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int zbx_user_macro_parse(const char *macro, int *macro_r, int *context_l, int *context_r, unsigned char *context_op)/*** 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 macro name * * FAIL - otherwise * * * * Comments: allowed characters in macro names: '0-9A-Z._' * * !!! Don't forget to sync the code with PHP !!! * * * ******************************************************************************/int zbx_is_macro_char(unsigned char c){ if (0 != isupper(c)) return SUCCEED; if ('.' == c || '_' == c) return SUCCEED; if (0 != isdigit(c)) return SUCCEED; return FAIL;}/****************************************************************************** * * * Purpose: checks if name is valid discovery macro * * * * Return value: SUCCEED - name is valid discovery macro * * FAIL - otherwise * * * ******************************************************************************/int zbx_is_discovery_macro(const char *name){ if ('{' != *name++ || '#' != *name++) return FAIL; do { if (SUCCEED != zbx_is_macro_char(*name++)) return FAIL; } while ('}' != *name); if ('\0' != name[1]) return FAIL; return SUCCEED;