Zabbix

/*

** Zabbix

** Copyright (C) 2001-2023 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 "inodes.h"

#include "../sysinfo.h"

​

int get_fs_inode_stat(const char *fs, zbx_uint64_t *itotal, zbx_uint64_t *ifree, zbx_uint64_t *iused, double *pfree,

        double *pused, const char *mode, char **error)

{

#ifdef HAVE_SYS_STATVFS_H

#   define ZBX_STATFS   statvfs

#   define ZBX_FFREE    f_favail

#else

#   define ZBX_STATFS   statfs

#   define ZBX_FFREE    f_ffree

#endif

​

#define get_string(field)   #field

#define validate(error, structure, field)                               \

                                                    \

do                                                  \

{                                                   \

    if (__UINT64_C(0xffffffffffffffff) == structure.field)                      \

    {                                               \

        error =  zbx_strdup(NULL, "Cannot obtain filesystem information: value of "     \

                get_string(field) " is unknown.");                  \

        return SYSINFO_RET_FAIL;                                \

    }                                               \

}                                                   \

while(0)

    zbx_uint64_t        total;

    struct ZBX_STATFS   s;

​

    if (0 != ZBX_STATFS(fs, &s))

    {

        *error = zbx_dsprintf(NULL, "Cannot obtain filesystem information: %s", zbx_strerror(errno));

        return SYSINFO_RET_FAIL;

    }

​

    validate(*error, s, f_files);

    *itotal = (zbx_uint64_t)s.f_files;

​

    validate(*error, s, ZBX_FFREE);

    *ifree = (zbx_uint64_t)s.ZBX_FFREE;

​

    validate(*error, s, f_ffree);

    *iused =  (zbx_uint64_t)(s.f_files - s.f_ffree);

​

    total = s.f_files;

#ifdef HAVE_SYS_STATVFS_H

    validate(*error, s, f_favail);

    total -= s.f_ffree - s.f_favail;

#endif

    if (0 != total)

    {

        *pfree = (100.0 *  s.ZBX_FFREE) / total;

        *pused = (100.0 * (total - s.ZBX_FFREE)) / total;

    }

    else if (NULL != mode && (0 == strcmp(mode, "pfree") || 0 == strcmp(mode, "pused")))

    {

        *pfree = 100.0;

        *pused = 0.0;

    }

​

    return SYSINFO_RET_OK;

#undef ZBX_STATFS

#undef ZBX_FFREE

#undef validate

#undef get_string

}

​

static int  vfs_fs_inode_local(AGENT_REQUEST *request, AGENT_RESULT *result)

{

    char            *fsname, *mode, *error;

    zbx_uint64_t        total, free, used;