mirror of
https://github.com/monitoring-plugins/monitoring-plugins.git
synced 2026-05-28 04:35:40 -04:00
wrapper to invert return status
git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@94 f882894a-f735-0410-b71e-b25c423dba1c
This commit is contained in:
Karl DeBisschop
parent
71ae1ba238
commit
078651b1bd
1 changed files with 299 additions and 0 deletions
299
plugins/negate.c
Normal file
299
plugins/negate.c
Normal file
|
|
@ -0,0 +1,299 @@
|
|||
/******************************************************************************
|
||||
*
|
||||
* Program: Inverting plugin wrapper for Nagios
|
||||
* License: GPL
|
||||
*
|
||||
* License Information:
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* $Id$
|
||||
*
|
||||
*****************************************************************************/
|
||||
|
||||
#define PROGNAME "negate"
|
||||
#define REVISION "$Revision$"
|
||||
#define COPYRIGHT "2002"
|
||||
#define AUTHOR "Karl DeBisschop"
|
||||
#define EMAIL "kdebisschop@users.sourceforge.net"
|
||||
#define SUMMARY "Negates the status of a plugin (returns OK for CRITICAL, and vice-versa).\n"
|
||||
|
||||
#define OPTIONS "\
|
||||
\[-t timeout] <definition of wrapped plugin>"
|
||||
|
||||
#define LONGOPTIONS "\
|
||||
-t, --timeout=INTEGER\n\
|
||||
Terminate test if timeout limit is exceeded (default: %d)\n\
|
||||
[keep this less than the plugin timeout to retain CRITICAL status]\n"
|
||||
|
||||
#define DESCRIPTION "\
|
||||
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"
|
||||
|
||||
#define DEFAULT_TIMEOUT 9
|
||||
|
||||
#include "common.h"
|
||||
#include "utils.h"
|
||||
#include "popen.h"
|
||||
|
||||
char *command_line;
|
||||
|
||||
static int process_arguments (int, char **);
|
||||
static int validate_arguments (void);
|
||||
static void print_usage (void);
|
||||
static void print_help (void);
|
||||
|
||||
/******************************************************************************
|
||||
|
||||
The (psuedo?)literate programming XML is contained within \@\@\- <XML> \-\@\@
|
||||
tags in the comments. With in the tags, the XML is assembled sequentially.
|
||||
You can define entities in tags. You also have all the #defines available as
|
||||
entities.
|
||||
|
||||
Please note that all tags must be lowercase to use the DocBook XML DTD.
|
||||
|
||||
@@-<article>
|
||||
|
||||
<sect1>
|
||||
<title>Quick Reference</title>
|
||||
<!-- The refentry forms a manpage -->
|
||||
<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>
|
||||
|
||||
|
||||
<sect2>
|
||||
<title>Functions</title>
|
||||
-@@
|
||||
******************************************************************************/
|
||||
|
||||
int
|
||||
main (int argc, char **argv)
|
||||
{
|
||||
int found = 0, result = STATE_UNKNOWN;
|
||||
char input_buffer[MAX_INPUT_BUFFER];
|
||||
|
||||
if (process_arguments (argc, argv) == ERROR)
|
||||
usage ("Could not parse arguments");
|
||||
|
||||
/* Set signal handling and alarm */
|
||||
if (signal (SIGALRM, timeout_alarm_handler) == SIG_ERR) {
|
||||
printf ("Cannot catch SIGALRM");
|
||||
return STATE_UNKNOWN;
|
||||
}
|
||||
alarm (timeout_interval);
|
||||
|
||||
child_process = spopen (command_line);
|
||||
if (child_process == NULL) {
|
||||
printf ("Could not open pipe: %s\n", command_line);
|
||||
exit (STATE_UNKNOWN);
|
||||
}
|
||||
|
||||
child_stderr = fdopen (child_stderr_array[fileno (child_process)], "r");
|
||||
if (child_stderr == NULL) {
|
||||
printf ("Could not open stderr for %s\n", command_line);
|
||||
}
|
||||
|
||||
while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) {
|
||||
found++;
|
||||
if (index (input_buffer, '\n')) {
|
||||
input_buffer[strcspn (input_buffer, "\n")] = 0;
|
||||
printf ("%s\n", input_buffer);
|
||||
}
|
||||
else {
|
||||
printf ("%s\n", input_buffer);
|
||||
}
|
||||
}
|
||||
|
||||
if (!found) {
|
||||
printf ("%s problem - No data recieved from host\nCMD: %s\n", argv[0],
|
||||
command_line);
|
||||
exit (STATE_UNKNOWN);
|
||||
}
|
||||
|
||||
/* close the pipe */
|
||||
result = spclose (child_process);
|
||||
|
||||
/* WARNING if output found on stderr */
|
||||
if (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr))
|
||||
result = max_state (result, STATE_WARNING);
|
||||
|
||||
/* close stderr */
|
||||
(void) fclose (child_stderr);
|
||||
|
||||
if (result == STATE_OK)
|
||||
return STATE_CRITICAL;
|
||||
else if (result == STATE_CRITICAL)
|
||||
return STATE_OK;
|
||||
else
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
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
|
||||
("\nOptions:\n" LONGOPTIONS "\n" DESCRIPTION "\n",
|
||||
DEFAULT_TIMEOUT);
|
||||
support ();
|
||||
}
|
||||
|
||||
void
|
||||
print_usage (void)
|
||||
{
|
||||
printf ("Usage:\n" " %s %s\n"
|
||||
#ifdef HAVE_GETOPT_H
|
||||
" %s (-h | --help) for detailed help\n"
|
||||
" %s (-V | --version) for version information\n",
|
||||
#else
|
||||
" %s -h for detailed help\n"
|
||||
" %s -V for version information\n",
|
||||
#endif
|
||||
PROGNAME, OPTIONS, PROGNAME, PROGNAME);
|
||||
}
|
||||
|
||||
|
||||
|
||||
/******************************************************************************
|
||||
@@-
|
||||
<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.No validation is currently done.</para>
|
||||
|
||||
</sect3>
|
||||
-@@
|
||||
******************************************************************************/
|
||||
|
||||
/* process command-line arguments */
|
||||
int
|
||||
process_arguments (int argc, char **argv)
|
||||
{
|
||||
int c;
|
||||
|
||||
#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'},
|
||||
{0, 0, 0, 0}
|
||||
};
|
||||
#endif
|
||||
|
||||
while (1) {
|
||||
#ifdef HAVE_GETOPT_H
|
||||
c = getopt_long (argc, argv, "+?hVt:",
|
||||
long_options, &option_index);
|
||||
#else
|
||||
c = getopt (argc, argv, "+?hVt:");
|
||||
#endif
|
||||
if (c == -1 || c == EOF)
|
||||
break;
|
||||
|
||||
switch (c) {
|
||||
case '?': /* help */
|
||||
usage2 ("Unknown argument", optarg);
|
||||
case 'h': /* help */
|
||||
print_help ();
|
||||
exit (STATE_OK);
|
||||
case 'V': /* version */
|
||||
print_revision (PROGNAME, REVISION);
|
||||
exit (STATE_OK);
|
||||
case 't': /* timeout period */
|
||||
if (!is_integer (optarg))
|
||||
usage2 ("Timeout Interval must be an integer", optarg);
|
||||
timeout_interval = atoi (optarg);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
command_line = strscpy (command_line, argv[optind]);
|
||||
for (c = optind+1; c <= argc; c++) {
|
||||
command_line = ssprintf (command_line, "%s %s", command_line, argv[c]);
|
||||
}
|
||||
|
||||
return validate_arguments ();
|
||||
}
|
||||
|
||||
|
||||
/******************************************************************************
|
||||
@@-
|
||||
<sect3>
|
||||
<title>validate_arguments</title>
|
||||
|
||||
<para>No validation is currently done.</para>
|
||||
|
||||
</sect3>
|
||||
-@@
|
||||
******************************************************************************/
|
||||
|
||||
int
|
||||
validate_arguments ()
|
||||
{
|
||||
return OK;
|
||||
}
|
||||
|
||||
|
||||
/******************************************************************************
|
||||
@@-
|
||||
</sect2>
|
||||
</sect1>
|
||||
</article>
|
||||
-@@
|
||||
******************************************************************************/
|
||||
Loading…
Reference in a new issue