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| author | RincewindsHat <12514511+RincewindsHat@users.noreply.github.com> | 2023-09-18 22:59:46 +0200 | 
|---|---|---|
| committer | RincewindsHat <12514511+RincewindsHat@users.noreply.github.com> | 2023-09-18 22:59:46 +0200 | 
| commit | 0e70e81133c25274fe2dd2309556b41357dd759b (patch) | |
| tree | 9a680b36788ee1ad4e7ecc5ccfeb4494db9fdc72 /plugins/check_swap.c | |
| parent | ce355c80cf6054bfa5e1dcf81f9e2183ef963ee1 (diff) | |
| parent | 2ddc75e69db5a3dd379c896d8420c9af20ec1cee (diff) | |
| download | monitoring-plugins-0e70e81133c25274fe2dd2309556b41357dd759b.tar.gz | |
Merge branch 'master' into mysql_detect_mysqldump
Diffstat (limited to 'plugins/check_swap.c')
| -rw-r--r-- | plugins/check_swap.c | 93 | 
1 files changed, 47 insertions, 46 deletions
| diff --git a/plugins/check_swap.c b/plugins/check_swap.c index 685c2cc5..cd965e31 100644 --- a/plugins/check_swap.c +++ b/plugins/check_swap.c | |||
| @@ -1,30 +1,30 @@ | |||
| 1 | /***************************************************************************** | 1 | /***************************************************************************** | 
| 2 | * | 2 | * | 
| 3 | * Monitoring check_swap plugin | 3 | * Monitoring check_swap plugin | 
| 4 | * | 4 | * | 
| 5 | * License: GPL | 5 | * License: GPL | 
| 6 | * Copyright (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net) | 6 | * Copyright (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net) | 
| 7 | * Copyright (c) 2000-2007 Monitoring Plugins Development Team | 7 | * Copyright (c) 2000-2007 Monitoring Plugins Development Team | 
| 8 | * | 8 | * | 
| 9 | * Description: | 9 | * Description: | 
| 10 | * | 10 | * | 
| 11 | * This file contains the check_swap plugin | 11 | * This file contains the check_swap plugin | 
| 12 | * | 12 | * | 
| 13 | * | 13 | * | 
| 14 | * This program is free software: you can redistribute it and/or modify | 14 | * This program is free software: you can redistribute it and/or modify | 
| 15 | * it under the terms of the GNU General Public License as published by | 15 | * it under the terms of the GNU General Public License as published by | 
| 16 | * the Free Software Foundation, either version 3 of the License, or | 16 | * the Free Software Foundation, either version 3 of the License, or | 
| 17 | * (at your option) any later version. | 17 | * (at your option) any later version. | 
| 18 | * | 18 | * | 
| 19 | * This program is distributed in the hope that it will be useful, | 19 | * This program is distributed in the hope that it will be useful, | 
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | 
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 
| 22 | * GNU General Public License for more details. | 22 | * GNU General Public License for more details. | 
| 23 | * | 23 | * | 
| 24 | * You should have received a copy of the GNU General Public License | 24 | * You should have received a copy of the GNU General Public License | 
| 25 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | 25 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | 
| 26 | * | 26 | * | 
| 27 | * | 27 | * | 
| 28 | *****************************************************************************/ | 28 | *****************************************************************************/ | 
| 29 | 29 | ||
| 30 | const char *progname = "check_swap"; | 30 | const char *progname = "check_swap"; | 
| @@ -34,9 +34,6 @@ const char *email = "devel@monitoring-plugins.org"; | |||
| 34 | #include "common.h" | 34 | #include "common.h" | 
| 35 | #include "popen.h" | 35 | #include "popen.h" | 
| 36 | #include "utils.h" | 36 | #include "utils.h" | 
| 37 | #include <string.h> | ||
| 38 | #include <math.h> | ||
| 39 | #include <libintl.h> | ||
| 40 | 37 | ||
| 41 | #ifdef HAVE_DECL_SWAPCTL | 38 | #ifdef HAVE_DECL_SWAPCTL | 
| 42 | # ifdef HAVE_SYS_PARAM_H | 39 | # ifdef HAVE_SYS_PARAM_H | 
| @@ -142,14 +139,15 @@ main (int argc, char **argv) | |||
| 142 | percent = 100 * (((double) dskused_mb) / ((double) dsktotal_mb)); | 139 | percent = 100 * (((double) dskused_mb) / ((double) dsktotal_mb)); | 
| 143 | result = max_state (result, check_swap (dskfree_mb, dsktotal_mb)); | 140 | result = max_state (result, check_swap (dskfree_mb, dsktotal_mb)); | 
| 144 | if (verbose) | 141 | if (verbose) | 
| 145 | xasprintf (&status, "%s [%.0f (%d%%)]", status, dskfree_mb, 100 - percent); | 142 | xasprintf (&status, "%s [%lu (%d%%)]", status, dskfree_mb, 100 - percent); | 
| 146 | } | 143 | } | 
| 147 | } | 144 | } | 
| 145 | |||
| 148 | /* | 146 | /* | 
| 149 | * The following sscanf call looks for lines looking like: "SwapTotal: 123" and "SwapFree: 123" | 147 | * The following sscanf call looks for lines looking like: "SwapTotal: 123" and "SwapFree: 123" | 
| 150 | * This format exists at least on Debian Linux with a 5.* kernel | 148 | * This format exists at least on Debian Linux with a 5.* kernel | 
| 151 | */ | 149 | */ | 
| 152 | else if (sscanf (input_buffer, "%*[S]%*[w]%*[a]%*[p]%[TotalFre]%*[:] %lu %*[k]%*[B]", str, &tmp_KB)) { | 150 | else if (sscanf (input_buffer, "%*[S]%*[w]%*[a]%*[p]%[TotalFreCchd]%*[:] %lu %*[k]%*[B]", str, &tmp_KB)) { | 
| 153 | if (verbose >= 3) { | 151 | if (verbose >= 3) { | 
| 154 | printf("Got %s with %lu\n", str, tmp_KB); | 152 | printf("Got %s with %lu\n", str, tmp_KB); | 
| 155 | } | 153 | } | 
| @@ -158,7 +156,10 @@ main (int argc, char **argv) | |||
| 158 | dsktotal_mb = tmp_KB / 1024; | 156 | dsktotal_mb = tmp_KB / 1024; | 
| 159 | } | 157 | } | 
| 160 | else if (strcmp ("Free", str) == 0) { | 158 | else if (strcmp ("Free", str) == 0) { | 
| 161 | dskfree_mb = tmp_KB / 1024; | 159 | dskfree_mb = dskfree_mb + tmp_KB / 1024; | 
| 160 | } | ||
| 161 | else if (strcmp ("Cached", str) == 0) { | ||
| 162 | dskfree_mb = dskfree_mb + tmp_KB / 1024; | ||
| 162 | } | 163 | } | 
| 163 | } | 164 | } | 
| 164 | } | 165 | } | 
| @@ -177,7 +178,7 @@ main (int argc, char **argv) | |||
| 177 | # ifdef _AIX | 178 | # ifdef _AIX | 
| 178 | if (!allswaps) { | 179 | if (!allswaps) { | 
| 179 | xasprintf(&swap_command, "%s", "/usr/sbin/lsps -s"); | 180 | xasprintf(&swap_command, "%s", "/usr/sbin/lsps -s"); | 
| 180 | xasprintf(&swap_format, "%s", "%f%*s %f"); | 181 | xasprintf(&swap_format, "%s", "%lu%*s %lu"); | 
| 181 | conv_factor = 1; | 182 | conv_factor = 1; | 
| 182 | } | 183 | } | 
| 183 | # endif | 184 | # endif | 
| @@ -204,9 +205,9 @@ main (int argc, char **argv) | |||
| 204 | temp_buffer = strtok (input_buffer, " \n"); | 205 | temp_buffer = strtok (input_buffer, " \n"); | 
| 205 | while (temp_buffer) { | 206 | while (temp_buffer) { | 
| 206 | if (strstr (temp_buffer, "blocks")) | 207 | if (strstr (temp_buffer, "blocks")) | 
| 207 | sprintf (str, "%s %s", str, "%f"); | 208 | sprintf (str, "%s %s", str, "%lu"); | 
| 208 | else if (strstr (temp_buffer, "dskfree")) | 209 | else if (strstr (temp_buffer, "dskfree")) | 
| 209 | sprintf (str, "%s %s", str, "%f"); | 210 | sprintf (str, "%s %s", str, "%lu"); | 
| 210 | else | 211 | else | 
| 211 | sprintf (str, "%s %s", str, "%*s"); | 212 | sprintf (str, "%s %s", str, "%*s"); | 
| 212 | temp_buffer = strtok (NULL, " \n"); | 213 | temp_buffer = strtok (NULL, " \n"); | 
| @@ -385,7 +386,7 @@ main (int argc, char **argv) | |||
| 385 | TRUE, warn_print, | 386 | TRUE, warn_print, | 
| 386 | TRUE, crit_print, | 387 | TRUE, crit_print, | 
| 387 | TRUE, 0, | 388 | TRUE, 0, | 
| 388 | TRUE, (long) total_swap_mb)); | 389 | TRUE, (long) total_swap_mb * 1024 * 1024)); | 
| 389 | 390 | ||
| 390 | return result; | 391 | return result; | 
| 391 | } | 392 | } | 
| @@ -406,7 +407,6 @@ check_swap(float free_swap_mb, float total_swap_mb) | |||
| 406 | uint64_t usage_percentage = ((total_swap_mb - free_swap_mb) / total_swap_mb) * 100; | 407 | uint64_t usage_percentage = ((total_swap_mb - free_swap_mb) / total_swap_mb) * 100; | 
| 407 | 408 | ||
| 408 | if (crit.is_percentage && | 409 | if (crit.is_percentage && | 
| 409 | usage_percentage >= 0 && | ||
| 410 | crit.value != 0 && | 410 | crit.value != 0 && | 
| 411 | usage_percentage >= (100 - crit.value)) | 411 | usage_percentage >= (100 - crit.value)) | 
| 412 | { | 412 | { | 
| @@ -414,7 +414,6 @@ check_swap(float free_swap_mb, float total_swap_mb) | |||
| 414 | } | 414 | } | 
| 415 | 415 | ||
| 416 | if (warn.is_percentage && | 416 | if (warn.is_percentage && | 
| 417 | usage_percentage >= 0 && | ||
| 418 | warn.value != 0 && | 417 | warn.value != 0 && | 
| 419 | usage_percentage >= (100 - warn.value)) | 418 | usage_percentage >= (100 - warn.value)) | 
| 420 | { | 419 | { | 
| @@ -471,10 +470,9 @@ process_arguments (int argc, char **argv) | |||
| 471 | if (is_uint64(optarg, &warn.value)) { | 470 | if (is_uint64(optarg, &warn.value)) { | 
| 472 | if (warn.value > 100) { | 471 | if (warn.value > 100) { | 
| 473 | usage4 (_("Warning threshold percentage must be <= 100!")); | 472 | usage4 (_("Warning threshold percentage must be <= 100!")); | 
| 474 | } else { | ||
| 475 | break; | ||
| 476 | } | 473 | } | 
| 477 | } | 474 | } | 
| 475 | break; | ||
| 478 | } else { | 476 | } else { | 
| 479 | /* It's Bytes */ | 477 | /* It's Bytes */ | 
| 480 | warn.is_percentage = 0; | 478 | warn.is_percentage = 0; | 
| @@ -502,10 +500,9 @@ process_arguments (int argc, char **argv) | |||
| 502 | if (is_uint64(optarg, &crit.value)) { | 500 | if (is_uint64(optarg, &crit.value)) { | 
| 503 | if (crit.value> 100) { | 501 | if (crit.value> 100) { | 
| 504 | usage4 (_("Critical threshold percentage must be <= 100!")); | 502 | usage4 (_("Critical threshold percentage must be <= 100!")); | 
| 505 | } else { | ||
| 506 | break; | ||
| 507 | } | 503 | } | 
| 508 | } | 504 | } | 
| 505 | break; | ||
| 509 | } else { | 506 | } else { | 
| 510 | /* It's Bytes */ | 507 | /* It's Bytes */ | 
| 511 | crit.is_percentage = 0; | 508 | crit.is_percentage = 0; | 
| @@ -523,6 +520,7 @@ process_arguments (int argc, char **argv) | |||
| 523 | if ((no_swap_state = mp_translate_state(optarg)) == ERROR) { | 520 | if ((no_swap_state = mp_translate_state(optarg)) == ERROR) { | 
| 524 | usage4 (_("no-swap result must be a valid state name (OK, WARNING, CRITICAL, UNKNOWN) or integer (0-3).")); | 521 | usage4 (_("no-swap result must be a valid state name (OK, WARNING, CRITICAL, UNKNOWN) or integer (0-3).")); | 
| 525 | } | 522 | } | 
| 523 | break; | ||
| 526 | case 'v': /* verbose */ | 524 | case 'v': /* verbose */ | 
| 527 | verbose++; | 525 | verbose++; | 
| 528 | break; | 526 | break; | 
| @@ -552,9 +550,12 @@ validate_arguments (void) | |||
| 552 | if (warn.value == 0 && crit.value == 0) { | 550 | if (warn.value == 0 && crit.value == 0) { | 
| 553 | return ERROR; | 551 | return ERROR; | 
| 554 | } | 552 | } | 
| 555 | else if (warn.value < crit.value) { | 553 | else if ((warn.is_percentage == crit.is_percentage) && (warn.value < crit.value)) { | 
| 556 | usage4 | 554 | /* This is NOT triggered if warn and crit are different units, e.g warn is percentage | 
| 557 | (_("Warning should be more than critical")); | 555 | * and crit is absolute. We cannot determine the condition at this point since we | 
| 556 | * dont know the value of total swap yet | ||
| 557 | */ | ||
| 558 | usage4(_("Warning should be more than critical")); | ||
| 558 | } | 559 | } | 
| 559 | return OK; | 560 | return OK; | 
| 560 | } | 561 | } | 
| @@ -570,7 +571,7 @@ print_help (void) | |||
| 570 | 571 | ||
| 571 | printf ("%s\n", _("Check swap space on local machine.")); | 572 | printf ("%s\n", _("Check swap space on local machine.")); | 
| 572 | 573 | ||
| 573 | printf ("\n\n"); | 574 | printf ("\n\n"); | 
| 574 | 575 | ||
| 575 | print_usage (); | 576 | print_usage (); | 
| 576 | 577 | ||
| @@ -578,23 +579,23 @@ print_help (void) | |||
| 578 | printf (UT_EXTRA_OPTS); | 579 | printf (UT_EXTRA_OPTS); | 
| 579 | 580 | ||
| 580 | printf (" %s\n", "-w, --warning=INTEGER"); | 581 | printf (" %s\n", "-w, --warning=INTEGER"); | 
| 581 | printf (" %s\n", _("Exit with WARNING status if less than INTEGER bytes of swap space are free")); | 582 | printf (" %s\n", _("Exit with WARNING status if less than INTEGER bytes of swap space are free")); | 
| 582 | printf (" %s\n", "-w, --warning=PERCENT%%"); | 583 | printf (" %s\n", "-w, --warning=PERCENT%"); | 
| 583 | printf (" %s\n", _("Exit with WARNING status if less than PERCENT of swap space is free")); | 584 | printf (" %s\n", _("Exit with WARNING status if less than PERCENT of swap space is free")); | 
| 584 | printf (" %s\n", "-c, --critical=INTEGER"); | 585 | printf (" %s\n", "-c, --critical=INTEGER"); | 
| 585 | printf (" %s\n", _("Exit with CRITICAL status if less than INTEGER bytes of swap space are free")); | 586 | printf (" %s\n", _("Exit with CRITICAL status if less than INTEGER bytes of swap space are free")); | 
| 586 | printf (" %s\n", "-c, --critical=PERCENT%%"); | 587 | printf (" %s\n", "-c, --critical=PERCENT%"); | 
| 587 | printf (" %s\n", _("Exit with CRITICAL status if less than PERCENT of swap space is free")); | 588 | printf (" %s\n", _("Exit with CRITICAL status if less than PERCENT of swap space is free")); | 
| 588 | printf (" %s\n", "-a, --allswaps"); | 589 | printf (" %s\n", "-a, --allswaps"); | 
| 589 | printf (" %s\n", _("Conduct comparisons for all swap partitions, one by one")); | 590 | printf (" %s\n", _("Conduct comparisons for all swap partitions, one by one")); | 
| 590 | printf (" %s\n", "-n, --no-swap=<ok|warning|critical|unknown>"); | 591 | printf (" %s\n", "-n, --no-swap=<ok|warning|critical|unknown>"); | 
| 591 | printf (" %s %s\n", _("Resulting state when there is no swap regardless of thresholds. Default:"), state_text(no_swap_state)); | 592 | printf (" %s %s\n", _("Resulting state when there is no swap regardless of thresholds. Default:"), state_text(no_swap_state)); | 
| 592 | printf (UT_VERBOSE); | 593 | printf (UT_VERBOSE); | 
| 593 | 594 | ||
| 594 | printf ("\n"); | 595 | printf ("\n"); | 
| 595 | printf ("%s\n", _("Notes:")); | 596 | printf ("%s\n", _("Notes:")); | 
| 596 | printf (" %s\n", _("Both INTEGER and PERCENT thresholds can be specified, they are all checked.")); | 597 | printf (" %s\n", _("Both INTEGER and PERCENT thresholds can be specified, they are all checked.")); | 
| 597 | printf (" %s\n", _("On AIX, if -a is specified, uses lsps -a, otherwise uses lsps -s.")); | 598 | printf (" %s\n", _("On AIX, if -a is specified, uses lsps -a, otherwise uses lsps -s.")); | 
| 598 | 599 | ||
| 599 | printf (UT_SUPPORT); | 600 | printf (UT_SUPPORT); | 
| 600 | } | 601 | } | 
| @@ -604,6 +605,6 @@ void | |||
| 604 | print_usage (void) | 605 | print_usage (void) | 
| 605 | { | 606 | { | 
| 606 | printf ("%s\n", _("Usage:")); | 607 | printf ("%s\n", _("Usage:")); | 
| 607 | printf (" %s [-av] -w <percent_free>%% -c <percent_free>%%\n",progname); | 608 | printf (" %s [-av] -w <percent_free>%% -c <percent_free>%%\n",progname); | 
| 608 | printf (" -w <bytes_free> -c <bytes_free> [-n <state>]\n"); | 609 | printf (" -w <bytes_free> -c <bytes_free> [-n <state>]\n"); | 
| 609 | } | 610 | } | 
