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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 11:48:22 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 11:48:22 +0000
commit7373ce3d6988706388f136e1c06afd20a3e8d5be (patch)
treee9ae5af7d102667e5706187646db45de8238e8c4 /plugins/negate.c
parentInitial commit. (diff)
downloadmonitoring-plugins-7373ce3d6988706388f136e1c06afd20a3e8d5be.tar.xz
monitoring-plugins-7373ce3d6988706388f136e1c06afd20a3e8d5be.zip
Adding upstream version 2.3.5.upstream/2.3.5upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'plugins/negate.c')
-rw-r--r--plugins/negate.c275
1 files changed, 275 insertions, 0 deletions
diff --git a/plugins/negate.c b/plugins/negate.c
new file mode 100644
index 0000000..50f62d3
--- /dev/null
+++ b/plugins/negate.c
@@ -0,0 +1,275 @@
+/*****************************************************************************
+*
+* Monitoring negate plugin
+*
+* License: GPL
+* Copyright (c) 2002-2008 Monitoring Plugins Development Team
+*
+* Description:
+*
+* This file contains the negate plugin
+*
+* Negates the status of a plugin (returns OK for CRITICAL, and vice-versa).
+* Can also perform custom state switching.
+*
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program. If not, see <http://www.gnu.org/licenses/>.
+*
+*
+*****************************************************************************/
+
+const char *progname = "negate";
+const char *copyright = "2002-2008";
+const char *email = "devel@monitoring-plugins.org";
+
+#define DEFAULT_TIMEOUT 11
+
+#include "common.h"
+#include "utils.h"
+#include "utils_cmd.h"
+
+#include <ctype.h>
+
+/* char *command_line; */
+
+static const char **process_arguments (int, char **);
+void validate_arguments (char **);
+void print_help (void);
+void print_usage (void);
+int subst_text = FALSE;
+
+static int state[4] = {
+ STATE_OK,
+ STATE_WARNING,
+ STATE_CRITICAL,
+ STATE_UNKNOWN,
+};
+
+int
+main (int argc, char **argv)
+{
+ int result = STATE_UNKNOWN;
+ char *sub;
+ char **command_line;
+ output chld_out, chld_err;
+ int i;
+
+ setlocale (LC_ALL, "");
+ bindtextdomain (PACKAGE, LOCALEDIR);
+ textdomain (PACKAGE);
+
+ timeout_interval = DEFAULT_TIMEOUT;
+
+ command_line = (char **) process_arguments (argc, argv);
+
+ /* Set signal handling and alarm */
+ if (signal (SIGALRM, timeout_alarm_handler) == SIG_ERR)
+ die (STATE_UNKNOWN, _("Cannot catch SIGALRM"));
+
+ (void) alarm ((unsigned) timeout_interval);
+
+ /* catch when the command is quoted */
+ if(command_line[1] == NULL) {
+ result = cmd_run (command_line[0], &chld_out, &chld_err, 0);
+ } else {
+ result = cmd_run_array (command_line, &chld_out, &chld_err, 0);
+ }
+ if (chld_err.lines > 0) {
+ for (i = 0; i < chld_err.lines; i++) {
+ fprintf (stderr, "%s\n", chld_err.line[i]);
+ }
+ }
+
+ /* Return UNKNOWN or worse if no output is returned */
+ if (chld_out.lines == 0)
+ die (max_state_alt (result, STATE_UNKNOWN), _("No data returned from command\n"));
+
+ for (i = 0; i < chld_out.lines; i++) {
+ if (subst_text && result >= 0 && result <= 4 && result != state[result]) {
+ /* Loop over each match found */
+ while ((sub = strstr (chld_out.line[i], state_text (result)))) {
+ /* Terminate the first part and skip over the string we'll substitute */
+ *sub = '\0';
+ sub += strlen (state_text (result));
+ /* then put everything back together */
+ xasprintf (&chld_out.line[i], "%s%s%s", chld_out.line[i], state_text (state[result]), sub);
+ }
+ }
+ printf ("%s\n", chld_out.line[i]);
+ }
+
+ if (result >= 0 && result <= 4) {
+ exit (state[result]);
+ } else {
+ exit (result);
+ }
+}
+
+
+/* process command-line arguments */
+static const char **
+process_arguments (int argc, char **argv)
+{
+ int c;
+ int permute = TRUE;
+
+ int option = 0;
+ static struct option longopts[] = {
+ {"help", no_argument, 0, 'h'},
+ {"version", no_argument, 0, 'V'},
+ {"timeout", required_argument, 0, 't'},
+ {"timeout-result", required_argument, 0, 'T'},
+ {"ok", required_argument, 0, 'o'},
+ {"warning", required_argument, 0, 'w'},
+ {"critical", required_argument, 0, 'c'},
+ {"unknown", required_argument, 0, 'u'},
+ {"substitute", no_argument, 0, 's'},
+ {0, 0, 0, 0}
+ };
+
+ while (1) {
+ c = getopt_long (argc, argv, "+hVt:T:o:w:c:u:s", longopts, &option);
+
+ if (c == -1 || c == EOF)
+ break;
+
+ switch (c) {
+ case '?': /* help */
+ usage5 ();
+ break;
+ case 'h': /* help */
+ print_help ();
+ exit (EXIT_SUCCESS);
+ break;
+ case 'V': /* version */
+ print_revision (progname, NP_VERSION);
+ exit (EXIT_SUCCESS);
+ case 't': /* timeout period */
+ if (!is_integer (optarg))
+ usage2 (_("Timeout interval must be a positive integer"), optarg);
+ else
+ timeout_interval = atoi (optarg);
+ break;
+ case 'T': /* Result to return on timeouts */
+ if ((timeout_state = mp_translate_state(optarg)) == ERROR)
+ usage4 (_("Timeout result must be a valid state name (OK, WARNING, CRITICAL, UNKNOWN) or integer (0-3)."));
+ break;
+ case 'o': /* replacement for OK */
+ if ((state[STATE_OK] = mp_translate_state(optarg)) == ERROR)
+ usage4 (_("Ok must be a valid state name (OK, WARNING, CRITICAL, UNKNOWN) or integer (0-3)."));
+ permute = FALSE;
+ break;
+
+ case 'w': /* replacement for WARNING */
+ if ((state[STATE_WARNING] = mp_translate_state(optarg)) == ERROR)
+ usage4 (_("Warning must be a valid state name (OK, WARNING, CRITICAL, UNKNOWN) or integer (0-3)."));
+ permute = FALSE;
+ break;
+ case 'c': /* replacement for CRITICAL */
+ if ((state[STATE_CRITICAL] = mp_translate_state(optarg)) == ERROR)
+ usage4 (_("Critical must be a valid state name (OK, WARNING, CRITICAL, UNKNOWN) or integer (0-3)."));
+ permute = FALSE;
+ break;
+ case 'u': /* replacement for UNKNOWN */
+ if ((state[STATE_UNKNOWN] = mp_translate_state(optarg)) == ERROR)
+ usage4 (_("Unknown must be a valid state name (OK, WARNING, CRITICAL, UNKNOWN) or integer (0-3)."));
+ permute = FALSE;
+ break;
+ case 's': /* Substitute status text */
+ subst_text = TRUE;
+ break;
+ }
+ }
+
+ validate_arguments (&argv[optind]);
+
+ if (permute) { /* No [owcu] switch specified, default to this */
+ state[STATE_OK] = STATE_CRITICAL;
+ state[STATE_CRITICAL] = STATE_OK;
+ }
+
+ return (const char **) &argv[optind];
+}
+
+
+void
+validate_arguments (char **command_line)
+{
+ if (command_line[0] == NULL)
+ usage4 (_("Could not parse arguments"));
+
+ if (strncmp(command_line[0],"/",1) != 0 && strncmp(command_line[0],"./",2) != 0)
+ usage4 (_("Require path to command"));
+}
+
+
+void
+print_help (void)
+{
+ print_revision (progname, NP_VERSION);
+
+ printf (COPYRIGHT, copyright, email);
+
+ printf ("%s\n", _("Negates the status of a plugin (returns OK for CRITICAL and vice-versa)."));
+ printf ("%s\n", _("Additional switches can be used to control which state becomes what."));
+
+ printf ("\n\n");
+
+ print_usage ();
+
+ printf (UT_HELP_VRSN);
+
+ printf (UT_PLUG_TIMEOUT, timeout_interval);
+ printf (" %s\n", _("Keep timeout longer than the plugin timeout to retain CRITICAL status."));
+ printf (" -T, --timeout-result=STATUS\n");
+ printf (" %s\n", _("Custom result on Negate timeouts; see below for STATUS definition\n"));
+
+ printf(" -o, --ok=STATUS\n");
+ printf(" -w, --warning=STATUS\n");
+ printf(" -c, --critical=STATUS\n");
+ printf(" -u, --unknown=STATUS\n");
+ printf(_(" STATUS can be 'OK', 'WARNING', 'CRITICAL' or 'UNKNOWN' without single\n"));
+ printf(_(" quotes. Numeric values are accepted. If nothing is specified, permutes\n"));
+ printf(_(" OK and CRITICAL.\n"));
+ printf(" -s, --substitute\n");
+ printf(_(" Substitute output text as well. Will only substitute text in CAPITALS\n"));
+
+ printf ("\n");
+ printf ("%s\n", _("Examples:"));
+ printf (" %s\n", "negate /usr/local/nagios/libexec/check_ping -H host");
+ printf (" %s\n", _("Run check_ping and invert result. Must use full path to plugin"));
+ printf (" %s\n", "negate -w OK -c UNKNOWN /usr/local/nagios/libexec/check_procs -a 'vi negate.c'");
+ printf (" %s\n", _("This will return OK instead of WARNING and UNKNOWN instead of CRITICAL"));
+ printf ("\n");
+ printf ("%s\n", _("Notes:"));
+ printf (" %s\n", _("This plugin is a wrapper to take the output of another plugin and invert it."));
+ printf (" %s\n", _("The full path of the plugin must be provided."));
+ printf (" %s\n", _("If the wrapped plugin returns OK, the wrapper will return CRITICAL."));
+ printf (" %s\n", _("If the wrapped plugin returns CRITICAL, the wrapper will return OK."));
+ printf (" %s\n", _("Otherwise, the output state of the wrapped plugin is unchanged."));
+ printf ("\n");
+ printf (" %s\n", _("Using timeout-result, it is possible to override the timeout behaviour or a"));
+ printf (" %s\n", _("plugin by setting the negate timeout a bit lower."));
+
+ printf (UT_SUPPORT);
+}
+
+
+
+void
+print_usage (void)
+{
+ printf ("%s\n", _("Usage:"));
+ printf ("%s [-t timeout] [-Towcu STATE] [-s] <definition of wrapped plugin>\n", progname);
+}