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 #define 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]"
39 #define LONGOPTIONS "\
40 -H, --hostname=HOST\n\
41 Name or IP address of the device you wish to query\n\
42 -o, --oid=OID(s)\n\
43 Object identifier(s) whose value you wish to query\n\
44 -w, --warning=INTEGER_RANGE(s)\n\
45 Range(s) which will not result in a WARNING status\n\
46 -c, --critical=INTEGER_RANGE(s)\n\
47 Range(s) which will not result in a CRITICAL status\n\
48 -C, --community=STRING\n\
49 Optional community string for SNMP communication\n\
50 (default is \"%s\")\n\
51 -u, --units=STRING\n\
52 Units label(s) for output data (e.g., 'sec.').\n\
53 -p, --port=STRING\n\
54 UDP port number target is listening on. Default is \"%s\"\n\
55 -P, --protocol=[1|3]\n\
56 SNMP protocol version\n\
57 -L, --seclevel=[noAuthNoPriv|authNoPriv|authPriv]\n\
58 SNMPv3 securityLevel\n\
59 -U, --secname=USERNAME\n\
60 SNMPv3 username\n\
61 -a, --authproto=[MD5|SHA]\n\
62 SNMPv3 auth proto\n\
63 -A, --authpassword=PASSWORD\n\
64 SNMPv3 authentication password\n\
65 -X, --privpasswd=PASSWORD\n\
66 SNMPv3 crypt passwd (DES)\n\
67 -d, --delimiter=STRING\n\
68 Delimiter to use when parsing returned data. Default is \"%s\"\n\
69 Any data on the right hand side of the delimiter is considered\n\
70 to be the data that should be used in the evaluation.\n\
71 -t, --timeout=INTEGER\n\
72 Seconds to wait before plugin times out (see also nagios server timeout).\n\
73 Default is %d seconds\n\
74 -D, --output-delimiter=STRING\n\
75 Separates output on multiple OID requests\n\
76 -s, --string=STRING\n\
77 Return OK state (for that OID) if STRING is an exact match\n\
78 -r, --ereg=REGEX\n\
79 Return OK state (for that OID) if extended regular expression REGEX matches\n\
80 -R, --eregi=REGEX\n\
81 Return OK state (for that OID) if case-insensitive extended REGEX matches\n\
82 -l, --label=STRING\n\
83 Prefix label for output from plugin (default -s 'SNMP')\n\
84 -v, --verbose\n\
85 Debugging the output\n\
86 -m, --miblist=STRING\n\
87 List of MIBS to be loaded (default = ALL)\n"
89 #define NOTES "\
90 - This plugin uses the 'snmpget' command included with the NET-SNMP package.\n\
91 If you don't have the package installed, you will need to download it from\n\
92 http://net-snmp.sourceforge.net before you can use this plugin.\n\
93 - Multiple OIDs may be indicated by a comma- or space-delimited list (lists with\n\
94 internal spaces must be quoted) [max 8 OIDs]\n\
95 - Ranges are inclusive and are indicated with colons. When specified as\n\
96 'min:max' a STATE_OK will be returned if the result is within the indicated\n\
97 range or is equal to the upper or lower bound. A non-OK state will be\n\
98 returned if the result is outside the specified range.\n\
99 - If specified in the order 'max:min' a non-OK state will be returned if the\n\
100 result is within the (inclusive) range.\n\
101 - Upper or lower bounds may be omitted to skip checking the respective limit.\n\
102 - Bare integers are interpreted as upper limits.\n\
103 - When checking multiple OIDs, separate ranges by commas like '-w 1:10,1:,:20'\n\
104 - Note that only one string and one regex may be checked at present\n\
105 - All evaluation methods other than PR, STR, and SUBSTR expect that the value\n\
106 returned from the SNMP query is an unsigned integer.\n"
108 #define DESCRIPTION "\
109 This plugin gets system information on a remote server via snmp.\n"
111 #define DEFAULT_COMMUNITY "public"
112 #define DEFAULT_PORT "161"
113 #define DEFAULT_TIMEOUT 10
114 #define DEFAULT_MIBLIST "ALL"
115 #define DEFAULT_PROTOCOL "1"
116 #define DEFAULT_AUTH_PROTOCOL "MD5"
118 #include "common.h"
119 #include "utils.h"
120 #include "popen.h"
122 #define mark(a) ((a)!=0?"*":"")
124 #define CHECK_UNDEF 0
125 #define CRIT_PRESENT 1
126 #define CRIT_STRING 2
127 #define CRIT_REGEX 4
128 #define CRIT_GT 8
129 #define CRIT_LT 16
130 #define CRIT_GE 32
131 #define CRIT_LE 64
132 #define CRIT_EQ 128
133 #define CRIT_NE 256
134 #define CRIT_RANGE 512
135 #define WARN_PRESENT 1024
136 #define WARN_STRING 2048
137 #define WARN_REGEX 4096
138 #define WARN_GT 8192
139 #define WARN_LT 16384
140 #define WARN_GE 32768
141 #define WARN_LE 65536
142 #define WARN_EQ 131072
143 #define WARN_NE 262144
144 #define WARN_RANGE 524288
146 #define MAX_OIDS 8
147 #define MAX_DELIM_LENGTH 8
148 #define DEFAULT_DELIMITER "="
149 #define DEFAULT_OUTPUT_DELIMITER " "
151 void print_usage (void);
152 void print_help (void);
153 int process_arguments (int, char **);
154 int validate_arguments (void);
155 int check_num (int);
156 char *clarify_message (char *);
157 int lu_getll (unsigned long *, char *);
158 int lu_getul (unsigned long *, char *);
159 char *thisarg (char *str);
160 char *nextarg (char *str);
162 #ifdef HAVE_REGEX_H
163 #include <regex.h>
164 char regex_expect[MAX_INPUT_BUFFER] = "";
165 regex_t preg;
166 regmatch_t pmatch[10];
167 char timestamp[10] = "";
168 char regex[MAX_INPUT_BUFFER];
169 char errbuf[MAX_INPUT_BUFFER];
170 int cflags = REG_EXTENDED | REG_NOSUB | REG_NEWLINE;
171 int eflags = 0;
172 int errcode, excode;
173 #endif
175 char *server_address = NULL;
176 char *community = NULL;
177 char *authpriv = NULL;
178 char *proto = NULL;
179 char *seclevel = NULL;
180 char *secname = NULL;
181 char *authproto = NULL;
182 char *authpasswd = NULL;
183 char *privpasswd = NULL;
184 char *oid = "";
185 char *label = NULL;
186 char *units = NULL;
187 char *port = DEFAULT_PORT;
188 char string_value[MAX_INPUT_BUFFER] = "";
189 char **labels = NULL;
190 char **unitv = NULL;
191 int nlabels = 0;
192 int labels_size = 8;
193 int nunits = 0;
194 int unitv_size = 8;
195 int verbose = FALSE;
196 unsigned long lower_warn_lim[MAX_OIDS];
197 unsigned long upper_warn_lim[MAX_OIDS];
198 unsigned long lower_crit_lim[MAX_OIDS];
199 unsigned long upper_crit_lim[MAX_OIDS];
200 unsigned long response_value[MAX_OIDS];
201 int check_warning_value = FALSE;
202 int check_critical_value = FALSE;
203 int eval_method[MAX_OIDS];
204 char *delimiter = NULL;
205 char *output_delim = NULL;
206 char *miblist = NULL;
209 int
210 main (int argc, char **argv)
211 {
212 int i = 0;
213 int iresult = STATE_UNKNOWN;
214 int found = 0;
215 int result = STATE_DEPENDENT;
216 char input_buffer[MAX_INPUT_BUFFER];
217 char *command_line = NULL;
218 char *response = NULL;
219 char *outbuff = "";
220 char *output = NULL;
221 char *ptr = NULL;
222 char *p2 = NULL;
223 char *show = NULL;
225 labels = malloc (labels_size);
226 unitv = malloc (unitv_size);
227 for (i = 0; i < MAX_OIDS; i++)
228 eval_method[i] = CHECK_UNDEF;
229 i = 0;
231 if (process_arguments (argc, argv) == ERROR)
232 usage ("Incorrect arguments supplied\n");
234 /* create the command line to execute */
235 asprintf (&command_line, "%s -m %s -v %s %s %s:%s %s",
236 PATH_TO_SNMPGET, miblist, proto, authpriv, server_address, port, oid);
237 if (verbose)
238 printf ("%s\n", command_line);
240 /* run the command */
241 child_process = spopen (command_line);
242 if (child_process == NULL) {
243 printf ("Could not open pipe: %s\n", command_line);
244 exit (STATE_UNKNOWN);
245 }
247 child_stderr = fdopen (child_stderr_array[fileno (child_process)], "r");
248 if (child_stderr == NULL) {
249 printf ("Could not open stderr for %s\n", command_line);
250 }
252 asprintf (&output, "");
253 while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process))
254 asprintf (&output, "%s%s", output, input_buffer);
256 if (verbose)
257 printf ("%s\n", output);
259 ptr = output;
261 while (ptr) {
263 ptr = strstr (ptr, delimiter);
264 if (ptr == NULL)
265 break;
267 ptr += strlen (delimiter);
268 ptr += strspn (ptr, " ");
270 found++;
272 if (ptr[0] == '"') {
273 ptr++;
274 response = strpcpy (response, ptr, "\"");
275 ptr = strpbrk (ptr, "\"");
276 ptr += strspn (ptr, "\"\n");
277 }
278 else {
279 response = strpcpy (response, ptr, "\n");
280 ptr = strpbrk (ptr, "\n");
281 ptr += strspn (ptr, "\n");
282 while
283 (strstr (ptr, delimiter) &&
284 strstr (ptr, "\n") && strstr (ptr, "\n") < strstr (ptr, delimiter)) {
285 response = strpcat (response, ptr, "\n");
286 ptr = strpbrk (ptr, "\n");
287 }
288 if (ptr && strstr (ptr, delimiter) == NULL) {
289 response = strscat (response, ptr);
290 ptr = NULL;
291 }
292 }
294 if (strstr (response, "Gauge: "))
295 show = strstr (response, "Gauge: ") + 7;
296 else if (strstr (response, "Gauge32: "))
297 show = strstr (response, "Gauge32: ") + 9;
298 else
299 show = response;
300 p2 = show;
302 iresult = STATE_DEPENDENT;
304 if (eval_method[i] & CRIT_PRESENT) {
305 iresult = STATE_CRITICAL;
306 } else if (eval_method[i] & WARN_PRESENT) {
307 iresult = STATE_WARNING;
308 }
310 if (eval_method[i] & CRIT_GT ||
311 eval_method[i] & CRIT_LT ||
312 eval_method[i] & CRIT_GE ||
313 eval_method[i] & CRIT_LE ||
314 eval_method[i] & CRIT_EQ ||
315 eval_method[i] & CRIT_NE ||
316 eval_method[i] & WARN_GT ||
317 eval_method[i] & WARN_LT ||
318 eval_method[i] & WARN_GE ||
319 eval_method[i] & WARN_LE ||
320 eval_method[i] & WARN_EQ || eval_method[i] & WARN_NE) {
321 p2 = strpbrk (p2, "0123456789");
322 response_value[i] = strtoul (p2, NULL, 10);
323 iresult = check_num (i);
324 asprintf (&show, "%lu", response_value[i]);
325 /*asprintf (&show, "%s", response); */
326 }
328 else if (eval_method[i] & CRIT_STRING) {
329 if (strcmp (response, string_value))
330 iresult = STATE_CRITICAL;
331 else
332 iresult = STATE_OK;
333 }
335 else if (eval_method[i] & CRIT_REGEX) {
336 #ifdef HAVE_REGEX_H
337 excode = regexec (&preg, response, 10, pmatch, eflags);
338 if (excode == 0) {
339 iresult = STATE_OK;
340 }
341 else if (excode != REG_NOMATCH) {
342 regerror (excode, &preg, errbuf, MAX_INPUT_BUFFER);
343 printf ("Execute Error: %s\n", errbuf);
344 exit (STATE_CRITICAL);
345 }
346 else {
347 iresult = STATE_CRITICAL;
348 }
349 #else
350 printf ("SNMP UNKNOWN: call for regex which was not a compiled option");
351 exit (STATE_UNKNOWN);
352 #endif
353 }
355 if (response && iresult == STATE_DEPENDENT)
356 iresult = STATE_OK;
357 else if (eval_method[i] & CRIT_PRESENT)
358 iresult = STATE_CRITICAL;
359 else
360 iresult = STATE_WARNING;
362 result = max_state (result, iresult);
364 if (nlabels > 1 && i < nlabels && labels[i] != NULL)
365 asprintf (&outbuff, "%s%s%s %s%s%s", outbuff,
366 (i == 0) ? " " : output_delim,
367 labels[i], mark (iresult), show, mark (iresult));
368 else
369 asprintf (&outbuff, "%s%s%s%s%s", outbuff, (i == 0) ? " " : output_delim,
370 mark (iresult), show, mark (iresult));
372 if (nunits > 0 && i < nunits)
373 asprintf (&outbuff, "%s %s", outbuff, unitv[i]);
375 i++;
377 } /* end while */
379 if (found == 0)
380 terminate
381 (STATE_UNKNOWN,
382 "%s problem - No data recieved from host\nCMD: %s\n",
383 label, command_line);
385 /* WARNING if output found on stderr */
386 if (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr))
387 result = max_state (result, STATE_WARNING);
389 /* close stderr */
390 (void) fclose (child_stderr);
392 /* close the pipe */
393 if (spclose (child_process))
394 result = max_state (result, STATE_WARNING);
396 if (nunits > 0)
397 printf ("%s %s -%s %s\n", label, state_text (result), outbuff, units);
398 else
399 printf ("%s %s -%s\n", label, state_text (result), outbuff);
401 return result;
402 }
404 /* process command-line arguments */
405 int
406 process_arguments (int argc, char **argv)
407 {
408 char *ptr;
409 int c = 1;
410 int j = 0, jj = 0;
412 #ifdef HAVE_GETOPT_H
413 int option_index = 0;
414 static struct option long_options[] = {
415 STD_LONG_OPTS,
416 {"community", required_argument, 0, 'C'},
417 {"oid", required_argument, 0, 'o'},
418 {"object", required_argument, 0, 'o'},
419 {"delimiter", required_argument, 0, 'd'},
420 {"output-delimiter", required_argument, 0, 'D'},
421 {"string", required_argument, 0, 's'},
422 {"regex", required_argument, 0, 'r'},
423 {"ereg", required_argument, 0, 'r'},
424 {"eregi", required_argument, 0, 'R'},
425 {"label", required_argument, 0, 'l'},
426 {"units", required_argument, 0, 'u'},
427 {"port", required_argument, 0, 'p'},
428 {"miblist", required_argument, 0, 'm'},
429 {"protocol", required_argument, 0, 'P'},
430 {"seclevel", required_argument, 0, 'L'},
431 {"secname", required_argument, 0, 'U'},
432 {"authproto", required_argument, 0, 'a'},
433 {"authpasswd", required_argument, 0, 'A'},
434 {"privpasswd", required_argument, 0, 'X'},
435 {0, 0, 0, 0}
436 };
437 #endif
439 if (argc < 2)
440 return ERROR;
442 /* reverse compatibility for very old non-POSIX usage forms */
443 for (c = 1; c < argc; c++) {
444 if (strcmp ("-to", argv[c]) == 0)
445 strcpy (argv[c], "-t");
446 if (strcmp ("-wv", argv[c]) == 0)
447 strcpy (argv[c], "-w");
448 if (strcmp ("-cv", argv[c]) == 0)
449 strcpy (argv[c], "-c");
450 }
452 while (1) {
453 #ifdef HAVE_GETOPT_H
454 c =
455 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:",
456 long_options, &option_index);
457 #else
458 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:");
459 #endif
461 if (c == -1 || c == EOF)
462 break;
464 switch (c) {
465 case '?': /* usage */
466 usage3 ("Unknown argument", optopt);
467 case 'h': /* help */
468 print_help ();
469 exit (STATE_OK);
470 case 'V': /* version */
471 print_revision (PROGNAME, REVISION);
472 exit (STATE_OK);
473 case 'v': /* verbose */
474 verbose = TRUE;
475 break;
476 case 't': /* timeout period */
477 if (!is_integer (optarg))
478 usage2 ("Timeout Interval must be an integer", optarg);
479 timeout_interval = atoi (optarg);
480 break;
481 case 'e': /* PRELIMINARY - may change */
482 eval_method[j] |= WARN_PRESENT;
483 for (ptr = optarg; (ptr = index (ptr, ',')); ptr++)
484 ptr[0] = ' '; /* relpace comma with space */
485 for (ptr = optarg; (ptr = index (ptr, ' ')); ptr++)
486 eval_method[++j] |= WARN_PRESENT;
487 asprintf (&oid, "%s %s", (oid?oid:""), optarg);
488 break;
489 case 'E': /* PRELIMINARY - may change */
490 eval_method[j] |= WARN_PRESENT;
491 for (ptr = optarg; (ptr = index (ptr, ',')); ptr++)
492 ptr[0] = ' '; /* relpace comma with space */
493 for (ptr = optarg; (ptr = index (ptr, ' ')); ptr++)
494 eval_method[++j] |= CRIT_PRESENT;
495 asprintf (&oid, "%s %s", (oid?oid:""), optarg);
496 break;
497 case 'c': /* critical time threshold */
498 if (strspn (optarg, "0123456789:,") < strlen (optarg)) {
499 printf ("Invalid critical threshold: %s\n", optarg);
500 print_usage ();
501 exit (STATE_UNKNOWN);
502 }
503 for (ptr = optarg, jj = 0; ptr && jj < MAX_OIDS; jj++) {
504 if (lu_getll (&lower_crit_lim[jj], ptr) == 1)
505 eval_method[jj] |= CRIT_LT;
506 if (lu_getul (&upper_crit_lim[jj], ptr) == 1)
507 eval_method[jj] |= CRIT_GT;
508 (ptr = index (ptr, ',')) ? ptr++ : ptr;
509 }
510 break;
511 case 'w': /* warning time threshold */
512 if (strspn (optarg, "0123456789:,") < strlen (optarg)) {
513 printf ("Invalid warning threshold: %s\n", optarg);
514 print_usage ();
515 exit (STATE_UNKNOWN);
516 }
517 for (ptr = optarg, jj = 0; ptr && jj < MAX_OIDS; jj++) {
518 if (lu_getll (&lower_warn_lim[jj], ptr) == 1)
519 eval_method[jj] |= WARN_LT;
520 if (lu_getul (&upper_warn_lim[jj], ptr) == 1)
521 eval_method[jj] |= WARN_GT;
522 (ptr = index (ptr, ',')) ? ptr++ : ptr;
523 }
524 break;
525 case 'H': /* Host or server */
526 server_address = strscpy (server_address, optarg);
527 break;
528 case 'C': /* group or community */
529 community = strscpy (community, optarg);
530 break;
531 case 'o': /* object identifier */
532 for (ptr = optarg; (ptr = index (ptr, ',')); ptr++)
533 ptr[0] = ' '; /* relpace comma with space */
534 for (ptr = optarg; (ptr = index (ptr, ' ')); ptr++)
535 j++; /* count OIDs */
536 asprintf (&oid, "%s %s", (oid?oid:""), optarg);
537 break;
538 case 'd': /* delimiter */
539 delimiter = strscpy (delimiter, optarg);
540 break;
541 case 'D': /* output-delimiter */
542 output_delim = strscpy (output_delim, optarg);
543 break;
544 case 's': /* string or substring */
545 strncpy (string_value, optarg, sizeof (string_value) - 1);
546 string_value[sizeof (string_value) - 1] = 0;
547 eval_method[jj++] = CRIT_STRING;
548 break;
549 case 'R': /* regex */
550 #ifdef HAVE_REGEX_H
551 cflags = REG_ICASE;
552 #endif
553 case 'r': /* regex */
554 #ifdef HAVE_REGEX_H
555 cflags |= REG_EXTENDED | REG_NOSUB | REG_NEWLINE;
556 strncpy (regex_expect, optarg, sizeof (regex_expect) - 1);
557 regex_expect[sizeof (regex_expect) - 1] = 0;
558 errcode = regcomp (&preg, regex_expect, cflags);
559 if (errcode != 0) {
560 regerror (errcode, &preg, errbuf, MAX_INPUT_BUFFER);
561 printf ("Could Not Compile Regular Expression");
562 return ERROR;
563 }
564 eval_method[jj++] = CRIT_REGEX;
565 #else
566 printf ("SNMP UNKNOWN: call for regex which was not a compiled option");
567 exit (STATE_UNKNOWN);
568 #endif
569 break;
570 case 'l': /* label */
571 label = optarg;
572 nlabels++;
573 if (nlabels >= labels_size) {
574 labels_size += 8;
575 labels = realloc (labels, labels_size);
576 if (labels == NULL)
577 terminate (STATE_UNKNOWN,
578 "Could not realloc() labels[%d]", nlabels);
579 }
580 labels[nlabels - 1] = optarg;
581 ptr = thisarg (optarg);
582 if (strstr (ptr, "'") == ptr)
583 labels[nlabels - 1] = ptr + 1;
584 else
585 labels[nlabels - 1] = ptr;
586 while (ptr && (ptr = nextarg (ptr))) {
587 if (nlabels >= labels_size) {
588 labels_size += 8;
589 labels = realloc (labels, labels_size);
590 if (labels == NULL)
591 terminate (STATE_UNKNOWN, "Could not realloc() labels\n");
592 }
593 labels++;
594 ptr = thisarg (ptr);
595 if (strstr (ptr, "'") == ptr)
596 labels[nlabels - 1] = ptr + 1;
597 else
598 labels[nlabels - 1] = ptr;
599 }
600 break;
601 case 'u': /* units */
602 units = optarg;
603 nunits++;
604 if (nunits >= unitv_size) {
605 unitv_size += 8;
606 unitv = realloc (unitv, unitv_size);
607 if (unitv == NULL)
608 terminate (STATE_UNKNOWN,
609 "Could not realloc() units [%d]\n", nunits);
610 }
611 unitv[nunits - 1] = optarg;
612 ptr = thisarg (optarg);
613 if (strstr (ptr, "'") == ptr)
614 unitv[nunits - 1] = ptr + 1;
615 else
616 unitv[nunits - 1] = ptr;
617 while (ptr && (ptr = nextarg (ptr))) {
618 if (nunits >= unitv_size) {
619 unitv_size += 8;
620 unitv = realloc (unitv, unitv_size);
621 if (units == NULL)
622 terminate (STATE_UNKNOWN, "Could not realloc() units\n");
623 }
624 nunits++;
625 ptr = thisarg (ptr);
626 if (strstr (ptr, "'") == ptr)
627 unitv[nunits - 1] = ptr + 1;
628 else
629 unitv[nunits - 1] = ptr;
630 }
631 break;
632 case 'p': /* TCP port number */
633 port = strscpy(port, optarg);
634 break;
635 case 'm': /* List of MIBS */
636 miblist = strscpy(miblist, optarg);
637 break;
638 case 'P': /* SNMP protocol version */
639 proto = strscpy(proto, optarg);
640 break;
641 case 'L': /* security level */
642 seclevel = strscpy(seclevel,optarg);
643 break;
644 case 'U': /* security username */
645 secname = strscpy(secname, optarg);
646 break;
647 case 'a': /* auth protocol */
648 authproto = strscpy(authproto, optarg);
649 break;
650 case 'A': /* auth passwd */
651 authpasswd = strscpy(authpasswd, optarg);
652 break;
653 case 'X': /* priv passwd */
654 privpasswd = strscpy(privpasswd, optarg);
655 break;
657 }
658 }
660 if (server_address == NULL)
661 asprintf (&server_address, argv[optind]);
663 return validate_arguments ();
664 }
666 /******************************************************************************
668 @@-
669 <sect3>
670 <title>validate_arguments</title>
672 <para>&PROTO_validate_arguments;</para>
674 <para>Given a database name, this function returns TRUE if the string
675 is a valid PostgreSQL database name, and returns false if it is
676 not.</para>
678 <para>Valid PostgreSQL database names are less than &NAMEDATALEN;
679 characters long and consist of letters, numbers, and underscores. The
680 first character cannot be a number, however.</para>
682 </sect3>
683 -@@
684 ******************************************************************************/
686 int
687 validate_arguments ()
688 {
690 if (community == NULL)
691 asprintf (&community, DEFAULT_COMMUNITY);
693 if (delimiter == NULL)
694 asprintf (&delimiter, DEFAULT_DELIMITER);
696 if (output_delim == NULL)
697 asprintf (&output_delim, DEFAULT_OUTPUT_DELIMITER);
699 if (miblist == NULL)
700 asprintf (&miblist, DEFAULT_MIBLIST);
702 if (label == NULL)
703 asprintf (&label, "SNMP");
705 if (units == NULL)
706 asprintf (&units, "");
708 if ( strcmp(seclevel, "noAuthNoPriv") && strcmp(seclevel, "authNoPriv") && strcmp(seclevel, "authPriv") ) {
709 if (seclevel == NULL)
710 asprintf (&seclevel, "noAuthNoPriv");
711 else {
712 printf ("Invalid seclevel: %s! \n", seclevel);
713 print_usage ();
714 exit (STATE_UNKNOWN);
715 }
716 }
719 if ( strcmp (authproto, "SHA") && strcmp(authproto, "MD5") ) {
720 if (authproto == NULL )
721 asprintf(&authproto, DEFAULT_AUTH_PROTOCOL);
722 else{
723 printf ("Invalid authproto: %s! \n", authproto);
724 print_usage ();
725 exit (STATE_UNKNOWN);
726 }
727 }
731 if (proto == NULL || !strcmp(proto,DEFAULT_PROTOCOL) ) { /* default protocol version */
732 asprintf(&proto, DEFAULT_PROTOCOL);
733 asprintf(&authpriv, "%s%s", "-c ", community);
734 }
735 else if ( strcmp (proto, "3") == 0 ) { /* snmpv3 args */
736 asprintf(&proto, "%s", "3");
738 if ( (strcmp(seclevel, "noAuthNoPriv") == 0) || seclevel == NULL ) {
739 authpriv = ssprintf(authpriv, "%s", "-l noAuthNoPriv" );
740 }
741 else if ( strcmp(seclevel, "authNoPriv") == 0 ) {
742 if ( secname == NULL || authpasswd == NULL) {
743 printf ("Missing secname (%s) or authpassword (%s) ! \n",secname, authpasswd );
744 print_usage ();
745 exit (STATE_UNKNOWN);
746 }
747 authpriv = ssprintf(authpriv, "-l authNoPriv -a %s -u %s -A %s ", authproto, secname, authpasswd);
748 }
749 else if ( strcmp(seclevel, "authPriv") == 0 ) {
750 if ( secname == NULL || authpasswd == NULL || privpasswd == NULL ) {
751 printf ("Missing secname (%s), authpassword (%s), or privpasswd (%s)! \n",secname, authpasswd,privpasswd );
752 print_usage ();
753 exit (STATE_UNKNOWN);
754 }
755 authpriv = ssprintf(authpriv, "-l authPriv -a %s -u %s -A %s -X %s ", authproto, secname, authpasswd, privpasswd);
756 }
759 }
760 else {
761 printf ("Invalid SNMP version: %s\n", proto);
762 print_usage ();
763 exit (STATE_UNKNOWN);
764 }
769 return OK;
770 }
774 void
775 print_help (void)
776 {
777 print_revision (PROGNAME, REVISION);
778 printf
779 ("Copyright (c) %s %s <%s>\n\n%s\n",
780 COPYRIGHT, AUTHOR, EMAIL, SUMMARY);
781 print_usage ();
782 printf
783 ("\nOptions:\n" LONGOPTIONS "\n" DESCRIPTION "\n" NOTES "\n",
784 DEFAULT_COMMUNITY, DEFAULT_PORT, DEFAULT_DELIMITER, DEFAULT_TIMEOUT);
785 support ();
786 }
788 void
789 print_usage (void)
790 {
791 printf
792 ("Usage:\n" " %s %s\n"
793 " %s (-h | --help) for detailed help\n"
794 " %s (-V | --version) for version information\n",
795 PROGNAME, OPTIONS, PROGNAME, PROGNAME);
796 }
797 \f
800 char *
801 clarify_message (char *msg)
802 {
803 int i = 0;
804 int foo;
805 char tmpmsg_c[MAX_INPUT_BUFFER];
806 char *tmpmsg = (char *) &tmpmsg_c;
807 tmpmsg = strcpy (tmpmsg, msg);
808 if (!strncmp (tmpmsg, " Hex:", 5)) {
809 tmpmsg = strtok (tmpmsg, ":");
810 while ((tmpmsg = strtok (NULL, " "))) {
811 foo = strtol (tmpmsg, NULL, 16);
812 /* Translate chars that are not the same value in the printers
813 * character set.
814 */
815 switch (foo) {
816 case 208:
817 {
818 foo = 197;
819 break;
820 }
821 case 216:
822 {
823 foo = 196;
824 break;
825 }
826 }
827 msg[i] = foo;
828 i++;
829 }
830 msg[i] = 0;
831 }
832 return (msg);
833 }
836 int
837 check_num (int i)
838 {
839 int result;
840 result = STATE_OK;
841 if (eval_method[i] & WARN_GT && eval_method[i] & WARN_LT &&
842 lower_warn_lim[i] > upper_warn_lim[i]) {
843 if (response_value[i] <= lower_warn_lim[i] &&
844 response_value[i] >= upper_warn_lim[i]) {
845 result = STATE_WARNING;
846 }
847 }
848 else if
849 ((eval_method[i] & WARN_GT && response_value[i] > upper_warn_lim[i]) ||
850 (eval_method[i] & WARN_GE && response_value[i] >= upper_warn_lim[i]) ||
851 (eval_method[i] & WARN_LT && response_value[i] < lower_warn_lim[i]) ||
852 (eval_method[i] & WARN_LE && response_value[i] <= lower_warn_lim[i]) ||
853 (eval_method[i] & WARN_EQ && response_value[i] == upper_warn_lim[i]) ||
854 (eval_method[i] & WARN_NE && response_value[i] != upper_warn_lim[i])) {
855 result = STATE_WARNING;
856 }
858 if (eval_method[i] & CRIT_GT && eval_method[i] & CRIT_LT &&
859 lower_warn_lim[i] > upper_warn_lim[i]) {
860 if (response_value[i] <= lower_crit_lim[i] &&
861 response_value[i] >= upper_crit_lim[i]) {
862 result = STATE_CRITICAL;
863 }
864 }
865 else if
866 ((eval_method[i] & CRIT_GT && response_value[i] > upper_crit_lim[i]) ||
867 (eval_method[i] & CRIT_GE && response_value[i] >= upper_crit_lim[i]) ||
868 (eval_method[i] & CRIT_LT && response_value[i] < lower_crit_lim[i]) ||
869 (eval_method[i] & CRIT_LE && response_value[i] <= lower_crit_lim[i]) ||
870 (eval_method[i] & CRIT_EQ && response_value[i] == upper_crit_lim[i]) ||
871 (eval_method[i] & CRIT_NE && response_value[i] != upper_crit_lim[i])) {
872 result = STATE_CRITICAL;
873 }
875 return result;
876 }
879 int
880 lu_getll (unsigned long *ll, char *str)
881 {
882 char tmp[100];
883 if (strchr (str, ':') == NULL)
884 return 0;
885 if (strchr (str, ',') != NULL && (strchr (str, ',') < strchr (str, ':')))
886 return 0;
887 if (sscanf (str, "%lu%[:]", ll, tmp) == 2)
888 return 1;
889 return 0;
890 }
892 int
893 lu_getul (unsigned long *ul, char *str)
894 {
895 char tmp[100];
896 if (sscanf (str, "%lu%[^,]", ul, tmp) == 1)
897 return 1;
898 if (sscanf (str, ":%lu%[^,]", ul, tmp) == 1)
899 return 1;
900 if (sscanf (str, "%*u:%lu%[^,]", ul, tmp) == 1)
901 return 1;
902 return 0;
903 }
910 /* trim leading whitespace
911 if there is a leading quote, make sure it balances */
913 char *
914 thisarg (char *str)
915 {
916 str += strspn (str, " \t\r\n"); /* trim any leading whitespace */
917 if (strstr (str, "'") == str) { /* handle SIMPLE quoted strings */
918 if (strlen (str) == 1 || !strstr (str + 1, "'"))
919 terminate (STATE_UNKNOWN, "Unbalanced quotes\n");
920 }
921 return str;
922 }
925 /* if there's a leading quote, advance to the trailing quote
926 set the trailing quote to '\x0'
927 if the string continues, advance beyond the comma */
929 char *
930 nextarg (char *str)
931 {
932 if (strstr (str, "'") == str) {
933 if (strlen (str) > 1) {
934 str = strstr (str + 1, "'");
935 str[0] = 0;
936 return (++str);
937 }
938 else {
939 str[0] = 0;
940 return NULL;
941 }
942 }
943 if (strstr (str, ",") == str) {
944 if (strlen (str) > 1) {
945 str[0] = 0;
946 return (++str);
947 }
948 else {
949 str[0] = 0;
950 return NULL;
951 }
952 }
953 if ((str = strstr (str, ",")) && strlen (str) > 1) {
954 str[0] = 0;
955 return (++str);
956 }
957 return NULL;
958 }