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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 1.65.3m 2006/05/20 21:34:01 maemigh Exp $
18
19*****************************************************************************/
20
21const char *progname = "check_disk";
22const char *program_name = "check_disk"; /* Required for coreutils libs */
23const char *revision = "$Revision: 1.65.3 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 zero, display all mounts even with -p specified */
60static int path_select_exclude_others = 1;
61
62/* If positive, the units to use when printing sizes;
63 if negative, the human-readable base. */
64/* static int output_block_size; */
65
66/* If nonzero, invoke the `sync' system call before getting any usage data.
67 Using this option can make df very slow, especially with many or very
68 busy disks. Note that this may make a difference on some systems --
69 SunOs4.1.3, for one. It is *not* necessary on Linux. */
70/* static int require_sync = 0; */
71
72/* A filesystem type to display. */
73
74struct name_list
75{
76 char *name;
77 int exclude;
78 int found;
79 int foundexact;
80 int found_len;
81 uintmax_t w_df;
82 uintmax_t c_df;
83 double w_dfp;
84 double c_dfp;
85 double w_idfp;
86 double c_idfp;
87 struct name_list *name_next;
88};
89
90/* Linked list of filesystem types to display.
91 If `fs_select_list' is NULL, list all types.
92 This table is generated dynamically from command-line options,
93 rather than hardcoding into the program what it thinks are the
94 valid filesystem types; let the user specify any filesystem type
95 they want to, and if there are any filesystems of that type, they
96 will be shown.
97
98 Some filesystem types:
99 4.2 4.3 ufs nfs swap ignore io vm efs dbg */
100
101/* static struct name_list *fs_select_list; */
102
103/* Linked list of filesystem types to omit.
104 If the list is empty, don't exclude any types. */
105
106static struct name_list *fs_exclude_list;
107
108static struct name_list *dp_exclude_list;
109
110static struct name_list *path_select_list;
111
112static struct name_list *dev_select_list;
113
114/* Linked list of mounted filesystems. */
115static struct mount_entry *mount_list;
116
117/* For long options that have no equivalent short option, use a
118 non-character as a pseudo short option, starting with CHAR_MAX + 1. */
119enum
120{
121 SYNC_OPTION = CHAR_MAX + 1,
122 NO_SYNC_OPTION,
123 BLOCK_SIZE_OPTION
124};
125
126#ifdef _AIX
127 #pragma alloca
128#endif
129
130int process_arguments (int, char **);
131void print_path (const char *mypath);
132int validate_arguments (uintmax_t, uintmax_t, double, double, double, double, char *);
133int check_disk (double usp, uintmax_t free_disk, double uisp);
134int walk_name_list (struct name_list *list, const char *name);
135void print_help (void);
136void print_usage (void);
137
138uintmax_t w_df = 0;
139uintmax_t c_df = 0;
140double w_dfp = -1.0;
141double c_dfp = -1.0;
142double w_idfp = -1.0;
143double c_idfp = -1.0;
144uintmax_t dw_df = 0;
145uintmax_t dc_df = 0;
146double dw_dfp = -1.0;
147double dc_dfp = -1.0;
148double dw_idfp = -1.0;
149double dc_idfp = -1.0;
150
151char *path;
152char *exclude_device;
153char *units;
154uintmax_t mult = 1024 * 1024;
155int verbose = 0;
156int erronly = FALSE;
157int display_mntp = FALSE;
158int longest_length = 0;
159/* Linked list of mounted filesystems. */
160static struct mount_entry *mount_list;
161
162
163
164int
165main (int argc, char **argv)
166{
167 double usp = -1.0, uisp = -1.0;
168 int result = STATE_UNKNOWN;
169 int disk_result = STATE_UNKNOWN;
170 char file_system[MAX_INPUT_BUFFER];
171 char *output;
172 char *details;
173 char *perf;
174 uintmax_t psize;
175 float free_space, free_space_pct, total_space, inode_space_pct;
176
177 struct mount_entry *me;
178 struct fs_usage fsp;
179 struct name_list *temp_list;
180
181 output = strdup (" - free space:");
182 details = strdup ("");
183 perf = strdup ("");
184
185 setlocale (LC_ALL, "");
186 bindtextdomain (PACKAGE, LOCALEDIR);
187 textdomain (PACKAGE);
188
189 mount_list = read_filesystem_list (0);
190
191 if (process_arguments (argc, argv) == ERROR)
192 usage4 (_("Could not parse arguments"));
193
194 /* if a list of paths has been selected, preseed the list with
195 * the longest matching filesystem name by iterating across
196 * the mountlist once ahead of time. this will allow a query on
197 * "/var/log" to return information about "/var" if no "/var/log"
198 * filesystem exists, etc. this is the default behavior already
199 * with df-based checks, but for systems with their own space
200 * checking routines, this should make them more consistent.
201 *
202 * Also keep track of the longest path that will be displayed
203 * in order to format in HTML.
204 */
205
206 /* The walk_name_list function will keep track of longest_length */
207 if(path_select_list){
208 for (me = mount_list; me; me = me->me_next) {
209 walk_name_list(path_select_list, me->me_devname);
210 walk_name_list(path_select_list, me->me_mountdir);
211 }
212 }
213 /* Longest length is only kept track of when the list passed is NOT
214 * and exclude list. Thus we must verify the longest path that
215 * will be displayed in the output.
216 */
217 else {
218 for (me = mount_list; me; me = me->me_next) {
219 if(!walk_name_list(fs_exclude_list, me->me_type) &&
220 !walk_name_list(dp_exclude_list, me->me_devname) &&
221 !walk_name_list(dp_exclude_list, me->me_mountdir)) {
222 get_fs_usage (me->me_mountdir, me->me_devname, &fsp);
223 if (fsp.fsu_blocks && strcmp ("none", me->me_mountdir)) {
224 if (!strcmp(file_system, "none") || display_mntp) {
225 if(strlen(me->me_devname) > longest_length) longest_length = strlen(me->me_devname);
226 } else {
227 if(strlen(me->me_mountdir) > longest_length) longest_length = strlen(me->me_mountdir);
228 }
229 }
230 }
231 }
232 }
233 /* now pretend we never saw anything, but keep found_len.
234 * thus future searches will only match the best match */
235 for (temp_list = path_select_list; temp_list; temp_list=temp_list->name_next){
236 temp_list->found=0;
237 }
238
239 /* for every mount entry */
240 for (me = mount_list; me; me = me->me_next) {
241 /* if there's a list of paths to select, the current mount
242 * entry matches in path or device name, get fs usage */
243 if (path_select_list &&
244 (walk_name_list(path_select_list, me->me_devname) ||
245 walk_name_list(path_select_list, me->me_mountdir))) {
246 get_fs_usage (me->me_mountdir, me->me_devname, &fsp);
247 /* else if there's a list of paths/devices to select (but
248 * we didn't match above) skip to the next mount entry */
249 } else if (dev_select_list || (path_select_list && path_select_exclude_others)) {
250 continue;
251 /* skip remote filesystems if we're not interested in them */
252 } else if (me->me_remote && show_local_fs) {
253 continue;
254 /* skip pseudo fs's if we haven't asked for all fs's */
255 } else if (me->me_dummy && !show_all_fs) {
256 continue;
257 /* skip excluded fstypes */
258 } else if (fs_exclude_list && walk_name_list (fs_exclude_list, me->me_type)) {
259 continue;
260 /* skip excluded fs's */
261 } else if (dp_exclude_list &&
262 (walk_name_list (dp_exclude_list, me->me_devname) ||
263 walk_name_list (dp_exclude_list, me->me_mountdir))) {
264 continue;
265 /* otherwise, get fs usage */
266 } else {
267 /* Reset thresholds to defaults */
268 w_df = dw_df;
269 c_df = dc_df;
270 w_dfp = dw_dfp;
271 c_dfp = dc_dfp;
272 w_idfp = dw_idfp;
273 c_idfp = dc_idfp;
274 get_fs_usage (me->me_mountdir, me->me_devname, &fsp);
275 }
276 if (fsp.fsu_blocks && strcmp ("none", me->me_mountdir)) {
277 usp = (double)(fsp.fsu_blocks - fsp.fsu_bavail) * 100 / fsp.fsu_blocks;
278 uisp = (double)(fsp.fsu_files - fsp.fsu_ffree) * 100 / fsp.fsu_files;
279 disk_result = check_disk (usp, fsp.fsu_bavail, uisp);
280
281
282 result = max_state (disk_result, result);
283 psize = fsp.fsu_blocks*fsp.fsu_blocksize/mult;
284
285
286 /* Moved this computation up here so we can add it
287 * to perf */
288 inode_space_pct = (float)fsp.fsu_ffree*100/fsp.fsu_files;
289
290 asprintf (&perf, "%s %s", perf,
291 perfdata ((!strcmp(file_system, "none") || display_mntp) ? me->me_devname : me->me_mountdir,
292 psize-(fsp.fsu_bavail*fsp.fsu_blocksize/mult), units,
293 TRUE, min ((uintmax_t)psize-(uintmax_t)w_df, (uintmax_t)((1.0-w_dfp/100.0)*psize)),
294 TRUE, min ((uintmax_t)psize-(uintmax_t)c_df, (uintmax_t)((1.0-c_dfp/100.0)*psize)),
295 TRUE, inode_space_pct,
296
297 TRUE, psize));
298 if (disk_result==STATE_OK && erronly && !verbose)
299 continue;
300
301 free_space = (float)fsp.fsu_bavail*fsp.fsu_blocksize/mult;
302 free_space_pct = (float)fsp.fsu_bavail*100/fsp.fsu_blocks;
303 total_space = (float)fsp.fsu_blocks*fsp.fsu_blocksize/mult;
304 if (disk_result!=STATE_OK || verbose>=0) {
305 if (show_html == 1) {
306 int x = 0;
307 int delta_len = (longest_length - strlen((!strcmp(file_system, "none") || display_mntp) ? me->me_devname : me->me_mountdir));
308 for(x=delta_len; x >= 0; x--) {
309 if((!strcmp(file_system, "none") || display_mntp)) strcat(me->me_devname, " ");
310 else strcat(me->me_mountdir, " ");
311 }
312 asprintf (&output, ("%s <br/>%s%s %6.0f %s (%3.0f%% inode=%3.0f%%);%s"),
313 output,
314 (disk_result!=STATE_OK) ? "*" : " ",
315 (!strcmp(file_system, "none") || display_mntp) ? me->me_devname : me->me_mountdir,
316 free_space,
317 units,
318 (show_used == 1) ? 100-free_space_pct : free_space_pct,
319 (show_used == 1) ? 100-inode_space_pct : inode_space_pct,
320 (disk_result!=STATE_OK) ? "*" : " ");
321 } else {
322 asprintf (&output, ("%s %s %.0f %s (%.0f%% inode=%.0f%%);"),
323 output,
324 (!strcmp(file_system, "none") || display_mntp) ? me->me_devname : me->me_mountdir,
325 free_space,
326 units,
327 (show_used == 1) ? 100-free_space_pct : free_space_pct,
328 (show_used == 1) ? 100-inode_space_pct : inode_space_pct);
329 }
330 }
331 asprintf (&details, _("%s\n\
332%.0f of %.0f %s (%.0f%% inode=%.0f%%) free on %s (type %s mounted on %s) warn:%lu crit:%lu warn%%:%.0f%% crit%%:%.0f%%"),
333 details, free_space, total_space, units, free_space_pct, inode_space_pct,
334 me->me_devname, me->me_type, me->me_mountdir,
335 (unsigned long)w_df, (unsigned long)c_df, w_dfp, c_dfp);
336
337 }
338
339 }
340
341 if (verbose > 2)
342 asprintf (&output, "%s%s", output, details);
343
344 /* Override result if paths specified and not found */
345 temp_list = path_select_list;
346 while (temp_list) {
347 if (!temp_list->found) {
348 asprintf (&output, _("%s [%s not found]"), output, temp_list->name);
349 result = STATE_CRITICAL;
350 }
351 temp_list = temp_list->name_next;
352 }
353 if (show_html == 1)
354 printf ("<pre>DISK %s%s|%s\n", state_text (result), output, perf);
355 else
356 printf ("DISK %s%s|%s\n", state_text (result), output, perf);
357 return result;
358}
359
360
361
362/* process command-line arguments */
363int
364process_arguments (int argc, char **argv)
365{
366 int c;
367 struct name_list *se;
368 struct name_list **pathtail = &path_select_list;
369 struct name_list **fstail = &fs_exclude_list;
370 struct name_list **dptail = &dp_exclude_list;
371 struct name_list *temp_list;
372 int result = OK;
373 struct stat *stat_buf;
374
375 unsigned long l;
376
377 int option = 0;
378 static struct option longopts[] = {
379 {"timeout", required_argument, 0, 't'},
380 {"warning", required_argument, 0, 'w'},
381 {"critical", required_argument, 0, 'c'},
382 {"iwarning", required_argument, 0, 'W'},
383 /* Dang, -C is taken. We might want to reshuffle this. */
384 {"icritical", required_argument, 0, 'K'},
385 {"local", required_argument, 0, 'l'},
386 {"kilobytes", required_argument, 0, 'k'},
387 {"megabytes", required_argument, 0, 'm'},
388 {"units", required_argument, 0, 'u'},
389 {"all", no_argument, 0, 'a'},
390 {"path", required_argument, 0, 'p'},
391 {"partition", required_argument, 0, 'p'},
392 {"exclude_device", required_argument, 0, 'x'},
393 {"exclude_path", required_argument, 0, 's'},
394 {"exclude-type", required_argument, 0, 'X'},
395 {"mountpoint", no_argument, 0, 'M'},
396 {"errors-only", no_argument, 0, 'e'},
397 {"verbose", no_argument, 0, 'v'},
398 {"quiet", no_argument, 0, 'q'},
399 {"clear", no_argument, 0, 'C'},
400 {"version", no_argument, 0, 'V'},
401 {"help", no_argument, 0, 'h'},
402 {"html", no_argument, 0, 'H'},
403 {"used", no_argument, 0, 'U'},
404 {0, 0, 0, 0}
405 };
406
407 if (argc < 2)
408 return ERROR;
409
410 se = (struct name_list *) malloc (sizeof (struct name_list));
411 se->name = strdup ("iso9660");
412 se->name_next = NULL;
413 se->found = 0;
414 se->foundexact = 0;
415 se->exclude = 0;
416 se->found_len = 0;
417 *fstail = se;
418 fstail = &se->name_next;
419 for (c = 1; c < argc; c++)
420 if (strcmp ("-to", argv[c]) == 0)
421 strcpy (argv[c], "-t");
422
423 while (1) {
424 c = getopt_long (argc, argv, "+?VqhHiUveCat:c:w:K:W:u:p:x:s:X:mklM", longopts, &option);
425
426 if (c == -1 || c == EOF)
427 break;
428
429 switch (c) {
430 case 't': /* timeout period */
431 if (is_integer (optarg)) {
432 timeout_interval = atoi (optarg);
433 break;
434 }
435 else {
436 usage2 (_("Timeout interval must be a positive integer"), optarg);
437 }
438 case 'w': /* warning threshold */
439 if (is_intnonneg (optarg)) {
440 w_df = atoi (optarg);
441 break;
442 }
443 else if (strpbrk (optarg, ",:") &&
444 strstr (optarg, "%") &&
445 sscanf (optarg, "%lu%*[:,]%lf%%", &l, &w_dfp) == 2) {
446 w_df = (uintmax_t)l;
447 break;
448 }
449 else if (strstr (optarg, "%") && sscanf (optarg, "%lf%%", &w_dfp) == 1) {
450 break;
451 }
452 else {
453 usage4 (_("Warning threshold must be integer or percentage!"));
454 }
455 case 'c': /* critical threshold */
456 if (is_intnonneg (optarg)) {
457 c_df = atoi (optarg);
458 break;
459 }
460 else if (strpbrk (optarg, ",:") &&
461 strstr (optarg, "%") &&
462 sscanf (optarg, "%lu%*[,:]%lf%%", &l, &c_dfp) == 2) {
463 c_df = (uintmax_t)l;
464 break;
465 }
466 else if (strstr (optarg, "%") && sscanf (optarg, "%lf%%", &c_dfp) == 1) {
467 break;
468 }
469 else {
470 usage4 (_("Critical threshold must be integer or percentage!"));
471 }
472
473
474 case 'W': /* warning inode threshold */
475 if (strstr (optarg, "%") && sscanf (optarg, "%lf%%", &w_idfp) == 1) {
476 break;
477 }
478 else {
479 usage (_("Warning inode threshold must be percentage!\n"));
480 }
481 case 'K': /* kritical inode threshold */
482 if (strstr (optarg, "%") && sscanf (optarg, "%lf%%", &c_idfp) == 1) {
483 break;
484 }
485 else {
486 usage (_("Critical inode threshold must be percentage!\n"));
487 }
488 case 'u':
489 if (units)
490 free(units);
491 if (! strcmp (optarg, "bytes")) {
492 mult = (uintmax_t)1;
493 units = strdup ("B");
494 } else if (! strcmp (optarg, "kB")) {
495 mult = (uintmax_t)1024;
496 units = strdup ("kB");
497 } else if (! strcmp (optarg, "MB")) {
498 mult = (uintmax_t)1024 * 1024;
499 units = strdup ("MB");
500 } else if (! strcmp (optarg, "GB")) {
501 mult = (uintmax_t)1024 * 1024 * 1024;
502 units = strdup ("GB");
503 } else if (! strcmp (optarg, "TB")) {
504 mult = (uintmax_t)1024 * 1024 * 1024 * 1024;
505 units = strdup ("TB");
506 } else {
507 die (STATE_UNKNOWN, _("unit type %s not known\n"), optarg);
508 }
509 if (units == NULL)
510 die (STATE_UNKNOWN, _("failed allocating storage for '%s'\n"), "units");
511 break;
512 case 'k': /* display mountpoint */
513 mult = 1024;
514 if (units)
515 free(units);
516 units = strdup ("kB");
517 break;
518 case 'm': /* display mountpoint */
519 mult = 1024 * 1024;
520 if (units)
521 free(units);
522 units = strdup ("MB");
523 break;
524 case 'l':
525 show_local_fs = 1;
526 break;
527 case 'a': /* Choose all paths */
528 /* Remember the values passed in for all paths */
529 path_select_exclude_others=0;
530 dw_df = w_df;
531 dc_df = c_df;
532 dw_dfp = w_dfp;
533 dc_dfp = c_dfp;
534 dw_idfp = w_idfp;
535 dc_idfp = c_idfp;
536 break;
537 case 'p': /* select path */
538 se = (struct name_list *) malloc (sizeof (struct name_list));
539 se->name = optarg;
540 se->name_next = NULL;
541 se->w_df = w_df;
542 se->c_df = c_df;
543 se->w_dfp = w_dfp;
544 se->c_dfp = c_dfp;
545 se->w_idfp = w_idfp;
546 se->c_idfp = c_idfp;
547 se->found = 0;
548 se->foundexact = 0;
549 se->found_len = 0;
550 se->exclude = 0;
551 *pathtail = se;
552 pathtail = &se->name_next;
553 break;
554 case 'x': /* exclude path or partition */
555 se = (struct name_list *) malloc (sizeof (struct name_list));
556 se->name = optarg;
557 se->name_next = NULL;
558
559 /* If you don't clear the w_fd etc values here, they
560 * get processed when you walk the list and assigned
561 * to the global w_df!
562 */
563 se->w_df = 0;
564 se->c_df = 0;
565 se->w_dfp = 0;
566 se->c_dfp = 0;
567 se->w_idfp = 0;
568 se->c_idfp = 0;
569 se->found = 0;
570 se->foundexact = 0;
571 se->found_len = 0;
572 se->exclude = 1;
573 *dptail = se;
574 dptail = &se->name_next;
575 break;
576 case 's': /* exclude path or partition */
577 se = (struct name_list *) malloc (sizeof (struct name_list));
578 se->name = optarg;
579 se->name_next = NULL;
580
581 /* If you don't clear the w_fd etc values here, they
582 * get processed when you walk the list and assigned
583 * to the global w_df!
584 */
585 se->w_df = 0;
586 se->c_df = 0;
587 se->w_dfp = 0;
588 se->c_dfp = 0;
589 se->w_idfp = 0;
590 se->c_idfp = 0;
591 se->found = 0;
592 se->foundexact = 0;
593 se->found_len = 0;
594 se->exclude = 2;
595 *dptail = se;
596 dptail = &se->name_next;
597 break;
598 case 'X': /* exclude file system type */
599 se = (struct name_list *) malloc (sizeof (struct name_list));
600 se->name = optarg;
601 se->name_next = NULL;
602 /* If you don't clear the w_fd etc values here, they
603 * get processed when you walk the list and assigned
604 * to the global w_df!
605 */
606 se->w_df = 0;
607 se->c_df = 0;
608 se->w_dfp = 0;
609 se->c_dfp = 0;
610 se->w_idfp = 0;
611 se->c_idfp = 0;
612 se->found = 0;
613 se->foundexact = 0;
614 se->found_len = 0;
615 *fstail = se;
616 fstail = &se->name_next;
617 break;
618 case 'v': /* verbose */
619 verbose++;
620 break;
621 case 'q': /* verbose */
622 verbose--;
623 break;
624 case 'e':
625 erronly = TRUE;
626 break;
627 case 'M': /* display mountpoint */
628 display_mntp = TRUE;
629 break;
630 case 'C':
631 w_df = 0;
632 c_df = 0;
633 w_dfp = -1.0;
634 c_dfp = -1.0;
635 w_idfp = -1.0;
636 c_idfp = -1.0;
637 break;
638 case 'H': /* HTML formatted output */
639 show_html = 1;
640 break;
641 case 'U':
642 show_used = 1;
643 break;
644 case 'V': /* version */
645 print_revision (progname, revision);
646 exit (STATE_OK);
647 case 'h': /* help */
648 print_help ();
649 exit (STATE_OK);
650 case '?': /* help */
651 usage (_("Unknown argument"));
652 }
653 }
654
655 /* Support for "check_disk warn crit [fs]" with thresholds at used level */
656 c = optind;
657 if (w_dfp < 0 && argc > c && is_intnonneg (argv[c]))
658 w_dfp = (100.0 - atof (argv[c++]));
659
660 if (c_dfp < 0 && argc > c && is_intnonneg (argv[c]))
661 c_dfp = (100.0 - atof (argv[c++]));
662
663 if (argc > c && path == NULL) {
664 se = (struct name_list *) malloc (sizeof (struct name_list));
665 se->name = strdup (argv[c++]);
666 se->name_next = NULL;
667 se->w_df = w_df;
668 se->c_df = c_df;
669 se->w_dfp = w_dfp;
670 se->c_dfp = c_dfp;
671 se->w_idfp = w_idfp;
672 se->c_idfp = c_idfp;
673 se->found =0;
674 se->foundexact = 0;
675 se->found_len = 0;
676 se->exclude = 0;
677 *pathtail = se;
678 }
679
680 /* Remember the default values */
681 w_df = 0;
682 c_df = 0;
683 w_dfp = -1.0;
684 c_dfp = -1.0;
685 w_idfp = -1.0;
686 c_idfp = -1.0;
687
688 if (path_select_list) {
689 temp_list = path_select_list;
690 stat_buf = malloc(sizeof *stat_buf);
691 while (temp_list) {
692 /* Stat each entry to check that dir exists */
693 if (stat (temp_list->name, &stat_buf[0])) {
694 printf("DISK %s - ", _("CRITICAL"));
695 die (STATE_CRITICAL, _("%s does not exist\n"), temp_list->name);
696 }
697 if (validate_arguments (temp_list->w_df,
698 temp_list->c_df,
699 temp_list->w_dfp,
700 temp_list->c_dfp,
701 temp_list->w_idfp,
702 temp_list->c_idfp,
703 temp_list->name) == ERROR)
704 result = ERROR;
705 temp_list = temp_list->name_next;
706 }
707 free(stat_buf);
708 return result;
709 } else {
710 return validate_arguments (w_df, c_df, w_dfp, c_dfp, w_idfp, c_idfp, NULL);
711 }
712}
713
714
715
716void
717print_path (const char *mypath)
718{
719 if (mypath == NULL)
720 printf ("\n");
721 else
722 printf (_(" for %s\n"), mypath);
723
724 return;
725}
726
727
728
729int
730validate_arguments (uintmax_t w, uintmax_t c, double wp, double cp, double iwp, double icp, char *mypath)
731{
732 if (w < 0 && c < 0 && wp < 0.0 && cp < 0.0) {
733 printf (_("INPUT ERROR: No thresholds specified"));
734 print_path (mypath);
735 return ERROR;
736 }
737 else if ((wp >= 0.0 || cp >= 0.0) &&
738 (wp < 0.0 || cp < 0.0 || wp > 100.0 || cp > 100.0 || cp > wp)) {
739 printf (_("\
740INPUT ERROR: C_DFP (%f) should be less than W_DFP (%.1f) and both should be between zero and 100 percent, inclusive"),
741 cp, wp);
742 print_path (mypath);
743 return ERROR;
744 }
745 else if ((iwp >= 0.0 || icp >= 0.0) &&
746 (iwp < 0.0 || icp < 0.0 || iwp > 100.0 || icp > 100.0 || icp > iwp)) {
747 printf (_("\
748INPUT ERROR: C_IDFP (%f) should be less than W_IDFP (%.1f) and both should be between zero and 100 percent, inclusive"),
749 icp, iwp);
750 print_path (mypath);
751 return ERROR;
752 }
753 else if ((w > 0 || c > 0) && (w == 0 || c == 0 || c > w)) {
754 printf (_("\
755INPUT ERROR: C_DF (%lu) should be less than W_DF (%lu) and both should be greater than zero"),
756 (unsigned long)c, (unsigned long)w);
757 print_path (mypath);
758 return ERROR;
759 }
760
761 if (units == NULL) {
762 units = strdup ("MB");
763 mult = (uintmax_t)1024 * 1024;
764 }
765 return OK;
766}
767
768
769
770int
771
772check_disk (double usp, uintmax_t free_disk, double uisp)
773{
774 int result = STATE_UNKNOWN;
775 /* check the percent used space against thresholds */
776 if (usp >= 0.0 && c_dfp >=0.0 && usp >= (100.0 - c_dfp))
777 result = STATE_CRITICAL;
778 else if (uisp >= 0.0 && c_idfp >=0.0 && uisp >= (100.0 - c_idfp))
779 result = STATE_CRITICAL;
780 else if (c_df > 0 && free_disk <= c_df)
781 result = STATE_CRITICAL;
782 else if (usp >= 0.0 && w_dfp >=0.0 && usp >= (100.0 - w_dfp))
783 result = STATE_WARNING;
784 else if (uisp >= 0.0 && w_idfp >=0.0 && uisp >= (100.0 - w_idfp))
785 result = STATE_WARNING;
786 else if (w_df > 0 && free_disk <= w_df)
787 result = STATE_WARNING;
788 else if (usp >= 0.0)
789 result = STATE_OK;
790 return result;
791}
792
793
794
795int
796walk_name_list (struct name_list *list, const char *name)
797{
798 int foundexact = FALSE, foundmatch = FALSE;
799 int name_len;
800 name_len = strlen(name);
801 while (list) {
802 int list_name_len;
803 list_name_len = strlen(list->name);
804 if ((list->exclude == 1 && name_len == list_name_len && strncmp(list->name, name, list_name_len-1) == 0) ||
805 (list->foundexact == 0 && list->exclude == 0 && name_len < list_name_len && strncmp(list->name, name, name_len-1) == 0) ||
806 (list->exclude == 0 && name_len == list_name_len && strncmp(list->name, name, name_len-1) == 0) ||
807 (list->exclude == 2 && name_len >= list_name_len && strncmp(list->name, name, list_name_len-1) == 0)) {
808 /* Set to -1 for now to note it was a potential match. If an EXACT match is found later,
809 then reset this found to 0. If not, set it to 1. */
810 list->found = -1;
811 list->found_len = name_len;
812 /* Grab the longest string length that is not being excluded in order to format HTML properly */
813 if (name_len > longest_length && list->exclude == 0) {longest_length = name_len;}
814 /* if required for name_lists that have not saved w_df, etc (eg exclude lists) */
815 if (list->w_df) w_df = list->w_df;
816 if (list->c_df) c_df = list->c_df;
817 if (list->w_dfp>=0.0) w_dfp = list->w_dfp;
818 if (list->c_dfp>=0.0) c_dfp = list->c_dfp;
819 if (name_len == list_name_len) {
820 foundexact=TRUE;
821 list->foundexact = TRUE;
822 list->found = 1;
823 }
824 foundmatch = TRUE;
825 }
826 list = list->name_next;
827 }
828 /* Traverse the list again to reset the found variable properly */
829 while (list) {
830 if (list->found == -1 && foundexact == TRUE) list->found = 0;
831 if (list->found == -1 && foundexact == FALSE) list->found =1;
832 list = list->name_next;
833 printf("tried ");
834 }
835 return foundmatch;
836}
837
838
839
840void
841print_help (void)
842{
843 print_revision (progname, revision);
844
845 printf ("Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>\n");
846 printf (COPYRIGHT, copyright, email);
847
848 printf (_("This plugin checks the amount of used disk space on a mounted file system"));
849 printf (_("and generates an alert if free space is less than one of the threshold values"));
850
851 printf ("\n\n");
852
853 print_usage ();
854
855 printf (_(UT_HELP_VRSN));
856
857 printf (" %s\n", "-w, --warning=INTEGER");
858 printf (" %s\n", _("Exit with WARNING status if less than INTEGER units of disk are free"));
859 printf (" %s\n", "-w, --warning=PERCENT%");
860 printf (" %s\n", _("Exit with WARNING status if less than PERCENT of disk space is free"));
861 printf (" %s\n", "-W, --iwarning=PERCENT%");
862 printf (" %s\n", _("Exit with WARNING status if less than PERCENT of inode space is free"));
863 printf (" %s\n", "-K, --icritical=PERCENT%");
864 printf (" %s\n", _("Exit with CRITICAL status if less than PERCENT of inode space is free"));
865 printf (" %s\n", "-c, --critical=INTEGER");
866 printf (" %s\n", _("Exit with CRITICAL status if less than INTEGER units of disk are free"));
867 printf (" %s\n", "-c, --critical=PERCENT%");
868 printf (" %s\n", _("Exit with CRITCAL status if less than PERCENT of disk space is free"));
869 printf (" %s\n", "-C, --clear");
870 printf (" %s\n", _("Clear thresholds"));
871 printf (" %s\n", "-u, --units=STRING");
872 printf (" %s\n", _("Choose bytes, kB, MB, GB, TB (default: MB)"));
873 printf (" %s\n", "-k, --kilobytes");
874 printf (" %s\n", _("Same as '--units kB'"));
875 printf (" %s\n", "-m, --megabytes");
876 printf (" %s\n", _("Same as '--units MB'"));
877 printf (" %s\n", "-l, --local");
878 printf (" %s\n", _("Only check local filesystems"));
879 printf (" %s\n", "-p, --path=PATH, --partition=PARTITION");
880 printf (" %s\n", _("Path or partition (may be repeated)"));
881 printf (" %s\n", "-x, --exclude_device=PATH <STRING>");
882 printf (" %s\n", _("Ignore device (only works if -p unspecified)"));
883 printf (" %s\n", "-s, --exclude_path=PATH <STRING>");
884 printf (" %s\n", _("Ignore device (only works if -p unspecified)"));
885 printf (" %s\n", _("-X, --exclude-type=TYPE <STRING>"));
886 printf (" %s\n", _("Ignore all filesystems of indicated type (may be repeated)"));
887 printf (" %s\n", "-m, --mountpoint");
888 printf (" %s\n", _("Display the mountpoint instead of the partition"));
889 printf (" %s\n", "-e, --errors-only");
890 printf (" %s\n", _("Display only devices/mountpoints with errors"));
891 printf (" %s\n", "-H, --html");
892 printf (" %s\n", _("Output in HTML format"));
893 printf (" %s\n", "-U, --used");
894 printf (" %s\n", _("Output percentage of space/inodes used rather than free"));
895 printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
896 printf (_(UT_VERBOSE));
897 printf ("\n");
898 printf ("%s\n", _("Examples:"));
899 printf (" %s\n", "check_disk -w 10% -c 5% -p /tmp -p /var -C -w 100000 -c 50000 -p /");
900 printf (" %s\n", _("Checks /tmp and /var at 10% and 5%, and / at 100MB and 50MB"));
901 printf (" %s\n", "check_disk -w 10% -c 5% -a -C -w 5% -c 3% -p /");
902 printf (" %s\n", _("Checks / at 5% and 3% and every other mount at 10% and 5%"));
903 printf (_(UT_SUPPORT));
904}
905
906
907
908void
909print_usage (void)
910{
911 printf (_("Usage:"));
912 printf (" %s -w limit -c limit [-a | -p path | -x device | -s path] [-t timeout]", progname);
913 printf ("[-m] [-e] [-W limit] [-K limit] [-H] [-U] [-v] [-q]\n");
914}