Zabbix

/*

** Copyright (C) 2001-2024 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 "../sysinfo.h"

​

static int  read_uint64_from_procfs(const char *path, int first_num, 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 == first_num)

            {

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

                    ret = SYSINFO_RET_OK;

            }

            else

            {

                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", 0, &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;