Zabbix

/*

** 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 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 "zbxexpr.h"

​

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

 *                                                                            *

 * Return value:  SUCCEED - the char is allowed in the host name              *

 *                FAIL - otherwise                                            *

 *                                                                            *

 * Comments: in host name allowed characters: '0-9a-zA-Z. _-'                 *

 *           !!! Don't forget to sync the code with PHP !!!                   *

 *                                                                            *

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

int zbx_is_hostname_char(unsigned char c)

{

    if (0 != isalnum(c))

        return SUCCEED;

​

    if (c == '.' || c == ' ' || c == '_' || c == '-')

        return SUCCEED;

​

    return FAIL;

}

​

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

 *                                                                            *

 * Purpose: return hostname and key                                           *

 *          <hostname:>key                                                    *

 *                                                                            *

 * Parameters:                                                                *

 *         exp - pointer to the first char of hostname                        *

 *                host:key[key params]                                        *

 *                ^                                                           *

 *                                                                            *

 * Return value: return SUCCEED or FAIL                                       *

 *                                                                            *

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

int zbx_parse_host_key(char *exp, char **host, char **key)

{

    char    *p, *s;

​

    if (NULL == exp || '\0' == *exp)

        return FAIL;

​

    for (p = exp, s = exp; '\0' != *p; p++) /* check for optional hostname */

    {