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
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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++) {
46 oconfig_item_t *child = ci->children + i;
48 if (strcasecmp("CommandFile", child->key) == 0)
49 cf_util_get_string(child, &nagios_command_file);
51 WARNING("notify_nagios plugin: Ignoring unknown config option \"%s\".",
56 } /* }}} nagios_config */
58 static int nagios_print(char const *buffer) /* {{{ */
60 char const *file = NAGIOS_COMMAND_FILE;
63 struct flock lock = {0};
65 if (nagios_command_file != NULL)
66 file = nagios_command_file;
68 fd = open(file, O_WRONLY | O_APPEND);
71 ERROR("notify_nagios plugin: Opening \"%s\" failed: %s", file, STRERRNO);
75 lock.l_type = F_WRLCK;
76 lock.l_whence = SEEK_END;
78 status = fcntl(fd, F_GETLK, &lock);
81 ERROR("notify_nagios plugin: Failed to acquire write lock on \"%s\": %s",
87 status = (int)lseek(fd, 0, SEEK_END);
90 ERROR("notify_nagios plugin: Seeking to end of \"%s\" failed: %s", file,
96 status = (int)swrite(fd, buffer, strlen(buffer));
99 ERROR("notify_nagios plugin: Writing to \"%s\" failed: %s", file, STRERRNO);
106 } /* }}} int nagios_print */
108 static int nagios_notify(const notification_t *n, /* {{{ */
109 __attribute__((unused)) user_data_t *user_data) {
110 char svc_description[4 * DATA_MAX_NAME_LEN];
115 status = format_name(svc_description, (int)sizeof(svc_description),
116 /* host */ "", n->plugin, n->plugin_instance, n->type,
119 ERROR("notify_nagios plugin: Formatting service name failed.");
123 switch (n->severity) {
128 code = NAGIOS_WARNING;
131 code = NAGIOS_CRITICAL;
134 code = NAGIOS_UNKNOWN;
138 snprintf(buffer, sizeof(buffer),
139 "[%.0f] PROCESS_SERVICE_CHECK_RESULT;%s;%s;%d;%s\n",
140 CDTIME_T_TO_DOUBLE(n->time), n->host, &svc_description[1], code,
143 return nagios_print(buffer);
144 } /* }}} int nagios_notify */
146 void module_register(void) {
147 plugin_register_complex_config("notify_nagios", nagios_config);
148 plugin_register_notification("notify_nagios", nagios_notify, NULL);
149 } /* void module_register (void) */