restart internal\n"
"%15u reload count\n"),
data.nthreads, data.max_nthreads, data.client_queued,
data.paranoia ? yesstr : nostr,
(unsigned long int) data.restart_interval, data.reload_count);
for (i = 0; i < lastdb; ++i)
{
unsigned long int hit = data.dbs[i].poshit + data.dbs[i].neghit;
unsigned long int all = hit + data.dbs[i].posmiss + data.dbs[i].negmiss;
const char *enabled = data.dbs[i].enabled ? yesstr : nostr;
const char *check_file = data.dbs[i].check_file ? yesstr : nostr;
const char *shared = data.dbs[i].shared ? yesstr : nostr;
const char *persistent = data.dbs[i].persistent ? yesstr : nostr;
if (enabled[0] == '\0')
/* The locale does not provide this information so we have to
translate it ourself. Since we should avoid short translation
terms we artifically increase the length. */
enabled = data.dbs[i].enabled ? yesstr : nostr;
if (check_file[0] == '\0')
check_file = data.dbs[i].check_file ? yesstr : nostr;
if (shared[0] == '\0')
shared = data.dbs[i].shared ? yesstr : nostr;
if (persistent[0] == '\0')
persistent = data.dbs[i].persistent ? yesstr : nostr;
if (all == 0)
/* If nothing happened so far report a 0% hit rate. */
all = 1;
printf (_("\n%s cache:\n\n"
"%15s cache is enabled\n"
"%15s cache is persistent\n"
"%15s cache is shared\n"
"%15zu suggested size\n"
"%15zu total data pool size\n"
"%15zu used data pool size\n"
"%15lu seconds time to live for positive entries\n"
"%15lu seconds time to live for negative entries\n"
"%15" PRIuMAX " cache hits on positive entries\n"
"%15" PRIuMAX " cache hits on negative entries\n"
"%15" PRIuMAX " cache misses on positive entries\n"
"%15" PRIuMAX " cache misses on negative entries\n"
"%15lu%% cache hit rate\n"
"%15zu current number of cached values\n"
"%15zu maximum number of cached values\n"
"%15zu maximum chain length searched\n"
"%15" PRIuMAX " number of delays on rdlock\n"
"%15" PRIuMAX " number of delays on wrlock\n"
"%15" PRIuMAX " memory allocations failed\n"
"%15s check /etc/%s for changes\n"),
dbnames[i], enabled, persistent, shared,
data.dbs[i].module,
data.dbs[i].datasize, data.dbs[i].dataused,
data.dbs[i].postimeout, data.dbs[i].negtimeout,
data.dbs[i].poshit, data.dbs[i].neghit,
data.dbs[i].posmiss, data.dbs[i].negmiss,
(100 * hit) / all,
data.dbs[i].nentries, data.dbs[i].maxnentries,
data.dbs[i].maxnsearched,
data.dbs[i].rdlockdelayed,
data.dbs[i].wrlockdelayed,
data.dbs[i].addfailed, check_file, dbnames[i]);
}
if (selinux_enabled)
nscd_avc_print_stats (&data.cstats);
close (fd);
exit (0);
}
