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-rw-r--r--web/attachments/178637-check_disk.c874
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1/******************************************************************************
2
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License as published by
5 the Free Software Foundation; either version 2 of the License, or
6 (at your option) any later version.
7
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
12
13 You should have received a copy of the GNU General Public License
14 along with this program; if not, write to the Free Software
15 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
16
17 $Id: check_disk.c,v 1.65m 2006/03/27 08:19:01 maemigh Exp $
18
19*****************************************************************************/
20
21const char *progname = "check_disk";
22const char *program_name = "check_disk"; /* Required for coreutils libs */
23const char *revision = "$Revision: 1.65.1 maemigh $";
24const char *copyright = "1999-2005";
25const char *email = "nagiosplug-devel@lists.sourceforge.net";
26
27 /*
28 * Additional inode code by Jorgen Lundman <lundman@lundman.net>
29 */
30
31
32#include "common.h"
33#if HAVE_INTTYPES_H
34# include <inttypes.h>
35#endif
36#include <assert.h>
37#include "popen.h"
38#include "utils.h"
39#include <stdarg.h>
40#include "../lib/fsusage.h"
41#include "../lib/mountlist.h"
42#if HAVE_LIMITS_H
43# include <limits.h>
44#endif
45
46/* If nonzero, show even filesystems with zero size or
47 uninteresting types. */
48static int show_all_fs = 1;
49
50/* If nonzero, show only local filesystems. */
51static int show_local_fs = 0;
52
53/* If nonzero, show output in HTML format. */
54static int show_html = 0;
55
56/* If nonzero, output percent of space and inodes USED rather than percent free */
57static int show_used = 0;
58
59/* If positive, the units to use when printing sizes;
60 if negative, the human-readable base. */
61/* static int output_block_size; */
62
63/* If nonzero, invoke the `sync' system call before getting any usage data.
64 Using this option can make df very slow, especially with many or very
65 busy disks. Note that this may make a difference on some systems --
66 SunOs4.1.3, for one. It is *not* necessary on Linux. */
67/* static int require_sync = 0; */
68
69/* A filesystem type to display. */
70
71struct name_list
72{
73 char *name;
74 int exclude;
75 int found;
76 int foundexact;
77 int found_len;
78 uintmax_t w_df;
79 uintmax_t c_df;
80 double w_dfp;
81 double c_dfp;
82 double w_idfp;
83 double c_idfp;
84 struct name_list *name_next;
85};
86
87/* Linked list of filesystem types to display.
88 If `fs_select_list' is NULL, list all types.
89 This table is generated dynamically from command-line options,
90 rather than hardcoding into the program what it thinks are the
91 valid filesystem types; let the user specify any filesystem type
92 they want to, and if there are any filesystems of that type, they
93 will be shown.
94
95 Some filesystem types:
96 4.2 4.3 ufs nfs swap ignore io vm efs dbg */
97
98/* static struct name_list *fs_select_list; */
99
100/* Linked list of filesystem types to omit.
101 If the list is empty, don't exclude any types. */
102
103static struct name_list *fs_exclude_list;
104
105static struct name_list *dp_exclude_list;
106
107static struct name_list *path_select_list;
108
109static struct name_list *dev_select_list;
110
111/* Linked list of mounted filesystems. */
112static struct mount_entry *mount_list;
113
114/* For long options that have no equivalent short option, use a
115 non-character as a pseudo short option, starting with CHAR_MAX + 1. */
116enum
117{
118 SYNC_OPTION = CHAR_MAX + 1,
119 NO_SYNC_OPTION,
120 BLOCK_SIZE_OPTION
121};
122
123#ifdef _AIX
124 #pragma alloca
125#endif
126
127int process_arguments (int, char **);
128void print_path (const char *mypath);
129int validate_arguments (uintmax_t, uintmax_t, double, double, double, double, char *);
130int check_disk (double usp, uintmax_t free_disk, double uisp);
131int walk_name_list (struct name_list *list, const char *name);
132void print_help (void);
133void print_usage (void);
134
135uintmax_t w_df = 0;
136uintmax_t c_df = 0;
137double w_dfp = -1.0;
138double c_dfp = -1.0;
139double w_idfp = -1.0;
140double c_idfp = -1.0;
141char *path;
142char *exclude_device;
143char *units;
144uintmax_t mult = 1024 * 1024;
145int verbose = 0;
146int erronly = FALSE;
147int display_mntp = FALSE;
148int longest_length = 0;
149/* Linked list of mounted filesystems. */
150static struct mount_entry *mount_list;
151
152
153
154int
155main (int argc, char **argv)
156{
157 double usp = -1.0, uisp = -1.0;
158 int result = STATE_UNKNOWN;
159 int disk_result = STATE_UNKNOWN;
160 char file_system[MAX_INPUT_BUFFER];
161 char *output;
162 char *details;
163 char *perf;
164 uintmax_t psize;
165 float free_space, free_space_pct, total_space, inode_space_pct;
166
167 struct mount_entry *me;
168 struct fs_usage fsp;
169 struct name_list *temp_list;
170
171 output = strdup (" - free space:");
172 details = strdup ("");
173 perf = strdup ("");
174
175 setlocale (LC_ALL, "");
176 bindtextdomain (PACKAGE, LOCALEDIR);
177 textdomain (PACKAGE);
178
179 mount_list = read_filesystem_list (0);
180
181 if (process_arguments (argc, argv) == ERROR)
182 usage4 (_("Could not parse arguments"));
183
184 /* if a list of paths has been selected, preseed the list with
185 * the longest matching filesystem name by iterating across
186 * the mountlist once ahead of time. this will allow a query on
187 * "/var/log" to return information about "/var" if no "/var/log"
188 * filesystem exists, etc. this is the default behavior already
189 * with df-based checks, but for systems with their own space
190 * checking routines, this should make them more consistent.
191 *
192 * Also keep track of the longest path that will be displayed
193 * in order to format in HTML.
194 */
195
196 /* The walk_name_list function will keep track of longest_length */
197 if(path_select_list){
198 for (me = mount_list; me; me = me->me_next) {
199 walk_name_list(path_select_list, me->me_devname);
200 walk_name_list(path_select_list, me->me_mountdir);
201 }
202 }
203 /* Longest length is only kept track of when the list passed is NOT
204 * and exclude list. Thus we must verify the longest path that
205 * will be displayed in the output.
206 */
207 else {
208 for (me = mount_list; me; me = me->me_next) {
209 if(!walk_name_list(fs_exclude_list, me->me_type) &&
210 !walk_name_list(dp_exclude_list, me->me_devname) &&
211 !walk_name_list(dp_exclude_list, me->me_mountdir)) {
212 get_fs_usage (me->me_mountdir, me->me_devname, &fsp);
213 if (fsp.fsu_blocks && strcmp ("none", me->me_mountdir)) {
214 if (!strcmp(file_system, "none") || display_mntp) {
215 if(strlen(me->me_devname) > longest_length) longest_length = strlen(me->me_devname);
216 } else {
217 if(strlen(me->me_mountdir) > longest_length) longest_length = strlen(me->me_mountdir);
218 }
219 }
220 }
221 }
222 }
223 /* now pretend we never saw anything, but keep found_len.
224 * thus future searches will only match the best match */
225 for (temp_list = path_select_list; temp_list; temp_list=temp_list->name_next){
226 temp_list->found=0;
227 }
228
229 /* for every mount entry */
230 for (me = mount_list; me; me = me->me_next) {
231 /* if there's a list of paths to select, the current mount
232 * entry matches in path or device name, get fs usage */
233 if (path_select_list &&
234 (walk_name_list(path_select_list, me->me_devname) ||
235 walk_name_list(path_select_list, me->me_mountdir))) {
236 get_fs_usage (me->me_mountdir, me->me_devname, &fsp);
237 /* else if there's a list of paths/devices to select (but
238 * we didn't match above) skip to the next mount entry */
239 } else if (dev_select_list || path_select_list) {
240 continue;
241 /* skip remote filesystems if we're not interested in them */
242 } else if (me->me_remote && show_local_fs) {
243 continue;
244 /* skip pseudo fs's if we haven't asked for all fs's */
245 } else if (me->me_dummy && !show_all_fs) {
246 continue;
247 /* skip excluded fstypes */
248 } else if (fs_exclude_list && walk_name_list (fs_exclude_list, me->me_type)) {
249 continue;
250 /* skip excluded fs's */
251 } else if (dp_exclude_list &&
252 (walk_name_list (dp_exclude_list, me->me_devname) ||
253 walk_name_list (dp_exclude_list, me->me_mountdir))) {
254 continue;
255 /* otherwise, get fs usage */
256 } else {
257 get_fs_usage (me->me_mountdir, me->me_devname, &fsp);
258 }
259 if (fsp.fsu_blocks && strcmp ("none", me->me_mountdir)) {
260 usp = (double)(fsp.fsu_blocks - fsp.fsu_bavail) * 100 / fsp.fsu_blocks;
261 uisp = (double)(fsp.fsu_files - fsp.fsu_ffree) * 100 / fsp.fsu_files;
262 disk_result = check_disk (usp, fsp.fsu_bavail, uisp);
263
264
265 result = max_state (disk_result, result);
266 psize = fsp.fsu_blocks*fsp.fsu_blocksize/mult;
267
268
269 /* Moved this computation up here so we can add it
270 * to perf */
271 inode_space_pct = (float)fsp.fsu_ffree*100/fsp.fsu_files;
272
273 asprintf (&perf, "%s %s", perf,
274 perfdata ((!strcmp(file_system, "none") || display_mntp) ? me->me_devname : me->me_mountdir,
275 psize-(fsp.fsu_bavail*fsp.fsu_blocksize/mult), units,
276 TRUE, min ((uintmax_t)psize-(uintmax_t)w_df, (uintmax_t)((1.0-w_dfp/100.0)*psize)),
277 TRUE, min ((uintmax_t)psize-(uintmax_t)c_df, (uintmax_t)((1.0-c_dfp/100.0)*psize)),
278 TRUE, inode_space_pct,
279
280 TRUE, psize));
281 if (disk_result==STATE_OK && erronly && !verbose)
282 continue;
283
284 free_space = (float)fsp.fsu_bavail*fsp.fsu_blocksize/mult;
285 free_space_pct = (float)fsp.fsu_bavail*100/fsp.fsu_blocks;
286 total_space = (float)fsp.fsu_blocks*fsp.fsu_blocksize/mult;
287 if (disk_result!=STATE_OK || verbose>=0) {
288 if (show_html == 1) {
289 int x = 0;
290 int delta_len = (longest_length - strlen((!strcmp(file_system, "none") || display_mntp) ? me->me_devname : me->me_mountdir));
291 for(x=delta_len; x >= 0; x--) {
292 if((!strcmp(file_system, "none") || display_mntp)) strcat(me->me_devname, " ");
293 else strcat(me->me_mountdir, " ");
294 }
295 asprintf (&output, ("%s <br/>%s %6.0f %s (%3.0f%% inode=%3.0f%%);"),
296 output,
297 (!strcmp(file_system, "none") || display_mntp) ? me->me_devname : me->me_mountdir,
298 free_space,
299 units,
300 (show_used == 1) ? 100-free_space_pct : free_space_pct,
301 (show_used == 1) ? 100-inode_space_pct : inode_space_pct);
302 } else {
303 asprintf (&output, ("%s %s %.0f %s (%.0f%% inode=%.0f%%);"),
304 output,
305 (!strcmp(file_system, "none") || display_mntp) ? me->me_devname : me->me_mountdir,
306 free_space,
307 units,
308 (show_used == 1) ? 100-free_space_pct : free_space_pct,
309 (show_used == 1) ? 100-inode_space_pct : inode_space_pct);
310 }
311 }
312 asprintf (&details, _("%s\n\
313%.0f of %.0f %s (%.0f%% inode=%.0f%%) free on %s (type %s mounted on %s) warn:%lu crit:%lu warn%%:%.0f%% crit%%:%.0f%%"),
314 details, free_space, total_space, units, free_space_pct, inode_space_pct,
315 me->me_devname, me->me_type, me->me_mountdir,
316 (unsigned long)w_df, (unsigned long)c_df, w_dfp, c_dfp);
317
318 }
319
320 }
321
322 if (verbose > 2)
323 asprintf (&output, "%s%s", output, details);
324
325 /* Override result if paths specified and not found */
326 temp_list = path_select_list;
327 while (temp_list) {
328 if (!temp_list->found) {
329 asprintf (&output, _("%s [%s not found]"), output, temp_list->name);
330 result = STATE_CRITICAL;
331 }
332 temp_list = temp_list->name_next;
333 }
334 if (show_html == 1)
335 printf ("<pre>DISK %s%s|%s\n", state_text (result), output, perf);
336 else
337 printf ("DISK %s%s|%s\n", state_text (result), output, perf);
338 return result;
339}
340
341
342
343/* process command-line arguments */
344int
345process_arguments (int argc, char **argv)
346{
347 int c;
348 struct name_list *se;
349 struct name_list **pathtail = &path_select_list;
350 struct name_list **fstail = &fs_exclude_list;
351 struct name_list **dptail = &dp_exclude_list;
352 struct name_list *temp_list;
353 int result = OK;
354 struct stat *stat_buf;
355
356 unsigned long l;
357
358 int option = 0;
359 static struct option longopts[] = {
360 {"timeout", required_argument, 0, 't'},
361 {"warning", required_argument, 0, 'w'},
362 {"critical", required_argument, 0, 'c'},
363 {"iwarning", required_argument, 0, 'W'},
364 /* Dang, -C is taken. We might want to reshuffle this. */
365 {"icritical", required_argument, 0, 'K'},
366 {"local", required_argument, 0, 'l'},
367 {"kilobytes", required_argument, 0, 'k'},
368 {"megabytes", required_argument, 0, 'm'},
369 {"units", required_argument, 0, 'u'},
370 {"path", required_argument, 0, 'p'},
371 {"partition", required_argument, 0, 'p'},
372 {"exclude_device", required_argument, 0, 'x'},
373 {"exclude_path", required_argument, 0, 's'},
374 {"exclude-type", required_argument, 0, 'X'},
375 {"mountpoint", no_argument, 0, 'M'},
376 {"errors-only", no_argument, 0, 'e'},
377 {"verbose", no_argument, 0, 'v'},
378 {"quiet", no_argument, 0, 'q'},
379 {"clear", no_argument, 0, 'C'},
380 {"version", no_argument, 0, 'V'},
381 {"help", no_argument, 0, 'h'},
382 {"html", no_argument, 0, 'H'},
383 {"used", no_argument, 0, 'U'},
384 {0, 0, 0, 0}
385 };
386
387 if (argc < 2)
388 return ERROR;
389
390 se = (struct name_list *) malloc (sizeof (struct name_list));
391 se->name = strdup ("iso9660");
392 se->name_next = NULL;
393 se->found = 0;
394 se->foundexact = 0;
395 se->exclude = 0;
396 se->found_len = 0;
397 *fstail = se;
398 fstail = &se->name_next;
399 for (c = 1; c < argc; c++)
400 if (strcmp ("-to", argv[c]) == 0)
401 strcpy (argv[c], "-t");
402
403 while (1) {
404 c = getopt_long (argc, argv, "+?VqhHiUveCt:c:w:K:W:u:p:x:s:X:mklM", longopts, &option);
405
406 if (c == -1 || c == EOF)
407 break;
408
409 switch (c) {
410 case 't': /* timeout period */
411 if (is_integer (optarg)) {
412 timeout_interval = atoi (optarg);
413 break;
414 }
415 else {
416 usage2 (_("Timeout interval must be a positive integer"), optarg);
417 }
418 case 'w': /* warning threshold */
419 if (is_intnonneg (optarg)) {
420 w_df = atoi (optarg);
421 break;
422 }
423 else if (strpbrk (optarg, ",:") &&
424 strstr (optarg, "%") &&
425 sscanf (optarg, "%lu%*[:,]%lf%%", &l, &w_dfp) == 2) {
426 w_df = (uintmax_t)l;
427 break;
428 }
429 else if (strstr (optarg, "%") && sscanf (optarg, "%lf%%", &w_dfp) == 1) {
430 break;
431 }
432 else {
433 usage4 (_("Warning threshold must be integer or percentage!"));
434 }
435 case 'c': /* critical threshold */
436 if (is_intnonneg (optarg)) {
437 c_df = atoi (optarg);
438 break;
439 }
440 else if (strpbrk (optarg, ",:") &&
441 strstr (optarg, "%") &&
442 sscanf (optarg, "%lu%*[,:]%lf%%", &l, &c_dfp) == 2) {
443 c_df = (uintmax_t)l;
444 break;
445 }
446 else if (strstr (optarg, "%") && sscanf (optarg, "%lf%%", &c_dfp) == 1) {
447 break;
448 }
449 else {
450 usage4 (_("Critical threshold must be integer or percentage!"));
451 }
452
453
454 case 'W': /* warning inode threshold */
455 if (strstr (optarg, "%") && sscanf (optarg, "%lf%%", &w_idfp) == 1) {
456 break;
457 }
458 else {
459 usage (_("Warning inode threshold must be percentage!\n"));
460 }
461 case 'K': /* kritical inode threshold */
462 if (strstr (optarg, "%") && sscanf (optarg, "%lf%%", &c_idfp) == 1) {
463 break;
464 }
465 else {
466 usage (_("Critical inode threshold must be percentage!\n"));
467 }
468 case 'u':
469 if (units)
470 free(units);
471 if (! strcmp (optarg, "bytes")) {
472 mult = (uintmax_t)1;
473 units = strdup ("B");
474 } else if (! strcmp (optarg, "kB")) {
475 mult = (uintmax_t)1024;
476 units = strdup ("kB");
477 } else if (! strcmp (optarg, "MB")) {
478 mult = (uintmax_t)1024 * 1024;
479 units = strdup ("MB");
480 } else if (! strcmp (optarg, "GB")) {
481 mult = (uintmax_t)1024 * 1024 * 1024;
482 units = strdup ("GB");
483 } else if (! strcmp (optarg, "TB")) {
484 mult = (uintmax_t)1024 * 1024 * 1024 * 1024;
485 units = strdup ("TB");
486 } else {
487 die (STATE_UNKNOWN, _("unit type %s not known\n"), optarg);
488 }
489 if (units == NULL)
490 die (STATE_UNKNOWN, _("failed allocating storage for '%s'\n"), "units");
491 break;
492 case 'k': /* display mountpoint */
493 mult = 1024;
494 if (units)
495 free(units);
496 units = strdup ("kB");
497 break;
498 case 'm': /* display mountpoint */
499 mult = 1024 * 1024;
500 if (units)
501 free(units);
502 units = strdup ("MB");
503 break;
504 case 'l':
505 show_local_fs = 1;
506 break;
507 case 'p': /* select path */
508 se = (struct name_list *) malloc (sizeof (struct name_list));
509 se->name = optarg;
510 se->name_next = NULL;
511 se->w_df = w_df;
512 se->c_df = c_df;
513 se->w_dfp = w_dfp;
514 se->c_dfp = c_dfp;
515 se->w_idfp = w_idfp;
516 se->c_idfp = c_idfp;
517 se->found = 0;
518 se->foundexact = 0;
519 se->found_len = 0;
520 se->exclude = 0;
521 *pathtail = se;
522 pathtail = &se->name_next;
523 break;
524 case 'x': /* exclude path or partition */
525 se = (struct name_list *) malloc (sizeof (struct name_list));
526 se->name = optarg;
527 se->name_next = NULL;
528
529 /* If you don't clear the w_fd etc values here, they
530 * get processed when you walk the list and assigned
531 * to the global w_df!
532 */
533 se->w_df = 0;
534 se->c_df = 0;
535 se->w_dfp = 0;
536 se->c_dfp = 0;
537 se->w_idfp = 0;
538 se->c_idfp = 0;
539 se->found = 0;
540 se->foundexact = 0;
541 se->found_len = 0;
542 se->exclude = 1;
543 *dptail = se;
544 dptail = &se->name_next;
545 break;
546 case 's': /* exclude path or partition */
547 se = (struct name_list *) malloc (sizeof (struct name_list));
548 se->name = optarg;
549 se->name_next = NULL;
550
551 /* If you don't clear the w_fd etc values here, they
552 * get processed when you walk the list and assigned
553 * to the global w_df!
554 */
555 se->w_df = 0;
556 se->c_df = 0;
557 se->w_dfp = 0;
558 se->c_dfp = 0;
559 se->w_idfp = 0;
560 se->c_idfp = 0;
561 se->found = 0;
562 se->foundexact = 0;
563 se->found_len = 0;
564 se->exclude = 2;
565 *dptail = se;
566 dptail = &se->name_next;
567 break;
568 case 'X': /* exclude file system type */
569 se = (struct name_list *) malloc (sizeof (struct name_list));
570 se->name = optarg;
571 se->name_next = NULL;
572 /* If you don't clear the w_fd etc values here, they
573 * get processed when you walk the list and assigned
574 * to the global w_df!
575 */
576 se->w_df = 0;
577 se->c_df = 0;
578 se->w_dfp = 0;
579 se->c_dfp = 0;
580 se->w_idfp = 0;
581 se->c_idfp = 0;
582 se->found = 0;
583 se->foundexact = 0;
584 se->found_len = 0;
585 *fstail = se;
586 fstail = &se->name_next;
587 break;
588 case 'v': /* verbose */
589 verbose++;
590 break;
591 case 'q': /* verbose */
592 verbose--;
593 break;
594 case 'e':
595 erronly = TRUE;
596 break;
597 case 'M': /* display mountpoint */
598 display_mntp = TRUE;
599 break;
600 case 'C':
601 w_df = 0;
602 c_df = 0;
603 w_dfp = -1.0;
604 c_dfp = -1.0;
605 w_idfp = -1.0;
606 c_idfp = -1.0;
607 break;
608 case 'H': /* HTML formatted output */
609 show_html = 1;
610 break;
611 case 'U':
612 show_used = 1;
613 break;
614 case 'V': /* version */
615 print_revision (progname, revision);
616 exit (STATE_OK);
617 case 'h': /* help */
618 print_help ();
619 exit (STATE_OK);
620 case '?': /* help */
621 usage (_("Unknown argument"));
622 }
623 }
624
625 /* Support for "check_disk warn crit [fs]" with thresholds at used level */
626 c = optind;
627 if (w_dfp < 0 && argc > c && is_intnonneg (argv[c]))
628 w_dfp = (100.0 - atof (argv[c++]));
629
630 if (c_dfp < 0 && argc > c && is_intnonneg (argv[c]))
631 c_dfp = (100.0 - atof (argv[c++]));
632
633 if (argc > c && path == NULL) {
634 se = (struct name_list *) malloc (sizeof (struct name_list));
635 se->name = strdup (argv[c++]);
636 se->name_next = NULL;
637 se->w_df = w_df;
638 se->c_df = c_df;
639 se->w_dfp = w_dfp;
640 se->c_dfp = c_dfp;
641 se->w_idfp = w_idfp;
642 se->c_idfp = c_idfp;
643 se->found =0;
644 se->foundexact = 0;
645 se->found_len = 0;
646 se->exclude = 0;
647 *pathtail = se;
648 }
649
650 if (path_select_list) {
651 temp_list = path_select_list;
652 stat_buf = malloc(sizeof *stat_buf);
653 while (temp_list) {
654 /* Stat each entry to check that dir exists */
655 if (stat (temp_list->name, &stat_buf[0])) {
656 printf("DISK %s - ", _("CRITICAL"));
657 die (STATE_CRITICAL, _("%s does not exist\n"), temp_list->name);
658 }
659 if (validate_arguments (temp_list->w_df,
660 temp_list->c_df,
661 temp_list->w_dfp,
662 temp_list->c_dfp,
663 temp_list->w_idfp,
664 temp_list->c_idfp,
665 temp_list->name) == ERROR)
666 result = ERROR;
667 temp_list = temp_list->name_next;
668 }
669 free(stat_buf);
670 return result;
671 } else {
672 return validate_arguments (w_df, c_df, w_dfp, c_dfp, w_idfp, c_idfp, NULL);
673 }
674}
675
676
677
678void
679print_path (const char *mypath)
680{
681 if (mypath == NULL)
682 printf ("\n");
683 else
684 printf (_(" for %s\n"), mypath);
685
686 return;
687}
688
689
690
691int
692validate_arguments (uintmax_t w, uintmax_t c, double wp, double cp, double iwp, double icp, char *mypath)
693{
694 if (w < 0 && c < 0 && wp < 0.0 && cp < 0.0) {
695 printf (_("INPUT ERROR: No thresholds specified"));
696 print_path (mypath);
697 return ERROR;
698 }
699 else if ((wp >= 0.0 || cp >= 0.0) &&
700 (wp < 0.0 || cp < 0.0 || wp > 100.0 || cp > 100.0 || cp > wp)) {
701 printf (_("\
702INPUT ERROR: C_DFP (%f) should be less than W_DFP (%.1f) and both should be between zero and 100 percent, inclusive"),
703 cp, wp);
704 print_path (mypath);
705 return ERROR;
706 }
707 else if ((iwp >= 0.0 || icp >= 0.0) &&
708 (iwp < 0.0 || icp < 0.0 || iwp > 100.0 || icp > 100.0 || icp > iwp)) {
709 printf (_("\
710INPUT ERROR: C_IDFP (%f) should be less than W_IDFP (%.1f) and both should be between zero and 100 percent, inclusive"),
711 icp, iwp);
712 print_path (mypath);
713 return ERROR;
714 }
715 else if ((w > 0 || c > 0) && (w == 0 || c == 0 || c > w)) {
716 printf (_("\
717INPUT ERROR: C_DF (%lu) should be less than W_DF (%lu) and both should be greater than zero"),
718 (unsigned long)c, (unsigned long)w);
719 print_path (mypath);
720 return ERROR;
721 }
722
723 if (units == NULL) {
724 units = strdup ("MB");
725 mult = (uintmax_t)1024 * 1024;
726 }
727 return OK;
728}
729
730
731
732int
733
734check_disk (double usp, uintmax_t free_disk, double uisp)
735{
736 int result = STATE_UNKNOWN;
737 /* check the percent used space against thresholds */
738 if (usp >= 0.0 && c_dfp >=0.0 && usp >= (100.0 - c_dfp))
739 result = STATE_CRITICAL;
740 else if (uisp >= 0.0 && c_idfp >=0.0 && uisp >= (100.0 - c_idfp))
741 result = STATE_CRITICAL;
742 else if (c_df > 0 && free_disk <= c_df)
743 result = STATE_CRITICAL;
744 else if (usp >= 0.0 && w_dfp >=0.0 && usp >= (100.0 - w_dfp))
745 result = STATE_WARNING;
746 else if (uisp >= 0.0 && w_idfp >=0.0 && uisp >= (100.0 - w_idfp))
747 result = STATE_WARNING;
748 else if (w_df > 0 && free_disk <= w_df)
749 result = STATE_WARNING;
750 else if (usp >= 0.0)
751 result = STATE_OK;
752 return result;
753}
754
755
756
757int
758walk_name_list (struct name_list *list, const char *name)
759{
760 int foundexact = FALSE, foundmatch = FALSE;
761 int name_len;
762 name_len = strlen(name);
763 while (list) {
764 int list_name_len;
765 list_name_len = strlen(list->name);
766 if ((list->exclude == 1 && name_len == list_name_len && strncmp(list->name, name, list_name_len-1) == 0) ||
767 (list->foundexact == 0 && list->exclude == 0 && name_len < list_name_len && strncmp(list->name, name, name_len-1) == 0) ||
768 (list->exclude == 0 && name_len == list_name_len && strncmp(list->name, name, name_len-1) == 0) ||
769 (list->exclude == 2 && name_len >= list_name_len && strncmp(list->name, name, list_name_len-1) == 0)) {
770 /* Set to -1 for now to note it was a potential match. If an EXACT match is found later,
771 then reset this found to 0. If not, set it to 1. */
772 list->found = -1;
773 list->found_len = name_len;
774 /* Grab the longest string length that is not being excluded in order to format HTML properly */
775 if (name_len > longest_length && list->exclude == 0) {longest_length = name_len;}
776 /* if required for name_lists that have not saved w_df, etc (eg exclude lists) */
777 if (list->w_df) w_df = list->w_df;
778 if (list->c_df) c_df = list->c_df;
779 if (list->w_dfp>=0.0) w_dfp = list->w_dfp;
780 if (list->c_dfp>=0.0) c_dfp = list->c_dfp;
781 if (name_len == list_name_len) {
782 foundexact=TRUE;
783 list->foundexact = TRUE;
784 list->found = 1;
785 }
786 foundmatch = TRUE;
787 }
788 list = list->name_next;
789 }
790 /* Traverse the list again to reset the found variable properly */
791 while (list) {
792 if (list->found == -1 && foundexact == TRUE) list->found = 0;
793 if (list->found == -1 && foundexact == FALSE) list->found =1;
794 list = list->name_next;
795 printf("tried ");
796 }
797 return foundmatch;
798}
799
800
801
802void
803print_help (void)
804{
805 print_revision (progname, revision);
806
807 printf ("Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>\n");
808 printf (COPYRIGHT, copyright, email);
809
810 printf (_("This plugin checks the amount of used disk space on a mounted file system"));
811 printf (_("and generates an alert if free space is less than one of the threshold values"));
812
813 printf ("\n\n");
814
815 print_usage ();
816
817 printf (_(UT_HELP_VRSN));
818
819 printf (" %s\n", "-w, --warning=INTEGER");
820 printf (" %s\n", _("Exit with WARNING status if less than INTEGER units of disk are free"));
821 printf (" %s\n", "-w, --warning=PERCENT%");
822 printf (" %s\n", _("Exit with WARNING status if less than PERCENT of disk space is free"));
823 printf (" %s\n", "-W, --iwarning=PERCENT%");
824 printf (" %s\n", _("Exit with WARNING status if less than PERCENT of inode space is free"));
825 printf (" %s\n", "-K, --icritical=PERCENT%");
826 printf (" %s\n", _("Exit with CRITICAL status if less than PERCENT of inode space is free"));
827 printf (" %s\n", "-c, --critical=INTEGER");
828 printf (" %s\n", _("Exit with CRITICAL status if less than INTEGER units of disk are free"));
829 printf (" %s\n", "-c, --critical=PERCENT%");
830 printf (" %s\n", _("Exit with CRITCAL status if less than PERCENT of disk space is free"));
831 printf (" %s\n", "-C, --clear");
832 printf (" %s\n", _("Clear thresholds"));
833 printf (" %s\n", "-u, --units=STRING");
834 printf (" %s\n", _("Choose bytes, kB, MB, GB, TB (default: MB)"));
835 printf (" %s\n", "-k, --kilobytes");
836 printf (" %s\n", _("Same as '--units kB'"));
837 printf (" %s\n", "-m, --megabytes");
838 printf (" %s\n", _("Same as '--units MB'"));
839 printf (" %s\n", "-l, --local");
840 printf (" %s\n", _("Only check local filesystems"));
841 printf (" %s\n", "-p, --path=PATH, --partition=PARTITION");
842 printf (" %s\n", _("Path or partition (may be repeated)"));
843 printf (" %s\n", "-x, --exclude_device=PATH <STRING>");
844 printf (" %s\n", _("Ignore device (only works if -p unspecified)"));
845 printf (" %s\n", "-s, --exclude_path=PATH <STRING>");
846 printf (" %s\n", _("Ignore device (only works if -p unspecified)"));
847 printf (" %s\n", _("-X, --exclude-type=TYPE <STRING>"));
848 printf (" %s\n", _("Ignore all filesystems of indicated type (may be repeated)"));
849 printf (" %s\n", "-m, --mountpoint");
850 printf (" %s\n", _("Display the mountpoint instead of the partition"));
851 printf (" %s\n", "-e, --errors-only");
852 printf (" %s\n", _("Display only devices/mountpoints with errors"));
853 printf (" %s\n", "-H, --html");
854 printf (" %s\n", _("Output in HTML format"));
855 printf (" %s\n", "-U, --used");
856 printf (" %s\n", _("Output percentage of space/inodes used rather than free"));
857 printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
858 printf (_(UT_VERBOSE));
859 printf ("\n");
860 printf ("%s\n", _("Examples:"));
861 printf (" %s\n", "check_disk -w 10% -c 5% -p /tmp -p /var -C -w 100000 -c 50000 -p /");
862 printf (" %s\n", _("Checks /tmp and /var at 10% and 5%, and / at 100MB and 50MB"));
863 printf (_(UT_SUPPORT));
864}
865
866
867
868void
869print_usage (void)
870{
871 printf (_("Usage:"));
872 printf (" %s -w limit -c limit [-p path | -x device | -s path] [-t timeout]", progname);
873 printf ("[-m] [-e] [-W limit] [-K limit] [-H] [-U] [-v] [-q]\n");
874}