X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=plugins%2Fcheck_swap.c;h=b92694d90ef923a87b59047a598d2736561d099f;hb=575e82a500d1b097b70883a8e50f4b92451d8270;hp=8e0a58985517d11a69b8b66bdfdd6bd268d54d21;hpb=5f5bb8c472cf889a73e020b10b770e74dfb846e6;p=nagiosplug.git diff --git a/plugins/check_swap.c b/plugins/check_swap.c index 8e0a589..b92694d 100644 --- a/plugins/check_swap.c +++ b/plugins/check_swap.c @@ -1,85 +1,175 @@ /****************************************************************************** -* -* 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 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 %% -c %%\n\ + %s [-a] -w -c \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 (); +} + + 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"); @@ -87,87 +177,103 @@ 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_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; } + +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; @@ -180,7 +286,7 @@ process_arguments (int argc, char **argv) } 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, "%") && @@ -188,8 +294,9 @@ process_arguments (int argc, char **argv) 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); @@ -197,7 +304,7 @@ process_arguments (int argc, char **argv) } 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, "%") && @@ -205,16 +312,23 @@ process_arguments (int argc, char **argv) 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")); } } @@ -231,12 +345,12 @@ process_arguments (int argc, char **argv) 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 (); @@ -249,59 +363,17 @@ process_arguments (int argc, char **argv) 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 %% -c %%\n" - " check_swap -w -c \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 (); -}