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diff --git a/plugins/check_swap.c b/plugins/check_swap.c
index 2b71fd2106ec11f5e1bf0390019c372c18760b83..a3f4df4482c012b74f23ced67be7845d4cc43cd5 100644 (file)
--- a/plugins/check_swap.c
+++ b/plugins/check_swap.c
*
*****************************************************************************/
-#include "common.h"
-#include "popen.h"
-#include "utils.h"
-
const char *progname = "check_swap";
const char *revision = "$Revision$";
-const char *copyright = "2000-2003";
+const char *copyright = "2000-2004";
const char *email = "nagiosplug-devel@lists.sourceforge.net";
-int check_swap (int usp, long unsigned int free_swap);
+#include "common.h"
+#include "popen.h"
+#include "utils.h"
+
+int check_swap (int usp, float free_swap);
int process_arguments (int argc, char **argv);
int validate_arguments (void);
void print_usage (void);
void print_help (void);
-int warn_percent = 200;
-int crit_percent = 200;
-long unsigned int warn_size = 0;
-long unsigned int crit_size = 0;
+int warn_percent = 0;
+int crit_percent = 0;
+double warn_size = 0;
+double crit_size = 0;
int verbose;
int allswaps;
main (int argc, char **argv)
{
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;
+ float total_swap = 0, used_swap = 0, free_swap = 0;
+ float dsktotal = 0, dskused = 0, dskfree = 0, tmp = 0;
+ int result = STATE_UNKNOWN;
char input_buffer[MAX_INPUT_BUFFER];
+ char *perf;
#ifdef HAVE_PROC_MEMINFO
FILE *fp;
#else
+ int conv_factor = SWAP_CONVERSION;
# ifdef HAVE_SWAP
- int conv_factor; /* Convert to MBs */
char *temp_buffer;
char *swap_command;
char *swap_format;
+# else
+# ifdef HAVE_DECL_SWAPCTL
+ int i=0, nswaps=0, swapctl_res=0;
+# ifdef CHECK_SWAP_SWAPCTL_SVR4
+ swaptbl_t *tbl=NULL;
+ swapent_t *ent=NULL;
+# else
+# ifdef CHECK_SWAP_SWAPCTL_BSD
+ struct swapent *ent;
+# endif /* CHECK_SWAP_SWAPCTL_BSD */
+# endif /* CHECK_SWAP_SWAPCTL_SVR4 */
+# endif /* HAVE_DECL_SWAPCTL */
# endif
#endif
char str[32];
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
- status = strdup("");
+ status = strdup ("");
+ perf = strdup ("");
- if (process_arguments (argc, argv) != OK)
- usage (_("Invalid command arguments supplied\n"));
+ if (process_arguments (argc, argv) == ERROR)
+ usage4 (_("Could not parse arguments"));
#ifdef HAVE_PROC_MEMINFO
fp = fopen (PROC_MEMINFO, "r");
while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, fp)) {
- if (sscanf (input_buffer, " %s %lu %lu %lu", str, &dsktotal, &dskused, &dskfree) == 4 &&
- strstr (str, "Swap")) {
+ if (sscanf (input_buffer, "%*[S]%*[w]%*[a]%*[p]%*[:] %f %f %f", &dsktotal, &dskused, &dskfree) == 3) {
dsktotal = dsktotal / 1048576;
dskused = dskused / 1048576;
dskfree = dskfree / 1048576;
used_swap += dskused;
free_swap += dskfree;
if (allswaps) {
- percent = 100 * (((double) dskused) / ((double) dsktotal));
+ if (dsktotal == 0)
+ percent=100.0;
+ else
+ 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);
+ asprintf (&status, "%s [%.0f (%d%%)]", status, dskfree, 100 - percent);
+ }
+ }
+ else if (sscanf (input_buffer, "%*[S]%*[w]%*[a]%*[p]%[TotalFre]%*[:] %f %*[k]%*[B]", str, &tmp)) {
+ if (strcmp ("Total", str) == 0) {
+ dsktotal = tmp / 1024;
+ }
+ else if (strcmp ("Free", str) == 0) {
+ dskfree = tmp / 1024;
}
}
}
fclose(fp);
+ dskused = dsktotal - dskfree;
+ total_swap = dsktotal;
+ used_swap = dskused;
+ free_swap = dskfree;
#else
# ifdef HAVE_SWAP
+ asprintf(&swap_command, "%s", SWAP_COMMAND);
+ asprintf(&swap_format, "%s", SWAP_FORMAT);
+
+/* These override the command used if a summary (and thus ! allswaps) is required */
+/* The summary flag returns more accurate information about swap usage on these OSes */
+# ifdef _AIX
if (!allswaps) {
-#ifdef _AIX
asprintf(&swap_command, "%s", "/usr/sbin/lsps -s");
- asprintf(&swap_format, "%s", "%d%*s %d");
+ asprintf(&swap_format, "%s", "%f%*s %f");
conv_factor = 1;
-#else
-# ifdef 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;
-# endif
-#endif
- } else {
- asprintf(&swap_command, "%s", SWAP_COMMAND);
- asprintf(&swap_format, "%s", SWAP_FORMAT);
- conv_factor = SWAP_CONVERSION;
}
+# endif
if (verbose >= 2)
printf (_("Command: %s\n"), swap_command);
}
}
+/* If different swap command is used for summary switch, need to read format differently */
+# ifdef _AIX
if (!allswaps) {
-#ifdef _AIX
fgets(input_buffer, MAX_INPUT_BUFFER - 1, child_process); /* Ignore first line */
sscanf (input_buffer, swap_format, &total_swap, &used_swap);
free_swap = total_swap * (100 - used_swap) /100;
used_swap = total_swap - free_swap;
if (verbose >= 3)
- printf (_("total=%d, used=%d, free=%d\n"), total_swap, used_swap, free_swap);
-#else
-# ifdef 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;
-# endif
-#endif
+ printf (_("total=%.0f, used=%.0f, free=%.0f\n"), total_swap, used_swap, free_swap);
} else {
+# endif
while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) {
sscanf (input_buffer, swap_format, &dsktotal, &dskfree);
dsktotal = dsktotal / conv_factor;
/* AIX lists percent used, so this converts to dskfree in MBs */
-#ifdef _AIX
+# ifdef _AIX
dskfree = dsktotal * (100 - dskfree) / 100;
-#else
+# else
dskfree = dskfree / conv_factor;
-#endif
+# endif
if (verbose >= 3)
- printf (_("total=%d, free=%d\n"), dsktotal, dskfree);
+ printf (_("total=%.0f, free=%.0f\n"), dsktotal, dskfree);
dskused = dsktotal - dskfree;
total_swap += dsktotal;
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);
+ asprintf (&status, "%s [%.0f (%d%%)]", status, dskfree, 100 - percent);
}
}
+# ifdef _AIX
}
+# endif
+
/* If we get anything on STDERR, at least set warning */
while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr))
result = max_state (result, STATE_WARNING);
/* close the pipe */
if (spclose (child_process))
result = max_state (result, STATE_WARNING);
-# endif
-#endif
+# else
+# ifdef CHECK_SWAP_SWAPCTL_SVR4
+
+ /* get the number of active swap devices */
+ nswaps=swapctl(SC_GETNSWP, NULL);
+
+ /* initialize swap table + entries */
+ tbl=(swaptbl_t*)malloc(sizeof(swaptbl_t)+(sizeof(swapent_t)*nswaps));
+ memset(tbl, 0, sizeof(swaptbl_t)+(sizeof(swapent_t)*nswaps));
+ tbl->swt_n=nswaps;
+ for(i=0;i<nswaps;i++){
+ ent=&tbl->swt_ent[i];
+ ent->ste_path=(char*)malloc(sizeof(char)*MAXPATHLEN);
+ }
+
+ /* and now, tally 'em up */
+ swapctl_res=swapctl(SC_LIST, tbl);
+ if(swapctl_res < 0){
+ perror(_("swapctl failed: "));
+ result = STATE_WARNING;
+ }
+
+ for(i=0;i<nswaps;i++){
+ dsktotal = (float) tbl->swt_ent[i].ste_pages / SWAP_CONVERSION;
+ dskfree = (float) tbl->swt_ent[i].ste_free / SWAP_CONVERSION;
+ dskused = ( dsktotal - dskfree );
+
+ if (verbose >= 3)
+ printf ("dsktotal=%.0f dskfree=%.0f dskused=%.0f\n", dsktotal, dskfree, dskused);
+
+ if(allswaps && dsktotal > 0){
+ percent = 100 * (((double) dskused) / ((double) dsktotal));
+ result = max_state (result, check_swap (percent, dskfree));
+ if (verbose) {
+ asprintf (&status, "%s [%.0f (%d%%)]", status, dskfree, 100 - percent);
+ }
+ }
+
+ total_swap += dsktotal;
+ free_swap += dskfree;
+ used_swap += dskused;
+ }
+
+ /* and clean up after ourselves */
+ for(i=0;i<nswaps;i++){
+ free(tbl->swt_ent[i].ste_path);
+ }
+ free(tbl);
+# else
+# ifdef CHECK_SWAP_SWAPCTL_BSD
+
+ /* get the number of active swap devices */
+ nswaps=swapctl(SWAP_NSWAP, NULL, 0);
+
+ /* initialize swap table + entries */
+ ent=(struct swapent*)malloc(sizeof(struct swapent)*nswaps);
+
+ /* and now, tally 'em up */
+ swapctl_res=swapctl(SWAP_STATS, ent, nswaps);
+ if(swapctl_res < 0){
+ perror(_("swapctl failed: "));
+ result = STATE_WARNING;
+ }
+
+ for(i=0;i<nswaps;i++){
+ dsktotal = (float) ent->se_nblks / conv_factor;
+ dskused = (float) ent->se_inuse / conv_factor;
+ dskfree = ( dsktotal - dskused );
+
+ if(allswaps && dsktotal > 0){
+ percent = 100 * (((double) dskused) / ((double) dsktotal));
+ result = max_state (result, check_swap (percent, dskfree));
+ if (verbose) {
+ asprintf (&status, "%s [%.0f (%d%%)]", status, dskfree, 100 - percent);
+ }
+ }
+
+ total_swap += dsktotal;
+ free_swap += dskfree;
+ used_swap += dskused;
+ }
+
+ /* and clean up after ourselves */
+ free(ent);
+
+# endif /* CHECK_SWAP_SWAPCTL_BSD */
+# endif /* CHECK_SWAP_SWAPCTL_SVR4 */
+# endif /* HAVE_SWAP */
+#endif /* HAVE_PROC_MEMINFO */
+
+ /* if total_swap == 0, let's not divide by 0 */
+ if(total_swap) {
+ percent_used = 100 * ((double) used_swap) / ((double) total_swap);
+ } else {
+ percent_used = 0;
+ }
- 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);
+ printf (_("SWAP %s - %d%% free (%.0f MB out of %.0f MB) %s|"),
+ state_text (result),
+ (100 - percent_used), free_swap, total_swap, status);
+
+ puts (perfdata ("swap", (long) free_swap, "MB",
+ TRUE, (long) max (warn_size/1024, warn_percent/100.0*total_swap),
+ TRUE, (long) max (crit_size/1024, crit_percent/100.0*total_swap),
+ TRUE, 0,
+ TRUE, (long) total_swap));
- die (result, "SWAP %s:%s\n", state_text (result), status);
- return STATE_UNKNOWN;
+ return result;
}
-\f
int
-check_swap (int usp, long unsigned int free_swap)
+check_swap (int usp, float free_swap)
{
int result = STATE_UNKNOWN;
- if (usp >= 0 && usp >= (100.0 - crit_percent))
+ free_swap = free_swap * 1024; /* Convert back to bytes as warn and crit specified in bytes */
+ if (usp >= 0 && crit_percent != 0 && usp >= (100.0 - crit_percent))
result = STATE_CRITICAL;
else if (crit_size > 0 && free_swap <= crit_size)
result = STATE_CRITICAL;
- else if (usp >= 0 && usp >= (100.0 - warn_percent))
+ else if (usp >= 0 && warn_percent != 0 && usp >= (100.0 - warn_percent))
result = STATE_WARNING;
else if (warn_size > 0 && free_swap <= warn_size)
result = STATE_WARNING;
}
+
/* process command-line arguments */
int
process_arguments (int argc, char **argv)
switch (c) {
case 'w': /* warning size threshold */
if (is_intnonneg (optarg)) {
- warn_size = atoi (optarg);
+ warn_size = (double) atoi (optarg);
break;
}
else if (strstr (optarg, ",") &&
strstr (optarg, "%") &&
- sscanf (optarg, "%lu,%d%%", &warn_size, &warn_percent) == 2) {
+ sscanf (optarg, "%g,%d%%", &warn_size, &warn_percent) == 2) {
+ warn_size = floor(warn_size);
break;
}
else if (strstr (optarg, "%") &&
break;
}
else {
- usage (_("Warning threshold must be integer or percentage!\n"));
+ usage4 (_("Warning threshold must be integer or percentage!"));
}
case 'c': /* critical size threshold */
if (is_intnonneg (optarg)) {
- crit_size = atoi (optarg);
+ crit_size = (double) atoi (optarg);
break;
}
else if (strstr (optarg, ",") &&
strstr (optarg, "%") &&
- sscanf (optarg, "%lu,%d%%", &crit_size, &crit_percent) == 2) {
+ sscanf (optarg, "%g,%d%%", &crit_size, &crit_percent) == 2) {
+ crit_size = floor(crit_size);
break;
}
else if (strstr (optarg, "%") &&
break;
}
else {
- usage (_("Critical threshold must be integer or percentage!\n"));
+ usage4 (_("Critical threshold must be integer or percentage!"));
}
case 'a': /* all swap */
allswaps = TRUE;
case 'h': /* help */
print_help ();
exit (STATE_OK);
- case '?': /* help */
- usage (_("Invalid argument\n"));
+ case '?': /* error */
+ usage2 (_("Unknown argument"), optarg);
}
}
c = optind;
if (c == argc)
return validate_arguments ();
- if (warn_percent > 100 && is_intnonneg (argv[c]))
+ if (warn_percent == 0 && is_intnonneg (argv[c]))
warn_percent = atoi (argv[c++]);
if (c == argc)
return validate_arguments ();
- if (crit_percent > 100 && is_intnonneg (argv[c]))
+ if (crit_percent == 0 && is_intnonneg (argv[c]))
crit_percent = atoi (argv[c++]);
if (c == argc)
return validate_arguments ();
if (warn_size == 0 && is_intnonneg (argv[c]))
- warn_size = atoi (argv[c++]);
+ warn_size = (double) atoi (argv[c++]);
if (c == argc)
return validate_arguments ();
if (crit_size == 0 && is_intnonneg (argv[c]))
- crit_size = atoi (argv[c++]);
+ crit_size = (double) atoi (argv[c++]);
return validate_arguments ();
}
-
-
int
validate_arguments (void)
{
- if (warn_percent > 100 && crit_percent > 100 && warn_size == 0
+ if (warn_percent == 0 && crit_percent == 0 && warn_size == 0
&& crit_size == 0) {
return ERROR;
}
else if (warn_percent < crit_percent) {
- usage
- (_("Warning percentage should be more than critical percentage\n"));
+ usage4
+ (_("Warning percentage should be more than critical percentage"));
}
else if (warn_size < crit_size) {
- usage
- (_("Warning free space should be more than critical free space\n"));
+ usage4
+ (_("Warning free space should be more than critical free space"));
}
return OK;
}
-
-
-\f
void
print_help (void)
{
printf (_(COPYRIGHT), copyright, email);
- printf (_("Check swap space on local server.\n\n"));
+ printf (_("Check swap space on local machine.\n\n"));
print_usage ();
-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\
+ Exit with WARNING status if less than PERCENT of swap space is free\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\
+ Exit with CRITCAL status if less than PERCENT of swap space is free\n\
-a, --allswaps\n\
- Conduct comparisons for all swap partitions, one by one\n"));
+ Conduct comparisons for all swap partitions, one by one\n\
+ -v, --verbose\n\
+ Verbose output. Up to 3 levels\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
-#ifdef _AIX
printf (_("\n\
On AIX, if -a is specified, uses lsps -a, otherwise uses lsps -s.\n"));
-#endif
printf (_(UT_SUPPORT));
}
-
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);
+ printf ("\
+Usage: %s [-av] -w <percent_free>%% -c <percent_free>%%\n\
+ %s [-av] -w <bytes_free> -c <bytes_free>\n", progname, progname);
}