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 "../sysinfo.h"

​

int system_boottime(AGENT_REQUEST *request, AGENT_RESULT *result)

{

    FILE        *f;

    char        buf[MAX_STRING_LEN];

    int     ret = SYSINFO_RET_FAIL;

    unsigned long   value;

​

    ZBX_UNUSED(request);

​

    if (NULL == (f = fopen("/proc/stat", "r")))

    {

        SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot open /proc/stat: %s", zbx_strerror(errno)));

        return ret;

    }

​

    /* find boot time entry "btime [boot time]" */

    while (NULL != fgets(buf, MAX_STRING_LEN, f))

    {

        if (1 == sscanf(buf, "btime %lu", &value))

        {

            SET_UI64_RESULT(result, value);

​

            ret = SYSINFO_RET_OK;

​

            break;

        }

    }

    zbx_fclose(f);

​

    if (SYSINFO_RET_FAIL == ret)

        SET_MSG_RESULT(result, zbx_strdup(NULL, "Cannot find a line with \"btime\" in /proc/stat."));

​

    return ret;

}