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diff --git a/plugins/check_snmp.c b/plugins/check_snmp.c
index 220be234c6dc0cfddbdfc8292dd554f89367317c..38ce940bfdcc454a87859267d8fbdfa9509ae4ec 100644 (file)
--- a/plugins/check_snmp.c
+++ b/plugins/check_snmp.c
/******************************************************************************
- *
- * CHECK_SNMP.C
*
* Program: SNMP plugin for Nagios
* License: GPL
- * Copyright (c) 1999 Ethan Galstad (nagios@nagios.org)
- *
- * Last Modified: $Date$
- *
- * Description:
- *
- * This plugin uses the 'snmpget' command included with the UCD-SNMP
- * package. If you don't have the package installed you will need to
- * download it from http://ucd-snmp.ucdavis.edu before you can use
- * this plugin.
*
* License Information:
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
*./plugins/check_snmp 127.0.0.1 -c public -o .1.3.6.1.4.1.2021.9.1.2.1
+ *
*****************************************************************************/
+#define PROGNAME "check_snmp"
+#define REVISION "$Revision$"
+#define COPYRIGHT "1999-2002"
+#define AUTHOR "Ethan Galstad"
+#define EMAIL "nagios@nagios.org"
+#define SUMMARY "Check status of remote machines using SNMP.\n"
+
+#define OPTIONS "\
+-H <ip_address> -o <OID> [-w warn_range] [-c crit_range] \n\
+ [-C community] [-s string] [-r regex] [-R regexi] [-t timeout]\n\
+ [-l label] [-u units] [-p port-number] [-d delimiter]\n\
+ [-D output-delimiter]"
+
+#define LONGOPTIONS "\
+ -H, --hostname=HOST\n\
+ Name or IP address of the device you wish to query\n\
+ -o, --oid=OID(s)\n\
+ Object identifier(s) whose value you wish to query\n\
+ -w, --warning=INTEGER_RANGE(s)\n\
+ Range(s) which will not result in a WARNING status\n\
+ -c, --critical=INTEGER_RANGE(s)\n\
+ Range(s) which will not result in a CRITICAL status\n\
+ -C, --community=STRING\n\
+ Optional community string for SNMP communication\n\
+ (default is \"%s\")\n\
+ -u, --units=STRING\n\
+ Units label(s) for output data (e.g., 'sec.').\n\
+ -p, --port=STRING\n\
+ UDP port number target is listening on. Default is \"%s\"\n\
+ -d, --delimiter=STRING\n\
+ Delimiter to use when parsing returned data. Default is \"%s\"\n\
+ Any data on the right hand side of the delimiter is considered\n\
+ to be the data that should be used in the evaluation.\n\
+ -t, --timeout=INTEGER\n\
+ Seconds to wait before plugin times out (see also nagios server timeout).\n\
+ Default is %d seconds\n\
+ -D, --output-delimiter=STRING\n\
+ Separates output on multiple OID requests\n\
+ -s, --string=STRING\n\
+ Return OK state (for that OID) if STRING is an exact match\n\
+ -r, --ereg=REGEX\n\
+ Return OK state (for that OID) if extended regular expression REGEX matches\n\
+ -R, --eregi=REGEX\n\
+ Return OK state (for that OID) if case-insensitive extended REGEX matches\n\
+ -l, --label=STRING\n\
+ Prefix label for output from plugin (default -s 'SNMP')\n"
+
+#define NOTES "\
+- This plugin uses the 'snmpget' command included with the UCD-SNMP package.\n\
+ If you don't have the package installed, you will need to download it from\n\
+ http://ucd-snmp.ucdavis.edu before you can use this plugin.\n\
+- Multiple OIDs may be indicated by a comma- or space-delimited list (lists with\n\
+ internal spaces must be quoted)\n\
+- Ranges are inclusive and are indicated with colons. When specified as\n\
+ 'min:max' a STATE_OK will be returned if the result is within the indicated\n\
+ range or is equal to the upper or lower bound. A non-OK state will be\n\
+ returned if the result is outside the specified range.\n\
+- If spcified in the order 'max:min' a non-OK state will be returned if the\n\
+ result is within the (inclusive) range.\n\
+- Upper or lower bounds may be omitted to skip checking the respective limit.\n\
+- Bare integers are interpreted as upper limits.\n\
+- When checking multiple OIDs, separate ranges by commas like '-w 1:10,1:,:20'\n\
+- Note that only one string and one regex may be checked at present\n\
+- All evaluation methods other than PR, STR, and SUBSTR expect that the value\n\
+ returned from the SNMP query is an unsigned integer.\n"
+
+#define DESCRIPTION "\
+This plugin gets system information on a remote server via snmp.\n"
+
+#define DEFAULT_COMMUNITY "public"
+#define DEFAULT_PORT "161"
+#define DEFAULT_TIMEOUT 10
+
#include "common.h"
#include "utils.h"
#include "popen.h"
-#define PROGNAME check_snmp
-
#define mark(a) ((a)!=0?"*":"")
#define CHECK_UNDEF 0
#define DEFAULT_OUTPUT_DELIMITER " "
void print_usage (void);
-void print_help (char *);
+void print_help (void);
int process_arguments (int, char **);
-int call_getopt (int, char **);
+int validate_arguments (void);
int check_num (int);
char *clarify_message (char *);
int lu_getll (unsigned long *, char *);
char *server_address = NULL;
char *community = NULL;
-char oid[MAX_INPUT_BUFFER] = "";
+char *oid = NULL;
char *label = NULL;
char *units = NULL;
char *port = NULL;
int labels_size = 8;
int nunits = 0;
int unitv_size = 8;
+int verbose = FALSE;
unsigned long lower_warn_lim[MAX_OIDS];
unsigned long upper_warn_lim[MAX_OIDS];
unsigned long lower_crit_lim[MAX_OIDS];
usage ("Incorrect arguments supplied\n");
/* create the command line to execute */
- asprintf
- (&command_line,
- "%s -p %s -m ALL -v 1 %s -c %s %s",
- PATH_TO_SNMPGET, port, server_address, community, oid);
+ asprintf (&command_line, "%s -p %s -m ALL -v 1 %s -c %s %s",
+ PATH_TO_SNMPGET, port, server_address, community, oid);
+ if (verbose)
+ printf ("%s\n", command_line);
/* run the command */
child_process = spopen (command_line);
printf ("Could not open stderr for %s\n", command_line);
}
+ asprintf (&output, "");
while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process))
- output = strscat (output, input_buffer);
+ asprintf (&output, "%s%s", output, input_buffer);
+
+ if (verbose)
+ printf ("%s\n", output);
ptr = output;
show = response;
p2 = show;
+ iresult = STATE_DEPENDENT;
+
+ if (eval_method[i] & CRIT_PRESENT) {
+ iresult = STATE_CRITICAL;
+ } else if (eval_method[i] & WARN_PRESENT) {
+ iresult = STATE_WARNING;
+ }
+
if (eval_method[i] & CRIT_GT ||
eval_method[i] & CRIT_LT ||
eval_method[i] & CRIT_GE ||
#endif
}
- else {
- if (response)
- iresult = STATE_OK;
- else if (eval_method[i] & CRIT_PRESENT)
- iresult = STATE_CRITICAL;
- else
- iresult = STATE_WARNING;
- }
+ if (response && iresult == STATE_DEPENDENT)
+ iresult = STATE_OK;
+ else if (eval_method[i] & CRIT_PRESENT)
+ iresult = STATE_CRITICAL;
+ else
+ iresult = STATE_WARNING;
result = max_state (result, iresult);
if (nlabels > 1 && i < nlabels && labels[i] != NULL)
- asprintf
- (&outbuff,
- "%s%s%s %s%s%s",
- outbuff,
- (i == 0) ? " " : output_delim,
- labels[i], mark (iresult), show, mark (iresult));
+ asprintf (&outbuff, "%s%s%s %s%s%s", outbuff,
+ (i == 0) ? " " : output_delim,
+ labels[i], mark (iresult), show, mark (iresult));
else
- asprintf (&outbuff, "%s%s%s%s%s", outbuff,
- (i == 0) ? " " : output_delim, mark (iresult), show, mark (iresult));
+ asprintf (&outbuff, "%s%s%s%s%s", outbuff, (i == 0) ? " " : output_delim,
+ mark (iresult), show, mark (iresult));
if (nunits > 0 && i < nunits)
asprintf (&outbuff, "%s %s", outbuff, unitv[i]);
/* process command-line arguments */
int
process_arguments (int argc, char **argv)
-{
- int c;
-
- if (argc < 2)
- return ERROR;
-
- for (c = 1; c < argc; c++) {
- if (strcmp ("-to", argv[c]) == 0)
- strcpy (argv[c], "-t");
- if (strcmp ("-wv", argv[c]) == 0)
- strcpy (argv[c], "-w");
- if (strcmp ("-cv", argv[c]) == 0)
- strcpy (argv[c], "-c");
- }
-
- c = 0;
- while (c += (call_getopt (argc - c, &argv[c]))) {
- if (argc <= c)
- break;
- if (server_address == NULL)
- server_address = strscpy (NULL, argv[c]);
- }
-
- if (community == NULL)
- community = strscpy (NULL, "public");
-
- if (delimiter == NULL)
- delimiter = strscpy (NULL, DEFAULT_DELIMITER);
-
- if (output_delim == NULL)
- output_delim = strscpy (NULL, DEFAULT_OUTPUT_DELIMITER);
-
- if (label == NULL)
- label = strscpy (NULL, "SNMP");
-
- if (units == NULL)
- units = strscpy (NULL, "");
-
- if (port == NULL)
- port = strscpy(NULL,"161");
-
- return c;
-}
-
-int
-call_getopt (int argc, char **argv)
{
char *ptr;
- int c, i = 1;
+ int c = 1;
int j = 0, jj = 0;
#ifdef HAVE_GETOPT_H
int option_index = 0;
static struct option long_options[] = {
- {"help", no_argument, 0, 'h'},
- {"version", no_argument, 0, 'V'},
- {"timeout", required_argument, 0, 't'},
- {"critical", required_argument, 0, 'c'},
- {"warning", required_argument, 0, 'w'},
- {"hostname", required_argument, 0, 'H'},
+ STD_LONG_OPTS,
{"community", required_argument, 0, 'C'},
{"oid", required_argument, 0, 'o'},
{"object", required_argument, 0, 'o'},
};
#endif
+ if (argc < 2)
+ return ERROR;
+
+ /* reverse compatibility for very old non-POSIX usage forms */
+ for (c = 1; c < argc; c++) {
+ if (strcmp ("-to", argv[c]) == 0)
+ strcpy (argv[c], "-t");
+ if (strcmp ("-wv", argv[c]) == 0)
+ strcpy (argv[c], "-w");
+ if (strcmp ("-cv", argv[c]) == 0)
+ strcpy (argv[c], "-c");
+ }
+
+ /* initialize some args */
+ asprintf (&oid, "");
+
while (1) {
#ifdef HAVE_GETOPT_H
c =
- getopt_long (argc, argv, "+?hVt:c:w:H:C:o:d:D:s:R:r:l:u:p:",
+ getopt_long (argc, argv, "+?hVt:c:w:H:C:o:e:E:d:D:s:R:r:l:u:p:",
long_options, &option_index);
#else
- c = getopt (argc, argv, "+?hVt:c:w:H:C:o:d:D:s:R:r:l:u:p:");
+ c = getopt (argc, argv, "+?hVt:c:w:H:C:o:e:E:d:D:s:R:r:l:u:p:");
#endif
if (c == -1 || c == EOF)
break;
- i++;
switch (c) {
- case 't':
- case 'c':
- case 'w':
- case 'H':
- case 'C':
- case 'o':
- case 'd':
- case 'D':
- case 's':
- case 'R':
- case 'r':
- case 'l':
- case 'u':
- case 'p':
- i++;
- }
-
- switch (c) {
- case '?': /* help */
- printf ("%s: Unknown argument: %s\n\n", my_basename (argv[0]), optarg);
- print_usage ();
- exit (STATE_UNKNOWN);
- case 'h': /* help */
- print_help (my_basename (argv[0]));
+ case '?': /* usage */
+ usage2 ("Unknown argument", optarg);
+ case 'h': /* help */
+ print_help ();
exit (STATE_OK);
- case 'V': /* version */
- print_revision (my_basename (argv[0]), "$Revision$");
+ case 'V': /* version */
+ print_revision (PROGNAME, REVISION);
exit (STATE_OK);
- case 't': /* timeout period */
- if (!is_integer (optarg)) {
- printf ("%s: Timeout Interval must be an integer!\n\n",
- my_basename (argv[0]));
- print_usage ();
- exit (STATE_UNKNOWN);
- }
+ case 'v': /* verbose */
+ verbose = TRUE;
+ break;
+ case 't': /* timeout period */
+ if (!is_integer (optarg))
+ usage2 ("Timeout Interval must be an integer", optarg);
timeout_interval = atoi (optarg);
break;
+ case 'e': /* PRELIMINARY - may change */
+ eval_method[j] |= WARN_PRESENT;
+ for (ptr = optarg; (ptr = index (ptr, ',')); ptr++)
+ ptr[0] = ' '; /* relpace comma with space */
+ for (ptr = optarg; (ptr = index (ptr, ' ')); ptr++)
+ eval_method[++j] |= WARN_PRESENT;
+ asprintf (&oid, "%s %s", oid, optarg);
+ break;
+ case 'E': /* PRELIMINARY - may change */
+ eval_method[j] |= WARN_PRESENT;
+ for (ptr = optarg; (ptr = index (ptr, ',')); ptr++)
+ ptr[0] = ' '; /* relpace comma with space */
+ for (ptr = optarg; (ptr = index (ptr, ' ')); ptr++)
+ eval_method[++j] |= CRIT_PRESENT;
+ asprintf (&oid, "%s %s", oid, optarg);
+ break;
case 'c': /* critical time threshold */
if (strspn (optarg, "0123456789:,") < strlen (optarg)) {
printf ("Invalid critical threshold: %s\n", optarg);
break;
case 'o': /* object identifier */
for (ptr = optarg; (ptr = index (ptr, ',')); ptr++)
- ptr[0] = ' ';
- strncpy (oid, optarg, sizeof (oid) - 1);
- oid[sizeof (oid) - 1] = 0;
- for (ptr = optarg, j = 1; (ptr = index (ptr, ' ')); ptr++)
- j++;
+ ptr[0] = ' '; /* relpace comma with space */
+ for (ptr = optarg; (ptr = index (ptr, ' ')); ptr++) {
+ j++; /* count OIDs */
+ }
+ asprintf (&oid, "%s %s", oid, optarg);
break;
case 'd': /* delimiter */
delimiter = strscpy (delimiter, optarg);
}
}
- return i;
+
+ if (server_address == NULL)
+ asprintf (&server_address, argv[optind]);
+
+ return validate_arguments ();
}
+/******************************************************************************
+
+@@-
+<sect3>
+<title>validate_arguments</title>
+
+<para>&PROTO_validate_arguments;</para>
+
+<para>Given a database name, this function returns TRUE if the string
+is a valid PostgreSQL database name, and returns false if it is
+not.</para>
+
+<para>Valid PostgreSQL database names are less than &NAMEDATALEN;
+characters long and consist of letters, numbers, and underscores. The
+first character cannot be a number, however.</para>
+
+</sect3>
+-@@
+******************************************************************************/
+
+int
+validate_arguments ()
+{
+
+ if (community == NULL)
+ asprintf (&community, DEFAULT_COMMUNITY);
+
+ if (delimiter == NULL)
+ asprintf (&delimiter, DEFAULT_DELIMITER);
+
+ if (output_delim == NULL)
+ asprintf (&output_delim, DEFAULT_OUTPUT_DELIMITER);
+
+ if (label == NULL)
+ asprintf (&label, "SNMP");
+
+ if (units == NULL)
+ asprintf (&units, "");
+
+ if (port == NULL)
+ asprintf (&port, DEFAULT_PORT);
+
+ return OK;
+}
+\f
+
+
void
-print_usage (void)
+print_help (void)
{
+ print_revision (PROGNAME, REVISION);
+ printf
+ ("Copyright (c) %s %s <%s>\n\n%s\n",
+ COPYRIGHT, AUTHOR, EMAIL, SUMMARY);
+ print_usage ();
printf
- ("Usage: check_snmp -H <ip_address> -o <OID> [-w warn_range] [-c crit_range] \n"
- " [-C community] [-s string] [-r regex] [-R regexi] [-t timeout]\n"
- " [-l label] [-u units] [-p port-number] [-d delimiter] [-D output-delimiter]\n"
- " check_snmp --help\n" " check_snmp --version\n");
+ ("\nOptions:\n" LONGOPTIONS "\n" DESCRIPTION "\n" NOTES "\n",
+ DEFAULT_COMMUNITY, DEFAULT_PORT, DEFAULT_DELIMITER, DEFAULT_TIMEOUT);
+ support ();
}
void
-print_help (char *cmd)
+print_usage (void)
{
- printf ("Copyright (c) 1999 Ethan Galstad (nagios@nagios.org)\n"
- "License: GPL\n\n");
- print_usage ();
printf
- ("\nOptions:\n"
- " -h, --help\n"
- " Print detailed help screen\n"
- " -V, --version\n"
- " Print version information\n"
- " -H, --hostname=HOST\n"
- " Name or IP address of the device you wish to query\n"
- " -o, --oid=OID(s)\n"
- " Object identifier(s) whose value you wish to query\n"
- " -w, --warning=INTEGER_RANGE(s)\n"
- " Range(s) which will not result in a WARNING status\n"
- " -c, --critical=INTEGER_RANGE(s)\n"
- " Range(s) which will not result in a CRITICAL status\n"
- " -C, --community=STRING\n"
- " Optional community string for SNMP communication\n"
- " (default is \"public\")\n"
- " -u, --units=STRING\n"
- " Units label(s) for output data (e.g., 'sec.').\n"
- " -p, --port=STRING\n"
- " UDP port number target is listening on.\n"
- " -d, --delimiter=STRING\n"
- " Delimiter to use when parsing returned data. Default is \"%s\"\n"
- " Any data on the right hand side of the delimiter is considered\n"
- " to be the data that should be used in the evaluation.\n"
- " -t, --timeout=INTEGER\n"
- " Seconds to wait before plugin times out (see also nagios server timeout)\n"
- " -D, --output-delimiter=STRING\n"
- " Separates output on multiple OID requests\n"
- " -s, --string=STRING\n"
- " Return OK state (for that OID) if STRING is an exact match\n"
- " -r, --ereg=REGEX\n"
- " Return OK state (for that OID) if extended regular expression REGEX matches\n"
- " -R, --eregi=REGEX\n"
- " Return OK state (for that OID) if case-insensitive extended REGEX matches\n"
- " -l, --label=STRING\n"
- " Prefix label for output from plugin (default -s 'SNMP')\n\n"
- "- This plugin uses the 'snmpget' command included with the UCD-SNMP package.\n"
- " If you don't have the package installed, you will need to download it from\n"
- " http://ucd-snmp.ucdavis.edu before you can use this plugin.\n"
- "- Multiple OIDs may be indicated by a comma- or space-delimited list (lists with\n"
- " internal spaces must be quoted)\n"
- "- Ranges are inclusive and are indicated with colons. When specified as\n"
- " 'min:max' a STATE_OK will be returned if the result is within the indicated\n"
- " range or is equal to the upper or lower bound. A non-OK state will be\n"
- " returned if the result is outside the specified range.\n"
- "- If spcified in the order 'max:min' a non-OK state will be returned if the\n"
- " result is within the (inclusive) range.\n"
- "- Upper or lower bounds may be omitted to skip checking the respective limit.\n"
- "- Bare integers are interpreted as upper limits.\n"
- "- When checking multiple OIDs, separate ranges by commas like '-w 1:10,1:,:20'\n"
- "- Note that only one string and one regex may be checked at present\n"
- "- All evaluation methods other than PR, STR, and SUBSTR expect that the value\n"
- " returned from the SNMP query is an unsigned integer.\n\n",
- DEFAULT_DELIMITER);
+ ("Usage:\n" " %s %s\n"
+ " %s (-h | --help) for detailed help\n"
+ " %s (-V | --version) for version information\n",
+ PROGNAME, OPTIONS, PROGNAME, PROGNAME);
}
+\f
+
char *
clarify_message (char *msg)