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output_nagios.c
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output_nagios.c
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/*
* (C) 2010-2011 Alibaba Group Holding Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include <fcntl.h>
#include "tsar.h"
#define PRE_RECORD_FILE "/tmp/.tsar.tmp"
void
output_nagios()
{
int i = 0, j = 0, k = 0, l = 0, result = 0, now_time;
char output[LEN_4096] = {0};
char output_err[LEN_4096] = {0};
char s_time[LEN_64] = {0};
char host_name[LEN_64] = {0};
struct module *mod;
/* if cycle time ok*/
now_time = statis.cur_time - statis.cur_time%60;
if ((*conf.cycle_time) == 0 || now_time%*(conf.cycle_time) != 0) {
return;
}
/* get hostname */
if (0 != gethostname(host_name, sizeof(host_name))) {
do_debug(LOG_FATAL, "send to nagios: gethostname err, errno=%d \n", errno);
}
while (host_name[i]) {
if (!isprint(host_name[i++])) {
host_name[i-1] = '\0';
break;
}
}
/* update module parameter */
conf.print_merge = MERGE_NOT;
/* get st_array */
if (get_st_array_from_file(0)) {
return;
}
/* only output from output_nagios_mod */
reload_modules(conf.output_nagios_mod);
sprintf(s_time, "%ld", time(NULL));
/* print summary data */
for (i = 0; i < statis.total_mod_num; i++) {
mod = &mods[i];
if (!mod->enable) {
continue;
} else {
if (!mod->st_flag) {
printf("name %s\n", mod->name);
printf("do nothing\n");
} else {
char opt[LEN_32];
char check[LEN_64];
char *n_record = strdup(mod->record);
char *token = strtok(n_record, ITEM_SPLIT);
char *s_token;
double *st_array;
struct mod_info *info = mod->info;
j = 0;
/* get mod_name.(item_name).col_name value */
while (token) {
memset(check, 0, sizeof(check));
strcat(check, mod->name + 4);
strcat(check, ".");
s_token = strstr(token, ITEM_SPSTART);
/* multi item */
if (s_token){
memset(opt, 0, sizeof(opt));
strncat(opt, token, s_token - token);
strcat(check, opt);
strcat(check, ".");
}
/* get value */
st_array = &mod->st_array[j * mod->n_col];
token = strtok(NULL, ITEM_SPLIT);
j++;
for (k = 0; k < mod->n_col; k++) {
char *p;
char check_item[LEN_64];
memset(check_item, 0, LEN_64);
memcpy(check_item, check, LEN_64);
p = info[k].hdr;
while (*p == ' ') {
p++;
}
strcat(check_item, p);
for (l = 0; l < conf.mod_num; l++){
/* cmp tsar item with naigos item*/
if (!strcmp(conf.check_name[l], check_item)) {
char value[LEN_32];
memset(value, 0, sizeof(value));
sprintf(value, "%0.2f", st_array[k]);
strcat(output, check_item);
strcat(output, "=");
strcat(output, value);
strcat(output, " ");
if (conf.cmin[l] != 0 && st_array[k] >= conf.cmin[l]) {
if (conf.cmax[l] == 0 || (conf.cmax[l] != 0 && st_array[k] <= conf.cmax[l])) {
result = 2;
strcat(output_err, check_item);
strcat(output_err, "=");
strcat(output_err, value);
strcat(output_err, " ");
continue;
}
}
if (conf.wmin[l] != 0 && st_array[k] >= conf.wmin[l]) {
if (conf.wmax[l] == 0 || (conf.wmax[l] != 0 && st_array[k] <= conf.wmax[l]) ) {
if (result != 2) {
result = 1;
}
strcat(output_err, check_item);
strcat(output_err, "=");
strcat(output_err, value);
strcat(output_err, " ");
}
}
}
}
}
}
}
}
}
if (!strcmp(output_err, "")) {
strcat(output_err, "OK");
}
/* send to nagios server*/
char nagios_cmd[LEN_1024];
sprintf(nagios_cmd, "echo \"%s;tsar;%d;%s|%s\"|%s -H %s -p %d -to 10 -d \";\" -c %s", host_name, result, output_err, output, conf.send_nsca_cmd, conf.server_addr, *(conf.server_port), conf.send_nsca_conf);
do_debug(LOG_DEBUG, "send to naigos:%s\n", nagios_cmd);
if (system(nagios_cmd) != 0) {
do_debug(LOG_WARN, "nsca run error:%s\n", nagios_cmd);
}
printf("%s\n", nagios_cmd);
}