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diff --git a/plugins/negate.c b/plugins/negate.c
index 874aea14ff6c2958ea701b20ae7a3238cb077cef..8eac722023d2e28f6b7e670dc5e99843b3ede19d 100644 (file)
--- a/plugins/negate.c
+++ b/plugins/negate.c
-/******************************************************************************
-
- 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 2 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, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-@@-<article>
-
-<sect1>
-<title>Quick Reference</title>
-<refentry>
-<refmeta><manvolnum>5<manvolnum></refmeta>
-<refnamdiv>
-<refname>&progname;</refname>
-<refpurpose>&SUMMARY;</refpurpose>
-</refnamdiv>
-</refentry>
-</sect1>
-
-<sect1>
-<title>FAQ</title>
-</sect1>
-
-<sect1>
-<title>Theory, Installation, and Operation</title>
-
-<sect2>
-<title>General Description</title>
-<para>
-&DESCRIPTION;
-</para>
-</sect2>
-
-<sect2>
-<title>Future Enhancements</title>
-<para>ToDo List</para>
-<itemizedlist>
-<listitem>Add option to do regex substitution in output text</listitem>
-</itemizedlist>
-</sect2>-@@
-
-******************************************************************************/
+/*****************************************************************************
+*
+* Nagios negate plugin
+*
+* License: GPL
+* Copyright (c) 2002-2008 Nagios 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 *revision = "$Revision$";
-const char *copyright = "2002-2003";
+const char *copyright = "2002-2008";
const char *email = "nagiosplug-devel@lists.sourceforge.net";
-#define DEFAULT_TIMEOUT 9
+#define DEFAULT_TIMEOUT 11
#include "common.h"
#include "utils.h"
-#include "popen.h"
+#include "utils_cmd.h"
-char *command_line;
+/* char *command_line; */
-int process_arguments (int, char **);
-int validate_arguments (void);
+static const char **process_arguments (int, char **);
+int 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 found = 0, result = STATE_UNKNOWN;
- char *buf;
+ char *buf, *sub;
+ char **command_line;
+ output chld_out, chld_err;
+ int i;
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
- if (process_arguments (argc, argv) == ERROR)
- usage (_("Could not parse arguments\n"));
+ timeout_interval = DEFAULT_TIMEOUT;
+
+ command_line = (char **) process_arguments (argc, argv);
/* Set signal handling and alarm */
if (signal (SIGALRM, timeout_alarm_handler) == SIG_ERR)
(void) alarm ((unsigned) timeout_interval);
- child_process = spopen (command_line);
- if (child_process == NULL)
- die (STATE_UNKNOWN, _("Could not open pipe: %s\n"), command_line);
-
- child_stderr = fdopen (child_stderr_array[fileno (child_process)], "r");
- if (child_stderr == NULL) {
- printf (_("Could not open stderr for %s\n"), command_line);
+ /* 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);
}
-
- buf = malloc(MAX_INPUT_BUFFER);
- while (fgets (buf, MAX_INPUT_BUFFER - 1, child_process)) {
- found++;
- printf ("%s", buf);
+ if (chld_err.lines > 0) {
+ printf ("Error output from command:\n");
+ for (i = 0; i < chld_err.lines; i++) {
+ printf ("%s\n", chld_err.line[i]);
+ }
+ exit (STATE_WARNING);
}
- if (!found)
- die (STATE_UNKNOWN,
- _("%s problem - No data recieved from host\nCMD: %s\n"),\
- argv[0], command_line);
-
- /* close the pipe */
- result = spclose (child_process);
-
- /* WARNING if output found on stderr */
- if (fgets (buf, MAX_INPUT_BUFFER - 1, child_stderr))
- result = max_state (result, STATE_WARNING);
-
- /* close stderr */
- (void) fclose (child_stderr);
+ /* 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 != state[result] &&
+ result >= 0 && result <= 4) {
+ /* 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 */
+ asprintf (&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 == STATE_OK)
- exit (STATE_CRITICAL);
- else if (result == STATE_CRITICAL)
- exit (EXIT_SUCCESS);
- else
+ if (result >= 0 && result <= 4) {
+ exit (state[result]);
+ } else {
exit (result);
+ }
}
-\f
-
-
-/******************************************************************************
-@@-
-<sect2>
-<title>Functions</title>
-
-<sect3>
-<title>process_arguments</title>
-
-<para>This function parses the command line into the needed
-variables.</para>
-<para>Aside from the standard 'help' and 'version' options, there
-is a only a 'timeout' option.</para>
-
-</sect3>
--@@
-******************************************************************************/
/* process command-line arguments */
-int
+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:",
- longopts, &option);
+ c = getopt_long (argc, argv, "+hVt:T:o:w:c:u:s", longopts, &option);
if (c == -1 || c == EOF)
break;
switch (c) {
case '?': /* help */
- usage3 (_("Unknown argument"), optopt);
+ usage5 ();
break;
case 'h': /* help */
print_help ();
exit (EXIT_SUCCESS);
break;
case 'V': /* version */
- print_revision (progname, revision);
+ print_revision (progname, NP_VERSION);
exit (EXIT_SUCCESS);
case 't': /* timeout period */
if (!is_integer (optarg))
- usage2 (_("Timeout Interval must be an 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 = 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] = 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] = 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] = 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] = 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;
}
}
- asprintf (&command_line, "%s", argv[optind]);
- for (c = optind+1; c < argc; c++) {
- asprintf (&command_line, "%s %s", command_line, argv[c]);
+ validate_arguments (&argv[optind]);
+
+ if (permute) { /* No [owcu] switch specified, default to this */
+ state[STATE_OK] = STATE_CRITICAL;
+ state[STATE_CRITICAL] = STATE_OK;
}
- return validate_arguments ();
+ return (const char **) &argv[optind];
}
-/******************************************************************************
-@@-
-<sect3>
-<title>validate_arguments</title>
+int
+validate_arguments (char **command_line)
+{
+ if (command_line[0] == NULL)
+ usage4 (_("Could not parse arguments"));
-<para>No validation is currently done.</para>
+ if (strncmp(command_line[0],"/",1) != 0 && strncmp(command_line[0],"./",2) != 0)
+ usage4 (_("Require path to command"));
+}
-</sect3>
--@@
-******************************************************************************/
int
-validate_arguments ()
+translate_state (char *state_text)
{
- if (command_line == NULL)
- return ERROR;
- return STATE_OK;
+ char *temp_ptr;
+ for (temp_ptr = state_text; *temp_ptr; temp_ptr++) {
+ *temp_ptr = toupper(*temp_ptr);
+ }
+ if (!strcmp(state_text,"OK") || !strcmp(state_text,"0"))
+ return STATE_OK;
+ if (!strcmp(state_text,"WARNING") || !strcmp(state_text,"1"))
+ return STATE_WARNING;
+ if (!strcmp(state_text,"CRITICAL") || !strcmp(state_text,"2"))
+ return STATE_CRITICAL;
+ if (!strcmp(state_text,"UNKNOWN") || !strcmp(state_text,"3"))
+ return STATE_UNKNOWN;
+ return ERROR;
}
-/******************************************************************************
-@@-
-</sect2>
-</sect1>
-</article>
--@@
-******************************************************************************/
-
-
-
-
-
-\f
void
print_help (void)
{
- print_revision (progname, revision);
+ print_revision (progname, NP_VERSION);
+
+ printf (COPYRIGHT, copyright, email);
- 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 (_("\
-Negates the status of a plugin (returns OK for CRITICAL, and vice-versa).\n\
-\n"));
+ printf ("\n\n");
print_usage ();
printf (_(UT_HELP_VRSN));
- printf (_(UT_TIMEOUT), DEFAULT_TIMEOUT);
-
- printf (_("\
- [keep timeout than the plugin timeout to retain CRITICAL status]\n"));
-
- printf (_("\
- negate \"/usr/local/nagios/libexec/check_ping -H host\"\n\
- Run check_ping and invert result. Must use full path to plugin\n\
- negate \"/usr/local/nagios/libexec/check_procs -a 'vi negate.c'\"\n\
- Use single quotes if you need to retain spaces\n"));
-
- printf (_("\
-This plugin is a wrapper to take the output of another plugin and invert it.\n\
-If the wrapped plugin returns STATE_OK, the wrapper will return STATE_CRITICAL.\n\
-If the wrapped plugin returns STATE_CRITICAL, the wrapper will return STATE_OK.\n\
-Otherwise, the output state of the wrapped plugin is unchanged.\n"));
+ printf (_(UT_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 (_("Usage: %s [-t timeout] <definition of wrapped plugin>\n"),
- progname);
- printf (_(UT_HLP_VRS), progname, progname);
+ printf (_("Usage:"));
+ printf ("%s [-t timeout] [-Towcu STATE] [-s] <definition of wrapped plugin>\n", progname);
}