1073 lines
39 KiB
C
1073 lines
39 KiB
C
/*****************************************************************************
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*
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* Monitoring check_disk plugin
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*
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* License: GPL
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* Copyright (c) 1999-2008 Monitoring Plugins Development Team
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*
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* Description:
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*
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* This file contains the check_disk plugin
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*
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*****************************************************************************/
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const char *progname = "check_disk";
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const char *program_name = "check_disk"; /* Required for coreutils libs */
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const char *copyright = "1999-2008";
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const char *email = "devel@monitoring-plugins.org";
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#include "common.h"
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#ifdef HAVE_SYS_STAT_H
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# include <sys/stat.h>
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#endif
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#if HAVE_INTTYPES_H
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# include <inttypes.h>
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#endif
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#include <assert.h>
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#include "popen.h"
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#include "utils.h"
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#include "utils_disk.h"
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#include <stdarg.h>
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#include "fsusage.h"
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#include "mountlist.h"
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#include "intprops.h" /* necessary for TYPE_MAXIMUM */
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#if HAVE_LIMITS_H
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# include <limits.h>
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#endif
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#include "regex.h"
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#ifdef __CYGWIN__
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# include <windows.h>
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# undef ERROR
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# define ERROR -1
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#endif
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/* If nonzero, show even filesystems with zero size or
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uninteresting types. */
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static int show_all_fs = 1;
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/* If nonzero, show only local filesystems. */
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static int show_local_fs = 0;
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/* If nonzero, show only local filesystems but call stat() on remote ones. */
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static int stat_remote_fs = 0;
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/* If positive, the units to use when printing sizes;
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if negative, the human-readable base. */
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/* static int output_block_size; */
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/* If nonzero, invoke the `sync' system call before getting any usage data.
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Using this option can make df very slow, especially with many or very
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busy disks. Note that this may make a difference on some systems --
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SunOs4.1.3, for one. It is *not* necessary on Linux. */
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/* static int require_sync = 0; */
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/* Linked list of filesystem types to display.
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If `fs_select_list' is NULL, list all types.
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This table is generated dynamically from command-line options,
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rather than hardcoding into the program what it thinks are the
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valid filesystem types; let the user specify any filesystem type
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they want to, and if there are any filesystems of that type, they
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will be shown.
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Some filesystem types:
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4.2 4.3 ufs nfs swap ignore io vm efs dbg */
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/* static struct parameter_list *fs_select_list; */
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/* Linked list of filesystem types to omit.
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If the list is empty, don't exclude any types. */
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static struct name_list *fs_exclude_list;
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/* Linked list of filesystem types to check.
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If the list is empty, include all types. */
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static struct name_list *fs_include_list;
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static struct name_list *dp_exclude_list;
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static struct parameter_list *path_select_list = NULL;
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/* Linked list of mounted filesystems. */
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static struct mount_entry *mount_list;
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/* For long options that have no equivalent short option, use a
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non-character as a pseudo short option, starting with CHAR_MAX + 1. */
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enum
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{
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SYNC_OPTION = CHAR_MAX + 1,
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NO_SYNC_OPTION,
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BLOCK_SIZE_OPTION
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};
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#ifdef _AIX
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#pragma alloca
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#endif
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int process_arguments (int, char **);
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void print_path (const char *mypath);
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void set_all_thresholds (struct parameter_list *path);
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int validate_arguments (uintmax_t, uintmax_t, double, double, double, double, char *);
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void print_help (void);
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void print_usage (void);
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double calculate_percent(uintmax_t, uintmax_t);
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void stat_path (struct parameter_list *p);
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void get_stats (struct parameter_list *p, struct fs_usage *fsp);
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void get_path_stats (struct parameter_list *p, struct fs_usage *fsp);
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double w_dfp = -1.0;
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double c_dfp = -1.0;
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char *path;
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char *exclude_device;
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char *units;
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uintmax_t mult = 1024 * 1024;
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int verbose = 0;
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int erronly = FALSE;
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int display_mntp = FALSE;
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int exact_match = FALSE;
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int freespace_ignore_reserved = FALSE;
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int display_inodes_perfdata = FALSE;
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char *warn_freespace_units = NULL;
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char *crit_freespace_units = NULL;
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char *warn_freespace_percent = NULL;
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char *crit_freespace_percent = NULL;
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char *warn_usedspace_units = NULL;
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char *crit_usedspace_units = NULL;
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char *warn_usedspace_percent = NULL;
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char *crit_usedspace_percent = NULL;
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char *warn_usedinodes_percent = NULL;
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char *crit_usedinodes_percent = NULL;
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char *warn_freeinodes_percent = NULL;
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char *crit_freeinodes_percent = NULL;
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int path_selected = FALSE;
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char *group = NULL;
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struct stat *stat_buf;
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struct name_list *seen = NULL;
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int
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main (int argc, char **argv)
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{
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int result = STATE_UNKNOWN;
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int disk_result = STATE_UNKNOWN;
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char *output;
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char *details;
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char *perf;
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char *perf_ilabel;
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char *preamble;
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char *flag_header;
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int temp_result;
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struct mount_entry *me;
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struct fs_usage fsp;
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struct parameter_list *temp_list, *path;
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#ifdef __CYGWIN__
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char mountdir[32];
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#endif
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preamble = strdup (" - free space:");
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output = strdup ("");
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details = strdup ("");
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perf = strdup ("");
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perf_ilabel = strdup ("");
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stat_buf = malloc(sizeof *stat_buf);
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setlocale (LC_ALL, "");
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bindtextdomain (PACKAGE, LOCALEDIR);
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textdomain (PACKAGE);
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mount_list = read_file_system_list (0);
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/* Parse extra opts if any */
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argv = np_extra_opts (&argc, argv, progname);
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if (process_arguments (argc, argv) == ERROR)
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usage4 (_("Could not parse arguments"));
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/* If a list of paths has not been selected, find entire
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mount list and create list of paths
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*/
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if (path_selected == FALSE) {
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for (me = mount_list; me; me = me->me_next) {
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if (! (path = np_find_parameter(path_select_list, me->me_mountdir))) {
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path = np_add_parameter(&path_select_list, me->me_mountdir);
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}
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path->best_match = me;
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path->group = group;
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set_all_thresholds(path);
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}
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}
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np_set_best_match(path_select_list, mount_list, exact_match);
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/* Error if no match found for specified paths */
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temp_list = path_select_list;
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while (temp_list) {
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if (! temp_list->best_match) {
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die (STATE_CRITICAL, _("DISK %s: %s not found\n"), _("CRITICAL"), temp_list->name);
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}
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temp_list = temp_list->name_next;
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}
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/* Process for every path in list */
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for (path = path_select_list; path; path=path->name_next) {
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if (verbose >= 3 && path->freespace_percent->warning != NULL && path->freespace_percent->critical != NULL)
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printf("Thresholds(pct) for %s warn: %f crit %f\n",
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path->name,
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path->freespace_percent->warning->end,
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path->freespace_percent->critical->end);
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if (verbose >= 3 && path->group != NULL)
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printf("Group of %s: %s\n",path->name,path->group);
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/* reset disk result */
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disk_result = STATE_UNKNOWN;
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me = path->best_match;
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#ifdef __CYGWIN__
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if (strncmp(path->name, "/cygdrive/", 10) != 0 || strlen(path->name) > 11)
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continue;
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snprintf(mountdir, sizeof(mountdir), "%s:\\", me->me_mountdir + 10);
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if (GetDriveType(mountdir) != DRIVE_FIXED)
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me->me_remote = 1;
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#endif
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/* Filters */
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/* Remove filesystems already seen */
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if (np_seen_name(seen, me->me_mountdir)) {
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continue;
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}
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np_add_name(&seen, me->me_mountdir);
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if (path->group == NULL) {
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/* Skip remote filesystems if we're not interested in them */
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if (me->me_remote && show_local_fs) {
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if (stat_remote_fs)
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stat_path(path);
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continue;
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/* Skip pseudo fs's if we haven't asked for all fs's */
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} else if (me->me_dummy && !show_all_fs) {
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continue;
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/* Skip excluded fstypes */
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} else if (fs_exclude_list && np_find_name (fs_exclude_list, me->me_type)) {
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continue;
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/* Skip excluded fs's */
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} else if (dp_exclude_list &&
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(np_find_name (dp_exclude_list, me->me_devname) ||
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np_find_name (dp_exclude_list, me->me_mountdir))) {
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continue;
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/* Skip not included fstypes */
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} else if (fs_include_list && !np_find_name (fs_include_list, me->me_type)) {
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continue;
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}
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}
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stat_path(path);
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get_fs_usage (me->me_mountdir, me->me_devname, &fsp);
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if (fsp.fsu_blocks && strcmp ("none", me->me_mountdir)) {
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get_stats (path, &fsp);
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if (verbose >= 3) {
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printf ("For %s, used_pct=%g free_pct=%g used_units=%lu free_units=%lu total_units=%lu used_inodes_pct=%g free_inodes_pct=%g fsp.fsu_blocksize=%lu mult=%lu\n",
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me->me_mountdir,
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path->dused_pct,
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path->dfree_pct,
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path->dused_units,
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path->dfree_units,
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path->dtotal_units,
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path->dused_inodes_percent,
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path->dfree_inodes_percent,
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fsp.fsu_blocksize,
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mult);
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}
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/* Threshold comparisons */
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temp_result = get_status(path->dfree_units, path->freespace_units);
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if (verbose >=3) printf("Freespace_units result=%d\n", temp_result);
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disk_result = max_state( disk_result, temp_result );
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temp_result = get_status(path->dfree_pct, path->freespace_percent);
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if (verbose >=3) printf("Freespace%% result=%d\n", temp_result);
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disk_result = max_state( disk_result, temp_result );
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temp_result = get_status(path->dused_units, path->usedspace_units);
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if (verbose >=3) printf("Usedspace_units result=%d\n", temp_result);
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disk_result = max_state( disk_result, temp_result );
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temp_result = get_status(path->dused_pct, path->usedspace_percent);
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if (verbose >=3) printf("Usedspace_percent result=%d\n", temp_result);
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disk_result = max_state( disk_result, temp_result );
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temp_result = get_status(path->dused_inodes_percent, path->usedinodes_percent);
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if (verbose >=3) printf("Usedinodes_percent result=%d\n", temp_result);
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disk_result = max_state( disk_result, temp_result );
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temp_result = get_status(path->dfree_inodes_percent, path->freeinodes_percent);
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if (verbose >=3) printf("Freeinodes_percent result=%d\n", temp_result);
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disk_result = max_state( disk_result, temp_result );
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result = max_state(result, disk_result);
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/* What a mess of units. The output shows free space, the perf data shows used space. Yikes!
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Hack here. Trying to get warn/crit levels from freespace_(units|percent) for perf
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data. Assumption that start=0. Roll on new syntax...
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*/
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/* *_high_tide must be reinitialized at each run */
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uint64_t warning_high_tide = UINT64_MAX;
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if (path->freespace_units->warning != NULL) {
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warning_high_tide = (path->dtotal_units - path->freespace_units->warning->end) * mult;
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}
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if (path->freespace_percent->warning != NULL) {
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warning_high_tide = min( warning_high_tide, (uint64_t)((1.0 - path->freespace_percent->warning->end/100) * (path->dtotal_units * mult)) );
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}
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uint64_t critical_high_tide = UINT64_MAX;
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if (path->freespace_units->critical != NULL) {
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critical_high_tide = (path->dtotal_units - path->freespace_units->critical->end) * mult;
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}
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if (path->freespace_percent->critical != NULL) {
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critical_high_tide = min( critical_high_tide, (uint64_t)((1.0 - path->freespace_percent->critical->end/100) * (path->dtotal_units * mult)) );
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}
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/* Nb: *_high_tide are unset when == UINT64_MAX */
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xasprintf (&perf, "%s %s", perf,
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perfdata_uint64 (
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(!strcmp(me->me_mountdir, "none") || display_mntp) ? me->me_devname : me->me_mountdir,
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path->dused_units * mult, "B",
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(warning_high_tide == UINT64_MAX ? FALSE : TRUE), warning_high_tide,
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(critical_high_tide == UINT64_MAX ? FALSE : TRUE), critical_high_tide,
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TRUE, 0,
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TRUE, path->dtotal_units * mult));
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if (display_inodes_perfdata) {
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/* *_high_tide must be reinitialized at each run */
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warning_high_tide = UINT64_MAX;
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critical_high_tide = UINT64_MAX;
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if (path->freeinodes_percent->warning != NULL) {
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warning_high_tide = (uint64_t) fabs( min( (double) warning_high_tide, (double) (1.0 - path->freeinodes_percent->warning->end/100)*path->inodes_total ));
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}
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if (path->freeinodes_percent->critical != NULL) {
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critical_high_tide = (uint64_t) fabs( min( (double) critical_high_tide, (double) (1.0 - path->freeinodes_percent->critical->end/100)*path->inodes_total ));
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}
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xasprintf (&perf_ilabel, "%s (inodes)", (!strcmp(me->me_mountdir, "none") || display_mntp) ? me->me_devname : me->me_mountdir);
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/* Nb: *_high_tide are unset when == UINT64_MAX */
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xasprintf (&perf, "%s %s", perf,
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perfdata_uint64 (perf_ilabel,
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path->inodes_used, "",
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(warning_high_tide != UINT64_MAX ? TRUE : FALSE), warning_high_tide,
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(critical_high_tide != UINT64_MAX ? TRUE : FALSE), critical_high_tide,
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TRUE, 0,
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TRUE, path->inodes_total));
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}
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if (disk_result==STATE_OK && erronly && !verbose)
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continue;
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if(disk_result && verbose >= 1) {
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xasprintf(&flag_header, " %s [", state_text (disk_result));
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} else {
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xasprintf(&flag_header, "");
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}
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xasprintf (&output, "%s%s %s %llu%s (%.0f%%",
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output, flag_header,
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(!strcmp(me->me_mountdir, "none") || display_mntp) ? me->me_devname : me->me_mountdir,
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path->dfree_units,
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units,
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path->dfree_pct);
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if (path->dused_inodes_percent < 0) {
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xasprintf(&output, "%s inode=-)%s;", output, (disk_result ? "]" : ""));
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} else {
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xasprintf(&output, "%s inode=%.0f%%)%s;", output, path->dfree_inodes_percent, ((disk_result && verbose >= 1) ? "]" : ""));
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}
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free(flag_header);
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}
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}
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if (verbose >= 2)
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xasprintf (&output, "%s%s", output, details);
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printf ("DISK %s%s%s|%s\n", state_text (result), (erronly && result==STATE_OK) ? "" : preamble, output, perf);
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return result;
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}
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double calculate_percent(uintmax_t value, uintmax_t total) {
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double pct = -1;
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/* I don't understand the below, but it is taken from coreutils' df */
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/* Seems to be calculating pct, in the best possible way */
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if (value <= TYPE_MAXIMUM(uintmax_t) / 100
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&& total != 0) {
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uintmax_t u100 = value * 100;
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pct = u100 / total + (u100 % total != 0);
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} else {
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/* Possible rounding errors - see coreutils' df for more explanation */
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double u = value;
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double t = total;
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if (t) {
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long int lipct = pct = u * 100 / t;
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double ipct = lipct;
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/* Like 'pct = ceil (dpct);', but without ceil - from coreutils again */
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if (ipct - 1 < pct && pct <= ipct + 1)
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pct = ipct + (ipct < pct);
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}
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}
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return pct;
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}
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|
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/* process command-line arguments */
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int
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process_arguments (int argc, char **argv)
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{
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int c, err;
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struct parameter_list *se;
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struct parameter_list *temp_list = NULL, *previous = NULL;
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struct mount_entry *me;
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regex_t re;
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int cflags = REG_NOSUB | REG_EXTENDED;
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int default_cflags = cflags;
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char errbuf[MAX_INPUT_BUFFER];
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int fnd = 0;
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int option = 0;
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static struct option longopts[] = {
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{"timeout", required_argument, 0, 't'},
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{"warning", required_argument, 0, 'w'},
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{"critical", required_argument, 0, 'c'},
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{"iwarning", required_argument, 0, 'W'},
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/* Dang, -C is taken. We might want to reshuffle this. */
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{"icritical", required_argument, 0, 'K'},
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{"kilobytes", no_argument, 0, 'k'},
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{"megabytes", no_argument, 0, 'm'},
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{"units", required_argument, 0, 'u'},
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{"path", required_argument, 0, 'p'},
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{"partition", required_argument, 0, 'p'},
|
|
{"exclude_device", required_argument, 0, 'x'},
|
|
{"exclude-type", required_argument, 0, 'X'},
|
|
{"include-type", required_argument, 0, 'N'},
|
|
{"group", required_argument, 0, 'g'},
|
|
{"eregi-path", required_argument, 0, 'R'},
|
|
{"eregi-partition", required_argument, 0, 'R'},
|
|
{"ereg-path", required_argument, 0, 'r'},
|
|
{"ereg-partition", required_argument, 0, 'r'},
|
|
{"freespace-ignore-reserved", no_argument, 0, 'f'},
|
|
{"ignore-ereg-path", required_argument, 0, 'i'},
|
|
{"ignore-ereg-partition", required_argument, 0, 'i'},
|
|
{"ignore-eregi-path", required_argument, 0, 'I'},
|
|
{"ignore-eregi-partition", required_argument, 0, 'I'},
|
|
{"local", no_argument, 0, 'l'},
|
|
{"stat-remote-fs", no_argument, 0, 'L'},
|
|
{"iperfdata", no_argument, 0, 'P'},
|
|
{"mountpoint", no_argument, 0, 'M'},
|
|
{"errors-only", no_argument, 0, 'e'},
|
|
{"exact-match", no_argument, 0, 'E'},
|
|
{"all", no_argument, 0, 'A'},
|
|
{"verbose", no_argument, 0, 'v'},
|
|
{"quiet", no_argument, 0, 'q'},
|
|
{"clear", no_argument, 0, 'C'},
|
|
{"version", no_argument, 0, 'V'},
|
|
{"help", no_argument, 0, 'h'},
|
|
{0, 0, 0, 0}
|
|
};
|
|
|
|
if (argc < 2)
|
|
return ERROR;
|
|
|
|
np_add_name(&fs_exclude_list, "iso9660");
|
|
|
|
for (c = 1; c < argc; c++)
|
|
if (strcmp ("-to", argv[c]) == 0)
|
|
strcpy (argv[c], "-t");
|
|
|
|
while (1) {
|
|
c = getopt_long (argc, argv, "+?VqhvefCt:c:w:K:W:u:p:x:X:N:mklLPg:R:r:i:I:MEA", longopts, &option);
|
|
|
|
if (c == -1 || c == EOF)
|
|
break;
|
|
|
|
switch (c) {
|
|
case 't': /* timeout period */
|
|
if (is_integer (optarg)) {
|
|
timeout_interval = atoi (optarg);
|
|
break;
|
|
}
|
|
else {
|
|
usage2 (_("Timeout interval must be a positive integer"), optarg);
|
|
}
|
|
|
|
/* See comments for 'c' */
|
|
case 'w': /* warning threshold */
|
|
if (strstr(optarg, "%")) {
|
|
if (*optarg == '@') {
|
|
warn_freespace_percent = optarg;
|
|
} else {
|
|
xasprintf(&warn_freespace_percent, "@%s", optarg);
|
|
}
|
|
} else {
|
|
if (*optarg == '@') {
|
|
warn_freespace_units = optarg;
|
|
} else {
|
|
xasprintf(&warn_freespace_units, "@%s", optarg);
|
|
}
|
|
}
|
|
break;
|
|
|
|
/* Awful mistake where the range values do not make sense. Normally,
|
|
you alert if the value is within the range, but since we are using
|
|
freespace, we have to alert if outside the range. Thus we artifically
|
|
force @ at the beginning of the range, so that it is backwards compatible
|
|
*/
|
|
case 'c': /* critical threshold */
|
|
if (strstr(optarg, "%")) {
|
|
if (*optarg == '@') {
|
|
crit_freespace_percent = optarg;
|
|
} else {
|
|
xasprintf(&crit_freespace_percent, "@%s", optarg);
|
|
}
|
|
} else {
|
|
if (*optarg == '@') {
|
|
crit_freespace_units = optarg;
|
|
} else {
|
|
xasprintf(&crit_freespace_units, "@%s", optarg);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'W': /* warning inode threshold */
|
|
if (*optarg == '@') {
|
|
warn_freeinodes_percent = optarg;
|
|
} else {
|
|
xasprintf(&warn_freeinodes_percent, "@%s", optarg);
|
|
}
|
|
break;
|
|
case 'K': /* critical inode threshold */
|
|
if (*optarg == '@') {
|
|
crit_freeinodes_percent = optarg;
|
|
} else {
|
|
xasprintf(&crit_freeinodes_percent, "@%s", optarg);
|
|
}
|
|
break;
|
|
case 'u':
|
|
if (units)
|
|
free(units);
|
|
if (! strcasecmp (optarg, "bytes")) {
|
|
mult = (uintmax_t)1;
|
|
units = strdup ("B");
|
|
} else if ( (! strcmp (optarg, "kB")) || (!strcmp(optarg, "KiB")) ) {
|
|
mult = (uintmax_t)1024;
|
|
units = strdup ("kiB");
|
|
} else if ( (! strcmp (optarg, "MB")) || (!strcmp(optarg, "MiB")) ) {
|
|
mult = (uintmax_t)1024 * 1024;
|
|
units = strdup ("MiB");
|
|
} else if ( (! strcmp (optarg, "GB")) || (!strcmp(optarg, "GiB")) ) {
|
|
mult = (uintmax_t)1024 * 1024 * 1024;
|
|
units = strdup ("GiB");
|
|
} else if ( (! strcmp (optarg, "TB")) || (!strcmp(optarg, "TiB")) ) {
|
|
mult = (uintmax_t)1024 * 1024 * 1024 * 1024;
|
|
units = strdup ("TiB");
|
|
} else if ( (! strcmp (optarg, "PB")) || (!strcmp(optarg, "PiB")) ) {
|
|
mult = (uintmax_t)1024 * 1024 * 1024 * 1024 * 1024;
|
|
units = strdup ("PiB");
|
|
} else {
|
|
die (STATE_UNKNOWN, _("unit type %s not known\n"), optarg);
|
|
}
|
|
if (units == NULL)
|
|
die (STATE_UNKNOWN, _("failed allocating storage for '%s'\n"), "units");
|
|
break;
|
|
case 'k': /* display mountpoint */
|
|
mult = 1024;
|
|
if (units)
|
|
free(units);
|
|
units = strdup ("kiB");
|
|
break;
|
|
case 'm': /* display mountpoint */
|
|
mult = 1024 * 1024;
|
|
if (units)
|
|
free(units);
|
|
units = strdup ("MiB");
|
|
break;
|
|
case 'L':
|
|
stat_remote_fs = 1;
|
|
/* fallthrough */
|
|
case 'l':
|
|
show_local_fs = 1;
|
|
break;
|
|
case 'P':
|
|
display_inodes_perfdata = 1;
|
|
break;
|
|
case 'p': /* select path */
|
|
if (! (warn_freespace_units || crit_freespace_units || warn_freespace_percent ||
|
|
crit_freespace_percent || warn_usedspace_units || crit_usedspace_units ||
|
|
warn_usedspace_percent || crit_usedspace_percent || warn_usedinodes_percent ||
|
|
crit_usedinodes_percent || warn_freeinodes_percent || crit_freeinodes_percent )) {
|
|
die (STATE_UNKNOWN, "DISK %s: %s", _("UNKNOWN"), _("Must set a threshold value before using -p\n"));
|
|
}
|
|
|
|
/* add parameter if not found. overwrite thresholds if path has already been added */
|
|
if (! (se = np_find_parameter(path_select_list, optarg))) {
|
|
se = np_add_parameter(&path_select_list, optarg);
|
|
}
|
|
se->group = group;
|
|
set_all_thresholds(se);
|
|
|
|
/* With autofs, it is required to stat() the path before re-populating the mount_list */
|
|
stat_path(se);
|
|
/* NB: We can't free the old mount_list "just like that": both list pointers and struct
|
|
* pointers are copied around. One of the reason it wasn't done yet is that other parts
|
|
* of check_disk need the same kind of cleanup so it'd better be done as a whole */
|
|
mount_list = read_file_system_list (0);
|
|
np_set_best_match(se, mount_list, exact_match);
|
|
|
|
path_selected = TRUE;
|
|
break;
|
|
case 'x': /* exclude path or partition */
|
|
np_add_name(&dp_exclude_list, optarg);
|
|
break;
|
|
case 'X': /* exclude file system type */
|
|
np_add_name(&fs_exclude_list, optarg);
|
|
break;
|
|
case 'N': /* include file system type */
|
|
np_add_name(&fs_include_list, optarg);
|
|
break;
|
|
case 'v': /* verbose */
|
|
verbose++;
|
|
break;
|
|
case 'q': /* TODO: this function should eventually go away (removed 2007-09-20) */
|
|
/* verbose--; **replaced by line below**. -q was only a broken way of implementing -e */
|
|
erronly = TRUE;
|
|
break;
|
|
case 'e':
|
|
erronly = TRUE;
|
|
break;
|
|
case 'E':
|
|
if (path_selected)
|
|
die (STATE_UNKNOWN, "DISK %s: %s", _("UNKNOWN"), _("Must set -E before selecting paths\n"));
|
|
exact_match = TRUE;
|
|
break;
|
|
case 'f':
|
|
freespace_ignore_reserved = TRUE;
|
|
break;
|
|
case 'g':
|
|
if (path_selected)
|
|
die (STATE_UNKNOWN, "DISK %s: %s", _("UNKNOWN"), _("Must set group value before selecting paths\n"));
|
|
group = optarg;
|
|
break;
|
|
case 'I':
|
|
cflags |= REG_ICASE;
|
|
// Intentional fallthrough
|
|
case 'i':
|
|
if (!path_selected)
|
|
die (STATE_UNKNOWN, "DISK %s: %s\n", _("UNKNOWN"), _("Paths need to be selected before using -i/-I. Use -A to select all paths explicitly"));
|
|
err = regcomp(&re, optarg, cflags);
|
|
if (err != 0) {
|
|
regerror (err, &re, errbuf, MAX_INPUT_BUFFER);
|
|
die (STATE_UNKNOWN, "DISK %s: %s - %s\n",_("UNKNOWN"), _("Could not compile regular expression"), errbuf);
|
|
}
|
|
|
|
temp_list = path_select_list;
|
|
|
|
previous = NULL;
|
|
while (temp_list) {
|
|
if (temp_list->best_match) {
|
|
if (np_regex_match_mount_entry(temp_list->best_match, &re)) {
|
|
|
|
if (verbose >=3)
|
|
printf("ignoring %s matching regex\n", temp_list->name);
|
|
|
|
temp_list = np_del_parameter(temp_list, previous);
|
|
/* pointer to first element needs to be updated if first item gets deleted */
|
|
if (previous == NULL)
|
|
path_select_list = temp_list;
|
|
} else {
|
|
previous = temp_list;
|
|
temp_list = temp_list->name_next;
|
|
}
|
|
} else {
|
|
previous = temp_list;
|
|
temp_list = temp_list->name_next;
|
|
}
|
|
}
|
|
|
|
|
|
cflags = default_cflags;
|
|
break;
|
|
|
|
case 'A':
|
|
optarg = strdup(".*");
|
|
// Intentional fallthrough
|
|
case 'R':
|
|
cflags |= REG_ICASE;
|
|
// Intentional fallthrough
|
|
case 'r':
|
|
if (! (warn_freespace_units || crit_freespace_units || warn_freespace_percent ||
|
|
crit_freespace_percent || warn_usedspace_units || crit_usedspace_units ||
|
|
warn_usedspace_percent || crit_usedspace_percent || warn_usedinodes_percent ||
|
|
crit_usedinodes_percent || warn_freeinodes_percent || crit_freeinodes_percent )) {
|
|
die (STATE_UNKNOWN, "DISK %s: %s", _("UNKNOWN"), _("Must set a threshold value before using -r/-R\n"));
|
|
}
|
|
|
|
err = regcomp(&re, optarg, cflags);
|
|
if (err != 0) {
|
|
regerror (err, &re, errbuf, MAX_INPUT_BUFFER);
|
|
die (STATE_UNKNOWN, "DISK %s: %s - %s\n",_("UNKNOWN"), _("Could not compile regular expression"), errbuf);
|
|
}
|
|
|
|
for (me = mount_list; me; me = me->me_next) {
|
|
if (np_regex_match_mount_entry(me, &re)) {
|
|
fnd = TRUE;
|
|
if (verbose >= 3)
|
|
printf("%s %s matching expression %s\n", me->me_devname, me->me_mountdir, optarg);
|
|
|
|
/* add parameter if not found. overwrite thresholds if path has already been added */
|
|
if (! (se = np_find_parameter(path_select_list, me->me_mountdir))) {
|
|
se = np_add_parameter(&path_select_list, me->me_mountdir);
|
|
}
|
|
se->group = group;
|
|
set_all_thresholds(se);
|
|
}
|
|
}
|
|
|
|
if (!fnd)
|
|
die (STATE_UNKNOWN, "DISK %s: %s - %s\n",_("UNKNOWN"),
|
|
_("Regular expression did not match any path or disk"), optarg);
|
|
|
|
fnd = FALSE;
|
|
path_selected = TRUE;
|
|
np_set_best_match(path_select_list, mount_list, exact_match);
|
|
cflags = default_cflags;
|
|
|
|
break;
|
|
case 'M': /* display mountpoint */
|
|
display_mntp = TRUE;
|
|
break;
|
|
case 'C':
|
|
/* add all mount entries to path_select list if no partitions have been explicitly defined using -p */
|
|
if (path_selected == FALSE) {
|
|
struct parameter_list *path;
|
|
for (me = mount_list; me; me = me->me_next) {
|
|
if (! (path = np_find_parameter(path_select_list, me->me_mountdir)))
|
|
path = np_add_parameter(&path_select_list, me->me_mountdir);
|
|
path->best_match = me;
|
|
path->group = group;
|
|
set_all_thresholds(path);
|
|
}
|
|
}
|
|
warn_freespace_units = NULL;
|
|
crit_freespace_units = NULL;
|
|
warn_usedspace_units = NULL;
|
|
crit_usedspace_units = NULL;
|
|
warn_freespace_percent = NULL;
|
|
crit_freespace_percent = NULL;
|
|
warn_usedspace_percent = NULL;
|
|
crit_usedspace_percent = NULL;
|
|
warn_usedinodes_percent = NULL;
|
|
crit_usedinodes_percent = NULL;
|
|
warn_freeinodes_percent = NULL;
|
|
crit_freeinodes_percent = NULL;
|
|
|
|
path_selected = FALSE;
|
|
group = NULL;
|
|
break;
|
|
case 'V': /* version */
|
|
print_revision (progname, NP_VERSION);
|
|
exit (STATE_UNKNOWN);
|
|
case 'h': /* help */
|
|
print_help ();
|
|
exit (STATE_UNKNOWN);
|
|
case '?': /* help */
|
|
usage (_("Unknown argument"));
|
|
}
|
|
}
|
|
|
|
/* Support for "check_disk warn crit [fs]" with thresholds at used% level */
|
|
c = optind;
|
|
if (warn_usedspace_percent == NULL && argc > c && is_intnonneg (argv[c]))
|
|
warn_usedspace_percent = argv[c++];
|
|
|
|
if (crit_usedspace_percent == NULL && argc > c && is_intnonneg (argv[c]))
|
|
crit_usedspace_percent = argv[c++];
|
|
|
|
if (argc > c && path == NULL) {
|
|
se = np_add_parameter(&path_select_list, strdup(argv[c++]));
|
|
path_selected = TRUE;
|
|
set_all_thresholds(se);
|
|
}
|
|
|
|
if (units == NULL) {
|
|
units = strdup ("MiB");
|
|
mult = (uintmax_t)1024 * 1024;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
|
|
void
|
|
print_path (const char *mypath)
|
|
{
|
|
if (mypath == NULL)
|
|
printf ("\n");
|
|
else
|
|
printf (_(" for %s\n"), mypath);
|
|
}
|
|
|
|
|
|
void
|
|
set_all_thresholds (struct parameter_list *path)
|
|
{
|
|
if (path->freespace_units != NULL) free(path->freespace_units);
|
|
set_thresholds(&path->freespace_units, warn_freespace_units, crit_freespace_units);
|
|
if (path->freespace_percent != NULL) free (path->freespace_percent);
|
|
set_thresholds(&path->freespace_percent, warn_freespace_percent, crit_freespace_percent);
|
|
if (path->usedspace_units != NULL) free (path->usedspace_units);
|
|
set_thresholds(&path->usedspace_units, warn_usedspace_units, crit_usedspace_units);
|
|
if (path->usedspace_percent != NULL) free (path->usedspace_percent);
|
|
set_thresholds(&path->usedspace_percent, warn_usedspace_percent, crit_usedspace_percent);
|
|
if (path->usedinodes_percent != NULL) free (path->usedinodes_percent);
|
|
set_thresholds(&path->usedinodes_percent, warn_usedinodes_percent, crit_usedinodes_percent);
|
|
if (path->freeinodes_percent != NULL) free (path->freeinodes_percent);
|
|
set_thresholds(&path->freeinodes_percent, warn_freeinodes_percent, crit_freeinodes_percent);
|
|
}
|
|
|
|
void
|
|
print_help (void)
|
|
{
|
|
print_revision (progname, NP_VERSION);
|
|
|
|
printf ("Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>\n");
|
|
printf (COPYRIGHT, copyright, email);
|
|
|
|
printf ("%s\n", _("This plugin checks the amount of used disk space on a mounted file system"));
|
|
printf ("%s\n", _("and generates an alert if free space is less than one of the threshold values"));
|
|
|
|
printf ("\n\n");
|
|
|
|
print_usage ();
|
|
|
|
printf (UT_HELP_VRSN);
|
|
printf (UT_EXTRA_OPTS);
|
|
|
|
printf (" %s\n", "-w, --warning=INTEGER");
|
|
printf (" %s\n", _("Exit with WARNING status if less than INTEGER units of disk are free"));
|
|
printf (" %s\n", "-w, --warning=PERCENT%");
|
|
printf (" %s\n", _("Exit with WARNING status if less than PERCENT of disk space is free"));
|
|
printf (" %s\n", "-c, --critical=INTEGER");
|
|
printf (" %s\n", _("Exit with CRITICAL status if less than INTEGER units of disk are free"));
|
|
printf (" %s\n", "-c, --critical=PERCENT%");
|
|
printf (" %s\n", _("Exit with CRITICAL status if less than PERCENT of disk space is free"));
|
|
printf (" %s\n", "-W, --iwarning=PERCENT%");
|
|
printf (" %s\n", _("Exit with WARNING status if less than PERCENT of inode space is free"));
|
|
printf (" %s\n", "-K, --icritical=PERCENT%");
|
|
printf (" %s\n", _("Exit with CRITICAL status if less than PERCENT of inode space is free"));
|
|
printf (" %s\n", "-p, --path=PATH, --partition=PARTITION");
|
|
printf (" %s\n", _("Mount point or block device as emitted by the mount(8) command (may be repeated)"));
|
|
printf (" %s\n", "-x, --exclude_device=PATH <STRING>");
|
|
printf (" %s\n", _("Ignore device (only works if -p unspecified)"));
|
|
printf (" %s\n", "-C, --clear");
|
|
printf (" %s\n", _("Clear thresholds"));
|
|
printf (" %s\n", "-E, --exact-match");
|
|
printf (" %s\n", _("For paths or partitions specified with -p, only check for exact paths"));
|
|
printf (" %s\n", "-e, --errors-only");
|
|
printf (" %s\n", _("Display only devices/mountpoints with errors"));
|
|
printf (" %s\n", "-f, --freespace-ignore-reserved");
|
|
printf (" %s\n", _("Don't account root-reserved blocks into freespace in perfdata"));
|
|
printf (" %s\n", "-P, --iperfdata");
|
|
printf (" %s\n", _("Display inode usage in perfdata"));
|
|
printf (" %s\n", "-g, --group=NAME");
|
|
printf (" %s\n", _("Group paths. Thresholds apply to (free-)space of all partitions together"));
|
|
printf (" %s\n", "-k, --kilobytes");
|
|
printf (" %s\n", _("Same as '--units kB'"));
|
|
printf (" %s\n", "-l, --local");
|
|
printf (" %s\n", _("Only check local filesystems"));
|
|
printf (" %s\n", "-L, --stat-remote-fs");
|
|
printf (" %s\n", _("Only check local filesystems against thresholds. Yet call stat on remote filesystems"));
|
|
printf (" %s\n", _("to test if they are accessible (e.g. to detect Stale NFS Handles)"));
|
|
printf (" %s\n", "-M, --mountpoint");
|
|
printf (" %s\n", _("Display the (block) device instead of the mount point"));
|
|
printf (" %s\n", "-m, --megabytes");
|
|
printf (" %s\n", _("Same as '--units MB'"));
|
|
printf (" %s\n", "-A, --all");
|
|
printf (" %s\n", _("Explicitly select all paths. This is equivalent to -R '.*'"));
|
|
printf (" %s\n", "-R, --eregi-path=PATH, --eregi-partition=PARTITION");
|
|
printf (" %s\n", _("Case insensitive regular expression for path/partition (may be repeated)"));
|
|
printf (" %s\n", "-r, --ereg-path=PATH, --ereg-partition=PARTITION");
|
|
printf (" %s\n", _("Regular expression for path or partition (may be repeated)"));
|
|
printf (" %s\n", "-I, --ignore-eregi-path=PATH, --ignore-eregi-partition=PARTITION");
|
|
printf (" %s\n", _("Regular expression to ignore selected path/partition (case insensitive) (may be repeated)"));
|
|
printf (" %s\n", "-i, --ignore-ereg-path=PATH, --ignore-ereg-partition=PARTITION");
|
|
printf (" %s\n", _("Regular expression to ignore selected path or partition (may be repeated)"));
|
|
printf (UT_PLUG_TIMEOUT, DEFAULT_SOCKET_TIMEOUT);
|
|
printf (" %s\n", "-u, --units=STRING");
|
|
printf (" %s\n", _("Choose bytes, kB, MB, GB, TB (default: MB)"));
|
|
printf (UT_VERBOSE);
|
|
printf (" %s\n", "-X, --exclude-type=TYPE");
|
|
printf (" %s\n", _("Ignore all filesystems of indicated type (may be repeated)"));
|
|
printf (" %s\n", "-N, --include-type=TYPE");
|
|
printf (" %s\n", _("Check only filesystems of indicated type (may be repeated)"));
|
|
|
|
printf ("\n");
|
|
printf ("%s\n", _("Examples:"));
|
|
printf (" %s\n", "check_disk -w 10% -c 5% -p /tmp -p /var -C -w 100000 -c 50000 -p /");
|
|
printf (" %s\n", _("Checks /tmp and /var at 10% and 5%, and / at 100MB and 50MB"));
|
|
printf (" %s\n", "check_disk -w 100 -c 50 -C -w 1000 -c 500 -g sidDATA -r '^/oracle/SID/data.*$'");
|
|
printf (" %s\n", _("Checks all filesystems not matching -r at 100M and 50M. The fs matching the -r regex"));
|
|
printf (" %s\n", _("are grouped which means the freespace thresholds are applied to all disks together"));
|
|
printf (" %s\n", "check_disk -w 100 -c 50 -C -w 1000 -c 500 -p /foo -C -w 5% -c 3% -p /bar");
|
|
printf (" %s\n", _("Checks /foo for 1000M/500M and /bar for 5/3%. All remaining volumes use 100M/50M"));
|
|
|
|
printf (UT_SUPPORT);
|
|
}
|
|
|
|
|
|
|
|
void
|
|
print_usage (void)
|
|
{
|
|
printf ("%s\n", _("Usage:"));
|
|
printf (" %s {-w absolute_limit |-w percentage_limit% | -W inode_percentage_limit } {-c absolute_limit|-c percentage_limit% | -K inode_percentage_limit } {-p path | -x device}\n", progname);
|
|
printf ("[-C] [-E] [-e] [-f] [-g group ] [-k] [-l] [-M] [-m] [-R path ] [-r path ]\n");
|
|
printf ("[-t timeout] [-u unit] [-v] [-X type] [-N type]\n");
|
|
}
|
|
|
|
void
|
|
stat_path (struct parameter_list *p)
|
|
{
|
|
/* Stat entry to check that dir exists and is accessible */
|
|
if (verbose >= 3)
|
|
printf("calling stat on %s\n", p->name);
|
|
if (stat (p->name, &stat_buf[0])) {
|
|
if (verbose >= 3)
|
|
printf("stat failed on %s\n", p->name);
|
|
printf("DISK %s - ", _("CRITICAL"));
|
|
die (STATE_CRITICAL, _("%s %s: %s\n"), p->name, _("is not accessible"), strerror(errno));
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
get_stats (struct parameter_list *p, struct fs_usage *fsp) {
|
|
struct parameter_list *p_list;
|
|
struct fs_usage tmpfsp;
|
|
int first = 1;
|
|
|
|
if (p->group == NULL) {
|
|
get_path_stats(p,fsp);
|
|
} else {
|
|
/* find all group members */
|
|
for (p_list = path_select_list; p_list; p_list=p_list->name_next) {
|
|
#ifdef __CYGWIN__
|
|
if (strncmp(p_list->name, "/cygdrive/", 10) != 0)
|
|
continue;
|
|
#endif
|
|
if (p_list->group && ! (strcmp(p_list->group, p->group))) {
|
|
stat_path(p_list);
|
|
get_fs_usage (p_list->best_match->me_mountdir, p_list->best_match->me_devname, &tmpfsp);
|
|
get_path_stats(p_list, &tmpfsp);
|
|
if (verbose >= 3)
|
|
printf("Group %s: adding %lu blocks sized %lu, (%s) used_units=%lu free_units=%lu total_units=%lu mult=%lu\n",
|
|
p_list->group,
|
|
tmpfsp.fsu_blocks,
|
|
tmpfsp.fsu_blocksize,
|
|
p_list->best_match->me_mountdir,
|
|
p_list->dused_units,
|
|
p_list->dfree_units,
|
|
p_list->dtotal_units,
|
|
mult);
|
|
|
|
/* prevent counting the first FS of a group twice since its parameter_list entry
|
|
* is used to carry the information of all file systems of the entire group */
|
|
if (! first) {
|
|
p->total += p_list->total;
|
|
p->available += p_list->available;
|
|
p->available_to_root += p_list->available_to_root;
|
|
p->used += p_list->used;
|
|
|
|
p->dused_units += p_list->dused_units;
|
|
p->dfree_units += p_list->dfree_units;
|
|
p->dtotal_units += p_list->dtotal_units;
|
|
p->inodes_total += p_list->inodes_total;
|
|
p->inodes_free += p_list->inodes_free;
|
|
p->inodes_free_to_root += p_list->inodes_free_to_root;
|
|
p->inodes_used += p_list->inodes_used;
|
|
}
|
|
first = 0;
|
|
}
|
|
if (verbose >= 3)
|
|
printf("Group %s now has: used_units=%lu free_units=%lu total_units=%lu fsu_blocksize=%lu mult=%lu\n",
|
|
p->group,
|
|
p->dused_units,
|
|
p->dfree_units,
|
|
p->dtotal_units,
|
|
tmpfsp.fsu_blocksize,
|
|
mult);
|
|
}
|
|
/* modify devname and mountdir for output */
|
|
p->best_match->me_mountdir = p->best_match->me_devname = p->group;
|
|
}
|
|
/* finally calculate percentages for either plain FS or summed up group */
|
|
p->dused_pct = calculate_percent( p->used, p->used + p->available ); /* used + available can never be > uintmax */
|
|
p->dfree_pct = 100 - p->dused_pct;
|
|
p->dused_inodes_percent = calculate_percent(p->inodes_total - p->inodes_free, p->inodes_total);
|
|
p->dfree_inodes_percent = 100 - p->dused_inodes_percent;
|
|
|
|
}
|
|
|
|
void
|
|
get_path_stats (struct parameter_list *p, struct fs_usage *fsp) {
|
|
p->available = fsp->fsu_bavail;
|
|
p->available_to_root = fsp->fsu_bfree;
|
|
p->used = fsp->fsu_blocks - fsp->fsu_bfree;
|
|
if (freespace_ignore_reserved) {
|
|
/* option activated : we substract the root-reserved space from the total */
|
|
p->total = fsp->fsu_blocks - p->available_to_root + p->available;
|
|
} else {
|
|
/* default behaviour : take all the blocks into account */
|
|
p->total = fsp->fsu_blocks;
|
|
}
|
|
|
|
p->dused_units = p->used*fsp->fsu_blocksize/mult;
|
|
p->dfree_units = p->available*fsp->fsu_blocksize/mult;
|
|
p->dtotal_units = p->total*fsp->fsu_blocksize/mult;
|
|
/* Free file nodes. Not sure the workaround is required, but in case...*/
|
|
p->inodes_free = fsp->fsu_favail > fsp->fsu_ffree ? 0 : fsp->fsu_favail;
|
|
p->inodes_free_to_root = fsp->fsu_ffree; /* Free file nodes for root. */
|
|
p->inodes_used = fsp->fsu_files - fsp->fsu_ffree;
|
|
if (freespace_ignore_reserved) {
|
|
/* option activated : we substract the root-reserved inodes from the total */
|
|
/* not all OS report fsp->fsu_favail, only the ones with statvfs syscall */
|
|
/* for others, fsp->fsu_ffree == fsp->fsu_favail */
|
|
p->inodes_total = fsp->fsu_files - p->inodes_free_to_root + p->inodes_free;
|
|
} else {
|
|
/* default behaviour : take all the inodes into account */
|
|
p->inodes_total = fsp->fsu_files;
|
|
}
|
|
np_add_name(&seen, p->best_match->me_mountdir);
|
|
}
|