69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
/***************************************************************************
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* Copyright (C) 06/2006 by Olaf Rempel *
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* razzor@kopf-tisch.de *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include "plugins.h"
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struct sammler_plugin plugin;
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static char *ds_def[] = {
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"DS:entropy:GAUGE:%d:0:U",
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NULL
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};
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static char ** get_ds(int ds_id)
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{
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return ds_def;
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}
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static void probe(void)
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{
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FILE *fp;
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char buffer[32];
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char *val[1];
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fp = fopen("/proc/sys/kernel/random/entropy_avail", "r");
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if (fp == NULL) {
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log_print(LOG_WARN, "plugin random");
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return;
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}
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if (fgets(buffer, sizeof(buffer), fp) == NULL) {
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log_print(LOG_WARN, "plugin random");
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fclose(fp);
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return;
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}
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fclose(fp);
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if (strsplit(buffer, val, 1) != 1)
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return;
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probe_submit(&plugin, "random.rrd", 0, "%s", val[0]);
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}
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struct sammler_plugin plugin = {
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.name = "random",
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.version = 1,
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.probe = &probe,
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.get_ds = &get_ds,
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};
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