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/*
** Zabbix
** Copyright (C) 2001-2014 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
#include "common.h"
#include "sysinfo.h"
#include "zbxjson.h"
static int get_fs_size_stat(const char *fsname, zbx_uint64_t *total, zbx_uint64_t *free,
zbx_uint64_t *used, double *pfree, double *pused)
{
#ifdef HAVE_SYS_STATVFS_H
# define ZBX_STATFS statvfs
# define ZBX_BSIZE f_frsize
#else
# define ZBX_STATFS statfs
# define ZBX_BSIZE f_bsize
#endif
struct ZBX_STATFS s;
if (NULL == fsname || '\0' == *fsname || 0 != ZBX_STATFS(fsname, &s))
return SYSINFO_RET_FAIL;
if (total)
*total = (zbx_uint64_t)s.f_blocks * s.ZBX_BSIZE;
if (free)
*free = (zbx_uint64_t)s.f_bavail * s.ZBX_BSIZE;
if (used)
*used = (zbx_uint64_t)(s.f_blocks - s.f_bfree) * s.ZBX_BSIZE;
if (pfree)
{
if (0 != s.f_blocks - s.f_bfree + s.f_bavail)
*pfree = (double)(100.0 * s.f_bavail) /
(s.f_blocks - s.f_bfree + s.f_bavail);
else
*pfree = 0;
}
if (pused)
{
if (0 != s.f_blocks - s.f_bfree + s.f_bavail)
*pused = 100.0 - (double)(100.0 * s.f_bavail) /
(s.f_blocks - s.f_bfree + s.f_bavail);
else
*pused = 0;
}
return SYSINFO_RET_OK;
}
int VFS_FS_SIZE(AGENT_REQUEST *request, AGENT_RESULT *result)
{
char *fsname, *mode;
zbx_uint64_t total, free, used;
double pfree, pused;
if (2 < request->nparam)
return SYSINFO_RET_FAIL;
fsname = get_rparam(request, 0);
mode = get_rparam(request, 1);
if (SYSINFO_RET_OK != get_fs_size_stat(fsname, &total, &free, &used, &pfree, &pused))
return SYSINFO_RET_FAIL;
if (NULL == mode || '\0' == *mode || 0 == strcmp(mode, "total")) /* default parameter */
SET_UI64_RESULT(result, total);
else if (0 == strcmp(mode, "free"))
SET_UI64_RESULT(result, free);
else if (0 == strcmp(mode, "used"))
SET_UI64_RESULT(result, used);
else if (0 == strcmp(mode, "pfree"))
SET_DBL_RESULT(result, pfree);
else if (0 == strcmp(mode, "pused"))
SET_DBL_RESULT(result, pused);
else
return SYSINFO_RET_FAIL;
return SYSINFO_RET_OK;
}
int VFS_FS_DISCOVERY(AGENT_REQUEST *request, AGENT_RESULT *result)
{
int ret = SYSINFO_RET_FAIL;
char line[MAX_STRING_LEN], *p, *mpoint, *mtype;
FILE *f;
struct zbx_json j;
zbx_json_init(&j, ZBX_JSON_STAT_BUF_LEN);
zbx_json_addarray(&j, ZBX_PROTO_TAG_DATA);
if (NULL != (f = fopen("/proc/mounts", "r")))
{
while (NULL != fgets(line, sizeof(line), f))
{
if (NULL == (p = strchr(line, ' ')))
continue;
mpoint = ++p;
if (NULL == (p = strchr(mpoint, ' ')))
continue;
*p = '\0';
mtype = ++p;
if (NULL == (p = strchr(mtype, ' ')))
continue;
*p = '\0';
zbx_json_addobject(&j, NULL);
zbx_json_addstring(&j, "{#FSNAME}", mpoint, ZBX_JSON_TYPE_STRING);
zbx_json_addstring(&j, "{#FSTYPE}", mtype, ZBX_JSON_TYPE_STRING);
zbx_json_close(&j);
}
zbx_fclose(f);
ret = SYSINFO_RET_OK;
}
zbx_json_close(&j);
SET_STR_RESULT(result, zbx_strdup(NULL, j.buffer));
zbx_json_free(&j);
return ret;
}
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