Zabbix

/*

** 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 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"

​

static int  read_uint64_from_procfs(const char *path, zbx_uint64_t *value)

{

    int ret = SYSINFO_RET_FAIL;

    char    line[MAX_STRING_LEN];

    FILE    *f;

​

    if (NULL != (f = fopen(path, "r")))

    {

        if (NULL != fgets(line, sizeof(line), f))

        {

            if (1 == sscanf(line, ZBX_FS_UI64 "\n", value))

                ret = SYSINFO_RET_OK;

        }

        zbx_fclose(f);

    }

​

    return ret;

}

​

int KERNEL_MAXFILES(AGENT_REQUEST *request, AGENT_RESULT *result)

{

    zbx_uint64_t    value;

​

    ZBX_UNUSED(request);

​

    if (SYSINFO_RET_FAIL == read_uint64_from_procfs("/proc/sys/fs/file-max", &value))

    {

        SET_MSG_RESULT(result, zbx_strdup(NULL, "Cannot obtain data from /proc/sys/fs/file-max."));

        return SYSINFO_RET_FAIL;

    }

​

    SET_UI64_RESULT(result, value);

    return SYSINFO_RET_OK;

}

​

int KERNEL_MAXPROC(AGENT_REQUEST *request, AGENT_RESULT *result)

{

    zbx_uint64_t    value;

​

    ZBX_UNUSED(request);

​

    if (SYSINFO_RET_FAIL == read_uint64_from_procfs("/proc/sys/kernel/pid_max", &value))

    {

        SET_MSG_RESULT(result, zbx_strdup(NULL, "Cannot obtain data from /proc/sys/kernel/pid_max."));

        return SYSINFO_RET_FAIL;

    }

​

    SET_UI64_RESULT(result, value);

    return SYSINFO_RET_OK;

}