![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/plugins/check_swap.c b/plugins/check_swap.c
index f9dba38f929853e24e9e01243281eedc56101486..b92694d90ef923a87b59047a598d2736561d099f 100644 (file)
--- a/plugins/check_swap.c
+++ b/plugins/check_swap.c
/******************************************************************************
-*
-* CHECK_SWAP.C
-*
-* Program: Process plugin for Nagios
-* License: GPL
-* Copyright (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net)
-*
-* $Id$
-*
-******************************************************************************/
+ *
+ * Program: Swap space plugin for Nagios
+ * License: GPL
+ *
+ * License Information:
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Copyright (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net)
+ *
+ * $Id$
+ *
+ *****************************************************************************/
#include "common.h"
#include "popen.h"
#include "utils.h"
-#define PROGNAME "check_swap"
+const char *progname = "check_swap";
+const char *revision = "$Revision$";
+const char *copyright = "2000-2003";
+const char *email = "nagiosplug-devel@lists.sourceforge.net";
+int check_swap (int usp, int free_swap);
int process_arguments (int argc, char **argv);
-int call_getopt (int argc, char **argv);
int validate_arguments (void);
void print_usage (void);
void print_help (void);
-int warn_percent = 200, crit_percent = 200, warn_size = -1, crit_size = -1;
+int warn_percent = 200;
+int crit_percent = 200;
+long unsigned int warn_size = 0;
+long unsigned int crit_size = 0;
+int verbose;
+int allswaps;
+
+#if !defined(sun)
+int sun = 0; /* defined by compiler if it is a sun solaris system */
+#endif
+
+void
+print_usage (void)
+{
+ printf (_("Usage:\n\
+ %s [-a] -w <used_percentage>%% -c <used_percentage>%%\n\
+ %s [-a] -w <bytes_free> -c <bytes_free>\n\
+ %s (-h | --help) for detailed help\n\
+ %s (-V | --version) for version information\n"),
+ progname, progname, progname, progname);
+}
+
+
+
+
+
+void
+print_help (void)
+{
+ print_revision (progname, revision);
+
+ printf (_(COPYRIGHT), copyright, email);
+
+ printf (_("Check swap space on local server.\n\n"));
+
+ print_usage ();
+
+ printf (_(UT_HELP_VRSN));
+
+ printf (_("\n\
+ -w, --warning=INTEGER\n\
+ Exit with WARNING status if less than INTEGER bytes of swap space are free\n\
+ -w, --warning=PERCENT%%\n\
+ Exit with WARNING status if less than PERCENT of swap space has been used\n\
+ -c, --critical=INTEGER\n\
+ Exit with CRITICAL status if less than INTEGER bytes of swap space are free\n\
+ -c, --critical=PERCENT%%\n\
+ Exit with CRITCAL status if less than PERCENT of swap space has been used\n\
+ -a, --allswaps\n\
+ Conduct comparisons for all swap partitions, one by one\n"));
+
+#ifdef sun
+ printf (_("\n\
+On Solaris, if -a specified, uses swap -l, otherwise uses swap -s.\n\
+Will be discrepencies because swap -s counts allocated swap and includes\n\
+real memory\n"));
+#endif
+
+ support ();
+}
+\f
+
int
main (int argc, char **argv)
{
- int total_swap, used_swap, free_swap, percent_used;
+ int percent_used, percent;
+ long unsigned int total_swap = 0, used_swap = 0, free_swap = 0;
+ long unsigned int dsktotal, dskused, dskfree;
int result = STATE_OK;
char input_buffer[MAX_INPUT_BUFFER];
#ifdef HAVE_SWAP
+ int conv_factor; /* Convert to MBs */
char *temp_buffer;
+ char *swap_command;
+ char *swap_format;
#endif
#ifdef HAVE_PROC_MEMINFO
FILE *fp;
#endif
char str[32];
- char *status = NULL;
+ char *status = "";
if (process_arguments (argc, argv) != OK)
- usage ("Invalid command arguments supplied\n");
+ usage (_("Invalid command arguments supplied\n"));
#ifdef HAVE_PROC_MEMINFO
fp = fopen (PROC_MEMINFO, "r");
- asprintf (&status, "%s", "Swap used:");
while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, fp)) {
- sscanf (input_buffer, " %s %d %d %d", str, &total_swap, &used_swap,
- &free_swap);
- if (strstr (str, "Swap")) {
- percent_used = 100 * (((float) used_swap) / ((float) total_swap));
- asprintf (&status, "%s %2d%% (%d bytes out of %d)",
- status, percent_used, used_swap, total_swap);
- if (percent_used >= crit_percent || free_swap <= crit_size)
- result = STATE_CRITICAL;
- else if (percent_used >= warn_percent || free_swap <= warn_size)
- result = STATE_WARNING;
- break;
- }
- }
- fclose (fp);
-#else
+ if (sscanf (input_buffer, " %s %lu %lu %lu", str, &dsktotal, &dskused, &dskfree) == 4 &&
+ strstr (str, "Swap")) {
+ dsktotal = dsktotal / 1048576;
+ dskused = dskused / 1048576;
+ dskfree = dskfree / 1048576;
+#endif
#ifdef HAVE_SWAP
- child_process = spopen (SWAP_COMMAND);
+ if (!allswaps && sun) {
+ asprintf(&swap_command, "%s", "/usr/sbin/swap -s");
+ asprintf(&swap_format, "%s", "%*s %*dk %*s %*s + %*dk %*s = %dk %*s %dk %*s");
+ conv_factor = 2048;
+ } else {
+ asprintf(&swap_command, "%s", SWAP_COMMAND);
+ asprintf(&swap_format, "%s", SWAP_FORMAT);
+ conv_factor = SWAP_CONVERSION;
+ }
+
+ if (verbose >= 2)
+ printf (_("Command: %s\n"), swap_command);
+ if (verbose >= 3)
+ printf ("_(Format: %s\n"), swap_format);
+
+ child_process = spopen (swap_command);
if (child_process == NULL) {
- printf ("Could not open pipe: %s\n", SWAP_COMMAND);
+ printf (_("Could not open pipe: %s\n"), swap_command);
return STATE_UNKNOWN;
}
child_stderr = fdopen (child_stderr_array[fileno (child_process)], "r");
if (child_stderr == NULL)
- printf ("Could not open stderr for %s\n", SWAP_COMMAND);
+ printf (_("Could not open stderr for %s\n"), swap_command);
sprintf (str, "%s", "");
/* read 1st line */
fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process);
- if (strcmp (SWAP_FORMAT, "") == 0) {
+ if (strcmp (swap_format, "") == 0) {
temp_buffer = strtok (input_buffer, " \n");
while (temp_buffer) {
if (strstr (temp_buffer, "blocks"))
sprintf (str, "%s %s", str, "%f");
- else if (strstr (temp_buffer, "free"))
+ else if (strstr (temp_buffer, "dskfree"))
sprintf (str, "%s %s", str, "%f");
else
sprintf (str, "%s %s", str, "%*s");
}
}
- asprintf (&status, "%s", "Swap used:");
- while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) {
- sscanf (input_buffer, SWAP_FORMAT, &total_swap, &free_swap);
- used_swap = total_swap - free_swap;
- percent_used = 100 * ((float) used_swap) / ((float) total_swap);
- asprintf (&status, "%s %2d%% (%d bytes out of %d)",
- status, percent_used, used_swap, total_swap);
- if (percent_used >= crit_percent || free_swap <= crit_size)
- result = STATE_CRITICAL;
- else if (percent_used >= warn_percent || free_swap <= warn_size)
- result = STATE_WARNING;
+ if (!allswaps && sun) {
+ sscanf (input_buffer, swap_format, &used_swap, &free_swap);
+ used_swap = used_swap / 1024;
+ free_swap = free_swap / 1024;
+ total_swap = used_swap + free_swap;
+ } else {
+ while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) {
+ sscanf (input_buffer, swap_format, &dsktotal, &dskfree);
+
+ dsktotal = dsktotal / conv_factor;
+ dskfree = dskfree / conv_factor;
+ if (verbose >= 3)
+ printf (_("total=%d, free=%d\n"), dsktotal, dskfree);
+
+ dskused = dsktotal - dskfree;
+#endif
+ total_swap += dsktotal;
+ used_swap += dskused;
+ free_swap += dskfree;
+ if (allswaps) {
+ percent = 100 * (((double) dskused) / ((double) dsktotal));
+ result = max_state (result, check_swap (percent, dskfree));
+ if (verbose)
+ asprintf (&status, "%s [%lu (%d%%)]", status, dskfree, 100 - percent);
+ }
+ }
}
+ percent_used = 100 * ((double) used_swap) / ((double) total_swap);
+ result = max_state (result, check_swap (percent_used, free_swap));
+ asprintf (&status, _(" %d%% free (%lu MB out of %lu MB)%s"),
+ (100 - percent_used), free_swap, total_swap, status);
+#ifdef HAVE_PROC_MEMINFO
+ fclose(fp);
+#endif
+#ifdef HAVE_SWAP
/* If we get anything on STDERR, at least set warning */
while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr))
- result = max (result, STATE_WARNING);
+ result = max_state (result, STATE_WARNING);
/* close stderr */
(void) fclose (child_stderr);
/* close the pipe */
if (spclose (child_process))
- result = max (result, STATE_WARNING);
-#endif
+ result = max_state (result, STATE_WARNING);
#endif
-#ifndef SWAP_COMMAND
-#ifndef SWAP_FILE
-#ifndef HAVE_PROC_MEMINFO
+ die (result, "SWAP %s:%s\n", state_text (result), status);
return STATE_UNKNOWN;
-#endif
-#endif
-#endif
-
- if (result == STATE_OK)
- printf ("Swap ok - %s\n", status);
- else if (result == STATE_CRITICAL)
- printf ("CRITICAL - %s\n", status);
- else if (result == STATE_WARNING)
- printf ("WARNING - %s\n", status);
- else if (result == STATE_UNKNOWN)
- printf ("Unable to read output\n");
- else {
- result = STATE_UNKNOWN;
- printf ("UNKNOWN - %s\n", status);
- }
-
- return result;
}
+\f
+int
+check_swap (int usp, int free_swap)
+{
+ int result = STATE_UNKNOWN;
+ if (usp >= 0 && usp >= (100.0 - crit_percent))
+ result = STATE_CRITICAL;
+ else if (crit_size > 0 && (unsigned)free_swap <= crit_size)
+ result = STATE_CRITICAL;
+ else if (usp >= 0 && usp >= (100.0 - warn_percent))
+ result = STATE_WARNING;
+ else if (warn_size > 0 && (unsigned)free_swap <= warn_size)
+ result = STATE_WARNING;
+ else if (usp >= 0.0)
+ result = STATE_OK;
+ return result;
+}
/* process command-line arguments */
int
process_arguments (int argc, char **argv)
{
- int c, i = 0;
+ int c = 0; /* option character */
+ int wc = 0; /* warning counter */
+ int cc = 0; /* critical counter */
-#ifdef HAVE_GETOPT_H
int option_index = 0;
static struct option long_options[] = {
{"warning", required_argument, 0, 'w'},
{"critical", required_argument, 0, 'c'},
+ {"allswaps", no_argument, 0, 'a'},
{"verbose", no_argument, 0, 'v'},
{"version", no_argument, 0, 'V'},
{"help", no_argument, 0, 'h'},
{0, 0, 0, 0}
};
-#endif
if (argc < 2)
return ERROR;
while (1) {
-#ifdef HAVE_GETOPT_H
- c = getopt_long (argc, argv, "+?Vhc:w:", long_options, &option_index);
-#else
- c = getopt (argc, argv, "+?Vhc:w:");
-#endif
+ c = getopt_long (argc, argv, "+?Vvhac:w:", long_options, &option_index);
if (c == -1 || c == EOF)
break;
}
else if (strstr (optarg, ",") &&
strstr (optarg, "%") &&
- sscanf (optarg, "%d,%d%%", &warn_size, &warn_percent) == 2) {
+ sscanf (optarg, "%lu,%d%%", &warn_size, &warn_percent) == 2) {
break;
}
else if (strstr (optarg, "%") &&
break;
}
else {
- usage ("Warning threshold must be integer or percentage!\n");
+ usage (_("Warning threshold must be integer or percentage!\n"));
}
+ wc++;
case 'c': /* critical time threshold */
if (is_intnonneg (optarg)) {
crit_size = atoi (optarg);
}
else if (strstr (optarg, ",") &&
strstr (optarg, "%") &&
- sscanf (optarg, "%d,%d%%", &crit_size, &crit_percent) == 2) {
+ sscanf (optarg, "%lu,%d%%", &crit_size, &crit_percent) == 2) {
break;
}
else if (strstr (optarg, "%") &&
break;
}
else {
- usage ("Critical threshold must be integer or percentage!\n");
+ usage (_("Critical threshold must be integer or percentage!\n"));
}
+ cc++;
+ case 'a': /* all swap */
+ allswaps = TRUE;
+ break;
+ case 'v': /* verbose */
+ verbose++;
+ break;
case 'V': /* version */
- print_revision (my_basename (argv[0]), "$Revision$");
+ print_revision (progname, revision);
exit (STATE_OK);
case 'h': /* help */
print_help ();
exit (STATE_OK);
case '?': /* help */
- usage ("Invalid argument\n");
+ usage (_("Invalid argument\n"));
}
}
if (c == argc)
return validate_arguments ();
- if (warn_size < 0 && is_intnonneg (argv[c]))
+ if (warn_size == 0 && is_intnonneg (argv[c]))
warn_size = atoi (argv[c++]);
if (c == argc)
return validate_arguments ();
- if (crit_size < 0 && is_intnonneg (argv[c]))
+ if (crit_size == 0 && is_intnonneg (argv[c]))
crit_size = atoi (argv[c++]);
return validate_arguments ();
int
validate_arguments (void)
{
- if (warn_percent > 100 && crit_percent > 100 && warn_size < 0
- && crit_size < 0) {
+ if (warn_percent > 100 && crit_percent > 100 && warn_size == 0
+ && crit_size == 0) {
return ERROR;
}
- else if (warn_percent > crit_percent) {
+ else if (warn_percent < crit_percent) {
usage
- ("Warning percentage should not be less than critical percentage\n");
+ (_("Warning percentage should be more than critical percentage\n"));
}
else if (warn_size < crit_size) {
usage
- ("Warning free space should not be more than critical free space\n");
+ (_("Warning free space should be more than critical free space\n"));
}
return OK;
}
-
-
-
-
-
-void
-print_usage (void)
-{
- printf
- ("Usage: check_swap -w <used_percentage>%% -c <used_percentage>%%\n"
- " check_swap -w <bytes_free> -c <bytes_free>\n"
- " check_swap (-V|--version)\n" " check_swap (-h|--help)\n");
-}
-
-
-
-
-
-void
-print_help (void)
-{
- print_revision (PROGNAME, "$Revision$");
- printf
- ("Copyright (c) 2000 Karl DeBisschop\n\n"
- "This plugin will check all of the swap partitions and return an\n"
- "error if the the avalable swap space is less than specified.\n\n");
- print_usage ();
- printf
- ("\nOptions:\n"
- " -w, --warning=INTEGER\n"
- " Exit with WARNING status if less than INTEGER bytes of swap space are free\n"
- " -w, --warning=PERCENT%%\n"
- " Exit with WARNING status if more than PERCENT of swap space has been used\n"
- " -c, --critical=INTEGER\n"
- " Exit with CRITICAL status if less than INTEGER bytes of swap space are free\n"
- " -c, --critical=PERCENT%%\n"
- " Exit with CRITCAL status if more than PERCENT of swap space has been used\n"
- " -h, --help\n"
- " Print detailed help screen\n"
- " -V, --version\n" " Print version information\n\n");
- support ();
-}