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"

#include "zbxregexp.h"

#include "log.h"

#include "stats.h"

#include "proc.h"

​

extern int  CONFIG_TIMEOUT;

​

typedef struct

{

    pid_t       pid;

    uid_t       uid;

​

    char        *name;

​

    /* the process name taken from the 0th argument */

    char        *name_arg0;

​

    /* process command line in format <arg0> <arg1> ... <argN>\0 */

    char        *cmdline;

}

zbx_sysinfo_proc_t;

​

/******************************************************************************

 *                                                                            *

 * Function: zbx_sysinfo_proc_free                                            *

 *                                                                            *

 * Purpose: frees process data structure                                      *

 *                                                                            *

 ******************************************************************************/

static void zbx_sysinfo_proc_free(zbx_sysinfo_proc_t *proc)

{

    zbx_free(proc->name);

    zbx_free(proc->name_arg0);

    zbx_free(proc->cmdline);

​

    zbx_free(proc);

}

​

static int  get_cmdline(FILE *f_cmd, char **line, size_t *line_offset)

{

    size_t  line_alloc = ZBX_KIBIBYTE, n;

​

    rewind(f_cmd);

​

    *line = (char *)zbx_malloc(*line, line_alloc + 2);

    *line_offset = 0;

​

    while (0 != (n = fread(*line + *line_offset, 1, line_alloc - *line_offset, f_cmd)))

    {

        *line_offset += n;

​

        if (0 != feof(f_cmd))

            break;

​

        line_alloc *= 2;

        *line = (char *)zbx_realloc(*line, line_alloc + 2);

    }

​

    if (0 == ferror(f_cmd))

    {

        if (0 == *line_offset || '\0' != (*line)[*line_offset - 1])

            (*line)[(*line_offset)++] = '\0';

        if (1 == *line_offset || '\0' != (*line)[*line_offset - 2])

            (*line)[(*line_offset)++] = '\0';

​

        return SUCCEED;

    }

​

    zbx_free(*line);

​