X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=plugins%2Fcheck_swap.c;h=a3f4df4482c012b74f23ced67be7845d4cc43cd5;hb=9ea5f808f64b044e76473795cd80c11edbf3eb17;hp=b213c964fb805d7ad52ce5eeaeaa8ab3de88b459;hpb=0c3386274ef5002dffc20337ef02407f24d7400c;p=nagiosplug.git

diff --git a/plugins/check_swap.c b/plugins/check_swap.c
index b213c96..a3f4df4 100644
--- a/plugins/check_swap.c
+++ b/plugins/check_swap.c
@@ -25,97 +25,145 @@
  *
  *****************************************************************************/
 
+const char *progname = "check_swap";
+const char *revision = "$Revision$";
+const char *copyright = "2000-2004";
+const char *email = "nagiosplug-devel@lists.sourceforge.net";
+
 #include "common.h"
 #include "popen.h"
 #include "utils.h"
 
-const char *progname = "check_swap";
-#define REVISION "$Revision$"
-#define COPYRIGHT "2000-2002"
-#define AUTHOR "Karl DeBisschop"
-#define EMAIL "kdebisschop@users.sourceforge.net"
-#define SUMMARY "Check swap space on local server.\n"
-
+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;
-int warn_size = -1;
-int crit_size = -1;
+int warn_percent = 0;
+int crit_percent = 0;
+double warn_size = 0;
+double crit_size = 0;
 int verbose;
 int allswaps;
 
 int
 main (int argc, char **argv)
 {
-	int total_swap = 0, used_swap = 0, free_swap = 0, percent_used;
-	int total, used, free, percent;
-	int result = STATE_OK;
+	int percent_used, percent;
+	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_SWAP
-	char *temp_buffer;
-#endif
+	char *perf;
 #ifdef HAVE_PROC_MEMINFO
 	FILE *fp;
+#else
+	int conv_factor = SWAP_CONVERSION;
+# ifdef HAVE_SWAP
+	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];
-	char *status = "";
+	char *status;
+
+	setlocale (LC_ALL, "");
+	bindtextdomain (PACKAGE, LOCALEDIR);
+	textdomain (PACKAGE);
 
-	if (process_arguments (argc, argv) != OK)
-		usage ("Invalid command arguments supplied\n");
+	status = strdup ("");
+	perf = strdup ("");
+
+	if (process_arguments (argc, argv) == ERROR)
+		usage4 (_("Could not parse arguments"));
 
 #ifdef HAVE_PROC_MEMINFO
 	fp = fopen (PROC_MEMINFO, "r");
-	asprintf (&status, "%s", "Swap used:");
 	while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, fp)) {
-		if (sscanf (input_buffer, " %s %d %d %d", str, &total, &used, &free) == 4 &&
-		    strstr (str, "Swap")) {
-			total_swap += total;
-			used_swap += used;
-			free_swap += free;
+		if (sscanf (input_buffer, "%*[S]%*[w]%*[a]%*[p]%*[:] %f %f %f", &dsktotal, &dskused, &dskfree) == 3) {
+			dsktotal = dsktotal / 1048576;
+			dskused = dskused / 1048576;
+			dskfree = dskfree / 1048576;
+			total_swap += dsktotal;
+			used_swap += dskused;
+			free_swap += dskfree;
 			if (allswaps) {
-				percent = 100 * (((float) used) / ((float) total));
-				if (percent >= crit_percent || free <= crit_size)
-					result = max_state (STATE_CRITICAL, result);
-				else if (percent >= warn_percent || free <= warn_size)
-					result = max_state (STATE_WARNING, result);
+				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 [%d/%d]", status, used, total);
+					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;
 			}
 		}
 	}
-	percent_used = 100 * (((float) used_swap) / ((float) total_swap));
-	if (percent_used >= crit_percent || free_swap <= crit_size)
-		result = max_state (STATE_CRITICAL, result);
-	else if (percent_used >= warn_percent || free_swap <= warn_size)
-		result = max_state (STATE_WARNING, result);
-	asprintf (&status, "%s %2d%% (%d out of %d)", status, percent_used,
-	          used_swap, total_swap);
-	fclose (fp);
+	fclose(fp);
+	dskused = dsktotal - dskfree;
+	total_swap = dsktotal;
+	used_swap = dskused;
+	free_swap = dskfree;
 #else
-#ifdef HAVE_SWAP
-	child_process = spopen (SWAP_COMMAND);
+# 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) {
+		asprintf(&swap_command, "%s", "/usr/sbin/lsps -s");
+		asprintf(&swap_format, "%s", "%f%*s %f");
+		conv_factor = 1;
+	}
+#  endif
+
+	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");
@@ -123,30 +171,44 @@ main (int argc, char **argv)
 		}
 	}
 
-	asprintf (&status, "%s", "Swap used:");
-	while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) {
-		sscanf (input_buffer, SWAP_FORMAT, &total, &free);
-		used = total - free;
-		total_swap += total;
-		used_swap += used;
-		free_swap += free;
-		if (allswaps) {
-			percent = 100 * (((float) used) / ((float) total));
-			if (percent >= crit_percent || free <= crit_size)
-				result = max_state (STATE_CRITICAL, result);
-			else if (percent >= warn_percent || free <= warn_size)
-				result = max_state (STATE_WARNING, result);
-			if (verbose)
-				asprintf (&status, "%s [%d/%d]", status, used, total);
+/* If different swap command is used for summary switch, need to read format differently */
+#  ifdef _AIX
+	if (!allswaps) {
+		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=%.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
+			dskfree = dsktotal * (100 - dskfree) / 100;
+#  else
+			dskfree = dskfree / conv_factor;
+#  endif
+			if (verbose >= 3)
+				printf (_("total=%.0f, free=%.0f\n"), dsktotal, dskfree);
+
+			dskused = dsktotal - dskfree;
+			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 [%.0f (%d%%)]", status, dskfree, 100 - percent);
+			}
 		}
+#  ifdef _AIX
 	}
-	percent_used = 100 * ((float) used_swap) / ((float) total_swap);
-	asprintf (&status, "%s %2d%% (%d out of %d)",
-						status, percent_used, used_swap, total_swap);
-	if (percent_used >= crit_percent || free_swap <= crit_size)
-		result = max_state (STATE_CRITICAL, result);
-	else if (percent_used >= warn_percent || free_swap <= warn_size)
-		result = max_state (STATE_WARNING, result);
+#  endif
 
 	/* If we get anything on STDERR, at least set warning */
 	while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr))
@@ -158,35 +220,137 @@ 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);
+	}
 
-#ifndef SWAP_COMMAND
-#ifndef SWAP_FILE
-#ifndef HAVE_PROC_MEMINFO
-	return STATE_UNKNOWN;
-#endif
-#endif
-#endif
+	/* 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 (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);
+		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;
+	}
+
+	result = max_state (result, check_swap (percent_used, free_swap));
+	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));
+
 	return result;
 }
 
 
 
+int
+check_swap (int usp, float free_swap)
+{
+	int result = STATE_UNKNOWN;
+	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 && warn_percent != 0 && usp >= (100.0 - warn_percent))
+		result = STATE_WARNING;
+	else if (warn_size > 0 && free_swap <= warn_size)
+		result = STATE_WARNING;
+	else if (usp >= 0.0)
+		result = STATE_OK;
+	return result;
+}
+
 
 
 /* process command-line arguments */
@@ -194,44 +358,37 @@ int
 process_arguments (int argc, char **argv)
 {
 	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[] = {
+	int option = 0;
+	static struct option longopts[] = {
 		{"warning", required_argument, 0, 'w'},
 		{"critical", required_argument, 0, 'c'},
-		{"all", no_argument, 0, 'a'},
+		{"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, "+?Vvhac:w:", long_options, &option_index);
-#else
-		c = getopt (argc, argv, "+?Vvhac:w:");
-#endif
+		c = getopt_long (argc, argv, "+?Vvhac:w:", longopts, &option);
 
 		if (c == -1 || c == EOF)
 			break;
 
 		switch (c) {
-		case 'w':									/* warning time threshold */
+		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, "%d,%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, "%") &&
@@ -239,17 +396,17 @@ 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!"));
 			}
-			wc++;
-		case 'c':									/* critical time threshold */
+		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, "%d,%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, "%") &&
@@ -257,113 +414,110 @@ 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!"));
 			}
-			cc++;
-		case 'a':									/* verbose */
+		case 'a':									/* all swap */
 			allswaps = TRUE;
 			break;
 		case 'v':									/* verbose */
-			verbose = TRUE;
+			verbose++;
 			break;
 		case 'V':									/* version */
-			print_revision (progname, "$Revision$");
+			print_revision (progname, revision);
 			exit (STATE_OK);
 		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++]);
+	if (warn_size == 0 && is_intnonneg (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++]);
+	if (crit_size == 0 && is_intnonneg (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
-			&& crit_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 not be less than critical percentage\n");
+	else if (warn_percent < crit_percent) {
+		usage4 
+			(_("Warning percentage should be more than critical percentage"));
 	}
 	else if (warn_size < crit_size) {
-		usage
-			("Warning free space should not be more than critical free space\n");
+		usage4
+			(_("Warning free space should be more than critical free space"));
 	}
 	return OK;
 }
 
 
 
-
-
 void
-print_usage (void)
+print_help (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);
-}
+	print_revision (progname, revision);
+
+	printf (_(COPYRIGHT), copyright, email);
 
+	printf (_("Check swap space on local machine.\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 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 is free\n\
+ -a, --allswaps\n\
+    Conduct comparisons for all swap partitions, one by one\n\
+ -v, --verbose\n\
+    Verbose output. Up to 3 levels\n"));
+
+	printf (_("\n\
+On AIX, if -a is specified, uses lsps -a, otherwise uses lsps -s.\n"));
+
+	printf (_(UT_SUPPORT));
+}
 
 
 
 void
-print_help (void)
+print_usage (void)
 {
-	print_revision (progname, REVISION);
-	printf
-		("Copyright (c) %s %s <%s>\n\n%s\n", COPYRIGHT, AUTHOR, EMAIL, SUMMARY);
-	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"
-		 " -a, --allswaps\n"
-		 "    Conduct comparisons for all swap partitions, one by one\n"
-		 " -h, --help\n"
-		 "    Print detailed help screen\n"
-		 " -V, --version\n" "    Print version information\n\n");
-	support ();
+	printf ("\
+Usage: %s [-av] -w <percent_free>%% -c <percent_free>%%\n\
+       %s [-av] -w <bytes_free> -c <bytes_free>\n", progname, progname);
 }