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 errbuf[MAX_INPUT_BUFFER];
171 int cflags = REG_EXTENDED | REG_NOSUB | REG_NEWLINE;
172 int eflags = 0;
173 int errcode, excode;
174 #endif
176 char *server_address = NULL;
177 char *community = DEFAULT_COMMUNITY;
178 char *authpriv = NULL;
179 char *proto = NULL;
180 char *seclevel = NULL;
181 char *secname = NULL;
182 char *authproto = NULL;
183 char *authpasswd = NULL;
184 char *privpasswd = NULL;
185 char *oid = "";
186 char *label = "SNMP";
187 char *units = "";
188 char *port = DEFAULT_PORT;
189 char string_value[MAX_INPUT_BUFFER] = "";
190 char **labels = NULL;
191 char **unitv = NULL;
192 int nlabels = 0;
193 int labels_size = 8;
194 int nunits = 0;
195 int unitv_size = 8;
196 int verbose = FALSE;
197 unsigned long lower_warn_lim[MAX_OIDS];
198 unsigned long upper_warn_lim[MAX_OIDS];
199 unsigned long lower_crit_lim[MAX_OIDS];
200 unsigned long upper_crit_lim[MAX_OIDS];
201 unsigned long response_value[MAX_OIDS];
202 int check_warning_value = FALSE;
203 int check_critical_value = FALSE;
204 int eval_method[MAX_OIDS];
205 char *delimiter = DEFAULT_DELIMITER;
206 char *output_delim = DEFAULT_OUTPUT_DELIMITER;
207 char *miblist = DEFAULT_MIBLIST;
210 int
211 main (int argc, char **argv)
212 {
213 int i = 0;
214 int iresult = STATE_UNKNOWN;
215 int found = 0;
216 int result = STATE_DEPENDENT;
217 char input_buffer[MAX_INPUT_BUFFER];
218 char *command_line = NULL;
219 char *response = NULL;
220 char *outbuff = "";
221 char *output = "";
222 char *ptr = NULL;
223 char *p2 = NULL;
224 char *show = NULL;
226 labels = malloc (labels_size);
227 unitv = malloc (unitv_size);
228 for (i = 0; i < MAX_OIDS; i++)
229 eval_method[i] = CHECK_UNDEF;
230 i = 0;
232 if (process_arguments (argc, argv) == ERROR)
233 usage ("Incorrect arguments supplied\n");
235 /* create the command line to execute */
236 asprintf (&command_line, "%s -t 1 -r %d -m %s -v %s %s %s:%s %s",
237 PATH_TO_SNMPGET, timeout_interval - 1, miblist, proto,
238 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 if (strstr (response, "STRING: "))
305 show = strstr (response, "STRING: ") + 8;
306 else
307 show = response;
308 p2 = show;
310 iresult = STATE_DEPENDENT;
312 /* Process this block for integer comparisons */
313 if (eval_method[i] & CRIT_GT ||
314 eval_method[i] & CRIT_LT ||
315 eval_method[i] & CRIT_GE ||
316 eval_method[i] & CRIT_LE ||
317 eval_method[i] & CRIT_EQ ||
318 eval_method[i] & CRIT_NE ||
319 eval_method[i] & WARN_GT ||
320 eval_method[i] & WARN_LT ||
321 eval_method[i] & WARN_GE ||
322 eval_method[i] & WARN_LE ||
323 eval_method[i] & WARN_EQ ||
324 eval_method[i] & WARN_NE) {
325 p2 = strpbrk (p2, "0123456789");
326 if (p2 == NULL)
327 terminate (STATE_UNKNOWN,"No valid data returned");
328 response_value[i] = strtoul (p2, NULL, 10);
329 iresult = check_num (i);
330 asprintf (&show, "%lu", response_value[i]);
331 }
333 /* Process this block for string matching */
334 else if (eval_method[i] & CRIT_STRING) {
335 if (strcmp (response, string_value))
336 iresult = STATE_CRITICAL;
337 else
338 iresult = STATE_OK;
339 }
341 /* Process this block for regex matching */
342 else if (eval_method[i] & CRIT_REGEX) {
343 #ifdef HAVE_REGEX_H
344 excode = regexec (&preg, response, 10, pmatch, eflags);
345 if (excode == 0) {
346 iresult = STATE_OK;
347 }
348 else if (excode != REG_NOMATCH) {
349 regerror (excode, &preg, errbuf, MAX_INPUT_BUFFER);
350 printf ("Execute Error: %s\n", errbuf);
351 exit (STATE_CRITICAL);
352 }
353 else {
354 iresult = STATE_CRITICAL;
355 }
356 #else
357 printf ("%s UNKNOWN: call for regex which was not a compiled option", label);
358 exit (STATE_UNKNOWN);
359 #endif
360 }
362 /* Process this block for existence-nonexistence checks */
363 else {
364 if (eval_method[i] & CRIT_PRESENT)
365 iresult = STATE_CRITICAL;
366 else if (eval_method[i] & WARN_PRESENT)
367 iresult = STATE_WARNING;
368 else if (response && iresult == STATE_DEPENDENT)
369 iresult = STATE_OK;
370 }
372 /* Result is the worst outcome of all the OIDs tested */
373 result = max_state (result, iresult);
375 /* Prepend a label for this OID if there is one */
376 if (nlabels > 1 && i < nlabels && labels[i] != NULL)
377 asprintf (&outbuff, "%s%s%s %s%s%s", outbuff,
378 (i == 0) ? " " : output_delim,
379 labels[i], mark (iresult), show, mark (iresult));
380 else
381 asprintf (&outbuff, "%s%s%s%s%s", outbuff, (i == 0) ? " " : output_delim,
382 mark (iresult), show, mark (iresult));
384 /* Append a unit string for this OID if there is one */
385 if (nunits > 0 && i < nunits && unitv[i] != NULL)
386 asprintf (&outbuff, "%s %s", outbuff, unitv[i]);
388 i++;
390 } /* end while (ptr) */
392 if (found == 0)
393 terminate
394 (STATE_UNKNOWN,
395 "%s problem - No data recieved from host\nCMD: %s\n",
396 label, command_line);
398 /* WARNING if output found on stderr */
399 if (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr))
400 result = max_state (result, STATE_WARNING);
402 /* close stderr */
403 (void) fclose (child_stderr);
405 /* close the pipe */
406 if (spclose (child_process))
407 result = max_state (result, STATE_WARNING);
409 /* if (nunits == 1 || i == 1) */
410 /* printf ("%s %s -%s %s\n", label, state_text (result), outbuff, units); */
411 /* else */
412 printf ("%s %s -%s\n", label, state_text (result), outbuff);
414 return result;
415 }
417 /* process command-line arguments */
418 int
419 process_arguments (int argc, char **argv)
420 {
421 char *ptr;
422 int c = 1;
423 int j = 0, jj = 0, ii = 0;
425 int option_index = 0;
426 static struct option long_options[] = {
427 STD_LONG_OPTS,
428 {"community", required_argument, 0, 'C'},
429 {"oid", required_argument, 0, 'o'},
430 {"object", required_argument, 0, 'o'},
431 {"delimiter", required_argument, 0, 'd'},
432 {"output-delimiter", required_argument, 0, 'D'},
433 {"string", required_argument, 0, 's'},
434 {"regex", required_argument, 0, 'r'},
435 {"ereg", required_argument, 0, 'r'},
436 {"eregi", required_argument, 0, 'R'},
437 {"label", required_argument, 0, 'l'},
438 {"units", required_argument, 0, 'u'},
439 {"port", required_argument, 0, 'p'},
440 {"miblist", required_argument, 0, 'm'},
441 {"protocol", required_argument, 0, 'P'},
442 {"seclevel", required_argument, 0, 'L'},
443 {"secname", required_argument, 0, 'U'},
444 {"authproto", required_argument, 0, 'a'},
445 {"authpasswd", required_argument, 0, 'A'},
446 {"privpasswd", required_argument, 0, 'X'},
447 {0, 0, 0, 0}
448 };
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 c = 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:",
465 long_options, &option_index);
467 if (c == -1 || c == EOF)
468 break;
470 switch (c) {
471 case '?': /* usage */
472 usage3 ("Unknown argument", optopt);
473 case 'h': /* help */
474 print_help ();
475 exit (STATE_OK);
476 case 'V': /* version */
477 print_revision (progname, REVISION);
478 exit (STATE_OK);
479 case 'v': /* verbose */
480 verbose = TRUE;
481 break;
483 /* Connection info */
484 case 'C': /* group or community */
485 community = strscpy (community, optarg);
486 break;
487 case 'H': /* Host or server */
488 server_address = strscpy (server_address, optarg);
489 break;
490 case 'p': /* TCP port number */
491 port = strscpy(port, optarg);
492 break;
493 case 'm': /* List of MIBS */
494 miblist = strscpy(miblist, optarg);
495 break;
496 case 'P': /* SNMP protocol version */
497 proto = strscpy(proto, optarg);
498 break;
499 case 'L': /* security level */
500 seclevel = strscpy(seclevel,optarg);
501 break;
502 case 'U': /* security username */
503 secname = strscpy(secname, optarg);
504 break;
505 case 'a': /* auth protocol */
506 asprintf (&authproto, optarg);
507 break;
508 case 'A': /* auth passwd */
509 authpasswd = strscpy(authpasswd, optarg);
510 break;
511 case 'X': /* priv passwd */
512 privpasswd = strscpy(privpasswd, optarg);
513 break;
514 case 't': /* timeout period */
515 if (!is_integer (optarg))
516 usage2 ("Timeout Interval must be an integer", optarg);
517 timeout_interval = atoi (optarg);
518 break;
520 /* Test parameters */
521 case 'c': /* critical time threshold */
522 if (strspn (optarg, "0123456789:,") < strlen (optarg)) {
523 printf ("Invalid critical threshold: %s\n", optarg);
524 print_usage ();
525 exit (STATE_UNKNOWN);
526 }
527 for (ptr = optarg; ptr && jj < MAX_OIDS; jj++) {
528 if (lu_getll (&lower_crit_lim[jj], ptr) == 1)
529 eval_method[jj] |= CRIT_LT;
530 if (lu_getul (&upper_crit_lim[jj], ptr) == 1)
531 eval_method[jj] |= CRIT_GT;
532 (ptr = index (ptr, ',')) ? ptr++ : ptr;
533 }
534 break;
535 case 'w': /* warning time threshold */
536 if (strspn (optarg, "0123456789:,") < strlen (optarg)) {
537 printf ("Invalid warning threshold: %s\n", optarg);
538 print_usage ();
539 exit (STATE_UNKNOWN);
540 }
541 for (ptr = optarg; ptr && ii < MAX_OIDS; ii++) {
542 if (lu_getll (&lower_warn_lim[ii], ptr) == 1)
543 eval_method[ii] |= WARN_LT;
544 if (lu_getul (&upper_warn_lim[ii], ptr) == 1)
545 eval_method[ii] |= WARN_GT;
546 (ptr = index (ptr, ',')) ? ptr++ : ptr;
547 }
548 break;
549 case 'o': /* object identifier */
550 case 'e': /* PRELIMINARY - may change */
551 case 'E': /* PRELIMINARY - may change */
552 for (ptr = optarg; (ptr = index (ptr, ',')); ptr++)
553 ptr[0] = ' '; /* relpace comma with space */
554 for (ptr = optarg; (ptr = index (ptr, ' ')); ptr++)
555 j++; /* count OIDs */
556 asprintf (&oid, "%s %s", (oid?oid:""), optarg);
557 if (c == 'E' || c == 'e') {
558 jj++;
559 ii++;
560 }
561 if (c == 'E')
562 eval_method[j+1] |= WARN_PRESENT;
563 else if (c == 'e')
564 eval_method[j+1] |= CRIT_PRESENT;
565 break;
566 case 's': /* string or substring */
567 strncpy (string_value, optarg, sizeof (string_value) - 1);
568 string_value[sizeof (string_value) - 1] = 0;
569 eval_method[jj++] = CRIT_STRING;
570 ii++;
571 break;
572 case 'R': /* regex */
573 #ifdef HAVE_REGEX_H
574 cflags = REG_ICASE;
575 #endif
576 case 'r': /* regex */
577 #ifdef HAVE_REGEX_H
578 cflags |= REG_EXTENDED | REG_NOSUB | REG_NEWLINE;
579 strncpy (regex_expect, optarg, sizeof (regex_expect) - 1);
580 regex_expect[sizeof (regex_expect) - 1] = 0;
581 errcode = regcomp (&preg, regex_expect, cflags);
582 if (errcode != 0) {
583 regerror (errcode, &preg, errbuf, MAX_INPUT_BUFFER);
584 printf ("Could Not Compile Regular Expression");
585 return ERROR;
586 }
587 eval_method[jj++] = CRIT_REGEX;
588 ii++;
589 #else
590 printf ("%s UNKNOWN: call for regex which was not a compiled option", label);
591 exit (STATE_UNKNOWN);
592 #endif
593 break;
595 /* Format */
596 case 'd': /* delimiter */
597 delimiter = strscpy (delimiter, optarg);
598 break;
599 case 'D': /* output-delimiter */
600 output_delim = strscpy (output_delim, optarg);
601 break;
602 case 'l': /* label */
603 label = optarg;
604 nlabels++;
605 if (nlabels >= labels_size) {
606 labels_size += 8;
607 labels = realloc (labels, labels_size);
608 if (labels == NULL)
609 terminate (STATE_UNKNOWN,
610 "Could not realloc() labels[%d]", nlabels);
611 }
612 labels[nlabels - 1] = optarg;
613 ptr = thisarg (optarg);
614 if (strstr (ptr, "'") == ptr)
615 labels[nlabels - 1] = ptr + 1;
616 else
617 labels[nlabels - 1] = ptr;
618 while (ptr && (ptr = nextarg (ptr))) {
619 if (nlabels >= labels_size) {
620 labels_size += 8;
621 labels = realloc (labels, labels_size);
622 if (labels == NULL)
623 terminate (STATE_UNKNOWN, "Could not realloc() labels\n");
624 }
625 labels++;
626 ptr = thisarg (ptr);
627 if (strstr (ptr, "'") == ptr)
628 labels[nlabels - 1] = ptr + 1;
629 else
630 labels[nlabels - 1] = ptr;
631 }
632 break;
633 case 'u': /* units */
634 units = optarg;
635 nunits++;
636 if (nunits >= unitv_size) {
637 unitv_size += 8;
638 unitv = realloc (unitv, unitv_size);
639 if (unitv == NULL)
640 terminate (STATE_UNKNOWN,
641 "Could not realloc() units [%d]\n", nunits);
642 }
643 unitv[nunits - 1] = optarg;
644 ptr = thisarg (optarg);
645 if (strstr (ptr, "'") == ptr)
646 unitv[nunits - 1] = ptr + 1;
647 else
648 unitv[nunits - 1] = ptr;
649 while (ptr && (ptr = nextarg (ptr))) {
650 if (nunits >= unitv_size) {
651 unitv_size += 8;
652 unitv = realloc (unitv, unitv_size);
653 if (units == NULL)
654 terminate (STATE_UNKNOWN, "Could not realloc() units\n");
655 }
656 nunits++;
657 ptr = thisarg (ptr);
658 if (strstr (ptr, "'") == ptr)
659 unitv[nunits - 1] = ptr + 1;
660 else
661 unitv[nunits - 1] = ptr;
662 }
663 break;
665 }
666 }
668 if (server_address == NULL)
669 asprintf (&server_address, argv[optind]);
671 return validate_arguments ();
672 }
674 /******************************************************************************
676 @@-
677 <sect3>
678 <title>validate_arguments</title>
680 <para>&PROTO_validate_arguments;</para>
682 <para>Given a database name, this function returns TRUE if the string
683 is a valid PostgreSQL database name, and returns false if it is
684 not.</para>
686 <para>Valid PostgreSQL database names are less than &NAMEDATALEN;
687 characters long and consist of letters, numbers, and underscores. The
688 first character cannot be a number, however.</para>
690 </sect3>
691 -@@
692 ******************************************************************************/
694 int
695 validate_arguments ()
696 {
698 /* Need better checks to verify seclevel and authproto choices */
700 if (seclevel == NULL)
701 asprintf (&seclevel, "noAuthNoPriv");
704 if (authproto == NULL )
705 asprintf(&authproto, DEFAULT_AUTH_PROTOCOL);
709 if (proto == NULL || (strcmp(proto,DEFAULT_PROTOCOL) == 0) ) { /* default protocol version */
710 asprintf(&proto, DEFAULT_PROTOCOL);
711 asprintf(&authpriv, "%s%s", "-c ", community);
712 }
713 else if ( strcmp (proto, "3") == 0 ) { /* snmpv3 args */
714 asprintf(&proto, "%s", "3");
716 if ( (strcmp(seclevel, "noAuthNoPriv") == 0) || seclevel == NULL ) {
717 asprintf(&authpriv, "%s", "-l noAuthNoPriv" );
718 }
719 else if ( strcmp(seclevel, "authNoPriv") == 0 ) {
720 if ( secname == NULL || authpasswd == NULL) {
721 printf ("Missing secname (%s) or authpassword (%s) ! \n",secname, authpasswd );
722 print_usage ();
723 exit (STATE_UNKNOWN);
724 }
725 asprintf(&authpriv, "-l authNoPriv -a %s -u %s -A %s ", authproto, secname, authpasswd);
726 }
727 else if ( strcmp(seclevel, "authPriv") == 0 ) {
728 if ( secname == NULL || authpasswd == NULL || privpasswd == NULL ) {
729 printf ("Missing secname (%s), authpassword (%s), or privpasswd (%s)! \n",secname, authpasswd,privpasswd );
730 print_usage ();
731 exit (STATE_UNKNOWN);
732 }
733 asprintf(&authpriv, "-l authPriv -a %s -u %s -A %s -x DES -X %s ", authproto, secname, authpasswd, privpasswd);
734 }
737 }
738 else {
739 printf ("Invalid SNMP version: %s\n", proto);
740 print_usage ();
741 exit (STATE_UNKNOWN);
742 }
747 return OK;
748 }
752 void
753 print_help (void)
754 {
755 print_revision (progname, REVISION);
756 printf
757 ("Copyright (c) %s %s <%s>\n\n%s\n", COPYRIGHT, AUTHOR, EMAIL, SUMMARY);
758 print_usage ();
759 printf
760 ("\nOptions:\n" LONGOPTIONS "\n" DESCRIPTION "\n" NOTES "\n",
761 DEFAULT_COMMUNITY, DEFAULT_PORT, DEFAULT_DELIMITER, DEFAULT_TIMEOUT);
762 support ();
763 }
765 void
766 print_usage (void)
767 {
768 printf
769 ("Usage:\n" " %s %s\n"
770 " %s (-h | --help) for detailed help\n"
771 " %s (-V | --version) for version information\n",
772 progname, OPTIONS, progname, progname);
773 }
774 \f
777 char *
778 clarify_message (char *msg)
779 {
780 int i = 0;
781 int foo;
782 char tmpmsg_c[MAX_INPUT_BUFFER];
783 char *tmpmsg = (char *) &tmpmsg_c;
784 tmpmsg = strcpy (tmpmsg, msg);
785 if (!strncmp (tmpmsg, " Hex:", 5)) {
786 tmpmsg = strtok (tmpmsg, ":");
787 while ((tmpmsg = strtok (NULL, " "))) {
788 foo = strtol (tmpmsg, NULL, 16);
789 /* Translate chars that are not the same value in the printers
790 * character set.
791 */
792 switch (foo) {
793 case 208:
794 {
795 foo = 197;
796 break;
797 }
798 case 216:
799 {
800 foo = 196;
801 break;
802 }
803 }
804 msg[i] = foo;
805 i++;
806 }
807 msg[i] = 0;
808 }
809 return (msg);
810 }
813 int
814 check_num (int i)
815 {
816 int result;
817 result = STATE_OK;
818 if (eval_method[i] & WARN_GT && eval_method[i] & WARN_LT &&
819 lower_warn_lim[i] > upper_warn_lim[i]) {
820 if (response_value[i] <= lower_warn_lim[i] &&
821 response_value[i] >= upper_warn_lim[i]) {
822 result = STATE_WARNING;
823 }
824 }
825 else if
826 ((eval_method[i] & WARN_GT && response_value[i] > upper_warn_lim[i]) ||
827 (eval_method[i] & WARN_GE && response_value[i] >= upper_warn_lim[i]) ||
828 (eval_method[i] & WARN_LT && response_value[i] < lower_warn_lim[i]) ||
829 (eval_method[i] & WARN_LE && response_value[i] <= lower_warn_lim[i]) ||
830 (eval_method[i] & WARN_EQ && response_value[i] == upper_warn_lim[i]) ||
831 (eval_method[i] & WARN_NE && response_value[i] != upper_warn_lim[i])) {
832 result = STATE_WARNING;
833 }
835 if (eval_method[i] & CRIT_GT && eval_method[i] & CRIT_LT &&
836 lower_warn_lim[i] > upper_warn_lim[i]) {
837 if (response_value[i] <= lower_crit_lim[i] &&
838 response_value[i] >= upper_crit_lim[i]) {
839 result = STATE_CRITICAL;
840 }
841 }
842 else if
843 ((eval_method[i] & CRIT_GT && response_value[i] > upper_crit_lim[i]) ||
844 (eval_method[i] & CRIT_GE && response_value[i] >= upper_crit_lim[i]) ||
845 (eval_method[i] & CRIT_LT && response_value[i] < lower_crit_lim[i]) ||
846 (eval_method[i] & CRIT_LE && response_value[i] <= lower_crit_lim[i]) ||
847 (eval_method[i] & CRIT_EQ && response_value[i] == upper_crit_lim[i]) ||
848 (eval_method[i] & CRIT_NE && response_value[i] != upper_crit_lim[i])) {
849 result = STATE_CRITICAL;
850 }
852 return result;
853 }
856 int
857 lu_getll (unsigned long *ll, char *str)
858 {
859 char tmp[100];
860 if (strchr (str, ':') == NULL)
861 return 0;
862 if (strchr (str, ',') != NULL && (strchr (str, ',') < strchr (str, ':')))
863 return 0;
864 if (sscanf (str, "%lu%[:]", ll, tmp) == 2)
865 return 1;
866 return 0;
867 }
869 int
870 lu_getul (unsigned long *ul, char *str)
871 {
872 char tmp[100];
873 if (sscanf (str, "%lu%[^,]", ul, tmp) == 1)
874 return 1;
875 if (sscanf (str, ":%lu%[^,]", ul, tmp) == 1)
876 return 1;
877 if (sscanf (str, "%*u:%lu%[^,]", ul, tmp) == 1)
878 return 1;
879 return 0;
880 }
887 /* trim leading whitespace
888 if there is a leading quote, make sure it balances */
890 char *
891 thisarg (char *str)
892 {
893 str += strspn (str, " \t\r\n"); /* trim any leading whitespace */
894 if (strstr (str, "'") == str) { /* handle SIMPLE quoted strings */
895 if (strlen (str) == 1 || !strstr (str + 1, "'"))
896 terminate (STATE_UNKNOWN, "Unbalanced quotes\n");
897 }
898 return str;
899 }
902 /* if there's a leading quote, advance to the trailing quote
903 set the trailing quote to '\x0'
904 if the string continues, advance beyond the comma */
906 char *
907 nextarg (char *str)
908 {
909 if (strstr (str, "'") == str) {
910 if (strlen (str) > 1) {
911 str = strstr (str + 1, "'");
912 str[0] = 0;
913 return (++str);
914 }
915 else {
916 str[0] = 0;
917 return NULL;
918 }
919 }
920 if (strstr (str, ",") == str) {
921 if (strlen (str) > 1) {
922 str[0] = 0;
923 return (++str);
924 }
925 else {
926 str[0] = 0;
927 return NULL;
928 }
929 }
930 if ((str = strstr (str, ",")) && strlen (str) > 1) {
931 str[0] = 0;
932 return (++str);
933 }
934 return NULL;
935 }