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>
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) /* {{{ */
45 for (int i = 0; i < ci->children_num; i++)
47 oconfig_item_t *child = ci->children + i;
49 if (strcasecmp ("CommandFile", child->key) == 0)
50 cf_util_get_string (child, &nagios_command_file);
52 WARNING ("notify_nagios plugin: Ignoring unknown config option \"%s\".",
57 } /* }}} nagios_config */
59 static int nagios_print (char const *buffer) /* {{{ */
61 char const *file = NAGIOS_COMMAND_FILE;
64 struct flock lock = { 0 };
66 if (nagios_command_file != NULL)
67 file = nagios_command_file;
69 fd = open (file, O_WRONLY | O_APPEND);
74 ERROR ("notify_nagios plugin: Opening \"%s\" failed: %s",
75 file, sstrerror (status, errbuf, sizeof (errbuf)));
79 lock.l_type = F_WRLCK;
80 lock.l_whence = SEEK_END;
82 status = fcntl (fd, F_GETLK, &lock);
87 ERROR ("notify_nagios plugin: Failed to acquire write lock on \"%s\": %s",
88 file, sstrerror (status, errbuf, sizeof (errbuf)));
93 status = (int) lseek (fd, 0, SEEK_END);
98 ERROR ("notify_nagios plugin: Seeking to end of \"%s\" failed: %s",
99 file, sstrerror (status, errbuf, sizeof (errbuf)));
104 status = (int) swrite (fd, buffer, strlen (buffer));
109 ERROR ("notify_nagios plugin: Writing to \"%s\" failed: %s",
110 file, sstrerror (status, errbuf, sizeof (errbuf)));
117 } /* }}} int nagios_print */
119 static int nagios_notify (const notification_t *n, /* {{{ */
120 __attribute__((unused)) user_data_t *user_data)
122 char svc_description[4 * DATA_MAX_NAME_LEN];
127 status = format_name (svc_description, (int) sizeof (svc_description),
128 /* host */ "", n->plugin, n->plugin_instance, n->type, n->type_instance);
131 ERROR ("notify_nagios plugin: Formatting service name failed.");
141 code = NAGIOS_WARNING;
144 code = NAGIOS_CRITICAL;
147 code = NAGIOS_UNKNOWN;
151 ssnprintf (buffer, sizeof (buffer),
152 "[%.0f] PROCESS_SERVICE_CHECK_RESULT;%s;%s;%d;%s\n",
153 CDTIME_T_TO_DOUBLE (n->time), n->host, &svc_description[1], code,
156 return nagios_print (buffer);
157 } /* }}} int nagios_notify */
159 void module_register (void)
161 plugin_register_complex_config ("notify_nagios", nagios_config);
162 plugin_register_notification ("notify_nagios", nagios_notify, NULL);
163 } /* void module_register (void) */
165 /* vim: set sw=2 sts=2 ts=8 et : */