Zabbix
Public
Source
if ('\0' != *(str += len) && 0 != (flags & ZBX_FLAG_DOUBLE_SUFFIX) && NULL != strchr(ZBX_UNIT_SYMBOLS, *str))/*** 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/>.**//****************************************************************************** * * * Return value: SUCCEED - char is allowed in item key * * FAIL - otherwise * * * * Comments: allowed characters in key are: '0-9a-zA-Z._-' * * !!! Don't forget to sync the code with PHP !!! * * * ******************************************************************************/int zbx_is_key_char(unsigned char c){ if (0 != isalnum(c)) return SUCCEED; if (c == '.' || c == '_' || c == '-') return SUCCEED; return FAIL;}/****************************************************************************** * * * Purpose: Advances pointer to first invalid character in string * * ensuring that everything before it is a valid key. * * * * e.g., system.run[cat /etc/passwd | awk -F: '{ print $1 }'] * * * * Parameters: exp - [IN/OUT] pointer to first char of key * * * * e.g., {host:system.run[cat /etc/passwd | awk -F: '{ print $1 }'].last(0)} * * ^ * * Return value: Returns FAIL only if no key is present (length 0), * * or the whole string is invalid. SUCCEED otherwise. * * * * Comments: The pointer is advanced to the first invalid character even if * * FAIL is returned (meaning there is a syntax error in item key). * * If necessary, the caller must keep a copy of pointer original * * value. * * * ******************************************************************************/int zbx_parse_key(const char **exp){ const char *s;