1 /******************************************************************************
2 *
3 * Program: SNMP plugin for Nagios
4 * License: GPL
5 *
6 * License Information:
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 *
22 *./plugins/check_snmp 127.0.0.1 -c public -o .1.3.6.1.4.1.2021.9.1.2.1
23 *
24 *****************************************************************************/
26 const char *progname = "check_snmp";
27 #define REVISION "$Revision$"
28 #define COPYRIGHT "1999-2002"
29 #define AUTHOR "Ethan Galstad"
30 #define EMAIL "nagios@nagios.org"
31 #define SUMMARY "Check status of remote machines using SNMP.\n"
33 #define OPTIONS "\
34 -H <ip_address> -o <OID> [-w warn_range] [-c crit_range] \n\
35 [-C community] [-s string] [-r regex] [-R regexi] [-t timeout]\n\
36 [-l label] [-u units] [-p port-number] [-d delimiter]\n\
37 [-D output-delimiter] [-m miblist] [-P snmp version]\n\
38 [-L seclevel] [-U secname] [-a authproto] [-A authpasswd]\n\
39 [-X privpasswd]\n"
41 #define LONGOPTIONS "\
42 -H, --hostname=HOST\n\
43 Name or IP address of the device you wish to query\n\
44 -o, --oid=OID(s)\n\
45 Object identifier(s) whose value you wish to query\n\
46 -w, --warning=INTEGER_RANGE(s)\n\
47 Range(s) which will not result in a WARNING status\n\
48 -c, --critical=INTEGER_RANGE(s)\n\
49 Range(s) which will not result in a CRITICAL status\n\
50 -C, --community=STRING\n\
51 Optional community string for SNMP communication\n\
52 (default is \"%s\")\n\
53 -u, --units=STRING\n\
54 Units label(s) for output data (e.g., 'sec.').\n\
55 -p, --port=STRING\n\
56 UDP port number target is listening on. Default is \"%s\"\n\
57 -P, --protocol=[1|3]\n\
58 SNMP protocol version\n\
59 -L, --seclevel=[noAuthNoPriv|authNoPriv|authPriv]\n\
60 SNMPv3 securityLevel\n\
61 -U, --secname=USERNAME\n\
62 SNMPv3 username\n\
63 -a, --authproto=[MD5|SHA]\n\
64 SNMPv3 auth proto\n\
65 -A, --authpassword=PASSWORD\n\
66 SNMPv3 authentication password\n\
67 -X, --privpasswd=PASSWORD\n\
68 SNMPv3 crypt passwd (DES)\n\
69 -d, --delimiter=STRING\n\
70 Delimiter to use when parsing returned data. Default is \"%s\"\n\
71 Any data on the right hand side of the delimiter is considered\n\
72 to be the data that should be used in the evaluation.\n\
73 -t, --timeout=INTEGER\n\
74 Seconds to wait before plugin times out (see also nagios server timeout).\n\
75 Default is %d seconds\n\
76 -D, --output-delimiter=STRING\n\
77 Separates output on multiple OID requests\n\
78 -s, --string=STRING\n\
79 Return OK state (for that OID) if STRING is an exact match\n\
80 -r, --ereg=REGEX\n\
81 Return OK state (for that OID) if extended regular expression REGEX matches\n\
82 -R, --eregi=REGEX\n\
83 Return OK state (for that OID) if case-insensitive extended REGEX matches\n\
84 -l, --label=STRING\n\
85 Prefix label for output from plugin (default -s 'SNMP')\n\
86 -v, --verbose\n\
87 Debugging the output\n\
88 -m, --miblist=STRING\n\
89 List of MIBS to be loaded (default = ALL)\n"
91 #define NOTES "\
92 - This plugin uses the 'snmpget' command included with the NET-SNMP package.\n\
93 If you don't have the package installed, you will need to download it from\n\
94 http://net-snmp.sourceforge.net before you can use this plugin.\n\
95 - Multiple OIDs may be indicated by a comma- or space-delimited list (lists with\n\
96 internal spaces must be quoted) [max 8 OIDs]\n\
97 - Ranges are inclusive and are indicated with colons. When specified as\n\
98 'min:max' a STATE_OK will be returned if the result is within the indicated\n\
99 range or is equal to the upper or lower bound. A non-OK state will be\n\
100 returned if the result is outside the specified range.\n\
101 - If specified in the order 'max:min' a non-OK state will be returned if the\n\
102 result is within the (inclusive) range.\n\
103 - Upper or lower bounds may be omitted to skip checking the respective limit.\n\
104 - Bare integers are interpreted as upper limits.\n\
105 - When checking multiple OIDs, separate ranges by commas like '-w 1:10,1:,:20'\n\
106 - Note that only one string and one regex may be checked at present\n\
107 - All evaluation methods other than PR, STR, and SUBSTR expect that the value\n\
108 returned from the SNMP query is an unsigned integer.\n"
110 #define DESCRIPTION "\
111 This plugin gets system information on a remote server via snmp.\n"
113 #define DEFAULT_COMMUNITY "public"
114 #define DEFAULT_PORT "161"
115 #define DEFAULT_TIMEOUT 10
116 #define DEFAULT_MIBLIST "ALL"
117 #define DEFAULT_PROTOCOL "1"
118 #define DEFAULT_AUTH_PROTOCOL "MD5"
120 #include "common.h"
121 #include "utils.h"
122 #include "popen.h"
124 #define mark(a) ((a)!=0?"*":"")
126 #define CHECK_UNDEF 0
127 #define CRIT_PRESENT 1
128 #define CRIT_STRING 2
129 #define CRIT_REGEX 4
130 #define CRIT_GT 8
131 #define CRIT_LT 16
132 #define CRIT_GE 32
133 #define CRIT_LE 64
134 #define CRIT_EQ 128
135 #define CRIT_NE 256
136 #define CRIT_RANGE 512
137 #define WARN_PRESENT 1024
138 #define WARN_STRING 2048
139 #define WARN_REGEX 4096
140 #define WARN_GT 8192
141 #define WARN_LT 16384
142 #define WARN_GE 32768
143 #define WARN_LE 65536
144 #define WARN_EQ 131072
145 #define WARN_NE 262144
146 #define WARN_RANGE 524288
148 #define MAX_OIDS 8
149 #define MAX_DELIM_LENGTH 8
150 #define DEFAULT_DELIMITER "="
151 #define DEFAULT_OUTPUT_DELIMITER " "
153 void print_usage (void);
154 void print_help (void);
155 int process_arguments (int, char **);
156 int validate_arguments (void);
157 int check_num (int);
158 char *clarify_message (char *);
159 int lu_getll (unsigned long *, char *);
160 int lu_getul (unsigned long *, char *);
161 char *thisarg (char *str);
162 char *nextarg (char *str);
164 #ifdef HAVE_REGEX_H
165 #include <regex.h>
166 char regex_expect[MAX_INPUT_BUFFER] = "";
167 regex_t preg;
168 regmatch_t pmatch[10];
169 char timestamp[10] = "";
170 char regex[MAX_INPUT_BUFFER];
171 char errbuf[MAX_INPUT_BUFFER];
172 int cflags = REG_EXTENDED | REG_NOSUB | REG_NEWLINE;
173 int eflags = 0;
174 int errcode, excode;
175 #endif
177 char *server_address = NULL;
178 char *community = DEFAULT_COMMUNITY;
179 char *authpriv = NULL;
180 char *proto = NULL;
181 char *seclevel = NULL;
182 char *secname = NULL;
183 char *authproto = NULL;
184 char *authpasswd = NULL;
185 char *privpasswd = NULL;
186 char *oid = "";
187 char *label = "SNMP";
188 char *units = "";
189 char *port = DEFAULT_PORT;
190 char string_value[MAX_INPUT_BUFFER] = "";
191 char **labels = NULL;
192 char **unitv = NULL;
193 int nlabels = 0;
194 int labels_size = 8;
195 int nunits = 0;
196 int unitv_size = 8;
197 int verbose = FALSE;
198 unsigned long lower_warn_lim[MAX_OIDS];
199 unsigned long upper_warn_lim[MAX_OIDS];
200 unsigned long lower_crit_lim[MAX_OIDS];
201 unsigned long upper_crit_lim[MAX_OIDS];
202 unsigned long response_value[MAX_OIDS];
203 int check_warning_value = FALSE;
204 int check_critical_value = FALSE;
205 int eval_method[MAX_OIDS];
206 char *delimiter = DEFAULT_DELIMITER;
207 char *output_delim = DEFAULT_OUTPUT_DELIMITER;
208 char *miblist = DEFAULT_MIBLIST;
211 int
212 main (int argc, char **argv)
213 {
214 int i = 0;
215 int iresult = STATE_UNKNOWN;
216 int found = 0;
217 int result = STATE_DEPENDENT;
218 char input_buffer[MAX_INPUT_BUFFER];
219 char *command_line = NULL;
220 char *response = NULL;
221 char *outbuff = "";
222 char *output = "";
223 char *ptr = NULL;
224 char *p2 = NULL;
225 char *show = NULL;
227 labels = malloc (labels_size);
228 unitv = malloc (unitv_size);
229 for (i = 0; i < MAX_OIDS; i++)
230 eval_method[i] = CHECK_UNDEF;
231 i = 0;
233 if (process_arguments (argc, argv) == ERROR)
234 usage ("Incorrect arguments supplied\n");
236 /* create the command line to execute */
237 asprintf (&command_line, "%s -m %s -v %s %s %s:%s %s",
238 PATH_TO_SNMPGET, miblist, proto, authpriv, server_address, port, oid);
239 if (verbose)
240 printf ("%s\n", command_line);
242 /* run the command */
243 child_process = spopen (command_line);
244 if (child_process == NULL) {
245 printf ("Could not open pipe: %s\n", command_line);
246 exit (STATE_UNKNOWN);
247 }
249 child_stderr = fdopen (child_stderr_array[fileno (child_process)], "r");
250 if (child_stderr == NULL) {
251 printf ("Could not open stderr for %s\n", command_line);
252 }
254 while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process))
255 asprintf (&output, "%s%s", output, input_buffer);
257 if (verbose)
258 printf ("%s\n", output);
260 ptr = output;
262 while (ptr) {
264 ptr = strstr (ptr, delimiter);
265 if (ptr == NULL)
266 break;
268 ptr += strlen (delimiter);
269 ptr += strspn (ptr, " ");
271 found++;
273 if (ptr[0] == '"') {
274 ptr++;
275 response = strpcpy (response, ptr, "\"");
276 ptr = strpbrk (ptr, "\"");
277 ptr += strspn (ptr, "\"\n");
278 }
279 else {
280 response = strpcpy (response, ptr, "\n");
281 ptr = strpbrk (ptr, "\n");
282 ptr += strspn (ptr, "\n");
283 while
284 (strstr (ptr, delimiter) &&
285 strstr (ptr, "\n") && strstr (ptr, "\n") < strstr (ptr, delimiter)) {
286 response = strpcat (response, ptr, "\n");
287 ptr = strpbrk (ptr, "\n");
288 }
289 if (ptr && strstr (ptr, delimiter) == NULL) {
290 response = strscat (response, ptr);
291 ptr = NULL;
292 }
293 }
295 /* We strip out the datatype indicator for PHBs */
296 if (strstr (response, "Gauge: "))
297 show = strstr (response, "Gauge: ") + 7;
298 else if (strstr (response, "Gauge32: "))
299 show = strstr (response, "Gauge32: ") + 9;
300 else if (strstr (response, "Counter32: "))
301 show = strstr (response, "Counter32: ") + 11;
302 else if (strstr (response, "INTEGER: "))
303 show = strstr (response, "INTEGER: ") + 9;
304 else
305 show = response;
306 p2 = show;
308 iresult = STATE_DEPENDENT;
310 /* Process this block for integer comparisons */
311 if (eval_method[i] & CRIT_GT ||
312 eval_method[i] & CRIT_LT ||
313 eval_method[i] & CRIT_GE ||
314 eval_method[i] & CRIT_LE ||
315 eval_method[i] & CRIT_EQ ||
316 eval_method[i] & CRIT_NE ||
317 eval_method[i] & WARN_GT ||
318 eval_method[i] & WARN_LT ||
319 eval_method[i] & WARN_GE ||
320 eval_method[i] & WARN_LE ||
321 eval_method[i] & WARN_EQ ||
322 eval_method[i] & WARN_NE) {
323 p2 = strpbrk (p2, "0123456789");
324 if (p2 == NULL)
325 terminate (STATE_UNKNOWN,"No valid data returned");
326 response_value[i] = strtoul (p2, NULL, 10);
327 iresult = check_num (i);
328 asprintf (&show, "%lu", response_value[i]);
329 }
331 /* Process this block for string matching */
332 else if (eval_method[i] & CRIT_STRING) {
333 if (strcmp (response, string_value))
334 iresult = STATE_CRITICAL;
335 else
336 iresult = STATE_OK;
337 }
339 /* Process this block for regex matching */
340 else if (eval_method[i] & CRIT_REGEX) {
341 #ifdef HAVE_REGEX_H
342 excode = regexec (&preg, response, 10, pmatch, eflags);
343 if (excode == 0) {
344 iresult = STATE_OK;
345 }
346 else if (excode != REG_NOMATCH) {
347 regerror (excode, &preg, errbuf, MAX_INPUT_BUFFER);
348 printf ("Execute Error: %s\n", errbuf);
349 exit (STATE_CRITICAL);
350 }
351 else {
352 iresult = STATE_CRITICAL;
353 }
354 #else
355 printf ("%s UNKNOWN: call for regex which was not a compiled option", label);
356 exit (STATE_UNKNOWN);
357 #endif
358 }
360 /* Process this block for existence-nonexistence checks */
361 else {
362 if (eval_method[i] & CRIT_PRESENT)
363 iresult = STATE_CRITICAL;
364 else if (eval_method[i] & WARN_PRESENT)
365 iresult = STATE_WARNING;
366 else if (response && iresult == STATE_DEPENDENT)
367 iresult = STATE_OK;
368 }
370 /* Result is the worst outcome of all the OIDs tested */
371 result = max_state (result, iresult);
373 /* Prepend a label for this OID if there is one */
374 if (nlabels > 1 && i < nlabels && labels[i] != NULL)
375 asprintf (&outbuff, "%s%s%s %s%s%s", outbuff,
376 (i == 0) ? " " : output_delim,
377 labels[i], mark (iresult), show, mark (iresult));
378 else
379 asprintf (&outbuff, "%s%s%s%s%s", outbuff, (i == 0) ? " " : output_delim,
380 mark (iresult), show, mark (iresult));
382 /* Append a unit string for this OID if there is one */
383 if (nunits > 0 && i < nunits && unitv[i] != NULL)
384 asprintf (&outbuff, "%s %s", outbuff, unitv[i]);
386 i++;
388 } /* end while (ptr) */
390 if (found == 0)
391 terminate
392 (STATE_UNKNOWN,
393 "%s problem - No data recieved from host\nCMD: %s\n",
394 label, command_line);
396 /* WARNING if output found on stderr */
397 if (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr))
398 result = max_state (result, STATE_WARNING);
400 /* close stderr */
401 (void) fclose (child_stderr);
403 /* close the pipe */
404 if (spclose (child_process))
405 result = max_state (result, STATE_WARNING);
407 /* if (nunits == 1 || i == 1) */
408 /* printf ("%s %s -%s %s\n", label, state_text (result), outbuff, units); */
409 /* else */
410 printf ("%s %s -%s\n", label, state_text (result), outbuff);
412 return result;
413 }
415 /* process command-line arguments */
416 int
417 process_arguments (int argc, char **argv)
418 {
419 char *ptr;
420 int c = 1;
421 int j = 0, jj = 0, ii = 0;
423 #ifdef HAVE_GETOPT_H
424 int option_index = 0;
425 static struct option long_options[] = {
426 STD_LONG_OPTS,
427 {"community", required_argument, 0, 'C'},
428 {"oid", required_argument, 0, 'o'},
429 {"object", required_argument, 0, 'o'},
430 {"delimiter", required_argument, 0, 'd'},
431 {"output-delimiter", required_argument, 0, 'D'},
432 {"string", required_argument, 0, 's'},
433 {"regex", required_argument, 0, 'r'},
434 {"ereg", required_argument, 0, 'r'},
435 {"eregi", required_argument, 0, 'R'},
436 {"label", required_argument, 0, 'l'},
437 {"units", required_argument, 0, 'u'},
438 {"port", required_argument, 0, 'p'},
439 {"miblist", required_argument, 0, 'm'},
440 {"protocol", required_argument, 0, 'P'},
441 {"seclevel", required_argument, 0, 'L'},
442 {"secname", required_argument, 0, 'U'},
443 {"authproto", required_argument, 0, 'a'},
444 {"authpasswd", required_argument, 0, 'A'},
445 {"privpasswd", required_argument, 0, 'X'},
446 {0, 0, 0, 0}
447 };
448 #endif
450 if (argc < 2)
451 return ERROR;
453 /* reverse compatibility for very old non-POSIX usage forms */
454 for (c = 1; c < argc; c++) {
455 if (strcmp ("-to", argv[c]) == 0)
456 strcpy (argv[c], "-t");
457 if (strcmp ("-wv", argv[c]) == 0)
458 strcpy (argv[c], "-w");
459 if (strcmp ("-cv", argv[c]) == 0)
460 strcpy (argv[c], "-c");
461 }
463 while (1) {
464 #ifdef HAVE_GETOPT_H
465 c =
466 getopt_long (argc, argv, "hvVt:c:w:H:C:o:e:E:d:D:s:R:r:l:u:p:m:P:L:U:a:A:X:",
467 long_options, &option_index);
468 #else
469 c = getopt (argc, argv, "hvVt:c:w:H:C:o:e:E:d:D:s:R:r:l:u:p:m:P:L:U:a:A:X:");
470 #endif
472 if (c == -1 || c == EOF)
473 break;
475 switch (c) {
476 case '?': /* usage */
477 usage3 ("Unknown argument", optopt);
478 case 'h': /* help */
479 print_help ();
480 exit (STATE_OK);
481 case 'V': /* version */
482 print_revision (progname, REVISION);
483 exit (STATE_OK);
484 case 'v': /* verbose */
485 verbose = TRUE;
486 break;
488 /* Connection info */
489 case 'C': /* group or community */
490 community = strscpy (community, optarg);
491 break;
492 case 'H': /* Host or server */
493 server_address = strscpy (server_address, optarg);
494 break;
495 case 'p': /* TCP port number */
496 port = strscpy(port, optarg);
497 break;
498 case 'm': /* List of MIBS */
499 miblist = strscpy(miblist, optarg);
500 break;
501 case 'P': /* SNMP protocol version */
502 proto = strscpy(proto, optarg);
503 break;
504 case 'L': /* security level */
505 seclevel = strscpy(seclevel,optarg);
506 break;
507 case 'U': /* security username */
508 secname = strscpy(secname, optarg);
509 break;
510 case 'a': /* auth protocol */
511 asprintf (&authproto, optarg);
512 break;
513 case 'A': /* auth passwd */
514 authpasswd = strscpy(authpasswd, optarg);
515 break;
516 case 'X': /* priv passwd */
517 privpasswd = strscpy(privpasswd, optarg);
518 break;
519 case 't': /* timeout period */
520 if (!is_integer (optarg))
521 usage2 ("Timeout Interval must be an integer", optarg);
522 timeout_interval = atoi (optarg);
523 break;
525 /* Test parameters */
526 case 'c': /* critical time threshold */
527 if (strspn (optarg, "0123456789:,") < strlen (optarg)) {
528 printf ("Invalid critical threshold: %s\n", optarg);
529 print_usage ();
530 exit (STATE_UNKNOWN);
531 }
532 for (ptr = optarg; ptr && jj < MAX_OIDS; jj++) {
533 if (lu_getll (&lower_crit_lim[jj], ptr) == 1)
534 eval_method[jj] |= CRIT_LT;
535 if (lu_getul (&upper_crit_lim[jj], ptr) == 1)
536 eval_method[jj] |= CRIT_GT;
537 (ptr = index (ptr, ',')) ? ptr++ : ptr;
538 }
539 break;
540 case 'w': /* warning time threshold */
541 if (strspn (optarg, "0123456789:,") < strlen (optarg)) {
542 printf ("Invalid warning threshold: %s\n", optarg);
543 print_usage ();
544 exit (STATE_UNKNOWN);
545 }
546 for (ptr = optarg; ptr && ii < MAX_OIDS; ii++) {
547 if (lu_getll (&lower_warn_lim[ii], ptr) == 1)
548 eval_method[ii] |= WARN_LT;
549 if (lu_getul (&upper_warn_lim[ii], ptr) == 1)
550 eval_method[ii] |= WARN_GT;
551 (ptr = index (ptr, ',')) ? ptr++ : ptr;
552 }
553 break;
554 case 'o': /* object identifier */
555 case 'e': /* PRELIMINARY - may change */
556 case 'E': /* PRELIMINARY - may change */
557 for (ptr = optarg; (ptr = index (ptr, ',')); ptr++)
558 ptr[0] = ' '; /* relpace comma with space */
559 for (ptr = optarg; (ptr = index (ptr, ' ')); ptr++)
560 j++; /* count OIDs */
561 asprintf (&oid, "%s %s", (oid?oid:""), optarg);
562 if (c == 'E' || c == 'e') {
563 jj++;
564 ii++;
565 }
566 if (c == 'E')
567 eval_method[j+1] |= WARN_PRESENT;
568 else if (c == 'e')
569 eval_method[j+1] |= CRIT_PRESENT;
570 break;
571 case 's': /* string or substring */
572 strncpy (string_value, optarg, sizeof (string_value) - 1);
573 string_value[sizeof (string_value) - 1] = 0;
574 eval_method[jj++] = CRIT_STRING;
575 ii++;
576 break;
577 case 'R': /* regex */
578 #ifdef HAVE_REGEX_H
579 cflags = REG_ICASE;
580 #endif
581 case 'r': /* regex */
582 #ifdef HAVE_REGEX_H
583 cflags |= REG_EXTENDED | REG_NOSUB | REG_NEWLINE;
584 strncpy (regex_expect, optarg, sizeof (regex_expect) - 1);
585 regex_expect[sizeof (regex_expect) - 1] = 0;
586 errcode = regcomp (&preg, regex_expect, cflags);
587 if (errcode != 0) {
588 regerror (errcode, &preg, errbuf, MAX_INPUT_BUFFER);
589 printf ("Could Not Compile Regular Expression");
590 return ERROR;
591 }
592 eval_method[jj++] = CRIT_REGEX;
593 ii++;
594 #else
595 printf ("%s UNKNOWN: call for regex which was not a compiled option", label);
596 exit (STATE_UNKNOWN);
597 #endif
598 break;
600 /* Format */
601 case 'd': /* delimiter */
602 delimiter = strscpy (delimiter, optarg);
603 break;
604 case 'D': /* output-delimiter */
605 output_delim = strscpy (output_delim, optarg);
606 break;
607 case 'l': /* label */
608 label = optarg;
609 nlabels++;
610 if (nlabels >= labels_size) {
611 labels_size += 8;
612 labels = realloc (labels, labels_size);
613 if (labels == NULL)
614 terminate (STATE_UNKNOWN,
615 "Could not realloc() labels[%d]", nlabels);
616 }
617 labels[nlabels - 1] = optarg;
618 ptr = thisarg (optarg);
619 if (strstr (ptr, "'") == ptr)
620 labels[nlabels - 1] = ptr + 1;
621 else
622 labels[nlabels - 1] = ptr;
623 while (ptr && (ptr = nextarg (ptr))) {
624 if (nlabels >= labels_size) {
625 labels_size += 8;
626 labels = realloc (labels, labels_size);
627 if (labels == NULL)
628 terminate (STATE_UNKNOWN, "Could not realloc() labels\n");
629 }
630 labels++;
631 ptr = thisarg (ptr);
632 if (strstr (ptr, "'") == ptr)
633 labels[nlabels - 1] = ptr + 1;
634 else
635 labels[nlabels - 1] = ptr;
636 }
637 break;
638 case 'u': /* units */
639 units = optarg;
640 nunits++;
641 if (nunits >= unitv_size) {
642 unitv_size += 8;
643 unitv = realloc (unitv, unitv_size);
644 if (unitv == NULL)
645 terminate (STATE_UNKNOWN,
646 "Could not realloc() units [%d]\n", nunits);
647 }
648 unitv[nunits - 1] = optarg;
649 ptr = thisarg (optarg);
650 if (strstr (ptr, "'") == ptr)
651 unitv[nunits - 1] = ptr + 1;
652 else
653 unitv[nunits - 1] = ptr;
654 while (ptr && (ptr = nextarg (ptr))) {
655 if (nunits >= unitv_size) {
656 unitv_size += 8;
657 unitv = realloc (unitv, unitv_size);
658 if (units == NULL)
659 terminate (STATE_UNKNOWN, "Could not realloc() units\n");
660 }
661 nunits++;
662 ptr = thisarg (ptr);
663 if (strstr (ptr, "'") == ptr)
664 unitv[nunits - 1] = ptr + 1;
665 else
666 unitv[nunits - 1] = ptr;
667 }
668 break;
670 }
671 }
673 if (server_address == NULL)
674 asprintf (&server_address, argv[optind]);
676 return validate_arguments ();
677 }
679 /******************************************************************************
681 @@-
682 <sect3>
683 <title>validate_arguments</title>
685 <para>&PROTO_validate_arguments;</para>
687 <para>Given a database name, this function returns TRUE if the string
688 is a valid PostgreSQL database name, and returns false if it is
689 not.</para>
691 <para>Valid PostgreSQL database names are less than &NAMEDATALEN;
692 characters long and consist of letters, numbers, and underscores. The
693 first character cannot be a number, however.</para>
695 </sect3>
696 -@@
697 ******************************************************************************/
699 int
700 validate_arguments ()
701 {
703 /* Need better checks to verify seclevel and authproto choices */
705 if (seclevel == NULL)
706 asprintf (&seclevel, "noAuthNoPriv");
709 if (authproto == NULL )
710 asprintf(&authproto, DEFAULT_AUTH_PROTOCOL);
714 if (proto == NULL || (strcmp(proto,DEFAULT_PROTOCOL) == 0) ) { /* default protocol version */
715 asprintf(&proto, DEFAULT_PROTOCOL);
716 asprintf(&authpriv, "%s%s", "-c ", community);
717 }
718 else if ( strcmp (proto, "3") == 0 ) { /* snmpv3 args */
719 asprintf(&proto, "%s", "3");
721 if ( (strcmp(seclevel, "noAuthNoPriv") == 0) || seclevel == NULL ) {
722 asprintf(&authpriv, "%s", "-l noAuthNoPriv" );
723 }
724 else if ( strcmp(seclevel, "authNoPriv") == 0 ) {
725 if ( secname == NULL || authpasswd == NULL) {
726 printf ("Missing secname (%s) or authpassword (%s) ! \n",secname, authpasswd );
727 print_usage ();
728 exit (STATE_UNKNOWN);
729 }
730 asprintf(&authpriv, "-l authNoPriv -a %s -u %s -A %s ", authproto, secname, authpasswd);
731 }
732 else if ( strcmp(seclevel, "authPriv") == 0 ) {
733 if ( secname == NULL || authpasswd == NULL || privpasswd == NULL ) {
734 printf ("Missing secname (%s), authpassword (%s), or privpasswd (%s)! \n",secname, authpasswd,privpasswd );
735 print_usage ();
736 exit (STATE_UNKNOWN);
737 }
738 asprintf(&authpriv, "-l authPriv -a %s -u %s -A %s -x DES -X %s ", authproto, secname, authpasswd, privpasswd);
739 }
742 }
743 else {
744 printf ("Invalid SNMP version: %s\n", proto);
745 print_usage ();
746 exit (STATE_UNKNOWN);
747 }
752 return OK;
753 }
757 void
758 print_help (void)
759 {
760 print_revision (progname, REVISION);
761 printf
762 ("Copyright (c) %s %s <%s>\n\n%s\n", COPYRIGHT, AUTHOR, EMAIL, SUMMARY);
763 print_usage ();
764 printf
765 ("\nOptions:\n" LONGOPTIONS "\n" DESCRIPTION "\n" NOTES "\n",
766 DEFAULT_COMMUNITY, DEFAULT_PORT, DEFAULT_DELIMITER, DEFAULT_TIMEOUT);
767 support ();
768 }
770 void
771 print_usage (void)
772 {
773 printf
774 ("Usage:\n" " %s %s\n"
775 " %s (-h | --help) for detailed help\n"
776 " %s (-V | --version) for version information\n",
777 progname, OPTIONS, progname, progname);
778 }
779 \f
782 char *
783 clarify_message (char *msg)
784 {
785 int i = 0;
786 int foo;
787 char tmpmsg_c[MAX_INPUT_BUFFER];
788 char *tmpmsg = (char *) &tmpmsg_c;
789 tmpmsg = strcpy (tmpmsg, msg);
790 if (!strncmp (tmpmsg, " Hex:", 5)) {
791 tmpmsg = strtok (tmpmsg, ":");
792 while ((tmpmsg = strtok (NULL, " "))) {
793 foo = strtol (tmpmsg, NULL, 16);
794 /* Translate chars that are not the same value in the printers
795 * character set.
796 */
797 switch (foo) {
798 case 208:
799 {
800 foo = 197;
801 break;
802 }
803 case 216:
804 {
805 foo = 196;
806 break;
807 }
808 }
809 msg[i] = foo;
810 i++;
811 }
812 msg[i] = 0;
813 }
814 return (msg);
815 }
818 int
819 check_num (int i)
820 {
821 int result;
822 result = STATE_OK;
823 if (eval_method[i] & WARN_GT && eval_method[i] & WARN_LT &&
824 lower_warn_lim[i] > upper_warn_lim[i]) {
825 if (response_value[i] <= lower_warn_lim[i] &&
826 response_value[i] >= upper_warn_lim[i]) {
827 result = STATE_WARNING;
828 }
829 }
830 else if
831 ((eval_method[i] & WARN_GT && response_value[i] > upper_warn_lim[i]) ||
832 (eval_method[i] & WARN_GE && response_value[i] >= upper_warn_lim[i]) ||
833 (eval_method[i] & WARN_LT && response_value[i] < lower_warn_lim[i]) ||
834 (eval_method[i] & WARN_LE && response_value[i] <= lower_warn_lim[i]) ||
835 (eval_method[i] & WARN_EQ && response_value[i] == upper_warn_lim[i]) ||
836 (eval_method[i] & WARN_NE && response_value[i] != upper_warn_lim[i])) {
837 result = STATE_WARNING;
838 }
840 if (eval_method[i] & CRIT_GT && eval_method[i] & CRIT_LT &&
841 lower_warn_lim[i] > upper_warn_lim[i]) {
842 if (response_value[i] <= lower_crit_lim[i] &&
843 response_value[i] >= upper_crit_lim[i]) {
844 result = STATE_CRITICAL;
845 }
846 }
847 else if
848 ((eval_method[i] & CRIT_GT && response_value[i] > upper_crit_lim[i]) ||
849 (eval_method[i] & CRIT_GE && response_value[i] >= upper_crit_lim[i]) ||
850 (eval_method[i] & CRIT_LT && response_value[i] < lower_crit_lim[i]) ||
851 (eval_method[i] & CRIT_LE && response_value[i] <= lower_crit_lim[i]) ||
852 (eval_method[i] & CRIT_EQ && response_value[i] == upper_crit_lim[i]) ||
853 (eval_method[i] & CRIT_NE && response_value[i] != upper_crit_lim[i])) {
854 result = STATE_CRITICAL;
855 }
857 return result;
858 }
861 int
862 lu_getll (unsigned long *ll, char *str)
863 {
864 char tmp[100];
865 if (strchr (str, ':') == NULL)
866 return 0;
867 if (strchr (str, ',') != NULL && (strchr (str, ',') < strchr (str, ':')))
868 return 0;
869 if (sscanf (str, "%lu%[:]", ll, tmp) == 2)
870 return 1;
871 return 0;
872 }
874 int
875 lu_getul (unsigned long *ul, char *str)
876 {
877 char tmp[100];
878 if (sscanf (str, "%lu%[^,]", ul, tmp) == 1)
879 return 1;
880 if (sscanf (str, ":%lu%[^,]", ul, tmp) == 1)
881 return 1;
882 if (sscanf (str, "%*u:%lu%[^,]", ul, tmp) == 1)
883 return 1;
884 return 0;
885 }
892 /* trim leading whitespace
893 if there is a leading quote, make sure it balances */
895 char *
896 thisarg (char *str)
897 {
898 str += strspn (str, " \t\r\n"); /* trim any leading whitespace */
899 if (strstr (str, "'") == str) { /* handle SIMPLE quoted strings */
900 if (strlen (str) == 1 || !strstr (str + 1, "'"))
901 terminate (STATE_UNKNOWN, "Unbalanced quotes\n");
902 }
903 return str;
904 }
907 /* if there's a leading quote, advance to the trailing quote
908 set the trailing quote to '\x0'
909 if the string continues, advance beyond the comma */
911 char *
912 nextarg (char *str)
913 {
914 if (strstr (str, "'") == str) {
915 if (strlen (str) > 1) {
916 str = strstr (str + 1, "'");
917 str[0] = 0;
918 return (++str);
919 }
920 else {
921 str[0] = 0;
922 return NULL;
923 }
924 }
925 if (strstr (str, ",") == str) {
926 if (strlen (str) > 1) {
927 str[0] = 0;
928 return (++str);
929 }
930 else {
931 str[0] = 0;
932 return NULL;
933 }
934 }
935 if ((str = strstr (str, ",")) && strlen (str) > 1) {
936 str[0] = 0;
937 return (++str);
938 }
939 return NULL;
940 }