Zabbix

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** 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 Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

#include "zbxsysinfo.h"

#include "../sysinfo.h"

​

#include "zbxstr.h"

#include "zbxjson.h"

#include "zbxalgo.h"

#include "zbxlog.h"

​

typedef struct

{

    char        *fsname;

    char        *fstype;

    char        *fslabel;

    char        *fsdrivetype;

    zbx_uint64_t    total;

    zbx_uint64_t    not_used;

    zbx_uint64_t    used;

    double      pfree;

    double      pused;

}

zbx_wmpoint_t;

​

​

static wchar_t  *zbx_wcsdup2(const char *filename, int line, wchar_t *old, const wchar_t *str)

{

    wchar_t *ptr = NULL;

​

    zbx_free(old);

​

    for (int retry = 10; 0 < retry && NULL == ptr; ptr = wcsdup(str), retry--)

        ;

​

    if (NULL != ptr)

        return ptr;

​

    zabbix_log(LOG_LEVEL_CRIT, "[file:%s,line:%d] zbx_wcsdup: out of memory. Requested " ZBX_FS_SIZE_T " bytes.",

            filename, line, (zbx_fs_size_t)((wcslen(str) + 1) * sizeof(wchar_t)));

​

    exit(EXIT_FAILURE);

}

​

static int  wmpoint_compare_func(const void *d1, const void *d2)

{

    const zbx_wmpoint_t *m1 = *(const zbx_wmpoint_t **)d1;

    const zbx_wmpoint_t *m2 = *(const zbx_wmpoint_t **)d2;

​

    return strcmp(m1->fsname, m2->fsname);

}

​

static int  get_fs_size_stat(const char *fs, zbx_uint64_t *total, zbx_uint64_t *not_used,

        zbx_uint64_t *used, double *pfree, double *pused, char **error)

{

    wchar_t     *wpath;

    ULARGE_INTEGER  freeBytes, totalBytes;

​

    wpath = zbx_utf8_to_unicode(fs);

    if (0 == GetDiskFreeSpaceEx(wpath, &freeBytes, &totalBytes, NULL))

    {

        zbx_free(wpath);

        *error = zbx_dsprintf(NULL, "Cannot obtain filesystem information: %s",

                zbx_strerror_from_system(GetLastError()));

        zabbix_log(LOG_LEVEL_DEBUG,"%s failed with error: %s",__func__, *error);

        return SYSINFO_RET_FAIL;

    }

    zbx_free(wpath);

​

    *total = totalBytes.QuadPart;

    *not_used = freeBytes.QuadPart;

​

    if (0 != totalBytes.QuadPart)

    {

        *used = totalBytes.QuadPart - freeBytes.QuadPart;

        *pfree = (double)(__int64)freeBytes.QuadPart * 100. / (double)(__int64)totalBytes.QuadPart;

        *pused = (double)((__int64)totalBytes.QuadPart - (__int64)freeBytes.QuadPart) * 100. /

                (double)(__int64)totalBytes.QuadPart;

    }

    else