2 * collectd - src/notify_nagios.c
3 * Copyright (C) 2015 Florian octo Forster
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
24 * Florian octo Forster <octo at collectd.org>
30 #include "configfile.h"
33 #define NAGIOS_WARNING 1
34 #define NAGIOS_CRITICAL 2
35 #define NAGIOS_UNKNOWN 3
37 #ifndef NAGIOS_COMMAND_FILE
38 # define NAGIOS_COMMAND_FILE "/usr/local/nagios/var/rw/nagios.cmd"
41 static char *nagios_command_file;
43 static int nagios_config (oconfig_item_t *ci) /* {{{ */
47 for (i = 0; i < ci->children_num; i++)
49 oconfig_item_t *child = ci->children + i;
51 if (strcasecmp ("CommandFile", child->key) == 0)
52 cf_util_get_string (child, &nagios_command_file);
54 WARNING ("notify_nagios plugin: Ignoring unknown config option \"%s\".",
59 } /* }}} nagios_config */
61 static int nagios_print (char const *buffer) /* {{{ */
63 char const *file = NAGIOS_COMMAND_FILE;
66 struct flock lock = { 0 };
68 if (nagios_command_file != NULL)
69 file = nagios_command_file;
71 fd = open (file, O_WRONLY | O_APPEND);
76 ERROR ("notify_nagios plugin: Opening \"%s\" failed: %s",
77 file, sstrerror (status, errbuf, sizeof (errbuf)));
81 lock.l_type = F_WRLCK;
82 lock.l_whence = SEEK_END;
84 status = fcntl (fd, F_GETLK, &lock);
89 ERROR ("notify_nagios plugin: Failed to acquire write lock on \"%s\": %s",
90 file, sstrerror (status, errbuf, sizeof (errbuf)));
95 status = (int) lseek (fd, 0, SEEK_END);
100 ERROR ("notify_nagios plugin: Seeking to end of \"%s\" failed: %s",
101 file, sstrerror (status, errbuf, sizeof (errbuf)));
106 status = (int) swrite (fd, buffer, strlen (buffer));
111 ERROR ("notify_nagios plugin: Writing to \"%s\" failed: %s",
112 file, sstrerror (status, errbuf, sizeof (errbuf)));
119 } /* }}} int nagios_print */
121 static int nagios_notify (const notification_t *n, /* {{{ */
122 __attribute__((unused)) user_data_t *user_data)
124 char svc_description[4 * DATA_MAX_NAME_LEN];
129 status = format_name (svc_description, (int) sizeof (svc_description),
130 /* host */ "", n->plugin, n->plugin_instance, n->type, n->type_instance);
133 ERROR ("notify_nagios plugin: Formatting service name failed.");
143 code = NAGIOS_WARNING;
146 code = NAGIOS_CRITICAL;
149 code = NAGIOS_UNKNOWN;
153 ssnprintf (buffer, sizeof (buffer),
154 "[%.0f] PROCESS_SERVICE_CHECK_RESULT;%s;%s;%d;%s\n",
155 CDTIME_T_TO_DOUBLE (n->time), n->host, &svc_description[1], code,
158 return nagios_print (buffer);
159 } /* }}} int nagios_notify */
161 void module_register (void)
163 plugin_register_complex_config ("notify_nagios", nagios_config);
164 plugin_register_notification ("notify_nagios", nagios_notify, NULL);
165 } /* void module_register (void) */
167 /* vim: set sw=2 sts=2 ts=8 et : */