X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=plugins%2Fcheck_swap.c;h=aeeb9ba0a8872044e55dc1064a91f00c38cbac0e;hb=9d878eab82bede19e80b4aa9ce1409da3ba6d658;hp=2b71fd2106ec11f5e1bf0390019c372c18760b83;hpb=4fe50f4297fa4b34d28c2d39ab83e5d2db4e1193;p=nagiosplug.git

diff --git a/plugins/check_swap.c b/plugins/check_swap.c
index 2b71fd2..aeeb9ba 100644
--- a/plugins/check_swap.c
+++ b/plugins/check_swap.c
@@ -25,25 +25,25 @@
  *
  *****************************************************************************/
 
-#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;
 
@@ -51,18 +51,30 @@ int
 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];
 #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];
@@ -72,16 +84,15 @@ main (int argc, char **argv)
 	bindtextdomain (PACKAGE, LOCALEDIR);
 	textdomain (PACKAGE);
 
-	status = strdup("");
+	status = 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;
@@ -89,33 +100,43 @@ main (int argc, char **argv)
 			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);
@@ -148,35 +169,29 @@ main (int argc, char **argv)
 		}
 	}
 
+/* 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;
@@ -186,10 +201,13 @@ main (int argc, char **argv)
 				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);
@@ -200,30 +218,129 @@ main (int argc, char **argv)
 	/* 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;
 }
 
 
 
-
 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;
@@ -233,6 +350,7 @@ check_swap (int usp, long unsigned int free_swap)
 }
 
 
+
 /* process command-line arguments */
 int
 process_arguments (int argc, char **argv)
@@ -262,12 +380,13 @@ 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, "%") &&
@@ -275,16 +394,17 @@ process_arguments (int argc, char **argv)
 				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, "%") &&
@@ -292,7 +412,7 @@ process_arguments (int argc, char **argv)
 				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;
@@ -306,62 +426,57 @@ process_arguments (int argc, char **argv)
 		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;
 }
 
 
 
-
-
-
 void
 print_help (void)
 {
@@ -369,7 +484,7 @@ 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 ();
 
@@ -379,38 +494,28 @@ print_help (void)
  -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);
 }